/* ============================================
   GÖKDAĞ GROUP — CORPORATE SITE STYLESHEET
   Modern 3D · Green Palette · Light Theme
   ============================================ */

/* === ROOT VARIABLES === */
:root {
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-300: #86efac;
  --green-400: #4ade80;
  --green-500: #22c55e;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;
  --bg-primary: #f8fdf5;
  --bg-secondary: #f0f9e8;
  --text-heading: #1b4332;
  --text-body: #2d3436;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.3);
}

/* === BASE RESET & GLOBALS === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--text-body);
  background-color: var(--bg-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

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

/* === NAVBAR === */
#navbar {
  background: transparent;
  backdrop-filter: none;
}

#navbar.scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 30px rgba(20, 83, 45, 0.08);
  border-bottom: 1px solid rgba(20, 83, 45, 0.05);
}

.nav-link {
  position: relative;
  color: #166534;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #22c55e, #16a34a);
  border-radius: 1px;
  transition: width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover {
  color: #14532d;
}

/* === HERO SECTION === */
.hero-section {
  position: relative;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 30%, #f8fdf5 60%, #e8f5e9 100%);
  overflow: hidden;
  perspective: 1200px;
  transform-style: preserve-3d;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 80vw;
  height: 80vw;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(21, 128, 61, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 15s ease-in-out 5s infinite reverse;
}

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

.hero-content {
  position: relative;
  z-index: 10;
}

/* === PAGE HERO (inner pages) === */
.page-hero {
  position: relative;
  padding: 10rem 0 5rem;
  background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 50%, #f0f9e8 100%);
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

/* === 3D TILT CARD === */
.tilt-card {
  perspective: 1000px;
  transform-style: preserve-3d;
}

.tilt-card-inner {
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
  transform-style: preserve-3d;
  will-change: transform;
}

.tilt-card:hover .tilt-card-inner {
  transform: rotateY(5deg) rotateX(5deg) scale(1.02);
  box-shadow: 
    0 25px 60px rgba(20, 83, 45, 0.12),
    0 10px 20px rgba(20, 83, 45, 0.08);
}

/* === 3D FLIP CARD === */
.flip-card {
  perspective: 1200px;
  height: 420px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 1.25rem;
  overflow: hidden;
}

.flip-card-back {
  transform: rotateY(180deg);
}

/* === GLASSMORPHISM === */
.glass {
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 8px 32px rgba(20, 83, 45, 0.06);
}

.glass-green {
  background: rgba(240, 253, 244, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(34, 197, 94, 0.15);
  box-shadow: 0 8px 32px rgba(20, 83, 45, 0.08);
}

/* === ANIMATED COUNTER === */
.counter-value {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(135deg, #15803d, #22c55e);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

/* === SCROLL REVEAL ANIMATIONS === */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* aliases used by generated HTML */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* stagger delays */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }
.delay-600 { transition-delay: 600ms; }
.delay-700 { transition-delay: 700ms; }
.delay-800 { transition-delay: 800ms; }

/* === FLOATING ANIMATION === */
@keyframes float {
  0%, 100% { transform: translateY(0px) rotate(0deg); }
  25% { transform: translateY(-15px) rotate(1deg); }
  50% { transform: translateY(-30px) rotate(0deg); }
  75% { transform: translateY(-15px) rotate(-1deg); }
}

@keyframes float-gentle {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-12px); }
}

.animate-float {
  animation: float-gentle 6s ease-in-out infinite;
}

.animate-float-delayed {
  animation: float-gentle 6s ease-in-out 3s infinite;
}

/* === GRADIENT TEXT === */
.gradient-text {
  background: linear-gradient(135deg, #14532d 0%, #15803d 50%, #22c55e 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-light {
  background: linear-gradient(135deg, #22c55e, #4ade80, #86efac);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* === SECTION DIVIDERS === */
.section-divider {
  position: relative;
  height: 120px;
  overflow: hidden;
}

.section-divider svg {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 120px;
}

/* === PARTNER LOGOS CAROUSEL === */
.partner-track {
  display: flex;
  gap: 4rem;
  animation: scroll-logos 30s linear infinite;
  width: max-content;
}

.partner-track:hover {
  animation-play-state: paused;
}

@keyframes scroll-logos {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 180px;
  height: 80px;
  padding: 1rem 2rem;
  background: white;
  border-radius: 1rem;
  border: 1px solid rgba(20, 83, 45, 0.08);
  box-shadow: 0 2px 10px rgba(20, 83, 45, 0.04);
  opacity: 0.7;
  transition: opacity 0.3s, transform 0.3s, box-shadow 0.3s;
  font-weight: 700;
  font-size: 1.1rem;
  color: #166534;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.partner-logo:hover {
  opacity: 1;
  transform: scale(1.05);
  box-shadow: 0 8px 25px rgba(20, 83, 45, 0.1);
}

.partner-logo .logo-icon {
  width: 32px;
  height: 32px;
  margin-right: 10px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* === PRODUCT CARDS === */
.product-card {
  border-radius: 1.25rem;
  overflow: hidden;
  background: white;
  border: 1px solid rgba(20, 83, 45, 0.06);
  box-shadow: 0 4px 20px rgba(20, 83, 45, 0.05);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  position: relative;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 1.25rem;
  padding: 1px;
  background: linear-gradient(135deg, rgba(34, 197, 94, 0), rgba(34, 197, 94, 0.3), rgba(34, 197, 94, 0));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.5s;
}

.product-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 50px rgba(20, 83, 45, 0.12);
}

.product-card:hover::before {
  opacity: 1;
}

/* === FAQ ACCORDION === */
.faq-item {
  border: 1px solid rgba(20, 83, 45, 0.08);
  border-radius: 1rem;
  overflow: hidden;
  transition: all 0.3s ease;
  background: white;
}

.faq-item:hover {
  border-color: rgba(34, 197, 94, 0.2);
  box-shadow: 0 4px 15px rgba(20, 83, 45, 0.06);
}

.faq-item.active {
  border-color: rgba(34, 197, 94, 0.3);
  box-shadow: 0 8px 30px rgba(20, 83, 45, 0.08);
}

.faq-question {
  cursor: pointer;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  color: var(--text-heading);
  transition: color 0.3s;
}

.faq-question:hover {
  color: #15803d;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1),
              padding 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 1.5rem 1.25rem;
}

.faq-chevron {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  flex-shrink: 0;
}

.faq-item.active .faq-chevron {
  transform: rotate(180deg);
}

/* === BLOG CARD === */
.blog-card {
  border-radius: 1.25rem;
  overflow: hidden;
  background: white;
  border: 1px solid rgba(20, 83, 45, 0.06);
  box-shadow: 0 4px 20px rgba(20, 83, 45, 0.04);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(20, 83, 45, 0.1);
}

.blog-card img {
  transition: transform 0.7s cubic-bezier(0.23, 1, 0.32, 1);
}

.blog-card:hover img {
  transform: scale(1.08);
}

/* === TIMELINE === */
.timeline {
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, #22c55e, #15803d, #14532d);
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-left: 2rem;
  padding-bottom: 2.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.5rem;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #22c55e;
  border: 3px solid white;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
  transform: translateX(-6.5px);
}

/* === SHIPPING OPTIONS === */
.shipping-card {
  background: white;
  border-radius: 1.25rem;
  padding: 2rem;
  text-align: center;
  border: 1px solid rgba(20, 83, 45, 0.06);
  box-shadow: 0 4px 20px rgba(20, 83, 45, 0.04);
  transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.shipping-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(20, 83, 45, 0.1);
  border-color: rgba(34, 197, 94, 0.2);
}

.shipping-icon {
  width: 64px;
  height: 64px;
  border-radius: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, #dcfce7, #bbf7d0);
  color: #15803d;
  font-size: 1.5rem;
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.shipping-card:hover .shipping-icon {
  transform: rotateY(360deg) scale(1.1);
}

/* === CTA SECTION === */
.cta-section {
  background: linear-gradient(135deg, #14532d 0%, #166534 30%, #15803d 60%, #16a34a 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(74, 222, 128, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

/* === CONTACT FORM === */
.form-input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  border: 2px solid rgba(20, 83, 45, 0.1);
  border-radius: 0.75rem;
  background: white;
  color: var(--text-body);
  font-size: 0.95rem;
  transition: all 0.3s ease;
  outline: none;
}

.form-input:focus {
  border-color: #22c55e;
  box-shadow: 0 0 0 4px rgba(34, 197, 94, 0.1);
}

.form-input::placeholder {
  color: #9ca3af;
}

/* === PRICE TABLE === */
.price-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid rgba(20, 83, 45, 0.08);
}

.price-table thead th {
  background: linear-gradient(135deg, #14532d, #166534);
  color: white;
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  text-align: left;
}

.price-table tbody td {
  padding: 0.875rem 1.5rem;
  border-bottom: 1px solid rgba(20, 83, 45, 0.06);
  font-size: 0.95rem;
}

.price-table tbody tr {
  background: white;
  transition: background 0.3s;
}

.price-table tbody tr:hover {
  background: #f0fdf4;
}

.price-table tbody tr:last-child td {
  border-bottom: none;
}

/* === DECORATIVE ELEMENTS === */
.dot-pattern {
  background-image: radial-gradient(rgba(20, 83, 45, 0.06) 1px, transparent 1px);
  background-size: 20px 20px;
}

.mesh-gradient {
  background: 
    radial-gradient(at 40% 20%, rgba(34, 197, 94, 0.08) 0px, transparent 50%),
    radial-gradient(at 80% 0%, rgba(74, 222, 128, 0.06) 0px, transparent 50%),
    radial-gradient(at 0% 50%, rgba(21, 128, 61, 0.05) 0px, transparent 50%),
    radial-gradient(at 80% 50%, rgba(34, 197, 94, 0.04) 0px, transparent 50%),
    radial-gradient(at 0% 100%, rgba(74, 222, 128, 0.06) 0px, transparent 50%);
}

/* === BADGE === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-green {
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

.badge-white {
  background: rgba(255, 255, 255, 0.2);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

/* === USAGE AREA CARD === */
.usage-card {
  position: relative;
  border-radius: 1.5rem;
  overflow: hidden;
  
  cursor: pointer;
}

.usage-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s cubic-bezier(0.23, 1, 0.32, 1);
}

.usage-card:hover img {
  transform: scale(1.12);
}

.usage-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(20, 83, 45, 0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: all 0.5s;
}

.usage-card:hover .usage-card-overlay {
  background: linear-gradient(180deg, transparent 10%, rgba(20, 83, 45, 0.9) 100%);
}

/* === FEATURE GRID CARDS === */
.feature-card {
  padding: 2rem;
  border-radius: 1.25rem;
  background: white;
  border: 1px solid rgba(20, 83, 45, 0.06);
  box-shadow: 0 2px 15px rgba(20, 83, 45, 0.04);
  transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, #22c55e, #4ade80);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s cubic-bezier(0.23, 1, 0.32, 1);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 40px rgba(20, 83, 45, 0.08);
}

.feature-card:hover::after {
  transform: scaleX(1);
}

/* === PARALLAX === */
.parallax-container {
  overflow: hidden;
  position: relative;
}

.parallax-bg {
  position: absolute;
  inset: -20%;
  background-size: cover;
  background-position: center;
  will-change: transform;
}

/* === ARTICLE CONTENT === */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}

.article-content h2 {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-heading);
  margin: 2.5rem 0 1rem;
}

.article-content h3 {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-heading);
  margin: 2rem 0 0.75rem;
}

.article-content p {
  margin-bottom: 1.25rem;
  line-height: 1.8;
  color: #374151;
}

.article-content ul {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style-type: disc;
}

.article-content ul li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
  color: #374151;
}

.article-content strong {
  color: var(--text-heading);
  font-weight: 600;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .hero-section {
    min-height: auto;
    padding: 8rem 0 4rem;
  }
  
  .counter-value {
    font-size: 2rem;
  }
  
  .flip-card {
    height: 380px;
  }
  
  .usage-card {
    
  }
  
  .partner-logo {
    min-width: 150px;
    padding: 0.75rem 1.25rem;
    font-size: 0.95rem;
  }
  
  .page-hero {
    padding: 8rem 0 3rem;
  }
}

@media (max-width: 480px) {
  .flip-card {
    height: 360px;
  }
}

/* === CUSTOM SCROLLBAR === */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #f0fdf4;
}

::-webkit-scrollbar-thumb {
  background: #86efac;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #22c55e;
}

/* === LOADING ANIMATION === */
.page-loader {
  position: fixed;
  inset: 0;
  background: #f8fdf5;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s, visibility 0.5s;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid #dcfce7;
  border-top-color: #22c55e;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === SELECTION COLOR === */
::selection {
  background: rgba(34, 197, 94, 0.2);
  color: #14532d;
}

/* === SMOOTH IMAGE LOADING === */
img {
  opacity: 1;
  transition: opacity 0.5s ease;
}

img[loading="lazy"] {
  opacity: 0;
}

img[loading="lazy"].loaded {
  opacity: 1;
}