/* Design system modelled on render.com: white canvas, near-black ink,
   hairline #e3e3e3 grids, 2-4px corners, purple primary, green status. */
:root {
  --bg: #ffffff;
  --bg-2: #fafafa;
  --ink: #0d0d0d;
  --text-2: #4d4d4d;
  --muted: #6b6b6b;
  --line: #e3e3e3;
  --line-2: #cfcfcf;
  --accent: #6c35f5;
  --accent-ink: #581ccb;
  --accent-soft: #efe9fe;
  --green: #0b7d55;
  --green-soft: rgba(11, 125, 85, 0.12);
  --nav-bg: rgba(255, 255, 255, 0.78);
  --strip-bg: rgba(255, 255, 255, 0.85);
  --dark-btn: #0d0d0d;
  --dark-btn-ink: #ffffff;
  --dark-btn-hover: #2a2a2a;
  --net-ink: 13, 13, 13;
  --net-accent: 108, 53, 245;
  --r: 4px;
  color-scheme: light;
  --sans: "Geist", ui-sans-serif, system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, monospace;
}

:root[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-2: #141414;
  --ink: #f2f2f2;
  --text-2: #b4b4b4;
  --muted: #8f8f8f;
  --line: #262626;
  --line-2: #3a3a3a;
  --accent: #7c4dff;
  --accent-ink: #a98bff;
  --accent-soft: rgba(124, 77, 255, 0.16);
  --green: #3ecf8e;
  --green-soft: rgba(62, 207, 142, 0.12);
  --nav-bg: rgba(10, 10, 10, 0.75);
  --strip-bg: rgba(10, 10, 10, 0.85);
  --dark-btn: #f2f2f2;
  --dark-btn-ink: #0a0a0a;
  --dark-btn-hover: #d4d4d4;
  --net-ink: 242, 242, 242;
  --net-accent: 150, 115, 255;
  color-scheme: dark;
}
body, .cell, .stats div, .nav, .strip { transition: background-color .3s, color .3s, border-color .3s; }

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body { background: var(--bg); color: var(--text-2); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
::selection { background: var(--accent-soft); color: var(--accent-ink); }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, b { color: var(--ink); font-weight: 500; }
b { font-weight: 600; }
.mono { font-family: var(--mono); font-size: 0.8rem; }
.muted { color: var(--muted); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* Background network */
#net { position: fixed; inset: 0; z-index: -1; pointer-events: none; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 20; background: var(--nav-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.nav.scrolled { border-bottom-color: var(--line); }
.theme-btn { display: grid; place-items: center; width: 34px; height: 34px; border: 1px solid var(--line); border-radius: 2px; background: transparent; color: var(--ink); cursor: pointer; transition: border-color .2s, background .2s; }
.theme-btn:hover { border-color: var(--line-2); background: var(--bg-2); }
.theme-btn .i-sun, [data-theme="dark"] .theme-btn .i-moon { display: none; }
[data-theme="dark"] .theme-btn .i-sun { display: block; }
.nav-in { max-width: 1200px; margin: 0 auto; padding: 14px 32px; display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); letter-spacing: -0.01em; }
.mark { width: 14px; height: 14px; background: var(--ink); clip-path: polygon(0 0, 100% 0, 100% 100%, 50% 100%, 50% 50%, 0 50%); }
.nav nav { display: flex; gap: 28px; align-items: center; font-size: 0.9rem; }
.nav nav a:not(.btn) { color: var(--text-2); transition: color .2s; }
.nav nav a:not(.btn):hover { color: var(--ink); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 20px; border-radius: 2px; background: var(--accent); color: #fff; border: 1px solid var(--accent); font: 500 0.92rem var(--sans); cursor: pointer; transition: background .2s, transform .2s; }
.btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); transform: translateY(-1px); }
.btn-dark { background: var(--dark-btn); color: var(--dark-btn-ink); border-color: var(--dark-btn); }
.btn-dark:hover { background: var(--dark-btn-hover); border-color: var(--dark-btn-hover); }
.btn-line { background: var(--bg); color: var(--ink); border-color: var(--line-2); }
.btn-line:hover { background: var(--bg-2); border-color: var(--ink); }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }

/* Layout */
main { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
section { padding-top: 112px; }
.label { font: 500 0.72rem var(--mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.sec-head { margin-bottom: 36px; }
h2 { font-size: clamp(2rem, 4vw, 2.9rem); line-height: 1.08; letter-spacing: -0.035em; }
h3 { font-size: 1.08rem; letter-spacing: -0.015em; }
.sec-lede { margin-top: 12px; font-size: 1.05rem; }

/* Hero */
.hero { display: flex; justify-content: center; text-align: center; padding: 120px 0 104px; }
.hero-copy { max-width: 820px; display: flex; flex-direction: column; align-items: center; }
.status { display: inline-flex; align-items: center; gap: 8px; font: 500 0.78rem var(--mono); color: var(--green); background: var(--green-soft); padding: 4px 10px; border-radius: 2px; }
.live { width: 7px; height: 7px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(11,125,85,.5); } 70% { box-shadow: 0 0 0 8px rgba(11,125,85,0); } 100% { box-shadow: 0 0 0 0 rgba(11,125,85,0); } }
.who { margin: 22px 0 12px; font: 500 0.85rem var(--mono); color: var(--muted); }
h1 { font-size: clamp(2.5rem, 6vw, 4.6rem); line-height: 1.02; letter-spacing: -0.045em; }
.lede { margin-top: 24px; font-size: 1.12rem; max-width: 620px; }
.cta { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin-top: 36px; }

.aurora { position: absolute; inset: -20%; background:
  radial-gradient(40% 50% at 25% 30%, rgba(108,53,245,.45), transparent 70%),
  radial-gradient(35% 45% at 80% 70%, rgba(155,120,255,.4), transparent 70%),
  radial-gradient(30% 40% at 60% 20%, rgba(255,170,220,.35), transparent 70%);
  filter: blur(30px); animation: aurora 18s ease-in-out infinite alternate; }
@keyframes aurora { to { transform: translate(6%, -4%) rotate(8deg) scale(1.08); } }

/* Load animation */
.load { opacity: 0; transform: translateY(16px); animation: up .8s cubic-bezier(.2,.7,.2,1) forwards; animation-delay: calc(var(--d) * 100ms + 80ms); }
@keyframes up { to { opacity: 1; transform: none; } }

/* Stack strip */
.strip { display: grid; grid-template-columns: 180px 1fr; align-items: center; gap: 24px; border-block: 1px solid var(--line); padding: 18px 0; background: var(--strip-bg); }
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.track { display: flex; gap: 44px; width: max-content; animation: scroll 45s linear infinite; }
.track span { font: 500 0.95rem var(--sans); color: var(--ink); opacity: .55; white-space: nowrap; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* Hairline grids */
/* grid lines come from cell outlines, so a cell still fading in leaves a gap, not a grey slab */
.cells { display: grid; gap: 1px; border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; }
.c2 { grid-template-columns: repeat(2, 1fr); }
.c3 { grid-template-columns: repeat(3, 1fr); }
.c4 { grid-template-columns: repeat(4, 1fr); }
.cell { background: var(--bg); padding: 28px; outline: 1px solid var(--line); transition: background .25s; }

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--r); overflow: hidden; margin-top: 48px; }
.stats div { background: var(--bg); padding: 26px 24px; }
.stats dt { font-size: 2.4rem; font-weight: 500; letter-spacing: -0.04em; color: var(--ink); line-height: 1.1; }
.stats dd { font-size: 0.88rem; color: var(--muted); margin-top: 6px; }

.stack-grid h3, #stack h3 { margin-bottom: 14px; }
.chips, .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.chips li, .tags li { font: 0.76rem var(--mono); color: var(--text-2); padding: 3px 9px; border: 1px solid var(--line); border-radius: 2px; background: var(--bg-2); transition: border-color .2s, color .2s, background .2s; }
.chips li:hover { border-color: var(--accent); color: var(--accent-ink); background: var(--accent-soft); }

/* Projects */
.proj { position: relative; display: flex; flex-direction: column; gap: 12px; overflow: hidden; }
.proj::before { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity .3s; background: radial-gradient(320px circle at var(--mx, 50%) var(--my, 50%), rgba(108,53,245,.07), transparent 65%); }
.proj:hover { background: var(--bg-2); }
.proj:hover::before { opacity: 1; }
.proj h3 { transition: color .2s; }
.proj:hover h3 { color: var(--accent-ink); }
.proj p { font-size: 0.92rem; }
.proj .kicker { display: flex; align-items: center; gap: 8px; font: 500 0.72rem var(--mono); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); }
.tag-acc { color: var(--accent-ink); background: var(--accent-soft); padding: 2px 7px; border-radius: 2px; }
.proj.feature h3 { font-size: 1.22rem; }
.proj .bench { font: 0.76rem var(--mono); color: var(--ink); padding-left: 10px; border-left: 2px solid var(--accent); }
.tags { margin-top: auto; padding-top: 6px; }
.tags li { font-size: 0.7rem; }

.sub { margin: 56px 0 14px; }
.also .cell { padding: 18px 22px; font-size: 0.86rem; color: var(--muted); }
.also .cell:hover { background: var(--bg-2); }
.also b { display: block; margin-bottom: 2px; font-size: 0.94rem; font-weight: 500; }

/* Experience */
.c-exp { grid-template-columns: 0.9fr 1.1fr; }
.c-exp h3 { font-size: 1.35rem; margin-bottom: 6px; }
.ladder { margin-top: 26px; border-left: 1px solid var(--line-2); padding-left: 20px; display: grid; gap: 14px; }
.ladder li { position: relative; display: grid; gap: 0; font-size: 0.95rem; color: var(--ink); }
.ladder li::before { content: ""; position: absolute; left: -25px; top: 7px; width: 9px; height: 9px; background: var(--bg); border: 1px solid var(--line-2); }
.ladder li:first-child::before { background: var(--accent); border-color: var(--accent); }
.ladder .mono { color: var(--muted); }
.wins { display: grid; gap: 14px; font-size: 0.95rem; }
.wins li { position: relative; padding-left: 22px; }
.wins li::before { content: ""; position: absolute; left: 0; top: 10px; width: 10px; height: 1px; background: var(--accent); }
.duo { margin-top: 24px; }
.duo .label { margin-bottom: 14px; }
.plain { display: grid; gap: 8px; font-size: 0.93rem; }

/* Contact */
.contact { position: relative; overflow: hidden; border: 1px solid var(--line); border-radius: var(--r); padding: 64px 48px 48px; text-align: center; background: var(--bg-2); }
.aurora.soft { opacity: .35; }
.contact > *:not(.aurora) { position: relative; }
.contact-lead { max-width: 520px; margin: 14px auto 0; font-size: 1.08rem; }
.email-row { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 30px 0 40px; }
.socials { text-align: left; }
.socials .cell { display: flex; flex-direction: column; gap: 2px; padding: 18px 20px; }
.socials .cell:hover { background: var(--bg-2); }
.socials .cell:hover span:first-child { color: var(--accent-ink); }
.socials span:first-child { color: var(--ink); font-weight: 500; transition: color .2s; }
.socials .mono { color: var(--muted); }

footer { max-width: 1200px; margin: 0 auto; padding: 56px 32px 40px; text-align: center; font-size: 0.85rem; color: var(--muted); }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }

/* Responsive */
@media (max-width: 960px) {
  .c3, .c4, .stats { grid-template-columns: 1fr 1fr; }
  .c-exp { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  main { padding: 0 16px; }
  .nav-in { padding: 12px 16px; }
  .hide-sm { display: none; }
  section { padding-top: 80px; }
  .c2, .c3, .c4, .stats { grid-template-columns: 1fr; }
  .strip { grid-template-columns: 1fr; gap: 10px; }
  .hero { padding: 72px 0 72px; }
  .cell { padding: 22px 18px; }
  .contact { padding: 44px 18px 18px; }
  .stats dt { font-size: 2rem; }
}

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