/* Constelle — constelle.app */

:root {
  --bg: #04070c;
  --bg-2: #070d16;
  --panel: #0b1420;
  --panel-2: #0f1b2a;
  --text: #e9f3fb;
  --muted: #8fa9bd;
  --faint: #5d7487;
  --accent: #5ce6ff;
  --accent-2: #a882ff;
  --line: rgba(92, 230, 255, 0.22);
  --hairline: rgba(143, 169, 189, 0.16);
  --radius: 18px;
  --wrap: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
  --display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
@media (max-width: 600px) { .wrap { padding: 0 16px; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #031018; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip:focus { left: 8px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(4, 7, 12, 0.72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}
.site-header.scrolled { border-bottom-color: var(--hairline); }
.site-header .wrap { display: flex; align-items: center; gap: 28px; height: 64px; }

.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-weight: 650; font-size: 18px; letter-spacing: 0.2px; }
.brand:hover { text-decoration: none; }
.brand img { width: 30px; height: 30px; }

.nav { display: flex; gap: 26px; margin-left: auto; align-items: center; }
.nav a { color: var(--muted); font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--text); text-decoration: none; }

.nav-toggle { display: none; margin-left: auto; background: none; border: 1px solid var(--hairline); border-radius: 10px; color: var(--text); width: 40px; height: 36px; cursor: pointer; }
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { display: block; width: 16px; height: 1.5px; background: currentColor; margin: 0 auto; position: relative; content: ""; }
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }

@media (max-width: 760px) {
  .nav-toggle { display: block; }
  .nav { display: none; position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
         background: rgba(4, 7, 12, 0.97); border-bottom: 1px solid var(--hairline); padding: 8px 16px 16px; }
  .nav.open { display: flex; }
  .nav a { padding: 12px 4px; border-bottom: 1px solid var(--hairline); font-size: 16px; }
  .nav .button { margin-top: 12px; text-align: center; border-bottom: none; }
}

/* ---------- Buttons & App Store badge ---------- */

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 12px 22px; border-radius: 12px; font-weight: 600; font-size: 16px; line-height: 1.2; border: 1px solid transparent; cursor: pointer; transition: transform 0.15s, box-shadow 0.2s, background 0.2s; }
.button:hover { text-decoration: none; transform: translateY(-1px); }
.button.primary { background: var(--accent); color: #031018; box-shadow: 0 0 28px rgba(92, 230, 255, 0.32); }
.button.primary:hover { box-shadow: 0 0 40px rgba(92, 230, 255, 0.5); }
.button.ghost { border-color: var(--line); color: var(--text); background: rgba(92, 230, 255, 0.04); }
.button.small { padding: 8px 14px; font-size: 14px; border-radius: 10px; }

/* Placeholder for Apple's official "Download on the Mac App Store" badge.
   Replace the markup with the official SVG from https://tools.applemarketingtools.com before launch. */
.appstore {
  display: inline-flex; align-items: center; gap: 10px;
  height: 54px; padding: 0 20px 0 16px;
  background: #000; color: #fff;
  border: 1px solid #a6a6a6; border-radius: 12px;
  font-family: var(--display); text-align: left;
  transition: transform 0.15s, box-shadow 0.2s;
}
.appstore:hover { text-decoration: none; transform: translateY(-1px); box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.15); }
.appstore svg { width: 24px; height: 28px; flex: none; fill: #fff; }
.appstore .lines { display: flex; flex-direction: column; line-height: 1.05; }
.appstore .lines small { font-size: 11px; letter-spacing: 0.2px; }
.appstore .lines b { font-size: 20px; font-weight: 600; letter-spacing: -0.3px; }
.appstore.soon { cursor: default; }
.appstore.soon:hover { transform: none; box-shadow: none; }

.badge-note { color: var(--faint); font-size: 13px; margin-top: 12px; }

/* ---------- Sections ---------- */

section { padding: 96px 0; position: relative; }
@media (max-width: 600px) { section { padding: 64px 0; } }

.eyebrow { font: 600 12px/1 var(--mono); letter-spacing: 2px; text-transform: uppercase; color: var(--accent); margin: 0 0 16px; }
h1, h2, h3 { font-family: var(--display); letter-spacing: -0.02em; }
h2 { font-size: clamp(30px, 4.4vw, 46px); line-height: 1.1; margin: 0 0 18px; }
h3 { font-size: 20px; line-height: 1.3; margin: 0 0 8px; }
.lead { color: var(--muted); font-size: clamp(17px, 2vw, 20px); max-width: 640px; }
.center { text-align: center; }
.center .lead { margin-left: auto; margin-right: auto; }
.glow { color: var(--accent); text-shadow: 0 0 28px rgba(92, 230, 255, 0.45); }

kbd { font: 600 0.82em var(--mono); padding: 2px 7px; border-radius: 6px; border: 1px solid rgba(143, 169, 189, 0.35); background: var(--panel-2); color: var(--text); white-space: nowrap; }

/* ---------- Hero ---------- */

.hero { padding: 72px 0 40px; text-align: center; overflow: hidden; isolation: isolate; }
.hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: 0.9; }
.hero::after { content: ""; position: absolute; inset: auto 0 0 0; height: 40%; background: linear-gradient(transparent, var(--bg)); z-index: -1; pointer-events: none; }
.hero .icon { width: 96px; height: 96px; margin: 0 auto 26px; filter: drop-shadow(0 10px 40px rgba(92, 230, 255, 0.35)); }
.hero h1 { font-size: clamp(42px, 7.4vw, 80px); line-height: 1.02; margin: 0 0 22px; letter-spacing: -0.035em; }
.hero .lead { margin: 0 auto 34px; font-size: clamp(18px, 2.2vw, 22px); }
.hero .actions { display: flex; gap: 14px; justify-content: center; align-items: center; flex-wrap: wrap; }
.hero .meta { color: var(--faint); font-size: 14px; margin-top: 18px; }
.hero .meta span + span::before { content: "·"; margin: 0 10px; }

@media (prefers-reduced-motion: no-preference) {
  .glow { animation: glow 3.4s ease-in-out infinite; }
  @keyframes glow { 50% { text-shadow: 0 0 44px rgba(92, 230, 255, 0.85); } }
}

/* ---------- Screenshot frame ---------- */

.frame {
  border-radius: 16px; overflow: hidden;
  border: 1px solid var(--line);
  background: #02050a;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.65), 0 0 80px rgba(92, 230, 255, 0.08);
}
.frame img { width: 100%; }
.hero .frame { margin: 64px auto 0; max-width: 1040px; }

/* ---------- Cards & grids ---------- */

.grid { display: grid; gap: 18px; grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .grid { grid-template-columns: 1fr; } }

.card { background: linear-gradient(180deg, var(--panel-2), var(--panel)); border: 1px solid var(--hairline); border-radius: var(--radius); padding: 26px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .k { font: 600 11px/1 var(--mono); letter-spacing: 1.6px; color: var(--accent); margin-bottom: 14px; display: block; }
.card .ico { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: rgba(92, 230, 255, 0.08); border: 1px solid var(--line); margin-bottom: 16px; }
.card .ico svg { width: 20px; height: 20px; stroke: var(--accent); fill: none; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- Feature rows ---------- */

.feature { display: grid; grid-template-columns: 1fr 1.35fr; gap: 56px; align-items: center; }
.feature + .feature { margin-top: 110px; }
.feature.flip > :first-child { order: 2; }
.feature ul { list-style: none; padding: 0; margin: 22px 0 0; display: grid; gap: 10px; }
.feature li { position: relative; padding-left: 26px; color: var(--muted); font-size: 16px; }
.feature li::before { content: ""; position: absolute; left: 2px; top: 9px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
@media (max-width: 860px) {
  .feature { grid-template-columns: 1fr; gap: 32px; }
  .feature.flip > :first-child { order: 0; }
  .feature + .feature { margin-top: 80px; }
}

/* ---------- Gallery ---------- */

.tabs { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; margin: 0 0 28px; }
.tabs button { background: transparent; border: 1px solid var(--hairline); color: var(--muted); padding: 8px 16px; border-radius: 999px; font: 500 14px var(--font); cursor: pointer; }
.tabs button[aria-selected="true"] { color: #031018; background: var(--accent); border-color: var(--accent); }
.gallery .frame { max-width: 1040px; margin: 0 auto; }
.gallery figcaption { text-align: center; color: var(--muted); font-size: 15px; margin-top: 18px; min-height: 1.6em; }

/* ---------- Privacy band ---------- */

.band { background: radial-gradient(1200px 400px at 50% 0%, rgba(92, 230, 255, 0.07), transparent 70%), var(--bg-2); border-top: 1px solid var(--hairline); border-bottom: 1px solid var(--hairline); }
.checks { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px 40px; margin-top: 36px; }
@media (max-width: 700px) { .checks { grid-template-columns: 1fr; } }
.checks div { position: relative; padding-left: 34px; color: var(--muted); }
.checks div strong { color: var(--text); display: block; font-weight: 600; }
.checks div::before { content: "✓"; position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%; background: rgba(92, 230, 255, 0.12); color: var(--accent); font-size: 13px; display: grid; place-items: center; border: 1px solid var(--line); }

/* ---------- Stats ---------- */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 48px; }
@media (max-width: 760px) { .stats { grid-template-columns: repeat(2, 1fr); } }
.stat { text-align: center; padding: 22px 10px; border: 1px solid var(--hairline); border-radius: var(--radius); background: var(--panel); }
.stat b { display: block; font: 650 30px/1.1 var(--display); color: var(--text); }
.stat span { color: var(--muted); font-size: 14px; }

/* ---------- Shortcuts table ---------- */

.keys { width: 100%; border-collapse: collapse; margin-top: 28px; font-size: 16px; }
.keys td { padding: 14px 4px; border-bottom: 1px solid var(--hairline); vertical-align: top; }
.keys td:first-child { width: 190px; white-space: nowrap; }
.keys td:last-child { color: var(--muted); }
@media (max-width: 600px) { .keys td:first-child { width: auto; } }

/* ---------- Themes ---------- */

.themes { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.theme { display: flex; align-items: center; gap: 10px; padding: 8px 14px 8px 8px; border: 1px solid var(--hairline); border-radius: 999px; font-size: 14px; color: var(--muted); }
.theme i { width: 22px; height: 22px; border-radius: 50%; display: block; box-shadow: 0 0 14px currentColor; }

/* ---------- FAQ ---------- */

.faq { max-width: 820px; margin: 36px auto 0; }
.faq details { border-bottom: 1px solid var(--hairline); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; padding: 18px 36px 18px 0; font-weight: 600; font-size: 17px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font-size: 24px; font-weight: 300; color: var(--accent); transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 18px; color: var(--muted); }

/* ---------- CTA ---------- */

.cta-box { text-align: center; border: 1px solid var(--line); border-radius: 28px; padding: 72px 24px;
  background: radial-gradient(700px 300px at 50% 0%, rgba(92, 230, 255, 0.14), transparent 70%), radial-gradient(600px 260px at 80% 100%, rgba(168, 130, 255, 0.12), transparent 70%), var(--panel); }
.cta-box img { width: 72px; height: 72px; margin: 0 auto 22px; }
.cta-box .lead { margin: 0 auto 30px; }
@media (max-width: 600px) { .cta-box { padding: 52px 20px; border-radius: 22px; } }

/* ---------- Legal pages ---------- */

.page-head { padding: 72px 0 24px; }
.page-head h1 { font-size: clamp(36px, 5.4vw, 56px); line-height: 1.05; margin: 0 0 12px; }
.page-head .updated { color: var(--faint); font-size: 14px; margin: 0; }
.prose { max-width: 760px; padding-bottom: 96px; }
.prose h2 { font-size: 24px; margin: 44px 0 12px; }
.prose h3 { font-size: 18px; margin: 28px 0 8px; }
.prose p, .prose li { color: var(--muted); }
.prose strong { color: var(--text); }
.prose ul { padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose .summary { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; color: var(--text); font-size: 18px; }
.prose .toc { border-left: 2px solid var(--line); padding: 4px 0 4px 18px; margin: 28px 0; }
.prose .toc a { display: block; color: var(--muted); padding: 3px 0; font-size: 15px; }
.prose .toc a:hover { color: var(--text); }

/* ---------- Support ---------- */

.contact { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 40px; }
@media (max-width: 860px) { .contact { grid-template-columns: 1fr; } }

/* ---------- Footer ---------- */

.site-footer { border-top: 1px solid var(--hairline); padding: 56px 0 40px; color: var(--muted); font-size: 14px; }
.site-footer .cols { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .site-footer .cols { grid-template-columns: 1fr 1fr; } .site-footer .about { grid-column: 1 / -1; } }
.site-footer h4 { color: var(--text); font-size: 13px; margin: 0 0 14px; font-weight: 600; letter-spacing: 0.3px; }
.site-footer a { color: var(--muted); display: block; padding: 3px 0; }
.site-footer a:hover { color: var(--text); text-decoration: none; }
.site-footer .about p { margin: 12px 0 0; max-width: 320px; }
.site-footer .legal { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--hairline); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--faint); font-size: 13px; }

/* ---------- 404 ---------- */

.lost { min-height: 70vh; display: grid; place-items: center; text-align: center; padding: 80px 0; }
.lost h1 { font-size: clamp(64px, 12vw, 140px); margin: 0; line-height: 1; }

/* ---------- Reveal on scroll ---------- */

@media (prefers-reduced-motion: no-preference) {
  .js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
  .js .reveal.in { opacity: 1; transform: none; }
}

code { font: 0.9em var(--mono); color: var(--text); overflow-wrap: anywhere; }