/* ============================================
   SISTEMA DE RESERVAS — ESTILOS PRINCIPALES
   ============================================ */

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

:root {
  --verde:   #1a2e1a;
  --arena:   #e8dcc8;
  --crema:   #f8f4ec;
  --tostado: #b8a88a;
  --texto:   #2c2c2a;
  --muted:   #888780;
  --blanco:  #ffffff;
  --borde:   #e0d8c8;
  --acento:  #8b6914;
}

body {
  font-family: 'Jost', sans-serif;
  background: var(--crema);
  color: var(--texto);
  min-height: 100vh;
}

/* ---- NAV ---- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: var(--verde);
  padding: 0 40px; height: 64px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px; font-weight: 300; letter-spacing: 3px;
  color: var(--arena); text-decoration: none;
}
.nav-ref { font-size: 12px; color: var(--tostado); letter-spacing: 1px; }

/* ---- HERO ---- */
.hero {
  padding-top: 64px;
  background: var(--verde);
  padding-bottom: 80px;
  text-align: center;
}
.hero-inner { padding: 60px 40px 0; }
.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 300; letter-spacing: 4px;
  color: var(--arena); line-height: 1.1;
}
.hero h1 em { font-style: italic; color: var(--tostado); }
.hero p {
  color: rgba(232,220,200,0.6);
  font-size: 14px; letter-spacing: 2px; margin-top: 16px;
  text-transform: uppercase;
}
.wave { display: block; margin-top: -2px; }

/* ---- LAYOUT ---- */
.main { max-width: 1100px; margin: 0 auto; padding: 0 24px 80px; }

/* ---- STEPS ---- */
.steps {
  display: flex; margin: 48px 0 40px;
  border-radius: 12px; overflow: hidden;
  border: 1px solid var(--borde);
  background: var(--blanco);
}
.step {
  flex: 1; padding: 16px 20px; text-align: center;
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted); transition: all .3s;
}
.step.active { background: var(--verde); color: var(--arena); }
.step.done   { background: #f0ece4; color: var(--acento); }
.step-num {
  display: block;
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px; font-weight: 300; margin-bottom: 2px; line-height: 1;
}

/* ---- CARDS ---- */
.card {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: 16px;
  padding: 36px 40px;
  margin-bottom: 24px;
}
.card-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 26px; font-weight: 300; letter-spacing: 1px;
  color: var(--verde); margin-bottom: 28px;
}
.card-title span { color: var(--tostado); }

/* ---- GRID ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }

/* ---- FORM FIELDS ---- */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label {
  font-size: 11px; letter-spacing: 2px; text-transform: uppercase;
  color: var(--muted); font-weight: 500;
}
.field input,
.field select,
.field textarea {
  padding: 14px 16px;
  border: 1px solid var(--borde);
  border-radius: 10px;
  font-family: 'Jost', sans-serif;
  font-size: 15px; color: var(--texto);
  background: var(--crema);
  outline: none;
  transition: border-color .2s, background .2s;
  -webkit-appearance: none;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--verde);
  background: var(--blanco);
}
.field textarea { resize: vertical; min-height: 80px; }

/* ---- APARTAMENTOS ---- */
.apt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px; margin-top: 8px;
}
.apt-card {
  border: 1.5px solid var(--borde); border-radius: 12px;
  padding: 20px; cursor: pointer;
  transition: all .25s; background: var(--crema);
  position: relative;
}
.apt-card:hover        { border-color: var(--verde); background: var(--blanco); }
.apt-card.selected     { border-color: var(--verde); background: var(--blanco); box-shadow: 0 0 0 3px rgba(26,46,26,0.08); }
.apt-card.unavailable  { opacity: 0.4; cursor: not-allowed; pointer-events: none; }
.apt-casa  { font-size: 10px; letter-spacing: 2px; text-transform: uppercase; color: var(--tostado); margin-bottom: 6px; }
.apt-nombre { font-family: 'Cormorant Garamond', serif; font-size: 20px; color: var(--verde); line-height: 1.2; margin-bottom: 4px; }
.apt-capacidad { font-size: 13px; color: var(--muted); }
.apt-precio {
  position: absolute; top: 20px; right: 20px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px; color: var(--acento); line-height: 1;
}
.apt-precio span { font-size: 13px; color: var(--muted); }
.apt-check {
  position: absolute; bottom: 16px; right: 16px;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--verde); display: none;
  align-items: center; justify-content: center;
}
.apt-card.selected .apt-check { display: flex; }
.apt-check::after {
  content: ''; width: 6px; height: 10px;
  border: 2px solid var(--arena); border-top: none; border-left: none;
  transform: rotate(45deg) translate(-1px,-1px);
}

/* ---- EXTRAS ---- */
.extras-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 12px;
}
.extra-item {
  border: 1.5px solid var(--borde); border-radius: 10px;
  padding: 16px; cursor: pointer;
  transition: all .2s; display: flex; align-items: flex-start; gap: 12px;
  background: var(--crema);
}
.extra-item:hover    { border-color: var(--verde); background: var(--blanco); }
.extra-item.selected { border-color: var(--acento); background: #fdf8ef; }
.extra-icon   { font-size: 24px; line-height: 1; flex-shrink: 0; }
.extra-info   { flex: 1; }
.extra-nombre { font-size: 14px; font-weight: 500; color: var(--texto); }
.extra-desc   { font-size: 12px; color: var(--muted); margin-top: 2px; line-height: 1.4; }
.extra-precio { font-size: 13px; color: var(--acento); margin-top: 4px; font-weight: 500; }
.extra-check {
  width: 20px; height: 20px; border-radius: 50%; flex-shrink: 0;
  border: 1.5px solid var(--borde);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s; margin-top: 2px;
}
.extra-item.selected .extra-check { background: var(--acento); border-color: var(--acento); }
.extra-item.selected .extra-check::after {
  content: ''; width: 5px; height: 8px;
  border: 2px solid white; border-top: none; border-left: none;
  transform: rotate(45deg) translate(-1px,-1px);
}

/* ---- RESUMEN ---- */
.resumen {
  background: var(--verde); border-radius: 16px; padding: 32px;
  color: var(--arena); position: sticky; top: 80px;
}
.resumen-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 22px; font-weight: 300; letter-spacing: 2px;
  margin-bottom: 24px; color: var(--arena);
}
.resumen-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid rgba(232,220,200,0.15);
  font-size: 14px;
}
.resumen-row:last-of-type { border-bottom: none; }
.resumen-label { color: rgba(232,220,200,0.65); }
.resumen-total {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0 0; margin-top: 8px;
  border-top: 1px solid rgba(232,220,200,0.3);
}
.resumen-total-label { font-size: 12px; letter-spacing: 2px; text-transform: uppercase; color: var(--tostado); }
.resumen-total-price { font-family: 'Cormorant Garamond', serif; font-size: 36px; font-weight: 300; color: var(--arena); }
.resumen-empty { color: rgba(232,220,200,0.4); font-size: 14px; text-align: center; padding: 20px 0; font-style: italic; }

/* ---- BOTONES ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 16px 32px; border-radius: 10px; border: none; cursor: pointer;
  font-family: 'Jost', sans-serif; font-size: 13px;
  letter-spacing: 2px; text-transform: uppercase; font-weight: 500;
  transition: all .2s; text-decoration: none;
}
.btn-next    { background: var(--verde); color: var(--arena); padding: 16px 48px; }
.btn-next:hover    { background: #243824; }
.btn-next:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-outline { background: transparent; color: var(--muted); border: 1px solid var(--borde); padding: 14px 32px; }
.btn-outline:hover { border-color: var(--verde); color: var(--verde); }
.btn-row { display: flex; gap: 12px; justify-content: flex-end; margin-top: 28px; align-items: center; }

/* ---- SIDEBAR LAYOUT ---- */
.layout-sidebar { display: grid; grid-template-columns: 1fr 340px; gap: 24px; align-items: start; }

/* ---- SECCIONES ---- */
.section { display: none; }
.section.active { display: block; }

/* ---- ALERTS ---- */
.alert { padding: 14px 18px; border-radius: 10px; font-size: 14px; margin-bottom: 20px; }
.alert-error { background: #fce8e8; color: #8b2020; border: 1px solid #f5c0c0; }
.alert-ok    { background: #e8f4e8; color: #2a6a2a; border: 1px solid #b8ddb8; }

/* ---- SPINNER ---- */
.spinner {
  width: 20px; height: 20px; border: 2px solid currentColor;
  border-top-color: transparent; border-radius: 50%;
  animation: spin .7s linear infinite; display: none;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- PAGO REDIRIGIENDO ---- */
.pago-redirect { text-align: center; padding: 60px; }
.pago-redirect .icono { font-size: 48px; margin-bottom: 20px; }
.pago-redirect h2 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 30px; font-weight: 300; color: var(--verde); margin-bottom: 12px;
}
.pago-redirect p { color: var(--muted); font-size: 14px; }
.spinner-lg {
  width: 36px; height: 36px; border-width: 3px; color: var(--verde);
  margin: 30px auto 0; display: block;
}

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .layout-sidebar { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .card  { padding: 24px 20px; }
  nav    { padding: 0 20px; }
  .steps { overflow-x: auto; }
  .step  { min-width: 80px; }
}