/* ════════════════════════════════════════════════════════════════════
   FOREST SAFARIS INDIA · CORE DESIGN SYSTEM
   Shared across every page. Page-specific styles live in css/pages/.

   CONTENTS
   01. Design tokens
   02. Base / resets
   03. Buttons
   04. Section helpers & typography
   05. Scroll-reveal animation system
   06. Booking modal
   07. Toast notifications
   08. Floating actions (WhatsApp / back-to-top)
   09. Accessibility & motion preferences
   ════════════════════════════════════════════════════════════════════ */

/* ── 01. DESIGN TOKENS ── */
:root {
  --forest: #1a2e1a;
  --deep:   #0d1a0d;
  --moss:   #2d4a1e;
  --sage:   #4a6741;
  --fern:   #6b8f52;
  --gold:   #c9a84c;
  --amber:  #e8b84b;
  --cream:  #f5efe0;
  --ivory:  #faf7f0;
  --tiger:  #d4681e;
  --rth:    #7b2d00;
  --muted:  #6b6b5e;
  --font-display: 'Playfair Display', serif;
  --font-serif:   'Cormorant Garamond', serif;
  --font-body:    'Barlow', sans-serif;
  --font-ui:      'Inter', 'Barlow', sans-serif;
  --shadow-card:  0 28px 55px rgba(13, 26, 13, .12);
  --ease-out: cubic-bezier(.22, 1, .36, 1);
}

/* ── 02. BASE ── */
body {
  font-family: var(--font-body);
  overflow-x: hidden;
}
::selection { background: var(--gold); color: var(--deep); }

/* Slim premium scrollbar (WebKit) */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ivory); }
::-webkit-scrollbar-thumb { background: var(--sage); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: var(--moss); }

html { scroll-behavior: smooth; }

/* ── 03. BUTTONS ── */
.fsi-btn {
  display: inline-block;
  font-family: var(--font-body) !important;
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  padding: 15px 40px;
  text-decoration: none !important;
  position: relative;
  overflow: hidden;
  transition: background .2s, transform .15s, color .2s, box-shadow .25s;
}
/* gold sheen sweep on hover */
.fsi-btn::after {
  content: '';
  position: absolute;
  top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, .35), transparent);
  transform: skewX(-20deg);
  transition: left .55s var(--ease-out);
  pointer-events: none;
}
.fsi-btn:hover::after { left: 130%; }

.fsi-btn--gold { background: var(--gold); color: var(--deep) !important; }
.fsi-btn--gold:hover { background: var(--amber); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(201, 168, 76, .35); color: var(--deep) !important; }
.fsi-btn--outline { border: 1px solid rgba(245, 239, 224, .5); color: var(--cream) !important; }
.fsi-btn--outline:hover { border-color: var(--gold); color: var(--gold) !important; }
.fsi-btn--forest { background: var(--forest); color: var(--gold) !important; }
.fsi-btn--forest:hover { background: var(--moss); }
.fsi-btn--sm { padding: 10px 20px; font-size: .72rem; }

/* ── 04. SECTION HELPERS & TYPOGRAPHY ── */
.fsi-sec { padding: 60px 5%; }
@media (min-width: 861px) { .fsi-sec { padding: 90px 5%; } }
.fsi-sec--ivory { background: var(--ivory); }
.fsi-sec--cream { background: var(--cream); }
.fsi-sec--dark  { background: var(--forest); }
.fsi-sec--deep  { background: var(--deep); }

.fsi-tag {
  display: block;
  font-family: var(--font-body);
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 12px;
}
.fsi-h2 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 3.2vw, 2.9rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--forest);
  margin-bottom: 16px;
}
.fsi-h2 em { font-style: italic; color: var(--sage); }
.fsi-h2--lt { color: var(--cream); }
.fsi-h2--lt em { color: #8dbf6a; }
.fsi-lead {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--muted);
  line-height: 1.7;
}
.fsi-lead--lt { color: rgba(245, 239, 224, .65); }

/* ── 05. SCROLL-REVEAL SYSTEM ── */
.fsi-rv {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s var(--ease-out), transform .65s var(--ease-out);
}
.fsi-rv.vis { opacity: 1; transform: none; }

/* Stagger: add .fsi-stagger to a grid/list — direct children cascade in */
.fsi-stagger > * {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}
.fsi-stagger.vis > * { opacity: 1; transform: none; }
.fsi-stagger.vis > *:nth-child(1) { transition-delay: 0s; }
.fsi-stagger.vis > *:nth-child(2) { transition-delay: .08s; }
.fsi-stagger.vis > *:nth-child(3) { transition-delay: .16s; }
.fsi-stagger.vis > *:nth-child(4) { transition-delay: .24s; }
.fsi-stagger.vis > *:nth-child(5) { transition-delay: .32s; }
.fsi-stagger.vis > *:nth-child(6) { transition-delay: .4s; }
.fsi-stagger.vis > *:nth-child(7) { transition-delay: .48s; }
.fsi-stagger.vis > *:nth-child(8) { transition-delay: .56s; }

/* ── 06. BOOKING MODAL ── */
.stay-modal { position: fixed; inset: 0; z-index: 9999; display: none; align-items: center; justify-content: center; padding: 16px; }
.stay-modal.open { display: flex; }
.stay-modal__bd { position: absolute; inset: 0; background: rgba(13, 26, 13, .82); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); animation: fsiFade .25s both; }
.stay-modal__box { position: relative; z-index: 1; background: #fff; max-width: 540px; width: 100%; padding: 40px 36px; box-shadow: 0 32px 80px rgba(0, 0, 0, .32); max-height: 90vh; overflow-y: auto; animation: fsiPop .35s var(--ease-out) both; }
@keyframes fsiFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes fsiPop { from { opacity: 0; transform: translateY(26px) scale(.97); } to { opacity: 1; transform: none; } }
.stay-modal__close { position: absolute; top: 14px; right: 16px; background: none; border: none; font-size: 1.25rem; cursor: pointer; color: #888; line-height: 1; }
.stay-modal__close:hover { color: #111; }
.stay-modal__box h3 { font-family: var(--font-display); font-size: 1.5rem; color: var(--forest); margin-bottom: 5px; }
.stay-modal__sub { font-size: .83rem; color: #888; margin-bottom: 26px; }
.smod-row { display: grid; grid-template-columns: 1fr; gap: 12px; }
@media (min-width: 861px) { .smod-row { grid-template-columns: 1fr 1fr; } }
.smod-fg { margin-bottom: 13px; }
.smod-fg label { display: block; font-size: .65rem; font-weight: 700; letter-spacing: .13em; text-transform: uppercase; color: #999; margin-bottom: 6px; font-family: var(--font-ui); }
.smod-fg input, .smod-fg select, .smod-fg textarea { width: 100%; border: 1px solid rgba(0, 0, 0, .13); padding: 10px 12px; font-family: var(--font-body); font-size: .88rem; outline: none; transition: border-color .2s; border-radius: 0; -webkit-appearance: none; appearance: none; box-sizing: border-box; }
.smod-fg input:focus, .smod-fg select:focus, .smod-fg textarea:focus { border-color: var(--gold); }
.smod-sub { width: 100%; background: var(--forest); color: var(--gold); font-family: var(--font-ui); font-weight: 600; font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; padding: 14px; border: none; cursor: pointer; margin-top: 4px; transition: background .2s; }
.smod-sub:hover { background: var(--moss); }
.smod-sub[disabled] { opacity: .6; cursor: wait; }

/* ── 07. TOAST NOTIFICATIONS ── */
.fsi-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translate(-50%, 80px);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--forest);
  color: var(--cream);
  border-left: 3px solid var(--gold);
  font-family: var(--font-body);
  font-size: .9rem;
  padding: 15px 22px;
  max-width: min(480px, calc(100vw - 32px));
  box-shadow: 0 18px 48px rgba(0, 0, 0, .35);
  opacity: 0;
  transition: transform .45s var(--ease-out), opacity .45s;
  pointer-events: none;
}
.fsi-toast.show { transform: translate(-50%, 0); opacity: 1; }
.fsi-toast--error { border-left-color: var(--tiger); }
.fsi-toast__ico { font-size: 1.15rem; flex-shrink: 0; }

/* ── 08. FLOATING ACTIONS ── */
.fsi-float {
  position: fixed;
  right: 18px;
  z-index: 9000;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none !important;
  border: none;
  cursor: pointer;
  box-shadow: 0 10px 28px rgba(0, 0, 0, .28);
  transition: transform .2s, opacity .35s, visibility .35s;
}
.fsi-float:hover { transform: translateY(-3px) scale(1.05); }

.fsi-float--wa {
  bottom: 18px;
  background: #25d366;
  color: #fff !important;
  font-size: 1.5rem;
}
.fsi-float--wa::before {
  content: '';
  position: absolute;
  inset: -5px;
  border-radius: 50%;
  border: 2px solid rgba(37, 211, 102, .55);
  animation: fsiPulse 2.2s ease-out infinite;
}
@keyframes fsiPulse {
  0%   { transform: scale(.85); opacity: 1; }
  70%  { transform: scale(1.28); opacity: 0; }
  100% { transform: scale(1.28); opacity: 0; }
}

.fsi-float--top {
  bottom: 84px;
  width: 44px;
  height: 44px;
  background: var(--forest);
  color: var(--gold);
  font-size: 1rem;
  opacity: 0;
  visibility: hidden;
}
.fsi-float--top.show { opacity: 1; visibility: visible; }

/* ── 09. ACCESSIBILITY & MOTION ── */
.fsi-btn:focus-visible,
.fsi-float:focus-visible,
.smod-sub:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fsi-rv, .fsi-stagger > * { opacity: 1 !important; transform: none !important; transition: none !important; }
  .fsi-float--wa::before { animation: none; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}