/* ============================================================
   Altus Retreats — Property Booking Site
   Design system: clean, modern, nature-inspired
   Branding tokens injected at runtime from property config
   ============================================================ */

:root {
  /* Brand tokens (overridden per-property via JS) */
  --color-primary:     #2D4A3E;
  --color-primary-dk:  #1e3229;
  --color-accent:      #C9A84C;
  --color-accent-lt:   #e8c96a;
  --color-surface:     #FAFAF8;
  --color-surface-alt: #F2F0EC;
  --color-border:      #E0DDD8;
  --color-text:        #1A1A1A;
  --color-text-muted:  #6B6B6B;
  --color-error:       #C0392B;
  --color-success:     #27AE60;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;

  /* Layout */
  --max-width: 1200px;
  --radius:    12px;
  --radius-sm: 6px;
  --shadow:    0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.14);

  /* Transitions */
  --transition: 200ms ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

/* ── Typography ───────────────────────────────────── */
h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.2; font-weight: 700; }
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-text-muted); line-height: 1.75; }

/* ── Layout helpers ───────────────────────────────── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.section--alt { background: var(--color-surface-alt); }

/* ── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 600; font-size: 1rem;
  padding: 14px 28px; border-radius: var(--radius-sm); border: none;
  cursor: pointer; transition: all var(--transition); letter-spacing: 0.01em;
  white-space: nowrap;
}
.btn--primary {
  background: var(--color-primary); color: #fff;
}
.btn--primary:hover { background: var(--color-primary-dk); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--accent {
  background: var(--color-accent); color: #fff;
}
.btn--accent:hover { background: var(--color-accent-lt); color: var(--color-primary); }
.btn--outline {
  background: transparent; color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn--outline:hover { background: var(--color-primary); color: #fff; }
.btn--full { width: 100%; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none !important; }
.btn--lg { padding: 18px 36px; font-size: 1.1rem; }
.btn--loading::after {
  content: '';
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Navigation ───────────────────────────────────── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: transparent; transition: background var(--transition), box-shadow var(--transition);
  padding: 20px 0;
}
.nav.scrolled {
  background: rgba(250,250,248,0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--color-border);
  padding: 12px 0;
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
}
.nav__logo {
  font-family: var(--font-serif); font-size: 1.4rem; font-weight: 700;
  color: #fff; transition: color var(--transition);
}
.nav.scrolled .nav__logo { color: var(--color-primary); }
.nav__cta .btn { padding: 10px 22px; font-size: 0.9rem; }

/* ── Hero ─────────────────────────────────────────── */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.hero__gallery {
  position: absolute; inset: 0;
}
.hero__slide {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0; transition: opacity 1.2s ease;
}
.hero__slide.active { opacity: 1; }
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.1) 60%, transparent 100%);
}
.hero__content {
  position: relative; z-index: 1; padding: 60px 24px;
  max-width: var(--max-width); margin: 0 auto; width: 100%;
}
.hero__badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(201,168,76,0.2); color: var(--color-accent);
  border: 1px solid rgba(201,168,76,0.4);
  padding: 6px 14px; border-radius: 100px; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 20px; letter-spacing: 0.05em; text-transform: uppercase;
}
.hero__title { color: #fff; margin-bottom: 16px; }
.hero__subtitle { color: rgba(255,255,255,0.8); font-size: 1.1rem; max-width: 560px; margin-bottom: 32px; }
.hero__meta {
  display: flex; gap: 24px; flex-wrap: wrap; margin-bottom: 40px;
}
.hero__meta-item {
  display: flex; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.9); font-size: 0.95rem;
}
.hero__meta-item svg { opacity: 0.8; }
.hero__dots {
  display: flex; gap: 8px; margin-top: 24px;
}
.hero__dot {
  width: 8px; height: 8px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(255,255,255,0.4); transition: all var(--transition); padding: 0;
}
.hero__dot.active { background: #fff; width: 24px; border-radius: 4px; }

/* ── Booking Bar ──────────────────────────────────── */
.booking-bar {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 24px;
  display: grid; grid-template-columns: 1fr 1fr 1fr auto;
  gap: 16px; align-items: end;
  margin-top: -40px; position: relative; z-index: 10;
}
.booking-bar__field { display: flex; flex-direction: column; gap: 6px; }
.booking-bar__label {
  font-size: 0.75rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-text-muted);
}
.booking-bar__input {
  font-family: var(--font-sans); font-size: 1rem; font-weight: 500;
  border: 2px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 12px 14px; background: var(--color-surface);
  color: var(--color-text); transition: border-color var(--transition);
  width: 100%;
}
.booking-bar__input:focus { outline: none; border-color: var(--color-primary); }
.booking-bar__input::placeholder { color: var(--color-text-muted); font-weight: 400; }

/* ── About / Details ──────────────────────────────── */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start;
}
.about__stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin: 32px 0;
}
.about__stat {
  text-align: center; padding: 20px; border-radius: var(--radius);
  background: var(--color-surface-alt); border: 1px solid var(--color-border);
}
.about__stat-value {
  font-family: var(--font-serif); font-size: 2rem; font-weight: 700;
  color: var(--color-primary);
}
.about__stat-label { font-size: 0.85rem; color: var(--color-text-muted); margin-top: 4px; }

/* ── Photo Grid ───────────────────────────────────── */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 280px 280px;
  gap: 8px; border-radius: var(--radius); overflow: hidden;
}
.photo-grid__item {
  overflow: hidden; cursor: pointer; position: relative;
}
.photo-grid__item:first-child {
  grid-column: 1 / 3; grid-row: 1 / 3;
}
.photo-grid__item img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.5s ease;
}
.photo-grid__item:hover img { transform: scale(1.04); }
.photo-grid__more {
  position: absolute; inset: 0; background: rgba(0,0,0,0.5);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 1.1rem; font-weight: 600;
}

/* ── Amenities ────────────────────────────────────── */
.amenities-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 16px;
}
.amenity {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; border-radius: var(--radius-sm);
  background: var(--color-surface-alt); border: 1px solid var(--color-border);
  font-size: 0.95rem; font-weight: 500;
}
.amenity__icon { font-size: 1.2rem; flex-shrink: 0; }

/* ── Calendar ─────────────────────────────────────── */
.calendar-section { padding: 80px 0; }
.calendar-wrap { max-width: 760px; }
.calendar-nav {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px;
}
.calendar-month-title {
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700;
}
.calendar-nav-btn {
  background: var(--color-surface-alt); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all var(--transition); font-size: 1.1rem;
}
.calendar-nav-btn:hover { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.calendar-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px;
}
.calendar-day-header {
  text-align: center; font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); padding: 8px 0;
}
.calendar-day {
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 500;
  cursor: pointer; transition: all var(--transition); position: relative;
  border: 2px solid transparent;
}
.calendar-day:hover:not(.blocked):not(.past):not(.empty) {
  background: var(--color-surface-alt); border-color: var(--color-primary);
}
.calendar-day.blocked {
  background: var(--color-surface-alt); color: var(--color-text-muted);
  cursor: not-allowed; text-decoration: line-through; opacity: 0.5;
}
.calendar-day.past { color: var(--color-border); cursor: not-allowed; }
.calendar-day.empty { cursor: default; }
.calendar-day.selected-start, .calendar-day.selected-end {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.calendar-day.in-range {
  background: rgba(45,74,62,0.1); border-radius: 0;
}
.calendar-day.selected-start { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.calendar-day.selected-end { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.calendar-day.selected-start.selected-end { border-radius: var(--radius-sm); }
.calendar-legend {
  display: flex; gap: 24px; margin-top: 16px; font-size: 0.85rem; color: var(--color-text-muted);
}
.calendar-legend-item { display: flex; align-items: center; gap: 8px; }
.calendar-legend-dot {
  width: 12px; height: 12px; border-radius: 2px;
}
.calendar-legend-dot.available { background: var(--color-primary); }
.calendar-legend-dot.blocked { background: var(--color-border); }

/* ── Booking Form ─────────────────────────────────── */
.booking-section {
  background: var(--color-surface-alt); padding: 80px 0;
}
.booking-layout {
  display: grid; grid-template-columns: 1fr 420px; gap: 48px; align-items: start;
}
.booking-card {
  background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 36px; position: sticky; top: 100px;
}
.booking-card__price {
  font-family: var(--font-serif); font-size: 2rem; font-weight: 700;
  color: var(--color-primary);
}
.booking-card__per { font-size: 1rem; color: var(--color-text-muted); }
.booking-card__divider {
  border: none; border-top: 1px solid var(--color-border); margin: 24px 0;
}
.booking-card__line {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 12px; font-size: 0.95rem;
}
.booking-card__line--total {
  font-weight: 700; font-size: 1.05rem; color: var(--color-text);
  border-top: 1px solid var(--color-border); padding-top: 12px; margin-top: 4px;
}

.form-group { margin-bottom: 24px; }
.form-label {
  display: block; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 8px; color: var(--color-text);
}
.form-label span { color: var(--color-error); }
.form-input, .form-select {
  width: 100%; font-family: var(--font-sans); font-size: 1rem;
  border: 2px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 12px 16px; background: #fff; color: var(--color-text);
  transition: border-color var(--transition);
}
.form-input:focus, .form-select:focus {
  outline: none; border-color: var(--color-primary);
}
.form-input.error { border-color: var(--color-error); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-error { color: var(--color-error); font-size: 0.8rem; margin-top: 6px; }
.form-section-title {
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700;
  margin-bottom: 20px; padding-bottom: 12px; border-bottom: 1px solid var(--color-border);
}

/* ── Stripe Element ───────────────────────────────── */
#stripe-card-element {
  border: 2px solid var(--color-border); border-radius: var(--radius-sm);
  padding: 14px 16px; background: #fff; transition: border-color var(--transition);
}
#stripe-card-element.StripeElement--focus { border-color: var(--color-primary); }
#stripe-card-element.StripeElement--invalid { border-color: var(--color-error); }
#stripe-card-errors { color: var(--color-error); font-size: 0.85rem; margin-top: 8px; }

/* ── Steps indicator ──────────────────────────────── */
.steps {
  display: flex; align-items: center; gap: 0; margin-bottom: 48px;
}
.step {
  display: flex; align-items: center; gap: 10px; flex: 1;
}
.step__num {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem; font-weight: 700; flex-shrink: 0;
  border: 2px solid var(--color-border); color: var(--color-text-muted);
  background: #fff; transition: all var(--transition);
}
.step.active .step__num {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.step.completed .step__num {
  background: var(--color-success); color: #fff; border-color: var(--color-success);
}
.step__label { font-size: 0.85rem; font-weight: 600; color: var(--color-text-muted); }
.step.active .step__label, .step.completed .step__label { color: var(--color-text); }
.step__line { flex: 1; height: 2px; background: var(--color-border); margin: 0 8px; }
.step.completed .step__line { background: var(--color-success); }

/* ── Confirmation ─────────────────────────────────── */
.confirmation {
  min-height: 60vh; display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 80px 24px;
}
.confirmation__icon {
  width: 80px; height: 80px; border-radius: 50%;
  background: var(--color-success); display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px; font-size: 2rem;
}
.confirmation__title { margin-bottom: 16px; }
.confirmation__detail {
  background: var(--color-surface-alt); border-radius: var(--radius);
  padding: 24px; margin: 32px auto; max-width: 480px; text-align: left;
}
.confirmation__row {
  display: flex; justify-content: space-between; padding: 8px 0;
  border-bottom: 1px solid var(--color-border); font-size: 0.95rem;
}
.confirmation__row:last-child { border: none; }
.confirmation__row strong { color: var(--color-text); }

/* ── Footer ───────────────────────────────────────── */
.footer {
  background: var(--color-primary); color: rgba(255,255,255,0.8);
  padding: 48px 0;
}
.footer__inner {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 24px;
}
.footer__brand {
  font-family: var(--font-serif); font-size: 1.3rem; font-weight: 700; color: #fff;
}
.footer__links { display: flex; gap: 24px; }
.footer__link { font-size: 0.9rem; transition: color var(--transition); }
.footer__link:hover { color: #fff; }
.footer__copy { font-size: 0.85rem; }

/* ── Toast ────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 1000; display: flex; flex-direction: column; gap: 12px; }
.toast {
  padding: 14px 20px; border-radius: var(--radius-sm); box-shadow: var(--shadow-lg);
  font-size: 0.95rem; font-weight: 500; max-width: 360px;
  animation: slideIn 0.3s ease;
}
.toast--error { background: var(--color-error); color: #fff; }
.toast--success { background: var(--color-success); color: #fff; }
.toast--info { background: var(--color-primary); color: #fff; }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── Loading skeleton ─────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-surface-alt) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 900px) {
  .booking-bar { grid-template-columns: 1fr 1fr; }
  .booking-bar .btn { grid-column: span 2; }
  .about-grid { grid-template-columns: 1fr; }
  .booking-layout { grid-template-columns: 1fr; }
  .booking-card { position: static; }
  .photo-grid { grid-template-rows: 200px 200px; }
}
@media (max-width: 600px) {
  .booking-bar { grid-template-columns: 1fr; }
  .booking-bar .btn { grid-column: 1; }
  .form-row { grid-template-columns: 1fr; }
  .photo-grid { grid-template-columns: 1fr; grid-template-rows: auto; }
  .photo-grid__item:first-child { grid-column: 1; grid-row: 1; height: 260px; }
  .photo-grid__item:nth-child(n+2) { height: 180px; }
  .hero__meta { gap: 16px; }
  .about__stats { grid-template-columns: repeat(3, 1fr); }
  .steps { display: none; }
  .footer__inner { flex-direction: column; text-align: center; }
}