/* Checkmate — modern tech-studio theme */
:root {
  --bg: #0b0d12;
  --bg-alt: #10131a;
  --panel: #151923;
  --line: #232937;
  --text: #e8ebf2;
  --muted: #9aa3b5;
  --accent: #5b8cff;
  --accent-2: #36d6b4;
  --warn: #f5b94a;
  --radius: 14px;
  --maxw: 1160px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, .6);
  color-scheme: dark;
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f7f8fb; --bg-alt: #eef1f7; --panel: #ffffff; --line: #dde2ec;
    --text: #0f1420; --muted: #5a6478; --shadow: 0 20px 50px -25px rgba(15, 20, 32, .25);
  }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
section[id] { scroll-margin-top: 72px; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 17px/1.6 Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: "Space Grotesk", Inter, sans-serif; line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.01em; }
h1 { font-size: clamp(2.3rem, 5.6vw, 4.2rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); font-weight: 600; max-width: 22ch; }
h3 { font-size: 1.25rem; font-weight: 600; }
h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: .3em; }
p { margin: 0 0 1em; }
.wrap { width: min(var(--maxw), 100% - 32px); margin-inline: auto; }
.narrow { max-width: 760px; }
.accent { background: linear-gradient(90deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.eyebrow { color: var(--accent-2); font: 600 .78rem/1 Inter, sans-serif; letter-spacing: .14em; text-transform: uppercase; margin-bottom: 1rem; }
.body, .lede { color: var(--muted); max-width: 60ch; }
.lede { font-size: 1.15rem; }
.small { font-size: .85rem; color: var(--muted); margin: 0; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 8px 12px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: .55em; padding: .8em 1.25em; border-radius: 999px; font-weight: 600; font-size: .95rem; border: 1px solid transparent; transition: transform .15s ease, background .2s, border-color .2s; }
.btn:hover { transform: translateY(-1px); }
.btn:focus-visible, a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 8px 24px -8px rgba(91, 140, 255, .7); }
.btn-primary:hover { background: #6f9aff; }
.btn-ghost { border-color: var(--line); color: var(--text); }
.btn-ghost:hover { border-color: var(--muted); }
.btn-sm { min-height: 44px; padding: .55em 1em; font-size: .88rem; background: var(--panel); border-color: var(--line); }
.btn-lg { padding: 1em 1.6em; font-size: 1.05rem; }

/* nav */
.nav { position: sticky; top: 0; z-index: 50; backdrop-filter: blur(12px); background: color-mix(in srgb, var(--bg) 78%, transparent); border-bottom: 1px solid var(--line); }
.nav-inner { display: flex; align-items: center; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; min-height: 44px; font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.15rem; }
/* gold logo lockup: emblem + wordmark (with tagline) cut from the brand logo */
.brand-emblem { height: 48px; width: auto; filter: drop-shadow(0 0 10px rgba(242,196,107,.25)); }
.brand-word { height: 38px; width: auto; }
@media (max-width: 920px) { .brand-emblem { height: 40px; } .brand-word { height: 30px; } }
.brand-foot .brand-emblem { height: 32px; }
.brand-foot .brand-word { height: 24px; }
@media (max-width: 380px) { .brand-emblem { height: 34px; } .brand-word { height: 25px; } }
.nav-links { display: flex; gap: 22px; margin-left: auto; font-size: .92rem; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.menu { display: none; position: relative; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; }
.nav-links a.nav-cta { display: none; }
.menu span { position: absolute; left: 11px; width: 22px; height: 2px; border-radius: 2px; background: var(--text); transition: transform .2s, top .2s; }
.menu span:first-child { top: 17px; }
.menu span:last-child { top: 25px; }

/* hero */
.hero { position: relative; padding: 96px 0 64px; overflow: hidden; }
.grid-bg { position: absolute; inset: 0; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 48px 48px; opacity: .35; mask-image: radial-gradient(ellipse at 50% 20%, #000 20%, transparent 70%); pointer-events: none; }
.hero-inner { position: relative; isolation: isolate; display: grid; grid-template-columns: 1.2fr .8fr; gap: 32px; align-items: center; }
.hero-art { margin: 0; position: relative; }
.hero-art img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 50%; -webkit-mask-image: radial-gradient(circle at 50% 50%, #000 45%, transparent 70%); mask-image: radial-gradient(circle at 50% 50%, #000 45%, transparent 70%); animation: float 7s ease-in-out infinite; }
@keyframes float { 50% { transform: translateY(-10px); } }

/* section artwork */
.art { margin: 32px 0 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); background: #0b0d12; }
.art img { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; transition: transform .6s ease; }
@media (hover: hover) { .art:hover img { transform: scale(1.03); } }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 24px; }
.hero-points { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 22px; color: var(--muted); font-size: .92rem; }
.hero-points li { display: flex; align-items: center; gap: 8px; }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 10px var(--accent-2); }

.console { margin-top: 56px; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.console-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.console-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.console-bar span { margin-left: 8px; font-family: ui-monospace, SFMono-Regular, Consolas, monospace; }
.console-body { padding: 18px 20px; font: .88rem/1.9 ui-monospace, SFMono-Regular, Consolas, monospace; color: var(--muted); overflow-x: auto; }
.console-body p { margin: 0; white-space: nowrap; opacity: 0; transform: translateY(4px); animation: line .5s ease forwards; }
.console-body p:nth-child(1) { animation-delay: .2s } .console-body p:nth-child(2) { animation-delay: .6s }
.console-body p:nth-child(3) { animation-delay: 1s } .console-body p:nth-child(4) { animation-delay: 1.4s }
.console-body p:nth-child(5) { animation-delay: 1.8s } .console-body p:nth-child(6) { animation-delay: 2.2s }
.console-body em { color: var(--text); font-style: normal; }
.ok { color: var(--accent-2); } .warn { color: var(--warn); }
.cursor { animation: line .5s ease 2.2s forwards, blink 1s steps(1) 2.7s infinite !important; }
@keyframes line { to { opacity: 1; transform: none; } }
@keyframes blink { 50% { opacity: 0; } }

/* sections */
.section { padding: 96px 0; }
.alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: border-color .2s, transform .2s; display: flex; flex-direction: column; }
@media (hover: hover) { .card:hover { border-color: var(--accent); transform: translateY(-3px); } }
.card p { color: var(--muted); flex: 1; }
.more { color: var(--accent); font-weight: 600; font-size: .92rem; }
.icon { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: color-mix(in srgb, var(--accent) 14%, transparent); margin-bottom: 18px; }
.icon svg { width: 24px; height: 24px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: start; }
.split.reverse > :first-child { order: 2; }
.feature-list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.feature-list li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.feature-list p { color: var(--muted); font-size: .94rem; margin: 0; }

.audit-panel { display: grid; gap: 14px; }
.step { display: flex; gap: 16px; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; }
.step > span { font: 700 .85rem/1 "Space Grotesk", sans-serif; color: var(--accent-2); border: 1px solid var(--line); border-radius: 8px; padding: 8px 9px; height: fit-content; }
.step p { color: var(--muted); font-size: .94rem; margin: 0; }

.pillars { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 32px; }
.pillar { border-top: 2px solid var(--accent); padding-top: 20px; }
.pillar p { color: var(--muted); }

.process { list-style: none; padding: 0; margin: 36px 0 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.process li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 22px; }
.process span { display: inline-grid; place-items: center; width: 32px; height: 32px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; margin-bottom: 14px; }
.process p { color: var(--muted); font-size: .94rem; margin: 0; }

details { border-bottom: 1px solid var(--line); }
summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 44px; padding: 16px 0; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--accent); font-size: 1.3rem; line-height: 1; }
details[open] summary::after { content: "–"; }
details p { color: var(--muted); margin: 0 0 18px; }

.cta { padding: 96px 0; text-align: center; background: radial-gradient(ellipse at 50% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%); }
.cta-inner h2 { margin-inline: auto; }
.cta-inner p { color: var(--muted); margin-bottom: 28px; }

.footer { border-top: 1px solid var(--line); padding: 32px 0; }
.footer-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 16px 28px; }
.footer-links { display: flex; gap: 18px; margin-left: auto; color: var(--muted); font-size: .9rem; }
.footer-links a { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; min-width: 44px; padding: 0 6px; }
.footer-links a:hover { color: var(--text); }

/* reveal on scroll */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }

/* responsive */
@media (max-width: 980px) {
  .cards, .pillars { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .split.reverse > :first-child { order: 0; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { position: absolute; right: -12%; top: -40px; width: 60%; max-width: 420px; opacity: .35; z-index: -1; pointer-events: none; }
  .hero-copy { position: relative; }
  .art { max-width: 560px; }
  .process { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 920px) {
  .nav-inner { gap: 12px; }
  .nav-links { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; gap: 0; background: var(--bg); border-bottom: 1px solid var(--line); padding: 8px 16px 16px; max-height: calc(100vh - 64px); max-height: calc(100dvh - 64px); overflow-y: auto; box-shadow: var(--shadow); }
  .nav-links a { display: flex; align-items: center; min-height: 48px; border-bottom: 1px solid var(--line); font-size: 1rem; }
  .nav.open .nav-links { display: flex; }
  .nav .btn-sm { margin-left: auto; }
  .menu { display: block; }
  .nav.open .menu span:first-child { top: 21px; transform: rotate(45deg); }
  .nav.open .menu span:last-child { top: 21px; transform: rotate(-45deg); }
}
@media (max-width: 560px) {
  .nav .btn-sm { display: none; }
  .menu { margin-left: auto; }
  .eyebrow { letter-spacing: .06em; font-size: .75rem; line-height: 1.5; }
  .eyebrow .nw { white-space: nowrap; }
  #bg-canvas { opacity: .55; }
  .hero-art { opacity: .16; }
  .nav-links a.nav-cta { display: flex; justify-content: center; margin-top: 14px; border: 0; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 600; }
}
@media (max-width: 760px) {
  .feature-list, .process { grid-template-columns: 1fr; }
  .section, .cta { padding: 64px 0; }
  .hero { padding: 64px 0 40px; }
  .hero-art { width: 80%; right: -25%; opacity: .25; }
  .footer-links { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .console-body p, .reveal { opacity: 1; transform: none; }
}

/* signals */
.risk { margin: 20px 0 0; padding: 14px 16px; border: 1px solid color-mix(in srgb, var(--warn) 40%, var(--line)); border-radius: 12px; background: color-mix(in srgb, var(--warn) 7%, transparent); color: var(--muted); font-size: .85rem; line-height: 1.55; }
.risk strong { color: var(--warn); }
/* four service cards: 4-up wide, 2-up mid, 1-up phone */
.cards { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1100px) { .cards { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 760px) { .cards { grid-template-columns: 1fr; } }

/* animated background (bg.js) */
#bg-canvas { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.alt { background: color-mix(in srgb, var(--bg-alt) 72%, transparent); }
.card, .feature-list li, .step, .process li { background: color-mix(in srgb, var(--panel) 88%, transparent); backdrop-filter: blur(3px); }
.footer { background: color-mix(in srgb, var(--bg) 85%, transparent); }

/* opening intro (intro-core.js + intro.js) */
#intro { display: none; }
.intro-on #intro { display: block; position: fixed; inset: 0; z-index: 1000; background: #000; cursor: pointer;
  /* failsafe: if the script never runs, the overlay still gets out of the way */
  animation: intro-failsafe .4s ease 7s forwards; }
#intro canvas { display: block; }
.intro-skip { position: absolute; right: 20px; bottom: 20px; padding: .55em 1.1em; border-radius: 999px; border: 1px solid rgba(0,255,123,.35);
  background: rgba(0,0,0,.55); color: #bfffd9; font: 500 .85rem Inter, sans-serif; letter-spacing: .04em; cursor: pointer; }
.intro-skip:hover { border-color: #00ff7b; color: #fff; }
@keyframes intro-failsafe { to { opacity: 0; visibility: hidden; pointer-events: none; } }