/* ProdSuite landing page. Flame palette from crates/ui-egui/src/theme.rs. */
@font-face { font-family: Inter; src: url("fonts/Inter-Regular.ttf") format("truetype"); font-weight: 400; font-display: swap; }
@font-face { font-family: Inter; src: url("fonts/Inter-Medium.ttf") format("truetype"); font-weight: 500; font-display: swap; }
@font-face { font-family: Inter; src: url("fonts/Inter-SemiBold.ttf") format("truetype"); font-weight: 600 700; font-display: swap; }

:root {
  --bg: #FBF8F5; --bg-alt: #F3EFEA; --card: #FFFFFF; --line: #E7E3DF; --line-soft: #EFECE9;
  --text: #1C1917; --muted: #57534E; --faint: #6B645E;
  --accent: #D9480F; --accent-text: #C2410C; --accent-soft: #FFEFE6; --on-accent: #FFFFFF;
  --shadow: 0 1px 2px rgba(41, 26, 16, .06), 0 18px 48px -18px rgba(41, 26, 16, .28);
  --radius: 14px;
  color-scheme: light;
}
html[data-theme="dark"] {
  --bg: #0C0C0E; --bg-alt: #121214; --card: #18181B; --line: #2E2E33; --line-soft: #26262A;
  --text: #F4F4F5; --muted: #A1A1AA; --faint: #8E8E96;
  --accent: #F05A1A; --accent-text: #FF9F6E; --accent-soft: #2A1A12; --on-accent: #FFFFFF;
  --shadow: 0 1px 2px rgba(0, 0, 0, .5), 0 24px 60px -20px rgba(0, 0, 0, .8);
  color-scheme: dark;
}

* { 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 17px/1.6 Inter, system-ui, -apple-system, "Segoe UI", sans-serif; font-feature-settings: "cv11", "ss01"; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { font-weight: 600; letter-spacing: -0.022em; line-height: 1.12; margin: 0; }
p { margin: 0; }
code, pre { font-family: ui-monospace, "SF Mono", Menlo, monospace; }
.wrap { width: min(1180px, 100% - 40px); margin-inline: auto; }
.narrow { width: min(820px, 100% - 40px); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: var(--on-accent); padding: 8px 14px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 12px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

/* Header */
.top { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 86%, transparent); backdrop-filter: saturate(1.4) blur(14px); -webkit-backdrop-filter: saturate(1.4) blur(14px); border-bottom: 1px solid transparent; transition: border-color .2s; }
.top.scrolled { border-bottom-color: var(--line); }
.top-in { display: flex; align-items: center; gap: 28px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; font-size: 18px; letter-spacing: -0.01em; }
.nav { display: flex; gap: 26px; margin-left: 12px; }
.nav a { text-decoration: none; color: var(--muted); font-size: 15px; font-weight: 500; transition: color .15s; }
.nav a:hover { color: var(--text); }
.tools { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.lang { font-size: 14px; font-weight: 500; color: var(--muted); text-decoration: none; padding: 6px 10px; border-radius: 8px; }
.lang:hover { color: var(--text); background: var(--line-soft); }
.theme { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--muted); cursor: pointer; }
.theme:hover { color: var(--text); }
html[data-theme="light"] .moon, html[data-theme="dark"] .sun { display: none; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; border-radius: 11px; padding: 11px 18px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; cursor: pointer; transition: transform .15s, background-color .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-fill { background: var(--accent); color: var(--on-accent); box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
.btn-fill:hover { background: color-mix(in srgb, var(--accent) 88%, #000); }
.btn-line { border-color: var(--line); background: var(--card); color: var(--text); }
.btn-line:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.btn-sm { padding: 7px 13px; font-size: 14px; border-radius: 9px; }
.btn-lg { padding: 14px 22px; font-size: 16px; border-radius: 12px; }
.btn-meta { font-weight: 500; opacity: .78; font-size: 14px; }
.link { color: var(--accent-text); font-weight: 500; font-size: 15px; text-underline-offset: 3px; }

/* Hero */
.hero { padding: 64px 0 40px; position: relative; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: -30% -10% auto 40%; height: 620px; background: radial-gradient(closest-side, var(--accent-soft), transparent); opacity: .9; pointer-events: none; }
.hero-in { position: relative; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 56px; align-items: center; }
.hero-mark { border-radius: 18px; margin-bottom: 26px; box-shadow: 0 12px 30px -12px rgba(194, 51, 11, .55); }
.eyebrow { font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--accent-text); margin-bottom: 14px; }
h1 { font-size: clamp(38px, 5.2vw, 60px); letter-spacing: -0.035em; }
.lead { font-size: 19px; color: var(--muted); margin-top: 18px; max-width: 38em; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 22px; margin-top: 32px; }
.note { margin-top: 16px; font-size: 14px; color: var(--faint); }
.credit { margin-top: 22px; font-size: 14px; color: var(--muted); }
.credit strong { color: var(--text); font-weight: 600; }
.frame { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: var(--card); box-shadow: var(--shadow); }
.hero-shot .frame { transform: perspective(1800px) rotateY(-4deg) rotateX(1deg); transform-origin: left center; }
html[data-theme="light"] .only-dark, html[data-theme="dark"] .only-light { display: none; }

/* Pillars */
.pillars { padding: 30px 0 70px; }
.pillars-in { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.pillar { border-top: 2px solid var(--accent); padding-top: 18px; }
.pillar h3 { font-size: 19px; }
.pillar p { color: var(--muted); margin-top: 8px; font-size: 16px; }

/* Sections */
.sec { padding: 96px 0; }
.sec-alt { background: var(--bg-alt); border-block: 1px solid var(--line-soft); }
.head { max-width: 720px; margin-bottom: 44px; }
h2 { font-size: clamp(30px, 3.6vw, 44px); letter-spacing: -0.03em; }

/* Features */
.feats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.feat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); transition: border-color .2s, box-shadow .2s; }
.feat:hover { border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }
.feat[open] { box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
.feat summary { list-style: none; cursor: pointer; padding: 22px 22px 20px; display: grid; grid-template-columns: auto 1fr; gap: 6px 16px; }
.feat summary::-webkit-details-marker { display: none; }
.feat-ic { grid-row: span 2; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: var(--accent-soft); color: var(--accent-text); }
.feat-txt { display: flex; flex-direction: column; gap: 4px; }
.feat-n { font-size: 12px; font-weight: 600; color: var(--faint); letter-spacing: .06em; }
.feat-txt strong { font-size: 18px; font-weight: 600; letter-spacing: -0.015em; }
.feat-sum { color: var(--muted); font-size: 15px; line-height: 1.5; }
.feat-more { grid-column: 2; font-size: 14px; font-weight: 500; color: var(--accent-text); display: inline-flex; align-items: center; gap: 6px; margin-top: 6px; }
.feat-more::after { content: ""; width: 7px; height: 7px; border-right: 1.6px solid currentColor; border-bottom: 1.6px solid currentColor; transform: rotate(45deg) translateY(-2px); transition: transform .2s; }
.feat[open] .feat-more::after { transform: rotate(225deg) translate(-2px, 0); }
.feat ul { margin: 0; padding: 4px 22px 22px 82px; display: grid; gap: 9px; }
.feat li { font-size: 15px; line-height: 1.5; color: var(--text); padding-left: 2px; }
.feat li::marker { color: var(--accent); }

/* Screens */
.shots { display: grid; grid-template-columns: repeat(2, 1fr); gap: 34px 28px; }
.shot figcaption { margin-top: 14px; color: var(--muted); font-size: 15px; }
.shot figcaption strong { color: var(--text); font-weight: 600; margin-right: 4px; }
figure { margin: 0; }

/* Downloads */
.dls { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.dl { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; display: flex; flex-direction: column; gap: 12px; min-width: 0; }
.dl-main { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: var(--shadow); background: linear-gradient(180deg, var(--accent-soft), var(--card) 55%); }
.dl-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.dl h3 { font-size: 19px; }
.size { font-size: 13px; color: var(--faint); font-weight: 500; white-space: nowrap; }
.dl > p { color: var(--muted); font-size: 15px; }
.dl .btn { align-self: flex-start; margin-top: 4px; }
.file { font-size: 13px; color: var(--faint); word-break: break-all; }
.sha { font-size: 12px; color: var(--faint); line-height: 1.45; }
.sha span { font-weight: 600; margin-right: 4px; }
.sha code { word-break: break-all; font-size: 11.5px; }
.dl-foot { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; margin-top: 34px; padding-top: 28px; border-top: 1px solid var(--line); }
.dl-foot h3 { font-size: 16px; margin-bottom: 10px; }
.dl-foot ul { margin: 0 0 12px; padding-left: 20px; color: var(--muted); font-size: 15px; }
.dl-foot p { color: var(--muted); font-size: 15px; }
.muted { color: var(--faint) !important; font-size: 14px !important; }
pre { margin: 12px 0 0; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; overflow-x: auto; font-size: 13px; }

/* Suite */
.suite { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.app { display: flex; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; opacity: .72; }
.app-on { opacity: 1; border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); box-shadow: var(--shadow); }
.app img { border-radius: 12px; flex: none; }
.app div { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.app strong { font-weight: 600; font-size: 15px; }
.app div span { color: var(--muted); font-size: 13px; line-height: 1.4; }
.app .state { font-size: 11px; font-weight: 600; letter-spacing: .04em; text-transform: uppercase; color: var(--faint); white-space: nowrap; }
.app-on .state { color: var(--accent-text); }
.head .cta { margin-top: 22px; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.qa { background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.qa summary { cursor: pointer; list-style: none; padding: 18px 50px 18px 20px; font-weight: 600; position: relative; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; position: absolute; right: 20px; top: 50%; transform: translateY(-50%); font-size: 22px; font-weight: 400; color: var(--accent-text); transition: transform .2s; }
.qa[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.qa p { padding: 0 20px 20px; color: var(--muted); font-size: 16px; }

/* Footer */
.foot { padding: 48px 0 56px; border-top: 1px solid var(--line); }
.foot-in { display: grid; gap: 14px; }
.foot-brand { display: flex; align-items: center; gap: 12px; }
.foot-brand div { display: flex; flex-direction: column; line-height: 1.3; }
.foot-brand span { color: var(--muted); font-size: 14px; }
.foot-credit { font-size: 14px; color: var(--muted); }
.foot-credit a { color: var(--text); font-weight: 500; text-underline-offset: 3px; }
.foot-legal { font-size: 13px; color: var(--faint); max-width: 860px; }

/* Reveal: only with JS, never for reduced motion. */
@media (prefers-reduced-motion: no-preference) {
  .js [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s cubic-bezier(.2, .7, .2, 1); }
  .js [data-reveal].in { opacity: 1; transform: none; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } .btn, .btn:hover { transform: none; } }

/* Responsive */
@media (max-width: 1020px) {
  .hero-in { grid-template-columns: 1fr; gap: 44px; }
  .hero-shot .frame { transform: none; }
  .feats { grid-template-columns: repeat(2, 1fr); }
  .dls { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 760px) {
  body { font-size: 16px; }
  .nav { display: none; }
  .wrap { width: calc(100% - 32px); }
  .top-in { gap: 12px; }
  .hero { padding-top: 40px; }
  .lead { font-size: 17px; }
  .pillars-in, .feats, .shots, .dl-foot { grid-template-columns: minmax(0, 1fr); }
  .sec { padding: 68px 0; }
  .feat ul { padding-left: 22px; }
  .btn-lg { width: 100%; }
}
@media (max-width: 380px) { .tools .btn-sm { display: none; } }