/* ==========================================================================
   BIBLIOCALIBRE PRO / LIVROLUZ — OFFICIAL LANDING PAGE (bibliocalibre.wapps.dev.br)
   Visual System aligned with WApps Developer Hub (wapps.dev.br)
   ========================================================================== */

:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Color Palette - Apple Pro Dark Theme */
  --bg-app: #07090e;
  --bg-surface: #0e121b;
  --bg-surface-elevated: #151b27;
  --bg-glass: rgba(18, 23, 34, 0.75);
  --bg-glass-strong: rgba(14, 18, 28, 0.92);
  --bg-hover: rgba(255, 255, 255, 0.05);

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.18);
  --border-focus: #38bdf8;

  /* Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #07090e;

  /* Brand Accents */
  --accent-cyan: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-purple: #a855f7;
  --accent-emerald: #10b981;
  --accent-amber: #f59e0b;
  --accent-rose: #f43f5e;
  
  --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #6366f1 50%, #a855f7 100%);
  --accent-gradient-hover: linear-gradient(135deg, #0ea5e9 0%, #4f46e5 50%, #9333ea 100%);
  --accent-glow: 0 0 35px rgba(99, 102, 241, 0.35);

  /* Radius & Shadows */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-card: 0 8px 30px -4px rgba(0, 0, 0, 0.5), 0 2px 8px -1px rgba(0, 0, 0, 0.3);
  --shadow-hover: 0 20px 45px -8px rgba(0, 0, 0, 0.7), 0 0 0 1px rgba(56, 189, 248, 0.25);
  --shadow-glow: 0 0 40px rgba(56, 189, 248, 0.2);

  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
}

/* Global Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

body {
  background-color: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-main);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Ambient Animated Background Canvas */
.ambient-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(110px);
  opacity: 0.22;
  mix-blend-mode: screen;
  will-change: transform;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #38bdf8 0%, #6366f1 70%, transparent 100%);
  top: -120px;
  left: 15%;
  animation: floatOrb1 20s ease-in-out infinite alternate;
}

.orb-2 {
  width: 650px;
  height: 650px;
  background: radial-gradient(circle, #a855f7 0%, #ec4899 65%, transparent 100%);
  bottom: 10%;
  right: 5%;
  animation: floatOrb2 24s ease-in-out infinite alternate;
}

.orb-3 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, #0ea5e9 0%, #10b981 70%, transparent 100%);
  top: 45%;
  left: 60%;
  animation: floatOrb3 22s ease-in-out infinite alternate;
}

@keyframes floatOrb1 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(60px, 50px) scale(1.08); }
  100% { transform: translate(-40px, 90px) scale(0.95); }
}

@keyframes floatOrb2 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-70px, -60px) scale(1.12); }
  100% { transform: translate(60px, -80px) scale(0.92); }
}

@keyframes floatOrb3 {
  0% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(-50px, 50px) scale(1.05); }
  100% { transform: translate(60px, -40px) scale(0.98); }
}

/* Page Wrapper */
.page-container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Header & Navigation */
.header-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 36px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(7, 9, 14, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.header-nav.scrolled {
  background: rgba(7, 9, 14, 0.9);
  padding: 12px 36px;
  border-bottom-color: rgba(255, 255, 255, 0.12);
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand-icon-box {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(99, 102, 241, 0.2));
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.brand-icon-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-title {
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-badge {
  font-size: 0.68rem;
  font-weight: 700;
  font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: var(--radius-full);
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.brand-domain {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Nav Links */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.90rem;
  font-weight: 500;
  transition: color var(--duration-fast) ease;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-wapps-hub {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: all var(--duration-fast) ease;
}

.btn-wapps-hub:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.btn-wapps-hub img {
  width: 16px;
  height: 16px;
  border-radius: 4px;
}

.btn-github-nav {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
  transition: all var(--duration-fast) ease;
}

.btn-github-nav:hover {
  background: rgba(56, 189, 248, 0.22);
  border-color: rgba(56, 189, 248, 0.5);
  transform: translateY(-1px);
}

/* Mobile Toggle */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 6px;
}

/* Hero Section */
.hero-section {
  padding: 80px 24px 60px;
  max-width: 1240px;
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.spotlight-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.35);
  color: #c7d2fe;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 24px;
  box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.spotlight-pill svg {
  color: #a855f7;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.12;
  margin-bottom: 22px;
  max-width: 980px;
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 820px;
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-badges-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 0.80rem;
  font-weight: 600;
}

.badge-tag.highlight {
  background: rgba(56, 189, 248, 0.1);
  border-color: rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
}

.badge-tag.green {
  background: rgba(16, 185, 129, 0.1);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34d399;
}

/* Hero CTA Buttons */
.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 50px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient);
  color: #ffffff;
  font-size: 0.98rem;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(56, 189, 248, 0.35);
  transition: all var(--duration-fast) var(--ease-spring);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--accent-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.98rem;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: all var(--duration-fast) ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* Quick Terminal Snippet */
.terminal-bar {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(10, 14, 22, 0.85);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 18px;
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-secondary);
  box-shadow: var(--shadow-card);
  max-width: 580px;
  width: 100%;
}

.terminal-code {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.terminal-prompt {
  color: var(--accent-cyan);
  font-weight: 700;
}

.btn-copy-code {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  padding: 6px 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-family: var(--font-main);
  font-weight: 600;
  transition: all var(--duration-fast) ease;
}

.btn-copy-code:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

/* Gallery / Screenshots Section */
.gallery-section {
  padding: 60px 24px;
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-tag {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
}

/* Showcase Grid */
.showcase-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 28px;
  align-items: start;
}

@media (max-width: 1024px) {
  .showcase-grid {
    grid-template-columns: 1fr;
  }
}

.showcase-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all var(--duration-normal) var(--ease-spring);
  display: flex;
  flex-direction: column;
}

.showcase-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.showcase-card-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.card-header-info p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.pill-status {
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 0.74rem;
  font-weight: 700;
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.showcase-img-container {
  position: relative;
  background: #000000;
  cursor: zoom-in;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.showcase-img-container img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.4s var(--ease-spring);
}

.showcase-card:hover .showcase-img-container img {
  transform: scale(1.02);
}

.img-zoom-hint {
  position: absolute;
  bottom: 14px;
  right: 14px;
  background: rgba(10, 14, 22, 0.85);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  padding: 5px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.showcase-img-container:hover .img-zoom-hint {
  opacity: 1;
}

.showcase-card-body {
  padding: 24px;
}

.feature-bullet-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.feature-bullet-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.feature-bullet-item svg {
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 3px;
}

.feature-bullet-item strong {
  color: var(--text-primary);
}

/* Dual Use Cases Section */
.dual-use-section {
  padding: 70px 24px;
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
}

.dual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}

@media (max-width: 860px) {
  .dual-grid {
    grid-template-columns: 1fr;
  }
}

.dual-card {
  background: linear-gradient(145deg, rgba(18, 23, 34, 0.85), rgba(12, 16, 25, 0.95));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--duration-normal) var(--ease-spring);
}

.dual-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: var(--shadow-hover);
}

.dual-card.personal::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #38bdf8, #6366f1);
}

.dual-card.institutional::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #a855f7, #ec4899);
}

.dual-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.dual-card.personal .dual-icon-box {
  background: rgba(56, 189, 248, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.dual-card.institutional .dual-icon-box {
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-purple);
  border: 1px solid rgba(168, 85, 247, 0.3);
}

.dual-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 12px;
}

.dual-card.personal .dual-badge {
  background: rgba(56, 189, 248, 0.12);
  color: var(--accent-cyan);
}

.dual-card.institutional .dual-badge {
  background: rgba(168, 85, 247, 0.12);
  color: var(--accent-purple);
}

.dual-title {
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.dual-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.dual-checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.dual-checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.dual-checklist-item svg {
  flex-shrink: 0;
  margin-top: 3px;
}

.dual-card.personal .dual-checklist-item svg {
  color: var(--accent-cyan);
}

.dual-card.institutional .dual-checklist-item svg {
  color: var(--accent-purple);
}

/* Features Grid Section */
.features-section {
  padding: 80px 24px;
  max-width: 1240px;
  margin: 0 auto;
  width: 100%;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}

.feature-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--duration-normal) var(--ease-spring);
  display: flex;
  flex-direction: column;
  position: relative;
}

.feature-card:hover {
  background: rgba(22, 28, 40, 0.85);
  border-color: rgba(56, 189, 248, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-icon-wrapper {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-cyan);
  margin-bottom: 18px;
  transition: all var(--duration-fast) ease;
}

.feature-card:hover .feature-icon-wrapper {
  background: rgba(56, 189, 248, 0.15);
  border-color: rgba(56, 189, 248, 0.4);
  color: #38bdf8;
  transform: scale(1.08);
}

.feature-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-bottom: 10px;
}

.feature-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Installation Guide Section */
.install-section {
  padding: 80px 24px;
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
}

.install-box {
  background: linear-gradient(145deg, rgba(18, 23, 34, 0.9), rgba(10, 14, 22, 0.95));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 44px 36px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(16px);
}

.install-steps {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 36px;
  margin-bottom: 40px;
}

.install-step-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #ffffff;
  font-weight: 800;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 0 15px rgba(56, 189, 248, 0.35);
}

.step-content h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.step-content p {
  font-size: 0.90rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.step-content code {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-cyan);
}

/* FAQ Section */
.faq-section {
  padding: 70px 24px;
  max-width: 900px;
  margin: 0 auto;
  width: 100%;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  background: var(--bg-glass);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--duration-fast) ease;
}

.faq-item:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.02rem;
  font-weight: 700;
  font-family: var(--font-main);
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.faq-icon {
  transition: transform 0.3s ease;
  color: var(--text-muted);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-cyan);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 250px;
  padding: 0 24px 20px;
}

/* Final CTA Section */
.final-cta-section {
  padding: 80px 24px;
  max-width: 1040px;
  margin: 0 auto;
  width: 100%;
  text-align: center;
}

.final-cta-card {
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.15) 0%, rgba(14, 18, 28, 0.9) 70%);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-xl);
  padding: 60px 32px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
  position: relative;
  overflow: hidden;
}

.final-cta-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.final-cta-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto 36px;
}

/* Footer */
.footer-main {
  background: rgba(7, 9, 14, 0.95);
  border-top: 1px solid var(--border-subtle);
  padding: 50px 36px 36px;
  margin-top: auto;
}

.footer-content {
  max-width: 1240px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  transition: color var(--duration-fast) ease;
}

.footer-link:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--accent-cyan);
  text-decoration: none;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(5, 7, 12, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-content {
  position: relative;
  max-width: 95vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-img {
  max-width: 100%;
  max-height: 82vh;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.15);
  object-fit: contain;
}

.lightbox-caption {
  margin-top: 14px;
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-align: center;
}

.lightbox-close-btn {
  position: absolute;
  top: -46px;
  right: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-radius: 50%;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--duration-fast) ease;
}

.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: scale(1.1);
}

/* Mobile Responsive */
@media (max-width: 768px) {
  .header-nav {
    padding: 14px 20px;
  }
  
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 14, 22, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.7);
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .btn-wapps-hub {
    display: none;
  }
  
  .hero-section {
    padding: 50px 18px 40px;
  }
  
  .install-box {
    padding: 28px 20px;
  }
}