:root {
  --bg: #0b1210;
  --bg-alt: #101a17;
  --card: #15221e;
  --line: #22342e;
  --text: #e6efeb;
  --muted: #92a69e;
  --accent: #3ee6a8;
  --accent-2: #b6f36b;
  --radius: 16px;
  --font: 'Inter', system-ui, sans-serif;
  --display: 'Space Grotesk', var(--font);
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { background: var(--bg); color: var(--text); font: 16px/1.65 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { font-family: var(--display); line-height: 1.1; letter-spacing: -.02em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); margin: .4rem 0 1.2rem; }
h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: .6rem; }
p { color: var(--muted); }
p + p { margin-top: 1rem; }
.wrap { width: min(1120px, 100% - 32px); margin-inline: auto; }
.icon { width: 1.15em; height: 1.15em; flex-shrink: 0; }
.eyebrow { color: var(--accent); font-weight: 600; font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; }
.grad { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.grad::after { content: '|'; color: var(--accent); -webkit-text-fill-color: var(--accent); animation: blink 1s steps(1) infinite; font-weight: 400; }
@keyframes blink { 50% { opacity: 0; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; background: var(--accent); color: #062018; font-weight: 600; padding: .85rem 1.4rem; border-radius: 999px; border: 0; cursor: pointer; font: 600 1rem var(--font); transition: transform .2s, box-shadow .2s; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 30px -10px var(--accent); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--accent); box-shadow: none; }
.btn-sm { padding: .55rem 1.1rem; font-size: .9rem; }

/* Nav */
.nav { position: fixed; inset: 0 0 auto; z-index: 50; transition: background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(11, 18, 16, .85); backdrop-filter: blur(12px); border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: .6rem; font: 700 1.25rem var(--display); }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #062018; }
.nav-links { display: flex; align-items: center; gap: 2rem; font-weight: 500; }
.nav-links a:not(.btn) { color: var(--muted); transition: color .2s; }
.nav-links a:not(.btn):hover { color: var(--text); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .3s; }

/* Hero */
.hero { position: relative; padding: 160px 0 110px; overflow: hidden; }
.glow { position: absolute; width: 700px; height: 700px; right: -200px; top: -200px; background: radial-gradient(circle, rgba(62, 230, 168, .18), transparent 65%); pointer-events: none; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 3rem; align-items: center; position: relative; }
.lead { font-size: 1.15rem; max-width: 34rem; }
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }
.hero-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .7); transform: rotate(1.5deg); }
.term-bar { display: flex; gap: 6px; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: var(--line); }
.term-bar i:first-child { background: #ff6b6b; } .term-bar i:nth-child(2) { background: #ffd166; } .term-bar i:last-child { background: var(--accent); }
pre { padding: 1.4rem; font: .92rem/1.8 ui-monospace, Menlo, monospace; overflow-x: auto; }
pre .c { color: #5d7a6f; } pre .k { color: var(--accent); } pre .s { color: var(--accent-2); }

/* Sections */
.section { padding: 110px 0; }
.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section-head { max-width: 40rem; margin-bottom: 2.5rem; }
.about-grid, .skills-grid, .contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.stats { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem; }
.stats li { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.2rem; }
.stats strong { display: block; font: 700 2rem var(--display); color: var(--accent); }
.stats span { color: var(--muted); font-size: .85rem; }

/* Tabs */
.tabs { display: inline-flex; gap: .4rem; padding: .4rem; background: var(--card); border: 1px solid var(--line); border-radius: 999px; margin-bottom: 2rem; flex-wrap: wrap; }
.tab { display: inline-flex; align-items: center; gap: .5rem; background: none; border: 0; color: var(--muted); font: 600 .95rem var(--font); padding: .7rem 1.3rem; border-radius: 999px; cursor: pointer; transition: all .25s; }
.tab:hover { color: var(--text); }
.tab.active { background: var(--accent); color: #062018; }
.panel { display: none; grid-template-columns: auto 1fr; gap: 2rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 2.5rem; }
.panel.active { display: grid; animation: fadeUp .45s ease; }
.panel-icon { width: 72px; height: 72px; border-radius: 18px; display: grid; place-items: center; background: rgba(62, 230, 168, .1); color: var(--accent); }
.panel-icon .icon { width: 34px; height: 34px; }
.checks { list-style: none; padding: 0; margin-top: 1.4rem; display: grid; gap: .6rem; }
.checks li { display: flex; align-items: center; gap: .6rem; }
.checks .icon { color: var(--accent); }

/* Skill bars */
.bars { display: grid; gap: 1.6rem; }
.bar-label { display: flex; justify-content: space-between; font-weight: 600; margin-bottom: .5rem; }
.bar-label span:last-child { color: var(--accent); font-family: var(--display); }
.bar-track { height: 10px; background: var(--card); border: 1px solid var(--line); border-radius: 99px; overflow: hidden; }
.bar-fill { height: 100%; width: 0; background: linear-gradient(90deg, var(--accent), var(--accent-2)); border-radius: 99px; transition: width 1.4s cubic-bezier(.2, .8, .2, 1); }
.bar.in .bar-fill { width: var(--w); }

/* Contact */
.contact-list { list-style: none; padding: 0; margin-top: 2rem; display: grid; gap: 1rem; }
.contact-list li { display: flex; align-items: center; gap: .9rem; padding: 1rem 1.2rem; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.contact-list .icon { color: var(--accent); }
.contact-list a:hover { color: var(--accent); }
.form { display: grid; gap: 1rem; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 2rem; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: grid; gap: .4rem; font-size: .9rem; font-weight: 500; color: var(--muted); }
.form input, .form select, .form textarea { width: 100%; background: var(--bg); color: var(--text); border: 1px solid var(--line); border-radius: 10px; padding: .8rem 1rem; font: inherit; transition: border-color .2s; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--accent); }
.form .invalid { border-color: #ff6b6b; }
.form .btn { justify-self: start; }
.form .btn[disabled] { opacity: .6; pointer-events: none; }
.hp { position: absolute; left: -9999px; }
.form-msg { min-height: 1.4em; font-size: .95rem; }
.form-msg.ok { color: var(--accent); } .form-msg.err { color: #ff8b8b; }

/* Footer */
.footer { padding: 2rem 0; border-top: 1px solid var(--line); color: var(--muted); font-size: .9rem; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer nav { display: flex; gap: 1.5rem; }
.footer a:hover { color: var(--accent); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(12px); } }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; } * { animation: none !important; transition: none !important; } }

/* Mobile */
@media (max-width: 860px) {
  .hero { padding: 120px 0 70px; }
  .hero-grid, .about-grid, .skills-grid, .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-card { transform: none; }
  .section { padding: 72px 0; }
  .panel { grid-template-columns: 1fr; padding: 1.6rem; }
  .form .row { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr 1fr; }
  .stats strong { font-size: 1.5rem; }
  .nav-toggle { display: block; }
  .nav-links { position: fixed; inset: 72px 0 auto; flex-direction: column; gap: 1.2rem; padding: 2rem 16px; background: var(--bg); border-bottom: 1px solid var(--line); transform: translateY(-120%); transition: transform .35s; }
  .nav.open .nav-links { transform: none; }
  .nav.open .nav-toggle span:first-child { transform: translateY(3.5px) rotate(45deg); }
  .nav.open .nav-toggle span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
}