/* CSS VARIABLES */
:root {
  /* Color Palette */
  --bg-primary: #f7fbff;
  --bg-secondary: #e8f4ff;
  --bg-card: rgba(255, 255, 255, 0.9);
  --accent-primary: #00aaff;
  --accent-secondary: #00d4ff;
  --accent-third: #2dd4bf;
  --text-primary: #1f2937;
  --text-secondary: #6b7280;
  --border-glow: rgba(0, 170, 255, 0.3);
  
  /* Spacing System */
  --space-mobile: 50px;
  --space-tablet: 70px;
  --space-desktop: 100px;
  --container-max: 1400px;
  
  /* Borders & Shadows */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-pill: 50px;
  --shadow-soft: 0 10px 30px rgba(31, 41, 55, 0.08);
  --shadow-hover: 0 15px 40px rgba(0, 170, 255, 0.15);
  
  /* Typography */
  --font-main: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  color: var(--text-primary);
  background-color: var(--bg-primary);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-sm);
}

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

ul {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* LAYOUT & CONTAINERS */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

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

.section-bg-alt {
  background-color: var(--bg-secondary);
}

.text-center {
  text-center;
}

.section-title {
  text-align: center;
  margin-bottom: 3rem;
}

.section-title h2 {
  font-size: 2.5rem;
  font-weight: 800;
}

.section-title p {
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.125rem;
}

/* GRIDS */
.grid {
  display: grid;
  gap: 30px;
}

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

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

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

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

/* BUTTONS */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  text-align: center;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(0, 170, 255, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0, 170, 255, 0.4);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.btn-secondary:hover {
  background: var(--accent-primary);
  color: #ffffff;
  transform: translateY(-3px);
}

.btn-block {
  display: block;
  width: 100%;
}

/* HEADER & NAVIGATION */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(247, 251, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-glow);
  box-shadow: 0 4px 20px rgba(0, 170, 255, 0.05);
  transition: var(--transition);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--accent-primary);
  letter-spacing: -0.5px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-primary);
  position: relative;
  padding: 5px 0;
}

.nav-links a:hover {
  color: var(--accent-primary);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-primary);
  transition: var(--transition);
}

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

.nav-toggle-label {
  display: none;
  cursor: pointer;
  padding: 10px;
}

.nav-toggle-icon {
  display: block;
  width: 25px;
  height: 3px;
  background: var(--accent-primary);
  position: relative;
  transition: var(--transition);
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: var(--accent-primary);
  transition: var(--transition);
}

.nav-toggle-icon::before { top: -8px; }
.nav-toggle-icon::after { bottom: -8px; }

#nav-toggle {
  display: none;
}

/* HERO SECTION */
.hero {
  height: 90vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  background-image: linear-gradient(rgba(31, 41, 55, 0.7), rgba(0, 170, 255, 0.6)), url('images/hero-car-wash-action-shot.jpg');
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.hero-content {
  max-width: 800px;
  z-index: 2;
  animation: fadeIn 1s ease-out;
}

.hero h1 {
  font-size: 4rem;
  font-weight: 900;
  color: #ffffff;
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 15px rgba(31, 41, 55, 0.5);
}

.hero p {
  font-size: 1.25rem;
  color: #f7fbff;
  margin-bottom: 2.5rem;
}

.hero-btns {
  display: flex;
  gap: 20px;
  justify-content: center;
}

/* PAGE BANNER (For internal pages) */
.page-banner {
  padding: 120px 0 80px;
  text-align: center;
  background-image: linear-gradient(rgba(31, 41, 55, 0.8), rgba(0, 170, 255, 0.7)), url('images/internal-page-header-car-detailing.jpg');
  background-size: cover;
  background-position: center;
  color: #ffffff;
}

.page-banner h1 {
  color: #ffffff;
  font-size: 3rem;
  margin-bottom: 0.5rem;
}

.page-banner p {
  color: #e8f4ff;
  font-size: 1.2rem;
}

/* CARDS COMMON */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 40px 30px;
  box-shadow: var(--shadow-soft);
  transition: var(--transition);
  border: 1px solid rgba(255, 255, 255, 0.5);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
  border-color: var(--border-glow);
}

/* SERVICE CARDS */
.service-icon {
  width: 60px;
  height: 60px;
  background: var(--bg-secondary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}

.service-card h3 {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.service-price {
  margin-top: auto;
  font-weight: 700;
  color: var(--accent-primary);
  font-size: 1.1rem;
  padding-top: 20px;
}

/* PRICING CARDS */
.pricing-card {
  text-align: center;
  position: relative;
  padding: 50px 30px;
}

.pricing-card.popular {
  border: 2px solid var(--accent-primary);
  transform: scale(1.05);
  z-index: 2;
  background: #ffffff;
}

.pricing-card.popular:hover {
  transform: scale(1.05) translateY(-10px);
}

.popular-badge {
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-third));
  color: #fff;
  padding: 5px 20px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
}

.pricing-price {
  font-size: 3rem;
  font-weight: 900;
  color: var(--text-primary);
  margin: 20px 0;
}

.pricing-price span {
  font-size: 1rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-features {
  margin: 30px 0;
  text-align: left;
}

.pricing-features li {
  padding: 10px 0;
  border-bottom: 1px solid var(--bg-secondary);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
}

.pricing-features li::before {
  content: '✓';
  color: var(--accent-third);
  font-weight: bold;
  margin-right: 10px;
}

/* GALLERY SECTION */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
  height: 300px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(31, 41, 55, 0.9));
  padding: 20px;
  color: #ffffff;
  transform: translateY(100%);
  transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
  transform: translateY(0);
}

/* WHY CHOOSE US */
.feature-item {
  text-align: center;
  padding: 20px;
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  color: var(--accent-primary);
  font-size: 2rem;
}

/* TESTIMONIALS */
.testimonial-card {
  padding: 40px;
}

.stars {
  color: #fbbf24;
  font-size: 1.2rem;
  margin-bottom: 15px;
}

.client-info {
  display: flex;
  align-items: center;
  margin-top: 20px;
}

.client-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--bg-secondary);
  margin-right: 15px;
  object-fit: cover;
}

.client-name {
  font-weight: 700;
  color: var(--text-primary);
}

/* FORMS */
.booking-form, .contact-form {
  background: #ffffff;
  padding: 50px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  max-width: 800px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 15px 20px;
  border: 1px solid #d1d5db;
  border-radius: var(--radius-sm);
  background: var(--bg-primary);
  font-family: inherit;
  font-size: 1rem;
  color: var(--text-primary);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 170, 255, 0.1);
  background: #ffffff;
}

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

/* CONTACT INFO */
.contact-info-wrap {
  background: var(--accent-primary);
  color: #ffffff;
  padding: 50px;
  border-radius: var(--radius-md);
  height: 100%;
}

.contact-info-wrap h3, .contact-info-wrap p {
  color: #ffffff;
}

.contact-detail-item {
  display: flex;
  margin-bottom: 25px;
  align-items: flex-start;
}

.contact-detail-icon {
  margin-right: 15px;
  font-size: 1.5rem;
  color: var(--accent-secondary);
}

/* CONTENT PAGES (Terms, Privacy, About) */
.content-block {
  background: #ffffff;
  padding: 60px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  max-width: 900px;
  margin: 0 auto;
}

.content-block h2 {
  margin-top: 2rem;
  color: var(--accent-primary);
}

.content-block ul {
  list-style: disc;
  margin-left: 20px;
  margin-bottom: 1rem;
  color: var(--text-secondary);
}

/* FOOTER */
.footer {
  background-color: var(--text-primary);
  color: #ffffff;
  padding: 80px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 50px;
}

.footer-brand h3 {
  color: var(--accent-primary);
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.footer-brand p {
  color: #9ca3af;
}

.footer-links h4 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 20px;
}

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

.footer-links ul a {
  color: #9ca3af;
}

.footer-links ul a:hover {
  color: var(--accent-secondary);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #9ca3af;
  font-size: 0.9rem;
}

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

/* RESPONSIVE DESIGN */
@media screen and (max-width: 1024px) {
  :root {
    --space-desktop: var(--space-tablet);
  }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .pricing-card.popular { transform: none; }
  .pricing-card.popular:hover { transform: translateY(-10px); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .hero h1 { font-size: 3rem; }
}

@media screen and (max-width: 768px) {
  :root {
    --space-desktop: var(--space-mobile);
  }
  
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  
  /* Mobile Nav */
  .nav-toggle-label { display: block; }
  .nav-links {
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: #ffffff;
    flex-direction: column;
    padding: 20px;
    box-shadow: 0 10px 20px rgba(31, 41, 55, 0.1);
    clip-path: circle(0 at top right);
    transition: clip-path 0.4s ease-in-out;
    gap: 20px;
  }
  
  #nav-toggle:checked ~ .nav-links {
    clip-path: circle(150% at top right);
  }
  
  #nav-toggle:checked ~ .nav-toggle-label .nav-toggle-icon {
    background: transparent;
  }
  #nav-toggle:checked ~ .nav-toggle-label .nav-toggle-icon::before {
    transform: rotate(45deg);
    top: 0;
  }
  #nav-toggle:checked ~ .nav-toggle-label .nav-toggle-icon::after {
    transform: rotate(-45deg);
    top: 0;
  }

  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  
  .hero h1 { font-size: 2.2rem; }
  .hero-btns { flex-direction: column; }
  
  .booking-form, .contact-form, .content-block {
    padding: 30px 20px;
  }
}