:root{--bg: #fafafa;--surface: #ffffff;--border: #e4e4e7;--text: #18181b;--text-muted: #71717a;--accent: #0d9488;--accent-soft: #ccfbf1;--danger: #dc2626;--success: #16a34a}@media (prefers-color-scheme: dark){:root:not([data-theme=light]){--bg: #0f1417;--surface: #182024;--border: #2a3439;--text: #f4f4f5;--text-muted: #9aa5ab;--accent: #2dd4bf;--accent-soft: #113b37;--danger: #f87171;--success: #4ade80}}:root[data-theme=dark]{--bg: #0f1417;--surface: #182024;--border: #2a3439;--text: #f4f4f5;--text-muted: #9aa5ab;--accent: #2dd4bf;--accent-soft: #113b37;--danger: #f87171;--success: #4ade80}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);transition:background .15s ease,color .15s ease}button{font-family:inherit;cursor:pointer}.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:360px;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:40px 32px;text-align:center}.logo{height:56px;margin-bottom:16px;background:#fff;border-radius:10px;padding:6px 12px}.logo-fallback{font-size:28px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:16px}.brand-header{display:flex;flex-direction:column;align-items:center;gap:6px;margin:0 0 28px}.logo-small{height:36px;margin-bottom:0;padding:4px 10px}.logo-fallback.logo-small{font-size:16px;margin-bottom:0}.brand-header-text{margin:0;font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted)}.login-card h1{font-size:18px;font-weight:600;color:var(--text-muted);margin:0 0 28px}.login-card form{display:flex;flex-direction:column;gap:16px;text-align:left}.login-card label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:500;color:var(--text-muted)}.login-card input{font-size:15px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;outline:none}.login-card input:focus{border-color:var(--accent)}.login-card button[type=submit]{margin-top:8px;background:var(--accent);color:#fff;border:none;border-radius:8px;padding:11px;font-size:15px;font-weight:600}.login-card button[type=submit]:disabled{opacity:.6;cursor:default}.form-error{color:var(--danger);font-size:13px;margin:0}.dashboard{max-width:760px;margin:0 auto;padding:32px 20px 64px}.dashboard-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:28px}.dashboard-header h1{margin:4px 0;font-size:24px}.sync-status{margin:0;font-size:13px;color:var(--accent)}.link-button{background:none;border:none;padding:0;color:var(--text-muted);font-size:13px;margin-bottom:4px}.logout-button{background:none;border:1px solid var(--border);border-radius:8px;padding:8px 14px;font-size:14px;color:var(--text)}.dashboard-loading,.dashboard-error{padding:48px 20px;text-align:center;color:var(--text-muted)}.empty-state{color:var(--text-muted);font-size:14px}.progress{display:flex;align-items:center;gap:8px}.progress-track{width:96px;height:6px;border-radius:999px;background:var(--border);overflow:hidden}.progress-fill{height:100%;background:var(--accent);border-radius:999px;transition:width .3s ease}.progress-fill-complete{background:var(--success)}.progress-label{font-size:12px;color:var(--text-muted);white-space:nowrap}.week-list{display:flex;flex-direction:column;gap:16px}.week-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:20px 22px}.week-card-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px;margin-bottom:8px}.week-card-header h3{margin:0;font-size:16px}.week-mentor{margin:0 0 12px;font-size:13px;color:var(--text-muted)}.week-fields{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px 20px;margin:0}.week-field dt{font-size:11px;text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);margin-bottom:2px}.week-field dd{margin:0;font-size:14px}.week-field-empty dd{color:var(--text-muted)}.week-notes{margin:16px 0 0;padding-top:12px;border-top:1px solid var(--border);font-size:13px;color:var(--text-muted)}.roster-list{display:flex;flex-direction:column;gap:10px}.roster-row{display:flex;justify-content:space-between;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 18px;text-align:left;width:100%}.roster-row:hover{border-color:var(--accent)}.roster-row-name{display:flex;flex-direction:column;gap:2px}.roster-row-id{font-size:12px;color:var(--text-muted)}.roster-row-progress{display:flex;align-items:center;gap:12px}.roster-row-week{font-size:12px;color:var(--text-muted)}.dashboard-header-actions{display:flex;align-items:center;gap:10px}.refresh-button{display:flex;align-items:center;gap:6px;background:none;border:1px solid var(--border);border-radius:8px;padding:8px 14px;font-size:14px;color:var(--text)}.refresh-button:disabled{opacity:.6;cursor:default}.refresh-icon{display:inline-block;font-size:15px;line-height:1}.refresh-icon-spinning{animation:refresh-spin .8s linear infinite}@keyframes refresh-spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.theme-toggle{position:fixed;top:16px;right:16px;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--border);border-radius:999px;font-size:16px;color:var(--text);z-index:10}.theme-toggle:hover{border-color:var(--accent)}.stat-boxes{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px;margin-bottom:24px}.stat-box{display:flex;flex-direction:column;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:14px 16px}.stat-box-value{font-size:22px;font-weight:700;color:var(--accent)}.stat-box-label{font-size:12px;color:var(--text-muted)}