/* The landing page, in the app's own look: a dark window, a violet-to-blue
   accent and frosted-glass cards (see frontend/src/styles/theme.css). */

:root {
  color-scheme: dark;
  --bg: #0f0e14;
  --line: rgba(255, 255, 255, 0.08);
  --text: #f2f2f7;
  --text-2: rgba(255, 255, 255, 0.72);
  --text-3: rgba(255, 255, 255, 0.52);
  --accent-1: #7b5cff;
  --accent-2: #0a84ff;
  --accent-3: #64d2ff;
  --accent-soft: #b39dff;
  --accent: linear-gradient(90deg, var(--accent-1), var(--accent-2));
  --green: #30d158;
  --glass: linear-gradient(150deg, rgba(120, 90, 255, 0.22), rgba(30, 25, 60, 0.5));
  --glass-border: rgba(180, 160, 255, 0.22);
  --glow: 0 0 22px rgba(123, 92, 255, 0.6);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", "Helvetica Neue", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font: 16px/1.55 var(--font);
  -webkit-font-smoothing: antialiased;
  background:
    radial-gradient(1100px 600px at 10% -10%, rgba(106, 76, 240, 0.32), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(10, 132, 255, 0.16), transparent 60%),
    var(--bg);
  background-repeat: no-repeat;
}

a { color: var(--accent-soft); }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---- Top bar ---------------------------------------------------------- */

.nav { display: flex; align-items: center; gap: 14px; padding: 18px 0; }
.hero > *, .split > *, .grid > * { min-width: 0; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 650; }
.brand img { width: 30px; height: 30px; }
.nav .spacer { flex: 1; }
.nav-link { color: var(--text-2); text-decoration: none; font-size: 14px; }
.nav-link:hover { color: var(--text); }

.lang { display: flex; border: 1px solid rgba(255, 255, 255, 0.14); border-radius: 8px; overflow: hidden; }
.lang button {
  background: none; border: 0; color: var(--text-3); font: 600 12px var(--font);
  padding: 5px 9px; cursor: pointer;
}
.lang button[aria-pressed="true"] { color: var(--text); background: rgba(255, 255, 255, 0.1); }

/* The GitHub button with its star count, as on github.com. */
.star {
  display: inline-flex; align-items: stretch; border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 9px; overflow: hidden; color: var(--text); text-decoration: none; font-size: 13px; font-weight: 600;
}
.star > span { display: flex; align-items: center; gap: 7px; padding: 6px 11px; }
.star .count { border-left: 1px solid rgba(255, 255, 255, 0.2); background: rgba(255, 255, 255, 0.07); }
.star .count[hidden] { display: none; }
.star:hover { border-color: rgba(255, 255, 255, 0.4); }
.star svg { width: 16px; height: 16px; fill: currentColor; }

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

.hero { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; padding: 56px 0 72px; }
.hero h1 { font-size: clamp(34px, 5vw, 52px); line-height: 1.06; letter-spacing: -0.025em; margin: 0 0 18px; }
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent-soft), var(--accent-3));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero .lead { color: var(--text-2); font-size: 18px; margin: 0 0 28px; max-width: 32em; }

.download {
  display: inline-flex; flex-direction: column; align-items: flex-start;
  padding: 14px 24px; border-radius: 14px; color: #fff; text-decoration: none;
  background: var(--accent); box-shadow: var(--glow);
  transition: transform 0.15s, box-shadow 0.15s;
}
.download:hover { transform: translateY(-1px); box-shadow: 0 0 30px rgba(123, 92, 255, 0.8); }
.download b { font-size: 17px; }
.download small { font-size: 13px; opacity: 0.85; margin-top: 2px; }
.note { margin: 14px 0 0; color: var(--text-3); font-size: 14px; }

.window {
  border-radius: 14px; overflow: hidden; border: 1px solid var(--glass-border);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(0, 0, 0, 0.4);
  background: #121118;
}
.window img { display: block; width: 100%; height: auto; }

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

section { padding: 0 0 80px; }
section > h2 { font-size: 30px; letter-spacing: -0.015em; margin: 0 0 8px; }
section > .sub { color: var(--text-2); margin: 0 0 28px; max-width: 40em; }

.grid { display: grid; gap: 16px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }

.card { border-radius: 16px; border: 1px solid var(--glass-border); background: var(--glass); padding: 22px; }
.card h3 { font-size: 17px; margin: 0 0 6px; }
.card p { margin: 0; color: var(--text-2); font-size: 15px; }
.step {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  font-weight: 700; font-size: 14px; background: var(--accent); margin-bottom: 14px;
}

.split { display: grid; grid-template-columns: 1fr 1.3fr; gap: 48px; align-items: center; }
.split h2 { font-size: 30px; letter-spacing: -0.015em; margin: 0 0 12px; }
.split p { color: var(--text-2); margin: 0 0 12px; }

.cta {
  display: flex; align-items: center; gap: 24px; padding: 28px 32px; border-radius: 20px;
  border: 1px solid var(--glass-border); background: var(--glass);
}
.cta .big { font-size: 40px; line-height: 1; color: #ffd60a; }
.cta div { flex: 1; }
.cta h2 { margin: 0 0 4px; font-size: 22px; }
.cta p { margin: 0; color: var(--text-2); }
.cta .gh {
  display: inline-flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 12px;
  background: #fff; color: #111; font-weight: 650; text-decoration: none; white-space: nowrap;
}
.cta .gh svg { width: 18px; height: 18px; fill: currentColor; }

footer { border-top: 1px solid var(--line); padding: 24px 0 40px; color: var(--text-3); font-size: 14px; }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; }
footer a { color: var(--text-2); }

/* ---- Downloads page --------------------------------------------------- */

.page-title { padding: 40px 0 8px; }
.page-title h1 { font-size: 40px; letter-spacing: -0.02em; margin: 0 0 6px; }
.page-title p { color: var(--text-2); margin: 0; }

.systems { display: grid; gap: 16px; padding: 24px 0 24px; }
.system {
  display: grid; grid-template-columns: 56px 1fr auto; gap: 6px 20px; align-items: center;
  padding: 22px 24px; border-radius: 18px; border: 1px solid rgba(255, 255, 255, 0.1); background: rgba(255, 255, 255, 0.03);
}
.system.mine { border-color: var(--glass-border); background: var(--glass); box-shadow: 0 0 0 1px rgba(123, 92, 255, 0.25), var(--glow); }
.system .os-icon { width: 56px; height: 56px; border-radius: 14px; background: rgba(255, 255, 255, 0.08); display: grid; place-items: center; }
.system .os-icon svg { width: 28px; height: 28px; fill: var(--text); }
.system h2 { margin: 0; font-size: 20px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.tag { font-size: 12px; font-weight: 600; color: var(--accent-soft); border: 1px solid var(--glass-border); border-radius: 6px; padding: 1px 7px; }
.tag.mine-tag { color: #fff; background: var(--accent); border-color: transparent; }
.system .meta { color: var(--text-3); font-size: 14px; margin-top: 2px; }
.system .button {
  padding: 10px 18px; border-radius: 11px; color: #fff; text-decoration: none; font-weight: 600; font-size: 15px;
  background: rgba(255, 255, 255, 0.1); white-space: nowrap;
}
.system .button:hover { background: rgba(255, 255, 255, 0.16); }
.system.mine .button { background: var(--accent); box-shadow: var(--glow); }
.system ol { grid-column: 2 / 4; margin: 10px 0 0; padding-left: 20px; color: var(--text-2); font-size: 15px; }
.system ol li { margin: 3px 0; }
.system code { font: 13px ui-monospace, "SF Mono", Menlo, monospace; background: rgba(255, 255, 255, 0.08); padding: 1px 5px; border-radius: 5px; }
.system .alt { grid-column: 2 / 4; margin-top: 6px; color: var(--text-2); font-size: 15px; }
.system .alt p { margin: 0 0 6px; }
.system .alt a { color: var(--accent-soft); }
.system pre { margin: 0; padding: 10px 14px; border-radius: 10px; background: rgba(0, 0, 0, 0.35); overflow-x: auto; }
.system pre code { background: none; padding: 0; line-height: 1.6; }
.more { color: var(--text-3); font-size: 15px; margin: 0 0 64px; }

[hidden] { display: none !important; }

/* ---- Narrow screens --------------------------------------------------- */

@media (max-width: 860px) {
  .hero, .split { grid-template-columns: 1fr; gap: 32px; }
  .hero { padding-top: 28px; }
  .grid.three { grid-template-columns: 1fr; }
  .cta { flex-direction: column; align-items: flex-start; }
  .nav-link { display: none; }
  .system { grid-template-columns: 44px 1fr; }
  .system .os-icon { width: 44px; height: 44px; }
  .system .button { grid-column: 1 / 3; text-align: center; margin-top: 8px; }
  .system ol, .system .alt { grid-column: 1 / 3; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .nav { gap: 10px; }
  .star .label { display: none; }
  .brand span { display: none; }
}