/* ============================================================
   SAI VENKATA NARAYANA SOCIETY — DESIGN SYSTEM
   Palette:  ink #123734 · ink-light #2E6459 · gold #E2A63B
             paper #FAF7EE · line #DCD3BB · rose-clay #B5502E
   Type:     Display  — "Archivo Expanded" (tracked, bold)
             Body     — "Source Serif 4" (report/institutional feel)
             Data/UI  — "IBM Plex Mono" (stats, labels, nav)
   Signature: the enrolment→registration→certification→training
              "pipeline" ticker — a real sequence, not decoration.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Archivo+Expanded:wght@500;600;700;800&family=Source+Serif+4:opsz,wght@8..60,400;8..60,500;8..60,600;8..60,700&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  --ink:        #123734;
  --ink-light:  #2E6459;
  --ink-soft:   #4C7C71;
  --gold:       #E2A63B;
  --gold-deep:  #B97F1F;
  --clay:       #B5502E;
  --paper:      #FAF7EE;
  --paper-dim:  #F1ECDD;
  --line:       #DCD3BB;
  --cream-text: #F6F1E2;
  --ink-90:     rgba(18,55,52,.9);

  --font-display: 'Archivo Expanded', sans-serif;
  --font-body:    'Source Serif 4', Georgia, serif;
  --font-mono:    'IBM Plex Mono', monospace;

  --max: 1180px;
  --radius: 3px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.12;
  margin:0 0 .5em;
  color:var(--ink);
  letter-spacing:.01em;
}
p{ margin:0 0 1.1em; }
ul{ margin:0 0 1.1em; padding-left:1.2em; }
.container{ max-width:var(--max); margin:0 auto; padding:0 28px; }

::selection{ background:var(--gold); color:var(--ink); }
:focus-visible{ outline:3px solid var(--gold-deep); outline-offset:2px; }

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; scroll-behavior:auto !important; }
}

/* -------------------- eyebrow / labels -------------------- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--gold-deep);
  display:flex;
  align-items:center;
  gap:.6em;
  margin-bottom:.9em;
}
.eyebrow::before{
  content:"";
  width:26px; height:1px;
  background:var(--gold-deep);
  display:inline-block;
}

/* -------------------- header / nav -------------------- */
.site-header{
  position:sticky; top:0; z-index:100;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.nav-bar{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px 28px;
  max-width:var(--max); margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:12px;
  font-family:var(--font-display);
}
.brand-mark{
  width:40px; height:40px;
  border-radius:50%;
  background:var(--ink);
  color:var(--gold);
  display:flex; align-items:center; justify-content:center;
  font-size:.95rem; font-weight:800;
  flex:none;
}
.brand-name{
  font-weight:700; font-size:.98rem; letter-spacing:.02em;
  color:var(--ink);
  line-height:1.15;
}
.brand-name small{
  display:block;
  font-family:var(--font-mono);
  font-weight:400; letter-spacing:.08em;
  font-size:.62rem; color:var(--ink-soft);
  text-transform:uppercase; margin-top:2px;
}
.nav-links{
  display:flex; gap:2px; align-items:center;
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.03em;
  text-transform:uppercase;
}
.nav-links a{
  padding:10px 14px;
  color:var(--ink-light);
  border-radius:var(--radius);
  transition:color .15s ease, background .15s ease;
}
.nav-links a:hover{ background:var(--paper-dim); color:var(--ink); }
.nav-links a.active{ color:var(--ink); font-weight:600; }
.nav-links a.active::after{
  content:"";
}
.nav-cta{
  background:var(--ink); color:var(--cream-text) !important;
  padding:10px 18px !important;
  margin-left:6px;
}
.nav-cta:hover{ background:var(--ink-light) !important; }

.nav-toggle{
  display:none;
  background:none; border:none; cursor:pointer;
  padding:8px; color:var(--ink);
}
.nav-toggle svg{ width:26px; height:26px; }

@media (max-width: 900px){
  .nav-links{
    position:fixed; inset:65px 0 0 0;
    background:var(--paper);
    flex-direction:column; align-items:stretch;
    padding:10px 20px 30px;
    font-size:1rem;
    gap:4px;
    transform:translateY(-8px);
    opacity:0;
    pointer-events:none;
    transition:opacity .18s ease, transform .18s ease;
    border-top:1px solid var(--line);
  }
  .nav-links.open{ opacity:1; pointer-events:auto; transform:translateY(0); }
  .nav-links a{ padding:14px 6px; border-bottom:1px solid var(--line); border-radius:0; }
  .nav-toggle{ display:block; }
  .nav-cta{ margin-left:0; margin-top:8px; text-align:center; }
}

/* -------------------- buttons -------------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono);
  font-size:.8rem; letter-spacing:.05em; text-transform:uppercase;
  padding:13px 24px;
  border-radius:var(--radius);
  border:1px solid var(--ink);
  cursor:pointer;
  transition:transform .15s ease, background .15s ease, color .15s ease;
}
.btn-primary{ background:var(--ink); color:var(--cream-text); }
.btn-primary:hover{ background:var(--gold-deep); border-color:var(--gold-deep); color:var(--ink); }
.btn-ghost{ background:transparent; color:var(--ink); }
.btn-ghost:hover{ background:var(--ink); color:var(--cream-text); }
.btn-on-dark{ border-color:var(--gold); color:var(--cream-text); }
.btn-on-dark:hover{ background:var(--gold); color:var(--ink); }

/* -------------------- hero -------------------- */
.hero{
  background:var(--ink);
  color:var(--cream-text);
  position:relative;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute; inset:0;
  background:
    radial-gradient(600px 300px at 85% 0%, rgba(226,166,59,.18), transparent 60%),
    repeating-linear-gradient(90deg, rgba(246,241,226,.045) 0 1px, transparent 1px 64px);
  pointer-events:none;
}
.hero-inner{
  position:relative;
  padding:88px 28px 70px;
  max-width:var(--max); margin:0 auto;
  display:grid; grid-template-columns:1.15fr .85fr; gap:56px;
  align-items:end;
}
.hero .eyebrow{ color:var(--gold); }
.hero .eyebrow::before{ background:var(--gold); }
.hero h1{
  color:var(--cream-text);
  font-size:clamp(2.1rem, 4.4vw, 3.4rem);
  max-width:16ch;
}
.hero h1 em{
  font-style:normal; color:var(--gold);
}
.hero-lede{
  font-family:var(--font-body);
  font-size:1.12rem;
  color:#D8D2BE;
  max-width:46ch;
  margin-bottom:1.6em;
}
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-side{
  border-left:1px solid rgba(246,241,226,.25);
  padding-left:32px;
}
.hero-side p{ color:#D8D2BE; font-size:.98rem; }
.hero-side-label{
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--gold); margin-bottom:.6em;
}

@media (max-width: 860px){
  .hero-inner{ grid-template-columns:1fr; }
  .hero-side{ border-left:none; border-top:1px solid rgba(246,241,226,.25); padding-left:0; padding-top:24px; }
}

/* -------------------- impact ticker (signature element) -------------------- */
.ticker{
  background:var(--ink-light);
  color:var(--cream-text);
  position:relative;
}
.ticker-inner{
  max-width:var(--max); margin:0 auto;
  padding:0 28px;
  display:grid;
  grid-template-columns:repeat(4, 1fr);
  position:relative;
}
.ticker-inner::before{
  content:"";
  position:absolute; left:28px; right:28px; top:38px;
  height:1px;
  background:repeating-linear-gradient(90deg, rgba(246,241,226,.55) 0 6px, transparent 6px 12px);
  z-index:0;
}
.tick{
  padding:34px 18px 30px;
  text-align:left;
  position:relative;
  border-left:1px solid rgba(246,241,226,.18);
}
.tick:first-child{ border-left:none; padding-left:0; }
.tick-step{
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.14em;
  text-transform:uppercase; color:var(--gold);
  display:flex; align-items:center; gap:8px;
  margin-bottom:14px;
}
.tick-dot{
  width:9px; height:9px; border-radius:50%;
  background:var(--gold); flex:none;
  box-shadow:0 0 0 4px var(--ink-light), 0 0 0 5px rgba(246,241,226,.18);
  position:relative; z-index:1;
}
.tick-num{
  font-family:var(--font-mono); font-weight:600;
  font-size:clamp(1.8rem, 3.2vw, 2.6rem);
  color:var(--cream-text);
  line-height:1;
}
.tick-label{
  margin-top:8px;
  font-size:.88rem; color:#CFE0DB;
}
@media (max-width: 760px){
  .ticker-inner{ grid-template-columns:1fr 1fr; }
  .ticker-inner::before{ display:none; }
  .tick{ border-left:none; border-top:1px solid rgba(246,241,226,.18); padding-left:0; }
  .tick:nth-child(odd){ padding-right:14px; }
  .tick:first-child, .tick:nth-child(2){ border-top:none; }
}

/* -------------------- section scaffolding -------------------- */
section{ padding:76px 0; }
.section-tight{ padding:52px 0; }
.section-head{ max-width:62ch; margin-bottom:44px; }
.section-head h2{ font-size:clamp(1.6rem, 3vw, 2.2rem); }
.section-head p{ color:var(--ink-light); font-size:1.05rem; }
.on-dim{ background:var(--paper-dim); }
.on-ink{ background:var(--ink); color:var(--cream-text); }
.on-ink h2,.on-ink h3,.on-ink h4{ color:var(--cream-text); }
.on-ink p{ color:#D8D2BE; }
.rule{ border:none; border-top:1px solid var(--line); margin:0; }

/* -------------------- cards / grid -------------------- */
.grid{ display:grid; gap:28px; }
.grid-2{ grid-template-columns:repeat(2,1fr); }
.grid-3{ grid-template-columns:repeat(3,1fr); }
.grid-4{ grid-template-columns:repeat(4,1fr); }
@media (max-width: 900px){ .grid-3{ grid-template-columns:repeat(2,1fr); } .grid-4{ grid-template-columns:repeat(2,1fr); } }
@media (max-width: 620px){ .grid-2,.grid-3,.grid-4{ grid-template-columns:1fr; } }

.card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px;
}
.card h3{ font-size:1.15rem; }
.card p{ color:var(--ink-light); font-size:.98rem; margin-bottom:0; }
.card-num{
  font-family:var(--font-mono); color:var(--gold-deep);
  font-size:.78rem; letter-spacing:.08em; margin-bottom:14px; display:block;
}

.tag{
  display:inline-block;
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.08em;
  text-transform:uppercase;
  padding:5px 10px;
  border:1px solid var(--line);
  border-radius:20px;
  color:var(--ink-light);
  margin:0 8px 8px 0;
}

/* -------------------- state chips (coverage) -------------------- */
.chip-row{ display:flex; flex-wrap:wrap; gap:10px; }
.chip{
  font-family:var(--font-mono); font-size:.78rem;
  padding:9px 16px;
  border:1px solid var(--ink);
  border-radius:20px;
  color:var(--ink);
}

/* -------------------- two-col text/media -------------------- */
.split{
  display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start;
}
@media (max-width: 860px){ .split{ grid-template-columns:1fr; gap:32px; } }

/* -------------------- footer -------------------- */
.site-footer{
  background:var(--ink); color:#CFE0DB;
  padding:64px 0 28px;
}
.footer-grid{
  display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(246,241,226,.15);
}
.footer-grid h4{
  color:var(--cream-text);
  font-family:var(--font-mono);
  font-size:.72rem; letter-spacing:.12em; text-transform:uppercase;
  margin-bottom:18px;
}
.footer-grid ul{ list-style:none; padding:0; margin:0; }
.footer-grid li{ margin-bottom:10px; font-size:.92rem; }
.footer-grid a:hover{ color:var(--gold); }
.footer-brand p{ color:#B9CCC5; font-size:.92rem; max-width:36ch; }
.footer-bottom{
  padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em;
  color:#8FA9A1;
}
@media (max-width: 860px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width: 560px){ .footer-grid{ grid-template-columns:1fr; } }

/* -------------------- page header (interior pages) -------------------- */
.page-header{
  background:var(--ink); color:var(--cream-text);
  padding:64px 0 48px;
  position:relative; overflow:hidden;
}
.page-header::after{
  content:"";
  position:absolute; inset:0;
  background:radial-gradient(500px 260px at 90% 0%, rgba(226,166,59,.16), transparent 60%);
  pointer-events:none;
}
.page-header h1{ color:var(--cream-text); font-size:clamp(1.9rem,4vw,2.7rem); position:relative; }
.breadcrumb{
  font-family:var(--font-mono); font-size:.74rem; letter-spacing:.06em;
  color:#B9CCC5; margin-bottom:16px; position:relative;
}
.breadcrumb a:hover{ color:var(--gold); }
.page-lede{ color:#D8D2BE; max-width:60ch; font-size:1.05rem; position:relative; }

/* -------------------- lists with markers -------------------- */
.mission-list{ list-style:none; padding:0; margin:0; display:grid; gap:18px; }
.mission-list li{
  display:grid; grid-template-columns:auto 1fr; gap:18px;
  padding-bottom:18px; border-bottom:1px solid var(--line);
}
.mission-list li:last-child{ border-bottom:none; }
.mission-list .m-index{
  font-family:var(--font-mono); color:var(--gold-deep); font-weight:600;
}

/* -------------------- affiliation card -------------------- */
.affil{
  display:grid; grid-template-columns:180px 1fr; gap:26px;
  padding:30px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.affil:last-child{ border-bottom:none; }
.affil-badge{
  font-family:var(--font-display); font-weight:800;
  color:var(--ink);
  background:var(--paper-dim);
  border:1px solid var(--line);
  border-radius:var(--radius);
  display:flex; align-items:center; justify-content:center;
  text-align:center;
  padding:22px 10px;
  font-size:.98rem; letter-spacing:.02em;
  min-height:96px;
}
.affil h3{ font-size:1.1rem; margin-bottom:.4em; }
.affil-group{
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.12em;
  text-transform:uppercase; color:var(--gold-deep); margin-bottom:6px; display:block;
}
.affil p{ color:var(--ink-light); font-size:.96rem; margin-bottom:0; }
@media (max-width: 640px){ .affil{ grid-template-columns:1fr; } .affil-badge{ min-height:60px; } }

/* -------------------- gallery -------------------- */
.tabs{ display:flex; gap:6px; margin-bottom:34px; flex-wrap:wrap; }
.tab-btn{
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.05em; text-transform:uppercase;
  padding:11px 20px; border:1px solid var(--ink); border-radius:20px;
  background:transparent; color:var(--ink); cursor:pointer;
  transition:background .15s ease, color .15s ease;
}
.tab-btn.active, .tab-btn:hover{ background:var(--ink); color:var(--cream-text); }
.gallery-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:18px; }
@media (max-width: 900px){ .gallery-grid{ grid-template-columns:repeat(3,1fr); } }
@media (max-width: 620px){ .gallery-grid{ grid-template-columns:repeat(2,1fr); } }
.tab-panel{ display:none; }
.tab-panel.active{ display:block; }
.gallery-tile{
  aspect-ratio:4/3;
  border-radius:var(--radius);
  display:flex; align-items:flex-end;
  padding:14px;
  position:relative; overflow:hidden;
  border:1px solid var(--line);
  color:var(--cream-text);
}
.gallery-tile span{
  position:relative; z-index:1;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em;
  background:rgba(18,55,52,.55);
  padding:5px 10px; border-radius:14px;
}
.gallery-video::before{ content:"▶"; position:absolute; inset:0; display:flex; align-items:center; justify-content:center; font-size:1.6rem; color:rgba(246,241,226,.85); }
.news-tile{
  aspect-ratio:auto; align-items:flex-start;
  background:var(--paper) !important;
  color:var(--ink) !important;
  padding:20px; border:1px solid var(--line);
}
.news-tile span{ background:none; padding:0; color:var(--gold-deep); }
.news-tile h4{ font-size:1rem; margin:10px 0 6px; }
.news-tile p{ font-size:.88rem; color:var(--ink-light); margin:0; }

/* -------------------- contact -------------------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:56px; }
@media (max-width: 860px){ .contact-grid{ grid-template-columns:1fr; } }
.field{ margin-bottom:20px; }
.field label{
  display:block; font-family:var(--font-mono); font-size:.72rem;
  letter-spacing:.08em; text-transform:uppercase; color:var(--ink-light);
  margin-bottom:8px;
}
.field input, .field textarea{
  width:100%; padding:13px 14px;
  border:1px solid var(--line); border-radius:var(--radius);
  background:var(--paper);
  font-family:var(--font-body); font-size:1rem; color:var(--ink);
}
.field input:focus, .field textarea:focus{ border-color:var(--ink); }
.field textarea{ resize:vertical; min-height:130px; }
.info-row{ display:flex; gap:16px; padding:18px 0; border-bottom:1px solid var(--line); }
.info-row:first-child{ padding-top:0; }
.info-icon{ flex:none; color:var(--gold-deep); }
.info-row h4{ font-size:.95rem; margin-bottom:.2em; }
.info-row p{ margin:0; color:var(--ink-light); font-size:.92rem; }
.map-frame{
  border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; margin-top:28px; filter:grayscale(.15);
}

/* -------------------- misc -------------------- */
.note{
  font-family:var(--font-mono); font-size:.78rem; color:var(--ink-soft);
  background:var(--paper-dim); border:1px dashed var(--line);
  padding:14px 16px; border-radius:var(--radius);
}
.center{ text-align:center; }
.mt-0{ margin-top:0; }
.stack{ display:flex; flex-direction:column; gap:14px; }