/* ============================================================
   dinero.tusueldoreal.es — Design System
   Premium editorial finance portal
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=DM+Mono:wght@400;500&display=swap');

/* ── Variables ───────────────────────────────────────────── */
:root {
  --color-bg:        #F8F7F4;
  --color-surface:   #FFFFFF;
  --color-surface-2: #F2F1EE;
  --color-border:    #E4E2DC;
  --color-text:      #1A1916;
  --color-text-2:    #4A4843;
  --color-text-3:    #7A7874;
  --color-accent:    #1F6B4E;
  --color-accent-lt: #E8F3EE;
  --color-accent-2:  #B8860B;
  --color-accent-2lt:#FBF6E7;
  --color-tag-bg:    #EDF4F0;
  --color-tag-text:  #1F6B4E;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', monospace;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  32px;

  --shadow-xs: 0 1px 3px rgba(0,0,0,.05);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.07);
  --shadow-md: 0 4px 20px rgba(0,0,0,.09);
  --shadow-lg: 0 8px 40px rgba(0,0,0,.12);

  --transition: 250ms cubic-bezier(.4,0,.2,1);
  --max-w:  1180px;
  --max-w-text: 760px;
}

/* ── Reset ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  font-size: 1rem;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}
img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { padding-left: 1.4rem; }
li { margin-bottom: .3rem; }
p { margin-bottom: 1.1rem; }
p:last-child { margin-bottom: 0; }

/* ── Typography ──────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  letter-spacing: -.02em;
}
h1 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 1.2rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); margin-bottom: .8rem; }
h4 { font-size: 1.1rem; margin-bottom: .6rem; font-family: var(--font-body); font-weight: 600; }

/* ── Header ──────────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248,247,244,.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 64px;
  display: flex;
  align-items: center;
  gap: 2rem;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
  white-space: nowrap;
  flex-shrink: 0;
}
.logo span { color: var(--color-accent); }
.logo:hover { text-decoration: none; }

.main-nav { display: flex; align-items: center; gap: .25rem; flex: 1; }
.main-nav a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--color-text-2);
  padding: .4rem .7rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  white-space: nowrap;
}
.main-nav a:hover { color: var(--color-accent); background: var(--color-accent-lt); text-decoration: none; }
.main-nav a.active { color: var(--color-accent); }

.header-cta {
  margin-left: auto;
  background: var(--color-accent);
  color: #fff !important;
  padding: .45rem 1.1rem !important;
  border-radius: var(--radius-sm);
  font-weight: 600 !important;
  font-size: .85rem !important;
  transition: background var(--transition), transform var(--transition) !important;
}
.header-cta:hover { background: #185a40 !important; transform: translateY(-1px); }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
  margin-left: auto;
  color: var(--color-text);
}

/* ── Container ───────────────────────────────────────────── */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container-text {
  max-width: var(--max-w-text);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 700px;
  max-height: 700px;
  background: radial-gradient(circle, rgba(31,107,78,.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: var(--color-accent-lt);
  color: var(--color-accent);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .35rem .9rem;
  border-radius: 100px;
  margin-bottom: 1.5rem;
}
.hero h1 { max-width: 720px; }
.hero-lead {
  font-size: 1.15rem;
  color: var(--color-text-2);
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.75;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none !important;
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover { background: #185a40; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); box-shadow: var(--shadow-sm); }

/* ── Cards ───────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: rgba(31,107,78,.2); }
.card-link { display: block; text-decoration: none !important; color: inherit; }
.card-link:hover { text-decoration: none !important; }
.card-tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-tag-text);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-transform: uppercase;
  padding: .2rem .65rem;
  border-radius: 100px;
  margin-bottom: .9rem;
}
.card h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.card p { font-size: .9rem; color: var(--color-text-2); margin-bottom: 0; }
.card-arrow {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  color: var(--color-accent);
  font-size: .85rem;
  font-weight: 600;
  margin-top: 1rem;
}

/* ── Grid layouts ────────────────────────────────────────── */
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: 1.5rem; }
.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1.25rem; }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px,1fr)); gap: 1.5rem; }

/* ── Sections ────────────────────────────────────────────── */
.section { padding: 5rem 0; }
.section-sm { padding: 3rem 0; }
.section-alt { background: var(--color-surface); }
.section-header { margin-bottom: 3rem; }
.section-header h2 { margin-bottom: .6rem; }
.section-header p { color: var(--color-text-2); font-size: 1.05rem; max-width: 560px; }
.section-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

/* ── Hub cards ───────────────────────────────────────────── */
.hub-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 2rem;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.hub-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-accent);
  opacity: 0;
  transition: opacity var(--transition);
}
.hub-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.hub-card:hover::before { opacity: 1; }
.hub-icon { font-size: 2rem; margin-bottom: 1rem; }
.hub-card h3 { font-size: 1.2rem; margin-bottom: .5rem; }
.hub-card p { font-size: .875rem; color: var(--color-text-2); margin-bottom: 1rem; }
.hub-links { list-style: none; padding: 0; margin: 0; }
.hub-links li { border-top: 1px solid var(--color-border); }
.hub-links li:first-child { border-top: none; }
.hub-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .55rem 0;
  font-size: .875rem;
  color: var(--color-text-2);
  transition: color var(--transition);
}
.hub-links a:hover { color: var(--color-accent); text-decoration: none; }
.hub-links a::after { content: '→'; opacity: .5; }

/* ── Article layout ──────────────────────────────────────── */
.article-header { padding: 3.5rem 0 2.5rem; border-bottom: 1px solid var(--color-border); margin-bottom: 3rem; }
.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1.5rem;
}
.article-meta span { font-size: .8rem; color: var(--color-text-3); }
.article-meta .sep { color: var(--color-border); }
.article-body h2 { margin-top: 2.5rem; }
.article-body h3 { margin-top: 2rem; }
.article-body ul, .article-body ol { margin-bottom: 1.2rem; }
.article-body li { margin-bottom: .5rem; }
.article-body strong { color: var(--color-text); font-weight: 600; }

/* ── Breadcrumb ──────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  flex-wrap: wrap;
  font-size: .8rem;
  color: var(--color-text-3);
  margin-bottom: 1.5rem;
}
.breadcrumb a { color: var(--color-text-3); }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .sep { color: var(--color-border); }

/* ── Callout / highlight boxes ───────────────────────────── */
.callout {
  background: var(--color-accent-lt);
  border-left: 4px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.2rem 1.5rem;
  margin: 2rem 0;
}
.callout-gold {
  background: var(--color-accent-2lt);
  border-left-color: var(--color-accent-2);
}
.callout strong { color: var(--color-accent); }
.callout-gold strong { color: var(--color-accent-2); }

/* ── Table ───────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; margin: 2rem 0; border-radius: var(--radius-md); border: 1px solid var(--color-border); }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th { background: var(--color-surface-2); font-weight: 600; font-family: var(--font-body); text-align: left; padding: .9rem 1.1rem; border-bottom: 1px solid var(--color-border); font-size: .85rem; color: var(--color-text-2); text-transform: uppercase; letter-spacing: .04em; }
td { padding: .85rem 1.1rem; border-bottom: 1px solid var(--color-border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-surface-2); }
.check { color: var(--color-accent); font-weight: 700; }
.cross { color: #c0392b; }

/* ── Related content ─────────────────────────────────────── */
.related-section {
  margin-top: 4rem;
  padding-top: 3rem;
  border-top: 1px solid var(--color-border);
}
.related-section h2 { font-size: 1.4rem; margin-bottom: 1.5rem; }

/* ── FAQ ─────────────────────────────────────────────────── */
.faq { margin: 2.5rem 0; }
.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  margin-bottom: .75rem;
  overflow: hidden;
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.1rem 1.3rem;
  cursor: pointer;
  font-weight: 600;
  font-size: .95rem;
  background: var(--color-surface);
  transition: background var(--transition);
  user-select: none;
  list-style: none;
}
.faq-q:hover { background: var(--color-surface-2); }
.faq-q .icon { flex-shrink: 0; transition: transform var(--transition); font-style: normal; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a {
  padding: 0 1.3rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  font-size: .9rem;
  color: var(--color-text-2);
}
.faq-item.open .faq-a { max-height: 500px; padding: .9rem 1.3rem 1.2rem; }

/* ── Sidebar layout ──────────────────────────────────────── */
.layout-sidebar {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 3rem;
  align-items: start;
}
.sidebar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}
.sidebar-card h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; color: var(--color-text-3); margin-bottom: 1rem; font-family: var(--font-body); }
.sidebar-links { list-style: none; padding: 0; }
.sidebar-links li { border-top: 1px solid var(--color-border); }
.sidebar-links li:first-child { border-top: none; }
.sidebar-links a { display: block; padding: .6rem 0; font-size: .875rem; color: var(--color-text-2); transition: color var(--transition); }
.sidebar-links a:hover { color: var(--color-accent); text-decoration: none; }

/* ── Steps ───────────────────────────────────────────────── */
.steps { list-style: none; padding: 0; counter-reset: step; }
.steps li {
  counter-increment: step;
  display: flex;
  gap: 1.2rem;
  margin-bottom: 2rem;
  position: relative;
}
.steps li::before {
  content: counter(step);
  flex-shrink: 0;
  width: 2.2rem;
  height: 2.2rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: .85rem;
  margin-top: .1rem;
}
.step-content h4 { margin-bottom: .4rem; }
.step-content p { font-size: .9rem; color: var(--color-text-2); margin-bottom: 0; }

/* ── Stat boxes ──────────────────────────────────────────── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px,1fr)); gap: 1rem; margin: 2rem 0; }
.stat-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  text-align: center;
}
.stat-num { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--color-accent); display: block; line-height: 1; margin-bottom: .4rem; }
.stat-label { font-size: .8rem; color: var(--color-text-3); }

/* ── Banner ──────────────────────────────────────────────── */
.banner {
  background: linear-gradient(135deg, #1F6B4E 0%, #145838 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 3.5rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.banner::before {
  content: '';
  position: absolute;
  top: -50%; right: -20%;
  width: 50vw; height: 50vw;
  background: radial-gradient(circle, rgba(255,255,255,.07) 0%, transparent 70%);
  pointer-events: none;
}
.banner h2 { color: #fff; font-size: clamp(1.5rem,3vw,2rem); margin-bottom: .75rem; }
.banner p { color: rgba(255,255,255,.8); max-width: 500px; margin: 0 auto 1.8rem; }
.banner .btn-primary { background: #fff; color: var(--color-accent); }
.banner .btn-primary:hover { background: rgba(255,255,255,.9); }

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  background: #111110;
  color: rgba(255,255,255,.65);
  padding: 4rem 0 2rem;
  margin-top: 5rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}
.footer-brand .logo { color: #fff; font-size: 1.2rem; margin-bottom: .75rem; display: block; }
.footer-brand p { font-size: .85rem; line-height: 1.65; max-width: 260px; }
.footer-col h5 {
  color: #fff;
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: .55rem; }
.footer-col a { color: rgba(255,255,255,.55); font-size: .85rem; transition: color var(--transition); }
.footer-col a:hover { color: #fff; text-decoration: none; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: .8rem;
}
.footer-legal { display: flex; gap: 1.5rem; }
.footer-legal a { color: rgba(255,255,255,.4); }
.footer-legal a:hover { color: rgba(255,255,255,.8); }

/* ── Category page header ────────────────────────────────── */
.cat-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 3.5rem 0 3rem;
  margin-bottom: 3.5rem;
}
.cat-header h1 { margin-bottom: .75rem; }
.cat-header p { font-size: 1.1rem; color: var(--color-text-2); max-width: 600px; }

/* ── Tag badges ──────────────────────────────────────────── */
.tag { display: inline-flex; align-items: center; gap: .3rem; background: var(--color-surface-2); color: var(--color-text-2); font-size: .75rem; font-weight: 500; padding: .25rem .65rem; border-radius: 100px; }
.tag-green { background: var(--color-accent-lt); color: var(--color-accent); }
.tag-gold { background: var(--color-accent-2lt); color: var(--color-accent-2); }

/* ── Checklist ───────────────────────────────────────────── */
.checklist { list-style: none; padding: 0; }
.checklist li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  padding: .6rem 0;
  border-bottom: 1px solid var(--color-border);
  font-size: .95rem;
}
.checklist li:last-child { border-bottom: none; }
.checklist li::before {
  content: '✓';
  flex-shrink: 0;
  width: 1.4rem;
  height: 1.4rem;
  background: var(--color-accent-lt);
  color: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .7rem;
  font-weight: 700;
  margin-top: .1rem;
}

/* ── Comparison boxes ────────────────────────────────────── */
.compare-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.5rem; margin: 2rem 0; }
.compare-box {
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}
.compare-box.winner { border-color: var(--color-accent); }
.compare-winner-badge {
  display: inline-block;
  background: var(--color-accent);
  color: #fff;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: .2rem .7rem;
  border-radius: 100px;
  margin-bottom: .8rem;
}
.compare-box h3 { font-size: 1.3rem; margin-bottom: .4rem; }
.compare-box .price { font-size: 1rem; color: var(--color-text-3); margin-bottom: 1rem; font-family: var(--font-mono); }
.pros-cons { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.2rem; }
.pros h5, .cons h5 { font-size: .75rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; margin-bottom: .5rem; }
.pros h5 { color: var(--color-accent); }
.cons h5 { color: #c0392b; }
.pros ul, .cons ul { list-style: none; padding: 0; font-size: .85rem; }
.pros li::before { content: '+ '; color: var(--color-accent); font-weight: 700; }
.cons li::before { content: '− '; color: #c0392b; font-weight: 700; }

/* ── Animate on scroll ───────────────────────────────────── */
.anim { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.anim.visible { opacity: 1; transform: none; }
.anim-delay-1 { transition-delay: .1s; }
.anim-delay-2 { transition-delay: .2s; }
.anim-delay-3 { transition-delay: .3s; }
.anim-delay-4 { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .anim { opacity: 1; transform: none; transition: none; }
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .layout-sidebar { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .mobile-toggle { display: block; }
  .main-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0; bottom: 0;
    background: var(--color-surface);
    padding: 2rem 1.5rem;
    overflow-y: auto;
    align-items: flex-start;
    gap: .25rem;
    z-index: 99;
  }
  .main-nav.open a { padding: .75rem .5rem; font-size: 1rem; width: 100%; }
  .header-cta { display: none; }
  .hero { padding: 3rem 0 2.5rem; }
  .section { padding: 3rem 0; }
  .compare-grid { grid-template-columns: 1fr; }
  .pros-cons { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .banner { padding: 2.5rem 1.5rem; }
}
@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .stat-grid { grid-template-columns: repeat(2,1fr); }
}