/* ===== Ofucos 排班系統 — 設計系統 v2 (Apple Style) ===== */

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

:root {
  /* Brand */
  --primary: #4ccbe1;
  --primary-hover: #3ab8ce;
  --primary-dark: #1a6c7a;
  --primary-light: #e6f7fa;
  --primary-subtle: #f0fbfd;

  /* Semantic */
  --success: #34c759;
  --success-light: #d1f5db;
  --danger: #ff3b30;
  --danger-light: #ffe0de;
  --warning: #ff9500;
  --warning-light: #fff3e0;
  --info: #5ac8fa;

  /* Neutrals — Apple-inspired gray scale */
  --gray-50: #f9fafb;
  --gray-100: #f2f2f7;
  --gray-200: #e5e5ea;
  --gray-300: #d1d1d6;
  --gray-400: #aeaeb2;
  --gray-500: #8e8e93;
  --gray-600: #636366;
  --gray-700: #48484a;
  --gray-800: #3a3a3c;
  --gray-900: #1c1c1e;

  /* Surfaces */
  --bg-primary: #ffffff;
  --bg-secondary: #f3f9fb;
  --bg-tertiary: var(--gray-100);
  --bg-page: #f3f9fb;

  /* Borders */
  --border-light: rgba(0, 0, 0, 0.06);
  --border-default: rgba(0, 0, 0, 0.1);
  --border-strong: rgba(0, 0, 0, 0.15);

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Shadows — layered Apple style */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.1), 0 4px 8px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.12), 0 8px 16px rgba(0, 0, 0, 0.06);

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Helvetica Neue", "Noto Sans TC", sans-serif;
  --font-mono: "SF Mono", "Menlo", "Monaco", monospace;

  /* Spacing scale */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 0.15s;
  --duration-normal: 0.25s;
  --duration-slow: 0.4s;

  /* Topbar — Ofucos 深藍 */
  --topbar-height: 56px;
  --topbar-bg: rgba(21, 50, 67, 0.95);
}

/* ===== Base ===== */
body {
  font-family: var(--font-sans);
  background: var(--bg-page);
  color: var(--gray-900);
  line-height: 1.5;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--primary-dark); text-decoration: none; }
a:hover { color: var(--primary-hover); }

/* ===== Topbar ===== */
.topbar {
  background: var(--topbar-bg);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  color: #fff;
  padding: 0 var(--sp-5);
  height: var(--topbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.topbar-title {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  letter-spacing: -0.01em;
}
.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}
.topbar-user {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.6);
  margin-right: var(--sp-2);
}

/* Nav links in topbar */
.topbar-actions .nav-link {
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  border: none;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-family: inherit;
  transition: all var(--duration-fast) var(--ease-out);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.topbar-actions .nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}
.topbar-actions .nav-link.active {
  color: #fff;
  background: var(--primary-dark);
  font-weight: 600;
}
.topbar-actions .nav-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, 0.12);
  margin: 0 var(--sp-1);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  white-space: nowrap;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn:active { transform: translateY(0); box-shadow: none; }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; box-shadow: none; }

.btn-primary {
  background: var(--primary-dark);
  color: #fff;
}
.btn-primary:hover {
  background: #153243;
}
.btn-brand {
  background: var(--primary);
  color: #fff;
}
.btn-brand:hover {
  background: var(--primary-hover);
}
.btn-sm { padding: 6px 12px; font-size: 0.8rem; border-radius: var(--radius-xs); }
.btn-xs { padding: 4px 8px; font-size: 0.75rem; border-radius: var(--radius-xs); }
.btn-ghost {
  background: transparent;
  color: rgba(255, 255, 255, 0.7);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  box-shadow: none;
}
.btn-outline {
  background: var(--bg-primary);
  border: 1.5px solid var(--border-default);
  color: var(--gray-700);
}
.btn-outline:hover {
  background: var(--gray-50);
  border-color: var(--border-strong);
}
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #e0342a; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #2db851; }
.btn-full { width: 100%; }
.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--radius-sm);
}
.btn-icon.sm {
  width: 32px;
  height: 32px;
}

/* ===== Form Elements ===== */
.field-group { margin-bottom: var(--sp-5); }
.field-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: var(--sp-2);
  letter-spacing: -0.01em;
}
.field-group input,
.field-group select,
.field-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--bg-primary);
  color: var(--gray-900);
  transition: all var(--duration-fast) var(--ease-out);
  -webkit-appearance: none;
}
.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(76, 203, 225, 0.12);
}
.field-group input::placeholder,
.field-group textarea::placeholder {
  color: var(--gray-400);
}
.required { color: var(--danger); }

/* ===== Activity Cards (for registration) ===== */
.activity-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}
.activity-card { cursor: pointer; }
.activity-card input { display: none; }
.activity-card .card-content {
  text-align: center;
  padding: 16px 10px;
  border: 2px solid var(--border-light);
  border-radius: var(--radius);
  transition: all var(--duration-normal) var(--ease-out);
  user-select: none;
  background: var(--bg-primary);
}
.activity-card .card-content:hover {
  border-color: var(--border-strong);
  background: var(--gray-50);
}
.activity-card input:checked + .card-content {
  border-color: var(--primary);
  background: var(--primary-subtle);
  box-shadow: 0 0 0 3px rgba(76, 203, 225, 0.15);
}
.card-icon { font-size: 1.8rem; margin-bottom: 4px; }
.card-label { font-size: 0.8rem; font-weight: 500; }

/* ===== Container ===== */
.container { max-width: 720px; margin: 0 auto; padding: var(--sp-6) var(--sp-4); }

.card {
  background: var(--bg-primary);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border-light);
  padding: var(--sp-6);
  margin-bottom: var(--sp-4);
}
.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: var(--sp-4);
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

/* ===== Login ===== */
.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--sp-5);
  background: linear-gradient(135deg, #e6f7fa 0%, #f3f9fb 50%, #e8f5e9 100%);
}
.login-card {
  background: var(--bg-primary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--border-light);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  text-align: center;
}
.login-card h1 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 6px;
  letter-spacing: -0.03em;
  color: var(--primary-dark);
}
.login-card .subtitle {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: var(--sp-8);
}
.login-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--sp-6);
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 3px;
}
.login-tab {
  flex: 1;
  padding: 9px;
  font-size: 0.85rem;
  font-weight: 500;
  background: transparent;
  border: none;
  border-radius: calc(var(--radius-sm) - 2px);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-out);
  color: var(--gray-500);
  font-family: inherit;
}
.login-tab.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}
.pw-wrapper {
  position: relative;
}
.pw-wrapper input { padding-right: 44px; }
.pw-toggle {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--gray-400);
  padding: 4px;
  line-height: 1;
  transition: color var(--duration-fast);
}
.pw-toggle:hover { color: var(--gray-700); }

.login-error {
  color: var(--danger);
  font-size: 0.85rem;
  margin-top: var(--sp-2);
  min-height: 20px;
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: calc(var(--topbar-height) + 12px);
  right: var(--sp-4);
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.toast {
  background: var(--gray-900);
  color: #fff;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn var(--duration-normal) var(--ease-out);
  max-width: 340px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.warning { background: var(--warning); color: var(--gray-900); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px) scale(0.95); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}

/* ===== Status Badge ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.badge-success { background: var(--success-light); color: #166534; }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-danger { background: var(--danger-light); color: #991b1b; }
.badge-info { background: var(--primary-light); color: var(--primary-dark); }

/* ===== Modal / Overlay ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-5);
  animation: fadeIn var(--duration-normal) var(--ease-out);
}
.modal {
  background: var(--bg-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalIn var(--duration-normal) var(--ease-spring);
}
@keyframes fadeIn { from { opacity: 0; } }
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
}

/* ===== Table ===== */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}
.data-table th {
  text-align: left;
  padding: 10px 12px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-default);
  background: var(--gray-50);
}
.data-table th:not(:first-child) { text-align: right; }
.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}
.data-table td:not(:first-child) {
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.data-table tr:hover td { background: var(--gray-50); }

/* ===== Empty State ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--gray-400);
  text-align: center;
}
.empty-state svg { margin-bottom: var(--sp-3); opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ===== Segmented Control (Apple style) ===== */
.seg-ctrl {
  display: inline-flex;
  background: var(--gray-100);
  border-radius: var(--radius-sm);
  padding: 3px;
  gap: 2px;
}
.seg-btn {
  flex: 1;
  padding: 7px 16px;
  font-size: 0.8rem;
  border: none;
  background: transparent;
  border-radius: calc(var(--radius-sm) - 2px);
  color: var(--gray-600);
  cursor: pointer;
  font-weight: 500;
  font-family: inherit;
  transition: all var(--duration-normal) var(--ease-out);
  white-space: nowrap;
}
.seg-btn:hover { color: var(--gray-900); }
.seg-btn.active {
  background: var(--bg-primary);
  color: var(--primary-dark);
  font-weight: 600;
  box-shadow: var(--shadow-sm);
}

/* ===== Search Input ===== */
.search-input {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  background: var(--bg-primary);
  border: 1.5px solid var(--border-default);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  transition: all var(--duration-fast) var(--ease-out);
}
.search-input:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(76, 203, 225, 0.12);
}
.search-input svg { color: var(--gray-400); flex-shrink: 0; }
.search-input input {
  border: none;
  background: transparent;
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  width: 100%;
  color: var(--gray-900);
}
.search-input input::placeholder { color: var(--gray-400); }

/* ===== Pill Tags ===== */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1.5px solid var(--border-default);
  background: var(--bg-primary);
  color: var(--gray-600);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-out);
  user-select: none;
}
.pill:hover { border-color: var(--border-strong); background: var(--gray-50); }
.pill.active {
  border-color: var(--primary);
  background: var(--primary-subtle);
  color: var(--primary-dark);
}

/* ===== Hidden ===== */
.hidden { display: none !important; }

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .activity-cards { grid-template-columns: repeat(2, 1fr); }
  .container { padding: var(--sp-4) var(--sp-3); }
  .card { padding: var(--sp-4); }
  .login-card { padding: 36px 24px; border-radius: var(--radius-lg); }
}