/* ============================================================
   amaru_fo — Centro de Recursos del Formulador
   Estética: institucional, sobria, técnica y confiable.
   ============================================================ */

:root {
  /* Paleta roja institucional (compacta, sobre fondo claro) */
  --navy: #7f1d1d;        /* rojo oscuro: títulos */
  --navy-700: #5b1414;    /* rojo muy oscuro: footer / pre */
  --teal: #dc2626;        /* rojo primario: enlaces y acentos */
  --teal-600: #b91c1c;    /* rojo hover */
  --accent: #f59e0b;      /* ámbar: badges / CTA (contraste) */
  --slate: #3f3f46;
  --slate-2: #71717a;
  --line: #f1dada;        /* línea rosada suave */
  --bg: #ffffff;
  --bg-soft: #fef2f2;     /* rojo pálido */
  --bg-card: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(127, 29, 29, .08), 0 6px 18px rgba(127, 29, 29, .06);
  --shadow-hover: 0 4px 12px rgba(127, 29, 29, .14), 0 14px 34px rgba(127, 29, 29, .12);
  --maxw: 1140px;
  --font: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--slate);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { color: var(--navy); line-height: 1.25; letter-spacing: -.02em; }
a { color: var(--teal); text-decoration: none; }
a:hover { color: var(--teal-600); }
img { max-width: 100%; display: block; }

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--navy); color: #fff; padding: .6rem 1rem; z-index: 1000;
}
.skip-link:focus { left: 8px; top: 8px; }

/* ---------- Navbar ---------- */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.navbar-inner {
  max-width: var(--maxw); margin: 0 auto; padding: .7rem 1.25rem;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.brand { display: flex; align-items: center; gap: .55rem; font-weight: 800; }
.brand-logo { width: 34px; height: 34px; object-fit: contain; }
.brand-name { color: var(--navy); font-size: 1.15rem; }
.brand-accent { color: var(--teal); }

.nav-menu ul { list-style: none; display: flex; gap: .35rem; margin: 0; padding: 0; }
.nav-menu li { position: relative; }
.nav-menu a, .nav-parent {
  display: block; padding: .5rem .8rem; border-radius: var(--radius-sm);
  color: var(--slate); font-weight: 600; font-size: .94rem;
}
.nav-parent {
  background: none; border: 0; cursor: pointer; font-family: var(--font);
  display: inline-flex; align-items: center; gap: .3rem;
}
.nav-caret { font-size: .7rem; transition: transform .15s ease; }
.has-children.open .nav-parent .nav-caret { transform: rotate(180deg); }
.nav-menu a:hover, .nav-menu a[aria-current="page"],
.nav-parent:hover, .has-children.open .nav-parent { background: var(--bg-soft); color: var(--navy); }

.submenu {
  position: absolute; top: 100%; left: 0; min-width: 230px;
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm);
  box-shadow: var(--shadow); padding: .4rem; display: none; flex-direction: column;
}
.has-children.open > .submenu { display: flex; }
.submenu a { font-weight: 500; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: .25s; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-700) 55%, var(--teal) 140%);
  color: #fff; padding: 4.5rem 1.25rem 4rem;
}
.hero-inner { max-width: var(--maxw); margin: 0 auto; }
.hero h1 { color: #fff; font-size: clamp(1.9rem, 4vw, 3rem); margin: 0 0 1rem; max-width: 18ch; }
.hero p { color: #d7e3ec; font-size: clamp(1rem, 1.6vw, 1.18rem); max-width: 58ch; margin: 0 0 1.8rem; }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; }
.hero-search {
  margin-top: 2rem; display: flex; gap: .5rem; max-width: 540px;
  background: #fff; border-radius: var(--radius); padding: .4rem; box-shadow: var(--shadow);
}
.hero-search input { flex: 1; border: 0; outline: 0; padding: .6rem .9rem; font-size: 1rem; font-family: var(--font); }

/* ---------- Botones ---------- */
.btn {
  display: inline-block; padding: .7rem 1.3rem; border-radius: var(--radius-sm);
  font-weight: 700; font-size: .95rem; cursor: pointer; border: 2px solid transparent; transition: .2s;
}
.btn-primary { background: var(--accent); color: var(--navy-700); }
.btn-primary:hover { background: #f0b357; color: var(--navy-700); transform: translateY(-1px); }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { border-color: #fff; color: #fff; }
.btn-ghost { background: var(--bg-soft); color: var(--navy); }
.btn-ghost:hover { background: #e8eef3; }

/* ---------- Secciones ---------- */
.section { max-width: var(--maxw); margin: 0 auto; padding: 2.4rem 1.25rem; }
.section.soft-bg { max-width: none; background: var(--bg-soft); }
.section.soft-bg > * { max-width: var(--maxw); margin-left: auto; margin-right: auto; }
.section-head { margin-bottom: 1.8rem; }
.section-head h2 { font-size: clamp(1.4rem, 2.5vw, 1.9rem); margin: 0 0 .4rem; }
.section-head p { color: var(--slate-2); margin: 0; }
.section-head .more { float: right; font-weight: 700; }

/* ---------- Grids ---------- */
.grid { display: grid; gap: 1.2rem; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ---------- Accesos directos ---------- */
.acceso {
  display: block; background: var(--bg-card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.4rem; box-shadow: var(--shadow);
  transition: .2s; height: 100%;
}
.acceso:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); border-color: var(--teal); }
.acceso-icono { font-size: 1.8rem; display: block; margin-bottom: .6rem; }
.acceso h3 { font-size: 1.08rem; margin: 0 0 .3rem; }
.acceso p { color: var(--slate-2); font-size: .9rem; margin: 0; }

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card); border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow); transition: .2s; display: flex; flex-direction: column;
}
.card:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.card-media img { width: 100%; height: 170px; object-fit: cover; }
.card-body { padding: 1.2rem; display: flex; flex-direction: column; gap: .5rem; flex: 1; }
.card-tag {
  align-self: flex-start; background: var(--bg-soft); color: var(--teal-600);
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em;
  padding: .25rem .6rem; border-radius: 999px;
}
.card-title { font-size: 1.12rem; margin: 0; }
.card-date { color: var(--slate-2); font-size: .82rem; }
.card-text { color: var(--slate-2); font-size: .92rem; margin: 0; flex: 1; }
.card-link { font-weight: 700; font-size: .9rem; }
.card-meta { font-size: .8rem; color: var(--slate-2); }
.card-status { font-weight: 700; color: var(--teal-600); }

/* ---------- Documentos normativos (lista) ---------- */
.doc-card {
  background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--teal);
  border-radius: var(--radius-sm); padding: 1.2rem 1.3rem; box-shadow: var(--shadow); transition: .2s;
}
.doc-card:hover { box-shadow: var(--shadow-hover); }
.doc-card h3 { font-size: 1.05rem; margin: 0 0 .4rem; }
.doc-card p { color: var(--slate-2); font-size: .9rem; margin: 0 0 .8rem; }
.doc-meta { display: flex; gap: .5rem; margin-bottom: .8rem; flex-wrap: wrap; }
.pill { font-size: .73rem; font-weight: 700; padding: .2rem .6rem; border-radius: 999px; background: var(--bg-soft); color: var(--slate); }
.pill.ok { background: #e3f3e8; color: #1d7a45; }

/* ---------- Videos ---------- */
.video-embed { position: relative; padding-bottom: 56.25%; height: 0; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); }
.video-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

/* ---------- Páginas internas ---------- */
.page-wrap { max-width: var(--maxw); margin: 0 auto; padding: 2.2rem 1.25rem; }
.page-wrap.narrow { max-width: 760px; }
.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.page-subtitle { color: var(--slate-2); font-size: 1.1rem; }

.prose { font-size: 1.02rem; }
.prose h2 { margin-top: 2.2rem; }
.prose img { border-radius: var(--radius-sm); box-shadow: var(--shadow); margin: 1.2rem 0; }
.prose blockquote { border-left: 4px solid var(--teal); background: var(--bg-soft); margin: 1.2rem 0; padding: .8rem 1.2rem; color: var(--slate); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }
.prose code { background: var(--bg-soft); padding: .15rem .4rem; border-radius: 5px; font-size: .9em; }
.prose pre { background: var(--navy-700); color: #e2e8f0; padding: 1rem 1.2rem; border-radius: var(--radius-sm); overflow-x: auto; }
.prose pre code { background: none; color: inherit; }

/* ---------- Post / proyecto ---------- */
.post-header { margin-bottom: 1.6rem; }
.post-cover { width: 100%; border-radius: var(--radius); margin-top: 1.2rem; box-shadow: var(--shadow); }
.post-meta { color: var(--slate-2); font-size: .9rem; }
.project-actions { display: flex; gap: .7rem; flex-wrap: wrap; margin: 1.4rem 0; }
.stack-list { list-style: none; display: flex; flex-wrap: wrap; gap: .5rem; padding: 0; margin: 0 0 1.6rem; }
.stack-list li { background: var(--bg-soft); color: var(--navy); font-size: .82rem; font-weight: 600; padding: .3rem .7rem; border-radius: 999px; }
.tag-list { display: flex; gap: .5rem; flex-wrap: wrap; margin-top: 1.5rem; }
.tag { color: var(--teal-600); font-weight: 600; font-size: .85rem; }
.back-link { display: inline-block; margin-top: 2rem; font-weight: 700; }

/* ---------- Sobre mí / contacto ---------- */
.profile-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 2.5rem; }
.contact-card { background: var(--bg-soft); border-radius: var(--radius); padding: 1.6rem; }
.contact-card label { display: block; font-weight: 600; font-size: .9rem; margin: .8rem 0 .3rem; color: var(--navy); }
.contact-card input, .contact-card textarea {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--line); border-radius: var(--radius-sm);
  font-family: var(--font); font-size: .95rem;
}
.social-links { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1rem; }
.social-links a { background: #fff; border: 1px solid var(--line); padding: .5rem .9rem; border-radius: 999px; font-weight: 600; font-size: .9rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-700); color: #c7d6e0; margin-top: 4rem; }
.footer-inner { max-width: var(--maxw); margin: 0 auto; padding: 3rem 1.25rem 2rem; display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 2rem; }
.footer-col h4 { color: #fff; font-size: .95rem; margin: 0 0 .8rem; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: .4rem; }
.footer-col a { color: #c7d6e0; font-size: .92rem; }
.footer-col a:hover { color: #fff; }
.footer-brand { font-weight: 800; font-size: 1.3rem; color: #fff; }
.brand-accent { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); padding: 1rem 1.25rem; text-align: center; font-size: .85rem; }

/* ---------- WhatsApp flotante ---------- */
.whatsapp-float {
  position: fixed; bottom: 22px; right: 22px; z-index: 200;
  width: 56px; height: 56px; border-radius: 50%; background: #25D366;
  display: grid; place-items: center; font-size: 1.6rem; box-shadow: 0 6px 18px rgba(0,0,0,.25);
  transition: .2s;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* ---------- Listas de secciones ---------- */
.section-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 1rem; }

/* ============================================================
   ÁRBOL DE RECURSOS (estilo explorador de archivos)
   ============================================================ */
.hero--compact .hero-inner { display: flex; align-items: center; gap: 1.2rem; }
.hero--compact .hero-logo { border-radius: 14px; flex: 0 0 auto; background: #fff; padding: 6px; box-shadow: var(--shadow); }
.hero--compact h1 { font-size: clamp(1.4rem, 2.6vw, 2.1rem); margin: 0 0 .4rem; }
.hero--compact .hero-text p { margin: 0; }

.section--tree { padding-top: 1.2rem; }

.tree-toolbar { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .9rem; }
.tree-search {
  flex: 1 1 280px; min-width: 220px; padding: .6rem .9rem;
  border: 1px solid var(--line); border-radius: 999px; font: inherit; font-size: .95rem;
}
.tree-search:focus { outline: 2px solid var(--teal); border-color: var(--teal); }
.tree-btn {
  border: 1px solid var(--line); background: #fff; color: var(--navy);
  padding: .55rem .9rem; border-radius: 999px; font-weight: 600; font-size: .85rem; cursor: pointer;
}
.tree-btn:hover { background: var(--bg-soft); border-color: var(--teal); }

.tree-legend {
  display: flex; flex-wrap: wrap; gap: 1rem; margin: 1rem 0 .4rem;
  font-size: .8rem; color: var(--slate-2);
}
.tree-legend > span { display: inline-flex; align-items: center; gap: .35rem; }

/* Icono base */
.tree-ico {
  flex: 0 0 auto; width: 26px; height: 22px; display: inline-grid; place-items: center;
  font-size: .95rem; line-height: 1;
}
.ico-pdf {
  width: 30px; height: 20px; border-radius: 4px; background: #d7263d; color: #fff;
  font-size: .62rem; font-weight: 800; letter-spacing: .03em;
}
.ico-app, .ico-law, .ico-form, .ico-web, .ico-video, .ico-contact, .ico-article, .ico-db { font-size: 1rem; }

/* Estructura del árbol */
.tree, .tree-children { list-style: none; margin: 0; padding: 0; }
.tree {
  margin-top: .6rem; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: .5rem .4rem; box-shadow: var(--shadow);
}
/* Color identificador heredado por categoría */
.tree-branch { --cat: var(--teal); }
.tree > .tree-branch {
  border-left: 3px solid var(--cat); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: .15rem 0; padding-left: .15rem;
}
.tree-children {
  margin-left: 1.05rem; border-left: 1px dashed color-mix(in srgb, var(--cat) 45%, var(--line));
  padding-left: .55rem;
}

.tree-row {
  display: flex; align-items: center; gap: .55rem;
  padding: .34rem .5rem; border-radius: var(--radius-sm); width: 100%;
}
.tree-text { display: flex; flex-direction: column; min-width: 0; }
.tree-label { font-weight: 600; color: var(--navy); font-size: .94rem; line-height: 1.25; }
.tree-desc { font-size: .79rem; color: var(--slate-2); line-height: 1.2; }

/* Carpetas */
.tree-branch > details > summary { list-style: none; cursor: pointer; }
.tree-branch > details > summary::-webkit-details-marker { display: none; }
.tree-folder:hover { background: color-mix(in srgb, var(--cat) 8%, #fff); }
.tree-twist {
  width: 14px; height: 14px; flex: 0 0 auto; position: relative;
}
.tree-twist::before {
  content: "▸"; color: var(--cat); font-size: .8rem; transition: transform .15s ease; display: inline-block;
}
.tree-branch > details[open] > summary .tree-twist::before { transform: rotate(90deg); }
.tree-folder .ico-folder { filter: saturate(0); }
.tree-folder .tree-label {
  color: var(--cat); font-weight: 700;
}

/* Hojas (enlaces directos) */
.tree-link { color: inherit; transition: background .12s ease; }
.tree-link:hover { background: color-mix(in srgb, var(--cat) 9%, #fff); }
.tree-link:hover .tree-label { color: var(--cat); text-decoration: underline; }
.tree-link .tree-twist { visibility: hidden; }
.tree-thumb { width: 28px; height: 28px; border-radius: 6px; object-fit: cover; flex: 0 0 auto; border: 1px solid var(--line); }

.tree-badge {
  display: inline-block; margin-left: .4rem; background: var(--accent); color: #3d2a00;
  font-size: .62rem; font-weight: 800; padding: .08rem .4rem; border-radius: 999px; vertical-align: middle;
}
.tree-ext { color: var(--slate-2); font-size: .8rem; margin-left: .25rem; }

.tree-empty { text-align: center; color: var(--slate-2); padding: 1.2rem; }

/* Responsive */
@media (max-width: 760px) {
  .hero--compact .hero-inner { flex-direction: row; align-items: flex-start; }
  .tree-desc { display: none; }
  .tree-children { margin-left: .7rem; }
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .profile-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; top: 100%; left: 0; right: 0; background: #fff;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow);
    max-height: 0; overflow: hidden; transition: max-height .3s ease;
  }
  .nav-menu.open { max-height: 80vh; overflow-y: auto; }
  .nav-menu ul { flex-direction: column; padding: .6rem; }
  .submenu { position: static; display: none; box-shadow: none; border: 0; padding-left: 1rem; }
  .has-children.open > .submenu { display: flex; }
  .nav-parent { width: 100%; justify-content: space-between; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
}