.skip-link { position: fixed; z-index: 50; top: -80px; left: 1rem; padding: .65rem 1rem; border-radius: var(--radius-base); background: var(--color-primary); color: white; }
.skip-link:focus { top: 1rem; color: white; }

.app-shell { display: grid; grid-template-columns: 252px minmax(0, 1fr); min-height: 100vh; }
.app-shell--public { display: block; }
.sidebar { position: sticky; top: 0; display: flex; flex-direction: column; min-width: 0; height: 100vh; padding: 27px 16px 22px; background: var(--color-surface-glass); border-right: var(--hairline); backdrop-filter: blur(18px); }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 10px 22px; border-radius: var(--radius-base); color: var(--color-on-surface); text-decoration: none; font-size: 1.55rem; font-weight: 750; letter-spacing: -.05em; line-height: 1; }
.brand:hover { color: var(--color-on-surface); }
.brand img { width: 43px; height: 48px; object-fit: contain; flex: none; }
.brand .brand-mark--dark { display: none; }
html[data-theme="dark"] .brand .brand-mark--light { display: none; }
html[data-theme="dark"] .brand .brand-mark--dark { display: block; }
.brand span { display: grid; gap: 4px; }
.brand small { font-size: .54rem; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; color: var(--color-muted); }
.workspace-label { display: grid; gap: 4px; min-width: 0; margin: 3px 10px 22px; padding: 14px 0 15px; border-top: var(--hairline); border-bottom: var(--hairline); }
.workspace-label span { font-size: .64rem; font-weight: 750; letter-spacing: .15em; color: var(--color-muted); }
.workspace-label strong { overflow-wrap: anywhere; font-size: .9rem; font-weight: 650; }
.nav-list { display: grid; gap: 4px; }
.nav-list a { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 9px 12px; border: 1px solid var(--color-line); border-radius: 10px; background: var(--color-nav-glass); color: var(--color-muted); text-decoration: none; font-size: .92rem; font-weight: 600; transition: background var(--dur-toque) var(--ease-saida), color var(--dur-toque) var(--ease-saida), border-color var(--dur-toque) var(--ease-saida); }
.nav-list a:hover { background: var(--color-surface-glass-strong); border-color: var(--color-line); color: var(--color-on-surface); }
.nav-list a[aria-current="page"] { background: var(--gradient-user); border-color: var(--color-line-strong); color: var(--color-primary-strong); box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.nav-icon { display: inline-grid; place-items: center; width: 21px; font-size: 1.05rem; font-weight: 400; }
.sidebar-bottom { margin-top: auto; padding: 18px 11px 0; border-top: var(--hairline); }
.sidebar-note { margin-bottom: 14px; color: var(--color-muted); font-size: .78rem; line-height: 1.5; }
.main-content { min-width: 0; width: min(100%, var(--largura-max)); margin-inline: auto; padding: 29px var(--respiro-x) 54px; }
.app-shell--public .main-content { width: 100%; min-height: 100vh; padding: 0; }
.app-topbar { position: relative; z-index: 20; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 48px; margin: -6px 0 26px; }
.app-topbar-context { overflow: hidden; color: var(--color-muted); font-size: .73rem; font-weight: 750; letter-spacing: .11em; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.account-menu { position: relative; flex: none; }
.account-menu-trigger { display: flex; align-items: center; gap: 9px; min-height: 43px; padding: 3px 12px 3px 4px; border: 1px solid var(--color-line-strong); border-radius: 13px; background: var(--color-surface-glass); color: var(--color-on-surface); box-shadow: inset 0 1px 0 var(--color-glass-edge); cursor: pointer; list-style: none; font-size: .84rem; font-weight: 680; transition: border-color var(--dur-toque) var(--ease-saida), background var(--dur-toque) var(--ease-saida); }
.account-menu-trigger::-webkit-details-marker { display: none; }
.account-menu-trigger:hover, .account-menu[open] .account-menu-trigger { border-color: var(--color-secondary); background: var(--color-surface-glass-strong); }
.account-avatar { display: grid; place-items: center; flex: none; width: 34px; height: 34px; border: 1px solid rgb(255 255 255 / .3); border-radius: 10px; background: var(--gradient-brand); color: white; box-shadow: var(--shadow-button); font-size: .85rem; font-weight: 760; line-height: 1; }
.account-avatar--large { width: 42px; height: 42px; border-radius: 12px; font-size: 1rem; }
.account-menu-panel { position: absolute; top: calc(100% + 10px); right: 0; width: 305px; max-width: calc(100vw - 24px); max-height: calc(100dvh - 100px); overflow-y: auto; padding: 9px; border: 1px solid var(--color-line-strong); border-radius: 17px; background: var(--color-surface); box-shadow: 0 20px 55px rgb(8 28 53 / .2), inset 0 1px 0 var(--color-glass-edge); }
.account-menu-heading { display: flex; align-items: center; gap: 11px; min-width: 0; margin: 0 3px 7px; padding: 10px 8px 15px; border-bottom: var(--hairline); }
.account-menu-person { min-width: 0; }
.account-menu-person strong { display: block; overflow-wrap: anywhere; font-size: .85rem; line-height: 1.3; }
.account-menu-person span { display: block; margin-top: 3px; color: var(--color-muted); font-size: .72rem; }
.account-menu-actions { display: grid; gap: 3px; }
.account-menu-action { display: flex; align-items: center; gap: 10px; width: 100%; min-height: 46px; padding: 7px 10px; border: 1px solid transparent; border-radius: 10px; background: transparent; color: var(--color-on-surface); cursor: pointer; text-align: left; text-decoration: none; font-size: .8rem; font-weight: 650; transition: background var(--dur-toque) var(--ease-saida), border-color var(--dur-toque) var(--ease-saida); }
.account-menu-action > span:nth-child(2) { flex: 1; }
.account-menu-action:hover, .account-menu-action[aria-current="page"] { border-color: var(--color-line); background: var(--color-accent-soft); color: var(--color-primary-strong); }
.account-workspaces { border-top: var(--hairline); padding-top: var(--space-2); margin-top: var(--space-2); }
.account-workspaces > strong { display: block; color: var(--color-muted); font-size: var(--ui-small); padding: var(--space-2); }
.account-workspaces .account-menu-action { min-width: 0; justify-content: space-between; }
.workspace-choice-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-workspaces .account-menu-action:disabled { opacity: .75; cursor: default; }
.account-menu-action-icon { display: grid; place-items: center; flex: none; width: 30px; height: 30px; border: 1px solid var(--color-line); border-radius: 9px; background: var(--color-nav-glass); color: var(--color-primary); font-size: 1rem; font-weight: 700; }
.account-menu-exit { margin: 7px 0 0; padding-top: 7px; border-top: var(--hairline); }
.account-menu-signout:hover { background: var(--color-danger-soft); color: var(--color-danger); }
.account-menu-action-icon .organization-icon { width: 18px; height: 18px; }
.account-menu-theme { display: grid; grid-template-columns: 30px minmax(0, 1fr) 44px; align-items: center; gap: 10px; min-height: 46px; margin-top: var(--space-2); padding: 10px; border-top: var(--hairline); color: var(--color-on-surface); font-size: .8rem; font-weight: 650; }
.account-theme-toggle { display: inline-flex; align-items: center; justify-content: flex-start; width: 44px; min-width: 44px; height: 26px; min-height: 26px; margin: 0; padding: 3px; border: 1px solid var(--color-line-strong); border-radius: 99px; background: var(--color-bg-alt); cursor: pointer; transition: background var(--dur-toque) var(--ease-saida); }
.account-theme-toggle > span { display: block; flex: 0 0 18px; width: 18px; height: 18px; border-radius: 50%; background: var(--color-muted); transition: transform var(--dur-toque) var(--ease-saida), background var(--dur-toque) var(--ease-saida); }
.account-theme-toggle[aria-checked="true"] { background: var(--gradient-brand); border-color: var(--color-primary); }
.account-theme-toggle[aria-checked="true"] > span { transform: translateX(18px); background: var(--color-on-brand); }
.account-summary { display: flex; align-items: center; gap: 14px; margin-bottom: 24px; padding-bottom: 22px; border-bottom: var(--hairline); }
.account-summary h2 { margin: 0 0 3px; }
.account-summary p { margin: 0; color: var(--color-muted); font-size: .82rem; overflow-wrap: anywhere; }
.notice-stack { display: grid; gap: 8px; margin-bottom: 18px; }
.notice { padding: 11px 15px; border: 1px solid var(--color-line); border-radius: var(--radius-base); background: var(--color-surface-glass-strong); box-shadow: var(--shadow-panel); font-size: .9rem; }
.notice--error { border-color: var(--color-danger); background: var(--color-danger-soft); color: var(--color-danger); }
.notice--success { border-color: var(--color-success); background: var(--color-success-soft); color: var(--color-success); }
.notice--info { background: var(--color-accent-soft); color: var(--color-primary-strong); }

.eyebrow { margin-bottom: 8px; color: var(--color-primary); font-size: .67rem; font-weight: 760; letter-spacing: .16em; line-height: 1.4; }
.muted { color: var(--color-muted); }
.page-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 22px; margin-bottom: 27px; }
.page-header h1 { margin-bottom: 8px; }
.page-header p:last-child { margin-bottom: 0; color: var(--color-muted); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 9px 17px; border: 1px solid transparent; border-radius: 10px; text-decoration: none; font-weight: 690; line-height: 1.25; white-space: nowrap; transition: transform var(--dur-toque) var(--ease-saida), background var(--dur-toque) var(--ease-saida), border-color var(--dur-toque) var(--ease-saida), box-shadow var(--dur-toque) var(--ease-saida); }
.button:hover { transform: translateY(-1px); text-decoration: none; }
.button--primary { background: var(--gradient-brand); border-color: var(--color-primary); color: var(--color-on-brand); box-shadow: var(--shadow-button); }
.button--primary:hover { background: var(--gradient-brand-hover); color: var(--color-on-brand); box-shadow: var(--shadow-button-hover); }
.button--secondary { background: var(--gradient-panel); border-color: var(--color-line-strong); color: var(--color-on-surface); box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.button--secondary:hover { background: var(--color-bg-alt); border-color: var(--color-muted); color: var(--color-on-surface); }
.button--success, .button--explore, .button--warning, .button--danger { color: #fff; box-shadow: var(--shadow-button); }
.button--success { background: var(--gradient-action-success); border-color: var(--color-action-success); }
.button--explore { background: var(--gradient-action-explore); border-color: var(--color-action-explore); }
.button--warning { background: var(--gradient-action-warning); border-color: var(--color-action-warning); }
.button--danger { background: var(--gradient-action-danger); border-color: var(--color-action-danger); }
.button--success:hover, .button--explore:hover, .button--warning:hover, .button--danger:hover { color: #fff; box-shadow: var(--shadow-button-hover); filter: brightness(1.07); }
.button--small { min-height: 34px; padding: 6px 11px; border-radius: 8px; font-size: .77rem; }
.surface { min-width: 0; border: 1px solid var(--color-glass-edge); border-radius: var(--radius-large); background: var(--gradient-panel); box-shadow: var(--shadow-panel); backdrop-filter: blur(14px); }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 14px; margin-bottom: 19px; }
.section-heading h2 { margin: 0; }
.section-heading a { flex: none; }
.section-heading .eyebrow { margin-bottom: 5px; }
.mini-tag { display: inline-flex; align-items: center; min-height: 24px; padding: 3px 9px; border-radius: 99px; background: var(--color-accent-soft); color: var(--color-primary-strong); font-size: .7rem; font-weight: 700; white-space: nowrap; }
.mini-tag--pending { background: var(--color-warning-soft); color: var(--color-warning); }
.empty-state { display: grid; justify-items: start; gap: 7px; padding: 25px 4px 8px; }
.empty-state strong, .empty-state h2 { margin: 0; }
.empty-state p { max-width: 48ch; margin: 0 0 9px; color: var(--color-muted); }

.setup-banner { margin: -8px 0 24px; padding: 13px 17px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-base); background: var(--gradient-user); box-shadow: inset 0 1px 0 var(--color-glass-edge); color: var(--color-primary-strong); font-size: .88rem; }
.dashboard-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(225px, 280px); gap: 18px; align-items: start; }
.dashboard-grid > .surface { padding: 23px 25px; }
.dashboard-aside { display: grid; gap: 18px; }
.context-card { padding: 22px 23px; }
.context-card h3 { margin: 0 0 8px; }
.context-card p { color: var(--color-muted); font-size: .88rem; }
.context-card a { font-weight: 670; }
.big-number { display: block; margin: 0; font-size: 2.7rem; font-weight: 720; line-height: 1; letter-spacing: -.06em; }
.line-item { display: flex; align-items: center; justify-content: space-between; gap: 15px; min-width: 0; padding: 14px 0; border-top: var(--hairline); }
.line-item > div { display: grid; gap: 3px; min-width: 0; }
.line-item strong { font-size: .98rem; }
.line-item span:not(.mini-tag), .line-item time { color: var(--color-muted); font-size: .82rem; }
.line-item time { white-space: nowrap; }
.history-panel { margin-top: 18px; padding: 23px 25px 9px; }
.history-panel > .muted { padding-bottom: 12px; }

.list-surface { padding: 5px 25px; }
.task-row { display: flex; justify-content: space-between; align-items: center; gap: 25px; padding: 23px 0; border-bottom: var(--hairline); }
.task-row:last-child { border-bottom: 0; }
.task-row > div { min-width: 0; }
.task-row h2 { margin: 0 0 5px; font-size: 1.12rem; }
.task-row p { max-width: 73ch; margin: 0 0 10px; color: var(--color-muted); font-size: .88rem; }
.task-actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 9px; flex: none; }
.task-actions .button { font-weight: 650; }
.task-row .eyebrow { margin-bottom: 6px; }
.reading-surface { max-width: 960px; padding: clamp(22px, 4vw, 47px); }
.reading-surface p { overflow-wrap: anywhere; }
.source-note { margin-top: 12px; }
.document-text { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.75; }

.form-surface { max-width: 810px; padding: clamp(21px, 3vw, 35px); }
.stack-form { display: grid; gap: 18px; }
.stack-form > div { display: grid; gap: 7px; min-width: 0; }
.stack-form label, .composer > label { color: var(--color-on-surface); font-size: .83rem; font-weight: 700; }
.stack-form input:not([type="checkbox"]), .stack-form textarea, .stack-form select, .composer textarea { width: 100%; min-width: 0; padding: 10px 12px; border: var(--hairline); border-radius: 9px; background: var(--color-surface); color: var(--color-on-surface); }
.stack-form input:focus, .stack-form textarea:focus, .stack-form select:focus, .composer textarea:focus { border-color: var(--color-primary); outline: 2px solid var(--color-accent-soft); }
.stack-form textarea { min-height: 110px; resize: vertical; }
.stack-form input[type="file"] { padding: 9px; }
.stack-form [id$="references"] { display: grid; gap: 6px; padding: 11px 13px; border: var(--hairline); border-radius: 9px; }
.stack-form [id$="references"] label { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.stack-form .helptext { color: var(--color-muted); font-size: .78rem; }
.stack-form .errorlist, .composer .errorlist { margin: 0; padding: 9px 12px; border-radius: 8px; background: var(--color-danger-soft); color: var(--color-danger); list-style: none; font-size: .82rem; }
.form-actions { display: flex !important; flex-direction: row; align-items: center; gap: 17px !important; padding-top: 8px; }

.chat-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 300px); gap: 20px; align-items: start; }
.chat-main { min-width: 0; border: 1px solid var(--color-glass-edge); border-radius: var(--radius-large); background: var(--color-surface-glass-strong); box-shadow: var(--shadow-panel); backdrop-filter: blur(14px); }
.chat-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; padding: 27px 31px 23px; border-bottom: var(--hairline); border-radius: var(--radius-large) var(--radius-large) 0 0; background: var(--gradient-panel-head); }
.chat-header h1 { max-width: 25ch; margin: 0 0 8px; font-size: clamp(1.45rem, 2vw, 2rem); }
.chat-header p:last-child { max-width: 70ch; margin-bottom: 0; color: var(--color-muted); font-size: .9rem; }
.chat-header .button { flex: none; }
.message-stream { display: grid; align-content: start; gap: 0; min-height: 390px; padding: 4px 30px 28px; }
.message { display: flex; align-items: flex-start; gap: 13px; min-width: 0; padding: 25px 0; border-bottom: var(--hairline); }
.message:last-child { border-bottom: 0; }
.message-avatar { display: grid; place-items: center; flex: 0 0 38px; width: 38px; height: 38px; border: 1px solid var(--color-line); border-radius: 11px; background: var(--gradient-user); color: var(--color-primary); box-shadow: inset 0 1px 0 var(--color-glass-edge); font-weight: 750; }
.message-avatar img { width: 39px; height: 39px; object-fit: contain; filter: drop-shadow(0 3px 6px rgb(28 80 143 / .2)); }
.message--assistant .message-avatar { overflow: visible; border-color: var(--color-glass-edge); background: radial-gradient(circle at 30% 20%, var(--color-halo), var(--color-surface)); }
.message-body { min-width: 0; flex: 1; }
.message-meta { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 4px 12px; margin: 1px 0 11px; }
.message-meta strong { font-size: .86rem; }
.message-meta time { color: var(--color-muted); font-size: .73rem; }
.message-text { white-space: pre-wrap; overflow-wrap: anywhere; line-height: 1.75; }
.message--user { justify-content: flex-end; flex-direction: row-reverse; }
.message--user .message-avatar { background: var(--color-bg-alt); color: var(--color-on-surface); }
.message--user .message-body { flex: 0 1 auto; width: fit-content; max-width: 88%; margin-left: auto; padding: 15px 18px; border: 1px solid var(--color-glass-edge); border-radius: 13px 4px 13px 13px; background: var(--gradient-user); box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.message--user .message-meta { margin-bottom: 7px; }
.norm-discoveries { display: grid; gap: 9px; margin-top: 14px; min-width: 0; }
.norm-discovery { display: grid; gap: 7px; min-width: 0; padding: 13px; border: 1px solid var(--color-line-strong); border-radius: 12px; background: var(--color-surface-glass); box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.norm-discovery-heading { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; }
.norm-discovery-heading strong { color: var(--color-primary-strong); font-size: .85rem; }
.norm-discovery p { margin: 0; color: var(--color-on-surface); font-size: .77rem; line-height: 1.48; }
.norm-discovery .norm-discovery-note { color: var(--color-muted); }
.norm-discovery-actions, .norm-discovery-research > div { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.norm-discovery-actions form { margin: 0; }
.norm-discovery-research { color: var(--color-muted); font-size: .72rem; }
.norm-discovery-research summary { cursor: pointer; }
.norm-discovery-research > div { margin-top: 8px; }
.message-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 16px; font-size: .78rem; }
.message-actions a { font-weight: 680; }
.message-actions-title { margin: var(--space-5) 0 var(--space-2); font-size: .9rem; }
.message-actions-title + .message-actions { margin-top: 0; }
.message-consumption { display: flex; align-items: center; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-4); padding-top: var(--space-3); border-top: 1px solid var(--color-line); font-size: .75rem; color: var(--color-muted); }
.guidance-preview-copy { margin-block: var(--space-4); padding-block: var(--space-3); border-block: 1px solid var(--color-line); line-height: 1.65; }
.message-actions span { color: var(--color-muted); }
.message-badges { display: flex; flex-wrap: wrap; gap: 6px; }
.claim-group { width: 100%; min-width: 0; margin: 0 0 14px; padding: 12px 15px 4px; border: 1px solid var(--color-line); border-radius: 12px; background: var(--color-surface-glass); }
.claim-group h3 { margin: 0 0 3px; color: var(--color-primary-strong); font-size: .81rem; font-weight: 750; }
.claim-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: start; gap: 10px; width: 100%; min-width: 0; padding: 11px 0; border-bottom: var(--hairline); }
.claim-row:last-child { border-bottom: 0; }
.claim-row .message-badges { justify-content: flex-end; flex: none; }
.meta-badge--source-icon { display: grid; place-items: center; flex: none; width: 31px; min-width: 31px; height: 31px; min-height: 31px; padding: 0; border-radius: 9px; color: var(--color-primary); }
.meta-badge--source-icon svg { display: block; }
.model-attached { margin-top: 10px; }
.response-tail { margin-top: 12px; color: var(--color-muted); font-size: .84rem; }
.info-popover { display: inline-flex; }
.meta-badge { max-width: 240px; min-height: 29px; padding: 4px 9px; border: 1px solid var(--color-line); border-radius: 999px; background: var(--color-surface-glass); color: var(--color-muted); font: inherit; font-size: .72rem; text-align: left; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; }
.meta-badge:hover, .meta-badge[aria-expanded="true"] { border-color: var(--color-line-strong); color: var(--color-primary); background: var(--color-accent-soft); }
.meta-badge:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.meta-badge--model { max-width: 280px; }
.chat-cost { display: block; margin-top: 3px; color: var(--color-muted); font-size: .68rem; font-variant-numeric: tabular-nums; }
.chat-cost[hidden] { display: none; }
.popover-panel { position: fixed; z-index: 30; display: grid; gap: 8px; max-width: calc(100vw - 24px); padding: 15px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-base); background: var(--color-surface); box-shadow: var(--shadow-panel); color: var(--color-on-surface); font-size: .78rem; line-height: 1.45; white-space: normal; }
.popover-panel[hidden] { display: none; }
.popover-panel strong { color: var(--color-on-surface); font-size: .85rem; }
.popover-panel span, .popover-panel small { color: var(--color-muted); overflow-wrap: anywhere; }
.popover-panel .button { justify-self: start; }
.popover-panel { max-height: calc(100dvh - 24px); overflow-y: auto; }
.source-info-trigger { display: inline-grid; place-items: center; min-width: 30px; width: 30px; height: 30px; min-height: 30px; padding: 0; border-radius: 50%; color: var(--color-primary-strong); }
.source-info-trigger svg { display: block; }
.validation-summary { flex: 1; }
.validation-title, .source-capture-meta { display: flex; align-items: center; gap: var(--space-2); min-width: 0; }
.validation-title h2 { margin: 0; overflow-wrap: anywhere; }
.validation-title .info-popover, .source-capture-meta .info-popover { flex: none; }
.validation-summary > p:last-child { margin-block: var(--space-2) 0; }
.source-capture-meta p { margin: 0; font-size: .8rem; }
.source-capture-meta { flex-wrap: wrap; }
.source-capture-meta > p { flex: 1; min-width: 180px; }
.message--live .message-text:empty { min-height: 1.4em; }
.bot-status { display: inline-flex; align-items: center; gap: 8px; margin: 8px 0 0; color: var(--color-primary); font-size: .8rem; font-weight: 650; }
.bot-status::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 0 5px var(--color-halo); animation: bot-pulse 1.2s ease-in-out infinite; }
.bot-elapsed { display: inline-block; margin-left: 12px; color: var(--color-muted); font-size: .75rem; font-variant-numeric: tabular-nums; }
.review-progress { display: grid; grid-template-columns: 74px minmax(0, 1fr); gap: 15px; align-items: center; max-width: 520px; margin-top: 14px; padding: 12px 15px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-base); background: var(--gradient-panel); box-shadow: var(--shadow-panel); }
.review-progress[hidden] { display: none; }
.review-progress-scene { position: relative; min-height: 64px; }
.review-progress-scene img { position: absolute; z-index: 2; left: 0; top: 3px; width: 51px; height: 57px; object-fit: contain; filter: drop-shadow(0 5px 8px var(--color-halo)); }
.review-progress-page { position: absolute; right: 1px; top: 5px; width: 29px; height: 38px; border: 1px solid var(--color-secondary); border-radius: 4px; background: var(--color-surface); box-shadow: 0 4px 10px var(--color-halo); transform: rotate(9deg); }
.review-progress-page::after { content: ""; position: absolute; left: 6px; top: 12px; width: 14px; height: 12px; border-block: 2px solid var(--color-line-strong); }
.review-progress-lens { position: absolute; z-index: 3; right: 0; bottom: 9px; width: 18px; height: 18px; border: 3px solid var(--color-primary); border-radius: 50%; box-shadow: 0 0 9px var(--color-halo); animation: review-scan 2.8s var(--ease-saida) infinite alternate; }
.review-progress-lens::after { content: ""; position: absolute; width: 10px; height: 3px; top: 12px; left: 11px; border-radius: 2px; background: var(--color-primary); transform: rotate(45deg); }
.review-progress-content { display: grid; gap: 3px; min-width: 0; }
.review-progress-content strong { font-size: .82rem; color: var(--color-primary-strong); }
.review-progress-content > span { color: var(--color-muted); font-size: .73rem; }
.review-progress-content progress { width: 100%; height: 9px; margin: 5px 0 0; border: 0; border-radius: 999px; overflow: hidden; accent-color: var(--color-primary); }
.review-progress-content progress::-webkit-progress-bar { border-radius: 999px; background: var(--color-halo); }
.review-progress-content progress::-webkit-progress-value { border-radius: 999px; background: var(--gradient-brand); }
.review-progress-content progress::-moz-progress-bar { border-radius: 999px; background: var(--color-primary); }
.review-progress-meta { font-variant-numeric: tabular-nums; }
@keyframes review-scan { to { transform: translate(-15px, -11px); } }
@media (prefers-reduced-motion: reduce) { .review-progress-lens { animation: none; } }
.message--error .bot-status, .message--error .message-text { color: var(--color-danger); }
.reply-recovery { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 8px 0 18px 52px; padding: 12px 14px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-base); background: var(--color-surface); }
.reply-recovery p { flex: 1 1 220px; margin: 0; color: var(--color-muted); font-size: .84rem; }
.reply-recovery [hidden] { display: none; }
.reply-recovery:has([data-recovery-progress]:not([hidden])) { display: grid; border: 0; padding: 0; background: transparent; }
.reply-recovery .review-progress { width: 100%; max-width: none; margin-top: 0; }
.message-followup { color: var(--color-muted); font-size: .85rem; }
@media (max-width: 600px) { .reply-recovery { margin-left: 0; } }
.composer-error { margin: 0; padding: 9px 12px; border-radius: 8px; background: var(--color-danger-soft); color: var(--color-danger); font-size: .82rem; }
.clarification-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.clarification-input { display: grid; gap: 8px; flex-basis: 100%; max-width: 440px; color: var(--color-muted); font-size: .8rem; }
.clarification-input[hidden] { display: none; }
.clarification-input input { min-height: 39px; padding: 8px 11px; border: var(--hairline); border-radius: 9px; background: var(--color-surface); color: var(--color-on-surface); font: inherit; }
.clarification-input .button { justify-self: start; }
@keyframes bot-pulse { 50% { opacity: .45; box-shadow: 0 0 0 8px var(--color-halo); } }
@media (prefers-reduced-motion: reduce) { .bot-status::before { animation: none; } }
.attachment-link { display: flex; align-items: center; justify-content: space-between; gap: 10px; max-width: 430px; min-width: 0; margin-top: 14px; padding: 10px 13px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--gradient-panel); color: var(--color-on-surface); text-decoration: none; overflow-wrap: anywhere; font-size: .84rem; box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.attachment-link:hover { border-color: var(--color-secondary); background: var(--color-accent-soft); }
.attachment-link small { flex: none; color: var(--color-primary); font-weight: 700; }
.chat-empty { display: grid; justify-items: center; align-content: center; min-height: 350px; padding: 32px; text-align: center; }
.chat-empty img { width: 108px; height: 108px; margin-bottom: 20px; object-fit: contain; filter: drop-shadow(0 8px 17px rgb(28 80 143 / .18)); }
.chat-empty h2 { margin-bottom: 7px; }
.chat-empty p { max-width: 46ch; color: var(--color-muted); }
.composer { position: sticky; bottom: 0; z-index: 2; display: grid; gap: 8px; padding: 18px 30px 22px; border-top: var(--hairline); border-radius: 0 0 var(--radius-large) var(--radius-large); background: var(--color-surface-glass-strong); backdrop-filter: blur(15px); box-shadow: var(--shadow-composer); }
.composer textarea { min-height: 86px; max-height: 220px; resize: vertical; }
.composer-bottom { display: flex; align-items: center; flex-wrap: wrap; gap: 9px 13px; }
.composer-bottom > span { color: var(--color-muted); font-size: .72rem; }
.composer-bottom:not(:has(.attached-model:not([hidden]), #selected-files:not(:empty))) { display: none; }
.composer-editor { display: grid; grid-template-columns: minmax(0, 1fr) 44px; gap: 9px; align-items: stretch; }
.composer-field { min-width: 0; display: grid; gap: 5px; }
.composer-controls { display: flex; flex-direction: column; justify-content: space-between; gap: 8px; }
.composer .composer-controls .button { width: 44px; height: 44px; min-height: 44px; padding: 0; display: grid; place-items: center; flex: none; border-radius: var(--radius-base); }
.composer .composer-controls .attachment-add { font-size: 1.5rem; font-weight: 400; }
.composer-controls .attachment-menu { left: auto; right: 0; }
.composer-send .organization-icon { width: 21px; height: 21px; }
.composer-field textarea { display: block; height: 96px; }
.upload-control { position: relative; display: inline-flex; align-items: center; min-height: 37px; padding: 7px 12px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--gradient-panel); color: var(--color-primary); font-size: .79rem; font-weight: 680; cursor: pointer; }
.upload-control:hover { border-color: var(--color-secondary); background: var(--color-accent-soft); }
.upload-control input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.upload-control:focus-within { outline: 3px solid var(--color-primary); outline-offset: 2px; }
.source-row { display: grid; gap: 4px; min-width: 0; padding: 10px 11px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--color-surface-glass); color: var(--color-on-surface); text-decoration: none; overflow-wrap: anywhere; font-size: .8rem; box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.source-row:hover { background: var(--color-accent-soft); border-color: var(--color-secondary); }
.source-row small { color: var(--color-muted); }
.context-warning { padding: 11px; border-radius: 9px; background: var(--color-warning-soft); color: var(--color-warning); font-size: .78rem; }

.auth-wrap { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 490px); min-height: 100vh; }
.auth-intro { display: flex; flex-direction: column; justify-content: center; align-items: flex-start; padding: clamp(35px, 8vw, 110px); background: var(--gradient-auth); color: white; }
.auth-intro img { width: min(330px, 70%); height: auto; margin: 0 0 35px; }
.auth-intro .eyebrow { color: var(--color-secondary); }
.auth-intro h1 { max-width: 13ch; font-size: clamp(2.5rem, 5vw, 4.6rem); }
.auth-intro p:last-child { max-width: 46ch; color: var(--color-auth-copy); font-size: 1.06rem; }
.auth-panel { display: flex; flex-direction: column; justify-content: center; padding: clamp(25px, 5vw, 65px); background: var(--color-surface-glass-strong); backdrop-filter: blur(15px); }
.auth-panel h2 { margin-bottom: 23px; font-size: 1.9rem; }
.auth-panel .stack-form { margin-bottom: 22px; }
.auth-panel .stack-form button { justify-self: start; }
.auth-panel .stack-form .helptext, .auth-panel .stack-form ul:not(.errorlist) { color: var(--color-muted); font-size: .75rem; }
.auth-switch { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; color: var(--color-muted); font-size: .88rem; }

@media (max-width: 800px) {
  .app-shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: relative; height: auto; padding: 12px var(--respiro-x) 8px; border-right: 0; border-bottom: var(--hairline); }
  .brand { padding: 0 0 8px; font-size: 1.25rem; }
  .brand img { width: 34px; height: 38px; }
  .workspace-label, .sidebar-bottom { display: none; }
  .nav-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 4px; }
  .nav-list a { justify-content: center; min-height: 36px; padding: 5px 3px; white-space: nowrap; font-size: .74rem; }
  .nav-icon { display: none; }
  .main-content { padding-top: 22px; }
  .app-topbar { margin: -5px 0 20px; }
  .dashboard-grid { grid-template-columns: minmax(0, 1fr); }
  .dashboard-aside { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .auth-wrap { grid-template-columns: minmax(0, 1fr); }
  .auth-intro { min-height: 300px; padding: 38px var(--respiro-x); }
  .auth-intro img { width: min(260px, 76%); margin-bottom: 22px; }
  .auth-intro h1 { max-width: none; font-size: 2.4rem; }
  .auth-panel { padding: 35px var(--respiro-x) 55px; }
}

@media (max-width: 560px) {
  .main-content { padding-bottom: 35px; }
  .account-menu-trigger-label { display: none; }
  .account-menu-trigger { padding-right: 4px; }
  .app-topbar-context { max-width: calc(100vw - 115px); }
  .page-header { align-items: stretch; flex-direction: column; gap: 14px; }
  .page-header .button { align-self: flex-start; }
  .dashboard-aside { grid-template-columns: minmax(0, 1fr); }
  .dashboard-grid > .surface, .history-panel, .context-card { padding: 19px; }
  .line-item { align-items: flex-start; }
  .line-item time { white-space: normal; text-align: right; }
  .task-row { align-items: flex-start; flex-direction: column; gap: 10px; }
  .chat-header { flex-direction: column; padding: 21px; }
  .message-stream { padding: 2px 18px 22px; min-height: 280px; }
  .message { gap: 9px; }
  .message-avatar { flex-basis: 30px; width: 30px; height: 30px; }
  .message-avatar img { width: 24px; height: 26px; }
  .message--user .message-body { max-width: 92%; }
  .composer { position: static; padding: 18px; }
  .composer-bottom > span { order: 3; width: 100%; }
  .auth-intro { min-height: 240px; }
  .auth-intro h1 { font-size: 2.1rem; }
}

/* Chat-first shell: the application menu stays above the project history. */
.app-shell:not(.app-shell--public) { grid-template-areas: "topbar topbar" "sidebar main"; grid-template-rows: auto minmax(0, 1fr); }
.app-shell:not(.app-shell--public) > .app-topbar { grid-area: topbar; position: sticky; top: 0; z-index: 35; display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr); min-height: 72px; margin: 0; padding: 10px var(--respiro-x); border-bottom: var(--hairline); background: var(--color-surface-glass-strong); backdrop-filter: blur(20px); }
.app-topbar .brand { flex: none; padding: 0; }
.app-topbar .brand img { width: 40px; height: 44px; }
.app-topbar .brand { justify-self: start; }
.app-topbar .account-menu { justify-self: end; }
.topbar-actions { display: grid; grid-template-columns: repeat(3, minmax(104px, 1fr)); align-items: center; gap: var(--space-2); min-width: 0; }
.topbar-actions .topbar-nav-button { position: relative; gap: var(--space-2); height: 40px; min-height: 40px; padding: 8px 14px; font-size: var(--ui-small); white-space: nowrap; }
.topbar-actions .topbar-nav-button[aria-current="page"] { border-color: var(--color-primary); background: var(--gradient-brand); color: var(--color-on-brand); box-shadow: var(--shadow-button); }
.topbar-nav-count { position: absolute; top: -6px; right: -5px; display: grid; place-items: center; min-width: 20px; height: 20px; padding-inline: 4px; border: 1px solid var(--color-line-strong); border-radius: 99px; background: var(--color-warning-soft); color: var(--color-warning); font-size: .625rem; line-height: 1; }
.app-shell:not(.app-shell--public) > .sidebar { grid-area: sidebar; top: 72px; height: calc(100dvh - 72px); padding: 18px 12px 15px; }
.sidebar-panel { display: flex; flex-direction: column; min-height: 0; height: 100%; }
.sidebar-mobile-toggle { display: none; }
.sidebar .workspace-label { margin: 0 8px 15px; padding: 5px 0 13px; border-top: 0; }
.sidebar-new { width: 100%; }
.sidebar-heading { display: grid; gap: 3px; margin: 22px 9px 10px; }
.sidebar-heading strong { color: var(--color-on-surface); font-size: .86rem; }
.sidebar-heading span { color: var(--color-muted); font-size: .72rem; }
.project-list { display: grid; align-content: start; gap: 5px; min-height: 0; overflow-y: auto; padding: 2px 3px 12px; }
.project-group { min-width: 0; }
.project-title { display: flex; align-items: center; gap: 8px; min-height: 39px; padding: 7px 9px; border: 1px solid var(--color-line); border-radius: 10px; background: var(--color-nav-glass); cursor: pointer; list-style: none; font-size: .79rem; font-weight: 670; }
.project-title::-webkit-details-marker { display: none; }
.project-title:hover, .project-group[open] .project-title { border-color: var(--color-line-strong); background: var(--color-surface-glass-strong); }
.project-title > span:nth-child(2) { min-width: 0; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.project-glyph { display: grid; place-items: center; flex: none; width: 25px; height: 25px; border-radius: 7px; background: var(--color-accent-soft); color: var(--color-primary); }
.project-count { color: var(--color-muted); font-size: .69rem; }
.project-chats { display: grid; gap: 3px; margin: 4px 0 7px 19px; padding-left: 10px; border-left: 1px solid var(--color-line-strong); }
.project-chat { display: block; min-width: 0; min-height: 34px; padding: 8px 9px; border: 1px solid transparent; border-radius: 8px; color: var(--color-muted); text-decoration: none; font-size: .75rem; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.project-chat:hover, .project-chat[aria-current="page"] { border-color: var(--color-line-strong); background: var(--gradient-user); color: var(--color-primary-strong); }
.sidebar-empty { margin: 14px 9px; color: var(--color-muted); font-size: .8rem; line-height: 1.5; }
.sidebar .sidebar-bottom { padding: 12px 2px 0; }
.plan-card { display: grid; gap: 5px; padding: 14px; border: 1px solid var(--color-line-strong); border-radius: 14px; background: var(--gradient-panel); box-shadow: inset 0 1px 0 var(--color-glass-edge); }
.plan-card { color: var(--color-on-surface); text-decoration: none; transition: border-color var(--dur-toque) var(--ease-saida), transform var(--dur-toque) var(--ease-saida); }
.plan-card:hover { border-color: var(--color-secondary); transform: translateY(-1px); }
.plan-card .eyebrow { margin: 0; }
.plan-card strong { font-size: .92rem; }
.plan-card p { margin: 0; font-size: .78rem; }
.plan-card small { color: var(--color-muted); font-size: .69rem; line-height: 1.45; }
.plan-card p { font-size: 1.18rem; font-weight: 750; font-variant-numeric: tabular-nums; }
.usage-summary { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr)); gap: 12px; margin-bottom: 18px; }
.usage-metric { display: grid; gap: 8px; min-height: 112px; padding: 18px; }
.usage-metric span { color: var(--color-muted); font-size: .75rem; }
.usage-metric strong { font-size: 1.2rem; font-variant-numeric: tabular-nums; }
.usage-chart-card { padding: 21px; }
.usage-legend { display: flex; flex-wrap: wrap; gap: 13px; color: var(--color-muted); font-size: .76rem; }
.usage-legend span { display: inline-flex; align-items: center; gap: 5px; }
.usage-dot { width: 9px; height: 9px; border-radius: 3px; }
.usage-dot--openai, .usage-bar--openai { fill: var(--color-primary); background: var(--color-primary); }
.usage-dot--jev, .usage-bar--jev { fill: var(--color-secondary); background: var(--color-secondary); }
.usage-chart { display: block; width: 100%; height: auto; max-height: 280px; overflow: visible; }
.usage-chart--mobile { display: none; }
.usage-chart text { fill: var(--color-muted); font-size: 11px; }
.usage-axis { stroke: var(--color-line-strong); stroke-width: 1; }
.usage-table-wrap { max-width: 100%; overflow-x: auto; }
.usage-table { width: 100%; border-collapse: collapse; font-size: .78rem; font-variant-numeric: tabular-nums; }
.usage-table th, .usage-table td { padding: 9px 11px; border-bottom: var(--hairline); text-align: right; white-space: nowrap; }
.usage-table th:first-child, .usage-table td:first-child { text-align: left; }
.usage-table thead { color: var(--color-muted); }
.app-shell:not(.app-shell--public) > .main-content { grid-area: main; }
.chat-layout--home { grid-template-columns: minmax(0, 1fr); max-width: 960px; margin-inline: auto; }
.chat-layout--home .message-stream { min-height: 150px; }
.chat-layout--home .composer { position: relative; bottom: auto; }
.chat-layout--home .composer textarea { min-height: 74px; }
.chat-header--home { background: radial-gradient(circle at 90% 10%, var(--color-halo), transparent 35%), var(--gradient-panel-head); }
.chat-header [data-chat-kicker] { max-width: 55ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-empty--home { min-height: 150px; padding: 17px; }
.chat-empty--home img { width: 96px; height: 96px; margin-bottom: 8px; }
.chat-empty--home h2 { margin-bottom: 3px; font-size: 1rem; }
.chat-empty--home p { margin-bottom: 0; font-size: .8rem; }
.direction-panel { display: grid; gap: 5px; margin-bottom: 13px; padding: 14px; border: 1px solid var(--color-line-strong); border-radius: 12px; background: var(--color-accent-soft); }
.direction-panel[hidden] { display: none; }
.direction-panel strong { font-size: .83rem; }
.direction-panel p { margin: 0; color: var(--color-muted); font-size: .78rem; }
.direction-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 8px; }
.checklist-card { display: grid; gap: 10px; padding: 17px; border: 1px solid var(--color-line-strong); border-radius: 14px; background: var(--gradient-panel); }
.checklist-heading { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 9px; }
.checklist-heading .eyebrow { margin-bottom: 4px; }
.checklist-heading h3 { margin: 0; font-size: 1rem; }
.checklist-help { margin: 0; color: var(--color-muted); font-size: .78rem; line-height: 1.5; }
.checklist-items { display: grid; gap: 8px; margin: 4px 0; padding: 0; list-style: none; }
.checklist-items li { padding: 11px 12px; border: 1px solid var(--color-line); border-radius: 10px; background: var(--color-surface-glass); }
.checklist-items .checklist-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(180px, 32%); gap: 14px; align-items: start; }
.checklist-label { display: flex; align-items: flex-start; gap: 9px; font-size: .84rem; line-height: 1.5; cursor: pointer; }
.checklist-label input { flex: none; width: 17px; height: 17px; margin: 3px 0 0; accent-color: var(--color-primary); }
.checklist-label input:checked + span { color: var(--color-muted); text-decoration: line-through; }
.checklist-items .message-badges { justify-content: flex-end; margin: 0; }
.checklist-details { display: grid; gap: 5px; min-width: 0; }
.checklist-details-head { display: flex; align-items: center; justify-content: space-between; gap: 6px; min-height: 24px; }
.checklist-details-head label { color: var(--color-muted); font-size: .72rem; font-weight: 700; }
.checklist-details textarea { display: block; width: 100%; min-height: 62px; padding: 8px 9px; resize: vertical; border: 1px solid var(--color-line-strong); border-radius: 8px; background: var(--color-surface); color: var(--color-on-surface); font: inherit; font-size: .78rem; line-height: 1.4; }
.checklist-details textarea:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 1px; }
.checklist-details-status { min-height: 1em; color: var(--color-muted); font-size: .68rem; }
.checklist-footer { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 10px; }
.checklist-footer small { color: var(--color-muted); font-size: .72rem; }
.checklist-card [data-checklist-error][hidden] { display: none; }
.model-proposal { display: grid; gap: 8px; margin-top: 16px; padding: 15px; border: 1px solid var(--color-line-strong); border-radius: 12px; background: var(--gradient-panel); }
.model-proposal h3 { margin: 0; font-size: .95rem; }
.model-proposal p { margin: 0; color: var(--color-muted); font-size: .78rem; }
.model-review { display: grid; gap: 8px; min-width: 0; }
.model-review-actions { display: flex; flex-wrap: wrap; gap: 7px; }
.model-rejection-panel { display: grid; gap: 9px; width: min(100%, 520px); padding: 12px; border: 1px solid var(--color-line); border-radius: 10px; background: var(--color-surface-glass); }
.model-rejection-panel[hidden] { display: none; }
.model-rejection-panel label { display: grid; gap: 5px; font-size: .79rem; font-weight: 700; }
.model-rejection-panel textarea { width: 100%; min-height: 75px; padding: 9px; border: 1px solid var(--color-line-strong); border-radius: 8px; background: var(--color-surface); color: var(--color-on-surface); font: inherit; }
.model-rejection-panel strong { font-size: .76rem; }
.model-section { margin-bottom: 28px; }
.model-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 310px), 1fr)); gap: 13px; }
.model-card { display: grid; align-content: start; gap: 9px; padding: 19px; }
.model-card h3 { margin: 0; font-size: 1.05rem; }
.model-card p { margin: 0; color: var(--color-muted); font-size: .84rem; }
.model-card small { color: var(--color-muted); font-size: .73rem; }
.model-card .mini-tag { justify-self: start; }
.model-preview { min-height: 3.8em; }
.model-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 4px; }
.model-empty { max-width: 700px; padding: 25px; }
.model-import-name { display: grid; gap: 5px; }
.model-import-name label { font-size: .78rem; font-weight: 700; }
.model-import-name input { width: 100%; padding: 8px 10px; border: 1px solid var(--color-line-strong); border-radius: 8px; background: var(--color-surface); color: var(--color-on-surface); font: inherit; }
.attachment-picker { position: relative; flex: none; }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.attachment-add { display: grid; place-items: center; width: 35px; height: 35px; padding: 0; border: 1px solid var(--color-line-strong); border-radius: 11px; background: var(--color-surface-glass); color: var(--color-on-surface); font: inherit; font-size: 1.45rem; line-height: 1; cursor: pointer; }
.attachment-add:hover, .attachment-add[aria-expanded="true"] { border-color: var(--color-primary); background: var(--color-accent-soft); color: var(--color-primary-strong); }
.attachment-menu { position: absolute; z-index: 30; bottom: calc(100% + 8px); left: 0; display: grid; gap: 3px; width: min(244px, calc(100vw - 35px)); padding: 5px; border: 1px solid var(--color-line-strong); border-radius: 12px; background: var(--color-surface); box-shadow: var(--shadow-panel); }
.attachment-menu[hidden] { display: none; }
.attachment-menu button { display: grid; gap: 2px; width: 100%; padding: 10px; border: 0; border-radius: 8px; background: transparent; color: var(--color-on-surface); font: inherit; font-size: .8rem; font-weight: 700; text-align: left; cursor: pointer; }
.attachment-menu button:hover, .attachment-menu button:focus-visible { background: var(--color-accent-soft); }
.attachment-menu small { color: var(--color-muted); font-size: .68rem; font-weight: 400; }
.attached-model { display: inline-flex; align-items: center; gap: 7px; min-width: 0; max-width: min(250px, 45vw); padding: 5px 7px 5px 9px; border: 1px solid var(--color-line-strong); border-radius: 8px; background: var(--color-surface-glass); color: var(--color-on-surface); font-size: .72rem; }
.attached-model[hidden] { display: none; }
.attached-model span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.attached-model button { flex: none; width: 18px; height: 18px; padding: 0; border: 0; border-radius: 5px; background: transparent; color: var(--color-muted); font-size: 1rem; cursor: pointer; }
.model-picker-dialog { width: min(440px, calc(100vw - 26px)); padding: 22px; border: 1px solid var(--color-line-strong); border-radius: 16px; background: var(--color-surface); color: var(--color-on-surface); box-shadow: var(--shadow-panel); }
.model-picker-dialog::backdrop { background: rgb(8 20 37 / .6); backdrop-filter: blur(4px); }
.model-picker-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.model-picker-heading h2 { margin: 0; font-size: 1.08rem; }
.model-picker-dialog p { margin: 9px 0 18px; color: var(--color-muted); font-size: .8rem; line-height: 1.5; }
.model-picker-dialog label { display: block; margin-bottom: 7px; font-size: .76rem; font-weight: 700; }
.model-picker-dialog select { width: 100%; min-height: 42px; padding: 8px 10px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--color-surface-glass); color: var(--color-on-surface); font: inherit; }
.model-picker-close { width: 29px; height: 29px; border: 0; border-radius: 8px; background: var(--color-surface-glass); color: var(--color-on-surface); font-size: 1.2rem; cursor: pointer; }
.model-picker-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 19px; }
.standards-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 15px; }
.standard-card { padding: 22px; }
.standard-card h2 { margin-bottom: 8px; font-size: 1.1rem; }
.standard-card p { font-size: .83rem; }
.standard-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.standard-actions form { display: grid; justify-items: start; gap: 10px; }
.source-review-confirm { display: flex; align-items: flex-start; gap: 8px; color: var(--color-on-surface); font-size: .78rem; line-height: 1.45; }
.source-review-confirm input { flex: none; margin-top: 3px; accent-color: var(--color-primary); }
@media (max-width: 800px) {
  .app-shell:not(.app-shell--public) { grid-template-areas: "topbar" "sidebar" "main"; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto minmax(0, 1fr); }
  .app-shell:not(.app-shell--public) > .app-topbar { position: relative; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 9px; padding: 10px var(--respiro-x); }
  .app-topbar .brand { padding: 0; }
  .topbar-actions { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; }
  .app-topbar .account-menu { position: static; grid-column: 2; grid-row: 1; }
  .app-topbar .account-menu-panel { top: calc(100% + 6px); right: 12px; }
  .app-shell:not(.app-shell--public) > .sidebar { position: relative; top: auto; height: auto; padding: 8px var(--respiro-x); }
  .sidebar-mobile-toggle { display: flex; width: 100%; justify-content: flex-start; }
  .sidebar-panel { display: none; height: auto; max-height: 65dvh; padding-top: 12px; }
  .sidebar--open .sidebar-panel { display: flex; }
  .sidebar .workspace-label, .sidebar .sidebar-bottom { display: grid; }
  .project-list { max-height: 38dvh; }
  .app-shell:not(.app-shell--public) > .main-content { padding-top: 18px; }
}
@media (max-width: 560px) {
  .checklist-items .checklist-row { grid-template-columns: minmax(0, 1fr); }
  .checklist-details { padding-left: 26px; }
  .topbar-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .topbar-actions .button { min-width: 0; }
  .chat-header--home { padding: 22px; }
  .chat-layout--home .message-stream { min-height: 0; padding: 0; }
  .chat-layout--home .chat-empty--home { display: block; padding: 12px; }
  .chat-layout--home .chat-empty--home img { width: 76px; height: 76px; margin-bottom: 6px; }
  .chat-layout--home .chat-empty--home p { font-size: .72rem; }
  .direction-actions .button { flex: 1; }
}
@media (max-height: 700px) and (min-width: 561px) {
  .chat-layout--home .message-stream { min-height: 0; padding: 0; }
  .chat-layout--home .chat-empty--home { display: block; padding: 8px; }
  .chat-layout--home .chat-empty--home img { width: 70px; height: 70px; margin-bottom: 4px; }
}

/* The conversation owns the available viewport; only its messages scroll. */
.app-shell:not(.app-shell--public).app-shell--chat { height: 100dvh; min-height: 0; grid-template-rows: 60px minmax(0, 1fr); }
.app-shell--chat > .app-topbar { min-height: 60px !important; padding-block: 6px !important; }
.app-shell--chat > .sidebar { top: 60px !important; height: calc(100dvh - 60px) !important; padding-top: 10px !important; }
.app-shell--chat > .main-content--chat { display: flex; flex-direction: column; height: 100%; min-height: 0; padding: 10px clamp(.65rem, 1.5vw, 1.25rem) 10px; }
.chat-layout:not(.chat-layout--home) { grid-template-columns: minmax(0, 1fr) minmax(192px, 214px); }
.chat-layout { flex: 1; min-height: 0; height: 100%; gap: 12px; align-items: stretch; }
.chat-main { position: relative; display: flex; flex-direction: column; min-height: 0; }
.chat-header { position: relative; z-index: 4; align-items: center; gap: 12px; padding: 12px 17px; }
.chat-header-copy { min-width: 0; }
.chat-header .eyebrow { margin-bottom: 3px; font-size: .62rem; }
.chat-header h1 { max-width: none; margin: 0; font-size: clamp(1.05rem, 1.5vw, 1.4rem); line-height: 1.22; overflow-wrap: anywhere; }
.chat-header p:last-child { margin: 3px 0 0; font-size: .76rem; }
.chat-header-actions { display: flex; align-items: center; justify-content: flex-end; flex: none; flex-wrap: wrap; gap: 5px; }
.chat-header-actions[hidden] { display: none; }
.chat-header-actions .button { min-height: 32px; padding: 5px 9px; font-size: .72rem; }
.chat-sources { position: relative; }
.chat-sources summary { list-style: none; cursor: pointer; }
.chat-sources summary::-webkit-details-marker { display: none; }
.chat-sources-panel { position: absolute; top: calc(100% + 9px); right: 0; display: grid; gap: 7px; width: min(320px, calc(100vw - 24px)); max-height: 55dvh; overflow-y: auto; padding: 12px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-base); background: var(--color-surface); box-shadow: var(--shadow-panel); }
.chat-sources-panel p { display: grid; gap: 3px; margin: 0 0 4px; padding-bottom: 8px; border-bottom: var(--hairline); font-size: .76rem; }
.chat-sources-panel p span { color: var(--color-muted); overflow-wrap: anywhere; }
.chat-sources-panel .source-row { padding: 8px 9px; }
.app-shell--chat .message-stream { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; padding: 0 20px 16px; scrollbar-width: thin; scrollbar-color: var(--color-line-strong) transparent; }
.jump-latest { position: absolute; right: 29px; bottom: calc(var(--composer-height, 104px) + 12px); z-index: 6; display: grid; place-items: center; width: 37px; height: 37px; padding: 0; border: 1px solid var(--color-line-strong); border-radius: 50%; background: var(--color-surface); color: var(--color-primary-strong); box-shadow: var(--shadow-panel); cursor: pointer; }
.jump-latest:hover, .jump-latest:focus-visible { border-color: var(--color-primary); background: var(--gradient-user); }
.jump-latest[hidden] { display: none; }
.app-shell--chat .message { padding: 17px 0; scroll-margin-top: 12px; }
.app-shell--chat .message-text { line-height: 1.62; }
.app-shell--chat .message:focus { outline: none; }
.app-shell--chat .message:target .message-body, .app-shell--chat .message:focus .message-body { border-radius: 10px; box-shadow: inset 3px 0 0 var(--color-primary); }
.app-shell--chat .composer { position: relative; bottom: auto; flex: none; gap: 5px; padding: 9px 17px 11px; }
.app-shell--chat .composer > label[for] { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.app-shell--chat .composer textarea { min-height: 96px; max-height: max(96px, min(30dvh, 220px)); padding: 10px 12px; resize: vertical; }
.app-shell--chat .composer-bottom { gap: 7px; }
.app-shell--chat .upload-control { min-height: 34px; padding: 6px 11px; font-size: .76rem; }
.app-shell--chat .composer-bottom > span:empty { display: none; }
.app-shell--chat .composer-bottom > span { min-width: 0; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.app-shell--chat .composer-bottom > .attached-model { flex: 0 1 auto; color: var(--color-on-surface); }
.chat-layout--home { grid-template-columns: minmax(0, 1fr); width: min(100%, 1120px); max-width: none; margin-inline: auto; }
.chat-layout--home .message-stream { display: flex; align-items: center; justify-content: center; min-height: 0; }
.chat-layout--home .composer { position: relative; }
.chat-layout--home .chat-empty--home { min-height: 0; height: auto; width: min(100%, 530px); padding: 25px; text-align: center; }
.chat-layout--home .chat-empty--home img { display: block; width: 116px; height: 116px; object-fit: contain; margin: 0 auto 12px; filter: drop-shadow(0 9px 22px var(--color-halo)); }
.chat-layout--home .chat-empty--home h2 { font-size: 1.18rem; }
.chat-layout--home .chat-empty--home p { font-size: .84rem; line-height: 1.5; }
.chat-timeline { display: flex; flex-direction: column; min-width: 0; min-height: 0; padding: 14px 11px 10px; border: 1px solid var(--color-glass-edge); border-radius: var(--radius-large); background: var(--gradient-panel); box-shadow: var(--shadow-panel); }
.chat-timeline[hidden] { display: none; }
.timeline-toggle, .timeline-close { display: none !important; }
.timeline-toggle[hidden], .timeline-backdrop[hidden] { display: none !important; }
.timeline-backdrop { position: fixed; inset: 0; z-index: 43; border: 0; background: rgb(11 24 43 / .48); backdrop-filter: blur(3px); cursor: pointer; }
.timeline-heading { display: grid; gap: 2px; padding: 0 7px 12px; border-bottom: var(--hairline); }
.timeline-heading .eyebrow { margin: 0; font-size: .59rem; }
.timeline-heading strong { font-size: .85rem; }
.timeline-heading small { color: var(--color-muted); font-size: .68rem; }
.timeline-list { display: grid; align-content: start; flex: 1 1 auto; min-height: 0; overflow-y: auto; padding: 8px 1px 14px; scrollbar-width: thin; scrollbar-color: var(--color-line-strong) transparent; }
.timeline-entry { position: relative; display: grid; grid-template-columns: 14px minmax(0, 1fr); gap: 7px; min-height: 61px; padding: 7px 4px; border: 1px solid transparent; border-radius: 9px; color: var(--color-on-surface); text-decoration: none; }
.timeline-entry::before { content: ""; position: absolute; top: 0; bottom: 0; left: 10px; width: 1px; background: var(--color-line-strong); }
.timeline-entry:first-of-type::before { top: 14px; }
.timeline-entry:last-of-type::before { bottom: 45px; }
.timeline-entry:hover, .timeline-entry:focus-visible, .timeline-entry[aria-current="location"] { border-color: var(--color-line); background: var(--gradient-user); color: var(--color-primary-strong); }
.timeline-marker { position: relative; z-index: 1; align-self: start; width: 8px; height: 8px; margin: 5px 0 0 2px; border: 2px solid var(--color-primary); border-radius: 50%; background: var(--color-surface); }
.timeline-entry[aria-current="location"] .timeline-marker { background: var(--color-primary); box-shadow: 0 0 0 4px var(--color-halo); }
.timeline-entry-copy { display: grid; align-content: start; gap: 3px; min-width: 0; }
.timeline-entry time { color: var(--color-muted); font-size: .66rem; font-variant-numeric: tabular-nums; }
.timeline-entry strong { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: .72rem; font-weight: 640; line-height: 1.3; overflow-wrap: anywhere; }
.timeline-empty { margin: 14px 7px; color: var(--color-muted); font-size: .74rem; }
.validation-card { display: grid; grid-template-rows: auto minmax(0, 1fr) auto; gap: 9px; flex: 0 1 auto; min-width: 0; min-height: 0; max-height: min(48%, 350px); margin-top: auto; padding: 12px 10px 3px; border-top: var(--hairline); }
.validation-card-heading { display: flex; align-items: center; justify-content: space-between; gap: 8px; font-size: .77rem; }
.validation-card-heading span { display: grid; place-items: center; min-width: 22px; height: 22px; border-radius: 999px; background: rgb(230 155 45 / .15); color: var(--color-warning); font-size: .68rem; font-weight: 700; }
.validation-card-body { min-width: 0; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }
.validation-card-body:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 2px; }
.validation-card-list { display: grid; gap: 4px; }
.validation-automatic { min-width: 0; margin-top: 9px; font-size: .72rem; overflow-wrap: anywhere; }
.validation-automatic summary { cursor: pointer; font-weight: 630; }
.validation-automatic .source-note { min-width: 0; margin-top: 8px; padding: 7px; font-size: .72rem; }
.validation-card .button { min-width: 0; max-width: 100%; white-space: normal; overflow-wrap: anywhere; font-size: .68rem; }
.validation-card-item { display: grid; gap: 2px; padding: 7px 8px; border: 1px solid var(--color-line); border-radius: 8px; color: var(--color-on-surface); text-decoration: none; }
.validation-card-item:hover, .validation-card-item:focus-visible { border-color: var(--color-primary); background: var(--gradient-user); }
.validation-card-item small { color: var(--color-muted); font-size: .62rem; }
.validation-card-item span { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; font-size: .72rem; font-weight: 630; overflow-wrap: anywhere; }
.validation-card p { margin: 0; color: var(--color-muted); font-size: .7rem; line-height: 1.4; }
.reference-tabs { display: flex; flex-wrap: wrap; gap: 7px; margin: 0 0 15px; }
.validation-row { align-items: flex-start; }
.validation-row .eyebrow { font-size: .68rem; letter-spacing: .09em; }
.validation-actions { display: flex; align-items: center; align-content: flex-start; justify-content: flex-end; flex-wrap: wrap; gap: 6px; flex: 0 1 330px; }
.validation-actions form { margin: 0; }
@media (max-width: 800px) {
  .validation-actions { flex: none; width: 100%; justify-content: flex-start; }
}
.timeline-tooltip { position: fixed; z-index: 60; display: grid; gap: 7px; width: min(290px, calc(100vw - 24px)); padding: 12px; border: 1px solid var(--color-line-strong); border-radius: 11px; background: var(--color-surface); box-shadow: var(--shadow-panel); color: var(--color-on-surface); font-size: .75rem; line-height: 1.42; pointer-events: none; }
.timeline-tooltip[hidden] { display: none; }
.timeline-tooltip strong { display: block; margin-bottom: 2px; color: var(--color-primary-strong); font-size: .69rem; }
.timeline-tooltip span { display: block; overflow-wrap: anywhere; }
.source-alert { color: var(--color-warning) !important; }
.project-group { position: relative; }
.project-title { padding-right: 62px; }
.sidebar-rename-project { position: absolute; top: 6px; right: 5px; z-index: 1; min-height: 27px; padding: 4px 6px; border-radius: 7px; font-size: .65rem; opacity: 0; }
.project-group:hover > .sidebar-rename-project, .project-group:focus-within > .sidebar-rename-project { opacity: 1; }
.project-chat-row { display: flex; align-items: center; min-width: 0; }
.project-chat-row .project-chat { flex: 1; }
.sidebar-rename-chat { flex: none; min-height: 27px; padding: 4px 6px; border-radius: 7px; font-size: .63rem; opacity: 0; }
.project-chat-row:hover .sidebar-rename-chat, .project-chat-row:focus-within .sidebar-rename-chat { opacity: 1; }
.rename-dialog { width: min(390px, calc(100vw - 24px)); padding: 23px; border: 1px solid var(--color-line-strong); border-radius: var(--radius-large); background: var(--color-surface); color: var(--color-on-surface); box-shadow: var(--shadow-panel); }
.rename-dialog::backdrop { background: rgb(8 20 37 / .55); backdrop-filter: blur(3px); }
.rename-dialog form { display: grid; gap: 10px; }
.rename-dialog h2 { margin: 0 0 5px; font-size: 1.16rem; }
.rename-dialog label { font-size: .78rem; font-weight: 680; }
.rename-dialog input[type="text"] { width: 100%; min-height: 42px; padding: 8px 10px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--color-bg); color: var(--color-on-surface); font: inherit; }
.rename-actions { display: flex; justify-content: flex-end; gap: 7px; margin-top: 10px; }

@media (max-width: 1050px) {
  .chat-layout:not(.chat-layout--home) { grid-template-columns: minmax(0, 1fr); }
  .chat-timeline { display: none; }
  .timeline-toggle, .timeline-close { display: inline-flex !important; }
  .chat-timeline.chat-timeline--open { position: fixed; top: 0; right: 0; bottom: 0; z-index: 44; display: flex; width: min(340px, calc(100vw - 24px)); max-height: 100dvh; padding: max(18px, env(safe-area-inset-top)) 14px max(16px, env(safe-area-inset-bottom)); border-radius: 17px 0 0 17px; background: var(--color-surface); box-shadow: -16px 0 50px rgb(10 25 45 / .22); }
  .chat-timeline--open .timeline-heading { padding-right: 36px; }
  .chat-timeline--open .timeline-list { flex: 1; }
  .timeline-close { position: absolute; top: max(13px, env(safe-area-inset-top)); right: 13px; align-items: center; justify-content: center; width: 31px; height: 31px; border: 1px solid var(--color-line); border-radius: 8px; background: var(--color-surface); color: var(--color-on-surface); font-size: 1.25rem; cursor: pointer; }
}
@media (max-width: 800px) {
  .app-shell:not(.app-shell--public).app-shell--chat { grid-template-rows: auto auto minmax(0, 1fr); }
  .app-shell--chat > .app-topbar { gap: 9px; padding-block: 9px !important; }
  .app-shell--chat > .sidebar { top: auto !important; height: auto !important; padding-block: 7px !important; }
  .app-shell--chat > .main-content--chat { padding: 4px 8px 8px !important; }
  .sidebar-rename-project, .sidebar-rename-chat { opacity: 1; }
}
@media (max-width: 560px) {
  .app-shell--chat > .app-topbar { padding: 10px 14px !important; }
  .app-shell--chat > .sidebar { padding: 7px 12px 9px !important; }
  .app-shell--chat .app-topbar .brand img { width: 32px; height: 35px; }
  .app-shell--chat .app-topbar .brand small { display: none; }
  .app-shell--chat .topbar-actions { display: flex; overflow-x: auto; gap: 6px; }
  .app-shell--chat .topbar-actions .button { min-height: 30px; padding: 5px 9px; font-size: .7rem; }
  .app-shell--chat .sidebar-mobile-toggle { min-height: 34px; padding: 6px 10px; font-size: .74rem; }
  .app-shell--chat > .main-content--chat { padding: 4px 0 0 !important; }
  .app-shell--chat .chat-main { border-radius: 0; border-inline: 0; }
  .app-shell--chat .chat-header { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; padding: 8px 11px; }
  .app-shell--chat .chat-header .eyebrow { display: none; }
  .app-shell--chat .chat-header h1 { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: 1.06rem; }
  .app-shell--chat .chat-header-actions { justify-content: flex-start; gap: 3px; }
  .app-shell--chat .chat-header-actions .button { min-height: 27px; padding: 3px 6px; font-size: .67rem; }
  .app-shell--chat .message-stream { min-height: 0; padding: 0 12px 12px; }
  .jump-latest { right: 15px; width: 35px; height: 35px; }
  .chat-layout--home .chat-empty--home { padding: 8px; }
  .chat-layout--home .chat-empty--home img { width: 76px; height: 76px; margin-bottom: 6px; }
  .chat-layout--home .chat-empty--home h2 { font-size: 1rem; }
  .chat-layout--home .chat-empty--home p { font-size: .72rem; }
  .app-shell--chat .message { padding: 14px 0; }
  .app-shell--chat .composer { position: relative; padding: 8px 11px max(8px, env(safe-area-inset-bottom)); }
  .app-shell--chat .composer-bottom > span { order: initial; width: auto; }
  .chat-layout--model-import .chat-empty--home { display: grid; }
  .chat-layout--model-import .chat-empty--home img { width: 66px; height: 66px; margin-bottom: 4px; }
  .chat-layout--model-import .chat-empty--home p { max-width: 28ch; }
  .usage-chart--desktop { display: none; }
  .usage-chart--mobile { display: block; }
}
@media (max-height: 700px) and (min-width: 561px) {
  .chat-layout--model-import .chat-empty--home { display: grid; }
  .chat-layout--model-import .chat-empty--home img { width: 62px; height: 62px; margin-bottom: 4px; }
}

/* Mobile navigation keeps the conversation visible until the menu is requested. */
.topbar-menu-toggle, .sidebar-drawer-heading, .drawer-app-nav { display: none; }
.sidebar-backdrop[hidden] { display: none; }
.chat-header-actions-inline { display: flex; align-items: center; gap: 5px; }
.chat-mobile-options { display: none; }
html[data-theme="dark"] .drawer-app-link--sources, html[data-theme="dark"] .chat-mobile-options-panel .chat-sources > summary { color: color-mix(in srgb, var(--color-action-explore) 46%, white); }

@media (max-width: 800px) {
  .app-shell:not(.app-shell--public), .app-shell:not(.app-shell--public).app-shell--chat { grid-template-areas: "topbar" "main"; grid-template-columns: minmax(0, 1fr); grid-template-rows: auto minmax(0, 1fr); }
  .app-shell:not(.app-shell--public) > .app-topbar { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 9px; min-height: 60px; padding: 8px 12px; }
  .app-topbar .brand { grid-column: 1; grid-row: 1; min-width: 0; }
  .app-topbar .brand span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .app-topbar .account-menu { grid-column: 2; grid-row: 1; }
  .topbar-actions { display: none !important; }
  .topbar-menu-toggle { display: inline-flex; align-items: center; gap: var(--space-2); grid-column: 3; grid-row: 1; min-height: 44px; padding: 8px 12px; font-size: var(--ui-small); }
  .topbar-menu-toggle[aria-expanded="true"] { background: var(--color-primary); color: var(--color-on-brand); }
  .app-shell:not(.app-shell--public) > .sidebar, .app-shell--chat > .sidebar { position: fixed; top: 0 !important; left: 0; z-index: 61; width: min(340px, calc(100vw - 34px)); height: 100dvh !important; max-height: 100dvh; padding: max(12px, env(safe-area-inset-top)) 13px max(12px, env(safe-area-inset-bottom)) !important; overflow: hidden; background: var(--color-surface); box-shadow: var(--shadow-panel); transform: translateX(-105%); visibility: hidden; transition: transform .2s ease, visibility .2s ease; }
  .app-shell:not(.app-shell--public) > .sidebar.sidebar--open { transform: translateX(0); visibility: visible; }
  .sidebar-backdrop { position: fixed; inset: 0; z-index: 60; background: rgb(8 20 37 / .56); backdrop-filter: blur(3px); }
  .sidebar-drawer-heading { display: flex; align-items: center; justify-content: space-between; flex: none; padding: 3px 5px 10px; border-bottom: var(--hairline); font-size: .88rem; }
  .sidebar-drawer-heading button { width: 35px; height: 35px; border: 1px solid var(--color-line-strong); border-radius: 9px; background: var(--color-surface-glass); color: var(--color-on-surface); font-size: 1.35rem; cursor: pointer; }
  .sidebar-panel { display: flex; flex: 1; min-height: 0; height: auto; max-height: none; padding-top: 9px; }
  .sidebar .workspace-label { display: grid; margin-bottom: 10px; }
  .drawer-app-nav { display: grid; gap: 5px; margin-bottom: 11px; }
  .drawer-app-link { display: flex; align-items: center; gap: 10px; min-height: 39px; padding: 7px 10px; border: 1px solid var(--color-line); border-radius: 9px; color: var(--color-on-surface); text-decoration: none; font-size: .79rem; font-weight: 700; }
  .drawer-app-link span { display: grid; place-items: center; width: 24px; height: 24px; border-radius: 7px; font-size: .95rem; }
  .drawer-app-link--chat { border-color: var(--color-primary); color: var(--color-primary-strong); background: var(--color-accent-soft); }
  .drawer-app-link--chat span { background: var(--color-primary); color: var(--color-on-brand); }
  .drawer-app-link--models { border-color: var(--color-success); color: var(--color-success); background: var(--color-success-soft); }
  .drawer-app-link--models span { background: var(--color-action-success); color: #fff; }
  .drawer-app-link--sources { border-color: var(--color-action-explore); color: var(--color-action-explore); background: color-mix(in srgb, var(--color-action-explore) 11%, var(--color-surface)); }
  .drawer-app-link--sources span { background: var(--color-action-explore); color: #fff; }
  .drawer-app-link:hover, .drawer-app-link:focus-visible { filter: brightness(1.08); }
  .sidebar-heading { margin-top: 14px; }
  .project-list { flex: 1; max-height: none; }
  .sidebar .sidebar-bottom { display: grid; flex: none; }
  .app-shell--chat > .main-content--chat { padding-top: 4px !important; }
  .chat-header-actions { width: 100%; justify-content: space-between; }
  .chat-header-actions-inline { display: none; }
  .chat-mobile-options { position: relative; display: block; }
  .chat-mobile-options > summary { list-style: none; cursor: pointer; border-color: var(--color-primary); color: var(--color-primary-strong); background: var(--color-accent-soft); }
  .chat-mobile-options > summary::-webkit-details-marker { display: none; }
  .chat-mobile-options[open] > summary { background: var(--color-primary); color: var(--color-on-brand); }
  .chat-mobile-options-panel { position: absolute; top: calc(100% + 7px); left: 0; z-index: 10; display: grid; gap: 6px; width: min(300px, calc(100vw - 30px)); max-height: 65dvh; overflow-y: auto; padding: 8px; border: 1px solid var(--color-line-strong); border-radius: 12px; background: var(--color-surface); box-shadow: var(--shadow-panel); }
  .chat-mobile-options-panel > .button, .chat-mobile-options-panel .chat-sources > summary { display: flex; width: 100%; justify-content: flex-start; min-height: 36px; }
  .chat-mobile-options-panel .chat-sources > summary { border-color: var(--color-action-explore); color: var(--color-action-explore); background: color-mix(in srgb, var(--color-action-explore) 11%, var(--color-surface)); }
  .chat-mobile-options-panel .chat-sources-panel { position: static; width: 100%; max-height: 36dvh; margin-top: 5px; box-shadow: none; }
  .chat-header-actions .timeline-toggle { margin-left: auto; }
}
@media (max-width: 560px) {
  .app-shell--chat > .app-topbar { padding: 8px 11px !important; }
  .app-shell--chat > .sidebar { padding: max(12px, env(safe-area-inset-top)) 13px max(12px, env(safe-area-inset-bottom)) !important; }
  .app-shell--chat .chat-header-actions { justify-content: space-between; gap: 8px; }
  .app-shell--chat .chat-header-actions .button { min-height: 32px; padding: 5px 9px; font-size: .72rem; }
  .app-shell--chat .chat-header-actions .timeline-toggle { background: var(--gradient-action-explore); border-color: var(--color-action-explore); color: #fff; }
}

/* Shared application density. Typography, controls and panels use one scale. */
.main-content { padding-block: 18px 28px; }
.page-header { align-items: center; gap: 14px; margin-bottom: var(--ui-section-gap); }
.page-header > div { min-width: 0; }
.page-header h1 { margin-bottom: 5px; font-size: var(--ui-title); overflow-wrap: anywhere; }
.page-header p:last-child { font-size: var(--ui-font); max-width: 90ch; }
.button { min-height: var(--ui-control); padding: 7px 12px; font-size: var(--ui-font); border-radius: 8px; }
.button--small { min-height: 34px; padding: 7px 11px; font-size: var(--ui-small); }
.section-heading { margin-bottom: 12px; gap: 10px; }
.section-heading h2 { font-size: var(--ui-subtitle); }
.form-surface, .reading-surface, .model-card, .standard-card, .model-empty, .context-card, .dashboard-grid > .surface, .history-panel, .usage-chart-card { padding: var(--ui-panel-padding); }
.stack-form { gap: 18px; }
.stack-form > div { gap: 8px; }
.stack-form input:not([type="checkbox"]):not([type="radio"]), .stack-form select { min-height: var(--ui-control); padding: 7px 10px; }
.stack-form input[type="radio"], .stack-form input[type="checkbox"] { width: auto; min-height: auto; }
.form-actions { flex-wrap: wrap; gap: 10px !important; padding-top: 4px; }
.message-actions, .message-badges, .validation-actions { gap: 10px; }
.list-surface { padding: 0 var(--ui-panel-padding); }
.task-row { gap: 18px; padding: 18px 0; }
.task-row h2, .model-card h3, .standard-card h2, .reading-surface h2 { font-size: var(--ui-subtitle); }
.task-row p, .model-card p, .standard-card p { font-size: var(--ui-font); margin-bottom: 6px; }
.model-section { margin-bottom: var(--ui-section-gap); }
.empty-state { padding: var(--ui-panel-padding); }
.usage-metric { padding: var(--ui-panel-padding); min-height: 88px; gap: 5px; }
.usage-metric strong { font-size: 1.0625rem; }
.usage-summary { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.usage-metric:first-child strong { font-size: var(--ui-font); overflow-wrap: anywhere; }
.usage-chart { max-height: 220px; }
.usage-table th, .usage-table td { padding: 11px 12px; }
.app-shell:not(.app-shell--public) > .app-topbar { min-height: var(--topbar-height); padding-block: 6px; }
.app-shell:not(.app-shell--public) > .sidebar { top: var(--topbar-height); height: calc(100dvh - var(--topbar-height)); padding: 16px 12px; }
.sidebar .workspace-label { margin: 0 6px 10px; padding: 0 0 8px; }
.sidebar .workspace-label strong { font-size: var(--ui-small); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.sidebar .workspace-label span { font-size: .5625rem; }
.sidebar .sidebar-bottom { padding: 10px 0 0; }
.app-shell--chat .chat-header { padding: 16px 20px; }
.app-shell--chat .chat-header h1 { font-size: var(--ui-title); }
.app-shell--chat .chat-header-copy { flex: 1; }
.app-shell--chat .chat-header h1[data-chat-heading] { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.app-shell--chat .message { padding-block: 20px; }
.app-shell--chat .message-text { font-size: .875rem; line-height: 1.65; }
.message-meta { margin-bottom: 7px; }
.message--assistant .message-body { padding-left: 12px; border-left: 3px solid transparent; }
.app-shell--chat .message:target .message-body, .app-shell--chat .message:focus .message-body { box-shadow: none; border-radius: 0; }
.app-shell--chat .message--assistant:target .message-body, .app-shell--chat .message--assistant:focus .message-body { border-left-color: var(--color-primary); }
.app-shell--chat .message--user:target .message-body, .app-shell--chat .message--user:focus .message-body { outline: 2px solid var(--color-primary); outline-offset: 3px; }
.message-text--formatted { white-space: normal; }
.message-text--formatted > :first-child { margin-top: 0; }
.message-text--formatted > :last-child { margin-bottom: 0; }
.message-text--formatted p { margin: 0 0 .65em; }
.message-text--formatted h1, .message-text--formatted h2, .message-text--formatted h3, .message-text--formatted h4 { margin: 1em 0 .5em; line-height: 1.4; font-size: 1em; letter-spacing: 0; }
.message-text--formatted h1 { font-size: 1.15em; }
.message-text--formatted h2 { font-size: 1.08em; }
.message-text--formatted ul, .message-text--formatted ol { margin: .5em 0 .8em; padding-left: 1.6em; }
.message-text--formatted li { margin-block: .25em; }
.message-text--formatted li > p { margin-bottom: .3em; }
.message-text--formatted blockquote { margin: .8em 0; padding: .3em .9em; border-left: 3px solid var(--color-line-strong); color: var(--color-muted); }
.message-text--formatted pre { max-width: 100%; overflow: auto; padding: 12px; border: var(--hairline); border-radius: 8px; background: var(--color-bg-alt); white-space: pre; font-size: .85em; }
.message-text--formatted code { padding: .1em .3em; border-radius: 4px; background: var(--color-bg-alt); font-size: .9em; }
.message-text--formatted pre code { padding: 0; }
.message-text--formatted hr { border: 0; border-top: var(--hairline); margin-block: 1em; }
.message-table-scroll { max-width: 100%; overflow-x: auto; margin-block: .75em; border: var(--hairline); border-radius: 8px; }
.message-text--formatted table { border-collapse: collapse; min-width: 100%; font-size: .92em; }
.message-text--formatted th, .message-text--formatted td { padding: 7px 10px; text-align: left; border-bottom: var(--hairline); min-width: 100px; }
.message-text--formatted td, .message-text--formatted th { overflow-wrap: normal; word-break: normal; }
.message-text--formatted th { background: var(--color-bg-alt); }
.message-text--formatted tr:last-child td { border-bottom: 0; }
.auth-intro { padding: clamp(24px, 5vw, 64px); }
.auth-intro h1 { max-width: 24ch; font-size: var(--ui-title); }
.auth-intro p:last-child { font-size: .9375rem; }
.auth-panel { padding: clamp(20px, 3vw, 40px); }
.auth-panel h2 { margin-bottom: var(--ui-section-gap); font-size: var(--ui-title); }
@media (max-width: 800px) {
  :root { --ui-control: 44px; --ui-panel-padding: 18px; --ui-section-gap: 22px; }
  .button--small { min-height: 40px; }
  .main-content { padding-block: 18px 28px; }
  .app-topbar .brand small { display: none; }
  .usage-summary { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .app-shell--chat .chat-header { padding: 14px 16px; }
  .app-shell--chat .chat-header h1 { font-size: 1.125rem; }
  .app-shell--chat .message-text { font-size: .9375rem; }
  .message--assistant .message-body { padding-left: 8px; }
}

.source-audit-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 24px; }
.source-control > .surface { margin-bottom: var(--ui-section-gap); }
.source-audit-grid dt { font-weight: 600; }
.source-audit-grid dd { margin: 4px 0 0; overflow-wrap: anywhere; }
.source-url { overflow-wrap: anywhere; }
.source-audit-grid + .source-url { margin-top: 16px; }
.source-audit-json { white-space: pre-wrap; overflow-wrap: anywhere; max-height: 360px; overflow: auto; font-size: .8125rem; }
@media (max-width: 720px) { .source-audit-grid { grid-template-columns: minmax(0, 1fr); } }