:root {
  --verde: #2F6E5A;
  --verde-osc: #245546;
  --verde-claro: #E6F0EC;
  --fondo: #F5F5F5;
  --borde: #E3E3E3;
  --texto: #222;
  --gris: #666;
  --ambar: #FFF4DC;
  --ambar-borde: #ED9749;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 70px; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 15px/1.6 "Segoe UI", Tahoma, Arial, sans-serif; }
a { color: var(--verde); }

.cab { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 24px; padding: 0 20px; height: 54px; background: var(--verde); color: #fff; }
.marca { color: #fff; text-decoration: none; font-weight: 600; font-size: 18px; white-space: nowrap; }
.centro { color: rgba(255,255,255,.85); text-decoration: none; font-size: 13px; white-space: nowrap; }
.centro:hover { color: #fff; text-decoration: underline; }
.busca { position: relative; flex: 1; max-width: 560px; }
.busca input[type=search] { width: 100%; height: 34px; border: 0; border-radius: 17px; padding: 0 16px; font: inherit; background: rgba(255,255,255,.95); color: var(--texto); }
.busca input[type=search]:focus { outline: 2px solid #fff; }
.res { position: absolute; left: 0; right: 0; top: 40px; max-height: 70vh; overflow: auto; background: #fff; color: var(--texto); border: 1px solid var(--borde); border-radius: 8px; box-shadow: 0 8px 24px rgba(0,0,0,.18); }
.res .opc { padding: 8px 14px; border-bottom: 1px solid var(--borde); font-size: 13px; color: var(--gris); display: flex; gap: 8px; align-items: center; }
.res a.r { display: block; padding: 9px 14px; text-decoration: none; color: inherit; border-bottom: 1px solid #f0f0f0; }
.res a.r:hover, .res a.r.sel { background: var(--verde-claro); }
.res .rt { font-weight: 600; color: var(--verde-osc); }
.res .rm { font-size: 12px; color: var(--gris); }
.res .rx { font-size: 13px; color: #444; }
.res mark { background: #FFE58F; padding: 0 1px; }
.res .nada { padding: 14px; color: var(--gris); }

.marco { display: grid; grid-template-columns: 250px minmax(0, 1fr) 210px; gap: 24px; max-width: 1380px; margin: 0 auto; padding: 20px; align-items: start; }
.lateral { position: sticky; top: 74px; max-height: calc(100vh - 90px); overflow: auto; background: #fff; border: 1px solid var(--borde); border-radius: 8px; padding: 10px 6px; }
.lateral .mod > .modtit { display: block; padding: 7px 12px; border-radius: 6px; text-decoration: none; color: var(--texto); font-weight: 600; }
.lateral .mod > .modtit:hover { background: var(--fondo); }
.lateral .mod.abierto > .modtit { color: var(--verde); }
.lateral ul { list-style: none; margin: 0 0 6px; padding: 0 0 0 10px; border-left: 2px solid var(--borde); margin-left: 14px; }
.lateral li a { display: block; padding: 4px 10px; border-radius: 6px; text-decoration: none; color: #444; font-size: 14px; }
.lateral li a:hover { background: var(--fondo); }
.lateral li a.activa { background: var(--verde-claro); color: var(--verde-osc); font-weight: 600; }

.contenido { background: #fff; border: 1px solid var(--borde); border-radius: 8px; border-left: 4px solid var(--verde); padding: 22px 34px 30px; min-width: 0; }
.migas { font-size: 13px; color: var(--gris); margin-bottom: 6px; }
.migas a { color: var(--gris); }
h1 { font-weight: 600; font-size: 28px; color: var(--verde); margin: 4px 0 6px; line-height: 1.25; }
.resumen { color: var(--gris); font-size: 16px; margin: 0 0 18px; }
h2 { font-weight: 600; font-size: 20px; color: var(--verde); margin: 30px 0 8px; padding-bottom: 5px; border-bottom: 1px solid var(--borde); }
h3 { font-weight: 600; font-size: 16px; color: var(--verde-osc); margin: 22px 0 4px; }
p { margin: 8px 0; }
ul, ol { margin: 8px 0; padding-left: 24px; }
li { margin: 3px 0; }
code { background: #F0F0F0; border-radius: 4px; padding: 1px 5px; font-family: Consolas, monospace; font-size: 13.5px; }
strong { font-weight: 600; }

.nota { background: var(--verde-claro); border-left: 4px solid var(--verde); border-radius: 4px; padding: 6px 14px; margin: 14px 0; }
.nota p { margin: 6px 0; }
.foto-pendiente { border: 2px dashed var(--ambar-borde); background: var(--ambar); border-radius: 6px; padding: 14px; margin: 14px 0; color: #7a4a10; }
.tabla { overflow-x: auto; margin: 12px 0; }
table { border-collapse: collapse; width: 100%; font-size: 14px; }
th { text-align: left; background: var(--verde); color: #fff; font-weight: 600; padding: 7px 10px; }
td { padding: 7px 10px; border-bottom: 1px solid var(--borde); vertical-align: top; }
tbody tr:nth-child(even) td { background: #FAFAFA; }
img { max-width: 100%; height: auto; border: 1px solid var(--borde); border-radius: 6px; margin: 8px 0; cursor: zoom-in; display: block; }

.tarjetas { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; margin: 22px 0 6px; }
.tarjeta { display: flex; flex-direction: column; gap: 4px; background: #fff; border: 1px solid var(--borde); border-left: 4px solid var(--verde); border-radius: 8px; padding: 12px 14px; text-decoration: none; color: inherit; }
.tarjeta:hover { background: var(--verde-claro); }
.tarjeta .tt { font-weight: 600; color: var(--verde-osc); }
.tarjeta .tr { font-size: 13.5px; color: var(--gris); }
.tarjeta .tn { font-size: 12px; color: var(--verde); margin-top: auto; }

.derecha { position: sticky; top: 74px; font-size: 13px; }
.toc { border-left: 2px solid var(--borde); padding-left: 12px; }
.toc-tit { font-weight: 600; color: var(--gris); text-transform: uppercase; font-size: 11px; letter-spacing: .05em; margin-bottom: 6px; }
.toc ul { list-style: none; padding: 0; margin: 0; }
.toc li { margin: 2px 0; }
.toc li.n3 { padding-left: 12px; }
.toc a { color: #555; text-decoration: none; }
.toc a:hover { color: var(--verde); }

.pasos { display: flex; justify-content: space-between; gap: 12px; margin-top: 18px; }
.pasos a { flex: 0 1 48%; border: 1px solid var(--borde); border-radius: 8px; padding: 10px 14px; background: #fff; text-decoration: none; color: var(--verde-osc); font-weight: 600; }
.pasos a:hover { background: var(--verde-claro); }
.pasos a span { display: block; font-size: 12px; color: var(--gris); font-weight: 400; }
.pasos .sig { text-align: right; margin-left: auto; }

.zoom { position: fixed; inset: 0; z-index: 50; background: rgba(0,0,0,.8); display: flex; align-items: center; justify-content: center; cursor: zoom-out; padding: 20px; }
.zoom[hidden] { display: none; }
.zoom img { max-width: 100%; max-height: 100%; cursor: zoom-out; border: 0; margin: 0; }

@media (max-width: 1100px) { .marco { grid-template-columns: 220px minmax(0, 1fr); } .derecha { display: none; } }
@media (max-width: 760px) {
  .marco { grid-template-columns: 1fr; padding: 10px; }
  .lateral { position: static; max-height: none; }
  .contenido { padding: 16px 16px 24px; }
  .cab { gap: 10px; }
}
@media print {
  .cab, .lateral, .derecha, .pasos { display: none; }
  .marco { display: block; padding: 0; }
  .contenido { border: 0; }
}