/* ================================
   ARAÇ DEĞER KAYBI WEB SİTESİ
   Premium White Design with Green Accents
   ================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Green Palette - Premium & Trustworthy */
  --primary-green: #10b981;
  --primary-green-dark: #059669;
  --primary-green-light: #34d399;
  --secondary-green: #6ee7b7;
  --green-50: #f0fdf4;
  --green-100: #dcfce7;
  --green-200: #bbf7d0;
  --green-600: #16a34a;
  --green-700: #15803d;
  --green-800: #166534;
  --green-900: #14532d;
  
  /* Neutral Colors - White Base */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  
  /* Status Colors */
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Poppins', 'Inter', sans-serif;
  
  /* Shadows - Sophisticated */
  --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-green: 0 10px 25px -5px rgba(16, 185, 129, 0.3);
  --shadow-green-lg: 0 20px 40px -10px rgba(16, 185, 129, 0.4);
  
  /* Borders */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Spacing */
  --section-padding: 120px;
  --container-padding: 24px;
}

/* ================================
   GLOBAL STYLES - Premium Base
   ================================ */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
  font-weight: 400;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--gray-900);
  text-align: center;
  margin-bottom: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  position: relative;
  display: inline-block;
  width: 100%;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
  border-radius: var(--border-radius-full);
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  text-align: center;
  margin-bottom: 64px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.8;
  font-weight: 400;
}

/* ================================
   HEADER & NAVIGATION - Glass Morphism
   ================================ */

.header {
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition-base);
}

.header::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-green), var(--primary-green));
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  position: relative;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--gray-900);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-base);
  letter-spacing: -0.02em;
}

.logo:hover {
  transform: translateY(-2px);
}

.logo-image {
  height: 45px;
  width: auto;
  filter: drop-shadow(0 2px 4px rgba(16, 185, 129, 0.2));
  transition: var(--transition-base);
}

.logo:hover .logo-image {
  filter: drop-shadow(0 4px 8px rgba(16, 185, 129, 0.3));
}

.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 2px 4px rgba(16, 185, 129, 0.3));
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 8px;
  align-items: center;
}

.nav-link {
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 10px 18px;
  border-radius: var(--border-radius-md);
  transition: var(--transition-base);
  position: relative;
  letter-spacing: -0.01em;
}

.nav-link:hover {
  color: var(--primary-green);
  background-color: var(--green-50);
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--primary-green);
  border-radius: var(--border-radius-full);
  transition: var(--transition-base);
}

.nav-link:hover::before {
  transform: translateX(-50%) scaleX(1);
}

.mobile-menu-toggle {
  display: none;
  background: var(--green-50);
  border: 1px solid var(--green-200);
  color: var(--primary-green);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--border-radius-md);
  transition: var(--transition-base);
}

.mobile-menu-toggle:hover {
  background: var(--green-100);
  transform: scale(1.05);
}

/* ================================
   HERO SECTION - Modern & Clean
   ================================ */

.hero {
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 100%);
  padding: 140px 0 120px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 1000px;
  height: 1000px;
  background: radial-gradient(circle, var(--green-100) 0%, transparent 70%);
  opacity: 0.5;
  animation: float 20s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--green-50) 0%, transparent 70%);
  opacity: 0.6;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 4.5rem;
  font-weight: 900;
  margin-bottom: 28px;
  line-height: 1.1;
  color: var(--gray-900);
  letter-spacing: -0.03em;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.hero-title::selection {
  background-color: var(--green-200);
  color: var(--gray-900);
}

.hero-description {
  font-size: 1.35rem;
  margin-bottom: 48px;
  color: var(--gray-600);
  line-height: 1.8;
  font-weight: 400;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 48px;
}

/* ================================
   BUTTONS - Premium Styled
   ================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 16px 32px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--border-radius-full);
  transition: var(--transition-base);
  border: none;
  cursor: pointer;
  text-align: center;
  position: relative;
  overflow: hidden;
  letter-spacing: -0.01em;
  gap: 8px;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.btn:active::before {
  width: 300px;
  height: 300px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
  color: var(--white);
  box-shadow: var(--shadow-green);
  border: 2px solid transparent;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-green-dark), var(--primary-green));
  transform: translateY(-2px);
  box-shadow: var(--shadow-green-lg);
}

.btn-secondary {
  background-color: var(--white);
  color: var(--primary-green);
  border: 2px solid var(--green-200);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
  background-color: var(--green-50);
  border-color: var(--primary-green);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-success {
  background: linear-gradient(135deg, var(--green-600), var(--primary-green));
  color: var(--white);
  box-shadow: var(--shadow-green);
}

.btn-success:hover {
  background: linear-gradient(135deg, var(--green-700), var(--green-600));
  transform: translateY(-2px);
  box-shadow: var(--shadow-green-lg);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ================================
   FEATURES SECTION - Modern Cards
   ================================ */

.features {
  background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-200), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--white);
  padding: 32px 24px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-base);
  text-align: center;
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
  transform: scaleX(0);
  transition: var(--transition-base);
  transform-origin: left;
}

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

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--green-200);
}

.feature-icon {
  font-size: 2.75rem;
  margin-bottom: 20px;
  display: inline-block;
  filter: grayscale(0.3);
  transition: var(--transition-base);
}

.feature-card:hover .feature-icon {
  filter: grayscale(0);
  transform: scale(1.1) rotate(5deg);
}

.feature-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.feature-description {
  color: var(--gray-600);
  line-height: 1.7;
  font-size: 0.9rem;
}

/* ================================
   PROCESS SECTION - Timeline Style
   ================================ */

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  margin-top: 64px;
  position: relative;
}

.step-card {
  text-align: center;
  position: relative;
  padding: 24px;
  background: var(--white);
  border-radius: var(--border-radius-lg);
  border: 2px solid var(--gray-200);
  transition: var(--transition-base);
}

.step-card:hover {
  border-color: var(--primary-green);
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.step-number {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.25rem;
  font-weight: 800;
  margin: 0 auto 24px;
  box-shadow: var(--shadow-green);
  position: relative;
  font-family: var(--font-display);
}

.step-number::before {
  content: '';
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px dashed var(--green-200);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.step-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--gray-900);
  margin-bottom: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.step-description {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ================================
   STATS SECTION - Glassmorphism
   ================================ */

.stats {
  background: linear-gradient(135deg, var(--primary-green), var(--green-600), var(--primary-green-light));
  background-size: 200% 200%;
  animation: gradientShift 10s ease infinite;
  position: relative;
  overflow: hidden;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.stats::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="rgba(255,255,255,0.05)" fill-opacity="1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,149.3C960,160,1056,160,1152,138.7C1248,117,1344,75,1392,53.3L1440,32L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>');
  opacity: 0.3;
}

.stats .container {
  position: relative;
  z-index: 1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 48px;
  text-align: center;
}

.stat-item {
  padding: 32px 24px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-radius: var(--border-radius-xl);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: var(--transition-base);
  box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

.stat-item:hover {
  transform: translateY(-8px) scale(1.03);
  background: rgba(255, 255, 255, 0.25);
  box-shadow: 0 12px 48px 0 rgba(31, 38, 135, 0.25);
}

.stat-number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  margin-bottom: 12px;
  display: block;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 1.1rem;
  color: var(--white);
  font-weight: 500;
  opacity: 0.95;
  letter-spacing: -0.01em;
}

/* ================================
   CALCULATOR SECTION - Modern Forms
   ================================ */

.calculator {
  background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}

.calculator-container {
  max-width: 800px;
  margin: 0 auto;
  background: var(--white);
  padding: 56px 48px;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
}

.calculator-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-green), var(--primary-green));
  background-size: 200% 100%;
  animation: shimmer 3s linear infinite;
}

.form-group {
  margin-bottom: 28px;
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 10px;
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

.form-input,
.form-select {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  transition: var(--transition-base);
  font-family: var(--font-primary);
  background-color: var(--white);
  color: var(--gray-900);
}

.form-input:hover,
.form-select:hover {
  border-color: var(--gray-300);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 4px var(--green-100);
  background-color: var(--white);
}

.form-input::placeholder {
  color: var(--gray-400);
}

.form-help {
  font-size: 0.85rem;
  color: var(--gray-500);
  margin-top: 8px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.result-box {
  background: linear-gradient(135deg, var(--green-50), var(--white));
  padding: 48px 40px;
  border-radius: var(--border-radius-xl);
  margin-top: 40px;
  text-align: center;
  display: none;
  border: 2px solid var(--green-200);
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.result-box::before {
  content: '🎉';
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 3rem;
  opacity: 0.2;
}

.result-box.active {
  display: block;
  animation: fadeInScale 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeInScale {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

.result-label {
  font-size: 1.1rem;
  color: var(--gray-600);
  margin-bottom: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-value {
  font-family: var(--font-display);
  font-size: 4rem;
  color: var(--primary-green);
  font-weight: 900;
  margin-bottom: 20px;
  text-shadow: 0 2px 8px rgba(16, 185, 129, 0.2);
  letter-spacing: -0.02em;
}

.result-description {
  color: var(--gray-600);
  line-height: 1.8;
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

/* ================================
   SURVEY / ANKET - Interactive Design
   ================================ */

.survey-container {
  max-width: 900px;
  margin: 0 auto;
}

.question-card {
  background: var(--white);
  padding: 48px 40px;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-lg);
  margin-bottom: 32px;
  display: none;
  border: 1px solid var(--gray-200);
}

.question-card.active {
  display: block;
  animation: slideInUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.question-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--gray-900);
  margin-bottom: 32px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.answer-options {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.answer-option {
  padding: 24px 28px;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  transition: var(--transition-base);
  background: var(--white);
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray-700);
  position: relative;
  overflow: hidden;
}

.answer-option::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary-green);
  transform: scaleY(0);
  transition: var(--transition-base);
}

.answer-option:hover {
  background: var(--green-50);
  border-color: var(--primary-green);
  transform: translateX(4px);
}

.answer-option:hover::before {
  transform: scaleY(1);
}

.answer-option.selected {
  background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
  color: var(--white);
  border-color: var(--primary-green);
  box-shadow: var(--shadow-green);
  transform: scale(1.02);
}

.answer-option.selected::before {
  transform: scaleY(1);
  background: var(--white);
}

.progress-bar {
  width: 100%;
  height: 12px;
  background: var(--gray-200);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin-bottom: 48px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.06);
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary-green), var(--secondary-green));
  transition: width 0.5s cubic-bezier(0.65, 0, 0.35, 1);
  border-radius: var(--border-radius-full);
  box-shadow: 0 2px 8px rgba(16, 185, 129, 0.4);
}

/* ================================
   FOOTER - Modern & Clean
   ================================ */

.footer {
  background: linear-gradient(180deg, var(--gray-900), var(--gray-800));
  color: var(--gray-300);
  padding: 80px 0 32px;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-600), transparent);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 48px;
  margin-bottom: 48px;
}

.footer-section h3 {
  margin-bottom: 24px;
  font-size: 1.25rem;
  color: var(--white);
  font-weight: 700;
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

.footer-section p {
  line-height: 1.8;
  color: var(--gray-400);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition-base);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
}

.footer-links a::before {
  content: '→';
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--transition-base);
}

.footer-links a:hover {
  color: var(--primary-green);
  transform: translateX(4px);
}

.footer-links a:hover::before {
  opacity: 1;
  transform: translateX(0);
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--gray-700);
  color: var(--gray-500);
  font-size: 0.95rem;
}

/* ================================
   TESTIMONIALS - Premium Cards
   ================================ */

.testimonials {
  background: linear-gradient(180deg, var(--white), var(--gray-50));
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background: var(--white);
  padding: 40px 36px;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-200);
  position: relative;
  transition: var(--transition-base);
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 24px;
  left: 24px;
  font-size: 5rem;
  color: var(--green-100);
  font-family: Georgia, serif;
  line-height: 1;
  z-index: 0;
}

.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--green-200);
}

.testimonial-text {
  font-style: italic;
  color: var(--gray-600);
  margin-bottom: 24px;
  line-height: 1.9;
  font-size: 1rem;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  font-weight: 700;
  color: var(--gray-900);
  font-family: var(--font-display);
  display: flex;
  align-items: center;
  gap: 12px;
  position: relative;
  z-index: 1;
}

.testimonial-author::before {
  content: '';
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
  border-radius: 50%;
  display: inline-block;
}

/* ================================
   FAQ / SSS - Accordion Style
   ================================ */

.faq-container {
  max-width: 1000px;
  margin: 0 auto;
}

.faq-item {
  background: var(--white);
  margin-bottom: 16px;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: var(--transition-base);
}

.faq-item:hover {
  border-color: var(--green-200);
}

.faq-item.active {
  box-shadow: var(--shadow-md);
  border-color: var(--primary-green);
}

.faq-question {
  width: 100%;
  padding: 24px 28px;
  background: var(--white);
  border: none;
  text-align: left;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-base);
  gap: 20px;
}

.faq-item.active .faq-question {
  background: var(--green-50);
  color: var(--primary-green);
}

.faq-question:hover {
  background: var(--gray-50);
}

.faq-icon {
  font-size: 1.5rem;
  transition: var(--transition-base);
  color: var(--primary-green);
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-50);
  border-radius: var(--border-radius-md);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--primary-green);
  color: var(--white);
}

.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 28px;
  color: var(--gray-600);
  line-height: 1.9;
  font-size: 0.98rem;
}

.faq-item.active .faq-answer {
  max-height: 1000px;
  padding: 0 28px 28px 28px;
}

/* ================================
   CONTACT FORM - Two Column Layout
   ================================ */

.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-info {
  background: linear-gradient(135deg, var(--green-50), var(--white));
  padding: 48px 40px;
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--green-200);
  box-shadow: var(--shadow-md);
  position: sticky;
  top: 100px;
}

.contact-item {
  display: flex;
  align-items: start;
  gap: 20px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--green-100);
}

.contact-item:last-child {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.contact-icon {
  font-size: 1.75rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-green), var(--secondary-green));
  color: var(--white);
  border-radius: var(--border-radius-md);
  flex-shrink: 0;
  box-shadow: var(--shadow-green);
}

.contact-form {
  background: var(--white);
  padding: 48px 40px;
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
}

.form-textarea {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  font-family: var(--font-primary);
  min-height: 160px;
  resize: vertical;
  transition: var(--transition-base);
  line-height: 1.6;
}

.form-textarea:hover {
  border-color: var(--gray-300);
}

.form-textarea:focus {
  outline: none;
  border-color: var(--primary-green);
  box-shadow: 0 0 0 4px var(--green-100);
  background-color: var(--white);
}

.form-textarea::placeholder {
  color: var(--gray-400);
}

/* ================================
   ANIMATIONS
   ================================ */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ================================
   ALERT & NOTIFICATION - Modern Style
   ================================ */

.alert {
  padding: 18px 24px;
  border-radius: var(--border-radius-lg);
  margin-bottom: 24px;
  display: flex;
  align-items: start;
  gap: 14px;
  border: 1px solid;
  font-size: 0.95rem;
  line-height: 1.7;
  box-shadow: var(--shadow-sm);
  animation: slideInDown 0.3s ease;
}

@keyframes slideInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.alert::before {
  content: '';
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-success {
  background-color: var(--green-50);
  color: var(--green-800);
  border-color: var(--green-200);
}

.alert-success::before {
  content: '✓';
  background: var(--success);
  color: white;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-warning {
  background-color: #fffbeb;
  color: #92400e;
  border-color: #fde68a;
}

.alert-warning::before {
  content: '⚠';
  background: var(--warning);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-danger {
  background-color: #fef2f2;
  color: #991b1b;
  border-color: #fecaca;
}

.alert-danger::before {
  content: '✕';
  background: var(--danger);
  color: white;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.alert-info {
  background-color: #eff6ff;
  color: #1e40af;
  border-color: #bfdbfe;
}

.alert-info::before {
  content: 'ℹ';
  background: var(--info);
  color: white;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ================================
   RESPONSIVE DESIGN - Mobile Optimized
   ================================ */

@media (max-width: 1024px) {
  :root {
    --section-padding: 80px;
  }
  
  .contact-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .contact-info {
    position: static;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 60px;
    --container-padding: 20px;
  }
  
  .hero {
    padding: 100px 0 80px;
  }
  
  .hero-title {
    font-size: 3rem;
  }
  
  .hero-description {
    font-size: 1.15rem;
  }
  
  .section-title {
    font-size: 2.5rem;
  }
  
  .section-subtitle {
    font-size: 1.1rem;
  }
  
  .nav-menu {
    position: fixed;
    left: -100%;
    top: 68px;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    width: 100%;
    text-align: center;
    transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 32px 20px;
    box-shadow: var(--shadow-2xl);
    border-top: 1px solid var(--gray-200);
    max-height: calc(100vh - 68px);
    overflow-y: auto;
  }
  
  .nav-menu.active {
    left: 0;
  }
  
  .nav-link {
    padding: 16px 24px;
    width: 100%;
    display: block;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }
  
  .btn {
    width: 100%;
  }
  
  .calculator-container,
  .contact-form {
    padding: 32px 24px;
  }
  
  .features-grid,
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  
  .process-steps {
    grid-template-columns: 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  
  .step-number {
    width: 70px;
    height: 70px;
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 48px;
  }
  
  .hero-title {
    font-size: 2.25rem;
  }
  
  .hero-description {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 2rem;
  }
  
  .stat-number {
    font-size: 3rem;
  }
  
  .result-value {
    font-size: 3rem;
  }
  
  .calculator-container,
  .contact-form,
  .contact-info {
    padding: 24px 20px;
  }
  
  .feature-card,
  .testimonial-card {
    padding: 32px 24px;
  }
  
  .btn {
    padding: 14px 24px;
    font-size: 0.95rem;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .question-card {
    padding: 32px 24px;
  }
  
  .question-title {
    font-size: 1.4rem;
  }
  
  .answer-option {
    padding: 18px 20px;
    font-size: 0.95rem;
  }
}

/* ================================
   UTILITY CLASSES - Comprehensive
   ================================ */

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-bold { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.font-normal { font-weight: 400; }

/* Spacing */
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mt-5 { margin-top: 48px; }

.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.mb-5 { margin-bottom: 48px; }

.px-2 { padding-left: 16px; padding-right: 16px; }
.px-3 { padding-left: 24px; padding-right: 24px; }
.px-4 { padding-left: 32px; padding-right: 32px; }

.py-2 { padding-top: 16px; padding-bottom: 16px; }
.py-3 { padding-top: 24px; padding-bottom: 24px; }
.py-4 { padding-top: 32px; padding-bottom: 32px; }

/* Display */
.hidden { display: none !important; }
.visible { display: block !important; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flex utilities */
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.gap-4 { gap: 32px; }

/* Borders */
.rounded { border-radius: var(--border-radius-md); }
.rounded-lg { border-radius: var(--border-radius-lg); }
.rounded-xl { border-radius: var(--border-radius-xl); }
.rounded-full { border-radius: var(--border-radius-full); }

/* Shadows */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Colors */
.text-primary { color: var(--primary-green); }
.text-gray { color: var(--gray-600); }
.text-dark { color: var(--gray-900); }
.text-white { color: var(--white); }

.bg-white { background-color: var(--white); }
.bg-gray { background-color: var(--gray-50); }
.bg-primary { background-color: var(--primary-green); }

/* Hover effects */
.hover-lift {
  transition: var(--transition-base);
}

.hover-lift:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

/* Smooth scrolling for anchor links */
html {
  scroll-padding-top: 80px;
}

/* Selection styling */
::selection {
  background-color: var(--green-200);
  color: var(--gray-900);
}

::-moz-selection {
  background-color: var(--green-200);
  color: var(--gray-900);
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 12px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-green);
  border-radius: var(--border-radius-full);
  border: 3px solid var(--gray-100);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-green-dark);
}

/* Loading animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Focus visible for accessibility */
*:focus-visible {
  outline: 2px solid var(--primary-green);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .header,
  .footer,
  .btn,
  .mobile-menu-toggle {
    display: none;
  }
  
  body {
    background: white;
  }
  
  .section {
    page-break-inside: avoid;
  }
}