/* nxtconvert website. Colours, type and radii come from the app's design system (tokens.json). */

@font-face { font-family: "Geist"; src: url("fonts/geist.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("fonts/geist-mono.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  color-scheme: dark light;
  --font-sans: "Geist", system-ui, -apple-system, "Segoe UI", Ubuntu, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --bg-000: #0f1012; --bg-100: #17181b; --bg-200: #1f2024; --bg-300: #2a2c31;
  --line: #2a2c31; --line-strong: #6a6e77;
  --ink: #f2f2ef; --ink-muted: #a3a5ab;
  --accent: #d4ff3a; --accent-hover: #e2ff73; --on-accent: #141518; --accent-ink: #d4ff3a;
  --kind-image: #7cc4ff; --kind-image-bg: rgba(124,196,255,0.14);
  --kind-video: #ff8a6b; --kind-video-bg: rgba(255,138,107,0.14);
  --kind-audio: #c4a8ff; --kind-audio-bg: rgba(196,168,255,0.14);
  --kind-doc: #ffc95c; --kind-doc-bg: rgba(255,201,92,0.14);
  --radius-sm: 4px; --radius-md: 6px; --radius-lg: 8px; --radius-xl: 12px;
  --shadow-window: 0 24px 64px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.06);
  --page: 1080px;
}
@media (prefers-color-scheme: light) {
  :root {
    --bg-000: #f4f4f1; --bg-100: #ffffff; --bg-200: #ecece8; --bg-300: #e2e2dd;
    --line: #e2e2dd; --line-strong: #7f8288;
    --ink: #141518; --ink-muted: #5d6066;
    --accent-hover: #c4f01f; --accent-ink: #4a6800;
    --kind-image: #0b5fa3; --kind-image-bg: #e4f0fa;
    --kind-video: #a8380f; --kind-video-bg: #fbe9e2;
    --kind-audio: #6a3fc4; --kind-audio-bg: #efe8fb;
    --kind-doc: #865600; --kind-doc-bg: #f8eedb;
    --shadow-window: 0 24px 64px rgba(20,21,24,0.16), 0 0 0 1px rgba(20,21,24,0.08);
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg-000); color: var(--ink); font: 400 16px/1.6 var(--font-sans); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 2px; border-radius: var(--radius-sm); }
.wrap { max-width: var(--page); margin: 0 auto; padding: 0 16px; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; z-index: 10; background: var(--bg-100); padding: 8px 12px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 5; background: color-mix(in srgb, var(--bg-000) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 24px; height: 60px; }
.brand { display: flex; align-items: center; gap: 8px; text-decoration: none; font: 600 17px/1 var(--font-sans); letter-spacing: -0.02em; }
.brand svg { color: var(--ink); }
.brand span { color: var(--ink-muted); font-weight: 500; }
.site-nav { display: flex; gap: 20px; margin-left: auto; font-size: 14px; }
.site-nav a { color: var(--ink-muted); text-decoration: none; }
.site-nav a:hover { color: var(--ink); }
@media (max-width: 720px) { .site-nav { display: none; } .site-header .btn { margin-left: auto; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: var(--radius-md); border: 1px solid var(--line-strong); background: var(--bg-100); color: var(--ink); font: 550 14px/1 var(--font-sans); text-decoration: none; white-space: nowrap; transition: background .12s; }
.btn:hover { background: var(--bg-200); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn-primary:hover { background: var(--accent-hover); }
.btn-sm { height: 32px; padding: 0 12px; font-size: 13px; }
.dl { display: flex; flex-wrap: wrap; gap: 8px; }

/* Hero */
.hero { padding: 72px 0 40px; text-align: center; }
.hero h1 { margin: 0 auto 16px; max-width: 16ch; font: 650 clamp(36px, 6vw, 60px)/1.04 var(--font-sans); letter-spacing: -0.035em; }
.hero h1 em { font-style: normal; color: var(--accent-ink); }
.lede { margin: 0 auto 28px; max-width: 56ch; font-size: 18px; color: var(--ink-muted); }
.hero .dl { justify-content: center; }
.facts { margin: 20px 0 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 6px 18px; color: var(--ink-muted); font-size: 14px; }
.facts b { color: var(--ink); font: 600 14px/1 var(--font-mono); font-variant-numeric: tabular-nums; }
.shot { margin: 48px auto 0; max-width: 960px; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-window); }
.shot-light { display: none; }
@media (prefers-color-scheme: light) { .shot-dark { display: none; } .shot-light { display: block; } }

/* Sections */
section { padding: 64px 0; border-top: 1px solid var(--line); }
section > .wrap > h2, .page h2 { margin: 0 0 8px; font: 650 30px/1.15 var(--font-sans); letter-spacing: -0.025em; }
.sub { margin: 0 0 32px; color: var(--ink-muted); max-width: 60ch; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .grid-3 { grid-template-columns: 1fr; } }
.card { padding: 20px; background: var(--bg-100); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.card h3 { margin: 12px 0 6px; font: 600 16px/1.3 var(--font-sans); }
.card p { margin: 0; color: var(--ink-muted); font-size: 15px; }
.card svg { color: var(--accent-ink); }

/* Formats */
.kind-head { display: flex; align-items: center; gap: 8px; margin: 0 0 12px; font: 600 15px/1 var(--font-sans); }
.badges { display: flex; flex-wrap: wrap; gap: 6px; }
.badge { display: inline-flex; align-items: center; justify-content: center; min-width: 44px; height: 24px; padding: 0 8px; border-radius: var(--radius-sm); font: 600 11px/1 var(--font-mono); letter-spacing: .04em; text-transform: uppercase; text-decoration: none; }
.k-image { color: var(--kind-image); background: var(--kind-image-bg); }
.k-video { color: var(--kind-video); background: var(--kind-video-bg); }
.k-audio { color: var(--kind-audio); background: var(--kind-audio-bg); }
.k-doc { color: var(--kind-doc); background: var(--kind-doc-bg); }
.pairs { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); margin: 0; padding: 0; list-style: none; }
.pairs a { display: flex; align-items: center; gap: 8px; padding: 10px 12px; background: var(--bg-100); border: 1px solid var(--line); border-radius: var(--radius-lg); text-decoration: none; font-size: 14px; }
.pairs a:hover { background: var(--bg-200); }
.pairs .arrow { color: var(--ink-muted); }
.more { margin: 20px 0 0; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); margin: 0; padding: 0; list-style: none; }
.steps li { counter-increment: step; padding: 20px; background: var(--bg-100); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.steps li::before { content: counter(step); display: grid; place-items: center; width: 28px; height: 28px; margin-bottom: 12px; border-radius: 999px; background: var(--bg-300); font: 600 13px/1 var(--font-mono); }
.steps b { display: block; margin-bottom: 4px; }
.steps span { color: var(--ink-muted); font-size: 15px; }

/* Download table */
.downloads { width: 100%; border-collapse: collapse; font-size: 15px; }
.downloads th, .downloads td { padding: 14px 12px; text-align: left; border-bottom: 1px solid var(--line); }
.downloads th { font: 500 12px/1 var(--font-sans); color: var(--ink-muted); text-transform: uppercase; letter-spacing: .06em; }
.downloads td:last-child { text-align: right; }
.downloads .muted { color: var(--ink-muted); }
.downloads .num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
@media (max-width: 640px) { .downloads .hide-sm { display: none; } }
.fineprint { margin: 16px 0 0; font-size: 14px; color: var(--ink-muted); }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; padding: 18px 0; font: 600 17px/1.35 var(--font-sans); list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--ink-muted); font: 400 22px/1 var(--font-mono); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 20px; color: var(--ink-muted); max-width: 70ch; }

/* Developer */
.dev { display: grid; grid-template-columns: 96px 1fr; gap: 24px; align-items: start; }
.dev img { width: 96px; height: 96px; border-radius: 999px; background: var(--bg-200); }
.dev h3 { margin: 0 0 4px; font: 600 20px/1.3 var(--font-sans); }
.dev p { margin: 0 0 16px; color: var(--ink-muted); max-width: 60ch; }
.dev .links { display: flex; flex-wrap: wrap; gap: 8px; }
.credits { margin-top: 32px; font-size: 14px; color: var(--ink-muted); }
.credits a { color: var(--ink-muted); }
@media (max-width: 560px) { .dev { grid-template-columns: 1fr; } }

/* Landing pages */
.crumbs { margin: 32px 0 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 6px; font-size: 14px; color: var(--ink-muted); }
.crumbs li + li::before { content: "›"; margin-right: 6px; }
.crumbs a { color: var(--ink-muted); text-decoration: none; }
.page .hero { text-align: left; padding: 24px 0 32px; }
.page .hero h1 { margin-left: 0; max-width: 20ch; font-size: clamp(32px, 5vw, 48px); }
.page .hero .lede { margin-left: 0; }
.page .hero .dl { justify-content: flex-start; }
.page .hero .facts { justify-content: flex-start; }
.convert-badges { display: flex; align-items: center; gap: 10px; margin-bottom: 20px; }
.convert-badges .badge { height: 32px; min-width: 64px; font-size: 13px; }
.prose { max-width: 70ch; }
.prose p { color: var(--ink-muted); }
.prose h2 { margin-top: 40px; }

/* Footer */
.site-footer { padding: 32px 0 48px; border-top: 1px solid var(--line); color: var(--ink-muted); font-size: 14px; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 16px; }
.site-footer a { color: var(--ink-muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }
.prose .steps { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 560px) { .prose .steps { grid-template-columns: 1fr; } }