/* ==========================================
   UNITED AUTO — DESIGN TOKENS & GLOBAL STYLES
   ========================================== */

:root {
  /* ========== BRAND COLORS ========== */
  --color-primary-red: #D70006;
  --color-primary-red-dark: #B50005;
  --color-navy: #000000;
  --color-navy-2: #1A1A1A;
  --color-dark-bg: #2E2E2E;
  --color-dark-bg-alt: #1A1A1A;
  --color-text-muted: #666E85;
  --color-white: #FFFFFF;
  --color-off-white: #F7F7F7;
  --color-border: #E5E5E5;
  --color-gray-light: #F5F5F5;
  --color-text-dark: #333333;

  /* ========== TYPOGRAPHY ========== */
  --font-heading: 'Poppins', 'Montserrat', sans-serif;
  --font-body: 'Roboto', 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-body: 16px;
  --font-size-small: 13px;
  --font-size-h1: 52px;
  --font-size-h2: 36px;
  --font-size-h3: 24px;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;

  /* ========== SPACING SCALE ========== */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 40px;
  --space-5: 64px;
  --space-6: 96px;

  /* ========== RADIUS & SHADOWS ========== */
  --radius-sm: 4px;
  --radius-btn: 2px;
  --radius-card: 8px;
  --shadow-card: 0 4px 15px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* ========== TRANSITIONS ========== */
  --transition-fast: 0.2s ease-out;
  --transition-normal: 0.3s ease-out;
  --transition-slow: 0.5s ease-out;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text-dark);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  margin-bottom: var(--space-2);
  color: var(--color-navy);
}

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(--space-2);
  color: var(--color-text-muted);
  line-height: 1.7;
}

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

:focus-visible {
  outline: 2px solid var(--color-primary-red);
  outline-offset: 2px;
}

a:hover {
  color: var(--color-primary-red-dark);
}

a:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.btn-outline:focus-visible,
.card:focus-visible,
tbody tr:focus-visible,
.tab-button:focus-visible,
.accordion-header:focus-visible {
  outline: 2px solid var(--color-primary-red);
  outline-offset: 2px;
}

.card:focus-visible,
.accordion-header:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--color-primary-red);
}

.is-invalid {
  border-color: #dc3545 !important;
  box-shadow: 0 0 0 0.2rem rgba(220, 53, 69, 0.15) !important;
}

/* ========== BUTTON STYLES ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-bold);
  border: none;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-family: var(--font-body);
}

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

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

.btn-secondary {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.btn-secondary:hover {
  background-color: var(--color-navy-2);
}

.btn-outline {
  border: 2px solid var(--color-primary-red);
  color: var(--color-primary-red);
  background-color: transparent;
}

.btn-outline:hover {
  background-color: var(--color-primary-red);
  color: var(--color-white);
}

/* ========== CONTAINER & SECTIONS ========== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-2);
}

.section {
  padding: var(--space-5) 0;
}

.section--dark {
  background-color: var(--color-dark-bg);
  color: var(--color-white);
}

.section--light {
  background-color: var(--color-off-white);
}

.section--navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

/* ========== GRID & FLEXBOX ========== */
.grid {
  display: grid;
  gap: var(--space-3);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.flex {
  display: flex;
  gap: var(--space-2);
}

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

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

.flex-column {
  display: flex;
  flex-direction: column;
}

/* ========== CARD COMPONENT ========== */
.card {
  background-color: var(--color-white);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
}

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

.card-glass {
  background: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
}

@supports (backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px)) {
  .card-glass {
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(10px) saturate(160%);
    -webkit-backdrop-filter: blur(10px) saturate(160%);
  }
}

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

.blog-card-media {
  position: relative;
  height: 250px;
  overflow: hidden;
}

.blog-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.card:hover .blog-card-media img {
  transform: scale(1.05);
}

.card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: var(--space-3);
}

.card-title {
  font-size: var(--font-size-h3);
  margin-bottom: var(--space-2);
  color: var(--color-navy);
}

.card-text {
  font-size: 14px;
  color: var(--color-text-muted);
}

/* ========== BADGES & LABELS ========== */
.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-red {
  background-color: var(--color-primary-red);
  color: var(--color-white);
}

.badge-navy {
  background-color: var(--color-navy);
  color: var(--color-white);
}

.eyebrow {
  font-size: 12px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-red);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.eyebrow::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background-color: var(--color-primary-red);
}

/* ========== TABLE STYLES ========== */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-dark-bg);
}

thead {
  background-color: var(--color-primary-red-dark);
  color: var(--color-white);
}

th {
  padding: var(--space-3);
  text-align: left;
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.5px;
}

td {
  padding: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-white);
}

tbody tr:nth-child(even) {
  background-color: #333333;
}

tbody tr:hover {
  background-color: #3a3a3a;
}

/* ========== TABS ========== */
.tabs {
  display: flex;
  gap: var(--space-3);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.tab-button {
  background: none;
  border: none;
  padding: var(--space-3) 0;
  font-size: 16px;
  font-weight: var(--font-weight-medium);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: color var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  position: relative;
}

.tab-button:hover {
  color: var(--color-navy);
}

.tab-button.active {
  color: var(--color-primary-red);
}

.tab-button.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-primary-red);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn var(--transition-fast);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ========== ACCORDION ========== */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-white);
}

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

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3);
  cursor: pointer;
  background-color: var(--color-off-white);
  transition: background-color var(--transition-fast);
}

.accordion-header:hover {
  background-color: var(--color-gray-light);
}

.accordion-title {
  font-size: 16px;
  font-weight: var(--font-weight-bold);
  color: var(--color-navy);
  margin: 0;
}

.accordion-icon {
  font-size: 20px;
  color: var(--color-primary-red);
  transition: transform var(--transition-normal);
}

.accordion-item.open .accordion-icon {
  transform: rotate(180deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
  background-color: var(--color-white);
}

.accordion-item.open .accordion-body {
  max-height: 500px;
  padding: 0 var(--space-3) var(--space-3);
}

.accordion-text {
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  :root {
    --font-size-h1: 36px;
    --font-size-h2: 28px;
    --font-size-h3: 20px;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--space-3);
  }

  .section {
    padding: var(--space-4) 0;
  }

  h1, h2 {
    margin-bottom: var(--space-3);
  }

  .tabs {
    gap: var(--space-2);
    margin-bottom: var(--space-3);
  }

  .tab-button {
    padding: var(--space-2) 0;
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-h1: 28px;
    --font-size-h2: 22px;
    --font-size-h3: 18px;
    --space-3: 16px;
    --space-4: 24px;
    --space-5: 40px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 14px;
  }

  .card-image {
    height: 200px;
  }

  table {
    font-size: 12px;
  }

  th, td {
    padding: var(--space-2);
  }
}