:root {
  --wood-dark: #5C3D1E;
  --wood-med: #8B6B3D;
  --wood-warm: #A0822B;
  --wood-light: #C9A96E;
  --plank: #E8D5A8;
  --cream: #FFF8EC;
  --paper: #FDF5E6;
  --rope: #9E7B47;
  --leaf: #5B8C3E;
  --leaf-dark: #2D5A27;
  --sky: #D4ECFA;
  --amber: #E8943A;
  --amber-light: #FFF0D4;
  --amber-dark: #C47A20;
  --lantern: #F4C456;
  --danger: #C0392B;
  --danger-light: #FADBD8;
}

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

body {
  font-family: "Noto Sans TC", "Helvetica Neue", sans-serif;
  color: var(--wood-dark);
  min-height: 100vh;
  background: linear-gradient(180deg, var(--sky) 0%, #EEF6EC 40%, var(--cream) 100%);
  -webkit-font-smoothing: antialiased;
}

.page {
  max-width: 740px;
  margin: 0 auto;
  padding: 0 16px 60px;
}

/* ─── Wood card ─── */
.wood-card {
  background: linear-gradient(180deg, var(--cream) 0%, var(--paper) 100%);
  border: 2.5px solid var(--wood-light);
  border-radius: 14px;
  padding: 18px 20px;
  margin-bottom: 16px;
  position: relative;
}

/* ─── Wood buttons ─── */
.btn {
  border: 2px solid var(--wood-dark);
  cursor: pointer;
  font-weight: 700;
  border-radius: 10px;
  background: var(--wood-warm);
  color: #FFF;
  font-size: 15px;
  font-family: inherit;
  padding: 10px 22px;
  transition: all 0.12s;
  text-shadow: 0 1px 1px rgba(0,0,0,0.2);
  box-shadow: 0 3px 0 var(--wood-dark);
}

.btn:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 var(--wood-dark);
}

.btn-sm {
  font-size: 13px;
  padding: 6px 14px;
  box-shadow: 0 2px 0 var(--wood-med);
  border: 2px solid var(--wood-med);
  background: var(--wood-light);
  color: var(--wood-dark);
  text-shadow: none;
}

.btn-amber {
  background: var(--amber);
  color: #FFF;
  text-shadow: 0 1px 1px rgba(0,0,0,0.2);
}

/* ─── Inputs ─── */
input[type="text"],
select {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 2px solid var(--wood-light);
  background: var(--cream);
  font-size: 15px;
  font-family: inherit;
  color: var(--wood-dark);
  outline: none;
  transition: border-color 0.15s;
}

input[type="text"]:focus,
select:focus {
  border-color: var(--wood-warm);
}

/* ─── Link badge ─── */
.link-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--plank);
  padding: 7px 14px;
  border-radius: 10px;
  border: 2px solid var(--wood-light);
  font-size: 13px;
  flex-wrap: wrap;
}

.link-badge code {
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--wood-dark);
  word-break: break-all;
}

/* ─── Toast ─── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 10px 24px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  z-index: 999;
  animation: toast-in 0.2s ease;
}

.toast-ok {
  background: var(--amber-light);
  color: var(--wood-dark);
  border: 2px solid var(--amber);
  box-shadow: 0 3px 0 var(--amber-dark);
}

.toast-err {
  background: var(--danger-light);
  color: var(--danger);
  border: 2px solid var(--danger);
  box-shadow: 0 3px 0 var(--danger);
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(10px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ─── Grid ─── */
.time-grid {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  user-select: none;
  border-radius: 8px;
}

.grid-cell {
  height: 26px;
  cursor: pointer;
  transition: background 0.05s;
}

.grid-cell-on {
  background: var(--amber);
}

.grid-cell-off {
  background: var(--plank);
}

/* ─── Group color dots ─── */
.group-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

/* ─── Password input ─── */
input[type="password"] {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  border: 2px solid var(--wood-light);
  background: var(--cream);
  font-size: 15px;
  font-family: inherit;
  color: var(--wood-dark);
  outline: none;
  transition: border-color 0.15s;
}

input[type="password"]:focus {
  border-color: var(--wood-warm);
}

/* ─── Responsive ─── */

/* Tablet */
@media (max-width: 768px) {
  .page {
    max-width: 100%;
    padding: 0 14px 50px;
  }
  .wood-card {
    padding: 16px 18px;
  }
  .link-badge {
    padding: 6px 10px;
    gap: 6px;
  }
  .link-badge code {
    font-size: 11px;
  }
}

/* Mobile */
@media (max-width: 480px) {
  .page {
    padding: 0 10px 40px;
  }
  .wood-card {
    padding: 14px 14px;
    border-radius: 12px;
  }
  .btn {
    font-size: 14px;
    padding: 9px 16px;
  }
  .btn-sm {
    font-size: 12px;
    padding: 5px 10px;
  }
  input[type="text"],
  input[type="password"],
  select {
    font-size: 16px; /* prevents iOS zoom on focus */
    padding: 9px 12px;
  }
  .link-badge {
    padding: 6px 8px;
    gap: 4px;
    font-size: 11px;
  }
  .link-badge code {
    font-size: 10px;
    letter-spacing: 0;
  }
  .toast {
    left: 10px;
    right: 10px;
    transform: none;
    text-align: center;
    bottom: 16px;
  }
  @keyframes toast-in {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
  }
  .time-grid {
    margin-left: -14px;
    margin-right: -14px;
    padding: 0 6px;
  }
}

/* Event title responsive */
.event-title {
  line-height: 1.3;
}

/* Small mobile */
@media (max-width: 360px) {
  .event-title {
    font-size: 20px !important;
  }
  .page {
    padding: 0 8px 36px;
  }
  .wood-card {
    padding: 12px 10px;
  }
}