:root{color-scheme:light;--surface: #ffffff;--page: #f6f3ec;--text-primary: #221f1a;--text-secondary: #5c574c;--text-muted: #8d8778;--border: #e6e0d2;--border-strong: #cdc4ae;--accent: #3d7d70;--accent-hover: #2c5c52;--accent-soft: #e7f0ec;--success-bg: #e8f2e6;--success-text: #2f6b3f;--error-bg: #fbecea;--error-text: #a13a34;--shadow-sm: 0 1px 2px rgba(34, 31, 26, .05), 0 1px 1px rgba(34, 31, 26, .04);--shadow-md: 0 4px 14px rgba(34, 31, 26, .07), 0 1px 3px rgba(34, 31, 26, .05);--font-heading: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif}@media (prefers-color-scheme: dark){:root:where(:not([data-theme=light])){color-scheme:dark;--surface: #232019;--page: #19170f;--text-primary: #f4f0e6;--text-secondary: #c9c2b0;--text-muted: #948d7c;--border: #3a352b;--border-strong: #4d4738;--accent: #5faa9a;--accent-hover: #7fc0b1;--accent-soft: #223330;--success-bg: #17301d;--success-text: #7ed095;--error-bg: #37201d;--error-text: #e69289;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 6px 18px rgba(0, 0, 0, .4)}}:root[data-theme=dark]{color-scheme:dark;--surface: #232019;--page: #19170f;--text-primary: #f4f0e6;--text-secondary: #c9c2b0;--text-muted: #948d7c;--border: #3a352b;--border-strong: #4d4738;--accent: #5faa9a;--accent-hover: #7fc0b1;--accent-soft: #223330;--success-bg: #17301d;--success-text: #7ed095;--error-bg: #37201d;--error-text: #e69289;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .35);--shadow-md: 0 6px 18px rgba(0, 0, 0, .4)}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,sans-serif;background:var(--page);color:var(--text-primary);-webkit-font-smoothing:antialiased}h1{font-family:var(--font-heading);font-weight:500;letter-spacing:.2px;margin:0 0 4px;line-height:1.25}h2,h3{margin:0 0 4px;line-height:1.25}p{margin:0 0 8px;color:var(--text-secondary);line-height:1.55}button,input,select,textarea{font-family:inherit;font-size:16px}.app-loading{display:flex;align-items:center;justify-content:center;min-height:100vh;color:var(--text-secondary)}.btn-primary,.btn-secondary,.btn-icon,button[type=submit]{border:none;border-radius:999px;padding:12px 20px;font-weight:600;cursor:pointer;min-height:44px;transition:background-color .15s ease,box-shadow .15s ease,transform .05s ease}button[type=submit],.btn-primary{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}button[type=submit]:hover,.btn-primary:hover{background:var(--accent-hover)}button[type=submit]:active,.btn-primary:active{transform:translateY(1px)}button[type=submit]:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:transparent;color:var(--text-primary);border:1px solid var(--border-strong)}.btn-secondary:hover{background:var(--accent-soft);border-color:var(--accent)}.btn-icon{background:transparent;color:var(--error-text);border:1px solid var(--border);border-radius:8px;padding:6px 10px;min-height:auto}.btn-danger{background:transparent;color:var(--error-text);border:1px solid var(--error-text)}.btn-danger:hover{background:var(--error-bg)}.btn-danger:disabled{opacity:.6;cursor:not-allowed}a.btn-primary{display:inline-block;text-decoration:none;text-align:center}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 20% 15%,var(--accent-soft),transparent 55%),var(--page)}.auth-card{width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);border-top:3px solid var(--accent);border-radius:16px;padding:40px 32px 32px;display:flex;flex-direction:column;box-shadow:var(--shadow-md)}.auth-card h1{font-size:1.8rem}.auth-subtitle{margin-bottom:28px;color:var(--text-secondary)}.auth-card label{font-weight:600;margin-top:12px;margin-bottom:4px}.auth-card input{padding:11px 14px;border-radius:10px;border:1px solid var(--border-strong);background:var(--page);color:var(--text-primary)}.auth-card input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.auth-card button{margin-top:26px}.dashboard,.admin-dashboard{max-width:900px;margin:0 auto;padding:24px 16px 48px}.dashboard-header{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin-bottom:28px}.dashboard-header h1{font-size:1.6rem}.dashboard-subtitle{margin:0}.exercise-list{display:flex;flex-direction:column;gap:18px}.exercise-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;box-shadow:var(--shadow-sm)}.exercise-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px}.exercise-prompt{color:var(--text-primary);font-size:1.05em;margin:8px 0 14px}.exercise-textarea{width:100%;border-radius:10px;border:1px solid var(--border-strong);background:var(--page);color:var(--text-primary);padding:12px 14px;line-height:1.5;resize:vertical}.exercise-textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.exercise-options{display:flex;flex-direction:column;gap:8px}.option-row{display:flex;align-items:center;gap:8px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;cursor:pointer;transition:border-color .15s ease,background-color .15s ease}.option-row:hover{border-color:var(--accent);background:var(--accent-soft)}.exercise-actions{display:flex;align-items:center;gap:12px;margin-top:14px}.saved-indicator{color:var(--success-text);font-weight:600}.empty-state{color:var(--text-muted);font-style:italic}.exercise-percentage{display:flex;align-items:center;gap:14px}.exercise-percentage input[type=range]{flex:1;accent-color:var(--accent)}.percentage-value{font-weight:700;color:var(--text-primary);min-width:3.5ch;text-align:right;font-variant-numeric:tabular-nums}.exercise-smileys{display:flex;flex-wrap:wrap;gap:8px}.smiley-option{display:flex;flex-direction:column;align-items:center;gap:4px;padding:10px 12px;border:1px solid var(--border);border-radius:12px;cursor:pointer;transition:border-color .15s ease,background-color .15s ease;flex:1;min-width:76px}.smiley-option:hover,.smiley-option.selected{border-color:var(--accent);background:var(--accent-soft)}.smiley-option input{position:absolute;opacity:0;pointer-events:none}.smiley-emoji{font-size:1.8rem;line-height:1}.smiley-label{font-size:.78rem;color:var(--text-secondary);text-align:center}.panel-form{position:relative}.question-list{display:flex;flex-direction:column;gap:12px;margin-top:16px}.question-card{background:var(--page);border:1px solid var(--border);border-radius:12px;padding:14px 16px}.question-card-actions{display:flex;gap:8px;flex-wrap:wrap}.question-editor{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border-strong);display:flex;flex-direction:column}.question-editor label{font-weight:600;margin-top:12px;margin-bottom:4px}.question-editor select,.question-editor textarea{padding:11px 14px;border-radius:10px;border:1px solid var(--border-strong);background:var(--page);color:var(--text-primary)}.question-editor button{margin-top:16px;align-self:flex-start}.exercise-detail{display:flex;flex-direction:column;gap:6px}.assign-block{margin-top:24px;padding:18px;background:var(--surface);border:1px solid var(--border);border-radius:14px}.inline-form{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:12px 0}.inline-form label{width:100%;font-weight:600}.inline-form input,.inline-form select{padding:11px 14px;border-radius:10px;border:1px solid var(--border-strong);background:var(--page);color:var(--text-primary);flex:1;min-width:180px}.form-error{background:var(--error-bg);color:var(--error-text);padding:10px 14px;border-radius:10px;margin:12px 0;font-weight:600}.form-success{background:var(--success-bg);color:var(--success-text);padding:10px 14px;border-radius:10px;margin:12px 0;font-weight:600}.tabs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:24px;border-bottom:1px solid var(--border);padding-bottom:10px}.tab-button{background:transparent;border:1px solid var(--border);border-radius:999px;padding:9px 18px;cursor:pointer;color:var(--text-secondary);min-height:40px;transition:all .15s ease}.tab-button:hover{border-color:var(--accent);color:var(--text-primary)}.tab-button.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600;box-shadow:var(--shadow-sm)}.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-bottom:24px}@media (min-width: 640px){.stats-grid{grid-template-columns:repeat(4,1fr)}}.stat-card{background:var(--surface);border:1px solid var(--border);border-left:3px solid var(--accent);border-radius:14px;padding:18px;display:flex;flex-direction:column;gap:4px;box-shadow:var(--shadow-sm)}.stat-value{font-size:2rem;font-weight:700;color:var(--text-primary);font-variant-numeric:tabular-nums}.stat-label{color:var(--text-secondary);font-size:.9rem}.progress-block{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm)}.progress-header{display:flex;justify-content:space-between;margin-bottom:8px;font-weight:600;color:var(--text-primary)}.progress-track{height:10px;border-radius:999px;background:var(--border);overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:999px;transition:width .3s ease}.panel-form{max-width:480px;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm)}.panel-hint{font-size:.85rem;margin-bottom:8px}.panel-form label{font-weight:600;margin-top:12px;margin-bottom:4px}.panel-form input,.panel-form select,.panel-form textarea{padding:11px 14px;border-radius:10px;border:1px solid var(--border-strong);background:var(--page);color:var(--text-primary)}.panel-form input:focus,.panel-form select:focus,.panel-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.panel-form button{margin-top:22px;align-self:flex-start}.choices-builder{display:flex;flex-direction:column;margin-top:8px}.choice-row{display:flex;gap:8px;margin-bottom:8px}.choice-row input{flex:1}.user-chip-grid{display:grid;grid-template-columns:1fr;gap:12px}@media (min-width: 640px){.user-chip-grid{grid-template-columns:repeat(2,1fr)}}.user-chip{display:flex;flex-direction:column;align-items:flex-start;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:16px 18px;cursor:pointer;text-align:left;color:var(--text-primary);box-shadow:var(--shadow-sm);transition:border-color .15s ease,box-shadow .15s ease}.user-chip:hover{border-color:var(--accent);box-shadow:var(--shadow-md)}.user-chip span{color:var(--text-secondary);font-size:.9rem}.user-detail-header{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;margin:18px 0}.choices-preview{margin:8px 0;padding-left:20px;color:var(--text-secondary)}.choices-preview .selected{color:var(--accent);font-weight:600}.answer-box{margin-top:8px;padding:12px 14px;background:var(--page);border-radius:10px;border:1px solid var(--border);white-space:pre-wrap;line-height:1.5}.danger-zone{margin-top:28px;padding:18px;border:1px solid var(--error-text);border-radius:14px}.danger-zone h3{color:var(--error-text);margin-bottom:6px}.gdpr-notice{margin-top:40px;padding-top:20px;border-top:1px solid var(--border);color:var(--text-muted);font-size:.85rem}.gdpr-notice h3{color:var(--text-secondary);font-size:.95rem;margin-bottom:6px}.gdpr-notice p{margin-bottom:6px;color:var(--text-muted);line-height:1.5}.gdpr-notice a{color:var(--accent)}