/* ==========================================================================
   Dr Huma Goyal — personal site
   Design language replicated from attacomsian.com:
   Geist (sans) + DM Serif Display (italic accents), zinc palette,
   amber hero wash, single centered column, generous whitespace.
   ========================================================================== */

/* ---- Fonts (self-hosted, OFL) ------------------------------------------- */
@font-face{font-family:"Geist";src:url("../fonts/geist-400.woff2") format("woff2");font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("../fonts/geist-500.woff2") format("woff2");font-weight:500;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("../fonts/geist-600.woff2") format("woff2");font-weight:600;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("../fonts/geist-700.woff2") format("woff2");font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:"Geist";src:url("../fonts/geist-800.woff2") format("woff2");font-weight:800;font-style:normal;font-display:swap}
@font-face{font-family:"DM Serif Display";src:url("../fonts/dmserif-400-italic.woff2") format("woff2");font-weight:400;font-style:italic;font-display:swap}

/* ---- Theme tokens ------------------------------------------------------- */
:root{
  --fg:#09090b;            /* zinc-950 */
  --fg-soft:#27272a;       /* zinc-800 */
  --muted:#52525b;         /* zinc-600 */
  --faint:#a1a1aa;         /* zinc-400 */
  --border:#e4e4e7;        /* zinc-200 */
  --border-strong:#d4d4d8; /* zinc-300 */
  --card:#ffffff;
  --card-hover:#fafafa;
  --btn-fg:#fafafa;
  --btn-bg:#09090b;
  --page:#ffffff;
  --wash:radial-gradient(circle at 50% -128px, rgba(250,204,21,.16), rgba(0,0,0,0) 480px),
         linear-gradient(#fffdf4 0, #ffffff 352px);
  --wordmark-light:inline; --wordmark-dark:none;
  --sun:inline; --moon:none;
}
:root[data-theme="dark"]{
  --fg:#fafafa;
  --fg-soft:#e4e4e7;
  --muted:#a1a1aa;         /* zinc-400 */
  --faint:#71717a;         /* zinc-500 */
  --border:#27272a;        /* zinc-800 */
  --border-strong:#3f3f46; /* zinc-700 */
  --card:#101012;
  --card-hover:#161619;
  --btn-fg:#09090b;
  --btn-bg:#fafafa;
  --page:#09090b;
  --wash:radial-gradient(circle at 50% -140px, rgba(250,204,21,.10), rgba(0,0,0,0) 460px),
         linear-gradient(#0b0b0d 0, #09090b 352px);
  --wordmark-light:none; --wordmark-dark:inline;
  --sun:none; --moon:inline;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --fg:#fafafa; --fg-soft:#e4e4e7; --muted:#a1a1aa; --faint:#71717a;
    --border:#27272a; --border-strong:#3f3f46; --card:#101012; --card-hover:#161619;
    --btn-fg:#09090b; --btn-bg:#fafafa; --page:#09090b;
    --wash:radial-gradient(circle at 50% -140px, rgba(250,204,21,.10), rgba(0,0,0,0) 460px),
           linear-gradient(#0b0b0d 0, #09090b 352px);
    --wordmark-light:none; --wordmark-dark:inline; --sun:none; --moon:inline;
  }
}

/* ---- Base --------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  margin:0;
  font-family:"Geist",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--fg);
  background:var(--page);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{ /* fixed hero wash so the amber glow stays anchored at top */
  content:"";position:fixed;inset:0;z-index:-1;background:var(--wash);
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
:focus-visible{outline:2px solid var(--fg);outline-offset:3px;border-radius:6px}

.wrap{max-width:680px;margin:0 auto;padding:0 24px}

.accent{font-family:"DM Serif Display",Georgia,"Times New Roman",serif;font-style:italic;font-weight:400}

/* ---- Header ------------------------------------------------------------- */
.site-header{padding:28px 0 0}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:1.06rem;letter-spacing:-.02em;color:var(--fg)}
.brand .mark{width:26px;height:26px;border-radius:7px;display:block}
.theme-toggle{
  display:inline-grid;place-items:center;width:38px;height:38px;
  border:1px solid var(--border);border-radius:999px;background:var(--card);
  color:var(--muted);cursor:pointer;transition:border-color .2s,color .2s,background .2s;
}
.theme-toggle:hover{color:var(--fg);border-color:var(--border-strong)}
.theme-toggle svg{width:18px;height:18px}
.theme-toggle .i-sun{display:var(--sun)}
.theme-toggle .i-moon{display:var(--moon)}

/* ---- Hero --------------------------------------------------------------- */
.hero{padding:56px 0 8px}
.hero .avatar{
  width:116px;height:116px;border-radius:50%;object-fit:cover;object-position:50% 35%;
  border:1px solid var(--border);background:var(--card);margin-bottom:28px;
  box-shadow:0 6px 22px rgba(9,9,11,.10);
}
.eyeline{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9rem;font-weight:500;color:var(--muted);margin:0 0 18px;
}
.hero h1{
  margin:0;font-weight:700;letter-spacing:-.035em;line-height:1.06;
  font-size:clamp(2rem,4.4vw + 1rem,2.85rem);
}
.hero .lead{
  margin:22px 0 0;color:var(--muted);
  font-size:clamp(1.05rem,1vw + .85rem,1.32rem);line-height:1.5;max-width:38ch;
}

/* ---- Buttons ------------------------------------------------------------ */
.cta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px}
.btn{
  display:inline-flex;align-items:center;gap:7px;
  padding:8px 15px;border-radius:999px;font-weight:600;font-size:.88rem;
  border:1px solid transparent;transition:transform .15s ease,background .2s,border-color .2s,opacity .2s;
}
.btn-primary{background:var(--btn-bg);color:var(--btn-fg)}
.btn-primary:hover{opacity:.88;transform:translateY(-1px)}
.btn-ghost{background:var(--card);color:var(--fg);border-color:var(--border-strong)}
.btn-ghost:hover{background:var(--card-hover);transform:translateY(-1px)}

/* ---- Social ------------------------------------------------------------- */
.social{display:flex;gap:18px;align-items:center;margin-top:34px}
.social a{color:var(--faint);transition:color .2s,transform .15s}
.social a:hover{color:var(--fg);transform:translateY(-2px)}
.social svg{width:22px;height:22px;display:block}

/* ---- Sections ----------------------------------------------------------- */
section{padding:48px 0}
.sec-head{margin:0 0 6px;font-size:1.125rem;font-weight:700;letter-spacing:-.01em}
.sec-intro{margin:0 0 22px;color:var(--muted);font-size:1rem;line-height:1.5;max-width:46ch}

/* ---- List rows (Experience / Book / Highlights / Publications) ---------- */
.list{border-top:1px solid var(--border)}
.row{
  display:flex;align-items:flex-start;gap:18px;
  padding:20px 4px;border-bottom:1px solid var(--border);
  transition:background .2s;position:relative;
}
a.row:hover{background:var(--card-hover)}
.row .ic{
  flex:0 0 auto;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--border);display:grid;place-items:center;color:var(--muted);
  background:var(--card);overflow:hidden;
}
.row .ic svg{width:20px;height:20px}
.row .ic img{width:100%;height:100%;object-fit:cover}
.row .ic.logo{background:#fff;border-color:var(--border)}
.row .ic.logo img{object-fit:contain;padding:6px}
.row .body{flex:1 1 auto;min-width:0}
.row .t{display:block;margin:0;font-size:1.16rem;font-weight:600;letter-spacing:-.01em;line-height:1.3}
.row .d{display:block;margin:5px 0 0;color:var(--muted);font-size:.98rem;line-height:1.5}
.row .meta{display:block;color:var(--faint);font-size:.85rem;font-weight:500;margin-top:6px}
.row .go{
  flex:0 0 auto;align-self:center;width:38px;height:38px;border-radius:50%;
  border:1px solid var(--border);display:grid;place-items:center;color:var(--faint);
  transition:color .2s,border-color .2s,transform .15s;
}
a.row:hover .go{color:var(--fg);border-color:var(--border-strong);transform:translate(2px,-2px)}
.row .go svg{width:16px;height:16px}

.viewall{margin-top:22px}
.viewall a{
  display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:.95rem;color:var(--fg);
  border-bottom:1px solid var(--border-strong);padding-bottom:2px;transition:gap .15s,border-color .2s;
}
.viewall a:hover{gap:11px;border-color:var(--fg)}

/* ---- Book (feature row with cover) -------------------------------------- */
.book{display:flex;gap:22px;align-items:center;border:1px solid var(--border);border-radius:18px;padding:20px;background:var(--card);transition:border-color .2s,background .2s}
.book:hover{border-color:var(--border-strong);background:var(--card-hover)}
.book img{width:120px;height:auto;border-radius:8px;flex:0 0 auto;box-shadow:0 8px 24px rgba(9,9,11,.12)}
.book .t{margin:0;font-size:1.22rem;font-weight:700;letter-spacing:-.01em}
.book .d{margin:6px 0 12px;color:var(--muted);font-size:.98rem;line-height:1.5}
.book .btn{padding:9px 18px;font-size:.9rem}

/* ---- Blog cards --------------------------------------------------------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:18px;margin-top:8px}
.card{border:1px solid var(--border);border-radius:16px;overflow:hidden;background:var(--card);transition:border-color .2s,transform .2s}
.card:hover{border-color:var(--border-strong);transform:translateY(-3px)}
.card .thumb{position:relative;aspect-ratio:3/2;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;filter:saturate(.7) brightness(.84);transition:transform .5s ease,filter .5s ease}
.card .thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(9,9,11,.18),rgba(9,9,11,.58));transition:opacity .5s ease}
.card:hover .thumb img{transform:scale(1.05);filter:none}
.card:hover .thumb::after{opacity:.2}
.card .cap{padding:14px 16px 16px}
.card .cap .t{margin:0;font-size:1.02rem;font-weight:600;line-height:1.35;letter-spacing:-.01em}
.card .cap .meta{margin:8px 0 0;color:var(--faint);font-size:.82rem;font-weight:500}

/* ---- Footer ------------------------------------------------------------- */
.site-footer{border-top:1px solid var(--border);margin-top:32px;padding:40px 0 56px}
.site-footer .cols{display:flex;flex-wrap:wrap;gap:26px 40px;justify-content:space-between;align-items:flex-start}
.site-footer .fbrand img{height:26px}
.site-footer nav{display:flex;flex-wrap:wrap;gap:8px 22px}
.site-footer nav a{color:var(--muted);font-size:.95rem;font-weight:500;transition:color .2s}
.site-footer nav a:hover{color:var(--fg)}
.site-footer .fsocial{display:flex;gap:16px}
.site-footer .fsocial a{color:var(--faint);transition:color .2s}
.site-footer .fsocial a:hover{color:var(--fg)}
.site-footer .fsocial svg{width:20px;height:20px}
.site-footer .legal{
  margin-top:28px;display:flex;flex-wrap:wrap;gap:6px 18px;justify-content:space-between;
  color:var(--faint);font-size:.85rem;border-top:1px solid var(--border);padding-top:20px;
}
.site-footer .legal a{color:var(--faint);transition:color .2s}
.site-footer .legal a:hover{color:var(--fg)}

/* ---- Scroll reveal (only hides when JS is present) ---------------------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.js .reveal{opacity:1;transform:none;transition:none}}

/* ---- Cookie consent banner ---------------------------------------------- */
.cookie-banner{
  position:fixed;left:20px;bottom:20px;z-index:60;max-width:330px;
  background:var(--card);border:1px solid var(--border-strong);border-radius:16px;
  padding:15px 16px 13px;box-shadow:0 14px 44px rgba(9,9,11,.24);
  transform:translateY(150%);opacity:0;
  transition:transform .45s cubic-bezier(.2,.7,.2,1),opacity .4s ease;
}
.cookie-banner.show{transform:none;opacity:1}
.cookie-banner[hidden]{display:none}
.cc-text{margin:0 0 12px;font-size:.85rem;line-height:1.45;color:var(--muted)}
.cc-text a{color:var(--fg);text-decoration:underline;text-underline-offset:2px}
.cc-actions{display:flex;gap:8px;justify-content:flex-end}
.cc-btn{
  padding:6px 15px;border-radius:999px;font-weight:600;font-size:.82rem;cursor:pointer;
  border:1px solid var(--border-strong);background:var(--card);color:var(--fg);
  transition:background .2s,border-color .2s,opacity .2s,transform .15s;
}
.cc-decline:hover{background:var(--card-hover)}
.cc-accept{background:var(--btn-bg);color:var(--btn-fg);border-color:transparent}
.cc-accept:hover{opacity:.88;transform:translateY(-1px)}
@media (prefers-reduced-motion:reduce){.cookie-banner{transition:opacity .3s ease}}
@media (max-width:440px){.cookie-banner{left:12px;right:12px;bottom:12px;max-width:none}}

/* ---- Small screens ------------------------------------------------------ */
@media (max-width:520px){
  .hero{padding:40px 0 4px}
  .book{flex-direction:column;align-items:flex-start}
  .book img{width:104px}
  section{padding:40px 0}
}