/* ---------- Design tokens ---------- */
:root{
  --navy-950:#0a0f1e;
  --navy-900:#0f1729;
  --navy-800:#152039;
  --navy-700:#1e2c4d;
  --navy-100:#e8ecf5;
  --paper:#f8f7f3;
  --paper-alt:#f1efe7;
  --ink:#101322;
  --ink-soft:#4a5164;
  --gold:#b8912f;
  --gold-bright:#d4af37;
  --line:#e2e0d6;
  --radius:14px;
  --font-display:'Fraunces', Georgia, serif;
  --font-body:'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-w:1120px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3{font-family:var(--font-display);margin:0;line-height:1.15;font-weight:600;}

.container{
  max-width:var(--max-w);
  margin:0 auto;
  padding:0 24px;
}

/* ---------- Progress bar ---------- */
.progress-bar{
  position:fixed;top:0;left:0;height:3px;width:0%;
  background:linear-gradient(90deg,var(--gold),var(--gold-bright));
  z-index:1000;transition:width .1s linear;
}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;
  z-index:900;
  background:rgba(248,247,243,0.85);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease, background .3s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.logo{
  font-family:var(--font-display);
  font-weight:600;font-size:22px;
  color:var(--navy-900);
  border:2px solid var(--navy-900);
  width:40px;height:40px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
}
.nav{display:flex;align-items:center;gap:32px;}
.nav a{
  font-size:15px;font-weight:500;color:var(--ink-soft);
  position:relative;padding:4px 0;
  transition:color .2s ease;
}
.nav a:hover{color:var(--navy-900);}
.nav a.nav-cta{
  color:#fff;background:var(--navy-900);
  padding:9px 18px;border-radius:999px;
  transition:background .2s ease;
}
.nav a.nav-cta:hover{background:var(--gold);}

.nav-toggle{
  display:none;
  flex-direction:column;justify-content:center;gap:5px;
  width:36px;height:36px;background:none;border:none;cursor:pointer;
}
.nav-toggle span{
  display:block;width:100%;height:2px;background:var(--navy-900);
  transition:transform .25s ease, opacity .25s ease;
}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{
  min-height:100vh;
  display:flex;align-items:center;
  padding:140px 0 80px;
  background:
    radial-gradient(circle at 85% 15%, rgba(184,145,47,0.14), transparent 55%),
    var(--paper);
}
.hero-inner{max-width:760px;}
.hero-photo-wrap{
  width:108px;height:108px;border-radius:50%;overflow:hidden;
  border:3px solid var(--gold);margin-bottom:24px;
  box-shadow:0 8px 24px rgba(15,23,41,0.12);
}
.hero-photo{width:100%;height:100%;object-fit:cover;}
.eyebrow{
  text-transform:uppercase;letter-spacing:.14em;font-size:13px;
  font-weight:600;color:var(--gold);margin:0 0 18px;
}
.hero h1{
  font-size:clamp(42px,7vw,72px);
  color:var(--navy-950);
  margin-bottom:20px;
}
.hero-sub{
  font-size:18px;color:var(--ink-soft);max-width:600px;margin-bottom:36px;
}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:56px;}
.btn{
  display:inline-block;padding:14px 26px;border-radius:999px;
  font-weight:600;font-size:15px;transition:all .2s ease;border:2px solid transparent;
}
.btn-primary{background:var(--navy-950);color:#fff;}
.btn-primary:hover{background:var(--gold);color:var(--navy-950);}
.btn-outline{border-color:var(--navy-950);color:var(--navy-950);}
.btn-outline:hover{background:var(--navy-950);color:#fff;}

.hero-facts{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  border-top:1px solid var(--line);padding-top:32px;
}
.hero-facts span{
  display:block;font-family:var(--font-display);font-size:28px;color:var(--navy-950);
}
.hero-facts small{color:var(--ink-soft);font-size:13px;}

/* ---------- Sections ---------- */
.section{padding:110px 0;}
.section-alt{background:var(--paper-alt);}
.section-label{
  text-transform:uppercase;letter-spacing:.14em;font-size:13px;
  font-weight:600;color:var(--gold);margin:0 0 14px;
}
.section-title{
  font-size:clamp(28px,4vw,40px);color:var(--navy-950);max-width:720px;margin-bottom:56px;
}

/* About */
.about-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:64px;}
.about-copy p{color:var(--ink-soft);font-size:17px;margin-bottom:20px;}
.about-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-content:start;}
.about-item h3{font-size:16px;font-family:var(--font-body);font-weight:700;color:var(--navy-900);margin-bottom:8px;}
.about-item p{font-size:14.5px;color:var(--ink-soft);margin:0;}

/* Timeline */
.timeline{position:relative;padding-left:32px;border-left:2px solid var(--line);}
.timeline-item{position:relative;padding-bottom:52px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-marker{
  position:absolute;left:-39px;top:4px;
  width:14px;height:14px;border-radius:50%;
  background:var(--paper-alt);border:3px solid var(--gold);
}
.timeline-head{
  display:flex;justify-content:space-between;align-items:baseline;flex-wrap:wrap;gap:8px;
  margin-bottom:4px;
}
.timeline-head h3{font-size:20px;color:var(--navy-950);}
.timeline-date{font-size:13px;color:var(--gold);font-weight:600;white-space:nowrap;}
.timeline-org{color:var(--ink-soft);font-weight:500;margin:0 0 14px;font-size:15px;}
.timeline-content ul{display:grid;gap:8px;}
.timeline-content li{
  color:var(--ink-soft);font-size:15px;position:relative;padding-left:18px;
}
.timeline-content li::before{
  content:'';position:absolute;left:0;top:9px;width:6px;height:6px;
  border-radius:50%;background:var(--navy-700);
}

/* Ventures */
.venture-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:40px;margin-bottom:12px;
}
.venture-title-row{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  margin-bottom:56px;
}
.venture-title{
  font-family:var(--font-display);font-size:clamp(28px,4vw,40px);
  color:var(--navy-950);margin:0;
}
.venture-deck-link{
  display:inline-block;font-weight:600;font-size:14px;color:var(--gold);
  margin-bottom:24px;border-bottom:1px solid var(--gold);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.venture-deck-link:hover{color:var(--navy-950);border-color:var(--navy-950);}
.venture-product-tag{
  font-family:var(--font-body);font-size:13px;font-weight:600;
  text-transform:uppercase;letter-spacing:.08em;color:#fff;
  background:var(--navy-950);padding:7px 16px;border-radius:999px;
  white-space:nowrap;
}
.venture-role{color:var(--gold);font-weight:600;font-size:14px;margin-bottom:14px;}
.venture-main p{color:var(--ink-soft);font-size:16px;max-width:680px;}
.venture-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;
}
.venture-stats-alt{grid-template-columns:repeat(3,1fr);}
.venture-stats div{border-top:1px solid var(--line);padding-top:14px;}
.venture-stat-link{
  display:block;border-top:1px solid var(--line);padding-top:14px;
  text-decoration:none;color:inherit;
}
.venture-stat-link strong{transition:color .2s ease;}
.venture-stat-link:hover strong{color:var(--gold);}
.venture-stats strong{
  display:block;font-family:var(--font-display);font-size:26px;color:var(--navy-950);
}
.venture-stats span{font-size:13px;color:var(--ink-soft);}
.ventures-spacer{margin-top:64px;}

/* Skills */
.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;}
.skill-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;
}
.skill-card h3{font-family:var(--font-body);font-size:15px;font-weight:700;color:var(--navy-900);margin-bottom:16px;}
.tag-list{display:flex;flex-direction:column;gap:10px;}
.tag-list li{
  font-size:14px;color:var(--ink-soft);padding-bottom:10px;border-bottom:1px solid var(--line);
}
.tag-list li:last-child{border-bottom:none;padding-bottom:0;}
.tag-list em{color:var(--gold);font-style:normal;font-weight:600;}

/* Education */
.edu-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.edu-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;
}
.edu-card h3{font-size:20px;color:var(--navy-950);margin-bottom:8px;}
.edu-card h3 em{font-size:14px;color:var(--gold);font-style:normal;font-family:var(--font-body);font-weight:600;}
.edu-school{font-weight:600;color:var(--ink);margin:0 0 6px;}
.edu-meta{color:var(--ink-soft);font-size:14px;margin:0 0 10px;}
.edu-honors{color:var(--gold);font-size:13.5px;font-weight:600;margin:0;}

/* Contact */
.section-contact{
  background:var(--navy-950);color:#fff;text-align:center;
}
.section-contact .section-label{color:var(--gold-bright);}
.section-contact .section-title{color:#fff;margin-left:auto;margin-right:auto;}
.contact-inner{display:flex;flex-direction:column;align-items:center;}
.contact-copy{color:#c7cbe0;max-width:520px;margin:0 auto 32px;font-size:16px;}
.contact-actions{display:flex;gap:16px;flex-wrap:wrap;justify-content:center;}
.section-contact .btn-outline{border-color:#fff;color:#fff;}
.section-contact .btn-outline:hover{background:#fff;color:var(--navy-950);}
.section-contact .btn-primary{background:var(--gold);color:var(--navy-950);}
.section-contact .btn-primary:hover{background:var(--gold-bright);}

/* Footer */
.site-footer{padding:28px 0;background:var(--navy-950);color:#8790ab;border-top:1px solid rgba(255,255,255,0.08);}
.footer-inner{display:flex;justify-content:space-between;font-size:13px;}
.footer-inner a{color:#8790ab;}
.footer-inner a:hover{color:#fff;}

/* ---------- Reveal animation ---------- */
.reveal{
  opacity:0;transform:translateY(18px);
  transition:opacity .6s ease, transform .6s ease;
}
.reveal.in-view{opacity:1;transform:translateY(0);}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .about-grid{grid-template-columns:1fr;gap:40px;}
  .skills-grid{grid-template-columns:1fr 1fr;}
  .edu-grid{grid-template-columns:1fr;}
  .venture-stats{grid-template-columns:1fr 1fr;}
}

@media (max-width:680px){
  .nav{
    position:fixed;top:72px;left:0;right:0;
    background:var(--paper);border-bottom:1px solid var(--line);
    flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 20px;
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .2s ease, transform .2s ease;
  }
  .nav.open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .nav a{padding:14px 0;border-bottom:1px solid var(--line);}
  .nav a.nav-cta{text-align:center;margin-top:12px;border-bottom:none;}
  .nav-toggle{display:flex;}
  .hero-facts{grid-template-columns:1fr 1fr;}
  .skills-grid{grid-template-columns:1fr;}
  .venture-stats{grid-template-columns:1fr;}
  .venture-card{padding:28px 22px;}
  .section{padding:76px 0;}
}