:root { --c-moss: #AEBF96; --c-moss-dark: #7F8C6D; }

/* ── One surface system (tokens on <body> so light/dark both resolve) ── */
body {
    --sk-card:        color-mix(in srgb, var(--md-sys-color-primary) 3%, var(--md-sys-color-surface-container-low));
    --sk-tint:        color-mix(in srgb, var(--md-sys-color-primary) 6%, var(--sk-card));
    --sk-line:        var(--md-sys-color-outline-variant);
    --sk-line-strong: var(--md-sys-color-outline);
}
.md3-main, .md3-main > section { background: transparent !important; }

/* Cards: same fill + hairline in light AND dark (beats the body.dark rules in soc_detail.css) */
.md3-hero-card, .md3-spec-card, .md3-bench-card, .md3-related-card,
body.dark .md3-spec-card, body.dark .md3-bench-card {
    background-color: var(--sk-card);
    border-color: var(--sk-line);
}
.md3-hero-card {
    background-image: radial-gradient(60% 90% at 100% 0%, color-mix(in srgb, var(--md-sys-color-primary) 9%, transparent), transparent 70%);
}
/* Headers, toggles and quick-spec rows share one soft tint */
.md3-spec-card__header, body.dark .md3-spec-card__header, .md3-spec-card__toggle { background: var(--sk-tint); }
.md3-spec-card__toggle:hover { background: var(--md-sys-color-primary-container); }
.md3-qs-row { background: var(--sk-tint); }
.md3-qs-row:hover { background: color-mix(in srgb, var(--md-sys-color-primary) 10%, var(--sk-card)); }
.md3-qs-row--accent { background: var(--md-sys-color-primary-container); }
/* "Show more" fade must match the card fill or it shows as a band */
.md3-spec-list-wrap::after, body.dark .md3-spec-list-wrap::after {
    background: linear-gradient(to bottom, transparent, var(--sk-card) 90%);
}

/* Section titles get the same accent bar as the index */
.md3-section-title { position: relative; padding-left: 17px; }
.md3-section-title::before {
    content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
    width: 5px; height: 28px; border-radius: 4px;
    background: linear-gradient(180deg, var(--md-sys-color-primary), var(--c-moss));
}
.md3-related-section__accent { width: 5px; background: linear-gradient(180deg, var(--md-sys-color-primary), var(--c-moss)); }

/* Top bar: index's compact mobile sizing */
@media (max-width: 480px) {
    .md3-top-app-bar { height: 56px; }
    .md3-top-app-bar__inner { padding: 0 12px; }
    .md3-top-app-bar__logo-img { height: 38px; }
}

/* ── Scroll progress + back-to-top ── */
.md3-scroll-progress {
    position: absolute; left: 0; bottom: -1px; height: 3px; width: 0; z-index: 2;
    background: linear-gradient(90deg, var(--c-moss), var(--md-sys-color-primary));
    transition: width 80ms linear;
}
.md3-to-top {
    position: fixed; right: 20px; bottom: 24px; z-index: 250;
    width: 48px; height: 48px; border-radius: 16px; cursor: pointer;
    display: grid; place-items: center;
    border: 1px solid var(--sk-line);
    background: color-mix(in srgb, var(--md-sys-color-surface-container-high) 90%, transparent);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    color: var(--md-sys-color-primary); box-shadow: var(--md-sys-elevation-2);
    opacity: 0; transform: translateY(12px); pointer-events: none;
    transition: opacity .25s ease, transform .25s ease;
}
.md3-to-top.visible { opacity: 1; transform: none; pointer-events: auto; }
.md3-to-top:hover { background: var(--md-sys-color-primary-container); }
@media (max-width: 767px) { .md3-to-top { right: 16px; bottom: calc(100px + env(safe-area-inset-bottom, 0px)); } }

/* ── Identity lockup: [SOKYO] | [PARTNER] ── */
.sk-lockup__divider { width: 1px; height: 28px; flex-shrink: 0; background: var(--sk-line-strong); opacity: .6; }
.sk-partner { display: inline-flex; align-items: center; flex-shrink: 0; }
.sk-partner img { height: 44px; width: auto; max-width: 160px; object-fit: contain; }
.sk-partner__fallback {
    display: none; flex-direction: column; gap: 1px;
    padding: 6px 12px; border-radius: 10px; border: 1.5px dashed var(--sk-line-strong);
    font-size: 10px; font-weight: 800; letter-spacing: .14em; line-height: 1.25; white-space: nowrap;
    color: var(--md-sys-color-on-surface-variant);
}
.sk-partner.is-empty .sk-partner__fallback { display: flex; }
.sk-partner--sm img { height: 26px; }
.sk-partner--sm .sk-partner__fallback { padding: 3px 8px; font-size: 8px; border-radius: 8px; }
.md3-top-app-bar__inner .sk-lockup__divider { height: 24px; margin-left: 4px; }
@media (max-width: 480px) {
    .md3-top-app-bar__inner .sk-partner--sm img { height: 22px; max-width: 90px; }
    .md3-top-app-bar__inner .sk-partner--sm .sk-partner__fallback { padding: 2px 6px; font-size: 7px; }
}
.sk-panel-id {
    display: flex; align-items: center; justify-content: center; gap: 12px;
    padding: 12px 16px 16px; border-top: 1px solid var(--sk-line);
    font-size: 11px; font-weight: 600; letter-spacing: .04em; color: var(--md-sys-color-on-surface-variant);
}

/* ============================================================================
   RICH FOOTER (overrides the plain .md3-footer in soc_detail.css)
   ============================================================================ */

.md3-footer--rich {
    position: relative; margin-top: 72px; padding-top: 48px;
    background: transparent !important; border-top: 0;
}
.md3-footer--rich::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px; background: var(--sk-line); }
@media (max-width: 767px) { .md3-footer--rich { margin-top: 48px; padding-top: 32px; } }

.md3-footer__cta {
    position: relative; z-index: 2; overflow: hidden;
    max-width: 1216px; width: calc(100% - 8px); margin: 0 auto 48px;
    padding: 28px 32px; border-radius: 28px;
    display: flex; flex-direction: column; gap: 20px; align-items: flex-start;
    background: linear-gradient(120deg, var(--md-sys-color-primary), color-mix(in srgb, var(--md-sys-color-primary) 70%, var(--c-moss)));
    color: var(--md-sys-color-on-primary); box-shadow: var(--md-sys-elevation-3);
}
.md3-footer__cta::after {
    content: 'memory'; font-family: 'Material Symbols Rounded'; font-size: 200px; line-height: 1;
    position: absolute; right: -20px; bottom: -60px; opacity: .12; pointer-events: none;
}
@media (min-width: 768px) { .md3-footer__cta { flex-direction: row; align-items: center; justify-content: space-between; padding: 36px 48px; } }
.md3-footer__cta h3 { font-size: clamp(20px, 2.6vw, 28px); font-weight: 600; letter-spacing: -.02em; margin-bottom: 4px; }
.md3-footer__cta p  { font-size: 14px; opacity: .9; }
.md3-footer__cta-btn {
    position: relative; z-index: 1; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
    padding: 14px 28px; border-radius: 999px; font-size: 15px; font-weight: 600;
    background: var(--md-sys-color-on-primary); color: var(--md-sys-color-primary);
}

/* soc_detail.css makes the inner block-level; the new footer needs a grid */
.md3-footer--rich .md3-footer__inner { display: grid; grid-template-columns: 1fr; row-gap: 44px; }
.md3-footer--rich .md3-footer__brand,
.md3-footer--rich .md3-footer__links { margin-bottom: 0; }

.md3-footer__top { display: grid; grid-template-columns: 1fr; gap: 32px; align-items: start; }
@media (min-width: 900px) { .md3-footer__top { grid-template-columns: 1fr 1fr; gap: 64px; } }
.md3-footer--rich .md3-footer__brand { display: flex; flex-direction: column; align-items: center; justify-content: flex-start; }
@media (min-width: 900px) { .md3-footer--rich .md3-footer__brand { align-items: flex-start; } }
.md3-footer__lockup { display: flex; align-items: center; justify-content: center; gap: 18px; flex-wrap: wrap; }
@media (min-width: 900px) { .md3-footer__lockup { justify-content: flex-start; } }
.md3-footer__lockup-divider { width: 1px; height: 40px; background: var(--sk-line-strong); opacity: .6; }
.md3-footer__partner { display: inline-flex; align-items: center; min-height: 48px; }
.md3-footer__partner-img { height: 44px; width: auto; max-width: 160px; object-fit: contain; }
.md3-footer__partner-fallback {
    display: none; flex-direction: column; gap: 2px; padding: 8px 14px; border-radius: 12px;
    border: 1.5px dashed var(--sk-line-strong);
    font-size: 11px; font-weight: 800; letter-spacing: .14em; line-height: 1.25;
    color: var(--md-sys-color-on-surface-variant);
}
.md3-footer__partner.is-empty .md3-footer__partner-fallback { display: flex; }
.md3-footer__tagline { margin: 14px auto 0; max-width: 340px; font-size: 13px; line-height: 1.6; text-align: center; color: var(--md-sys-color-on-surface-variant); }
@media (min-width: 900px) { .md3-footer__tagline { margin-inline: 0; text-align: left; } }

.md3-newsletter { padding: 24px; border-radius: 24px; background: var(--sk-card); border: 1px solid var(--sk-line); }
.md3-newsletter__title { font-size: 18px; font-weight: 600; letter-spacing: -.01em; margin-bottom: 4px; color: var(--md-sys-color-on-surface); }
.md3-newsletter__lead  { font-size: 13px; line-height: 1.5; margin-bottom: 16px; color: var(--md-sys-color-on-surface-variant); }
.md3-newsletter__form {
    display: flex; align-items: center; gap: 8px; padding: 6px 6px 6px 16px;
    border-radius: 999px; background: var(--md-sys-color-surface); border: 1.5px solid var(--sk-line);
    transition: border-color .15s, box-shadow .15s;
}
.md3-newsletter__form:focus-within { border-color: var(--md-sys-color-primary); box-shadow: 0 0 0 4px color-mix(in srgb, var(--md-sys-color-primary) 14%, transparent); }
.md3-newsletter__form .material-symbols-rounded { font-size: 20px; color: var(--md-sys-color-on-surface-variant); }
.md3-newsletter__form input { flex: 1; min-width: 0; border: none; outline: none; background: transparent; font: inherit; font-size: 14px; padding: 10px 0; color: var(--md-sys-color-on-surface); }
.md3-newsletter__form .md3-btn { padding: 10px 20px; }
.md3-newsletter__note { min-height: 1.2em; margin-top: 10px; font-size: 12px; color: var(--md-sys-color-on-surface-variant); }
.md3-newsletter__note.is-ok    { color: var(--md-sys-color-primary); }
.md3-newsletter__note.is-error { color: var(--md-sys-color-error); }

.md3-footer--rich .md3-footer__col-title { font-size: 12px; letter-spacing: .12em; text-transform: uppercase; color: var(--md-sys-color-primary); margin-bottom: 16px; }
.md3-footer--rich .md3-footer__link { width: fit-content; transition: color .15s, transform .25s ease; }
.md3-footer--rich .md3-footer__link:hover { transform: translateX(4px); }
@media (max-width: 767px) { .md3-footer--rich .md3-footer__link { margin-inline: auto; } }
.md3-footer__meta { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.md3-footer__pill {
    font-size: 11px; font-weight: 600; letter-spacing: .02em; padding: 5px 12px; border-radius: 999px;
    border: 1px solid var(--sk-line); background: var(--sk-card); color: var(--md-sys-color-on-surface-variant);
}
.md3-footer__pill--brand { color: var(--md-sys-color-on-primary-container); background: var(--md-sys-color-primary-container); border-color: transparent; }
.md3-footer--rich .md3-footer__social .md3-icon-btn { background: var(--sk-card); border: 1px solid var(--sk-line); }
.md3-footer--rich .md3-footer__social .md3-icon-btn:hover { background: var(--md-sys-color-primary-container); color: var(--md-sys-color-primary); }

.md3-footer__wordmark {
    display: block; overflow: hidden; text-align: center; margin-top: 8px; line-height: .8;
    font-family: 'Montserrat', sans-serif; font-weight: 900; letter-spacing: -.04em;
    font-size: min(24vw, 280px); height: calc(min(24vw, 280px) * .43);
    color: transparent; -webkit-text-stroke: 1.5px var(--sk-line-strong);
    user-select: none; pointer-events: none;
}
@media (min-width: 900px) { .md3-footer__wordmark { font-size: clamp(120px, 20vw, 280px); height: 120px; } }