/* ============================================================
   Design tokens — single source of truth (Warm / Editorial)
   ============================================================ */
:root{
  /* Type */
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --font-display:'Space Grotesk',-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;

  /* Brand accent (text/links/decorative) */
  --accent:#2563eb;
  --accent-2:#4f46e5;
  --accent-soft:#eef2fb;

  /* Ink + neutrals (cool) */
  --ink:#0f172a;
  --ink-soft:#334155;
  --muted:#64748b;
  --line:#e6ebf3;

  /* Surfaces (cool) */
  --bg:#f6f8fc;
  --bg-soft:#eef2f8;
  --card:#ffffff;

  /* Dark bands (strip + footer) */
  --band:#0e1730;
  --band-ink:#e8edf7;
  --band-sub:#94a3b8;

  /* Chrome */
  --nav-bg:rgba(255,255,255,.82);

  /* Shape + depth (crisp, cool) */
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 1px 2px rgba(15,23,42,.05), 0 14px 34px rgba(37,99,235,.08);
  --shadow-lg:0 24px 60px rgba(15,23,42,.14);
  --maxw:1080px;
}

@media (prefers-color-scheme: dark){
  :root{
    --accent:#8aa0f5;
    --accent-2:#a5b4fc;
    --accent-soft:#1b2440;

    --ink:#e8edf7;
    --ink-soft:#c3ccdb;
    --muted:#8b98ae;
    --line:#22304d;

    --bg:#0b1120;
    --bg-soft:#0f1830;
    --card:#101a33;

    --band:#0a1226;
    --band-ink:#e8edf7;
    --band-sub:#94a3b8;

    --nav-bg:rgba(11,17,32,.82);

    --shadow:0 1px 2px rgba(0,0,0,.4), 0 16px 38px rgba(0,0,0,.5);
    --shadow-lg:0 24px 60px rgba(0,0,0,.65);
  }
}

/* ============================================================
   Base
   ============================================================ */
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
body{
  margin:0;font-family:var(--font-body);color:var(--ink);background:var(--bg);
  line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none}
h1,h2,h3{font-family:var(--font-display);font-weight:600;line-height:1.12;margin:0;letter-spacing:-.01em}
h2{font-size:clamp(1.9rem,3.6vw,2.6rem)}
h3{font-size:1.2rem}
p{margin:.5rem 0}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.container--narrow{max-width:760px}
.skip{position:absolute;left:-999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;border-radius:0 0 8px 0;z-index:100}
.skip:focus{left:0}

/* Scroll progress */
.progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--accent),var(--accent-2));z-index:60;transition:width .1s linear}

/* ============================================================
   Buttons + links
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:.4em;
  padding:.72rem 1.25rem;border-radius:999px;font-weight:600;font-size:.95rem;font-family:var(--font-body);
  border:1.5px solid transparent;cursor:pointer;transition:transform .16s ease, box-shadow .22s ease, background .2s ease;
}
.btn--primary{background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;box-shadow:0 10px 24px rgba(37,99,235,.30)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(37,99,235,.40)}
.btn--ghost{background:var(--card);color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.btn-row{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;margin-top:1.4rem}
.btn-row--center{justify-content:center}

.link{font-weight:600;color:var(--accent);border-bottom:1.5px solid transparent;transition:border-color .15s}
.link:hover{border-color:var(--accent)}
.link--strong{font-size:1.02rem}

/* ============================================================
   Nav
   ============================================================ */
.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--line)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.nav__brand{font-family:var(--font-display);font-weight:600;font-size:1.25rem;color:var(--ink);letter-spacing:-.01em}
.nav__links{display:flex;align-items:center;gap:1.4rem}
.nav__links a:not(.btn){color:var(--ink-soft);font-weight:600;font-size:.95rem}
.nav__links a:not(.btn):hover{color:var(--accent)}
.nav__cta{padding:.5rem 1.1rem}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;padding:8px;cursor:pointer}
.nav__toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.2s}

/* ============================================================
   Hero
   ============================================================ */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,var(--bg),var(--bg-soft));padding:clamp(2.8rem,7vw,5.5rem) 0}
.hero::before{
  content:"";position:absolute;inset:-25% -10% auto -10%;height:80%;z-index:0;pointer-events:none;
  background:
    radial-gradient(620px 320px at 22% 18%, color-mix(in srgb, var(--accent) 20%, transparent), transparent 62%),
    radial-gradient(520px 320px at 84% 8%, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 60%);
  filter:blur(8px);animation:heroFloat 22s ease-in-out infinite alternate;
}
@keyframes heroFloat{from{transform:translateY(-10px)}to{transform:translateY(10px)}}
.hero__inner{position:relative;z-index:1;display:grid;grid-template-columns:1.35fr .9fr;gap:clamp(1.5rem,4vw,3rem);align-items:center}
.status{display:inline-flex;align-items:center;gap:.55em;font-size:.82rem;font-weight:600;color:var(--accent);background:var(--accent-soft);border:1px solid color-mix(in srgb, var(--accent) 22%, transparent);padding:.34rem .85rem;border-radius:999px;margin-bottom:1rem}
.status::before{content:"";width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 3px color-mix(in srgb, #22c55e 25%, transparent)}
.hero__eyebrow{color:var(--muted);font-weight:600;font-size:.92rem;margin:0}
.hero__name{font-size:clamp(2.8rem,7vw,4.4rem);font-weight:600;margin:.35rem 0 0;letter-spacing:-.015em}
.hero__name::after{content:"";display:block;width:88px;height:5px;margin-top:1rem;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2))}
.hero__lead{font-size:clamp(1.08rem,2.2vw,1.3rem);color:var(--ink-soft);max-width:38ch;margin-top:1.1rem}
.hero__lead strong{color:var(--ink);font-weight:700}
.hero__chips{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;padding:0;margin:1.2rem 0 0}
.hero__chips li{background:var(--card);border:1px solid var(--line);border-radius:999px;padding:.34rem .85rem;font-size:.85rem;font-weight:600;color:var(--ink-soft)}
.hero__pills{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:1rem}
.pill{background:var(--accent-soft);color:var(--accent);border-radius:999px;padding:.38rem .9rem;font-size:.85rem;font-weight:700}
.pill--static{background:var(--card);border:1px solid var(--line);color:var(--ink-soft)}
.hero__photo{position:relative;justify-self:center}
.hero__photo::before{content:"";position:absolute;inset:-9%;border-radius:34px;z-index:0;background:linear-gradient(140deg, color-mix(in srgb, var(--accent) 40%, transparent), color-mix(in srgb, var(--accent-2) 34%, transparent));filter:blur(30px);opacity:.55}
.hero__photo img{position:relative;z-index:1;width:min(340px,74vw);aspect-ratio:2/3;border-radius:22px;object-fit:cover;object-position:center top;border:6px solid var(--card);box-shadow:var(--shadow-lg)}

/* ============================================================
   Proof strip (dark band)
   ============================================================ */
.strip{background:var(--band);color:var(--band-ink)}
.strip__inner{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:1rem;padding:1.2rem 20px .9rem}
.strip__item{display:flex;flex-direction:column;align-items:center;flex:1 1 120px}
.strip__item b{font-family:var(--font-display);font-size:1.5rem;font-weight:600}
.strip__item span{font-size:.82rem;color:var(--band-sub)}

/* ============================================================
   Sections
   ============================================================ */
.section{padding:clamp(3.5rem,8vw,6rem) 0}
.section--alt{background:var(--bg-soft)}
.section__head{max-width:58ch;margin-bottom:2.4rem}
.section__head h2::before{content:"";display:block;width:40px;height:4px;border-radius:99px;background:linear-gradient(90deg,var(--accent),var(--accent-2));margin-bottom:1rem}
.section__head p{color:var(--muted);font-size:1.08rem}
.section__more{margin-top:1.8rem}
.about__lead{font-size:1.15rem;color:var(--ink-soft);max-width:70ch;margin:0}

/* Cards grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1.1rem}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:transform .18s ease, box-shadow .22s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card__title{margin-bottom:.4rem}
.card__desc{color:var(--muted);font-size:.96rem}
.card__links{display:flex;gap:1rem;margin-top:1rem}

/* Timeline */
.timeline{list-style:none;margin:0;padding:0;display:grid;gap:1.1rem}
.timeline__item{display:grid;grid-template-columns:180px 1fr;gap:1.2rem;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.5rem 1.6rem;box-shadow:var(--shadow)}
.timeline__meta{display:flex;flex-direction:column}
.timeline__meta b{font-family:var(--font-display);font-size:1.1rem;font-weight:600}
.timeline__meta span{color:var(--muted);font-size:.9rem}
.timeline__body h3{margin-bottom:.35rem}
.timeline__body p{color:var(--ink-soft);margin:0}

/* Résumé */
.resume{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1rem;box-shadow:var(--shadow)}
.resume__frame{position:relative;width:100%;aspect-ratio:8.5/11;max-height:78vh;border-radius:var(--radius-sm);overflow:hidden;background:var(--bg-soft)}
.resume__frame iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.resume__actions{display:flex;flex-wrap:wrap;align-items:center;gap:1.2rem;margin-top:1rem}

/* Beyond */
.beyond{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;margin-bottom:1.5rem}
.feature{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;box-shadow:var(--shadow)}
.tag{display:inline-block;background:var(--accent-soft);color:var(--accent);font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.05em;padding:.3rem .75rem;border-radius:999px;margin-bottom:.7rem}
.feature h3{margin-bottom:.35rem}
.feature p{color:var(--ink-soft);margin:0}

.book{display:grid;grid-template-columns:200px 1fr;gap:1.8rem;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:1.7rem;box-shadow:var(--shadow)}
.book__cover{width:200px;height:300px;object-fit:contain;border-radius:var(--radius-sm);background:var(--bg-soft)}
.book__body h3{margin:.2rem 0;font-size:1.4rem}
.book__body p{color:var(--ink-soft)}

.interests{margin-top:1.8rem}
.interests h3{margin-bottom:.8rem}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:.7rem;margin-top:1.5rem}
.gallery img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius-sm);border:1px solid var(--line);background:var(--bg-soft)}
.gallery img.is-missing{background:linear-gradient(135deg, var(--accent-soft), var(--bg-soft))}
.gallery__link{margin-top:1rem}

/* FAQ */
.faq{display:grid;gap:.7rem}
.faq__item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);padding:.4rem 1.2rem;box-shadow:var(--shadow)}
.faq__item summary{cursor:pointer;font-weight:700;padding:.85rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+";color:var(--accent);font-weight:800;font-size:1.35rem;margin-left:1rem}
.faq__item[open] summary::after{content:"–"}
.faq__item p{color:var(--ink-soft);margin:0 0 1rem}

/* CTA */
.section--cta{background:linear-gradient(180deg,var(--bg-soft),var(--bg))}
.cta{text-align:center;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(2.2rem,5vw,3.4rem);box-shadow:var(--shadow-lg)}
.cta h2{font-size:clamp(2rem,4vw,2.8rem)}
.cta p{color:var(--muted);font-size:1.1rem}

/* Footer (dark band) */
.footer{background:var(--band);color:var(--band-ink);padding:2.2rem 0}
.footer__inner{display:flex;flex-wrap:wrap;gap:1rem;align-items:center;justify-content:space-between}
.footer__name{font-family:var(--font-display);font-weight:600;margin:0}
.footer__links{display:flex;flex-wrap:wrap;gap:1.2rem}
.footer__links a{color:var(--band-sub)}
.footer__links a:hover{color:var(--band-ink)}
.footer__copy{color:var(--band-sub);margin:0;font-size:.9rem}

/* ============================================================
   Motion
   ============================================================ */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s cubic-bezier(.22,.61,.36,1), transform .6s cubic-bezier(.22,.61,.36,1)}
.js .reveal.is-visible{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .hero::before{animation:none}
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width:820px){
  .nav__toggle{display:flex}
  .nav__links{position:absolute;top:64px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--card);border-bottom:1px solid var(--line);padding:.5rem 20px 1rem;box-shadow:var(--shadow);transform:translateY(-8px);opacity:0;pointer-events:none;transition:.18s}
  .nav__links.is-open{transform:none;opacity:1;pointer-events:auto}
  .nav__links a:not(.btn){padding:.75rem 0;border-bottom:1px solid var(--line)}
  .nav__cta{margin-top:.6rem;justify-content:center}
  .hero__inner{grid-template-columns:1fr;text-align:center}
  .hero__lead{margin-left:auto;margin-right:auto}
  .status,.hero__chips,.hero__pills,.btn-row{justify-content:center}
  .hero__name::after{margin-left:auto;margin-right:auto}
  .hero__photo{order:-1}
  .timeline__item{grid-template-columns:1fr;gap:.4rem}
  .beyond{grid-template-columns:1fr}
  .book{grid-template-columns:1fr;justify-items:center;text-align:center}
  .gallery{grid-template-columns:repeat(2,1fr)}
}

/* ============================================================
   UI/UX enhancements (motion + depth)
   ============================================================ */

/* Grain texture overlay */
body::after{content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.04;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");background-size:140px}
@media (prefers-color-scheme:dark){body::after{opacity:.06}}

/* Richer hero aurora (second layer) */
.hero::after{content:"";position:absolute;inset:auto -10% -35% 15%;height:65%;z-index:0;pointer-events:none;
  background:radial-gradient(520px 260px at 50% 50%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 62%);
  filter:blur(22px);animation:heroFloat2 26s ease-in-out infinite alternate}
@keyframes heroFloat2{from{transform:translate(0,8px)}to{transform:translate(-22px,-8px)}}

/* Animated gradient sheen on the name */
.hero__name{
  background:linear-gradient(100deg, var(--ink) 0%, var(--ink) 32%, var(--accent) 50%, var(--ink) 68%, var(--ink) 100%);
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:nameSheen 7s ease-in-out infinite}
@keyframes nameSheen{0%,100%{background-position:125% 0}50%{background-position:-25% 0}}

/* 3D tilt on hero photo */
.hero__photo{perspective:900px}
.hero__photo img{transition:transform .25s ease}

/* Card hover glow + link nudge */
.card:hover{transform:translateY(-4px);box-shadow:0 18px 46px color-mix(in srgb, var(--accent) 24%, transparent)}
.link{transition:color .15s ease, border-color .15s ease, transform .15s ease}
.link:hover{transform:translateX(3px)}

/* Back-to-top */
.to-top{position:fixed;right:20px;bottom:20px;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:linear-gradient(135deg,#2563eb,#4f46e5);color:#fff;font-size:1.25rem;line-height:1;
  box-shadow:0 10px 24px rgba(37,99,235,.35);opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .25s ease, transform .25s ease;z-index:55}
.to-top.is-visible{opacity:1;transform:none;pointer-events:auto}
.to-top:hover{transform:translateY(-3px)}

/* Scrollspy active nav */
.nav__links a.is-active:not(.btn){color:var(--accent)}

/* Sticky mobile contact bar */
.mobile-cta{display:none}
@media (max-width:820px){
  .mobile-cta{display:flex;align-items:center;justify-content:center;gap:.4em;
    position:fixed;left:12px;right:12px;bottom:12px;z-index:56;
    padding:.9rem 1rem;border-radius:14px;font-weight:700;color:#fff;text-decoration:none;
    background:linear-gradient(135deg,#2563eb,#4f46e5);box-shadow:0 12px 30px rgba(37,99,235,.4)}
  body{padding-bottom:78px}
  .to-top{bottom:82px}
}

/* Reduced motion */
@media (prefers-reduced-motion:reduce){
  .hero::after{animation:none}
  .hero__name{animation:none}
  .hero__photo img{transition:none}
}

/* Hero badges: status + location kept visually distinct */
.hero__badges{display:flex;flex-wrap:wrap;gap:.5rem;align-items:center;margin-bottom:1rem}
.hero__badges .status{margin-bottom:0}
.loc{display:inline-flex;align-items:center;font-size:.82rem;font-weight:600;color:var(--muted);
  background:var(--card);border:1px solid var(--line);padding:.34rem .8rem;border-radius:999px}
@media (max-width:820px){.hero__badges{justify-content:center}}

/* About: scannable bullets */
.about__list{margin:1.3rem 0 0;padding:0;list-style:none;display:grid;gap:.75rem;max-width:72ch}
.about__list li{position:relative;padding-left:1.4rem;color:var(--ink-soft);font-size:1.05rem;line-height:1.55}
.about__list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:2px;background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.about__list strong{color:var(--ink);font-weight:700}

/* Strip credential line */
.strip__edu{text-align:center;color:var(--band-sub);font-size:.92rem;font-weight:500;margin:0 auto;
  padding:.85rem 20px 1.25rem;border-top:1px solid rgba(255,255,255,.1)}
.strip__edu strong{color:var(--band-ink);font-weight:600}