:root {
  color-scheme: light;
  --page: #f5f6f8;
  --surface: #ffffff;
  --surface-soft: #f8f9fb;
  --surface-raised: #ffffff;
  --sidebar: #fbfbfc;
  --line: #e7e9ed;
  --line-strong: #d8dce3;
  --ink: #20242d;
  --ink-soft: #49515e;
  --muted: #7e8795;
  --accent: #5c6ee8;
  --accent-hover: #4a5bd0;
  --accent-soft: #eef0ff;
  --green: #278765;
  --green-soft: #eaf6f0;
  --danger: #b34c56;
  --danger-soft: #fff0f0;
  --shadow: 0 14px 40px rgb(28 35 54 / 10%);
  --radius: 13px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --page: #14171d;
  --surface: #1b1f27;
  --surface-soft: #20252e;
  --surface-raised: #242a34;
  --sidebar: #181b22;
  --line: #2c323d;
  --line-strong: #3b4350;
  --ink: #edf0f5;
  --ink-soft: #c4cad4;
  --muted: #9099a8;
  --accent: #9ba8ff;
  --accent-hover: #b3bcff;
  --accent-soft: #292d48;
  --green: #7cd1ad;
  --green-soft: #20382f;
  --danger: #ff9ba1;
  --danger-soft: #44282d;
  --shadow: 0 16px 48px rgb(0 0 0 / 32%);
}

* { box-sizing: border-box; }
html { min-width: 320px; min-height: 100%; background: var(--page); }
body { margin: 0; color: var(--ink); background: var(--page); font-size: 14px; line-height: 1.55; }
button, input, select, textarea { font: inherit; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: var(--accent); }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, summary:focus-visible, dialog:focus-visible, [role="dialog"]:focus-visible { outline: 3px solid color-mix(in srgb, var(--accent) 50%, transparent); outline-offset: 2px; }
button:disabled { cursor: not-allowed; opacity: .55; }
.sr-only, .skip-link:not(:focus) { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link:focus { position: fixed; z-index: 1000; top: 12px; left: 12px; padding: 10px 14px; color: var(--ink); background: var(--surface); border: 1px solid var(--line-strong); border-radius: 8px; box-shadow: var(--shadow); }
.hidden { display: none !important; }

.app-shell { display: grid; grid-template-columns: 258px minmax(0, 1fr); min-height: 100vh; }
.sidebar { position: sticky; top: 0; display: flex; flex-direction: column; height: 100vh; min-height: 660px; padding: 22px 15px 14px; overflow-y: auto; background: var(--sidebar); border-right: 1px solid var(--line); z-index: 20; }
.brand-lockup { display: flex; align-items: center; justify-content: space-between; padding: 0 9px 24px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font-size: 20px; font-weight: 720; letter-spacing: -.055em; }
.brand-mark { display: grid; width: 31px; height: 31px; place-items: center; color: white; background: linear-gradient(145deg, #7787f6, #5663d5); border-radius: 10px; font-size: 17px; font-weight: 700; letter-spacing: -.04em; box-shadow: 0 3px 8px rgb(82 99 210 / 22%); }
.workspace-picker { padding: 0 7px; }
.workspace-picker label, .model-label { display: block; margin: 0 0 6px; color: var(--muted); font-size: 11px; font-weight: 650; letter-spacing: .06em; text-transform: uppercase; }
.workspace-picker select { width: 100%; min-height: 39px; padding: 7px 10px; color: var(--ink); background-color: var(--surface); border: 1px solid var(--line); border-radius: 8px; }
.create-workspace { display: flex; gap: 6px; padding: 8px 7px 15px; }
.create-workspace input { min-width: 0; width: 100%; padding: 7px 9px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 7px; font-size: 12px; }
.quiet-button, .toolbar-button { padding: 7px 10px; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line); border-radius: 8px; cursor: pointer; font-size: 12px; font-weight: 570; white-space: nowrap; transition: border-color .16s ease, background .16s ease, color .16s ease; }
.quiet-button:hover, .toolbar-button:hover { color: var(--ink); background: var(--surface-soft); border-color: var(--line-strong); }
.side-navigation { display: grid; gap: 3px; }
.nav-group { padding: 2px 0 5px; }
.nav-group > summary { display: flex; align-items: center; justify-content: space-between; padding: 7px 9px; color: var(--muted); cursor: pointer; list-style: none; font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary::after { content: "⌄"; color: var(--muted); font-size: 14px; transition: transform .16s ease; }
.nav-group:not([open]) > summary::after { transform: rotate(-90deg); }
.nav-item { display: flex; align-items: center; gap: 11px; width: 100%; min-height: 35px; padding: 6px 10px; color: var(--ink-soft); background: transparent; border: 0; border-radius: 7px; text-align: left; cursor: pointer; font-size: 12px; transition: color .15s ease, background .15s ease; }
.nav-item > span { width: 15px; color: var(--muted); text-align: center; font-size: 15px; pointer-events: none; }
.nav-item:hover { color: var(--ink); background: var(--surface-soft); }
.nav-item.active { color: var(--accent); background: var(--accent-soft); font-weight: 640; }
.nav-item.active > span { color: var(--accent); }
.conversation-list { margin-top: 8px; padding: 12px 6px 6px; border-top: 1px solid var(--line); }
.section-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.section-heading h2 { margin: 0; color: var(--ink-soft); font-size: 11px; font-weight: 650; }
.small-icon-button, .icon-button { display: inline-grid; flex: 0 0 auto; place-items: center; color: var(--ink-soft); background: transparent; border: 1px solid transparent; border-radius: 8px; cursor: pointer; }
.small-icon-button { width: 27px; height: 27px; font-size: 20px; line-height: 1; }
.small-icon-button:hover, .icon-button:hover { background: var(--surface-soft); border-color: var(--line); }
.search-field, .resource-toolbar input { width: 100%; min-height: 34px; padding: 7px 10px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 7px; font-size: 12px; }
.conversation-items { display: grid; gap: 3px; padding-top: 7px; }
.conversation-items button { overflow: hidden; padding: 7px 9px; color: var(--ink-soft); background: transparent; border: 0; border-radius: 7px; text-align: left; text-overflow: ellipsis; white-space: nowrap; cursor: pointer; font-size: 12px; }
.conversation-items button:hover { color: var(--ink); background: var(--surface-soft); }
.sidebar-bottom { margin-top: auto; padding: 16px 8px 2px; border-top: 1px solid var(--line); }
.sidebar-tip { margin: 0 0 10px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.admin-link { color: var(--ink-soft); text-decoration: none; font-size: 11px; }
.admin-link:hover { color: var(--accent); }

.main-column { display: flex; min-width: 0; min-height: 100vh; flex-direction: column; }
.topbar { position: sticky; top: 0; z-index: 10; display: flex; min-height: 62px; align-items: center; justify-content: space-between; padding: 0 30px; background: color-mix(in srgb, var(--surface) 92%, transparent); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.topbar-left, .topbar-actions { display: flex; align-items: center; gap: 15px; }
.breadcrumb { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: 12px; }
.breadcrumb-brand { color: var(--ink-soft); font-weight: 620; }
.connection-status { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }
.connection-status::before { content: ""; width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.icon-button { width: 34px; height: 34px; font-size: 17px; }
.theme-toggle { font-size: 18px; }
.user-menu { position: relative; }
.user-menu summary { display: block; cursor: pointer; list-style: none; }
.user-menu summary::-webkit-details-marker { display: none; }
.avatar { display: grid; width: 31px; height: 31px; place-items: center; color: var(--accent); background: var(--accent-soft); border-radius: 50%; font-size: 12px; font-weight: 700; }
.user-menu-popover { position: absolute; top: 41px; right: 0; z-index: 40; display: grid; min-width: 170px; gap: 3px; padding: 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); }
.user-menu-popover a, .user-menu-popover button { display: block; padding: 8px 9px; color: var(--ink-soft); background: transparent; border: 0; border-radius: 6px; text-align: left; text-decoration: none; cursor: pointer; font-size: 12px; }
.user-menu-popover a:hover, .user-menu-popover button:hover { background: var(--surface-soft); color: var(--ink); }
.menu-title { padding: 7px 9px 5px; color: var(--muted); font-size: 10px; font-weight: 650; letter-spacing: .07em; text-transform: uppercase; }
.user-menu-popover form { margin: 0; }
.content-frame { display: grid; grid-template-columns: minmax(0, 1fr) 228px; gap: 36px; width: min(1340px, 100%); flex: 1; align-self: center; padding: 39px 46px 30px; }
.main-content { min-width: 0; max-width: 920px; width: 100%; margin: 0 auto; }
.error-banner { margin: 0 0 16px; padding: 10px 13px; color: var(--danger); background: var(--danger-soft); border: 1px solid color-mix(in srgb, var(--danger) 20%, transparent); border-radius: 9px; white-space: pre-wrap; }
.error-banner:empty { display: none; }
.chat-toolbar, .resource-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; }
.chat-heading h1, .resource-heading h1 { margin: 0; color: var(--ink); font-size: clamp(24px, 3vw, 31px); font-weight: 630; letter-spacing: -.045em; line-height: 1.2; }
.eyebrow { margin: 0 0 8px; color: var(--muted); font-size: 9px; font-weight: 720; letter-spacing: .15em; }
.chat-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.danger-quiet { color: var(--danger); }
.danger-quiet:hover { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 25%, transparent); }
.intro-copy { margin: 12px 0 27px; color: var(--muted); font-size: 13px; }
.messages { display: grid; gap: 14px; }
.message, .card, .resource-card { overflow-wrap: anywhere; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; white-space: pre-wrap; box-shadow: 0 3px 12px rgb(28 35 54 / 2%); }
.resource-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr)); gap: 13px; }
.card-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin-top: 13px; }
.badge { display: inline-flex; align-items: center; width: fit-content; padding: 3px 8px; color: var(--ink-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 999px; font-size: 10px; font-weight: 650; line-height: 1.35; text-transform: capitalize; }
.badge-succeeded, .badge-approved, .badge-active { color: var(--green); background: var(--green-soft); border-color: color-mix(in srgb, var(--green) 25%, var(--line)); }
.badge-failed, .badge-denied, .badge-rejected { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 24%, var(--line)); }
.badge-running, .badge-accepted, .badge-pending, .badge-waiting_for_approval { color: var(--accent); background: var(--accent-soft); border-color: color-mix(in srgb, var(--accent) 25%, var(--line)); }
.muted { color: var(--muted); }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.empty-caption { margin: 4px 1px; color: var(--muted); font-size: 11px; line-height: 1.5; }
.message .role { margin-bottom: 7px; color: var(--accent); font-size: 10px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; }
.message-header { display: flex; align-items: center; gap: 10px; margin-bottom: 9px; color: var(--muted); font-size: 10px; }
.message-header .role { margin: 0 auto 0 0; }
.message-header button { padding: 4px 8px; color: var(--ink-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 6px; cursor: pointer; font-size: 10px; }
.message-body { color: var(--ink); overflow-wrap: anywhere; white-space: normal; }
.message-body > :first-child { margin-top: 0; }
.message-body > :last-child { margin-bottom: 0; }
.message-body p { margin: 8px 0; }
.message-body ul { padding-left: 22px; }
.message-body a { text-decoration: underline; text-underline-offset: 2px; }
.message-body code, .code-block code { padding: 2px 5px; color: var(--ink); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 4px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.code-block { margin: 12px 0; padding: 10px; background: var(--surface-soft); border: 1px solid var(--line); border-radius: 9px; }
.code-block > button { float: right; padding: 4px 8px; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line); border-radius: 6px; cursor: pointer; font-size: 10px; }
.code-block pre { clear: both; margin: 9px 0 0; padding-top: 9px; border-top: 1px solid var(--line); white-space: pre-wrap; }
.code-block pre code { display: block; padding: 0; background: transparent; border: 0; white-space: pre-wrap; }
.message p, .card p { margin: 8px 0; }
.messages:empty { display: none; }
.messages:not(:empty) + .empty-state { display: none; }
.empty-state { display: grid; justify-items: center; margin: 39px 0 26px; padding: 28px 24px 18px; text-align: center; }
.empty-mark { display: grid; width: 47px; height: 47px; margin-bottom: 15px; place-items: center; color: var(--accent); background: var(--accent-soft); border-radius: 15px; font-size: 22px; }
.empty-state h2 { margin: 0 0 7px; font-size: 17px; font-weight: 620; letter-spacing: -.02em; }
.empty-state > p { max-width: 380px; margin: 0; color: var(--muted); font-size: 12px; }
.empty-state .prompt-hint { margin-top: 14px; color: var(--ink-soft); font-size: 11px; }
.run-controls { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.run-status { width: 100%; margin: 6px 0; padding: 8px 11px; color: var(--ink-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 8px; font-size: 12px; white-space: pre-wrap; }
.text-button { padding: 6px 10px; color: var(--danger); background: transparent; border: 0; cursor: pointer; font-size: 12px; }
.composer { margin-top: 11px; padding: 8px 9px 9px; background: var(--surface); border: 1px solid var(--line-strong); border-radius: 13px; box-shadow: 0 8px 24px rgb(30 38 60 / 5%); transition: border-color .15s ease, box-shadow .15s ease; }
.composer:focus-within { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 9%, transparent), 0 8px 24px rgb(30 38 60 / 5%); }
.composer-hint { margin: 4px 10px 0; color: var(--muted); font-size: 10px; }
.composer textarea { display: block; width: 100%; min-height: 75px; padding: 9px 10px; resize: vertical; color: var(--ink); background: transparent; border: 0; outline: 0; font-size: 13px; line-height: 1.55; }
.composer textarea::placeholder, input::placeholder { color: color-mix(in srgb, var(--muted) 75%, transparent); }
.composer textarea:focus-visible { outline: none; }
.composer-footer { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 7px 1px 0 9px; border-top: 1px solid var(--line); }
.model-label { margin: 0; letter-spacing: .04em; }
.muted-inline { color: var(--muted); font-weight: 450; letter-spacing: 0; text-transform: none; }
.composer-controls { display: flex; align-items: center; gap: 8px; }
.composer-controls select { max-width: 240px; min-width: 145px; padding: 6px 8px; color: var(--ink-soft); background: var(--surface); border: 1px solid var(--line); border-radius: 7px; font-size: 11px; }
.send-button, .primary-button { display: inline-flex; align-items: center; justify-content: center; gap: 11px; min-height: 35px; padding: 7px 13px; color: #fff; background: #606fe0; border: 1px solid #606fe0; border-radius: 8px; cursor: pointer; font-size: 12px; font-weight: 620; transition: background .15s ease, transform .15s ease; }
.send-button:hover, .primary-button:hover { background: #4d5fd1; border-color: #4d5fd1; }
.send-button:active, .primary-button:active { transform: translateY(1px); }
:root[data-theme="dark"] .send-button, :root[data-theme="dark"] .primary-button { color: #181b24; background: #aab4ff; border-color: #aab4ff; }
:root[data-theme="dark"] .send-button:hover, :root[data-theme="dark"] .primary-button:hover { background: #c0c8ff; border-color: #c0c8ff; }
.send-button span:last-child { display: grid; width: 19px; height: 19px; place-items: center; background: rgb(255 255 255 / 20%); border-radius: 5px; font-size: 14px; }
.feedback-note { display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 15px; color: var(--muted); font-size: 10px; }
.feedback-note > span { color: var(--accent); font-size: 13px; }
.context-rail { align-self: start; margin-top: 122px; padding: 20px 17px; background: var(--surface); border: 1px solid var(--line); border-radius: 12px; }
.rail-icon { display: grid; width: 32px; height: 32px; margin-bottom: 14px; place-items: center; color: var(--accent); background: var(--accent-soft); border-radius: 9px; font-size: 17px; }
.rail-card h2 { margin: 0 0 6px; font-size: 12px; font-weight: 650; }
.rail-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.6; }
.rail-divider { height: 1px; margin: 16px 0 12px; background: var(--line); }
.rail-caption { margin: 0; color: var(--muted); font-size: 10px; }
.app-footer { display: flex; justify-content: space-between; gap: 12px; padding: 12px 30px 14px; color: var(--muted); border-top: 1px solid var(--line); font-size: 10px; }

.resource-panel { padding-bottom: 40px; }
.resource-heading { align-items: center; }
.resource-help { margin: 10px 0 21px; color: var(--muted); font-size: 13px; }
.resource-toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 13px; }
.resource-toolbar input { max-width: 380px; min-height: 38px; font-size: 12px; }
.resource-toolbar .primary-button { margin-left: auto; }
.resource-form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 13px 0 20px; padding: 17px; background: var(--surface); border: 1px solid var(--line); border-radius: 11px; }
.resource-form:empty { display: none; }
.resource-form label, .form-field label { display: grid; gap: 5px; color: var(--ink-soft); font-size: 11px; font-weight: 600; }
.resource-form input, .resource-form textarea, .resource-form select, .form-field input { width: 100%; min-height: 37px; padding: 8px 10px; color: var(--ink); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 7px; }
.resource-form textarea { min-height: 76px; resize: vertical; }
.resource-form button { justify-self: start; padding: 8px 13px; color: white; background: var(--accent); border: 0; border-radius: 7px; cursor: pointer; }
.resource-items { display: grid; gap: 12px; }
.resource-items .card { min-width: 0; }
.resource-items pre, pre { max-width: 100%; overflow: auto; color: var(--ink-soft); font-size: 11px; }
.resource-items .row { display: flex; flex-wrap: wrap; gap: 7px; margin: 10px 0; }
.resource-items .row button, .resource-items a { padding: 6px 9px; color: var(--ink-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 7px; text-decoration: none; cursor: pointer; font-size: 11px; }
.resource-items .row button:hover, .resource-items a:hover { color: var(--accent); border-color: var(--accent); }

.notifications { position: fixed; right: 22px; bottom: 20px; z-index: 90; display: grid; gap: 8px; width: min(360px, calc(100vw - 32px)); pointer-events: none; }
.toast { padding: 11px 14px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 9px; box-shadow: var(--shadow); font-size: 12px; }
#dialog { width: min(460px, calc(100vw - 32px)); max-width: none; max-height: min(86vh, 760px); margin: auto; padding: 0; overflow-y: auto; color: var(--ink); background: transparent; border: 0; }
#dialog::backdrop { background: rgb(16 20 29 / 48%); backdrop-filter: blur(3px); }
.dialog-card { position: relative; width: min(460px, 100%); padding: 25px; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 15px; box-shadow: var(--shadow); }
.dialog-card .form-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; max-height: 52vh; overflow-y: auto; }
.dialog-card .form-grid label { display: grid; gap: 5px; color: var(--ink-soft); font-size: 12px; font-weight: 600; }
.dialog-card .form-grid input, .dialog-card .form-grid textarea, .dialog-card .form-grid select { width: 100%; min-height: 39px; padding: 8px 10px; color: var(--ink); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 7px; }
.dialog-card .form-grid textarea { min-height: 100px; resize: vertical; }
.form-error { color: var(--danger); font-size: 12px; }
.dialog-card h2 { margin: 0 0 12px; font-size: 21px; letter-spacing: -.03em; }
.dialog-body { color: var(--ink-soft); font-size: 13px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 21px; }
.dialog-actions button, button.primary, button.danger { padding: 8px 12px; color: var(--ink-soft); background: var(--surface-soft); border: 1px solid var(--line); border-radius: 7px; cursor: pointer; font-size: 12px; font-weight: 600; }
button.primary { color: #fff; background: #606fe0; border-color: #606fe0; }
button.primary:hover { background: #4d5fd1; }
button.danger { color: var(--danger); background: var(--danger-soft); border-color: color-mix(in srgb, var(--danger) 24%, var(--line)); }
.dialog-actions button:hover { border-color: var(--line-strong); }
.dialog-close { position: absolute; top: 12px; right: 13px; width: 30px; height: 30px; color: var(--muted); background: transparent; border: 0; border-radius: 7px; cursor: pointer; font-size: 20px; }

/* Sign-in */
.login-page { min-height: 100vh; background: radial-gradient(ellipse at 78% 45%, color-mix(in srgb, var(--accent-soft) 58%, var(--page)), var(--page) 52%); }
.login-header { display: flex; height: 74px; align-items: center; justify-content: space-between; padding: 0 clamp(20px, 6vw, 78px); border-bottom: 1px solid var(--line); }
.login-header-note { color: var(--muted); font-size: 11px; }
.login-layout { display: grid; grid-template-columns: minmax(300px, 420px) minmax(220px, 310px); align-items: center; justify-content: center; gap: clamp(45px, 9vw, 125px); min-height: calc(100vh - 130px); padding: 46px 22px; }
.login-card { width: 100%; padding: clamp(25px, 4vw, 40px); background: var(--surface); border: 1px solid var(--line); border-radius: 16px; box-shadow: 0 18px 60px rgb(39 49 82 / 8%); }
.login-symbol { display: grid; width: 43px; height: 43px; margin-bottom: 22px; place-items: center; color: var(--accent); background: var(--accent-soft); border-radius: 13px; font-size: 21px; }
.login-card h1 { margin: 0; font-size: 26px; font-weight: 650; letter-spacing: -.045em; }
.login-intro { margin: 8px 0 24px; color: var(--muted); font-size: 13px; }
.login-card form { display: grid; gap: 15px; }
.form-field input { min-height: 43px; background: var(--surface); font-size: 13px; }
.form-field input:focus { border-color: var(--accent); }
.form-field ul { margin: 6px 0 0; padding-left: 18px; color: var(--muted); font-size: 11px; }
.field-help { margin: 4px 0 0; color: var(--muted); font-size: 11px; }
.form-errors { margin-top: 5px; color: var(--danger); font-size: 11px; }
.form-errors p { margin: 2px 0; }
.login-submit { width: 100%; min-height: 42px; margin-top: 3px; }
.login-submit span { margin-left: auto; }
.login-footnote { margin: 18px 0 0; color: var(--muted); text-align: center; font-size: 10px; }
.login-aside { max-width: 310px; color: var(--ink-soft); }
.login-quote-mark { display: block; height: 54px; color: var(--accent); font-family: Georgia, serif; font-size: 76px; line-height: 1; opacity: .8; }
.login-aside > p { margin: 8px 0 20px; font-size: clamp(17px, 2vw, 22px); font-weight: 470; letter-spacing: -.025em; line-height: 1.5; }
.login-aside-rule { width: 34px; height: 2px; margin-bottom: 11px; background: var(--accent); border-radius: 2px; }
.login-aside > span:last-child { color: var(--muted); font-size: 9px; font-weight: 680; letter-spacing: .12em; }
.login-footer { display: flex; justify-content: space-between; padding: 12px clamp(20px, 6vw, 78px); color: var(--muted); border-top: 1px solid var(--line); font-size: 10px; }
.sidebar-scrim { display: none; }
.mobile-menu { display: none; }

@media (min-width: 1450px) { .content-frame { padding-right: 58px; padding-left: 58px; } }
@media (max-width: 1080px) {
  .content-frame { grid-template-columns: minmax(0, 1fr); max-width: 900px; padding-right: 34px; padding-left: 34px; }
  .context-rail { display: none; }
}
@media (max-width: 760px) {
  .app-shell { grid-template-columns: minmax(0, 1fr); }
  .sidebar { position: fixed; top: 0; bottom: 0; left: 0; width: min(290px, calc(100vw - 48px)); height: 100dvh; min-height: 0; transform: translateX(-105%); transition: transform .22s ease; box-shadow: var(--shadow); }
  .sidebar.is-open { transform: translateX(0); }
  .sidebar-scrim { position: fixed; inset: 0; z-index: 19; display: block; background: rgb(15 19 28 / 38%); opacity: 0; visibility: hidden; transition: opacity .2s ease, visibility .2s ease; }
  .sidebar.is-open ~ .sidebar-scrim { opacity: 1; visibility: visible; }
  .mobile-menu { display: inline-grid; }
  .topbar { min-height: 57px; padding: 0 16px; }
  .topbar-left, .topbar-actions { gap: 9px; }
  .content-frame { padding: 28px 21px 26px; }
  .app-footer { padding-right: 18px; padding-left: 18px; }
  .chat-toolbar { align-items: flex-start; flex-direction: column; }
  .chat-actions { align-self: flex-end; margin-top: -4px; }
  .intro-copy { margin-top: 12px; }
  .context-rail { display: none; }
}
@media (max-width: 480px) {
  .topbar { padding: 0 11px; }
  .breadcrumb { gap: 7px; font-size: 11px; }
  .connection-status { gap: 5px; font-size: 0; }
  .connection-status::before { width: 8px; height: 8px; }
  .theme-toggle { width: 31px; height: 31px; }
  .content-frame { padding: 24px 15px; }
  .chat-heading h1, .resource-heading h1 { font-size: 25px; }
  .chat-actions .toolbar-button { padding: 6px 8px; font-size: 11px; }
  .empty-state { margin: 28px 0 18px; padding-right: 5px; padding-left: 5px; }
  .composer-footer { align-items: flex-start; flex-direction: column; gap: 7px; padding-left: 8px; }
  .composer-controls { width: 100%; justify-content: space-between; }
  .composer-controls select { min-width: 0; flex: 1; }
  .resource-toolbar { flex-wrap: wrap; }
  .resource-toolbar input { max-width: none; flex: 1 1 100%; }
  .resource-toolbar .primary-button { margin-left: 0; }
  .resource-form { grid-template-columns: minmax(0, 1fr); padding: 13px; }
  .app-footer span:last-child { text-align: right; }
  .login-header { height: 65px; }
  .login-header-note { max-width: 130px; text-align: right; font-size: 10px; }
  .login-layout { grid-template-columns: minmax(0, 420px); min-height: calc(100vh - 118px); padding: 30px 16px; }
  .login-aside { display: none; }
  .login-card { padding: 25px 22px; }
  .login-footer { padding-right: 17px; padding-left: 17px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}