/* ============================================================
   BUDDHAHUG — shared stylesheet
   Fonts: Playfair Display (headings) / Inter (body) / IBM Plex Mono (data)
   ============================================================ */

:root{
  --ink:        #22261F;
  --ink-soft:   #5B6255;
  --cream:      #FAF8F2;
  --cream-deep: #EFE9DA;
  --paper:      #FFFFFF;
  --forest:     #2E4A3C;
  --forest-deep:#1E3129;
  --burgundy:   #7C3630;
  --burgundy-deep:#5A2721;
  --gold:       #B08B3E;
  --slate:      #4C6B78;
  --line:       rgba(34,38,31,0.12);
  --shadow:     0 10px 28px rgba(34,38,31,0.10);

  /* traditional Tibetan Buddhist prayer-flag order: blue, white, red, green, yellow */
  --flag-blue:  #1B4B6B;
  --flag-white: #F5F3EC;
  --flag-red:   #9C3B32;
  --flag-green: #3F6B49;
  --flag-yellow:#C79A3D;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0; background:var(--cream); color:var(--ink);
  font-family:'Inter',sans-serif; font-size:16px; line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
html, body{ overflow-x:hidden; }
h1,h2,h3,.serif{ font-family:'Playfair Display',serif; font-weight:700; letter-spacing:-0.01em; margin:0; }
.mono{ font-family:'IBM Plex Mono',monospace; letter-spacing:0.02em; }
.eyebrow{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; letter-spacing:0.14em; text-transform:uppercase; color:var(--burgundy); font-weight:500; }
a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }
.container{ max-width:1280px; margin:0 auto; padding:0 24px; }
@media (min-width:640px){ .container{ padding:0 32px; } }

/* ---------- photo placeholders ---------- */
.ph{ position:relative; overflow:hidden; background-size:cover; background-position:center; }
.ph-a{ background-image:linear-gradient(150deg,#7FA3AC 0%,#4E7481 45%,#2E4A54 100%); }
.ph-b{ background-image:linear-gradient(145deg,#D6B06B 0%,#B07E3E 45%,#7A5327 100%); }
.ph-c{ background-image:linear-gradient(150deg,#8FAE7C 0%,#5C7C4C 45%,#3A5330 100%); }
.ph-d{ background-image:linear-gradient(145deg,#C99372 0%,#A0693F 45%,#6B4326 100%); }
.ph-e{ background-image:linear-gradient(150deg,#93A9BE 0%,#5D7B92 45%,#3A5164 100%); }
.ph-f{ background-image:linear-gradient(145deg,#E0B85C 0%,#B9862F 45%,#7E5A1E 100%); }
.ph-g{ background-image:linear-gradient(150deg,#A98CB0 0%,#7A5C82 45%,#503A57 100%); }

/* ---------- buttons ---------- */
.btn{ display:inline-flex; align-items:center; gap:8px; padding:13px 26px; font-size:0.9rem; font-weight:600; border-radius:999px; transition:all .2s ease; white-space:nowrap; border:1px solid transparent; cursor:pointer; font-family:'Inter',sans-serif; }
.btn-primary{ background:var(--burgundy); color:#fff; box-shadow:0 6px 16px rgba(124,54,48,0.32); }
.btn-primary:hover{ background:var(--burgundy-deep); transform:translateY(-1px); }
.btn-outline{ border-color:var(--ink); color:var(--ink); }
.btn-outline:hover{ background:var(--ink); color:var(--cream); }
.btn-light{ background:#fff; color:var(--ink); }
.btn-light:hover{ background:var(--gold); color:#fff; }
.btn-ghost{ border-color:rgba(255,255,255,0.6); color:#fff; }
.btn-ghost:hover{ background:rgba(255,255,255,0.15); border-color:#fff; }
.btn-sm{ padding:9px 18px; font-size:0.8rem; }
.btn-block{ width:100%; justify-content:center; }

/* ---------- cards ---------- */
.card{ background:var(--paper); border-radius:12px; box-shadow:var(--shadow); overflow:hidden; border:1px solid var(--line); transition:transform .2s ease, box-shadow .2s ease; }
.card:hover{ transform:translateY(-4px); box-shadow:0 16px 32px rgba(34,38,31,0.15); }
.pill{ font-family:'IBM Plex Mono',monospace; font-size:0.72rem; padding:5px 12px; border-radius:999px; background:var(--cream-deep); color:var(--ink); display:inline-block; }
.stars{ color:var(--gold); font-size:0.85rem; letter-spacing:1px; }
.price-old{ text-decoration:line-through; color:var(--ink-soft); font-size:0.8rem; margin-right:6px; }
.price-new{ font-weight:700; color:var(--burgundy-deep); font-size:1.02rem; }

.band-forest{ background:var(--forest); color:#F2EFE4; }
.band-forest .eyebrow{ color:var(--gold); }

.grid{ display:grid; gap:24px; }
.grid-2{ grid-template-columns:1fr 1fr; }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
.grid-auto{ grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); }
.grid-auto-sm{ grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); }
@media (max-width:860px){ .grid-2, .grid-3, .grid-4{ grid-template-columns:1fr; } }
@media (min-width:640px) and (max-width:860px){ .grid-3, .grid-4{ grid-template-columns:repeat(2,1fr); } }

/* ============================================================
   PRAYER-FLAG STRIP — traditional 5-color order: blue,white,red,green,yellow
   ============================================================ */
.flag-strip{ display:flex; height:6px; width:100%; }
.flag-strip span{ flex:1; }
.flag-strip span:nth-child(5n+1){ background:var(--flag-blue); }
.flag-strip span:nth-child(5n+2){ background:var(--flag-white); }
.flag-strip span:nth-child(5n+3){ background:var(--flag-red); }
.flag-strip span:nth-child(5n+4){ background:var(--flag-green); }
.flag-strip span:nth-child(5n+5){ background:var(--flag-yellow); }

/* bunting: small triangular flags on a line, used once as a section motif */
.bunting{ display:block; width:100%; height:46px; }
.bunting .flag{ }
.bunting .f0{ fill:var(--flag-blue); } .bunting .f1{ fill:var(--flag-white); } .bunting .f2{ fill:var(--flag-red); } .bunting .f3{ fill:var(--flag-green); } .bunting .f4{ fill:var(--flag-yellow); }

/* ---------- top utility line ---------- */
.topline{ background:var(--forest-deep); color:rgba(242,239,228,0.85); font-size:0.78rem; }
.topline .container{ display:flex; justify-content:space-between; align-items:center; height:38px; }

/* ---------- header / nav ---------- */
header{ position:sticky; top:0; z-index:70; background:rgba(250,248,242,0.97); backdrop-filter:blur(8px); border-bottom:1px solid var(--line); transition:background .2s ease, box-shadow .2s ease, border-color .2s ease; }
header.is-scrolled{ background:rgba(250,248,242,0.99); box-shadow:0 8px 24px rgba(34,38,31,0.08); }
.nav-row{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.logo{ font-family:'Playfair Display',serif; font-weight:700; font-style:italic; font-size:1.5rem; }
nav.main{ display:flex; align-items:center; gap:28px; }
nav.main > div{ position:relative; padding:28px 0; }
nav.main > div > a, nav.main > a{ font-size:0.9rem; font-weight:600; display:flex; align-items:center; gap:5px; }
nav.main a.active,
nav.main a.active-anchor,
.mobile-panel a.active,
.mobile-panel a.active-anchor{ color:var(--burgundy); }
.mega{ position:absolute; top:100%; left:0; background:var(--paper); border:1px solid var(--line); border-radius:10px; box-shadow:0 20px 40px rgba(34,38,31,0.18); padding:18px; min-width:250px; opacity:0; visibility:hidden; transform:translateY(6px); transition:all .18s ease; }
nav.main > div:hover .mega{ opacity:1; visibility:visible; transform:translateY(0); }
.mega a{ display:block; padding:9px 10px; font-size:0.86rem; font-weight:400; border-radius:8px; color:var(--ink-soft); }
.mega a:hover{ background:var(--cream-deep); color:var(--ink); }
.nav-actions{ display:flex; gap:12px; align-items:center; }
.wa-icon{ width:38px; height:38px; border-radius:50%; background:var(--cream-deep); display:flex; align-items:center; justify-content:center; }

/* ---------- mobile nav (pure CSS checkbox hack) ---------- */
#nav-toggle{ display:none; }
.burger{ display:none; width:42px; height:42px; border-radius:8px; background:var(--cream-deep); align-items:center; justify-content:center; cursor:pointer; }
.burger span, .burger span::before, .burger span::after{ content:""; display:block; width:20px; height:2px; background:var(--ink); position:relative; transition:all .2s ease; }
.burger span::before{ position:absolute; top:-6px; } .burger span::after{ position:absolute; top:6px; }
.mobile-panel{ display:none; position:fixed; top:0; right:0; bottom:0; left:auto; width:min(82vw,340px); z-index:90; background:var(--cream); overflow-y:auto; padding:20px 24px 60px; box-shadow:-18px 0 40px rgba(34,38,31,0.18); transform:translateX(100%); transition:transform .25s ease; }
.mobile-panel-head{ display:flex; justify-content:space-between; align-items:center; height:76px; }
.mobile-panel a{ display:block; padding:14px 4px; font-size:1rem; font-weight:600; border-bottom:1px solid var(--line); }
.mobile-panel details{ border-bottom:1px solid var(--line); }
.mobile-panel details summary{ padding:14px 4px; font-size:1rem; font-weight:600; cursor:pointer; list-style:none; }
.mobile-panel details summary::-webkit-details-marker{ display:none; }
.mobile-panel details a{ padding-left:16px; font-weight:400; font-size:0.94rem; border-bottom:none; }
.mobile-panel .btn{ margin-top:20px; }

@media (max-width:900px){
  nav.main, .nav-actions .hide-mobile{ display:none; }
  .burger{ display:flex; }
  #nav-toggle:checked ~ .mobile-panel{ display:block; transform:translateX(0); }
}

/* ---------- hero slider ---------- */
.hero-slider{ position:relative; }
.hero-slide{ position:absolute; inset:0; opacity:0; transition:opacity 900ms ease-in-out; background-repeat:no-repeat; background-size:cover; background-position:center; will-change:opacity; }
.hero-slide.is-active{ opacity:1; z-index:1; }
.hero-dots{ display:flex; gap:8px; align-items:center; }
.hero-dot{ width:22px; height:3px; border:0; border-radius:2px; background:rgba(255,255,255,0.35); padding:0; cursor:pointer; transition:opacity .2s ease, transform .2s ease, background-color .2s ease; }
.hero-dot.is-active{ background:#fff; opacity:1; transform:scaleX(1); }
.hero-dot:focus-visible{ outline:2px solid #fff; outline-offset:4px; }

/* ---------- css-only tabs ---------- */
.tab-input{ position:absolute; left:-9999px; width:1px; height:1px; opacity:0; pointer-events:none; overflow:hidden; }
.tab-label{ cursor:pointer; padding:11px 22px; border-radius:999px; font-weight:600; font-size:0.88rem; border:1px solid var(--line); color:var(--ink-soft); }
#tab-nepal:checked ~ .tab-bar label[for="tab-nepal"],
#tab-tibet:checked ~ .tab-bar label[for="tab-tibet"]{ background:var(--forest); color:#fff; border-color:var(--forest); }
.tab-panel{ display:none; }
#tab-nepal:checked ~ #panel-nepal{ display:grid; }
#tab-tibet:checked ~ #panel-tibet{ display:grid; }

/* ---------- faq ---------- */
details.faq{ border-bottom:1px solid var(--line); padding:20px 0; }
details.faq summary{ cursor:pointer; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px; font-family:'Playfair Display',serif; font-size:1.04rem; font-weight:700; }
details.faq summary::-webkit-details-marker{ display:none; }
details.faq summary::after{ content:"+"; font-size:1.3rem; color:var(--burgundy); flex:none; }
details.faq[open] summary::after{ content:"\2013"; }
details.faq p{ font-size:0.92rem; color:var(--ink-soft); line-height:1.7; margin:12px 0 0; max-width:70ch; }

/* ---------- floating actions ---------- */
.wa-float{ position:fixed; right:20px; bottom:20px; z-index:80; width:56px; height:56px; border-radius:50%; background:#3F9450; color:#fff; display:flex; align-items:center; justify-content:center; box-shadow:0 8px 22px rgba(0,0,0,0.25); }
.inquiry-tab{ position:fixed; right:-44px; top:52%; transform:translateY(-50%) rotate(-90deg); transform-origin:right center; background:var(--burgundy); color:#fff; padding:10px 20px; font-size:0.8rem; font-weight:600; border-radius:8px 8px 0 0; z-index:79; box-shadow:0 -4px 14px rgba(0,0,0,0.15); }
@media (max-width:760px){ .inquiry-tab{ display:none; } }

/* ---------- progressive enhancements ---------- */
.scroll-progress{ position:fixed; top:0; left:0; width:100%; height:3px; z-index:101; pointer-events:none; transform-origin:left center; transform:scaleX(0); background:linear-gradient(90deg,var(--gold),var(--burgundy)); }
.back-to-top{ position:fixed; right:20px; bottom:92px; z-index:81; border:1px solid var(--line); background:var(--paper); color:var(--ink); border-radius:999px; padding:12px 16px; box-shadow:0 10px 22px rgba(34,38,31,0.14); font-family:'Inter',sans-serif; font-size:0.8rem; font-weight:600; opacity:0; transform:translateY(12px); pointer-events:none; transition:opacity .2s ease, transform .2s ease, box-shadow .2s ease; }
.back-to-top.is-visible{ opacity:1; transform:translateY(0); pointer-events:auto; }
.back-to-top:hover{ box-shadow:0 14px 26px rgba(34,38,31,0.18); }
body.menu-open{ overflow:hidden; }
.reveal-target{ transition:opacity .6s ease, transform .6s ease; }
html.js .reveal-target{ opacity:0; transform:translateY(18px); }
html.js .reveal-target.is-visible{ opacity:1; transform:none; }

@media (max-width:860px){
  .split-layout,
  .trip-layout{ grid-template-columns:1fr !important; }
}

/* ---------- form fields ---------- */
input, select, textarea{ font-family:'Inter',sans-serif; font-size:0.92rem; padding:13px 16px; border-radius:10px; border:1px solid var(--line); width:100%; background:#fff; color:var(--ink); }
input[type=email].pill-input, input[type=text].pill-input{ border-radius:999px; padding:14px 18px; }
label.field-label{ font-size:0.82rem; font-weight:600; color:var(--ink-soft); display:block; margin-bottom:6px; }
textarea{ resize:vertical; min-height:120px; }

/* ---------- footer ---------- */
footer{ padding:56px 0 28px; background:var(--forest-deep); color:rgba(242,239,228,0.7); }
footer .eyebrow{ color:var(--gold); }
footer a:hover{ color:#fff; }

/* ---------- utility ---------- */
.section{ padding:88px 0; }
.section-sm{ padding:56px 0; }
@media (max-width:640px){ .section{ padding:56px 0; } .section-sm{ padding:40px 0; } }
.center{ text-align:center; }
.hide-mobile{ }
@media (max-width:640px){ .hide-mobile{ display:none; } }