/* ==========================================================================
   PORTAL GEaD • UFG • DESIGN MIDIÁTICO, ORGÂNICO & CONECTIVO
   FE • PPGE • UFG
   ========================================================================== */

:root {
  --color-primary: #14494B;
  --color-primary-light: #227073;
  --color-ead-turquesa: #00E5FF;
  --color-ead-deep: #00989E;
  --color-ufg-blue: #006699;
  --color-accent-gold: #FFA502;
  
  --bg-space: #060d13;
  --bg-surface: #0a141d;
  --bg-surface-elevated: rgba(14, 26, 36, 0.88);
  --bg-glass-card: rgba(255, 255, 255, 0.035);
  --bg-glass-border: rgba(255, 255, 255, 0.08);
  
  --text-pure: #ffffff;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
}

html.light-mode {
  --bg-space: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: rgba(255, 255, 255, 0.95);
  --bg-glass-card: rgba(0, 0, 0, 0.025);
  --bg-glass-border: rgba(0, 0, 0, 0.08);
  
  --text-pure: #0f172a;
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-space);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 1. TOP BAR */
.site-top-bar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 36px;
  background: var(--bg-surface-elevated);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--bg-glass-border);
}

.brand-combo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-combo img {
  height: 32px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.brand-combo img:hover {
  transform: translateY(-1px);
}

.brand-divider {
  width: 1px;
  height: 24px;
  background: var(--bg-glass-border);
}

.nav-inline-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-inline-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.nav-inline-link:hover {
  color: var(--color-ead-turquesa);
  transform: translateY(-1px);
}

.top-bar-ctas {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-cta-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-primary);
  background: var(--bg-glass-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-cta-outline:hover {
  border-color: var(--color-ead-turquesa);
  color: var(--color-ead-turquesa);
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: 0.86rem;
  font-weight: 700;
  color: #ffffff;
  background: linear-gradient(135deg, #00989E, #14494B);
  border: 1px solid rgba(0, 229, 255, 0.3);
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(0, 152, 158, 0.25);
  transition: all 0.2s ease;
}

.btn-cta-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0, 152, 158, 0.4);
}

/* 2. HERO MIDIÁTICA */
.visual-hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px;
  overflow: hidden;
}

.hero-canvas-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.hero-inner-content {
  position: relative;
  z-index: 2;
  max-width: 960px;
  margin: 0 auto;
}

.hero-badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 0;
  background: transparent;
  border: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--color-ead-turquesa);
  margin-bottom: 24px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero-badge-tag::before {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-ead-turquesa), transparent);
}

.hero-badge-tag::after {
  content: '';
  display: inline-block;
  width: 28px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-ead-turquesa));
}

.hero-main-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 900;
  line-height: 1.12;
  color: var(--text-pure);
  letter-spacing: -0.035em;
  margin-bottom: 22px;
}

.hero-main-title span {
  background: linear-gradient(135deg, #00E5FF, #00989E, #227073);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead-text {
  font-size: 1.16rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 820px;
  margin: 0 auto 36px auto;
}

.hero-action-buttons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* 3. SEÇÕES CONTÍNUAS */
.stream-section {
  padding: 100px 32px;
  position: relative;
}

.stream-section.alt-bg {
  background: var(--bg-surface);
}

.section-container {
  max-width: 1240px;
  margin: 0 auto;
}

.section-heading-block {
  text-align: center;
  max-width: 800px;
  margin: 0 auto 60px auto;
}

.section-kicker {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-ead-turquesa);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 800;
  color: var(--text-pure);
  letter-spacing: -0.025em;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* 4. OS 4 PILARES */
.pillars-stream-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 28px;
}

.pillar-stream-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  position: relative;
  transition: all 0.25s ease;
}

.pillar-stream-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-ead-turquesa);
  box-shadow: 0 16px 36px rgba(0, 152, 158, 0.15);
}

.pillar-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.icon-ia { background: rgba(0, 229, 255, 0.12); color: #00E5FF; }
.icon-ead { background: rgba(0, 152, 158, 0.15); color: #00989E; }
.icon-leieh { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.icon-hub { background: rgba(255, 165, 2, 0.15); color: #FFA502; }

.pillar-card-title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 12px;
}

.pillar-card-text {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
}

.pillar-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.p-tag {
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
}

/* 5. BANNER SABER-FE */
.saber-fe-banner {
  background: linear-gradient(135deg, rgba(0, 152, 158, 0.14), rgba(0, 102, 153, 0.1));
  border: 1px solid rgba(0, 229, 255, 0.35);
  border-radius: var(--radius-lg);
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: center;
  margin-bottom: 44px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3);
}

.saber-fe-info h3 {
  font-size: 1.95rem;
  font-weight: 800;
  color: var(--text-pure);
  margin-bottom: 10px;
}

.saber-fe-info p {
  font-size: 0.98rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 720px;
}

.saber-fe-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 20px;
}

.hl-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ead-turquesa);
}

/* 6. VITRINE DE ARTEFATOS */
.tools-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.tool-box-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.tool-header-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 18px;
}

/* 7. BIBLIOTECA */
.books-showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 32px;
}

.book-visual-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.35s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  perspective: 1200px;
}

.book-visual-card:hover {
  transform: translateY(-8px);
  border-color: var(--color-ead-turquesa);
  box-shadow: 0 24px 48px -12px rgba(0, 0, 0, 0.6), 0 0 24px rgba(46, 170, 181, 0.15);
}

.book-cover-box {
  width: 100%;
  height: 270px;
  background: radial-gradient(circle at 50% 30%, rgba(34, 112, 115, 0.15) 0%, #04090e 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 22px;
  border-bottom: 1px solid var(--bg-glass-border);
  perspective: 1000px;
  position: relative;
}

.book-cover-box img {
  max-height: 100%;
  max-width: 100%;
  object-fit: contain;
  border-radius: 3px 6px 6px 3px;
  transform: rotateY(-8deg) rotateX(2deg);
  transform-origin: left center;
  box-shadow: -6px 8px 20px -2px rgba(0, 0, 0, 0.65), 
              0 0 1px rgba(255, 255, 255, 0.3);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.book-visual-card:hover .book-cover-box img {
  transform: rotateY(0deg) rotateX(0deg) scale(1.04);
  box-shadow: 0 16px 32px -4px rgba(0, 0, 0, 0.7), 0 0 1px rgba(255, 255, 255, 0.4);
}

.book-info-body {
  padding: 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.book-type-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--color-ead-turquesa);
  margin-bottom: 6px;
}

.book-card-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-pure);
  line-height: 1.35;
  margin-bottom: 8px;
}

.book-card-authors {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.book-btn-row {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

/* 8. CÍRCULOS DE PESQUISADORES */
.circles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 24px;
}

.circle-card {
  background: var(--bg-glass-card);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.circle-number {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(0, 229, 255, 0.12);
  color: var(--color-ead-turquesa);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  flex-shrink: 0;
}

.circle-info h4 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-pure);
  margin-bottom: 6px;
}

.circle-info p {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* 9. INFORMATIVO & FOOTER */
.veredas-box {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--bg-glass-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  max-width: 820px;
  margin: 0 auto;
  box-shadow: 0 16px 40px rgba(0,0,0,0.25);
}

.site-footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--bg-glass-border);
  padding: 70px 32px 36px 32px;
}

.footer-inner-grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-ruler {
  max-width: 1240px;
  margin: 44px auto 0 auto;
  padding-top: 28px;
  border-top: 1px solid var(--bg-glass-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-ruler-logos {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-ruler-logos img {
  height: 30px;
  width: auto;
  opacity: 0.88;
}