/* =====================================================================
   SGC UNIPUTUMAYO - Portal público de documentos
   Estilo inspirado en el Repositorio Digital institucional.
   ===================================================================== */

:root {
  --azul-900: #0b2447;
  --azul-800: #0f3163;
  --azul-700: #134089;
  --azul-600: #1b56b3;
  --azul-100: #e8eef8;
  --azul-50:  #f4f7fc;
  --amarillo: #f6b221;
  --amarillo-osc: #e09c0b;
  --verde: #2e7d32;
  --tinta: #1b2533;
  --tinta-2: #4a5566;
  --tinta-3: #6b7686;
  --borde: #dfe5ee;
  --blanco: #ffffff;
  --radio: 14px;
  --radio-sm: 10px;
  --sombra: 0 10px 30px rgba(11, 36, 71, .12);
  --sombra-sm: 0 2px 8px rgba(11, 36, 71, .08);
  --fuente: "Plus Jakarta Sans", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--fuente);
  color: var(--tinta);
  background: var(--azul-50);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--azul-700); }
img { max-width: 100%; display: block; }
.contenedor { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 20px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--amarillo); outline-offset: 2px; border-radius: 6px; }

/* ---------- Encabezado ---------- */
.barra {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: saturate(160%) blur(8px);
  border-bottom: 1px solid var(--borde);
}
.barra .contenedor { display: flex; align-items: center; gap: 28px; height: 76px; }
.marca { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--azul-900); }
.marca-logo {
  width: 52px; height: 52px; border-radius: 12px; background: var(--blanco);
  box-shadow: var(--sombra-sm); border: 1px solid var(--borde);
  display: grid; place-items: center; flex: none;
}
.marca-logo img { width: 42px; height: 42px; }
.marca-texto strong { display: block; font-size: 17px; line-height: 1.15; color: var(--azul-900); }
.marca-texto small { display: block; font-size: 10.5px; line-height: 1.25; letter-spacing: .02em; text-transform: uppercase; color: var(--tinta-3); font-weight: 600; }
.menu { display: flex; gap: 6px; margin: 0; padding: 0; list-style: none; }
.menu a {
  display: block; padding: 10px 14px; border-radius: 10px;
  color: var(--azul-800); text-decoration: none; font-weight: 600; font-size: 15px;
}
.menu a:hover { background: var(--azul-100); }
.barra-acciones { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.icono-btn {
  width: 42px; height: 42px; border-radius: 50%; border: 0; background: transparent;
  color: var(--azul-700); font-size: 18px; cursor: pointer; display: grid; place-items: center; text-decoration: none;
}
.icono-btn:hover { background: var(--azul-100); }
.btn-sesion {
  display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: 999px;
  color: var(--azul-700); font-weight: 700; text-decoration: none; border: 1.5px solid var(--azul-100);
}
.btn-sesion:hover { background: var(--azul-100); }
.menu-toggle { display: none; }

/* ---------- Portada (hero) ---------- */
.portada {
  position: relative; overflow: hidden; color: var(--blanco);
  background:
    linear-gradient(100deg, rgba(11,36,71,.96) 0%, rgba(15,49,99,.90) 45%, rgba(19,64,137,.72) 100%),
    url("../img/portada.jpg") center/cover no-repeat,
    radial-gradient(1200px 500px at 85% 20%, #1f5fbf 0%, transparent 60%),
    var(--azul-900);
}
.portada::after { /* trama sutil */
  content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .08;
  background-image: radial-gradient(#fff 1px, transparent 1px);
  background-size: 22px 22px;
}
.portada .contenedor {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center;
  padding-top: 64px; padding-bottom: 72px;
}
.portada .contenedor > * { min-width: 0; }
.sello { display: inline-flex; align-items: center; gap: 14px; margin-bottom: 22px; }
.sello-logo {
  width: 72px; height: 72px; border-radius: 16px; background: var(--blanco);
  display: grid; place-items: center; box-shadow: 0 8px 24px rgba(0,0,0,.25);
}
.sello-logo img { width: 58px; height: 58px; }
.sello small { display: block; color: var(--amarillo); font-weight: 800; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.sello strong { display: block; font-size: 17px; letter-spacing: .02em; }
.portada h1 { font-size: clamp(40px, 6vw, 72px); line-height: 1.02; margin: 0 0 18px; font-weight: 800; letter-spacing: -.02em; }
.portada p.lead { font-size: 19px; max-width: 580px; color: rgba(255,255,255,.88); margin: 0 0 28px; }

.buscador-hero { display: flex; gap: 10px; max-width: 600px; margin-bottom: 18px; }
.buscador-hero .campo {
  flex: 1; display: flex; align-items: center; gap: 10px; background: var(--blanco); border-radius: 999px;
  padding: 0 18px; box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.buscador-hero .campo i { color: var(--tinta-3); }
.buscador-hero input {
  flex: 1; border: 0; outline: 0; background: transparent; height: 54px; font: inherit; font-size: 16px; color: var(--tinta);
}
.acciones-hero { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 14px 24px; border-radius: 999px;
  font: inherit; font-weight: 700; font-size: 16px; cursor: pointer; text-decoration: none; border: 2px solid transparent;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-amarillo { background: var(--amarillo); color: var(--azul-900); box-shadow: 0 6px 18px rgba(246,178,33,.35); }
.btn-amarillo:hover { background: #ffc03a; }
.btn-contorno { background: transparent; color: var(--blanco); border-color: rgba(255,255,255,.75); }
.btn-contorno:hover { background: rgba(255,255,255,.1); }
.btn-azul { background: var(--azul-700); color: var(--blanco); }
.btn-azul:hover { background: var(--azul-600); }
.btn-sm { padding: 8px 14px; font-size: 14px; }
.btn-suave { background: var(--azul-100); color: var(--azul-700); }
.btn-suave:hover { background: #d9e3f5; }

/* Tarjeta de navegación */
.navegar {
  background: rgba(255,255,255,.97); color: var(--tinta); border-radius: 18px; padding: 22px; box-shadow: var(--sombra);
}
.navegar-cab { display: flex; align-items: center; gap: 14px; padding-bottom: 16px; margin-bottom: 16px; border-bottom: 1px solid var(--borde); }
.navegar-cab .ico { width: 44px; height: 44px; border-radius: 12px; background: #e7f3e8; color: var(--verde); display: grid; place-items: center; font-size: 18px; }
.navegar-cab small { display: block; color: var(--verde); font-weight: 800; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.navegar-cab strong { display: block; color: var(--azul-800); font-size: 18px; }
.tiles { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.tile {
  display: flex; align-items: center; gap: 12px; padding: 14px; border-radius: 12px; border: 1px solid var(--borde);
  background: var(--blanco); color: var(--tinta); text-decoration: none; font-weight: 700; cursor: pointer; font: inherit; text-align: left;
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.tile:hover { border-color: var(--azul-600); box-shadow: var(--sombra-sm); transform: translateY(-1px); }
.tile .ico { width: 40px; height: 40px; border-radius: 10px; background: var(--azul-800); color: var(--blanco); display: grid; place-items: center; font-size: 17px; flex: none; }
.tile span.t { display: block; font-weight: 700; font-size: 15px; }
.tile > span:last-child { min-width: 0; }
.tile span.n { display: block; font-weight: 500; font-size: 12.5px; color: var(--tinta-3); }

/* ---------- Franja de accesos ---------- */
.franja { background: var(--blanco); border-bottom: 1px solid var(--borde); }
.franja ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); }
.franja li { text-align: center; padding: 20px 10px; }
.franja strong { display: block; font-size: 28px; color: var(--azul-800); line-height: 1.1; }
.franja span { color: var(--tinta-2); font-weight: 600; font-size: 14px; display: inline-flex; gap: 8px; align-items: center; }
.franja i { color: var(--verde); }

/* ---------- Secciones ---------- */
.seccion { padding: 56px 0; }
.seccion-cab { display: flex; align-items: end; justify-content: space-between; gap: 20px; margin-bottom: 26px; flex-wrap: wrap; }
.seccion-cab small { display: block; color: var(--verde); font-weight: 800; font-size: 12px; letter-spacing: .06em; text-transform: uppercase; }
.seccion-cab h2 { margin: 4px 0 0; font-size: 30px; color: var(--azul-900); letter-spacing: -.01em; }
.seccion-cab p { margin: 6px 0 0; color: var(--tinta-2); }

.procesos { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.proceso {
  display: flex; align-items: center; gap: 14px; padding: 16px; border-radius: var(--radio); background: var(--blanco);
  border: 1px solid var(--borde); text-align: left; cursor: pointer; font: inherit; color: var(--tinta);
  transition: border-color .15s, box-shadow .15s, transform .15s;
}
.proceso:hover { border-color: var(--azul-600); box-shadow: var(--sombra-sm); transform: translateY(-2px); }
.proceso .ico { width: 46px; height: 46px; border-radius: 12px; background: var(--azul-100); color: var(--azul-700); display: grid; place-items: center; font-size: 19px; flex: none; }
.proceso strong { display: block; font-size: 14.5px; line-height: 1.3; }
.proceso span { display: block; color: var(--tinta-3); font-size: 13px; }

/* ---------- Documentos ---------- */
.filtros {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr auto; gap: 12px; padding: 16px; margin-bottom: 18px;
  background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio); box-shadow: var(--sombra-sm);
}
.filtros label { display: block; font-size: 12px; font-weight: 700; color: var(--tinta-3); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 6px; }
.control {
  width: 100%; height: 46px; border: 1px solid var(--borde); border-radius: var(--radio-sm); padding: 0 14px;
  font: inherit; font-size: 15px; color: var(--tinta); background: var(--blanco);
}
.control:focus { outline: 0; border-color: var(--azul-600); box-shadow: 0 0 0 3px rgba(27,86,179,.15); }
.filtros .limpiar { align-self: end; height: 46px; }

.resumen { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 12px; color: var(--tinta-2); font-size: 14px; flex-wrap: wrap; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 5px 10px; border-radius: 999px; background: var(--azul-100); color: var(--azul-800); font-weight: 600; font-size: 13px; border: 0; cursor: pointer; font-family: inherit; }

.lista { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.doc {
  display: grid; grid-template-columns: auto 1fr auto; gap: 16px; align-items: center;
  padding: 14px 16px; background: var(--blanco); border: 1px solid var(--borde); border-radius: var(--radio);
  transition: border-color .15s, box-shadow .15s;
}
.doc:hover { border-color: #c5d3ea; box-shadow: var(--sombra-sm); }
.doc-ico { width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; font-size: 20px; }
.doc-ico.pdf  { background: #fdecea; color: #c62828; }
.doc-ico.word { background: #e8f0fe; color: #1a56c4; }
.doc-ico.excel{ background: #e7f5ea; color: #1e7b34; }
.doc-ico.ppt  { background: #fff1e6; color: #c2570c; }
.doc-ico.otro { background: var(--azul-100); color: var(--azul-700); }
.doc-titulo { margin: 0 0 4px; font-size: 15.5px; font-weight: 700; color: var(--tinta); word-break: break-word; }
.doc-meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 13px; color: var(--tinta-3); }
.doc-meta span { display: inline-flex; align-items: center; gap: 6px; }
.etiqueta { padding: 2px 9px; border-radius: 999px; background: #fff6df; color: #8a5a00; font-weight: 700; font-size: 12px; }
.doc-acciones { display: flex; gap: 8px; }

.vacio { text-align: center; padding: 48px 20px; background: var(--blanco); border: 1px dashed var(--borde); border-radius: var(--radio); color: var(--tinta-2); }
.vacio i { font-size: 36px; color: var(--azul-600); margin-bottom: 10px; }
.mas { display: flex; justify-content: center; margin-top: 20px; }

/* ---------- Pie ---------- */
.pie { background: var(--azul-900); color: rgba(255,255,255,.8); padding: 40px 0 28px; margin-top: 30px; }
.pie .contenedor { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px; }
.pie h3 { color: var(--blanco); font-size: 15px; margin: 0 0 12px; }
.pie a { color: rgba(255,255,255,.85); text-decoration: none; }
.pie a:hover { color: var(--amarillo); }
.pie ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 14px; }
.pie-marca { display: flex; gap: 14px; align-items: center; margin-bottom: 12px; }
.pie-marca .marca-logo { width: 48px; height: 48px; }
.pie-marca strong { color: var(--blanco); display: block; }
.pie-legal { border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding-top: 18px; font-size: 13px; text-align: center; color: rgba(255,255,255,.6); }

/* ---------- Adaptación a pantallas pequeñas ---------- */
@media (max-width: 980px) {
  .portada .contenedor { grid-template-columns: 1fr; gap: 32px; padding-top: 44px; padding-bottom: 48px; }
  .filtros { grid-template-columns: 1fr 1fr; }
  .filtros .f-texto { grid-column: 1 / -1; }
  .pie .contenedor { grid-template-columns: 1fr 1fr; }
  .pie .contenedor > div:first-child { grid-column: 1 / -1; }
}
@media (max-width: 760px) {
  .menu { display: none; position: absolute; top: 76px; left: 0; right: 0; background: var(--blanco); flex-direction: column; padding: 10px 20px 16px; border-bottom: 1px solid var(--borde); box-shadow: var(--sombra-sm); }
  .menu.abierto { display: flex; }
  .menu-toggle { display: grid; }
  .barra .contenedor { gap: 10px; }
  .barra-acciones { gap: 2px; }
  .btn-sesion { padding: 10px 12px; }
  .marca-texto strong { font-size: 15px; }
  .portada h1 { font-size: 40px; }
  .portada p.lead { font-size: 17px; }
  .acciones-hero .btn { flex: 1 1 auto; }
  .tile { padding: 12px; gap: 8px; flex-direction: column; align-items: flex-start; min-width: 0; }
  .tile .ico { width: 34px; height: 34px; font-size: 15px; }
  .tile span.t { font-size: 14px; }
  .sello-logo { width: 60px; height: 60px; }
  .sello-logo img { width: 48px; height: 48px; }
  .btn-sesion span { display: none; }
  .marca-texto small { display: none; }
  .franja ul { grid-template-columns: 1fr 1fr; }
  .doc { grid-template-columns: auto 1fr; }
  .doc-acciones { grid-column: 1 / -1; }
  .doc-acciones .btn { flex: 1; }
  .buscador-hero { flex-direction: column; }
  .filtros { grid-template-columns: 1fr; }
  .tiles { grid-template-columns: 1fr 1fr; }
  .seccion { padding: 40px 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}