/* Tema Oscuro (por defecto) */
:root,
[data-theme="oscuro"] {
  --bg-primary: #0b0f19;
  --bg-surface: #131c2e;
  --bg-card: #1e293b;
  --border: #334155;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --court-green: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --modal-overlay: rgba(0, 0, 0, 0.75);
  --font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

/* Tema Claro */
[data-theme="claro"] {
  --bg-primary: #f1f5f9;
  --bg-surface: #ffffff;
  --bg-card: #f8fafc;
  --border: #cbd5e1;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #0284c7;
  --accent-hover: #0369a1;
  --court-green: #059669;
  --danger: #dc2626;
  --warning: #d97706;
  --modal-overlay: rgba(15, 23, 42, 0.6);
  --font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-family);
  font-size: 15px;
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: 70px;
}

/* Encabezado */
header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 40;
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-badge {
  font-size: 0.85rem;
  background: var(--bg-card);
  padding: 4px 10px;
  border-radius: 9999px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Barra de Navegación Inferior (Mobile Tabbar) */
nav.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 60px;
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-around;
  align-items: center;
  z-index: 50;
}

.nav-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.75rem;
  gap: 2px;
  cursor: pointer;
  padding: 6px 0;
}

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

/* Vistas y Contenedores */
.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 16px;
}

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

/* Tarjetas y Paneles */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 14px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
}

/* Botonera y Campos de Formulario */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  min-height: 44px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
  width: 100%;
  text-decoration: none;
}
.btn:active {
  opacity: 0.8;
}

.btn-primary   { background: var(--accent); color: #fff; }
.btn-court     { background: var(--court-green); color: #fff; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-secondary { background: var(--bg-card); color: var(--text-main); border: 1px solid var(--border); }

.form-group {
  margin-bottom: 14px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 10px 12px;
  min-height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-main);
  font-size: 1rem;
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
}

/* Selectores de Convocatoria */
.convocatoria-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 10px;
}
.player-slot {
  background: var(--bg-card);
  padding: 8px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  font-size: 0.85rem;
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.player-slot.filled {
  border-style: solid;
  border-color: var(--accent);
}
.player-slot.me {
  background: rgba(14, 165, 233, 0.15);
  border-color: var(--accent);
}

.reserva-badge {
  background: var(--warning);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
}

/* Modales */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--modal-overlay);
  z-index: 100;
  align-items: flex-end;
  justify-content: center;
}
.modal-overlay.open {
  display: flex;
}
.modal-content {
  background: var(--bg-surface);
  border-top-left-radius: 16px;
  border-top-right-radius: 16px;
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 20px;
}

/* Vistas de Calendario */
.calendar-switch {
  display: flex;
  background: var(--bg-card);
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 12px;
}
.calendar-switch button {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 6px 0;
  font-size: 0.85rem;
  cursor: pointer;
  border-radius: 6px;
}
.calendar-switch button.active {
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.month-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  text-align: center;
}
.month-day {
  aspect-ratio: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border-radius: 8px;
  font-size: 0.85rem;
  cursor: pointer;
  position: relative;
}
.month-day.today {
  border: 1px solid var(--accent);
  font-weight: 700;
}
.month-day .match-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--court-green);
  position: absolute;
  bottom: 4px;
}

/* Versión de escritorio responsiva */
@media (min-width: 640px) {
  .modal-overlay {
    align-items: center;
  }
  .modal-content {
    border-radius: 16px;
  }
}