/* ===========================================
   4x4 JUNKIES - Design System & Styles
   =========================================== */

/* --- CSS Custom Properties --- */
:root {
  --color-primary: #1F2933;
  --color-secondary: #334E68;
  --color-accent: #C58B2A;
  --color-accent-hover: #A87623;
  --color-bg: #F7F5F0;
  --color-surface: #FFFFFF;
  --color-muted: #6B7280;
  --color-dark: #111827;
  --color-success: #3F6B4B;
  --color-border: #E5E3DE;
  --color-overlay: rgba(31, 41, 51, 0.85);

  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2.5rem;
  --spacing-xl: 4rem;
  --spacing-2xl: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-dark);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

p {
  color: var(--color-muted);
  max-width: 65ch;
}

.text-accent { color: var(--color-accent); }
.text-center { text-align: center; }
.text-center p { margin-inline: auto; }

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.section {
  padding-block: var(--spacing-xl);
}

.section--lg {
  padding-block: var(--spacing-2xl);
}

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

.section--dark {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-surface);
}

.section--dark p {
  color: #B0BEC5;
}

.section-header {
  margin-bottom: var(--spacing-lg);
}

.section-header p {
  margin-top: var(--spacing-xs);
}

/* --- Grid --- */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid--2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  text-align: center;
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-surface);
  border-color: var(--color-accent);
}

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

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

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-surface);
}

.btn--outline-light {
  background-color: transparent;
  color: var(--color-surface);
  border-color: var(--color-surface);
}

.btn--outline-light:hover {
  background-color: var(--color-surface);
  color: var(--color-primary);
}

.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border-color: transparent;
  padding-inline: 0.5rem;
}

.btn--ghost:hover {
  color: var(--color-accent-hover);
}

.btn--sm {
  font-size: 0.85rem;
  padding: 0.5rem 1.25rem;
}

.btn--lg {
  font-size: 1.05rem;
  padding: 0.9rem 2.25rem;
}

.btn--whatsapp {
  background-color: #25D366;
  color: #fff;
  border-color: #25D366;
}

.btn--whatsapp:hover {
  background-color: #1EB954;
  border-color: #1EB954;
}

.btn--call {
  background-color: var(--color-secondary);
  color: #fff;
  border-color: var(--color-secondary);
}

.btn--call:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
  transition: box-shadow 0.3s ease;
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

.header__logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header__logo span {
  color: var(--color-accent);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.header__nav a {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--color-muted);
  transition: color 0.2s;
  position: relative;
}

.header__nav a:hover,
.header__nav a.active {
  color: var(--color-primary);
}

.header__nav a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
}

.header__cta {
  margin-left: 0.5rem;
}

.header__mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-primary);
}

.header__mobile-toggle svg {
  width: 28px;
  height: 28px;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-surface);
  z-index: 999;
  padding: var(--spacing-lg) var(--spacing-md);
  flex-direction: column;
  gap: var(--spacing-sm);
  overflow-y: auto;
}

.mobile-nav.open {
  display: flex;
}

.mobile-nav a {
  display: block;
  font-size: 1.1rem;
  font-weight: 500;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-primary);
}

.mobile-nav .btn {
  margin-top: var(--spacing-sm);
  text-align: center;
}

@media (max-width: 768px) {
  .header__nav {
    display: none;
  }
  .header__cta.desktop-only {
    display: none;
  }
  .header__mobile-toggle {
    display: block;
  }
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 520px;
  display: flex;
  align-items: center;
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
  margin-top: var(--header-height);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(31,41,51,0.88) 0%, rgba(31,41,51,0.6) 100%);
}

.hero--home {
  min-height: 600px;
}

.hero--page {
  min-height: 320px;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.hero__content h1 {
  color: var(--color-surface);
  margin-bottom: var(--spacing-sm);
}

.hero__content p {
  color: #CBD5E0;
  font-size: 1.15rem;
  margin-bottom: var(--spacing-md);
  max-width: 550px;
}

/* --- Trust Strip --- */
.trust-strip {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding-block: var(--spacing-md);
}

.trust-strip__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-md) var(--spacing-lg);
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
}

.trust-strip__icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 50%;
  color: var(--color-accent);
  flex-shrink: 0;
}

/* --- Stock Cards --- */
.stock-card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

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

.stock-card__image {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
  background: var(--color-border);
}

.stock-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.stock-card__tag {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  background: var(--color-primary);
  color: var(--color-surface);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-sm);
}

.stock-card__tag--highlight {
  left: auto;
  right: 0.75rem;
  background: var(--color-accent);
}

.stock-card__body {
  padding: var(--spacing-md);
}

.stock-card__meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-bottom: 0.4rem;
}

.stock-card__year {
  font-weight: 600;
  color: var(--color-secondary);
}

.stock-card__detail {
  background: var(--color-bg);
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
}

.stock-card__title {
  font-size: 1.15rem;
  margin-bottom: 0.4rem;
}

.stock-card__desc {
  font-size: 0.875rem;
  line-height: 1.5;
  margin-bottom: var(--spacing-sm);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.stock-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.stock-card__price {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
}

.no-results {
  grid-column: 1 / -1;
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-muted);
  font-size: 1.05rem;
}

/* --- Category Cards --- */
.category-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  min-height: 300px;
  display: flex;
  align-items: flex-end;
  background-size: cover;
  background-position: center;
}

.category-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,41,51,0.85) 0%, rgba(31,41,51,0.2) 100%);
}

.category-card__content {
  position: relative;
  z-index: 1;
  padding: var(--spacing-md);
  color: var(--color-surface);
  width: 100%;
}

.category-card__content h3 {
  color: var(--color-surface);
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.category-card__content p {
  color: #B0BEC5;
  font-size: 0.9rem;
  margin-bottom: var(--spacing-sm);
}

/* --- Icon Feature Cards --- */
.feature-card {
  background: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.feature-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 50%;
  color: var(--color-accent);
}

.feature-card h4 {
  margin-bottom: 0.35rem;
}

.feature-card p {
  font-size: 0.875rem;
  margin-inline: auto;
}

/* --- CTA Banner --- */
.cta-banner {
  background: var(--color-primary);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-surface);
  margin-bottom: 0.5rem;
}

.cta-banner p {
  color: #B0BEC5;
  margin-inline: auto;
  margin-bottom: var(--spacing-md);
}

.cta-banner .btn-group {
  justify-content: center;
}

/* --- Trade-In / Lead Section --- */
.lead-section {
  background: var(--color-secondary);
  padding: var(--spacing-xl) 0;
}

.lead-section__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.lead-section__text h2 {
  color: var(--color-surface);
}

.lead-section__text p {
  color: #B0BEC5;
  margin-top: var(--spacing-xs);
}

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

/* --- Forms --- */
.form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
}

.form__input,
.form__select,
.form__textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-dark);
  transition: border-color 0.2s;
  width: 100%;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(197, 139, 42, 0.15);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
}

@media (max-width: 480px) {
  .form__row {
    grid-template-columns: 1fr;
  }
}

.form--dark .form__label {
  color: #CBD5E0;
}

/* --- FAQ Accordion --- */
.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-primary);
  text-align: left;
}

.faq-item__question:hover {
  color: var(--color-accent);
}

.faq-item__icon {
  font-size: 1.25rem;
  transition: transform 0.3s;
  flex-shrink: 0;
  margin-left: 1rem;
}

.faq-item.open .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-item.open .faq-item__answer {
  max-height: 500px;
}

.faq-item__answer p {
  padding-bottom: var(--spacing-sm);
  font-size: 0.925rem;
}

/* --- Testimonial Cards --- */
.testimonial-card {
  background: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--color-accent);
}

.testimonial-card__text {
  font-style: italic;
  font-size: 0.95rem;
  color: var(--color-dark);
  margin-bottom: var(--spacing-sm);
  line-height: 1.65;
}

.testimonial-card__author {
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--color-primary);
}

/* --- Contact Cards --- */
.contact-card {
  background: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}

.contact-card:hover {
  box-shadow: var(--shadow-md);
}

.contact-card__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: 50%;
  color: var(--color-accent);
}

.contact-card h4 {
  margin-bottom: 0.35rem;
}

.contact-card p {
  font-size: 0.9rem;
  margin-inline: auto;
}

/* --- Filters --- */
.filters {
  background: var(--color-surface);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: var(--spacing-lg);
}

.filters__grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  align-items: flex-end;
}

.filters__group {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.filters__label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filters__btn {
  flex-shrink: 0;
  align-self: flex-end;
}

/* --- Footer --- */
.footer {
  background: var(--color-primary);
  color: #B0BEC5;
  padding-top: var(--spacing-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-lg);
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-surface);
  margin-bottom: var(--spacing-xs);
}

.footer__brand span {
  color: var(--color-accent);
}

.footer__desc {
  font-size: 0.875rem;
  line-height: 1.6;
  margin-bottom: var(--spacing-sm);
}

.footer h4 {
  color: var(--color-surface);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--spacing-sm);
}

.footer__links a {
  display: block;
  font-size: 0.875rem;
  padding: 0.25rem 0;
  transition: color 0.2s;
}

.footer__links a:hover {
  color: var(--color-accent);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
}

.footer__contact-item svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-sm) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
}

.footer__social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer__social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  transition: background 0.2s;
}

.footer__social a:hover {
  background: var(--color-accent);
}

/* --- Enquiry Modal --- */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.5rem;
  color: var(--color-muted);
  line-height: 1;
}

.modal__close:hover {
  color: var(--color-primary);
}

.modal h3 {
  margin-bottom: var(--spacing-sm);
}

.modal p {
  margin-bottom: var(--spacing-md);
  font-size: 0.9rem;
}

/* --- Map Placeholder --- */
.map-placeholder {
  width: 100%;
  height: 350px;
  background: var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* --- Page-specific: Trailer categories --- */
.trailer-cat {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s, transform 0.2s;
}

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

.trailer-cat__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border-radius: var(--radius-md);
  color: var(--color-secondary);
}

.trailer-cat h4 {
  margin-bottom: 0.3rem;
}

.trailer-cat p {
  font-size: 0.85rem;
  margin-inline: auto;
}

/* --- Utility --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* --- Responsive helpers --- */
@media (max-width: 768px) {
  .hero--home {
    min-height: 480px;
  }

  .hero--page {
    min-height: 240px;
  }

  .section {
    padding-block: var(--spacing-lg);
  }

  .section--lg {
    padding-block: var(--spacing-xl);
  }

  .grid--3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-xs);
    text-align: center;
  }
}

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

  .btn-group .btn {
    width: 100%;
  }

  .trust-strip__grid {
    justify-content: flex-start;
  }
}