/* =========================================================
   TENMA INTERNATIONAL — shared styles
   Design tokens (DESIGN.md) and the parts every page uses:
   header, menu overlay, buttons, badges, footer.
   Page-specific styles live in top.css / services.css.
   ========================================================= */

:root {
  /* Colors (DESIGN.md §2) */
  --color-bg-dark: #0A0A0A;
  --color-bg-dark-soft: #1A1A18;
  --color-bg-light: #F3F1EA;
  --color-bg-footer: #EFEDE6;
  --color-surface: #FFFFFF;
  --color-primary: #1B2A4A;
  --color-secondary: #C9A24B;
  --color-secondary-on-light: #8A6D2C;   /* gold text on light backgrounds (AA contrast) */
  --color-text-on-dark: #F5F5F0;
  --color-text-on-light: #1A1A18;
  --color-text-sub-on-dark: #D9D9D2;
  --color-text-sub-on-light: #4A4944;
  --color-text-muted-on-dark: #8C8C86;
  --color-text-muted-on-light: #6E6D66;
  --color-border-dark: #2A2A28;
  --color-border-light: #DCD7C8;

  /* Typography */
  --font-display: 'Cormorant Garamond', 'EB Garamond', 'Times New Roman', serif;
  --font-mincho: 'Shippori Mincho B1', '游明朝', 'Yu Mincho', 'Hiragino Mincho ProN', serif;
  --font-sans: 'Noto Sans JP', 'Hiragino Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, Menlo, monospace;

  /* Spacing (DESIGN.md §4) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 32px;
  --space-4: 64px;
  --space-5: 160px;
  --page-gutter: clamp(20px, 5vw, 72px);
  --content-max: 1256px;

  --ease: cubic-bezier(.45, 0, .55, 1);

  /* Focus ring: navy on light, gold on dark (DESIGN.md §7) */
  --focus-color: var(--color-primary);
}

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

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

body {
  margin: 0;
  font-family: var(--font-mincho);
  -webkit-font-smoothing: antialiased;
}

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

img { max-width: 100%; }

:focus-visible {
  outline: 1px solid var(--focus-color);
  outline-offset: 4px;
}

.is-dark { --focus-color: var(--color-secondary); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Wordmark ---------- */

.wordmark {
  display: inline-flex;
  flex-direction: column;
  gap: 6px;
}
.wordmark__main {
  font: 300 28px/1 var(--font-display);
  letter-spacing: .3em;
}
.wordmark__sub {
  font: 400 8px/1 var(--font-display);
  letter-spacing: .6em;
  color: var(--color-secondary-on-light);
}

/* ---------- Header ---------- */

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Solid white header used on inner pages */
.site-header--solid {
  gap: 20px 40px;
  padding: 26px var(--page-gutter);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-on-light);
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 28px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 16px 36px;
  font: 400 14px/1 var(--font-mincho);
  letter-spacing: .14em;
}
.site-nav a:not(.btn-reserve) { transition: color .3s; }
.site-nav a:not(.btn-reserve):hover { color: var(--color-secondary); }
.site-nav a[aria-current="page"]:not(.btn-reserve) {
  border-bottom: 1px solid currentColor;
  padding-bottom: 6px;
}

/* Language switch — pill variant (inner pages) */
.lang-pills {
  display: flex;
  align-items: center;
  gap: 6px;
  font: 400 12px/1 var(--font-display);
  letter-spacing: .14em;
}
.lang-pills a {
  padding: 6px 10px;
  border-radius: 9999px;
  transition: color .3s;
}
.lang-pills a:hover { color: var(--color-secondary-on-light); }
.lang-pills a[aria-current="true"] {
  padding: 6px 16px;
  background: var(--color-primary);
  color: #FFFFFF;
}

/* Hamburger */
.menu-toggle {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 26px;
  /* content-box (overriding the site-wide border-box default) so the padding below
     enlarges the tap target to 44x44 without shrinking the visible bars themselves;
     the matching negative margin keeps the header layout identical to an unpadded control. */
  box-sizing: content-box;
  padding: 18px 9px;
  margin: -18px -9px;
  background: none;
  border: 0;
  color: inherit;
  cursor: pointer;
}
.menu-toggle__bar {
  display: block;
  height: 1px;
  background: currentColor;
  transition: transform .4s var(--ease);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:first-child { transform: translateY(3.5px) rotate(20deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:last-child { transform: translateY(-3.5px) rotate(-20deg); }

/* On inner pages the full nav shows on desktop; the hamburger takes over below 1024px */
.site-header--solid .menu-toggle { display: none; }

@media (max-width: 1023px) {
  .site-header--solid .site-nav { display: none; }
  .site-header--solid .menu-toggle { display: flex; }
  .site-header--solid .site-header__brand { gap: 20px; }
}
@media (max-width: 639px) {
  .site-header--solid { padding-block: 20px; }
  .site-header--solid .wordmark__main { font-size: 22px; }
  .site-header--solid .lang-pills a { padding: 6px 6px; }
  .site-header--solid .lang-pills a[aria-current="true"] { padding: 6px 12px; }
}

/* ---------- Menu overlay (all pages) ---------- */

.site-menu {
  --focus-color: var(--color-secondary);
  position: fixed;
  inset: 0;
  z-index: 15;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 48px;
  background: rgba(10, 10, 10, .94);
  color: var(--color-text-on-dark);
  opacity: 0;
  transition: opacity .5s var(--ease);
}
.site-menu[hidden] { display: none; }
.site-menu.is-open { opacity: 1; }

.site-menu__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  font: 400 clamp(16px, 1.8vw, 20px)/1.8 var(--font-mincho);
  letter-spacing: .3em;
}
.site-menu__list a { transition: color .3s; }
.site-menu__list a:hover,
.site-menu__list a[aria-current="page"] { color: var(--color-secondary); }

.site-menu__reserve {
  font: 400 13px/1 var(--font-display);
  letter-spacing: .3em;
  color: var(--color-secondary);
  border-bottom: 1px solid var(--color-secondary);
  padding-bottom: 4px;
}

/* A solid header stays readable above the dark overlay */
body.is-menu-open { overflow: hidden; }

/* ---------- Buttons & badges (DESIGN.md §5) ---------- */

.btn-reserve {
  display: inline-block;
  background: var(--color-secondary);
  color: var(--color-bg-dark);
  border-radius: 9999px;
  padding: 12px 28px;
  font: 500 12px/1 var(--font-display);
  letter-spacing: .28em;
  transition: background-color .3s;
}
.btn-reserve:hover { background: #D7B566; }
/* On the reservation page itself the pill inverts (Booking Page C design) */
.btn-reserve[aria-current="page"] { background: var(--color-text-on-light); color: var(--color-secondary); }
.btn-reserve--lg {
  padding: 16px 44px;
  font-size: 13px;
  letter-spacing: .3em;
}

.btn-circle {
  width: 112px;
  height: 112px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .3);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font: 400 15px/1 var(--font-display);
  letter-spacing: .1em;
  color: var(--color-text-on-dark);
  transition: background-color .3s, border-color .3s;
}
.btn-circle:hover {
  background: rgba(201, 162, 75, .25);
  border-color: var(--color-secondary);
}

.badge {
  display: inline-block;
  align-self: flex-start;
  background: var(--color-primary);
  color: #FFFFFF;
  border-radius: 9999px;
  padding: 8px 20px;
  font: 400 13px/1 var(--font-mincho);
  letter-spacing: .12em;
}

/* ---------- Inner page base ---------- */

.page-inner {
  background: var(--color-bg-light);
  color: var(--color-text-on-light);
  font-family: var(--font-sans);
}

.is-dark { color: var(--color-text-on-dark); }

.container {
  max-width: var(--content-max);
  margin: 0 auto;
}

/* Page intro: eyebrow + h1 + lead (light) */
.page-intro {
  padding: clamp(64px, 9vw, 140px) var(--page-gutter) 48px;
}
.page-intro__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.page-intro__title {
  margin: 0;
  font: 400 clamp(30px, 3.6vw, 48px)/1.5 var(--font-mincho);
  letter-spacing: .08em;
  text-wrap: pretty;
}
.page-intro__lead {
  margin: 0;
  max-width: 620px;
  font: 400 16px/1.9 var(--font-mincho);
  letter-spacing: .08em;
  text-wrap: pretty;
}

.eyebrow {
  margin: 0;
  font: italic 400 17px/1 var(--font-display);
  letter-spacing: .12em;
  color: var(--color-text-muted-on-light);
}

.section-heading {
  margin: 0;
  font: 400 clamp(24px, 2.6vw, 32px)/1.6 var(--font-mincho);
  letter-spacing: .1em;
}

.num-label {
  font: 400 11px/1 var(--font-mono);
  letter-spacing: .2em;
  color: var(--color-secondary-on-light);
}

.text-link {
  display: inline-block;
  border-bottom: 1px solid currentColor;
  padding-bottom: 6px;
  font: 400 13px/1 var(--font-mincho);
  letter-spacing: .12em;
  transition: color .3s;
}
.text-link:hover { color: var(--color-secondary-on-light); }
.text-link--on-dark:hover { color: var(--color-secondary); }

.inline-link { border-bottom: 1px solid currentColor; }
.inline-link:hover { color: var(--color-secondary-on-light); }

/* CTA band (dark): ご予約・お問い合わせ */
.cta-band {
  background: var(--color-bg-dark);
  padding: clamp(64px, 9vw, 140px) var(--page-gutter);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}
.cta-band > p { margin: 0; }
.cta-band__eyebrow {
  font: 400 11px/1 var(--font-mono);
  letter-spacing: .3em;
  color: var(--color-text-muted-on-dark);
}
.cta-band__title { letter-spacing: .12em; }
.cta-band__text {
  font: 400 15px/1.9 var(--font-mincho);
  letter-spacing: .08em;
  color: var(--color-text-sub-on-dark);
}
.cta-band__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
}

/* Mobile booking bar (DESIGN.md §5) — only on pages with a booking form */
.booking-bar { display: none; }
@media (max-width: 639px) {
  .booking-bar {
    position: fixed;
    z-index: 10;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px var(--page-gutter) calc(12px + env(safe-area-inset-bottom));
    background: var(--color-surface);
    border-top: 1px solid var(--color-border-light);
  }
  .booking-bar__price {
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
    font: 400 11px/1.3 var(--font-mincho);
    color: var(--color-text-sub-on-light);
  }
  .booking-bar__price strong {
    font: 400 18px/1 var(--font-display);
    color: var(--color-text-on-light);
  }
  .has-booking-bar .site-footer { padding-bottom: 120px; }
}

/* ---------- Footer ---------- */

.site-footer {
  background: var(--color-bg-footer);
  color: var(--color-text-on-light);
  padding: clamp(64px, 8vw, 120px) var(--page-gutter) 40px;
}

.site-footer__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.site-footer__top {
  display: flex;
  flex-wrap: wrap;
  gap: 40px 64px;
}

.site-footer__identity {
  flex: 1 1 320px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.site-footer__identity .wordmark { gap: 8px; }
.site-footer__identity .wordmark__main { font-size: 32px; }
.site-footer__identity .wordmark__sub { font-size: 9px; }

.site-footer__tagline {
  margin: 0;
  font: 400 18px/1.8 var(--font-mincho);
  letter-spacing: .2em;
}
.site-footer__company {
  margin: 0;
  font: 400 11px/1.9 var(--font-mincho);
  letter-spacing: .06em;
  color: var(--color-text-sub-on-light);
}

.footer-sitemap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  font: 400 14px/1.6 var(--font-mincho);
  letter-spacing: .1em;
}
.footer-sitemap__head { font-weight: 500; }
.footer-sitemap__child { color: var(--color-text-sub-on-light); }
.footer-sitemap a { transition: color .3s; }
.footer-sitemap a:hover { color: var(--color-secondary-on-light); }

.site-footer__bottom {
  border-top: 1px solid var(--color-border-light);
  padding-top: 28px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.social {
  display: flex;
  align-items: center;
  gap: 14px;
}
.social__label {
  font: italic 400 15px/1 var(--font-display);
  letter-spacing: .1em;
  color: var(--color-text-muted-on-light);
}
.social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-text-on-light);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color .3s;
}
.social a:hover { background: var(--color-primary); }
.social svg { width: 18px; height: 18px; fill: #FFFFFF; }
.social .social__x svg { width: 16px; height: 16px; }

.legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 24px;
  font: 400 12px/1 var(--font-mincho);
  letter-spacing: .08em;
  color: var(--color-text-sub-on-light);
}
.legal a:hover { color: var(--color-secondary-on-light); }
.legal__copy {
  margin: 0;
  font-family: var(--font-display);
  font-size: 13px;
}

.to-top {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-text-on-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-on-light);
  transition: background-color .3s, color .3s;
}
.to-top:hover { background: var(--color-text-on-light); color: var(--color-surface); }
.to-top svg { width: 18px; height: 18px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}

/* Links without a destination yet (EN / 中文 pages, social accounts) */
a[aria-disabled="true"] { cursor: default; opacity: .45; }
.social a[aria-disabled="true"]:hover { background: var(--color-text-on-light); }

/* ---------- English pages ----------
   Wide letter-spacing suits Japanese; Latin text needs it much tighter. */
html[lang="en"] body { letter-spacing: 0; }
html[lang="en"] :is(.page-intro__title, .svc-intro__title, .section-heading, .svc-heading,
  .price-hero__title, .price-promise__title, .price-table__title, .form-done__title,
  .booking-step__title, .svc-diagram__statement, .cta-band__title) {
  letter-spacing: .02em;
}
html[lang="en"] :is(.page-intro__lead, .svc-intro__lead, .svc-lead, .site-footer__tagline,
  .hero__tagline, .site-menu__list, .site-nav, .footer-sitemap, .legal, .news-item__title,
  .car-card__name, .car-option__name, .price-row__name, .compare__note, .cta-band__text,
  .contact-info__label, .booking-step__note, .assist__name, .svc-corp-list__name, .svc-indiv-list__name) {
  letter-spacing: .03em;
}
html[lang="en"] .hero__tagline { letter-spacing: .12em; }
html[lang="en"] .site-menu__list { letter-spacing: .12em; }