/* ── Variables ────────────────────────────────────────────── */
:root {
  --color-fondo: #0f0f1a;
  --color-primario: #1a1a2e;
  --color-acento: #e94560;
  --color-acento-hover: #d63550;
  --color-texto: #ffffff;
  --color-texto-muted: #a0a0b0;
  --color-exito: #00d4aa;
  --color-borde: rgba(255,255,255,0.08);
  --color-card: rgba(255,255,255,0.04);
  --radio: 12px;
  --radio-sm: 8px;
  --sombra: 0 8px 32px rgba(0,0,0,0.4);
  --transition: all 0.2s ease;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--color-fondo);
  color: var(--color-texto);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ── Tipografía ───────────────────────────────────────────── */
h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); }
h3 { font-size: 1.25rem; }

p { color: var(--color-texto-muted); }

a { color: var(--color-acento); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.container-sm {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ── Navbar ───────────────────────────────────────────────── */
.navbar {
  background: rgba(26, 26, 46, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-borde);
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-texto);
  display: flex;
  align-items: center;
  gap: 10px;
  letter-spacing: -0.5px;
}

.navbar-brand span { color: var(--color-acento); }

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Botones ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 22px;
  border-radius: var(--radio-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  font-family: var(--font);
  letter-spacing: 0.3px;
}

.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--color-acento);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--color-acento-hover); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--color-acento);
  border: 1.5px solid var(--color-acento);
}
.btn-outline:hover:not(:disabled) { background: rgba(233,69,96,0.1); }

.btn-ghost {
  background: transparent;
  color: var(--color-texto-muted);
  border: 1.5px solid var(--color-borde);
}
.btn-ghost:hover:not(:disabled) { border-color: rgba(255,255,255,0.2); color: var(--color-texto); }

.btn-lg { padding: 14px 32px; font-size: 15px; }
.btn-sm { padding: 7px 14px; font-size: 13px; }
.btn-block { width: 100%; }

/* ── Formularios ──────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-texto-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

.form-input, .form-select, .form-textarea {
  background: rgba(255,255,255,0.06);
  border: 1.5px solid var(--color-borde);
  border-radius: var(--radio-sm);
  padding: 11px 14px;
  color: var(--color-texto);
  font-size: 15px;
  font-family: var(--font);
  transition: var(--transition);
  width: 100%;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-acento);
  background: rgba(233,69,96,0.05);
}

.form-input::placeholder, .form-textarea::placeholder { color: #505070; }

.form-select option { background: #1a1a2e; color: #fff; }

.form-textarea { resize: vertical; min-height: 80px; }

.form-error {
  font-size: 13px;
  color: var(--color-acento);
  margin-top: 4px;
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--color-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-borde);
  border-radius: var(--radio);
  padding: 24px;
  transition: var(--transition);
}

.card:hover { border-color: rgba(255,255,255,0.14); }

/* ── Badge ────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-pendiente  { background: rgba(255,193,7,0.15);  color: #ffc107; }
.badge-confirmada { background: rgba(0,212,170,0.15);  color: var(--color-exito); }
.badge-cancelada  { background: rgba(255,255,255,0.06); color: var(--color-texto-muted); }
.badge-completada { background: rgba(233,69,96,0.15);  color: var(--color-acento); }

/* ── Alert ────────────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radio-sm);
  font-size: 14px;
  margin-bottom: 16px;
  display: none;
}
.alert.show { display: block; }
.alert-error   { background: rgba(233,69,96,0.12); border: 1px solid rgba(233,69,96,0.3); color: #ff8099; }
.alert-success { background: rgba(0,212,170,0.12); border: 1px solid rgba(0,212,170,0.3); color: var(--color-exito); }
.alert-info    { background: rgba(100,120,255,0.12); border: 1px solid rgba(100,120,255,0.3); color: #8899ff; }

/* ── Divider ──────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-texto-muted);
  font-size: 13px;
  margin: 20px 0;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-borde);
}

/* ── Spinner ──────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

/* ── Utilidades ───────────────────────────────────────────── */
.text-muted   { color: var(--color-texto-muted); }
.text-acento  { color: var(--color-acento); }
.text-exito   { color: var(--color-exito); }
.text-center  { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.flex  { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-8  { gap: 8px; }
.gap-16 { gap: 16px; }
.hidden { display: none !important; }

/* ── Animaciones ──────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in { animation: fadeIn 0.3s ease; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 640px) {
  .navbar { padding: 0 16px; }
  .container { padding: 0 16px; }
  .btn-lg { padding: 12px 24px; }
}