@import"https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,600&family=IBM+Plex+Mono:wght@500&family=Space+Grotesk:wght@400;500;600&display=swap";:root{color-scheme:light;--ink: #17120f;--muted: #6a5f57;--accent: #e15a2f;--accent-dark: #b44825;--surface: #ffffff;--panel: #fff7ee;--border: #ead9c8;--shadow: 0 20px 60px rgba(23, 18, 15, .15)}*,*:before,*:after{box-sizing:border-box}body{margin:0;font-family:Space Grotesk,sans-serif;background:radial-gradient(circle at top,#fff4e6,#f6efe6 42%,#f1e9df);color:var(--ink);min-height:100vh}main{min-height:100vh;padding:72px 24px;display:flex;flex-direction:column;gap:36px;align-items:center}.hero{max-width:640px;text-align:center;display:grid;gap:12px}.hero-top{display:flex;align-items:center;justify-content:space-between;gap:16px}.hero h1{font-family:Fraunces,serif;font-size:clamp(2.4rem,4vw,3.4rem);margin:0}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.7rem;font-weight:600;color:var(--accent-dark);margin:0}.subhead{margin:0;color:var(--muted);font-size:1rem}.panel{width:min(720px,100%);background:var(--panel);border:1px solid var(--border);border-radius:24px;padding:32px;box-shadow:var(--shadow)}.auth-panel{text-align:center;display:grid;gap:16px}.instructor-panel,.student-assignments-panel,.practice-panel{display:grid;gap:16px}.admin-panel{display:grid;gap:24px}.header-actions{display:flex;align-items:center;gap:8px}.instructor-list{display:grid;gap:12px}.instructor-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--border)}.instructor-row:last-child{border-bottom:none}.instructor-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}.assignment-form select{padding:10px 14px;border:1px solid var(--border);border-radius:10px;font-size:1rem;background:var(--bg);color:var(--text)}.label-hint{font-weight:400;color:var(--muted);font-size:.85rem}.assignment-list{display:grid;gap:0}.assignment-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--border)}.assignment-row:last-child{border-bottom:none}.assignment-info{display:grid;gap:4px}.assignment-name{margin:0;font-weight:600}.assignment-token{font-size:.8rem;color:var(--muted);white-space:nowrap}.done-button{padding:10px 20px;border-radius:10px;font-size:.95rem;font-weight:600;border:1px solid var(--border);background:transparent;color:var(--muted);cursor:default;white-space:nowrap}.assignment-context{padding:12px 16px;background:var(--bg);border:1px solid var(--border);border-radius:10px;display:grid;gap:4px}input[type=file]{padding:10px 14px;border:1px solid var(--border);border-radius:10px;font-size:1rem;background:var(--bg);color:var(--text);cursor:pointer}.repo-form{display:grid;gap:16px}label{font-weight:600}input[type=url]{width:100%;padding:14px 16px;border-radius:14px;border:1px solid var(--border);font-size:1rem;background:var(--surface);color:var(--ink)}input[type=url]:focus{outline:2px solid rgba(225,90,47,.35);border-color:var(--accent)}button{border:none;border-radius:999px;padding:12px 20px;font-size:.95rem;font-weight:600;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}button:disabled{cursor:not-allowed;opacity:.6;transform:none}.primary{background:var(--accent);color:#fff7f0;box-shadow:0 12px 24px #e15a2f4d}.primary:hover:not(:disabled){background:var(--accent-dark);transform:translateY(-1px)}.ghost{background:transparent;border:1px solid var(--border);color:var(--ink)}.ghost.danger{color:#c0392b;border-color:#c0392b}.ghost.danger:hover{background:#c0392b;color:#fff}.link-button{text-decoration:none;text-align:center;padding:12px 20px;border-radius:999px;font-weight:600;display:inline-flex;align-items:center;justify-content:center}.error{color:#9a2b1e;margin:0;font-weight:500}.warning{color:#a35d0d;margin:0;font-weight:500;font-size:.95rem}.ready-state{display:grid;gap:20px}.ready-state h2{margin:0;font-size:1.6rem}.question-state{display:grid;gap:24px}.question-header{display:grid;gap:16px}.question-summary{display:grid;gap:8px;color:var(--muted)}.badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border-radius:999px;padding:6px 14px;border:1px solid var(--border);font-weight:600;color:var(--accent-dark);width:fit-content}.badge.warning{background:#fef3cd;border-color:#f0c36d;color:#a35d0d}.actions{display:flex;flex-wrap:wrap;gap:12px}.question-list{display:grid;gap:20px}.question-card{background:var(--surface);border-radius:20px;padding:20px;border:1px solid var(--border);display:grid;gap:12px}.question-card h3{margin:0;font-size:1.1rem}.question-meta{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.snippet{background:#17120f;color:#f7eee5;padding:16px;border-radius:12px;font-size:.85rem;overflow-x:auto}textarea{width:100%;border-radius:14px;border:1px solid var(--border);padding:12px 14px;font-size:1rem;font-family:inherit;resize:vertical;background:#fffaf4}textarea:focus{outline:2px solid rgba(225,90,47,.25);border-color:var(--accent)}.textarea-error{border-color:#c12b1e;box-shadow:0 0 0 2px #c12b1e26}.mono{font-family:IBM Plex Mono,monospace;font-size:.95rem;color:var(--ink)}.submitted-state{display:grid;gap:20px}.grade-list{display:grid;gap:16px}.grade-card{background:var(--surface);border-radius:16px;padding:16px 20px;border:1px solid var(--border);display:grid;gap:8px}.grade-question{margin:0;font-weight:600;font-size:1rem}.grade-answer{margin:0;color:var(--muted);font-size:.9rem;white-space:pre-wrap}.grade-result{display:flex;align-items:flex-start;gap:12px;padding-top:8px;border-top:1px solid var(--border);flex-wrap:wrap}.grade-score{font-family:IBM Plex Mono,monospace;font-size:1.1rem;font-weight:600;color:var(--accent-dark);white-space:nowrap}@media (max-width: 720px){main{padding:48px 16px}.panel{padding:24px}.hero-top{flex-direction:column}.question-meta{flex-direction:column;align-items:flex-start}}