/* ─── Variables ─────────────────────────────────────────────────────────── */
:root {
  --bg:          #080c12;
  --surface:     #0d1119;
  --surface2:    #121824;
  --border:      #1c2436;
  --border2:     #273044;
  --accent:      #508cff;
  --accent-dim:  rgba(80, 140, 255, 0.12);
  --accent-glow: rgba(80, 140, 255, 0.06);
  --text:        #8a97ae;
  --text-mid:    #b0bcce;
  --text-bright: #dde4f0;
  --muted:       #48556a;
  --code-fg:     #7ecfa0;
  --tag-fg:      #6fa8ff;
}

/* ─── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-font-smoothing: antialiased; }

/* ─── Body ──────────────────────────────────────────────────────────────── */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  background-image:
    radial-gradient(ellipse 70% 40% at 50% -10%, rgba(80, 140, 255, 0.07) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 100% 80%, rgba(80, 100, 255, 0.04) 0%, transparent 50%);
  background-attachment: fixed;
}

/* ─── Layout ────────────────────────────────────────────────────────────── */
.container {
  max-width: 780px;
  margin: 0 auto;
  padding: 52px 28px 140px;
}

/* ─── Header ────────────────────────────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 44px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.site-header-inner { display: flex; flex-direction: column; gap: 10px; }

/* ─── Typography ─────────────────────────────────────────────────────────── */
h1 {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: -0.025em;
  line-height: 1.15;
}

h1 .brand { color: var(--accent); }
h1 .sep   { color: var(--muted); font-weight: 400; margin: 0 6px; }

h2 {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin: 38px 0 14px;
}

p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.75;
  margin-bottom: 12px;
}

/* ─── Tag / Badge ───────────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 10.5px;
  background: var(--accent-dim);
  color: var(--tag-fg);
  border: 1px solid rgba(80, 140, 255, 0.2);
  padding: 4px 11px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.tag::before { content: '◆'; font-size: 7px; opacity: 0.7; }

/* ─── Links ─────────────────────────────────────────────────────────────── */
a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(80, 140, 255, 0.22);
  transition: color 0.18s, border-color 0.18s;
}

a:hover {
  color: #90bfff;
  border-bottom-color: rgba(80, 140, 255, 0.6);
}

/* ─── Lists ─────────────────────────────────────────────────────────────── */
ul {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
}

ul li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.875rem;
  color: var(--text-mid);
  line-height: 1.55;
}

ul li:last-child { border-bottom: none; }

ul li::before {
  content: '→';
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 0.7rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

/* ─── Demo card list (index) ─────────────────────────────────────────────── */
.demo-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.demo-list li {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px 20px;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  cursor: pointer;
}

.demo-list li:hover {
  border-color: rgba(80, 140, 255, 0.3);
  background: var(--surface2);
  transform: translateY(-1px);
}

.demo-list li::before { display: none; }

.demo-list a {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-bright);
  display: block;
  margin-bottom: 4px;
  border-bottom: none;
}

.demo-list li:hover a { color: #90bfff; }

.demo-list .desc {
  font-size: 0.8rem;
  color: var(--muted);
  display: block;
  border-bottom: none;
}

/* ─── Action link (reopen) ───────────────────────────────────────────────── */
.action-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  border: 1px solid var(--border2);
  padding: 8px 18px;
  border-radius: 100px;
  margin: 4px 0 24px;
  transition: color 0.18s, border-color 0.18s, background 0.18s;
  /* button reset */
  background: transparent;
  cursor: pointer;
  text-decoration: none;
}

.action-link:hover {
  color: var(--accent);
  border-color: rgba(80, 140, 255, 0.4);
  background: var(--accent-dim);
}

/* ─── Output box ─────────────────────────────────────────────────────────── */
#output {
  margin-top: 24px;
  min-height: 54px;
  padding: 14px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 8px;
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 12px;
  color: var(--accent);
  line-height: 1.85;
  display: none;
}

#output:not(:empty) { display: block; }

/* ─── Code ───────────────────────────────────────────────────────────────── */
code {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 11.5px;
  background: var(--surface2);
  color: var(--code-fg);
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid var(--border);
}

/* ─── Code block ─────────────────────────────────────────────────────────── */
.code-block {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin: 4px 0 24px;
}

.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 16px;
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
}

.code-label {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.copy-btn {
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 11px;
  font-weight: 700;
  background: transparent;
  color: var(--accent);
  border: 1px solid rgba(80, 140, 255, 0.28);
  padding: 4px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  letter-spacing: 0.04em;
}

.copy-btn:hover {
  background: var(--accent-dim);
  border-color: rgba(80, 140, 255, 0.55);
}

.copy-btn.copied {
  color: var(--code-fg);
  border-color: rgba(126, 207, 160, 0.4);
}

pre {
  margin: 0;
  padding: 18px 20px;
  overflow-x: auto;
  font-family: ui-monospace, 'Cascadia Code', 'Fira Code', Consolas, 'Courier New', monospace;
  font-size: 11.5px;
  line-height: 1.7;
  color: var(--text-mid);
  tab-size: 2;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
  border-radius: 0;
}

/* Minimal syntax tinting */
pre .hl-attr  { color: #6fa8ff; }
pre .hl-val   { color: var(--code-fg); }
pre .hl-tag   { color: #c4cedd; }
pre .hl-cmt   { color: var(--muted); font-style: italic; }

/* ─── Banner custom class ─────────────────────────────────────────────────── */
.myCookieWarningClass {
  margin: 0 12px 12px !important;
  border-radius: 14px !important;
  left: 0 !important;
  right: 0 !important;
  border: 1px solid rgba(80, 140, 255, 0.2) !important;
}

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .container { padding: 32px 16px 120px; }
  h1 { font-size: 1.15rem; }
  .site-header { flex-direction: column; gap: 12px; }
}