:root{--text:#4a4557;--text-h:#16131f;--bg:#f7f6fb;--surface:#fff;--border:#e3e1ea;--accent:#7c3aed;--accent-2:#a855f7;--accent-bg:#7c3aed1a;--danger:#dc2626;--success:#16a34a;--shadow:#140a2814 0 10px 25px -5px, #140a280f 0 4px 6px -2px;--sans:system-ui, "Segoe UI", Roboto, sans-serif;--mono:ui-monospace, Consolas, monospace;font:16px/150% var(--sans);--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark;color:var(--text);background:var(--bg);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial;--text:#b7b3c4;--text-h:#f4f2f9;--bg:#121017;--surface:#1a1723;--border:#2c2837;--accent:#a78bfa;--accent-2:#c084fc;--accent-bg:#a78bfa26;--shadow:#00000080 0 10px 25px -5px, #0000004d 0 4px 6px -2px}}*{box-sizing:border-box}body{min-height:100svh;margin:0}#root{flex-direction:column;min-height:100svh;display:flex}h1,h2,h3{color:var(--text-h);margin:0;font-weight:600}p{margin:0}button{font:inherit}a{color:var(--accent)}.puzzle-page{background:radial-gradient(circle at 15% 20%, var(--accent-bg), transparent 45%), radial-gradient(circle at 85% 80%, var(--accent-bg), transparent 45%), var(--bg);flex:1;justify-content:center;align-items:center;padding:24px;display:flex}.puzzle-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:640px;box-shadow:var(--shadow);text-align:center;border-radius:20px;padding:40px 36px}.puzzle-eyebrow{text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:8px;font-size:13px;font-weight:600}.puzzle-card h1{margin-bottom:12px;font-size:32px}.puzzle-subtitle{color:var(--text);margin-bottom:28px}.puzzle-slots{justify-content:center;gap:12px;margin-bottom:12px;display:flex}.puzzle-slot{border:2px dashed var(--border);background:var(--bg);width:60px;height:60px;color:var(--text-h);cursor:pointer;border-radius:12px;font-size:26px;font-weight:700;transition:border-color .15s,transform .15s,background .15s}.puzzle-slot:not(:disabled):hover{border-color:var(--accent)}.puzzle-slot:disabled{cursor:default}.puzzle-slot:not(:empty){border-style:solid;border-color:var(--accent);background:var(--accent-bg)}.puzzle-slots.is-wrong .puzzle-slot{border-color:var(--danger);animation:.4s shake}.puzzle-slots.is-success .puzzle-slot{border-color:var(--success);background:#16a34a1f}@keyframes shake{0%,to{transform:translate(0)}20%{transform:translate(-6px)}40%{transform:translate(6px)}60%{transform:translate(-4px)}80%{transform:translate(4px)}}.puzzle-message{min-height:20px;margin-bottom:20px;font-size:14px;font-weight:600}.puzzle-message--error{color:var(--danger)}.puzzle-message--success{color:var(--success)}.puzzle-tiles{grid-template-columns:repeat(7,1fr);gap:8px;margin-bottom:24px;display:grid}@media (width<=480px){.puzzle-tiles{grid-template-columns:repeat(6,1fr)}.puzzle-card{padding:28px 18px}}.puzzle-tile{aspect-ratio:1;border:1px solid var(--border);background:var(--surface);color:var(--text-h);cursor:pointer;border-radius:10px;font-size:16px;font-weight:600;transition:transform .1s,border-color .15s,background .15s,opacity .15s}.puzzle-tile:not(:disabled):hover{border-color:var(--accent);transform:translateY(-2px)}.puzzle-tile:disabled{opacity:.3;cursor:default}.puzzle-shuffle{border:1px solid var(--border);color:var(--text);cursor:pointer;background:0 0;border-radius:999px;padding:10px 18px;font-size:14px;transition:border-color .15s,color .15s}.puzzle-shuffle:hover{border-color:var(--accent);color:var(--accent)}.login-page{background:radial-gradient(circle at 15% 20%, var(--accent-bg), transparent 45%), radial-gradient(circle at 85% 80%, var(--accent-bg), transparent 45%), var(--bg);flex:1;justify-content:center;align-items:center;padding:24px;display:flex}.login-card{background:var(--surface);border:1px solid var(--border);width:100%;max-width:420px;box-shadow:var(--shadow);text-align:center;border-radius:20px;padding:40px 36px}.login-eyebrow{text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:8px;font-size:13px;font-weight:600}.login-card h1{margin-bottom:10px;font-size:28px}.login-subtitle{color:var(--text);margin-bottom:28px;font-size:14px}.login-form{text-align:left;flex-direction:column;gap:16px;display:flex}.login-field{color:var(--text-h);flex-direction:column;gap:6px;font-size:13px;font-weight:600;display:flex}.login-field input{border:1px solid var(--border);background:var(--bg);color:var(--text-h);border-radius:10px;padding:11px 14px;font-family:inherit;font-size:15px}.login-field input:focus{border-color:var(--accent);outline:none}.login-error{color:var(--danger);margin:0;font-size:13px;font-weight:600}.login-submit{background:linear-gradient(135deg, var(--accent), var(--accent-2));color:#fff;cursor:pointer;border:none;border-radius:10px;margin-top:4px;padding:12px 18px;font-size:15px;font-weight:700;transition:opacity .15s}.login-submit:disabled{opacity:.6;cursor:default}.login-submit:not(:disabled):hover{opacity:.92}.login-toggle{color:var(--accent);cursor:pointer;background:0 0;border:none;margin-top:20px;font-size:13px;text-decoration:underline}.dashboard-page{flex-direction:column;flex:1;width:100%;max-width:1100px;margin:0 auto;padding:32px 24px 64px;display:flex}.dashboard-header{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:16px;margin-bottom:40px;display:flex}.dashboard-eyebrow{text-transform:uppercase;letter-spacing:2px;color:var(--accent);margin-bottom:6px;font-size:12px;font-weight:600}.dashboard-header h1{font-size:24px}.dashboard-logout{border:1px solid var(--border);background:var(--surface);color:var(--text-h);cursor:pointer;border-radius:10px;padding:10px 18px;font-size:14px;font-weight:600}.dashboard-logout:hover{border-color:var(--accent);color:var(--accent)}.dashboard-content h2{margin-bottom:20px;font-size:20px}.dashboard-error{color:var(--danger);font-weight:600}.dashboard-loading{color:var(--text)}.track-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.track-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:16px;flex-direction:column;gap:10px;padding:20px;display:flex}.track-card-top{justify-content:space-between;align-items:flex-start;gap:10px;display:flex}.track-card-top h3{font-size:17px}.track-status{text-transform:uppercase;letter-spacing:.5px;background:var(--accent-bg);color:var(--accent);border-radius:999px;flex-shrink:0;padding:4px 10px;font-size:11px;font-weight:700}.track-status--complete{color:var(--success);background:#16a34a1f}.track-description{color:var(--text);-webkit-line-clamp:3;-webkit-box-orient:vertical;font-size:14px;line-height:150%;display:-webkit-box;overflow:hidden}.track-meta{color:var(--text);margin-top:auto;font-size:12px;font-weight:600}