/* ============================================================
   GUÍA DE ESTILOS — UNIVERSIDAD DEL VALLE
   styles.css | Versión 1.0 | Febrero 2026
   ============================================================ */

/* ─── VARIABLES ──────────────────────────────────────────── */
:root {
  /* Colores institucionales */
  --marca:         #95042d;
  --marca-claro:   #c4627a;
  --marca-oscuro:  #6b0020;
  --marca-web:     #b5003a;
  --marca-pale:    #fdf0f3;
  --marca-border:  rgba(149,4,45,0.18);

  /* Bootstrap semánticos — ajustados para contraste WCAG AA */
  --primary:       #0d47a1;
  --secondary:     #455a64;
  --success:       #1b5e20;
  --danger:        #b71c1c;
  --warning:       #e65100;
  --info:          #01579b;
  --light:         #f5f5f5;
  --dark:          #212121;

  /* Superficies */
  --bg:            #ffffff;
  --bg-sidebar:    #f8f9fb;
  --bg-surface:    #ffffff;
  --bg-code:       #f3f4f6;
  --bg-th:         #f0f2f5;
  --border:        #e2e6ec;
  --border-strong: #c8cdd6;

  /* Texto */
  --text-primary:  #1a1a2e;
  --text-body:     #333333;
  --text-muted:    #555566;
  --text-subtle:   #6b7280;
  --text-link:     #95042d;

  /* Sintaxis código */
  --syn-kw:  #6d28d9;
  --syn-fn:  #0369a1;
  --syn-str: #15803d;
  --syn-cm:  #6b7280;
  --syn-num: #c2410c;
  --syn-at:  #92400e;
  --syn-tg:  #7c3aed;
  --syn-vl:  #065f46;
  --syn-cl:  #1e3a8a;

  /* Layout */
  --nav-h:      60px;
  --sidebar-w:  265px;

  /* Tipografía — System UI */
  --font:      system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'Consolas', monospace;

  /* Miscelánea */
  --radius:    8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 14px rgba(0,0,0,0.09);
}

/* ─── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font); font-size: 1rem; line-height: 1.75; color: var(--text-body); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--text-link); text-decoration: underline; text-underline-offset: 3px; transition: color 0.15s; }
a:hover { color: var(--marca-oscuro); }
ul, ol { padding-left: 1.5em; }
li { margin-bottom: 4px; }
strong { color: var(--text-primary); }
p { margin-bottom: 14px; max-width: 72ch; }

/* ─── ACCESIBILIDAD ──────────────────────────────────────── */
.skip-link { position: fixed; top: -120px; left: 16px; z-index: 9999; background: var(--marca); color: #fff; padding: 10px 18px; border-radius: var(--radius); font-weight: 600; text-decoration: none; transition: top 0.2s; }
.skip-link:focus { top: 80px; outline: 3px solid #ffdd00; }
:focus-visible { outline: 3px solid var(--marca); outline-offset: 3px; border-radius: 4px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* ─── NAV SUPERIOR ───────────────────────────────────────── */
.topnav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--nav-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  display: flex; align-items: center;
  padding: 0 20px;
}
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; margin-right: 20px; }
.nav-logo-img { background: #fff; border-radius: 5px; padding: 4px 6px; height: 40px; width: auto; border: 1px solid var(--border); }
.nav-logo-text { font-size: 0.75rem; font-weight: 600; line-height: 1.3; color: var(--text-muted); max-width: 140px; }
.nav-sep { width: 1px; height: 26px; background: var(--border); margin: 0 14px; flex-shrink: 0; }
.nav-title { font-size: 0.85rem; font-weight: 700; color: var(--text-primary); }
.nav-sections { display: flex; align-items: center; gap: 2px; flex: 1; overflow-x: auto; scrollbar-width: none; margin-left: 20px; }
.nav-sections::-webkit-scrollbar { display: none; }
.nav-link { display: inline-block; font-size: 0.81rem; font-weight: 600; color: var(--text-muted); padding: 6px 11px; border-radius: 6px; white-space: nowrap; text-decoration: none; transition: background-color 0.15s, color 0.15s; }
.nav-link:hover { background: var(--marca-pale); color: var(--marca); }
.nav-link.active { background: var(--marca); color: #fff; }
.nav-version { margin-left: auto; font-family: var(--font-mono); font-size: 0.7rem; font-weight: 500; background: var(--marca-pale); color: var(--marca); border: 1px solid var(--marca-border); border-radius: 5px; padding: 3px 8px; white-space: nowrap; flex-shrink: 0; }

/* Hamburguesa */
.nav-hamburger { display: none; background: none; border: none; width: 36px; height: 36px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; cursor: pointer; padding: 4px; margin-right: 6px; }
.nav-hamburger span { display: block; width: 20px; height: 2px; background: var(--text-body); border-radius: 99px; }

/* ─── SIDEBAR ────────────────────────────────────────────── */
.sidebar {
  position: fixed; top: var(--nav-h); left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  overflow-y: auto; padding: 20px 0 60px; z-index: 100;
  transition: transform 0.28s;
  scrollbar-width: thin; scrollbar-color: var(--border) transparent;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
.sb-title { font-size: 0.67rem; font-weight: 700; letter-spacing: 0.11em; text-transform: uppercase; color: var(--text-subtle); padding: 10px 20px 6px; }
.sb-item { display: block; padding: 7px 20px; font-size: 0.84rem; font-weight: 500; color: var(--text-muted); text-decoration: none; border-left: 3px solid transparent; border-radius: 0 6px 6px 0; margin: 1px 8px 1px 0; transition: background-color 0.12s, color 0.12s, border-color 0.12s; line-height: 1.4; }
.sb-item:hover { background: var(--marca-pale); color: var(--marca); border-left-color: rgba(149,4,45,0.25); }
.sb-item.active { background: var(--marca-pale); color: var(--marca); border-left-color: var(--marca); font-weight: 600; }
.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.45); z-index: 90; }
.sidebar-overlay.visible { display: block; }

/* ─── LAYOUT ─────────────────────────────────────────────── */
.main-wrapper { margin-left: var(--sidebar-w); padding-top: var(--nav-h); min-height: 100vh; }
.page-content { max-width: 960px; padding: 48px 60px 80px; margin: 0 auto; }
section[id] { scroll-margin-top: calc(var(--nav-h) + 20px); }

/* ─── TIPOGRAFÍA ─────────────────────────────────────────── */
.page-eyebrow { display: block; font-family: var(--font-mono); font-size: 0.69rem; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--marca); margin-bottom: 12px; }
h1 { font-size: 2rem; font-weight: 800; line-height: 1.2; color: var(--text-primary); margin-bottom: 16px; letter-spacing: -0.02em; }
h2 { font-size: 1.3rem; font-weight: 700; color: var(--text-primary); margin-top: 52px; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 2px solid var(--marca-pale); }
h3 { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-top: 32px; margin-bottom: 10px; }
.lead { font-size: 1.04rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 30px; padding-left: 14px; border-left: 3px solid var(--border); }
code:not(pre code) { font-family: var(--font-mono); font-size: 0.83em; background: var(--bg-code); color: #9b1c1c; padding: 2px 6px; border-radius: 4px; border: 1px solid var(--border); }

/* ─── DEMO BLOCK ─────────────────────────────────────────── */
/* Contenedor que muestra el componente en vivo */
.demo {
  border: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 32px 28px;
  background: var(--bg-surface);
  display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-start;
}
.demo.col { flex-direction: column; }
.demo.center { justify-content: center; align-items: center; }
.demo.dark-bg { background: #1a1a2e; }
.demo.gray-bg { background: #f0f2f5; }

/* ─── BLOQUES DE CÓDIGO ──────────────────────────────────── */
.code-block { margin: 0 0 32px; }
.code-header { display: flex; align-items: center; justify-content: space-between; background: #1e1e2e; color: #a0a0c0; padding: 8px 16px; border-radius: 0 0 0 0; font-family: var(--font-mono); font-size: 0.71rem; border: 1px solid var(--border); border-top: none; }
.demo + .code-header { border-top: none; }
.copy-btn { background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12); color: #9a9aaa; font-family: var(--font); font-size: 0.71rem; font-weight: 500; padding: 3px 10px; border-radius: 4px; cursor: pointer; display: flex; align-items: center; gap: 5px; transition: background-color 0.15s, color 0.15s; }
.copy-btn:hover { background: rgba(255,255,255,0.12); color: #d0d0d8; }
.copy-btn.copied { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); color: #c8c8d0; }
pre { background: var(--bg-code); border: 1px solid var(--border); border-top: none; border-radius: 0 0 var(--radius) var(--radius); padding: 20px 22px; overflow-x: auto; margin: 0; scrollbar-width: thin; }
pre code { font-family: var(--font-mono); font-size: 0.82rem; line-height: 1.7; color: var(--text-body); background: none; border: none; padding: 0; }
.kw { color: var(--syn-kw); font-weight: 600; }
.fn { color: var(--syn-fn); }
.str{ color: var(--syn-str); }
.cm { color: var(--syn-cm); font-style: italic; }
.num{ color: var(--syn-num); }
.at { color: var(--syn-at); }
.tg { color: var(--syn-tg); }
.vl { color: var(--syn-vl); }
.cl { color: var(--syn-cl); }

/* ─── COMPONENTES — BOTONES ──────────────────────────────── */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; font-family: var(--font); font-size: 0.875rem; font-weight: 600; line-height: 1; padding: 10px 20px; border-radius: var(--radius); border: 2px solid transparent; cursor: pointer; text-decoration: none; transition: all 0.18s; white-space: nowrap; min-height: 44px; }
.btn:disabled, .btn.disabled { opacity: 0.52; cursor: not-allowed; pointer-events: none; }
.btn-sm  { font-size: 0.78rem; padding: 7px 14px; min-height: 36px; }
.btn-lg  { font-size: 1rem;    padding: 13px 28px; min-height: 52px; border-radius: 10px; }

/* Sólidos */
.btn-marca        { background: var(--marca);     border-color: var(--marca);     color: #fff; }
.btn-marca:hover  { background: var(--marca-oscuro); border-color: var(--marca-oscuro); color: #fff; }
.btn-primary      { background: var(--primary);   border-color: var(--primary);   color: #fff; }
.btn-primary:hover{ background: #0a3880;           border-color: #0a3880;           color: #fff; }
.btn-secondary    { background: var(--secondary); border-color: var(--secondary); color: #fff; }
.btn-secondary:hover{ background: #37474f;         border-color: #37474f;           color: #fff; }
.btn-success      { background: var(--success);   border-color: var(--success);   color: #fff; }
.btn-success:hover{ background: #154a19;           border-color: #154a19;           color: #fff; }
.btn-danger       { background: var(--danger);    border-color: var(--danger);    color: #fff; }
.btn-danger:hover { background: #8f1717;           border-color: #8f1717;           color: #fff; }
.btn-warning      { background: var(--warning);   border-color: var(--warning);   color: #fff; }
.btn-warning:hover{ background: #bf4400;           border-color: #bf4400;           color: #fff; }
.btn-info         { background: var(--info);      border-color: var(--info);      color: #fff; }
.btn-info:hover   { background: #014478;           border-color: #014478;           color: #fff; }
.btn-light        { background: var(--light);     border-color: var(--border);    color: var(--text-body); }
.btn-light:hover  { background: #e0e0e0;           border-color: #c0c0c0;           color: var(--text-primary); }
.btn-dark         { background: var(--dark);      border-color: var(--dark);      color: #fff; }
.btn-dark:hover   { background: #111;              border-color: #111;              color: #fff; }
.btn-link         { background: transparent; border-color: transparent; color: var(--marca); text-decoration: underline; }
.btn-link:hover   { color: var(--marca-oscuro); }

/* Outline */
.btn-outline-marca     { background: transparent; border-color: var(--marca);     color: var(--marca); }
.btn-outline-marca:hover{ background: var(--marca-pale); }
.btn-outline-primary   { background: transparent; border-color: var(--primary);   color: var(--primary); }
.btn-outline-primary:hover{ background: #e3f0ff; }
.btn-outline-secondary { background: transparent; border-color: var(--secondary); color: var(--secondary); }
.btn-outline-secondary:hover{ background: #eceff1; }
.btn-outline-success   { background: transparent; border-color: var(--success);   color: var(--success); }
.btn-outline-success:hover{ background: #e8f5e9; }
.btn-outline-danger    { background: transparent; border-color: var(--danger);    color: var(--danger); }
.btn-outline-danger:hover{ background: #ffebee; }
.btn-outline-warning   { background: transparent; border-color: var(--warning);   color: var(--warning); }
.btn-outline-warning:hover{ background: #fff3e0; }
.btn-outline-dark      { background: transparent; border-color: var(--dark);      color: var(--dark); }
.btn-outline-dark:hover{ background: #f5f5f5; }
.btn-group { display: inline-flex; }
.btn-group .btn { border-radius: 0; border-right-width: 1px; }
.btn-group .btn:first-child { border-radius: var(--radius) 0 0 var(--radius); }
.btn-group .btn:last-child  { border-radius: 0 var(--radius) var(--radius) 0; border-right-width: 2px; }

/* ─── COMPONENTES — BADGES ───────────────────────────────── */
.badge { display: inline-flex; align-items: center; font-size: 0.72rem; font-weight: 700; padding: 3px 9px; border-radius: 999px; line-height: 1.4; letter-spacing: 0.02em; }
.badge-marca      { background: var(--marca);     color: #fff; }
.badge-marca-pale { background: var(--marca-pale); color: var(--marca); border: 1px solid var(--marca-border); }
.badge-primary    { background: var(--primary);   color: #fff; }
.badge-secondary  { background: var(--secondary); color: #fff; }
.badge-success    { background: var(--success);   color: #fff; }
.badge-danger     { background: var(--danger);    color: #fff; }
.badge-warning    { background: var(--warning);   color: #fff; }
.badge-info       { background: var(--info);      color: #fff; }
.badge-light      { background: var(--light);     color: var(--text-body); border: 1px solid var(--border); }
.badge-dark       { background: var(--dark);      color: #fff; }
/* Pill cuadrado */
.badge-square { border-radius: var(--radius); }

/* ─── COMPONENTES — ALERTAS ──────────────────────────────── */
.alert { display: flex; gap: 12px; padding: 14px 18px; border-radius: var(--radius); margin-bottom: 12px; border: 1px solid; align-items: flex-start; font-size: 0.9rem; }
.alert-icon { font-size: 1.1rem; flex-shrink: 0; margin-top: 1px; }
.alert-body { flex: 1; }
.alert-body strong { display: block; margin-bottom: 3px; }
.alert-body p { margin: 0; }
.alert-body a { font-weight: 600; }
.alert-marca    { background: var(--marca-pale); border-color: var(--marca-border); color: var(--marca-oscuro); }
.alert-primary  { background: #e3f0ff; border-color: #90bdf5; color: #0a3271; }
.alert-success  { background: #e8f5e9; border-color: #81c784; color: #1b4820; }
.alert-danger   { background: #ffebee; border-color: #ef9a9a; color: #7f1d1d; }
.alert-warning  { background: #fff3e0; border-color: #ffb74d; color: #7f3e00; }
.alert-info     { background: #e1f5fe; border-color: #81d4fa; color: #01395c; }
.alert-dark     { background: #f5f5f5; border-color: #bdbdbd; color: var(--dark); }
.alert-dismissible { position: relative; padding-right: 48px; }
.alert-close { position: absolute; top: 10px; right: 12px; background: none; border: none; font-size: 1.1rem; cursor: pointer; color: inherit; opacity: 0.6; padding: 4px; border-radius: 4px; }
.alert-close:hover { opacity: 1; }

/* ─── COMPONENTES — CARDS ────────────────────────────────── */
.card { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.card-img { width: 100%; height: 180px; object-fit: cover; display: block; }
.card-header { padding: 12px 20px; background: var(--bg-th); border-bottom: 1px solid var(--border); font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-subtle); }
.card-body { padding: 20px; }
.card-title { font-size: 1.05rem; font-weight: 700; color: var(--text-primary); margin-bottom: 8px; }
.card-text { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 16px; }
.card-footer { padding: 12px 20px; background: var(--bg-th); border-top: 1px solid var(--border); font-size: 0.78rem; color: var(--text-subtle); }
.card-marca       { background: var(--marca);      color: #fff; border-color: var(--marca-oscuro); }
.card-marca .card-header { background: rgba(0,0,0,0.15); border-color: rgba(0,0,0,0.1); color: rgba(255,255,255,0.8); }
.card-marca .card-title  { color: #fff; }
.card-marca .card-text   { color: rgba(255,255,255,0.85); }
.card-primary     { background: var(--primary);    color: #fff; border-color: #0a3880; }
.card-primary .card-header { background: rgba(0,0,0,0.15); border-color: rgba(0,0,0,0.1); color: rgba(255,255,255,0.8); }
.card-primary .card-title  { color: #fff; }
.card-primary .card-text   { color: rgba(255,255,255,0.85); }
.card-success     { background: var(--success);    color: #fff; border-color: #154a19; }
.card-success .card-header { background: rgba(0,0,0,0.15); border-color: rgba(0,0,0,0.1); color: rgba(255,255,255,0.8); }
.card-success .card-title  { color: #fff; }
.card-success .card-text   { color: rgba(255,255,255,0.85); }
.card-danger      { background: var(--danger);     color: #fff; border-color: #8f1717; }
.card-danger .card-header  { background: rgba(0,0,0,0.15); border-color: rgba(0,0,0,0.1); color: rgba(255,255,255,0.8); }
.card-danger .card-title   { color: #fff; }
.card-danger .card-text    { color: rgba(255,255,255,0.85); }
/* Cards grid */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }

/* ─── COMPONENTES — ACORDEONES ───────────────────────────── */
.accordion { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.accordion-item + .accordion-item { border-top: 1px solid var(--border); }
.accordion-btn { width: 100%; background: var(--bg-surface); border: none; padding: 16px 20px; text-align: left; font-family: var(--font); font-size: 0.95rem; font-weight: 600; color: var(--text-primary); cursor: pointer; display: flex; justify-content: space-between; align-items: center; transition: background-color 0.15s; }
.accordion-btn:hover { background: var(--marca-pale); }
.accordion-btn[aria-expanded="true"] { background: var(--marca-pale); color: var(--marca); }
.accordion-icon { font-size: 1rem; transition: transform 0.25s; flex-shrink: 0; color: var(--text-subtle); }
.accordion-btn[aria-expanded="true"] .accordion-icon { transform: rotate(180deg); color: var(--marca); }
.accordion-body { display: none; padding: 16px 20px; font-size: 0.9rem; color: var(--text-muted); border-top: 1px solid var(--border); background: var(--bg-surface); }
.accordion-body.open { display: block; }
/* Flush */
.accordion-flush { border: none; border-radius: 0; }
.accordion-flush .accordion-item { border-left: none; border-right: none; }
.accordion-flush .accordion-item:first-child { border-top: none; }
.accordion-flush .accordion-btn { padding-left: 0; padding-right: 0; }
.accordion-flush .accordion-body { padding-left: 0; padding-right: 0; }

/* ─── COMPONENTES — TABS ─────────────────────────────────── */
.tab-list { display: flex; border-bottom: 2px solid var(--border); gap: 0; }
.tab-btn { background: none; border: none; border-bottom: 2px solid transparent; margin-bottom: -2px; padding: 10px 18px; font-family: var(--font); font-size: 0.875rem; font-weight: 600; color: var(--text-muted); cursor: pointer; transition: color 0.15s, border-color 0.15s; white-space: nowrap; }
.tab-btn:hover { color: var(--marca); }
.tab-btn.active { color: var(--marca); border-bottom-color: var(--marca); }
.tab-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.tab-panel { display: none; padding: 20px 0; font-size: 0.9rem; color: var(--text-muted); }
.tab-panel.active { display: block; }
/* Pills */
.tab-list-pills { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; border: none; }
.tab-list-pills .tab-btn { border-bottom: none; border-radius: 999px; margin-bottom: 0; }
.tab-list-pills .tab-btn.active { background: var(--marca); color: #fff; }

/* ─── COMPONENTES — NAVBARS ──────────────────────────────── */
.navbar { display: flex; align-items: center; padding: 10px 20px; border-radius: var(--radius); gap: 16px; flex-wrap: wrap; }
.navbar-brand { font-weight: 800; font-size: 1rem; text-decoration: none; color: inherit; flex-shrink: 0; }
.navbar-nav { display: flex; align-items: center; gap: 4px; list-style: none; padding: 0; margin: 0; flex-wrap: wrap; }
.navbar-nav li a { padding: 6px 12px; border-radius: 6px; font-size: 0.85rem; font-weight: 500; text-decoration: none; color: inherit; transition: background-color 0.15s; }
.navbar-nav li a:hover { background: rgba(0,0,0,0.08); }
.navbar-nav li a.active { font-weight: 700; }
.navbar-light { background: #f8f9fb; border: 1px solid var(--border); color: var(--text-body); }
.navbar-marca { background: var(--marca); color: #fff; }
.navbar-marca .navbar-nav li a { color: rgba(255,255,255,0.85); }
.navbar-marca .navbar-nav li a:hover { background: rgba(255,255,255,0.15); color: #fff; }
.navbar-dark { background: var(--dark); color: #fff; }
.navbar-dark .navbar-nav li a { color: rgba(255,255,255,0.75); }
.navbar-dark .navbar-nav li a:hover { background: rgba(255,255,255,0.1); color: #fff; }
.navbar-search { margin-left: auto; display: flex; gap: 8px; }
.navbar-search input { padding: 6px 12px; border: 1px solid rgba(255,255,255,0.3); border-radius: 6px; background: rgba(255,255,255,0.15); color: inherit; font-family: var(--font); font-size: 0.82rem; outline: none; }
.navbar-search input::placeholder { color: rgba(255,255,255,0.5); }
.navbar-light .navbar-search input { border-color: var(--border); background: #fff; color: var(--text-body); }
.navbar-light .navbar-search input::placeholder { color: var(--text-subtle); }

/* ─── COMPONENTES — BREADCRUMBS ──────────────────────────── */
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 0; list-style: none; padding: 0; margin: 0; font-size: 0.85rem; }
.breadcrumb-item { display: flex; align-items: center; }
.breadcrumb-item + .breadcrumb-item::before { content: '/'; color: var(--text-subtle); margin: 0 8px; }
.breadcrumb-item a { color: var(--text-link); text-decoration: none; font-weight: 500; }
.breadcrumb-item a:hover { text-decoration: underline; }
.breadcrumb-item.active { color: var(--text-subtle); }

/* ─── COMPONENTES — TABLAS ───────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); margin: 0; box-shadow: var(--shadow-sm); }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
thead { background: var(--bg-th); }
th { padding: 11px 15px; text-align: left; font-size: 0.71rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-subtle); border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 11px 15px; color: var(--text-body); border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
.table-striped tbody tr:nth-child(even) td { background: #fafafa; }
.table-hover tbody tr:hover td { background: var(--marca-pale); }
.table-dark thead { background: var(--dark); }
.table-dark th { color: rgba(255,255,255,0.7); border-color: rgba(255,255,255,0.1); }
.table-dark td { color: #d0d0d0; border-color: rgba(255,255,255,0.08); }
.table-dark tbody tr:hover td { background: rgba(255,255,255,0.05); }
.table-sm th, .table-sm td { padding: 7px 12px; }
.table-bordered th, .table-bordered td { border: 1px solid var(--border); }
/* Colores de fila */
.row-primary td { background: #dbeafe; }
.row-success td { background: #dcfce7; }
.row-danger  td { background: #fee2e2; }
.row-warning td { background: #fff3e0; }
.row-info    td { background: #e0f2fe; }

/* ─── COMPONENTES — LISTAS ───────────────────────────────── */
.list-group { border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.list-group-item { padding: 12px 16px; border-bottom: 1px solid var(--border); font-size: 0.9rem; color: var(--text-body); background: var(--bg-surface); display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.list-group-item:last-child { border-bottom: none; }
.list-group-item.active { background: var(--marca); color: #fff; border-color: var(--marca); }
.list-group-item.disabled { opacity: 0.45; }
.list-group-item-marca    { background: var(--marca-pale); color: var(--marca-oscuro); }
.list-group-item-primary  { background: #dbeafe; color: #1e3a8a; }
.list-group-item-success  { background: #dcfce7; color: #14532d; }
.list-group-item-danger   { background: #fee2e2; color: #7f1d1d; }
.list-group-item-warning  { background: #fff3e0; color: #7c2d12; }
.list-group-item-info     { background: #e0f2fe; color: #0c4a6e; }
.list-group-flush .list-group-item { border-radius: 0; border-left: none; border-right: none; }
.list-group-flush { border-left: none; border-right: none; border-radius: 0; }
/* Links en list-group */
.list-group-item a { color: inherit; text-decoration: none; display: block; }

/* ─── COMPONENTES — PROGRESS ─────────────────────────────── */
.progress { background: #e9ecef; border-radius: 999px; height: 10px; overflow: hidden; margin-bottom: 10px; }
.progress-bar { height: 100%; border-radius: 999px; font-size: 0.7rem; font-weight: 700; color: #fff; display: flex; align-items: center; justify-content: center; transition: width 0.6s ease; }
.progress-sm { height: 6px; }
.progress-lg { height: 18px; }
.progress-marca     { background: var(--marca); }
.progress-primary   { background: var(--primary); }
.progress-success   { background: var(--success); }
.progress-danger    { background: var(--danger); }
.progress-warning   { background: var(--warning); }
.progress-info      { background: var(--info); }
.progress-striped   { background-image: linear-gradient(45deg, rgba(255,255,255,.15) 25%, transparent 25%, transparent 50%, rgba(255,255,255,.15) 50%, rgba(255,255,255,.15) 75%, transparent 75%); background-size: 16px 16px; }

/* ─── COMPONENTES — FORMULARIOS ──────────────────────────── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.875rem; font-weight: 600; color: var(--text-primary); margin-bottom: 6px; }
.form-label .required { color: var(--marca); margin-left: 2px; }
.form-control { width: 100%; padding: 9px 13px; border: 1.5px solid var(--border-strong); border-radius: var(--radius); font-family: var(--font); font-size: 0.9rem; color: var(--text-body); background: var(--bg); transition: border-color 0.15s, box-shadow 0.15s; outline: none; }
.form-control:focus { border-color: var(--marca); box-shadow: 0 0 0 3px rgba(149,4,45,0.12); }
.form-control:disabled { background: var(--bg-code); color: var(--text-subtle); cursor: not-allowed; }
.form-control.is-valid   { border-color: var(--success); }
.form-control.is-valid:focus { box-shadow: 0 0 0 3px rgba(27,94,32,0.12); }
.form-control.is-invalid { border-color: var(--danger); }
.form-control.is-invalid:focus { box-shadow: 0 0 0 3px rgba(183,28,28,0.12); }
.form-text { font-size: 0.79rem; color: var(--text-subtle); margin-top: 5px; }
.form-text.valid   { color: var(--success); }
.form-text.invalid { color: var(--danger); }
select.form-control { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 12px center; padding-right: 36px; }
.form-check { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.form-check input[type="checkbox"],
.form-check input[type="radio"] { width: 18px; height: 18px; accent-color: var(--marca); cursor: pointer; flex-shrink: 0; }
.form-check-label { font-size: 0.9rem; color: var(--text-body); cursor: pointer; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
textarea.form-control { resize: vertical; min-height: 100px; }

/* ─── COMPONENTES — MODALES ──────────────────────────────── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 500; display: none; align-items: center; justify-content: center; padding: 20px; }
.modal-overlay.open { display: flex; }
.modal { background: var(--bg); border-radius: var(--radius-lg); box-shadow: 0 20px 60px rgba(0,0,0,0.2); max-width: 520px; width: 100%; overflow: hidden; animation: modalIn 0.2s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 18px 22px; border-bottom: 1px solid var(--border); }
.modal-title { font-size: 1rem; font-weight: 700; color: var(--text-primary); }
.modal-close { background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--text-subtle); padding: 4px; border-radius: 4px; line-height: 1; }
.modal-close:hover { color: var(--text-primary); background: var(--bg-code); }
.modal-body { padding: 22px; font-size: 0.9rem; color: var(--text-muted); }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; padding: 16px 22px; border-top: 1px solid var(--border); background: var(--bg-th); }

/* ─── COMPONENTES — TOOLTIPS ─────────────────────────────── */
.tooltip-wrap { position: relative; display: inline-block; }
.tooltip-box { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translateX(-50%); background: var(--dark); color: #fff; font-size: 0.75rem; font-weight: 500; padding: 5px 10px; border-radius: 6px; white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity 0.18s; z-index: 100; }
.tooltip-box::after { content: ''; position: absolute; top: 100%; left: 50%; transform: translateX(-50%); border: 5px solid transparent; border-top-color: var(--dark); }
.tooltip-wrap:hover .tooltip-box,
.tooltip-wrap:focus-within .tooltip-box { opacity: 1; }

/* ─── COMPONENTES — PAGINACIÓN ───────────────────────────── */
.pagination { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.page-btn { display: inline-flex; align-items: center; justify-content: center; min-width: 36px; height: 36px; padding: 0 10px; border: 1.5px solid var(--border); border-radius: var(--radius); font-size: 0.85rem; font-weight: 500; color: var(--text-muted); background: var(--bg); text-decoration: none; cursor: pointer; transition: all 0.15s; }
.page-btn:hover { border-color: var(--marca); color: var(--marca); background: var(--marca-pale); }
.page-btn.active { background: var(--marca); border-color: var(--marca); color: #fff; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* ─── COMPONENTES — SPINNER ──────────────────────────────── */
.spinner { display: inline-block; width: 24px; height: 24px; border: 3px solid var(--border); border-top-color: var(--marca); border-radius: 50%; animation: spin 0.7s linear infinite; }
.spinner-sm { width: 16px; height: 16px; border-width: 2px; }
.spinner-lg { width: 36px; height: 36px; border-width: 4px; }
.spinner-primary { border-top-color: var(--primary); }
.spinner-success { border-top-color: var(--success); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ─── COMPONENTES — COLORES (PALETA) ────────────────────── */
.color-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
.color-swatch { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.color-swatch-block { height: 72px; }
.color-swatch-info { padding: 8px 10px; background: var(--bg-surface); }
.color-swatch-name { font-size: 0.75rem; font-weight: 700; color: var(--text-primary); }
.color-swatch-hex  { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-subtle); }

/* ─── COMPONENTES — TIPOGRAFÍA DEMO ─────────────────────── */
.type-row { display: flex; align-items: baseline; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.type-row:last-child { border-bottom: none; }
.type-label { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-subtle); min-width: 90px; flex-shrink: 0; }
.type-meta  { font-size: 0.72rem; color: var(--text-subtle); min-width: 110px; flex-shrink: 0; text-align: right; margin-left: auto; }

/* ─── NAV ENTRE PÁGINAS ──────────────────────────────────── */
.page-nav { display: flex; justify-content: space-between; gap: 14px; margin-top: 68px; padding-top: 26px; border-top: 1px solid var(--border); }
.page-nav-btn { background: var(--bg-surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 13px 18px; text-decoration: none; color: inherit; display: block; flex: 1; max-width: 300px; transition: border-color 0.15s, box-shadow 0.15s; }
.page-nav-btn:hover { border-color: var(--marca); box-shadow: var(--shadow-sm); }
.page-nav-btn.next { text-align: right; margin-left: auto; }
.page-nav-label { font-family: var(--font-mono); font-size: 0.69rem; color: var(--text-subtle); letter-spacing: 0.06em; margin-bottom: 3px; }
.page-nav-title { font-size: 0.86rem; font-weight: 600; color: var(--marca); }

/* ─── FOOTER ─────────────────────────────────────────────── */
.doc-footer { margin-top: 56px; padding-top: 22px; border-top: 1px solid var(--border); font-size: 0.78rem; color: var(--text-subtle); text-align: center; line-height: 1.8; }

/* ─── UTILIDADES ─────────────────────────────────────────── */
.flex-gap { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.mt-0 { margin-top: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }

/* ─── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 900px) {
  :root { --sidebar-w: 280px; }
  .nav-hamburger { display: flex; }
  .nav-logo-text, .nav-sep { display: none; }
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-md); }
  .main-wrapper { margin-left: 0; }
  .page-content { padding: 30px 18px 60px; }
  h1 { font-size: 1.6rem; }
  .form-row { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .page-nav { flex-direction: column; }
  .page-nav-btn { max-width: 100%; }
}

/* ─── MOVIMIENTO REDUCIDO ────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ── Ícono SVG en alertas ─────────────────────────────── */
.alert-icon {
  display: inline-flex;
  align-items: flex-start;
  flex-shrink: 0;
  margin-top: 1px;
}
.alert-icon svg {
  width: 20px; height: 20px;
  stroke: currentColor; fill: none;
  flex-shrink: 0;
}
/* Botón copiar — SVG heredado */
.copy-btn svg {
  width: 14px; height: 14px;
  stroke: currentColor; fill: none;
  vertical-align: middle;
}
/* Accordion icon SVG */
.accordion-icon svg {
  width: 16px; height: 16px;
  stroke: currentColor; fill: none;
  transition: transform 0.25s;
}
.accordion-btn[aria-expanded="true"] .accordion-icon svg {
  transform: rotate(180deg);
}
/* Modal close SVG */
.modal-close svg {
  width: 18px; height: 18px;
  stroke: currentColor; fill: none;
  pointer-events: none;
}

/* ─── CARRUSEL ───────────────────────────────────────────── */
.carousel { position: relative; overflow: hidden; border-radius: var(--radius-lg); background: #000; }
.carousel-track { display: flex; transition: transform 0.45s cubic-bezier(0.4,0,0.2,1); will-change: transform; }
.carousel-slide { min-width: 100%; position: relative; flex-shrink: 0; }
.carousel-slide img { width: 100%; height: 380px; object-fit: cover; display: block; opacity: 0.92; }
.carousel-slide-sm img { height: 240px; }

/* Caption */
.carousel-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  padding: 32px 28px 24px;
  background: linear-gradient(to top, rgba(0,0,0,0.72) 0%, transparent 100%);
  color: #fff;
}
.carousel-caption h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; color: #fff; }
.carousel-caption p  { font-size: 0.875rem; margin: 0; color: rgba(255,255,255,0.85); max-width: 60ch; }

/* Controles flechas */
.carousel-btn {
  position: absolute; top: 50%; transform: translateY(-50%);
  background: rgba(255,255,255,0.15); backdrop-filter: blur(4px);
  border: 1.5px solid rgba(255,255,255,0.25);
  color: #fff; width: 44px; height: 44px;
  border-radius: 50%; cursor: pointer; z-index: 10;
  display: flex; align-items: center; justify-content: center;
  transition: background-color 0.18s;
}
.carousel-btn:hover { background: rgba(255,255,255,0.28); }
.carousel-btn svg  { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 2.5; stroke-linecap: round; stroke-linejoin: round; }
.carousel-prev { left: 14px; }
.carousel-next { right: 14px; }

/* Indicadores */
.carousel-indicators {
  position: absolute; bottom: 14px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 7px; z-index: 10;
}
.carousel-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,0.45); border: none; cursor: pointer;
  padding: 0; transition: background-color 0.2s, transform 0.2s;
}
.carousel-dot.active { background: #fff; transform: scale(1.25); }

/* Pausa */
.carousel-pause {
  position: absolute; top: 12px; right: 12px; z-index: 10;
  background: rgba(0,0,0,0.4); backdrop-filter: blur(4px);
  border: 1.5px solid rgba(255,255,255,0.2);
  color: #fff; border-radius: 6px; padding: 5px 10px;
  font-size: 0.75rem; font-weight: 600; cursor: pointer;
  display: flex; align-items: center; gap: 5px;
  font-family: var(--font);
  transition: background-color 0.15s;
}
.carousel-pause:hover { background: rgba(0,0,0,0.65); }
.carousel-pause svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; }

/* Carrusel de cards */
.carousel-cards-wrap { overflow: hidden; }
.carousel-cards-track { display: flex; gap: 16px; transition: transform 0.45s cubic-bezier(0.4,0,0.2,1); }
.carousel-cards-track .card { min-width: calc(33.333% - 11px); flex-shrink: 0; }
.carousel-cards-controls { display: flex; justify-content: center; align-items: center; gap: 12px; margin-top: 16px; }

/* ─── DROPDOWN ───────────────────────────────────────────── */
.dropdown { position: relative; display: inline-block; }
.dropdown-menu {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 400;
  background: var(--bg-surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow-md);
  min-width: 200px; padding: 6px 0;
  opacity: 0; pointer-events: none; transform: translateY(-6px);
  transition: opacity 0.15s, transform 0.15s;
}
.dropdown-menu.open { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* Dropup */
.dropup .dropdown-menu { top: auto; bottom: calc(100% + 6px); }
/* Dropend */
.dropend .dropdown-menu { top: 0; left: calc(100% + 6px); }
/* Dropstart */
.dropstart .dropdown-menu { top: 0; left: auto; right: calc(100% + 6px); }

.dropdown-item {
  display: flex; align-items: center; gap: 9px;
  padding: 8px 16px; font-size: 0.875rem; font-weight: 500;
  color: var(--text-body); text-decoration: none; background: none; border: none;
  width: 100%; text-align: left; cursor: pointer; font-family: var(--font);
  transition: background-color 0.12s, color 0.12s;
  white-space: nowrap;
}
.dropdown-item:hover  { background: var(--marca-pale); color: var(--marca); }
.dropdown-item.active { background: var(--marca); color: #fff; }
.dropdown-item.danger { color: var(--danger); }
.dropdown-item.danger:hover { background: #ffebee; }
.dropdown-item:disabled,
.dropdown-item.disabled { opacity: 0.45; cursor: not-allowed; pointer-events: none; }
.dropdown-item svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

.dropdown-divider { height: 1px; background: var(--border); margin: 6px 0; }
.dropdown-header { padding: 6px 16px 4px; font-size: 0.67rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-subtle); }

/* Split button */
.btn-split { display: inline-flex; }
.btn-split .btn:first-child { border-radius: var(--radius) 0 0 var(--radius); border-right: 1px solid rgba(255,255,255,0.25); }
.btn-split .btn-toggle { border-radius: 0 var(--radius) var(--radius) 0; padding: 0 10px; min-width: 36px; }
.btn-split .btn-toggle svg { width: 14px; height: 14px; stroke: currentColor; fill: none; stroke-width: 2.5; }

@media (prefers-reduced-motion: reduce) {
  .carousel-track, .carousel-cards-track { transition: none; }
  .dropdown-menu { transition: none; }
}