/* ========================================
   ABOUT MODERN — Dribbble-inspired
   ======================================== */

/* ========== ANIMATIONS ========== */
@keyframes abFadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes abFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes abFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@keyframes abBounceIn {
  0% { transform: scale(0.3); opacity: 0; }
  50% { transform: scale(1.05); }
  70% { transform: scale(0.95); }
  100% { transform: scale(1); opacity: 1; }
}
@keyframes abPulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(43, 194, 255, 0.4); }
  50% { box-shadow: 0 0 0 12px rgba(43, 194, 255, 0); }
}
@keyframes abGradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@keyframes abSlideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes abSlideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}
@keyframes abCountUp {
  from { opacity: 0; transform: scale(0.5); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes abTimelineGrow {
  from { height: 0; }
  to { height: 100%; }
}

/* ========== SCROLL REVEAL ========== */
.ab-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.23, 1, 0.32, 1),
              transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}
.ab-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}
.ab-reveal-delay-1 { transition-delay: 0.1s; }
.ab-reveal-delay-2 { transition-delay: 0.2s; }
.ab-reveal-delay-3 { transition-delay: 0.3s; }
.ab-reveal-delay-4 { transition-delay: 0.4s; }
.ab-reveal-delay-5 { transition-delay: 0.5s; }
.ab-reveal-delay-6 { transition-delay: 0.6s; }
.ab-reveal-delay-7 { transition-delay: 0.7s; }
.ab-reveal-delay-8 { transition-delay: 0.8s; }

/* ========== HERO ========== */
.ab-hero {
  padding: 5rem 0 4rem;
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #f8fafc 0%, #eef2f7 40%, #e3edf7 100%);
  background-size: 200% 200%;
  animation: abGradientShift 12s ease infinite;
}

.ab-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 194, 255, 0.1) 0%, transparent 70%);
  animation: abFloat 10s ease-in-out infinite;
  pointer-events: none;
}

.ab-hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(69, 87, 99, 0.06) 0%, transparent 70%);
  animation: abFloat 7s ease-in-out infinite reverse;
  pointer-events: none;
}

.ab-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.ab-hero-content {
  animation: abSlideInLeft 0.9s ease-out;
}

.ab-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  background: rgba(43, 194, 255, 0.12);
  border: 1px solid rgba(43, 194, 255, 0.25);
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--puramane-navy);
  margin-bottom: 1.5rem;
  animation: abBounceIn 0.6s ease-out 0.3s both;
}

.ab-hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--puramane-navy);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.ab-hero-subtitle {
  font-size: 1.1875rem;
  color: rgba(69, 87, 99, 0.7);
  line-height: 1.7;
  margin-bottom: 2rem;
  max-width: 32rem;
}

.ab-hero-features {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.ab-hero-feat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--puramane-navy);
}

.ab-hero-feat-icon {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.625rem;
  background: linear-gradient(135deg, rgba(43, 194, 255, 0.12) 0%, rgba(69, 87, 99, 0.06) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--puramane-navy);
  flex-shrink: 0;
}

.ab-hero-btns {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.ab-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: var(--puramane-navy);
  color: white;
  border: none;
  border-radius: 100px;
  font-weight: 700;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 14px rgba(69, 87, 99, 0.25);
  animation: abPulseGlow 3s ease-in-out infinite;
}
.ab-btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 24px rgba(69, 87, 99, 0.3); }
.ab-btn-primary:active { transform: scale(0.97); }

.ab-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background: white;
  color: var(--puramane-navy);
  border: 2px solid rgba(69, 87, 99, 0.15);
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.ab-btn-secondary:hover { transform: translateY(-2px); border-color: var(--puramane-navy); }

/* Hero image */
.ab-hero-image {
  animation: abSlideInRight 0.9s ease-out;
  position: relative;
}

.ab-hero-image img {
  width: 100%;
  max-width: 520px;
  margin: 0 auto;
  display: block;
  border-radius: 1.5rem;
  box-shadow: 0 20px 60px rgba(69, 87, 99, 0.15);
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.ab-hero-image:hover img {
  transform: scale(1.02);
}

/* Rating badge */
.ab-rating-badge {
  position: absolute;
  bottom: -1rem;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  padding: 0.75rem 1.5rem;
  border-radius: 100px;
  box-shadow: 0 8px 24px rgba(69, 87, 99, 0.15);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: abBounceIn 0.6s ease-out 0.8s both;
  z-index: 2;
}

.ab-rating-stars {
  display: flex;
  gap: 2px;
}

.ab-rating-score {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--puramane-navy);
}

.ab-rating-count {
  font-size: 0.8125rem;
  color: rgba(69, 87, 99, 0.6);
}

/* ========== BENEFITS ========== */
.ab-benefits {
  padding: 5rem 0;
  background: white;
}

.ab-benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.ab-benefit-card {
  padding: 2.5rem 2rem;
  border-radius: 1.25rem;
  border: 1px solid rgba(69, 87, 99, 0.06);
  background: white;
  text-align: center;
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.4s ease;
}
.ab-benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(69, 87, 99, 0.1);
}

.ab-benefit-icon {
  width: 4rem;
  height: 4rem;
  border-radius: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  transition: transform 0.3s ease;
}
.ab-benefit-card:hover .ab-benefit-icon {
  transform: scale(1.1);
}

.ab-benefit-icon.blue {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(59, 130, 246, 0.05) 100%);
  color: #3b82f6;
}
.ab-benefit-icon.green {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
  color: #10b981;
}
.ab-benefit-icon.purple {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.15) 0%, rgba(139, 92, 246, 0.05) 100%);
  color: #8b5cf6;
}

.ab-benefit-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--puramane-navy);
  margin-bottom: 0.5rem;
}

.ab-benefit-text {
  font-size: 0.9375rem;
  color: rgba(69, 87, 99, 0.65);
  line-height: 1.6;
}

/* ========== ECO SECTION ========== */
.ab-eco {
  padding: 5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.ab-eco-card {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.ab-eco-glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 1.5rem;
  padding: 3.5rem;
  box-shadow: 0 8px 32px rgba(69, 87, 99, 0.08);
}

.ab-eco-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.ab-eco-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(16, 185, 129, 0.1);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #059669;
  margin-bottom: 1.5rem;
}

.ab-eco-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--puramane-navy);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.ab-eco-price {
  font-size: 4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--puramane-navy) 0%, #2BC2FF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.25rem;
}

.ab-eco-price-unit {
  font-size: 1rem;
  color: rgba(69, 87, 99, 0.6);
  font-weight: 500;
  margin-bottom: 1rem;
}

.ab-eco-desc {
  font-size: 1rem;
  color: rgba(69, 87, 99, 0.65);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.ab-eco-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1.5rem;
  background: rgba(69, 87, 99, 0.04);
  border-radius: 1rem;
}

.ab-eco-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--puramane-navy);
  line-height: 1;
}

.ab-eco-stat-equals {
  font-size: 1.5rem;
  color: rgba(69, 87, 99, 0.3);
  font-weight: 300;
}

.ab-eco-stat-label {
  font-size: 0.875rem;
  color: rgba(69, 87, 99, 0.6);
  font-weight: 500;
}

.ab-eco-image {
  border-radius: 1.25rem;
  overflow: hidden;
}

.ab-eco-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 1.25rem;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.ab-eco-image:hover img {
  transform: scale(1.08);
}

/* ========== REASONS ========== */
.ab-reasons {
  padding: 5rem 0;
  background: white;
}

.ab-reasons-header {
  text-align: center;
  margin-bottom: 3.5rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 2rem;
}

.ab-reasons-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--puramane-navy);
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.ab-reasons-brand {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(69, 87, 99, 0.4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.ab-reasons-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.ab-reason-card {
  border-radius: 1.25rem;
  overflow: hidden;
  background: white;
  border: 1px solid rgba(69, 87, 99, 0.06);
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.4s ease;
}
.ab-reason-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(69, 87, 99, 0.1);
}

.ab-reason-number {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--puramane-navy) 0%, #2BC2FF 100%);
  color: white;
  font-size: 1rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(69, 87, 99, 0.2);
}

.ab-reason-img {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.ab-reason-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.ab-reason-card:hover .ab-reason-img img {
  transform: scale(1.08);
}

.ab-reason-body {
  padding: 1.5rem;
}

.ab-reason-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--puramane-navy);
  margin-bottom: 0.5rem;
}

.ab-reason-text {
  font-size: 0.9375rem;
  color: rgba(69, 87, 99, 0.65);
  line-height: 1.6;
}

/* ========== TECHNOLOGY ========== */
.ab-tech {
  padding: 5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.ab-tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.ab-tech-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(43, 194, 255, 0.1);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--puramane-navy);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.ab-tech-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--puramane-navy);
  line-height: 1.2;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.ab-tech-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: rgba(69, 87, 99, 0.5);
  margin-bottom: 1rem;
}

.ab-tech-desc {
  font-size: 1rem;
  color: rgba(69, 87, 99, 0.65);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.ab-tech-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

.ab-tech-stat {
  padding: 1.25rem;
  border-radius: 1rem;
  background: rgba(69, 87, 99, 0.04);
  border: 1px solid rgba(69, 87, 99, 0.06);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.ab-tech-stat:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(69, 87, 99, 0.08);
}

.ab-tech-stat-value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--puramane-navy);
  letter-spacing: -0.02em;
}

.ab-tech-stat-label {
  font-size: 0.8125rem;
  color: rgba(69, 87, 99, 0.6);
  font-weight: 500;
}

.ab-tech-image {
  border-radius: 1.25rem;
  overflow: hidden;
}

.ab-tech-image img {
  width: 100%;
  border-radius: 1.25rem;
  box-shadow: 0 20px 40px rgba(69, 87, 99, 0.12);
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.ab-tech-image:hover img {
  transform: scale(1.03);
}

/* ========== TIMELINE (8 Steps) ========== */
.ab-timeline {
  padding: 5rem 0;
  background: white;
}

.ab-timeline-title {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--puramane-navy);
  text-align: center;
  margin-bottom: 4rem;
  letter-spacing: -0.02em;
}

.ab-timeline-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
}

/* Vertical line */
.ab-timeline-container::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, rgba(43, 194, 255, 0.3), rgba(69, 87, 99, 0.1));
  transform: translateX(-50%);
}

.ab-timeline-item {
  display: flex;
  align-items: flex-start;
  gap: 2rem;
  margin-bottom: 2.5rem;
  position: relative;
}

.ab-timeline-item:nth-child(even) {
  flex-direction: row-reverse;
  text-align: right;
}

.ab-timeline-dot {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--puramane-navy) 0%, #2BC2FF 100%);
  color: white;
  font-size: 0.875rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
  box-shadow: 0 4px 12px rgba(43, 194, 255, 0.25);
  transition: transform 0.3s ease;
}
.ab-timeline-item.visible .ab-timeline-dot {
  animation: abBounceIn 0.4s ease-out both;
}

.ab-timeline-content {
  flex: 1;
  max-width: calc(50% - 3.5rem);
  padding: 1.5rem;
  background: white;
  border-radius: 1rem;
  border: 1px solid rgba(69, 87, 99, 0.08);
  box-shadow: 0 2px 8px rgba(69, 87, 99, 0.04);
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), box-shadow 0.4s ease;
}
.ab-timeline-content:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(69, 87, 99, 0.08);
}

.ab-timeline-step-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--puramane-navy);
  margin-bottom: 0.375rem;
}

.ab-timeline-step-desc {
  font-size: 0.875rem;
  color: rgba(69, 87, 99, 0.65);
  line-height: 1.6;
}

/* ========== GALLERY ========== */
.ab-gallery {
  padding: 5rem 0;
  background: linear-gradient(180deg, #f8fafc 0%, #ffffff 100%);
}

.ab-gallery-title {
  font-size: 2rem;
  font-weight: 800;
  color: var(--puramane-navy);
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.ab-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 1.25rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.ab-gallery-item {
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  position: relative;
  transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
.ab-gallery-item:hover {
  transform: scale(1.03);
}

.ab-gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}
.ab-gallery-item:hover img {
  transform: scale(1.1);
}

.ab-gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(69, 87, 99, 0.3) 0%, transparent 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.ab-gallery-item:hover::after {
  opacity: 1;
}

/* ========== CTA ========== */
.ab-cta {
  padding: 6rem 0;
  background: linear-gradient(135deg, var(--puramane-navy) 0%, #1a3a4a 50%, #0d2a3a 100%);
  position: relative;
  overflow: hidden;
}

.ab-cta::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 194, 255, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.ab-cta-inner {
  max-width: 48rem;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 2rem;
}

.ab-cta h2 {
  font-size: 2.75rem;
  font-weight: 800;
  color: white;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.ab-cta p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.ab-cta-btns {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.ab-cta-btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.125rem 2.5rem;
  background: white;
  color: var(--puramane-navy);
  border-radius: 100px;
  font-weight: 700;
  font-size: 1.0625rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}
.ab-cta-btn-primary:hover { transform: translateY(-2px) scale(1.02); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2); }
.ab-cta-btn-primary:active { transform: scale(0.97); }

.ab-cta-btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.125rem 2.5rem;
  background: transparent;
  color: rgba(255, 255, 255, 0.9);
  border: 2px solid rgba(255, 255, 255, 0.25);
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.ab-cta-btn-secondary:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.6); }

/* ========== RESPONSIVE — 1280px+ ========== */
@media (min-width: 1280px) {
  .ab-hero h1 { font-size: 4rem; }
  .ab-gallery-grid { gap: 1.5rem; }
}

/* ========== RESPONSIVE — 1024-1279px ========== */
@media (min-width: 1024px) and (max-width: 1279px) {
  .ab-hero h1 { font-size: 3rem; }
  .ab-hero-grid { gap: 3rem; }
  .ab-eco-grid { gap: 3rem; }
  .ab-tech-grid { gap: 3rem; }
  .ab-tech-title { font-size: 1.75rem; }
  .ab-eco-price { font-size: 3.5rem; }
}

/* ========== RESPONSIVE — 769-1023px (TABLET) ========== */
@media (min-width: 769px) and (max-width: 1023px) {
  .ab-hero { padding: 4rem 0 3rem; }
  .ab-hero-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .ab-hero h1 { font-size: 2.5rem; }
  .ab-hero-subtitle { font-size: 1rem; }
  .ab-hero-features { gap: 1rem; }

  .ab-benefits-grid { gap: 1.25rem; }
  .ab-benefit-card { padding: 2rem 1.5rem; }

  .ab-eco-glass { padding: 2.5rem; }
  .ab-eco-grid { gap: 2rem; }
  .ab-eco-price { font-size: 3rem; }
  .ab-eco-title { font-size: 1.75rem; }

  .ab-reasons-grid { gap: 1.5rem; }

  .ab-tech-grid { gap: 2rem; }
  .ab-tech-title { font-size: 1.75rem; }

  .ab-timeline-title { font-size: 1.75rem; }

  .ab-gallery-grid { gap: 1rem; }

  .ab-cta h2 { font-size: 2.25rem; }
}

/* ========== RESPONSIVE — MOBILE (max 768px) ========== */
@media (max-width: 768px) {
  .ab-hero { padding: 2.5rem 0 3rem; }
  .ab-hero::before, .ab-hero::after { display: none; }

  .ab-hero-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    padding: 0 1.25rem;
  }

  .ab-hero-image { order: -1; }
  .ab-hero-image img { max-width: 100%; border-radius: 1rem; }
  .ab-hero-content { animation: abFadeInUp 0.7s ease-out; }
  .ab-hero h1 { font-size: 2.25rem; }
  .ab-hero-subtitle { font-size: 1rem; }

  .ab-hero-features { flex-direction: column; gap: 0.75rem; }
  .ab-hero-btns { flex-direction: column; }
  .ab-btn-primary, .ab-btn-secondary { width: 100%; justify-content: center; }

  .ab-rating-badge { position: relative; bottom: auto; left: auto; transform: none; margin-top: 1rem; justify-content: center; }

  /* Benefits */
  .ab-benefits { padding: 3rem 0; }
  .ab-benefits-grid { grid-template-columns: 1fr; gap: 1rem; padding: 0 1.25rem; }
  .ab-benefit-card { padding: 1.5rem; display: flex; gap: 1rem; align-items: flex-start; text-align: left; }
  .ab-benefit-icon { margin: 0; flex-shrink: 0; width: 3.5rem; height: 3.5rem; }

  /* Eco */
  .ab-eco { padding: 3rem 0; }
  .ab-eco-card { padding: 0 1.25rem; }
  .ab-eco-glass { padding: 2rem; }
  .ab-eco-grid { grid-template-columns: 1fr; gap: 2rem; }
  .ab-eco-price { font-size: 3rem; }
  .ab-eco-title { font-size: 1.5rem; }
  .ab-eco-stats { flex-direction: column; text-align: center; gap: 0.5rem; }

  /* Reasons */
  .ab-reasons { padding: 3rem 0; }
  .ab-reasons-title { font-size: 1.5rem; }
  .ab-reasons-grid { grid-template-columns: 1fr; gap: 1.25rem; padding: 0 1.25rem; }
  .ab-reasons-header { margin-bottom: 2rem; padding: 0 1.25rem; }

  /* Technology */
  .ab-tech { padding: 3rem 0; }
  .ab-tech-grid { grid-template-columns: 1fr; gap: 2rem; padding: 0 1.25rem; }
  .ab-tech-title { font-size: 1.5rem; }
  .ab-tech-stats { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }
  .ab-tech-stat { padding: 1rem; }
  .ab-tech-stat-value { font-size: 1.375rem; }

  /* Timeline */
  .ab-timeline { padding: 3rem 0; }
  .ab-timeline-title { font-size: 1.5rem; margin-bottom: 2.5rem; }
  .ab-timeline-container { padding: 0 1.25rem; }
  .ab-timeline-container::before { left: 1.5rem; transform: none; }

  .ab-timeline-item {
    flex-direction: row !important;
    text-align: left !important;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-left: 0;
  }

  .ab-timeline-dot {
    width: 2.5rem;
    height: 2.5rem;
    font-size: 0.75rem;
  }

  .ab-timeline-content {
    max-width: none;
    flex: 1;
    padding: 1.25rem;
  }

  /* Gallery */
  .ab-gallery { padding: 3rem 0; }
  .ab-gallery-title { font-size: 1.375rem; padding: 0 1.25rem; }
  .ab-gallery-grid { grid-template-columns: 1fr 1fr; gap: 0.75rem; padding: 0 1.25rem; }

  /* CTA */
  .ab-cta { padding: 3.5rem 0; }
  .ab-cta::before { display: none; }
  .ab-cta h2 { font-size: 1.75rem; }
  .ab-cta p { font-size: 1rem; }
  .ab-cta-btns { flex-direction: column; }
  .ab-cta-btn-primary, .ab-cta-btn-secondary { width: 100%; justify-content: center; }
}

/* ========== RESPONSIVE — SMALL MOBILE (max 480px) ========== */
@media (max-width: 480px) {
  .ab-hero h1 { font-size: 1.875rem; }
  .ab-eco-price { font-size: 2.5rem; }
  .ab-gallery-grid { grid-template-columns: 1fr; }
  .ab-tech-stats { grid-template-columns: 1fr; }
  .ab-tech-stat-value { font-size: 1.25rem; }
  .ab-cta h2 { font-size: 1.5rem; }
  .ab-timeline-content { padding: 1rem; }
  .ab-timeline-step-title { font-size: 0.9375rem; }
  .ab-timeline-step-desc { font-size: 0.8125rem; }
}