/* ==========================================
   PRECISION WASH BAY - VISUAL STYLE SHEET
   ========================================== */

/* 1. CSS Custom Properties & Variables */
:root {
  --bg-main: #F4F8F5; /* Softest green-tinted neutral */
  --bg-surface: #FFFFFF;
  --color-graphite: #121814; /* Deep rich forest black - minimal usage */
  --color-steel-blue: #1A5235; /* Primary: Rich British Racing Green */
  --color-clean-aqua: #C62828; /* Secondary: Rich Crimson Red */
  --color-foam-white: #F1F7F3; /* Soft pale green wash-bay style */
  --color-warm-grey: #D2DCD5; /* Soft grey-green */
  --color-signal-orange: #BA2020; /* Deep active Red */
  --color-border: #CFDDD4; /* Pale sage border */
  --color-muted: #4E5D54; /* Subdued sage-charcoal */
  
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  
  --max-width: 1200px;
}

/* 2. Base & Reset Styling */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--color-graphite);
  line-height: 1.6;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-steel-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-clean-aqua);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-steel-blue); /* Distinct green headings */
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}

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

ul, ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
}

/* 3. Common Layout Components */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section-padding {
  padding: 4rem 0;
}

@media (max-width: 768px) {
  .section-padding {
    padding: 2.5rem 0;
  }
}

.grid {
  display: grid;
  gap: 1.5rem;
}

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

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

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

@media (max-width: 992px) {
  .grid-3, .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* Buttons & CTAs */
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition-fast);
  font-size: 0.95rem;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-steel-blue);
  color: var(--bg-surface);
}

.btn-primary:hover {
  background-color: var(--color-clean-aqua);
  color: var(--bg-surface);
}

.btn-secondary {
  background-color: transparent;
  border-color: var(--color-clean-aqua);
  color: var(--color-clean-aqua);
}

.btn-secondary:hover {
  background-color: var(--color-clean-aqua);
  color: var(--bg-surface);
}

.btn-accent {
  background-color: var(--color-signal-orange);
  color: var(--bg-surface);
}

.btn-accent:hover {
  background-color: var(--color-steel-blue);
  color: var(--bg-surface);
}

/* 4. Header & Navigation */
header {
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(26,82,53,0.05);
}

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

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--color-steel-blue);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--color-clean-aqua);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav-links a {
  font-weight: 500;
  color: var(--color-muted);
  font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-clean-aqua);
  border-bottom: 2px solid var(--color-clean-aqua);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--color-steel-blue);
  cursor: pointer;
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background-color: var(--bg-surface);
    flex-direction: column;
    padding: 1.5rem;
    border-bottom: 2px solid var(--color-border);
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
  }

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

  .mobile-menu-toggle {
    display: block;
  }
}

/* 5. Footer & Legal */
footer {
  background-color: var(--color-steel-blue);
  color: var(--bg-surface);
  padding: 4rem 0 2rem 0;
  margin-top: auto;
  border-top: 4px solid var(--color-clean-aqua);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-logo {
  color: var(--bg-surface);
  font-weight: 800;
  font-size: 1.6rem;
  margin-bottom: 1rem;
}

.footer-logo span {
  color: var(--color-clean-aqua);
}

.footer-about {
  color: var(--color-warm-grey);
  font-size: 0.9rem;
}

.footer-links-col h4 {
  color: var(--color-clean-aqua);
  font-size: 1.1rem;
  margin-bottom: 1.2rem;
}

.footer-links-col ul {
  list-style: none;
  padding: 0;
}

.footer-links-col ul li {
  margin-bottom: 0.75rem;
}

.footer-links-col ul li a {
  color: var(--color-warm-grey);
  font-size: 0.9rem;
}

.footer-links-col ul li a:hover {
  color: var(--bg-surface);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-warm-grey);
}

.footer-bottom-links {
  display: flex;
  gap: 1.5rem;
}

.footer-bottom-links a {
  color: var(--color-warm-grey);
}

.footer-bottom-links a:hover {
  color: var(--bg-surface);
}

@media (max-width: 768px) {
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .footer-bottom-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

/* 6. Page-Specific Styling & UI Elements */

/* Hero Banner */
.hero {
  background-color: var(--color-foam-white);
  border-bottom: 2px solid var(--color-border);
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 40%;
  background: linear-gradient(135deg, rgba(198,40,40,0.05) 0%, rgba(26,82,53,0.08) 100%);
  clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
}

@media (max-width: 768px) {
  .hero {
    padding: 3rem 0;
  }
  .hero::after {
    display: none;
  }
}

.hero-content {
  max-width: 700px;
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3rem;
  line-height: 1.15;
  margin-bottom: 1.5rem;
  color: var(--color-steel-blue);
}

@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.2rem;
  }
}

.hero p {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
}

@media (max-width: 480px) {
  .hero-ctas {
    flex-direction: column;
  }
}

/* Vehicle Care Selector */
.selector-section {
  background-color: var(--bg-surface);
  border-bottom: 2px solid var(--color-border);
  padding: 3rem 0;
}

.selector-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

@media (max-width: 768px) {
  .selector-tabs {
    grid-template-columns: 1fr;
  }
}

.selector-tab {
  background-color: var(--color-foam-white);
  border: 2px solid var(--color-border);
  padding: 1.25rem;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  text-align: left;
  transition: all var(--transition-fast);
}

.selector-tab:hover {
  border-color: var(--color-steel-blue);
}

.selector-tab.active {
  border-color: var(--color-clean-aqua);
  background-color: var(--bg-surface);
  box-shadow: 0 4px 12px rgba(26,82,53,0.1);
}

.selector-tab h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
  color: var(--color-steel-blue);
}

.selector-tab p {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin: 0;
}

.selector-content-pane {
  background-color: var(--color-foam-white);
  border: 1px solid var(--color-border);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  display: none;
}

.selector-content-pane.active {
  display: block;
}

/* Cards & Presentation Components */
.card {
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 2rem;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(26,82,53,0.08);
}

.card-image {
  margin-bottom: 1.5rem;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  height: 200px;
  background-color: var(--color-warm-grey);
}

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

.card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  color: var(--color-steel-blue);
}

.card p {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 1.5rem;
}

/* Process Map Components */
.process-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  position: relative;
  margin: 3rem 0;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 20px;
  width: 2px;
  background-color: var(--color-border);
}

.process-step {
  display: flex;
  gap: 2rem;
  position: relative;
}

.process-step-num {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: var(--color-steel-blue);
  color: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  z-index: 2;
  flex-shrink: 0;
}

.process-step-content {
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  padding: 1.5rem;
  border-radius: var(--border-radius-md);
  flex-grow: 1;
}

.process-step-content h3 {
  color: var(--color-steel-blue);
}

/* Seasonal Strips */
.seasonal-strip {
  background-color: var(--color-foam-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 1.5rem;
  text-align: center;
  border-top: 4px solid var(--color-steel-blue);
}

.seasonal-strip.winter { border-top-color: var(--color-steel-blue); }
.seasonal-strip.spring { border-top-color: var(--color-clean-aqua); }
.seasonal-strip.summer { border-top-color: var(--color-signal-orange); }
.seasonal-strip.autumn { border-top-color: var(--color-warm-grey); }

.seasonal-strip h3 {
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  color: var(--color-steel-blue);
}

.seasonal-strip p {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

/* Checklist Panel */
.checklist-panel {
  background-color: var(--color-foam-white);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-md);
  padding: 2rem;
}

.checklist-panel h3 {
  color: var(--color-steel-blue);
}

.checklist-list {
  list-style: none;
  padding: 0;
}

.checklist-list li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 1rem;
}

.checklist-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-clean-aqua);
  font-weight: bold;
}

/* Accordion FAQs */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  overflow: hidden;
}

.faq-trigger {
  width: 100%;
  padding: 1.25rem;
  background: none;
  border: none;
  text-align: left;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--color-steel-blue);
}

.faq-trigger::after {
  content: '+';
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-clean-aqua);
}

.faq-item.open .faq-trigger::after {
  content: '-';
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal) ease-out;
  padding: 0 1.25rem;
}

.faq-item.open .faq-content {
  max-height: 500px;
  padding: 0 1.25rem 1.25rem 1.25rem;
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-steel-blue);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--border-radius-sm);
  background-color: var(--bg-surface);
  color: var(--color-graphite);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-clean-aqua);
  box-shadow: 0 0 0 3px rgba(198,40,40,0.1);
}

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

.form-feedback {
  background-color: #FDF2F2;
  border: 1px solid var(--color-clean-aqua);
  padding: 1rem;
  border-radius: var(--border-radius-sm);
  margin-bottom: 1.5rem;
  display: none;
  color: var(--color-signal-orange);
}

/* Cookie Consent Banner */
.cookie-banner {
  position: fixed;
  bottom: 2rem;
  left: 2rem;
  right: 2rem;
  max-width: 600px;
  background-color: var(--color-steel-blue);
  color: var(--bg-surface);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.15);
  z-index: 9999;
  display: none;
  border: 2px solid var(--color-clean-aqua);
}

.cookie-banner h3 {
  color: var(--bg-surface);
  margin-bottom: 1rem;
}

.cookie-banner p {
  color: var(--color-warm-grey);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.cookie-btn-group {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 576px) {
  .cookie-banner {
    bottom: 0;
    left: 0;
    right: 0;
    max-width: 100%;
    border-radius: 0;
  }
}

/* Utility classes */
.text-center { text-align: center; }
.section-title {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  color: var(--color-steel-blue);
}
.section-subtitle {
  color: var(--color-muted);
  max-width: 600px;
  margin: 0 auto 3rem auto;
  font-size: 1.1rem;
}
.bg-white { background-color: var(--bg-surface); }
.border-top { border-top: 1px solid var(--color-border); }