/* ================================================================
   CONSTITUCIÓN ESPAÑOLA — Guía Pedagógica Interactiva
   Diseño: institucional / editorial
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,900;1,400&family=Source+Sans+3:wght@300;400;600;700&display=swap');

/* ── Tokens ─────────────────────────────────────────────────── */
:root {
  --cream:        #faf8f4;
  --cream-dark:   #ede9e0;
  --cream-mid:    #f3f0e8;
  --navy:         #1a2744;
  --navy-medium:  #243560;
  --navy-light:   #334d8a;
  --text-primary: #1a1a2e;
  --text-mid:     #3a4060;
  --text-secondary:#5a607a;
  --text-light:   #9098b8;
  --white:        #ffffff;
  --accent:       var(--navy); /* overridden per page */

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Source Sans 3', 'Segoe UI', system-ui, sans-serif;

  --r-sm: 4px;
  --r-md: 10px;
  --r-lg: 18px;

  --shadow-card:  0 2px 14px rgba(26,39,68,.09);
  --shadow-hover: 0 10px 36px rgba(26,39,68,.18);
  --shadow-top:   0 2px 18px rgba(26,39,68,.14);

  --sp-xs: .5rem;
  --sp-sm: 1rem;
  --sp-md: 1.75rem;
  --sp-lg: 3rem;
  --sp-xl: 5rem;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font-body);
  background: var(--cream);
  color: var(--text-primary);
  line-height: 1.72;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ── Layout ──────────────────────────────────────────────────── */
.container { max-width: 1080px; margin: 0 auto; padding: 0 var(--sp-md); }

/* ── Site header ─────────────────────────────────────────────── */
.site-header {
  background: var(--navy);
  color: var(--white);
  padding: .9rem 0;
  position: sticky;
  top: 0;
  z-index: 200;
  box-shadow: var(--shadow-top);
}
.site-header .container {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  flex-wrap: wrap;
}
.site-logo {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: .06em;
  text-transform: uppercase;
  white-space: nowrap;
}
.site-logo em { font-style: normal; font-weight: 300; opacity: .6; }

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .35em;
  font-size: .82rem;
  flex-wrap: wrap;
  margin-left: auto;
}
.breadcrumb a { color: rgba(255,255,255,.55); transition: color .2s; }
.breadcrumb a:hover { color: var(--white); }
.breadcrumb .sep { color: rgba(255,255,255,.25); }
.breadcrumb .current { color: var(--white); font-weight: 600; }

/* ── Accent stripe (top of page) ─────────────────────────────── */
.accent-stripe {
  height: 5px;
  background: var(--accent);
}

/* ── Page hero ───────────────────────────────────────────────── */
.page-hero {
  padding: var(--sp-lg) 0 var(--sp-md);
  border-bottom: 1px solid var(--cream-dark);
}
.section-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  padding: .28em .85em;
  border-radius: var(--r-sm);
  margin-bottom: var(--sp-sm);
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  color: var(--navy);
  line-height: 1.1;
  margin-bottom: .4rem;
}
.page-title .num { color: var(--accent); font-style: italic; }
.page-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
  max-width: 620px;
}
.art-range {
  display: inline-block;
  margin-top: .75rem;
  font-size: .8rem;
  color: var(--text-light);
  letter-spacing: .08em;
  border: 1px solid var(--cream-dark);
  padding: .2em .7em;
  border-radius: 20px;
}

/* ── Main content ────────────────────────────────────────────── */
.page-content { padding: var(--sp-lg) 0; flex: 1; }

/* ── Synthesis block ─────────────────────────────────────────── */
.synthesis {
  background: var(--white);
  border-left: 5px solid var(--accent);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  padding: var(--sp-md) var(--sp-lg);
  margin-bottom: var(--sp-lg);
  box-shadow: var(--shadow-card);
}
.synthesis-label {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--sp-sm);
}
.synthesis p {
  font-size: 1.05rem;
  color: var(--text-mid);
  margin-bottom: .9rem;
}
.synthesis p:last-child { margin-bottom: 0; }
.synthesis strong { color: var(--text-primary); font-weight: 700; }

/* ── Section heading ─────────────────────────────────────────── */
.section-heading {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: var(--sp-md);
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--cream-dark);
}

/* ── Cards grid ──────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
}
.card {
  background: var(--white);
  border-radius: var(--r-lg);
  padding: var(--sp-md);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: .5rem;
  border-top: 4px solid var(--card-color, var(--navy));
  transition: transform .2s, box-shadow .2s;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-hover); }
.card-number {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--card-color, var(--navy));
}
.card-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}
.card-arts {
  font-size: .78rem;
  color: var(--text-light);
}
.card-desc {
  font-size: .9rem;
  color: var(--text-secondary);
  line-height: 1.55;
  flex: 1;
}
.card-arrow {
  align-self: flex-end;
  font-size: 1.1rem;
  color: var(--card-color, var(--navy));
  margin-top: .4rem;
}

/* ── Article list ────────────────────────────────────────────── */
.articles-list {
  display: flex;
  flex-direction: column;
  gap: .65rem;
  margin-bottom: var(--sp-lg);
}
.article-row {
  background: var(--white);
  border-radius: var(--r-md);
  padding: var(--sp-sm) var(--sp-md);
  display: grid;
  grid-template-columns: 5rem 1fr auto;
  align-items: start;
  gap: var(--sp-sm);
  box-shadow: var(--shadow-card);
  border-left: 3px solid var(--accent);
  transition: transform .15s, box-shadow .15s;
}
.article-row:hover { transform: translateX(4px); box-shadow: var(--shadow-hover); }
.art-num {
  font-weight: 700;
  font-size: .88rem;
  color: var(--accent);
  padding-top: .1rem;
  white-space: nowrap;
}
.art-body {}
.art-title {
  font-weight: 700;
  font-size: .98rem;
  color: var(--text-primary);
  margin-bottom: .18rem;
}
.art-summary {
  font-size: .88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.art-boe-link {
  font-size: .75rem;
  color: var(--text-light);
  border: 1px solid var(--cream-dark);
  padding: .22em .65em;
  border-radius: var(--r-sm);
  white-space: nowrap;
  transition: all .2s;
  align-self: center;
  flex-shrink: 0;
}
.art-boe-link:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Test CTA block ──────────────────────────────────────────── */
.test-cta {
  background: var(--navy);
  border-radius: var(--r-lg);
  padding: var(--sp-md) var(--sp-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-md);
  margin-bottom: var(--sp-lg);
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}
.test-cta::before {
  content: '✎';
  position: absolute;
  right: -10px;
  top: -15px;
  font-size: 8rem;
  color: rgba(255,255,255,.04);
  pointer-events: none;
}
.test-cta-info h3 {
  font-family: var(--font-display);
  color: var(--white);
  font-size: 1.3rem;
  margin-bottom: .3rem;
}
.test-cta-info p {
  color: rgba(255,255,255,.6);
  font-size: .9rem;
}
.test-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--accent);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  padding: .75em 1.6em;
  border-radius: var(--r-md);
  transition: opacity .2s, transform .2s;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.test-btn:hover { opacity: .88; transform: scale(1.03); }
.test-btn.soon {
  background: rgba(255,255,255,.12);
  cursor: default;
  pointer-events: none;
}

/* ── Key facts strip ─────────────────────────────────────────── */
.key-facts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-sm);
  margin-bottom: var(--sp-lg);
}
.key-fact {
  background: var(--white);
  border-radius: var(--r-md);
  padding: var(--sp-sm) var(--sp-md);
  box-shadow: var(--shadow-card);
  border-top: 3px solid var(--accent);
  flex: 1;
  min-width: 180px;
}
.key-fact-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .25rem;
}
.key-fact-value {
  font-size: .95rem;
  color: var(--text-mid);
  line-height: 1.4;
}

/* ── Divider ─────────────────────────────────────────────────── */
.divider { border: none; border-top: 1px solid var(--cream-dark); margin: var(--sp-lg) 0; }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy);
  color: rgba(255,255,255,.45);
  text-align: center;
  padding: var(--sp-md) var(--sp-sm);
  font-size: .82rem;
  margin-top: auto;
}
.site-footer a { color: rgba(255,255,255,.65); }
.site-footer a:hover { color: var(--white); }

/* ── HOME PAGE ───────────────────────────────────────────────── */
.home-hero {
  background: var(--navy);
  color: var(--white);
  padding: var(--sp-xl) 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.home-hero::after {
  content: '1978';
  position: absolute;
  bottom: -1.5rem;
  right: 2rem;
  font-family: var(--font-display);
  font-size: 18rem;
  font-weight: 900;
  color: rgba(255,255,255,.03);
  line-height: 1;
  pointer-events: none;
}
.home-eyebrow {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .35em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: var(--sp-sm);
}
.home-title {
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.02em;
  margin-bottom: .6rem;
}
.home-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,.6);
  max-width: 520px;
  margin: 0 auto var(--sp-lg);
  font-weight: 300;
  line-height: 1.65;
}
.home-meta {
  display: inline-flex;
  gap: var(--sp-md);
  flex-wrap: wrap;
  justify-content: center;
}
.home-meta-item {
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  letter-spacing: .06em;
}
.home-meta-item strong { color: rgba(255,255,255,.8); }

.home-sections { padding: var(--sp-lg) 0 var(--sp-xl); }
.group-label {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: var(--sp-md);
  padding-bottom: .5rem;
  border-bottom: 2px solid var(--cream-dark);
}

/* Home cards */
.home-card {
  background: var(--white);
  border-radius: var(--r-lg);
  padding: var(--sp-md) var(--sp-lg);
  box-shadow: var(--shadow-card);
  display: block;
  border-left: 6px solid var(--card-color, var(--navy));
  transition: transform .2s, box-shadow .2s;
  margin-bottom: var(--sp-md);
}
.home-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.home-card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--sp-sm);
  margin-bottom: .4rem;
}
.home-card-number {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--card-color, var(--navy));
}
.home-card-arts { font-size: .78rem; color: var(--text-light); }
.home-card-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: .4rem;
  line-height: 1.2;
}
.home-card-desc { font-size: .95rem; color: var(--text-secondary); line-height: 1.58; }

/* Preámbulo card — special inverted */
.home-card.inverted {
  background: var(--navy);
  border-left-color: #8B2252;
}
.home-card.inverted .home-card-title { color: var(--white); }
.home-card.inverted .home-card-desc { color: rgba(255,255,255,.65); }
.home-card.inverted .home-card-number { color: rgba(255,255,255,.45); }
.home-card.inverted .home-card-arts { color: rgba(255,255,255,.35); }

/* Titles grid */
.titles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: var(--sp-sm);
  margin-bottom: var(--sp-md);
}
.titles-grid .home-card { margin-bottom: 0; }

/* Disposiciones grid */
.disp-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: var(--sp-sm);
}

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 720px) {
  .titles-grid { grid-template-columns: 1fr; }
  .cards-grid { grid-template-columns: 1fr; }
  .article-row { grid-template-columns: 4rem 1fr; }
  .art-boe-link { display: none; }
  .test-cta { flex-direction: column; align-items: flex-start; }
  .home-hero { padding: var(--sp-lg) 0; }
  .home-hero::after { display: none; }
  .synthesis { padding: var(--sp-md); }
}