/* ==========================================================================
   Gemini AI PRO - Main Stylesheet (Google Aesthetics & Ad Optimization)
   ========================================================================== */

/* Header / Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  box-shadow: var(--shadow-sm);
  background: rgba(255, 255, 255, 0.95);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.brand-logo .gemini-sparkle {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
}

.brand-logo .pro-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--gemini-gradient-soft);
  color: var(--g-blue-600);
  border: 1px solid rgba(26, 115, 232, 0.2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
  flex-shrink: 0;
}

.header-btn-mobile {
  display: none;
}

.header-btn-desktop {
  display: inline;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--g-blue-600);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Common Button Styles (Google Pill Standard) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 24px;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--g-blue-600);
  color: var(--text-light);
  box-shadow: 0 1px 3px rgba(26, 115, 232, 0.3);
}

.btn-primary:hover {
  background: var(--g-blue-700);
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.4);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-gradient {
  background: var(--gemini-gradient);
  color: var(--text-light);
  box-shadow: var(--shadow-glow);
}

.btn-gradient:hover {
  filter: brightness(1.06);
  box-shadow: 0 8px 26px rgba(124, 58, 237, 0.35);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  background: var(--bg-primary);
}

.btn-outline:hover {
  background: var(--bg-subtle);
  border-color: #cbd5e1;
}

.btn-large {
  padding: 15px 32px;
  font-size: 1.05rem;
  font-weight: 600;
}

.btn-icon {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn-icon {
  transform: translateX(3px);
}

/* Announcement Pill */
.announcement-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  background: var(--g-blue-50);
  border: 1px solid rgba(66, 133, 244, 0.22);
  color: var(--g-blue-700);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.announcement-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--g-blue-600);
  box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.6);
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0.6); }
  70% { box-shadow: 0 0 0 8px rgba(26, 115, 232, 0); }
  100% { box-shadow: 0 0 0 0 rgba(26, 115, 232, 0); }
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  padding: 60px 0 70px;
  text-align: center;
  background: var(--gemini-gradient-glow);
  overflow: hidden;
}

.hero-content {
  max-width: 860px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2.4rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-title .highlight-text {
  background: var(--gemini-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.hero-description {
  font-size: clamp(1.05rem, 2vw, 1.28rem);
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 32px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* Hero Pricing Callout Card */
.hero-pricing-box {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  margin-bottom: 28px;
  max-width: 580px;
  width: 100%;
}

.hero-price-tag {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 8px;
  margin-bottom: 8px;
}

.hero-price-amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.hero-price-period {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.hero-price-badge {
  display: inline-block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--g-green-700);
  background: var(--g-green-100);
  padding: 4px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}

.hero-cta-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
}

.hero-trust-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.trust-item svg {
  width: 15px;
  height: 15px;
  color: var(--g-green-500);
}

/* ==========================================================================
   Section Headers
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--g-blue-600);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.08rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ==========================================================================
   Features Bento Grid
   ========================================================================== */
.features-section {
  padding: 80px 0;
  background: var(--bg-surface);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: #cbd5e1;
  box-shadow: var(--shadow-lg);
}

.card-span-6 { grid-column: span 6; }
.card-span-4 { grid-column: span 4; }
.card-span-8 { grid-column: span 8; }
.card-span-12 { grid-column: span 12; }

.bento-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  flex-shrink: 0;
}

.icon-blue { background: var(--g-blue-100); color: var(--g-blue-600); }
.icon-purple { background: var(--g-purple-100); color: var(--g-purple-600); }
.icon-green { background: var(--g-green-100); color: var(--g-green-500); }
.icon-amber { background: var(--g-amber-100); color: #d97706; }
.icon-red { background: #fee2e2; color: var(--g-coral-500); }

.bento-icon-wrapper svg {
  width: 26px;
  height: 26px;
}

.bento-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.tag-blue { background: var(--g-blue-100); color: var(--g-blue-700); }
.tag-purple { background: var(--g-purple-100); color: var(--g-purple-700); }
.tag-green { background: var(--g-green-100); color: var(--g-green-700); }
.tag-amber { background: var(--g-amber-100); color: #b45309; }

.bento-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bento-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.55;
  margin-bottom: 20px;
}

.feature-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}

.feature-pill {
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--bg-subtle);
  color: var(--text-secondary);
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-subtle);
}

/* Card Visual Mock / Feature Previews */
.card-visual-preview {
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  margin-top: 18px;
  font-size: 0.85rem;
}

.preview-chip-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
}

.preview-chip {
  background: var(--bg-primary);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--g-blue-600);
  border: 1px solid var(--border-card);
}

/* ==========================================================================
   Value Stack & ROI Section (Ad Conversion Booster)
   ========================================================================== */
.value-stack-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.value-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.value-card-summary {
  background: linear-gradient(145deg, #ffffff 0%, #f4f8fe 100%);
  border: 1px solid rgba(66, 133, 244, 0.25);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
}

.value-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 28px 0;
}

.value-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-card);
  font-size: 0.95rem;
}

.value-item-name {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  color: var(--text-primary);
}

.value-item-name svg {
  width: 18px;
  height: 18px;
  color: var(--g-blue-600);
}

.value-item-price {
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 0.88rem;
}

.value-total-box {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border-card);
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
}

.total-label {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.total-val-bundle {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--g-blue-600);
}

/* ==========================================================================
   Comparison Table (Free vs AI Pro)
   ========================================================================== */
.comparison-section {
  padding: 80px 0;
  background: var(--bg-surface);
}

.comparison-table-wrapper {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  box-shadow: var(--shadow-md);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.comparison-table th,
.comparison-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.92rem;
}

.comparison-table th {
  background: var(--bg-subtle);
  font-weight: 700;
  color: var(--text-primary);
}

.comparison-table th.col-pro {
  background: var(--g-blue-100);
  color: var(--g-blue-700);
  border-top-left-radius: 12px;
  border-top-right-radius: 12px;
}

.comparison-table td.col-pro {
  background: rgba(232, 240, 254, 0.35);
  font-weight: 600;
  color: var(--text-primary);
}

.comparison-badge-pro {
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: var(--g-blue-600);
  color: #ffffff;
  margin-left: 6px;
}

.check-icon {
  width: 20px;
  height: 20px;
  color: var(--g-green-500);
}

.cross-icon {
  width: 20px;
  height: 20px;
  color: #9ca3af;
}

/* ==========================================================================
   Testimonials & Social Proof
   ========================================================================== */
.testimonials-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

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

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gemini-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 1rem;
}

.author-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text-primary);
}

.author-role {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==========================================================================
   Final Pricing / Checkout Section
   ========================================================================== */
.pricing-section {
  padding: 90px 0;
  background: radial-gradient(circle at 50% 10%, rgba(26, 115, 232, 0.08) 0%, rgba(248, 250, 253, 1) 70%);
}

.pricing-card-highlight {
  max-width: 680px;
  margin: 0 auto;
  background: var(--bg-surface-elevated);
  border: 2px solid var(--g-blue-600);
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  box-shadow: 0 20px 40px -10px rgba(26, 115, 232, 0.18);
  position: relative;
  text-align: center;
}

.pricing-ribbon {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--g-blue-600);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 18px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(26, 115, 232, 0.3);
}

.plan-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.plan-subtitle {
  font-size: 0.98rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.plan-price-block {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin-bottom: 12px;
}

.plan-price-val {
  font-size: 3.2rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
}

.plan-price-freq {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.plan-perks-list {
  text-align: left;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 32px 0;
  padding: 0 10px;
}

.plan-perk-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.plan-perk-item svg {
  width: 20px;
  height: 20px;
  color: var(--g-blue-600);
  flex-shrink: 0;
  margin-top: 2px;
}

.security-seal-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-top: 24px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.security-seal {
  display: flex;
  align-items: center;
  gap: 6px;
}

.security-seal svg {
  width: 16px;
  height: 16px;
  color: var(--g-green-500);
}

/* ==========================================================================
   FAQ Section
   ========================================================================== */
.faq-section {
  padding: 80px 0;
  background: var(--bg-surface);
}

.faq-container {
  max-width: 780px;
  margin: 0 auto;
}

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

.faq-item {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item.is-open {
  border-color: var(--g-blue-500);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  text-align: left;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  cursor: pointer;
}

.faq-icon {
  width: 22px;
  height: 22px;
  color: var(--text-secondary);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--g-blue-600);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out, padding 0.35s ease-out;
  padding: 0 24px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.is-open .faq-answer {
  max-height: 300px;
  padding-bottom: 22px;
}

/* ==========================================================================
   Sticky Mobile Bar (Ad Conversion Booster)
   ========================================================================== */
.sticky-mobile-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-top: 1px solid var(--border-card);
  padding: 12px 18px;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  display: none;
  align-items: center;
  justify-content: space-between;
  transform: translateY(100%);
  transition: transform var(--transition-normal);
}

.sticky-mobile-bar.is-visible {
  transform: translateY(0);
}

.sticky-bar-info {
  display: flex;
  flex-direction: column;
}

.sticky-bar-title {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
}

.sticky-bar-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-subtle);
  padding: 50px 0 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.footer-links {
  display: flex;
  gap: 22px;
  list-style: none;
  flex-wrap: wrap;
}

.footer-link {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--g-blue-600);
}

.footer-disclaimer {
  line-height: 1.6;
  font-size: 0.78rem;
  border-top: 1px solid var(--border-card);
  padding-top: 20px;
  color: var(--text-muted);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 992px) {
  .nav-links {
    display: none;
  }
  .card-span-6, .card-span-4, .card-span-8 {
    grid-column: span 12;
  }
  .value-grid {
    grid-template-columns: 1fr;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .site-header {
    background: rgba(255, 255, 255, 0.96);
  }
  .header-container {
    height: 60px;
  }
  .header-btn-desktop {
    display: none;
  }
  .header-btn-mobile {
    display: inline;
  }
  .header-cta-btn {
    padding: 8px 14px;
    font-size: 0.82rem;
    font-weight: 600;
  }
  .brand-logo {
    font-size: 1.05rem;
    gap: 6px;
  }
  .brand-logo .gemini-sparkle {
    width: 22px;
    height: 22px;
  }
  .brand-logo .pro-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
  }
  .hero-section {
    padding: 30px 0 45px;
  }
  .announcement-badge {
    font-size: 0.78rem;
    padding: 6px 12px;
    line-height: 1.35;
    margin-bottom: 18px;
  }
  .hero-title {
    font-size: clamp(1.65rem, 5vw, 2.2rem);
    margin-bottom: 16px;
  }
  .hero-description {
    font-size: 0.95rem;
    margin-bottom: 24px;
  }
  .hero-pricing-box {
    padding: 20px 14px;
    border-radius: var(--radius-md);
  }
  .hero-price-amount {
    font-size: 2.2rem;
  }
  .hero-trust-row {
    flex-wrap: wrap;
    gap: 10px 14px;
  }
  .pricing-card-highlight {
    padding: 32px 16px;
    border-radius: var(--radius-lg);
  }
  .plan-price-val {
    font-size: 2.4rem;
  }
  .plan-perks-list {
    padding: 0;
  }
  .sticky-mobile-bar {
    display: flex;
  }
  .bento-card {
    padding: 22px 18px;
  }
}

@media (max-width: 380px) {
  .header-cta-btn {
    padding: 7px 10px;
    font-size: 0.76rem;
  }
  .brand-logo span:not(.pro-badge) {
    font-size: 0.95rem;
  }
}