/* =====================================================
   EV ONE AUTOMOTIVE - Premium Responsive CSS
   Dark Theme with Electric Green & Cyan Accents
   Mobile-first approach with smooth animations
   ===================================================== */

/* ============================================
   CSS VARIABLES & ROOT CONFIGURATION
   ============================================ */
:root {
  /* Color Palette */
  --primary-bg: #0a0a0a;
  --secondary-bg: #1a1a2e;
  --card-bg: #151528;
  --accent-green: #00e676;
  --accent-cyan: #00bcd4;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-muted: #707070;
  --border-color: #2a2a3e;
  --hover-overlay: rgba(0, 230, 118, 0.1);

  /* Typography */
  --font-heading: 'Kanit', 'Poppins', sans-serif;
  --font-body: 'Poppins', 'Kanit', sans-serif;
  --font-size-h1: clamp(2rem, 5vw, 3.5rem);
  --font-size-h2: clamp(1.75rem, 4vw, 2.5rem);
  --font-size-h3: clamp(1.5rem, 3vw, 2rem);
  --font-size-body: clamp(0.875rem, 2vw, 1rem);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Transitions & Animations */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;

  /* Border Radius */
  --radius-sm: 0.5rem;
  --radius-md: 1rem;
  --radius-lg: 1.5rem;
  --radius-xl: 2rem;

  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 230, 118, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 230, 118, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 230, 118, 0.12);
  --shadow-xl: 0 12px 36px rgba(0, 230, 118, 0.15);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-tooltip: 400;
}

/* ============================================
   GLOBAL STYLES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  background-color: var(--primary-bg);
  color: var(--text-primary);
  font-size: var(--font-size-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Base Styles */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
}

h1 {
  font-size: var(--font-size-h1);
}

h2 {
  font-size: var(--font-size-h2);
}

h3 {
  font-size: var(--font-size-h3);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

a {
  color: var(--accent-green);
  text-decoration: none;
  transition: color var(--transition-normal);
}

a:hover {
  color: var(--accent-cyan);
}

/* ============================================
   NAVIGATION BAR
   ============================================ */
nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background-color: transparent;
  padding: var(--spacing-lg) var(--spacing-md);
  transition: all var(--transition-normal);
}

nav.scrolled {
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-md) var(--spacing-lg);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-xl);
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: all var(--transition-normal);
}

.logo:hover {
  text-shadow: 0 0 10px var(--accent-green);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding-bottom: var(--spacing-sm);
  transition: color var(--transition-normal);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
  transition: width var(--transition-normal);
}

.nav-link:hover {
  color: var(--accent-green);
}

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

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--accent-green);
  transition: all var(--transition-normal);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transition: left var(--transition-normal);
  z-index: -1;
}

.btn:hover::before {
  left: 100%;
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--accent-green), #00c853);
  color: #000;
  box-shadow: var(--shadow-md);
}

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

/* Secondary Button */
.btn-secondary {
  background: transparent;
  color: var(--accent-cyan);
  border: 2px solid var(--accent-cyan);
}

.btn-secondary:hover {
  background: rgba(0, 188, 212, 0.1);
  transform: translateY(-2px);
}

/* Outline Button */
.btn-outline {
  background: transparent;
  color: var(--accent-green);
  border: 2px solid var(--accent-green);
}

.btn-outline:hover {
  background: rgba(0, 230, 118, 0.1);
  box-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
}

.btn-small {
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: 0.875rem;
}

.btn-large {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: 1.1rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: var(--spacing-2xl) var(--spacing-lg);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(0, 230, 118, 0.05), rgba(0, 188, 212, 0.05));
  z-index: 0;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.3;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  animation: fadeInUp 1s ease-out;
}

.hero h1 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 0 20px rgba(0, 230, 118, 0.3);
}

.hero-subtitle {
  font-size: clamp(1rem, 3vw, 1.25rem);
  color: var(--accent-cyan);
  margin-bottom: var(--spacing-2xl);
  font-weight: 300;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
  margin-top: var(--spacing-2xl);
}

/* ============================================
   SERVICE CARDS
   ============================================ */
.services-section {
  background-color: var(--primary-bg);
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1400px;
  margin: 0 auto;
}

.service-card {
  background: linear-gradient(135deg, var(--secondary-bg), var(--card-bg));
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-normal);
  cursor: pointer;
  group: card;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(0, 230, 118, 0.1), transparent);
  transition: left var(--transition-slow);
  z-index: 0;
}

.service-card:hover::before {
  left: 100%;
}

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

.service-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--accent-green), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-lg);
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   IMAGE GALLERY GRID
   ============================================ */
.gallery {
  padding: var(--spacing-3xl) var(--spacing-lg);
  background-color: var(--secondary-bg);
}

.gallery-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  group: gallery;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 230, 118, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay-text {
  color: #000;
  font-weight: 600;
  text-align: center;
  font-size: 1.1rem;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.contact-section {
  padding: var(--spacing-3xl) var(--spacing-lg);
  background-color: var(--primary-bg);
}

.contact-container {
  max-width: 600px;
  margin: 0 auto;
}

.contact-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--card-bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  transition: all var(--transition-normal);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-green);
  background-color: rgba(0, 230, 118, 0.05);
  box-shadow: 0 0 0 3px rgba(0, 230, 118, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

.form-submit {
  width: 100%;
  margin-top: var(--spacing-lg);
}

/* ============================================
   FOOTER
   ============================================ */
footer {
  background: linear-gradient(135deg, var(--secondary-bg), var(--card-bg));
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-3xl) var(--spacing-lg) var(--spacing-lg);
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--accent-green);
  margin-bottom: var(--spacing-lg);
  font-size: 1.1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-md);
}

.footer-section a {
  color: var(--text-secondary);
  transition: color var(--transition-normal);
}

.footer-section a:hover {
  color: var(--accent-green);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.section-title {
  font-size: var(--font-size-h2);
  margin-bottom: var(--spacing-2xl);
  text-align: center;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-cyan));
  margin: var(--spacing-lg) auto 0;
  border-radius: 2px;
}

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

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

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

.m-top {
  margin-top: var(--spacing-lg);
}

.m-bottom {
  margin-bottom: var(--spacing-lg);
}

.m-both {
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.p-top {
  padding-top: var(--spacing-lg);
}

.p-bottom {
  padding-bottom: var(--spacing-lg);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

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

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

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

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

@keyframes glow {
  0%, 100% {
    text-shadow: 0 0 10px rgba(0, 230, 118, 0.5);
  }
  50% {
    text-shadow: 0 0 20px rgba(0, 230, 118, 0.8);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.animate-fade-in-down {
  animation: fadeInDown 0.6s ease-out;
}

.animate-slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

.animate-glow {
  animation: glow 2s ease-in-out infinite;
}

/* ============================================
   RESPONSIVE BLEAKPOINTS
   ============================================ */

/* Tablet (768px) */
@media (max-width: 768px) {
  :root {
    --spacing-3xl: 2.5rem;
    --spacing-2xl: 2rem;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background-color: var(--secondary-bg);
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    z-index: var(--z-dropdown);
  }

  .nav-menu.active {
    display: flex;
  }

  .menu-toggle {
    display: flex;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-container {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

/* Mobile (480px) */
@media (max-width: 480px) {
  :root {
    --spacing-xl: 1rem;
    --spacing-lg: 1rem;
    --spacing-2xl: 1.5rem;
  }

  .nav-container {
    gap: var(--spacing-md);
  }

  .logo {
    font-size: 1.1rem;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  h3 {
    font-size: 1.25rem;
  }

  .hero {
    min-height: 80vh;
    padding: var(--spacing-lg);
  }

  .section {
    padding: var(--spacing-2xl) var(--spacing-md);
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: var(--spacing-lg);
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .form-input,
  .form-textarea {
    padding: var(--spacing-md);
  }

  .btn-large {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1rem;
  }
}

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
  .container {
    max-width: 1400px;
  }

  .services-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Dark mode preference (already default, but for clarity) */
@media (prefers-color-scheme: dark) {
  body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
  }
}

/* Reduced motion preference */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  nav,
  footer,
  .btn-secondary,
  .contact-section {
    display: none;
  }

  body {
    background-color: white;
    color: black;
  }
}

.service-card-image{width:100%;height:180px;border-radius:var(--radius-md);overflow:hidden;margin-bottom:var(--spacing-lg);position:relative}
.service-card-image img{width:100%;height:100%;object-fit:cover;transition:transform .3s}
.service-card:hover .service-card-image img{transform:scale(1.08)}
.about-image-wrapper{width:100%;max-width:500px;overflow:hidden;border-radius:var(--radius-lg)}