/* ==========================================================================
   IMPERO V2 — style.css
   Estética: Luxo discreto · Masculinidade moderna · Autoridade
   Paleta: Branco #FFFFFF · Preto #060606 · Dourado #B8941F / #C9A84C
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. RESET & CUSTOM PROPERTIES
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Cores principais */
  --c-white:       #FFFFFF;
  --c-off-white:   #F8F7F3;
  --c-cream:       #F2EFE8;
  --c-black:       #060606;
  --c-dark:        #0D0D0D;
  --c-dark-2:      #141414;
  --c-dark-3:      #1C1C1C;

  /* Dourado — hierarquia */
  --c-gold:        #C9A84C;
  --c-gold-bright: #DDB95A;
  --c-gold-deep:   #9E7B2A;
  --c-gold-muted:  rgba(201,168,76,0.18);
  --c-gold-faint:  rgba(201,168,76,0.06);

  /* Texto */
  --c-text-primary:   #060606;
  --c-text-secondary: #5A5A5A;
  --c-text-muted:     #9A9A9A;
  --c-text-inverted:  #FFFFFF;
  --c-text-dim:       rgba(255,255,255,0.5);

  /* Tipografia */
  --font-display: 'Cormorant Garamond', 'Georgia', serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  /* Escala tipográfica */
  --text-xs:   0.68rem;
  --text-sm:   0.82rem;
  --text-base: 1rem;
  --text-lg:   1.125rem;
  --text-xl:   1.375rem;
  --text-2xl:  1.75rem;
  --text-3xl:  2.25rem;
  --text-4xl:  3rem;
  --text-5xl:  4rem;
  --text-6xl:  5.5rem;

  /* Espaçamento */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;
  --sp-40: 10rem;

  /* Layout */
  --container-max:  1160px;
  --container-pad:  clamp(1.25rem, 5vw, 2.5rem);

  /* Header */
  --topbar-h:  38px;
  --header-h:  76px;
  --total-nav: calc(var(--topbar-h) + var(--header-h));

  /* Transições */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);
  --t-fast:  180ms;
  --t-base:  320ms;
  --t-slow:  560ms;

  /* Bordas */
  --radius-sm: 2px;
  --radius-md: 4px;
  --border-gold-faint: 1px solid rgba(201,168,76,0.15);
  --border-gold:       1px solid rgba(201,168,76,0.4);
  --border-white-faint:1px solid rgba(255,255,255,0.08);
}

/* --------------------------------------------------------------------------
   2. BASE
   -------------------------------------------------------------------------- */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.75;
  color: var(--c-text-primary);
  background: var(--c-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

/* --------------------------------------------------------------------------
   3. LAYOUT
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* Seção genérica */
.section { padding-block: var(--sp-32); }
.section--white { background: var(--c-white); }
.section--dark  { background: var(--c-dark); }

/* --------------------------------------------------------------------------
   4. UTILITÁRIOS
   -------------------------------------------------------------------------- */
.text--gold  { color: var(--c-gold); }
.text--white { color: var(--c-white); }

/* Eyebrow (divisor decorativo com texto centrado) */
.section__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  justify-content: center;
  margin-bottom: var(--sp-6);
}
.section__eyebrow--gold .eyebrow-text { color: var(--c-gold); }

.eyebrow-line {
  flex: 1;
  max-width: 80px;
  height: 1px;
  background: currentColor;
  opacity: 0.2;
}
.eyebrow-line--gold { background: var(--c-gold); opacity: 0.5; }

.eyebrow-text {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-text-secondary);
  white-space: nowrap;
}
.eyebrow-text--gold { color: var(--c-gold); }

/* Títulos de seção */
.section__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 700;
  line-height: 1.1;
  color: var(--c-black);
  text-align: center;
  margin-bottom: var(--sp-4);
  letter-spacing: -0.01em;
}
.section__title--light { color: var(--c-white); }

.section__subtitle {
  font-size: var(--text-base);
  color: var(--c-text-dim);
  text-align: center;
  max-width: 520px;
  margin-inline: auto;
  margin-bottom: var(--sp-16);
}
.section__subtitle--muted { color: var(--c-text-secondary); }

.section__footer { text-align: center; margin-top: var(--sp-16); }

/* --------------------------------------------------------------------------
   5. BOTÕES
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 0.8rem 2rem;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition:
    background var(--t-base) var(--ease-out),
    color var(--t-base) var(--ease-out),
    border-color var(--t-base) var(--ease-out),
    box-shadow var(--t-base) var(--ease-out),
    transform var(--t-fast);
  white-space: nowrap;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0;
  transition: opacity var(--t-fast);
}
.btn:hover::after  { opacity: 1; }
.btn:active { transform: scale(0.975); }

/* Dourado sólido */
.btn--gold {
  background: var(--c-gold);
  color: var(--c-black);
  border: 1.5px solid var(--c-gold);
}
.btn--gold:hover {
  background: var(--c-gold-bright);
  border-color: var(--c-gold-bright);
  box-shadow: 0 0 0 3px var(--c-gold-muted), 0 8px 32px rgba(201,168,76,0.25);
}

/* Contorno dourado */
.btn--gold-outline {
  background: transparent;
  color: var(--c-gold);
  border: 1.5px solid var(--c-gold);
}
.btn--gold-outline:hover {
  background: var(--c-gold);
  color: var(--c-black);
}

/* Fantasma / outline branco */
.btn--ghost {
  background: transparent;
  color: rgba(255,255,255,0.7);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn--ghost:hover {
  color: var(--c-white);
  border-color: rgba(255,255,255,0.5);
}

/* Escuro */
.btn--dark {
  background: var(--c-black);
  color: var(--c-white);
  border: 1.5px solid var(--c-black);
}
.btn--dark:hover {
  box-shadow: 0 6px 24px rgba(0,0,0,0.2);
}

/* Tamanhos */
.btn--sm { padding: 0.55rem 1.35rem; }
.btn--lg { padding: 1rem 2.75rem; font-size: 0.78rem; letter-spacing: 0.14em; }

/* --------------------------------------------------------------------------
   6. ÍCONES SOCIAIS
   -------------------------------------------------------------------------- */
.social-icon {
  width: 17px;
  height: 17px;
  flex-shrink: 0;
  transition: transform var(--t-fast), color var(--t-fast);
}

/* Topbar / nav mobile socials */
.social-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: rgba(255,255,255,0.55);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  transition: color var(--t-fast);
}
.social-link:hover { color: var(--c-gold); }
.social-link:hover .social-icon { transform: scale(1.12); }

.social-link__label {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Footer socials — círculos */
.social-link--footer {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(201,168,76,0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.5);
  transition: border-color var(--t-base), color var(--t-base), background var(--t-base);
  gap: 0;
}
.social-link--footer:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
  background: var(--c-gold-faint);
}
.social-link--footer .social-icon { width: 15px; height: 15px; }

/* --------------------------------------------------------------------------
   7. TOPBAR
   -------------------------------------------------------------------------- */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--topbar-h);
  background: var(--c-black);
  border-bottom: 1px solid rgba(201,168,76,0.1);
  display: flex;
  align-items: center;
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar__tagline {
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
}

.topbar__socials {
  display: flex;
  align-items: center;
  gap: var(--sp-6);
}

/* Oculta label no topbar, mostra só ícone */
.topbar__socials .social-link__label { display: none; }

/* --------------------------------------------------------------------------
   8. HEADER
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: var(--topbar-h);
  left: 0;
  right: 0;
  z-index: 900;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
  border-bottom: 1px solid transparent;
}

.header--scrolled {
  background: rgba(6,6,6,0.95);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: rgba(201,168,76,0.12);
  box-shadow: 0 4px 40px rgba(0,0,0,0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-8);
}

/* Logo */
.header__logo-img {
  height: 56px;
  width: auto;
  filter: brightness(0) invert(1);
  transition: opacity var(--t-fast);
}
.header__logo:hover .header__logo-img { opacity: 0.75; }

/* Nav desktop */
.header__nav {
  display: flex;
  align-items: center;
  gap: var(--sp-10);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
}

.nav__link {
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  position: relative;
  padding-bottom: 3px;
  transition: color var(--t-fast);
}
.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-gold);
  transition: width var(--t-base) var(--ease-out);
}
.nav__link:hover,
.nav__link.active { color: var(--c-white); }
.nav__link:hover::after,
.nav__link.active::after { width: 100%; }

/* Socials no header (ocultos no desktop — aparecem só no mobile) */
.nav__socials {
  display: none;
  align-items: center;
  gap: var(--sp-4);
  margin-top: var(--sp-8);
}

/* Hamburguer */
.header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  padding: 2px;
}
.header__burger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--c-white);
  border-radius: 1px;
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-fast);
  transform-origin: center;
}
.header__burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.header__burger.is-open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.header__burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   9. HERO
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--c-black);
  overflow: hidden;
  padding-top: var(--total-nav);
}

/* Fundo com textura e brilho */
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.hero__bg-grain {
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.035'/%3E%3C/svg%3E");
  background-size: 200px;
  opacity: 0.45;
}

.hero__bg-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 55% at 15% 50%, rgba(201,168,76,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 40% 60% at 85% 20%, rgba(201,168,76,0.04) 0%, transparent 60%),
    linear-gradient(160deg, #0A0907 0%, #060606 40%, #080806 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: var(--sp-20) var(--sp-32);
  max-width: 860px;
}

/* Linha divisória Est. */
.hero__overline {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-10);
  animation: fadeUp 0.9s var(--ease-out) both;
}
.hero__overline-line {
  flex: 1;
  max-width: 48px;
  height: 1px;
  background: var(--c-gold);
  opacity: 0.45;
}
.hero__overline-text {
  font-size: var(--text-xs);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--c-gold);
  font-weight: 500;
}

/* Título principal */
.hero__title {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-bottom: var(--sp-8);
  animation: fadeUp 0.9s 0.1s var(--ease-out) both;
}

.hero__title-row {
  font-family: var(--font-display);
  line-height: 1.05;
  display: block;
}
.hero__title-row--light {
  font-size: clamp(2.8rem, 7.5vw, 5.8rem);
  font-weight: 300;
  color: var(--c-white);
  letter-spacing: -0.02em;
}
.hero__title-row--gold {
  font-size: clamp(3.5rem, 9.5vw, 7.5rem);
  font-weight: 700;
  color: var(--c-gold);
  letter-spacing: -0.03em;
  font-style: italic;
}

.hero__subtitle {
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,0.45);
  line-height: 1.8;
  max-width: 500px;
  margin-bottom: var(--sp-10);
  animation: fadeUp 0.9s 0.2s var(--ease-out) both;
}
.hero__subtitle-break { display: none; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-16);
  animation: fadeUp 0.9s 0.3s var(--ease-out) both;
}

/* Stats */
.hero__stats {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  animation: fadeUp 0.9s 0.4s var(--ease-out) both;
}
.hero__stat-divider {
  width: 1px;
  height: 32px;
  background: rgba(255,255,255,0.12);
}
.hero__stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--c-gold);
  line-height: 1;
  margin-bottom: 2px;
}
.hero__stat-label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}

/* Indicador scroll */
.hero__scroll {
  position: absolute;
  bottom: var(--sp-10);
  right: var(--sp-10);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  z-index: 1;
  opacity: 0;
  animation: fadeIn 1s 1.2s var(--ease-out) forwards;
}
.hero__scroll-label {
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  writing-mode: vertical-rl;
}
.hero__scroll-line {
  width: 1px;
  height: 56px;
  background: linear-gradient(to bottom, var(--c-gold), transparent);
  animation: scrollPulse 2.5s ease-in-out infinite 1.5s;
}

/* --------------------------------------------------------------------------
   10. SOBRE / ABOUT
   -------------------------------------------------------------------------- */
.about__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  margin-bottom: var(--sp-24);
}

@media (min-width: 900px) {
  .about__layout {
    grid-template-columns: 420px 1fr;
    gap: var(--sp-24);
    align-items: start;
  }
  .hero__subtitle-break { display: block; }
}

.about__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  color: var(--c-black);
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-6);
}
.about__title em {
  font-style: italic;
  color: var(--c-gold-deep);
}

.about__accent-bar {
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
}

.about__lead {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 400;
  line-height: 1.55;
  color: var(--c-black);
  margin-bottom: var(--sp-6);
}

.about__body p + p {
  margin-top: var(--sp-4);
  color: var(--c-text-secondary);
  font-size: 0.95rem;
}

/* Pilares */
.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 1px;
  background: var(--c-cream);
  border: 1px solid var(--c-cream);
}

.pillar {
  background: var(--c-white);
  padding: var(--sp-10) var(--sp-8);
  position: relative;
  overflow: hidden;
  transition: background var(--t-base);
}

.pillar::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow) var(--ease-out);
}
.pillar:hover::before { transform: scaleX(1); }
.pillar:hover { background: var(--c-off-white); }

.pillar__number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: var(--c-cream);
  line-height: 1;
  position: absolute;
  top: var(--sp-4);
  right: var(--sp-6);
  user-select: none;
  transition: color var(--t-base);
}
.pillar:hover .pillar__number { color: var(--c-gold-muted); }

.pillar__icon {
  font-size: 1.6rem;
  color: var(--c-gold);
  display: block;
  margin-bottom: var(--sp-4);
  line-height: 1;
}

.pillar__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--c-black);
  margin-bottom: var(--sp-3);
  letter-spacing: -0.01em;
}

.pillar__text {
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  line-height: 1.7;
  position: relative;
  z-index: 1;
}

/* --------------------------------------------------------------------------
   11. ARTIGOS / CARDS
   -------------------------------------------------------------------------- */
.articles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1px;
  background: rgba(255,255,255,0.04);
}

.card {
  background: var(--c-dark-2);
  padding: var(--sp-8) var(--sp-8) var(--sp-6);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  position: relative;
  overflow: hidden;
  transition: background var(--t-base);
}

/* Linha dourada esquerda no hover */
.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 2px;
  height: 0;
  background: linear-gradient(to bottom, var(--c-gold), transparent);
  transition: height var(--t-slow) var(--ease-out);
}
.card:hover::before { height: 100%; }
.card:hover { background: var(--c-dark-3); }

.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.card__date {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.05em;
}

.card__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.card__excerpt {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.4);
  line-height: 1.7;
  flex: 1;
}

.card__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  padding-top: var(--sp-4);
  border-top: 1px solid rgba(255,255,255,0.06);
  transition: color var(--t-fast), gap var(--t-fast);
  margin-top: auto;
}
.card__cta:hover { color: var(--c-gold); gap: var(--sp-4); }
.card__cta svg { transition: transform var(--t-fast); }
.card__cta:hover svg { transform: translateX(3px); }

/* --------------------------------------------------------------------------
   12. LIVROS
   -------------------------------------------------------------------------- */
.books__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 255px), 1fr));
  gap: var(--sp-6);
}

.book-card {
  display: flex;
  flex-direction: column;
  background: var(--c-white);
  border: 1px solid var(--c-cream);
  transition: box-shadow var(--t-base), transform var(--t-base);
}
.book-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.1), 0 0 0 1px rgba(201,168,76,0.2);
}

.book-card__cover {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--c-black);
}

.book-card__cover-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0A0A0A 0%, #181410 60%, #0A0A0A 100%);
}

.book-card__cover-shine {
  position: absolute;
  top: -50%;
  left: -60%;
  width: 80%;
  height: 200%;
  background: linear-gradient(105deg, transparent 40%, rgba(201,168,76,0.06) 50%, transparent 60%);
  transform: skewX(-15deg);
  transition: left var(--t-slow) var(--ease-out);
  pointer-events: none;
}
.book-card:hover .book-card__cover-shine { left: 120%; }

.book-card__numeral {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--c-gold);
  opacity: 0.25;
  user-select: none;
  transition: opacity var(--t-base);
}
.book-card:hover .book-card__numeral { opacity: 0.5; }

.book-card__info {
  padding: var(--sp-6) var(--sp-6) var(--sp-8);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  flex: 1;
}

.book-card__category {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-gold-deep);
}

.book-card__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--c-black);
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.book-card__author {
  font-size: var(--text-sm);
  color: var(--c-text-muted);
  font-style: italic;
  margin-bottom: var(--sp-2);
}

.book-card__desc {
  font-size: var(--text-sm);
  color: var(--c-text-secondary);
  line-height: 1.65;
  flex: 1;
}

.book-card .btn { margin-top: var(--sp-5); align-self: flex-start; }

/* --------------------------------------------------------------------------
   13. YOUTUBE
   -------------------------------------------------------------------------- */
.youtube__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
}
@media (min-width: 900px) {
  .youtube__grid { grid-template-columns: 3fr 2fr; align-items: start; }
}

.youtube__embed-wrap {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  border: var(--border-gold-faint);
  overflow: hidden;
}
.youtube__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.youtube__video-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--c-white);
  margin-top: var(--sp-5);
}

.youtube__recent-heading {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--c-gold);
  margin-bottom: var(--sp-6);
}

.youtube__list { margin-bottom: var(--sp-8); }
.youtube__list-item { border-bottom: var(--border-white-faint); }

.youtube__list-link {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) 0;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.5);
  transition: color var(--t-fast);
}
.youtube__list-link:hover { color: var(--c-gold); }

.youtube__play-icon {
  font-size: 0.6rem;
  color: var(--c-gold);
  flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   14. CTA SECTION
   -------------------------------------------------------------------------- */
.cta-section {
  position: relative;
  background: var(--c-black);
  padding-block: var(--sp-40);
  text-align: center;
  overflow: hidden;
}

.cta-section__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 110%, rgba(201,168,76,0.09) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 20% 20%, rgba(201,168,76,0.03) 0%, transparent 50%);
}

.cta-section__inner { position: relative; z-index: 1; }

.cta-section__ornament {
  font-size: 2rem;
  color: var(--c-gold);
  opacity: 0.35;
  display: block;
  margin-bottom: var(--sp-6);
  letter-spacing: 0.1em;
}

.cta-section__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-3xl), 6vw, var(--text-5xl));
  font-weight: 300;
  color: var(--c-white);
  line-height: 1.2;
  margin-bottom: var(--sp-5);
  letter-spacing: -0.01em;
}
.cta-section__title em {
  font-weight: 700;
  font-style: italic;
}

.cta-section__subtitle {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.35);
  margin-bottom: var(--sp-10);
}

/* --------------------------------------------------------------------------
   15. FOOTER
   -------------------------------------------------------------------------- */
.footer {
  background: var(--c-dark);
}

.footer__top {
  border-top: 2px solid var(--c-gold);
  padding-block: var(--sp-24) var(--sp-16);
}

.footer__top-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-16);
}
@media (min-width: 768px) {
  .footer__top-inner { grid-template-columns: 260px 1fr; align-items: start; }
}

.footer__logo {
  height: 52px;
  width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: var(--sp-4);
}

.footer__tagline {
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  margin-bottom: var(--sp-6);
}

.footer__socials {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.footer__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: var(--sp-10);
}

.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: var(--sp-5);
}

.footer__list { display: flex; flex-direction: column; gap: var(--sp-3); }

.footer__link {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.4);
  transition: color var(--t-fast);
}
.footer__link:hover { color: var(--c-white); }
.footer__link--sm   { font-size: var(--text-xs); }

.footer__link--social {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
}
.footer__social-icon {
  width: 14px;
  height: 14px;
  opacity: 0.6;
  transition: opacity var(--t-fast);
}
.footer__link--social:hover .footer__social-icon { opacity: 1; }

.footer__bottom {
  border-top: var(--border-white-faint);
  padding-block: var(--sp-5);
}
.footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sp-4);
}

.footer__copy {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.2);
  letter-spacing: 0.05em;
}

.footer__legal {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.footer__sep { color: rgba(255,255,255,0.15); }

/* --------------------------------------------------------------------------
   16. ANIMAÇÕES
   -------------------------------------------------------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 1; }
  50%       { transform: scaleY(0.5); opacity: 0.3; }
}

/* IntersectionObserver classes */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }

.reveal-stagger > * {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}
.reveal-stagger.is-visible > *:nth-child(1) { transition-delay: 0.04s; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(2) { transition-delay: 0.10s; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(3) { transition-delay: 0.16s; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(4) { transition-delay: 0.22s; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(5) { transition-delay: 0.28s; opacity:1; transform:none; }
.reveal-stagger.is-visible > *:nth-child(6) { transition-delay: 0.34s; opacity:1; transform:none; }

/* --------------------------------------------------------------------------
   17. RESPONSIVIDADE MOBILE
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  :root {
    --sp-32: 5rem;
    --sp-40: 7rem;
    --sp-24: 4rem;
  }

  .topbar__tagline { display: none; }

  .header__burger { display: flex; }

  .header__nav {
    position: fixed;
    inset: calc(var(--topbar-h) + var(--header-h)) 0 0 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(6,6,6,0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: var(--sp-12) var(--sp-8);
    transform: translateX(100%);
    transition: transform var(--t-base) var(--ease-out);
    pointer-events: none;
    z-index: 850;
    gap: var(--sp-10);
  }
  .header__nav.is-open {
    transform: translateX(0);
    pointer-events: all;
  }

  .nav__list {
    flex-direction: column;
    align-items: center;
    gap: var(--sp-6);
  }
  .nav__link { font-size: var(--text-sm); letter-spacing: 0.18em; }

  /* Sociais aparecem no menu mobile */
  .nav__socials { display: flex; }

  .hero__actions { flex-direction: column; align-items: flex-start; }
  .hero__actions .btn { width: 100%; justify-content: center; }

  .hero__scroll { display: none; }

  .footer__bottom-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .hero__stat-value { font-size: var(--text-xl); }
  .hero__stats { gap: var(--sp-5); }
}

/* --------------------------------------------------------------------------
   18. ACESSIBILIDADE
   -------------------------------------------------------------------------- */
:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal, .reveal-stagger > * { opacity: 1; transform: none; }
}

/* --------------------------------------------------------------------------
   19. BOOK COVER — imagem real com fallback numérico
   -------------------------------------------------------------------------- */
.book-card__cover {
  position: relative;
  aspect-ratio: 2 / 3; /* proporção de capa de livro */
  overflow: hidden;
  background: var(--c-black);
}

/* Imagem da capa (ocupa 100% e oculta o numeral quando carregada) */
.book-card__cover-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  display: block;
  transition: transform var(--t-slow) var(--ease-out);
}
.book-card:hover .book-card__cover-img { transform: scale(1.04); }

/* Fallback numeral — fica abaixo da imagem, aparece se a img falhar */
.book-card__cover-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0A0A0A 0%, #181410 60%, #0A0A0A 100%);
  z-index: 0;
}

/* Efeito de brilho fica acima da imagem */
.book-card__cover-shine { z-index: 2; }

/* --------------------------------------------------------------------------
   20. MODAL DE ARTIGO
   -------------------------------------------------------------------------- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Oculto via hidden attr — quando ativo removemos hidden e animamos */
.modal[hidden] { display: none; }

/* Backdrop */
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  cursor: pointer;
  animation: backdropIn var(--t-base) var(--ease-out) both;
}

/* Painel central */
.modal__panel {
  position: relative;
  z-index: 1;
  background: var(--c-dark);
  border: var(--border-gold-faint);
  border-top: 2px solid var(--c-gold);
  width: min(94vw, 720px);
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  animation: modalIn var(--t-slow) var(--ease-out) both;
  box-shadow: 0 40px 100px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(201,168,76,0.08);
}

/* Botão fechar */
.modal__close {
  position: absolute;
  top: var(--sp-5);
  right: var(--sp-5);
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.45);
  z-index: 2;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
  cursor: pointer;
  background: none;
}
.modal__close:hover {
  border-color: var(--c-gold);
  color: var(--c-gold);
  background: var(--c-gold-faint);
}

/* Área scrollável */
.modal__scroll {
  overflow-y: auto;
  padding: var(--sp-12) var(--sp-10) var(--sp-12);
  flex: 1;
  overscroll-behavior: contain;
  /* scrollbar discreta */
  scrollbar-width: thin;
  scrollbar-color: rgba(201,168,76,0.25) transparent;
}
.modal__scroll::-webkit-scrollbar { width: 4px; }
.modal__scroll::-webkit-scrollbar-track { background: transparent; }
.modal__scroll::-webkit-scrollbar-thumb {
  background: rgba(201,168,76,0.25);
  border-radius: 2px;
}

/* Cabeçalho do modal */
.modal__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-5);
}

.modal__tag {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.modal__date,
.modal__read-time {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

.modal__sep { color: rgba(255,255,255,0.15); font-size: var(--text-xs); }

.modal__title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-6);
  padding-right: var(--sp-10); /* evita sobreposição com o X */
}

.modal__divider {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--c-gold), transparent);
  margin-bottom: var(--sp-8);
}

/* Conteúdo do artigo */
.modal__body {
  font-size: clamp(0.97rem, 1.5vw, 1.06rem);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.65);
}

.modal__body p { margin-bottom: var(--sp-5); }
.modal__body p:last-child { margin-bottom: 0; }

.modal__body strong {
  color: var(--c-white);
  font-weight: 600;
}

.modal__body em {
  color: var(--c-gold-bright);
  font-style: italic;
}

/* Animações do modal */
@keyframes backdropIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes modalOut {
  from { opacity: 1; transform: translateY(0) scale(1); }
  to   { opacity: 0; transform: translateY(16px) scale(0.98); }
}

/* Mobile: modal ocupa a tela inteira */
@media (max-width: 640px) {
  .modal {
    align-items: flex-end;
  }

  .modal__panel {
    width: 100%;
    max-height: 92svh;
    border-left: none;
    border-right: none;
    border-bottom: none;
    animation: modalInMobile var(--t-slow) var(--ease-out) both;
  }

  .modal__scroll { padding: var(--sp-8) var(--sp-6) var(--sp-10); }

  @keyframes modalInMobile {
    from { opacity: 0; transform: translateY(100%); }
    to   { opacity: 1; transform: translateY(0); }
  }
}

/* --------------------------------------------------------------------------
   21. ARTIGOS PAGE — página artigos.html
   -------------------------------------------------------------------------- */
.page-hero {
  background: var(--c-dark);
  padding-top: calc(var(--total-nav) + var(--sp-20));
  padding-bottom: var(--sp-20);
  text-align: center;
  border-bottom: 1px solid rgba(201,168,76,0.1);
}

.page-hero__eyebrow {
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--c-gold);
  font-weight: 500;
  display: block;
  margin-bottom: var(--sp-4);
}

.page-hero__title {
  font-family: var(--font-display);
  font-size: clamp(var(--text-4xl), 7vw, var(--text-6xl));
  font-weight: 700;
  color: var(--c-white);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: var(--sp-5);
}

.page-hero__subtitle {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.4);
  max-width: 480px;
  margin-inline: auto;
}

/* Filtros */
.filters {
  background: var(--c-dark);
  padding-block: var(--sp-6);
  position: sticky;
  top: var(--total-nav);
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.filters__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.45rem 1.1rem;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 2px;
  color: rgba(255,255,255,0.45);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast);
}

.filter-btn:hover {
  border-color: rgba(255,255,255,0.3);
  color: var(--c-white);
}

.filter-btn.is-active {
  background: var(--c-gold);
  border-color: var(--c-gold);
  color: var(--c-black);
}

/* Grid da página de artigos */
.articles-page {
  background: var(--c-dark);
  padding-block: var(--sp-16) var(--sp-32);
}

.articles-page__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1px;
  background: rgba(255,255,255,0.04);
  margin-bottom: var(--sp-12);
}

/* Card oculto pelo filtro */
.card[hidden] { display: none; }

.articles-page__load-more {
  text-align: center;
}