/* =========================================================================
   Used Cars Japan — design system
   Tokens reproduced from the supplied Stitch export (DESIGN.md + the
   embedded Tailwind config actually rendered in the shipped HTML). Built
   on top of Bootstrap 5's grid/utilities; everything visual here is custom.
   ========================================================================= */

:root {
  /* Brand colors */
  --color-primary: #001548;
  --color-primary-container: #1a2f66;
  --color-on-primary: #ffffff;
  --color-primary-fixed: #b5c4ff;
  --color-primary-fixed-dim: #d8e2ff;

  --color-secondary: #bc000e;
  --color-secondary-container: #ea0014;
  --color-on-secondary: #ffffff;
  --color-secondary-fixed: #ffdad5;
  --color-secondary-fixed-dim: #ffb4aa;

  --color-tertiary: #0b1932;
  --color-tertiary-container: #16264a;
  --color-on-tertiary: #ffffff;
  --color-on-tertiary-container: #c7cede;

  --color-surface: #f9f9ff;
  --color-surface-container-lowest: #ffffff;
  --color-surface-container-low: #f3f3fa;
  --color-surface-container: #edeef5;
  --color-surface-container-high: #e7e8f0;
  --color-surface-container-highest: #e1e2ea;

  --color-on-surface: #151c29;
  --color-on-surface-variant: #444651;
  --color-outline: #757682;
  --color-outline-variant: #c6c6d0;

  /* Typography */
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-jp: 'Noto Sans JP', 'Inter', sans-serif;

  --fs-display-hero: 2.75rem;
  --fs-headline-xl: 2.25rem;
  --fs-headline-lg: 1.75rem;
  --fs-headline-md: 1.375rem;
  --fs-headline-sm: 1.125rem;
  --fs-body-lg: 1.125rem;
  --fs-body-md: 0.95rem;
  --fs-body-sm: 0.8125rem;
  --fs-label-code: 0.75rem;
  --fs-label-jp-tag: 0.6875rem;
  --fs-label-sm: 0.6875rem;

  /* Radius */
  --radius-sm: 0.125rem;
  --radius-md: 0.25rem;
  --radius-lg: 0.5rem;
  --radius-xl: 0.75rem;
  --radius-full: 999px;

  /* Spacing rhythm */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --gutter: 1.5rem;

  --shadow-sm: 0 1px 2px rgba(11, 25, 50, 0.08), 0 1px 3px rgba(11, 25, 50, 0.08);
  --shadow-md: 0 4px 10px rgba(11, 25, 50, 0.12), 0 2px 4px rgba(11, 25, 50, 0.08);
  --shadow-lg: 0 10px 25px rgba(11, 25, 50, 0.16);
}

@media (max-width: 767.98px) {
  :root {
    --gutter: 0.75rem;
    --space-xl: 2.5rem;
    --space-lg: 1.75rem;
    --fs-display-hero: 2rem;
    --fs-headline-xl: 1.65rem;
    --fs-headline-lg: 1.4rem;
  }
}

/* =========================================================================
   Base
   ========================================================================= */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--fs-body-md);
  color: var(--color-on-surface);
  background-color: var(--color-surface);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-on-surface);
  margin: 0;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-secondary); }

.container-ucj {
  max-width: 1320px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Visible keyboard focus everywhere (accessibility) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.btn:focus-visible {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

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

/* =========================================================================
   Typography helpers
   ========================================================================= */
.text-display-hero { font-family: var(--font-display); font-size: var(--fs-display-hero); font-weight: 700; line-height: 1.05; letter-spacing: -0.01em; }
.text-headline-xl { font-family: var(--font-display); font-size: var(--fs-headline-xl); font-weight: 700; line-height: 1.1; letter-spacing: -0.01em; }
.text-headline-lg { font-family: var(--font-display); font-size: var(--fs-headline-lg); font-weight: 600; line-height: 1.15; }
.text-headline-md { font-family: var(--font-display); font-size: var(--fs-headline-md); font-weight: 600; line-height: 1.2; }
.text-headline-sm { font-family: var(--font-display); font-size: var(--fs-headline-sm); font-weight: 600; line-height: 1.25; }
.text-body-lg { font-size: var(--fs-body-lg); }
.text-body-sm { font-size: var(--fs-body-sm); }
.text-label-code {
  font-family: var(--font-display); font-size: var(--fs-label-code); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.text-label-jp {
  font-family: var(--font-jp); font-size: var(--fs-label-jp-tag); font-weight: 500; letter-spacing: 0.08em;
}
.text-label-sm { font-size: var(--fs-label-sm); text-transform: uppercase; letter-spacing: 0.04em; }

.text-primary-ucj { color: var(--color-primary); }
.text-secondary-ucj { color: var(--color-secondary); }
.text-on-surface-variant { color: var(--color-on-surface-variant); }
.text-outline-ucj { color: var(--color-outline); }

/* =========================================================================
   Navbar
   ========================================================================= */
.navbar-ucj {
  background-color: var(--color-surface-container-lowest);
  box-shadow: var(--shadow-sm);
  padding-block: 0.75rem;
}
.navbar-ucj { padding-block: 0.5rem; }
.navbar-ucj .navbar-ucj-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; width: 100%; }
.navbar-ucj .navbar-brand { display: flex; align-items: center; padding: 0; margin-right: 1rem; }
.navbar-ucj .navbar-brand img { height: 64px; width: auto; object-fit: contain; }
.navbar-ucj .nav-link { white-space: nowrap; }
.navbar-ucj .navbar-quote { white-space: nowrap; padding: 0.6rem 1.25rem; }
@media (max-width: 991.98px) {
  .navbar-ucj .navbar-brand img { height: 52px; }
  .navbar-ucj .navbar-collapse { padding-block: 0.75rem; }
  .navbar-ucj .navbar-quote { width: 100%; margin-top: 0.5rem; }
}
.navbar-ucj .brand-name { font-family: var(--font-display); font-weight: 700; color: var(--color-primary); font-size: 1.15rem; line-height: 1.1; }
.navbar-ucj .brand-sub { font-family: var(--font-jp); font-size: 0.65rem; letter-spacing: 0.08em; color: var(--color-outline); display: block; }

.navbar-ucj .nav-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-on-surface-variant);
  padding: 0.5rem 0.9rem;
  border-radius: var(--radius-md);
}
.navbar-ucj .nav-link:hover,
.navbar-ucj .nav-link:focus-visible { color: var(--color-primary); background-color: var(--color-surface-container-low); }
.navbar-ucj .nav-link.active { color: var(--color-primary); position: relative; }
.navbar-ucj .nav-link.active::after {
  content: ''; position: absolute; left: 0.9rem; right: 0.9rem; bottom: 0.15rem;
  height: 2px; background-color: var(--color-secondary); border-radius: var(--radius-full);
}

/* =========================================================================
   Buttons
   ========================================================================= */
.btn-ucj {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--fs-headline-sm);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
}
.btn-ucj-primary { background-color: var(--color-secondary); color: var(--color-on-secondary); box-shadow: var(--shadow-md); }
.btn-ucj-primary:hover { background-color: var(--color-secondary-container); color: var(--color-on-secondary); transform: translateY(-1px); }
.btn-ucj-navy { background-color: var(--color-primary); color: var(--color-on-primary); }
.btn-ucj-navy:hover { background-color: var(--color-primary-container); color: var(--color-on-primary); transform: translateY(-1px); }
.btn-ucj-outline { background-color: transparent; color: var(--color-on-primary); border-color: rgba(255, 255, 255, 0.5); }
.btn-ucj-outline:hover { background-color: rgba(255, 255, 255, 0.12); color: var(--color-on-primary); }
.btn-ucj-outline-light { background: rgba(255,255,255,0.08); color: var(--color-on-primary); border-color: rgba(255,255,255,0.35); backdrop-filter: blur(4px); }

/* =========================================================================
   Sections / surfaces
   ========================================================================= */
.section-ucj { padding-block: var(--space-xl); }
.section-surface-low { background-color: var(--color-surface-container-low); }
.section-navy { background-color: var(--color-primary); color: var(--color-on-primary); }
.section-tertiary { background-color: var(--color-tertiary); color: var(--color-on-tertiary); }

.jp-tag {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-jp); font-size: var(--fs-label-jp-tag); font-weight: 600;
  letter-spacing: 0.08em; color: var(--color-secondary);
  background: rgba(188, 0, 14, 0.08);
  padding: 0.35rem 0.85rem; border-radius: var(--radius-full);
}
.jp-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--color-secondary); }
.jp-tag.jp-tag-on-dark { color: var(--color-secondary-fixed); background: rgba(255,255,255,0.08); }

/* =========================================================================
   Hero
   ========================================================================= */
.hero-ucj {
  position: relative;
  overflow: hidden;
  background-color: var(--color-primary);
  color: var(--color-on-primary);
  padding-block: var(--space-xl);
}
.hero-ucj .hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  opacity: 0.32;
}
.hero-ucj .hero-overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(110deg, var(--color-primary) 10%, rgba(0,21,72,0.9) 55%, rgba(11,25,50,0.75) 100%);
}
.hero-ucj .hero-content { position: relative; z-index: 2; }
.hero-ucj h1, .hero-ucj h2 { color: var(--color-on-primary); }
.hero-ucj .hero-glow {
  position: absolute; z-index: 0; width: 420px; height: 420px; border-radius: 50%;
  background: rgba(188, 0, 14, 0.18); filter: blur(70px); right: -120px; top: -120px; pointer-events: none;
}

/* =========================================================================
   Cards
   ========================================================================= */
.card-ucj {
  background-color: var(--color-surface-container-lowest);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
}
.card-ucj-flush { padding: 0; overflow: hidden; }

.category-card { position: relative; border-radius: var(--radius-xl); overflow: hidden; box-shadow: var(--shadow-sm); height: 100%; }
.category-card img { width: 100%; height: 260px; object-fit: cover; display: block; }
.category-card .category-icon-plate {
  width: 240px; height: 260px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(145deg, var(--color-primary), var(--color-tertiary));
  color: var(--color-primary-fixed);
}
.category-card .category-icon-plate .material-symbols-outlined { font-size: 64px; }
.category-card .category-overlay {
  position: absolute; inset: 0; background: linear-gradient(0deg, rgba(11,25,50,0.92) 0%, rgba(11,25,50,0.1) 55%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end; padding: var(--space-md); color: #fff;
}
.category-card .category-tag {
  font-family: var(--font-jp); font-size: var(--fs-label-jp-tag); letter-spacing: 0.08em;
  color: var(--color-secondary-fixed); margin-bottom: 0.25rem; display: block;
}

.timeline-step {
  background-color: var(--color-surface-container-lowest);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
  height: 100%;
}
.timeline-step .step-number {
  font-family: var(--font-display); font-weight: 700; font-size: var(--fs-label-code);
  color: var(--color-secondary);
}

/* =========================================================================
   FAQ accordion
   ========================================================================= */
.faq-item { border-bottom: 1px solid var(--color-outline-variant); }
.faq-toggle {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.1rem 0.25rem; font-family: var(--font-display); font-weight: 600; font-size: var(--fs-headline-sm);
  color: var(--color-on-surface);
}
.faq-icon { transition: transform 0.2s ease; flex-shrink: 0; color: var(--color-secondary); }
.faq-content { padding: 0 0.25rem 1.1rem; color: var(--color-on-surface-variant); }
.faq-content[hidden] { display: none; }

/* =========================================================================
   Table of contents (Import Policy)
   ========================================================================= */
.toc-card { background: var(--color-surface-container-lowest); border-radius: var(--radius-xl); box-shadow: var(--shadow-sm); padding: var(--space-md); }
.toc-link {
  display: flex; align-items: center; justify-content: space-between; gap: 0.5rem;
  padding: 0.5rem 0.6rem; border-radius: var(--radius-md); color: var(--color-on-surface-variant);
  font-size: var(--fs-body-sm); transition: background-color 0.15s ease, color 0.15s ease;
}
.toc-link:hover { background-color: var(--color-surface-container-low); color: var(--color-primary); }
.toc-link.active { background-color: var(--color-primary); color: #fff; font-weight: 600; }
.policy-section {
  background-color: var(--color-surface-container-lowest);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md);
  scroll-margin-top: 6.5rem;
}
.policy-section h2 { font-size: var(--fs-headline-lg); color: var(--color-primary); font-weight: 700; margin-bottom: 0.75rem; }
.policy-section p, .policy-section li { color: var(--color-on-surface); }
.policy-section ul { padding-left: 1.25rem; }

/* =========================================================================
   Forms
   ========================================================================= */
.form-ucj label { font-family: var(--font-display); font-size: var(--fs-label-code); font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-on-surface-variant); }
.form-ucj .form-control, .form-ucj .form-select {
  background-color: var(--color-surface-container-low);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: 0.65rem 0.85rem;
}
.form-ucj .form-control:focus, .form-ucj .form-select:focus {
  background-color: var(--color-surface-container-lowest);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 0.2rem rgba(0, 21, 72, 0.15);
}
.form-ucj .invalid-feedback { display: none; color: var(--color-secondary); font-size: var(--fs-body-sm); }
.form-ucj .is-invalid ~ .invalid-feedback,
.form-ucj .is-invalid.invalid-feedback { display: block; }
.form-ucj .is-invalid { border-color: var(--color-secondary) !important; }

.alert-ucj-success { background: #e6f4ea; color: #1e4620; border: 1px solid #b7dfc1; border-radius: var(--radius-lg); padding: var(--space-md); }
.alert-ucj-error { background: #fdeceb; color: #6b1410; border: 1px solid #f3b9b3; border-radius: var(--radius-lg); padding: var(--space-md); }
.alert-ucj-pending { background: #fff6e0; color: #6b4f00; border: 1px solid #f0dd9a; border-radius: var(--radius-lg); padding: var(--space-md); }

/* honeypot field: hidden from sighted users, still reachable by bots/scrapers */
.hp-field { position: absolute; left: -9999px; top: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* =========================================================================
   Footer
   ========================================================================= */
.footer-ucj { background-color: var(--color-tertiary); color: var(--color-on-tertiary); }
.footer-ucj a { color: var(--color-on-tertiary-container); }
.footer-ucj a:hover { color: #fff; }
.footer-ucj h3 { font-size: var(--fs-headline-sm); color: #fff; border-bottom: 1px solid var(--color-tertiary-container); padding-bottom: 0.5rem; margin-bottom: 0.75rem; }
.footer-ucj .footer-logo-plate {
  background: var(--color-surface-container-lowest);
  border-radius: var(--radius-md);
  padding: 0.35rem 0.6rem;
  display: inline-flex;
  align-items: center;
}
.footer-ucj .footer-logo-plate img { height: 42px; width: auto; }
.footer-ucj .footer-bottom { border-top: 1px solid var(--color-tertiary-container); margin-top: var(--space-lg); padding-top: var(--space-md); }
.footer-ucj .draft-pill {
  font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 0.05em;
  color: var(--color-secondary-fixed-dim); border: 1px solid rgba(255,255,255,0.18);
  padding: 0.2rem 0.6rem; border-radius: var(--radius-full);
}

/* =========================================================================
   Misc utility
   ========================================================================= */
.pending-chip {
  display: inline-block; font-family: var(--font-display); font-size: 0.65rem; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--color-secondary); background: rgba(188,0,14,0.08);
  border-radius: var(--radius-full); padding: 0.15rem 0.6rem; margin-left: 0.4rem;
}

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 2000;
  background: var(--color-primary); color: #fff; padding: 0.75rem 1.25rem; border-radius: 0 0 var(--radius-md) 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* =========================================================================
   Designed banners (artwork contains its own text - shown uncropped)
   ========================================================================= */
.banner-ucj { background-color: var(--color-primary); line-height: 0; }
.banner-ucj img { display: block; width: 100%; height: auto; }
.banner-fit { display: block; width: 100%; height: auto; aspect-ratio: 7 / 5; object-fit: cover; }
.category-card .category-media { position: relative; overflow: hidden; width: 100%; height: auto; aspect-ratio: 4 / 3; }
.category-card .category-media img { display: block; width: 100%; height: 100%; object-fit: cover; }