:root {
  --color-background: #FFFFFF;
  --color-surface: #F8F8F8; /* Light grey for cards */
  --color-primary: #EE3A3A; /* Red for CTAs */
  --color-primary-hover: #d32f2f;
  --color-secondary: #FF7F50; /* Coral for icons/highlights */
  --color-text-primary: #050606; /* Dark grey/black for text */
  --color-text-secondary: #555555;
  --color-border: #EAEAEA;
  --font-family-sans: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
  --container-width: 1120px;
  --border-radius: 8px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body.mobile-nav-open {
    overflow: hidden;
}

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

main {
  flex-grow: 1;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s ease-in-out;
}

a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 3rem;
  color: var(--color-text-primary);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
}
.btn:hover {
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: #FFFFFF;
}
.btn-primary:hover {
    background-color: var(--color-primary-hover);
    color: #FFFFFF;
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}
.btn-secondary:hover {
    background-color: var(--color-primary);
    color: #FFFFFF;
}

.btn-tertiary {
    color: var(--color-primary);
    font-weight: 500;
    padding: 0;
    background: none;
}
.btn-tertiary:hover {
    text-decoration: underline;
}

/* Header */
.header {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
  background-color: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 50;
}

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

.header__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.header__logo:hover {
  color: var(--color-text-primary);
  text-decoration: none;
}
.header__logo-icon {
    width: 28px;
    height: 28px;
}

.header__nav--desktop {
    display: flex;
    align-items: center;
    gap: 1.75rem;
}

.header__nav--desktop ul {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.header__nav--desktop a {
  color: var(--color-text-secondary);
  font-weight: 500;
  text-decoration: none;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header__nav--desktop a:hover, .header__nav--desktop a.active {
  color: var(--color-text-primary);
  text-decoration: none;
}

.nav-icon {
  width: 18px;
  height: 18px;
  color: var(--color-secondary);
}

.header__search-btn {
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}
.header__search-btn:hover {
    color: var(--color-text-primary);
}

.header__menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
}

/* Mobile Nav */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--color-background);
    z-index: 100;
    transition: right 0.3s ease-in-out;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

body.mobile-nav-open .mobile-nav {
    right: 0;
}

.mobile-nav__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav__close-btn {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
}

.mobile-nav__links ul {
    list-style: none;
    padding: 2rem 1.5rem;
}

.mobile-nav__links li a {
    display: block;
    padding: 1rem 0;
    font-size: 1.25rem;
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 500;
}

/* Hero Section */
.hero {
  padding: 4rem 0;
  text-align: center;
  background-color: var(--color-background);
}
.hero__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}
.hero__title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.hero__subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  max-width: 700px;
}
.hero__search-container {
    width: 100%;
    max-width: 600px;
    margin: 1rem auto 0;
}
.hero__search-form {
    display: flex;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    overflow: hidden;
}
.hero__search-form input {
    flex-grow: 1;
    border: none;
    padding: 1rem;
    font-size: 1rem;
    background: var(--color-background);
    color: var(--color-text-primary);
}
.hero__search-form input:focus {
    outline: none;
}
.hero__search-form button {
    border: none;
    background-color: var(--color-primary);
    color: white;
    padding: 0 1.5rem;
    cursor: pointer;
    transition: background-color 0.2s;
}
.hero__search-form button:hover {
    background-color: var(--color-primary-hover);
}
.hero__search-chips {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}
.hero__search-chips span {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}
.hero__chip {
    display: inline-block;
    background-color: var(--color-surface);
    color: var(--color-text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.85rem;
    text-decoration: none;
    border: 1px solid var(--color-border);
    transition: all 0.2s ease;
}
.hero__chip:hover {
    background-color: var(--color-secondary);
    color: white;
    border-color: var(--color-secondary);
    text-decoration: none;
}

/* Popular Searches Section */
.popular-searches-section {
    padding: 4rem 0;
    background-color: var(--color-surface);
}

/* Intro Section */
.intro-section {
    padding: 4rem 0;
    text-align: center;
}
.intro-section p {
    max-width: 800px;
    margin: 0 auto 1rem;
    color: var(--color-text-secondary);
    font-size: 1.125rem;
}

/* Tools Section */
.tools-section {
    padding: 4rem 0;
    background-color: var(--color-surface);
}
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.tool-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}
.tool-card__icon {
    height: 60px;
    margin: 0 auto 1.5rem;
}
.tool-card__title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.tool-card__desc {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
}
.tool-card__links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Steps Section */
.steps-section {
    padding: 5rem 0;
}
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.step-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.step-card__number {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-secondary);
    color: #FFFFFF;
    display: grid;
    place-items: center;
    font-size: 1.5rem;
    font-weight: 700;
}
.step-card__content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.step-card__content p {
    color: var(--color-text-secondary);
}
.steps-cta {
    text-align: center;
    margin-top: 3rem;
}

/* Comparison Section */
.comparison-section {
    padding: 4rem 0;
    background-color: var(--color-surface);
}

/* Cost Section */
.cost-section {
    padding: 5rem 0;
}
.cost-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 2rem;
}
.cost-card {
    text-align: center;
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.cost-card__icon {
    height: 50px;
    margin: 0 auto 1rem;
    color: var(--color-secondary);
}
.cost-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}
.cost-card__price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 0.5rem 0;
}
.cost-card__desc {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Related Codes Section */
.related-codes-section {
    padding: 4rem 0;
    background-color: var(--color-surface);
}
.codes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}
.code-card {
  background-color: var(--color-background);
  border-radius: var(--border-radius);
  padding: 1.5rem;
  text-align: center;
  border: 1px solid var(--color-border);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
  color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.code-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}
.code-card__icon {
  height: 40px;
  width: 40px;
  color: var(--color-secondary);
}
.code-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}
.code-card p {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin: 0;
}


/* Footer */
.footer {
  background-color: #0D111C;
  color: #FFFFFF;
  padding-top: 4rem;
  margin-top: auto;
}
.footer a {
    color: #a0aec0; /* Lighter grey for links */
}
.footer a:hover {
    color: #FFFFFF;
}
.footer__container {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 2rem;
}
.footer__logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.footer__about p {
  color: #a0aec0;
  max-width: 350px;
}
.footer h4 {
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #FFFFFF;
  margin-bottom: 1rem;
}
.footer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer__bottom {
  margin-top: 4rem;
  padding: 1.5rem 0;
  text-align: center;
  border-top: 1px solid #2a2a2a;
  color: #a0aec0;
  font-size: 0.875rem;
}

/* Content Page Styles */
.content-page {
    padding-top: 3rem;
    padding-bottom: 5rem;
}
.content-page section {
    margin-bottom: 4rem;
}
.content-page h2 {
    font-size: 1.875rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--color-border);
}
.content-page p, .content-page li {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}
.breadcrumb {
    margin-bottom: 2rem;
}
.breadcrumb ol {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
}
.breadcrumb li {
    color: var(--color-text-secondary);
    margin: 0;
}
.breadcrumb li a {
    color: var(--color-text-secondary);
}
.breadcrumb li a:hover {
    color: var(--color-text-primary);
}
.breadcrumb li:not(:last-child)::after {
    content: '>';
    margin-left: 0.5rem;
    color: var(--color-text-secondary);
}
.content-header {
    text-align: center;
    margin-bottom: 4rem;
}
.content-header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}
.content-header__subtitle {
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
    color: var(--color-text-secondary);
}
.content-header__logo {
    height: 60px;
    margin: 0 auto 1.5rem;
}
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}
.model-card {
    display: block;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all 0.2s ease;
}
.model-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-primary);
    text-decoration: none;
}
.model-card h3 {
    color: var(--color-text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.model-card p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}
.styled-list {
    list-style: none;
    padding-left: 1.5rem;
}
.styled-list li {
    position: relative;
    margin-bottom: 0.75rem;
}
.styled-list li::before {
    content: '✓';
    position: absolute;
    left: -1.5rem;
    color: var(--color-secondary);
    font-weight: 600;
}
.table-container {
    overflow-x: auto;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    background-color: var(--color-background);
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
thead {
    background-color: var(--color-surface);
}
th {
    font-weight: 600;
    color: var(--color-text-primary);
}
td {
    color: var(--color-text-secondary);
}
tbody tr:last-child td {
    border-bottom: none;
}
.cta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}
.cta-card {
    display: block;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: all 0.2s ease;
}
.cta-card:hover {
    transform: translateY(-3px);
    border-color: var(--color-primary);
    text-decoration: none;
}
.cta-card h3 {
    color: var(--color-text-primary);
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}
.cta-card p {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Accordion for Code List */
.code-accordion details {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}
.code-accordion summary {
    padding: 1rem 1.5rem;
    font-weight: 600;
    cursor: pointer;
    font-size: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.code-accordion summary::after {
    content: '+';
    font-size: 1.5rem;
    transition: transform 0.2s;
}
.code-accordion details[open] summary::after {
    transform: rotate(45deg);
}
.code-accordion .details-content {
    padding: 0 1.5rem 1.5rem;
    border-top: 1px solid var(--color-border);
}
.code-accordion table {
    margin-top: 1rem;
}

/* Brands Page */
.brands-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1.5rem;
}
.brand-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--color-surface);
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    text-decoration: none;
    transition: all 0.2s ease;
}
.brand-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    text-decoration: none;
}
.brand-card img {
    height: 50px;
    width: auto;
    object-fit: contain;
}
.brand-card h3 {
    color: var(--color-text-primary);
    font-size: 1rem;
    margin: 0;
}
.brand-card__icon {
    height: 40px;
    width: 40px;
    color: var(--color-secondary);
}

/* Search Results */
.search-result-card {
    display: block;
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    margin-bottom: 1rem;
    text-decoration: none;
}
.search-result-card:hover {
    border-color: var(--color-primary);
    text-decoration: none;
}
.search-result-card h3 {
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}
.search-result-card p {
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}
.search-result-card span {
    color: var(--color-primary);
    font-weight: 600;
}


/* Responsive */
@media (max-width: 960px) {
    .tools-grid {
        grid-template-columns: 1fr;
    }
    .footer__container {
        grid-template-columns: 1fr 1fr;
    }
    .footer__about {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
  .header__nav--desktop {
    display: none;
  }
  .header__menu-btn {
    display: block;
  }
  .hero__title {
    font-size: 2.25rem;
  }
  .footer__container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .footer__about p {
    margin: 0 auto;
  }
  .footer__links ul {
    align-items: center;
  }
  .content-header h1 {
    font-size: 2rem;
  }
  .table-container td {
      display: block;
      width: 100%;
      text-align: right !important;
      padding-left: 50%;
      position: relative;
  }
  .table-container td::before {
      content: attr(data-label);
      position: absolute;
      left: 1rem;
      width: calc(50% - 2rem);
      text-align: left;
      font-weight: 600;
      color: var(--color-text-primary);
  }
  .table-container thead {
      display: none;
  }
  .table-container tr {
      display: block;
      margin-bottom: 1rem;
      border: 1px solid var(--color-border);
      border-radius: var(--border-radius);
      overflow: hidden;
  }
  .table-container td:last-child {
      border-bottom: 0;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 1.8rem;
  }
  .hero__subtitle {
    font-size: 1rem;
  }
  .content-page {
      padding-top: 1.5rem;
  }
  .content-header h1 {
      font-size: 1.75rem;
  }
}