/* Layout: the page is a code editor window — titlebar, file explorer, tabs, numbered lines, status bar —
   floating over a fixed 3D scene. One deliberate dark theme (an editor at night), brand colors from the logotyp repo. */
:root {
  --bg: #070B18;
  --bg-2: #0B1124;
  --panel: rgba(10, 16, 34, 0.78);
  --panel-solid: #0E1630;
  --line: #1C2647;
  --line-2: #2A3760;
  --text: #E4EAF6;
  --muted: #8792B0;
  --dim: #5B6789;
  --blue: #1BA3E8;
  --blue-soft: #7CCBF5;
  --violet: #6D4AFF;
  --violet-text: #A390FF;
  --red: #F0364F;
  --sel: rgba(27, 163, 232, 0.24);

  --f-mono: "JetBrains Mono", Consolas, "Courier New", monospace;
  --f-display: "Sora", "Segoe UI", system-ui, sans-serif;
  --f-body: "Manrope", "Segoe UI", system-ui, sans-serif;

  --title-h: 52px;
  --status-h: 28px;
  --tabs-h: 42px;
  --gutter: 64px;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--title-h) + var(--tabs-h) + 12px); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--f-body);
  padding-top: calc(var(--title-h) + env(safe-area-inset-top, 0px));
  padding-bottom: calc(var(--status-h) + env(safe-area-inset-bottom, 0px));
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: var(--blue-soft); }
h1, h2, h3 { margin: 0; text-wrap: balance; }
p { margin: 0; }
.red { color: var(--red); }
.mono { font-family: var(--f-mono); font-weight: 700; }
.muted { color: var(--muted); }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 4px; }

.skip { position: fixed; left: 12px; top: -60px; z-index: 100; background: var(--blue); color: var(--bg); padding: 10px 14px; border-radius: 8px; font-weight: 700; }
.skip:focus { top: 12px; }

/* 3D scene + fallback backdrop */
#scene { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: 0; pointer-events: none; }
.backdrop {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(60% 50% at 78% 22%, rgba(109, 74, 255, 0.16), transparent 70%),
    radial-gradient(50% 45% at 15% 85%, rgba(27, 163, 232, 0.12), transparent 70%),
    linear-gradient(transparent 0 calc(100% - 1px), rgba(42, 55, 96, 0.35) 0) 0 0 / 100% 32px;
  mask-image: linear-gradient(#000, rgba(0, 0, 0, 0.35));
}
html.webgl .backdrop { background:
    radial-gradient(60% 50% at 78% 22%, rgba(109, 74, 255, 0.10), transparent 70%),
    radial-gradient(50% 45% at 15% 85%, rgba(27, 163, 232, 0.08), transparent 70%); }

/* titlebar */
.titlebar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 30;
  height: calc(var(--title-h) + env(safe-area-inset-top, 0px));
  padding: env(safe-area-inset-top, 0px) max(16px, env(safe-area-inset-right, 0px)) 0 max(16px, env(safe-area-inset-left, 0px));
  display: flex; align-items: center; gap: 16px;
  background: rgba(7, 11, 24, 0.82);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font: 700 1.05rem var(--f-mono); }
.path { flex: 1; min-width: 0; text-align: center; font: 500 0.82rem var(--f-mono); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lang { display: flex; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 8px; font: 700 0.72rem var(--f-mono); }
.lang a { padding: 5px 8px; border-radius: 5px; color: var(--dim); text-decoration: none; }
.lang a:hover { color: var(--text); }
.lang a[aria-current="true"] { background: rgba(27, 163, 232, 0.14); color: var(--text); }
.blink, .cursor-blink { animation: blink 1.1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 700 0.95rem var(--f-mono); text-decoration: none; cursor: pointer;
  padding: 13px 20px; border-radius: 10px; border: 1px solid transparent;
  transition: transform 0.15s ease, background-color 0.15s ease, border-color 0.15s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}
.btn, .btn * { text-shadow: none; }
.btn-sm { padding: 7px 12px; font-size: 0.8rem; border-radius: 8px; }
.btn.primary { background: var(--text); color: var(--bg); }
.btn.primary::after { content: "_"; color: var(--red); margin-left: -4px; }
.btn.primary:hover { transform: translateY(-1px); box-shadow: 0 8px 30px rgba(27, 163, 232, 0.35); background: #fff; }
.btn.ghost { background: rgba(27, 163, 232, 0.06); color: var(--text); border-color: var(--line-2); }
.btn.ghost:hover { border-color: var(--blue); background: rgba(27, 163, 232, 0.12); }

/* workspace */
.workspace {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 236px minmax(0, 1fr);
  min-height: calc(100vh - var(--title-h) - var(--status-h));
}
.explorer {
  position: sticky; top: var(--title-h); align-self: start;
  height: calc(100vh - var(--title-h) - var(--status-h));
  padding: 18px 12px 18px max(12px, env(safe-area-inset-left, 0px));
  display: flex; flex-direction: column; gap: 8px;
  background: rgba(7, 11, 24, 0.66);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-right: 1px solid var(--line);
  font: 500 0.84rem var(--f-mono);
}
.explorer-title { color: var(--dim); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.7rem; padding-left: 8px; }
.explorer-root { color: var(--muted); padding-left: 8px; }
.explorer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.explorer a { display: flex; align-items: center; gap: 10px; padding: 6px 8px 6px 22px; border-radius: 6px; color: var(--muted); text-decoration: none; }
.explorer a:hover { background: rgba(255, 255, 255, 0.04); color: var(--text); }
.explorer a[aria-current="true"] { background: rgba(27, 163, 232, 0.12); color: var(--text); }
.ico { font-style: normal; font-size: 0.66rem; font-weight: 700; width: 20px; text-align: center; }
.ico.md { color: var(--blue-soft); } .ico.json { color: #F2C46D; } .ico.ts { color: var(--blue); } .ico.yml { color: var(--violet-text); } .ico.sh { color: #7EE0A8; }
.explorer-foot { margin-top: auto; color: var(--dim); font-size: 0.72rem; padding-left: 8px; display: flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: #7EE0A8; box-shadow: 0 0 8px #7EE0A8; }

.editor { min-width: 0; }
.tabs {
  position: sticky; top: var(--title-h); z-index: 20;
  height: var(--tabs-h);
  display: flex; overflow-x: auto; scrollbar-width: none;
  background: rgba(7, 11, 24, 0.86);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.tabs::-webkit-scrollbar { display: none; }
.tabs a {
  flex: none; display: flex; align-items: center; padding: 0 18px;
  font: 500 0.8rem var(--f-mono); color: var(--dim); text-decoration: none;
  border-right: 1px solid var(--line); border-top: 2px solid transparent;
}
.tabs a:hover { color: var(--text); }
.tabs a[aria-current="true"] { color: var(--text); background: rgba(14, 22, 48, 0.9); border-top-color: var(--blue); }

/* sections as files, with a numbered gutter */
main { counter-reset: ln; padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.file {
  position: relative;
  padding: 96px 0 72px var(--gutter);
  max-width: 1120px;
}
.file::before { /* gutter rule */
  content: ""; position: absolute; left: calc(var(--gutter) - 18px); top: 0; bottom: 0; width: 1px; background: var(--line);
}
.lines > *, .lines-pre { counter-increment: ln; position: relative; }
.lines > *::before, .lines-pre::before {
  content: counter(ln);
  position: absolute; left: calc(-1 * var(--gutter)); width: calc(var(--gutter) - 30px);
  text-align: right; font: 500 0.72rem/2.2 var(--f-mono); color: var(--dim); font-variant-numeric: tabular-nums;
  top: 0.15em;
}
.lines > .rv-active::before { color: var(--text); }

.file-head, .hero-copy, .services { text-shadow: 0 0 18px var(--bg), 0 0 4px var(--bg); }
.file-head { display: grid; gap: 14px; margin-bottom: 40px; max-width: 70ch; }
.comment { font: 500 0.9rem var(--f-mono); color: var(--dim); }
.comment.close { margin-top: 24px; }
.md { color: var(--violet-text); }
h2 { font: 700 clamp(1.8rem, 3.6vw, 2.8rem)/1.12 var(--f-display); letter-spacing: -0.02em; }
h3 { font: 600 1.2rem/1.25 var(--f-display); }
.intro { color: var(--muted); font-size: 1.08rem; max-width: 62ch; }

/* syntax */
.k { color: var(--violet-text); }
.s { color: var(--blue-soft); }
.c { color: var(--dim); font-style: italic; }
.n { color: var(--blue-soft); }
.p { color: #C6D3F2; }
.f { color: var(--text); font-weight: 700; }
.v { color: var(--text); }
.o { color: var(--muted); }
.prompt { color: var(--blue); font-weight: 700; }

/* hero */
.hero {
  min-height: calc(100svh - var(--title-h) - var(--status-h) - var(--tabs-h));
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 48px; padding-bottom: 96px;
}
.hero-copy { display: grid; gap: 22px; max-width: 640px; }
.hero h1 { font: 700 clamp(3.2rem, 9vw, 7rem)/0.95 var(--f-mono); letter-spacing: -0.04em; }
.hero h1 .md { font-size: 0.42em; vertical-align: 0.9em; letter-spacing: 0; }
.hero .lead { font: 700 clamp(1.4rem, 2.6vw, 2rem)/1.2 var(--f-display); color: var(--text); }
.hero-copy > p:not(.lead) { color: var(--muted); font-size: 1.1rem; max-width: 56ch; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 6px; }
.code-inline { margin: 6px 0 0; font: 500 0.86rem/1.6 var(--f-mono); white-space: pre-wrap; color: var(--text); max-width: 60ch; }
.scroll-hint { position: absolute; left: var(--gutter); bottom: 28px; display: flex; align-items: center; gap: 10px; color: var(--dim); text-decoration: none; font: 500 0.75rem var(--f-mono); }
.scroll-hint i { width: 1px; height: 36px; background: linear-gradient(var(--blue), transparent); animation: drip 1.8s ease-in-out infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* why */
.why-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.why { padding: 24px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); display: grid; gap: 10px; align-content: start; }
.why-k { font: 500 0.74rem var(--f-mono); color: var(--blue); letter-spacing: 0.04em; }
.why p { color: var(--muted); font-size: 0.98rem; }

/* industries */
.industries { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; perspective: 1200px; }
.industry {
  --rx: 0deg; --ry: 0deg; --mx: 50%; --my: 0%;
  position: relative; border-radius: 16px; overflow: hidden;
  background: linear-gradient(180deg, rgba(14, 22, 48, 0.92), rgba(9, 14, 30, 0.92));
  border: 1px solid var(--line-2);
  transform: rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}
.industry::after { /* glare */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0; transition: opacity 0.25s;
  background: radial-gradient(420px circle at var(--mx) var(--my), rgba(255, 255, 255, 0.07), transparent 60%);
}
.industry:hover { border-color: var(--hue); box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45), 0 0 0 1px var(--hue); }
.industry:hover::after { opacity: 1; }
.card-bar { display: flex; justify-content: space-between; align-items: center; padding: 10px 16px; border-bottom: 1px solid var(--line); font: 500 0.75rem var(--f-mono); color: var(--dim); background: rgba(7, 11, 24, 0.6); }
.card-dots { width: 34px; height: 8px; background: radial-gradient(circle, var(--line-2) 3px, transparent 3.5px) 0 0 / 12px 8px repeat-x; }
.card-body { padding: 22px 24px 26px; display: grid; gap: 12px; transform: translateZ(30px); }
.json-key { font: 500 0.8rem var(--f-mono); color: var(--hue); }
.industry h3 { font-size: 1.6rem; }
.ind-title { font-weight: 700; color: var(--text); }
.industry .card-body > p:not(.json-key):not(.ind-title) { color: var(--muted); font-size: 0.98rem; }
.metrics { list-style: none; margin: 6px 0 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.metrics li { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; display: grid; gap: 2px; background: rgba(7, 11, 24, 0.5); }
.metrics b { font: 700 1.15rem var(--f-mono); color: var(--text); font-variant-numeric: tabular-nums; }
.metrics span { font-size: 0.8rem; color: var(--muted); }
.chips { list-style: none; margin: 4px 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { font: 500 0.72rem var(--f-mono); padding: 4px 9px; border-radius: 6px; color: var(--blue-soft); background: rgba(27, 163, 232, 0.08); border: 1px solid rgba(27, 163, 232, 0.18); }

/* side project */
.lab { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 20px; align-items: start; perspective: 1200px; }
.lab-notes { display: grid; gap: 16px; }
.lab-link { margin-top: 6px; }

/* services */
.services { list-style: none; margin: 0; padding: 0; display: grid; gap: 30px; max-width: 760px; }
.services li { display: grid; gap: 6px; padding-left: 28px; }
.services .fn { font: 500 0.85rem var(--f-mono); }
.services p { color: var(--muted); max-width: 62ch; }

/* stack */
.yaml {
  margin: 0; padding: 26px 28px; border-radius: 14px; border: 1px solid var(--line);
  background: var(--panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  font: 500 0.92rem/1.95 var(--f-mono); overflow-x: auto; max-width: 900px;
}

/* process */
.terminal {
  list-style: none; margin: 0; padding: 26px 28px; display: grid; gap: 18px; max-width: 900px;
  border-radius: 14px; border: 1px solid var(--line); background: rgba(5, 8, 18, 0.88);
  font: 500 0.92rem/1.6 var(--f-mono);
}
.terminal.lines > *::before { left: calc(-1 * var(--gutter) - 29px); }
.terminal .out { display: block; color: #7EE0A8; padding-left: 18px; }
.terminal .c { font-style: normal; }
.terminal .step { display: block; padding-left: 18px; margin-top: 4px; font: 400 0.92rem/1.55 var(--f-body); color: var(--muted); }

/* contact */
.contact { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 20px; align-items: start; }
.contact-list { list-style: none; margin: 0; padding: 8px 0; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.contact-list li { display: grid; grid-template-columns: 84px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 14px 20px; }
.contact-list li + li { border-top: 1px solid var(--line); }
.contact-list .label { font: 500 0.74rem var(--f-mono); color: var(--dim); }
.contact-list .value { font: 700 1rem var(--f-mono); overflow-wrap: anywhere; user-select: all; }
.contact-list .actions { display: flex; gap: 6px; }
.compose { display: grid; gap: 10px; padding: 0 20px 20px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); }
.compose-bar { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin: 0 -20px 6px; padding: 10px 20px; border-bottom: 1px solid var(--line); font: 500 0.74rem var(--f-mono); color: var(--dim); }
.compose label { font: 500 0.78rem var(--f-mono); color: var(--muted); }
.compose input, .compose textarea {
  width: 100%; font: 400 1rem var(--f-body); color: var(--text); background: rgba(5, 8, 18, 0.7);
  border: 1px solid var(--line-2); border-radius: 10px; padding: 12px 14px; resize: vertical;
}
.compose input:focus, .compose textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(27, 163, 232, 0.2); }
.compose ::placeholder { color: var(--dim); }
.compose .btn { justify-self: start; margin-top: 6px; }
.form-error { color: #FF9AA8; font-size: 0.9rem; }

.site-footer { padding: 0 0 48px var(--gutter); display: grid; gap: 18px; color: var(--dim); font-size: 0.85rem; }
.legal { margin: 0; display: flex; flex-wrap: wrap; gap: 6px 26px; font: 500 0.78rem/1.5 var(--f-mono); }
.legal div { display: flex; gap: 8px; min-width: 0; }
.legal dt { color: var(--dim); }
.legal dt::after { content: ":"; }
.legal dd { margin: 0; color: var(--muted); font-variant-numeric: tabular-nums; }
.brand-bar { height: 4px; border-radius: 2px; max-width: 420px; background: linear-gradient(90deg, var(--blue) 0 60%, var(--violet) 60% 90%, var(--red) 90% 100%); }

/* status bar */
.statusbar {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 30;
  height: calc(var(--status-h) + env(safe-area-inset-bottom, 0px));
  padding: 0 max(12px, env(safe-area-inset-right, 0px)) env(safe-area-inset-bottom, 0px) 0;
  display: flex; align-items: center; gap: 14px;
  background: #0A1022; border-top: 1px solid var(--line);
  font: 500 0.72rem var(--f-mono); color: var(--muted); white-space: nowrap;
}
.sb-branch { background: var(--blue); color: var(--bg); font-weight: 700; height: 100%; display: flex; align-items: center; padding: 0 12px 0 max(12px, env(safe-area-inset-left, 0px)); }
.sb-ok { color: #7EE0A8; }
.sb-msg { color: var(--blue-soft); opacity: 0; transition: opacity 0.3s; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.sb-msg.on { opacity: 1; }
.sb-right { margin-left: auto; display: flex; gap: 16px; }

/* ---------- reveal engine (typed / pasted text) ---------- */
html.js [data-reveal]:not(.rv-ready) { opacity: 0; }
html.rv-fallback [data-reveal] { opacity: 1 !important; }
.rv-u { color: transparent !important; }
.rv-u * { color: transparent !important; }
.rv-wait { opacity: 0; }
.rv-cursor {
  display: inline-block; width: 0.55em; height: 1.05em; margin-left: 1px; vertical-align: -0.15em;
  background: var(--red); box-shadow: 0 0 12px rgba(240, 54, 79, 0.6);
}
.rv-paste { animation: paste-in 0.5s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes paste-in { from { opacity: 0; transform: translateY(8px) scale(0.995); } to { opacity: 1; transform: none; } }
.rv-sel {
  position: absolute; inset: -6px -10px; border-radius: 6px; pointer-events: none; z-index: 2;
  background: var(--sel); box-shadow: inset 0 0 0 1px rgba(27, 163, 232, 0.35);
  animation: sel-out 1.1s ease-out 0.15s forwards;
}
@keyframes sel-out { to { opacity: 0; } }

@media (prefers-reduced-motion: reduce) {
  .blink, .cursor-blink, .scroll-hint i { animation: none; }
  .rv-paste, .rv-sel { animation: none; }
  .rv-sel { display: none; }
  .industry { transition: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .why-grid { grid-template-columns: 1fr; }
  .contact { grid-template-columns: 1fr; }
}
@media (max-width: 900px) {
  .workspace { grid-template-columns: minmax(0, 1fr); }
  .explorer { display: none; }
  .industries, .lab { grid-template-columns: 1fr; }
  :root { --gutter: 48px; }
}
@media (max-width: 640px) {
  :root { --gutter: 16px; --title-h: 48px; }
  body { font-size: 16px; }
  .path { display: none; }
  .titlebar { justify-content: space-between; }
  .file { padding-top: 64px; padding-bottom: 48px; padding-left: max(16px, env(safe-area-inset-left, 0px)); }
  .file::before, .lines > *::before, .lines-pre::before { display: none; }
  .hero { padding-top: 24px; padding-bottom: 72px; justify-content: flex-end; }
  .scroll-hint { left: 16px; }
  .yaml, .terminal { padding: 18px; font-size: 0.82rem; }
  .services li { padding-left: 0; }
  .contact-list li { grid-template-columns: minmax(0, 1fr); gap: 8px; padding: 14px 16px; }
  .contact-list .value { font-size: 0.95rem; overflow-wrap: normal; word-break: normal; }
  .card-body { padding: 18px; }
  .metrics { grid-template-columns: 1fr; }
  .sb-hide-sm { display: none; }
  .site-footer { padding-left: max(16px, env(safe-area-inset-left, 0px)); }
}