:root {
  --primary: #dc143c;
  --primary-dark: #b01030;

  --bg: #ffffff;
  --surface: #f8fafc;
  --surface-2: #ffffff;
  --text: #0f172a;
  --muted: #475569;
  --border: #e2e8f0;
  --shadow: 0 10px 25px rgba(2, 6, 23, 0.08);

  --header-bg: rgba(11, 15, 20, 0.92);
  --header-border: rgba(255, 255, 255, 0.08);
  --hero-overlay: rgba(0, 0, 0, 0.55);

  --radius: 14px;
  --radius-sm: 10px;

  --container: 1200px;

  --gap-1: 8px;
  --gap-2: 12px;
  --gap-3: 16px;
  --gap-4: 20px;
  --gap-5: 28px;
  --gap-6: 40px;

  --btn-h: 44px;

  --transition: 160ms ease;
  --transition-slow: 260ms ease;

  --focus: 0 0 0 4px rgba(220, 20, 60, 0.25);
}

html[data-theme="dark"] {
  --bg: #0b0f14;
  --surface: #0f1620;
  --surface-2: #0c121a;
  --text: #e6edf6;
  --muted: #a7b2c2;
  --border: rgba(255, 255, 255, 0.10);
  --shadow: 0 14px 35px rgba(0, 0, 0, 0.40);

  --header-bg: rgba(5, 8, 12, 0.92);
  --header-border: rgba(255, 255, 255, 0.10);
  --hero-overlay: rgba(0, 0, 0, 0.60);
}

/* Language (default ja) */
html { scroll-behavior: smooth; }
html[data-lang="ja"] .lang-ja { display: block; }
html[data-lang="ja"] .lang-en { display: none; }
html[data-lang="en"] .lang-ja { display: none; }
html[data-lang="en"] .lang-en { display: block; }

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Noto Sans JP", "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* Accessibility: skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 12px;
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  z-index: 2000;
  transition: top var(--transition);
}
.skip-link:focus { top: 12px; outline: none; box-shadow: var(--focus); }

.container {
  width: min(var(--container), calc(100% - 32px));
  margin-inline: auto;
}

.section { padding: 64px 0; }
.section--tight { padding: 52px 0; }

h1, h2, h3, h4 {
  font-family: "Montserrat", "Noto Sans JP", system-ui, sans-serif;
  letter-spacing: 0.2px;
  margin: 0 0 12px 0;
  line-height: 1.2;
}

h1 { font-size: clamp(1.75rem, 4.2vw, 3rem); }
h2 { font-size: clamp(1.35rem, 3.2vw, 2.1rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 14px 0; color: var(--muted); }

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

.section-title {
  display: grid;
  gap: 10px;
  justify-items: center;
  margin-bottom: 26px;
}
.section-title h2 { position: relative; padding-bottom: 12px; }
.section-title h2::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 0;
  width: 64px;
  height: 4px;
  background: var(--primary);
  border-radius: 999px;
}

/* Buttons */
.btn {
  height: var(--btn-h);
  padding: 0 18px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-family: "Montserrat", "Noto Sans JP", sans-serif;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition), border-color var(--transition);
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:focus { outline: none; box-shadow: var(--focus); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); box-shadow: var(--shadow); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,0.35);
  color: #fff;
}
html[data-theme="light"] .btn-outline {
  border-color: var(--border);
  color: var(--text);
}
.btn-outline:hover {
  border-color: var(--primary);
  color: #fff;
  background: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.btn-full { width: 100%; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  box-shadow: 0 8px 18px rgba(2,6,23,0.06);
}

html[data-theme="dark"] .chip {
  background: rgba(255,255,255,0.05);
  box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 1500;
  background: var(--header-bg);
  border-bottom: 1px solid var(--header-border);
  backdrop-filter: blur(10px);
}

/* FIX: keep header buttons clickable on desktop (nav overlap) */
.header-inner {
  position: relative;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 0 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 800;
    letter-spacing: 0.3px;
    font-size: 1.1rem;
    white-space: nowrap;
  }
.brand span { color: var(--primary); }


.header-actions {
  position: relative;
  z-index: 3;            /* FIX */
  flex: 0 0 auto;        /* FIX */
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Segmented controls */
.segmented {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
}
.segmented button {
  height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: #fff;
  font-weight: 800;
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
}
.segmented button:focus { outline: none; box-shadow: var(--focus); }
.segmented button[aria-pressed="true"] {
  background: var(--primary);
  color: #fff;
}

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background-color var(--transition);
}
.icon-btn:hover { background: rgba(255,255,255,0.16); }
.icon-btn:focus { outline: none; box-shadow: var(--focus); }

.nav-toggle { display: inline-flex; }
nav { display: none; }

/* Mobile drawer */
.drawer {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-slow);
  z-index: 1600;
}
.drawer[aria-hidden="true"] { pointer-events: none; } /* FIX: explicit */
.drawer[aria-hidden="false"] {
  opacity: 1;
  pointer-events: auto;
}
.drawer-panel {
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: min(360px, 88vw);
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  padding: calc(env(safe-area-inset-top) + 14px) 16px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.drawer[aria-hidden="false"] .drawer-panel {
  transform: translateX(0);
}
.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.drawer-title { font-weight: 900; }
.drawer-links {
  display: grid;
  gap: 10px;
  margin-top: 6px;
}
.drawer-links a {
  padding: 12px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.drawer-links a:focus { outline: none; box-shadow: var(--focus); }

/* Desktop nav */
@media (min-width: 960px) {
  .nav-toggle { display: none; }

  /* FIX: make nav a flex item and keep it from covering actions */
  nav {
    display: flex;             /* FIX (was block) */
    flex: 1 1 auto;            /* FIX */
    justify-content: flex-end; /* FIX */
    min-width: 0;              /* FIX */
  }

  .nav-links {
    display: flex;
    gap: 18px;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: nowrap;         /* FIX */
    white-space: nowrap;       /* FIX */
  }

  .nav-links a {
    color: #fff;
    font-weight: 800;
    padding: 10px 10px;
    border-radius: 10px;
    transition: color var(--transition), background-color var(--transition);
  }
  .nav-links a:hover { color: var(--primary); }
  .nav-links a:focus { outline: none; box-shadow: var(--focus); }
}

/* ==============================
   HERO – LAYOUT & SLIDESHOW
   ============================== */

.hero {
  min-height: calc(100svh - 64px);
  display: flex;
  align-items: center;
  padding: 44px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(var(--hero-overlay), var(--hero-overlay)),
    url("https://images.unsplash.com/photo-1555212697-194d92e6b4ab?auto=format&fit=crop&w=2200&q=80");
  background-size: cover;
  background-position: center;
}

.hero-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: stretch;
}

.hero-stack {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  text-align: center;
}

.hero-logo {
  width: 170px;
  max-width: 70vw;
  filter: drop-shadow(0 0 14px rgba(220,20,60,0.55)) drop-shadow(0 0 24px rgba(220,20,60,0.35));
}

@media (min-width: 960px) {
  .hero-stack {
    align-items: center;
    text-align: center;
  }
  .hero-logo {
    width: 220px; /* ~30% larger on desktop */
    max-width: 260px;
  }
}

/* Text block inside hero */
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 12px;
  justify-content: center;
  align-items: flex-start;
  text-align: left;
}

.hero p {
  color: rgba(255,255,255,0.85);
  max-width: 58ch;
}

/* Keep text readable when light-surface cards are placed inside hero */
.hero .card {
  color: var(--text);
}

.hero-actions {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  width: min(520px, 100%);
  margin-top: 6px;
}
@media (min-width: 520px) {
  .hero-actions { grid-template-columns: 1fr 1fr; }
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-start;
  margin-top: 10px;
}
.hero-badges .chip {
  color: #fff;
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
}
.hero-badges i { color: #fff; opacity: 0.9; }

/* Hero slider shell */
.hero-slider {
  position: relative;
  width: 100%;
  max-width: 520px;
  margin-inline: auto;
  border-radius: 20px;
  overflow: hidden;
  background: #020617;
  box-shadow: 0 18px 42px rgba(15,23,42,0.7);
}

.hero-slider-inner {
  position: relative;
  width: 100%;
  min-height: 240px;
}

.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transform: translateX(12px);
  pointer-events: none;
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.hero-slide.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}

.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}

/* If slides use background-image instead of <img> */
.hero-slide-bg {
  width: 100%;
  padding-top: 62%;
  background-color: #020617;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

/* Caption overlay inside slide */
.hero-slide-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 10px 18px 12px;
  background: linear-gradient(to top, rgba(0,0,0,0.82), transparent);
  font-size: 0.92rem;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-slide-caption-title {
  font-weight: 800;
}

.hero-slide-caption-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 10px;
  font-size: 0.82rem;
  opacity: 0.9;
}

/* Simple dots/nav (optional, only if used in HTML) */
.hero-dots {
  position: absolute;
  right: 14px;
  top: 14px;
  display: flex;
  gap: 6px;
}
.hero-dots button {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  border: none;
  padding: 0;
  background: rgba(255,255,255,0.35);
  cursor: pointer;
}
.hero-dots button[aria-current="true"] {
  background: #fff;
}

/* Hero responsive behaviour */
@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 36px 0 42px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 18px;
    text-align: center;
  }

  .hero-copy {
    align-items: center;
    text-align: center;
  }

  .hero p {
    max-width: 32rem;
  }

  .hero-slider {
    max-width: 480px;
  }

  .hero-slide-caption {
    text-align: center;
    align-items: center;
    padding-inline: 18px;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .hero-inner {
    gap: 16px;
  }

  .hero-copy {
    padding-inline: 4px;
  }

  .hero-slide-caption {
    padding-inline: 14px;
    font-size: 0.86rem;
  }
}

@media (min-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: center;
  }

  .hero-copy {
    max-width: 620px;
  }

  .hero-badges {
    justify-content: flex-start;
  }
}

/* Cards & grids */
.grid { display: grid; gap: 16px; }
.grid-cars { grid-template-columns: 1fr; }
.grid-features { grid-template-columns: 1fr; }

@media (min-width: 720px) {
  .grid-cars { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-features { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1060px) {
  .grid-cars { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .grid-features { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

.inventory-actions {
  display: flex;
  justify-content: center;
  margin-top: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(2,6,23,0.06);
  transition: transform var(--transition), box-shadow var(--transition);
}
html[data-theme="dark"] .card { box-shadow: 0 12px 28px rgba(0,0,0,0.38); }
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.card:focus-within { box-shadow: var(--shadow), var(--focus); }

.car-media {
  position: relative;
  background: #0b0f14;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.car-media img.car-media-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
}

/* Inventory cards (mobile) get a bit more vertical room to avoid overlap */
@media (max-width: 720px) {
  .car-media {
    min-height: 220px;
  }
}
.card-body {
  padding: 16px;
  display: grid;
  gap: 10px;
}

.price {
  color: var(--primary);
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: 0.2px;
}
.specs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  color: var(--muted);
  font-weight: 700;
  font-size: 0.92rem;
}
.specs span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.specs i { opacity: 0.9; }

/* Feature cards */
.feature-card {
  padding: 18px 14px;
  text-align: center;
  display: grid;
  gap: 8px;
  align-content: start;
}
.feature-icon {
  width: 54px;
  height: 54px;
  margin: 6px auto 0;
  border-radius: 18px;
  background: rgba(220,20,60,0.12);
  display: grid;
  place-items: center;
  border: 1px solid rgba(220,20,60,0.25);
}
.feature-icon i { font-size: 1.35rem; color: var(--primary); }

/* Testimonial */
.testimonial {
  max-width: 860px;
  margin: 0 auto;
  padding: 18px;
}
.quote {
  font-style: italic;
  color: var(--text);
  font-size: 1.02rem;
  line-height: 1.7;
}
.author {
  margin-top: 10px;
  font-weight: 900;
  color: var(--primary);
}

/* Skeleton loaders */
.skeleton {
  position: relative;
  overflow: hidden;
  background: linear-gradient(120deg, rgba(255,255,255,0.07), rgba(255,255,255,0.16), rgba(255,255,255,0.07));
  background-size: 200% 100%;
  animation: shimmer 1.1s infinite;
}
html[data-theme="light"] .skeleton {
  background: linear-gradient(120deg, #eef2f7, #e4e8ef, #eef2f7);
}

.skeleton-card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  box-shadow: 0 10px 24px rgba(2,6,23,0.04);
}
.skeleton-rect { height: 14px; margin-bottom: 10px; border-radius: 8px; }
.skeleton-rect.sm { width: 30%; }
.skeleton-rect.md { width: 70%; }
.skeleton-rect.lg { width: 90%; }
.skeleton-media {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: rgba(255,255,255,0.08);
}
html[data-theme="light"] .skeleton-media { background: #e9edf3; }

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
  margin-top: 18px;
  align-items: start;
}
@media (min-width: 980px) {
  .contact-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
}

.info-list {
  display: grid;
  gap: 12px;
  margin-top: 12px;
}
.info-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
}
.info-icon {
  width: 44px;
  height: 44px;
  border-radius: 999px;
  background: var(--primary);
  display: grid;
  place-items: center;
  color: #fff;
  flex: 0 0 auto;
}
.info-item h4 {
  margin: 0 0 4px 0;
  font-size: 1rem;
  color: var(--text);
}
.info-item p { margin: 0; color: var(--muted); }

form { display: grid; gap: 12px; }
.field { display: grid; gap: 6px; }
label {
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--text);
}
.control, select, textarea {
  width: 100%;
  min-height: var(--btn-h);
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  padding: 12px 12px;
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
textarea { min-height: 140px; resize: vertical; }
.control:focus, select:focus, textarea:focus { border-color: rgba(220,20,60,0.55); box-shadow: var(--focus); }

.form-row {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

/* Footer */
footer {
  background: linear-gradient(180deg, rgba(0,0,0,0.0), rgba(0,0,0,0.10));
  border-top: 1px solid var(--border);
  padding: 42px 0 28px;
}
.footer-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-brand {
  font-weight: 900;
  font-size: 1.25rem;
  margin-bottom: 10px;
}
.footer-brand span { color: var(--primary); }
.socials {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}
.socials a {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.socials a:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: rgba(220,20,60,0.35); }
.socials a:focus { outline: none; box-shadow: var(--focus); }

.footer-links ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.footer-links a {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  font-weight: 800;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.footer-links a:focus { outline: none; box-shadow: var(--focus); }

.copyright {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
  .card:hover { transform: none; }
  .btn-primary:hover, .btn-outline:hover { transform: none; }
}