/* ---------- Reset & tokens ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}

:root{
  --ink:#0e1a2b;
  --ink-2:#1a2a42;
  --paper:#faf6ef;
  --paper-2:#f2ebdc;
  --rule:#0e1a2b14;
  --accent:#c8471c;
  --accent-2:#e8a33d;
  --muted:#5a6475;

  --f-display:"Fraunces", "Playfair Display", Georgia, serif;
  --f-body:"Inter", system-ui, sans-serif;
  --f-mono:"JetBrains Mono", ui-monospace, monospace;

  --maxw:1240px;
  --pad:clamp(20px, 4vw, 56px);
}

body{
  font-family:var(--f-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.55;
  font-size:16px;
  overflow-x:hidden;
}

img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

.container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad)}

/* ---------- Typography ---------- */
h1,h2,h3,h4{font-family:var(--f-display);font-weight:400;letter-spacing:-0.02em;line-height:1.05}
h1{font-size:clamp(2.8rem, 7vw, 6.2rem);font-variation-settings:"opsz" 144, "SOFT" 30}
h2{font-size:clamp(2rem, 4.5vw, 3.6rem);font-variation-settings:"opsz" 144}
h3{font-size:clamp(1.4rem, 2.2vw, 1.9rem);font-variation-settings:"opsz" 72}
h4{font-size:1.15rem;font-variation-settings:"opsz" 36}

.eyebrow{
  font-family:var(--f-mono);
  font-size:.72rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--accent);
  font-weight:500;
}

em, .italic{font-style:italic;font-family:var(--f-display);font-weight:400}

/* ---------- Navbar ---------- */
.nav{
  position:sticky;top:0;z-index:50;
  background:rgba(250,246,239,0.85);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--rule);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:24px;
}
.logo{display:flex;align-items:center;gap:14px;font-family:var(--f-display);font-weight:500;font-size:1.1rem;letter-spacing:-0.01em}
.logo img{height:44px;width:auto}
.logo-text{line-height:1.1;border-left:1px solid var(--rule);padding-left:14px}
.logo-text small{display:block;font-family:var(--f-mono);font-size:.62rem;letter-spacing:.15em;color:var(--muted);text-transform:uppercase;font-weight:400;margin-top:2px}

.nav-links{display:flex;align-items:center;gap:32px}
.nav-links a:not(.btn){font-size:.92rem;font-weight:500;position:relative;padding:6px 0;transition:color .25s}
.nav-links a:not(.btn):hover, .nav-links a:not(.btn).active{color:var(--accent)}
.nav-links a:not(.btn)::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width .3s ease;
}
.nav-links a:not(.btn):hover::after, .nav-links a:not(.btn).active::after{width:100%}

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;
  font-weight:500;font-size:.92rem;
  transition:all .25s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--ink);color:var(--paper)}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-accent{background:var(--accent);color:var(--paper)}
.btn-accent:hover{background:var(--ink);transform:translateY(-1px)}
.btn .arrow{transition:transform .25s ease}
.btn:hover .arrow{transform:translateX(4px)}

.burger{display:none;flex-direction:column;gap:5px;padding:8px;cursor:pointer}
.burger span{display:block;width:22px;height:1.5px;background:var(--ink);transition:all .3s}
.mobile-menu{display:none;position:absolute;top:76px;left:0;right:0;background:var(--paper);padding:20px;border-bottom:1px solid var(--rule);flex-direction:column;gap:16px}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:1rem;font-weight:500;padding:10px 0;border-bottom:1px solid var(--rule)}
.mobile-menu a:last-child{border-bottom:none}

/* ---------- Section base ---------- */
section.block{padding:clamp(70px,9vw,120px) 0;position:relative}
.section-head{margin-bottom:clamp(40px,5vw,72px);max-width:760px}
.section-head .eyebrow{margin-bottom:16px;display:block}
.section-head p{margin-top:20px;color:var(--ink-2);font-size:1.05rem;line-height:1.7}

/* ---------- Footer ---------- */
footer{
  background:var(--ink);color:var(--paper);
  padding:clamp(60px,7vw,100px) 0 40px;
  position:relative;overflow:hidden;
}
footer::before{
  content:"STANFORD INDIA";
  position:absolute;bottom:-40px;left:-20px;right:0;
  font-family:var(--f-display);font-size:clamp(5rem,14vw,12rem);
  font-weight:300;line-height:.85;letter-spacing:-0.04em;
  color:rgba(250,246,239,0.04);
  pointer-events:none;white-space:nowrap;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.3fr) repeat(3,minmax(0,1fr));
  gap:clamp(30px,4vw,60px);
  margin-bottom:60px;position:relative;
}
.footer-brand .logo img{height:52px;background:var(--paper);padding:4px;border-radius:4px}
.footer-brand .logo-text{color:var(--paper);border-left-color:rgba(250,246,239,0.2)}
.footer-brand p{
  margin-top:20px;color:rgba(250,246,239,0.65);
  font-size:.95rem;line-height:1.65;max-width:38ch;
}
.footer-col h4{
  font-family:var(--f-mono);font-size:.75rem;
  letter-spacing:.2em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:20px;font-weight:500;
}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{
  color:rgba(250,246,239,0.75);font-size:.95rem;
  transition:color .2s;
}
.footer-col a:hover{color:var(--paper)}

.footer-bot{
  border-top:1px solid rgba(250,246,239,0.15);
  padding-top:28px;
  display:flex;justify-content:space-between;align-items:center;
  gap:20px;flex-wrap:wrap;
  font-family:var(--f-mono);font-size:.78rem;
  color:rgba(250,246,239,0.55);letter-spacing:.05em;
  position:relative;
}

/* ---------- Entrance animations ---------- */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease, transform .8s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive nav ---------- */
@media (max-width: 960px){
  .nav-links{display:none}
  .burger{display:flex}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .footer-brand{grid-column:1/-1}
}