:root {
  color-scheme: dark;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #0d1b2a;
  color: #ffffff;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
}

.font-display {
  font-family: 'Playfair Display', Georgia, serif;
}

.font-mono {
  font-family: 'DM Mono', 'Courier New', monospace;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}

.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.backdrop-nav {
  background-color: rgba(13, 27, 42, 0.97);
  backdrop-filter: blur(8px);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.25);
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid #C8952A;
  outline-offset: 2px;
}

.bg-grid-texture {
  background-image: linear-gradient(rgba(255,255,255,0.5) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.5) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-image {
  height: 420px;
  filter: grayscale(15%) contrast(1.05);
}

.scroll-gradient {
  background: linear-gradient(to bottom, rgba(255,255,255,0.2), transparent);
}

.about-image {
  height: 460px;
}

.bg-numbers-overlay {
  background-image: url('https://images.unsplash.com/photo-1481627834876-b7833e8f5570?w=1400&h=600&fit=crop&auto=format');
}

.bg-atuacao-overlay {
  background-image: url('https://images.unsplash.com/photo-1481627834876-b7833e8f5570?w=1400&h=900&fit=crop&auto=format');
}

.bg-callout-overlay {
  background-image: url('https://images.unsplash.com/photo-1524995997946-a1c2e315a42f?w=1400&h=800&fit=crop&auto=format');
}

.pillar-icon-bg {
  background-color: rgba(200,149,42,0.18);
}

.pillar-bullet {
  background-color: #C8952A;
}

.stat-value {
  color: #C8952A;
}

.book-cover {
  min-height: 360px;
  position: relative;
  overflow: hidden;
  border-radius: 28px;
}

@media (min-width: 768px) {
  .book-cover {
    min-height: 420px;
  }
}

.book-cover::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at top right, rgba(255,255,255,0.16), transparent 35%);
  pointer-events: none;
}

.book-spine {
  background: rgba(0,0,0,0.25);
}

.book-decorative {
  background-color: rgba(200,149,42,0.12);
}

.article-card {
  border-top: 3px solid #C8952A;
}

.expertise-card {
  background-color: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
}

.contribution-card {
  border: 1px solid rgba(28,18,8,0.10);
  border-top-width: 3px;
  border-top-color: #C8952A;
}

.contribution-icon-bg {
  background-color: #EDE7DA;
}

.video-image-wrapper {
  background-color: #0D1B2A;
}

.video-play-inner {
  background-color: rgba(200,149,42,0.92);
}

.video-category-badge {
  background-color: rgba(13,27,42,0.85);
  color: #C8952A;
}

.testimonial-bullet {
  width: 8px;
  height: 4px;
  border-radius: 2px;
  background-color: rgba(255,255,255,0.2);
  transition: width 0.2s ease, background-color 0.2s ease;
}

.testimonial-bullet.active {
  width: 24px;
  background-color: #C8952A;
}

.bg-pillar-1 { background-color: #0D1B2A; }
.bg-pillar-2 { background-color: #1A3A54; }
.bg-pillar-3 { background-color: #2C3E50; }
.bg-pillar-4 { background-color: #5C2E0E; }

.bg-book-1 { background-color: #0D1B2A; }
.bg-book-2 { background-color: #5C2E0E; }
.bg-book-3 { background-color: #1A3A54; }
.bg-book-4 { background-color: #2C3E50; }
.bg-book-5 { background-color: #3B2214; }