/* ============================================================
   Aman Iman — style.css
   ============================================================ */

.container {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 5vw, var(--space-16));
}

/* ---- Skip link ---- */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 200;
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
}
.skip-link:focus {
  top: var(--space-4);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1.5px solid transparent;
}
.btn span[lang="ja"] {
  font-family: var(--font-jp);
  font-weight: 500;
  opacity: 0.85;
  font-size: 0.92em;
}
.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn--ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}
.btn--lg {
  font-size: var(--text-base);
  padding: var(--space-4) var(--space-10);
  font-family: var(--font-body);
  letter-spacing: 0.02em;
}

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
}
.site-header.is-scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 4.75rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--color-text);
}
.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.brand__name {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.brand__sub {
  font-family: var(--font-jp);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  letter-spacing: 0.18em;
}
.brand-inline {
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: 0.08em;
}

/* ---- Nav ---- */
.nav__list {
  display: flex;
  gap: clamp(var(--space-6), 2.4vw, var(--space-12));
  list-style: none;
}
.nav__list a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: 500;
  position: relative;
  padding-block: var(--space-1);
}
.nav__list a span[lang="ja"] {
  font-family: var(--font-jp);
  font-size: 0.62rem;
  color: var(--color-text-faint);
  letter-spacing: 0.12em;
}
.nav__list a::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-interactive), left var(--transition-interactive);
}
.nav__list a:hover,
.nav__list a.is-active {
  color: var(--color-primary);
}
.nav__list a:hover::after,
.nav__list a.is-active::after {
  width: 100%;
  left: 0;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.lang-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding-inline: var(--space-3);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
}
.lang-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 2.5rem;
  height: 2.5rem;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
}
.nav-toggle__bar {
  width: 18px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-interactive), opacity var(--transition-interactive);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   GEOMETRIC PATTERN (subtle, restrained)
   ============================================================ */
.geo-pattern {
  background-image:
    repeating-linear-gradient(45deg, var(--pattern-ink) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(-45deg, var(--pattern-ink) 0 1px, transparent 1px 22px);
  background-size: 31px 31px;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  --color-accent: var(--color-primary);
  background:
    radial-gradient(circle at 18% 6%, rgba(255, 255, 255, 0.95) 0%, rgba(255, 255, 255, 0.34) 25%, transparent 54%),
    radial-gradient(circle at 78% 10%, rgba(169, 236, 242, 0.5) 0%, transparent 36%),
    linear-gradient(135deg, #f7fdfe 0%, #e5f6fa 42%, #cfeaf2 100%);
  color: var(--color-text);
  overflow: hidden;
  border-bottom: 1px solid var(--color-divider);
  min-height: calc(100svh - 4.75rem);
  display: flex;
  align-items: center;
}
.hero__pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(0, 113, 135, 0.08) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(-45deg, rgba(0, 127, 154, 0.06) 0 1px, transparent 1px 28px);
  background-size: 37px 37px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 70% 30%, #000 0%, transparent 75%);
  mask-image: radial-gradient(ellipse 80% 70% at 70% 30%, #000 0%, transparent 75%);
  opacity: 1;
  pointer-events: none;
}
.hero__inner {
  position: relative;
  padding-block: clamp(7rem, 18vh, 8rem) clamp(var(--space-20), 14vh, var(--space-32));
  max-width: 56rem;
  width: 100%;
}
.hero__eyebrow {
  font-size: var(--text-sm);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-family: var(--font-jp);
  margin-bottom: var(--space-5);
}
html[lang="en"] .hero__eyebrow,
html[lang="en"] .footer__tag {
  font-family: var(--font-body);
}
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4.25rem, 9vw, 8.25rem);
  font-weight: 500;
  line-height: 0.98;
  margin-bottom: var(--space-6);
}
.hero__title span[lang="ja"] {
  display: block;
  font-family: var(--font-jp);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.hero__title-en {
  display: block;
  color: var(--color-primary-active);
  font-style: italic;
  font-size: 0.62em;
  margin-top: var(--space-3);
  font-weight: 400;
}
.hero__lede {
  font-size: var(--text-lg);
  color: var(--color-text);
  margin-bottom: var(--space-4);
  max-width: 60ch;
}
.hero__lede[lang], .hero__lede span[lang="ja"] {
  font-family: var(--font-jp);
}
.hero__lede--en {
  font-family: var(--font-body);
  color: var(--color-text-muted);
  font-size: var(--text-base);
}
.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-block: var(--space-10) var(--space-8);
}
.hero__cta .btn--ghost {
  color: var(--color-text);
  border-color: var(--color-border);
  background: color-mix(in oklab, var(--color-surface) 62%, transparent);
}
.hero__cta .btn--ghost:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}
.hero__gloss {
  font-family: var(--font-jp);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-left: 2px solid var(--color-accent);
  padding-left: var(--space-4);
  margin-top: var(--space-8);
  max-width: 54ch;
}
.hero__gloss-en {
  display: block;
  font-family: var(--font-body);
  font-style: italic;
  margin-top: var(--space-1);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  padding-block: clamp(var(--space-20), 9vw, var(--space-32));
}
.section--alt {
  background: var(--color-surface);
  border-block: 1px solid var(--color-divider);
}
.section-head {
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-16));
  max-width: var(--content-default);
}
.kicker {
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-3);
}
.kicker--light {
  color: var(--color-accent);
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.75rem);
  font-weight: 500;
  line-height: 0.98;
}
.section-title span[lang="ja"] {
  display: block;
  font-family: var(--font-jp);
  font-weight: 700;
}
.section-title__en {
  display: block;
  font-size: 0.5em;
  color: var(--color-text-muted);
  font-style: italic;
  font-weight: 400;
  margin-top: var(--space-2);
}
.section-lede {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 62ch;
  margin-bottom: clamp(var(--space-8), 4vw, var(--space-12));
}
.section-lede span[lang="ja"] {
  display: block;
  font-family: var(--font-jp);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.section-lede__en {
  font-style: italic;
  font-size: 0.88em;
}
.section-lede--center {
  margin-inline: auto;
  text-align: center;
}

/* ---- About: prose + pillars ---- */
.prose-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  align-items: start;
}
.prose-grid--reverse {
  grid-template-columns: 1fr 0.75fr;
}
.prose p {
  margin-bottom: var(--space-5);
  color: var(--color-text-muted);
}
.prose p[lang="ja"] {
  font-family: var(--font-jp);
  color: var(--color-text);
}
.pillars {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  position: relative;
}
.pillar {
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-divider);
}
.pillar:last-child {
  padding-bottom: 0;
  border-bottom: none;
}
.pillar__jp {
  font-family: var(--font-jp);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-right: var(--space-2);
}
.pillar__en {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-accent);
}
.pillar p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ---- Vision: card grid ---- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
}
.card {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
}
.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary);
}
.card__title {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.card__title span[lang="ja"] {
  font-family: var(--font-jp);
  font-weight: 700;
  display: block;
}
.card__en {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-accent);
  font-size: 0.82em;
}
.card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ---- Mission: deep section ---- */
.section--deep {
  --color-accent: var(--color-primary);
  background:
    radial-gradient(circle at 10% 0%, rgba(255, 255, 255, 0.84) 0%, transparent 38%),
    linear-gradient(135deg, #f8fdfe 0%, var(--color-deep) 54%, #ccebf2 100%);
  color: var(--color-text);
  position: relative;
  border-block: 1px solid var(--color-divider);
}
.section--deep .section-title {
  color: var(--color-text);
}
.section--deep .section-title__en {
  color: var(--color-text-muted);
}
.mission-list {
  display: grid;
  gap: var(--space-2);
  list-style: none;
  max-width: var(--content-default);
}
.mission-item {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: var(--space-5);
  align-items: baseline;
  padding-block: var(--space-6);
  border-bottom: 1px solid var(--color-divider);
}
.mission-item:last-child {
  border-bottom: none;
}
.mission-item__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-xl);
  color: var(--color-accent);
}
.mission-item__title {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  margin-bottom: var(--space-2);
  color: var(--color-text);
}
.mission-item__title span[lang="ja"] {
  font-family: var(--font-jp);
  font-weight: 700;
}
.mission-item p {
  color: var(--color-text-muted);
}
.mission-item p[lang="ja"] {
  font-family: var(--font-jp);
  color: var(--color-text);
  margin-bottom: var(--space-1);
}
.mission-item__en {
  font-size: var(--text-sm);
  font-style: italic;
}

/* ---- Focus grid ---- */
.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-5);
}
.focus-card {
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background:
    linear-gradient(var(--color-surface-2), var(--color-surface-2)) padding-box,
    linear-gradient(135deg, var(--color-accent-soft), transparent) border-box;
  border-top: 3px solid var(--color-accent);
}
.focus-card h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}
.focus-card h3 span[lang="ja"] {
  font-family: var(--font-jp);
  font-weight: 700;
  display: block;
}
.focus-card__en {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-primary);
  font-size: 0.82em;
}
.focus-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.focus-card p[lang="ja"] {
  font-family: var(--font-jp);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.focus-card__copy-en {
  font-style: italic;
}

/* ---- Seafoods Fukui ---- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-content: start;
}
.tag {
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: var(--color-primary-soft);
  color: var(--color-primary-active);
  border: 1px solid color-mix(in oklab, var(--color-primary) 30%, transparent);
}
.tag span[lang="ja"] {
  font-family: var(--font-jp);
  font-weight: 700;
  margin-right: var(--space-1);
}
[data-theme="dark"] .tag {
  color: var(--color-primary-active);
}
.note {
  margin-top: clamp(var(--space-8), 4vw, var(--space-12));
  font-family: var(--font-jp);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: var(--space-4) var(--space-5);
  border-left: 3px solid var(--color-accent);
  background: var(--color-surface-2);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  max-width: var(--content-default);
}
.note__en {
  display: block;
  font-family: var(--font-body);
  font-style: italic;
  margin-top: var(--space-1);
  color: var(--color-text-faint);
}

/* ---- Contact ---- */
.section--contact {
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
}
.contact__inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.contact__inner .section-title {
  margin-bottom: var(--space-4);
}
.contact__loc {
  margin-top: var(--space-6);
  font-family: var(--font-jp);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.06em;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  --color-accent: var(--color-primary);
  background:
    linear-gradient(180deg, var(--color-surface) 0%, var(--color-deep) 100%);
  color: var(--color-text);
  padding-block: var(--space-12);
  border-top: 1px solid var(--color-divider);
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}
.footer__brand {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text);
}
.footer__tag {
  font-family: var(--font-jp);
  color: var(--color-primary-active);
  font-size: var(--text-sm);
}
.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

[data-theme="dark"] .hero {
  --color-accent: var(--color-accent-on-deep);
  background:
    radial-gradient(circle at 18% 6%, rgba(154, 229, 239, 0.16) 0%, transparent 38%),
    linear-gradient(135deg, #071218 0%, #05273f 100%);
  color: var(--color-text);
  border-bottom-color: var(--color-divider);
}
[data-theme="dark"] .hero__pattern {
  background-image:
    repeating-linear-gradient(45deg, rgba(154, 229, 239, 0.12) 0 1px, transparent 1px 28px),
    repeating-linear-gradient(-45deg, rgba(120, 214, 229, 0.08) 0 1px, transparent 1px 28px);
}
[data-theme="dark"] .hero__title-en,
[data-theme="dark"] .hero__eyebrow,
[data-theme="dark"] .hero__cta .btn--ghost:hover {
  color: var(--color-accent);
}
[data-theme="dark"] .section--deep {
  --color-accent: var(--color-accent-on-deep);
  background:
    radial-gradient(circle at 12% 0%, rgba(154, 229, 239, 0.12) 0%, transparent 38%),
    linear-gradient(135deg, #071218 0%, #05273f 100%);
}
[data-theme="dark"] .site-footer {
  --color-accent: var(--color-accent-on-deep);
  background: linear-gradient(180deg, var(--color-surface) 0%, #05273f 100%);
}
[data-theme="dark"] .footer__tag {
  color: var(--color-accent);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) .hero {
    --color-accent: var(--color-accent-on-deep);
    background:
      radial-gradient(circle at 18% 6%, rgba(154, 229, 239, 0.16) 0%, transparent 38%),
      linear-gradient(135deg, #071218 0%, #05273f 100%);
    color: var(--color-text);
    border-bottom-color: var(--color-divider);
  }
  :root:not([data-theme]) .hero__pattern {
    background-image:
      repeating-linear-gradient(45deg, rgba(154, 229, 239, 0.12) 0 1px, transparent 1px 28px),
      repeating-linear-gradient(-45deg, rgba(120, 214, 229, 0.08) 0 1px, transparent 1px 28px);
  }
  :root:not([data-theme]) .hero__title-en,
  :root:not([data-theme]) .hero__eyebrow,
  :root:not([data-theme]) .hero__cta .btn--ghost:hover {
    color: var(--color-accent);
  }
  :root:not([data-theme]) .section--deep {
    --color-accent: var(--color-accent-on-deep);
    background:
      radial-gradient(circle at 12% 0%, rgba(154, 229, 239, 0.12) 0%, transparent 38%),
      linear-gradient(135deg, #071218 0%, #05273f 100%);
  }
  :root:not([data-theme]) .site-footer {
    --color-accent: var(--color-accent-on-deep);
    background: linear-gradient(180deg, var(--color-surface) 0%, #05273f 100%);
  }
  :root:not([data-theme]) .footer__tag {
    color: var(--color-accent);
  }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .nav {
    position: fixed;
    inset: 4.75rem 0 auto 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-divider);
    box-shadow: var(--shadow-lg);
    transform: translateY(-120%);
    transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
    visibility: hidden;
  }
  .nav.is-open {
    transform: translateY(0);
    visibility: visible;
  }
  .nav__list {
    flex-direction: column;
    gap: 0;
    padding: var(--space-4) clamp(var(--space-5), 5vw, var(--space-16));
  }
  .nav__list li {
    border-bottom: 1px solid var(--color-divider);
  }
  .nav__list li:last-child {
    border-bottom: none;
  }
  .nav__list a {
    flex-direction: row;
    align-items: baseline;
    justify-content: flex-start;
    gap: var(--space-3);
    padding-block: var(--space-4);
    font-size: var(--text-base);
  }
  .nav__list a::after {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .prose-grid,
  .prose-grid--reverse {
    grid-template-columns: 1fr;
  }
  .prose-grid--reverse .tag-list {
    order: 2;
  }
}

@media (max-width: 520px) {
  .brand__sub {
    display: none;
  }
  .hero__title {
    font-size: clamp(3.25rem, 17vw, 4.7rem);
  }
  .section-title {
    font-size: clamp(2.5rem, 13vw, 3.8rem);
  }
  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  .hero__cta .btn {
    justify-content: center;
  }
}