*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0e0e0f;
  --surface: #1a1a1c;
  --surface2: #242426;
  --border: #2e2e32;
  --text: #f0f0f0;
  --text-muted: #888;
  --text-hint: #555;
  --accent: #c8f060;
  --accent-dim: #a8d040;
  --danger: #ff5f5f;
  --radius: 14px;
  --radius-sm: 8px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.app {
  width: 100%;
  max-width: 420px;
}

header {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'DM Mono', monospace;
  font-size: 18px;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.tabs {
  display: flex;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 4px;
  gap: 4px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
}

.tab {
  flex: 1;
  padding: 9px 8px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: 'DM Sans', sans-serif;
  font-size: 13px;
  font-weight: 400;
  cursor: pointer;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: all 0.2s;
}

.tab:hover { color: var(--text); }

.tab.active {
  background: var(--surface2);
  color: var(--accent);
  border: 1px solid var(--border);
}

.section { display: none; }
.section.active { display: block; }

.display {
  text-align: center;
  padding: 2.5rem 0 2rem;
}

.time-display {
  font-family: 'DM Mono', monospace;
  font-size: 64px;
  font-weight: 300;
  color: var(--text);
  letter-spacing: -3px;
  line-height: 1;
  transition: color 0.3s;
}

.time-display.danger { color: var(--danger); }

.time-display .ms {
  font-size: 36px;
  color: var(--text-muted);
  letter-spacing: -1px;
}

.status {
  font-size: 12px;
  color: var(--text-hint);
  margin-top: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: 'DM Mono', monospace;
}

.controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  margin-bottom: 2rem;
}

.ctrl-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.ctrl-btn:hover { border-color: var(--text-hint); color: var(--text); }
.ctrl-btn:active { transform: scale(0.93); }

.ctrl-btn.main {
  width: 68px;
  height: 68px;
  background: var(--accent);
  border-color: var(--accent);
  color: #0e0e0f;
}

.ctrl-btn.main:hover { background: var(--accent-dim); border-color: var(--accent-dim); }

.laps {
  max-height: 200px;
  overflow-y: auto;
  border-top: 1px solid var(--border);
}

.laps::-webkit-scrollbar { width: 3px; }
.laps::-webkit-scrollbar-track { background: transparent; }
.laps::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.lap-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

.lap-row .lap-num { color: var(--text-hint); font-family: 'DM Mono', monospace; }
.lap-row .lap-time { color: var(--text); font-family: 'DM Mono', monospace; }
.lap-row.fastest .lap-time { color: var(--accent); }
.lap-row.slowest .lap-time { color: var(--danger); }

.time-inputs {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  padding: 1.5rem 0 0;
}

.input-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.input-group input {
  width: 72px;
  text-align: center;
  font-size: 28px;
  font-family: 'DM Mono', monospace;
  font-weight: 300;
  padding: 10px 4px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  outline: none;
  transition: border-color 0.2s;
}

.input-group input:focus { border-color: var(--accent); }
.input-group input::-webkit-inner-spin-button { display: none; }

.input-group label {
  font-size: 11px;
  color: var(--text-hint);
  letter-spacing: 0.1em;
  font-family: 'DM Mono', monospace;
}

.colon {
  font-size: 28px;
  color: var(--text-hint);
  font-family: 'DM Mono', monospace;
  margin-top: -14px;
}

.ring-banner {
  display: none;
  align-items: center;
  gap: 10px;
  background: rgba(255, 95, 95, 0.1);
  border: 1px solid rgba(255, 95, 95, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
  color: var(--danger);
  margin-bottom: 1.5rem;
}

.ring-banner.show { display: flex; animation: pulse 1s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.stop-btn {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border: 1px solid rgba(255, 95, 95, 0.4);
  border-radius: 6px;
  background: transparent;
  color: var(--danger);
  font-size: 12px;
  font-family: 'DM Sans', sans-serif;
  cursor: pointer;
  transition: background 0.15s;
}

.stop-btn:hover { background: rgba(255, 95, 95, 0.15); }

.alarm-add {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 1rem;
}

.alarm-add input[type="time"] {
  flex: 0 0 auto;
  font-size: 15px;
  font-family: 'DM Mono', monospace;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  outline: none;
}

.alarm-add input[type="time"]:focus { border-color: var(--accent); }

.alarm-add input[type="text"] {
  flex: 1;
  font-size: 14px;
  font-family: 'DM Sans', sans-serif;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  outline: none;
}

.alarm-add input[type="text"]:focus { border-color: var(--accent); }
.alarm-add input::placeholder { color: var(--text-hint); }

.add-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--accent);
  color: #0e0e0f;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.15s;
}

.add-btn:hover { background: var(--accent-dim); }
.add-btn:active { transform: scale(0.93); }

.alarm-list { display: flex; flex-direction: column; gap: 8px; }

.alarm-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s;
}

.alarm-item.on { border-color: var(--border); }
.alarm-item.off { opacity: 0.5; }

.alarm-info .alarm-time {
  font-family: 'DM Mono', monospace;
  font-size: 22px;
  font-weight: 300;
  color: var(--text);
}

.alarm-info .alarm-label {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

.alarm-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.toggle-btn {
  width: 40px;
  height: 22px;
  border-radius: 11px;
  border: none;
  cursor: pointer;
  position: relative;
  transition: background 0.25s;
  flex-shrink: 0;
}

.toggle-btn.on { background: var(--accent); }
.toggle-btn.off { background: var(--border); }

.toggle-btn::after {
  content: '';
  position: absolute;
  top: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #0e0e0f;
  transition: left 0.25s;
}

.toggle-btn.on::after { left: 21px; }
.toggle-btn.off::after { left: 3px; }

.del-btn {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-hint);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.del-btn:hover { border-color: var(--danger); color: var(--danger); }

.notif-hint {
  font-size: 12px;
  color: var(--text-hint);
  text-align: center;
  margin-top: 1rem;
}

.empty-state {
  text-align: center;
  padding: 2rem;
  font-size: 13px;
  color: var(--text-hint);
  font-family: 'DM Mono', monospace;
}

.days-picker {
  display: flex;
  gap: 6px;
  margin-bottom: 6px;
}

.day-btn {
  flex: 1;
  padding: 7px 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 12px;
  font-family: 'DM Mono', monospace;
  cursor: pointer;
  transition: all 0.15s;
}

.day-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #0e0e0f;
  font-weight: 500;
}

.days-hint {
  font-size: 11px;
  color: var(--text-hint);
  margin-bottom: 1rem;
  font-family: 'DM Mono', monospace;
}

.alarm-item .alarm-days {
  font-size: 11px;
  color: var(--accent);
  margin-top: 3px;
  font-family: 'DM Mono', monospace;
}

.input-error { border-color: var(--danger) !important; }

.error-msg {
  font-size: 11px;
  color: var(--danger);
  text-align: center;
  margin-bottom: 8px;
  font-family: 'DM Mono', monospace;
  min-height: 16px;
}