/* Syvurex Motor Studio — Main stylesheet (Layout 74 · Floating Object) */

:root {
    --sx-bg: #0a0c10;
    --sx-surface: #12151c;
    --sx-surface-raised: #181c26;
    --sx-surface-glass: rgba(18, 21, 28, 0.88);
    --sx-text: #e8ecf2;
    --sx-text-muted: #8b92a3;
    --sx-text-dim: #5c6375;
    --sx-teal: #3dd6c6;
    --sx-teal-dim: #2a9d90;
    --sx-teal-glow: rgba(61, 214, 198, 0.35);
    --sx-amber: #d4a574;
    --sx-amber-dim: #a67c4a;
    --sx-amber-glow: rgba(212, 165, 116, 0.28);
    --sx-border: rgba(61, 214, 198, 0.12);
    --sx-border-strong: rgba(61, 214, 198, 0.22);
    --sx-font-serif: 'Instrument Serif', 'Noto Serif JP', Georgia, serif;
    --sx-font-display: 'Syne', 'IBM Plex Sans JP', sans-serif;
    --sx-font-body: 'IBM Plex Sans JP', 'Hiragino Sans', sans-serif;
    --sx-nav-h: 72px;
    --sx-rail-w: 56px;
    --sx-gutter: clamp(1.25rem, 4vw, 2.5rem);
    --sx-max: 1200px;
    --sx-ease: cubic-bezier(0.16, 1, 0.3, 1);
    --sx-ease-out: cubic-bezier(0.33, 1, 0.68, 1);
    --sx-shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.35);
    --sx-shadow-md: 0 20px 48px rgba(0, 0, 0, 0.45);
    --sx-shadow-lg: 0 32px 80px rgba(0, 0, 0, 0.55);
    --sx-shadow-float: 0 24px 64px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(61, 214, 198, 0.06);
    --sx-shadow-glow: 0 0 40px var(--sx-teal-glow);
    --sx-radius: 2px;
    --sx-radius-lg: 4px;
}

[data-theme="light"] {
    --sx-bg: #f0f2f6;
    --sx-surface: #ffffff;
    --sx-surface-raised: #e8ebf0;
    --sx-surface-glass: rgba(255, 255, 255, 0.92);
    --sx-text: #0f1218;
    --sx-text-muted: #4a5162;
    --sx-text-dim: #7a8294;
    --sx-border: rgba(15, 18, 24, 0.1);
    --sx-border-strong: rgba(15, 18, 24, 0.18);
    --sx-shadow-sm: 0 8px 24px rgba(15, 18, 24, 0.06);
    --sx-shadow-md: 0 20px 48px rgba(15, 18, 24, 0.08);
    --sx-shadow-lg: 0 32px 80px rgba(15, 18, 24, 0.1);
    --sx-shadow-float: 0 24px 64px rgba(15, 18, 24, 0.08), 0 0 0 1px rgba(15, 18, 24, 0.06);
    --sx-shadow-glow: 0 0 40px rgba(61, 214, 198, 0.15);
}

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

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

[hidden] { display: none !important; }

body.sx-body {
    margin: 0;
    font-family: var(--sx-font-body);
    font-size: 15px;
    font-weight: 400;
    line-height: 1.75;
    color: var(--sx-text);
    background: var(--sx-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img, svg, video, canvas {
    max-width: 100%;
    height: auto;
    display: block;
}

figure { margin: 0; }

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

a:hover { color: var(--sx-amber); }

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

button { cursor: pointer; }

address { font-style: normal; }

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

/* ——— Typography ——— */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--sx-font-serif);
    font-weight: 400;
    line-height: 1.15;
    margin: 0 0 0.75rem;
}

.sx-micro {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--sx-teal);
    margin: 0 0 0.75rem;
}

.sx-depth-tag {
    display: inline-block;
    font-family: var(--sx-font-display);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--sx-amber);
    margin-bottom: 0.85rem;
    padding: 0.35rem 0.75rem;
    border: 1px solid var(--sx-border);
    background: rgba(61, 214, 198, 0.04);
}

/* ——— Buttons ——— */
.sx-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    font-family: var(--sx-font-display);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding: 0.85rem 1.75rem;
    border: 1px solid transparent;
    border-radius: var(--sx-radius);
    cursor: pointer;
    transition:
        background 0.3s var(--sx-ease),
        border-color 0.3s var(--sx-ease),
        color 0.3s var(--sx-ease),
        box-shadow 0.3s var(--sx-ease),
        transform 0.3s var(--sx-ease);
}

.sx-btn:hover { transform: translateY(-1px); }
.sx-btn:active { transform: translateY(0); }

.sx-btn--teal {
    background: var(--sx-teal);
    color: var(--sx-bg);
    border-color: var(--sx-teal);
    box-shadow: 0 4px 20px var(--sx-teal-glow);
}

.sx-btn--teal:hover {
    background: #52e8d8;
    border-color: #52e8d8;
    color: var(--sx-bg);
    box-shadow: 0 8px 32px var(--sx-teal-glow);
}

.sx-btn--ghost {
    background: transparent;
    color: var(--sx-text);
    border-color: var(--sx-border-strong);
}

.sx-btn--ghost:hover {
    border-color: var(--sx-teal);
    color: var(--sx-teal);
    box-shadow: 0 0 24px rgba(61, 214, 198, 0.12);
}

.sx-btn--sm {
    padding: 0.55rem 1.1rem;
    font-size: 10px;
}

.sx-btn--lg {
    padding: 1rem 2.25rem;
    font-size: 13px;
}

/* ——— Orbit Nav ——— */
.sx-orbit-nav {
    position: sticky;
    top: 0;
    z-index: 900;
    height: var(--sx-nav-h);
    background: var(--sx-surface-glass);
    backdrop-filter: blur(20px) saturate(1.2);
    -webkit-backdrop-filter: blur(20px) saturate(1.2);
    border-bottom: 1px solid var(--sx-border);
    transition: box-shadow 0.35s var(--sx-ease), background 0.35s;
}

.sx-orbit-nav.is-scrolled {
    box-shadow: var(--sx-shadow-sm);
}

.sx-orbit-nav__shell {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    max-width: calc(var(--sx-max) + var(--sx-gutter) * 2);
    height: 100%;
    margin: 0 auto;
    padding: 0 var(--sx-gutter);
}

.sx-orbit-nav__brand {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    color: var(--sx-text);
    flex-shrink: 0;
}

.sx-orbit-nav__brand:hover { color: var(--sx-text); }

.sx-orbit-nav__ring {
    position: relative;
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    border: 2px solid var(--sx-teal);
    box-shadow:
        0 0 0 3px rgba(61, 214, 198, 0.08),
        0 0 20px var(--sx-teal-glow),
        inset 0 0 12px rgba(61, 214, 198, 0.15);
    transition: box-shadow 0.35s var(--sx-ease), transform 0.35s var(--sx-ease);
}

.sx-orbit-nav__ring::before {
    content: '';
    position: absolute;
    inset: 6px;
    border-radius: 50%;
    border: 1px solid rgba(212, 165, 116, 0.4);
}

.sx-orbit-nav__ring::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 6px;
    height: 6px;
    margin: -3px 0 0 -3px;
    border-radius: 50%;
    background: var(--sx-amber);
    box-shadow: 0 0 8px var(--sx-amber-glow);
}

.sx-orbit-nav__brand:hover .sx-orbit-nav__ring {
    transform: rotate(45deg);
    box-shadow:
        0 0 0 3px rgba(61, 214, 198, 0.15),
        0 0 32px var(--sx-teal-glow),
        inset 0 0 16px rgba(61, 214, 198, 0.2);
}

.sx-orbit-nav__wordmark {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.sx-orbit-nav__wordmark strong {
    font-family: var(--sx-font-display);
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.06em;
}

.sx-orbit-nav__wordmark em {
    font-style: normal;
    font-size: 9px;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--sx-text-muted);
}

.sx-orbit-nav__links {
    display: flex;
    align-items: center;
    gap: clamp(1.25rem, 3vw, 2rem);
}

.sx-orbit-nav__link {
    position: relative;
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--sx-text-muted);
    padding: 0.35rem 0;
    transition: color 0.25s var(--sx-ease);
}

.sx-orbit-nav__link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, var(--sx-teal), var(--sx-amber));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s var(--sx-ease);
}

.sx-orbit-nav__link:hover,
.sx-orbit-nav__link.is-active {
    color: var(--sx-text);
}

.sx-orbit-nav__link:hover::after,
.sx-orbit-nav__link.is-active::after {
    transform: scaleX(1);
}

.sx-orbit-nav__tools {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.sx-tool-btn {
    width: 36px;
    height: 36px;
    display: grid;
    place-items: center;
    background: transparent;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text-muted);
    transition:
        border-color 0.25s var(--sx-ease),
        color 0.25s var(--sx-ease),
        box-shadow 0.25s var(--sx-ease);
}

.sx-tool-btn:hover {
    border-color: var(--sx-teal);
    color: var(--sx-teal);
    box-shadow: 0 0 16px rgba(61, 214, 198, 0.12);
}

.sx-orbit-cart {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.4rem 0.75rem;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 600;
    transition: border-color 0.25s, box-shadow 0.25s;
}

.sx-orbit-cart:hover {
    border-color: var(--sx-amber);
    color: var(--sx-text);
    box-shadow: 0 0 16px var(--sx-amber-glow);
}

.sx-orbit-cart span {
    color: var(--sx-teal);
    min-width: 1ch;
}

.sx-orbit-nav__burger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    padding: 8px;
    background: transparent;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
}

.sx-orbit-nav__burger span {
    display: block;
    height: 1px;
    background: var(--sx-text);
    transition: transform 0.3s var(--sx-ease), opacity 0.3s;
}

.sx-orbit-nav__burger[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
}

.sx-orbit-nav__burger[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.sx-orbit-nav__burger[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
}

/* ——— Depth Rail (homepage) ——— */
.sx-depth-rail {
    position: fixed;
    top: var(--sx-nav-h);
    left: 0;
    bottom: 0;
    z-index: 850;
    width: var(--sx-rail-w);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem 0;
    border-right: 1px solid var(--sx-border);
    background: rgba(10, 12, 16, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .sx-depth-rail {
    background: rgba(240, 242, 246, 0.85);
}

.sx-depth-rail__track {
    position: relative;
    width: 2px;
    flex: 1;
    max-height: 120px;
    margin-bottom: 1rem;
    background: var(--sx-border);
    border-radius: 1px;
}

.sx-depth-rail__orb {
    position: absolute;
    left: 50%;
    top: 0;
    width: 8px;
    height: 8px;
    margin-left: -4px;
    border-radius: 50%;
    background: var(--sx-teal);
    box-shadow: 0 0 12px var(--sx-teal-glow);
    transition: top 0.5s var(--sx-ease);
}

.sx-depth-rail__nodes {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
    overflow-y: auto;
    scrollbar-width: none;
}

.sx-depth-rail__nodes::-webkit-scrollbar { display: none; }

.sx-depth-rail__nodes li button {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    width: 100%;
    padding: 0.35rem 0.25rem;
    background: transparent;
    border: none;
    color: var(--sx-text-dim);
    transition: color 0.25s, background 0.25s;
}

.sx-depth-rail__num {
    font-family: var(--sx-font-display);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.sx-depth-rail__label {
    font-size: 8px;
    letter-spacing: 0.08em;
    writing-mode: vertical-rl;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.3s, max-height 0.3s;
}

.sx-depth-rail__nodes li button:hover,
.sx-depth-rail__nodes li button.is-active {
    color: var(--sx-teal);
}

.sx-depth-rail__nodes li button.is-active .sx-depth-rail__num {
    text-shadow: 0 0 8px var(--sx-teal-glow);
}

.sx-depth-rail:hover .sx-depth-rail__label {
    opacity: 1;
    max-height: 4rem;
}

/* ——— Search Void ——— */
.sx-search-void {
    position: fixed;
    inset: 0;
    z-index: 950;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: clamp(8rem, 18vh, 12rem);
    background: rgba(10, 12, 16, 0.82);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.35s var(--sx-ease), visibility 0.35s;
}

.sx-search-void:not([hidden]),
.sx-search-void.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.sx-search-void__panel {
    width: min(560px, 92vw);
    padding: 2.5rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border-strong);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-lg), var(--sx-shadow-glow);
    transform: translateY(-24px) scale(0.98);
    transition: transform 0.4s var(--sx-ease);
}

.sx-search-void.is-open .sx-search-void__panel,
.sx-search-void:not([hidden]) .sx-search-void__panel {
    transform: translateY(0) scale(1);
}

.sx-search-void__close {
    float: right;
    background: none;
    border: none;
    color: var(--sx-text-muted);
    font-size: 1.75rem;
    line-height: 1;
    padding: 0;
    margin: -0.5rem -0.25rem 0.5rem 0;
    transition: color 0.25s;
}

.sx-search-void__close:hover { color: var(--sx-teal); }

.sx-search-void__form label {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.65rem;
    color: var(--sx-text-muted);
}

.sx-search-void__form input {
    width: 100%;
    padding: 0.9rem 1.1rem;
    margin-bottom: 1.25rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
    transition: border-color 0.25s, box-shadow 0.25s;
}

.sx-search-void__form input:focus {
    outline: none;
    border-color: var(--sx-teal);
    box-shadow: 0 0 0 3px rgba(61, 214, 198, 0.12);
}

/* ——— Mobile Orbit Drawer ——— */
.sx-mobile-orbit {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 920;
    width: min(320px, 88vw);
    padding: calc(var(--sx-nav-h) + 1.5rem) 1.75rem 2rem;
    background: var(--sx-surface);
    border-left: 1px solid var(--sx-border-strong);
    box-shadow: var(--sx-shadow-lg);
    transform: translateX(100%);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.4s var(--sx-ease), visibility 0.4s;
}

.sx-mobile-orbit:not([hidden]),
.sx-mobile-orbit.is-open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
}

.sx-mobile-orbit nav {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.sx-mobile-orbit a {
    display: block;
    padding: 0.85rem 0;
    font-family: var(--sx-font-display);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.08em;
    color: var(--sx-text);
    border-bottom: 1px solid var(--sx-border);
    transition: color 0.25s, padding-left 0.25s;
}

.sx-mobile-orbit a:hover {
    color: var(--sx-teal);
    padding-left: 0.5rem;
}

/* ——— Main ——— */
.sx-main {
    min-height: 60vh;
    padding-top: calc(var(--sx-nav-h) + 2rem);
}

.page-home .sx-main {
    padding-top: 0;
    padding-left: var(--sx-rail-w);
}

.page-home .sx-orbit-nav {
    position: fixed;
    width: 100%;
    background: transparent;
    border-bottom-color: transparent;
}

.page-home .sx-orbit-nav.is-scrolled {
    background: var(--sx-surface-glass);
    border-bottom-color: var(--sx-border);
}

/* ——— Animations ——— */
.sx-fade {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.7s var(--sx-ease), transform 0.7s var(--sx-ease);
}

.sx-fade.is-visible {
    opacity: 1;
    transform: none;
}

@keyframes sx-fade-up {
    from {
        opacity: 0;
        transform: translateY(32px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.sx-reveal {
    opacity: 0;
    transform: translateY(28px);
    transition:
        opacity 0.8s var(--sx-ease),
        transform 0.8s var(--sx-ease);
}

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

/* ——— Page Header ——— */
.sx-page-head {
    max-width: 720px;
    margin: 0 auto 3rem;
    padding: 0 var(--sx-gutter);
    text-align: center;
}

.sx-page-head__title {
    font-family: var(--sx-font-serif);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 400;
    margin: 0 0 0.85rem;
}

.sx-page-head__sub {
    color: var(--sx-text-muted);
    margin: 0;
    max-width: 540px;
    margin-inline: auto;
}

/* ——— Breadcrumbs ——— */
.sx-crumb {
    max-width: var(--sx-max);
    margin: 0 auto;
    padding: 0 var(--sx-gutter) 1.25rem;
}

.sx-crumb ol {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 12px;
}

.sx-crumb li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--sx-text-muted);
}

.sx-crumb li:not(:last-child)::after {
    content: '·';
    color: var(--sx-text-dim);
}

.sx-crumb a {
    color: var(--sx-text-muted);
}

.sx-crumb a:hover { color: var(--sx-teal); }

.sx-crumb span[aria-current] {
    color: var(--sx-amber);
}

/* ——— Policy ——— */
.sx-policy {
    max-width: 760px;
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-policy h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.4rem;
    margin: 2.5rem 0 1rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--sx-border);
}

.sx-policy h3 {
    font-family: var(--sx-font-display);
    font-size: 0.95rem;
    font-weight: 600;
    margin: 1.5rem 0 0.75rem;
    color: var(--sx-teal);
}

.sx-policy p,
.sx-policy li {
    color: var(--sx-text-muted);
}

.sx-policy ul,
.sx-policy ol {
    padding-left: 1.25rem;
}

/* ——— About: Orbit Story ——— */
.sx-orbit-story {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 3.5rem);
    max-width: var(--sx-max);
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
    align-items: center;
}

.sx-orbit-story--reverse {
    direction: rtl;
}

.sx-orbit-story--reverse > * {
    direction: ltr;
}

.sx-orbit-story__text h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.5rem, 3.5vw, 2.15rem);
    margin-bottom: 1.25rem;
}

.sx-orbit-story__text em {
    font-style: italic;
    color: var(--sx-teal);
}

.sx-orbit-story__text p {
    color: var(--sx-text-muted);
    margin: 0 0 1rem;
}

.sx-orbit-story__visual img {
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-float);
    transition: transform 0.5s var(--sx-ease), box-shadow 0.5s;
}

.sx-orbit-story__visual:hover img {
    transform: translateY(-4px);
    box-shadow: var(--sx-shadow-lg), 0 0 40px rgba(61, 214, 198, 0.08);
}

/* ——— Orbit Timeline ——— */
.sx-orbit-timeline {
    max-width: 900px;
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-orbit-timeline h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 2rem;
}

.sx-orbit-timeline__list {
    list-style: none;
    margin: 0;
    padding: 0;
    position: relative;
}

.sx-orbit-timeline__list::before {
    content: '';
    position: absolute;
    left: 39px;
    top: 0;
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg, var(--sx-teal), var(--sx-amber), transparent);
    opacity: 0.4;
}

.sx-orbit-timeline__list li {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem;
    padding: 1.5rem 0;
    position: relative;
}

.sx-orbit-timeline__list li:not(:last-child) {
    border-bottom: 1px solid var(--sx-border);
}

.sx-orbit-timeline__year {
    font-family: var(--sx-font-display);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--sx-amber);
    position: relative;
}

.sx-orbit-timeline__year::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    border-radius: 50%;
    background: var(--sx-teal);
    box-shadow: 0 0 10px var(--sx-teal-glow);
}

.sx-orbit-timeline__list strong {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 1rem;
    margin-bottom: 0.35rem;
}

.sx-orbit-timeline__list p {
    color: var(--sx-text-muted);
    margin: 0;
    font-size: 14px;
}

.sx-orbit-timeline__img {
    margin-top: 2rem;
}

.sx-orbit-timeline__img img {
    width: 100%;
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-md);
}

/* ——— Orbit Values ——— */
.sx-orbit-values {
    max-width: var(--sx-max);
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-orbit-values h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1.75rem;
}

.sx-orbit-values h2 em {
    font-style: italic;
    color: var(--sx-teal);
}

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

.sx-orbit-values__grid article {
    padding: 1.5rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    transition: border-color 0.3s, box-shadow 0.3s, transform 0.3s;
}

.sx-orbit-values__grid article:hover {
    border-color: var(--sx-border-strong);
    box-shadow: var(--sx-shadow-sm), 0 0 24px rgba(61, 214, 198, 0.06);
    transform: translateY(-2px);
}

.sx-orbit-values__grid strong {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sx-teal);
    margin-bottom: 0.5rem;
}

.sx-orbit-values__grid p {
    color: var(--sx-text-muted);
    margin: 0;
    font-size: 14px;
}

/* ——— Page CTA ——— */
.sx-page-cta {
    text-align: center;
    padding: 3rem var(--sx-gutter) 5rem;
}

.sx-page-cta h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: 1.5rem;
}

/* ——— Shop Orbit ——— */
.sx-shop-orbit {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: clamp(1.5rem, 4vw, 2.5rem);
    max-width: var(--sx-max);
    margin: 0 auto 3rem;
    padding: 0 var(--sx-gutter);
}

.sx-shop-orbit__filter {
    position: sticky;
    top: calc(var(--sx-nav-h) + 1.5rem);
    align-self: start;
    padding: 1.5rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
}

.sx-shop-orbit__search label {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--sx-text-muted);
    margin-bottom: 0.45rem;
}

.sx-shop-orbit__search input {
    width: 100%;
    padding: 0.7rem 0.85rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
    transition: border-color 0.25s;
}

.sx-shop-orbit__search input:focus {
    outline: none;
    border-color: var(--sx-teal);
}

.sx-shop-orbit__cats {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    margin-top: 1.5rem;
}

.sx-shop-orbit__cat {
    text-align: left;
    padding: 0.65rem 0.85rem;
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--sx-radius);
    color: var(--sx-text-muted);
    font-family: var(--sx-font-display);
    font-size: 12px;
    font-weight: 500;
    letter-spacing: 0.04em;
    transition: all 0.25s var(--sx-ease);
}

.sx-shop-orbit__cat:hover {
    color: var(--sx-text);
    border-color: var(--sx-border);
}

.sx-shop-orbit__cat.is-active {
    color: var(--sx-teal);
    border-color: var(--sx-border-strong);
    background: rgba(61, 214, 198, 0.06);
    box-shadow: inset 2px 0 0 var(--sx-teal);
}

.sx-shop-orbit__hint {
    margin-top: 1.75rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--sx-border);
}

.sx-shop-orbit__hint p:last-child {
    color: var(--sx-text-muted);
    font-size: 13px;
    margin: 0;
}

.sx-shop-orbit__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.sx-shop-island {
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    overflow: hidden;
    transition:
        transform 0.4s var(--sx-ease),
        box-shadow 0.4s var(--sx-ease),
        border-color 0.4s;
}

.sx-shop-island:hover {
    transform: translateY(-6px);
    border-color: var(--sx-border-strong);
    box-shadow: var(--sx-shadow-float);
}

.sx-shop-island__img {
    position: relative;
    overflow: hidden;
}

.sx-shop-island__img img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    transition: transform 0.6s var(--sx-ease);
}

.sx-shop-island:hover .sx-shop-island__img img {
    transform: scale(1.04);
}

.sx-shop-island__badge {
    position: absolute;
    top: 0.85rem;
    left: 0.85rem;
    padding: 0.35rem 0.65rem;
    font-family: var(--sx-font-display);
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    background: var(--sx-amber);
    color: var(--sx-bg);
    border-radius: var(--sx-radius);
}

.sx-shop-island__body {
    padding: 1.35rem;
}

.sx-shop-island__body h3 {
    font-family: var(--sx-font-serif);
    font-size: 1.15rem;
    margin: 0.35rem 0 0.5rem;
}

.sx-shop-island__price {
    font-family: var(--sx-font-display);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--sx-teal);
    margin-bottom: 0.85rem;
}

.sx-shop-island__specs {
    margin: 0 0 1.15rem;
    font-size: 12px;
}

.sx-shop-island__specs div {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--sx-border);
}

.sx-shop-island__specs dt {
    color: var(--sx-text-muted);
}

.sx-shop-island__specs dd {
    margin: 0;
    font-weight: 500;
}

.sx-shop-island__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.sx-shop-cta {
    text-align: center;
    padding: 3rem var(--sx-gutter) 5rem;
}

.sx-shop-cta h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.35rem, 3vw, 1.85rem);
    margin-bottom: 0.65rem;
}

.sx-shop-cta p {
    color: var(--sx-text-muted);
    margin: 0 0 1.5rem;
}

/* ——— FAQ Orbit ——— */
.sx-faq-orbit {
    max-width: 760px;
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-faq-orbit__intro {
    color: var(--sx-text-muted);
    margin-bottom: 2rem;
}

.sx-faq-orbit__tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.75rem;
}

.sx-faq-orbit__tab {
    padding: 0.6rem 1.1rem;
    background: transparent;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text-muted);
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.06em;
    transition: all 0.25s var(--sx-ease);
}

.sx-faq-orbit__tab:hover {
    border-color: var(--sx-border-strong);
    color: var(--sx-text);
}

.sx-faq-orbit__tab.is-active {
    border-color: var(--sx-teal);
    color: var(--sx-teal);
    background: rgba(61, 214, 198, 0.06);
    box-shadow: 0 0 20px rgba(61, 214, 198, 0.08);
}

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

.sx-faq-orbit__panel.is-active {
    display: block;
    animation: sx-fade-up 0.4s var(--sx-ease);
}

.sx-faq-orbit__item {
    border-bottom: 1px solid var(--sx-border);
}

.sx-faq-orbit__q {
    width: 100%;
    text-align: left;
    padding: 1.25rem 2rem 1.25rem 0;
    background: none;
    border: none;
    color: var(--sx-text);
    font-family: var(--sx-font-serif);
    font-size: 1.05rem;
    position: relative;
    transition: color 0.25s;
}

.sx-faq-orbit__q::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--sx-font-display);
    font-size: 1.25rem;
    color: var(--sx-teal);
    transition: transform 0.3s var(--sx-ease);
}

.sx-faq-orbit__q[aria-expanded="true"] {
    color: var(--sx-teal);
}

.sx-faq-orbit__q[aria-expanded="true"]::after {
    transform: translateY(-50%) rotate(45deg);
}

.sx-faq-orbit__a {
    overflow: hidden;
    transition: max-height 0.4s var(--sx-ease);
}

.sx-faq-orbit__a:not([hidden]) {
    padding-bottom: 1.25rem;
}

.sx-faq-orbit__a p {
    color: var(--sx-text-muted);
    margin: 0;
    font-size: 14px;
    line-height: 1.8;
}

.sx-faq-orbit__cta {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2.5rem;
    border-top: 1px solid var(--sx-border);
}

.sx-faq-orbit__cta h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.sx-faq-orbit__cta p {
    color: var(--sx-text-muted);
    margin: 0 0 1.5rem;
}

/* ——— Contact Orbit ——— */
.sx-contact-orbit {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(2rem, 5vw, 3.5rem);
    max-width: var(--sx-max);
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-contact-orbit__details h2,
.sx-contact-orbit__form h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.35rem;
    margin-bottom: 1.25rem;
}

.sx-contact-orbit__addr > div {
    margin-bottom: 1.25rem;
}

.sx-contact-orbit__addr p,
.sx-contact-orbit__addr a {
    display: block;
    margin: 0.25rem 0;
}

.sx-contact-orbit__map iframe {
    width: 100%;
    height: 220px;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
}

.sx-contact-orbit__notes {
    font-size: 13px;
    color: var(--sx-text-muted);
    padding-left: 1.1rem;
    margin: 1.5rem 0 0;
}

.sx-contact-orbit__form {
    padding: clamp(1.5rem, 4vw, 2rem);
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-sm);
}

/* ——— Forms ——— */
.sx-form-row {
    margin-bottom: 1.15rem;
}

.sx-form-row label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 0.4rem;
    color: var(--sx-text-muted);
}

.sx-form-row label span {
    color: var(--sx-amber);
}

.sx-form-row input,
.sx-form-row select,
.sx-form-row textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
    transition: border-color 0.25s, box-shadow 0.25s;
}

.sx-form-row input:focus,
.sx-form-row select:focus,
.sx-form-row textarea:focus {
    outline: none;
    border-color: var(--sx-teal);
    box-shadow: 0 0 0 3px rgba(61, 214, 198, 0.1);
}

.sx-form-row textarea {
    resize: vertical;
    min-height: 120px;
}

.sx-form-row--check label {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    cursor: pointer;
}

.sx-form-row--check input {
    width: auto;
    margin-top: 0.25rem;
    accent-color: var(--sx-teal);
}

.sx-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.sx-form-row--full {
    grid-column: 1 / -1;
}

.sx-form-note {
    font-size: 13px;
    color: var(--sx-teal-dim);
    margin-top: 1rem;
}

/* ——— Cart Drift Vault ——— */
.sx-cart-vault {
    position: relative;
    max-width: calc(var(--sx-max) + 80px);
    margin: 0 auto 5rem;
    padding: 0 var(--sx-gutter);
}

.sx-cart-vault__atmosphere {
    position: absolute;
    inset: -4rem 0 auto;
    height: 420px;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.sx-cart-vault__orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.35;
}

.sx-cart-vault__orb--a {
    width: 280px;
    height: 280px;
    top: -40px;
    left: 8%;
    background: var(--sx-teal-glow);
}

.sx-cart-vault__orb--b {
    width: 200px;
    height: 200px;
    top: 60px;
    right: 12%;
    background: var(--sx-amber-glow);
}

.sx-cart-vault__orb--c {
    width: 140px;
    height: 140px;
    top: 180px;
    left: 45%;
    background: rgba(61, 214, 198, 0.15);
}

.sx-cart-vault__empty,
.sx-cart-vault__active {
    position: relative;
    z-index: 1;
}

.sx-cart-vault__void {
    position: relative;
    text-align: center;
    padding: clamp(3.5rem, 10vw, 6rem) 2rem;
    background: var(--sx-surface-glass);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-float);
    overflow: hidden;
}

.sx-cart-vault__ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: min(420px, 80vw);
    height: min(420px, 80vw);
    margin: calc(min(420px, 80vw) / -2) 0 0 calc(min(420px, 80vw) / -2);
    border: 1px dashed rgba(61, 214, 198, 0.2);
    border-radius: 50%;
    animation: sx-cart-ring 18s linear infinite;
}

@keyframes sx-cart-ring {
    to { transform: rotate(360deg); }
}

.sx-cart-vault__void h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin: 0.75rem 0;
    position: relative;
}

.sx-cart-vault__void h2 span {
    color: var(--sx-teal);
    font-style: italic;
}

.sx-cart-vault__void p {
    color: var(--sx-text-muted);
    max-width: 440px;
    margin: 0 auto 1.75rem;
    position: relative;
}

.sx-cart-vault__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.sx-cart-vault__meta-pill {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.65rem 1rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-sm);
    min-width: 120px;
}

.sx-cart-vault__meta-pill strong {
    font-family: var(--sx-font-display);
    font-size: 14px;
    font-weight: 600;
}

.sx-cart-vault__grid {
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 360px);
    gap: clamp(1.5rem, 4vw, 2.75rem);
    align-items: start;
}

.sx-cart-vault__stage-head {
    margin-bottom: 1.5rem;
}

.sx-cart-vault__stage-head h2 {
    font-family: var(--sx-font-serif);
    font-size: clamp(1.35rem, 3vw, 1.75rem);
    margin: 0 0 0.35rem;
}

.sx-cart-vault__stage-head h2 span {
    color: var(--sx-teal);
}

.sx-cart-vault__stage-head p {
    margin: 0;
    font-size: 14px;
    color: var(--sx-text-muted);
}

.sx-cart-vault__drift {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
}

.sx-vault-item {
    --vault-tilt: calc((var(--vault-i, 0) - 1) * 0.4deg);
    display: grid;
    grid-template-columns: 140px 1fr auto;
    gap: 1.25rem;
    align-items: center;
    padding: 1rem 1.25rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-float);
    transform: translateX(calc(var(--vault-i, 0) * 8px)) rotate(var(--vault-tilt));
    transition: transform 0.35s var(--sx-ease), border-color 0.25s, box-shadow 0.35s;
}

.sx-vault-item:hover {
    transform: translateX(calc(var(--vault-i, 0) * 8px + 4px)) rotate(0deg);
    border-color: var(--sx-border-strong);
    box-shadow: var(--sx-shadow-md), 0 0 32px rgba(61, 214, 198, 0.06);
}

.sx-vault-item__img {
    position: relative;
    margin: 0;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border-radius: var(--sx-radius);
    background: var(--sx-bg);
}

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

.sx-vault-item__index {
    position: absolute;
    top: 0.5rem;
    left: 0.5rem;
    font-family: var(--sx-font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.08em;
    padding: 0.2rem 0.45rem;
    background: rgba(10, 12, 16, 0.75);
    color: var(--sx-teal);
    border: 1px solid rgba(61, 214, 198, 0.25);
    border-radius: 2px;
}

.sx-vault-item__name {
    font-family: var(--sx-font-display);
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 0.35rem;
    line-height: 1.35;
}

.sx-vault-item__unit {
    margin: 0 0 0.85rem;
    font-size: 13px;
    color: var(--sx-text-muted);
}

.sx-vault-item__unit span {
    font-size: 11px;
    color: var(--sx-text-dim);
}

.sx-vault-item__controls {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.75rem 1rem;
}

.sx-qty {
    display: inline-flex;
    align-items: center;
    gap: 0;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    overflow: hidden;
    background: var(--sx-bg);
}

.sx-qty button {
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--sx-text);
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

.sx-qty button:hover {
    background: rgba(61, 214, 198, 0.1);
    color: var(--sx-teal);
}

.sx-qty span {
    min-width: 2rem;
    text-align: center;
    font-family: var(--sx-font-display);
    font-size: 14px;
    font-weight: 600;
    border-left: 1px solid var(--sx-border);
    border-right: 1px solid var(--sx-border);
    padding: 0.5rem 0;
}

.sx-vault-item__remove {
    border: none;
    background: none;
    padding: 0;
    font-size: 12px;
    color: var(--sx-text-dim);
    cursor: pointer;
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: color 0.2s;
}

.sx-vault-item__remove:hover {
    color: var(--sx-amber);
}

.sx-vault-item__total {
    text-align: right;
    min-width: 100px;
}

.sx-vault-item__total strong {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 1.05rem;
    color: var(--sx-teal);
    margin-top: 0.2rem;
}

.sx-cart-vault__route-head {
    margin-bottom: 1rem;
}

.sx-cart-vault__route-head h3 {
    font-family: var(--sx-font-serif);
    font-size: 1.15rem;
    margin: 0.25rem 0 0;
}

.sx-cart-vault__route-head h3 span {
    color: var(--sx-amber);
}

.sx-cart-vault__route-track {
    display: flex;
    gap: 0.85rem;
    overflow-x: auto;
    padding: 0.5rem 0 1rem;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--sx-teal-dim) transparent;
}

.sx-cart-vault__route-track::-webkit-scrollbar {
    height: 4px;
}

.sx-cart-vault__route-track::-webkit-scrollbar-thumb {
    background: var(--sx-teal-dim);
    border-radius: 2px;
}

.sx-route-pick {
    flex: 0 0 min(240px, 78vw);
    scroll-snap-align: start;
    text-align: left;
    padding: 1.1rem 1.15rem;
    background: var(--sx-surface);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    cursor: pointer;
    transition: border-color 0.25s, transform 0.3s var(--sx-ease), box-shadow 0.3s;
}

.sx-route-pick:hover {
    transform: translateY(-3px);
    border-color: var(--sx-border-strong);
}

.sx-route-pick.is-active {
    border-color: var(--sx-teal);
    box-shadow: 0 12px 40px rgba(61, 214, 198, 0.12), inset 0 0 0 1px rgba(61, 214, 198, 0.12);
}

.sx-route-pick__step {
    display: inline-block;
    font-family: var(--sx-font-display);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--sx-amber);
    margin-bottom: 0.35rem;
}

.sx-route-pick__fee {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 700;
    color: var(--sx-teal);
    margin-bottom: 0.3rem;
}

.sx-route-pick strong {
    display: block;
    font-size: 14px;
    margin-bottom: 0.3rem;
}

.sx-route-pick__desc {
    display: block;
    font-size: 11px;
    line-height: 1.45;
    color: var(--sx-text-muted);
}

.sx-cart-vault__ledger {
    position: sticky;
    top: calc(var(--sx-nav-h) + 1.5rem);
}

.sx-cart-vault__ledger-halo {
    position: absolute;
    inset: -20px;
    border: 1px solid rgba(61, 214, 198, 0.12);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.6;
}

.sx-cart-vault__ledger-inner {
    position: relative;
    padding: 1.75rem;
    background: var(--sx-surface-glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--sx-border-strong);
    border-radius: var(--sx-radius-lg);
    box-shadow: var(--sx-shadow-lg), var(--sx-shadow-glow);
}

.sx-cart-vault__ledger-head h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.35rem;
    margin: 0.35rem 0 1.25rem;
}

.sx-cart-vault__ledger-head h2 span {
    color: var(--sx-teal);
}

.sx-cart-vault__coupon {
    margin: 1.5rem 0;
    padding-top: 1.25rem;
    border-top: 1px solid var(--sx-border);
}

.sx-cart-vault__coupon label {
    display: block;
    font-size: 12px;
    margin-bottom: 0.45rem;
    color: var(--sx-text-muted);
}

.sx-cart-vault__coupon-row {
    display: flex;
    gap: 0.5rem;
}

.sx-cart-vault__coupon-row input {
    flex: 1;
    padding: 0.65rem 0.85rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
}

.sx-cart-vault__coupon-hint {
    font-size: 11px;
    color: var(--sx-text-dim);
    margin: 0.5rem 0 0;
}

.sx-cart-vault__coupon-hint code {
    color: var(--sx-amber);
    background: rgba(212, 165, 116, 0.1);
    padding: 0.1rem 0.35rem;
    border-radius: 2px;
}

.sx-cart-vault__checkout {
    width: 100%;
    justify-content: center;
    margin-top: 0.5rem;
}

.sx-cart-vault__trust {
    list-style: none;
    margin: 1.25rem 0 0;
    padding: 1rem 0 0;
    border-top: 1px dashed var(--sx-border);
}

.sx-cart-vault__trust li {
    font-size: 11px;
    color: var(--sx-text-dim);
    padding: 0.25rem 0;
    padding-left: 1rem;
    position: relative;
}

.sx-cart-vault__trust li::before {
    content: '◦';
    position: absolute;
    left: 0;
    color: var(--sx-teal-dim);
}

.sx-cart-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0;
    font-size: 14px;
    color: var(--sx-text-muted);
}

.sx-cart-line span:last-child {
    color: var(--sx-text);
    font-weight: 500;
}

.sx-cart-line--total {
    border-top: 1px solid var(--sx-border-strong);
    margin-top: 0.75rem;
    padding-top: 1rem;
    font-size: 16px;
    font-weight: 600;
    color: var(--sx-text);
}

.sx-cart-line--total span:last-child {
    font-family: var(--sx-font-display);
    font-size: 1.15rem;
    color: var(--sx-teal);
}

/* ——— Checkout Orbit ——— */
.sx-checkout-orbit {
    max-width: 720px;
    margin: 0 auto 4rem;
    padding: 0 var(--sx-gutter);
}

.sx-checkout-orbit__empty,
.sx-checkout-success {
    text-align: center;
    padding: clamp(2.5rem, 6vw, 4rem) 1.5rem;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
    background: var(--sx-surface);
}

.sx-checkout-orbit__empty h2,
.sx-checkout-success h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.sx-checkout-orbit__empty p,
.sx-checkout-success p {
    color: var(--sx-text-muted);
    margin: 0 0 1.5rem;
}

.sx-checkout-block {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--sx-border);
}

.sx-checkout-block h2 {
    font-family: var(--sx-font-serif);
    font-size: 1.25rem;
    margin-bottom: 1.15rem;
}

.sx-pay-options label {
    display: block;
    margin-bottom: 0.75rem;
    cursor: pointer;
    font-size: 14px;
    transition: color 0.25s;
}

.sx-pay-options label:hover {
    color: var(--sx-teal);
}

.sx-pay-options input {
    margin-right: 0.5rem;
    accent-color: var(--sx-teal);
}

.sx-card-fields {
    margin-top: 1rem;
    padding: 1.25rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
}

.sx-checkout-totals {
    margin-top: 1.25rem;
    padding: 1rem;
    background: var(--sx-bg);
    border-radius: var(--sx-radius-lg);
}

/* ——— Drift Footer ——— */
.sx-drift-foot {
    position: relative;
    margin-top: 4rem;
    background: var(--sx-surface);
    border-top: 1px solid var(--sx-border);
    overflow: hidden;
}

.sx-drift-foot__halo {
    position: absolute;
    top: -120px;
    left: 50%;
    width: min(800px, 120vw);
    height: 240px;
    margin-left: min(-400px, -60vw);
    background: radial-gradient(ellipse at center, var(--sx-teal-glow) 0%, transparent 70%);
    opacity: 0.35;
    pointer-events: none;
}

.sx-drift-foot__grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: clamp(1.5rem, 4vw, 2.5rem);
    max-width: var(--sx-max);
    margin: 0 auto;
    padding: clamp(2.5rem, 6vw, 3.5rem) var(--sx-gutter) 2rem;
    position: relative;
}

.sx-drift-foot__identity h2 {
    font-family: var(--sx-font-display);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin: 0.5rem 0;
}

.sx-drift-foot__identity > p {
    color: var(--sx-text-muted);
    font-size: 14px;
    max-width: 320px;
}

.sx-drift-foot__orbit-stats {
    display: flex;
    gap: clamp(1rem, 3vw, 2rem);
    list-style: none;
    margin: 1.75rem 0 0;
    padding: 0;
}

.sx-drift-foot__orbit-stats strong {
    display: block;
    font-family: var(--sx-font-display);
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--sx-teal);
    line-height: 1;
}

.sx-drift-foot__orbit-stats span {
    font-size: 10px;
    letter-spacing: 0.06em;
    color: var(--sx-text-muted);
}

.sx-drift-foot h3 {
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--sx-amber);
    margin: 0 0 1rem;
}

.sx-foot-stack {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.sx-foot-stack a {
    color: var(--sx-text-muted);
    font-size: 13px;
    transition: color 0.25s, padding-left 0.25s;
}

.sx-foot-stack a:hover {
    color: var(--sx-teal);
    padding-left: 0.35rem;
}

.sx-drift-foot__studio address {
    font-size: 13px;
    line-height: 1.85;
    color: var(--sx-text-muted);
}

.sx-drift-foot__studio address a {
    display: block;
    color: var(--sx-text-muted);
}

.sx-drift-foot__studio address a:hover {
    color: var(--sx-teal);
}

.sx-drift-foot__social {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1.25rem;
}

.sx-drift-foot__social a {
    font-family: var(--sx-font-display);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--sx-text-muted);
}

.sx-drift-foot__social a:hover {
    color: var(--sx-amber);
}

.sx-drift-foot__lower {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: var(--sx-max);
    margin: 0 auto;
    padding: 0 var(--sx-gutter) 2rem;
}

.sx-drift-foot__map iframe {
    width: 100%;
    height: 180px;
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius-lg);
}

.sx-drift-foot__news label {
    display: block;
    font-size: 12px;
    color: var(--sx-text-muted);
    margin-bottom: 0.5rem;
}

.sx-drift-foot__news-row {
    display: flex;
    gap: 0.5rem;
}

.sx-drift-foot__news-row input {
    flex: 1;
    padding: 0.7rem 0.9rem;
    background: var(--sx-bg);
    border: 1px solid var(--sx-border);
    border-radius: var(--sx-radius);
    color: var(--sx-text);
}

.sx-drift-foot__legal {
    text-align: center;
    padding: 1.5rem var(--sx-gutter);
    border-top: 1px solid var(--sx-border);
    font-size: 11px;
    color: var(--sx-text-dim);
}

.sx-drift-foot__legal p {
    margin: 0.25rem 0;
}

/* ——— Back to Top ——— */
.sx-back-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 800;
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    background: var(--sx-surface);
    border: 1px solid var(--sx-teal);
    border-radius: 50%;
    color: var(--sx-teal);
    box-shadow: var(--sx-shadow-sm), 0 0 20px rgba(61, 214, 198, 0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(16px);
    transition:
        opacity 0.35s var(--sx-ease),
        transform 0.35s var(--sx-ease),
        visibility 0.35s,
        box-shadow 0.35s;
}

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

.sx-back-top:hover {
    background: var(--sx-teal);
    color: var(--sx-bg);
    box-shadow: var(--sx-shadow-glow);
}

.page-home .sx-back-top {
    right: calc(2rem + var(--sx-rail-w));
}

/* ——— Toast ——— */
.sx-toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    z-index: 999;
    padding: 0.9rem 1.75rem;
    background: var(--sx-surface-raised);
    border: 1px solid var(--sx-teal);
    border-radius: var(--sx-radius-lg);
    color: var(--sx-text);
    font-size: 13px;
    font-weight: 500;
    box-shadow: var(--sx-shadow-md), var(--sx-shadow-glow);
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(80px);
    transition:
        transform 0.45s var(--sx-ease),
        opacity 0.45s var(--sx-ease),
        visibility 0.45s;
}

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

.sx-toast:empty {
    display: none;
}

/* ——— Responsive ——— */
@media (max-width: 1100px) {
    .sx-orbit-nav__links { display: none; }
    .sx-orbit-nav__burger { display: flex; }
}

@media (max-width: 960px) {
    .sx-depth-rail { display: none; }

    .page-home .sx-back-top {
        right: 2rem;
    }

    .sx-orbit-story,
    .sx-orbit-story--reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

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

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

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

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

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

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

    .sx-vault-item {
        transform: none;
    }

    .sx-vault-item:hover {
        transform: translateY(-2px);
    }

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

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

@media (max-width: 640px) {
    :root {
        --sx-nav-h: 64px;
    }

    .sx-orbit-nav__wordmark em { display: none; }

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

    .sx-vault-item {
        grid-template-columns: 100px 1fr;
        grid-template-rows: auto auto;
    }

    .sx-vault-item__total {
        grid-column: 1 / -1;
        display: flex;
        justify-content: space-between;
        align-items: center;
        text-align: left;
        padding-top: 0.75rem;
        border-top: 1px dashed var(--sx-border);
    }

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

    .sx-orbit-timeline__list li {
        grid-template-columns: 60px 1fr;
        gap: 1rem;
    }

    .sx-orbit-timeline__list::before {
        left: 29px;
    }

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

    .sx-drift-foot__orbit-stats {
        flex-wrap: wrap;
    }

    .sx-back-top {
        bottom: 1.25rem;
        right: 1.25rem;
        width: 40px;
        height: 40px;
    }
}

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

    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .sx-fade,
    .sx-reveal {
        opacity: 1;
        transform: none;
    }
}