/* ==========================================================
   NOIR - Snack Lounge / style.css
   黒を基調とした高級感のあるラウンジサイト
   ========================================================== */

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, ul, ol, li, figure, blockquote, dl, dd {
  margin: 0;
  padding: 0;
}
ul, ol { list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
input, textarea { font: inherit; }

/* ---------- Tokens ---------- */
:root {
  --color-bg: #0a0908;
  --color-bg-alt: #121110;
  --color-bg-elevated: #17140f;
  --color-line: rgba(201, 168, 106, 0.22);
  --color-line-soft: rgba(255, 255, 255, 0.08);
  --color-text: #ece7de;
  --color-text-dim: #a79f8f;
  --color-text-faint: #6f6a5f;
  --color-gold: #c9a86a;
  --color-gold-light: #e6d3a3;
  --color-gold-deep: #9c7e46;

  --font-serif-jp: "Shippori Mincho", "Noto Serif JP", serif;
  --font-serif-en: "Cormorant Garamond", "Shippori Mincho", serif;
  --font-sans: "Noto Sans JP", "Hiragino Kaku Gothic ProN", sans-serif;

  --container: 1120px;
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --section-pad: clamp(4.5rem, 10vw, 8rem);

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html {
  scroll-behavior: smooth;
  background: var(--color-bg);
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.is-nav-open { overflow: hidden; }

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

section { position: relative; }

@media (max-width: 640px) {
  .u-hide-sm { display: none; }
}

/* ---------- Typography helpers ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75em;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: clamp(0.85rem, 1.4vw, 1rem);
  letter-spacing: 0.32em;
  color: var(--color-gold);
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 2.2em;
  height: 1px;
  background: var(--color-gold-deep);
}

.section-head {
  text-align: center;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.section-head .eyebrow { margin-bottom: 1.1rem; }
.section-title {
  font-family: var(--font-serif-jp);
  font-weight: 500;
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  letter-spacing: 0.14em;
  color: var(--color-text);
}
.section-lead {
  margin-top: 1.1rem;
  color: var(--color-text-dim);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
}

.gold-divider {
  width: 46px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  margin: 1.4rem auto;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  padding: 0.95em 2.4em;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.02rem;
  letter-spacing: 0.08em;
  border: 1px solid var(--color-gold-deep);
  color: var(--color-gold-light);
  border-radius: 999px;
  transition: background 0.4s var(--ease), color 0.4s var(--ease), border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.btn:hover {
  background: var(--color-gold);
  color: #12100c;
  border-color: var(--color-gold);
  transform: translateY(-2px);
}
.btn--solid {
  background: linear-gradient(135deg, var(--color-gold-light), var(--color-gold-deep));
  color: #16130d;
  border-color: transparent;
}
.btn--solid:hover { color: #16130d; filter: brightness(1.08); }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================
   Header
   ========================================================== */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  padding: 1.35rem 0;
  transition: background 0.5s var(--ease), padding 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  background: rgba(10, 9, 8, 0.86);
  backdrop-filter: blur(10px);
  padding: 0.85rem 0;
  border-bottom-color: var(--color-line);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.5rem;
  letter-spacing: 0.18em;
  color: var(--color-gold-light);
}
.logo span { color: var(--color-text-dim); font-size: 0.65em; margin-left: 0.5em; letter-spacing: 0.1em; }

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.2rem, 2.6vw, 2.4rem);
}
.nav__link {
  font-size: 0.86rem;
  letter-spacing: 0.14em;
  color: var(--color-text-dim);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.3s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 100%; bottom: 0;
  height: 1px;
  background: var(--color-gold);
  transition: right 0.4s var(--ease);
}
.nav__link:hover { color: var(--color-gold-light); }
.nav__link:hover::after { right: 0; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 26px;
  z-index: 110;
}
.nav-toggle span {
  height: 1px;
  background: var(--color-gold-light);
  transition: transform 0.35s var(--ease), opacity 0.35s var(--ease);
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 2rem;
    background: rgb(8, 7, 6);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform 0.5s var(--ease), opacity 0.4s var(--ease);
    pointer-events: none;
  }
  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__link { font-size: 1.05rem; }
}

/* ==========================================================
   Hero
   ========================================================== */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 6rem;
  padding-bottom: clamp(3.5rem, 10vh, 5.5rem);
  overflow: hidden;
  background:
    radial-gradient(ellipse 60% 45% at 50% 18%, rgba(201, 168, 106, 0.10), transparent 60%),
    radial-gradient(ellipse 70% 60% at 20% 90%, rgba(120, 90, 40, 0.10), transparent 65%),
    radial-gradient(ellipse 70% 60% at 85% 100%, rgba(90, 70, 35, 0.08), transparent 65%),
    linear-gradient(180deg, #0a0908 0%, #0d0c0a 60%, #0a0908 100%);
}

.hero__lines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    repeating-linear-gradient(115deg, rgba(201,168,106,0.05) 0px, rgba(201,168,106,0.05) 1px, transparent 1px, transparent 90px);
  animation: hero-drift 40s linear infinite;
}
@keyframes hero-drift {
  0% { background-position: 0 0; }
  100% { background-position: 400px 200px; }
}

.hero__glow {
  position: absolute;
  width: min(70vw, 720px);
  aspect-ratio: 1;
  border-radius: 50%;
  top: 50%; left: 50%;
  transform: translate(-50%, -55%);
  background: radial-gradient(circle, rgba(201,168,106,0.14), transparent 70%);
  filter: blur(10px);
  pointer-events: none;
}

.hero__inner { position: relative; z-index: 2; }

.hero__eyebrow {
  font-family: var(--font-serif-en);
  font-style: italic;
  letter-spacing: 0.5em;
  font-size: 0.8rem;
  color: var(--color-gold);
  text-transform: uppercase;
}

.hero__title {
  margin-top: 1.4rem;
  font-family: var(--font-serif-jp);
  font-weight: 600;
  font-size: clamp(2.6rem, 9vw, 5.6rem);
  letter-spacing: 0.24em;
  color: var(--color-text);
  text-shadow: 0 0 40px rgba(201,168,106,0.12);
}
.hero__title small {
  display: block;
  margin-top: 0.9rem;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  letter-spacing: 0.5em;
  color: var(--color-text-dim);
}

.hero__copy {
  margin: 2.1rem auto 0;
  max-width: 32em;
  color: var(--color-text-dim);
  font-size: 0.98rem;
  letter-spacing: 0.06em;
  line-height: 2.1;
}

.hero__meta {
  margin-top: 2.6rem;
  display: flex;
  justify-content: center;
  gap: clamp(1.4rem, 4vw, 3rem);
  flex-wrap: wrap;
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
}
.hero__meta strong {
  display: block;
  color: var(--color-gold-light);
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  margin-bottom: 0.35rem;
}

.hero__cta { margin-top: 3rem; }

.scroll-cue {
  position: absolute;
  bottom: 2.4rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text-faint);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
}
.scroll-cue__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-gold), transparent);
  overflow: hidden;
  position: relative;
}
.scroll-cue__line::after {
  content: "";
  position: absolute;
  top: -100%; left: 0;
  width: 100%; height: 100%;
  background: var(--color-gold-light);
  animation: cue-drop 2.2s ease-in-out infinite;
}
@keyframes cue-drop {
  0% { top: -100%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

/* ==========================================================
   Concept
   ========================================================== */
.concept { padding: var(--section-pad) 0; background: var(--color-bg); }

.concept__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}
@media (max-width: 860px) {
  .concept__grid { grid-template-columns: 1fr; }
}

.concept__panel {
  position: relative;
  aspect-ratio: 4 / 5;
  border: 1px solid var(--color-line);
  background:
    radial-gradient(circle at 30% 20%, rgba(201,168,106,0.14), transparent 55%),
    linear-gradient(150deg, #171410, #0c0b09 70%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.concept__panel::before {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(201, 168, 106, 0.35);
  pointer-events: none;
}
.concept__monogram {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: clamp(6rem, 14vw, 9rem);
  color: transparent;
  -webkit-text-stroke: 1px var(--color-gold);
  opacity: 0.85;
}

.concept__body .section-head { text-align: left; margin-bottom: 1.8rem; }
.concept__text {
  color: var(--color-text-dim);
  font-size: 0.98rem;
  letter-spacing: 0.03em;
  line-height: 2.2;
}
.concept__text + .concept__text { margin-top: 1.2em; }

.concept__points {
  margin-top: 2.6rem;
  display: grid;
  gap: 1.4rem;
}
.concept__point {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  padding-top: 1.3rem;
  border-top: 1px solid var(--color-line-soft);
}
.concept__point-index {
  font-family: var(--font-serif-en);
  font-style: italic;
  color: var(--color-gold);
  font-size: 1.1rem;
  min-width: 2ch;
}
.concept__point h3 {
  font-family: var(--font-serif-jp);
  font-size: 1.02rem;
  letter-spacing: 0.06em;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}
.concept__point p {
  color: var(--color-text-faint);
  font-size: 0.86rem;
  letter-spacing: 0.02em;
  line-height: 1.9;
}

/* ==========================================================
   Menu
   ========================================================== */
.menu {
  padding: var(--section-pad) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line-soft);
  border-bottom: 1px solid var(--color-line-soft);
}

.menu__note {
  text-align: center;
  color: var(--color-text-faint);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  margin-top: -1.6rem;
  margin-bottom: 3rem;
}

.menu__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.6rem, 3vw, 2.6rem);
}
@media (max-width: 760px) {
  .menu__grid { grid-template-columns: 1fr; }
}

.menu-card {
  border: 1px solid var(--color-line);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  background: linear-gradient(160deg, rgba(201,168,106,0.05), transparent 40%);
}
.menu-card__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.4rem;
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--color-line);
}
.menu-card__title {
  font-family: var(--font-serif-jp);
  font-size: 1.15rem;
  letter-spacing: 0.1em;
  color: var(--color-gold-light);
}
.menu-card__en {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--color-text-faint);
}

.menu-list li {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 0.7rem 0;
  border-bottom: 1px dashed var(--color-line-soft);
  font-size: 0.92rem;
}
.menu-list li:last-child { border-bottom: none; }
.menu-list .item-name { color: var(--color-text); letter-spacing: 0.02em; }
.menu-list .item-desc {
  display: block;
  margin-top: 0.25rem;
  color: var(--color-text-faint);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
}
.menu-list .item-price {
  white-space: nowrap;
  font-family: var(--font-serif-en);
  color: var(--color-gold-light);
  letter-spacing: 0.03em;
}

/* ==========================================================
   Event
   ========================================================== */
.event { padding: var(--section-pad) 0; background: var(--color-bg); }

.event-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.6rem;
}

.event-card {
  border: 1px solid var(--color-line-soft);
  padding: 1.8rem 1.6rem;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), background 0.4s var(--ease);
}
.event-card:hover {
  border-color: var(--color-line);
  background: rgba(201, 168, 106, 0.04);
  transform: translateY(-4px);
}
.event-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.event-card__date {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.85rem;
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
}
.event-card__tag {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  border: 1px solid var(--color-gold-deep);
  padding: 0.25em 0.8em;
  border-radius: 999px;
}
.event-card__title {
  font-family: var(--font-serif-jp);
  font-size: 1.02rem;
  letter-spacing: 0.04em;
  color: var(--color-text);
  margin-bottom: 0.7rem;
}
.event-card__body {
  font-size: 0.84rem;
  color: var(--color-text-faint);
  line-height: 1.85;
}

/* ==========================================================
   Coupon
   ========================================================== */
.coupon {
  padding: var(--section-pad) 0;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line-soft);
  border-bottom: 1px solid var(--color-line-soft);
}

.coupon__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.6rem, 3vw, 2.4rem);
}
@media (max-width: 760px) {
  .coupon__grid { grid-template-columns: 1fr; }
}

.coupon-card {
  position: relative;
  padding: clamp(1.6rem, 3vw, 2.2rem);
  border: 1px dashed var(--color-gold-deep);
  background: linear-gradient(135deg, rgba(201,168,106,0.07), transparent 60%);
}
.coupon-card::before,
.coupon-card::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  top: 50%;
  transform: translateY(-50%);
}
.coupon-card::before { left: -11px; }
.coupon-card::after { right: -11px; }

.coupon-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.coupon-card__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--color-gold);
  text-transform: uppercase;
}
.coupon-card__title {
  margin-top: 0.5rem;
  font-family: var(--font-serif-jp);
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
}
.coupon-card__desc {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.9;
}
.coupon-card__cond {
  margin-top: 0.9rem;
  font-size: 0.74rem;
  color: var(--color-text-faint);
  letter-spacing: 0.02em;
}
.coupon-card__cond span { display: block; }

.coupon-card__mark {
  flex-shrink: 0;
  font-family: var(--font-serif-jp);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--color-gold-deep);
  border: 1px solid var(--color-gold-deep);
  border-radius: 999px;
  padding: 0.4em 1em;
  white-space: nowrap;
}

.coupon__hint {
  margin-top: 2.4rem;
  text-align: center;
  color: var(--color-text-faint);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
}

/* ==========================================================
   Access / Store info
   ========================================================== */
.access { padding: var(--section-pad) 0; background: var(--color-bg); }

.access__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
}
@media (max-width: 860px) {
  .access__grid { grid-template-columns: 1fr; }
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}
.info-table tr { border-bottom: 1px solid var(--color-line-soft); }
.info-table tr:first-child { border-top: 1px solid var(--color-line-soft); }
.info-table th, .info-table td {
  text-align: left;
  padding: 1.05rem 0.5rem;
  vertical-align: top;
  font-size: 0.9rem;
}
.info-table th {
  width: 8.5em;
  font-family: var(--font-serif-en);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--color-gold);
}
.info-table td { color: var(--color-text-dim); line-height: 1.8; }
.info-table a { color: var(--color-gold-light); border-bottom: 1px solid var(--color-gold-deep); }

.access__actions {
  margin-top: 2.2rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.map-plate {
  position: relative;
  aspect-ratio: 4 / 3.4;
  border: 1px solid var(--color-line);
  background:
    linear-gradient(rgba(201,168,106,0.07) 1px, transparent 1px) 0 0/ 34px 34px,
    linear-gradient(90deg, rgba(201,168,106,0.07) 1px, transparent 1px) 0 0/ 34px 34px,
    #100e0b;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.map-plate__pin {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.6rem;
}
.map-plate__dot {
  width: 14px;
  height: 14px;
  border-radius: 50% 50% 50% 0;
  transform: rotate(-45deg);
  background: var(--color-gold);
  box-shadow: 0 0 0 6px rgba(201,168,106,0.14), 0 0 24px rgba(201,168,106,0.5);
}
.map-plate__label {
  font-family: var(--font-serif-en);
  font-style: italic;
  letter-spacing: 0.18em;
  font-size: 0.85rem;
  color: var(--color-gold-light);
}
.map-plate__sub {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--color-text-faint);
  text-align: center;
  max-width: 16em;
}

/* ==========================================================
   SNS
   ========================================================== */
.sns { padding: var(--section-pad) 0; background: var(--color-bg-alt); border-top: 1px solid var(--color-line-soft); }

.sns__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
}
@media (max-width: 700px) {
  .sns__grid { grid-template-columns: repeat(2, 1fr); }
}

.sns-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  padding: 2rem 1rem;
  border: 1px solid var(--color-line-soft);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease), background 0.4s var(--ease);
}
.sns-card:hover {
  border-color: var(--color-gold-deep);
  background: rgba(201,168,106,0.05);
  transform: translateY(-4px);
}
.sns-card__icon {
  width: 26px;
  height: 26px;
  color: var(--color-gold-light);
}
.sns-card__icon svg { width: 100%; height: 100%; fill: currentColor; }
.sns-card__name {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
}
.sns-card__handle {
  font-size: 0.74rem;
  color: var(--color-text-faint);
  letter-spacing: 0.03em;
}

/* ==========================================================
   Footer
   ========================================================== */
.footer {
  background: #070605;
  border-top: 1px solid var(--color-line-soft);
  padding: 3.4rem 0 1.8rem;
}
.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
  padding-bottom: 2.4rem;
  border-bottom: 1px solid var(--color-line-soft);
}
.footer__logo {
  font-family: var(--font-serif-en);
  font-style: italic;
  font-size: 1.6rem;
  letter-spacing: 0.16em;
  color: var(--color-gold-light);
}
.footer__logo small {
  display: block;
  margin-top: 0.5rem;
  font-family: var(--font-sans);
  font-style: normal;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--color-text-faint);
}
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.2rem 2rem;
}
.footer__nav a {
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  color: var(--color-text-dim);
  transition: color 0.3s;
}
.footer__nav a:hover { color: var(--color-gold-light); }

.footer__bottom {
  margin-top: 1.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--color-text-faint);
}
.footer__sns {
  display: flex;
  gap: 1rem;
}
.footer__sns a {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: 50%;
  color: var(--color-text-dim);
  transition: color 0.3s, border-color 0.3s;
}
.footer__sns a:hover { color: var(--color-gold-light); border-color: var(--color-gold); }
.footer__sns svg { width: 14px; height: 14px; fill: currentColor; }

/* ---------- Back to top ---------- */
.top-btn {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--color-gold-deep);
  background: rgba(10,9,8,0.8);
  backdrop-filter: blur(6px);
  color: var(--color-gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.3s;
  z-index: 60;
}
.top-btn.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.top-btn:hover { border-color: var(--color-gold); }
.top-btn svg { width: 16px; height: 16px; fill: currentColor; }