/* ==========================================================================
   WN4AFT — Radio Tools pages (Callsign Lookup, Find a Repeater)
   Loaded only by /callsign-lookup.html and /find-a-repeater.html, after
   /styles.css. Every rule is scoped to body.rt-page, so the homepage, Get
   Started and the error pages are unaffected. Uses the :root tokens from
   styles.css.
   ========================================================================== */

.rt-page .rt-section p, .rt-page .rt-lead { max-width: 42rem; }
.rt-page .rt-h2 { font-size: var(--step-3); color: var(--navy); margin-bottom: 0.9rem; }
.rt-page .rt-lead { font-size: var(--step-1); color: var(--ink); margin-bottom: 2rem; }
.rt-page .rt-more { margin: 2.25rem 0 0; font-family: var(--font-display); letter-spacing: 0.04em; }

/* ---------- Hero ---------- */
.rt-page .rt-hero {
  position: relative; overflow: hidden; isolation: isolate;
  background:
    radial-gradient(circle at 80% 45%, rgba(212, 167, 44, 0.12) 0, transparent 42%),
    linear-gradient(180deg, var(--navy-deep), var(--navy));
  color: var(--on-navy);
  padding-block: clamp(2.75rem, 2rem + 4vw, 5rem);
}
.rt-page .rt-hero-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.rt-page .rt-hero h1 { font-size: clamp(2.5rem, 1.6rem + 4vw, 4.25rem); color: var(--on-navy); line-height: 1.02; margin-bottom: 1.1rem; }
.rt-page .rt-hero-text p:not(.eyebrow) { color: var(--on-navy-muted); font-size: var(--step-1); line-height: 1.65; max-width: 40rem; }
.rt-page .rt-hero-text p:last-child { margin-bottom: 0; }
.rt-page .rt-hero-art { justify-self: center; width: min(100%, 280px); }
.rt-page .rt-art { width: 100%; height: auto; overflow: visible; }
.rt-page .rt-art-card { fill: var(--navy-soft); stroke: rgba(212, 167, 44, 0.55); stroke-width: 2; }
.rt-page .rt-art-line-gold { fill: var(--gold); }
.rt-page .rt-art-block { fill: rgba(245, 239, 224, 0.85); }
.rt-page .rt-art-line { fill: rgba(201, 210, 222, 0.45); }
.rt-page .rt-art-lens { fill: rgba(10, 24, 48, 0.55); stroke: var(--gold); stroke-width: 6; }
.rt-page .rt-art-handle { stroke: var(--gold); stroke-width: 9; stroke-linecap: round; fill: none; }
.rt-page .rt-art-wave, .rt-page .rt-art-link { stroke: var(--gold); stroke-width: 4; stroke-linecap: round; fill: none; }
.rt-page .rt-art-link { stroke-dasharray: 3 9; stroke-width: 3; opacity: 0.8; }
.rt-page .rt-art-tower { stroke: var(--on-navy); stroke-width: 4.5; stroke-linecap: round; stroke-linejoin: round; fill: none; }
.rt-page .rt-art-dot { fill: var(--gold); }
.rt-page .rt-art-radio { fill: var(--navy-soft); stroke: var(--on-navy); stroke-width: 3; }
.rt-page .rt-art-ant { stroke: var(--on-navy); stroke-width: 3.5; stroke-linecap: round; }

/* ---------- Shared bits ---------- */
.rt-page .rt-badge {
  display: inline-block; font-family: var(--font-display); font-weight: 700; font-size: 0.72rem; letter-spacing: 0.14em;
  text-transform: uppercase; padding: 0.15rem 0.55rem; border-radius: 999px; background: var(--navy); color: var(--gold);
  vertical-align: 0.1em;
}
.rt-page .rt-link-kicker { font-family: var(--font-display); font-size: 0.8rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold-ink); margin: 0 0 0.5rem; }
.rt-page .rt-ext { display: inline-block; width: 15px; height: 15px; margin-left: 0.4rem; vertical-align: -2px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.rt-page .rt-ext-link { font-family: var(--font-display); font-weight: 500; letter-spacing: 0.03em; color: var(--navy); text-decoration-color: var(--gold); text-underline-offset: 4px; }
.rt-page .rt-ext-link:hover { color: var(--gold-ink); }
.rt-page .rt-btn { text-align: center; }
.rt-page .rt-call-inline { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.06em; }

/* ---------- Callsign: lookup panel ---------- */
.rt-page .rt-lookup-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3rem); align-items: start; }
.rt-page .rt-panel {
  background: var(--paper); border: 1px solid var(--rule); border-top: 5px solid var(--gold); border-radius: 14px;
  padding: clamp(1.25rem, 3vw, 2.25rem); box-shadow: 0 16px 36px rgba(10, 24, 48, 0.08);
}
.rt-page .rt-panel-title { font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); color: var(--navy); margin-bottom: 0.6rem; }
.rt-page .rt-scope { color: var(--ink-muted); font-size: 0.98rem; margin-bottom: 1.5rem; }
.rt-page .rt-label { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1.1rem; letter-spacing: 0.04em; color: var(--navy); }
.rt-page .rt-hint { color: var(--ink-muted); font-size: 0.95rem; margin: 0.15rem 0 0.6rem; }
.rt-page .rt-form-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.rt-page .rt-input {
  flex: 1 1 14rem; min-width: 0; min-height: 52px; padding: 0.5rem 0.9rem;
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--navy); background: #FFFFFF; border: 2px solid #8C93A0; border-radius: 10px;
}
.rt-page .rt-input:focus { border-color: var(--navy); }
.rt-page .rt-input:focus-visible { outline: 3px solid var(--navy); outline-offset: 2px; }
.rt-page .rt-input[aria-invalid="true"] { border-color: #A3231A; box-shadow: 0 0 0 1px #A3231A; }
.rt-page .rt-submit { min-height: 52px; flex: 0 0 auto; }
.rt-page .rt-submit[aria-busy="true"] { cursor: progress; }
.rt-page .rt-submit:disabled { opacity: 0.75; }
.rt-page .rt-field-error { display: flex; gap: 0.4rem; align-items: flex-start; color: #A3231A; font-weight: 600; margin: 0.6rem 0 0; }
.rt-page .rt-field-error[hidden] { display: none; }
.rt-page .rt-field-error::before { content: "!"; flex: none; display: inline-grid; place-items: center; width: 1.2rem; height: 1.2rem; border-radius: 50%; background: #A3231A; color: #fff; font-size: 0.8rem; margin-top: 0.2rem; }
.rt-page .rt-noscript { padding: 1rem 1.15rem; border-radius: 10px; background: #FFF5DA; border: 1px solid var(--gold-ink); }

.rt-page .rt-spinner { display: none; width: 18px; height: 18px; border-radius: 50%; border: 3px solid currentColor; border-right-color: transparent; animation: rt-spin 0.8s linear infinite; }
.rt-page .rt-submit[aria-busy="true"] .rt-spinner { display: inline-block; }
.rt-page .rt-spinner-lg { display: inline-block; width: 28px; height: 28px; color: var(--gold-ink); }
@keyframes rt-spin { to { transform: rotate(360deg); } }

.rt-page .rt-results { margin-top: 1.75rem; }
.rt-page .rt-idle { padding: 1.1rem 1.25rem; border: 2px dashed var(--rule); border-radius: 10px; color: var(--ink-muted); }
.rt-page .rt-idle p { margin: 0; }
.rt-page .rt-loading { display: flex; align-items: center; gap: 0.9rem; padding: 1.1rem 1.25rem; border-radius: 10px; background: var(--cream); }
.rt-page .rt-loading p { margin: 0; }

/* Notices: icon + title text carry the meaning, not color alone */
.rt-page .rt-notice { display: flex; gap: 0.9rem; align-items: flex-start; padding: 1.1rem 1.25rem; border-radius: 10px; border: 1px solid var(--rule); background: #FFFFFF; margin-bottom: 1rem; }
.rt-page .rt-notice-icon { width: 28px; height: 28px; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; margin-top: 0.1rem; }
.rt-page .rt-notice-info { border-left: 5px solid var(--navy); color: var(--navy); }
.rt-page .rt-notice-warn { border-left: 5px solid var(--gold-ink); background: #FFF8E6; color: var(--gold-ink); }
.rt-page .rt-notice-change { border-left: 5px solid var(--gold); background: #FFF8E6; color: var(--navy); }
.rt-page .rt-notice-body { color: var(--ink); min-width: 0; }
.rt-page .rt-notice-title { font-size: 1.25rem; color: var(--navy); margin-bottom: 0.4rem; }
.rt-page .rt-notice-body p { margin: 0 0 0.6rem; }
.rt-page .rt-notice-body p:last-child { margin-bottom: 0; }
.rt-page .rt-pair { display: grid; grid-template-columns: auto 1fr; gap: 0.25rem 1rem; margin: 0 0 0.75rem; }
.rt-page .rt-pair dt { color: var(--ink-muted); }
.rt-page .rt-pair dd { margin: 0; color: var(--navy); font-size: 1.15rem; }

/* Record card */
.rt-page .rt-record { border-radius: 12px; overflow: hidden; border: 1px solid var(--rule); background: #FFFFFF; }
.rt-page .rt-record-head { background: var(--navy); color: var(--on-navy); padding: 1.1rem 1.4rem; }
.rt-page .rt-record-kicker { font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--on-navy-muted); margin: 0 0 0.25rem; }
.rt-page .rt-record-call { font-size: clamp(2rem, 1.5rem + 2vw, 2.8rem); letter-spacing: 0.07em; color: var(--gold); }
.rt-page .rt-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin: 0; }
.rt-page .rt-field { padding: 0.9rem 1.4rem; border-bottom: 1px solid var(--rule); }
.rt-page .rt-field dt { font-family: var(--font-display); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink-muted); margin: 0 0 0.2rem; }
.rt-page .rt-field dd { margin: 0; font-size: 1.05rem; color: var(--ink); }
.rt-page .rt-missing { color: var(--ink-muted) !important; font-style: italic; }
.rt-page .rt-record-source { padding: 1rem 1.4rem 1.2rem; background: var(--paper); }
.rt-page .rt-source-line { margin: 0 0 0.2rem; font-size: 0.95rem; color: var(--ink); }
.rt-page .rt-source-label { font-weight: 600; }
.rt-page .rt-source-link { margin: 0.6rem 0; }
.rt-page .rt-caveat { margin: 0.6rem 0 0; font-size: 0.92rem; color: var(--ink-muted); }

/* About aside */
.rt-page .rt-about { background: var(--navy); color: var(--on-navy); border-radius: 14px; padding: clamp(1.25rem, 3vw, 1.75rem); }
.rt-page .rt-about-title { font-size: 1.35rem; color: var(--gold); margin-bottom: 0.9rem; }
.rt-page .rt-about-list { list-style: none; margin: 0; padding: 0; }
.rt-page .rt-about-list li { color: var(--on-navy-muted); font-size: 0.98rem; line-height: 1.6; padding: 0.85rem 0; border-top: 1px solid rgba(201, 210, 222, 0.2); }
.rt-page .rt-about-list li:first-child { border-top: 0; padding-top: 0; }
.rt-page .rt-about-list strong { display: block; font-family: var(--font-display); font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; font-size: 0.85rem; color: var(--on-navy); margin-bottom: 0.2rem; }

/* External source cards */
.rt-page .rt-link-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.rt-page .rt-link-card { background: #FFFFFF; border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.35rem; display: flex; flex-direction: column; }
.rt-page .rt-link-card h3 { font-size: 1.35rem; color: var(--navy); margin-bottom: 0.4rem; }
.rt-page .rt-link-card p:not(.rt-link-kicker) { color: var(--ink-muted); font-size: 1rem; margin-bottom: 1rem; flex-grow: 1; }

/* ---------- Find a Repeater ---------- */
.rt-page .rt-search-cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.rt-page .rt-search-card.rt-search-card-main { grid-column: 1 / -1; display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 2rem; align-items: center; }
.rt-page .rt-search-card.rt-search-card-main > .rt-btn { grid-column: 2; grid-row: 1 / span 3; margin: 0; }
/* Long, descriptive link labels: sentence case so they stay readable on one or two lines */
.rt-page .rt-search-card .rt-btn, .rt-page .rt-correct .rt-btn { text-transform: none; letter-spacing: 0.02em; font-size: 1.05rem; line-height: 1.3; padding-block: 0.75rem; }
.rt-page .rt-search-card { display: flex; flex-direction: column; align-items: flex-start; background: var(--paper); border: 1px solid var(--rule); border-radius: 14px; padding: clamp(1.25rem, 3vw, 1.75rem); }
.rt-page .rt-search-card h3 { font-size: 1.45rem; color: var(--navy); margin-bottom: 0.45rem; }
.rt-page .rt-search-card p:not(.rt-link-kicker) { color: var(--ink-muted); flex-grow: 1; margin-bottom: 1.25rem; }
/* Main (navy) card: declared after the generic card rules so its colors win */
.rt-page .rt-search-card.rt-search-card-main { background: var(--navy); border-color: var(--navy); color: var(--on-navy); }
.rt-page .rt-search-card.rt-search-card-main h3 { color: var(--on-navy); }
.rt-page .rt-search-card.rt-search-card-main .rt-link-kicker { color: var(--gold); }
.rt-page .rt-search-card.rt-search-card-main p:not(.rt-link-kicker) { color: var(--on-navy-muted); }
.rt-page .rt-search-card.rt-search-card-main :focus-visible { outline-color: var(--gold); }
.rt-page .rt-search-card .rt-btn { margin-top: auto; }
.rt-page .rt-note { display: flex; gap: 0.75rem; align-items: flex-start; margin-top: 1.5rem; padding: 1rem 1.2rem; border-radius: 10px; background: var(--paper); border: 1px solid var(--rule); max-width: 50rem; }
.rt-page .rt-note p { margin: 0; }
.rt-page .rt-note-icon { width: 24px; height: 24px; flex: none; fill: none; stroke: var(--navy); stroke-width: 2; stroke-linecap: round; margin-top: 0.15rem; }

.rt-page .rt-glossary { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin: 0; }
.rt-page .rt-term { background: #FFFFFF; border: 1px solid var(--rule); border-radius: var(--radius); padding: 1.25rem 1.35rem; }
.rt-page .rt-term dt { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--navy); margin-bottom: 0.35rem; }
.rt-page .rt-term dd { margin: 0; color: var(--ink); line-height: 1.6; }
.rt-page .rt-term-wide { grid-column: 1 / -1; border-left: 5px solid var(--gold); }

.rt-page .rt-correct .rt-h2 { margin-bottom: 0.6rem; }
.rt-page .rt-correct { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.5rem 3rem; align-items: center; background: var(--paper); border: 1px solid var(--rule); border-radius: 14px; padding: clamp(1.25rem, 3vw, 2rem); }
.rt-page .rt-correct .rt-h2 { font-size: var(--step-2); }
.rt-page .rt-correct p { margin: 0; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .rt-page .rt-lookup-grid { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-link-cards { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-search-cards { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-search-card.rt-search-card-main { display: flex; align-items: flex-start; }
}
@media (max-width: 760px) {
  .rt-page .rt-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-hero-art { display: none; }
  .rt-page .rt-glossary { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-correct { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 520px) {
  .rt-page .rt-hero-text p:not(.eyebrow) { font-size: 1.0625rem; }
  .rt-page .rt-submit, .rt-page .rt-btn { width: 100%; }
  .rt-page .rt-fields { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-pair { grid-template-columns: minmax(0, 1fr); }
  .rt-page .rt-pair dd { margin-bottom: 0.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  .rt-page .rt-spinner { animation-duration: 2.4s; }
}