/* ==========================================================================
   D6 Labs - Cellular Site Survey Tool (/tools/site-survey)
   Depends on d6-main.css tokens and .d6-product-hero from products.css.
   ========================================================================== */

.ss-hero {
    padding: 56px 0 36px;
    background: linear-gradient(rgba(69, 79, 80, 0.85), rgba(69, 79, 80, 0.6)), var(--d6-grey-dark);
    color: var(--d6-white);
    text-align: center;
}
.ss-hero h1 { color: var(--d6-white); margin: 0; font-size: clamp(28px, 4vw, 44px); font-weight: 700; }
.ss-hero .d6-product-tagline { color: var(--d6-white); opacity: 0.95; font-style: italic; margin: 12px 0 0; font-size: clamp(16px, 2vw, 20px); }

/* ---------- Layout ---------- */
.ss-tool {
    background: #eef2f4;
    color: var(--d6-grey-dark);
    font-family: var(--font-primary);
}
.ss-layout {
    display: grid;
    grid-template-columns: 400px minmax(0, 1fr);
    min-height: 720px;
    height: calc(100vh - 120px);
    max-height: 1000px;
}
@media (max-width: 960px) {
    .ss-layout {
        grid-template-columns: 1fr;
        height: auto;
        max-height: none;
    }
    .ss-map-wrap { height: 70vh; min-height: 420px; order: -1; }
    .ss-panel { max-height: none; }
}

/* ---------- Panel ---------- */
.ss-panel {
    background: var(--d6-white);
    border-right: 1px solid var(--d6-grey-border);
    padding: 18px 18px 24px;
    overflow-y: auto;
    font-size: 15px;
    line-height: 1.4;
}
.ss-panel h2, .ss-panel h3 { font-family: var(--font-primary); }
.ss-h2 { font-size: 20px; font-weight: 700; color: var(--d6-grey-dark); margin: 20px 0 6px; }
.ss-h3 { font-size: 15px; font-weight: 700; color: var(--d6-grey-dark); margin: 18px 0 8px; text-transform: uppercase; letter-spacing: 0.03em; }
.ss-muted { color: #6b7479; }
.ss-coords { font-size: 13px; margin-bottom: 8px; }
.ss-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

.ss-label { display: block; font-weight: 700; font-size: 14px; margin-bottom: 6px; }
.ss-search-row { display: flex; gap: 6px; }
.ss-search-row input {
    flex: 1; min-width: 0;
    font: inherit; font-size: 15px;
    padding: 10px 12px;
    border: 1px solid #c9d1d6; border-radius: 6px;
    color: var(--d6-grey-dark);
}
.ss-search-row input:focus, .ss-field select:focus, .ss-field input:focus { outline: 2px solid var(--d6-red); outline-offset: 1px; border-color: var(--d6-red); }
.ss-hint { font-size: 13px; color: #6b7479; margin: 6px 0 0; }

.ss-btn {
    font: inherit; font-weight: 700; font-size: 15px;
    padding: 10px 14px;
    border-radius: 6px; border: 2px solid var(--d6-red);
    cursor: pointer; transition: all 0.15s ease;
    white-space: nowrap;
}
.ss-btn-primary { background: var(--d6-red); color: var(--d6-white); }
.ss-btn-primary:hover:not(:disabled) { background: var(--d6-white); color: var(--d6-red); }
.ss-btn-primary:disabled { background: #b7bec2; border-color: #b7bec2; cursor: default; }
.ss-btn-primary.is-dirty { box-shadow: 0 0 0 3px rgba(233, 55, 37, 0.25); }
.ss-btn-ghost { background: var(--d6-white); color: var(--d6-grey-dark); border-color: #c9d1d6; }
.ss-btn-ghost:hover { border-color: var(--d6-grey-dark); }
.ss-btn-wide { flex: 1; }
.ss-btn-ghost.is-active { background: var(--d6-grey-dark); color: var(--d6-white); border-color: var(--d6-grey-dark); }
.ss-btn-ghost:disabled { color: #a2a7a7; cursor: default; }
.ss-btn-ghost:disabled:hover { border-color: #c9d1d6; }
.ss-actions { display: flex; gap: 8px; margin-top: 14px; }

.ss-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; margin-top: 14px; }
.ss-field label { display: block; font-size: 12.5px; font-weight: 700; color: #4a555c; margin-bottom: 3px; }
.ss-field select, .ss-field input {
    width: 100%; box-sizing: border-box;
    font: inherit; font-size: 14px;
    padding: 7px 8px;
    border: 1px solid #c9d1d6; border-radius: 6px;
    background: var(--d6-white); color: var(--d6-grey-dark);
}
.ss-check { display: flex; gap: 8px; align-items: flex-start; font-size: 13.5px; margin-top: 12px; cursor: pointer; }
.ss-check input { margin-top: 3px; }

.ss-status { margin-top: 12px; font-size: 14px; color: #4a555c; min-height: 1.4em; }
.ss-status.is-error { color: #b3261e; font-weight: 700; }
.ss-status.is-ok { color: #1b6e2e; }
.ss-progress-wrap { margin-top: 8px; }
.ss-progress-track { height: 6px; background: var(--d6-grey-light); border-radius: 3px; overflow: hidden; }
.ss-progress { height: 100%; width: 0; background: var(--d6-red); transition: width 0.2s ease; }
.ss-progress-text { font-size: 12.5px; color: #6b7479; margin-top: 4px; }

/* ---------- Results ---------- */
.ss-center-card { display: grid; grid-template-columns: 132px 1fr; gap: 12px; align-items: start; }
@media (max-width: 420px) { .ss-center-card { grid-template-columns: 1fr; } }
.ss-center-grade {
    border: 3px solid; border-radius: 10px; padding: 10px 8px; text-align: center; background: #fafbfb;
}
.ss-center-grade-label { font-weight: 900; font-size: 18px; text-transform: uppercase; letter-spacing: 0.02em; }
.ss-center-rssi { font-size: 22px; font-weight: 700; margin-top: 4px; }
.ss-center-rssi span { font-size: 12px; font-weight: 400; color: #6b7479; }
.ss-center-sub { font-size: 12px; color: #6b7479; margin-top: 2px; }
.ss-center-detail { font-size: 13.5px; }
.ss-center-detail div { margin-bottom: 4px; }

.ss-tag {
    display: inline-block; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em;
    color: #6b7479; border: 1px solid #c9d1d6; border-radius: 4px; padding: 0 5px; vertical-align: middle;
}
.ss-chip {
    display: inline-block; color: var(--d6-white); font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 10px;
    text-transform: uppercase; letter-spacing: 0.02em; white-space: nowrap;
}

.ss-tower-list { display: flex; flex-direction: column; gap: 4px; max-height: 340px; overflow-y: auto; }
.ss-tower-row {
    display: grid; grid-template-columns: 14px 1fr auto; gap: 10px; align-items: center;
    width: 100%; text-align: left; font: inherit; font-size: 13.5px;
    background: #fafbfb; border: 1px solid var(--d6-grey-border); border-radius: 8px; padding: 8px 10px;
    cursor: pointer; color: var(--d6-grey-dark);
}
.ss-tower-row:hover { border-color: var(--d6-grey-medium); background: var(--d6-white); }
.ss-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; box-sizing: border-box; }
.ss-tower-main { display: flex; flex-direction: column; min-width: 0; }
.ss-tower-name { font-weight: 700; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ss-tower-meta { font-size: 12px; color: #6b7479; }
.ss-tower-rssi { text-align: right; font-weight: 700; font-size: 13px; line-height: 1.5; }
.ss-data-notes { font-size: 12.5px; color: #6b7479; margin-top: 10px; }
.ss-data-notes div { margin-bottom: 3px; }

/* ---------- Legend ---------- */
.ss-legend { display: flex; flex-direction: column; gap: 4px; font-size: 13px; }
.ss-legend-row { display: grid; grid-template-columns: 18px 90px 1fr; gap: 8px; align-items: center; }
.ss-swatch { width: 18px; height: 14px; border-radius: 3px; display: inline-block; }
.ss-legend-label { font-weight: 700; }
.ss-legend-range { color: #6b7479; }

/* ---------- Advanced ---------- */
.ss-advanced { margin-top: 18px; border-top: 1px solid var(--d6-grey-border); padding-top: 12px; }
.ss-advanced summary { cursor: pointer; font-weight: 700; font-size: 14px; }
.ss-budget-summary { margin-top: 10px; font-size: 12.5px; background: #fafbfb; border: 1px solid var(--d6-grey-border); border-radius: 8px; padding: 8px 10px; }
.ss-budget-summary div { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; }
.ss-budget-summary b { white-space: nowrap; }
.ss-advanced-grid { margin-top: 10px; }
.ss-reset { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--d6-blue); }
.ss-fineprint { font-size: 12px; color: #6b7479; margin-top: 10px; }
.ss-fineprint code { font-size: 11.5px; background: var(--d6-grey-light); padding: 0 4px; border-radius: 3px; }

.ss-disclaimer {
    margin-top: 18px; font-size: 13px; line-height: 1.45;
    background: #fff6e5; border: 1px solid #f3d9a4; border-radius: 8px; padding: 10px 12px; color: #5a4a26;
}
.ss-disclaimer a { color: var(--d6-red); font-weight: 700; }
.ss-credits { margin-top: 12px; font-size: 11.5px; color: #8a949a; }
.ss-credits a { color: #6b7479; }

/* ---------- Map ---------- */
.ss-map-wrap { position: relative; min-height: 420px; }
.ss-map { position: absolute; inset: 0; }
.ss-map-toolbar {
    position: absolute; top: 10px; left: 10px; z-index: 2;
    display: flex; gap: 4px; align-items: center;
    background: rgba(255, 255, 255, 0.92); border-radius: 8px; padding: 4px; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
}
.ss-map-btn {
    font: inherit; font-size: 13px; font-weight: 700; padding: 6px 10px;
    border: 0; border-radius: 6px; background: transparent; color: var(--d6-grey-dark); cursor: pointer;
}
.ss-map-btn:hover { background: var(--d6-grey-light); }
.ss-map-btn.is-active { background: var(--d6-grey-dark); color: var(--d6-white); }
.ss-map-sep { width: 1px; height: 20px; background: #c9d1d6; margin: 0 2px; }
.ss-map-help {
    position: absolute; bottom: 28px; right: 10px; z-index: 2;
    font-size: 11.5px; color: var(--d6-white); background: rgba(31, 42, 48, 0.7); border-radius: 6px; padding: 4px 8px;
    pointer-events: none;
}
@media (max-width: 640px) { .ss-map-help { display: none; } }

/* MapLibre popups */
.ss-popup .maplibregl-popup-content { padding: 0; border-radius: 10px; overflow: hidden; font-family: var(--font-primary); color: var(--d6-grey-dark); box-shadow: 0 3px 14px rgba(0, 0, 0, 0.3); }
.ss-popup .maplibregl-popup-close-button { font-size: 20px; padding: 2px 8px; color: var(--d6-white); mix-blend-mode: difference; }
.ss-pop { padding: 0 0 8px; font-size: 13px; line-height: 1.4; min-width: 240px; }
.ss-pop > div { padding: 0 12px; }
.ss-pop > div + div { margin-top: 4px; }
.ss-pop-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; color: var(--d6-white); padding: 8px 12px !important; margin-bottom: 6px; }
.ss-pop-grade { font-weight: 900; font-size: 16px; text-transform: uppercase; letter-spacing: 0.02em; }
.ss-pop-rssi { font-weight: 700; font-size: 18px; }
.ss-pop-rssi small { font-size: 11px; font-weight: 400; opacity: 0.9; }
.ss-pop-sub { color: #6b7479; font-size: 12px; }
.ss-pop-title { font-weight: 700; font-size: 14px; border-left: 4px solid; padding: 8px 12px !important; margin-bottom: 6px; background: #fafbfb; }
.ss-pop-rssi-line { margin-top: 8px !important; padding-top: 6px !important; border-top: 1px solid var(--d6-grey-border); }
.ss-pop-coords { font-size: 11px; color: #8a949a; margin-top: 6px !important; }
.ss-pop canvas.ss-profile { display: block; width: calc(100% - 24px); margin: 8px 12px 0; border-radius: 6px; border: 1px solid var(--d6-grey-border); }
.ss-pop-ask { padding-top: 10px; }
.ss-pop-ask-title { font-weight: 700; font-size: 14px; margin-bottom: 4px; }
.ss-pop-ask-actions { display: flex; gap: 8px; margin-top: 10px !important; }
.ss-pop-ask-actions .ss-btn { font-size: 13px; padding: 7px 10px; }
.ss-others { margin-top: 6px; }
.ss-others summary { cursor: pointer; font-weight: 700; font-size: 12.5px; }
.ss-others table { width: 100%; border-collapse: collapse; font-size: 12px; margin-top: 4px; }
.ss-others td { padding: 2px 4px 2px 0; border-top: 1px solid var(--d6-grey-border); white-space: nowrap; }
.ss-others td:first-child { white-space: normal; }

/* ---------- Explainer ---------- */
.ss-explainer { padding: 48px 0; }
.ss-explainer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; text-align: left; }
@media (max-width: 768px) { .ss-explainer-grid { grid-template-columns: 1fr; gap: 24px; } }
.ss-explainer p { font-size: 16px; line-height: 1.55; color: var(--d6-grey-dark); }
.ss-explainer .ss-h2 { margin-top: 0; font-size: 24px; }
.ss-bullets { padding-left: 20px; font-size: 16px; line-height: 1.55; }
.ss-bullets li { margin-bottom: 8px; }