/* DC WebApps home: dark showcase surface of the one design system (context/design-system.md): navy, slate text, brand teal; serif display headlines, mono labels.
   Loaded after styles.css, scoped to body.home. Motion lives in home.js (GSAP); this file only sets start states. */
:root {
  /* One theme with the PHP page (D-051): light surfaces, navy for the hero and footer, one brand green. */
  --x-ink: #ffffff;          /* page */
  --x-deep: #f1f5f9;         /* soft band */
  --x-panel: #ffffff;        /* cards, with --x-line border */
  --x-bone: #0f172a;         /* labels, strong text */
  --x-bone-2: #334155;       /* body text */
  --x-bone-3: #475569;       /* muted */
  --x-warm: #0f172a;         /* headings */
  --x-accent: #0f766e;       /* the one brand green (design-system.md §0) */
  --x-accent-soft: #115e59;  /* hover only */
  --x-em: #0f766e;           /* italic emphasis in headlines */
  --x-on-accent: #ffffff;    /* text on green fills */
  --x-line: #e2e8f0;
  --x-line-strong: rgb(15 23 42 / 22%);
  --x-hover: rgb(15 23 42 / 5%);
  --x-accent-text: #0f766e;  /* green text on light surfaces */
  --x-ghost: #0f766e;        /* secondary button, same as .btn-ghost on the PHP page */
  --x-ghost-on: #ffffff;
  --serif: 'Instrument Serif', 'GT Sectra', Georgia, serif;
  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}
/* Navy scope: hero and footer (the PHP page's navy). Green stays a fill here; text is white. */
.hero-x, .home-footer, .home .site-header:not(.scrolled) {
  --x-ink: #0b2545;
  --x-deep: #0b2545;
  --x-panel: #102f57;
  --x-bone: #f8fafc;
  --x-bone-2: #e2e8f0;
  --x-bone-3: #cbd5e1;
  --x-warm: #ffffff;
  --x-accent-soft: #ffffff;
  --x-em: #ffffff;
  --x-line: rgb(226 232 240 / 16%);
  --x-line-strong: rgb(226 232 240 / 40%);
  --x-hover: rgb(226 232 240 / 10%);
  --x-accent-text: #e2e8f0;  /* no green text on navy: light grey instead */
  --x-ghost: #ffffff;
  --x-ghost-on: #0b2545;
}
html:has(body.home) { background: var(--x-ink); }
body.home { background: var(--x-ink); color: var(--x-bone-2); font-family: var(--sans); }
.home a { color: var(--x-accent-text); }
.home a:hover { color: var(--x-accent-soft); }
.home h1, .home h2, .home h3 { color: var(--x-warm); }
.home ::selection { background: var(--x-accent); color: var(--x-on-accent); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; z-index: 100; background: var(--x-accent); color: var(--x-on-accent); padding: 0.5rem 1rem; border-radius: 8px; }

/* Header: transparent over the hero, glass once scrolled */
.home .site-header { position: fixed; inset: 0 0 auto 0; background: transparent; border-bottom: 1px solid transparent; transition: background 0.3s var(--ease), border-color 0.3s var(--ease); }
.home .site-header.scrolled { background: rgb(255 255 255 / 92%); border-color: var(--x-line); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); }
.home .logo { color: var(--x-warm); font-family: var(--sans); }
.home .site-header:not(.scrolled) .logo-svg, .home-footer .logo-svg { color: #fff; }
.home .nav nav a:not(.btn) { color: var(--x-bone-2); font-family: var(--mono); font-size: 0.82rem; letter-spacing: 0.02em; }
.home .nav nav a:not(.btn):hover { color: var(--x-warm); }
.progress { position: fixed; inset: 0 0 auto 0; height: 2px; background: var(--x-accent); transform-origin: 0 50%; transform: scaleX(0); z-index: 60; }

/* Buttons */
.home .btn { font-family: var(--sans); font-weight: 700; font-size: 0.95rem; border-radius: 10px; background: var(--x-accent); color: var(--x-on-accent); }
.home .btn:hover { background: #115e59; color: var(--x-on-accent); }
.home .btn-line { background: transparent; color: var(--x-ghost); box-shadow: inset 0 0 0 2px var(--x-ghost); }
.home .btn-line:hover { background: var(--x-ghost); color: var(--x-ghost-on); }
.magnetic { will-change: transform; }

/* Type helpers */
.mono-label { font-family: var(--mono); text-transform: uppercase; letter-spacing: 0.14em; font-size: 0.76rem; color: var(--x-accent-text); margin: 0 0 0.9rem; }
.mono-meta { font-family: var(--mono); font-size: 0.8rem; color: var(--x-bone-3); letter-spacing: 0.02em; margin: 0; }
.x-title { font-family: var(--serif); font-weight: 400; font-size: clamp(2.1rem, 4.6vw, 3.8rem); line-height: 1.04; letter-spacing: -0.01em; max-width: 20ch; margin: 0 0 2.5rem; }
.x-title em, .hero-title em { font-style: italic; color: var(--x-em); }
.x-lead { font-size: 1.15rem; color: var(--x-bone-2); max-width: 32rem; }

/* Hero */
.hero-x { position: relative; min-height: 100svh; display: grid; align-items: center; padding: 7.5rem 0 4.5rem; overflow: hidden; isolation: isolate;
  background: radial-gradient(60rem 30rem at 85% 20%, rgb(15 118 110 / 30%), transparent 60%), var(--x-ink); }
.hero-img { position: absolute; inset: 0; width: 100%; height: 115%; object-fit: cover; z-index: -2; filter: saturate(0.8) contrast(1.05); }
.hero-shade { position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgb(11 37 69 / 96%) 0%, rgb(11 37 69 / 88%) 40%, rgb(11 37 69 / 60%) 100%), linear-gradient(0deg, var(--x-ink) 0%, transparent 35%); }
.hero-x-grid { display: grid; gap: 3.5rem; align-items: center; }
@media (min-width: 1000px) { .hero-x-grid { grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); } }
.hero-title { font-family: var(--serif); font-weight: 400; font-size: clamp(2.7rem, 6.2vw, 5.3rem); line-height: 1.02; letter-spacing: -0.015em; margin: 0 0 1.4rem; max-width: 15ch; }
.hero-sub { font-size: clamp(1.05rem, 1.5vw, 1.22rem); color: var(--x-bone-2); max-width: 34rem; margin-bottom: 0.4rem; }
.hero-copy .cta-row { margin: 2rem 0 1.4rem; }

/* Animated builder preview */
.builder { position: relative; width: 100%; max-width: 32rem; justify-self: center; background: #102f57; border: 1px solid var(--x-line); border-radius: 16px;
  box-shadow: 0 50px 90px -30px rgb(0 0 0 / 70%), 0 0 0 1px rgb(15 118 110 / 10%); transform-style: preserve-3d; }
.builder-bar { display: flex; align-items: center; gap: 0.4rem; padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--x-line); }
.builder-bar > span { width: 0.6rem; height: 0.6rem; border-radius: 50%; background: #334155; }
.builder-bar > span:first-child { background: var(--x-accent); }
.builder-url { flex: 1; margin-left: 0.6rem; font: 500 0.72rem var(--mono); color: var(--x-bone-3); background: rgb(255 255 255 / 5%); border-radius: 999px; padding: 0.25rem 0.75rem; }
.builder-page { padding: 1.1rem; display: grid; gap: 0.8rem; background: linear-gradient(180deg, #f8fafc, #e2e8f0); border-radius: 0 0 15px 15px; color: #0b1220; }
.b-nav { display: flex; gap: 0.5rem; }
.b-nav i { height: 0.45rem; flex: 0 0 2.2rem; background: #cbd5e1; border-radius: 4px; }
.b-nav i:first-child { flex-basis: 3.4rem; background: #0b2545; }
.b-title { font-family: var(--serif); font-size: clamp(1.25rem, 2.2vw, 1.6rem); line-height: 1.1; min-height: 1.8em; margin: 0 0 0.4rem; color: #0b2545; }
.b-caret { display: inline-block; width: 2px; height: 1.1em; background: var(--x-accent); margin-left: 2px; vertical-align: -0.15em; animation: blink 1s steps(1) infinite; }
.b-line { height: 0.45rem; background: #cbd5e1; border-radius: 4px; margin: 0.35rem 0; width: 86%; }
.b-line.short { width: 58%; }
.b-btn { display: inline-block; margin-top: 0.6rem; background: var(--x-accent); color: var(--x-ink); font: 600 0.68rem var(--mono); padding: 0.35rem 0.75rem; border-radius: 999px; }
.b-img { height: 5.5rem; border-radius: 10px; background: linear-gradient(135deg, #0f766e 0%, #0b2545 100%); position: relative; overflow: hidden; }
.b-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(110deg, transparent 30%, rgb(255 255 255 / 35%) 50%, transparent 70%); transform: translateX(-120%); animation: shine 4.5s var(--ease) infinite; }
.b-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.5rem; }
.b-cards div { height: 3rem; border-radius: 8px; background: #fff; border: 1px solid #e2e8f0; }
.b-ai, .b-chips span, .b-toast { font: 500 0.72rem var(--mono); border-radius: 999px; white-space: nowrap; }
.b-ai { position: absolute; left: 0.75rem; top: 41%; display: flex; gap: 0.45rem; align-items: center; background: rgb(11 37 69 / 94%); border: 1px solid rgb(15 118 110 / 45%); color: var(--x-warm); padding: 0.45rem 0.75rem; box-shadow: 0 12px 30px rgb(0 0 0 / 40%); }
.b-dot { width: 0.5rem; height: 0.5rem; border-radius: 50%; background: var(--x-accent); animation: pulse 1.4s ease-in-out infinite; }
.b-chips { position: absolute; right: 0.75rem; bottom: 18%; display: grid; gap: 0.35rem; justify-items: end; }
.b-chips span { background: rgb(11 37 69 / 94%); border: 1px solid var(--x-line); color: var(--x-accent-soft); padding: 0.3rem 0.65rem; }
.b-cursor { position: absolute; left: 62%; top: 70%; width: 18px; height: 22px; opacity: 0; pointer-events: none;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 22'%3E%3Cpath d='M1 1l15 9-7 1.5L6 20z' fill='%23f8fafc' stroke='%230a1420' stroke-width='1.5' stroke-linejoin='round'/%3E%3C/svg%3E") no-repeat center / contain; }
.b-toast { position: absolute; left: 50%; bottom: -0.9rem; transform: translateX(-50%); background: var(--x-accent); color: var(--x-ink); padding: 0.45rem 0.95rem; font-weight: 600; opacity: 0; }
@media (min-width: 1100px) { .b-ai { left: -1.25rem; } .b-chips { right: -1rem; } }

/* Platform marquee */
.marquee { border-block: 1px solid var(--x-line); overflow: hidden; padding: 1.1rem 0; background: var(--x-deep); }
.marquee-track { display: flex; gap: 2.75rem; width: max-content; animation: marquee 40s linear infinite; font-family: var(--serif); font-size: 1.55rem; color: var(--x-bone-3); white-space: nowrap; }
.marquee-track span:nth-child(11n + 1) { font: 500 0.76rem var(--mono); text-transform: uppercase; letter-spacing: 0.14em; color: var(--x-accent-text); align-self: center; }
.marquee:hover .marquee-track { animation-play-state: paused; }

/* Sections */
.x-section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.x-section-alt { background: var(--x-deep); border-block: 1px solid var(--x-line); }
.x-grid-4 { display: grid; gap: 1rem; }
@media (min-width: 720px) { .x-grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1100px) { .x-grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.x-card { position: relative; padding: 1.6rem; min-height: 15rem; border: 1px solid var(--x-line); border-radius: var(--radius, 12px); box-shadow: var(--shadow, 0 1px 2px rgb(15 23 42 / 6%), 0 8px 24px rgb(15 23 42 / 6%)); overflow: hidden;
  background: radial-gradient(420px circle at var(--mx, -200px) var(--my, -200px), rgb(15 118 110 / 15%), transparent 45%), var(--x-panel);
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease); }
.x-card:hover { border-color: rgb(15 118 110 / 50%); transform: translateY(-4px); }
.x-icon { width: 2.2rem; height: 2.2rem; fill: none; stroke: var(--x-accent); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 1.3rem; display: block; }
.x-tag { position: absolute; top: 1.3rem; right: 1.3rem; font: 500 0.64rem var(--mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--x-accent-text); border: 1px solid rgb(15 118 110 / 40%); border-radius: 999px; padding: 0.2rem 0.55rem; }
.x-card h3 { font-family: var(--serif); font-weight: 400; font-size: 1.6rem; line-height: 1.12; margin: 0 0 0.6rem; }
.x-card p { margin: 0; color: var(--x-bone-2); }
.x-split { display: grid; gap: 2.5rem; }
@media (min-width: 960px) { .x-split { grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); align-items: start; } }
.x-list { list-style: none; padding: 0; margin: 0; border-top: 1px solid var(--x-line); }
.x-list li { display: grid; grid-template-columns: 3.2rem minmax(0, 1fr); gap: 1rem; padding: 1.5rem 0; border-bottom: 1px solid var(--x-line); }
.x-num { font: 500 0.85rem var(--mono); color: var(--x-accent-text); padding-top: 0.4rem; }
.x-list h3 { font-family: var(--serif); font-weight: 400; font-size: 1.75rem; margin: 0 0 0.3rem; }
.x-list p { margin: 0; }

/* How it works: a grid by default; home.js turns it into a pinned sideways scroll on wide screens */
.x-how { padding: clamp(4.5rem, 9vw, 8rem) 0; overflow: hidden; }
.x-how-head .x-title { margin-bottom: 0; }
.x-how-track { display: grid; gap: 1rem; margin-top: 2.5rem; padding-inline: max(1.25rem, calc((100% - 1120px) / 2)); }
@media (min-width: 900px) { .x-how-track { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.x-how.is-pinned .x-how-track { display: flex; width: max-content; gap: 1.5rem; }
.x-how.is-pinned .x-step { width: min(34rem, 62vw); min-height: 22rem; }
.x-step { border: 1px solid var(--x-line); border-radius: var(--radius, 12px); box-shadow: var(--shadow, 0 1px 2px rgb(15 23 42 / 6%), 0 8px 24px rgb(15 23 42 / 6%)); padding: 2rem; background: linear-gradient(160deg, #ffffff, #f1f5f9); min-height: 15rem; }
.x-step h3 { font-family: var(--serif); font-weight: 400; font-size: clamp(2rem, 3.4vw, 3rem); margin: 1.3rem 0 0.6rem; }
.x-step p { margin: 0; font-size: 1.08rem; }

/* Numbers */
.x-stats { border-block: 1px solid var(--x-line); background: var(--x-deep); padding: 3.75rem 0; }
.x-stats-row { display: grid; gap: 2rem; }
@media (min-width: 720px) { .x-stats-row { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.x-stat { font-family: var(--serif); font-size: clamp(3.4rem, 7vw, 5.5rem); line-height: 1; color: var(--x-warm); margin: 0 0 0.5rem; }

/* Panels, forms and the free check on dark */
.x-panel { border: 1px solid var(--x-line); border-radius: var(--radius, 12px); box-shadow: var(--shadow, 0 1px 2px rgb(15 23 42 / 6%), 0 8px 24px rgb(15 23 42 / 6%)); padding: clamp(1.25rem, 3vw, 2rem); background: var(--x-panel); min-width: 0; }
.home label { color: var(--x-bone); }
.home input[type='text'], .home input[type='email'], .home input[type='tel'], .home select, .home textarea {
  background: #ffffff; border-color: #cbd5e1; color: #0f172a; }
.home input::placeholder, .home textarea::placeholder { color: #64748b; }
.home input:focus, .home select:focus, .home textarea:focus, .home .btn:focus-visible, .home a:focus-visible { outline: 3px solid rgb(15 118 110 / 35%); outline-offset: 2px; }
.home .fine, .home .note { color: var(--x-bone-3); }
.home .form-msg.error { color: #b91c1c; }
.home .form-msg.ok { color: #166534; }
.home .scan-result { border-top-color: var(--x-line); }
.home .rows li { border-bottom-color: var(--x-line); }
.home .rows li span:first-child { color: var(--x-bone-3); }
.home .rows li span:last-child { color: var(--x-warm); }
.home .verdict.patched { background: #dcfce7; color: #166534; }
.home .verdict.vulnerable, .home .verdict.eol { background: #fee2e2; color: #b91c1c; }
.home .verdict.unknown { background: #fef3c7; color: #92400e; }
.home .fit { background: #f1f5f9; }
.x-news { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid var(--x-line); max-width: 32rem; }
.x-news p:not(.mono-meta) { margin: 0.4rem 0 0.8rem; }

/* Footer */
.home-footer { background: var(--x-deep); border-top: 1px solid var(--x-line); color: var(--x-bone-3); }
.home-footer a { color: var(--x-bone-2); }

/* Start states for animation (only when motion is allowed; motion-flag.js sets html.motion) */
.motion [data-hero], .motion [data-reveal], .motion [data-split], .motion .hero-title, .motion .builder { opacity: 0; }

@keyframes blink { 50% { opacity: 0; } }
@keyframes pulse { 50% { transform: scale(0.6); opacity: 0.5; } }
@keyframes shine { 60%, 100% { transform: translateX(120%); } }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee-track, .b-caret, .b-dot, .b-img::after { animation: none; }
  .x-card, .x-card:hover { transition: none; transform: none; }
}

.credit { font-size: 0.78rem; opacity: 0.75; }

/* Back-to-top on the dark surface */
.home .to-top { background: var(--x-accent); color: var(--x-ink); box-shadow: 0 10px 30px rgb(0 0 0 / 40%); }
.home .to-top:hover { background: var(--x-accent-soft); }