/* Shirox — Luxury Panel Layout · Layout 76 */

:root {
  --sx-void: #141210;
  --sx-deep: #1c1916;
  --sx-panel: #252119;
  --sx-ivory: #f4f0e8;
  --sx-mist: #9a9288;
  --sx-gold: #c9a962;
  --sx-gold-dim: rgba(201, 169, 98, 0.15);
  --sx-gold-glow: rgba(201, 169, 98, 0.35);
  --sx-border: rgba(201, 169, 98, 0.18);
  --sx-border-soft: rgba(244, 240, 232, 0.06);
  --sx-font-display: 'Cormorant Garamond', 'Noto Serif JP', serif;
  --sx-font-serif: 'Noto Serif JP', 'Cormorant Garamond', serif;
  --sx-font-sans: 'Instrument Sans', 'Noto Sans JP', sans-serif;
  --sx-nav-h: 68px;
  --sx-rail-w: 72px;
  --sx-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --sx-radius: 2px;
  --sx-radius-lg: 4px;
  --sx-shadow-panel:
    0 2px 0 rgba(201, 169, 98, 0.08),
    0 18px 48px rgba(0, 0, 0, 0.42),
    0 48px 96px rgba(0, 0, 0, 0.28);
  --sx-shadow-soft: 0 12px 40px rgba(0, 0, 0, 0.32);
  --sx-content-max: 1240px;
  --sx-chapter-pad: clamp(24px, 5vw, 72px);
}

[data-theme="light"] {
  --sx-void: #f7f4ef;
  --sx-deep: #ffffff;
  --sx-panel: #ede8df;
  --sx-ivory: #1c1916;
  --sx-mist: #6b645c;
  --sx-gold-dim: rgba(160, 130, 60, 0.12);
  --sx-gold-glow: rgba(160, 130, 60, 0.22);
  --sx-border: rgba(160, 130, 60, 0.28);
  --sx-border-soft: rgba(28, 25, 22, 0.08);
  --sx-shadow-panel:
    0 2px 0 rgba(160, 130, 60, 0.12),
    0 16px 40px rgba(28, 25, 22, 0.08),
    0 32px 64px rgba(28, 25, 22, 0.05);
  --sx-shadow-soft: 0 8px 28px rgba(28, 25, 22, 0.08);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body.sx-body {
  font-family: var(--sx-font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--sx-ivory);
  background: var(--sx-void);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--sx-gold);
  text-decoration: none;
  transition: color 0.25s var(--sx-ease);
}

a:hover {
  color: #dfc07a;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

address {
  font-style: normal;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.sx-micro {
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--sx-mist);
  font-family: var(--sx-font-sans);
}

/* ─── Skip ─── */
.sx-skip {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 9999;
  padding: 10px 18px;
  background: var(--sx-gold);
  color: var(--sx-void);
  font-weight: 600;
}

.sx-skip:focus {
  top: 16px;
}

/* ─── Buttons ─── */
.sx-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--sx-radius);
  transition: all 0.32s var(--sx-ease);
  border: 1px solid transparent;
}

.sx-btn--gold {
  background: var(--sx-gold);
  color: var(--sx-void);
}

.sx-btn--gold:hover {
  background: #dfc07a;
  color: var(--sx-void);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--sx-gold-dim);
}

.sx-btn--outline {
  border-color: var(--sx-border);
  color: var(--sx-ivory);
  background: transparent;
}

.sx-btn--outline:hover {
  border-color: var(--sx-gold);
  color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-btn--ghost {
  border-color: transparent;
  color: var(--sx-mist);
  background: var(--sx-gold-dim);
}

.sx-btn--ghost:hover {
  color: var(--sx-gold);
  background: rgba(201, 169, 98, 0.22);
}

.sx-btn--sm {
  padding: 8px 18px;
  font-size: 10px;
}

.sx-btn--lg {
  padding: 16px 36px;
  font-size: 13px;
}

/* ─── Chapter Rail (LEFT) ─── */
.sx-chapter-rail {
  position: fixed;
  left: 0;
  top: var(--sx-nav-h);
  bottom: 0;
  width: var(--sx-rail-w);
  z-index: 850;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 0 24px;
  background: linear-gradient(90deg, rgba(20, 18, 16, 0.96), rgba(20, 18, 16, 0.72));
  border-right: 1px solid var(--sx-border-soft);
}

[data-theme="light"] .sx-chapter-rail {
  background: linear-gradient(90deg, rgba(247, 244, 239, 0.98), rgba(247, 244, 239, 0.82));
}

.sx-chapter-rail__spine {
  position: absolute;
  left: 50%;
  top: 24px;
  bottom: 80px;
  width: 1px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, var(--sx-gold) 12%, var(--sx-gold) 88%, transparent);
  opacity: 0.28;
}

.sx-chapter-rail__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  z-index: 1;
  flex: 1;
  overflow-y: auto;
  scrollbar-width: none;
  padding: 0 8px;
}

.sx-chapter-rail__list::-webkit-scrollbar {
  display: none;
}

.sx-chapter-rail__link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 4px;
  color: var(--sx-mist);
  text-decoration: none;
  transition: all 0.3s var(--sx-ease);
  border-radius: var(--sx-radius);
}

.sx-chapter-rail__roman {
  font-family: var(--sx-font-display);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1;
}

.sx-chapter-rail__kanji {
  font-family: var(--sx-font-serif);
  font-size: 10px;
  opacity: 0.7;
}

.sx-chapter-rail__link:hover,
.sx-chapter-rail__link.is-active {
  color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-chapter-rail__link.is-active .sx-chapter-rail__roman {
  text-shadow: 0 0 16px var(--sx-gold-glow);
}

.sx-chapter-rail__active {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--sx-border-soft);
  width: calc(100% - 16px);
}

.sx-chapter-rail__active-num {
  font-family: var(--sx-font-display);
  font-size: 22px;
  font-weight: 600;
  color: var(--sx-gold);
  line-height: 1;
}

.sx-chapter-rail__active-label {
  font-family: var(--sx-font-serif);
  font-size: 12px;
  color: var(--sx-mist);
  writing-mode: vertical-rl;
  letter-spacing: 0.2em;
}

/* ─── Edge Nav ─── */
.sx-edge-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(20, 18, 16, 0.88);
  backdrop-filter: blur(18px);
  transition: box-shadow 0.35s var(--sx-ease), background 0.35s;
}

[data-theme="light"] .sx-edge-nav {
  background: rgba(247, 244, 239, 0.92);
}

.sx-edge-nav.is-scrolled {
  box-shadow: var(--sx-shadow-soft);
}

.sx-edge-nav__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 40px);
  height: var(--sx-nav-h);
}

.sx-edge-nav__brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--sx-ivory);
  text-decoration: none;
  flex-shrink: 0;
}

.sx-edge-nav__brand:hover {
  color: var(--sx-ivory);
}

.sx-edge-nav__monogram {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sx-font-serif);
  font-size: 17px;
  font-weight: 700;
  color: var(--sx-gold);
  border: 1px solid var(--sx-border);
  background: var(--sx-gold-dim);
}

.sx-edge-nav__name {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.sx-edge-nav__name strong {
  font-family: var(--sx-font-display);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.sx-edge-nav__name em {
  font-size: 9px;
  color: var(--sx-mist);
  font-style: normal;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sx-edge-nav__links {
  display: flex;
  gap: clamp(18px, 3vw, 36px);
}

.sx-nav-link {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sx-mist);
  transition: color 0.25s;
}

.sx-nav-link:hover,
.sx-nav-link.is-active {
  color: var(--sx-gold);
}

.sx-edge-nav__tools {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.sx-tool-btn {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sx-mist);
  border: 1px solid transparent;
  border-radius: var(--sx-radius);
  transition: all 0.25s;
}

.sx-tool-btn:hover {
  color: var(--sx-gold);
  border-color: var(--sx-border);
  background: var(--sx-gold-dim);
}

[data-theme="dark"] .sx-icon-moon,
[data-theme="light"] .sx-icon-sun {
  display: none;
}

.sx-cart-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  color: var(--sx-ivory);
  border: 1px solid var(--sx-border);
  background: var(--sx-gold-dim);
  font-size: 12px;
  font-weight: 600;
  transition: all 0.25s;
}

.sx-cart-pill:hover {
  color: var(--sx-gold);
  border-color: var(--sx-gold);
}

.sx-menu-trigger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 8px;
}

.sx-menu-trigger span {
  display: block;
  height: 1.5px;
  background: var(--sx-ivory);
  transition: transform 0.3s;
}

.sx-edge-nav__gold-rule {
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--sx-gold) 20%, var(--sx-gold) 80%, transparent 100%);
  opacity: 0.55;
}

/* ─── Search Layer ─── */
.sx-search-layer {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: calc(var(--sx-nav-h) + 48px);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s var(--sx-ease);
}

.sx-search-layer.is-open {
  pointer-events: auto;
  opacity: 1;
}

.sx-search-layer__veil {
  position: absolute;
  inset: 0;
  background: rgba(20, 18, 16, 0.72);
  backdrop-filter: blur(6px);
}

[data-theme="light"] .sx-search-layer__veil {
  background: rgba(28, 25, 22, 0.45);
}

.sx-search-layer__panel {
  position: relative;
  z-index: 1;
  width: min(640px, calc(100% - 32px));
  padding: 32px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
  box-shadow: var(--sx-shadow-panel);
  transform: translateY(-16px);
  transition: transform 0.35s var(--sx-ease);
}

.sx-search-layer.is-open .sx-search-layer__panel {
  transform: translateY(0);
}

.sx-search-layer__form {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.sx-search-layer__form input {
  flex: 1;
  padding: 14px 16px;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-ivory);
  font-family: inherit;
  font-size: 15px;
}

.sx-search-layer__form input:focus {
  outline: none;
  border-color: var(--sx-gold);
}

.sx-search-layer__hints {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
  align-items: center;
  font-size: 12px;
  color: var(--sx-mist);
}

.sx-search-layer__hints button {
  padding: 6px 12px;
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-mist);
  font-size: 11px;
  transition: all 0.25s;
}

.sx-search-layer__hints button:hover {
  border-color: var(--sx-gold);
  color: var(--sx-gold);
}

/* ─── Mobile Drawer ─── */
.sx-drawer {
  position: fixed;
  inset: 0;
  z-index: 1050;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.35s;
}

.sx-drawer.is-open {
  pointer-events: auto;
  opacity: 1;
}

.sx-drawer__veil {
  position: absolute;
  inset: 0;
  background: rgba(20, 18, 16, 0.65);
}

.sx-drawer__sheet {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 88vw);
  height: 100%;
  padding: calc(var(--sx-nav-h) + 24px) 28px 28px;
  background: var(--sx-deep);
  border-left: 1px solid var(--sx-border);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateX(100%);
  transition: transform 0.38s var(--sx-ease);
}

.sx-drawer.is-open .sx-drawer__sheet {
  transform: translateX(0);
}

.sx-drawer__sheet a {
  padding: 14px 0;
  color: var(--sx-ivory);
  font-size: 15px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-drawer__sheet a:hover {
  color: var(--sx-gold);
}

.sx-drawer__foot {
  margin-top: auto;
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 12px;
  color: var(--sx-mist);
}

/* ─── Main Layout ─── */
.sx-main {
  padding-top: var(--sx-nav-h);
  min-height: calc(100vh - var(--sx-nav-h));
}

.page-home .sx-main {
  padding-left: var(--sx-rail-w);
}

.sx-panel-world {
  position: relative;
}

/* ─── Fade Reveal ─── */
.sx-fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--sx-ease), transform 0.7s var(--sx-ease);
}

.sx-fade-up.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Luxury Panel System ─── */
.sx-lux-panel {
  position: relative;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  box-shadow: var(--sx-shadow-panel);
  overflow: hidden;
  z-index: var(--panel-z, 1);
}

.sx-lux-panel img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sx-lux-panel__frame {
  position: absolute;
  inset: 12px;
  border: 1px solid var(--sx-gold);
  opacity: 0.35;
  pointer-events: none;
}

.sx-lux-panel--hero {
  aspect-ratio: 3 / 2;
}

.sx-lux-panel--offset {
  position: absolute;
  width: 42%;
  aspect-ratio: 4 / 3;
  transform: translate(var(--panel-x, 0), var(--panel-y, 0));
  box-shadow: var(--sx-shadow-soft);
}

.sx-lux-panel--manifesto {
  padding: clamp(32px, 5vw, 56px);
  flex: 1;
}

.sx-lux-panel--genre {
  aspect-ratio: 7 / 5;
}

.sx-lux-panel--thread {
  aspect-ratio: 10 / 7;
}

.sx-lux-panel--forge {
  aspect-ratio: 3 / 2;
}

.sx-lux-panel--step {
  aspect-ratio: 7 / 5;
}

.sx-lux-panel--vault,
.sx-lux-panel--product {
  aspect-ratio: 4 / 3;
}

.sx-lux-panel--stats {
  padding: clamp(28px, 4vw, 48px);
}

.sx-lux-panel--summit {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 0;
}

.sx-lux-panel--about {
  aspect-ratio: 7 / 5;
}

.sx-lux-panel--mission,
.sx-lux-panel--cta {
  padding: clamp(36px, 5vw, 56px);
  text-align: center;
}

.sx-lux-panel--timeline {
  aspect-ratio: 10 / 7;
}

/* ─── Chapters ─── */
.sx-chapter {
  padding: var(--sx-chapter-pad);
  padding-left: calc(var(--sx-chapter-pad) + 8px);
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-chapter-head {
  max-width: var(--sx-content-max);
  margin: 0 auto 40px;
}

.sx-chapter-head h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--sx-ivory);
  margin-top: 8px;
}

.sx-chapter-head h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-chapter-head__sub {
  margin-top: 12px;
  color: var(--sx-mist);
  max-width: 52ch;
}

.sx-chapter-head__link {
  display: inline-block;
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* §I Prism */
.sx-prism {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  max-width: var(--sx-content-max);
  margin: 0 auto;
  min-height: calc(100vh - var(--sx-nav-h) - 80px);
}

.sx-prism__title {
  font-family: var(--sx-font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 500;
  line-height: 1.05;
  margin-top: 12px;
}

.sx-prism__kanji {
  display: block;
  font-family: var(--sx-font-serif);
  font-size: 0.55em;
  letter-spacing: 0.3em;
  color: var(--sx-mist);
}

.sx-prism__brand {
  display: block;
  font-style: italic;
  color: var(--sx-gold);
}

.sx-prism__deck {
  margin-top: 20px;
  color: var(--sx-mist);
  max-width: 36ch;
  font-size: 16px;
}

.sx-prism__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.sx-prism__visual {
  position: relative;
}

.sx-prism__badge {
  position: absolute;
  bottom: -12px;
  right: 8%;
  padding: 16px 20px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  z-index: 6;
}

.sx-prism__badge span {
  font-family: var(--sx-font-display);
  font-size: 28px;
  font-weight: 600;
  color: var(--sx-gold);
  line-height: 1;
}

.sx-prism__badge em {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sx-mist);
  font-style: normal;
}

/* §II Oath */
.sx-oath {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
  max-width: var(--sx-content-max);
  margin: 0 auto;
}

.sx-oath__pin {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  border: 1px solid var(--sx-border);
  background: var(--sx-gold-dim);
}

.sx-oath__roman {
  font-family: var(--sx-font-display);
  font-size: 32px;
  font-weight: 600;
  color: var(--sx-gold);
  line-height: 1;
}

.sx-oath__label {
  font-family: var(--sx-font-serif);
  font-size: 18px;
  color: var(--sx-mist);
}

.sx-oath__quote {
  font-family: var(--sx-font-serif);
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  line-height: 1.85;
  color: var(--sx-ivory);
}

.sx-oath__quote strong {
  color: var(--sx-gold);
  font-weight: 600;
}

.sx-oath__cite {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--sx-border-soft);
  font-size: 12px;
  color: var(--sx-mist);
  letter-spacing: 0.06em;
}

.sx-oath__aside {
  width: min(200px, 100%);
  text-align: center;
}

.sx-oath__aside img {
  border: 1px solid var(--sx-border-soft);
  margin-bottom: 10px;
}

/* §III Genre Chamber */
.sx-genre-chamber {
  max-width: var(--sx-content-max);
  margin: 0 auto;
}

.sx-genre-chamber__tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-genre-tab {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 12px 18px;
  border: 1px solid var(--sx-border-soft);
  background: transparent;
  color: var(--sx-mist);
  transition: all 0.3s var(--sx-ease);
  min-width: 120px;
}

.sx-genre-tab__en {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sx-genre-tab__jp {
  font-family: var(--sx-font-serif);
  font-size: 14px;
}

.sx-genre-tab:hover,
.sx-genre-tab.is-active {
  border-color: var(--sx-gold);
  background: var(--sx-gold-dim);
  color: var(--sx-gold);
}

.sx-genre-chamber__stage {
  position: relative;
  min-height: 420px;
}

.sx-genre-panel {
  display: none;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
  animation: sxGenreIn 0.5s var(--sx-ease);
}

.sx-genre-panel.is-active {
  display: grid;
}

@keyframes sxGenreIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.sx-genre-panel__overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 16px 20px;
  background: linear-gradient(transparent, rgba(20, 18, 16, 0.85));
}

.sx-genre-panel__spec {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--sx-gold);
}

.sx-genre-panel__copy h3 {
  font-family: var(--sx-font-serif);
  font-size: 1.6rem;
  margin-bottom: 12px;
}

.sx-genre-panel__copy p {
  color: var(--sx-mist);
  margin-bottom: 20px;
}

/* §IV Thread Stack */
.sx-thread-stack {
  max-width: var(--sx-content-max);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: clamp(32px, 6vw, 64px);
}

.sx-thread-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(20px, 4vw, 40px);
  align-items: center;
  margin-left: calc(var(--thread-offset, 0) * 0.5);
}

.sx-thread-panel:nth-child(even) {
  direction: rtl;
}

.sx-thread-panel:nth-child(even) > * {
  direction: ltr;
}

.sx-thread-panel__year {
  font-family: var(--sx-font-display);
  font-size: 2.5rem;
  font-weight: 600;
  color: var(--sx-gold);
  opacity: 0.7;
  display: block;
  margin-bottom: 8px;
}

.sx-thread-panel__text h3 {
  font-family: var(--sx-font-serif);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.sx-thread-panel__text p {
  color: var(--sx-mist);
}

.sx-thread-panel__text strong {
  color: var(--sx-gold);
}

/* §V Forge */
.sx-forge {
  max-width: var(--sx-content-max);
  margin: 0 auto;
}

.sx-forge__head {
  max-width: 56ch;
  margin-bottom: 48px;
}

.sx-forge__head h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 8px 0 16px;
}

.sx-forge__head h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-forge__head p {
  color: var(--sx-mist);
}

.sx-forge__stack {
  position: relative;
  height: clamp(320px, 50vh, 480px);
  margin: 0 auto;
  max-width: 640px;
}

.sx-forge-layer {
  position: absolute;
  inset: 0;
  transform: translateX(var(--forge-offset, 0)) translateY(var(--forge-y, 0));
  transition: transform 0.15s linear, filter 0.3s;
  will-change: transform;
}

.sx-forge-layer[data-depth="1"] { z-index: 4; }
.sx-forge-layer[data-depth="2"] { z-index: 3; opacity: 0.92; }
.sx-forge-layer[data-depth="3"] { z-index: 2; opacity: 0.84; }
.sx-forge-layer[data-depth="4"] { z-index: 1; opacity: 0.76; }

.sx-forge-layer__label {
  position: absolute;
  top: 16px;
  left: 16px;
  padding: 6px 12px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--sx-gold);
}

.sx-forge__readout {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--sx-border-soft);
}

.sx-forge__depth-num {
  font-family: var(--sx-font-display);
  font-size: 3rem;
  font-weight: 600;
  color: var(--sx-gold);
  line-height: 1;
}

.sx-forge__depth-label {
  font-family: var(--sx-font-serif);
  font-size: 1.2rem;
  color: var(--sx-mist);
}

/* §VI Atelier Rail */
.sx-atelier-rail {
  max-width: var(--sx-content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 3vw, 28px);
}

.sx-atelier-step h3 {
  font-family: var(--sx-font-serif);
  font-size: 1.1rem;
  margin: 14px 0 8px;
}

.sx-atelier-step p {
  font-size: 13px;
  color: var(--sx-mist);
}

.sx-atelier-step__num {
  position: absolute;
  bottom: 12px;
  right: 12px;
  font-family: var(--sx-font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--sx-gold);
  opacity: 0.6;
}

/* §VII Vault Grid */
.sx-vault-grid {
  max-width: var(--sx-content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.sx-vault-card {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 0;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
  transition: border-color 0.3s, transform 0.3s;
}

.sx-vault-card:hover {
  border-color: var(--sx-border);
  transform: translateY(-4px);
}

.sx-vault-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--sx-gold);
  color: var(--sx-void);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  z-index: 2;
}

.sx-vault-card__body {
  padding: clamp(20px, 3vw, 28px);
  display: flex;
  flex-direction: column;
}

.sx-vault-card__cat {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sx-gold);
}

.sx-vault-card__body h3 {
  font-family: var(--sx-font-display);
  font-size: 1.35rem;
  margin: 8px 0;
}

.sx-vault-card__body p {
  font-size: 13px;
  color: var(--sx-mist);
  flex: 1;
}

.sx-vault-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--sx-border-soft);
}

.sx-vault-card__price {
  font-family: var(--sx-font-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--sx-gold);
}

/* §VIII Plateau */
.sx-plateau {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
  max-width: var(--sx-content-max);
  margin: 0 auto;
}

.sx-plateau__head h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  margin-top: 8px;
}

.sx-plateau__head h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-plateau__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.sx-stat-cell__val {
  font-family: var(--sx-font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--sx-gold);
  line-height: 1;
  display: block;
}

.sx-stat-cell__val em {
  font-size: 0.45em;
  font-style: normal;
  color: var(--sx-mist);
  margin-left: 2px;
}

.sx-stat-cell__label {
  display: block;
  margin-top: 8px;
  font-size: 12px;
  color: var(--sx-mist);
  letter-spacing: 0.04em;
}

.sx-plateau__visual img {
  border: 1px solid var(--sx-border);
  box-shadow: var(--sx-shadow-soft);
}

/* §IX Whisper Deck */
.sx-whisper-deck {
  max-width: 800px;
  margin: 0 auto;
}

.sx-whisper-deck__track {
  position: relative;
  min-height: 220px;
  overflow: hidden;
}

.sx-whisper-panel {
  position: absolute;
  inset: 0;
  padding: clamp(28px, 4vw, 40px);
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 0.5s var(--sx-ease), transform 0.5s var(--sx-ease);
  pointer-events: none;
}

.sx-whisper-panel.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
  position: relative;
}

.sx-whisper-panel__text {
  font-family: var(--sx-font-serif);
  font-size: clamp(1rem, 2vw, 1.2rem);
  line-height: 1.85;
  color: var(--sx-ivory);
  margin-bottom: 24px;
}

.sx-whisper-panel footer {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-top: 20px;
  border-top: 1px solid var(--sx-border-soft);
}

.sx-whisper-panel cite {
  font-style: normal;
  font-weight: 600;
  color: var(--sx-gold);
}

.sx-whisper-panel footer span {
  font-size: 12px;
  color: var(--sx-mist);
}

.sx-whisper-deck__nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 28px;
}

.sx-whisper-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--sx-border);
  color: var(--sx-mist);
  transition: all 0.25s;
}

.sx-whisper-btn:hover {
  border-color: var(--sx-gold);
  color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-whisper-dots {
  display: flex;
  gap: 8px;
}

.sx-whisper-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1px solid var(--sx-mist);
  background: transparent;
  transition: all 0.3s;
  padding: 0;
}

.sx-whisper-dot.is-active {
  background: var(--sx-gold);
  border-color: var(--sx-gold);
  transform: scale(1.3);
}

/* §X Summit */
.sx-summit {
  max-width: var(--sx-content-max);
  margin: 0 auto;
}

.sx-summit__inner {
  padding: clamp(36px, 5vw, 56px);
}

.sx-summit__inner h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 8px 0 16px;
}

.sx-summit__inner h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-summit__deck {
  color: var(--sx-mist);
  max-width: 48ch;
  margin-bottom: 28px;
}

.sx-summit__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.sx-summit__meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--sx-border-soft);
}

.sx-summit__meta dt {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sx-mist);
  margin-bottom: 4px;
}

.sx-summit__meta dd {
  font-size: 13px;
}

.sx-summit__visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Footer ─── */
.sx-panel-foot {
  background: var(--sx-deep);
  border-top: 1px solid var(--sx-border);
  margin-top: 0;
}

.page-home .sx-panel-foot {
  margin-left: calc(-1 * var(--sx-rail-w));
}

.sx-panel-foot__grid {
  display: grid;
  grid-template-columns: 1.1fr 1.2fr 0.9fr;
  gap: clamp(24px, 4vw, 48px);
  max-width: 1440px;
  margin: 0 auto;
  padding: clamp(40px, 6vw, 64px) clamp(24px, 5vw, 48px);
}

.sx-panel-foot__mark {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.sx-panel-foot__glyph {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--sx-font-serif);
  font-size: 22px;
  font-weight: 700;
  color: var(--sx-gold);
  border: 1px solid var(--sx-border);
  background: var(--sx-gold-dim);
  flex-shrink: 0;
}

.sx-panel-foot__mark strong {
  font-family: var(--sx-font-display);
  font-size: 1.4rem;
  display: block;
}

.sx-panel-foot__mark p {
  font-size: 12px;
  color: var(--sx-mist);
  margin-top: 4px;
}

.sx-panel-foot__cell address,
.sx-panel-foot__cell a {
  font-size: 13px;
  color: var(--sx-mist);
  line-height: 1.8;
}

.sx-panel-foot__cell--links {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.sx-panel-foot__col h4 {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--sx-gold);
  margin-bottom: 14px;
}

.sx-panel-foot__col a {
  display: block;
  padding: 5px 0;
  font-size: 13px;
}

.sx-panel-foot__hours {
  font-size: 13px;
  color: var(--sx-mist);
  margin-bottom: 12px;
}

.sx-panel-foot__form {
  display: flex;
  gap: 8px;
  margin-top: 16px;
}

.sx-panel-foot__form input {
  flex: 1;
  padding: 10px 12px;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-ivory);
  font-size: 13px;
}

.sx-panel-foot__form input:focus {
  outline: none;
  border-color: var(--sx-gold);
}

.sx-panel-foot__marquee {
  overflow: hidden;
  border-top: 1px solid var(--sx-border-soft);
  border-bottom: 1px solid var(--sx-border-soft);
  padding: 14px 0;
  background: var(--sx-panel);
}

.sx-panel-foot__marquee-track {
  display: flex;
  gap: 80px;
  animation: sxMarquee 28s linear infinite;
  white-space: nowrap;
}

.sx-panel-foot__marquee-track span {
  font-family: var(--sx-font-display);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--sx-mist);
}

@keyframes sxMarquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.sx-panel-foot__base {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 16px clamp(24px, 5vw, 48px);
  font-size: 11px;
  color: var(--sx-mist);
  max-width: 1440px;
  margin: 0 auto;
}

.sx-panel-foot__geo {
  letter-spacing: 0.08em;
}

/* ─── Back to Top & Toast ─── */
.sx-back-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 800;
  width: 46px;
  height: 46px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
  color: var(--sx-gold);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.35s var(--sx-ease);
}

.sx-back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sx-back-top:hover {
  background: var(--sx-gold-dim);
  border-color: var(--sx-gold);
}

.sx-toast {
  position: fixed;
  bottom: 88px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  z-index: 1200;
  padding: 12px 24px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-gold);
  color: var(--sx-ivory);
  font-size: 13px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.35s var(--sx-ease);
  pointer-events: none;
}

.sx-toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

/* ─── Inner Pages ─── */
.sx-page {
  max-width: var(--sx-content-max);
  margin: 0 auto;
  padding: clamp(32px, 5vw, 56px) clamp(20px, 4vw, 40px) 80px;
}

.sx-page-hero {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-page-hero h1 {
  font-family: var(--sx-font-display);
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 500;
  margin-top: 8px;
}

.sx-page-hero h1 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-page-hero__sub {
  margin-top: 12px;
  color: var(--sx-mist);
  max-width: 56ch;
}

.sx-page-hero--legal h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.sx-section-head {
  margin-bottom: 32px;
}

.sx-section-head h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-top: 8px;
}

.sx-section-head h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

/* ─── Shop ─── */
.sx-shop-layout {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.sx-shop-sidebar {
  position: sticky;
  top: calc(var(--sx-nav-h) + 24px);
  padding: 24px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
}

.sx-shop-sidebar h2 {
  font-family: var(--sx-font-display);
  font-size: 1.1rem;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-filter-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sx-filter-btn {
  text-align: left;
  padding: 10px 12px;
  font-size: 13px;
  color: var(--sx-mist);
  border-left: 2px solid transparent;
  transition: all 0.25s;
}

.sx-filter-btn:hover,
.sx-filter-btn.is-active {
  color: var(--sx-gold);
  border-left-color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-shop-sidebar__meta {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--sx-border-soft);
}

.sx-shop-toolbar {
  display: flex;
  gap: 16px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}

.sx-shop-search {
  flex: 1;
  min-width: 200px;
}

.sx-shop-search input,
.sx-shop-sort {
  width: 100%;
  padding: 12px 14px;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-ivory);
  font-family: inherit;
  font-size: 14px;
}

.sx-shop-sort {
  width: auto;
  min-width: 180px;
}

.sx-shop-search input:focus,
.sx-shop-sort:focus {
  outline: none;
  border-color: var(--sx-gold);
}

.sx-product-mosaic {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: clamp(20px, 3vw, 28px);
}

.sx-product-panel {
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
  transition: border-color 0.3s, transform 0.3s;
}

.sx-product-panel:hover {
  border-color: var(--sx-border);
  transform: translateY(-3px);
}

.sx-product-panel.is-hidden {
  display: none;
}

.sx-product-panel__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 4px 10px;
  background: var(--sx-gold);
  color: var(--sx-void);
  font-size: 10px;
  font-weight: 700;
  z-index: 2;
}

.sx-wishlist-btn {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(20, 18, 16, 0.72);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-mist);
  z-index: 2;
  transition: all 0.25s;
}

.sx-wishlist-btn:hover,
.sx-wishlist-btn.is-active {
  color: var(--sx-gold);
  border-color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-wishlist-btn.is-active svg {
  fill: var(--sx-gold);
}

.sx-product-panel__body {
  padding: 20px;
}

.sx-product-panel__cat {
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sx-gold);
}

.sx-product-panel__body h3 {
  font-family: var(--sx-font-display);
  font-size: 1.2rem;
  margin: 8px 0;
}

.sx-product-panel__story {
  font-size: 13px;
  color: var(--sx-mist);
  margin-bottom: 14px;
}

.sx-product-panel__specs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 16px;
  padding: 12px 0;
  border-top: 1px solid var(--sx-border-soft);
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-product-panel__specs dt {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sx-mist);
}

.sx-product-panel__specs dd {
  font-size: 12px;
  font-weight: 500;
}

.sx-product-panel__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sx-product-panel__price {
  font-family: var(--sx-font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--sx-gold);
}

.sx-shop-empty {
  text-align: center;
  padding: 48px;
  color: var(--sx-mist);
  border: 1px dashed var(--sx-border-soft);
}

/* ─── Cart ─── */
.sx-cart-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.sx-cart-empty {
  text-align: center;
  padding: 64px 32px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
}

.sx-cart-empty p {
  color: var(--sx-mist);
  margin-bottom: 24px;
}

.sx-cart-items {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.sx-cart-item {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 20px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
}

.sx-cart-item__img {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--sx-border-soft);
}

.sx-cart-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sx-cart-item__name {
  font-family: var(--sx-font-display);
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.sx-cart-item__price {
  color: var(--sx-gold);
  font-weight: 600;
  margin-bottom: 10px;
}

.sx-cart-item__remove {
  font-size: 12px;
  color: var(--sx-mist);
  text-decoration: underline;
}

.sx-cart-item__remove:hover {
  color: var(--sx-gold);
}

.sx-qty-control {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--sx-border-soft);
}

.sx-qty-control button {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--sx-mist);
  transition: color 0.25s;
}

.sx-qty-control button:hover {
  color: var(--sx-gold);
}

.sx-qty-control span {
  min-width: 24px;
  text-align: center;
  font-weight: 600;
}

.sx-cart-sidebar {
  position: sticky;
  top: calc(var(--sx-nav-h) + 24px);
  padding: 28px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
}

.sx-cart-sidebar h2 {
  font-family: var(--sx-font-display);
  font-size: 1.2rem;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-cart-coupon label {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sx-mist);
  margin-bottom: 8px;
}

.sx-cart-coupon__row {
  display: flex;
  gap: 8px;
}

.sx-cart-coupon__row input {
  flex: 1;
  padding: 10px 12px;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-ivory);
  font-size: 13px;
}

.sx-cart-coupon__hint {
  font-size: 11px;
  color: var(--sx-mist);
  margin-top: 8px;
}

.sx-cart-coupon__hint.is-applied {
  color: var(--sx-gold);
}

.sx-cart-totals {
  margin: 24px 0;
  padding: 20px 0;
  border-top: 1px solid var(--sx-border-soft);
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-cart-totals div {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 14px;
}

.sx-cart-totals dt {
  color: var(--sx-mist);
}

.sx-cart-totals__grand {
  margin-top: 8px;
  padding-top: 12px;
  border-top: 1px solid var(--sx-border-soft);
  font-weight: 600;
  font-size: 16px !important;
}

.sx-cart-totals__grand dd {
  color: var(--sx-gold);
  font-family: var(--sx-font-display);
}

.sx-cart-note {
  font-size: 11px;
  color: var(--sx-mist);
  margin-bottom: 20px;
  line-height: 1.6;
}

.sx-cart-checkout {
  width: 100%;
  margin-bottom: 12px;
}

/* ─── Contact ─── */
.sx-contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.sx-contact-info h2,
.sx-contact-form-wrap h2 {
  font-family: var(--sx-font-display);
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.sx-contact-card {
  padding: 24px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
  line-height: 1.8;
  margin-bottom: 16px;
}

.sx-contact-hours {
  font-size: 13px;
  color: var(--sx-mist);
  margin-bottom: 8px;
}

.sx-contact-map {
  margin-top: 28px;
}

.sx-contact-map h3 {
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sx-mist);
  margin-bottom: 12px;
}

.sx-contact-map__frame {
  border: 1px solid var(--sx-border-soft);
  overflow: hidden;
  margin-bottom: 12px;
}

.sx-contact-map__frame iframe {
  display: block;
  border: 0;
}

.sx-contact-map p {
  font-size: 13px;
  color: var(--sx-mist);
}

.sx-contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sx-form-row label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  color: var(--sx-mist);
}

.sx-required {
  color: var(--sx-gold);
}

.sx-form-row input,
.sx-form-row select,
.sx-form-row textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--sx-panel);
  border: 1px solid var(--sx-border-soft);
  color: var(--sx-ivory);
  font-family: inherit;
  font-size: 14px;
  transition: border-color 0.25s;
}

.sx-form-row input:focus,
.sx-form-row select:focus,
.sx-form-row textarea:focus {
  outline: none;
  border-color: var(--sx-gold);
}

.sx-form-error {
  padding: 12px 16px;
  background: rgba(180, 60, 60, 0.12);
  border: 1px solid rgba(180, 60, 60, 0.35);
  color: #e8a0a0;
  margin-bottom: 16px;
  font-size: 13px;
}

.sx-form-success {
  padding: 48px 32px;
  text-align: center;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border);
}

.sx-form-success h2 {
  font-family: var(--sx-font-display);
  color: var(--sx-gold);
  margin-bottom: 12px;
}

.sx-form-success p {
  color: var(--sx-mist);
  margin-bottom: 24px;
}

/* ─── FAQ ─── */
.sx-faq-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.sx-faq-tabs {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: calc(var(--sx-nav-h) + 24px);
}

.sx-faq-tab {
  text-align: left;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--sx-mist);
  border-left: 2px solid transparent;
  transition: all 0.25s;
}

.sx-faq-tab:hover,
.sx-faq-tab.is-active {
  color: var(--sx-gold);
  border-left-color: var(--sx-gold);
  background: var(--sx-gold-dim);
}

.sx-faq-panel {
  display: none;
}

.sx-faq-panel.is-active {
  display: block;
}

.sx-faq-panel__title {
  font-family: var(--sx-font-display);
  font-size: 1.3rem;
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-accordion__item {
  border: 1px solid var(--sx-border-soft);
  margin-bottom: 8px;
  background: var(--sx-deep);
}

.sx-accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  font-family: var(--sx-font-serif);
  font-size: 15px;
  cursor: pointer;
  list-style: none;
}

.sx-accordion__trigger::-webkit-details-marker {
  display: none;
}

.sx-accordion__icon {
  flex-shrink: 0;
  color: var(--sx-gold);
  transition: transform 0.3s;
}

.sx-accordion__item[open] .sx-accordion__icon {
  transform: rotate(180deg);
}

.sx-accordion__body {
  padding: 0 20px 20px;
  color: var(--sx-mist);
  font-size: 14px;
  line-height: 1.75;
}

.sx-accordion__body a {
  text-decoration: underline;
}

.sx-faq-cta {
  margin-top: 56px;
}

.sx-faq-cta h2 {
  font-family: var(--sx-font-display);
  font-size: 1.5rem;
  margin-bottom: 12px;
}

.sx-faq-cta p {
  color: var(--sx-mist);
  margin-bottom: 20px;
}

/* ─── Legal ─── */
.sx-legal-content {
  max-width: 760px;
}

.sx-legal-content section {
  margin-bottom: 36px;
}

.sx-legal-content h2 {
  font-family: var(--sx-font-display);
  font-size: 1.35rem;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--sx-border-soft);
}

.sx-legal-content h3 {
  font-size: 1rem;
  margin: 20px 0 10px;
  color: var(--sx-gold);
}

.sx-legal-content p,
.sx-legal-content li {
  color: var(--sx-mist);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 10px;
}

.sx-legal-content ul {
  padding-left: 20px;
  margin-bottom: 14px;
}

/* ─── About ─── */
.sx-about-narrative {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 48px);
  align-items: center;
  margin-bottom: 64px;
}

.sx-about-narrative__caption {
  position: absolute;
  bottom: 16px;
  left: 16px;
  padding: 8px 12px;
  background: rgba(20, 18, 16, 0.8);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--sx-gold);
}

.sx-about-narrative__text h2 {
  font-family: var(--sx-font-display);
  font-size: clamp(1.6rem, 3vw, 2rem);
  margin-bottom: 20px;
}

.sx-about-narrative__text h2 em {
  font-style: italic;
  color: var(--sx-gold);
}

.sx-about-narrative__text p {
  color: var(--sx-mist);
  margin-bottom: 16px;
}

.sx-about-mission {
  margin-bottom: 64px;
}

.sx-about-mission blockquote {
  font-family: var(--sx-font-serif);
  font-size: 1.4rem;
  color: var(--sx-gold);
  margin: 16px 0 20px;
  font-style: italic;
}

.sx-about-mission p {
  color: var(--sx-mist);
  max-width: 56ch;
  margin: 0 auto;
}

.sx-about-values {
  margin-bottom: 64px;
}

.sx-about-values__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.sx-value-panel {
  padding: 28px 20px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
  text-align: center;
  transition: border-color 0.3s;
}

.sx-value-panel:hover {
  border-color: var(--sx-border);
}

.sx-value-panel__glyph {
  display: block;
  font-family: var(--sx-font-serif);
  font-size: 2rem;
  color: var(--sx-gold);
  margin-bottom: 12px;
}

.sx-value-panel h3 {
  font-family: var(--sx-font-display);
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.sx-value-panel p {
  font-size: 13px;
  color: var(--sx-mist);
}

.sx-about-timeline {
  margin-bottom: 64px;
}

.sx-timeline {
  display: flex;
  flex-direction: column;
  gap: 40px;
  position: relative;
  padding-left: 32px;
}

.sx-timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--sx-gold), var(--sx-border-soft));
  opacity: 0.4;
}

.sx-timeline__item {
  display: grid;
  grid-template-columns: 80px 200px 1fr;
  gap: 24px;
  align-items: center;
  position: relative;
}

.sx-timeline__item::before {
  content: '';
  position: absolute;
  left: -28px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--sx-gold);
  border: 2px solid var(--sx-void);
}

.sx-timeline__year {
  font-family: var(--sx-font-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--sx-gold);
}

.sx-timeline__text h3 {
  font-family: var(--sx-font-serif);
  font-size: 1.15rem;
  margin-bottom: 8px;
}

.sx-timeline__text p {
  font-size: 13px;
  color: var(--sx-mist);
}

.sx-about-team {
  margin-bottom: 64px;
}

.sx-about-team__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.sx-team-panel {
  padding: 28px;
  background: var(--sx-deep);
  border: 1px solid var(--sx-border-soft);
}

.sx-team-panel h3 {
  font-family: var(--sx-font-display);
  font-size: 1.2rem;
  margin-bottom: 6px;
}

.sx-team-panel__role {
  display: block;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sx-gold);
  margin-bottom: 14px;
}

.sx-team-panel p {
  font-size: 13px;
  color: var(--sx-mist);
}

.sx-about-cta {
  margin-bottom: 24px;
}

/* ─── Responsive: 1100px ─── */
@media (max-width: 1100px) {
  .sx-prism {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .sx-prism__visual {
    order: -1;
    max-width: 560px;
    margin: 0 auto;
  }

  .sx-oath {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .sx-oath__pin {
    flex-direction: row;
    justify-content: center;
    width: fit-content;
    margin: 0 auto;
  }

  .sx-oath__aside {
    margin: 0 auto;
  }

  .sx-genre-panel {
    grid-template-columns: 1fr;
  }

  .sx-atelier-rail {
    grid-template-columns: repeat(2, 1fr);
  }

  .sx-vault-grid {
    grid-template-columns: 1fr;
  }

  .sx-vault-card {
    grid-template-columns: 1fr;
  }

  .sx-plateau {
    grid-template-columns: 1fr;
  }

  .sx-lux-panel--summit {
    grid-template-columns: 1fr;
  }

  .sx-summit__visual {
    min-height: 280px;
  }

  .sx-panel-foot__grid {
    grid-template-columns: 1fr 1fr;
  }

  .sx-panel-foot__cell--letter {
    grid-column: 1 / -1;
  }

  .sx-shop-layout {
    grid-template-columns: 1fr;
  }

  .sx-shop-sidebar {
    position: static;
  }

  .sx-filter-nav {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sx-filter-btn {
    border-left: none;
    border-bottom: 2px solid transparent;
  }

  .sx-filter-btn.is-active {
    border-bottom-color: var(--sx-gold);
  }

  .sx-cart-layout {
    grid-template-columns: 1fr;
  }

  .sx-cart-sidebar {
    position: static;
  }

  .sx-contact-layout {
    grid-template-columns: 1fr;
  }

  .sx-about-narrative {
    grid-template-columns: 1fr;
  }

  .sx-about-values__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .sx-timeline__item {
    grid-template-columns: 70px 1fr;
  }

  .sx-timeline__item .sx-lux-panel {
    grid-column: 1 / -1;
    max-width: 320px;
  }

  .sx-about-team__grid {
    grid-template-columns: 1fr;
  }
}

/* ─── Responsive: 900px ─── */
@media (max-width: 900px) {
  .sx-chapter-rail {
    display: none;
  }

  .page-home .sx-main,
  .page-home .sx-panel-foot {
    margin-left: 0;
    padding-left: 0;
  }

  .sx-edge-nav__links {
    display: none;
  }

  .sx-menu-trigger {
    display: flex;
  }

  .sx-thread-panel {
    grid-template-columns: 1fr;
    margin-left: 0 !important;
  }

  .sx-thread-panel:nth-child(even) {
    direction: ltr;
  }

  .sx-atelier-rail {
    grid-template-columns: 1fr;
  }

  .sx-summit__meta {
    grid-template-columns: 1fr;
  }

  .sx-panel-foot__grid {
    grid-template-columns: 1fr;
  }

  .sx-panel-foot__cell--links {
    grid-template-columns: 1fr 1fr;
  }

  .sx-faq-layout {
    grid-template-columns: 1fr;
  }

  .sx-faq-tabs {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sx-faq-tab {
    border-left: none;
    border-bottom: 2px solid transparent;
  }

  .sx-faq-tab.is-active {
    border-bottom-color: var(--sx-gold);
  }

  .sx-cart-item {
    grid-template-columns: 100px 1fr;
  }

  .sx-qty-control {
    grid-column: 1 / -1;
    justify-content: center;
    margin-top: 8px;
  }
}

/* ─── Responsive: 640px ─── */
@media (max-width: 640px) {
  :root {
    --sx-nav-h: 60px;
  }

  .sx-edge-nav__name em {
    display: none;
  }

  .sx-prism__actions,
  .sx-summit__actions {
    flex-direction: column;
  }

  .sx-prism__actions .sx-btn,
  .sx-summit__actions .sx-btn {
    width: 100%;
  }

  .sx-genre-chamber__tabs {
    flex-direction: column;
  }

  .sx-genre-tab {
    width: 100%;
  }

  .sx-plateau__grid {
    grid-template-columns: 1fr;
  }

  .sx-product-mosaic {
    grid-template-columns: 1fr;
  }

  .sx-product-panel__specs {
    grid-template-columns: 1fr;
  }

  .sx-panel-foot__cell--links {
    grid-template-columns: 1fr;
  }

  .sx-panel-foot__form {
    flex-direction: column;
  }

  .sx-search-layer__form {
    flex-direction: column;
  }

  .sx-cart-item {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .sx-cart-item__img {
    max-width: 200px;
    margin: 0 auto;
  }

  .sx-about-values__grid {
    grid-template-columns: 1fr;
  }

  .sx-timeline__item {
    grid-template-columns: 1fr;
    padding-left: 0;
  }

  .sx-timeline {
    padding-left: 20px;
  }

  .sx-back-top {
    bottom: 16px;
    right: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .sx-fade-up {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .sx-panel-foot__marquee-track {
    animation: none;
  }

  .sx-forge-layer {
    transition: none;
  }
}