/* OposicionesBot — sistema visual 2026
 * Capa compartida y no destructiva para portada, herramientas y contenido.
 */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600&display=swap');

:root {
  --ob-bg: #060606;
  --ob-surface: rgba(15, 15, 19, .88);
  --ob-surface-strong: #111116;
  --ob-surface-soft: rgba(255, 255, 255, .045);
  --ob-border: rgba(255, 255, 255, .11);
  --ob-border-strong: rgba(255, 255, 255, .2);
  --ob-text: #f7f7f8;
  --ob-muted: #a6a6b0;
  --ob-subtle: #74747f;
  --ob-indigo: #2563eb;
  --ob-indigo-strong: #2563eb;
  --ob-emerald: #33d6a6;
  --ob-yellow: #f3c75f;
  --ob-danger: #ff6f91;
  --ob-radius-sm: 12px;
  --ob-radius: 20px;
  --ob-radius-lg: 28px;
  --ob-shadow: 0 24px 80px rgba(0, 0, 0, .38);
  --ob-container: 1180px;
  --ob-font-ui: 'Inter', ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --ob-font-display: 'Instrument Serif', Georgia, serif;
  --ob-font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

html.ob-v2 { color-scheme: dark; background: var(--ob-bg); }

html.ob-v2::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(circle at 18% -8%, rgba(37,99,235, .16), transparent 34rem),
    radial-gradient(circle at 88% 18%, rgba(51, 214, 166, .09), transparent 31rem),
    radial-gradient(circle at 55% 110%, rgba(37,99,235, .11), transparent 35rem),
    var(--ob-bg);
}

html.ob-v2::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: .42;
  background-image:
    linear-gradient(rgba(255, 255, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .025) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 75%);
}

body.ob-v2-body {
  min-height: 100vh;
  margin: 0;
  color: var(--ob-text);
  background: transparent !important;
  font-family: var(--ob-font-ui);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.ob-v2-body *, body.ob-v2-body *::before, body.ob-v2-body *::after { box-sizing: border-box; }
body.ob-v2-body img, body.ob-v2-body video, body.ob-v2-body canvas { max-width: 100%; }
body.ob-v2-body a { text-underline-offset: .2em; }
body.ob-v2-body ::selection { color: white; background: rgba(37,99,235, .55); }

body.ob-v2-body h1,
body.ob-v2-body h2,
body.ob-v2-body h3,
body.ob-v2-body .display-title {
  color: var(--ob-text);
  font-family: var(--ob-font-display);
  font-weight: 400;
  letter-spacing: -.025em;
  text-wrap: balance;
}

body.ob-v2-body h1 { letter-spacing: -.045em; }
body.ob-v2-body p { text-wrap: pretty; }

.ob-v2-legacy-shell { display: none !important; }
.ob-v2-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.ob-v2-skip {
  position: fixed;
  left: 16px;
  top: -80px;
  z-index: 10050;
  padding: 11px 15px;
  color: white;
  background: var(--ob-indigo-strong);
  border-radius: 10px;
  font: 700 14px/1 var(--ob-font-ui);
  transition: top .2s ease;
}
.ob-v2-skip:focus { top: 12px; }

/* Cabecera global */
#ob-v2-nav {
  position: sticky;
  top: 0;
  z-index: 9990;
  width: 100%;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  background: rgba(6, 6, 6, .78);
  backdrop-filter: blur(22px) saturate(145%);
  -webkit-backdrop-filter: blur(22px) saturate(145%);
}

.ob-v2-nav-inner {
  width: min(calc(100% - 32px), var(--ob-container));
  min-height: 66px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.ob-v2-brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 10px;
  color: white !important;
  text-decoration: none !important;
  font: 800 16px/1 var(--ob-font-ui);
  letter-spacing: -.035em;
}

.ob-v2-brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .19);
  border-radius: 11px;
  background: linear-gradient(145deg, rgba(37,99,235, .9), rgba(74, 61, 198, .85));
  box-shadow: inset 0 1px rgba(255,255,255,.24), 0 10px 30px rgba(91, 75, 225, .25);
  font-family: var(--ob-font-display);
  font-size: 19px;
}

.ob-v2-brand span:last-child { white-space: nowrap; }
.ob-v2-primary-links { display: flex; align-items: center; gap: 4px; margin-left: auto; }

.ob-v2-nav-link,
.ob-v2-resources summary {
  min-height: 38px;
  padding: 0 12px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #aaaab4 !important;
  border-radius: 10px;
  text-decoration: none !important;
  font: 600 13px/1 var(--ob-font-ui);
  cursor: pointer;
  transition: color .18s ease, background .18s ease;
}

.ob-v2-nav-link:hover,
.ob-v2-nav-link.is-active,
.ob-v2-resources summary:hover,
.ob-v2-resources[open] summary { color: white !important; background: rgba(255,255,255,.065); }
.ob-v2-nav-link.is-active::after { content: ''; width: 5px; height: 5px; border-radius: 50%; background: var(--ob-emerald); }

.ob-v2-resources { position: relative; }
.ob-v2-resources summary { list-style: none; }
.ob-v2-resources summary::-webkit-details-marker { display: none; }
.ob-v2-chevron { transition: transform .18s ease; }
.ob-v2-chevron svg { width: 15px; height: 15px; }
.ob-v2-resources[open] .ob-v2-chevron { transform: rotate(180deg); }

.ob-v2-dropdown {
  position: absolute;
  top: calc(100% + 12px);
  right: 0;
  width: 650px;
  padding: 10px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 5px;
  border: 1px solid var(--ob-border);
  border-radius: 18px;
  background: rgba(13, 13, 17, .98);
  box-shadow: var(--ob-shadow);
}

.ob-v2-menu-item {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
  padding: 10px;
  color: white !important;
  border: 1px solid transparent;
  border-radius: 13px;
  text-decoration: none !important;
  transition: background .18s ease, border-color .18s ease, transform .18s ease;
}
.ob-v2-menu-item:hover { background: rgba(255,255,255,.05); border-color: rgba(255,255,255,.07); transform: translateY(-1px); }
.ob-v2-menu-icon { width: 38px; height: 38px; display: grid; place-items: center; color: #93c5fd; border-radius: 11px; background: rgba(37,99,235,.12); }
.ob-v2-menu-icon svg { width: 19px; height: 19px; }
.ob-v2-menu-copy strong { display: block; font: 700 13px/1.25 var(--ob-font-ui); }
.ob-v2-menu-copy small { display: block; margin-top: 3px; color: var(--ob-subtle); font: 500 11px/1.3 var(--ob-font-ui); }

.ob-v2-nav-actions { display: flex; align-items: center; gap: 8px; }
.ob-v2-nav-actions [hidden] { display: none !important; }
.ob-v2-action {
  min-height: 38px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: white !important;
  border: 1px solid var(--ob-border);
  border-radius: 11px;
  background: rgba(255,255,255,.04);
  text-decoration: none !important;
  font: 700 12px/1 var(--ob-font-ui);
  white-space: nowrap;
  transition: transform .18s ease, border-color .18s ease, background .18s ease;
}
.ob-v2-action:hover { transform: translateY(-1px); border-color: var(--ob-border-strong); background: rgba(255,255,255,.08); }
.ob-v2-action-primary { border-color: rgba(37,99,235,.55); background: var(--ob-indigo-strong); box-shadow: 0 8px 25px rgba(37,99,235,.23); }
.ob-v2-action-primary:hover { background: #3b82f6; }
.ob-v2-action svg { width: 15px; height: 15px; }
.ob-v2-mobile-trigger { display: none; }

/* Controles y superficies compartidas. Se aplican solo a patrones visuales comunes. */
body.ob-v2-body :where(.card, .feature-card, .tool-card, .pricing-card, .faq-item, .step-card, .stat-card, .testimonial-card, .result-card, .glass-card) {
  border-color: var(--ob-border) !important;
  background-color: var(--ob-surface) !important;
  box-shadow: 0 1px 0 rgba(255,255,255,.025);
}

body.ob-v2-body :where(input:not([type='checkbox']):not([type='radio']), textarea, select) {
  color: var(--ob-text);
  border-color: var(--ob-border);
  background-color: rgba(255,255,255,.045);
  border-radius: 12px;
  outline: none;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
body.ob-v2-body :where(input:not([type='checkbox']):not([type='radio']), textarea, select):focus {
  border-color: rgba(37,99,235,.75);
  background-color: rgba(255,255,255,.06);
  box-shadow: 0 0 0 4px rgba(37,99,235,.13);
}

body.ob-v2-body :where(button, [role='button'], .btn) { font-family: var(--ob-font-ui); }
body.ob-v2-body :where(button, [role='button'], a) { -webkit-tap-highlight-color: transparent; }

/* Pie global */
#ob-v2-footer {
  position: relative;
  z-index: 2;
  margin-top: clamp(64px, 9vw, 120px);
  border-top: 1px solid rgba(255,255,255,.085);
  background: rgba(4,4,5,.68);
}
.ob-v2-footer-inner { width: min(calc(100% - 40px), var(--ob-container)); margin: 0 auto; padding: 62px 0 24px; }
.ob-v2-footer-grid { display: grid; grid-template-columns: 1.45fr repeat(3, 1fr); gap: 54px; }
.ob-v2-footer-brand p { max-width: 300px; margin: 18px 0 0; color: var(--ob-muted); font: 400 13px/1.7 var(--ob-font-ui); }
.ob-v2-footer-title { margin: 4px 0 17px; color: white; font: 700 11px/1 var(--ob-font-mono); letter-spacing: .09em; text-transform: uppercase; }
.ob-v2-footer-links { display: grid; gap: 10px; }
.ob-v2-footer-links a { color: #8c8c97 !important; text-decoration: none !important; font: 500 13px/1.4 var(--ob-font-ui); transition: color .18s ease; }
.ob-v2-footer-links a:hover { color: white !important; }
.ob-v2-footer-bottom { margin-top: 48px; padding-top: 20px; display: flex; justify-content: space-between; gap: 20px; color: #666671; border-top: 1px solid rgba(255,255,255,.07); font: 500 11px/1.5 var(--ob-font-ui); }
.ob-v2-footer-bottom a { color: #858590 !important; text-decoration: none !important; }

/* Navegación móvil */
#ob-v2-mobile-nav { display: none; }

@media (max-width: 1020px) {
  .ob-v2-primary-links > .ob-v2-nav-link { display: none; }
  .ob-v2-dropdown { right: -100px; }
}

@media (max-width: 760px) {
  body.ob-v2-body { padding-bottom: 72px; }
  .ob-v2-nav-inner { min-height: 58px; width: min(calc(100% - 22px), var(--ob-container)); gap: 10px; }
  .ob-v2-brand-mark { width: 32px; height: 32px; }
  .ob-v2-brand span:last-child { font-size: 14px; }
  .ob-v2-primary-links, .ob-v2-nav-actions .ob-v2-action:not(.ob-v2-action-primary) { display: none; }
  .ob-v2-nav-actions { margin-left: auto; }
  .ob-v2-action-primary { min-height: 36px; padding: 0 11px; font-size: 11px; }
  .ob-v2-action-primary svg { display: none; }

  #ob-v2-mobile-nav {
    position: fixed;
    left: 10px;
    right: 10px;
    bottom: max(9px, env(safe-area-inset-bottom));
    z-index: 9994;
    min-height: 58px;
    padding: 6px 7px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    border: 1px solid rgba(255,255,255,.13);
    border-radius: 18px;
    background: rgba(12,12,15,.92);
    box-shadow: 0 16px 55px rgba(0,0,0,.55);
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
  }
  .ob-v2-mobile-link { min-width: 0; display: grid; place-items: center; align-content: center; gap: 3px; color: #777783 !important; border-radius: 12px; text-decoration: none !important; font: 600 9px/1 var(--ob-font-ui); }
  .ob-v2-mobile-link svg { width: 19px; height: 19px; }
  .ob-v2-mobile-link.is-active { color: white !important; background: rgba(37,99,235,.16); }
  .ob-v2-mobile-link.is-active svg { color: #a69cff; }

  .ob-v2-footer-inner { padding: 44px 0 18px; }
  .ob-v2-footer-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 36px 24px; }
  .ob-v2-footer-brand { grid-column: 1 / -1; }
  .ob-v2-footer-bottom { margin-top: 36px; flex-direction: column; gap: 6px; }
}

@media (max-width: 420px) {
  .ob-v2-brand span:last-child { display: none; }
  .ob-v2-footer-grid { grid-template-columns: 1fr; }
  .ob-v2-footer-brand { grid-column: auto; }
}

@media (prefers-reduced-motion: reduce) {
  html.ob-v2 { scroll-behavior: auto !important; }
  body.ob-v2-body *, body.ob-v2-body *::before, body.ob-v2-body *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media print {
  html.ob-v2, body.ob-v2-body { color: #111 !important; background: white !important; }
  html.ob-v2::before, html.ob-v2::after, #ob-v2-nav, #ob-v2-footer, #ob-v2-mobile-nav, .ob-v2-skip { display: none !important; }
  body.ob-v2-body { padding: 0 !important; }
}