/* ========================================
   CSS VARIABLES - KUKIRIN IDENTITY
   ======================================== */

:root {
  /* KuKirin Brand Colors */
  --primary-red: #FF4500;
  --primary-red-hover: #D63600;
  --carbon-black: #050505;
  --titanium-white: #FFFFFF;
  
  /* Neutral Scale */
  --neutral-900: #111111;
  --neutral-700: #404040;
  --neutral-600: #666666;
  --neutral-500: #888888;
  --neutral-400: #AAAAAA;
  --neutral-300: #CCCCCC;
  --neutral-200: #E5E5E5;
  --neutral-100: #F0F0F0;
  --neutral-50: #F8F9FA;
  
  /* Semantic Colors */
  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;
  
  /* Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Spacing (4px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 20px rgba(255, 69, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

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

body {
  font-family: var(--font-body);
  line-height: 1.6;
  color: var(--neutral-900);
  background-color: var(--titanium-white);
  overflow-x: hidden;
}

img {
  max-width: 110%;
  height: auto;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-fast);
}

ul {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--neutral-900);
}

h1 {
  font-size: clamp(40px, 5vw, 64px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 600;
}

p {
  font-size: 16px;
  line-height: 1.6;
  color: var(--neutral-600);
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-16);
}

.section-title {
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.section-subtitle {
  font-size: 18px;
  color: var(--neutral-600);
  max-width: 600px;
  margin: 0 auto;
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: 16px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-sm);
  transition: all var(--transition-normal);
  cursor: pointer;
  text-decoration: none;
  min-height: 56px;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--primary-red);
  color: var(--titanium-white);
  border-color: var(--primary-red);
}

.btn-primary:hover {
  background: var(--primary-red-hover);
  border-color: var(--primary-red-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: transparent;
  color: var(--neutral-900);
  border-color: var(--neutral-900);
}

.btn-secondary:hover {
  background: var(--neutral-900);
  color: var(--titanium-white);
}

.btn-outline {
  background: transparent;
  color: var(--neutral-900);
  border-color: var(--neutral-200);
}

.btn-outline:hover {
  background: var(--neutral-100);
  border-color: var(--neutral-900);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: 14px;
  min-height: 40px;
}

/* ========================================
   NAVIGATION
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--neutral-200);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
  min-height: 80px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.brand-logo {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 800;
  color: var(--neutral-900);
}

.brand-service {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-link {
  font-weight: 500;
  color: var(--neutral-700);
  position: relative;
  padding: var(--space-2) 0;
}

.nav-link:hover {
  color: var(--neutral-900);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-red);
  transition: width var(--transition-normal);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.mobile-menu-toggle {
  display: none;
  font-size: 24px;
  color: var(--neutral-700);
  cursor: pointer;
}

/* ========================================
   HERO SECTION
   ======================================== */

.hero {
  background: var(--carbon-black);
  background-image: 
    radial-gradient(circle at 30% 70%, rgba(255, 69, 0, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 69, 0, 0.05) 0%, transparent 50%);
  color: var(--titanium-white);
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: center;
  max-width: 1280px;
  margin: 0 auto;
  padding: var(--space-24) var(--space-6);
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  font-size: 55px; 
  color: var(--titanium-white);
  margin-bottom: var(--space-6);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 20px;
  color: var(--neutral-300);
  margin-bottom: var(--space-8);
  line-height: 1.7;
}

.hero-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--neutral-300);
  font-weight: 500;
}

.feature-item i {
  color: var(--primary-red);
  font-size: 18px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-image {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.scooter-showcase {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.scooter-main {
  width: 110%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.floating-stats {
  position: absolute;
  top: var(--space-8);
  right: var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stat {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  text-align: center;
  min-width: 80px;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-red);
}

.stat-label {
  font-size: 12px;
  color: var(--neutral-300);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========================================
   SERVICES SECTION
   ======================================== */

.services {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: var(--space-8);
}

.service-card {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  text-align: center;
  transition: all var(--transition-normal);
  border: 1px solid var(--neutral-200);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--primary-red);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-red);
}

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

.service-icon {
  width: 80px;
  height: 80px;
  background: linear-gradient(135deg, var(--primary-red), var(--primary-red-hover));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-6);
  color: var(--titanium-white);
  font-size: 32px;
}

.service-card h3 {
  margin-bottom: var(--space-4);
  font-size: 24px;
}

.service-card p {
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.service-price {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-red);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========================================
   MODELS SECTION
   ======================================== */

.models {
  padding: var(--space-24) 0;
}

.models-filter {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.filter-btn {
  padding: var(--space-3) var(--space-6);
  background: var(--titanium-white);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  color: var(--neutral-700);
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--primary-red);
  border-color: var(--primary-red);
  color: var(--titanium-white);
}

.models-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.model-card {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
  transition: all var(--transition-normal);
  border: 2px solid var(--neutral-200);
  cursor: pointer;
  position: relative;
}

.model-card:hover {
  border-color: var(--primary-red);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.model-card::after {
  content: '✓';
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 24px;
  height: 24px;
  background: var(--success);
  color: var(--titanium-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.model-card:hover::after {
  opacity: 1;
}

.model-image {
  width: 100%;
  height: 160px;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.model-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.model-card h3 {
  margin-bottom: var(--space-2);
  font-size: 20px;
}

.model-card p {
  margin-bottom: var(--space-4);
  font-size: 14px;
  color: var(--neutral-600);
}

.model-price {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-red);
  font-size: 18px;
}

/* ========================================
   PROCESS SECTION
   ======================================== */

.process {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.process-timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: 800px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  gap: var(--space-6);
  align-items: flex-start;
  position: relative;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 30px;
  top: 80px;
  width: 2px;
  height: 60px;
  background: var(--neutral-200);
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary-red);
  color: var(--titanium-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  flex-shrink: 0;
}

.step-content {
  flex: 1;
  background: var(--titanium-white);
  padding: var(--space-6);
  border-radius: var(--radius-md);
  border: 1px solid var(--neutral-200);
  box-shadow: var(--shadow-sm);
}

.step-content h3 {
  margin-bottom: var(--space-3);
  font-size: 22px;
}

.step-content p {
  margin-bottom: var(--space-4);
  line-height: 1.7;
}

.step-time {
  display: inline-block;
  background: var(--neutral-100);
  color: var(--neutral-700);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ========================================
   BUDGET CALCULATOR
   ======================================== */

.budget-calculator {
  padding: var(--space-24) 0;
}

.calculator-container {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: var(--space-12);
  align-items: start;
}

.calculator-steps {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-12);
  position: relative;
}

.calculator-steps::before {
  content: '';
  position: absolute;
  top: 30px;
  left: 60px;
  right: 60px;
  height: 2px;
  background: var(--neutral-200);
  z-index: 1;
}

.step-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  position: relative;
  z-index: 2;
}

.step-circle {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--neutral-200);
  color: var(--neutral-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
  transition: all var(--transition-normal);
}

.step-indicator.active .step-circle {
  background: var(--primary-red);
  color: var(--titanium-white);
}

.step-indicator.completed .step-circle {
  background: var(--success);
  color: var(--titanium-white);
}

.step-indicator span {
  font-size: 14px;
  font-weight: 600;
  color: var(--neutral-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.step-indicator.active span {
  color: var(--neutral-900);
}

.calculator-content {
  background: var(--neutral-50);
  border-radius: var(--radius-md);
  padding: var(--space-12);
  min-height: 500px;
}

.calculator-step {
  display: none;
}

.calculator-step.active {
  display: block;
}

.calculator-step h3 {
  margin-bottom: var(--space-8);
  text-align: center;
}

.model-selector,
.issue-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.model-option,
.issue-option {
  background: var(--titanium-white);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.model-option:hover,
.issue-option:hover {
  border-color: var(--primary-red);
  background: rgba(255, 69, 0, 0.02);
}

.model-option.selected,
.issue-option.selected {
  border-color: var(--primary-red);
  background: rgba(255, 69, 0, 0.05);
}

.model-icon {
  width: 40px;
  height: 40px;
  background: var(--primary-red);
  color: var(--titanium-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.issue-option i {
  font-size: 32px;
  color: var(--primary-red);
  margin-bottom: var(--space-2);
}

.issue-option span {
  font-weight: 600;
  color: var(--neutral-900);
}

.issue-option small {
  font-size: 12px;
  color: var(--neutral-600);
  margin-top: var(--space-1);
}

.details-form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-6);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-2);
  color: var(--neutral-900);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  transition: border-color var(--transition-fast);
  background: var(--titanium-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-red);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.radio-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  padding: var(--space-3);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.radio-label:hover {
  background: var(--neutral-100);
}

.radio-label input[type="radio"] {
  display: none;
}

.radio-custom {
  width: 20px;
  height: 20px;
  border: 2px solid var(--neutral-300);
  border-radius: 50%;
  position: relative;
  transition: all var(--transition-fast);
}

.radio-label input[type="radio"]:checked + .radio-custom {
  border-color: var(--primary-red);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  background: var(--primary-red);
  border-radius: 50%;
}

.budget-result {
  text-align: center;
}

.budget-breakdown {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  margin: var(--space-6) 0;
  border: 1px solid var(--neutral-200);
}

.budget-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--neutral-100);
}

.budget-item:last-child {
  border-bottom: none;
}

.budget-item .price {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--neutral-900);
}

.budget-item .price.discount {
  color: var(--success);
}

.budget-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) 0;
  border-top: 2px solid var(--neutral-200);
  margin-top: var(--space-4);
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 700;
}

.total-price {
  color: var(--primary-red);
  font-size: 28px;
}

.budget-notes {
  background: var(--neutral-100);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  margin: var(--space-6) 0;
  font-size: 14px;
  color: var(--neutral-600);
}

.budget-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.calculator-sidebar {
  position: sticky;
  top: 120px;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.summary-card {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  border: 1px solid var(--neutral-200);
}

.summary-card h4 {
  margin-bottom: var(--space-4);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-900);
}

.summary-item {
  display: flex;
  justify-content: space-between;
  margin-bottom: var(--space-3);
  font-size: 14px;
}

.summary-item span:first-child {
  color: var(--neutral-600);
}

.summary-total {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--neutral-200);
  font-weight: 700;
  font-family: var(--font-heading);
}

.contact-info {
  background: var(--primary-red);
  color: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  text-align: center;
}

.contact-info h4 {
  margin-bottom: var(--space-3);
  color: var(--titanium-white);
}

.contact-info p {
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.9);
  font-size: 14px;
}

/* ========================================
   TRACKING SECTION
   ======================================== */

.tracking {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.tracking-container {
  max-width: 800px;
  margin: 0 auto;
}

.tracking-search {
  text-align: center;
  margin-bottom: var(--space-12);
}

.tracking-search h3 {
  margin-bottom: var(--space-6);
}

.search-form {
  display: flex;
  gap: var(--space-4);
  max-width: 500px;
  margin: 0 auto;
}

.search-form input {
  flex: 1;
  padding: var(--space-4);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  font-size: 16px;
}

.search-form input:focus {
  outline: none;
  border-color: var(--primary-red);
}

.tracking-result {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  border: 1px solid var(--neutral-200);
}

.ticket-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--neutral-200);
}

.ticket-info h4 {
  margin: 0;
  font-family: var(--font-mono);
  color: var(--neutral-900);
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.status-received {
  background: #EFF6FF;
  color: #1E40AF;
}

.status-in-progress {
  background: #FFF7ED;
  color: #9A3412;
}

.status-completed {
  background: #ECFDF5;
  color: #065F46;
}

.tracking-timeline {
  margin-bottom: var(--space-8);
}

.timeline-item {
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 20px;
  top: 50px;
  width: 2px;
  height: 40px;
  background: var(--neutral-200);
}

.timeline-item.completed::after {
  background: var(--success);
}

.timeline-icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--neutral-200);
  color: var(--neutral-500);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all var(--transition-normal);
}

.timeline-item.active .timeline-icon {
  background: var(--primary-red);
  color: var(--titanium-white);
  animation: pulse 2s infinite;
}

.timeline-item.completed .timeline-icon {
  background: var(--success);
  color: var(--titanium-white);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.timeline-content h5 {
  margin-bottom: var(--space-2);
  font-size: 16px;
}

.timeline-content p {
  margin-bottom: var(--space-2);
  font-size: 14px;
}

.timeline-date {
  font-size: 12px;
  color: var(--neutral-500);
  font-family: var(--font-mono);
}

.ticket-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid var(--neutral-200);
}

.detail-group h5 {
  margin-bottom: var(--space-3);
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--neutral-700);
}

.detail-group p {
  margin-bottom: var(--space-2);
  font-size: 14px;
  color: var(--neutral-600);
}

/* ========================================
   TESTIMONIALS SECTION
   ======================================== */

.testimonials {
  padding: var(--space-24) 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
}

.testimonial-card {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-normal);
  position: relative;
}

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

.testimonial-rating {
  color: #FFD700;
  margin-bottom: var(--space-4);
  font-size: 18px;
}

.testimonial-text {
  font-style: italic;
  line-height: 1.7;
  margin-bottom: var(--space-6);
  color: var(--neutral-700);
}

.testimonial-author strong {
  display: block;
  color: var(--neutral-900);
  font-weight: 600;
}

.testimonial-author span {
  color: var(--neutral-500);
  font-size: 14px;
}

/* ========================================
   INFO SECTIONS
   ======================================== */

.info-sections {
  padding: var(--space-24) 0;
  background: var(--neutral-50);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
}

.info-card {
  background: var(--titanium-white);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-normal);
}

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

.info-card h3 {
  margin-bottom: var(--space-4);
  font-size: 22px;
}

.info-card p {
  margin-bottom: var(--space-6);
  line-height: 1.7;
}

.info-card ul {
  list-style: none;
}

.info-card li {
  position: relative;
  padding-left: var(--space-6);
  margin-bottom: var(--space-3);
  color: var(--neutral-600);
  line-height: 1.6;
}

.info-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--success);
  font-weight: 700;
}

/* ========================================
   CONTACT SECTION
   ======================================== */

.contact {
  padding: var(--space-24) 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.contact-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
}

.contact-item i {
  width: 50px;
  height: 50px;
  background: var(--primary-red);
  color: var(--titanium-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-item h4 {
  margin-bottom: var(--space-2);
  font-size: 18px;
}

.contact-item p {
  margin-bottom: var(--space-2);
  color: var(--neutral-600);
}

.contact-item a {
  color: var(--primary-red);
  font-weight: 600;
}

.contact-item small {
  color: var(--neutral-500);
  font-size: 14px;
}

.contact-form {
  background: var(--neutral-50);
  border-radius: var(--radius-md);
  padding: var(--space-8);
}

.contact-form .form-group {
  margin-bottom: var(--space-6);
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: var(--space-4);
  border: 2px solid var(--neutral-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 16px;
  background: var(--titanium-white);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--primary-red);
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
  background: var(--carbon-black);
  color: var(--neutral-300);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-16);
  margin-bottom: var(--space-12);
}

.footer-brand .brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.footer-brand .brand-logo {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 800;
  color: var(--titanium-white);
}

.footer-brand .brand-service {
  font-size: 14px;
  color: var(--primary-red);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.footer-brand p {
  margin-bottom: var(--space-6);
  line-height: 1.7;
  color: var(--neutral-400);
}

.social-links {
  display: flex;
  gap: var(--space-4);
}

.social-links a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--neutral-300);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-normal);
}

.social-links a:hover {
  background: var(--primary-red);
  color: var(--titanium-white);
  transform: translateY(-2px);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}

.link-group h4 {
  color: var(--titanium-white);
  margin-bottom: var(--space-4);
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.link-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.link-group a {
  color: var(--neutral-400);
  font-size: 14px;
  transition: color var(--transition-fast);
}

.link-group a:hover {
  color: var(--titanium-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-8);
}

.footer-bottom-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer-bottom p {
  font-size: 14px;
  color: var(--neutral-500);
  margin: 0;
}

/* ========================================
   WHATSAPP FLOAT
   ======================================== */

.whatsapp-float {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 1000;
  animation: bounce 2s infinite;
}

.whatsapp-float a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: #25D366;
  color: var(--titanium-white);
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
}

.whatsapp-float a:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow-glow);
}

.whatsapp-float i {
  font-size: 24px;
}

.whatsapp-float span {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */

@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-4);
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--space-12);
    text-align: center;
  }
  
  .calculator-container {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .calculator-sidebar {
    position: static;
    order: -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --space-24: 64px;
    --space-16: 48px;
    --space-12: 32px;
  }
  
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .hero {
    min-height: auto;
    padding: var(--space-24) 0;
  }
  
  .hero-features {
    justify-content: center;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .floating-stats {
    position: static;
    display: flex;
    justify-content: center;
    margin-top: var(--space-8);
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .models-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
  
  .process-step {
    flex-direction: column;
    text-align: center;
  }
  
  .process-step::after {
    display: none;
  }
  
  .calculator-steps {
    display: none;
  }
  
  .model-selector,
  .issue-selector {
    grid-template-columns: 1fr;
  }
  
  .search-form {
    flex-direction: column;
  }
  
  .ticket-details {
    grid-template-columns: 1fr;
  }
  
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  
  .info-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom-content {
    flex-direction: column;
    text-align: center;
  }
  
  .whatsapp-float span {
    display: none;
  }
  
  .whatsapp-float {
    right: var(--space-4);
    bottom: var(--space-4);
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }
  
  .hero-container {
    padding: var(--space-16) var(--space-3);
  }
  
  .nav-container {
    padding: var(--space-3);
  }
  
  .service-card,
  .model-card,
  .testimonial-card,
  .info-card {
    padding: var(--space-4);
  }
  
  .contact-form {
    padding: var(--space-4);
  }
  
  .calculator-content {
    padding: var(--space-4);
  }
}

/* ========================================
   ANIMATIONS & INTERACTIONS
   ======================================== */

@media (prefers-reduced-motion: no-preference) {
  .service-card,
  .model-card,
  .testimonial-card,
  .info-card {
    animation: fadeInUp 0.6s ease forwards;
  }
  
  .service-card:nth-child(1) { animation-delay: 0.1s; }
  .service-card:nth-child(2) { animation-delay: 0.2s; }
  .service-card:nth-child(3) { animation-delay: 0.3s; }
  .service-card:nth-child(4) { animation-delay: 0.4s; }
  .service-card:nth-child(5) { animation-delay: 0.5s; }
  .service-card:nth-child(6) { animation-delay: 0.6s; }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Focus styles for accessibility */
.btn:focus,
input:focus,
select:focus,
textarea:focus,
.nav-link:focus {
  outline: 2px solid var(--primary-red);
  outline-offset: 2px;
}

/* Print styles */
@media print {
  .navbar,
  .whatsapp-float,
  .hero-cta,
  .budget-actions {
    display: none;
  }
  
  .hero {
    background: var(--titanium-white);
    color: var(--neutral-900);
  }
  
  .hero-title {
    color: var(--neutral-900);
  }
}