/*
  Signal — shared design system for ranjeetreddy14.github.io
  Copyright © 2025 Ranjeet Reddy Manchana. All rights reserved.
*/

/* ---------- Tokens ---------- */
:root {
  --bg: #07080d;
  --bg-2: #0b0d14;
  --surface: #0f1119;
  --surface-2: #151826;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);

  --text: #eceef5;
  --muted: #a0a6bb;
  --faint: #70778e;

  --violet: #8b7bff;
  --violet-deep: #5e42a6;
  --pink: #ff8fd0;
  --pass: #3ee6a8;
  --block: #ff5d73;
  --amber: #ffc857;
  --cyan: #56c4ff;

  --grad: linear-gradient(120deg, #b9aeff 0%, #8b7bff 40%, #ff8fd0 100%);

  --font-display: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --radius: 18px;
  --radius-sm: 10px;
  --maxw: 1160px;
  --nav-h: 64px;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.7 var(--font-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, video, canvas { max-width: 100%; display: block; }
a { color: var(--violet); text-decoration: none; transition: color .2s; }
a:hover { color: #b9aeff; }
::selection { background: rgba(139, 123, 255, 0.4); color: #fff; }
:focus-visible { outline: 2px solid var(--violet); outline-offset: 3px; border-radius: 6px; }

h1, h2, h3, h4 { margin: 0; line-height: 1.1; font-weight: 400; }
p { margin: 0 0 1.1em; }
code, kbd {
  font-family: var(--font-mono);
  font-size: .86em;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .12em .45em;
  color: #d8d4ff;
}

.skip {
  position: fixed; left: 12px; top: -60px; z-index: 200;
  background: var(--violet); color: #0a0a14; padding: 10px 16px; border-radius: 8px; font-weight: 600;
}
.skip:focus { top: 12px; color: #0a0a14; }

.container { width: min(var(--maxw), 100% - 48px); margin-inline: auto; }

/* scroll progress */
.progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 120;
  transform-origin: 0 50%; transform: scaleX(0);
  background: var(--grad);
}

/* ---------- Navigation ---------- */
.nav {
  position: fixed; z-index: 100; top: 14px; left: 50%; transform: translateX(-50%);
  width: min(var(--maxw), 100% - 28px);
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 0 10px 0 20px;
  background: rgba(12, 14, 22, 0.55);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: background .3s, border-color .3s, box-shadow .3s;
}
.nav.scrolled { background: rgba(10, 12, 19, 0.82); border-color: var(--line-2); box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45); }
.brand { display: flex; align-items: center; gap: 12px; color: var(--text); font-weight: 600; font-size: .95rem; letter-spacing: -.01em; white-space: nowrap; }
.brand:hover { color: #fff; }
.brand-mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(145deg, #2a2160, #14102e);
  border: 1px solid rgba(139, 123, 255, .5);
  box-shadow: 0 0 18px rgba(139, 123, 255, .35);
}
.nav-links { display: flex; align-items: center; gap: 4px; list-style: none; margin: 0; padding: 0; }
.nav-links a {
  display: block; padding: 8px 14px; border-radius: 999px;
  font-size: .86rem; font-weight: 500; color: var(--muted);
}
.nav-links a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.nav-links a.active { color: #fff; background: rgba(139, 123, 255, .16); }
.nav-end { display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; background: none; border: 1px solid var(--line-2); width: 42px; height: 42px; border-radius: 50%; cursor: pointer; color: var(--text); }
.nav-toggle span { display: block; width: 16px; height: 1.5px; background: currentColor; margin: 4px auto; transition: transform .25s, opacity .25s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 22px; border-radius: 999px; cursor: pointer;
  font: 600 .9rem/1 var(--font-body); letter-spacing: -.005em;
  border: 1px solid transparent; transition: transform .2s, box-shadow .2s, background .2s, border-color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: #f3f1ff; color: #0b0a18; box-shadow: 0 8px 30px rgba(139, 123, 255, .28); }
.btn-primary:hover { color: #0b0a18; background: #fff; box-shadow: 0 12px 40px rgba(139, 123, 255, .5); }
.btn-ghost { color: var(--text); border-color: var(--line-2); background: rgba(255, 255, 255, .03); }
.btn-ghost:hover { color: #fff; border-color: rgba(139, 123, 255, .6); background: rgba(139, 123, 255, .1); }
.btn-sm { padding: 10px 18px; font-size: .82rem; }
.btn .arrow { transition: transform .2s; }
.btn:hover .arrow { transform: translateX(4px); }

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  padding: calc(var(--nav-h) + 60px) 0 90px; overflow: hidden; isolation: isolate;
  background:
    radial-gradient(900px 600px at 82% 8%, rgba(94, 66, 166, .55), transparent 60%),
    radial-gradient(700px 500px at 5% 95%, rgba(183, 78, 145, .22), transparent 60%),
    var(--bg);
}
.hero::before { /* faint grid */
  content: ""; position: absolute; inset: 0; z-index: -2; opacity: .55;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 20%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 60% 40%, #000 20%, transparent 75%);
}
.hero::after { /* bottom fade into page */
  content: ""; position: absolute; inset: auto 0 0 0; height: 160px; z-index: -1;
  background: linear-gradient(to bottom, transparent, var(--bg));
}
#gate { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; }
.hero-glow {
  position: absolute; width: 520px; height: 520px; border-radius: 50%; z-index: -1; pointer-events: none;
  left: 0; top: 0; transform: translate(var(--gx, 70vw), var(--gy, 30vh)) translate(-50%, -50%);
  background: radial-gradient(circle, rgba(139, 123, 255, .16), transparent 65%);
}
.eyebrow {
  font: 500 .74rem/1 var(--font-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--violet);
  display: inline-flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; opacity: .7; }
.hero h1 {
  font-family: var(--font-display); font-size: clamp(3.4rem, 9.4vw, 8.2rem); line-height: .92; letter-spacing: -.025em;
  margin: 26px 0 22px; max-width: 12ch;
}
.hero h1 em, .grad {
  font-style: italic; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; padding-right: .06em;
}
.hero-role { font-size: clamp(1.1rem, 2.2vw, 1.5rem); color: var(--text); margin-bottom: 20px; min-height: 1.6em; }
.hero-role .typed { color: var(--pass); font-family: var(--font-mono); font-weight: 500; }
.caret { display: inline-block; width: .55ch; height: 1.05em; background: var(--pass); vertical-align: -.15em; margin-left: 3px; animation: blink 1.05s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-copy { max-width: 560px; color: var(--muted); font-size: 1.06rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 42px; }
.tag {
  font: 500 .72rem/1 var(--font-mono); letter-spacing: .04em; color: var(--muted);
  padding: 8px 12px; border: 1px solid var(--line-2); border-radius: 999px; background: rgba(255, 255, 255, .025);
}
.hero-sim {
  position: absolute; right: 24px; bottom: 28px; z-index: 2; display: flex; gap: 18px; align-items: center;
  font: 500 .7rem/1 var(--font-mono); color: var(--faint); letter-spacing: .08em; text-transform: uppercase;
  padding: 10px 14px; border: 1px solid var(--line); border-radius: 999px; background: rgba(10, 12, 19, .6);
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.hero-sim b { font-weight: 500; }
.hero-sim .ok { color: var(--pass); } .hero-sim .no { color: var(--block); }
.hero-sim .live { display: inline-flex; align-items: center; gap: 7px; }
.hero-sim .live::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--pass); box-shadow: 0 0 10px var(--pass); animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .35; } }
.scroll-cue { position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); width: 22px; height: 36px; border: 1.5px solid var(--line-2); border-radius: 12px; opacity: .7; }
.scroll-cue::after { content: ""; position: absolute; left: 50%; top: 7px; width: 3px; height: 7px; margin-left: -1.5px; border-radius: 2px; background: var(--text); animation: wheel 1.8s ease-in-out infinite; }
@keyframes wheel { 0% { opacity: 0; transform: translateY(0); } 30% { opacity: 1; } 100% { opacity: 0; transform: translateY(12px); } }

/* ---------- Sections ---------- */
section.block { padding: 120px 0; position: relative; }
.section-head { max-width: 760px; margin-bottom: 56px; }
.section-head h2 { font-family: var(--font-display); font-size: clamp(2.4rem, 5.2vw, 4rem); letter-spacing: -.02em; margin: 18px 0 0; }
.section-head p { color: var(--muted); font-size: 1.08rem; margin: 18px 0 0; }

/* About */
.about { display: grid; grid-template-columns: 380px 1fr; gap: 72px; align-items: center; }
.portrait { position: relative; }
.portrait::before {
  content: ""; position: absolute; inset: -14px; border-radius: 30px; z-index: 0;
  background: linear-gradient(145deg, rgba(139, 123, 255, .55), rgba(255, 143, 208, .0) 55%);
  filter: blur(.3px);
}
.portrait img { position: relative; z-index: 1; width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: center 30%; border-radius: 22px; border: 1px solid var(--line-2); }
.portrait-badge {
  position: absolute; z-index: 2; right: -18px; bottom: 26px; display: flex; align-items: center; gap: 10px;
  padding: 11px 16px; border-radius: 14px; background: rgba(12, 14, 22, .85); border: 1px solid var(--line-2);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  font: 500 .72rem/1.3 var(--font-mono); letter-spacing: .04em; color: var(--muted);
}
.portrait-badge i { width: 8px; height: 8px; border-radius: 50%; background: var(--pass); box-shadow: 0 0 12px var(--pass); }
.about-title { font-family: var(--font-display); font-size: clamp(2.4rem, 5.2vw, 4rem); letter-spacing: -.02em; margin: 18px 0 28px; }
.about-copy p { color: var(--muted); font-size: 1.1rem; }
.about-copy p:first-of-type { color: var(--text); font-size: 1.28rem; line-height: 1.6; }
.goal {
  margin-top: 34px; padding: 26px 28px; border-radius: var(--radius); position: relative;
  background: linear-gradient(160deg, rgba(139, 123, 255, .12), rgba(139, 123, 255, .03)); border: 1px solid rgba(139, 123, 255, .28);
}
.goal h3 { font: 500 .72rem/1 var(--font-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--violet); margin-bottom: 12px; }
.goal p { margin: 0; font-size: 1rem; color: var(--muted); }
.about-links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* Skills (bento) */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.tile {
  position: relative; padding: 30px; border-radius: var(--radius); overflow: hidden; isolation: isolate;
  background: var(--surface); border: 1px solid var(--line); transition: transform .3s, border-color .3s;
}
.tile::before, .card::before, .featured::before {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0; transition: opacity .35s;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(139, 123, 255, .16), transparent 55%);
}
.tile:hover { transform: translateY(-3px); border-color: rgba(139, 123, 255, .4); }
.tile:hover::before, .card:hover::before, .featured:hover::before { opacity: 1; }
.tile.wide { grid-column: span 2; }
.tile .ico {
  width: 46px; height: 46px; border-radius: 13px; display: grid; place-items: center; margin-bottom: 22px;
  color: var(--violet); background: rgba(139, 123, 255, .1); border: 1px solid rgba(139, 123, 255, .25);
}
.tile .ico svg { width: 22px; height: 22px; }
.tile h3 { font: 600 1.12rem/1.3 var(--font-body); letter-spacing: -.01em; margin-bottom: 10px; }
.tile p { color: var(--muted); font-size: .95rem; margin-bottom: 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; margin: 0; padding: 0; list-style: none; }
.chips li { font: 500 .72rem/1 var(--font-mono); letter-spacing: .02em; padding: 7px 11px; border-radius: 8px; color: #cfd2e6; background: var(--surface-2); border: 1px solid var(--line); }
.tile.accent { background: linear-gradient(150deg, rgba(94, 66, 166, .42), rgba(15, 17, 25, 1) 70%); border-color: rgba(139, 123, 255, .3); }
.tile .more { display: inline-flex; gap: 8px; align-items: center; margin-top: 16px; font-weight: 600; font-size: .88rem; }

/* Projects */
.featured {
  position: relative; display: grid; grid-template-columns: 1fr 1.12fr; gap: 0; overflow: hidden; isolation: isolate;
  border-radius: 26px; border: 1px solid rgba(139, 123, 255, .32);
  background: linear-gradient(160deg, rgba(40, 31, 90, .55), var(--surface) 62%);
  margin-bottom: 20px;
}
.featured-body { padding: 46px 44px; display: flex; flex-direction: column; justify-content: center; }
.badge-new {
  align-self: flex-start; font: 500 .68rem/1 var(--font-mono); letter-spacing: .16em; text-transform: uppercase;
  padding: 7px 11px; border-radius: 999px; color: #0a2a20; background: var(--pass); margin-bottom: 20px;
}
.featured h3 { font-family: var(--font-display); font-size: clamp(2rem, 3.6vw, 3rem); line-height: 1; letter-spacing: -.02em; margin-bottom: 16px; }
.featured p { color: var(--muted); font-size: 1.02rem; }
.featured-media { position: relative; padding: 34px 34px 34px 6px; display: grid; place-items: center; }
.window {
  width: 100%; border-radius: 12px; overflow: hidden; background: #1e1f22; border: 1px solid var(--line-2);
  box-shadow: 0 30px 70px rgba(0, 0, 0, .55), 0 0 60px rgba(139, 123, 255, .2);
  transform: perspective(1400px) rotateY(-5deg) rotateX(1.5deg); transition: transform .6s cubic-bezier(.2, .8, .2, 1);
}
.featured:hover .window { transform: perspective(1400px) rotateY(-1.5deg) rotateX(0); }
.window img { width: 100%; height: auto; }
.metrics { display: grid; grid-template-columns: repeat(4, auto); gap: 8px 30px; margin: 26px 0 30px; justify-content: start; }
.metric b { display: block; font: 400 2.2rem/1 var(--font-display); letter-spacing: -.01em; color: #fff; }
.metric span { display: block; margin-top: 6px; font: 500 .66rem/1.35 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }
.row-btns { display: flex; flex-wrap: wrap; gap: 12px; }

.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  position: relative; display: flex; flex-direction: column; overflow: hidden; isolation: isolate;
  border-radius: 22px; background: var(--surface); border: 1px solid var(--line); color: var(--text);
  transition: transform .35s cubic-bezier(.2, .8, .2, 1), border-color .3s, box-shadow .3s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(139, 123, 255, .45); box-shadow: 0 24px 60px rgba(0, 0, 0, .5); color: var(--text); }
.cover { position: relative; aspect-ratio: 16/8.6; overflow: hidden; background: var(--bg-2); border-bottom: 1px solid var(--line); }
.cover > svg, .cover > img { width: 100%; height: 100%; object-fit: cover; object-position: top left; transition: transform .7s cubic-bezier(.2, .8, .2, 1); }
.card:hover .cover > svg, .card:hover .cover > img { transform: scale(1.04); }
.card-body { padding: 26px 28px 30px; display: flex; flex-direction: column; flex: 1; }
.card h3 { font-family: var(--font-display); font-size: 1.85rem; line-height: 1.05; letter-spacing: -.015em; margin: 14px 0 12px; }
.card p { color: var(--muted); font-size: .96rem; margin-bottom: 20px; }
.card .go { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; font-weight: 600; font-size: .88rem; color: var(--violet); }
.card:hover .go .arrow { transform: translateX(5px); }
.card .go .arrow { transition: transform .2s; }
.mini-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.mini-tags span { font: 500 .66rem/1 var(--font-mono); letter-spacing: .05em; text-transform: uppercase; color: var(--faint); padding: 6px 9px; border: 1px solid var(--line); border-radius: 6px; }

/* flow animation inside SVG covers */
.flow { stroke-dasharray: 6 8; animation: dash 1.2s linear infinite; }
@keyframes dash { to { stroke-dashoffset: -28; } }
.ping { transform-box: fill-box; transform-origin: center; animation: ping 2.4s ease-out infinite; }
@keyframes ping { 0% { transform: scale(.6); opacity: .9; } 100% { transform: scale(1.9); opacity: 0; } }

/* Contact */
.contact { display: grid; grid-template-columns: 1.15fr 1fr; gap: 64px; align-items: start; }
.contact h2 { font-family: var(--font-display); font-size: clamp(3rem, 7vw, 5.6rem); letter-spacing: -.025em; line-height: .95; }
.contact .lede { color: var(--muted); font-size: 1.1rem; margin: 22px 0 36px; max-width: 460px; }
.form { display: grid; gap: 16px; padding: 30px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); }
.field label { display: block; font: 500 .68rem/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--faint); margin-bottom: 9px; }
.field input, .field textarea {
  width: 100%; padding: 14px 16px; border-radius: 12px; border: 1px solid var(--line-2); background: var(--bg-2); color: var(--text);
  font: 400 1rem/1.5 var(--font-body); transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field textarea:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 4px rgba(139, 123, 255, .18); }
.field textarea { resize: vertical; min-height: 130px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-status { min-height: 1.4em; font-size: .92rem; color: var(--muted); }
.form-status.ok { color: var(--pass); } .form-status.err { color: var(--block); }
.details { list-style: none; margin: 0 0 30px; padding: 0; display: grid; gap: 18px; }
.details li { display: grid; grid-template-columns: 90px 1fr; gap: 16px; align-items: baseline; padding-bottom: 18px; border-bottom: 1px solid var(--line); }
.details h3 { font: 500 .68rem/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--faint); }
.details span, .details a { color: var(--text); font-size: 1.02rem; }
.socials { display: flex; gap: 10px; }
.socials a {
  width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; color: var(--text);
  border: 1px solid var(--line-2); background: rgba(255, 255, 255, .03); transition: transform .2s, border-color .2s, background .2s;
}
.socials a:hover { transform: translateY(-3px); border-color: var(--violet); background: rgba(139, 123, 255, .14); color: #fff; }
.socials svg { width: 19px; height: 19px; }

/* Footer */
.footer { border-top: 1px solid var(--line); padding: 34px 0 44px; color: var(--faint); font-size: .86rem; }
.footer .container { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; align-items: center; }
.footer a { color: var(--muted); }
.footer a:hover { color: #fff; }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.2, .8, .2, 1), transform .8s cubic-bezier(.2, .8, .2, 1); transition-delay: var(--d, 0s); }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Command palette ---------- */
.palette { position: fixed; inset: 0; z-index: 300; display: none; align-items: flex-start; justify-content: center; padding-top: 14vh; background: rgba(4, 5, 9, .7); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.palette.open { display: flex; }
.palette-box { width: min(560px, 100% - 32px); border-radius: 18px; background: var(--surface); border: 1px solid var(--line-2); box-shadow: 0 40px 100px rgba(0, 0, 0, .7); overflow: hidden; }
.palette input { width: 100%; padding: 20px 24px; background: transparent; border: 0; border-bottom: 1px solid var(--line); color: var(--text); font: 400 1.05rem var(--font-body); }
.palette input:focus { outline: none; }
.palette ul { list-style: none; margin: 0; padding: 8px; max-height: 340px; overflow: auto; }
.palette li a { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-radius: 10px; color: var(--text); font-size: .95rem; }
.palette li a small { font: 500 .68rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
.palette li.sel a, .palette li a:hover { background: rgba(139, 123, 255, .16); }
.palette-foot { padding: 10px 18px; border-top: 1px solid var(--line); font: 500 .68rem var(--font-mono); letter-spacing: .06em; color: var(--faint); display: flex; gap: 18px; }
.kbd-hint { font: 500 .7rem var(--font-mono); color: var(--faint); padding: 5px 8px; border: 1px solid var(--line-2); border-radius: 7px; background: transparent; cursor: pointer; }
.kbd-hint:hover { color: #fff; border-color: var(--violet); }

/* ---------- Sub-pages ---------- */
.page { position: relative; isolation: isolate; padding-top: calc(var(--nav-h) + 70px); }
.page::before { content: ""; position: absolute; inset: 0 0 auto 0; height: 640px; z-index: -1; pointer-events: none;
  background: radial-gradient(800px 420px at 78% 6%, rgba(94, 66, 166, .5), transparent 65%), radial-gradient(520px 320px at 8% 30%, rgba(183, 78, 145, .14), transparent 65%); }
.page-hero { padding: 40px 0 36px; position: relative; }
.crumb { display: inline-flex; gap: 10px; align-items: center; font: 500 .72rem/1 var(--font-mono); letter-spacing: .14em; text-transform: uppercase; color: var(--faint); }
.crumb a { color: var(--muted); } .crumb a:hover { color: #fff; }
.page-hero h1 { font-family: var(--font-display); font-size: clamp(2.6rem, 6.4vw, 5.2rem); letter-spacing: -.025em; line-height: .98; margin: 22px 0 22px; max-width: 18ch; }
.page-hero .lede { font-size: clamp(1.08rem, 1.6vw, 1.3rem); color: var(--muted); max-width: 720px; line-height: 1.6; }
.page-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 26px; }

.page-body { padding: 24px 0 110px; }
.narrow { width: min(780px, 100% - 48px); margin-inline: auto; }
.wrap-wide { width: min(1040px, 100% - 48px); margin-inline: auto; }

.prose h2 { font-family: var(--font-display); font-size: clamp(1.9rem, 3.4vw, 2.6rem); letter-spacing: -.015em; margin: 76px 0 20px; scroll-margin-top: 100px; }
.prose h2 small { display: block; font: 500 .7rem/1 var(--font-mono); letter-spacing: .18em; text-transform: uppercase; color: var(--violet); margin-bottom: 14px; }
.prose h3 { font: 600 1.2rem/1.3 var(--font-body); letter-spacing: -.01em; margin: 38px 0 12px; }
.prose h4 { font: 600 1.05rem/1.3 var(--font-body); margin: 40px 0 8px; color: #fff; }
.prose p, .prose li { color: #c3c8da; font-size: 1.04rem; }
.prose ul, .prose ol { padding-left: 1.3em; margin: 0 0 1.4em; }
.prose li { margin-bottom: .6em; }
.prose li::marker { color: var(--violet); }
.prose strong { color: #fff; font-weight: 600; }
.prose a { border-bottom: 1px solid rgba(139, 123, 255, .4); }
.prose a:hover { border-color: #b9aeff; }
.prose em { color: #dcd9ff; }

figure { margin: 34px 0; }
figure img, figure svg, figure video { width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--line-2); background: var(--surface); }
figure.light img { background: #fff; padding: 14px; }
figcaption { margin-top: 12px; font: 500 .72rem/1.5 var(--font-mono); letter-spacing: .04em; color: var(--faint); text-align: center; }
.shot { box-shadow: 0 30px 70px rgba(0, 0, 0, .5), 0 0 70px rgba(139, 123, 255, .12); }

.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 10px 0 20px; }
.stat { padding: 22px 22px 20px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.stat b { display: block; font: 400 2.5rem/1 var(--font-display); color: #fff; letter-spacing: -.01em; }
.stat b .grad { font-style: normal; }
.stat span { display: block; margin-top: 10px; font: 500 .68rem/1.4 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }

.steps { list-style: none; counter-reset: s; padding: 0 !important; display: grid; gap: 14px; margin: 28px 0 !important; }
.steps li { counter-increment: s; position: relative; margin: 0; padding: 22px 24px 22px 76px; border-radius: 16px; background: var(--surface); border: 1px solid var(--line); }
.steps li::before {
  content: counter(s); position: absolute; left: 22px; top: 20px; width: 38px; height: 38px; border-radius: 12px; display: grid; place-items: center;
  font: 500 .95rem var(--font-mono); color: var(--violet); background: rgba(139, 123, 255, .12); border: 1px solid rgba(139, 123, 255, .3);
}
.steps li:last-child::before { color: var(--pass); background: rgba(62, 230, 168, .1); border-color: rgba(62, 230, 168, .35); }
.steps li strong { display: block; margin-bottom: 4px; font-size: 1.04rem; }

.callout { margin: 30px 0; padding: 24px 28px; border-radius: 16px; border: 1px solid rgba(139, 123, 255, .3); background: linear-gradient(160deg, rgba(139, 123, 255, .12), rgba(139, 123, 255, .03)); }
.callout p:last-child { margin: 0; }
.callout.warn { border-color: rgba(255, 200, 87, .35); background: linear-gradient(160deg, rgba(255, 200, 87, .1), rgba(255, 200, 87, .02)); }

.table-wrap { overflow-x: auto; margin: 26px 0; border-radius: 14px; border: 1px solid var(--line-2); background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: .95rem; min-width: 560px; }
th { text-align: left; padding: 15px 20px; font: 500 .68rem/1 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--faint); border-bottom: 1px solid var(--line-2); background: var(--surface-2); }
td { padding: 16px 20px; border-bottom: 1px solid var(--line); color: #c3c8da; }
tr:last-child td { border-bottom: 0; }
td strong { color: #fff; }
.pill { display: inline-block; padding: 4px 10px; border-radius: 999px; font: 500 .68rem/1.2 var(--font-mono); letter-spacing: .06em; text-transform: uppercase; }
.pill.pass { color: var(--pass); background: rgba(62, 230, 168, .1); border: 1px solid rgba(62, 230, 168, .35); }
.pill.block { color: var(--block); background: rgba(255, 93, 115, .1); border: 1px solid rgba(255, 93, 115, .35); }
.pill.warn { color: var(--amber); background: rgba(255, 200, 87, .1); border: 1px solid rgba(255, 200, 87, .35); }

.gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin: 30px 0; }
.gallery figure { margin: 0; }
.gallery img { aspect-ratio: 4/3; object-fit: cover; object-position: top; cursor: zoom-in; transition: transform .3s, border-color .3s; }
.gallery img:hover { border-color: rgba(139, 123, 255, .5); transform: translateY(-3px); }

.next { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px; margin-top: 90px; padding-top: 34px; border-top: 1px solid var(--line); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

/* certifications */
.cert-grid { display: grid; gap: 22px; }
.cert { display: grid; grid-template-columns: 380px 1fr; gap: 36px; align-items: center; padding: 26px; border-radius: 22px; background: var(--surface); border: 1px solid var(--line); transition: border-color .3s, transform .3s; }
.cert:hover { border-color: rgba(139, 123, 255, .4); transform: translateY(-3px); }
.cert img { width: 100%; border-radius: 12px; border: 1px solid var(--line-2); cursor: zoom-in; background: #fff; }
.cert h3 { font-family: var(--font-display); font-size: 2.1rem; line-height: 1.05; letter-spacing: -.015em; margin: 14px 0 12px; }
.cert p { color: var(--muted); margin-bottom: 8px; }
.cert .cid { font: 500 .8rem var(--font-mono); color: #cfd2e6; padding: 10px 14px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 10px; display: inline-block; margin-top: 8px; word-break: break-all; }
.lightbox { position: fixed; inset: 0; z-index: 400; display: none; align-items: center; justify-content: center; padding: 30px; background: rgba(4, 5, 9, .92); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); cursor: zoom-out; }
.lightbox.open { display: flex; }
.lightbox img { max-width: 100%; max-height: 100%; border-radius: 12px; box-shadow: 0 30px 100px rgba(0, 0, 0, .8); }
.lightbox button { position: absolute; top: 20px; right: 24px; width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--line-2); background: rgba(255, 255, 255, .06); color: #fff; font-size: 1.5rem; cursor: pointer; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .about { grid-template-columns: 1fr; gap: 56px; }
  .portrait { max-width: 380px; }
  .featured { grid-template-columns: 1fr; }
  .featured-media { padding: 0 24px 34px; }
  .window { transform: none; }
  .contact { grid-template-columns: 1fr; gap: 48px; }
  .bento { grid-template-columns: repeat(2, 1fr); }
  .tile.wide { grid-column: span 2; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .cert { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: calc(100% + 10px); left: 0; right: 0; flex-direction: column; align-items: stretch; padding: 10px;
    background: rgba(10, 12, 19, .96); border: 1px solid var(--line-2); border-radius: 22px; display: none; gap: 2px;
  }
  .nav.open .nav-links { display: flex; }
  .nav-links a { padding: 14px 18px; font-size: 1rem; }
  .nav.open .nav-toggle span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  .nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav.open .nav-toggle span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }
  .nav-end .btn { display: none; }
  .kbd-hint { display: none; }
}
@media (max-width: 680px) {
  .container { width: min(var(--maxw), 100% - 36px); }
  section.block { padding: 84px 0; }
  .hero { padding-bottom: 250px; align-items: flex-start; }
  .eyebrow { letter-spacing: .12em; font-size: .66rem; }
  .hero h1 { max-width: none; }
  .hero-sim { left: 18px; right: 18px; bottom: 18px; justify-content: space-between; gap: 8px; font-size: .6rem; padding: 9px 12px; }
  .scroll-cue { display: none; }
  .bento, .cards { grid-template-columns: 1fr; }
  .tile.wide { grid-column: auto; }
  .featured-body { padding: 34px 26px 26px; }
  .metrics { grid-template-columns: repeat(2, auto); gap: 22px 28px; }
  .form-row { grid-template-columns: 1fr; }
  .details li { grid-template-columns: 1fr; gap: 6px; }
  .portrait-badge { right: 10px; }
  .gallery { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr 1fr; }
  .stat b { font-size: 2rem; }
  .steps li { padding: 20px 18px 20px 66px; }
  .steps li::before { left: 16px; }
  .narrow, .wrap-wide { width: min(1040px, 100% - 36px); }
  .cert { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  .js .reveal { opacity: 1; transform: none; }
}