/* SEO intro paragraphs — crawlable static text, visually subtle */
.tool-seo-intro {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 1.4rem;
  max-width: 72ch;
}

/* Tools-page extras */
.tools-page-header {
  padding: 6rem 0 3rem;
  text-align: center;
  background: var(--bg-1);
  border-bottom: 1px solid var(--border);
}
.tools-page-header h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 900;
  color: #fff;
  margin-bottom: 0.5rem;
}
.tools-page-header p { color: var(--muted); font-size: 1rem; }

.tool-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}
.tab-btn {
  padding: 0.55rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  margin-bottom: -1px;
  transition: color 0.15s, border-color 0.15s;
  font-family: var(--font);
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--blue-light); border-bottom-color: var(--blue-light); }

.tool-panel { display: none; }
.tool-panel.active { display: block; }

/* Calculator shared styles */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
@media (max-width: 720px) { .calc-grid { grid-template-columns: 1fr; } }

.calc-form { display: flex; flex-direction: column; gap: 1rem; }

.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.field input, .field select {
  padding: 0.6rem 0.9rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.15s;
  width: 100%;
}
.field input:focus, .field select:focus { border-color: var(--blue-light); }
.field select option { background: var(--bg-2); }

.calc-btn {
  padding: 0.65rem 1.4rem;
  background: var(--blue);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  align-self: flex-start;
}
.calc-btn:hover { background: var(--blue-light); box-shadow: 0 0 16px var(--blue-glow); }

.results {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.4rem;
  min-height: 160px;
}
.results-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 1rem;
}
.result-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
.result-row:last-child { border-bottom: none; }
.result-label { color: var(--muted); }
.result-value {
  font-family: var(--font-mono);
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
  text-align: right;
  white-space: nowrap;
}
.result-value .unit { font-size: 0.82rem; color: var(--muted); font-weight: 400; }
.results-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  color: var(--muted);
  font-size: 0.85rem;
}

/* Band plan table */
.bandplan-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.bandplan-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  background: var(--bg-2);
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--border);
}
.bandplan-table td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}
.bandplan-table tr:hover td { background: var(--bg-2); }
.bandplan-table td:last-child { font-family: var(--font); }
.bp-band-header td {
  background: var(--bg-1) !important;
  color: var(--amber);
  font-weight: 700;
  font-family: var(--font);
  letter-spacing: 0.05em;
  font-size: 0.8rem;
}
.bandplan-wrap {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

/* RST table */
.ref-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
@media (max-width: 700px) { .ref-grid { grid-template-columns: 1fr; } }
.ref-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.ref-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  background: var(--bg-2);
  color: var(--muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 2px solid var(--border);
}
.ref-table td {
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.ref-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--amber);
  width: 2.5rem;
}
.ref-table tr:hover td { background: var(--bg-2); }
.ref-table-wrap { border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 1.5rem; }

.qcode-search {
  display: flex; gap: 0.5rem; margin-bottom: 1rem;
}
.qcode-search input {
  flex: 1;
  padding: 0.55rem 0.9rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-transform: uppercase;
  outline: none;
}
.qcode-search input:focus { border-color: var(--blue-light); }
#qcode-table td:first-child { width: 3.5rem; font-size: 0.9rem; }
#qcode-table td { color: var(--text); font-family: var(--font); }
#qcode-table td:first-child { font-family: var(--font-mono); }