/* ============================================================
   Dr Rohinisri Sankar — brand site
   Palette: Plum & Apricot — deep plum + apricot + lilac on warm cream
   (variable names --forest/--clay kept for stability; values are plum/apricot)
   ============================================================ */

:root{
  /* palette — Plum & Apricot */
  --ink:#2e1b2a;            /* near-black plum text */
  --forest:#5b2a4e;         /* primary deep plum (semantic name kept) */
  --forest-2:#3f1c37;       /* deeper plum */
  --clay:#f5943b;           /* apricot — bold accent (fills) */
  --clay-deep:#b4560e;      /* burnt apricot — accent text/icons on light */
  --gold:#c9a24b;           /* muted gold — hairline/ring detail */
  --lilac:#e7d4e6;          /* soft lilac — sweet secondary tint */
  --cream:#fdf6ec;          /* page bg */
  --sand:#f4ead9;           /* alt section bg */
  --sand-2:#ecdfc9;
  --card:#ffffff;
  --line:#e8dcc9;           /* hairlines */
  --muted:#5f5348;          /* secondary text */
  --muted-2:#887c6c;

  --maxw:1180px;
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 18px 50px -24px rgba(59,28,55,.32);
  --shadow-sm:0 8px 24px -14px rgba(59,28,55,.26);

  --serif:"Newsreader","Georgia",serif;
  --sans:"Hanken Grotesk",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:var(--sans);color:var(--ink);
  background:var(--cream);line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:500;line-height:1.12;margin:0;letter-spacing:-.01em}
p{margin:0 0 1rem}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 26px}
.serif{font-family:var(--serif)}

/* ---------- eyebrow / small caps ---------- */
.eyebrow{
  font-size:.74rem;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--clay-deep);margin:0 0 1rem;display:inline-flex;align-items:center;gap:.6rem;
}
.eyebrow::before{content:"";width:26px;height:1.5px;background:var(--clay);display:inline-block}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55rem;justify-content:center;
  font-weight:600;font-size:.95rem;padding:.85rem 1.5rem;border-radius:100px;
  border:1.5px solid transparent;cursor:pointer;transition:.25s ease;white-space:nowrap;
}
.btn-primary{background:var(--clay);color:#3a1f10}
.btn-primary:hover{background:#e07c25;transform:translateY(-2px);box-shadow:0 12px 26px -12px rgba(224,124,37,.65)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}
.btn-dark{background:var(--forest);color:#fff}
.btn-dark:hover{background:var(--forest-2);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn-outline{border-color:var(--line);color:var(--forest);background:#fff}
.btn-outline:hover{border-color:var(--clay);color:var(--clay-deep)}

/* ---------- nav ---------- */
header.nav{
  position:sticky;top:0;z-index:50;background:rgba(250,246,239,.82);
  backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:.3s;
}
header.nav.scrolled{border-bottom-color:var(--line);box-shadow:0 4px 20px -18px rgba(0,0,0,.4)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand{display:flex;align-items:center;gap:.7rem;font-family:var(--serif);font-size:1.12rem;color:var(--forest)}
.brand .mono{
  width:38px;height:38px;border-radius:50%;flex:0 0 auto;display:grid;place-items:center;
  background:var(--forest);color:var(--cream);font-family:var(--serif);font-size:1.05rem;
  border:1px solid var(--gold);
}
.brand b{font-weight:500}
.brand small{display:block;font-family:var(--sans);font-size:.62rem;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted-2);font-weight:600;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:2rem}
.nav-links a{font-size:.9rem;font-weight:500;color:var(--muted);transition:.2s;position:relative}
.nav-links a:hover{color:var(--forest)}
.nav-links .btn{padding:.6rem 1.15rem;font-size:.85rem}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--forest);margin:5px 0;transition:.3s}

/* ---------- hero (split: text + real photo) ---------- */
.hero{position:relative;overflow:hidden;background:var(--forest);color:#fff}
.hero::before{content:"";position:absolute;top:-30%;left:-10%;width:55%;height:160%;
  background:radial-gradient(closest-side,rgba(245,148,59,.16),transparent 70%);pointer-events:none}
.hero-inner{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 26px;
  display:grid;grid-template-columns:1.08fr 0.92fr;gap:56px;align-items:center;min-height:calc(100vh - 74px)}
.hero-text{padding:70px 0}
.hero .tag{color:#f7b36b}
.hero h1{font-size:clamp(2.4rem,4.6vw,3.9rem);color:#fff;margin-bottom:1.2rem;font-weight:400}
.hero h1 em{font-style:italic;color:#f7b36b}
.hero .lede{font-size:1.12rem;color:#f0e6ec;max-width:520px;margin-bottom:2rem}
.hero-cta{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-cred{display:flex;gap:1.6rem;flex-wrap:wrap;margin-top:2.6rem;padding-top:1.6rem;
  border-top:1px solid rgba(255,255,255,.16);max-width:560px}
.hero-cred div{font-size:.82rem;color:#d9c9d4}
.hero-cred b{display:block;font-family:var(--serif);font-size:1.5rem;color:#fff;font-weight:500}
.hero-photo{position:relative;align-self:stretch;display:flex;align-items:flex-end;justify-content:center}
.hero-photo img{width:100%;max-width:460px;height:auto;max-height:86vh;object-fit:cover;
  border-radius:20px 20px 0 0;box-shadow:0 -10px 60px -20px rgba(0,0,0,.5)}
.hero-photo::after{content:"";position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:min(100%,460px);height:38%;background:linear-gradient(transparent,rgba(63,28,55,.55));
  border-radius:0 0 20px 20px;pointer-events:none}

/* ---------- section frame ---------- */
section{padding:96px 0}
.section-head{max-width:680px;margin-bottom:56px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .eyebrow{justify-content:center}
.section-head h2{font-size:clamp(1.9rem,3.6vw,2.8rem);color:var(--forest);margin-bottom:1rem;font-weight:400}
.section-head p{color:var(--muted);font-size:1.06rem;margin:0}
.alt{background:var(--sand)}
.dark{background:var(--forest);color:#efe4ec}
.dark h2{color:#fff}.dark .eyebrow{color:#f7b36b}.dark .eyebrow::before{background:#f7b36b}
.dark .section-head p{color:#cbb9c6}

/* ---------- about ---------- */
.about-grid{display:grid;grid-template-columns:0.9fr 1.1fr;gap:64px;align-items:center}
.about-photo{position:relative}
.about-photo img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:3/4;object-fit:cover;width:100%}
.about-photo .frame{position:absolute;inset:18px -18px -18px 18px;border:1.5px solid var(--gold);
  border-radius:var(--radius);z-index:-1}
.about-photo .badge{position:absolute;right:-14px;bottom:26px;background:#fff;border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow);display:flex;align-items:center;gap:12px;max-width:230px}
.about-photo .badge .ic{width:40px;height:40px;border-radius:10px;background:#fbeada;
  display:grid;place-items:center;color:var(--clay-deep);flex:0 0 auto}
.about-photo .badge b{font-family:var(--serif);font-size:1rem;color:var(--forest);display:block;line-height:1.2}
.about-photo .badge span{font-size:.74rem;color:var(--muted-2)}
.about-body p{font-size:1.06rem;color:#3a2f36}
.about-body .lead{font-size:1.2rem;color:var(--forest);font-family:var(--serif);line-height:1.4;margin-bottom:1.4rem}
.about-lang{margin-top:1.6rem;display:flex;flex-wrap:wrap;gap:.5rem}
.chip{font-size:.8rem;font-weight:600;color:var(--forest);background:var(--lilac);
  border:1px solid #ddc7dc;padding:.4rem .9rem;border-radius:100px}

/* ---------- expertise cards ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:.3s;position:relative;overflow:hidden}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
.card .ic{width:52px;height:52px;border-radius:13px;background:#fbeada;color:var(--clay-deep);
  display:grid;place-items:center;margin-bottom:20px}
.card h3{font-size:1.28rem;color:var(--forest);margin-bottom:.6rem;font-weight:500}
.card p{font-size:.96rem;color:var(--muted);margin:0}
.card .tags{margin-top:16px;display:flex;flex-wrap:wrap;gap:.4rem}
.card .tags span{font-size:.72rem;color:var(--clay-deep);background:#fbeada;padding:.25rem .6rem;border-radius:6px;font-weight:600}

/* ---------- timeline / experience ---------- */
.timeline{position:relative;max-width:820px;margin:0 auto}
.timeline::before{content:"";position:absolute;left:22px;top:8px;bottom:8px;width:2px;background:rgba(255,255,255,.18)}
.tl-item{position:relative;padding:0 0 40px 66px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:12px;top:2px;width:22px;height:22px;border-radius:50%;
  background:var(--forest);border:2px solid #f7b36b;display:grid;place-items:center}
.tl-dot::after{content:"";width:7px;height:7px;border-radius:50%;background:#f7b36b}
.tl-item .yr{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#f7b36b;font-weight:600}
.tl-item h3{font-size:1.32rem;color:#fff;margin:.25rem 0 .1rem;font-weight:500}
.tl-item .org{color:#cbb9c6;font-size:.98rem;margin-bottom:.6rem}
.tl-item ul{margin:0;padding-left:1.1rem;color:#c3b1bf;font-size:.94rem}
.tl-item li{margin-bottom:.3rem}

/* ---------- credentials strip ---------- */
.creds{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.cred{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:22px 24px}
.cred .ic{color:var(--clay-deep);flex:0 0 auto;margin-top:2px}
.cred b{font-family:var(--serif);font-size:1.06rem;color:var(--forest);font-weight:500;display:block}
.cred span{font-size:.9rem;color:var(--muted)}

/* ---------- audience tabs ---------- */
.aud{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.aud-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:0;overflow:hidden;
  display:flex;flex-direction:column;transition:.3s}
.aud-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.aud-card .top{background:var(--forest);color:#fff;padding:26px 28px}
.aud-card .top .ic{margin-bottom:12px;color:#f7b36b}
.aud-card .top h3{color:#fff;font-size:1.35rem;font-weight:500}
.aud-card .top p{margin:.4rem 0 0;color:#cbb9c6;font-size:.9rem}
.aud-card .body{padding:24px 28px;flex:1;display:flex;flex-direction:column}
.aud-card ul{list-style:none;margin:0 0 20px;padding:0}
.aud-card li{display:flex;gap:10px;font-size:.95rem;color:#3a3d36;padding:.4rem 0;border-bottom:1px dashed var(--line)}
.aud-card li:last-child{border-bottom:0}
.aud-card li svg{flex:0 0 auto;color:var(--clay);margin-top:4px}
.aud-card .btn{margin-top:auto;align-self:flex-start}

/* ---------- stat band ---------- */
.band{background:var(--sand-2);padding:60px 0}
.band-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.band-grid .s b{font-family:var(--serif);font-size:2.6rem;color:var(--clay-deep);display:block;font-weight:500;line-height:1}
.band-grid .s span{font-size:.86rem;color:var(--muted);font-weight:500}

/* ---------- community ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split img{border-radius:var(--radius);box-shadow:var(--shadow);aspect-ratio:4/5;object-fit:cover;width:100%}
.edu-card{background:var(--forest);border-radius:var(--radius);padding:44px 40px;box-shadow:var(--shadow);
  position:relative;overflow:hidden}
.edu-card::before{content:"";position:absolute;inset:0;border:1px solid rgba(201,162,75,.35);border-radius:var(--radius);pointer-events:none}
.edu-stat{padding:22px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.edu-stat:first-child{padding-top:0}
.edu-stat:last-child{padding-bottom:0;border-bottom:0}
.edu-stat b{display:block;font-family:var(--serif);font-size:3rem;color:#f7b36b;font-weight:500;line-height:1}
.edu-stat span{display:block;margin-top:.4rem;font-size:.98rem;color:#efe4ec}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact-info .row{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.contact-info .row:last-child{border-bottom:0}
.contact-info .ic{width:44px;height:44px;border-radius:11px;background:rgba(255,255,255,.08);
  display:grid;place-items:center;color:#f7b36b;flex:0 0 auto}
.contact-info b{display:block;color:#fff;font-size:1rem;font-family:var(--serif);font-weight:500}
.contact-info a,.contact-info span{color:#cbb9c6;font-size:.95rem}
.contact-info a:hover{color:#f7b36b}
form.card-form{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow)}
form.card-form label{display:block;font-size:.82rem;font-weight:600;color:var(--forest);margin:0 0 6px}
form.card-form input,form.card-form textarea{width:100%;padding:.8rem 1rem;border:1.5px solid var(--line);
  border-radius:10px;font:inherit;font-size:.95rem;margin-bottom:16px;background:var(--cream);color:var(--ink);transition:.2s}
form.card-form input:focus,form.card-form textarea:focus{outline:none;border-color:var(--clay);background:#fff}
form.card-form textarea{min-height:120px;resize:vertical}

/* ---------- footer ---------- */
footer.ft{background:var(--forest-2);color:#c3b1bf;padding:66px 0 30px}
.ft-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.ft .brand{color:#fff}.ft .brand small{color:#9c8a99}
.ft h4{color:#fff;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;font-family:var(--sans);
  font-weight:700;margin-bottom:16px}
.ft ul{list-style:none;margin:0;padding:0}
.ft li{margin-bottom:10px}
.ft a{font-size:.92rem;color:#c3b1bf}.ft a:hover{color:#f7b36b}
.ft-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding-top:24px;font-size:.82rem;color:#9c8a99}
.ft-bottom a{color:#9c8a99}.ft-bottom a:hover{color:#f7b36b}

/* ---------- reveal animation ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:.7s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(max-width:960px){
  .about-grid,.split,.contact-grid{grid-template-columns:1fr;gap:40px}
  .about-photo{max-width:420px;margin:0 auto}
  .cards,.aud{grid-template-columns:1fr 1fr}
  .creds{grid-template-columns:1fr}
  .band-grid{grid-template-columns:1fr 1fr;gap:34px}
  .ft-top{grid-template-columns:1fr 1fr}
  .hero-inner{grid-template-columns:1fr;gap:0;min-height:0;text-align:center}
  .hero-text{padding:72px 0 0}
  .hero .eyebrow,.section-head.center .eyebrow{justify-content:center}
  .hero .lede{margin-left:auto;margin-right:auto}
  .hero-cta,.hero-cred{justify-content:center}
  .hero-cred{margin-left:auto;margin-right:auto}
  .hero-photo{margin-top:40px}
  .hero-photo img{max-width:380px}
}
@media(max-width:680px){
  section{padding:70px 0}
  .nav-links{position:fixed;inset:74px 0 auto 0;background:var(--cream);flex-direction:column;
    align-items:stretch;gap:0;padding:10px 26px 24px;border-bottom:1px solid var(--line);
    transform:translateY(-140%);transition:.35s;box-shadow:var(--shadow-sm)}
  .nav-links.open{transform:none}
  .nav-links a{padding:14px 0;border-bottom:1px solid var(--line)}
  .nav-links .btn{margin-top:12px}
  .nav-toggle{display:block}
  .cards,.aud,.ft-top{grid-template-columns:1fr}
  .hero-text{padding-top:56px}
  .hero-photo img{max-width:320px}
  .band-grid{grid-template-columns:1fr 1fr;gap:28px}
}