/* KeyOverlay GitHub Pages — shared styles */

:root {
  --bg: #14141c;
  --bg-soft: #1b1b26;
  --card: #22222f;
  --card-border: #34344a;
  --text: #e8e8f2;
  --text-body: #b4b4c8;
  --text-muted: #7c7c96;
  --accent: #7a47ff;
  --accent-soft: #9a73ff;
  --green: #64dc64;
  --blue: #50a0ff;
  --red: #f03c3c;
  --yellow: #ffd23c;
  --radius: 14px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text-body);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
  line-height: 1.65;
  font-size: 16px;
}

a {
  color: var(--accent-soft);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

code {
  background: var(--bg-soft);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 0.15em 0.45em;
  font-family: ui-monospace, "Cascadia Code", "Segoe UI Mono", Consolas,
    monospace;
  font-size: 0.9em;
  color: var(--text);
}

pre {
  background: #101018;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 16px 20px;
  overflow-x: auto;
  margin: 14px 0;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  color: #cdd6ff;
}

/* ── Layout ── */

.wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Nav ── */

nav {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(20, 20, 28, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--card-border);
}

nav .wrap {
  display: flex;
  align-items: center;
  gap: 22px;
  height: 58px;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand:hover {
  text-decoration: none;
}

.brand .logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 800;
}

nav .links {
  margin-left: auto;
  display: flex;
  gap: 18px;
  align-items: center;
}

nav .links a {
  color: var(--text-body);
  font-size: 0.95rem;
}

nav .links a.active {
  color: var(--text);
  font-weight: 600;
}

nav .links a.gh {
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 6px 14px;
  color: var(--text);
}

nav .links a.gh:hover {
  border-color: var(--accent);
  text-decoration: none;
}

/* ── Hero ── */

header.hero {
  padding: 84px 0 60px;
  text-align: center;
  background: radial-gradient(
    ellipse 70% 55% at 50% -10%,
    rgba(122, 71, 255, 0.28),
    transparent
  );
}

.hero h1 {
  color: var(--text);
  font-size: clamp(2rem, 5vw, 3.1rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 26px 0 18px;
}

.hero h1 .hl {
  color: var(--accent-soft);
}

.hero p.tagline {
  max-width: 620px;
  margin: 0 auto 30px;
  font-size: 1.15rem;
}

.badges {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.badge {
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 5px 14px;
  color: var(--text-muted);
  background: var(--bg-soft);
}

.badge.mit {
  color: var(--green);
  border-color: rgba(100, 220, 100, 0.35);
}

/* Demo key pills in the hero */

.pill-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 34px 0 6px;
}

.pill {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  border-radius: 16px;
  padding: 14px 26px;
  box-shadow: 0 6px 24px rgba(122, 71, 255, 0.35);
}

.pill.dim {
  background: #3a3a52;
  box-shadow: none;
}

.cta-row {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 34px;
}

.btn {
  display: inline-block;
  border-radius: 10px;
  padding: 12px 26px;
  font-weight: 600;
  font-size: 1rem;
}

.btn.primary {
  background: var(--accent);
  color: #fff;
}

.btn.primary:hover {
  background: var(--accent-soft);
  text-decoration: none;
}

.btn.secondary {
  border: 1px solid var(--card-border);
  color: var(--text);
  background: var(--bg-soft);
}

.btn.secondary:hover {
  border-color: var(--accent);
  text-decoration: none;
}

/* ── Sections ── */

section {
  padding: 56px 0;
}

section.alt {
  background: var(--bg-soft);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
}

h2 {
  color: var(--text);
  font-size: 1.7rem;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.section-sub {
  color: var(--text-muted);
  margin-bottom: 34px;
  max-width: 640px;
}

h3 {
  color: var(--text);
  font-size: 1.12rem;
  margin: 26px 0 8px;
}

/* ── Cards ── */

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 18px;
}

/* Two balanced columns for four-card sections (avoids a 3+1 orphan row). */
.grid.cols-2 {
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 22px;
}

.card .icon {
  font-size: 1.5rem;
  display: block;
  margin-bottom: 10px;
}

.card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.card p {
  font-size: 0.95rem;
}

/* ── Use-case list ── */

ul.checks {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 10px 26px;
}

ul.checks li {
  padding-left: 30px;
  position: relative;
}

ul.checks li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: 700;
}

/* Cursor theme dots */

.theme-dots {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.tdot {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.tdot .dot {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  margin: 0 auto 8px;
}

.dot.ring-green {
  border: 4px solid var(--green);
}

.dot.ring-blue {
  border: 4px solid var(--blue);
  box-shadow: 0 0 14px rgba(80, 160, 255, 0.7);
}

.dot.fill-red {
  background: var(--red);
}

.dot.ring-yellow {
  border: 4px solid var(--yellow);
  box-shadow: 0 0 10px rgba(255, 210, 60, 0.45);
}

.dot.ring-purple {
  border: 4px solid #b464ff;
  box-shadow: 0 0 16px rgba(180, 100, 255, 0.75);
}

.dot.fill-white {
  background: #f0f0f0;
}

/* ── How-to page ── */

.doc {
  padding: 48px 0 72px;
}

.doc h1 {
  color: var(--text);
  font-size: 2.1rem;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.doc .lede {
  color: var(--text-muted);
  margin-bottom: 36px;
}

.doc h2 {
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid var(--card-border);
  font-size: 1.45rem;
}

.doc p,
.doc li {
  max-width: 76ch;
}

.doc ul,
.doc ol {
  margin: 10px 0 16px 24px;
}

.doc li {
  margin-bottom: 6px;
}

.doc table {
  border-collapse: collapse;
  margin: 16px 0;
  width: 100%;
  font-size: 0.95rem;
}

.doc th,
.doc td {
  border: 1px solid var(--card-border);
  padding: 9px 14px;
  text-align: left;
  vertical-align: top;
}

.doc th {
  background: var(--bg-soft);
  color: var(--text);
}

.note {
  background: rgba(122, 71, 255, 0.1);
  border: 1px solid rgba(122, 71, 255, 0.35);
  border-radius: 10px;
  padding: 14px 18px;
  margin: 16px 0;
  font-size: 0.95rem;
}

.note strong {
  color: var(--text);
}

kbd {
  background: var(--accent);
  color: #fff;
  border-radius: 6px;
  padding: 2px 9px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85em;
}

/* Table of contents */

.toc {
  background: var(--card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 18px 22px;
  margin-bottom: 10px;
}

.toc strong {
  color: var(--text);
  display: block;
  margin-bottom: 8px;
}

.toc ol {
  margin: 0 0 0 22px;
}

/* ── Footer ── */

footer {
  border-top: 1px solid var(--card-border);
  padding: 34px 0 44px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

footer a {
  color: var(--text-body);
}