:root {
  color-scheme: dark;
  --bg-base: #07070b;
  --bg-deep: #050507;
  --surface-1: #0d0d14;
  --surface-2: #12121b;
  --surface-3: #181824;
  --surface-hover: #1d1b2a;
  --border-subtle: rgba(255, 255, 255, .075);
  --border-strong: rgba(255, 255, 255, .13);
  --border-purple: rgba(168, 85, 247, .34);
  --text-primary: #f7f5fc;
  --text-secondary: #aaa6b7;
  --text-muted: #716e7e;
  --purple: #8b5cf6;
  --purple-bright: #a855f7;
  --purple-electric: #c084fc;
  --purple-deep: #5b21b6;
  --green: #40d18a;
  --amber: #f4ab45;
  --red: #ff5e6c;
  --blue: #60a5fa;
  --font-display: "SF Pro Display", "Segoe UI Variable Display", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-body: "SF Pro Text", "Segoe UI Variable Text", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 22px;
  --shadow-panel: 0 18px 50px rgba(0, 0, 0, .22);
  --shadow-float: 0 28px 90px rgba(0, 0, 0, .52);
  --glow-purple: 0 0 38px rgba(139, 92, 246, .14);
  --motion-fast: 140ms;
  --motion-normal: 220ms;
  --motion-slow: 360ms;
  --ease-out: cubic-bezier(.2, .8, .2, 1);
  --ease-spring: cubic-bezier(.34, 1.3, .64, 1);
  --sidebar-width: 238px;
  --z-sidebar: 20;
  --z-topbar: 15;
  --z-overlay: 80;
  --z-toast: 100;
}

* { box-sizing: border-box; }
html { overflow-x: hidden; background: var(--bg-base); scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; overflow-x: hidden; background: var(--bg-base); color: var(--text-primary); font: 14px/1.5 var(--font-body); -webkit-font-smoothing: antialiased; }
button, input, textarea, select { color: inherit; font: inherit; }
button { border: 0; }
button, [role="button"] { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
[hidden] { display: none !important; }
::selection { background: rgba(168, 85, 247, .38); color: #fff; }
:focus-visible { outline: 2px solid var(--purple-electric); outline-offset: 3px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #2a2734; border: 3px solid transparent; border-radius: 999px; background-clip: padding-box; }
::-webkit-scrollbar-thumb:hover { background-color: #494255; }

.ambient { position: fixed; inset: 0; z-index: -2; overflow: hidden; contain: strict; pointer-events: none; background: radial-gradient(circle at 53% -20%, rgba(139, 92, 246, .11), transparent 35%), linear-gradient(var(--bg-base), var(--bg-deep)); }
.ambient::after { content: ""; position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px); background-size: 48px 48px; mask-image: linear-gradient(to bottom, #000, transparent 80%); }
.ambient i { position: absolute; width: 48vw; aspect-ratio: 1; border-radius: 50%; filter: blur(110px); opacity: .055; background: var(--purple-bright); }
.ambient i:nth-child(1) { left: 28%; top: -30%; }
.ambient i:nth-child(2) { right: -30%; top: 30%; opacity: .035; }
.ambient i:nth-child(3) { left: -28%; bottom: -35%; opacity: .025; }

.micro-label { margin: 0; color: #a98ad9; font: 700 10px/1.3 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.supporting-copy, .page-heading p, .overview-intro p, .search-hero > p, .ask-intro > p { color: var(--text-secondary); }
.status-dot { display: inline-block; width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; background: var(--text-muted); box-shadow: 0 0 0 3px rgba(255,255,255,.03); }
.status-dot.success { background: var(--green); box-shadow: 0 0 12px rgba(64, 209, 138, .45); }
.status-dot.warning { background: var(--amber); }
.status-dot.error { background: var(--red); box-shadow: 0 0 12px rgba(255,94,108,.4); }

.button { display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2); min-height: 40px; padding: 0 16px; border-radius: var(--radius-md); cursor: pointer; font-weight: 650; transition: transform var(--motion-fast) var(--ease-out), border-color var(--motion-normal), background var(--motion-normal), box-shadow var(--motion-normal), color var(--motion-normal); }
.button:hover { transform: translateY(-1px); }
.button:active { transform: scale(.98); }
.button.primary { color: #fff; background: linear-gradient(135deg, #7650e8, var(--purple-bright)); box-shadow: 0 9px 28px rgba(139, 92, 246, .21), inset 0 1px rgba(255,255,255,.16); }
.button.primary:hover { box-shadow: 0 12px 34px rgba(139, 92, 246, .3), inset 0 1px rgba(255,255,255,.2); filter: brightness(1.06); }
.button.secondary { color: var(--text-secondary); border: 1px solid var(--border-subtle); background: rgba(255,255,255,.035); }
.button.secondary:hover { color: var(--text-primary); border-color: var(--border-strong); background: rgba(255,255,255,.055); }
.button.full { width: 100%; }
.button:disabled { cursor: wait; opacity: .58; transform: none; }
.icon-button { position: relative; display: grid; place-items: center; width: 38px; height: 38px; padding: 0; border: 1px solid transparent; border-radius: var(--radius-md); color: var(--text-secondary); background: transparent; cursor: pointer; transition: color var(--motion-fast), border-color var(--motion-fast), background var(--motion-fast), transform var(--motion-fast); }
.icon-button:hover { color: var(--text-primary); border-color: var(--border-subtle); background: rgba(255,255,255,.04); }
.icon-button:active { transform: scale(.96); }
[data-tooltip]::after { content: attr(data-tooltip); position: absolute; inset-inline-start: calc(100% + 10px); top: 50%; z-index: 50; transform: translate(3px,-50%); padding: 6px 8px; border: 1px solid var(--border-subtle); border-radius: 7px; opacity: 0; pointer-events: none; white-space: nowrap; color: var(--text-primary); background: rgba(17,16,24,.96); box-shadow: var(--shadow-panel); font-size: 11px; transition: opacity var(--motion-fast), transform var(--motion-fast); }
[data-tooltip]:hover::after { opacity: 1; transform: translate(0,-50%); }

.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-shell::before { content: ""; position: fixed; inset: 0; pointer-events: none; background: linear-gradient(90deg, transparent 49.9%, rgba(168,85,247,.08) 50%, transparent 50.1%), linear-gradient(transparent 49.9%, rgba(168,85,247,.06) 50%, transparent 50.1%); background-size: 200px 200px; mask-image: radial-gradient(circle at center, #000, transparent 66%); }
.login-card { position: relative; width: min(440px, 100%); padding: 38px; overflow: hidden; border: 1px solid var(--border-subtle); border-radius: var(--radius-xl); background: linear-gradient(145deg, rgba(20,19,29,.96), rgba(10,10,15,.98)); box-shadow: var(--shadow-float), 0 0 80px rgba(139,92,246,.09); }
.spotlight-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .5; background: radial-gradient(460px circle at var(--mouse-x, 50%) var(--mouse-y, 0%), rgba(168,85,247,.11), transparent 42%); }
.login-card > * { position: relative; z-index: 1; }
.login-signal { width: 72px; height: 72px; display: grid; place-items: center; margin-bottom: 30px; border: 1px solid rgba(168,85,247,.15); border-radius: 21px; background: rgba(139,92,246,.045); }
.login-card h1 { margin: 11px 0 9px; font: 700 clamp(32px, 7vw, 42px)/1.05 var(--font-display); letter-spacing: -.045em; }
.login-copy { margin: 0 0 27px; max-width: 39ch; line-height: 1.65; }
.stack-form { display: grid; gap: 15px; }
.stack-form label { display: grid; gap: 7px; color: var(--text-secondary); font-size: 12px; font-weight: 600; }
.stack-form input, .ai-composer textarea, .search-composer input, .inline-search input, .command-panel input, select { width: 100%; border: 1px solid var(--border-subtle); color: var(--text-primary); background: rgba(4,4,7,.64); outline: 0; transition: border-color var(--motion-fast), box-shadow var(--motion-fast), background var(--motion-fast); }
.stack-form input { height: 46px; border-radius: var(--radius-md); padding: 0 13px; }
.stack-form input:focus, .ai-composer:focus-within, .search-composer:focus-within, .inline-search:focus-within { border-color: var(--border-purple); box-shadow: 0 0 0 3px rgba(139,92,246,.08), var(--glow-purple); background: rgba(7,7,11,.86); }
.login-button { margin-top: 3px; }
.form-error { min-height: 20px; margin: 0; color: #ff8b95; font-size: 12px; }
.secure-note { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 20px 0 0; color: var(--text-muted); font: 10px var(--font-mono); }

.app-shell { min-height: 100vh; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: var(--z-sidebar); width: var(--sidebar-width); display: flex; flex-direction: column; border-right: 1px solid var(--border-subtle); background: rgba(8,8,12,.9); backdrop-filter: blur(22px); transition: width var(--motion-normal) var(--ease-out); }
.sidebar-head { height: 80px; display: flex; align-items: center; justify-content: space-between; padding: 0 17px 0 20px; border-bottom: 1px solid var(--border-subtle); }
.brand { min-width: 0; display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { position: relative; width: 35px; height: 35px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid rgba(192,132,252,.24); border-radius: 11px; background: linear-gradient(145deg, rgba(168,85,247,.2), rgba(91,33,182,.08)); box-shadow: inset 0 1px rgba(255,255,255,.1), 0 0 25px rgba(139,92,246,.12); }
.brand-mark::before, .brand-mark::after, .brand-mark i { content: ""; position: absolute; width: 5px; height: 5px; border-radius: 50%; background: var(--purple-electric); box-shadow: 0 0 10px var(--purple-bright); }
.brand-mark::before { transform: translate(-7px, 5px); }
.brand-mark::after { transform: translate(7px, 5px); }
.brand-mark i:first-child { transform: translateY(-7px); }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(3) { width: 1px; height: 14px; border-radius: 0; background: linear-gradient(var(--purple-electric), transparent); transform-origin: top; }
.brand-mark i:nth-child(2) { transform: translateY(-5px) rotate(34deg); }
.brand-mark i:nth-child(3) { transform: translateY(-5px) rotate(-34deg); }
.brand-copy { display: grid; line-height: 1.03; white-space: nowrap; }
.brand-copy strong { font-size: 14px; letter-spacing: -.015em; }
.brand-copy small { margin-top: 3px; color: var(--text-muted); font-size: 10px; letter-spacing: .09em; text-transform: uppercase; }
.collapse-button svg { transition: transform var(--motion-normal) var(--ease-out); }
.primary-nav { position: relative; display: grid; gap: 4px; padding: 18px 12px; overflow-y: auto; }
.nav-indicator { position: absolute; inset-inline: 12px; top: 18px; height: 42px; border: 1px solid rgba(168,85,247,.15); border-radius: 11px; background: linear-gradient(90deg, rgba(139,92,246,.16), rgba(139,92,246,.05)); box-shadow: inset 3px 0 var(--purple), 0 0 28px rgba(139,92,246,.075); pointer-events: none; transition: transform var(--motion-normal) var(--ease-out), height var(--motion-normal) var(--ease-out), opacity var(--motion-fast); }
.nav-item { position: relative; z-index: 1; height: 42px; display: flex; align-items: center; gap: 12px; padding: 0 12px; border-radius: 11px; color: #7d7989; background: transparent; cursor: pointer; text-align: left; font-size: 13px; font-weight: 560; transition: color var(--motion-fast), transform var(--motion-fast); }
.nav-item svg { width: 18px; height: 18px; flex: 0 0 auto; }
.nav-item:hover { color: #d8d4e2; transform: translateX(1px); }
.nav-item.active { color: var(--text-primary); }
.nav-item.active svg { color: var(--purple-electric); filter: drop-shadow(0 0 5px rgba(168,85,247,.45)); transform: scale(1.05); }
.nav-item > span { white-space: nowrap; }
.ai-nav .ai-pulse { margin-left: auto; width: 5px; height: 5px; border-radius: 50%; background: var(--purple-electric); box-shadow: 0 0 9px var(--purple); opacity: .7; }
.nav-section-label { height: 25px; display: flex; align-items: end; margin: 9px 12px 3px; color: #55515e; font: 650 9px var(--font-mono); letter-spacing: .13em; text-transform: uppercase; }
.nav-count { margin-left: auto; min-width: 18px; padding: 2px 5px; border-radius: 99px; color: #ddd2ff; background: rgba(139,92,246,.18); font: 700 9px var(--font-mono); text-align: center; }
.sidebar-foot { position: relative; margin-top: auto; padding: 12px; border-top: 1px solid var(--border-subtle); }
.profile-button { width: 100%; display: flex; align-items: center; gap: 10px; padding: 8px; border-radius: 12px; color: var(--text-primary); background: transparent; cursor: pointer; text-align: left; transition: background var(--motion-fast); }
.profile-button:hover { background: rgba(255,255,255,.04); }
.avatar { width: 34px; height: 34px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid rgba(192,132,252,.25); border-radius: 10px; color: #e9ddff; background: linear-gradient(145deg, #3a2465, #1b142c); font-size: 12px; font-weight: 700; }
.avatar.mini { width: 26px; height: 26px; border-radius: 8px; }
.profile-copy { min-width: 0; display: grid; flex: 1; }
.profile-copy strong { overflow: hidden; font-size: 12px; text-overflow: ellipsis; }
.profile-copy small { display: flex; align-items: center; gap: 6px; margin-top: 2px; color: var(--text-muted); font-size: 9px; }
.profile-button > svg { width: 15px; color: var(--text-muted); }
.dropdown { position: absolute; z-index: 30; padding: 6px; border: 1px solid var(--border-subtle); border-radius: 12px; background: rgba(18,17,25,.98); box-shadow: var(--shadow-float); backdrop-filter: blur(18px); animation: dropdownIn var(--motion-fast) var(--ease-out); }
.profile-menu { inset: auto 12px 68px 12px; }
.dropdown button { width: 100%; padding: 9px 10px; border-radius: 8px; color: var(--text-secondary); background: transparent; text-align: left; cursor: pointer; }
.dropdown button:hover { color: var(--text-primary); background: rgba(255,255,255,.055); }
.sidebar.collapsed { width: 76px; }
.sidebar.collapsed .brand-copy, .sidebar.collapsed .nav-item > span, .sidebar.collapsed .nav-section-label, .sidebar.collapsed .profile-copy, .sidebar.collapsed .profile-button > svg, .sidebar.collapsed .nav-count, .sidebar.collapsed .ai-pulse { opacity: 0; width: 0; overflow: hidden; pointer-events: none; }
.sidebar.collapsed .sidebar-head { padding: 0 20px; }
.sidebar.collapsed .collapse-button { position: absolute; left: 60px; width: 26px; height: 32px; border-color: var(--border-subtle); background: var(--surface-2); }
.sidebar.collapsed .collapse-button svg { transform: rotate(180deg); }
.sidebar.collapsed .nav-item { justify-content: center; padding: 0; }
.sidebar.collapsed .nav-item:hover { transform: none; }
.sidebar.collapsed .profile-button { justify-content: center; }
.sidebar.collapsed + .workspace { margin-left: 76px; }

.workspace { min-width: 0; margin-left: var(--sidebar-width); transition: margin-left var(--motion-normal) var(--ease-out); }
.topbar { position: sticky; top: 0; z-index: var(--z-topbar); height: 80px; display: grid; grid-template-columns: 1fr minmax(260px, 430px) 1fr; align-items: center; gap: 24px; padding: 0 clamp(20px, 3vw, 42px); border-bottom: 1px solid var(--border-subtle); background: rgba(7,7,11,.78); backdrop-filter: blur(22px) saturate(130%); }
.topbar-title { min-width: 0; }
.topbar-title h1 { margin: 3px 0 0; font: 660 18px/1.1 var(--font-display); letter-spacing: -.02em; }
.command-launcher { height: 38px; min-width: 0; display: flex; align-items: center; gap: 9px; padding: 0 10px 0 12px; border: 1px solid var(--border-subtle); border-radius: 11px; color: var(--text-muted); background: rgba(255,255,255,.025); cursor: pointer; transition: border-color var(--motion-fast), background var(--motion-fast), color var(--motion-fast), box-shadow var(--motion-fast); }
.command-launcher:hover { color: var(--text-secondary); border-color: var(--border-strong); background: rgba(255,255,255,.04); box-shadow: 0 0 30px rgba(139,92,246,.06); }
.command-launcher svg { width: 16px; flex: 0 0 auto; }
.command-launcher span { min-width: 0; flex: 1; overflow: hidden; white-space: nowrap; text-align: left; text-overflow: ellipsis; font-size: 12px; }
kbd { display: inline-flex; align-items: center; justify-content: center; min-width: 23px; height: 21px; padding: 0 5px; border: 1px solid var(--border-subtle); border-radius: 6px; color: #8c8795; background: rgba(255,255,255,.035); box-shadow: inset 0 -1px rgba(0,0,0,.3); font: 9px var(--font-mono); }
.topbar-actions { display: flex; align-items: center; justify-content: end; gap: 5px; }
.sync-button { height: 38px; display: inline-flex; align-items: center; gap: 8px; padding: 0 11px; border: 1px solid var(--border-subtle); border-radius: 11px; color: var(--text-secondary); background: rgba(255,255,255,.025); cursor: pointer; font-size: 11px; font-weight: 600; transition: color var(--motion-fast), border-color var(--motion-fast), background var(--motion-fast); }
.sync-button:hover { color: var(--text-primary); border-color: var(--border-purple); background: rgba(139,92,246,.07); }
.sync-button svg { width: 16px; }
.sync-button.syncing svg { animation: spin .8s linear infinite; color: var(--purple-electric); }
.sync-button.synced svg { color: var(--green); animation: syncComplete .35s var(--ease-spring); }
.notification-dot { position: absolute; right: 7px; top: 6px; width: 6px; height: 6px; border: 1px solid var(--bg-base); border-radius: 50%; background: var(--purple-electric); box-shadow: 0 0 8px var(--purple); }

.content { width: min(1540px, 100%); margin: 0 auto; padding: 36px clamp(20px, 3vw, 42px) 70px; }
.view { display: none; }
.view.active { display: block; animation: viewIn var(--motion-normal) var(--ease-out) both; }
.page-heading, .overview-intro { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 28px; }
.page-heading h2, .overview-intro h2, .search-hero h2, .ask-intro h2 { margin: 7px 0 5px; font: 680 clamp(27px, 3vw, 36px)/1.08 var(--font-display); letter-spacing: -.045em; }
.page-heading p { margin: 0; }
.compact-heading { align-items: center; }
.overview-intro h2 { font-size: clamp(26px, 3vw, 34px); }
.overview-intro h2 span { color: #777382; font-weight: 520; }
.overview-intro .supporting-copy { margin: 7px 0 0; }

.panel, .metric-card, .assignment-row, .course-card, .search-result { position: relative; border: 1px solid var(--border-subtle); background: linear-gradient(145deg, rgba(18,18,27,.92), rgba(12,12,18,.94)); box-shadow: 0 12px 38px rgba(0,0,0,.1); }
.panel { border-radius: var(--radius-lg); overflow: hidden; }
.panel::before, .metric-card::before, .course-card::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; background: radial-gradient(360px circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(168,85,247,.09), transparent 45%); transition: opacity var(--motion-normal); }
.panel.spotlight:hover::before, .metric-card:hover::before, .course-card:hover::before { opacity: 1; }
.panel-header { position: relative; z-index: 1; min-height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--border-subtle); }
.panel-header.compact { min-height: 67px; }
.panel-header h3, .settings-section h3 { margin: 4px 0 0; font: 640 17px/1.2 var(--font-display); letter-spacing: -.025em; }
.panel-meta { color: var(--text-muted); font: 10px var(--font-mono); }
.text-button { padding: 8px; border-radius: 8px; color: var(--text-secondary); background: transparent; cursor: pointer; font-size: 11px; font-weight: 600; }
.text-button span { display: inline-block; margin-left: 3px; color: var(--purple-electric); transition: transform var(--motion-fast); }
.text-button:hover { color: var(--text-primary); background: rgba(255,255,255,.035); }
.text-button:hover span { transform: translateX(2px); }

.metric-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px; margin-bottom: 16px; }
.metric-card { min-height: 120px; display: flex; align-items: center; gap: 16px; padding: 18px; overflow: hidden; border-radius: var(--radius-lg); transition: transform var(--motion-normal) var(--ease-out), border-color var(--motion-normal), box-shadow var(--motion-normal); animation: cardIn var(--motion-slow) var(--ease-out) both; }
.metric-card:nth-child(2) { animation-delay: 35ms; }
.metric-card:nth-child(3) { animation-delay: 70ms; }
.metric-card:nth-child(4) { animation-delay: 105ms; }
.metric-card:hover { transform: translateY(-2px); border-color: var(--border-purple); box-shadow: var(--glow-purple); }
.metric-icon { width: 38px; height: 38px; flex: 0 0 auto; display: grid; place-items: center; border: 1px solid rgba(168,85,247,.12); border-radius: 12px; color: #aa8df0; background: rgba(139,92,246,.065); }
.metric-card.danger .metric-icon { color: #ff7d88; border-color: rgba(255,94,108,.15); background: rgba(255,94,108,.07); }
.metric-icon svg { width: 18px; }
.metric-card > div:last-child { min-width: 0; display: grid; }
.metric-card span { color: var(--text-secondary); font-size: 11px; }
.metric-card strong { margin: 1px 0 0; font: 680 28px/1.1 var(--font-display); letter-spacing: -.035em; font-variant-numeric: tabular-nums; }
.metric-card small { margin-top: 4px; color: var(--text-muted); font: 9px var(--font-mono); }
.skeleton-card::after, .skeleton-row::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 25%, rgba(192,132,252,.045) 45%, rgba(255,255,255,.045) 50%, transparent 72%); background-size: 220% 100%; animation: shimmer 1.6s ease infinite; }
.skeleton-card.loaded::after { display: none; }

.overview-grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(320px, .72fr); gap: 16px; }
.overview-side { display: grid; align-content: start; gap: 16px; }
.attention-list { position: relative; padding: 4px 12px 10px; }
.attention-row { position: relative; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 22px; align-items: center; min-height: 92px; padding: 16px 12px 16px 18px; border-bottom: 1px solid var(--border-subtle); cursor: pointer; transition: background var(--motion-fast), transform var(--motion-fast); }
.attention-row::before { content: ""; position: absolute; left: 2px; width: 2px; height: 34px; border-radius: 3px; background: var(--priority-color, var(--purple)); box-shadow: 0 0 12px color-mix(in srgb, var(--priority-color, var(--purple)) 45%, transparent); }
.attention-row:last-child { border-bottom: 0; }
.attention-row:hover { border-radius: 10px; background: rgba(255,255,255,.028); transform: translateX(1px); }
.attention-primary { min-width: 0; }
.assignment-title { margin: 0; overflow: hidden; color: var(--text-primary); font-size: 14px; font-weight: 640; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.course-name { margin: 5px 0 0; overflow: hidden; color: var(--text-secondary); font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.course-meta { margin-left: 7px; color: var(--text-muted); font: 9px var(--font-mono); }
.attention-meta { display: flex; align-items: center; justify-content: end; gap: 13px; text-align: right; }
.due-stack { display: grid; gap: 2px; }
.due-stack strong { color: #d8d4e0; font-size: 11px; font-weight: 570; }
.due-stack small { color: var(--text-muted); font: 9px var(--font-mono); }
.priority-label, .status-label { display: inline-flex; align-items: center; gap: 6px; width: fit-content; padding: 4px 7px; border: 1px solid color-mix(in srgb, var(--priority-color, var(--border-subtle)) 30%, transparent); border-radius: 7px; color: var(--priority-color, var(--text-secondary)); background: color-mix(in srgb, var(--priority-color, #fff) 7%, transparent); font: 700 8px var(--font-mono); letter-spacing: .07em; text-transform: uppercase; }
.priority-label::before { content: ""; width: 4px; height: 4px; border-radius: 50%; background: currentColor; box-shadow: 0 0 7px currentColor; }
.skeleton-row { position: relative; height: 82px; margin: 8px; overflow: hidden; border-radius: 10px; background: rgba(255,255,255,.025); }
.week-timeline { height: 165px; display: grid; grid-template-columns: repeat(7,1fr); gap: 6px; align-items: end; padding: 18px 16px 15px; }
.week-day { height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: end; gap: 7px; }
.week-bar-wrap { width: 100%; height: 90px; display: flex; align-items: end; justify-content: center; border-radius: 8px; background: linear-gradient(rgba(255,255,255,.014), rgba(255,255,255,.028)); }
.week-bar { width: min(22px, 58%); min-height: 3px; border-radius: 5px 5px 2px 2px; background: linear-gradient(to top, var(--purple-deep), var(--purple-electric)); box-shadow: 0 0 15px rgba(139,92,246,.12); transform-origin: bottom; animation: barRise var(--motion-slow) var(--ease-out) both; }
.week-day strong { color: var(--text-secondary); font: 10px var(--font-mono); }
.week-day small { color: var(--text-muted); font: 8px var(--font-mono); text-transform: uppercase; }
.activity-list { padding: 5px 18px 12px; }
.activity-item { position: relative; display: grid; grid-template-columns: 12px minmax(0,1fr) auto; gap: 9px; min-height: 57px; padding: 12px 0; border-bottom: 1px solid var(--border-subtle); }
.activity-item:last-child { border-bottom: 0; }
.activity-item::before { content: ""; position: absolute; left: 3px; top: 27px; bottom: -15px; width: 1px; background: var(--border-subtle); }
.activity-item:last-child::before { display: none; }
.activity-dot { width: 7px; height: 7px; margin-top: 5px; border: 2px solid var(--surface-1); border-radius: 50%; background: #8f6cdd; box-shadow: 0 0 0 1px #5d477e, 0 0 9px rgba(139,92,246,.25); }
.activity-copy strong { display: block; overflow: hidden; color: #d5d1dc; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.activity-copy small, .activity-time { color: var(--text-muted); font-size: 9px; }

.filter-toolbar { min-height: 60px; display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; padding: 9px 11px; overflow: visible; }
.segmented-control { display: flex; gap: 3px; overflow-x: auto; }
.segmented-control button, .search-filters button, .drawer-tabs button, .settings-nav button { padding: 8px 11px; border-radius: 8px; color: var(--text-muted); background: transparent; cursor: pointer; white-space: nowrap; font-size: 11px; font-weight: 570; transition: color var(--motion-fast), background var(--motion-fast); }
.segmented-control button:hover, .segmented-control button.active { color: var(--text-primary); background: rgba(255,255,255,.055); }
.segmented-control button.active { box-shadow: inset 0 0 0 1px var(--border-subtle); }
.inline-search { height: 38px; min-width: 210px; display: flex; align-items: center; gap: 8px; padding: 0 10px; border: 1px solid var(--border-subtle); border-radius: 10px; color: var(--text-muted); background: rgba(5,5,8,.5); transition: border-color var(--motion-fast), box-shadow var(--motion-fast); }
.inline-search svg { width: 15px; }
.inline-search input { min-width: 0; height: 100%; padding: 0; border: 0; background: transparent; font-size: 11px; }
.assignment-list { display: grid; gap: 7px; }
.assignment-row { --priority-color: var(--purple); min-height: 77px; display: grid; grid-template-columns: minmax(240px, 1.35fr) minmax(140px, .55fr) 100px 108px 28px; gap: 16px; align-items: center; padding: 13px 15px 13px 19px; overflow: hidden; border-radius: 13px; cursor: pointer; transition: transform var(--motion-fast) var(--ease-out), border-color var(--motion-normal), background var(--motion-normal), box-shadow var(--motion-normal); }
.assignment-row::before { content: ""; position: absolute; inset: 18px auto 18px 0; width: 2px; border-radius: 3px; background: var(--priority-color); opacity: .78; }
.assignment-row:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--priority-color) 28%, var(--border-subtle)); background: linear-gradient(105deg, color-mix(in srgb, var(--priority-color) 5%, var(--surface-2)), var(--surface-1)); box-shadow: 0 14px 32px rgba(0,0,0,.18); }
.assignment-row .assignment-title { max-width: 100%; }
.assignment-row .course-name { margin-top: 4px; }
.row-meta { color: var(--text-secondary); font-size: 10px; }
.row-meta strong { display: block; margin-bottom: 2px; color: #d2ced9; font-size: 11px; font-weight: 570; }
.row-more { width: 27px; height: 27px; display: grid; place-items: center; border-radius: 8px; opacity: 0; color: var(--text-secondary); background: rgba(255,255,255,.04); transition: opacity var(--motion-fast), background var(--motion-fast); }
.row-more svg { width: 15px; }
.assignment-row:hover .row-more, .assignment-row:focus-within .row-more { opacity: 1; }
.compact-density .assignment-row { min-height: 62px; padding-block: 8px; }

.course-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 13px; }
.course-card { --course-accent: var(--purple); min-height: 220px; display: flex; flex-direction: column; padding: 21px; overflow: hidden; border-radius: var(--radius-lg); cursor: pointer; transition: transform var(--motion-normal) var(--ease-out), border-color var(--motion-normal), box-shadow var(--motion-normal); }
.course-card::after { content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: linear-gradient(90deg, var(--course-accent), transparent 60%); opacity: .8; }
.course-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--course-accent) 28%, var(--border-subtle)); box-shadow: 0 18px 45px rgba(0,0,0,.22), 0 0 30px color-mix(in srgb, var(--course-accent) 10%, transparent); }
.course-card > * { position: relative; z-index: 1; }
.course-code { color: color-mix(in srgb, var(--course-accent) 70%, var(--text-secondary)); font: 9px var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.course-card h3 { margin: 11px 0 0; min-height: 44px; display: -webkit-box; overflow: hidden; font: 640 16px/1.35 var(--font-display); letter-spacing: -.02em; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.course-grade { display: flex; align-items: end; gap: 7px; margin: 23px 0 16px; }
.course-grade strong { font: 680 32px/1 var(--font-display); letter-spacing: -.04em; }
.course-grade span { padding-bottom: 3px; color: var(--text-muted); font: 9px var(--font-mono); }
.course-progress { height: 3px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.06); }
.course-progress i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--course-accent), color-mix(in srgb, var(--course-accent) 55%, #fff)); transform-origin: left; animation: progressIn .5s var(--ease-out) both; }
.course-footer { display: flex; justify-content: space-between; margin-top: auto; padding-top: 15px; color: var(--text-muted); font-size: 9px; }
.course-footer b { color: var(--text-secondary); font-weight: 550; }

.inbox-shell { min-height: 600px; display: grid; grid-template-columns: minmax(270px, 35%) 1fr; }
.conversation-column { min-width: 0; border-right: 1px solid var(--border-subtle); }
.inbox-search { margin: 13px; width: calc(100% - 26px); }
.conversation-list { max-height: 670px; overflow-y: auto; }
.conversation-row { width: 100%; display: grid; grid-template-columns: 35px minmax(0,1fr) auto; gap: 10px; padding: 14px; border-top: 1px solid var(--border-subtle); color: var(--text-secondary); background: transparent; cursor: pointer; text-align: left; transition: background var(--motion-fast); }
.conversation-row:hover, .conversation-row.active { background: rgba(255,255,255,.032); }
.conversation-row.active { box-shadow: inset 2px 0 var(--purple); }
.sender-avatar { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; color: #bba4e9; background: rgba(139,92,246,.1); font-size: 10px; font-weight: 700; }
.conversation-copy { min-width: 0; }
.conversation-copy strong, .conversation-copy span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-copy strong { color: #ddd9e4; font-size: 11px; }
.conversation-copy span { margin-top: 3px; color: var(--text-secondary); font-size: 10px; }
.conversation-copy small { display: -webkit-box; margin-top: 5px; overflow: hidden; color: var(--text-muted); font-size: 9px; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.conversation-time { color: var(--text-muted); font: 8px var(--font-mono); white-space: nowrap; }
.conversation-row.unread .conversation-copy strong::after { content: ""; display: inline-block; width: 5px; height: 5px; margin-left: 6px; border-radius: 50%; background: var(--purple-electric); box-shadow: 0 0 7px var(--purple); }
.conversation-detail { min-width: 0; display: flex; flex-direction: column; background: rgba(5,5,8,.18); }
.conversation-head { padding: 20px 24px; border-bottom: 1px solid var(--border-subtle); }
.conversation-head h3 { margin: 3px 0; font-size: 16px; }
.conversation-head p { margin: 0; color: var(--text-muted); font-size: 10px; }
.message-thread { flex: 1; max-height: 510px; overflow-y: auto; padding: 22px 24px; }
.message { max-width: 720px; margin-bottom: 22px; }
.message-head { display: flex; justify-content: space-between; gap: 15px; margin-bottom: 7px; color: var(--text-muted); font-size: 9px; }
.message-head strong { color: var(--text-secondary); }
.message-body { color: #c6c1ce; font-size: 12px; line-height: 1.7; white-space: pre-wrap; }
.reply-zone { padding: 14px 20px; border-top: 1px solid var(--border-subtle); background: rgba(11,11,17,.72); }
.reply-zone textarea { width: 100%; min-height: 90px; resize: vertical; padding: 12px; border: 1px solid var(--border-subtle); border-radius: 11px; outline: 0; color: var(--text-primary); background: rgba(4,4,7,.7); }
.reply-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 10px; color: var(--text-muted); font-size: 9px; }

.search-hero { max-width: 850px; margin: clamp(50px, 10vh, 120px) auto 0; text-align: center; transition: margin var(--motion-normal); }
.search-hero > p { margin: 8px auto 24px; }
.search-composer { height: 62px; display: flex; align-items: center; gap: 11px; padding: 8px 8px 8px 17px; border: 1px solid var(--border-strong); border-radius: 17px; background: rgba(16,15,23,.82); box-shadow: 0 22px 60px rgba(0,0,0,.24), var(--glow-purple); transition: border-color var(--motion-fast), box-shadow var(--motion-fast); }
.search-composer > svg { flex: 0 0 auto; color: var(--text-muted); }
.search-composer input { min-width: 0; height: 100%; padding: 0; border: 0; background: transparent; }
.search-composer .button { min-height: 44px; }
.search-hero.compact { max-width: none; margin: 0 0 22px; text-align: left; }
.search-hero.compact > .micro-label, .search-hero.compact > h2, .search-hero.compact > p { display: none; }
.search-workspace { display: grid; grid-template-columns: 180px minmax(0,1fr); gap: 28px; }
.search-filters { display: grid; align-content: start; gap: 3px; }
.search-filters .micro-label { padding: 8px 10px; }
.search-filters button { text-align: left; }
.search-filters button:hover, .search-filters button.active { color: var(--text-primary); background: rgba(255,255,255,.045); }
.results-head { height: 35px; color: var(--text-muted); font: 10px var(--font-mono); }
.search-results { display: grid; gap: 8px; }
.search-result { display: grid; grid-template-columns: 38px minmax(0,1fr) auto; gap: 13px; padding: 15px; border-radius: 13px; transition: border-color var(--motion-fast), transform var(--motion-fast), background var(--motion-fast); }
.search-result:hover { transform: translateY(-1px); border-color: var(--border-purple); background: var(--surface-2); }
.result-icon { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 10px; color: #a98cdf; background: rgba(139,92,246,.075); }
.result-icon svg { width: 17px; }
.result-copy { min-width: 0; }
.result-copy h3 { margin: 0; font-size: 12px; }
.result-copy p { margin: 5px 0 0; overflow: hidden; color: var(--text-muted); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.result-copy mark { padding: 0 2px; border-radius: 3px; color: #e6d9ff; background: rgba(139,92,246,.22); }
.result-type { color: var(--text-muted); font: 8px var(--font-mono); text-transform: uppercase; }

.ask-view { max-width: 930px; margin: 0 auto; padding-bottom: 105px; }
.ask-intro { min-height: 410px; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; }
.ask-intro h2 { margin-top: 9px; }
.ask-intro > p { margin: 1px 0 25px; }
.intelligence-glyph { position: relative; width: 44px; height: 44px; display: grid; place-items: center; border: 1px solid rgba(192,132,252,.22); border-radius: 50%; background: radial-gradient(circle, rgba(192,132,252,.34), rgba(139,92,246,.07) 42%, transparent 65%); box-shadow: 0 0 42px rgba(139,92,246,.22), inset 0 0 17px rgba(192,132,252,.14); }
.intelligence-glyph::before { content: ""; position: absolute; inset: 7px; border: 1px solid rgba(192,132,252,.25); border-radius: 50%; }
.intelligence-glyph span { position: absolute; width: 5px; height: 5px; border-radius: 50%; background: #d8b4fe; box-shadow: 0 0 9px #a855f7; }
.intelligence-glyph span:nth-child(1) { transform: translateY(-8px); }
.intelligence-glyph span:nth-child(2) { transform: translate(-7px,6px); }
.intelligence-glyph span:nth-child(3) { transform: translate(7px,6px); }
.intelligence-glyph span::after { content: ""; position: absolute; width: 1px; height: 13px; left: 2px; top: 2px; transform-origin: top; background: linear-gradient(#d8b4fe, transparent); }
.intelligence-glyph span:nth-child(1)::after { transform: rotate(150deg); }
.intelligence-glyph span:nth-child(2)::after { transform: rotate(-90deg); }
.intelligence-glyph span:nth-child(3)::after { transform: rotate(90deg); }
.hero-glyph { width: 74px; height: 74px; margin-bottom: 21px; animation: glyphBreathe 5s ease-in-out infinite; }
.hero-glyph::after { content: ""; position: absolute; inset: -16px; border: 1px solid rgba(139,92,246,.08); border-radius: 50%; }
.hero-glyph span { transform: scale(1.25); }
.hero-glyph span:nth-child(1) { transform: translateY(-12px) scale(1.25); }
.hero-glyph span:nth-child(2) { transform: translate(-11px,9px) scale(1.25); }
.hero-glyph span:nth-child(3) { transform: translate(11px,9px) scale(1.25); }
.suggestion-grid { width: 100%; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
.suggestion-grid button { min-height: 58px; display: grid; grid-template-columns: 25px 1fr 18px; align-items: center; gap: 7px; padding: 0 15px; border: 1px solid var(--border-subtle); border-radius: 12px; color: var(--text-secondary); background: rgba(255,255,255,.025); cursor: pointer; text-align: left; font-size: 11px; transition: transform var(--motion-fast), border-color var(--motion-fast), color var(--motion-fast), background var(--motion-fast); }
.suggestion-grid button:hover { transform: translateY(-2px); color: var(--text-primary); border-color: var(--border-purple); background: rgba(139,92,246,.05); }
.suggestion-grid button > span { color: #6f657e; font: 8px var(--font-mono); }
.suggestion-grid svg { width: 15px; transition: transform var(--motion-fast); }
.suggestion-grid button:hover svg { transform: translateX(2px); color: var(--purple-electric); }
.ask-intro.condensed { min-height: 100px; flex-direction: row; justify-content: flex-start; gap: 12px; text-align: left; }
.ask-intro.condensed .hero-glyph { width: 42px; height: 42px; margin: 0; }
.ask-intro.condensed > .micro-label, .ask-intro.condensed > p, .ask-intro.condensed .suggestion-grid { display: none; }
.ask-intro.condensed h2 { margin: 0; font-size: 20px; }
.ask-thread { display: grid; gap: 24px; }
.user-message { max-width: 76%; margin-left: auto; padding: 12px 15px; border: 1px solid rgba(168,85,247,.18); border-radius: 15px 15px 4px 15px; color: #eee8f8; background: rgba(139,92,246,.1); line-height: 1.55; animation: messageIn var(--motion-normal) var(--ease-out); }
.assistant-message { display: grid; grid-template-columns: 30px minmax(0,1fr); gap: 13px; animation: messageIn var(--motion-normal) var(--ease-out); }
.assistant-symbol { width: 29px; height: 29px; display: grid; place-items: center; border: 1px solid rgba(168,85,247,.16); border-radius: 9px; color: var(--purple-electric); background: rgba(139,92,246,.06); }
.assistant-symbol svg { width: 15px; }
.assistant-content { max-width: 760px; color: #cbc7d2; font-size: 13px; line-height: 1.72; }
.assistant-content h2 { margin: 0 0 12px; color: var(--text-primary); font: 660 19px var(--font-display); letter-spacing: -.025em; }
.assistant-content h3 { margin: 20px 0 8px; color: var(--text-primary); font-size: 15px; }
.assistant-content h4 { margin: 15px 0 7px; color: #e2dce9; font-size: 13px; }
.assistant-content p { margin: 0 0 12px; }
.assistant-content ul, .assistant-content ol { margin: 8px 0 14px; padding-left: 21px; }
.assistant-content li { margin: 5px 0; padding-left: 3px; }
.assistant-content strong { color: #f0ecf4; }
.assistant-content code { padding: 2px 5px; border: 1px solid var(--border-subtle); border-radius: 5px; color: #d6bcfa; background: rgba(255,255,255,.04); font: 11px var(--font-mono); }
.assistant-content a { color: #c8a7fa; text-decoration-color: rgba(200,167,250,.35); }
.assistant-content blockquote { margin: 13px 0; padding: 10px 13px; border-left: 2px solid var(--purple); color: var(--text-secondary); background: rgba(139,92,246,.045); }
.ai-references { display: grid; gap: 7px; margin: 10px 0 19px; }
.ai-reference { position: relative; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 18px; align-items: center; padding: 12px 13px 12px 16px; overflow: hidden; border: 1px solid var(--border-subtle); border-radius: 11px; background: rgba(255,255,255,.022); cursor: pointer; transition: transform var(--motion-fast), border-color var(--motion-fast), background var(--motion-fast); }
.ai-reference::before { content: ""; position: absolute; inset: 12px auto 12px 0; width: 2px; border-radius: 3px; background: var(--priority-color, var(--purple)); box-shadow: 0 0 10px color-mix(in srgb, var(--priority-color, var(--purple)) 35%, transparent); }
.ai-reference:hover { transform: translateY(-1px); border-color: color-mix(in srgb, var(--priority-color, var(--purple)) 28%, var(--border-subtle)); background: rgba(255,255,255,.035); }
.ai-reference > div { min-width: 0; display: grid; gap: 3px; }
.ai-reference strong { overflow: hidden; color: #e4e0e9; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.ai-reference span { overflow: hidden; color: var(--text-muted); font-size: 9px; text-overflow: ellipsis; white-space: nowrap; }
.ai-reference small { color: var(--text-secondary); font: 8px/1.65 var(--font-mono); text-align: right; white-space: nowrap; }
.markdown-table-wrap { max-width: 100%; margin: 12px 0; overflow-x: auto; border: 1px solid var(--border-subtle); border-radius: 10px; }
.assistant-content table { width: 100%; border-collapse: collapse; font-size: 11px; }
.assistant-content th, .assistant-content td { padding: 9px 11px; border-bottom: 1px solid var(--border-subtle); text-align: left; }
.assistant-content th { color: var(--text-secondary); background: rgba(255,255,255,.025); }
.assistant-meta { margin-top: 12px; color: var(--text-muted); font: 8px var(--font-mono); text-transform: uppercase; }
.thinking-state { display: flex; align-items: center; gap: 12px; color: var(--text-secondary); }
.thinking-state .intelligence-glyph { width: 29px; height: 29px; animation: glyphBreathe 1.3s ease-in-out infinite; }
.thinking-copy { min-width: 150px; }
.thinking-copy span { display: block; font-size: 11px; }
.thinking-line { height: 2px; margin-top: 7px; overflow: hidden; border-radius: 4px; background: rgba(255,255,255,.04); }
.thinking-line::after { content: ""; display: block; width: 55%; height: 100%; background: linear-gradient(90deg, transparent, var(--purple-electric), transparent); animation: thinking 1.1s ease-in-out infinite; }
.ai-composer { position: sticky; bottom: 15px; z-index: 9; margin-top: 25px; padding: 13px 14px 9px; border: 1px solid var(--border-strong); border-radius: 18px; background: rgba(18,17,25,.88); box-shadow: 0 25px 60px rgba(0,0,0,.36), 0 0 36px rgba(139,92,246,.08); backdrop-filter: blur(22px); transition: border-color var(--motion-fast), box-shadow var(--motion-fast); }
.ai-composer textarea { min-height: 37px; max-height: 150px; resize: none; padding: 6px 2px; border: 0; background: transparent; line-height: 1.5; }
.composer-foot { display: flex; align-items: center; justify-content: space-between; gap: 14px; color: var(--text-muted); font-size: 9px; }
.send-button { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 10px; color: #fff; background: linear-gradient(145deg, var(--purple), var(--purple-bright)); box-shadow: 0 8px 20px rgba(139,92,246,.26); cursor: pointer; transition: transform var(--motion-fast), filter var(--motion-fast); }
.send-button:hover { transform: translateY(-1px); filter: brightness(1.08); }
.send-button:active { transform: scale(.96); }
.send-button svg { width: 16px; }

.analytics-metrics { margin-bottom: 16px; }
.analytics-grid, .system-lower { display: grid; grid-template-columns: 1.2fr .8fr; gap: 16px; }
.bar-chart { height: 300px; display: flex; align-items: end; gap: 9px; padding: 28px 22px 20px; }
.chart-column { height: 100%; flex: 1; display: flex; flex-direction: column; justify-content: end; align-items: center; gap: 8px; }
.chart-bar { width: min(38px,70%); min-height: 3px; border-radius: 6px 6px 2px 2px; background: linear-gradient(var(--purple-electric), var(--purple-deep)); box-shadow: 0 0 17px rgba(139,92,246,.12); animation: barRise .5s var(--ease-out) both; }
.chart-column strong { color: var(--text-secondary); font: 9px var(--font-mono); }
.chart-column small { color: var(--text-muted); font: 8px var(--font-mono); text-transform: uppercase; }
.grade-chart { display: grid; gap: 16px; padding: 25px 22px; }
.grade-row { display: grid; grid-template-columns: minmax(100px,1fr) minmax(80px,1.3fr) 38px; gap: 10px; align-items: center; }
.grade-row span { overflow: hidden; color: var(--text-secondary); font-size: 10px; text-overflow: ellipsis; white-space: nowrap; }
.grade-track { height: 4px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.05); }
.grade-track i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--purple-deep), var(--purple-electric)); animation: progressIn .5s var(--ease-out); transform-origin: left; }
.grade-row strong { color: var(--text-secondary); font: 10px var(--font-mono); text-align: right; }

.system-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 11px; margin-bottom: 16px; }
.system-card { min-height: 108px; padding: 17px; border: 1px solid var(--border-subtle); border-radius: 14px; background: linear-gradient(145deg, rgba(18,18,27,.9), rgba(11,11,17,.92)); }
.system-card-head { display: flex; align-items: center; justify-content: space-between; color: var(--text-muted); font: 9px var(--font-mono); text-transform: uppercase; }
.system-card h3 { margin: 16px 0 3px; font: 620 15px var(--font-display); }
.system-card p { margin: 0; color: var(--text-muted); font-size: 9px; }
.status-label.success { color: var(--green); --priority-color: var(--green); }
.status-label.purple { color: var(--purple-electric); --priority-color: var(--purple); }
.status-label.warning { color: var(--amber); --priority-color: var(--amber); }
.status-label.error { color: var(--red); --priority-color: var(--red); }
.usage-content { padding: 23px; }
.usage-total { display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.usage-total strong { font: 680 31px var(--font-display); letter-spacing: -.04em; }
.usage-total span { color: var(--text-muted); font-size: 10px; }
.usage-track { height: 5px; margin: 17px 0 11px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.055); }
.usage-track i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--purple-deep), var(--purple-electric)); box-shadow: 0 0 12px rgba(139,92,246,.3); transition: width .5s var(--ease-out); }
.usage-stats { display: flex; gap: 18px; color: var(--text-muted); font: 9px var(--font-mono); }
.runtime-summary { display: grid; gap: 0; padding: 10px 20px; }
.runtime-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 13px 0; border-bottom: 1px solid var(--border-subtle); color: var(--text-muted); font-size: 10px; }
.runtime-row:last-child { border-bottom: 0; }
.runtime-row strong { color: var(--text-secondary); font-weight: 570; }

.settings-layout { display: grid; grid-template-columns: 170px minmax(0,820px); gap: 30px; align-items: start; }
.settings-nav { position: sticky; top: 105px; display: grid; gap: 3px; }
.settings-nav button { text-align: left; }
.settings-nav button:hover, .settings-nav button.active { color: var(--text-primary); background: rgba(255,255,255,.045); }
.settings-nav button.active { box-shadow: inset 2px 0 var(--purple); }
.settings-panels { display: grid; gap: 13px; }
.settings-section { scroll-margin-top: 100px; }
.settings-section > header { padding: 18px 20px; border-bottom: 1px solid var(--border-subtle); }
.setting-row { min-height: 70px; display: flex; align-items: center; justify-content: space-between; gap: 30px; padding: 14px 20px; border-bottom: 1px solid var(--border-subtle); }
.setting-row:last-child { border-bottom: 0; }
.setting-row > span:first-child { display: grid; }
.setting-row strong { color: #d9d5e0; font-size: 11px; }
.setting-row small { margin-top: 3px; color: var(--text-muted); font-size: 9px; }
select { width: 160px; height: 36px; padding: 0 10px; border-radius: 9px; }
.switch { appearance: none; position: relative; width: 36px; height: 20px; flex: 0 0 auto; border: 1px solid var(--border-strong); border-radius: 99px; background: #22202a; cursor: pointer; transition: background var(--motion-fast), border-color var(--motion-fast); }
.switch::after { content: ""; position: absolute; width: 14px; height: 14px; left: 2px; top: 2px; border-radius: 50%; background: #7a7683; transition: transform var(--motion-fast) var(--ease-out), background var(--motion-fast); }
.switch:checked { border-color: rgba(168,85,247,.5); background: rgba(139,92,246,.32); }
.switch:checked::after { transform: translateX(16px); background: var(--purple-electric); box-shadow: 0 0 9px rgba(168,85,247,.5); }
.toggle-list .setting-row:last-child { border-bottom: 0; }
.settings-actions { display: flex; align-items: center; justify-content: end; gap: 15px; padding-top: 4px; color: var(--text-muted); font-size: 10px; }

.empty-state { min-height: 240px; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 30px; color: var(--text-muted); text-align: center; }
.empty-state.compact { min-height: 300px; }
.empty-state h3 { margin: 13px 0 3px; color: var(--text-secondary); font-size: 13px; }
.empty-state p { max-width: 34ch; margin: 0; font-size: 10px; }
.empty-icon { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--border-subtle); border-radius: 13px; color: #625d6b; background: rgba(255,255,255,.02); }
.empty-icon svg { width: 18px; }

.overlay, .drawer-shell { position: fixed; inset: 0; z-index: var(--z-overlay); }
.overlay { display: grid; place-items: start center; padding: 12vh 20px 20px; background: rgba(2,2,4,.7); backdrop-filter: blur(12px); animation: overlayIn var(--motion-fast) ease-out; }
.command-panel { width: min(650px,100%); overflow: hidden; border: 1px solid var(--border-strong); border-radius: 17px; background: rgba(16,15,23,.97); box-shadow: var(--shadow-float), 0 0 80px rgba(139,92,246,.1); animation: modalIn var(--motion-normal) var(--ease-out); }
.command-panel > header { height: 60px; display: flex; align-items: center; gap: 12px; padding: 0 15px; border-bottom: 1px solid var(--border-subtle); color: var(--text-muted); }
.command-panel > header svg { width: 19px; }
.command-panel input { height: 100%; padding: 0; border: 0; background: transparent; font-size: 14px; }
.command-results { max-height: 410px; overflow-y: auto; padding: 7px; }
.command-group-label { padding: 9px 10px 6px; color: var(--text-muted); font: 8px var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.command-item { width: 100%; min-height: 44px; display: grid; grid-template-columns: 28px 1fr auto; align-items: center; gap: 9px; padding: 0 10px; border-radius: 10px; color: var(--text-secondary); background: transparent; cursor: pointer; text-align: left; }
.command-item.active, .command-item:hover { color: var(--text-primary); background: rgba(139,92,246,.09); }
.command-item svg { width: 16px; color: #9b80d3; }
.command-item small { color: var(--text-muted); font: 8px var(--font-mono); }
.command-panel > footer { height: 38px; display: flex; align-items: center; gap: 20px; padding: 0 13px; border-top: 1px solid var(--border-subtle); color: var(--text-muted); font-size: 8px; }
.command-panel footer span { display: flex; align-items: center; gap: 5px; }
.command-panel footer kbd { height: 17px; min-width: 18px; }

.drawer-shell { display: flex; justify-content: end; }
.drawer-backdrop { position: absolute; inset: 0; background: rgba(2,2,4,.63); backdrop-filter: blur(7px); cursor: default; animation: overlayIn var(--motion-fast); }
.detail-drawer { position: relative; z-index: 1; width: min(620px, calc(100% - 25px)); height: 100%; display: flex; flex-direction: column; border-left: 1px solid var(--border-strong); background: rgba(12,12,18,.98); box-shadow: -30px 0 80px rgba(0,0,0,.4); animation: drawerIn var(--motion-normal) var(--ease-out); }
.drawer-head { display: flex; align-items: start; justify-content: space-between; gap: 20px; padding: 25px 25px 20px; }
.drawer-head h2 { max-width: 520px; margin: 7px 0 0; font: 660 clamp(20px,3vw,27px)/1.2 var(--font-display); letter-spacing: -.035em; overflow-wrap: anywhere; }
.drawer-tabs { display: flex; gap: 4px; padding: 0 20px 10px; border-bottom: 1px solid var(--border-subtle); }
.drawer-tabs button:hover, .drawer-tabs button.active { color: var(--text-primary); background: rgba(255,255,255,.045); }
.drawer-tabs button.active { box-shadow: inset 0 -2px var(--purple); }
.drawer-body { flex: 1; overflow-y: auto; padding: 23px 25px 40px; }
.detail-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: 8px; margin-bottom: 24px; }
.detail-metric { min-width: 0; padding: 12px; border: 1px solid var(--border-subtle); border-radius: 11px; background: rgba(255,255,255,.025); }
.detail-metric span { display: block; color: var(--text-muted); font: 8px var(--font-mono); text-transform: uppercase; }
.detail-metric strong { display: block; margin-top: 5px; overflow: hidden; color: #d9d5e0; font-size: 11px; text-overflow: ellipsis; white-space: nowrap; }
.drawer-section { margin-top: 24px; }
.drawer-section h3 { margin: 0 0 9px; color: #e1dce7; font-size: 13px; }
.drawer-section p { color: var(--text-secondary); font-size: 12px; line-height: 1.7; white-space: pre-wrap; }
.history-item { padding: 12px 0; border-bottom: 1px solid var(--border-subtle); }
.history-item strong { color: var(--text-secondary); font-size: 10px; }
.history-item p { margin: 3px 0 0; color: var(--text-muted); font-size: 9px; }

.mobile-nav, .mobile-more-overlay { display: none; }
.toast-region { position: fixed; right: 20px; bottom: 20px; z-index: var(--z-toast); display: grid; gap: 8px; width: min(350px,calc(100% - 30px)); pointer-events: none; }
.toast { display: grid; grid-template-columns: 28px minmax(0,1fr) 20px; gap: 10px; align-items: center; padding: 12px; border: 1px solid var(--border-strong); border-radius: 13px; color: var(--text-primary); background: rgba(18,17,25,.97); box-shadow: var(--shadow-float); backdrop-filter: blur(18px); animation: toastIn var(--motion-normal) var(--ease-out); pointer-events: auto; }
.toast-icon { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 9px; color: var(--purple-electric); background: rgba(139,92,246,.09); }
.toast.success .toast-icon { color: var(--green); background: rgba(64,209,138,.08); }
.toast.error .toast-icon { color: var(--red); background: rgba(255,94,108,.08); }
.toast-copy strong, .toast-copy small { display: block; }
.toast-copy strong { font-size: 11px; }
.toast-copy small { margin-top: 2px; color: var(--text-muted); font-size: 9px; }
.toast-close { width: 20px; height: 20px; color: var(--text-muted); background: transparent; cursor: pointer; }

@keyframes viewIn { from { opacity: 0; transform: translateY(7px); } }
@keyframes cardIn { from { opacity: 0; transform: translateY(9px); } }
@keyframes overlayIn { from { opacity: 0; } }
@keyframes modalIn { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@keyframes drawerIn { from { transform: translateX(100%); } }
@keyframes dropdownIn { from { opacity: 0; transform: translateY(5px); } }
@keyframes toastIn { from { opacity: 0; transform: translateY(8px) scale(.98); } }
@keyframes messageIn { from { opacity: 0; transform: translateY(7px); } }
@keyframes barRise { from { transform: scaleY(.05); opacity: .3; } }
@keyframes progressIn { from { transform: scaleX(0); } }
@keyframes shimmer { to { background-position: -120% 0; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes syncComplete { 50% { transform: scale(1.2); } }
@keyframes glyphBreathe { 0%,100% { transform: scale(1); box-shadow: 0 0 36px rgba(139,92,246,.18), inset 0 0 17px rgba(192,132,252,.12); } 50% { transform: scale(1.035); box-shadow: 0 0 48px rgba(139,92,246,.27), inset 0 0 20px rgba(192,132,252,.18); } }
@keyframes thinking { from { transform: translateX(-100%); } to { transform: translateX(190%); } }

@media (max-width: 1120px) {
  .metric-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .overview-grid { grid-template-columns: 1fr; }
  .overview-side { grid-template-columns: 1fr 1fr; }
  .course-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .assignment-row { grid-template-columns: minmax(220px,1fr) 135px 80px 95px; }
  .assignment-row .row-more { display: none; }
  .system-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 900px) {
  :root { --sidebar-width: 76px; }
  .sidebar { width: 76px; }
  .sidebar .brand-copy, .sidebar .nav-item > span, .sidebar .nav-section-label, .sidebar .profile-copy, .sidebar .profile-button > svg, .sidebar .nav-count, .sidebar .ai-pulse, .collapse-button { display: none; }
  .sidebar-head { justify-content: center; padding: 0; }
  .nav-item { justify-content: center; padding: 0; }
  .profile-button { justify-content: center; }
  .topbar { grid-template-columns: 1fr minmax(240px,380px) auto; }
  .settings-layout { grid-template-columns: 130px minmax(0,1fr); gap: 18px; }
  .inbox-shell { grid-template-columns: 300px 1fr; }
}

@media (max-width: 760px) {
  .ambient::after { opacity: .12; background-size: 36px 36px; }
  .app-shell { padding-bottom: 70px; }
  .sidebar { display: none; }
  .workspace, .sidebar.collapsed + .workspace { margin-left: 0; }
  .topbar { position: sticky; height: 64px; grid-template-columns: 1fr auto; padding: 0 15px; }
  .topbar-title .micro-label, .command-launcher, .sync-button span, .top-profile { display: none; }
  .topbar-title h1 { margin: 0; font-size: 17px; }
  .topbar-actions { grid-column: 2; }
  .content { padding: 24px 14px 40px; }
  .page-heading, .overview-intro { align-items: start; margin-bottom: 22px; }
  .mobile-hidden { display: none; }
  .metric-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 8px; }
  .metric-card { min-height: 104px; gap: 11px; padding: 13px; }
  .metric-icon { width: 33px; height: 33px; }
  .metric-card strong { font-size: 24px; }
  .metric-card small { font-size: 8px; }
  .overview-side { grid-template-columns: 1fr; }
  .attention-row { grid-template-columns: minmax(0,1fr); gap: 9px; min-height: 105px; }
  .attention-meta { justify-content: space-between; text-align: left; }
  .attention-meta .priority-label { order: -1; }
  .filter-toolbar { display: grid; }
  .segmented-control { order: 2; margin: 0 -2px; }
  .inline-search { width: 100%; }
  .assignment-row { min-height: 88px; grid-template-columns: minmax(0,1fr) auto; gap: 10px; padding: 14px 14px 14px 18px; }
  .assignment-row > .row-meta:nth-of-type(2), .assignment-row > .row-meta:nth-of-type(3), .assignment-row .row-more { display: none; }
  .assignment-row .priority-label { align-self: center; }
  .course-grid { grid-template-columns: 1fr; }
  .course-card { min-height: 195px; }
  .inbox-shell { min-height: 530px; grid-template-columns: 1fr; }
  .conversation-column { border-right: 0; }
  .conversation-detail { position: absolute; inset: 0; z-index: 2; display: none; background: var(--surface-1); }
  .inbox-shell.show-detail .conversation-column { display: none; }
  .inbox-shell.show-detail .conversation-detail { position: relative; display: flex; }
  .search-hero { margin-top: 50px; }
  .search-composer { height: auto; min-height: 58px; flex-wrap: wrap; }
  .search-composer kbd { display: none; }
  .search-composer .button { width: 100%; }
  .search-workspace { grid-template-columns: 1fr; gap: 14px; }
  .search-filters { display: flex; overflow-x: auto; }
  .search-filters .micro-label { display: none; }
  .search-result { grid-template-columns: 34px minmax(0,1fr); }
  .result-type { display: none; }
  .ask-intro { min-height: 360px; }
  .suggestion-grid { grid-template-columns: 1fr; }
  .suggestion-grid button:nth-child(n+4) { display: none; }
  .user-message { max-width: 90%; }
  .assistant-message { grid-template-columns: 26px minmax(0,1fr); gap: 9px; }
  .assistant-symbol { width: 25px; height: 25px; }
  .ai-reference { grid-template-columns: 1fr; gap: 6px; }
  .ai-reference small { text-align: left; }
  .ai-composer { bottom: 75px; }
  .analytics-grid, .system-lower { grid-template-columns: 1fr; }
  .bar-chart { height: 250px; }
  .system-grid { grid-template-columns: 1fr 1fr; }
  .settings-layout { grid-template-columns: 1fr; gap: 14px; }
  .settings-nav { position: static; display: flex; overflow-x: auto; }
  .setting-row { gap: 14px; }
  select { width: 125px; }
  .detail-drawer { width: 100%; }
  .detail-metrics { grid-template-columns: 1fr 1fr; }
  .mobile-nav { position: fixed; inset: auto 8px 8px; z-index: 45; height: 60px; display: grid; grid-template-columns: repeat(4,1fr); padding: 5px; border: 1px solid var(--border-strong); border-radius: 17px; background: rgba(15,14,21,.92); box-shadow: 0 15px 45px rgba(0,0,0,.42); backdrop-filter: blur(22px); }
  .mobile-nav button { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; border-radius: 11px; color: var(--text-muted); background: transparent; font-size: 8px; }
  .mobile-nav button.active { color: var(--text-primary); background: rgba(139,92,246,.11); }
  .mobile-nav svg { width: 18px; height: 18px; }
  .mobile-more-overlay { display: flex; align-items: end; padding: 0; }
  .mobile-more-sheet { width: 100%; padding: 10px 15px 20px; border-top: 1px solid var(--border-strong); border-radius: 20px 20px 0 0; background: rgba(18,17,25,.98); animation: sheetIn var(--motion-normal) var(--ease-out); }
  .sheet-handle { width: 36px; height: 3px; display: block; margin: 0 auto 16px; border-radius: 4px; background: #4b4653; }
  .mobile-more-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 7px; margin-bottom: 13px; }
  .mobile-more-grid button { min-height: 58px; border: 1px solid var(--border-subtle); border-radius: 11px; color: var(--text-secondary); background: rgba(255,255,255,.025); }
  .toast-region { right: 15px; bottom: 78px; }
  [data-tooltip]::after { display: none; }
  @keyframes sheetIn { from { transform: translateY(100%); } }
}

@media (max-width: 430px) {
  .login-card { padding: 28px 22px; }
  .metric-card { display: grid; gap: 8px; }
  .metric-icon { width: 30px; height: 30px; }
  .week-timeline { padding-inline: 10px; gap: 3px; }
  .system-grid { grid-template-columns: 1fr; }
  .setting-row { align-items: flex-start; }
  .setting-row select { margin-top: 2px; }
}

@media (hover: none) {
  .panel::before, .metric-card::before, .course-card::before { display: none; }
  .row-more { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .ambient i, .spotlight-card::after, .panel::before, .metric-card::before, .course-card::before { display: none; }
}

body.effects-reduced .ambient i,
body.effects-reduced .spotlight-card::after,
body.effects-reduced .panel::before,
body.effects-reduced .metric-card::before,
body.effects-reduced .course-card::before { display: none; }