/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --ink: #0f1b2d;
  --ink-soft: #4a5872;
  --border: #dde3ee;

  --accent: #1d3557;        /* azul marino: confianza, marca */
  --accent-soft: #e5ebf5;

  --danger: #dc2626;
  --danger-soft: #fde8e8;
  --warning: #d97706;
  --warning-soft: #fef3e2;
  --safe: #15803d;
  --safe-soft: #e3f6ea;

  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(15, 27, 45, .06), 0 8px 24px -12px rgba(15, 27, 45, .18);

  --sans: "Inter", system-ui, sans-serif;
  --display: "Sora", var(--sans);

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b1420;
    --surface: #121d2e;
    --ink: #eef2f8;
    --ink-soft: #a6b3c7;
    --border: #233049;
    --accent: #6f9bd6;
    --accent-soft: #1b2a42;
    --danger-soft: #3a1818;
    --warning-soft: #3a2a0f;
    --safe-soft: #0f2e1d;
  }
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { font-family: var(--display); text-wrap: balance; line-height: 1.15; letter-spacing: -0.01em; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: #fff;
  z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }
.container { width: min(100% - 2.5rem, 880px); margin-inline: auto; }
.container--wide { width: min(100% - 2.5rem, 1080px); margin-inline: auto; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.eyebrow { font-size: .8rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--accent); }

[data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .5s var(--ease-out), transform .5s var(--ease-out); }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* =============================================================
   4. Typography
   ============================================================= */
h1 { font-size: clamp(1.9rem, 1.4rem + 2vw, 2.7rem); }
h2 { font-size: clamp(1.5rem, 1.2rem + 1.2vw, 2rem); margin-bottom: .75rem; }
h3 { font-size: 1.15rem; margin-bottom: .4rem; }
.lede { color: var(--ink-soft); font-size: 1.05rem; max-width: 56ch; }

/* =============================================================
   5. Components
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.5rem; border-radius: 999px; font-weight: 700; font-size: .98rem;
  transition: transform .2s var(--ease-out), box-shadow .2s var(--ease-out), background .2s var(--ease-out);
}
.btn-primary { background: var(--accent); color: #fff; box-shadow: var(--shadow); }
.btn-primary:hover { transform: translateY(-1px); }
.btn-primary:disabled { opacity: .6; cursor: not-allowed; transform: none; }
.btn-reset {
  margin-top: 1.1rem; font-weight: 600; color: var(--accent);
  text-decoration: underline; text-underline-offset: 3px;
}

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
}

/* header / nav */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .container--wide { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: flex; align-items: center; gap: .55rem; font-family: var(--display); font-weight: 700; font-size: 1.15rem; }
.brand-mark { width: 30px; height: 30px; }
.nav-links { display: flex; align-items: center; gap: 1.5rem; font-weight: 600; font-size: .95rem; }
.nav-links a:hover { color: var(--accent); }
.nav-toggle { display: none; }

@media (max-width: 719px) {
  .nav-links {
    position: fixed; inset: 64px 0 auto 0; flex-direction: column; align-items: flex-start;
    gap: 0; background: var(--surface); border-bottom: 1px solid var(--border);
    padding: .5rem 1.25rem 1rem; transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity .2s var(--ease-out), transform .2s var(--ease-out);
  }
  .nav-links a { padding: .6rem 0; width: 100%; }
  .nav-links.is-open { opacity: 1; transform: none; pointer-events: auto; }
  .nav-toggle { display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; }
}

/* =============================================================
   6. Sections
   ============================================================= */
.hero { padding: 2.75rem 0 1.5rem; }
.hero .eyebrow { margin-bottom: .6rem; }
.hero h1 { margin-bottom: .6rem; }

/* --- tool card --- */
.tool-card {
  padding: 1.75rem;
  margin-top: 1.5rem;
}
.tool-card .field { margin-bottom: 1rem; }
.tool-card label { display: block; font-weight: 700; margin-bottom: .4rem; font-size: .95rem; }
.tool-card .hint { font-weight: 400; color: var(--ink-soft); font-size: .85rem; }
.tool-card input[type="text"],
.tool-card textarea {
  width: 100%; border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: .8rem .95rem; font: inherit; background: var(--bg); color: var(--ink);
  resize: vertical;
}
.tool-card textarea { min-height: 150px; }
.tool-card input[type="text"]:focus, .tool-card textarea:focus { border-color: var(--accent); }
.tool-actions { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.privacy-badge {
  display: flex; align-items: flex-start; gap: .6rem;
  margin-top: 1.25rem; padding: .85rem 1rem; border-radius: var(--radius-sm);
  background: var(--accent-soft); font-size: .88rem; color: var(--ink-soft);
}
.privacy-badge strong { color: var(--ink); }

[data-result] { outline: none; }
.tool-card[data-state="idle"] [data-result] { display: none; }
.tool-card[data-state="done"] [data-result] { display: block; margin-top: 1.5rem; }

.result-badge {
  display: flex; align-items: center; gap: 1rem; padding: 1rem 1.2rem;
  border-radius: var(--radius-sm); margin-bottom: 1.1rem;
}
.result-badge--alto { background: var(--danger-soft); }
.result-badge--medio { background: var(--warning-soft); }
.result-badge--bajo { background: var(--safe-soft); }
.result-score { font-family: var(--display); font-size: 1.6rem; font-weight: 700; }
.result-badge--alto .result-score { color: var(--danger); }
.result-badge--medio .result-score { color: var(--warning); }
.result-badge--bajo .result-score { color: var(--safe); }
.result-label { font-weight: 700; }

.flag-list { list-style: none; display: grid; gap: .65rem; }
.flag { display: flex; gap: .6rem; align-items: flex-start; font-size: .94rem; }
.flag-icon { flex: none; line-height: 1.5; }
.result-notes { margin-top: .9rem; padding-left: 1.2rem; color: var(--ink-soft); font-size: .9rem; }
.result-disclaimer {
  margin-top: 1.2rem; padding-top: 1rem; border-top: 1px dashed var(--border);
  font-size: .85rem; color: var(--ink-soft);
}

/* --- ad slots --- */
.ad-slot {
  display: flex; align-items: center; justify-content: center;
  min-height: 90px; border: 1px dashed var(--border); border-radius: var(--radius-sm);
  color: var(--ink-soft); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase;
  margin: 2rem auto;
}

/* --- cómo funciona --- */
.steps { display: grid; gap: 1.25rem; margin: 1.5rem 0; }
@media (min-width: 720px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step { padding: 1.25rem; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: #fff;
  font-weight: 700; font-size: .9rem; margin-bottom: .6rem;
}

/* --- seo content --- */
.content-block { padding: 2.5rem 0; }
.content-block p + p { margin-top: .9rem; }
.content-block ul { padding-left: 1.3rem; margin-top: .6rem; }
.content-block li + li { margin-top: .4rem; }

/* --- faq --- */
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}
.faq-item summary {
  cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.3rem; color: var(--accent); flex: none; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin-top: .6rem; color: var(--ink-soft); }

/* --- guide page --- */
.guide-article h2 { margin-top: 2rem; }
.guide-article h3 { margin-top: 1.3rem; }
.guide-article p { margin-top: .75rem; }
.guide-article ul, .guide-article ol { margin-top: .75rem; padding-left: 1.4rem; }
.guide-article li + li { margin-top: .4rem; }
.callout {
  margin: 1.5rem 0; padding: 1.1rem 1.25rem; border-radius: var(--radius-sm);
  background: var(--accent-soft); border-left: 4px solid var(--accent);
}
.callout--danger { background: var(--danger-soft); border-color: var(--danger); }

/* footer */
.site-footer { border-top: 1px solid var(--border); padding: 2.5rem 0; margin-top: 2rem; }
.footer-grid { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1.5rem; align-items: center; }
.footer-links { display: flex; gap: 1.25rem; font-size: .9rem; color: var(--ink-soft); flex-wrap: wrap; }
.footer-links a:hover { color: var(--accent); }
.footer-note { font-size: .82rem; color: var(--ink-soft); margin-top: 1rem; }

/* legal pages */
.legal-page .content-block { padding-top: 1.5rem; }
.legal-page h2 { margin-top: 1.75rem; }
.legal-page p { margin-top: .6rem; }

/* =============================================================
   7. Effects
   ============================================================= */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (min-width: 720px) {
  .hero { padding: 3.5rem 0 2rem; }
}

/* =============================================================
   9. Reduced motion
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { transition: none; }
}

/* =============================================================
   10. View transitions
   ============================================================= */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) {
  animation-duration: .5s; animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
}