/* ══════════════════════════════════════════════════════════
   Ricardo Carvalho CISO Portfolio — Design System
   Typography: DM Serif Display + DM Sans + JetBrains Mono
   Aesthetic: Institutional Dark / Refined Executive
   ══════════════════════════════════════════════════════════ */

/* ── Variables ─────────────────────────────────────────── */
:root {
  --navy:       #1a2a3a;
  --navy-mid:   #243447;
  --blue:       #2c5282;
  --blue-light: #3a6db0;
  --gold:       #c9a227;
  --gold-light: #e0b83a;
  --gold-dim:   #c9a22720;

  --bg:         #f8f9fa;
  --bg-alt:     #eef0f3;
  --bg-card:    #ffffff;
  --border:     #dde1e7;
  --border-soft:#eaecf0;

  --text:       #1e2a38;
  --text-mid:   #4a5568;
  --text-soft:  #718096;
  --text-inv:   #e8edf3;

  --success:    #16a34a;
  --danger:     #dc2626;

  --radius:     12px;
  --radius-sm:  6px;
  --radius-lg:  20px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg:  0 16px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);
  --shadow-gold:0 8px 32px rgba(201,162,39,.15);

  --transition: 200ms cubic-bezier(.4,0,.2,1);
  --font-serif: 'DM Serif Display', Georgia, serif;
  --font-sans:  'DM Sans', system-ui, sans-serif;
  --font-mono:  'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="dark"] {
  --bg:         #0d1520;
  --bg-alt:     #111d2b;
  --bg-card:    #16243a;
  --border:     #243447;
  --border-soft:#1e3050;

  --text:       #e2e8f0;
  --text-mid:   #a0aec0;
  --text-soft:  #718096;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,.4);
  --shadow-lg:  0 16px 40px rgba(0,0,0,.5);
}

/* ── Reset & Base ──────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

img { max-width: 100%; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
select, input, textarea { font-family: inherit; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.mono { font-family: var(--font-mono); font-size: .85em; }

/* ── Navigation ────────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: var(--bg);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; gap: 32px;
  height: 72px;
}
.nav-logo {
  display: flex; align-items: center; gap: 12px;
  flex-shrink: 0;
}
.logo-rc {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--navy); color: var(--gold);
  font-family: var(--font-serif); font-size: 1.1rem; font-weight: 400;
  letter-spacing: -.5px;
  flex-shrink: 0;
}
.logo-text {
  display: flex; flex-direction: column; line-height: 1.2;
  font-size: .875rem; font-weight: 600; color: var(--text);
}
.logo-text small {
  font-size: .7rem; font-weight: 400; color: var(--text-soft);
  letter-spacing: .05em; text-transform: uppercase;
}
.nav-links {
  display: flex; align-items: center; gap: 4px; margin-left: auto;
}
.nav-link {
  padding: 8px 14px; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 500; color: var(--text-mid);
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--text); background: var(--bg-alt); }
.nav-link--cta {
  background: var(--navy); color: var(--gold) !important;
  border-radius: var(--radius-sm);
}
.nav-link--cta:hover { background: var(--navy-mid); }

.theme-toggle {
  width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-soft); flex-shrink: 0;
  transition: color var(--transition), background var(--transition);
}
.theme-toggle:hover { background: var(--bg-alt); color: var(--text); }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun  { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 36px; height: 36px; align-items: center; justify-content: center;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Section Headers ────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-label {
  display: inline-block;
  font-family: var(--font-mono); font-size: .75rem;
  letter-spacing: .12em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 12px;
}
.section-header h2 {
  font-family: var(--font-serif); font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--text); line-height: 1.15; margin-bottom: 16px;
}
.section-header p {
  max-width: 560px; margin: 0 auto;
  color: var(--text-soft); font-size: 1.05rem;
}

/* ── Buttons ────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px; border-radius: var(--radius-sm);
  background: var(--navy); color: var(--gold);
  font-weight: 600; font-size: .9rem; letter-spacing: .02em;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary:hover {
  background: var(--navy-mid); box-shadow: var(--shadow-gold);
  transform: translateY(-1px);
}
.btn-secondary {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 28px; border-radius: var(--radius-sm);
  background: transparent; color: var(--text);
  border: 1.5px solid var(--border); font-weight: 500; font-size: .9rem;
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}
.btn-secondary:hover {
  border-color: var(--navy); background: var(--bg-alt);
  transform: translateY(-1px);
}
.btn-outline {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 32px; border-radius: var(--radius-sm);
  background: transparent; color: var(--navy);
  border: 1.5px solid var(--navy); font-weight: 600; font-size: .9rem;
  transition: all var(--transition);
}
.btn-outline:hover { background: var(--navy); color: var(--gold); }
[data-theme="dark"] .btn-outline { color: var(--gold); border-color: var(--gold); }
[data-theme="dark"] .btn-outline:hover { background: var(--gold); color: var(--navy); }

.btn-sm { padding: 10px 20px; font-size: .8rem; }

/* ═══════════════════════════════════════════════════════════
   HERO
════════════════════════════════════════════════════════════ */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: center;
  background: var(--navy);
  color: var(--text-inv);
  position: relative; overflow: hidden;
  padding: 120px 0 80px;
}
.hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  color: var(--text-inv);
}
.hero-pattern { width: 100%; height: 100%; position: absolute; inset: 0; }

.hero-content {
  position: relative; z-index: 1;
  display: flex; flex-direction: column; gap: 20px;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--gold); padding: 6px 14px;
  border: 1px solid var(--gold); border-radius: 20px;
  opacity: 0; animation: fadeInDown .6s .1s forwards;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: .95; color: #fff;
  letter-spacing: -.02em;
  opacity: 0; animation: fadeInUp .7s .2s forwards;
}
.name-first { display: block; }
.name-last  { display: block; color: var(--gold); }

.hero-title-wrap {
  opacity: 0; animation: fadeInUp .7s .35s forwards;
}
.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: rgba(255,255,255,.9); font-weight: 400; margin-bottom: 8px;
}
.hero-subtitle-tags {
  display: flex; flex-wrap: wrap; gap: 4px; align-items: center;
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .06em; text-transform: uppercase;
  color: rgba(255,255,255,.4);
}
.hero-subtitle-tags .sep { color: var(--gold); opacity: .6; }

.hero-tagline {
  font-family: var(--font-serif); font-style: italic;
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: rgba(255,255,255,.7); line-height: 1.4;
  opacity: 0; animation: fadeInUp .7s .5s forwards;
}

.hero-location {
  display: flex; align-items: center; gap: 6px;
  font-size: .82rem; color: rgba(255,255,255,.4);
  font-family: var(--font-mono);
  opacity: 0; animation: fadeInUp .7s .55s forwards;
}

.hero-ctas {
  display: flex; flex-wrap: wrap; gap: 12px;
  opacity: 0; animation: fadeInUp .7s .65s forwards;
}

.hero-metrics-preview {
  display: flex; align-items: center; gap: 20px;
  margin-top: 8px; padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  opacity: 0; animation: fadeInUp .7s .8s forwards;
}
.preview-metric { display: flex; flex-direction: column; }
.preview-num {
  font-family: var(--font-mono); font-size: 1.5rem; font-weight: 500;
  color: var(--gold); line-height: 1;
}
.preview-label { font-size: .7rem; color: rgba(255,255,255,.4); margin-top: 4px; }
.preview-divider { width: 1px; height: 36px; background: rgba(255,255,255,.15); }

.hero-scroll {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.3); animation: bounce 2s infinite 1.5s;
}

/* ═══════════════════════════════════════════════════════════
   METRICS
════════════════════════════════════════════════════════════ */
.metrics-section {
  padding: 100px 0;
  background: var(--bg);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.metric-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 32px 28px;
  cursor: default;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  overflow: hidden;
}
.metric-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--border-soft);
  transition: background var(--transition);
}
.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--gold);
}
.metric-card:hover::before { background: var(--gold); }
.metric-card--highlight { background: var(--navy); border-color: var(--navy); }
.metric-card--highlight::before { background: var(--gold); }
.metric-card--highlight .metric-label,
.metric-card--highlight .metric-label small,
.metric-card--highlight .metric-icon { color: rgba(255,255,255,.7); }

.metric-icon {
  color: var(--text-soft); margin-bottom: 16px;
}
.metric-card--highlight .metric-icon { color: rgba(255,255,255,.4); }

.metric-value {
  display: flex; align-items: baseline; gap: 4px;
  margin-bottom: 8px;
}
.metric-num {
  font-family: var(--font-mono); font-size: 2.4rem; font-weight: 500;
  color: var(--navy); line-height: 1;
}
.metric-card--highlight .metric-num { color: var(--gold); }
.metric-num.counted { color: var(--gold); }
.metric-unit, .metric-arrow, .metric-num2 {
  font-family: var(--font-mono); font-size: 1rem;
  color: var(--text-soft);
}
.metric-prefix {
  position: absolute; top: 28px; right: 24px;
  font-family: var(--font-mono); font-size: .8rem;
  color: var(--text-soft);
}
.metric-label {
  font-size: .875rem; color: var(--text-mid); line-height: 1.4;
}
.metric-label small { font-size: .75rem; color: var(--text-soft); }

/* Tooltip */
[data-tooltip] { position: relative; }
[data-tooltip]::after {
  content: attr(data-tooltip);
  position: absolute; bottom: calc(100% + 10px); left: 50%; transform: translateX(-50%);
  background: var(--navy); color: rgba(255,255,255,.9);
  font-size: .75rem; line-height: 1.4; padding: 10px 14px;
  border-radius: var(--radius-sm); width: 260px;
  white-space: normal; text-align: left;
  opacity: 0; pointer-events: none; z-index: 50;
  transition: opacity var(--transition);
  box-shadow: var(--shadow-lg);
}
[data-tooltip]:hover::after { opacity: 1; }

/* ═══════════════════════════════════════════════════════════
   TIMELINE
════════════════════════════════════════════════════════════ */
.timeline-section {
  padding: 100px 0;
  background: var(--bg-alt);
}

.timeline {
  position: relative;
  display: flex; flex-direction: column; gap: 0;
  max-width: 860px; margin: 0 auto;
}

.timeline-item {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 0 24px;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity .5s, transform .5s;
}
.timeline-item.visible {
  opacity: 1; transform: none;
}

.timeline-marker {
  display: flex; flex-direction: column; align-items: center;
  padding-top: 28px;
}
.marker-dot {
  width: 14px; height: 14px;
  border-radius: 50%; border: 3px solid var(--navy);
  background: var(--bg-card); flex-shrink: 0;
  transition: background var(--transition);
}
.timeline-item:hover .marker-dot { background: var(--gold); border-color: var(--gold); }
.marker-line { width: 2px; flex: 1; background: var(--border); margin-top: 6px; min-height: 40px; }

.timeline-card {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 28px;
  margin-bottom: 20px;
  transition: box-shadow var(--transition);
}
.timeline-card:hover { box-shadow: var(--shadow-md); }

.tc-header { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.tc-period {
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--gold); text-transform: uppercase; letter-spacing: .06em;
}
.tc-current span {
  font-size: .7rem; background: var(--gold); color: var(--navy);
  padding: 2px 10px; border-radius: 20px; font-weight: 600;
  letter-spacing: .04em;
}
.tc-role {
  font-family: var(--font-serif); font-size: 1.25rem;
  color: var(--text); margin-bottom: 4px;
}
.tc-org {
  font-size: .875rem; color: var(--blue);
  font-weight: 600; margin-bottom: 8px;
}
.tc-context {
  display: flex; gap: 16px; margin-bottom: 16px;
  font-size: .75rem; color: var(--text-soft);
  font-family: var(--font-mono);
}
.tc-results {
  display: flex; flex-direction: column; gap: 8px;
  margin-bottom: 16px;
}
.tc-results li {
  font-size: .875rem; color: var(--text-mid); padding-left: 16px;
  position: relative; line-height: 1.5;
}
.tc-results li::before {
  content: '→'; position: absolute; left: 0;
  color: var(--gold); font-size: .75rem;
}

.tc-expand {
  display: flex; align-items: center; gap: 6px;
  font-size: .8rem; color: var(--blue); font-weight: 500;
  padding: 0; margin-bottom: 12px;
  transition: color var(--transition);
}
.tc-expand:hover { color: var(--navy); }
.tc-expand svg { transition: transform var(--transition); }
.tc-expand[aria-expanded="true"] svg { transform: rotate(180deg); }

.tc-expanded-content { padding-top: 4px; }

.tc-tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px;
}
.tc-tags span {
  font-size: .7rem; padding: 3px 10px; border-radius: 4px;
  background: var(--bg-alt); color: var(--text-soft);
  font-family: var(--font-mono); border: 1px solid var(--border);
}

/* ═══════════════════════════════════════════════════════════
   STACK
════════════════════════════════════════════════════════════ */
.stack-section { padding: 100px 0; background: var(--bg); }

.stack-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px; margin-bottom: 40px;
}

.stack-category {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 28px;
  transition: box-shadow var(--transition);
}
.stack-category:hover { box-shadow: var(--shadow-md); }

.stack-cat-header {
  display: flex; align-items: center; gap: 12px; margin-bottom: 20px;
}
.stack-icon { color: var(--text-soft); }
.stack-cat-header h3 {
  font-size: 1rem; font-weight: 600; color: var(--text); flex: 1;
}
.stack-level {
  font-family: var(--font-mono); font-size: .68rem;
  padding: 3px 10px; border-radius: 20px; font-weight: 500;
}
.stack-level.expert   { background: var(--gold-dim); color: var(--gold); }
.stack-level.advanced { background: rgba(44,82,130,.1); color: var(--blue); }
.stack-level.familiar { background: var(--bg-alt); color: var(--text-soft); }

.stack-items { display: flex; flex-wrap: wrap; gap: 8px; }
.stack-tag {
  font-family: var(--font-mono); font-size: .75rem;
  padding: 5px 12px; border-radius: var(--radius-sm);
  background: var(--bg-alt); color: var(--text-mid);
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}
.stack-tag:hover { border-color: var(--gold); color: var(--text); }

.stack-note {
  background: var(--navy); border-radius: var(--radius);
  padding: 24px 28px; display: flex; align-items: center; gap: 20px;
  color: rgba(255,255,255,.7);
}
.stack-note code {
  color: var(--gold); font-size: .85rem; white-space: nowrap;
  flex-shrink: 0;
}
.stack-note p { font-size: .9rem; line-height: 1.5; }
.stack-note strong { color: #fff; }

/* ═══════════════════════════════════════════════════════════
   CERTIFICATIONS
════════════════════════════════════════════════════════════ */
.certs-section { padding: 100px 0; background: var(--bg-alt); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px; margin-bottom: 48px;
}

.cert-card {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  border-radius: var(--radius); padding: 24px;
  display: flex; flex-direction: column; gap: 12px;
  position: relative; overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}
.cert-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.cert-card--ongoing { border-color: var(--gold); }
.cert-card--roadmap { background: var(--navy); border-color: var(--navy-mid); }

.cert-status {
  display: inline-block; font-family: var(--font-mono);
  font-size: .68rem; font-weight: 600; letter-spacing: .06em;
  text-transform: uppercase; padding: 3px 10px; border-radius: 20px;
  align-self: flex-start;
}
.cert-status.completed { background: rgba(22,163,74,.1); color: var(--success); }
.cert-status.ongoing   { background: var(--gold-dim); color: var(--gold); }
.cert-status.roadmap   { background: rgba(255,255,255,.1); color: rgba(255,255,255,.7); }

.cert-progress {
  height: 3px; background: var(--border); border-radius: 2px;
}
.cert-progress-bar {
  height: 100%; background: var(--gold); border-radius: 2px;
  transition: width 1s ease;
}

.cert-body h3 {
  font-size: .95rem; font-weight: 600; color: var(--text); line-height: 1.3;
}
.cert-card--roadmap .cert-body h3 { color: var(--gold); }
.cert-org { font-size: .8rem; color: var(--blue); font-weight: 500; }
.cert-detail { font-size: .78rem; color: var(--text-soft); margin-top: 4px; }

.cert-check {
  position: absolute; top: 20px; right: 20px;
  color: var(--success);
}
.cert-icon { color: var(--text-soft); }
.roadmap-icon { color: var(--gold); opacity: .6; }

.roadmap-item {
  display: block; font-family: var(--font-mono); font-size: .72rem;
  color: rgba(255,255,255,.5); margin-top: 4px;
}

.idiomas { margin-top: 20px; }
.idiomas h3 {
  font-family: var(--font-serif); font-size: 1.2rem;
  margin-bottom: 16px; text-align: center;
}
.idiomas-list {
  display: flex; justify-content: center; gap: 32px; flex-wrap: wrap;
}
.idioma-item {
  display: flex; align-items: center; gap: 10px;
  font-size: .9rem; color: var(--text-mid);
}
.idioma-flag { font-size: 1.2rem; }
.idioma-level {
  font-family: var(--font-mono); font-size: .7rem;
  color: var(--text-soft); padding: 2px 8px;
  background: var(--bg-alt); border-radius: 4px;
}

/* ═══════════════════════════════════════════════════════════
   BLOG
════════════════════════════════════════════════════════════ */
.blog-section { padding: 100px 0; background: var(--bg); }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px; margin-bottom: 40px;
}

.blog-card {
  background: var(--bg-card); border: 1px solid var(--border-soft);
  border-radius: var(--radius); overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.blog-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--gold); }
.blog-card--featured {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 1fr 1fr;
}

.blog-card-inner { padding: 28px; display: flex; flex-direction: column; height: 100%; }
.blog-card--featured .blog-card-inner { padding: 36px; }

.blog-card-meta {
  display: flex; gap: 8px; align-items: center;
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-soft); margin-bottom: 12px;
}
.blog-card-title {
  font-family: var(--font-serif); font-size: 1.2rem;
  color: var(--text); line-height: 1.3; margin-bottom: 12px;
}
.blog-card--featured .blog-card-title { font-size: 1.6rem; }
.blog-card-title a:hover { color: var(--blue); }
.blog-card-summary { font-size: .875rem; color: var(--text-soft); line-height: 1.6; flex: 1; }
.blog-card-footer {
  display: flex; align-items: center; justify-content: space-between;
  margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--border-soft);
}
.blog-tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag {
  font-size: .7rem; padding: 3px 10px; border-radius: 20px;
  background: var(--bg-alt); color: var(--text-soft);
  border: 1px solid var(--border);
  transition: border-color var(--transition), color var(--transition);
}
.tag:hover { border-color: var(--gold); color: var(--text); }
.blog-read-more { font-size: .82rem; color: var(--blue); font-weight: 600; }
.blog-read-more:hover { color: var(--navy); }
.blog-cta { text-align: center; }

/* ═══════════════════════════════════════════════════════════
   CONTACT
════════════════════════════════════════════════════════════ */
.contact-section {
  padding: 100px 0;
  background: var(--bg-alt);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px; align-items: start;
}

.contact-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 16px; line-height: 1.2;
}
.contact-info p { color: var(--text-soft); line-height: 1.7; margin-bottom: 32px; }

.contact-channels { display: flex; flex-direction: column; gap: 12px; margin-bottom: 28px; }
.channel-item {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 18px; border-radius: var(--radius-sm);
  background: var(--bg-card); border: 1px solid var(--border-soft);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.channel-item:hover { border-color: var(--gold); box-shadow: var(--shadow-sm); }
.channel-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--bg-alt); display: flex; align-items: center; justify-content: center;
  color: var(--navy); flex-shrink: 0;
}
.channel-label { font-size: .72rem; color: var(--text-soft); font-family: var(--font-mono); }
.channel-value { font-size: .85rem; font-weight: 500; color: var(--text); }

.availability-badge {
  display: flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: .72rem;
  color: var(--text-soft); letter-spacing: .04em;
}

/* Form */
.contact-form { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group label {
  font-size: .78rem; font-weight: 600; color: var(--text);
  letter-spacing: .02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--border); background: var(--bg-card);
  color: var(--text); font-size: .9rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(26,42,58,.08);
}
.form-group textarea { resize: vertical; min-height: 120px; }
.form-group select { appearance: none; cursor: pointer; }

.form-privacy {
  display: flex; align-items: center; gap: 8px;
  font-size: .75rem; color: var(--text-soft);
}

.btn-submit { width: 100%; justify-content: center; }
.spin { animation: spin 1s linear infinite; }

.form-feedback {
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: .875rem;
}
.form-feedback.success { background: rgba(22,163,74,.1); color: var(--success); }
.form-feedback.error   { background: rgba(220,38,38,.1); color: var(--danger); }

/* ═══════════════════════════════════════════════════════════
   FOOTER
════════════════════════════════════════════════════════════ */
.site-footer {
  background: var(--navy); color: rgba(255,255,255,.6);
  padding: 60px 0 0;
}
.footer-inner {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: 60px; padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand { display: flex; flex-direction: column; gap: 12px; }
.footer-brand p { font-size: .875rem; line-height: 1.5; }
.footer-brand small { color: rgba(255,255,255,.4); font-size: .75rem; }
.footer-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.footer-col h4 {
  font-size: .75rem; font-weight: 600; letter-spacing: .1em;
  text-transform: uppercase; color: rgba(255,255,255,.4);
  margin-bottom: 16px; font-family: var(--font-mono);
}
.footer-col ul { display: flex; flex-direction: column; gap: 8px; }
.footer-col a {
  font-size: .85rem; color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  padding: 24px 0;
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: space-between; align-items: center;
  font-size: .75rem;
}
.footer-privacy { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-privacy a { color: rgba(255,255,255,.5); }
.footer-privacy a:hover { color: var(--gold); }
.footer-badge { color: rgba(255,255,255,.35); }
.footer-updated { color: rgba(255,255,255,.3); font-family: var(--font-mono); }

/* ═══════════════════════════════════════════════════════════
   ANIMATIONS
════════════════════════════════════════════════════════════ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}
@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

/* ═══════════════════════════════════════════════════════════
   RESPONSIVE
════════════════════════════════════════════════════════════ */
@media (max-width: 1024px) {
  .metrics-grid { grid-template-columns: repeat(2, 1fr); }
  .certs-grid   { grid-template-columns: repeat(2, 1fr); }
  .blog-grid    { grid-template-columns: repeat(2, 1fr); }
  .blog-card--featured { grid-column: 1 / -1; grid-template-columns: 1fr; }
  .contact-grid { gap: 48px; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-links {
    position: fixed; inset: 72px 0 0;
    flex-direction: column; align-items: flex-start;
    background: var(--bg); padding: 24px;
    border-top: 1px solid var(--border);
    gap: 4px; z-index: 99;
    transform: translateX(-100%);
    transition: transform .3s ease;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-link { width: 100%; padding: 14px 16px; font-size: 1rem; }
  .theme-toggle { order: -1; margin-left: auto; }

  .metrics-grid  { grid-template-columns: 1fr; }
  .stack-grid    { grid-template-columns: 1fr; }
  .certs-grid    { grid-template-columns: 1fr; }
  .blog-grid     { grid-template-columns: 1fr; }
  .blog-card--featured { display: block; }
  .contact-grid  { grid-template-columns: 1fr; gap: 40px; }
  .form-row      { grid-template-columns: 1fr; }
  .footer-inner  { grid-template-columns: 1fr; gap: 32px; }

  .hero-metrics-preview { flex-wrap: wrap; gap: 16px; }
  .preview-divider { display: none; }

  .stack-note { flex-direction: column; gap: 12px; text-align: center; }

  [data-tooltip]::after { display: none; }
}

@media (max-width: 480px) {
  .hero-ctas { flex-direction: column; }
  .hero-ctas .btn-primary,
  .hero-ctas .btn-secondary { width: 100%; justify-content: center; }
  .hero-subtitle-tags { gap: 4px; }
  .idiomas-list { flex-direction: column; align-items: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-links { grid-template-columns: 1fr; }
}