/* ============================================================
   King & Queen — main stylesheet (v0.1.0)
   ============================================================ */

:root {
  --kq-base: #0B0B0D;
  --kq-surface: #141417;
  --kq-contrast: #F5F3EC;
  --kq-muted: #A7A29B;
  --kq-gold: #C9A24B;
  --kq-gold-light: #E8D18A;
  --kq-wine: #6E1A2B;
  --kq-gold-grad: linear-gradient(135deg, #E8D18A 0%, #C9A24B 55%, #9C7A2E 100%);
  --kq-hairline: rgba(201,162,75,0.28);
}

/* ---- base ---- */
body {
  background: var(--kq-base);
  color: var(--kq-contrast);
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Noto Serif JP", "Hiragino Mincho ProN", serif;
  line-height: 1.3;
  letter-spacing: 0.02em;
}

a { color: var(--kq-gold-light); text-decoration: none; }

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

.kq-gold-text {
  background: var(--kq-gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* エレメント共通：セクション見出しのアイブロウ */
.kq-eyebrow {
  display: inline-block;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.32em;
  color: var(--kq-gold);
  margin-bottom: 1rem;
}

.kq-section {
  padding-block: clamp(4rem, 9vw, 8rem);
  padding-inline: 1.25rem;
}
.kq-inner { max-width: 1120px; margin-inline: auto; }

/* ============================================================
   HEADER
   ============================================================ */
.kq-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
  background: rgba(11,11,13,0.72);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--kq-hairline);
}
.kq-header__logo img { height: 34px; width: auto; }
.kq-header__nav {
  display: flex; align-items: center; gap: 0.65rem;
}
.kq-lang {
  font-size: 0.8rem; color: var(--kq-muted); letter-spacing: 0.1em;
  display: flex; gap: 0.4rem; margin-right: 0.5rem;
}
.kq-lang a { color: var(--kq-muted); }
.kq-lang a.is-active { color: var(--kq-contrast); }

.kq-btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 700; font-size: 0.9rem;
  padding: 0.62rem 1.35rem; border-radius: 999px;
  transition: transform .18s ease, box-shadow .18s ease;
}
.kq-btn--ghost { color: var(--kq-contrast); border: 1px solid var(--kq-hairline); }
.kq-btn--gold {
  color: #201700; background: var(--kq-gold-grad);
  box-shadow: 0 6px 22px rgba(201,162,75,0.28);
}
.kq-btn:hover { transform: translateY(-1px); }
.kq-btn--gold:hover { box-shadow: 0 10px 30px rgba(201,162,75,0.4); }

/* ============================================================
   HERO
   ============================================================ */
.kq-hero {
  position: relative;
  min-height: 82vh;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center; gap: clamp(1.5rem, 4vw, 3.5rem);
  max-width: 1360px; margin-inline: auto;
  padding: clamp(3rem, 7vw, 6rem) clamp(1.25rem, 5vw, 3rem);
  overflow: hidden;
}
.kq-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 55% at 78% 30%, rgba(110,26,43,0.35), transparent 70%),
    radial-gradient(50% 50% at 12% 80%, rgba(201,162,75,0.14), transparent 70%);
}
.kq-hero__copy { max-width: 34ch; }
.kq-hero__title {
  font-size: clamp(2.3rem, 6vw, 4.3rem);
  font-weight: 700; line-height: 1.22; margin: 0 0 1.4rem;
}
.kq-hero__lead { color: var(--kq-muted); font-size: 1.02rem; margin-bottom: 2rem; }
.kq-hero__media { position: relative; }
.kq-hero__media img.kq-hero__photo {
  width: 100%; border-radius: 14px;
  border: 1px solid var(--kq-hairline);
  box-shadow: 0 30px 80px rgba(0,0,0,0.55);
}
.kq-hero__badge {
  position: absolute; right: -10px; bottom: -18px; width: 116px;
  filter: drop-shadow(0 8px 20px rgba(0,0,0,0.5));
}

/* ============================================================
   ABOUT
   ============================================================ */
.kq-about { background: var(--kq-surface); }
.kq-about__kq {
  display: flex; gap: 2rem; justify-content: center; align-items: center;
  margin: 1.5rem 0 3rem;
}
.kq-about__kq img { height: clamp(60px, 12vw, 104px); width: auto; }
.kq-about__body { max-width: 780px; margin-inline: auto; }
.kq-about__body p { color: #D9D5CC; margin-bottom: 1.3rem; }

/* ============================================================
   FLOW
   ============================================================ */
.kq-flow__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem; margin-top: 3rem;
}
.kq-step {
  position: relative;
  background: var(--kq-surface);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 14px; padding: 2.2rem 1.6rem 1.8rem;
  transition: border-color .2s ease, transform .2s ease;
}
.kq-step:hover { border-color: var(--kq-hairline); transform: translateY(-3px); }
.kq-step__no {
  position: absolute; top: -18px; left: 22px;
  font-family: "Noto Serif JP", serif; font-size: 2.4rem; font-weight: 700;
  background: var(--kq-gold-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.kq-step__icon { height: 56px; margin: 0.5rem 0 1.2rem; }
.kq-step__title { font-size: 1.15rem; margin: 0 0 0.5rem; }
.kq-step__desc { color: var(--kq-muted); font-size: 0.92rem; line-height: 1.7; }

/* ============================================================
   FAQ (details block)
   ============================================================ */
.kq-faq__list { max-width: 820px; margin: 3rem auto 0; }
.kq-faq details {
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 1.35rem 0.25rem;
}
.kq-faq summary {
  cursor: pointer; list-style: none; font-weight: 700;
  font-family: "Noto Serif JP", serif; font-size: 1.05rem;
  display: flex; align-items: flex-start; gap: 0.75rem;
}
.kq-faq summary::-webkit-details-marker { display: none; }
.kq-faq summary::before {
  content: "Q"; color: var(--kq-gold); font-weight: 700; flex: none;
}
.kq-faq details[open] summary { color: var(--kq-gold-light); }
.kq-faq details > *:not(summary) {
  color: var(--kq-muted); margin: 0.9rem 0 0 1.6rem; font-size: 0.95rem;
}

/* ============================================================
   PARTNERS (marquee)
   ============================================================ */
.kq-partners { background: var(--kq-surface); padding-block: 3.5rem; overflow: hidden; }
.kq-marquee { display: flex; overflow: hidden; user-select: none; -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.kq-marquee__track {
  display: flex; align-items: center; gap: 3.5rem; flex: none;
  padding-right: 3.5rem;
  animation: kq-scroll 32s linear infinite;
}
.kq-marquee__track img {
  height: 30px; width: auto; opacity: 0.72;
  filter: grayscale(1) brightness(1.6);
  transition: opacity .2s ease;
}
.kq-marquee:hover .kq-marquee__track { animation-play-state: paused; }
@keyframes kq-scroll { to { transform: translateX(-50%); } }

/* ============================================================
   FOOTER
   ============================================================ */
.kq-footer {
  border-top: 1px solid var(--kq-hairline);
  padding: 3.5rem clamp(1.25rem, 5vw, 3rem) 2.5rem;
}
.kq-footer__inner {
  max-width: 1120px; margin-inline: auto;
  display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between;
}
.kq-footer__logo img { height: 32px; margin-bottom: 1rem; }
.kq-footer__links { display: flex; gap: 2.5rem; flex-wrap: wrap; }
.kq-footer__links a { color: var(--kq-muted); font-size: 0.9rem; }
.kq-footer__links a:hover { color: var(--kq-contrast); }
.kq-footer__note {
  max-width: 1120px; margin: 2.5rem auto 0; padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  color: #6f6b64; font-size: 0.78rem; line-height: 1.7;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .kq-hero { grid-template-columns: 1fr; text-align: left; }
  .kq-hero__media { order: -1; }
  .kq-flow__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .kq-flow__grid { grid-template-columns: 1fr; }
  .kq-header__nav .kq-btn--ghost { display: none; }
  .kq-about__kq { gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  .kq-marquee__track { animation: none; }
  .kq-btn:hover, .kq-step:hover { transform: none; }
}