/* =========================================================
   Design system
   Palette drawn from the Rajgir landscape: quartzite pale,
   dry-deciduous dark, marigold, sal green, lac red.
   ========================================================= */

:root{
  --ink:        #0F2721;
  --ink-2:      #17372F;
  --ink-3:      #1F4A3E;
  --limestone:  #E8EBE3;
  --limestone-2:#DDE2D8;
  --paper:      #FFFFFF;
  --marigold:   #E4A11B;
  --marigold-d: #C4870C;
  --sal:        #2E6B4E;
  --lac:        #A93226;
  --slate:      #5D6E66;
  --hairline:   rgba(15,39,33,.14);
  --hairline-l: rgba(232,235,227,.18);

  --display: "Bricolage Grotesque", "Noto Sans Devanagari", Georgia, serif;
  --body:    "Karla", "Noto Sans Devanagari", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono:    "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --wrap: 1180px;
  --gut: clamp(18px, 4vw, 44px);
  --sec: clamp(64px, 9vw, 128px);
  --r: 3px;
}

*,*::before,*::after{ box-sizing:border-box }

html{ -webkit-text-size-adjust:100% }

body{
  margin:0;
  background:var(--limestone);
  color:var(--ink);
  font-family:var(--body);
  font-size:17px;
  line-height:1.65;
  font-synthesis-weight:none;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block }
a{ color:inherit }

h1,h2,h3,h4{
  font-family:var(--display);
  font-weight:600;
  line-height:1.03;
  letter-spacing:-.022em;
  margin:0;
  font-variation-settings:"wdth" 88;
}

h1{ font-size:clamp(2.6rem, 6.4vw, 5.1rem) }
h2{ font-size:clamp(2rem, 4.2vw, 3.3rem) }
h3{ font-size:clamp(1.25rem, 2vw, 1.6rem); letter-spacing:-.012em }
p{ margin:0 0 1.05em }
:lang(hi), .hi{ font-family:"Noto Sans Devanagari", var(--body); letter-spacing:0 }

.wrap{ width:min(100% - var(--gut)*2, var(--wrap)); margin-inline:auto }
.narrow{ max-width:64ch }

/* ---- utility type ------------------------------------------------ */
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--sal);
  margin:0 0 18px;
  display:flex; align-items:center; gap:12px;
}
.eyebrow::before{
  content:""; width:26px; height:1px; background:var(--marigold); flex:none;
}
.on-dark .eyebrow{ color:var(--marigold) }
.on-dark .eyebrow::before{ background:var(--marigold) }

.lede{ font-size:clamp(1.05rem,1.5vw,1.28rem); color:var(--slate); line-height:1.55 }
.on-dark .lede{ color:rgba(232,235,227,.76) }

.mono{ font-family:var(--mono); font-size:.76rem; letter-spacing:.08em; text-transform:uppercase }

/* ---- buttons ----------------------------------------------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--mono); font-size:.78rem; letter-spacing:.1em; text-transform:uppercase;
  padding:15px 26px; border-radius:var(--r); text-decoration:none;
  border:1px solid transparent; cursor:pointer;
  transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
}
.btn:hover{ transform:translateY(-2px) }
.btn-primary{ background:var(--marigold); color:var(--ink); font-weight:700 }
.btn-primary:hover{ background:#F2B12A }
.btn-ghost{ border-color:currentColor; background:transparent }
.on-dark .btn-ghost{ color:var(--limestone); border-color:rgba(232,235,227,.42) }
.on-dark .btn-ghost:hover{ background:rgba(232,235,227,.1) }
.btn-ghost:hover{ background:rgba(15,39,33,.06) }
.btn .arw{ transition:transform .18s ease }
.btn:hover .arw{ transform:translateX(4px) }

/* =========================================================
   Header
   ========================================================= */
.hdr{
  position:fixed; inset:0 0 auto 0; z-index:80;
  padding:16px 0;
  transition:background .3s ease, box-shadow .3s ease, padding .3s ease;
}
.hdr.stuck{
  background:rgba(15,39,33,.97);
  padding:10px 0;
  box-shadow:0 1px 0 rgba(232,235,227,.12);
  backdrop-filter:saturate(1.2) blur(6px);
}
.hdr-in{ display:flex; align-items:center; gap:22px }

.brand{ display:flex; align-items:center; gap:12px; text-decoration:none; color:var(--limestone); margin-right:auto }
.brand-mark{ width:42px; height:42px; flex:none; border-radius:50%; background:var(--limestone); padding:3px; object-fit:contain }
.brand-txt{ display:flex; flex-direction:column; line-height:1.1 }
.brand-txt b{ font-family:var(--display); font-size:1.22rem; letter-spacing:.01em; font-variation-settings:"wdth" 82 }
.brand-txt span{ font-family:var(--mono); font-size:.6rem; letter-spacing:.18em; text-transform:uppercase; color:rgba(232,235,227,.62); margin-top:3px }

.nav{ display:flex; align-items:center; gap:2px }
.nav a{
  text-decoration:none; color:rgba(232,235,227,.82);
  font-size:.87rem; padding:9px 13px; border-radius:var(--r);
  transition:color .16s ease, background .16s ease;
}
.nav a:hover{ color:var(--limestone); background:rgba(232,235,227,.09) }
.nav a[aria-current]{ color:var(--marigold) }

.hdr .btn{ padding:12px 18px }

.burger{
  display:none; width:44px; height:40px; border:1px solid rgba(232,235,227,.35);
  background:transparent; border-radius:var(--r); cursor:pointer; padding:0;
}
.burger span{ display:block; width:18px; height:1.5px; background:var(--limestone); margin:4px auto }

/* =========================================================
   Hero — the ridge
   ========================================================= */
.hero{ position:relative; background:var(--ink); color:var(--limestone); overflow:hidden; isolation:isolate }
.hero-photo{
  position:absolute; inset:0; z-index:-2;
  background-size:cover; background-position:center 35%;
  filter:saturate(.86) contrast(1.04);
  transform:scale(1.06);
  animation:driftIn 20s ease-out forwards;
}
@keyframes driftIn{ to{ transform:scale(1) } }
.hero::after{
  content:""; position:absolute; inset:0; z-index:-1;
  background:
    linear-gradient(180deg, rgba(15,39,33,.82) 0%, rgba(15,39,33,.40) 38%, rgba(15,39,33,.88) 78%, var(--ink) 100%),
    radial-gradient(120% 80% at 12% 82%, rgba(15,39,33,.75), transparent 60%);
}
.hero-in{ padding:clamp(150px,20vh,220px) 0 0; position:relative }

.hero h1{ max-width:15ch; text-wrap:balance }
.hero h1 em{ font-style:normal; color:var(--marigold) }
.hero .lede{ max-width:52ch; margin-top:24px }
.hero-cta{ display:flex; flex-wrap:wrap; gap:12px; margin-top:34px }

/* layered ridge silhouettes */
.ridges{ position:absolute; inset:auto 0 0 0; z-index:-1; pointer-events:none; line-height:0 }
.ridges svg{ width:100%; height:auto; display:block }
.ridge-far{ opacity:.34 }
.ridge-mid{ opacity:.6; margin-top:-6%
}

/* ledger strip */
.ledger{
  margin-top:clamp(56px,9vh,110px);
  border-top:1px solid var(--hairline-l);
  display:grid; grid-template-columns:repeat(4,1fr);
}
.ledger div{ padding:22px 22px 26px; border-right:1px solid var(--hairline-l) }
.ledger div:last-child{ border-right:0 }
.ledger div:first-child{ padding-left:0 }
.ledger b{
  display:block; font-family:var(--display); font-size:clamp(1.7rem,3vw,2.5rem);
  font-weight:600; line-height:1; color:var(--marigold); font-variation-settings:"wdth" 80;
}
.ledger span{ display:block; margin-top:9px; font-size:.82rem; color:rgba(232,235,227,.62); line-height:1.4 }

/* rescue thread */
.rescue-bar{
  background:var(--lac); color:#fff;
  font-family:var(--mono); font-size:.76rem; letter-spacing:.09em; text-transform:uppercase;
  padding:11px 0;
}
.rescue-bar .wrap{ display:flex; flex-wrap:wrap; align-items:center; gap:8px 18px; justify-content:center; text-align:center }
.rescue-bar a{ color:#fff; font-weight:700 }
.rescue-bar .dot{ width:7px; height:7px; border-radius:50%; background:#fff; animation:pulse 2.2s infinite }
@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:.28} }

/* =========================================================
   Sections
   ========================================================= */
.sec{ padding:var(--sec) 0 }
.sec-dark{ background:var(--ink); color:var(--limestone) }
.sec-paper{ background:var(--paper) }

.sec-head{ display:grid; grid-template-columns:1.1fr .9fr; gap:40px; align-items:end; margin-bottom:56px }
.sec-head h2{ text-wrap:balance }
.sec-head .lede{ padding-bottom:6px }

/* ridge divider */
.divider{ line-height:0; color:var(--ink) }
.divider svg{ width:100%; height:auto; display:block }

/* ---- work cards -------------------------------------------------- */
.work{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--hairline) }
.work article{
  background:var(--limestone); padding:38px 34px 34px;
  transition:background .25s ease;
  position:relative;
}
.sec-paper .work article{ background:var(--paper) }
.work article:hover{ background:var(--ink); color:var(--limestone) }
.work article:hover .work-code{ color:var(--marigold) }
.work article:hover .lede{ color:rgba(232,235,227,.74) }
.work article:hover li{ color:rgba(232,235,227,.66); border-color:var(--hairline-l) }
.work-code{
  font-family:var(--mono); font-size:.72rem; letter-spacing:.2em; color:var(--sal);
  display:block; margin-bottom:16px;
}
.work h3{ margin-bottom:14px; max-width:18ch }
.work ul{ list-style:none; margin:22px 0 0; padding:0 }
.work li{
  font-family:var(--mono); font-size:.74rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--slate); padding:10px 0; border-top:1px solid var(--hairline);
}

/* ---- campaigns --------------------------------------------------- */
.camp{ display:grid; gap:1px; background:var(--hairline-l) }
.camp-row{
  background:var(--ink); display:grid; grid-template-columns:130px 1.35fr 1fr 200px;
  gap:28px; align-items:center; padding:26px 4px;
  transition:background .22s ease;
}
.camp-row:hover{ background:var(--ink-2) }
.camp-ref{ font-family:var(--mono); font-size:.72rem; letter-spacing:.1em; color:var(--marigold) }
.camp-row h3{ font-size:1.2rem; line-height:1.25 }
.camp-row p{ margin:0; font-size:.9rem; color:rgba(232,235,227,.6) }
.camp-where{ font-family:var(--mono); font-size:.7rem; letter-spacing:.09em; text-transform:uppercase; color:rgba(232,235,227,.5) }
.camp-thumb{ height:96px; overflow:hidden; border-radius:var(--r) }
.camp-thumb img{ width:100%; height:100%; object-fit:cover; transition:transform .5s ease }
.camp-row:hover .camp-thumb img{ transform:scale(1.06) }

/* ---- field notes ------------------------------------------------- */
.notes{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--hairline) }
.note{
  background:var(--limestone); padding:34px 32px; text-decoration:none; display:block;
  transition:background .22s ease;
}
.sec-paper .note{ background:var(--paper) }
.note:hover{ background:var(--limestone-2) }
.note-meta{ display:flex; gap:16px; align-items:center; margin-bottom:16px }
.note-meta time{ font-family:var(--mono); font-size:.72rem; letter-spacing:.08em; color:var(--slate) }
.tag{
  font-family:var(--mono); font-size:.66rem; letter-spacing:.13em; text-transform:uppercase;
  background:var(--sal); color:#fff; padding:4px 9px; border-radius:var(--r);
}
.note h3{ margin-bottom:12px; font-size:1.28rem; line-height:1.24 }
.note p{ color:var(--slate); font-size:.95rem; margin:0 }

/* ---- events ------------------------------------------------------ */
.events{ border-top:1px solid var(--hairline) }
.ev{
  display:grid; grid-template-columns:92px 1fr auto; gap:26px; align-items:center;
  padding:22px 6px; border-bottom:1px solid var(--hairline);
  transition:padding-left .22s ease, background .22s ease;
}
.ev:hover{ padding-left:16px; background:rgba(46,107,78,.06) }
.ev-date{ text-align:center; border-right:1px solid var(--hairline); padding-right:20px }
.ev-date b{ display:block; font-family:var(--display); font-size:2rem; line-height:1; font-variation-settings:"wdth" 80 }
.ev-date span{ font-family:var(--mono); font-size:.66rem; letter-spacing:.18em; color:var(--slate) }
.ev h3{ font-size:1.12rem; margin-bottom:5px }
.ev p{ margin:0; font-size:.86rem; color:var(--slate) }
.pill{
  font-family:var(--mono); font-size:.68rem; letter-spacing:.1em; text-transform:uppercase;
  padding:7px 13px; border-radius:99px; white-space:nowrap;
}
.pill.open{ background:rgba(46,107,78,.14); color:var(--sal) }
.pill.soon{ background:rgba(15,39,33,.08); color:var(--slate) }

/* ---- about split ------------------------------------------------- */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:clamp(36px,6vw,84px); align-items:center }
.split-media{ position:relative }
.split-media img{ width:100%; aspect-ratio:4/5; object-fit:cover; border-radius:var(--r) }
.stamp{
  position:absolute; right:-18px; bottom:26px;
  background:var(--marigold); color:var(--ink);
  font-family:var(--mono); font-size:.7rem; letter-spacing:.14em; text-transform:uppercase;
  padding:14px 18px; line-height:1.5; border-radius:var(--r); max-width:180px;
}
.stamp b{ display:block; font-family:var(--display); font-size:1.5rem; letter-spacing:0 }

/* ---- team -------------------------------------------------------- */
.team{ display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:var(--hairline) }
.team figure{ margin:0; background:var(--limestone); padding:0 }
.sec-paper .team figure{ background:var(--paper) }
.team img{ width:100%; aspect-ratio:1/1; object-fit:cover; filter:grayscale(1) contrast(1.05); transition:filter .35s ease }
.team figure:hover img{ filter:grayscale(0) }
.team figcaption{ padding:16px 16px 22px }
.team figcaption b{ display:block; font-size:.94rem; line-height:1.3 }
.team figcaption span{ font-family:var(--mono); font-size:.66rem; letter-spacing:.09em; text-transform:uppercase; color:var(--slate) }

/* ---- gallery ----------------------------------------------------- */
.gal{ display:grid; grid-template-columns:repeat(3,1fr); gap:14px }
.gal figure{ margin:0; position:relative; overflow:hidden; border-radius:var(--r) }
.gal img{ width:100%; aspect-ratio:4/3; object-fit:cover; transition:transform .5s ease }
.gal figure:hover img{ transform:scale(1.05) }
.gal figcaption{
  position:absolute; inset:auto 0 0 0; padding:16px;
  background:linear-gradient(transparent, rgba(15,39,33,.86));
  color:var(--limestone); font-family:var(--mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
}

/* ---- list table -------------------------------------------------- */
.rows{ border-top:1px solid var(--hairline) }
.row{
  display:grid; grid-template-columns:90px 150px 1fr; gap:24px; align-items:baseline;
  padding:22px 6px; border-bottom:1px solid var(--hairline);
}
.row .yr{ font-family:var(--mono); font-size:.78rem; color:var(--marigold-d); letter-spacing:.08em }
.row .kind{ font-family:var(--mono); font-size:.7rem; letter-spacing:.12em; text-transform:uppercase; color:var(--slate) }
.row h3{ font-size:1.1rem; margin-bottom:5px }
.row p{ margin:0; font-size:.9rem; color:var(--slate) }

/* ---- CTA band ---------------------------------------------------- */
.band{ background:var(--sal); color:#fff; padding:clamp(56px,8vw,96px) 0 }
.band h2{ max-width:18ch; text-wrap:balance }
.band .lede{ color:rgba(255,255,255,.82); max-width:50ch; margin-top:18px }
.band-grid{ display:grid; grid-template-columns:1.1fr .9fr; gap:44px; align-items:center }
.band .btn-ghost{ color:#fff; border-color:rgba(255,255,255,.45) }
.band .btn-ghost:hover{ background:rgba(255,255,255,.12) }

/* ---- forms ------------------------------------------------------- */
.field{ margin-bottom:20px }
.field label{
  display:block; font-family:var(--mono); font-size:.7rem; letter-spacing:.13em;
  text-transform:uppercase; color:var(--slate); margin-bottom:8px;
}
.field input,.field textarea,.field select{
  width:100%; font:inherit; font-size:.96rem; color:var(--ink);
  background:var(--paper); border:1px solid var(--hairline); border-radius:var(--r);
  padding:13px 15px;
}
.field textarea{ min-height:150px; resize:vertical }
.field input:focus,.field textarea:focus{ outline:2px solid var(--sal); outline-offset:1px; border-color:transparent }
.hp{ position:absolute; left:-9999px }
.msg{ padding:14px 18px; border-radius:var(--r); margin-bottom:24px; font-size:.94rem }
.msg.ok{ background:rgba(46,107,78,.12); color:var(--sal); border:1px solid rgba(46,107,78,.3) }
.msg.no{ background:rgba(169,50,38,.1); color:var(--lac); border:1px solid rgba(169,50,38,.3) }

/* ---- page header ------------------------------------------------- */
.phead{ background:var(--ink); color:var(--limestone); padding:clamp(140px,17vh,190px) 0 clamp(56px,8vh,86px) }
.phead h1{ font-size:clamp(2.3rem,5vw,4rem); max-width:17ch }
.phead .lede{ max-width:56ch; margin-top:20px }

/* ---- contact ----------------------------------------------------- */
.contact-grid{ display:grid; grid-template-columns:1fr .85fr; gap:clamp(36px,6vw,80px) }
.cblock{ border-top:1px solid var(--hairline); padding:22px 0 }
.cblock .mono{ color:var(--slate); display:block; margin-bottom:10px }
.cblock a{ text-decoration:none; border-bottom:1px solid var(--hairline) }
.cblock a:hover{ border-color:var(--sal); color:var(--sal) }

/* =========================================================
   Footer
   ========================================================= */
.ftr{ background:var(--ink); color:rgba(232,235,227,.68); padding:clamp(56px,8vw,88px) 0 0; font-size:.9rem }
.ftr-grid{ display:grid; grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:40px }
.ftr h4{ font-family:var(--mono); font-size:.7rem; letter-spacing:.16em; text-transform:uppercase; color:var(--marigold); margin:0 0 18px; font-weight:400 }
.ftr ul{ list-style:none; margin:0; padding:0 }
.ftr li{ margin-bottom:10px }
.ftr a{ text-decoration:none; color:inherit }
.ftr a:hover{ color:var(--limestone) }
.ftr .brand{ margin-bottom:18px }
.ftr-note{ max-width:38ch; line-height:1.6 }
.ftr-base{
  margin-top:56px; border-top:1px solid var(--hairline-l); padding:22px 0 28px;
  display:flex; flex-wrap:wrap; gap:12px 26px; justify-content:space-between;
  font-family:var(--mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
}
.ftr-base a{ color:var(--marigold) }

/* =========================================================
   Motion
   ========================================================= */
.rv{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s cubic-bezier(.2,.7,.3,1) }
.rv.in{ opacity:1; transform:none }

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

@media (prefers-reduced-motion: reduce){
  *{ animation:none !important; transition:none !important }
  .rv{ opacity:1; transform:none }
}

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width:1000px){
  .team{ grid-template-columns:repeat(3,1fr) }
  .camp-row{ grid-template-columns:1fr 200px; gap:18px }
  .camp-ref{ grid-column:1/-1 }
  .camp-where{ grid-column:1 }
  .contact-grid,.band-grid,.split,.sec-head{ grid-template-columns:1fr }
  .sec-head{ gap:22px }
  .stamp{ right:14px }
}

@media (max-width:820px){
  .nav{
    position:fixed; inset:0 0 auto 0; top:0; padding:88px 22px 26px;
    background:var(--ink); flex-direction:column; align-items:stretch; gap:0;
    transform:translateY(-102%); transition:transform .35s cubic-bezier(.2,.7,.3,1);
    box-shadow:0 20px 40px rgba(0,0,0,.3);
  }
  .nav.open{ transform:none }
  .nav a{ padding:14px 4px; border-bottom:1px solid var(--hairline-l); font-size:1rem }
  .burger{ display:block; order:3 }
  .hdr .btn{ display:none }
  .work,.notes{ grid-template-columns:1fr }
  .gal{ grid-template-columns:repeat(2,1fr) }
  .ledger{ grid-template-columns:repeat(2,1fr) }
  .ledger div{ border-bottom:1px solid var(--hairline-l) }
  .ledger div:nth-child(2n){ border-right:0 }
  .ledger div:nth-child(odd){ padding-left:0 }
  .row{ grid-template-columns:1fr; gap:6px }
  .ftr-grid{ grid-template-columns:1fr 1fr }
  .ev{ grid-template-columns:74px 1fr; row-gap:12px }
  .ev .pill{ grid-column:2 }
}

@media (max-width:560px){
  body{ font-size:16px }
  .team{ grid-template-columns:repeat(2,1fr) }
  .ftr-grid{ grid-template-columns:1fr }
  .camp-row{ grid-template-columns:1fr }
  .camp-thumb{ height:160px }
}