/* ===== Tokens ===== */
:root {
  --navy-900: #0c1a2e;
  --navy-800: #11233d;
  --navy-700: #16304f;
  --navy-600: #1f3a5f;   /* CV navy */
  --ink: #e8eef6;
  --ink-soft: #aebcd0;
  --ink-mute: #7e8da4;
  --teal: #2dd4bf;
  --teal-600: #14b8a6;
  --lilac: #a78bfa;
  --line: rgba(173, 196, 230, 0.14);
  --card: rgba(255, 255, 255, 0.035);
  --card-hover: rgba(255, 255, 255, 0.06);
  --radius: 16px;
  --maxw: 1080px;
  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  font-family: var(--font-body);
  background: var(--navy-900);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--teal); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--lilac); }

/* ===== Nav ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px max(24px, 5vw);
  background: rgba(12, 26, 46, 0);
  backdrop-filter: blur(0);
  transition: background .3s ease, backdrop-filter .3s ease, box-shadow .3s ease;
}
.nav.is-stuck {
  background: rgba(12, 26, 46, 0.82);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}
.nav__brand {
  font-family: var(--font-head); font-weight: 700; font-size: 1.25rem;
  letter-spacing: .5px; color: var(--ink);
}
.nav__dot { color: var(--teal); }
.nav__links { display: flex; align-items: center; gap: 28px; }
.nav__links a { color: var(--ink-soft); font-size: .92rem; font-weight: 500; }
.nav__links a:hover { color: var(--ink); }
.nav__cta {
  border: 1px solid var(--teal); border-radius: 999px;
  padding: 7px 18px; color: var(--teal) !important;
}
.nav__cta:hover { background: var(--teal); color: var(--navy-900) !important; }

/* ===== Hero ===== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  padding: 120px max(24px, 5vw) 80px;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(167, 139, 250, 0.16), transparent 60%),
    radial-gradient(1000px 500px at 0% 110%, rgba(45, 212, 191, 0.14), transparent 55%),
    linear-gradient(180deg, var(--navy-800), var(--navy-900));
  overflow: hidden;
}
.hero__glow { position: absolute; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.hero__glow::before, .hero__glow::after {
  content: ""; position: absolute;
  width: 65vw; height: 65vw; max-width: 920px; max-height: 920px;
  border-radius: 50%; filter: blur(90px); mix-blend-mode: screen; will-change: transform;
}
.hero__glow::before {
  background: radial-gradient(circle, rgba(45, 212, 191, 0.42), transparent 62%);
  top: -18%; left: -8%;
  animation: aurora-a 24s ease-in-out infinite alternate;
}
.hero__glow::after {
  background: radial-gradient(circle, rgba(167, 139, 250, 0.38), transparent 62%);
  bottom: -22%; right: -8%;
  animation: aurora-b 30s ease-in-out infinite alternate;
}
@keyframes aurora-a {
  0%   { transform: translate(0, 0) scale(1); opacity: .65; }
  100% { transform: translate(16%, 14%) scale(1.22); opacity: .9; }
}
@keyframes aurora-b {
  0%   { transform: translate(0, 0) scale(1.15); opacity: .55; }
  100% { transform: translate(-14%, -12%) scale(1); opacity: .85; }
}
.hero__inner { position: relative; z-index: 1; max-width: var(--maxw); margin: 0 auto; width: 100%; }
.hero__eyebrow {
  font-family: var(--font-head); text-transform: uppercase;
  letter-spacing: 3px; font-size: .78rem; color: var(--teal); margin-bottom: 20px;
}
.hero__name {
  font-family: var(--font-head); font-weight: 700;
  font-size: clamp(2.6rem, 7vw, 5.2rem); line-height: 1.02;
  letter-spacing: -1.5px; margin-bottom: 22px;
  background: linear-gradient(120deg, #fff 30%, var(--teal) 75%, var(--lilac));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__pmp { font-size: .42em; color: var(--ink-soft); -webkit-text-fill-color: var(--ink-soft); letter-spacing: 0; }
.hero__title {
  font-family: var(--font-head); font-weight: 500;
  font-size: clamp(1.05rem, 2.4vw, 1.45rem); color: var(--ink); margin-bottom: 14px;
}
.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.18rem); color: var(--ink-soft);
  max-width: 620px; margin-bottom: 32px;
}
.hero__badges { display: flex; gap: 10px; margin-bottom: 36px; flex-wrap: wrap; }
.badge {
  font-family: var(--font-head); font-weight: 600; font-size: .8rem;
  letter-spacing: .5px; padding: 6px 14px; border-radius: 999px;
  color: var(--teal); border: 1px solid rgba(45,212,191,.4);
  background: rgba(45,212,191,.08);
}
.badge--muted { color: var(--ink-soft); border-color: var(--line); background: transparent; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn {
  font-family: var(--font-head); font-weight: 600; font-size: .95rem;
  padding: 13px 26px; border-radius: 999px; cursor: pointer;
  transition: transform .15s ease, box-shadow .25s ease, background .2s ease, color .2s ease;
  display: inline-block;
}
.btn--primary {
  background: linear-gradient(120deg, var(--teal), var(--lilac));
  color: var(--navy-900);
  box-shadow: 0 8px 30px rgba(45, 212, 191, 0.25);
}
.btn--primary:hover { transform: translateY(-2px); color: var(--navy-900); box-shadow: 0 12px 38px rgba(167,139,250,.35); }
.btn--ghost { border: 1px solid var(--line); color: var(--ink); }
.btn--ghost:hover { border-color: var(--teal); color: var(--teal); transform: translateY(-2px); }

/* ===== Sections ===== */
.section { max-width: var(--maxw); margin: 0 auto; padding: 88px max(24px, 5vw); }
.section__head { display: flex; align-items: center; gap: 16px; margin-bottom: 38px; }
.section__head h2 {
  font-family: var(--font-head); font-weight: 600;
  font-size: clamp(1.5rem, 3.5vw, 2.1rem); letter-spacing: -.5px;
}
.bar { width: 5px; height: 30px; border-radius: 3px; background: linear-gradient(var(--teal), var(--lilac)); flex: none; }
.bar--center { margin: 0 auto 18px; height: 5px; width: 56px; }
.lead { font-size: clamp(1.05rem, 2.2vw, 1.28rem); color: var(--ink-soft); max-width: 800px; }

/* ===== Grid & Cards ===== */
.grid { display: grid; gap: 20px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
  transition: transform .2s ease, border-color .25s ease, background .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(45,212,191,.4); background: var(--card-hover); }
.card h3 { font-family: var(--font-head); font-weight: 600; font-size: 1.18rem; margin-bottom: 12px; }
.card p { color: var(--ink-soft); font-size: .98rem; }
.card strong { color: var(--ink); }
.card__kicker {
  font-family: var(--font-head); text-transform: uppercase; letter-spacing: 1.5px;
  font-size: .68rem; color: var(--teal); display: block; margin-bottom: 10px;
}
.card--plain ul { list-style: none; }
.card--plain li { color: var(--ink-soft); font-size: .95rem; padding: 6px 0 6px 20px; position: relative; }
.card--plain li::before { content: ""; position: absolute; left: 0; top: 14px; width: 7px; height: 7px; border-radius: 2px; background: var(--teal); }
.edu li, .certs li { padding-left: 0; }
.edu li::before, .certs li::before { display: none; }

/* ===== Timeline ===== */
.timeline { display: flex; flex-direction: column; gap: 4px; border-left: 1px solid var(--line); padding-left: 4px; }
.tl { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: 22px 8px 22px 24px; position: relative; border-radius: 12px; transition: background .2s ease; }
.tl::before { content: ""; position: absolute; left: -5px; top: 30px; width: 9px; height: 9px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px var(--navy-900); }
.tl:hover { background: var(--card); }
.tl__period { font-family: var(--font-head); font-size: .85rem; color: var(--teal); font-weight: 500; padding-top: 3px; }
.tl__body h3 { font-family: var(--font-head); font-weight: 600; font-size: 1.15rem; }
.tl__org { color: var(--ink-soft); font-weight: 500; margin-bottom: 8px; font-size: .95rem; }
.tl__body p { color: var(--ink-soft); font-size: .96rem; }

/* ===== Education ===== */
.edu, .certs { list-style: none; }
.edu li { padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); }
.edu li:last-child { border-bottom: none; }
.edu strong { color: var(--ink); }
.gpa { font-family: var(--font-head); font-size: .75rem; color: var(--teal); border: 1px solid rgba(45,212,191,.35); border-radius: 999px; padding: 2px 9px; margin-left: 8px; }
.edu__link { display: block; font-size: .88rem; margin-top: 6px; }
.certs li { display: flex; align-items: center; gap: 12px; padding: 12px 0; color: var(--ink-soft); }
.cert-badge { font-family: var(--font-head); font-weight: 700; font-size: .8rem; color: var(--lilac); border: 1px solid rgba(167,139,250,.45); background: rgba(167,139,250,.1); border-radius: 8px; padding: 5px 11px; min-width: 74px; text-align: center; }
.certs__issuer { font-size: .85rem; color: var(--ink-mute); margin-top: 6px; }

/* ===== Contact ===== */
.section--contact { text-align: center; }
.contact {
  background: radial-gradient(800px 300px at 50% 0%, rgba(167,139,250,.12), transparent 60%), var(--card);
  border: 1px solid var(--line); border-radius: 24px; padding: 64px 32px;
}
.contact h2 { font-family: var(--font-head); font-size: clamp(1.8rem, 4vw, 2.6rem); margin-bottom: 12px; }
.contact p { color: var(--ink-soft); margin-bottom: 28px; }
.contact__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.footer { text-align: center; padding: 36px; color: var(--ink-mute); font-size: .85rem; border-top: 1px solid var(--line); }

/* ===== Reveal animation ===== */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* ===== Responsive ===== */
@media (max-width: 860px) {
  .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .tl { grid-template-columns: 1fr; gap: 6px; }
  .tl__period { padding-top: 0; }
  .nav__links a:not(.nav__cta) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__glow::before, .hero__glow::after { animation: none; }
  html { scroll-behavior: auto; }
}