/* ==========================================================================
   Rainbow Guest House — Sylhet
   Design language: after the monsoon rain clears over the tea hills of
   Subidbazar, an arc of light appears. The same arcs show up, literally,
   in the curved LED coving of the property's own rooms — so the arc band
   is the one recurring signature here, not a literal rainbow.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600;9..144,700&family=Work+Sans:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root{
  /* --- colour tokens --- */
  --ink:        #0B1220;   /* deep night-sky navy, from the facade shot   */
  --ink-soft:   #16233A;
  --tea:        #234D3A;   /* deep tea-garden green                       */
  --tea-soft:   #2F6350;
  --gold:       #E8B94E;   /* fairy-light gold from the building at night */
  --gold-soft:  #F4D384;
  --mist:       #49C7BB;   /* teal/cyan LED glow seen in the rooms        */
  --clay:       #A8462C;   /* brick-rust curtain accent, used sparingly   */
  --paper:      #F1ECE0;   /* warm paper, alternate section background    */
  --paper-dim:  #E7E0CE;
  --cream:      #F8F4EA;

  /* --- type tokens --- */
  --display: 'Fraunces', serif;
  --body:    'Work Sans', sans-serif;
  --mono:    'JetBrains Mono', monospace;

  --radius: 14px;
  --edge: 1px solid rgba(232,185,78,0.18);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{ font-family:var(--display); font-weight:600; margin:0 0 .4em; letter-spacing:-0.01em; }
p{ margin:0 0 1em; }
ul{ margin:0; padding:0; list-style:none; }
.container{ max-width:1180px; margin:0 auto; padding:0 24px; }
.mono{ font-family:var(--mono); }

/* focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible{
  outline:2px solid var(--mist);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

/* ==========================================================================
   Arc signature — nested bands echoing the ceiling coves in the rooms
   ========================================================================== */
.arc-divider{
  position:relative;
  width:100%;
  height:64px;
  overflow:hidden;
  line-height:0;
}
.arc-divider svg{ width:100%; height:100%; display:block; }

.arc-motif{
  position:absolute;
  pointer-events:none;
}

/* ==========================================================================
   Nav
   ========================================================================== */
.site-nav{
  position:sticky; top:0; z-index:100;
  background:rgba(11,18,32,0.92);
  backdrop-filter:blur(10px);
  border-bottom:var(--edge);
}
.site-nav .container{
  display:flex; align-items:center; justify-content:space-between;
  height:76px;
}
.brand{
  display:flex; flex-direction:column; color:var(--cream);
}
.brand-mark{
  font-family:var(--display); font-size:1.35rem; font-weight:700; color:var(--gold-soft);
  letter-spacing:0.01em;
}
.brand-sub{ font-size:.68rem; letter-spacing:.16em; text-transform:uppercase; color:var(--mist); }

.nav-links{ display:flex; gap:32px; align-items:center; }
.nav-links a{
  color:var(--cream); font-size:.92rem; font-weight:500; opacity:.85;
  position:relative; padding:4px 0;
}
.nav-links a::after{
  content:''; position:absolute; left:0; bottom:-2px; height:2px; width:0;
  background:var(--gold); transition:width .25s ease;
}
.nav-links a:hover{ opacity:1; }
.nav-links a:hover::after{ width:100%; }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:12px 22px; border-radius:999px; font-weight:600; font-size:.9rem;
  border:none; cursor:pointer; transition:transform .2s ease, box-shadow .2s ease;
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-gold{ background:linear-gradient(135deg,var(--gold),#D69B2E); color:var(--ink); box-shadow:0 8px 24px rgba(232,185,78,0.25); }
.btn-outline{ background:transparent; color:var(--cream); border:1px solid rgba(248,244,234,0.35); }
.btn-outline:hover{ border-color:var(--gold); }
.btn-tea{ background:var(--tea); color:var(--cream); }

.nav-toggle{ display:none; background:none; border:none; color:var(--cream); font-size:1.6rem; cursor:pointer; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero{
  position:relative;
  min-height:92vh;
  display:flex; align-items:flex-end;
  background:#000;
  overflow:hidden;
}
.hero-img{
  position:absolute; inset:0; width:100%; height:100%; object-fit:cover;
  opacity:.78;
}
.hero-scrim{
  position:absolute; inset:0;
  background:
    linear-gradient(180deg, rgba(11,18,32,0.35) 0%, rgba(11,18,32,0.35) 40%, var(--ink) 96%),
    linear-gradient(90deg, rgba(11,18,32,0.65) 0%, rgba(11,18,32,0.1) 55%);
}
.hero-content{
  position:relative; z-index:2;
  padding:120px 0 90px;
  width:100%;
  color:var(--cream);
}
.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:.72rem; letter-spacing:.2em; text-transform:uppercase;
  color:var(--mist); margin-bottom:22px;
}
.eyebrow::before{
  content:''; width:26px; height:2px; background:var(--gold);
}
.hero h1{
  font-size:clamp(2.4rem, 6vw, 4.6rem);
  max-width:16ch;
  color:var(--cream);
  line-height:1.04;
}
.hero h1 em{
  font-style:italic; color:var(--gold-soft);
}
.hero-sub{
  max-width:46ch; font-size:1.08rem; color:rgba(248,244,234,0.82); margin-top:18px;
}
.hero-cta{ display:flex; gap:16px; margin-top:34px; flex-wrap:wrap; }
.hero-meta{
  display:flex; gap:38px; margin-top:56px; flex-wrap:wrap;
}
.hero-meta div{ border-left:2px solid rgba(232,185,78,0.4); padding-left:14px; }
.hero-meta .num{ font-family:var(--mono); font-size:1.3rem; color:var(--gold-soft); display:block; }
.hero-meta .lab{ font-size:.78rem; color:rgba(248,244,234,0.65); }

/* ==========================================================================
   Quick facts strip
   ========================================================================== */
.facts{
  background:var(--tea); color:var(--cream); padding:38px 0;
}
.facts .container{
  display:grid; grid-template-columns:repeat(4,1fr); gap:24px;
}
.fact{ display:flex; gap:14px; align-items:flex-start; }
.fact .icon{
  width:42px; height:42px; flex:0 0 42px; border-radius:50%;
  background:rgba(232,185,78,0.16); display:flex; align-items:center; justify-content:center;
  color:var(--gold-soft);
}
.fact h4{ font-size:.95rem; margin-bottom:2px; color:var(--cream); }
.fact p{ font-size:.82rem; color:rgba(248,244,234,0.7); margin:0; }

/* ==========================================================================
   Section shell
   ========================================================================== */
section{ padding:96px 0; }
.section-head{ max-width:640px; margin-bottom:52px; }
.section-head .eyebrow{ color:var(--tea-soft); }
.section-head .eyebrow::before{ background:var(--clay); }
.section-head h2{ font-size:clamp(1.9rem,3.4vw,2.7rem); color:var(--ink); }
.section-head p{ color:#4B4438; font-size:1.02rem; }

.on-dark{ background:var(--ink); color:var(--cream); }
.on-dark .section-head h2{ color:var(--cream); }
.on-dark .section-head p{ color:rgba(248,244,234,0.7); }

/* ==========================================================================
   Rooms
   ========================================================================== */
.room-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:28px;
}
.room-card{
  background:var(--cream); border-radius:var(--radius); overflow:hidden;
  border:1px solid rgba(35,77,58,0.12);
  transition:transform .3s ease, box-shadow .3s ease;
  display:flex; flex-direction:column;
}
.room-card:hover{ transform:translateY(-6px); box-shadow:0 22px 40px rgba(11,18,32,0.14); }
.room-photo{ position:relative; aspect-ratio:4/3; overflow:hidden; }
.room-photo img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease; }
.room-card:hover .room-photo img{ transform:scale(1.06); }
.room-tag{
  position:absolute; top:14px; left:14px;
  background:rgba(11,18,32,0.72); color:var(--gold-soft);
  font-family:var(--mono); font-size:.68rem; letter-spacing:.08em; text-transform:uppercase;
  padding:6px 12px; border-radius:999px;
}
.room-body{ padding:22px 22px 24px; flex:1; display:flex; flex-direction:column; }
.room-body h3{ font-size:1.25rem; color:var(--ink); }
.room-meta{ display:flex; align-items:center; gap:8px; color:#6b6355; font-size:.86rem; margin-bottom:14px; }
.room-price{
  margin-top:auto; display:flex; align-items:baseline; justify-content:space-between;
  border-top:1px dashed rgba(35,77,58,0.25); padding-top:16px;
}
.room-price .amount{ font-family:var(--mono); font-size:1.4rem; color:var(--tea); font-weight:600; }
.room-price .unit{ font-size:.76rem; color:#8a8272; }
.room-note{ font-size:.72rem; color:#8a8272; margin-top:4px; }

/* ==========================================================================
   Tariff table
   ========================================================================== */
.tariff-wrap{
  background:var(--ink-soft); border-radius:20px; padding:8px;
  border:var(--edge);
  overflow-x:auto;
}
table.tariff{
  width:100%; border-collapse:collapse; min-width:560px;
}
table.tariff th, table.tariff td{
  padding:18px 22px; text-align:left;
}
table.tariff thead th{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--mist); border-bottom:1px solid rgba(73,199,187,0.25);
}
table.tariff tbody tr{ border-bottom:1px solid rgba(255,255,255,0.06); }
table.tariff tbody tr:last-child{ border-bottom:none; }
table.tariff tbody tr:hover{ background:rgba(232,185,78,0.06); }
table.tariff td.room-name{ color:var(--cream); font-weight:600; font-family:var(--display); font-size:1.05rem; }
table.tariff td.pax{ color:rgba(248,244,234,0.6); }
table.tariff td.rate{ font-family:var(--mono); color:var(--gold-soft); font-size:1.1rem; }
table.tariff td.rate span{ font-size:.7rem; color:rgba(248,244,234,0.45); display:block; }

.tariff-foot{
  margin-top:22px; padding:18px 24px; border-radius:14px;
  background:rgba(73,199,187,0.08); border:1px solid rgba(73,199,187,0.2);
  color:rgba(248,244,234,0.85); font-size:.9rem;
}
.tariff-foot strong{ color:var(--gold-soft); }

/* ==========================================================================
   Amenities
   ========================================================================== */
.amenity-grid{
  display:grid; grid-template-columns:1fr 1fr; gap:40px;
}
.amenity-col h3{
  font-size:1.05rem; text-transform:uppercase; letter-spacing:.08em;
  color:var(--tea); margin-bottom:18px; font-family:var(--body); font-weight:600;
}
.amenity-col ul li{
  display:flex; gap:12px; align-items:flex-start;
  padding:12px 0; border-bottom:1px solid rgba(35,77,58,0.12);
  font-size:.96rem; color:#3a352c;
}
.amenity-col ul li .tick{
  flex:0 0 20px; height:20px; width:20px; border-radius:50%;
  background:var(--tea); color:var(--cream); font-size:.7rem;
  display:flex; align-items:center; justify-content:center; margin-top:2px;
}

/* ==========================================================================
   Gallery
   ========================================================================== */
.gallery-grid{
  display:grid; grid-template-columns:repeat(4, 1fr); grid-auto-rows:190px; gap:14px;
}
.gallery-grid figure{
  margin:0; overflow:hidden; border-radius:10px; cursor:zoom-in; position:relative;
}
.gallery-grid img{ width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.gallery-grid figure:hover img{ transform:scale(1.08); }
.gallery-grid .tall{ grid-row:span 2; }
.gallery-grid .wide{ grid-column:span 2; }

.lightbox{
  position:fixed; inset:0; background:rgba(11,18,32,0.92);
  display:flex; align-items:center; justify-content:center;
  z-index:1000; opacity:0; pointer-events:none; transition:opacity .25s ease;
  padding:40px;
}
.lightbox.active{ opacity:1; pointer-events:auto; }
.lightbox img{ max-width:90vw; max-height:85vh; border-radius:10px; box-shadow:0 30px 80px rgba(0,0,0,0.5); }
.lightbox-close{
  position:absolute; top:26px; right:32px; color:var(--cream); font-size:2rem;
  background:none; border:none; cursor:pointer; line-height:1;
}

/* ==========================================================================
   Location + contact
   ========================================================================== */
.loc-grid{
  display:grid; grid-template-columns:1.1fr 1fr; gap:44px; align-items:start;
}
.map-frame{
  border-radius:var(--radius); overflow:hidden; border:var(--edge); height:420px;
  background:#ddd;
}
.map-frame iframe{ width:100%; height:100%; border:0; }

.contact-card{
  background:var(--cream); border:1px solid rgba(35,77,58,0.12); border-radius:var(--radius);
  padding:30px;
}
.contact-info{ margin-bottom:24px; }
.contact-info li{
  display:flex; gap:14px; align-items:flex-start; padding:10px 0;
  font-size:.94rem;
}
.contact-info li .icon{ color:var(--tea); flex:0 0 20px; margin-top:2px; }
.contact-info a:hover{ color:var(--tea); text-decoration:underline; }

.form-row{ display:flex; gap:14px; }
.form-row .field{ flex:1; }
.field{ margin-bottom:16px; }
.field label{ display:block; font-size:.78rem; letter-spacing:.05em; text-transform:uppercase; color:#7a7262; margin-bottom:6px; }
.field input, .field textarea{
  width:100%; padding:12px 14px; border-radius:10px; border:1px solid rgba(35,77,58,0.22);
  font-family:var(--body); font-size:.95rem; background:#fff; color:var(--ink);
}
.field input:focus, .field textarea:focus{ border-color:var(--tea); }
.field textarea{ resize:vertical; min-height:96px; }

#formStatus{ margin-top:14px; font-size:.88rem; }
#formStatus.ok{ color:var(--tea); }
#formStatus.err{ color:var(--clay); }

/* ==========================================================================
   Footer
   ========================================================================== */
footer{ background:var(--ink); color:rgba(248,244,234,0.7); padding:56px 0 28px; }
.footer-top{
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:32px; padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.footer-brand .brand-mark{ font-size:1.5rem; }
.footer-links{ display:flex; gap:60px; flex-wrap:wrap; }
.footer-links h5{ color:var(--cream); font-size:.78rem; text-transform:uppercase; letter-spacing:.1em; margin-bottom:14px; }
.footer-links li{ margin-bottom:8px; font-size:.9rem; }
.footer-links a:hover{ color:var(--gold-soft); }
.footer-bottom{
  padding-top:24px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.8rem; color:rgba(248,244,234,0.45);
}

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */
.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px){
  .room-grid{ grid-template-columns:repeat(2,1fr); }
  .amenity-grid{ grid-template-columns:1fr; }
  .loc-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:repeat(3,1fr); }
  .hero-meta{ gap:24px; }
  .facts .container{ grid-template-columns:repeat(2,1fr); row-gap:24px; }
}

@media (max-width: 720px){
  .nav-links{
    position:fixed; inset:76px 0 0 0; background:var(--ink);
    flex-direction:column; padding:32px 24px; gap:22px;
    transform:translateX(100%); transition:transform .3s ease;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{ display:block; }
  .room-grid{ grid-template-columns:1fr; }
  .gallery-grid{ grid-template-columns:repeat(2,1fr); grid-auto-rows:150px; }
  .form-row{ flex-direction:column; }
  section{ padding:64px 0; }
  .hero-content{ padding:100px 0 60px; }
  .footer-top{ flex-direction:column; }
}