:root {
  --bg: #0a0a14;
  --bg-elevated: rgba(18, 18, 40, 0.65);
  --bg-card: rgba(26, 26, 46, 0.78);
  --bg-card-hover: rgba(34, 34, 58, 0.85);
  --border: rgba(42, 42, 62, 0.6);
  --text: #e8e8e8;
  --text-secondary: #8888a0;
  --accent: #ff6b35;
  --accent-hover: #e85d2c;
  --success: #4ecca3;
  --warning: #ffd93d;
  --danger: #e94560;
  --info: #4ea8de;
  --radius: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 4px 24px rgba(0,0,0,0.25);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.3);
  --blur: blur(16px);
  --max-width: 480px;
}

[data-theme="light"] {
  --bg: #eef0f5;
  --bg-elevated: rgba(255, 255, 255, 0.7);
  --bg-card: rgba(255, 255, 255, 0.78);
  --bg-card-hover: rgba(240, 242, 247, 0.85);
  --border: rgba(208, 208, 220, 0.6);
  --text: #1a1a2e;
  --text-secondary: #6b6b82;
  --shadow-card: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.08);
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior: none;
}

#app {
  max-width: var(--max-width);
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  min-height: 52px;
}

#header-title {
  flex: 1;
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  letter-spacing: -0.3px;
}

.icon-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text);
  font-size: 22px;
  cursor: pointer;
  border-radius: 12px;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
  flex-shrink: 0;
}

.icon-btn:active { background: var(--bg-card-hover); }

#main-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  padding-bottom: 90px;
}

#bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border-top: 1px solid var(--border);
  z-index: 100;
  padding-bottom: env(safe-area-inset-bottom, 0);
}

.nav-tab {
  flex: 1;
  padding: 14px 4px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
  letter-spacing: 0.2px;
}

.nav-tab:active { opacity: 0.7; }

.nav-tab.active { color: var(--accent); font-weight: 600; }

.card {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 12px;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s, box-shadow 0.15s;
}

.card-clickable { cursor: pointer; transition: background 0.15s; }
.card-clickable:active { background: var(--bg-card-hover); transform: scale(0.99); }

.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.card-title { font-size: 16px; font-weight: 600; letter-spacing: -0.2px; }
.card-body { font-size: 14px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  min-height: 44px;
  min-width: 44px;
  -webkit-tap-highlight-color: transparent;
  text-decoration: none;
  line-height: 1.2;
}

.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: scale(0.96); }

.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:active:not(:disabled) { background: var(--accent-hover); }

.btn-secondary { background: var(--bg-elevated); color: var(--text); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border); }
.btn-secondary:active:not(:disabled) { background: var(--bg-card-hover); }

.btn-success { background: var(--success); color: #0f0f1a; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }

.btn-sm { padding: 8px 16px; font-size: 13px; min-height: 36px; }
.btn-block { display: flex; width: 100%; }

.btn-group { display: flex; gap: 8px; }
.btn-group .btn { flex: 1; }

.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-elevated);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
  appearance: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12);
}

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M2 4l4 4 4-4' stroke='%238888a0' stroke-width='2' fill='none'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-textarea { min-height: 80px; resize: vertical; }
.form-input::placeholder { color: var(--text-secondary); }
input[type=date] { color-scheme: dark; -webkit-appearance: auto; appearance: auto; }
input[type=date]::-webkit-calendar-picker-indicator {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23e8e8e8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") center no-repeat;
  cursor: pointer;
}
[data-theme="light"] input[type=date] { color-scheme: light; }
[data-theme="light"] input[type=date]::-webkit-calendar-picker-indicator {
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%231a1a2e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Crect x='3' y='4' width='18' height='18' rx='2' ry='2'/%3E%3Cline x1='16' y1='2' x2='16' y2='6'/%3E%3Cline x1='8' y1='2' x2='8' y2='6'/%3E%3Cline x1='3' y1='10' x2='21' y2='10'/%3E%3C/svg%3E") center no-repeat;
  cursor: pointer;
}

.form-row { display: flex; gap: 12px; }
.form-row .form-group { flex: 1; }
.form-help { font-size: 12px; color: var(--text-secondary); margin-top: 4px; }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-confirmed, .badge-played { background: rgba(78,204,163,0.15); color: var(--success); }
.badge-waitlisted { background: rgba(255,217,61,0.15); color: var(--warning); }
.badge-cancelled_early, .badge-cancelled { background: rgba(78,168,222,0.15); color: var(--info); }
.badge-cancelled_late, .badge-no_show { background: rgba(233,69,96,0.15); color: var(--danger); }

#toast-container {
  position: fixed;
  top: 60px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-width: calc(100% - 32px);
  width: 400px;
  pointer-events: none;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  transform: translateY(-20px);
  opacity: 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: auto;
  box-shadow: var(--shadow-card);
}

.toast.show { transform: translateY(0); opacity: 1; }
.toast-info { background: var(--info); }
.toast-success { background: var(--success); color: #0f0f1a; }
.toast-error { background: var(--danger); }

#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 400px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.3s ease;
}

@keyframes slideUp { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.modal-header { padding: 20px 20px 0; }
.modal-header h3 { font-size: 18px; font-weight: 700; letter-spacing: -0.3px; }
.modal-body { padding: 16px 20px; font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.modal-footer { display: flex; gap: 8px; padding: 0 20px 20px; }
.modal-footer .btn { flex: 1; }

.notification-banner {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  animation: slideDown 0.3s ease;
  z-index: 99;
  position: relative;
}

.notification-banner span { flex: 1; }
.notification-banner .icon-btn { color: inherit; font-size: 20px; }
.notification-info { background: var(--info); color: #fff; }
.notification-success { background: var(--success); color: #0f0f1a; }
.notification-warning { background: var(--warning); color: #0f0f1a; }

@keyframes slideDown { from { transform: translateY(-100%); max-height: 0; } to { transform: translateY(0); max-height: 60px; } }

.fade-out { opacity: 0; transition: opacity 0.3s; }

.loading { text-align: center; padding: 60px 20px; color: var(--text-secondary); }

.loading::after {
  content: '';
  display: block;
  width: 32px;
  height: 32px;
  margin: 16px auto;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.stat-label { font-size: 11px; color: var(--text-secondary); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

.stats-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 20px; }

.stat-tile {
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 8px;
  text-align: center;
  box-shadow: var(--shadow-card);
}

.stat-big { font-size: 24px; font-weight: 700; color: var(--accent); letter-spacing: -0.5px; }

.dash-section { margin-bottom: 24px; }
.dash-section-title { font-size: 13px; font-weight: 600; margin-bottom: 12px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.8px; }
.dash-empty { font-size: 14px; color: var(--text-secondary); padding: 8px 0; }

.dash-game {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--bg-card);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  -webkit-tap-highlight-color: transparent;
}

.dash-game:active { background: var(--bg-card-hover); }
.dash-game-date { font-size: 14px; font-weight: 600; }
.dash-game-time { font-size: 13px; color: var(--accent); margin-top: 2px; }
.dash-game-right { text-align: right; }
.dash-game-fee { font-size: 16px; font-weight: 700; color: var(--accent); }
.dash-game-spots { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.widget-title { font-size: 13px; font-weight: 600; margin-bottom: 10px; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.5px; }

.cal-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; }
.cal-header { text-align: center; font-size: 10px; color: var(--text-secondary); padding: 6px 0; font-weight: 600; text-transform: uppercase; }

.cal-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  cursor: pointer;
  position: relative;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.cal-day:active { background: var(--bg-card-hover); }
.cal-has-game { background: rgba(255, 107, 53, 0.08); font-weight: 600; }
.cal-num { font-size: 14px; font-weight: 500; }
.cal-today { background: var(--accent); }
.cal-today .cal-num { color: #fff; font-weight: 700; }

.cal-dot {
  min-width: 16px;
  height: 16px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  position: absolute;
  bottom: 2px;
  line-height: 1;
}

.cal-today .cal-dot { background: #fff; color: var(--accent); }

.game-card-date { font-size: 15px; font-weight: 600; }
.game-card-time { font-size: 13px; color: var(--text-secondary); }
.game-card-location { font-size: 13px; color: var(--text-secondary); margin-top: 2px; }
.game-card-fee { font-size: 14px; font-weight: 500; color: var(--accent); }

.player-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); cursor: pointer; }
.player-item:last-child { border-bottom: none; }
.player-item:active { opacity: 0.7; }
.player-item-name { font-weight: 500; }
.player-item-meta { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.player-item-balance { font-size: 15px; font-weight: 600; }

.calendar-nav { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.calendar-title { font-size: 20px; font-weight: 700; letter-spacing: -0.5px; }

.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; margin-bottom: 20px; }
.calendar-day-header { text-align: center; font-size: 11px; color: var(--text-secondary); padding: 8px 0; font-weight: 600; text-transform: uppercase; }

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 14px;
  position: relative;
  transition: background 0.15s;
  -webkit-tap-highlight-color: transparent;
}

.calendar-day:active { background: var(--bg-card-hover); }
.calendar-day.other-month { color: var(--text-secondary); opacity: 0.35; }
.calendar-day.today { background: var(--accent); color: #fff; font-weight: 700; }
.calendar-day.selected { box-shadow: 0 0 0 2px var(--accent); }
.calendar-day.has-games::after { content: ''; position: absolute; bottom: 4px; width: 4px; height: 4px; border-radius: 50%; background: var(--accent); }
.calendar-day.today.has-games::after { background: #fff; }

.notification-box { background: var(--bg-elevated); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 14px; font-size: 14px; line-height: 1.7; white-space: pre-wrap; margin-bottom: 8px; font-family: inherit; color: var(--text); -webkit-user-select: all; user-select: all; }

.pin-section { display: flex; flex-direction: column; align-items: center; padding: 40px 20px; text-align: center; }

.pin-input {
  width: 180px;
  padding: 16px;
  font-size: 36px;
  letter-spacing: 16px;
  text-align: center;
  background: var(--bg-elevated);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: 'Inter', 'Courier New', monospace;
  caret-color: var(--accent);
}

.pin-input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.12); }
.pin-error { color: var(--danger); font-size: 14px; margin-top: 8px; min-height: 20px; }

.auth-container { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 80vh; padding: 32px 24px; text-align: center; }
.auth-logo { width: 80px; height: 80px; margin-bottom: 16px; }
.auth-title { font-size: 28px; font-weight: 800; margin-bottom: 6px; letter-spacing: -0.5px; }
.auth-subtitle { color: var(--text-secondary); font-size: 15px; margin-bottom: 32px; }

.section-title { font-size: 12px; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 10px; margin-top: 24px; }

.empty-state { text-align: center; padding: 40px 16px; color: var(--text-secondary); }
.empty-state-icon { font-size: 48px; margin-bottom: 12px; }
.empty-state-text { font-size: 15px; margin-bottom: 20px; }

.player-game-actions { display: flex; gap: 8px; margin-top: 10px; }

.tab-bar { display: flex; gap: 4px; margin-bottom: 16px; background: var(--bg-elevated); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border-radius: var(--radius-sm); padding: 4px; }

.tab-btn {
  flex: 1;
  padding: 8px 16px;
  border: none;
  background: none;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.tab-btn.active { background: var(--bg-card); color: var(--text); box-shadow: 0 1px 4px rgba(0,0,0,0.1); }

.transaction-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.transaction-item:last-child { border-bottom: none; }
.transaction-info { flex: 1; }
.transaction-desc { font-weight: 500; }
.transaction-date { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.transaction-amount { font-weight: 600; font-size: 15px; }
.transaction-amount.positive { color: var(--success); }
.transaction-amount.negative { color: var(--danger); }

.setting-item { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--border); cursor: pointer; }
.setting-item:last-child { border-bottom: none; }
.setting-item:active { opacity: 0.7; }
.setting-item-label { font-weight: 500; font-size: 15px; }
.setting-item-desc { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }
.setting-item-action { color: var(--text-secondary); font-size: 18px; }

.gym-item { display: flex; justify-content: space-between; align-items: center; padding: 14px 0; border-bottom: 1px solid var(--border); }
.gym-item:last-child { border-bottom: none; }
.gym-item-name { font-weight: 500; }
.gym-item-address { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

.organizer-item { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); }
.organizer-item:last-child { border-bottom: none; }

.text-center { text-align: center; }
.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }

.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.flex-1 { flex: 1; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }

.confirm-badge { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; font-size: 12px; font-weight: 700; }
.confirm-badge.available { background: var(--border); color: var(--text-secondary); }
.confirm-badge.confirmed { background: var(--success); color: #0f0f1a; }
.confirm-badge.waitlisted { background: var(--warning); color: #0f0f1a; }
.confirm-badge.empty { background: transparent; }