/* ==========================================================================
   CARTEK MECHANICAL REPAIRS - CORE DESIGN SYSTEM & STYLES
   Adhering strictly to WEBSITE_STANDARDS.md & Brand Creative Direction
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400;1,600&display=swap');

:root {
  /* Brand Palette (Exact Specifications) */
  --color-primary: #DA0D12;
  --color-crimson: #80060B;
  --color-black: #161616;
  --color-body: #424141;
  --color-grey: #666362;
  --color-silver: #CBCAC8;
  --color-silver-light: #F4F4F3;
  --color-white: #FFFFFF;

  /* Brand Gradients */
  --grad-red: linear-gradient(135deg, #80060B 0%, #DA0D12 100%);
  --grad-dark: linear-gradient(135deg, #161616 0%, #424141 100%);
  --grad-subtle: linear-gradient(180deg, #FFFFFF 0%, #F8F9FA 100%);
  --grad-accent-border: linear-gradient(90deg, #DA0D12, #CBCAC8, transparent);

  /* Typography */
  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-base: 18px;
  --line-height-base: 1.7;
  --line-height-heading: 1.25;

  /* Heading Font Sizes (Desktop Constants) */
  --h1-size: 56px;
  --h2-size: 48px;
  --h3-size: 40px;
  --h4-size: 32px;
  --h5-size: 26px;
  --h6-size: 22px;

  /* Layout */
  --container-max-width: 1280px;
  --container-padding: 0 24px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows & Depth */
  --shadow-sm: 0 2px 8px rgba(22, 22, 22, 0.06);
  --shadow-md: 0 8px 24px rgba(22, 22, 22, 0.08);
  --shadow-lg: 0 16px 40px rgba(22, 22, 22, 0.12);
  --shadow-red: 0 8px 25px rgba(218, 13, 18, 0.28);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: var(--line-height-base);
  color: var(--color-body);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family);
  color: var(--color-black);
  font-weight: 700;
  line-height: var(--line-height-heading);
  letter-spacing: -0.02em;
  margin-bottom: 0.5em;
}

h1 {
  font-size: clamp(34px, 5.2vw, var(--h1-size));
  font-weight: 800;
}

h2 {
  font-size: clamp(28px, 4vw, var(--h2-size));
}

h3 {
  font-size: clamp(24px, 3.2vw, var(--h3-size));
}

h4 {
  font-size: clamp(20px, 2.5vw, var(--h4-size));
}

h5 {
  font-size: clamp(18px, 2.2vw, var(--h5-size));
}

h6 {
  font-size: clamp(16px, 1.8vw, var(--h6-size));
}

p {
  margin-bottom: 1.25rem;
  color: var(--color-body);
}

p.lead {
  font-size: 1.15rem;
  line-height: 1.75;
  color: #333333;
}

strong, b {
  font-weight: 600;
  color: var(--color-black);
}

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

a:hover {
  color: var(--color-crimson);
}

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

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding: var(--container-padding);
}

.section-spacer {
  padding: 80px 0;
}

@media (max-width: 768px) {
  .section-spacer {
    padding: 56px 0;
  }
}

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

.section-header {
  margin-bottom: 48px;
}

.section-header.text-center {
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-grey);
  margin-top: 12px;
}

/* Standard Category Badge (WEBSITE_STANDARDS.md Rule) */
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(218, 13, 18, 0.08);
  border: 1px solid rgba(218, 13, 18, 0.25);
  color: var(--color-primary);
  margin-bottom: 20px;
  width: fit-content;
}

.category-badge.badge-dark {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  color: #FFFFFF;
}

.category-badge.badge-silver {
  background: rgba(203, 202, 200, 0.25);
  border-color: var(--color-silver);
  color: var(--color-black);
}

/* Buttons (Production Standard) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: var(--grad-red);
  color: #FFFFFF !important;
  box-shadow: var(--shadow-red);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(218, 13, 18, 0.4);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-black) !important;
  border: 1.5px solid var(--color-black);
}

.btn-secondary:hover {
  background: var(--color-black);
  color: #FFFFFF !important;
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: #FFFFFF !important;
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn-outline-white:hover {
  border-color: #FFFFFF;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--grad-dark);
  color: #FFFFFF !important;
}

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

.btn-lg {
  padding: 16px 34px;
  font-size: 17px;
}

.btn-sm {
  padding: 10px 18px;
  font-size: 14px;
}

/* Button Group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

/* Sub-page Hero Standard (With Wave Pattern from WEBSITE_STANDARDS.md) */
.subpage-hero {
  position: relative;
  background: var(--grad-dark);
  color: #FFFFFF;
  padding: 90px 0 70px;
  overflow: hidden;
}

.subpage-hero h1 {
  color: #FFFFFF;
  margin-bottom: 16px;
}

.subpage-hero p {
  color: #CBCAC8;
  max-width: 720px;
  font-size: 1.15rem;
}

.subpage-hero .category-badge {
  background: rgba(218, 13, 18, 0.2);
  border-color: rgba(218, 13, 18, 0.5);
  color: #FFA4A6;
}

.hero-wave-pattern {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  background-image: url('../assets/images/wave-pattern.svg');
  background-repeat: no-repeat;
  background-position: center bottom;
  background-size: cover;
  opacity: 0.18;
  pointer-events: none;
  z-index: 1;
}

.subpage-hero .container {
  position: relative;
  z-index: 2;
}

/* Breadcrumbs */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: #A0A0A0;
  margin-top: 24px;
}

.breadcrumbs a {
  color: #CBCAC8;
}

.breadcrumbs a:hover {
  color: #FFFFFF;
}

.breadcrumbs span.separator {
  color: #666362;
}

.breadcrumbs span.current {
  color: #FFFFFF;
  font-weight: 500;
}

/* Cards & Grid Systems */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

@media (max-width: 640px) {
  .grid-4, .grid-3, .grid-2 {
    grid-template-columns: 1fr;
  }
}

/* Workshop Feature Cards */
.feature-card {
  background: var(--color-white);
  border: 1px solid rgba(22, 22, 22, 0.08);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  position: relative;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(218, 13, 18, 0.3);
}

.feature-card .card-icon {
  width: 56px;
  height: 56px;
  border-radius: 8px;
  background: rgba(218, 13, 18, 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 26px;
}

.feature-card h3 {
  font-size: 22px;
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--color-grey);
  font-size: 16px;
  margin-bottom: 18px;
  flex-grow: 1;
}

.card-link {
  font-weight: 600;
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  margin-top: auto;
}

.card-link:hover {
  color: var(--color-crimson);
  text-decoration: underline;
}

/* Trust Bar / Stats Banner */
.stats-banner {
  background: var(--color-black);
  color: #FFFFFF;
  padding: 40px 0;
  border-top: 3px solid var(--color-primary);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px 16px;
  }
}

.stat-item .stat-number {
  font-size: clamp(32px, 4vw, 44px);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-item .stat-number span.highlight {
  color: var(--color-primary);
}

.stat-item .stat-label {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-silver);
  font-weight: 500;
}

/* Review Cards */
.review-card {
  background: var(--color-white);
  border: 1px solid rgba(22, 22, 22, 0.09);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.review-stars {
  color: #FFB800;
  font-size: 18px;
  letter-spacing: 2px;
  margin-bottom: 14px;
}

.review-text {
  font-size: 16px;
  font-style: italic;
  color: var(--color-body);
  margin-bottom: 20px;
  flex-grow: 1;
  line-height: 1.6;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  border-top: 1px solid var(--color-silver-light);
  padding-top: 14px;
}

.review-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--grad-red);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.author-info .author-name {
  font-weight: 700;
  color: var(--color-black);
  font-size: 15px;
}

.author-info .author-source {
  font-size: 13px;
  color: var(--color-grey);
}

/* Call to Action Banner */
.cta-banner {
  background: var(--grad-red);
  color: #FFFFFF;
  padding: 64px 0;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.cta-banner h2 {
  color: #FFFFFF;
  margin-bottom: 16px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 18px;
  max-width: 600px;
  margin-bottom: 28px;
}

/* Contact Details Info Box */
.contact-info-card {
  background: #FDFDFD;
  border: 1px solid var(--color-silver);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 24px;
}

.contact-info-item:last-child {
  margin-bottom: 0;
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: rgba(218, 13, 18, 0.1);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-text h4 {
  font-size: 17px;
  margin-bottom: 4px;
}

.contact-info-text p, .contact-info-text a {
  font-size: 15px;
  color: var(--color-body);
  margin-bottom: 0;
}

/* Booking & Enquiry Form */
.booking-form {
  background: var(--color-white);
  border: 1px solid rgba(22, 22, 22, 0.1);
  border-radius: var(--radius-md);
  padding: 36px 32px;
  box-shadow: var(--shadow-md);
}

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

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-black);
  margin-bottom: 8px;
}

.form-group label span.required {
  color: var(--color-primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-silver);
  border-radius: var(--radius-sm);
  font-family: var(--font-family);
  font-size: 15px;
  color: var(--color-black);
  background-color: #FFFFFF;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(218, 13, 18, 0.15);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-note {
  font-size: 13px;
  color: var(--color-grey);
  margin-top: 12px;
  line-height: 1.5;
}

.form-alert {
  padding: 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  display: none;
}

.form-alert.success {
  display: block;
  background: #E8F7ED;
  border: 1px solid #72D497;
  color: #106634;
}

.form-alert.error {
  display: block;
  background: #FDEDEC;
  border: 1px solid #F5B7B1;
  color: #922B21;
}

/* Map Embed Container */
.map-container {
  width: 100%;
  height: 380px;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-silver);
  box-shadow: var(--shadow-sm);
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* Tally Form Card Standard (WEBSITE_STANDARDS.md Section 5) */
.tally-form-card {
  max-width: 720px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid rgba(22, 22, 22, 0.1);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-md);
}

.tally-form-card iframe {
  border: none;
  width: 100%;
}

/* Sub-service Detailed Content Layout */
.service-detail-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
}

@media (max-width: 900px) {
  .service-detail-layout {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

.service-main-content h2 {
  margin-top: 32px;
  margin-bottom: 16px;
}

.service-main-content h2:first-of-type {
  margin-top: 0;
}

.service-checklist {
  list-style: none;
  margin: 24px 0 32px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px 20px;
}

@media (max-width: 600px) {
  .service-checklist {
    grid-template-columns: 1fr;
  }
}

.service-checklist li {
  position: relative;
  padding-left: 28px;
  font-size: 16px;
  color: var(--color-body);
}

.service-checklist li::before {
  content: "✔";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.service-sidebar-card {
  background: #FDFDFD;
  border: 1px solid var(--color-silver);
  border-radius: var(--radius-md);
  padding: 28px;
  margin-bottom: 24px;
}

.service-sidebar-card h4 {
  font-size: 18px;
  margin-bottom: 14px;
  border-bottom: 2px solid var(--color-primary);
  padding-bottom: 8px;
}

.service-nav-list {
  list-style: none;
}

.service-nav-list li {
  margin-bottom: 10px;
}

.service-nav-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  background: var(--color-white);
  border: 1px solid var(--color-silver-light);
  color: var(--color-black);
  font-size: 15px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.service-nav-list a:hover,
.service-nav-list a.active {
  background: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
}

/* Responsive adjustments */
@media (max-width: 480px) {
  :root {
    --container-padding: 0 18px;
  }
  .btn {
    width: 100%;
    text-align: center;
  }
  .btn-group {
    flex-direction: column;
    width: 100%;
  }
}