/* ===== CSS Variables ===== */
:root {
  --bg-0: #0d1117;
  --bg-1: #161b22;
  --bg-2: #1c2128;
  --bg-3: #262d36;
  --border: rgba(255,255,255,0.08);
  --text-0: #e6edf3;
  --text-1: #8b949e;
  --text-2: #484f58;
  --accent: #2ea043;
  --accent-dim: rgba(46,160,67,0.15);
  --accent-glow: rgba(46,160,67,0.28);
  --accent-check: #29a0d8;
  --danger: #f85149;
  --warning: #d29922;
  --font-mono: 'Space Mono', monospace;
  --font-sans: 'Noto Sans JP', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 8px 32px rgba(0,0,0,0.5);
  --transition: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { height: 100%; }
body {
  min-height: 100%;
  background: var(--bg-0);
  color: var(--text-0);
  font-family: var(--font-sans);
  display: flex;
  flex-direction: column;
}

/* ===== Header ===== */
.header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 18px;
  background: rgba(13,17,23,0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 15px; font-weight: 700; letter-spacing: 0.18em;
  color: var(--accent);
}
.logo-icon {
  width: 32px; height: 32px;
  border-radius: 7px;
  object-fit: cover;
}
.icon-btn {
  background: none; border: none; color: var(--text-1);
  cursor: pointer; padding: 8px; border-radius: var(--radius-sm);
  display: flex; align-items: center;
  transition: color var(--transition), background var(--transition);
}
.icon-btn:hover { color: var(--text-0); background: var(--bg-2); }

/* ===== Main ===== */
.main {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; padding: 20px 16px 48px;
}
.alarm-section {
  width: 100%; max-width: 420px;
  display: flex; flex-direction: column; gap: 16px;
}

/* ===== Current Time（小さめ） ===== */
.current-time-wrapper { text-align: center; padding: 4px 0; }
.current-time {
  font-family: var(--font-mono);
  font-size: 2rem; font-weight: 700; letter-spacing: 0.06em;
  color: var(--text-1); line-height: 1;
}
.current-date {
  margin-top: 5px;
  font-size: 0.78rem; color: var(--text-2); letter-spacing: 0.05em;
}

/* ===== Card 共通 ===== */
.alarm-set-card,
.message-builder-card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 18px 16px;
  display: flex; flex-direction: column; gap: 14px;
}
.card-label {
  font-size: 0.7rem; color: var(--text-2);
  letter-spacing: 0.12em; text-transform: uppercase;
}

/* ===== Time Inputs（大きく） ===== */
.time-inputs {
  display: flex; align-items: center;
  justify-content: center; gap: 8px;
}
.time-sep {
  font-family: var(--font-mono); font-size: 3rem; color: var(--text-2);
  padding-bottom: 4px; line-height: 1;
}
.time-input-group {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
}
.time-adj-btn {
  width: 72px; height: 40px;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-1);
  font-size: 1rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), color var(--transition), transform 0.1s;
  user-select: none;
}
.time-adj-btn:hover { background: var(--bg-3); color: var(--text-0); }
.time-adj-btn:active { transform: scale(0.94); }

.time-input-label {
  display: flex; flex-direction: column; align-items: center; gap: 2px;
  min-width: 80px;
}
.time-val {
  font-family: var(--font-mono);
  font-size: 4.5rem; font-weight: 700; color: var(--text-0); line-height: 1;
}
.time-unit { font-size: 0.72rem; color: var(--text-2); letter-spacing: 0.06em; }

/* ===== Remaining Label ===== */
.remaining-label {
  font-size: 0.85rem; color: var(--accent);
  text-align: center; min-height: 18px; letter-spacing: 0.04em;
}
.remaining-label.warn { color: var(--warning); }

/* ===== Check Groups ===== */
.check-group { display: flex; flex-direction: column; gap: 8px; }
.check-group-label {
  font-size: 0.72rem; color: var(--text-1);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.check-options {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.check-item {
  display: flex; align-items: center;
  cursor: pointer;
}
.check-item input[type="radio"] { display: none; }
.check-item span {
  display: inline-block;
  padding: 7px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-1);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  user-select: none;
}
.check-item input[type="radio"]:checked + span {
  background: var(--accent-dim);
  border-color: var(--accent-check);
  color: #fff;
}
.check-item:hover span { background: var(--bg-3); color: var(--text-0); }

/* ===== Message Preview ===== */
.message-preview {
  background: var(--bg-0);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.88rem;
  display: flex; align-items: center; gap: 8px;
}
.preview-label { color: var(--text-2); font-size: 0.75rem; white-space: nowrap; }
.preview-text {
  font-family: var(--font-mono);
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.06em;
}

/* ===== Controls ===== */
.controls { display: flex; gap: 12px; }
.ctrl-btn {
  flex: 1; padding: 15px;
  border-radius: var(--radius);
  font-family: var(--font-sans); font-size: 1rem; font-weight: 500;
  cursor: pointer; border: none;
  transition: all var(--transition); letter-spacing: 0.04em;
}
.ctrl-btn.primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}
.ctrl-btn.primary:hover {
  filter: brightness(1.1); transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}
.ctrl-btn.primary:active { transform: translateY(0); }
.ctrl-btn.secondary {
  background: var(--bg-2); color: var(--text-1); border: 1px solid var(--border);
}
.ctrl-btn.secondary:hover { background: var(--bg-3); color: var(--text-0); }

/* ===== Active Alarms ===== */
.active-alarms { display: flex; flex-direction: column; gap: 8px; }
.alarms-header {
  font-size: 0.7rem; color: var(--text-2);
  letter-spacing: 0.1em; text-transform: uppercase; padding: 4px 0;
}
.alarm-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg-1); border: 1px solid rgba(46,160,67,0.3);
  background: rgba(46,160,67,0.05);
  border-radius: var(--radius-sm); padding: 12px 14px;
  animation: item-in 0.2s ease;
}
@keyframes item-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.alarm-item-time {
  font-family: var(--font-mono); font-size: 1.4rem; font-weight: 700;
  color: var(--text-0); min-width: 62px;
}
.alarm-item-info { flex: 1; display: flex; flex-direction: column; gap: 3px; }
.alarm-item-msg {
  font-family: var(--font-mono); font-size: 0.9rem;
  color: var(--accent); font-weight: 700; letter-spacing: 0.04em;
}
.alarm-item-remaining { font-size: 0.72rem; color: var(--text-1); }
.alarm-item-delete {
  background: none; border: none; color: var(--text-2);
  cursor: pointer; padding: 6px; border-radius: 6px;
  display: flex; transition: color var(--transition);
}
.alarm-item-delete:hover { color: var(--danger); }

/* ===== Alarm Overlay ===== */
.alarm-overlay {
  position: fixed; inset: 0; z-index: 100;
  background: rgba(0,0,0,0.88);
  backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  animation: overlay-in 0.3s ease;
}
@keyframes overlay-in { from { opacity: 0; } to { opacity: 1; } }
.alarm-content {
  background: var(--bg-1); border: 1px solid rgba(46,160,67,0.35);
  border-radius: 20px; padding: 44px 36px;
  text-align: center;
  box-shadow: 0 0 60px rgba(46,160,67,0.15), var(--shadow);
  animation: alarm-pop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 320px; width: 90%;
}
@keyframes alarm-pop {
  from { transform: scale(0.75); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}
.alarm-icon {
  font-size: 3.2rem; margin-bottom: 14px;
  animation: shake 0.5s ease infinite;
}
@keyframes shake {
  0%, 100% { transform: rotate(-8deg); }
  50% { transform: rotate(8deg); }
}
.alarm-message {
  font-family: var(--font-mono);
  font-size: 1.6rem; font-weight: 700; color: var(--accent);
  margin-bottom: 8px; letter-spacing: 0.06em;
}
.alarm-sub-message {
  font-size: 0.9rem; color: var(--text-1); margin-bottom: 28px;
}
.alarm-dismiss {
  background: var(--accent); border: none; border-radius: var(--radius);
  color: #fff; font-family: var(--font-sans); font-size: 1rem; font-weight: 500;
  padding: 12px 40px; cursor: pointer;
  transition: filter var(--transition), transform var(--transition);
}
.alarm-dismiss:hover { filter: brightness(1.1); transform: translateY(-1px); }

.hidden { display: none !important; }

/* ===== Settings Panel ===== */
.settings-panel { position: fixed; inset: 0; z-index: 50; }
.settings-overlay { position: absolute; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); }
.settings-drawer {
  position: absolute; right: 0; top: 0; bottom: 0;
  width: min(380px, 100vw); background: var(--bg-1);
  border-left: 1px solid var(--border);
  display: flex; flex-direction: column;
  animation: drawer-in 0.25s cubic-bezier(0.4,0,0.2,1);
}
@keyframes drawer-in { from { transform: translateX(100%); } to { transform: translateX(0); } }
.settings-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 20px; border-bottom: 1px solid var(--border);
}
.settings-title { font-size: 1rem; font-weight: 500; }
.settings-body {
  flex: 1; overflow-y: auto; padding: 20px;
  display: flex; flex-direction: column; gap: 24px;
}
.settings-section { display: flex; flex-direction: column; gap: 10px; }
.settings-section-title {
  font-size: 0.72rem; font-weight: 500; color: var(--text-2);
  letter-spacing: 0.1em; text-transform: uppercase;
}
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 12px 14px;
}
.toggle-label { font-size: 0.9rem; }
.toggle-switch { position: relative; width: 44px; height: 24px; cursor: pointer; }
.toggle-switch input { display: none; }
.toggle-knob {
  position: absolute; inset: 0; background: var(--bg-3); border-radius: 12px;
  transition: background var(--transition);
}
.toggle-knob::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 18px; height: 18px; background: var(--text-2); border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}
.toggle-switch input:checked + .toggle-knob { background: rgba(46,160,67,0.3); }
.toggle-switch input:checked + .toggle-knob::after { transform: translateX(20px); background: var(--accent); }
.outline-btn {
  background: none; border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-0); font-family: var(--font-sans); font-size: 0.9rem;
  padding: 10px 16px; cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
}
.outline-btn:hover { border-color: var(--accent); background: var(--accent-dim); }
.notify-status { font-size: 0.78rem; color: var(--text-2); }
.notify-status.granted { color: var(--accent); }
.notify-status.denied { color: var(--danger); }

/* ===== Install Banner ===== */
#install-banner {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  background: var(--bg-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 12px 18px;
  display: flex; align-items: center; gap: 12px;
  box-shadow: var(--shadow); z-index: 20;
  font-size: 0.88rem; white-space: nowrap;
  animation: banner-in 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes banner-in {
  from { transform: translateX(-50%) translateY(60px); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0);    opacity: 1; }
}
#install-banner button {
  background: var(--accent); border: none; border-radius: var(--radius-sm);
  color: #fff; font-family: var(--font-sans); font-size: 0.82rem; font-weight: 500;
  padding: 6px 14px; cursor: pointer;
}
#install-banner .banner-dismiss {
  background: none; border: none; color: var(--text-2); cursor: pointer; font-size: 1rem;
}

@media (max-width: 400px) {
  .current-time { font-size: 1.6rem; }
  .time-val { font-size: 3.6rem; }
  .time-adj-btn { width: 60px; }
  .check-item span { padding: 6px 12px; font-size: 0.82rem; }
}