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rgba(255,255,255,.6);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg)}[data-theme=glass] .showcase-bar{background:#00000008;border-bottom:.5px solid rgba(0,0,0,.06)}[data-theme=glass] .showcase-dot{background:#0000001f}[data-theme=glass] .showcase-msg.tutor{background:#0000000a;border:.5px solid rgba(0,0,0,.06);border-radius:14px}[data-theme=glass] .showcase-msg.tutor.hint{border-left:3px solid var(--accent);background:var(--accent-soft)}[data-theme=glass] .showcase-msg.tutor.success{background:var(--ok-soft);border:.5px solid rgba(48,209,88,.3)}[data-theme=glass] .showcase-msg.learner{background:var(--accent);border-radius:14px}[data-theme=glass] .landing-feature{background:var(--surface);backdrop-filter:blur(20px) saturate(180%);-webkit-backdrop-filter:blur(20px) saturate(180%);border:.5px solid rgba(255,255,255,.6);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}[data-theme=glass] 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saturate(180%);border:.5px solid rgba(255,255,255,.6)}[data-theme=glass] .i18n-dropdown-item:hover{background:#0071e314}[data-theme=glass] .i18n-hover,[data-theme=glass] .i18n-has-tooltip{border-bottom-color:var(--muted)}[data-theme=glass] *{transition:background .3s cubic-bezier(.25,.1,.25,1),border-color .3s cubic-bezier(.25,.1,.25,1),box-shadow .3s cubic-bezier(.25,.1,.25,1),color .2s cubic-bezier(.25,.1,.25,1)}[data-theme=dark]{--paper: #1a1a1e;--paper-2: #222226;--surface: #28282d;--ink: #e4e2dc;--ink-2: #b8b5ac;--muted: #7a776d;--rule: #3a3a40;--rule-soft: #2e2e34;--accent: #5fa88f;--accent-soft: rgba(95, 168, 143, .15);--warn: #e0794a;--warn-soft: rgba(224, 121, 74, .15);--ok: #8bb95e;--ok-soft: rgba(139, 185, 94, .15);--font-display: "Instrument Serif", serif;--font-body: "Newsreader", serif;--font-mono: "JetBrains Mono", monospace;--radius: 6px;--radius-lg: 10px;--radius-xl: 14px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .25);--shadow-md: 0 4px 12px rgba(0, 0, 0, .3);--shadow-lg: 0 8px 24px rgba(0, 0, 0, .35);--transition: .2s ease;--transition-slow: .4s ease;color-scheme:dark}[data-theme=dark] body{background:var(--paper);color:var(--ink)}[data-theme=dark] .header{background:var(--surface);border-bottom-color:var(--rule)}[data-theme=dark] .btn{background:var(--surface);border-color:var(--rule);color:var(--ink-2)}[data-theme=dark] .btn:hover{background:var(--paper-2);border-color:var(--muted)}[data-theme=dark] .btn-primary{background:var(--accent);border-color:var(--accent);color:#111}[data-theme=dark] .btn-primary:hover{background:#4e9078;border-color:#4e9078}[data-theme=dark] .btn-danger{color:var(--warn);border-color:var(--warn-soft)}[data-theme=dark] .btn-danger:hover{background:var(--warn-soft)}[data-theme=dark] .login-card{background:var(--surface);border-color:var(--rule)}[data-theme=dark] .login-brand h1{color:var(--accent)}[data-theme=dark] .oauth-btn{background:var(--surface);border-color:var(--rule);color:var(--ink)}[data-theme=dark] 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.chat-composer{background:var(--paper);border-top-color:var(--rule)}[data-theme=dark] .chat-composer input{background:var(--surface);border-color:var(--rule);color:var(--ink)}[data-theme=dark] .chat-composer input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #5fa88f33}[data-theme=dark] .chat-composer button{background:var(--accent);color:#111}[data-theme=dark] .chat-composer button:hover{background:#4e9078}[data-theme=dark] .scope-panel{background:var(--surface);border-color:var(--rule)}[data-theme=dark] .scope-panel-title{border-bottom-color:var(--rule)}[data-theme=dark] .expectation-dot{border-color:var(--muted)}[data-theme=dark] .expectation-dot.current{border-color:var(--accent);background:var(--accent);box-shadow:0 0 0 3px #5fa88f33}[data-theme=dark] .expectation-dot.met{border-color:var(--ok);background:var(--ok)}[data-theme=dark] .coverage-bar{background:var(--rule)}[data-theme=dark] .coverage-bar-fill{background:var(--accent)}[data-theme=dark] 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