:root {
  --bg: #f5f6f8;
  --bg-soft: #ffffff;
  --bg-card: #ffffff;
  --text: #1c2430;
  --muted: #68738a;
  --border: #dde2ea;
  --accent: #0b5cad;
  --accent-soft: #e7f1fc;
  --badge-go: #0a7a33;
  --badge-go-bg: #e3f6ea;
  --badge-conditional: #a35a00;
  --badge-conditional-bg: #fff3df;
  --badge-watch: #6a3fa0;
  --badge-watch-bg: #f1e9fa;
  --badge-nogo: #b02a2a;
  --badge-nogo-bg: #fde8e8;
  --badge-none: #5b6472;
  --badge-none-bg: #eceff3;
  --ok: #0a7a33;
  --ko: #b02a2a;
  --code-bg: #f0f2f5;
  --shadow: 0 1px 3px rgba(16, 24, 40, .08);
  --header-grad-1: #0b2d5c;
  --header-grad-2: #0b5cad;
  --header-text: #ffffff;
  --header-nav-active: rgba(255,255,255,.18);
  --header-nav-hover: rgba(255,255,255,.10);
  /* Colores por platform_scope */
  --topic-terrestrial: #b8742a;
  --topic-terrestrial-bg: #fdf6ec;
  --topic-terrestrial-border: #e8d5b8;
  --topic-uav: #2563eb;
  --topic-uav-bg: #eff6ff;
  --topic-uav-border: #c3dbfe;
  --topic-cross: #7c3aed;
  --topic-cross-bg: #f5f3ff;
  --topic-cross-border: #ddd6fe;
  --topic-default: #475569;
  --topic-default-bg: #f1f5f9;
  --topic-default-border: #cbd5e1;
}

[data-theme="dark"] {
  --bg: #12161d;
  --bg-soft: #181d26;
  --bg-card: #1c222d;
  --text: #e6eaf0;
  --muted: #93a0b4;
  --border: #2b3342;
  --accent: #6cb3ff;
  --accent-soft: #1d2c40;
  --badge-go: #55d489;
  --badge-go-bg: #123321;
  --badge-conditional: #f5b759;
  --badge-conditional-bg: #3a2c12;
  --badge-watch: #c39bf0;
  --badge-watch-bg: #2d2138;
  --badge-nogo: #ff8383;
  --badge-nogo-bg: #3a1717;
  --badge-none: #a7b0bd;
  --badge-none-bg: #272d38;
  --ok: #55d489;
  --ko: #ff8383;
  --code-bg: #232a35;
  --shadow: 0 1px 3px rgba(0, 0, 0, .35);
  --header-grad-1: #0a1f3c;
  --header-grad-2: #103161;
  --header-text: #e6eaf0;
  --header-nav-active: rgba(108,179,255,.25);
  --header-nav-hover: rgba(108,179,255,.12);
  --topic-terrestrial: #d49a52;
  --topic-terrestrial-bg: #2a2118;
  --topic-terrestrial-border: #4a3a26;
  --topic-uav: #6cb3ff;
  --topic-uav-bg: #162238;
  --topic-uav-border: #2a3f5c;
  --topic-cross: #c39bf0;
  --topic-cross-bg: #221833;
  --topic-cross-border: #3d2f54;
  --topic-default: #93a0b4;
  --topic-default-bg: #1c222d;
  --topic-default-border: #2b3342;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  font-size: 15px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: 1180px; margin: 0 auto; padding: 20px 20px 48px; }

/* ===== Header ===== */
.site-header {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 0 20px;
  height: 56px;
  background: linear-gradient(135deg, var(--header-grad-1) 0%, var(--header-grad-2) 100%);
  border-bottom: 1px solid rgba(0,0,0,.15);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,.18);
}
.brand {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: .5px;
  white-space: nowrap;
  color: var(--header-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.brand span {
  color: #6cb3ff;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 1px;
  text-transform: uppercase;
}
.main-nav { display: flex; gap: 4px; flex: 1; }
.main-nav a {
  padding: 7px 14px;
  border-radius: 8px;
  color: rgba(255,255,255,.75);
  font-weight: 500;
  font-size: 14px;
  transition: background .15s, color .15s;
}
.main-nav a:hover {
  text-decoration: none;
  background: var(--header-nav-hover);
  color: var(--header-text);
}
.main-nav a.active {
  background: var(--header-nav-active);
  color: var(--header-text);
}
.theme-toggle {
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.08);
  color: var(--header-text);
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  padding: 6px 10px;
  transition: background .15s;
}
.theme-toggle:hover { background: rgba(255,255,255,.18); }

.site-footer {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  padding: 18px;
  border-top: 1px solid var(--border);
}

/* ===== Tipografía ===== */
h1 { font-size: 24px; margin: 8px 0 18px; }
h2 { font-size: 19px; margin: 26px 0 12px; border-bottom: 1px solid var(--border); padding-bottom: 6px; }
h3 { font-size: 16px; margin: 18px 0 8px; }
.muted { color: var(--muted); }
.breadcrumb { color: var(--muted); font-size: 13px; margin-bottom: 10px; }
.breadcrumb a { color: var(--muted); }

/* ===== Badges ===== */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}
.b-go { background: var(--badge-go-bg); color: var(--badge-go); }
.b-conditional { background: var(--badge-conditional-bg); color: var(--badge-conditional); }
.b-watch { background: var(--badge-watch-bg); color: var(--badge-watch); }
.b-nogo { background: var(--badge-nogo-bg); color: var(--badge-nogo); }
.b-none { background: var(--badge-none-bg); color: var(--badge-none); }

.pill {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 999px;
  font-size: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  margin-right: 4px;
}

/* ===== Grupos por topic ===== */
.topic-group {
  margin-bottom: 28px;
  border-radius: 14px;
  overflow: hidden;
}

.topic-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  border-radius: 14px 14px 0 0;
  border: 1px solid var(--topic-default-border);
  border-bottom: none;
  background: var(--topic-default-bg);
}
.topic-num {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  background: var(--topic-default);
}
.topic-info { flex: 1; min-width: 0; }
.topic-info h2 {
  margin: 0 0 6px;
  border: none;
  padding: 0;
  font-size: 18px;
}
.topic-desc {
  font-size: 13.5px;
  line-height: 1.5;
  margin: 0 0 8px;
}
.topic-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 4px;
}
.topic-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 600;
  background: rgba(255,255,255,.6);
  color: var(--topic-default);
  border: 1px solid var(--topic-default-border);
}
.topic-badge.topic-count {
  background: var(--topic-default);
  color: #fff;
  border-color: var(--topic-default);
}

/* Colores por platform_scope — terrestrial */
.topic-terrestrial .topic-header {
  border-color: var(--topic-terrestrial-border);
  background: var(--topic-terrestrial-bg);
}
.topic-terrestrial .topic-num { background: var(--topic-terrestrial); }
.topic-terrestrial .topic-info h2 { color: var(--topic-terrestrial); }
.topic-terrestrial .topic-badge { color: var(--topic-terrestrial); border-color: var(--topic-terrestrial-border); background: rgba(184,116,42,.08); }
.topic-terrestrial .topic-badge.topic-count { background: var(--topic-terrestrial); color: #fff; }
.topic-terrestrial .cards { border-color: var(--topic-terrestrial-border); }

/* Colores por platform_scope — uav */
.topic-uav .topic-header {
  border-color: var(--topic-uav-border);
  background: var(--topic-uav-bg);
}
.topic-uav .topic-num { background: var(--topic-uav); }
.topic-uav .topic-info h2 { color: var(--topic-uav); }
.topic-uav .topic-badge { color: var(--topic-uav); border-color: var(--topic-uav-border); background: rgba(37,99,235,.08); }
.topic-uav .topic-badge.topic-count { background: var(--topic-uav); color: #fff; }
.topic-uav .cards { border-color: var(--topic-uav-border); }

/* Colores por platform_scope — cross_platform */
.topic-cross .topic-header {
  border-color: var(--topic-cross-border);
  background: var(--topic-cross-bg);
}
.topic-cross .topic-num { background: var(--topic-cross); }
.topic-cross .topic-info h2 { color: var(--topic-cross); }
.topic-cross .topic-badge { color: var(--topic-cross); border-color: var(--topic-cross-border); background: rgba(124,58,237,.08); }
.topic-cross .topic-badge.topic-count { background: var(--topic-cross); color: #fff; }
.topic-cross .cards { border-color: var(--topic-cross-border); }

/* ===== Tarjetas de propuestas ===== */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 14px;
  padding: 16px 20px 20px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 14px 14px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-left: 4px solid var(--topic-default);
}
.card.topic-terrestrial { border-left-color: var(--topic-terrestrial); }
.card.topic-uav { border-left-color: var(--topic-uav); }
.card.topic-cross { border-left-color: var(--topic-cross); }
.card:hover { border-color: var(--accent); box-shadow: 0 2px 8px rgba(16,24,40,.15); }
.card-ids {
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.card-id-combined {
  font-weight: 800;
  font-size: 15px;
  color: var(--accent);
  letter-spacing: .5px;
}
.card-id-orig { font-size: 12px; }
.card .card-title { font-weight: 600; font-size: 15px; }
.card .card-title a { color: var(--text); }
.card .card-title a:hover { text-decoration: none; color: var(--accent); }
.card .card-problem { color: var(--muted); font-size: 13.5px; }
.card .card-meta { font-size: 12.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.card .card-foot { display: flex; align-items: center; justify-content: flex-end; margin-top: auto; }

/* ===== Filtros ===== */
.filters {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.filters input, .filters select {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 10px;
  font-size: 14px;
}
.filters input[type="search"] { min-width: 220px; }
.filters label { font-size: 13px; color: var(--muted); }
.filters .reset { font-size: 13px; margin-left: auto; }

/* ===== Tablas ===== */
.table-wrap { overflow-x: auto; }
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-card);
  font-size: 13.5px;
}
.data-table th, .data-table td {
  border: 1px solid var(--border);
  padding: 7px 10px;
  text-align: left;
  vertical-align: top;
}
.data-table th { background: var(--bg-soft); font-weight: 600; }
.data-table tbody tr:hover { background: var(--bg-soft); }

/* ===== Pares clave/valor ===== */
.kv { margin: 0; }
.kv dt { font-weight: 600; font-size: 12.5px; color: var(--muted); margin-top: 8px; text-transform: uppercase; letter-spacing: .3px; }
.kv dd { margin: 2px 0 0; }
.kv-list { margin: 0; padding-left: 18px; }
.kv p { margin: 2px 0; }

.obj-list { display: flex; flex-direction: column; gap: 10px; }
.obj-card {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
}
.obj-card .kv dt { margin-top: 4px; }

/* Clúster destacado y listado de propuestas que consolida (página de estrategia) */
.obj-card.featured {
  background: var(--badge-go-bg);
  border: 2px solid var(--badge-go);
  box-shadow: var(--shadow);
  padding: 14px 18px;
}
.cluster-props {
  margin: 12px 0 2px;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.cluster-props > strong {
  display: block;
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: .3px;
  color: var(--muted);
  margin-bottom: 6px;
}
.cluster-props ol { margin: 0; padding-left: 20px; }
.cluster-props li { margin: 8px 0; font-size: 13.5px; line-height: 1.55; }
.cluster-props li:first-child { margin-top: 0; }
.cluster-props .cp-head { display: flex; flex-wrap: wrap; gap: 6px; align-items: baseline; }
.cluster-props .cp-name { font-weight: 600; }
.cluster-props .cp-src { font-size: 11.5px; color: var(--muted); }
.cluster-props .cp-mod {
  font-size: 11px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  white-space: nowrap;
}
.cluster-props .cp-desc { margin: 2px 0 0; color: var(--text); }

/* ===== Panel de evidencia lateral ===== */
.layout { display: grid; grid-template-columns: 1fr 320px; gap: 20px; align-items: start; }
@media (max-width: 900px) { .layout { grid-template-columns: 1fr; } }
.sidebar { display: flex; flex-direction: column; gap: 14px; position: sticky; top: 70px; }
@media (max-width: 900px) { .sidebar { position: static; } }
.side-box { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 14px 16px; }
.side-box h3 { margin: 0 0 10px; font-size: 14px; text-transform: uppercase; letter-spacing: .3px; color: var(--muted); }

.stat { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px dashed var(--border); font-size: 13.5px; }
.stat:last-child { border-bottom: 0; }
.stat .v { font-weight: 600; }
.ok { color: var(--ok); }
.ko { color: var(--ko); }

/* ===== Decisiones destacadas ===== */
.decision-hero {
  background: var(--badge-conditional-bg);
  border: 1px solid var(--badge-conditional);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 20px;
}
.decision-hero.b-go { background: var(--badge-go-bg); border-color: var(--badge-go); }
.decision-hero.b-watch { background: var(--badge-watch-bg); border-color: var(--badge-watch); }
.decision-hero.b-nogo { background: var(--badge-nogo-bg); border-color: var(--badge-nogo); }
.decision-hero.b-none { background: var(--badge-none-bg); border-color: var(--badge-none); }
.decision-hero .d-label { font-size: 12px; text-transform: uppercase; letter-spacing: .4px; color: var(--muted); }
.decision-hero .d-value { font-size: 20px; font-weight: 700; }

code {
  background: var(--code-bg);
  border-radius: 4px;
  padding: 1px 5px;
  font-size: 13px;
}

/* ===== Banner de topic en propuesta.php ===== */
.prop-topic-banner {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border-radius: 12px;
  margin-bottom: 16px;
  background: var(--topic-default-bg);
  border: 1px solid var(--topic-default-border);
}
.prop-topic-banner.topic-terrestrial { background: var(--topic-terrestrial-bg); border-color: var(--topic-terrestrial-border); }
.prop-topic-banner.topic-uav { background: var(--topic-uav-bg); border-color: var(--topic-uav-border); }
.prop-topic-banner.topic-cross { background: var(--topic-cross-bg); border-color: var(--topic-cross-border); }

.prop-topic-num {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 15px;
  color: #fff;
  background: var(--topic-default);
}
.prop-topic-banner.topic-terrestrial .prop-topic-num { background: var(--topic-terrestrial); }
.prop-topic-banner.topic-uav .prop-topic-num { background: var(--topic-uav); }
.prop-topic-banner.topic-cross .prop-topic-num { background: var(--topic-cross); }

.prop-topic-info { flex: 1; min-width: 0; }
.prop-topic-label { font-weight: 700; font-size: 16px; margin-bottom: 4px; }
.prop-topic-desc { font-size: 13px; line-height: 1.5; margin-bottom: 6px; }

.prop-id-combined {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 2px 10px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .5px;
}

/* ===== Metodología ===== */
.methodo h2 { margin-top: 34px; }
.methodo blockquote {
  margin: 12px 0;
  padding: 10px 14px;
  border-left: 3px solid var(--accent);
  background: var(--bg-soft);
  border-radius: 0 8px 8px 0;
  color: var(--muted);
}
.methodo .stage-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; margin: 14px 0; }
.methodo .stage-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; box-shadow: var(--shadow); }
.methodo .stage-card h3 { margin: 0 0 6px; }
.methodo .stage-card .fase-tag { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; }

/* ===== Respuesta sin datos ===== */
.empty {
  background: var(--bg-card);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 34px;
  text-align: center;
  color: var(--muted);
}

/* ===== Metodología: índice y flujo ===== */
.toc {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 18px;
  margin-bottom: 20px;
  font-size: 14px;
}
.toc ul { margin: 8px 0 0; padding-left: 18px; columns: 2; }
@media (max-width: 700px) { .toc ul { columns: 1; } }
.toc li { margin: 2px 0; }

.flow { display: flex; flex-direction: column; gap: 4px; margin: 14px 0 18px; }
.flow-step {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: var(--shadow);
  font-size: 14px;
}
.flow-arrow { text-align: center; color: var(--muted); }

/* ===== Fila separadora de topic en tablas ===== */
.data-table tr.topic-sep td {
  background: var(--topic-default-bg);
  border-bottom: 2px solid var(--topic-default);
  font-size: 14px;
  padding: 10px 12px;
}
.data-table tr.topic-sep.topic-terrestrial td { background: var(--topic-terrestrial-bg); border-bottom-color: var(--topic-terrestrial); }
.data-table tr.topic-sep.topic-uav td { background: var(--topic-uav-bg); border-bottom-color: var(--topic-uav); }
.data-table tr.topic-sep.topic-cross td { background: var(--topic-cross-bg); border-bottom-color: var(--topic-cross); }

/* Filas de topics en tabla de metodología */
.data-table tr.topic-terrestrial td:first-child { border-left: 4px solid var(--topic-terrestrial); }
.data-table tr.topic-uav td:first-child { border-left: 4px solid var(--topic-uav); }
.data-table tr.topic-cross td:first-child { border-left: 4px solid var(--topic-cross); }
.data-table tr.topic-default td:first-child { border-left: 4px solid var(--topic-default); }

/* ===== Configuración de búsqueda del topic (resumen.php) ===== */
.topic-search-config {
  margin-top: 14px;
  padding: 14px 16px;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 13px;
}
.tsc-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 8px 0;
}
.tsc-row + .tsc-row {
  border-top: 1px dashed var(--border);
  margin-top: 4px;
}
.tsc-label {
  flex-shrink: 0;
  width: 140px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .3px;
  font-size: 11px;
  padding-top: 3px;
}
.tsc-value { flex: 1; }
.tsc-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tsc-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
  line-height: 1.4;
}
.tsc-tag.tsc-must {
  background: rgba(11, 92, 173, .10);
  color: var(--accent);
  border: 1px solid rgba(11, 92, 173, .25);
}
.tsc-tag.tsc-edge {
  background: rgba(10, 122, 51, .10);
  color: var(--ok);
  border: 1px solid rgba(10, 122, 51, .25);
}
.tsc-tag.tsc-excl {
  background: rgba(176, 42, 42, .08);
  color: var(--ko);
  border: 1px solid rgba(176, 42, 42, .20);
  text-decoration: line-through;
  text-decoration-color: rgba(176, 42, 42, .35);
}