:root,[data-theme=dark]{--bg: #0f1117;--surface: #1a1d27;--surface2: #232635;--border: #2e3147;--accent: #6c63ff;--accent-hover: #5a52e0;--danger: #ff4d6d;--success: #43d9a2;--warning: #ffc13b;--text: #e8eaf6;--text-muted: #7c7f9e;--radius: 12px;--shadow: 0 4px 24px rgba(0,0,0,.4)}[data-theme=light]{--bg: #f4f5fb;--surface: #ffffff;--surface2: #eef0f8;--border: #d4d7e8;--accent: #6c63ff;--accent-hover: #5a52e0;--danger: #e03455;--success: #2bb989;--warning: #e0a800;--text: #1a1d2e;--text-muted: #6b6f8e;--radius: 12px;--shadow: 0 4px 24px rgba(0,0,0,.1)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;border:none;border-radius:8px;padding:8px 18px;font-size:.9rem;font-weight:600;transition:background .15s,transform 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10px;font-size:1rem;line-height:1}.dashboard-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.dashboard-header h1{font-size:1.5rem}.timers-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:1.5rem}.timer-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:1rem}.timer-card-header{display:flex;justify-content:space-between;align-items:center}.timer-name-input{background:transparent;border:none;border-bottom:1px dashed var(--border);border-radius:0;font-size:1rem;font-weight:600;color:var(--text);padding:2px 4px;width:auto;flex:1}.timer-name-input:focus{border-bottom-color:var(--accent)}.timer-mode-toggle{display:flex;background:var(--surface2);border-radius:8px;padding:3px;gap:3px}.timer-mode-toggle button{padding:5px 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var(--border);border-radius:var(--radius);overflow:hidden}.session-card-header{display:flex;justify-content:space-between;align-items:center;padding:1rem 1.5rem;cursor:pointer;transition:background .15s}.session-card-header:hover{background:var(--surface2)}.session-info h3{font-size:1rem;margin-bottom:.2rem}.session-meta{font-size:.8rem;color:var(--text-muted);display:flex;gap:1rem}.session-badge{font-size:.75rem;padding:3px 10px;border-radius:20px;font-weight:600;text-transform:uppercase}.session-badge.stopwatch{background:#6c63ff33;color:var(--accent)}.session-badge.countdown{background:#ffc13b33;color:var(--warning)}.session-detail{border-top:1px solid var(--border);padding:1.5rem;display:grid;grid-template-columns:1fr 1fr;gap:1.5rem}.session-detail-laps h4,.session-detail-chart h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.5px;color:var(--text-muted);margin-bottom:.8rem}.empty-state{text-align:center;padding:4rem 2rem;color:var(--text-muted)}.empty-state p{margin-bottom:1rem;font-size:1.1rem}.world-clock{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1rem}.world-clock-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.world-clock-header h2{font-size:1.1rem}.btn-sm{padding:5px 12px;font-size:.82rem}.btn-icon{padding:3px 7px;font-size:.75rem}.world-clock-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:1rem}.clock-card{background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:1rem}.clock-card-local{border-color:var(--accent);box-shadow:0 0 0 1px var(--accent)}.clock-card-top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.5rem}.clock-city{font-weight:700;font-size:.95rem}.clock-region{font-size:.75rem;color:var(--text-muted)}.clock-time{font-size:1.5rem;font-weight:700;font-family:Courier New,monospace;letter-spacing:1px;margin-bottom:.2rem}.clock-date{font-size:.75rem;color:var(--text-muted)}.local-badge{font-size:.7rem;background:#6c63ff33;color:var(--accent);padding:2px 7px;border-radius:20px;font-weight:600}.tz-search{margin-bottom:1rem;position:relative}.tz-dropdown{position:absolute;top:100%;left:0;right:0;background:var(--surface);border:1px solid var(--border);border-radius:8px;max-height:220px;overflow-y:auto;z-index:100;box-shadow:var(--shadow)}.tz-option{display:flex;justify-content:space-between;align-items:center;padding:8px 14px;cursor:pointer;font-size:.88rem;gap:.5rem;transition:background .1s}.tz-option:hover{background:var(--surface2)}.tz-option-added{opacity:.5;cursor:default}.tz-offset{color:var(--text-muted);font-size:.8rem}.settings-section{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;margin-bottom:1.5rem}.settings-section h2{font-size:1.1rem;margin-bottom:.4rem}.settings-desc{color:var(--text-muted);font-size:.88rem;margin-bottom:1.2rem}.settings-row{display:flex;gap:1rem}.wc-zones-list{display:flex;flex-direction:column;gap:.5rem}.wc-zone-item{display:flex;align-items:center;gap:.8rem;background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:8px 14px;font-size:.9rem}.wc-zone-item span:first-child{flex:1}.tz-offset-tag{font-size:.78rem;color:var(--text-muted);background:var(--bg);padding:2px 8px;border-radius:20px}@media (max-width: 640px){.timers-grid,.session-detail{grid-template-columns:1fr}.navbar{padding:0 1rem}.page{padding:1rem}}