/* site.css — Guitar Chords public site */

:root {
  --ink: #1a1a1a;
  --ink-soft: #555;
  --paper: #fdfaf5;
  --rule: #d8d2c4;
  --accent: #8b0000;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --max-width: 760px;
}

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

body {
  font-family: var(--serif);
  color: var(--ink);
  background: var(--paper);
  max-width: var(--max-width);
  margin: 3rem auto 6rem;
  padding: 0 1.5rem;
  line-height: 1.55;
  font-size: 19px;
}

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

.site-header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding-bottom: 1.2rem;
  margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--rule);
}
.site-header .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  border-bottom: none;
  color: var(--ink);
  flex: 1;
}
.site-header .logo {
  width: 40px; height: 40px;
  flex: none; display: block;
}
.site-header .logo .frame { fill: none; stroke: currentColor; stroke-width: 4; }
.site-header .logo .string { stroke: currentColor; stroke-width: 2; opacity: 0.5; }
.site-header .logo .dot { fill: var(--accent); }
.site-header .wordmark {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.site-header .wordmark small {
  display: block;
  font-family: var(--sans);
  font-weight: 400;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
}
.lang-toggle {
  font-family: var(--sans);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-decoration: none;
  border: 1px solid var(--rule);
  border-radius: 4px;
  padding: 0.2rem 0.55rem;
  flex: none;
}
.lang-toggle:hover { color: var(--accent); border-color: var(--accent); }

/* ----- Typography ----- */

h1, h2, h3 { font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 2.2rem; margin: 0 0 0.2rem; }
h2 {
  font-size: 1.4rem; margin: 2.5rem 0 0.8rem;
  border-bottom: 1px solid var(--rule); padding-bottom: 0.3rem;
}

p { margin: 0.6rem 0; }

a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(139,0,0,0.3);
}
a:hover { border-bottom-color: var(--accent); }

.lead {
  color: var(--ink-soft);
  margin: 0.4rem 0 1.6rem;
}

code { font-family: var(--mono); font-size: 0.9em; background: rgba(0,0,0,0.05); padding: 0.1em 0.35em; border-radius: 3px; }

/* ----- Decoder table ----- */

.decoder-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.98rem;
}
.decoder-table th, .decoder-table td {
  border-bottom: 1px solid var(--rule);
  padding: 0.4rem 0.6rem;
  text-align: left;
  vertical-align: top;
}
.decoder-table th { background: rgba(0,0,0,0.03); font-weight: 600; }
.decoder-table code { background: transparent; padding: 0; }

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

footer {
  margin-top: 4rem;
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
  font-family: var(--sans);
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.extension-cta {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}
.extension-cta .ext-icon {
  width: 48px; height: 48px; flex: none;
}
.extension-cta .ext-body {}
.extension-cta .ext-heading {
  font-weight: 600;
  color: var(--ink);
  margin: 0 0 0.2rem;
  font-size: 1rem;
}
.extension-cta .ext-desc {
  margin: 0 0 0.6rem;
  font-size: 0.88rem;
}
.extension-cta .ext-btn {
  display: inline-block;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--accent);
  border-radius: 4px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  cursor: pointer;
}
.extension-cta .ext-btn[href]:hover { opacity: 0.88; border-bottom-color: var(--accent); }
.extension-cta .ext-btn[disabled] {
  opacity: 0.8;
  cursor: not-allowed;
}

@media print {
  .site-header { display: none; }
  body { background: #fff; max-width: none; font-size: 14px; }
  a { color: var(--ink); border: none; }
  footer { display: none; }
}