/* ============ Tokens ============ */
:root {
  --bg: #07080c;
  --bg-2: #0d0f16;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-2: rgba(255, 255, 255, 0.16);
  --text: #eef0f6;
  --muted: #9aa1b4;
  --dim: #646b80;
  --accent: #f5a524;          /* single warm signal colour, used sparingly */
  --accent-soft: rgba(245, 165, 36, .12);
  --accent-2: var(--accent);
  --accent-3: #4ade80;         /* status only (available dot, result label) */
  --btn: #f2f2f0;
  --btn-text: #0b0b0c;
  --radius: 18px;
  --radius-sm: 10px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  --display: "Space Grotesk", system-ui, sans-serif;
  --sans: "Inter", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
b, strong { font-weight: 600; color: var(--text); }
code { font-family: var(--mono); font-size: .86em; padding: .1em .38em; border-radius: 6px; background: var(--surface-2); border: 1px solid var(--line); }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -0.02em; line-height: 1.08; margin: 0; }
::selection { background: rgba(245, 165, 36, .35); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.container { width: min(1160px, 100% - 32px); margin-inline: auto; }
.mono { font-family: var(--mono); }
.grad { color: var(--accent); }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--text); color: var(--bg); padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 16px; }

/* ============ Background ============ */
.bg-grid {
  position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
}
.bg-glow {
  position: fixed; z-index: -1; pointer-events: none;
  width: 900px; height: 900px; left: 50%; top: -520px; transform: translateX(-50%);
  background: radial-gradient(circle, rgba(255,255,255,.07), rgba(245,165,36,.04) 40%, transparent 70%);
  filter: blur(40px);
  animation: drift 18s var(--ease) infinite alternate;
}
@keyframes drift { to { transform: translateX(-42%) translateY(60px) scale(1.1); } }

/* ============ Buttons ============ */
.btn {
  display: inline-flex; align-items: center; gap: 10px; justify-content: center;
  font: 600 15px/1 var(--sans); padding: 14px 22px; border-radius: 999px;
  border: 1px solid transparent; cursor: pointer; color: var(--text);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--btn); color: var(--btn-text); box-shadow: inset 0 -1px 0 rgba(0,0,0,.18), 0 1px 2px rgba(0,0,0,.4); }
.btn-primary:hover { background: #fff; }
.btn-primary:active { transform: translateY(0) scale(.98); }
.btn-ghost { background: var(--surface); border-color: var(--line-2); }
.btn-ghost:hover { background: var(--surface-2); border-color: rgba(255,255,255,.3); }
.btn-sm { padding: 10px 16px; font-size: 14px; }
.btn-lg { padding: 18px 26px; font-size: 16px; }

/* ============ Nav ============ */
.nav { position: sticky; top: 0; z-index: 50; transition: background .3s, border-color .3s, backdrop-filter .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(7,8,12,.72); backdrop-filter: blur(14px) saturate(1.4); -webkit-backdrop-filter: blur(14px) saturate(1.4); border-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--display); font-weight: 600; }
.brand { letter-spacing: -0.01em; }
.brand-mark {
  position: relative; display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid var(--line-2); background: linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.01));
  color: var(--text); font: 700 15px/1 var(--display); letter-spacing: -0.06em;
  transition: border-color .25s var(--ease);
}
.brand-mark::after { content: ""; position: absolute; right: 6px; bottom: 6px; width: 4px; height: 4px; border-radius: 1px; background: var(--accent); }
.brand:hover .brand-mark { border-color: rgba(245,165,36,.55); }
.nav-links { display: flex; gap: 4px; padding: 5px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface); }
.nav-links a { padding: 7px 14px; border-radius: 999px; font-size: 14px; color: var(--muted); transition: color .2s, background .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--surface-2); }

/* ============ Hero ============ */
.hero { display: grid; grid-template-columns: 1.25fr .9fr; gap: 56px; align-items: center; padding: 72px 0 56px; }
.eyebrow { display: inline-flex; align-items: center; gap: 10px; font: 500 13px/1 var(--mono); color: var(--muted); padding: 8px 14px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); margin: 0 0 28px; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); box-shadow: 0 0 0 0 rgba(163,255,107,.6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(163,255,107,0); } 100% { box-shadow: 0 0 0 0 rgba(163,255,107,0); } }
.hero-title { font-size: clamp(40px, 6.4vw, 76px); font-weight: 700; }
.hero-title .grad { display: block; }
.hero-sub { font-size: clamp(16px, 1.6vw, 19px); color: var(--muted); max-width: 580px; margin: 26px 0 34px; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.socials { display: flex; gap: 22px; margin-top: 34px; font: 500 14px var(--mono); }
.socials a { color: var(--dim); position: relative; transition: color .2s; }
.socials a::after { content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px; background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease); }
.socials a:hover { color: var(--text); }
.socials a:hover::after { transform: scaleX(1); }
.socials.center { justify-content: center; }

.hero-visual { position: relative; }
.portrait {
  margin: 0; position: relative; border-radius: 28px; overflow: hidden; aspect-ratio: 4 / 5;
  border: 1px solid var(--line-2); background: var(--bg-2);
  transform-style: preserve-3d; transition: transform .4s var(--ease);
  box-shadow: 0 40px 80px -40px rgba(0,0,0,.9);
}
.portrait::before { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(180deg, transparent 55%, rgba(7,8,12,.75)); }
.portrait img { width: 100%; height: 100%; object-fit: cover; object-position: center 20%; }
.code-card {
  position: absolute; left: -48px; bottom: 36px; z-index: 2; width: min(300px, 80%);
  border-radius: 14px; border: 1px solid var(--line-2);
  background: rgba(13,15,22,.82); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 20px 50px -20px #000; animation: float 6s ease-in-out infinite;
}
.code-card pre { margin: 0; padding: 14px 16px 16px; font: 12.5px/1.6 var(--mono); color: #c9cde0; overflow: hidden; }
.code-card code { background: none; border: 0; padding: 0; font-size: inherit; }
.code-dots { display: flex; gap: 6px; align-items: center; padding: 10px 14px; border-bottom: 1px solid var(--line); }
.code-dots i { width: 9px; height: 9px; border-radius: 50%; background: #ff5f57; }
.code-dots i:nth-child(2) { background: #febc2e; }
.code-dots i:nth-child(3) { background: #28c840; }
.code-dots span { margin-left: 8px; font: 11px var(--mono); color: var(--dim); }
.k { color: #e5a957; } .f { color: #e8e8e6; } .s { color: #9fbf8f; } .c { color: var(--dim); }
@keyframes float { 50% { transform: translateY(-10px); } }

/* ============ Stats ============ */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; }
.stats li { padding: 26px 24px; border-right: 1px solid var(--line); }
.stats li:last-child { border-right: 0; }
.stats strong { display: block; font: 700 clamp(28px, 3.4vw, 40px)/1 var(--display); letter-spacing: -0.03em; color: var(--text); font-variant-numeric: tabular-nums; }
.stats span { display: block; margin-top: 10px; font-size: 14px; color: var(--muted); line-height: 1.4; }

/* ============ Marquee ============ */
.marquee { margin: 72px 0 0; padding: 22px 0; border-block: 1px solid var(--line); overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 48px; width: max-content; animation: marquee 40s linear infinite; }
.marquee-track span { font: 500 15px var(--mono); color: var(--dim); white-space: nowrap; }
.marquee-track span::before { content: "◆"; margin-right: 48px; color: rgba(245,165,36,.45); font-size: 9px; vertical-align: middle; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============ Sections ============ */
.section { padding: 120px 0 0; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.kicker { font: 500 13px var(--mono); color: var(--accent-2); margin: 0 0 16px; letter-spacing: .02em; }
.section-head h2, .cta h2 { font-size: clamp(32px, 4.6vw, 54px); font-weight: 700; }
.section-sub { color: var(--muted); font-size: 17px; margin: 18px 0 0; }

/* Spotlight cards */
.spot { position: relative; isolation: isolate; }
.spot::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; opacity: 0; transition: opacity .3s;
  background: radial-gradient(500px circle at var(--mx, 50%) var(--my, 50%), rgba(255,255,255,.05), transparent 45%);
}
.spot:hover::before { opacity: 1; }

/* ============ Case studies ============ */
.case {
  border: 1px solid var(--line); border-radius: 24px; background: var(--surface);
  padding: clamp(24px, 4vw, 48px); margin-bottom: 22px;
  transition: border-color .3s, transform .4s var(--ease);
}
.case:hover { border-color: var(--line-2); }
.case-meta { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.case-num { font: 500 13px var(--mono); color: var(--dim); }
.badge { font: 500 12px var(--mono); padding: 6px 11px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); }
.badge-accent { border-color: rgba(245,165,36,.4); color: var(--accent); background: var(--accent-soft); }
.case-title { font-size: clamp(30px, 4vw, 46px); font-weight: 700; }
.case-lede { color: var(--muted); font-size: 18px; margin: 10px 0 30px; max-width: 640px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 0 0 28px; }
.case-grid > div { padding: 22px; border-radius: 14px; background: rgba(0,0,0,.25); border: 1px solid var(--line); }
.case-grid dt { font: 500 12px var(--mono); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 10px; color: var(--accent-2); }
.case-grid dt { color: var(--muted); }
.case-grid > div:nth-child(2) dt { color: var(--accent); }
.case-grid > div:nth-child(3) dt { color: var(--accent-3); }
.case-grid dd { margin: 0; color: #c9cde0; font-size: 15px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 26px; }
.tags li { font: 12.5px var(--mono); color: var(--muted); padding: 5px 10px; border-radius: 8px; background: var(--surface-2); }
.case-links { display: flex; flex-wrap: wrap; gap: 26px; }
.link-arrow { font-weight: 600; font-size: 15px; display: inline-flex; gap: 8px; align-items: center; }
.link-arrow::after { content: "↗"; transition: transform .25s var(--ease); color: var(--accent-2); }
.link-arrow:hover::after { transform: translate(3px, -3px); }

/* ============ Demos ============ */
.demos { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.demos li { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.demo-frame { aspect-ratio: 16 / 9; background: #000; }
.demo-frame iframe, .demo-frame img { width: 100%; height: 100%; border: 0; object-fit: cover; }
.demos h3 { font-size: 17px; padding: 16px 18px; }

/* ============ Timeline ============ */
.timeline { border-left: 1px solid var(--line-2); margin-left: 6px; }
.timeline li { display: grid; grid-template-columns: 190px 1fr; gap: 24px; padding: 0 0 44px 32px; position: relative; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 6px; width: 11px; height: 11px; border-radius: 50%; background: var(--bg); border: 2px solid var(--accent); }
.when { font: 500 13px var(--mono); color: var(--dim); padding-top: 3px; }
.timeline h3 { font-size: 21px; font-weight: 600; }
.timeline .org { color: var(--muted); font-weight: 500; }
.timeline p { color: var(--muted); margin: 10px 0 0; max-width: 680px; }

/* ============ Proof ============ */
.proof-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.proof { border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); overflow: hidden; transition: transform .35s var(--ease), border-color .3s; }
.proof:hover { transform: translateY(-4px); border-color: var(--line-2); }
.proof a { display: flex; flex-direction: column; height: 100%; }
.proof img { aspect-ratio: 4 / 3; width: 100%; object-fit: cover; background: #fff; }
.proof img.contain { object-fit: contain; padding: 18px; background: #f3f6fb; }
.proof-body { display: flex; flex-direction: column; gap: 4px; padding: 16px 18px 18px; }
.proof-body b { font-family: var(--display); font-size: 16px; }
.proof-body small { color: var(--muted); font-size: 13px; }
.more-certs { margin-top: 22px; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 0 18px; background: var(--surface); }
.more-certs summary { cursor: pointer; padding: 16px 0; font: 500 14px var(--mono); color: var(--muted); }
.more-certs ul { display: flex; flex-wrap: wrap; gap: 10px 24px; padding: 0 0 18px; }
.more-certs a { color: var(--text); font-size: 14px; border-bottom: 1px solid var(--line-2); }
.more-certs a:hover { border-color: var(--accent-2); }

/* ============ CTA ============ */
.cta {
  text-align: center; padding: clamp(40px, 7vw, 88px) clamp(20px, 5vw, 64px); border-radius: 32px;
  border: 1px solid var(--line-2); position: relative; overflow: hidden;
  background: radial-gradient(ellipse at 50% 0%, rgba(245,165,36,.08), transparent 60%), var(--bg-2);
}
.cta .section-sub { max-width: 560px; margin-inline: auto; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin: 36px 0 30px; }
.copy-hint { font: 500 11px var(--mono); padding: 4px 8px; border-radius: 6px; background: rgba(0,0,0,.18); }

/* ============ Footer ============ */
.footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 56px 0 40px; margin-top: 80px; border-top: 1px solid var(--line); color: var(--dim); font-size: 14px; }

/* ============ Reveal ============ */
.js .reveal { opacity: 0; transform: translateY(24px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.in { opacity: 1; transform: none; }

/* ============ Responsive ============ */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 40px; padding-top: 40px; }
  .hero-visual { max-width: 420px; }
  .code-card { left: auto; right: -8px; }
  .case-grid { grid-template-columns: 1fr; }
  .proof-grid { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats li:nth-child(2) { border-right: 0; }
  .stats li:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 720px) {
  .nav-links { display: none; }
  .brand-name { display: none; }
  .timeline li { grid-template-columns: 1fr; gap: 6px; padding-left: 24px; }
  .section { padding-top: 88px; }
  .cta-actions .btn { width: 100%; }
  [data-copy-label] { overflow-wrap: anywhere; }
}
@media (max-width: 460px) {
  .proof-grid { grid-template-columns: 1fr; }
  .code-card { right: -4px; bottom: 18px; width: 78%; }
}

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

/* ============ Language toggle ============ */
.nav-actions { display: flex; align-items: center; gap: 10px; }
.lang-toggle { display: inline-flex; padding: 3px; border-radius: 999px; border: 1px solid var(--line-2); background: var(--surface); cursor: pointer; font: 600 12px/1 var(--mono); }
.lang-toggle span { padding: 7px 10px; border-radius: 999px; color: var(--dim); transition: background .25s, color .25s; }
html[lang="en"] .lang-toggle [data-lang="en"], html[lang="es"] .lang-toggle [data-lang="es"] { background: var(--surface-2); color: var(--text); }