/* Notesidian marketing site — shared styles. Theme-aware (light/dark), responsive, no external deps. */

:root {
  color-scheme: light dark;
  --bg:        #ffffff;
  --bg-soft:   #f6f5fb;
  --bg-sunken: #efedf7;
  --card:      #ffffff;
  --fg:        #1b1830;
  --muted:     #5d5872;
  --border:    rgba(24, 18, 52, 0.10);
  --border-strong: rgba(24, 18, 52, 0.16);
  --accent:    #7c3aed;
  --accent-ink:#6d28d9;
  --accent-soft: rgba(124, 58, 237, 0.10);
  --code-bg:   #f1eefb;
  --code-fg:   #7c3aed;
  --shadow:    0 18px 50px -24px rgba(38, 20, 80, 0.42);
  --shadow-sm: 0 2px 10px -4px rgba(38, 20, 80, 0.28);
  --radius:    16px;
  --radius-sm: 10px;
  --maxw:      1080px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg:        #0e0c16;
    --bg-soft:   #14111f;
    --bg-sunken: #1a1626;
    --card:      #181425;
    --fg:        #ece9f6;
    --muted:     #a49dbb;
    --border:    rgba(255, 255, 255, 0.10);
    --border-strong: rgba(255, 255, 255, 0.16);
    --accent:    #a78bfa;
    --accent-ink:#c4b5fd;
    --accent-soft: rgba(167, 139, 250, 0.14);
    --code-bg:   rgba(167, 139, 250, 0.14);
    --code-fg:   #c4b5fd;
    --shadow:    0 24px 60px -28px rgba(0, 0, 0, 0.75);
    --shadow-sm: 0 2px 12px -4px rgba(0, 0, 0, 0.6);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--fg);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

h1, h2, h3 { line-height: 1.15; letter-spacing: -0.02em; margin: 0 0 0.5em; }

code, kbd { font-family: var(--mono); }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* ---------- top nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg); /* fallback for engines without color-mix */
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.6) blur(14px);
  backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav .wrap { display: flex; align-items: center; gap: 18px; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; letter-spacing: -0.02em; color: var(--fg); font-size: 1.05rem; }
.brand:hover { text-decoration: none; }
.brand img { width: 28px; height: 28px; border-radius: 7px; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.nav-links a { color: var(--muted); font-weight: 550; font-size: 0.94rem; padding: 7px 11px; border-radius: 9px; }
.nav-links a:hover { color: var(--fg); background: var(--accent-soft); text-decoration: none; }
.nav-links a.cta { color: #fff; background: var(--accent); }
.nav-links a.cta:hover { background: var(--accent-ink); color: #fff; }
@media (prefers-color-scheme: dark) { .nav-links a.cta { color: #17111f; } }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 12px; font-weight: 650; font-size: 0.98rem;
  border: 1px solid transparent; cursor: pointer; transition: transform .12s ease, background .15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--accent-ink); color: #fff; }
@media (prefers-color-scheme: dark) { .btn-primary { color: #17111f; } .btn-primary:hover { color: #17111f; } }
.btn-ghost { background: var(--card); color: var(--fg); border-color: var(--border-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-ink); }

/* ---------- generic sections ---------- */
section { padding: 72px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 44px; }
.section-head h2 { font-size: clamp(1.6rem, 3.4vw, 2.2rem); }
.section-head p { color: var(--muted); font-size: 1.06rem; margin: 0; }
.eyebrow {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.09em;
  text-transform: uppercase; color: var(--accent-ink); margin-bottom: 12px;
}

/* ---------- hero ---------- */
.hero { position: relative; overflow: hidden; padding: 64px 0 40px; }
.hero::before {
  content: ""; position: absolute; inset: -30% 0 auto; height: 620px; z-index: -1;
  background:
    radial-gradient(60% 60% at 72% 12%, var(--accent-soft), transparent 70%),
    radial-gradient(50% 50% at 12% 0%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 68%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(2.1rem, 5vw, 3.35rem); }
.hero .lede { font-size: 1.18rem; color: var(--muted); margin: 0 0 28px; max-width: 34ch; }
.hero-badges { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px; font-size: 0.82rem; font-weight: 600;
  color: var(--muted); background: var(--bg-soft); border: 1px solid var(--border);
  padding: 5px 11px; border-radius: 999px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 14px; }
.hero-note { font-size: 0.9rem; color: var(--muted); }
.hero-shot { position: relative; }
.hero-shot img {
  width: 100%; border-radius: 18px; border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

/* ---------- "new in 1.1" band ---------- */
.band { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.new-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.new-item { display: flex; gap: 12px; align-items: flex-start; }
.new-item .ico { font-size: 1.3rem; line-height: 1.3; flex: none; width: 1.6em; text-align: center; }
.new-item h3 { font-size: 1rem; margin: 0 0 2px; }
.new-item p { margin: 0; color: var(--muted); font-size: 0.93rem; line-height: 1.5; }
.band .changelog-link { text-align: center; margin-top: 36px; }

/* ---------- feature grid ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 24px; transition: transform .14s ease, border-color .14s ease, box-shadow .14s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.card .ico {
  display: inline-flex; align-items: center; justify-content: center; width: 46px; height: 46px;
  font-size: 1.5rem; border-radius: 12px; background: var(--accent-soft); margin-bottom: 14px;
}
.card h3 { font-size: 1.12rem; margin: 0 0 6px; }
.card p { margin: 0; color: var(--muted); font-size: 0.96rem; }
.card p strong { color: var(--fg); font-weight: 650; }

/* ---------- showcase gallery ---------- */
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.shot { border-radius: 16px; overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); background: var(--bg-sunken); }
.shot img { width: 100%; }
.shot.wide { grid-column: 1 / -1; }

/* ---------- keyboard shortcuts ---------- */
.shortcuts { max-width: 720px; margin: 0 auto; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.shortcuts .row { display: flex; align-items: center; gap: 16px; padding: 14px 20px; border-top: 1px solid var(--border); }
.shortcuts .row:first-child { border-top: none; }
.shortcuts .row:nth-child(odd) { background: var(--bg-soft); }
.shortcuts .keys { flex: none; min-width: 168px; display: flex; gap: 6px; flex-wrap: wrap; }
.shortcuts .desc { color: var(--muted); }
kbd {
  display: inline-block; padding: 3px 8px; font-size: 0.82rem; font-weight: 600; color: var(--fg);
  background: var(--card); border: 1px solid var(--border-strong); border-bottom-width: 2px;
  border-radius: 7px; line-height: 1.3; white-space: nowrap;
}

/* ---------- privacy strip ---------- */
.privacy-strip { background: var(--bg-soft); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.privacy-strip .wrap { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; justify-content: center; text-align: center; }
.privacy-strip .lock { font-size: 2.4rem; }
.privacy-strip h2 { margin: 0 0 6px; }
.privacy-strip p { margin: 0; color: var(--muted); max-width: 60ch; }

/* ---------- CTA / get it ---------- */
.get { text-align: center; }
.get .box {
  max-width: 640px; margin: 0 auto; padding: 44px 32px; border-radius: 22px;
  border: 1px solid var(--border); background:
    linear-gradient(180deg, var(--accent-soft), transparent 90%), var(--card); box-shadow: var(--shadow-sm);
}
.get h2 { font-size: clamp(1.7rem, 3.6vw, 2.3rem); }
.get p { color: var(--muted); margin: 0 auto 22px; max-width: 46ch; }
.req { color: var(--muted); font-size: 0.9rem; margin-top: 18px; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 40px 0; color: var(--muted); }
.footer .wrap { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; justify-content: space-between; }
.footer .foot-links { display: flex; flex-wrap: wrap; gap: 16px; }
.footer a { color: var(--muted); font-size: 0.92rem; }
.footer a:hover { color: var(--fg); }
.footer .copy { font-size: 0.88rem; }

/* ---------- prose (changelog / privacy / licenses) ---------- */
.page-head { padding: 56px 0 8px; }
.page-head .eyebrow { display: block; }
.page-head h1 { font-size: clamp(2rem, 4.6vw, 2.9rem); }
.page-head p { color: var(--muted); font-size: 1.08rem; max-width: 62ch; margin: 0; }
.prose { padding: 30px 0 72px; }
.prose .wrap { max-width: 820px; }
.prose h2 { font-size: 1.5rem; margin: 40px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.prose h3 { font-size: 1.12rem; margin: 26px 0 10px; }
.prose p { color: var(--fg); }
.prose ul { padding-left: 1.25em; margin: 0 0 18px; }
.prose li { margin: 8px 0; }
.prose li strong { color: var(--fg); }
.prose a { color: var(--accent-ink); font-weight: 550; }
.prose code {
  font-family: var(--mono); font-size: 0.88em; background: var(--code-bg); color: var(--code-fg);
  padding: 2px 6px; border-radius: 6px;
}
.prose pre {
  background: var(--bg-sunken); border: 1px solid var(--border); border-radius: 12px;
  padding: 18px 20px; overflow-x: auto; font-size: 0.85rem; line-height: 1.55;
}
.prose pre code { background: none; color: var(--fg); padding: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 6px 0 24px; font-size: 0.92rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); white-space: nowrap; }
.prose th { color: var(--muted); font-weight: 650; }
.prose td code { white-space: nowrap; }
.muted { color: var(--muted); }

/* version blocks on the changelog */
.release { margin: 0 0 12px; }
.release-tag {
  display: inline-flex; align-items: baseline; gap: 12px; margin: 46px 0 4px; flex-wrap: wrap;
}
.release-tag .ver {
  font-size: 1.6rem; font-weight: 750; letter-spacing: -0.02em; color: var(--fg);
}
.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px; background: var(--accent-soft); color: var(--accent-ink);
  border: 1px solid var(--border);
}
.badge.gray { background: var(--bg-sunken); color: var(--muted); }
.grouptag {
  display: inline-flex; align-items: center; gap: 8px; font-size: 1.08rem; font-weight: 700;
  margin: 26px 0 6px;
}
.grouptag .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); }
.grouptag.added .dot { background: #22a06b; }
.grouptag.changed .dot { background: #d99a0b; }
.grouptag.fixed .dot { background: #e5484d; }
.grouptag.build .dot { background: #6b7280; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 34px; }
  .hero .lede { max-width: none; }
  .hero-shot { max-width: 460px; margin: 0 auto; }
  .new-grid { grid-template-columns: 1fr 1fr; }
  .features { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  section { padding: 54px 0; }
  .new-grid, .features, .shots { grid-template-columns: 1fr; }
  .nav-links a:not(.cta) { display: none; }
  .shortcuts .keys { min-width: 128px; }
  .footer .wrap { justify-content: center; text-align: center; }
}

/* respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}