/* ============================================
   Médicos Explicam — Tech Medical Editorial
   Paleta oficial #0D47A1 #00B2A9 #1976D2 #E3F2FD
   Type stack: Sora (display) + Space Grotesk (body)
             + Orbitron (labels/eyebrows) + JetBrains Mono (mono)
   ============================================ */

:root {
  --blue:       #0D47A1;
  --blue-mid:   #1976D2;
  --blue-soft:  #E3F2FD;
  --blue-deep:  #082E66;
  --teal:       #00B2A9;
  --teal-dark:  #008C85;
  --teal-deep:  #006B66;

  --bg:        #ffffff;
  --bg-soft:   #ffffff;
  --bg-alt:    #f6f9fd;
  --ink:       #0a1330;
  --ink-2:     #2a3554;
  --ink-3:     #5c6886;
  --gray:      #8a93ad;
  --line:      #dce5f1;
  --line-soft: #ecf2f9;

  --r-xs: 6px;
  --r-sm: 10px;
  --r:    14px;
  --r-lg: 22px;
  --r-pill: 999px;

  --shadow-xs: 0 1px 2px rgba(13, 71, 161, 0.04);
  --shadow-sm: 0 2px 14px rgba(13, 71, 161, 0.06);
  --shadow:    0 6px 32px rgba(13, 71, 161, 0.08);
  --shadow-lg: 0 20px 60px rgba(13, 71, 161, 0.14);
  --glow-teal: 0 0 0 4px rgba(0, 178, 169, 0.18);
  --glow-blue: 0 0 0 4px rgba(13, 71, 161, 0.15);

  --t-fast: .18s ease;
  --t:      .28s cubic-bezier(.2, .8, .2, 1);

  --display: 'Sora', 'Space Grotesk', system-ui, sans-serif;
  --sans:    'Space Grotesk', system-ui, sans-serif;
  --mono:    'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
  --label:   'Orbitron', 'Space Grotesk', sans-serif;

  --max: 1240px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; font-family: var(--sans); color: var(--ink);
  background: var(--bg);
  line-height: 1.6; font-size: 16px;
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg, video { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--teal-dark); }
button { font-family: inherit; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; }
@media (min-width: 768px) { .container { padding: 0 2rem; } }
.container-narrow { max-width: 760px; margin: 0 auto; padding: 0 1.25rem; }
@media (min-width: 768px) { .container-narrow { padding: 0 2rem; } }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 1rem; top: 1rem; background: var(--blue); color: white; padding: .65rem 1.1rem; border-radius: var(--r-sm); z-index: 100; }

::selection { background: var(--teal); color: white; }

/* ============================================
   LABEL UTILS (Orbitron tech vibe)
   ============================================ */
.label {
  font-family: var(--label); font-weight: 600;
  font-size: .68rem; letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue);
}
.label-teal { color: var(--teal); }
.label-mono { font-family: var(--mono); font-weight: 500; letter-spacing: .04em; text-transform: none; }
.num { font-family: var(--mono); font-weight: 700; font-feature-settings: "tnum"; }

/* ============================================
   HEADER
   ============================================ */
.site-header {
  background: rgba(255, 255, 255, .92);
  border-bottom: 1px solid var(--line-soft);
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: saturate(180%) blur(12px);
}
.header-inner {
  display: grid;
  grid-template-columns: auto auto;
  align-items: center;
  gap: 1rem;
  padding-block: .85rem;
}
@media (min-width: 1024px) {
  .header-inner { grid-template-columns: auto 1fr auto; gap: 2.5rem; padding-block: 1.1rem; }
}

.logo {
  display: inline-flex; align-items: center; gap: .65rem;
  color: var(--ink); font-weight: 600;
}
.logo:hover { color: var(--blue); }
.logo-dot {
  width: 14px; height: 14px; border-radius: 4px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--teal) 100%);
  box-shadow: 0 0 0 3px var(--blue-soft);
  flex-shrink: 0; transform: rotate(45deg);
}
.logo-name {
  font-family: var(--label); font-size: 1.05rem;
  letter-spacing: .04em; font-weight: 700;
  text-transform: uppercase; color: var(--blue);
}
.logo-name em { font-style: normal; color: var(--teal); font-weight: 700; }
.logo-img { height: 38px; width: auto; display: block; }
@media (min-width: 1024px) { .logo-img { height: 46px; } }
.logo-text { display: inline-flex; align-items: center; gap: .65rem; }

/* Nav mobile drawer */
.nav-toggle {
  display: inline-flex; flex-direction: column; gap: 5px;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r-sm); padding: 10px 11px;
  cursor: pointer; transition: border-color var(--t-fast);
  justify-self: end;
}
.nav-toggle:hover { border-color: var(--blue); }
.nav-toggle span { width: 18px; height: 2px; background: var(--ink); transition: transform var(--t-fast); }
@media (min-width: 1024px) { .nav-toggle { display: none; } }

.nav {
  display: none; flex-direction: column;
  position: fixed; inset: 0 0 0 auto;
  width: 86%; max-width: 380px;
  background: var(--bg-soft); padding: 5.5rem 1.75rem 2rem;
  box-shadow: var(--shadow-lg);
  overflow-y: auto; z-index: 60;
  transform: translateX(100%); transition: transform var(--t);
}
.nav.is-open { display: flex; transform: translateX(0); }
.nav-backdrop {
  display: none; position: fixed; inset: 0;
  background: rgba(10, 19, 48, .55);
  z-index: 55; animation: fadein var(--t);
  backdrop-filter: blur(3px);
}
.nav-backdrop.is-open { display: block; }
@keyframes fadein { from { opacity: 0; } to { opacity: 1; } }

.nav a {
  color: var(--ink); font-weight: 500; font-size: .98rem;
  padding: .85rem 0; border-bottom: 1px solid var(--line-soft);
  transition: color var(--t-fast);
}
.nav a:hover { color: var(--blue); }
.nav-cta {
  margin-top: 1rem; background: var(--blue); color: white !important;
  padding: .9rem 1.2rem !important; border-radius: var(--r-pill);
  text-align: center; font-weight: 600; border: 0;
  font-family: var(--label); font-size: .78rem !important; letter-spacing: .15em; text-transform: uppercase;
}
.nav-cta:hover { background: var(--teal); color: white !important; }

@media (min-width: 1024px) {
  .nav {
    display: flex !important; position: static; inset: auto;
    flex-direction: row; align-items: center; width: auto; max-width: none;
    padding: 0; background: transparent; box-shadow: none;
    overflow: visible; transform: none; gap: 1.5rem;
  }
  .nav a { padding: 0; border: 0; font-size: .9rem; font-weight: 500; }
  .nav-cta { margin: 0; padding: .55rem 1.05rem !important; font-size: .72rem !important; }
  .nav-backdrop { display: none !important; }
}

.search {
  display: none; align-items: center;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r-pill);
  padding: .3rem .3rem .3rem 1rem; min-width: 220px;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.search:focus-within { border-color: var(--teal); box-shadow: var(--glow-teal); }
.search input {
  border: 0; outline: 0; background: transparent; font: inherit;
  flex: 1; min-width: 0; color: var(--ink); font-size: .9rem;
}
.search input::placeholder { color: var(--gray); }
.search button {
  background: var(--blue); color: white; border: 0; width: 34px; height: 34px;
  border-radius: 50%; display: grid; place-items: center; cursor: pointer;
  transition: background var(--t-fast);
}
.search button:hover { background: var(--teal); }
@media (min-width: 1024px) { .search { display: flex; } }

/* ============================================
   HERO
   ============================================ */
.hero {
  padding: 3rem 0 2.5rem; position: relative; overflow: hidden;
}
@media (min-width: 768px) { .hero { padding: 5rem 0 4.5rem; } }

.hero-grid {
  display: grid; grid-template-columns: 1fr; gap: 2.5rem; align-items: stretch;
}
@media (min-width: 1024px) { .hero-grid { grid-template-columns: 1.35fr 1fr; gap: 5rem; } }

.eyebrow-line {
  display: inline-flex; align-items: center; gap: .75rem;
  margin-bottom: 1.5rem;
}
.eyebrow-line::before {
  content: ''; width: 32px; height: 2px; background: var(--teal);
}
.eyebrow {
  font-family: var(--label); font-size: .72rem; letter-spacing: .22em;
  text-transform: uppercase; color: var(--blue); font-weight: 700;
}
.eyebrow .num { color: var(--teal); }

.hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.4rem, 7vw, 4.8rem); line-height: .98;
  letter-spacing: -.035em; margin: 0 0 1.25rem; color: var(--ink);
}
.hero h1 em {
  font-style: normal; font-weight: 700; color: var(--teal);
  display: inline-block; position: relative;
}
.hero h1 em::after {
  content: '.'; color: var(--blue); margin-left: -.05em;
}
.lead {
  font-size: 1.08rem; color: var(--ink-2); margin: 0 0 1.75rem; max-width: 580px;
  line-height: 1.6;
}
@media (min-width: 768px) { .lead { font-size: 1.18rem; } }

.hero-cta { display: flex; gap: .75rem; flex-wrap: wrap; align-items: center; }
.hero-meta {
  margin-top: 2rem; padding-top: 1.5rem; border-top: 1px solid var(--line);
  display: flex; gap: 2rem; flex-wrap: wrap;
}
.hero-meta-item .num {
  display: block; font-size: 1.65rem; color: var(--blue); line-height: 1;
}
.hero-meta-item .label {
  display: block; margin-top: .35rem; font-size: .65rem;
}

.btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .9rem 1.55rem; border-radius: var(--r-pill);
  font-family: var(--label); font-weight: 600; font-size: .78rem;
  letter-spacing: .14em; text-transform: uppercase;
  cursor: pointer; border: 0; transition: all var(--t);
  min-height: 48px; line-height: 1; text-decoration: none;
}
.btn-primary { background: var(--blue); color: white; }
.btn-primary:hover { background: var(--teal); color: white; box-shadow: 0 8px 30px rgba(0, 178, 169, .35); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-ghost:hover { background: var(--bg-soft); border-color: var(--blue); color: var(--blue); }
.btn-teal { background: var(--teal); color: white; }
.btn-teal:hover { background: var(--teal-dark); color: white; box-shadow: 0 8px 30px rgba(0, 178, 169, .35); transform: translateY(-1px); }

/* Hero visual card */
.hero-card {
  position: relative; align-self: stretch;
  background: var(--bg-soft);
  border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 2rem; overflow: hidden;
  box-shadow: var(--shadow);
}
@media (min-width: 768px) { .hero-card { padding: 2.5rem; } }
.hero-card::before {
  content: ''; position: absolute; top: -80px; right: -80px;
  width: 240px; height: 240px;
  background: radial-gradient(circle, var(--teal) 0%, transparent 70%);
  opacity: .14;
}
.hero-card::after {
  content: ''; position: absolute; bottom: -100px; left: -60px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--blue) 0%, transparent 70%);
  opacity: .1;
}
.hero-card-inner { position: relative; z-index: 1; height: 100%; display: flex; flex-direction: column; }
.hero-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.25rem;
}
.hero-card-id {
  font-family: var(--mono); font-size: .78rem; color: var(--gray);
  letter-spacing: .05em;
}
.pulse { display: inline-flex; gap: 4px; align-items: center; }
.pulse span {
  width: 7px; height: 7px; border-radius: 50%; background: var(--teal);
  animation: pulse 1.6s ease-in-out infinite;
}
.pulse span:nth-child(2) { animation-delay: .2s; }
.pulse span:nth-child(3) { animation-delay: .4s; }
@keyframes pulse { 0%, 100% { opacity: .3; transform: scale(.7); } 50% { opacity: 1; transform: scale(1.15); } }
.hero-card-q {
  font-family: var(--display); font-weight: 700; font-size: 1.6rem;
  color: var(--ink); margin: .75rem 0; line-height: 1.1; letter-spacing: -.02em;
}
@media (min-width: 768px) { .hero-card-q { font-size: 1.85rem; } }
.hero-card-a { color: var(--ink-2); margin: 0 0 1.5rem; font-size: 1rem; line-height: 1.55; }
.hero-card-foot {
  margin-top: auto; padding-top: 1.25rem; border-top: 1px dashed var(--line);
  font-family: var(--mono); font-size: .78rem; color: var(--blue);
  display: flex; justify-content: space-between; align-items: center;
}

/* ECG decorative line */
.ecg-line { display: block; margin: 1.25rem 0; opacity: .55; }
.ecg-line svg { width: 100%; height: 32px; }

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 4rem 0; position: relative; }
@media (min-width: 768px) { .section { padding: 6rem 0; } }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--blue-deep); color: white; }
.section-dark .section-title { color: white; }
.section-dark .section-deck { color: rgba(255,255,255,.72); }

.section-head {
  margin-bottom: 3rem; max-width: 720px;
}
.section-head .eyebrow-line { margin-bottom: 1.25rem; }
.section-title {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.85rem, 4vw, 2.85rem);
  letter-spacing: -.025em; margin: 0 0 .75rem; color: var(--ink);
  line-height: 1.05;
}
.section-deck { color: var(--ink-3); font-size: 1.05rem; margin: 0; max-width: 580px; }
.section-head-row {
  display: flex; gap: 2rem; justify-content: space-between; align-items: flex-end;
  margin-bottom: 3rem; flex-wrap: wrap;
}
.section-head-row .section-head { margin-bottom: 0; }

/* Featured editorial card */
.featured-card {
  display: grid; grid-template-columns: 1fr; gap: 0;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r-lg); overflow: hidden;
  transition: border-color var(--t), box-shadow var(--t), transform var(--t);
  color: var(--ink);
}
@media (min-width: 900px) { .featured-card { grid-template-columns: 1.1fr 1fr; } }
.featured-card:hover { border-color: var(--blue); box-shadow: var(--shadow-lg); transform: translateY(-3px); color: var(--ink); }
.featured-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: var(--ink); }
@media (min-width: 900px) { .featured-thumb { aspect-ratio: auto; height: 100%; min-height: 380px; } }
.featured-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--t); }
.featured-card:hover .featured-thumb img { transform: scale(1.04); }
.play {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: linear-gradient(0deg, rgba(8, 46, 102, .55) 0%, rgba(8, 46, 102, .15) 100%);
  transition: background var(--t);
}
.play-icon {
  width: 64px; height: 64px; border-radius: 50%;
  background: white; display: grid; place-items: center;
  box-shadow: 0 12px 40px rgba(8, 46, 102, .4);
  transition: transform var(--t);
}
.featured-card:hover .play-icon { transform: scale(1.08); }
.play-icon svg { fill: var(--blue); margin-left: 4px; }
.featured-body { padding: 2rem; display: flex; flex-direction: column; gap: 1rem; }
@media (min-width: 768px) { .featured-body { padding: 2.5rem; } }
.featured-body h3 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(1.5rem, 2.5vw, 2.1rem); line-height: 1.1;
  margin: 0; letter-spacing: -.02em; color: var(--ink);
}
.featured-body p { color: var(--ink-3); margin: 0; font-size: 1.02rem; }
.featured-meta {
  display: flex; align-items: center; gap: 1rem; font-family: var(--mono);
  font-size: .75rem; color: var(--gray); margin-top: auto;
}
.featured-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: var(--gray); }
.read-more {
  font-family: var(--label); font-weight: 600; font-size: .72rem; letter-spacing: .18em;
  text-transform: uppercase; color: var(--blue);
  display: inline-flex; align-items: center; gap: .5rem;
  transition: gap var(--t-fast), color var(--t-fast);
}
.read-more::after {
  content: '→'; font-family: var(--sans); font-size: 1.1rem;
}
.read-more:hover { gap: .8rem; color: var(--teal); }

/* Cards grid editorial */
.cards { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
@media (min-width: 640px) { .cards { grid-template-columns: repeat(2, 1fr); gap: 1.75rem; } }
@media (min-width: 1024px) { .cards { grid-template-columns: repeat(3, 1fr); } }
.cards.small { grid-template-columns: 1fr; gap: 1.25rem; }
@media (min-width: 640px) { .cards.small { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  color: var(--ink); position: relative;
}
.card:hover {
  transform: translateY(-5px); box-shadow: var(--shadow);
  border-color: var(--blue); color: var(--ink);
}
.card-thumb {
  aspect-ratio: 16/9; overflow: hidden;
  background: var(--bg-alt); position: relative;
}
.card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--t); }
.card:hover .card-thumb img { transform: scale(1.06); }
.card-thumb::after {
  content: ''; position: absolute; inset: auto 0 0 0; height: 50%;
  background: linear-gradient(0deg, rgba(8, 46, 102, .15) 0%, transparent 100%);
  pointer-events: none;
}
.card-body { padding: 1.5rem 1.5rem 1.65rem; flex: 1; display: flex; flex-direction: column; gap: .65rem; }
.card-body h3 {
  font-family: var(--display); font-weight: 600;
  font-size: 1.15rem; margin: 0; line-height: 1.25;
  letter-spacing: -.012em; color: var(--ink);
}
.card-body p { margin: 0; color: var(--ink-3); font-size: .92rem; flex: 1; line-height: 1.5; }
.card-meta {
  display: flex; align-items: center; gap: .65rem;
  font-family: var(--mono); font-size: .72rem; color: var(--gray);
  margin-top: .35rem; padding-top: .75rem; border-top: 1px dashed var(--line-soft);
}
.card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray); }

.cat-tag {
  display: inline-block; font-family: var(--label); font-size: .65rem;
  font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
  color: var(--cat-color, var(--blue));
  padding: .35rem .75rem; border-radius: var(--r-pill);
  background: color-mix(in srgb, var(--cat-color, var(--blue)) 12%, transparent);
  width: fit-content;
}

/* Cats grid */
.cats { display: grid; grid-template-columns: 1fr; gap: 1rem; }
@media (min-width: 640px) { .cats { grid-template-columns: repeat(2, 1fr); gap: 1.25rem; } }
@media (min-width: 1024px) { .cats { grid-template-columns: repeat(4, 1fr); } }
.cat-card {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); padding: 1.75rem 1.5rem 1.5rem;
  display: flex; flex-direction: column; gap: .5rem;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  color: var(--ink); position: relative; overflow: hidden;
}
.cat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
  background: linear-gradient(90deg, var(--cat-color, var(--blue)) 0%, transparent 100%);
}
.cat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--cat-color, var(--blue)); color: var(--ink); }
.cat-card h3 { font-family: var(--display); margin: 0; font-size: 1.3rem; font-weight: 700; color: var(--ink); letter-spacing: -.015em; }
.cat-card p { color: var(--ink-3); margin: 0; font-size: .95rem; line-height: 1.5; }
.cat-count {
  font-family: var(--mono); font-size: .82rem; font-weight: 600;
  color: var(--cat-color, var(--blue)); margin-top: auto; padding-top: 1rem;
  display: flex; align-items: center; gap: .35rem;
}
.cat-count::after {
  content: '→'; font-family: var(--sans); font-size: 1rem;
  transition: transform var(--t-fast);
}
.cat-card:hover .cat-count::after { transform: translateX(4px); }

/* CTA banner full-bleed */
.suggest-band {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  padding: 4rem 0; color: white; position: relative; overflow: hidden;
}
@media (min-width: 768px) { .suggest-band { padding: 6rem 0; } }
.suggest-band::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(500px 320px at 15% 30%, rgba(0, 178, 169, .25), transparent),
    radial-gradient(400px 280px at 85% 70%, rgba(25, 118, 210, .35), transparent);
}
.suggest-band .container { position: relative; }
.suggest-band-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
  align-items: center; max-width: 920px; margin: 0 auto;
}
@media (min-width: 768px) { .suggest-band-grid { grid-template-columns: 1.4fr 1fr; gap: 3rem; } }
.suggest-band .eyebrow { color: var(--blue-soft); }
.suggest-band .eyebrow-line::before { background: var(--teal); }
.suggest-band h2 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin: 0 0 .75rem; letter-spacing: -.025em; line-height: 1.05;
}
.suggest-band h2 em { color: var(--teal); font-style: normal; }
.suggest-band-deck { color: rgba(255, 255, 255, .8); margin: 0 0 2rem; font-size: 1.05rem; max-width: 480px; }
.suggest-band .btn-primary { background: var(--teal); color: white; }
.suggest-band .btn-primary:hover { background: white; color: var(--blue); }
.suggest-band-side {
  background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--r); padding: 1.75rem; backdrop-filter: blur(10px);
}
.suggest-band-side .num { display: block; font-size: 2.2rem; color: var(--teal); margin-bottom: .5rem; line-height: 1; }
.suggest-band-side p { margin: 0; font-size: .92rem; color: rgba(255,255,255,.75); line-height: 1.55; }

/* ============================================
   ARTICLE READER
   ============================================ */
.read-progress {
  position: fixed; top: 0; left: 0; height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--blue));
  width: 0%; z-index: 100; transition: width .1s linear;
}
.article { padding: 2rem 0 4rem; }
@media (min-width: 768px) { .article { padding: 3rem 0 6rem; } }
.breadcrumb { color: var(--gray); font-size: .8rem; margin-bottom: 1.5rem; font-family: var(--mono); }
.breadcrumb a { color: var(--gray); }
.breadcrumb a:hover { color: var(--blue); }
.breadcrumb span[aria-hidden] { margin: 0 .4rem; opacity: .5; }

.article-head { margin-bottom: 2.5rem; }
.article-head h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.4rem); line-height: 1.05;
  letter-spacing: -.025em; margin: 1.25rem 0 1.25rem; color: var(--ink);
}
.article-deck { font-size: 1.2rem; color: var(--ink-2); margin: 0 0 1.75rem; line-height: 1.55; }
.article-meta {
  color: var(--gray); font-family: var(--mono); font-size: .78rem;
  display: flex; gap: .65rem; align-items: center; flex-wrap: wrap;
  padding-top: 1.25rem; border-top: 1px solid var(--line);
}
.article-meta time { color: var(--blue); font-weight: 600; }
.article-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray); }

.video-wrap {
  position: relative; aspect-ratio: 16/9;
  border-radius: var(--r); overflow: hidden;
  margin-bottom: 2.5rem; box-shadow: var(--shadow);
  background: var(--ink);
}
.video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.article-body { font-size: 1.08rem; line-height: 1.75; color: var(--ink-2); }
@media (min-width: 768px) { .article-body { font-size: 1.13rem; line-height: 1.78; } }
.article-body > p:first-of-type::first-letter {
  font-family: var(--display); font-weight: 700;
  font-size: 3.2em; float: left; line-height: .9;
  padding: .1em .12em 0 0; color: var(--blue);
}
.article-body h2 {
  font-family: var(--display); color: var(--ink); font-weight: 700;
  font-size: 1.7rem; margin: 2.75rem 0 1rem; letter-spacing: -.015em;
  line-height: 1.15;
}
.article-body h3 {
  font-family: var(--display); color: var(--ink); font-weight: 600;
  font-size: 1.3rem; margin: 1.85rem 0 .75rem; letter-spacing: -.005em;
}
.article-body p { margin: 0 0 1.3rem; color: var(--ink-2); }
.article-body a {
  color: var(--blue); text-decoration: underline; text-underline-offset: 3px;
  text-decoration-thickness: 1px; text-decoration-color: var(--teal);
}
.article-body a:hover { color: var(--teal); }
.article-body strong { color: var(--ink); font-weight: 700; }
.article-body ul, .article-body ol { padding-left: 1.4rem; margin: 0 0 1.3rem; }
.article-body li { margin-bottom: .55rem; }
.article-body blockquote {
  border-left: 3px solid var(--teal); padding: .5rem 0 .5rem 1.5rem;
  margin: 1.75rem 0; font-family: var(--display); font-weight: 500;
  font-size: 1.3rem; color: var(--ink); line-height: 1.35;
  letter-spacing: -.01em;
}
.article-body .callout {
  background: var(--blue-soft); border-radius: var(--r);
  padding: 1.25rem 1.5rem; margin: 1.75rem 0;
  border-left: 3px solid var(--blue);
}
.article-body .callout strong { color: var(--blue); }
.article-body .callout p:last-child { margin-bottom: 0; }

/* FAQ */
.faq { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--line); }
.faq-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 2rem; flex-wrap: wrap; gap: 1rem; }
.faq h2 {
  font-family: var(--display); font-weight: 700; font-size: 1.85rem;
  margin: 0; letter-spacing: -.02em; color: var(--ink);
}
.faq details {
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--r); padding: 1.35rem 1.5rem;
  margin-bottom: .65rem; transition: border-color var(--t), box-shadow var(--t);
}
.faq details[open] { border-color: var(--teal); box-shadow: var(--shadow-sm); }
.faq summary {
  font-weight: 600; cursor: pointer; list-style: none; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  font-size: 1.02rem; line-height: 1.4;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: '+'; font-family: var(--label); font-size: 1.5rem; color: var(--teal);
  font-weight: 300; line-height: 1; flex-shrink: 0;
  transition: transform var(--t-fast);
}
.faq details[open] summary::after { content: '−'; }
.faq p { margin: 1rem 0 0; color: var(--ink-3); line-height: 1.65; }

/* CTA canal */
.cta-canal {
  margin: 3.5rem 0; padding: 2.25rem;
  border-radius: var(--r-lg); position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-deep) 100%);
  color: white;
  display: flex; gap: 1.5rem; align-items: center;
  justify-content: space-between; flex-wrap: wrap;
}
.cta-canal::before {
  content: ''; position: absolute; top: -50px; right: -50px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, var(--teal) 0%, transparent 70%);
  opacity: .25;
}
.cta-canal > * { position: relative; }
.cta-canal h3 { font-family: var(--display); font-weight: 700; margin: 0 0 .35rem; font-size: 1.4rem; letter-spacing: -.01em; }
.cta-canal p { margin: 0; color: rgba(255,255,255,.75); }
.cta-canal .btn-primary { background: var(--teal); }
.cta-canal .btn-primary:hover { background: white; color: var(--blue); }

.related { margin-top: 4rem; padding-top: 3rem; border-top: 1px solid var(--line); }
.related h2 {
  font-family: var(--display); font-weight: 700;
  font-size: 1.65rem; margin: 0 0 1.5rem; letter-spacing: -.015em;
}

/* Cat hero */
.cat-hero {
  padding: 3.5rem 0 2.5rem; position: relative; overflow: hidden;
  background: var(--bg-soft); border-bottom: 1px solid var(--line);
}
@media (min-width: 768px) { .cat-hero { padding: 5rem 0 3.5rem; } }
.cat-hero::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 5px;
  background: var(--cat-color, var(--blue));
}
.cat-hero h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  margin: .75rem 0; letter-spacing: -.025em; color: var(--ink);
}
.cat-hero .meta { color: var(--gray); font-family: var(--mono); font-size: .82rem; margin-top: 1rem; }

/* Pages narrow */
.page-narrow { padding: 3rem 0 5rem; }
@media (min-width: 768px) { .page-narrow { padding: 4rem 0 6rem; } }
.page-narrow .container { max-width: 760px; }
.page-head h1 {
  font-family: var(--display); font-weight: 700;
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  margin: 1rem 0; letter-spacing: -.025em; color: var(--ink);
}
.prose { font-size: 1.05rem; color: var(--ink-2); line-height: 1.72; }
@media (min-width: 768px) { .prose { font-size: 1.1rem; } }
.prose h2 { font-family: var(--display); color: var(--ink); font-size: 1.55rem; margin: 2.25rem 0 .75rem; font-weight: 700; letter-spacing: -.015em; }
.prose p { margin: 0 0 1.1rem; }
.prose strong { color: var(--ink); font-weight: 700; }
.prose .callout {
  background: var(--blue-soft); border-radius: var(--r);
  padding: 1.25rem 1.5rem; margin: 1.5rem 0;
  border-left: 3px solid var(--teal);
}

/* ============================================
   FORMS
   ============================================ */
.form { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 2rem; }
.field { display: flex; flex-direction: column; gap: .4rem; }
.field span {
  font-family: var(--label); font-weight: 600; font-size: .7rem;
  letter-spacing: .16em; text-transform: uppercase; color: var(--blue);
}
.field input, .field textarea {
  border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: .9rem 1rem; font: inherit; background: var(--bg-soft);
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  font-family: var(--sans); color: var(--ink);
  min-height: 48px;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus {
  outline: 0; border-color: var(--teal); box-shadow: var(--glow-teal);
}
.field.hp { position: absolute; left: -9999px; height: 0; overflow: hidden; }
.form-foot { font-size: .85rem; color: var(--gray); margin: 0; }

.search-form { display: flex; gap: .75rem; margin: 1.5rem 0; flex-wrap: wrap; }
.search-form input {
  flex: 1; min-width: 240px; padding: .95rem 1.2rem;
  border: 1px solid var(--line); border-radius: var(--r-pill);
  font: inherit; background: var(--bg-soft); min-height: 48px;
}
.search-form input:focus { outline: 0; border-color: var(--teal); box-shadow: var(--glow-teal); }

.notice { padding: 1rem 1.25rem; border-radius: var(--r); margin: 1rem 0; font-size: .95rem; }
.notice-ok { background: color-mix(in srgb, var(--teal) 14%, var(--bg-soft)); border-left: 3px solid var(--teal); color: var(--ink); }
.notice-err { background: #fee2e2; border-left: 3px solid #dc2626; color: #7f1d1d; }
.empty { color: var(--gray); font-style: italic; margin: 2rem 0; }

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: var(--ink); color: rgba(255, 255, 255, .65);
  padding: 4rem 0 2rem; margin-top: 5rem; position: relative; overflow: hidden;
}
.site-footer::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--teal) 50%, transparent 100%);
}
.footer-inner {
  display: grid; grid-template-columns: 1fr; gap: 2.5rem;
}
@media (min-width: 700px) { .footer-inner { grid-template-columns: 1.6fr 1fr 1fr; gap: 3rem; } }
.foot-brand strong {
  font-family: var(--display); font-size: 1.5rem; font-weight: 700;
  color: white; display: block; margin-bottom: .5rem; letter-spacing: -.015em;
}
.foot-slogan {
  font-family: var(--display); color: var(--teal) !important;
  font-size: 1rem; font-weight: 500; margin: 0 0 1rem !important;
}
.foot-brand p { margin: 0 0 1.5rem; max-width: 360px; line-height: 1.6; }
.yt-link {
  display: inline-flex; gap: .55rem; align-items: center; color: white;
  background: var(--teal); padding: .8rem 1.3rem;
  border-radius: var(--r-pill);
  font-family: var(--label); font-weight: 600; font-size: .72rem;
  letter-spacing: .16em; text-transform: uppercase;
  transition: background var(--t-fast), transform var(--t-fast);
}
.yt-link:hover { background: white; color: var(--blue); transform: translateY(-1px); }
.foot-nav { display: flex; flex-direction: column; gap: .55rem; }
.foot-nav h4 {
  font-family: var(--label); color: white;
  margin: 0 0 .85rem; font-weight: 600; font-size: .7rem;
  letter-spacing: .2em; text-transform: uppercase;
}
.foot-nav a { color: rgba(255, 255, 255, .55); font-size: .92rem; }
.foot-nav a:hover { color: var(--teal); }
.foot-legal {
  grid-column: 1 / -1; padding-top: 2rem; margin-top: 1rem;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex; gap: 1rem; justify-content: space-between;
  align-items: center; flex-wrap: wrap;
}
.foot-legal p {
  margin: 0; font-size: .78rem; font-family: var(--mono);
  color: rgba(255, 255, 255, .4); max-width: 620px; line-height: 1.6;
}
.ne-credit {
  display: inline-flex; gap: .5rem; align-items: center;
  color: rgba(255, 255, 255, .45); font-size: .75rem; font-family: var(--mono);
}
.ne-credit img { height: 14px; filter: brightness(0) invert(1); opacity: .8; }
.ne-credit:hover { color: white; }

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