/* =========================================================
   TNF CAMPERS INDONESIA — design tokens
   Concept: a mountain's elevation profile, not a brand template.
   Palette pulled from pre-dawn summit light: charcoal rock,
   misty fog, ember sunrise, deep pine, lichen highlight.
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800&family=Work+Sans:wght@400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap');

:root{
  --ink:        #17181A;   /* near-black rock */
  --ink-soft:   #212327;
  --fog:        #9AA6A1;   /* misty grey-green */
  --fog-dim:    #5C6663;
  --parchment:  #EDE8DD;   /* light neutral */
  --ember:      #C1541F;   /* sunrise / ember accent */
  --ember-dim:  #7C3814;
  --pine:       #3A4D3E;   /* deep pine surface */
  --lichen:     #B8C93A;   /* contour-line highlight */

  --display: 'Big Shoulders Display', sans-serif;
  --body:    'Work Sans', sans-serif;
  --mono:    'IBM Plex Mono', monospace;

  --max: 1180px;
}

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

html{ scroll-behavior: smooth; }

body{
  background: var(--ink);
  color: var(--parchment);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

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

.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 32px; }

h1,h2,h3{
  font-family: var(--display);
  text-transform: uppercase;
  letter-spacing: 0.01em;
  line-height: 0.95;
  font-weight: 700;
}

.eyebrow{
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--lichen);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before{
  content:'';
  width: 22px; height: 1px;
  background: var(--lichen);
}

/* ---------- nav ---------- */
header.site{
  position: sticky; top:0; z-index: 50;
  background: rgba(23,24,26,0.88);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid rgba(154,166,161,0.18);
}
.nav{
  max-width: var(--max); margin:0 auto; padding: 18px 32px;
  display:flex; align-items:center; justify-content:space-between;
}
.brand{
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.brand span{ color: var(--ember); }
.navlinks{ display:flex; gap: 30px; font-size: 14px; letter-spacing: 0.03em; }
.navlinks a{
  position:relative; padding: 4px 0; color: var(--fog);
  transition: color .2s ease;
}
.navlinks a:hover, .navlinks a.active{ color: var(--parchment); }
.navlinks a.active::after{
  content:''; position:absolute; left:0; right:0; bottom:-2px;
  height:2px; background: var(--ember);
}
.navtoggle{ display:none; background:none; border:none; color:var(--parchment); font-size:22px; cursor:pointer; }

@media (max-width: 760px){
  .navlinks{
    position:absolute; top:100%; left:0; right:0;
    background: var(--ink-soft);
    flex-direction:column; padding: 18px 32px; gap: 16px;
    border-bottom: 1px solid rgba(154,166,161,0.18);
    display:none;
  }
  .navlinks.open{ display:flex; }
  .navtoggle{ display:block; }
}

/* ---------- ridge divider (signature structural device) ---------- */
.ridge{
  width:100%; height:56px; display:block;
  color: var(--ink);
}
.ridge path{ fill: currentColor; }
.ridge.on-pine{ color: var(--pine); }
.ridge.on-ink{ color: var(--ink); }
.ridge.on-parchment{ color: var(--parchment); }

/* ---------- elevation rail (scroll signature) ---------- */
#elevation-rail{
  position: fixed; right: 22px; top: 50%; transform: translateY(-50%);
  width: 64px; height: 46vh; max-height: 420px;
  z-index: 40; opacity: 0.9;
  pointer-events:none;
}
@media (max-width: 900px){ #elevation-rail{ display:none; } }
#elevation-rail svg{ width:100%; height:100%; overflow:visible; }
.rail-track{ fill:none; stroke: rgba(154,166,161,0.35); stroke-width:1.5; }
.rail-fill{ fill:none; stroke: var(--lichen); stroke-width:2; }
.rail-dot{ fill: var(--ember); }
.rail-label{
  font-family: var(--mono); font-size: 9px; fill: var(--fog);
  letter-spacing: 0.06em;
}

/* ---------- hero ---------- */
.hero{
  position: relative;
  padding: 150px 0 120px;
  background:
    radial-gradient(circle at 82% 8%, rgba(193,84,31,0.20), transparent 45%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink) 100%);
  overflow:hidden;
}
.hero .contours{
  position:absolute; inset:0; z-index:0; opacity:0.5;
}
.hero .wrap{ position:relative; z-index:1; }
.hero h1{
  font-size: clamp(48px, 8vw, 108px);
  max-width: 900px;
}
.hero h1 em{ font-style: normal; color: var(--ember); }
.hero p.lede{
  font-size: 19px; color: var(--fog); max-width: 520px; margin-top: 26px;
}
.hero .cta-row{ display:flex; gap:18px; margin-top: 42px; flex-wrap: wrap; }

.btn{
  font-family: var(--mono); font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
  padding: 14px 26px; border-radius: 2px; display:inline-flex; align-items:center; gap:10px;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}
.btn-primary{ background: var(--ember); color: var(--ink); }
.btn-primary:hover{ transform: translateY(-2px); background: #d9682f; }
.btn-ghost{ border: 1px solid var(--fog-dim); color: var(--parchment); }
.btn-ghost:hover{ border-color: var(--lichen); color: var(--lichen); transform: translateY(-2px); }

.hero-stats{
  margin-top: 70px; display:grid; grid-template-columns: repeat(4,1fr); gap: 24px;
  border-top: 1px solid rgba(154,166,161,0.2); padding-top: 28px;
}
.hero-stats .stat b{
  font-family: var(--display); font-size: 34px; display:block; color: var(--parchment);
}
.hero-stats .stat span{ font-family: var(--mono); font-size: 11px; color: var(--fog); letter-spacing: 0.06em; }
@media (max-width:700px){ .hero-stats{ grid-template-columns: repeat(2,1fr); } }

/* ---------- generic section ---------- */
section{ padding: 100px 0; position:relative; }
.section-pine{ background: var(--pine); color: var(--parchment); }
.section-parchment{ background: var(--parchment); color: var(--ink); }
.section-parchment .fog{ color: var(--fog-dim); }
.section-parchment .eyebrow{ color: var(--ember-dim); }
.section-parchment .eyebrow::before{ background: var(--ember-dim); }

h2.title{ font-size: clamp(32px, 5vw, 56px); max-width: 640px; }
p.fog{ color: var(--fog); }

/* ---------- grids ---------- */
.grid-3{ display:grid; grid-template-columns: repeat(3,1fr); gap: 28px; margin-top: 52px; }
.grid-2{ display:grid; grid-template-columns: repeat(2,1fr); gap: 28px; margin-top: 52px; }
@media (max-width:860px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.card{
  background: var(--ink-soft);
  border: 1px solid rgba(154,166,161,0.15);
  padding: 30px;
  position:relative;
}
.card .idx{ font-family: var(--mono); font-size: 12px; color: var(--lichen); }
.card h3{ margin-top: 14px; font-size: 26px; }
.card p{ color: var(--fog); margin-top: 10px; font-size: 15px; }

/* photo placeholder block: topo texture instead of grey box */
.photo-ph{
  aspect-ratio: 4/3; width:100%;
  background:
    repeating-radial-gradient(circle at 30% 30%, rgba(184,201,58,0.10) 0 2px, transparent 2px 14px),
    linear-gradient(160deg, #23261f, #14151a);
  border: 1px solid rgba(154,166,161,0.18);
  display:flex; align-items:flex-end; padding: 16px;
  position: relative;
}
.photo-ph span{
  font-family: var(--mono); font-size: 11px; color: var(--fog); letter-spacing: 0.05em;
}
.photo-ph.tall{ aspect-ratio: 3/4; }
.photo-ph.wide{ aspect-ratio: 16/9; }

/* trip card */
.trip-card{
  border: 1px solid rgba(154,166,161,0.15);
  background: var(--ink-soft);
  display:grid; grid-template-columns: 1fr 1.3fr;
  overflow:hidden; margin-bottom: 26px;
}
@media (max-width:760px){ .trip-card{ grid-template-columns:1fr; } }
.trip-card .info{ padding: 34px; }
.trip-meta{ display:flex; gap:20px; margin-top:16px; flex-wrap:wrap; }
.trip-meta div{ font-family: var(--mono); font-size:12px; color: var(--fog); }
.trip-meta b{ color: var(--parchment); display:block; font-size:15px; }
.tag{
  display:inline-block; font-family: var(--mono); font-size: 11px;
  letter-spacing: 0.06em; text-transform: uppercase;
  padding: 5px 10px; border: 1px solid var(--lichen); color: var(--lichen);
  margin-top: 4px;
}
.tag.featured{ background: var(--ember); color: var(--ink); border-color: var(--ember); }

/* quote / testimonial */
.quote{
  border-left: 2px solid var(--ember);
  padding-left: 24px; font-size: 20px; font-style: normal; max-width: 640px;
}
.quote footer{ margin-top: 14px; font-family: var(--mono); font-size: 12px; color: var(--fog); }

/* footer */
footer.site{
  background: var(--ink); border-top: 1px solid rgba(154,166,161,0.18);
  padding: 60px 0 32px;
}
.foot-grid{ display:flex; justify-content:space-between; flex-wrap:wrap; gap: 30px; }
.foot-col h4{ font-family: var(--mono); font-size: 12px; letter-spacing:0.08em; color: var(--fog); text-transform:uppercase; margin-bottom: 14px; }
.foot-col a{ display:block; font-size: 14px; color: var(--parchment); margin-bottom: 8px; }
.foot-col a:hover{ color: var(--lichen); }
.foot-bottom{
  margin-top: 50px; padding-top: 20px; border-top: 1px solid rgba(154,166,161,0.12);
  display:flex; justify-content:space-between; font-family: var(--mono); font-size: 11px; color: var(--fog-dim);
  flex-wrap: wrap; gap: 10px;
}

/* form */
form.contact-form{ margin-top: 40px; display:grid; gap:20px; max-width: 560px; }
.field label{ font-family: var(--mono); font-size: 12px; letter-spacing:0.05em; color: var(--fog); text-transform:uppercase; display:block; margin-bottom:8px; }
.field input, .field textarea, .field select{
  width:100%; background: transparent; border:none; border-bottom: 1px solid rgba(154,166,161,0.4);
  color: var(--parchment); font-family: var(--body); font-size: 16px; padding: 10px 2px; outline:none;
}
.field input:focus, .field textarea:focus, .field select:focus{ border-color: var(--lichen); }
.field select option{ color: #000; }

/* reveal-on-scroll */
.reveal{ opacity:0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in{ opacity:1; transform:none; }

@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  html{ scroll-behavior:auto; }
}

:focus-visible{ outline: 2px solid var(--lichen); outline-offset: 3px; }