@import url("./font-system.css");

/*
 * Sleep setting detail pages — reference research layout.
 * Rebuilds the visual language of the archived research pages without the old service CTAs.
 */

.sleep-scene-reference {
    --ref-ink: #0f172a;
    --ref-text: #475569;
    --ref-muted: #64748b;
    --ref-line: #e2e8f0;
    --ref-accent: #cba174;
    --ref-accent-deep: #a16207;
    --ref-accent-rgb: 203, 161, 116;
    --ref-soft: #fffbf5;
    --ref-hero-a: rgba(5, 12, 24, 0.82);
    --ref-hero-b: rgba(18, 43, 59, 0.58);
    --ref-image: url("../assets/images/sleep-scenes/scene-home.webp");
    width: 100%;
    margin: 0;
    background: #ffffff;
    color: var(--ref-text);
}

.sleep-scene-campus {
    --ref-accent: #cba174;
    --ref-accent-deep: #9a620f;
    --ref-accent-rgb: 203, 161, 116;
    --ref-soft: #fffbeb;
    --ref-hero-b: rgba(18, 43, 59, 0.46);
    --ref-image: url("../assets/images/sleep-scenes/scene-campus.webp");
}

.sleep-scene-work {
    --ref-accent: #60a5fa;
    --ref-accent-deep: #2563eb;
    --ref-accent-rgb: 96, 165, 250;
    --ref-soft: #eff6ff;
    --ref-hero-b: rgba(30, 58, 138, 0.58);
    --ref-image: url("../assets/images/sleep-scenes/scene-work.webp");
}

.sleep-scene-travel {
    --ref-accent: #d4af37;
    --ref-accent-deep: #a16207;
    --ref-accent-rgb: 212, 175, 55;
    --ref-soft: #fffbeb;
    --ref-hero-b: rgba(67, 44, 21, 0.52);
    --ref-image: url("../assets/images/sleep-scenes/scene-travel.webp");
}

.sleep-scene-senior {
    --ref-accent: #d4af37;
    --ref-accent-deep: #8a6515;
    --ref-accent-rgb: 212, 175, 55;
    --ref-soft: #fefce8;
    --ref-hero-b: rgba(50, 64, 45, 0.54);
    --ref-image: url("../assets/images/sleep-scenes/scene-senior.webp");
}

.sleep-scene-reference *,
.sleep-scene-reference *::before,
.sleep-scene-reference *::after {
    box-sizing: border-box;
}

.sleep-scene-reference main {
    overflow: clip;
}

.scene-ref-container {
    width: min(1180px, calc(100% - 80px));
    margin-inline: auto;
}

/* Full-width research hero, following the archived research pages. */
.scene-ref-hero {
    position: relative;
    display: flex;
    min-height: 660px;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 140px 40px 96px !important;
    isolation: isolate;
    color: #ffffff;
    background-color: #0f172a;
    background-image: linear-gradient(135deg, var(--ref-hero-a), var(--ref-hero-b)), var(--ref-image);
    background-position: center;
    background-size: cover;
}

.scene-ref-hero::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    opacity: 0.65;
    background:
        radial-gradient(circle at 18% 48%, rgba(var(--ref-accent-rgb), 0.2), transparent 34%),
        radial-gradient(circle at 82% 24%, rgba(255, 255, 255, 0.08), transparent 30%);
}

.scene-ref-hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    opacity: 0.18;
    background-image:
        linear-gradient(90deg, rgba(255, 255, 255, 0.16) 1px, transparent 1px),
        linear-gradient(0deg, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
    background-size: 64px 64px;
    -webkit-mask-image: linear-gradient(to bottom, #000, transparent 92%);
    mask-image: linear-gradient(to bottom, #000, transparent 92%);
}

.scene-ref-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(5, 12, 24, 0.34), rgba(5, 12, 24, 0.06) 50%, rgba(5, 12, 24, 0.28));
    pointer-events: none;
}

.scene-ref-hero__content {
    position: relative;
    z-index: 2;
    width: min(100%, 1020px);
    margin-inline: auto;
    text-align: center;
    animation: sceneRefRise 780ms ease-out both;
}

@keyframes sceneRefRise {
    from {
        opacity: 0;
        transform: translateY(26px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.scene-ref-hero__tag {
    display: inline-block;
    margin: 0 0 28px;
    padding: 9px 24px;
    border: 1px solid rgba(var(--ref-accent-rgb), 0.5);
    border-radius: 999px;
    background: rgba(var(--ref-accent-rgb), 0.13);
    color: #f8e7c6;
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.25em;
    line-height: 1.5;
    text-transform: uppercase;
    backdrop-filter: blur(10px);
}

.sleep-scene-work .scene-ref-hero__tag {
    color: #bfdbfe;
}

.scene-ref-hero h1 {
    max-width: 1000px;
    margin: 0 auto;
    color: #ffffff;
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: clamp(3.25rem, 5vw, 5.2rem) !important;
    font-weight: 700;
    letter-spacing: -0.04em;
    line-height: 1.08 !important;
    text-wrap: balance;
    text-shadow: 0 5px 30px rgba(0, 0, 0, 0.48);
}

.scene-ref-hero__desc {
    max-width: 800px;
    margin: 30px auto 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: clamp(1rem, 1.4vw, 1.2rem) !important;
    font-weight: 300;
    letter-spacing: 0.025em;
    line-height: 1.9 !important;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.38);
}

.scene-ref-hero__rule {
    display: block;
    width: 86px;
    height: 3px;
    margin: 36px auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--ref-accent), transparent);
}

/* Persistent links between the five independent pages. */
.scene-ref-nav {
    padding: 0 !important;
    border-bottom: 1px solid var(--ref-line);
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.035);
}

.scene-ref-nav__inner {
    display: grid;
    width: min(1180px, calc(100% - 80px));
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 4px;
    margin-inline: auto;
    padding: 14px 0;
}

.scene-ref-nav a {
    position: relative;
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: center;
    padding: 10px 14px;
    border-radius: 6px;
    color: #64748b;
    font-size: 0.9rem;
    font-weight: 600;
    line-height: 1.4;
    text-align: center;
    text-decoration: none;
    transition: color 180ms ease, background-color 180ms ease;
}

.scene-ref-nav a::after {
    content: "";
    position: absolute;
    right: 24%;
    bottom: 4px;
    left: 24%;
    height: 2px;
    border-radius: 999px;
    background: var(--ref-accent);
    opacity: 0;
    transform: scaleX(0.5);
    transition: opacity 180ms ease, transform 180ms ease;
}

.scene-ref-nav a:hover,
.scene-ref-nav a[aria-current="page"] {
    background: var(--ref-soft);
    color: var(--ref-ink);
}

.scene-ref-nav a[aria-current="page"]::after {
    opacity: 1;
    transform: scaleX(1);
}

.scene-ref-nav a:focus-visible {
    outline: 2px solid #ffffff;
    outline-offset: 2px;
    box-shadow: 0 0 0 5px var(--ref-accent-deep);
}

/* Shared research section heading. */
.scene-ref-section-header {
    max-width: 820px;
    margin: 0 auto 58px;
    text-align: center;
}

.scene-ref-section-header__tag {
    display: block;
    width: fit-content;
    max-width: 100%;
    margin: 0 0 12px;
    color: var(--ref-accent-deep);
    font-size: 0.74rem !important;
    font-weight: 700;
    letter-spacing: 0.2em;
    line-height: 1.6 !important;
    text-transform: uppercase;
}

.scene-ref-section-header h2 {
    position: relative;
    display: inline-block;
    margin: 0;
    color: var(--ref-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: clamp(2.25rem, 3.4vw, 3.25rem) !important;
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1.2 !important;
    text-wrap: balance;
}

.scene-ref-section-header h2::after {
    content: "";
    position: absolute;
    bottom: -18px;
    left: 50%;
    width: 70px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--ref-accent), transparent);
    transform: translateX(-50%);
}

.scene-ref-section-header__desc,
.scene-ref-section-header > p:last-child {
    max-width: 720px;
    margin: 34px auto 0;
    color: var(--ref-muted);
    font-size: 1rem !important;
    line-height: 1.8 !important;
    text-wrap: pretty;
}

.sleep-scene-home .scene-ref-section-header__tag {
    margin-right: auto;
    margin-left: auto;
}

/* Research / observation matrix. */
.scene-ref-matrix {
    padding: 94px 0 !important;
    background: linear-gradient(to bottom, #ffffff, #f8fafc 52%, #ffffff);
}

.scene-ref-matrix__grid,
.scene-ref-card-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
}

@media (min-width: 1200px) {
    .sleep-scene-home .scene-ref-matrix__grid,
.sleep-scene-campus .scene-ref-matrix__grid,
.sleep-scene-work .scene-ref-matrix__grid,
.sleep-scene-travel .scene-ref-matrix__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 18px;
}

.sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card,
.sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card,
.sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card,
.sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card {
    grid-column: span 2;
}

.sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(4),
.sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:nth-child(4),
.sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card:nth-child(4),
.sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:nth-child(4) {
    grid-column: 2 / span 2;
}

.sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(5),
.sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:nth-child(5),
.sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card:nth-child(5),
.sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:nth-child(5) {
    grid-column: 4 / span 2;
}
}

.scene-ref-card {
    position: relative;
    min-height: 280px;
    padding: 36px 30px;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-left: 4px solid transparent;
    border-radius: 10px;
    background: #ffffff;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.04);
    transition: transform 260ms ease, box-shadow 260ms ease, border-color 260ms ease;
}

.scene-ref-card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: linear-gradient(180deg, var(--ref-accent), var(--ref-accent-deep));
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 260ms ease;
}

.scene-ref-card:hover {
    border-color: rgba(var(--ref-accent-rgb), 0.34);
    box-shadow: 0 24px 50px rgba(var(--ref-accent-rgb), 0.14);
    transform: translateY(-8px);
}

.scene-ref-card:hover::before {
    transform: scaleY(1);
}

.scene-ref-card__number,
.scene-ref-card > span:first-child {
    display: block;
    margin-bottom: 24px;
    color: rgba(var(--ref-accent-rgb), 0.34);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 2.9rem;
    font-weight: 700;
    line-height: 1;
}

.scene-ref-card__icon {
    display: block;
    margin-bottom: 22px;
    font-size: 2.5rem;
    line-height: 1;
}

.scene-ref-card h3 {
    margin: 0;
    color: var(--ref-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 1.28rem !important;
    font-weight: 700;
    line-height: 1.45;
}

.scene-ref-card p {
    margin: 14px 0 0;
    color: var(--ref-text);
    font-size: 0.93rem !important;
    line-height: 1.75 !important;
}

/* Alternating visual stories, mirroring the archived solution rows. */
.scene-ref-applications {
    padding: 104px 0 !important;
    background: #f4f6f8;
}

.scene-ref-row {
    display: grid;
    min-height: 410px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
    margin-bottom: 58px;
    overflow: hidden;
    border: 1px solid rgba(226, 232, 240, 0.78);
    border-radius: 22px;
    background: #ffffff;
    box-shadow: 0 20px 42px rgba(15, 23, 42, 0.06);
}

.scene-ref-row:last-child {
    margin-bottom: 0;
}

.scene-ref-row--reverse .scene-ref-copy,
.scene-ref-row.reverse .scene-ref-copy {
    order: 2;
}

.scene-ref-row--reverse .scene-ref-visual,
.scene-ref-row.reverse .scene-ref-visual {
    order: 1;
}

.scene-ref-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 58px 52px;
}

.scene-ref-copy__tag {
    align-self: flex-start;
    margin-bottom: 20px;
    padding: 8px 19px;
    border: 1px solid rgba(var(--ref-accent-rgb), 0.4);
    border-radius: 999px;
    background: rgba(var(--ref-accent-rgb), 0.09);
    color: var(--ref-accent-deep);
    font-size: 0.73rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    line-height: 1.5;
    text-transform: uppercase;
}

.scene-ref-copy h3 {
    margin: 0;
    color: var(--ref-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: clamp(1.7rem, 2.4vw, 2.25rem) !important;
    font-weight: 700;
    letter-spacing: -0.025em;
    line-height: 1.32;
}

.scene-ref-copy p {
    margin: 22px 0 0;
    color: var(--ref-text);
    font-size: 1rem !important;
    line-height: 1.85 !important;
}

.scene-ref-copy ul {
    display: grid;
    gap: 10px;
    margin: 22px 0 0;
    padding: 0;
    color: var(--ref-text);
    list-style: none;
}

.scene-ref-copy li {
    position: relative;
    padding-left: 20px;
    font-size: 0.93rem;
    line-height: 1.7;
}

.scene-ref-copy li::before {
    content: "";
    position: absolute;
    top: 0.7em;
    left: 0;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--ref-accent);
}

.scene-ref-visual {
    position: relative;
    min-height: 410px;
    overflow: hidden;
    isolation: isolate;
    background-color: #1e293b;
    background-image: linear-gradient(135deg, rgba(15, 23, 42, 0.16), rgba(15, 23, 42, 0.64)), var(--ref-row-image, var(--ref-image));
    background-position: var(--ref-row-position, center);
    background-size: cover;
}

.scene-ref-visual::before,
.scene-ref-visual::after {
    content: "";
    position: absolute;
    z-index: 1;
    pointer-events: none;
}

.scene-ref-visual::before {
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, 0.34);
    border-radius: 14px;
}

.scene-ref-visual::after {
    inset: 35px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 10px;
}

.scene-ref-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.scene-ref-visual__label,
.scene-ref-visual > span {
    position: absolute;
    z-index: 3;
    right: 38px;
    bottom: 34px;
    left: 38px;
    color: #ffffff;
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 1.65rem;
    font-style: italic;
    font-weight: 700;
    letter-spacing: 0.03em;
    line-height: 1.25;
    text-shadow: 0 5px 22px rgba(0, 0, 0, 0.65);
}

.scene-ref-visual--light,
.scene-ref-visual--schedule,
.scene-ref-visual--room {
    --ref-row-position: center 42%;
}

.scene-ref-visual--sound,
.scene-ref-visual--shift,
.scene-ref-visual--transit {
    --ref-row-position: 28% center;
    filter: saturate(0.92);
}

.scene-ref-visual--route,
.scene-ref-visual--boundary,
.scene-ref-visual--arrival {
    --ref-row-position: 72% center;
}

/* One purpose-built image for each of the first three editorial rows. */
.sleep-scene-home .scene-ref-visual--room {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-home-space.webp");
    --ref-row-position: center 50%;
}

.sleep-scene-home .scene-ref-visual--schedule {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-home-rhythm.webp");
    --ref-row-position: center 46%;
}

.sleep-scene-home .scene-ref-visual--light {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-home-systems.webp");
    --ref-row-position: center 48%;
}

.sleep-scene-campus .scene-ref-visual--light {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-campus-daylight.webp");
    --ref-row-position: center 46%;
}

.sleep-scene-campus .scene-ref-visual--room {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-campus-dormitory.webp");
    --ref-row-position: center 50%;
}

.sleep-scene-campus .scene-ref-visual--schedule {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-campus-shared-rhythm.webp");
    --ref-row-position: center 44%;
}

.sleep-scene-campus .scene-ref-visual--boundary {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-campus-support.webp");
    --ref-row-position: center 48%;
}

.sleep-scene-work .scene-ref-visual--schedule {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-work-schedule.webp");
    --ref-row-position: center 46%;
}

.sleep-scene-work .scene-ref-visual--shift {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-work-shift.webp");
    --ref-row-position: center 50%;
}

.sleep-scene-work .scene-ref-visual--boundary {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-work-boundary.webp");
    --ref-row-position: center 52%;
}

.sleep-scene-travel .scene-ref-visual--room {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-travel-room.webp");
    --ref-row-position: center 50%;
}

.sleep-scene-travel .scene-ref-visual--transit {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-travel-transit.webp");
    --ref-row-position: center 50%;
}

.sleep-scene-travel .scene-ref-visual--arrival {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-travel-arrival.webp");
    --ref-row-position: center 46%;
}

.sleep-scene-senior .scene-ref-visual--schedule {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-senior-day-rhythm.webp");
    --ref-row-position: center 44%;
}

.sleep-scene-senior .scene-ref-visual--route {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-senior-night-route.webp");
    --ref-row-position: center 52%;
}

.sleep-scene-senior .scene-ref-visual--boundary {
    --ref-row-image: url("../assets/images/sleep-scenes/scene-senior-care-handover.webp");
    --ref-row-position: center 46%;
}

/* Final research/observation band. */
.scene-ref-observatory {
    position: relative;
    padding: 92px 0 !important;
    overflow: hidden;
    background: linear-gradient(150deg, #fbfbfa, var(--ref-soft));
}

.scene-ref-observatory::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.32;
    background-image: radial-gradient(rgba(var(--ref-accent-rgb), 0.28) 1px, transparent 1px);
    background-size: 22px 22px;
    -webkit-mask-image: linear-gradient(90deg, #000, transparent 46%);
    mask-image: linear-gradient(90deg, #000, transparent 46%);
}

.scene-ref-observatory .scene-ref-container {
    position: relative;
}

.scene-ref-observation-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}

.scene-ref-observation,
.scene-ref-observation-grid > article {
    min-height: 220px;
    padding: 32px;
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.04);
    transition: transform 220ms ease, box-shadow 220ms ease;
}

.scene-ref-observation:hover,
.scene-ref-observation-grid > article:hover {
    box-shadow: 0 20px 42px rgba(15, 23, 42, 0.08);
    transform: translateY(-6px);
}

.scene-ref-observation__index,
.scene-ref-observation-grid > article > span:first-child {
    display: block;
    margin-bottom: 22px;
    color: var(--ref-accent-deep);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.16em;
}

.scene-ref-observation h3,
.scene-ref-observation-grid > article h3 {
    margin: 0;
    color: var(--ref-ink);
    font-family: "Noto Serif SC", "Noto Serif TC", Georgia, serif;
    font-size: 1.28rem !important;
    font-weight: 700;
    line-height: 1.45;
}

.scene-ref-observation p,
.scene-ref-observation-grid > article p {
    margin: 14px 0 0;
    color: var(--ref-muted);
    font-size: 0.93rem !important;
    line-height: 1.75 !important;
}

.scene-ref-boundary {
    padding: 34px 0 !important;
    border-top: 1px solid var(--ref-line);
    background: #ffffff;
}

.scene-ref-boundary p {
    max-width: 900px;
    margin: 0 auto;
    color: var(--ref-muted);
    font-size: 0.84rem !important;
    line-height: 1.75 !important;
    text-align: center;
}

/*
 * Five scene-specific editorial systems.
 * The shared shell keeps navigation and typography consistent; the content below
 * deliberately changes rhythm, geometry and decoration for each setting.
 */
.sleep-scene-home {
    --ref-ink: #1f2933;
    --ref-text: #56616b;
    --ref-muted: #6e756f;
    --ref-line: #ded6ca;
    --ref-accent: #b07a50;
    --ref-accent-deep: #6f4d35;
    --ref-accent-rgb: 176, 122, 80;
    --ref-soft: #f4f0e9;
}

.sleep-scene-campus {
    --ref-ink: #213b42;
    --ref-text: #53676b;
    --ref-muted: #66787a;
    --ref-line: #d8e1de;
    --ref-accent: #c39a55;
    --ref-accent-deep: #456c6a;
    --ref-accent-rgb: 95, 133, 130;
    --ref-soft: #f5f1e8;
}

.sleep-scene-travel {
    --ref-ink: #162238;
    --ref-text: #536071;
    --ref-muted: #687386;
    --ref-line: #ddd5c7;
    --ref-accent: #b4864f;
    --ref-accent-deep: #79552e;
    --ref-accent-rgb: 180, 134, 79;
    --ref-soft: #f4f1eb;
}

.sleep-scene-senior {
    --ref-ink: #31463a;
    --ref-text: #4f6155;
    --ref-muted: #627067;
    --ref-line: #d7ddd1;
    --ref-accent: #9b7a3f;
    --ref-accent-deep: #596a55;
    --ref-accent-rgb: 113, 128, 107;
    --ref-soft: #f6f2e8;
}

.sleep-scene-reference .scene-ref-visual::after {
    display: none;
}

/* Home: warm residential section lines and room-like frames. */
.sleep-scene-home .scene-ref-matrix {
    background-color: #f8f5f0;
    background-image:
        linear-gradient(rgba(111, 77, 53, 0.045) 1px, transparent 1px),
        linear-gradient(90deg, rgba(111, 77, 53, 0.045) 1px, transparent 1px);
    background-size: 38px 38px;
}

.sleep-scene-home .scene-ref-visual {
    border-radius: 28px 8px 28px 8px;
}

.sleep-scene-home .scene-ref-visual::before {
    inset: 20px;
    border: 1px solid rgba(255, 255, 255, 0.52);
    border-left-width: 4px;
    border-radius: 20px 4px 20px 4px;
}

.sleep-scene-home .scene-ref-observatory {
    background: #fcfaf7;
}

/* Campus: timetable grid and connected campus-route details. */
.sleep-scene-campus .scene-ref-hero::after,
.sleep-scene-campus .scene-ref-applications {
    background-image:
        linear-gradient(rgba(95, 133, 130, 0.075) 1px, transparent 1px),
        linear-gradient(90deg, rgba(95, 133, 130, 0.075) 1px, transparent 1px);
    background-size: 30px 30px;
}

.sleep-scene-campus .scene-ref-hero::after {
    opacity: 0.28;
    -webkit-mask-image: linear-gradient(90deg, #000, transparent 82%);
    mask-image: linear-gradient(90deg, #000, transparent 82%);
}

.sleep-scene-campus .scene-ref-visual::before {
    inset: 0;
    border: 0;
    border-radius: 0;
    opacity: 0.22;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 32px 32px;
}

.sleep-scene-campus .scene-ref-observatory {
    background: #213b42;
}

.sleep-scene-campus .scene-ref-observatory::before {
    opacity: 0.12;
}

.sleep-scene-campus .scene-ref-observatory .scene-ref-section-header h2,
.sleep-scene-campus .scene-ref-observation h3 {
    color: #ffffff;
}

.sleep-scene-campus .scene-ref-observatory .scene-ref-section-header__tag {
    color: #e7c98f;
}

.sleep-scene-campus .scene-ref-observatory .scene-ref-section-header > p:last-child,
.sleep-scene-campus .scene-ref-observation p {
    color: #c7d4d2;
}

.sleep-scene-campus .scene-ref-card::before,
.sleep-scene-travel .scene-ref-card::before {
    display: none;
}

.sleep-scene-campus .scene-ref-card:hover,
.sleep-scene-travel .scene-ref-card:hover {
    transform: none;
}

/* Work: operational grid, cool contrast and ledger dividers. */
.sleep-scene-work .scene-ref-hero::after,
.sleep-scene-work .scene-ref-matrix {
    background-image:
        linear-gradient(rgba(79, 118, 163, 0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(79, 118, 163, 0.07) 1px, transparent 1px);
    background-size: 24px 24px;
}

.sleep-scene-work .scene-ref-matrix {
    background-color: #edf3f8;
}

.sleep-scene-work .scene-ref-visual {
    border-radius: 4px;
}

.sleep-scene-work .scene-ref-visual::before {
    inset: 0;
    border: 0;
    border-radius: 0;
    opacity: 0.18;
    background: repeating-linear-gradient(90deg, transparent 0 46px, rgba(255, 255, 255, 0.42) 46px 47px);
}

.sleep-scene-work .scene-ref-observatory {
    background: #10213b;
}

.sleep-scene-work .scene-ref-observatory::before {
    opacity: 0.16;
    background-size: 28px 28px;
}

.sleep-scene-work .scene-ref-observatory .scene-ref-section-header h2,
.sleep-scene-work .scene-ref-observation h3 {
    color: #ffffff;
}

.sleep-scene-work .scene-ref-observatory .scene-ref-section-header__tag {
    color: #93c5fd;
}

.sleep-scene-work .scene-ref-observatory .scene-ref-section-header > p:last-child,
.sleep-scene-work .scene-ref-observation p {
    color: #bdc9da;
}

/* Travel: route line, offset paper cards and restrained bronze details. */
.sleep-scene-travel main,
.sleep-scene-senior main {
    display: flex;
    flex-direction: column;
}

.sleep-scene-travel .scene-ref-hero { order: 1; }
.sleep-scene-travel .scene-ref-nav { order: 2; }
.sleep-scene-travel .scene-ref-applications { order: 3; }
.sleep-scene-travel .scene-ref-matrix { order: 4; }
.sleep-scene-travel .scene-ref-observatory { order: 5; }
.sleep-scene-travel .scene-ref-boundary { order: 6; }

.sleep-scene-travel .scene-ref-applications {
    background-color: #f4f1eb;
    background-image: linear-gradient(90deg, transparent 49.9%, rgba(180, 134, 79, 0.08) 50%, transparent 50.1%);
}

.sleep-scene-travel .scene-ref-visual {
    border-radius: 2px;
}

.sleep-scene-travel .scene-ref-visual::before {
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, 0.42);
    border-radius: 1px;
}

.sleep-scene-travel .scene-ref-observation {
    border-style: dashed;
    border-radius: 2px;
    background: #fffdf9;
}

/* Senior: calm continuous path, larger reading measure and lower visual noise. */
.sleep-scene-senior .scene-ref-hero { order: 1; }
.sleep-scene-senior .scene-ref-nav { order: 2; }
.sleep-scene-senior .scene-ref-applications { order: 3; }
.sleep-scene-senior .scene-ref-matrix { order: 4; }
.sleep-scene-senior .scene-ref-observatory { order: 5; }

.sleep-scene-senior .scene-ref-hero::after {
    opacity: 0.2;
    background-image: radial-gradient(circle at 76% 45%, transparent 0 110px, rgba(255, 255, 255, 0.28) 111px 112px, transparent 113px 168px, rgba(255, 255, 255, 0.18) 169px 170px, transparent 171px);
    background-size: auto;
    -webkit-mask-image: none;
    mask-image: none;
}

.sleep-scene-senior .scene-ref-applications,
.sleep-scene-senior .scene-ref-matrix {
    background: #f6f2e8;
}

.sleep-scene-senior .scene-ref-visual {
    border-radius: 28px;
}

.sleep-scene-senior .scene-ref-visual::before {
    inset: 18px;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 20px;
}

.sleep-scene-senior .scene-ref-card,
.sleep-scene-senior .scene-ref-observation {
    transition: none;
}

.sleep-scene-senior .scene-ref-card:hover,
.sleep-scene-senior .scene-ref-observation:hover {
    box-shadow: none;
    transform: none;
}

@media (min-width: 1200px) {
    /* All non-home heroes begin from the reading edge, not the center. */
    .sleep-scene-campus .scene-ref-hero__content,
    .sleep-scene-work .scene-ref-hero__content,
    .sleep-scene-travel .scene-ref-hero__content,
    .sleep-scene-senior .scene-ref-hero__content {
        width: min(1180px, calc(100% - 80px));
        margin-inline: auto;
        text-align: left;
    }

    .sleep-scene-campus .scene-ref-hero h1,
    .sleep-scene-work .scene-ref-hero h1,
    .sleep-scene-travel .scene-ref-hero h1,
    .sleep-scene-senior .scene-ref-hero h1 {
        max-width: 860px;
        margin-inline: 0;
    }

    .sleep-scene-campus .scene-ref-hero__desc,
    .sleep-scene-work .scene-ref-hero__desc,
    .sleep-scene-travel .scene-ref-hero__desc,
    .sleep-scene-senior .scene-ref-hero__desc {
        max-width: 720px;
        margin-inline: 0;
    }

    .sleep-scene-campus .scene-ref-hero__rule,
    .sleep-scene-work .scene-ref-hero__rule,
    .sleep-scene-travel .scene-ref-hero__rule,
    .sleep-scene-senior .scene-ref-hero__rule {
        margin-left: 0;
    }

    .sleep-scene-campus .scene-ref-hero__tag,
    .sleep-scene-work .scene-ref-hero__tag,
    .sleep-scene-travel .scene-ref-hero__tag {
        border-radius: 2px;
    }

    .sleep-scene-campus .scene-ref-section-header,
    .sleep-scene-work .scene-ref-section-header,
    .sleep-scene-travel .scene-ref-section-header,
    .sleep-scene-senior .scene-ref-section-header {
        max-width: 780px;
        margin-left: 0;
        text-align: left;
    }

    .sleep-scene-campus .scene-ref-section-header h2::after,
    .sleep-scene-work .scene-ref-section-header h2::after,
    .sleep-scene-travel .scene-ref-section-header h2::after,
    .sleep-scene-senior .scene-ref-section-header h2::after {
        left: 0;
        transform: none;
    }

    .sleep-scene-campus .scene-ref-section-header__desc,
    .sleep-scene-campus .scene-ref-section-header > p:last-child,
    .sleep-scene-work .scene-ref-section-header__desc,
    .sleep-scene-work .scene-ref-section-header > p:last-child,
    .sleep-scene-travel .scene-ref-section-header__desc,
    .sleep-scene-travel .scene-ref-section-header > p:last-child,
    .sleep-scene-senior .scene-ref-section-header__desc,
    .sleep-scene-senior .scene-ref-section-header > p:last-child {
        margin-left: 0;
    }

    .sleep-scene-home .scene-ref-section-header__desc,
    .sleep-scene-home .scene-ref-section-header > p:last-child {
        max-width: 800px;
    }

    /* Home: a residential mosaic and magazine-like application spread. */
    .sleep-scene-home .scene-ref-matrix__grid {
        grid-template-columns: repeat(12, minmax(0, 1fr));
        grid-template-rows: repeat(2, minmax(190px, auto));
        gap: 18px;
    }

    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card {
        min-height: 0;
        grid-column: auto;
        grid-row: auto;
        border: 1px solid #ded6ca;
        border-radius: 12px;
        box-shadow: 0 14px 34px rgba(84, 64, 48, 0.055);
    }

    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(1) { grid-column: 1 / span 5; grid-row: 1 / span 2; }
    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(2) { grid-column: 6 / span 4; }
    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(3) { grid-column: 10 / span 3; }
    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(4) { grid-column: 6 / span 3; }
    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:nth-child(5) { grid-column: 9 / span 4; }

    .sleep-scene-home .scene-ref-applications > .scene-ref-container {
        display: grid;
        grid-template-columns: repeat(12, minmax(0, 1fr));
        gap: 30px;
    }

    .sleep-scene-home .scene-ref-applications .scene-ref-section-header {
        grid-column: 1 / -1;
    }

    .sleep-scene-home .scene-ref-applications .scene-ref-row {
        margin-bottom: 0;
    }

    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(1) {
        grid-column: 1 / -1;
        margin-right: 7%;
        grid-template-columns: 5fr 7fr;
    }

    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(2),
    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(3) {
        display: flex;
        min-height: 0;
        flex-direction: column;
    }

    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(2) { grid-column: 1 / span 6; }
    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(3) { grid-column: 7 / span 6; transform: translateY(54px); }

    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(n+2) .scene-ref-visual { order: 1; min-height: 290px; }
    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(n+2) .scene-ref-copy { order: 2; min-height: 300px; }

    .sleep-scene-home .scene-ref-observation-grid {
        gap: 0;
        border-block: 1px solid #ded6ca;
    }

    .sleep-scene-home .scene-ref-observation {
        min-height: 0;
        border: 0;
        border-right: 1px solid #ded6ca;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-home .scene-ref-observation:last-child { border-right: 0; }

    /* Campus: five parallel information-board panels and four place-based panels. */
    .sleep-scene-campus .scene-ref-matrix__grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 16px;
    }

    .sleep-scene-campus .scene-ref-matrix__grid::before {
        display: none;
    }

    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card {
        min-height: 0;
        padding: 30px 24px 32px;
        grid-column: auto;
        border: 1px solid #d8e1de;
        border-top: 4px solid #6f928f;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.9);
        box-shadow: 0 12px 28px rgba(33, 59, 66, 0.055);
    }

    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:nth-child(4),
    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:nth-child(5),
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:nth-child(4),
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:nth-child(5) {
        grid-column: auto;
    }

    .sleep-scene-campus .scene-ref-card__number {
        position: static;
        display: inline-block;
        width: auto;
        height: auto;
        margin: 0 0 24px;
        padding: 5px 10px;
        border: 0;
        border-radius: 2px;
        background: #e8efed;
        color: #456c6a;
        font-family: inherit;
        font-size: 0.7rem;
        letter-spacing: 0.12em;
        transform: none;
    }

    .sleep-scene-campus .scene-ref-applications > .scene-ref-container {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 30px;
    }

    .sleep-scene-campus .scene-ref-applications .scene-ref-section-header { grid-column: 1 / -1; }

    .sleep-scene-campus .scene-ref-applications .scene-ref-row {
        display: flex;
        min-height: 0;
        flex-direction: column;
        margin: 0;
        border: 0;
        border-top: 4px solid var(--ref-accent);
        border-radius: 0;
        box-shadow: 0 16px 36px rgba(33, 59, 66, 0.08);
    }

    .sleep-scene-campus .scene-ref-applications .scene-ref-copy { min-height: 310px; padding: 42px; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-visual { min-height: 285px; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(1) .scene-ref-visual,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(4) .scene-ref-visual { order: 1; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(1) .scene-ref-copy,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(4) .scene-ref-copy { order: 2; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(2) .scene-ref-copy,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(3) .scene-ref-copy { order: 1; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(2) .scene-ref-visual,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row:nth-of-type(3) .scene-ref-visual { order: 2; }

    .sleep-scene-campus .scene-ref-observation-grid,
    .sleep-scene-work .scene-ref-observation-grid {
        gap: 0;
    }

    .sleep-scene-campus .scene-ref-observation,
    .sleep-scene-work .scene-ref-observation {
        min-height: 0;
        border: 0;
        border-right: 1px solid rgba(255, 255, 255, 0.17);
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-campus .scene-ref-observation:last-child,
    .sleep-scene-work .scene-ref-observation:last-child { border-right: 0; }

    /* Work: a vertical research ledger beside three compact operational scenes. */
    .sleep-scene-work .scene-ref-matrix__grid {
        display: block;
        border-top: 1px solid #bbc9d6;
    }

    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card {
        display: grid;
        min-height: 0;
        grid-template-columns: 86px minmax(230px, 0.72fr) 1.28fr;
        align-items: start;
        padding: 31px 0;
        border: 0;
        border-bottom: 1px solid #bbc9d6;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-work .scene-ref-card__number,
    .sleep-scene-work .scene-ref-card h3,
    .sleep-scene-work .scene-ref-card p { margin: 0; }

    .sleep-scene-work .scene-ref-card__number { font-size: 1rem; color: #2563eb; }
    .sleep-scene-work .scene-ref-card p { padding-left: 34px; border-left: 1px solid #c7d3df; }

    .sleep-scene-work .scene-ref-applications > .scene-ref-container {
        display: grid;
        grid-template-columns: repeat(12, minmax(0, 1fr));
        gap: 26px;
        align-items: start;
    }

    .sleep-scene-work .scene-ref-applications .scene-ref-section-header {
        position: sticky;
        top: 118px;
        grid-column: 1 / span 4;
        grid-row: 1 / span 3;
        margin-bottom: 0;
        padding-right: 28px;
    }

    .sleep-scene-work .scene-ref-applications .scene-ref-row {
        min-height: 300px;
        grid-column: 5 / -1;
        grid-template-columns: 46% 54%;
        margin: 0;
        border-radius: 4px;
        box-shadow: 0 16px 34px rgba(16, 33, 59, 0.08);
    }

    .sleep-scene-work .scene-ref-applications .scene-ref-copy { order: 1; padding: 38px; }
    .sleep-scene-work .scene-ref-applications .scene-ref-visual { order: 2; min-height: 300px; }

    /* Travel: move through transit, arrival and room as a three-stop route. */
    .sleep-scene-travel .scene-ref-applications > .scene-ref-container {
        display: grid;
        grid-template-columns: repeat(3, minmax(0, 1fr));
        gap: 24px;
        counter-reset: travel-stop;
    }

    .sleep-scene-travel .scene-ref-applications .scene-ref-section-header { grid-column: 1 / -1; order: 0; }

    .sleep-scene-travel .scene-ref-applications .scene-ref-row {
        position: relative;
        display: flex;
        min-height: 0;
        flex-direction: column;
        margin: 0;
        overflow: visible;
        border: 0;
        border-radius: 0;
        box-shadow: 0 18px 40px rgba(22, 34, 56, 0.08);
        counter-increment: travel-stop;
    }

    .sleep-scene-travel .scene-ref-applications .scene-ref-row::before {
        content: "0" counter(travel-stop);
        position: absolute;
        z-index: 5;
        top: 18px;
        left: 18px;
        display: grid;
        width: 44px;
        height: 44px;
        place-items: center;
        border: 1px solid rgba(255, 255, 255, 0.66);
        border-radius: 50%;
        background: rgba(22, 34, 56, 0.78);
        color: #ffffff;
        font-size: 0.75rem;
        letter-spacing: 0.08em;
        backdrop-filter: blur(8px);
    }

    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(1) { order: 3; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(2) { order: 1; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(3) { order: 2; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(2)::before { content: "01"; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(3)::before { content: "02"; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-row:nth-of-type(1)::before { content: "03"; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-visual { order: 1; min-height: 275px; }
    .sleep-scene-travel .scene-ref-applications .scene-ref-copy { order: 2; min-height: 330px; padding: 38px 32px; }

    .sleep-scene-travel .scene-ref-matrix__grid {
        grid-template-columns: repeat(5, minmax(0, 1fr));
        gap: 0;
        border-block: 1px solid #d7c9b5;
    }

    .sleep-scene-travel .scene-ref-matrix__grid::before {
        display: none;
    }

    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card {
        min-height: 0;
        padding: 30px 26px 34px;
        grid-column: auto;
        border: 0;
        border-right: 1px dashed #d7c9b5;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:last-child {
        border-right: 0;
    }

    .sleep-scene-travel .scene-ref-card__number {
        position: static;
        display: block;
        width: auto;
        height: auto;
        margin: 0 0 22px;
        padding: 0;
        border: 0;
        border-radius: 0;
        background: transparent;
        color: #79552e;
        font-family: inherit;
        font-size: 0.74rem;
        letter-spacing: 0.14em;
        transform: none;
    }

    .sleep-scene-travel .scene-ref-observation-grid { align-items: start; }
    .sleep-scene-travel .scene-ref-observation:nth-child(2) { transform: translateY(18px); }
    .sleep-scene-travel .scene-ref-observation:nth-child(3) { transform: translateY(36px); }

    /* Senior: a stable continuous ribbon, then one large and two supporting cards. */
    .sleep-scene-senior .scene-ref-applications__list {
        position: relative;
        padding-left: 54px;
        counter-reset: senior-path;
    }

    .sleep-scene-senior .scene-ref-applications__list::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: 18px;
        width: 1px;
        background: #b8c0ad;
    }

    .sleep-scene-senior .scene-ref-applications .scene-ref-row {
        position: relative;
        min-height: 390px;
        grid-template-columns: 58% 42%;
        margin-bottom: 50px;
        overflow: visible;
        border: 0;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
        counter-increment: senior-path;
    }

    .sleep-scene-senior .scene-ref-applications .scene-ref-row::before {
        content: "0" counter(senior-path);
        position: absolute;
        z-index: 4;
        top: 44px;
        left: -54px;
        display: grid;
        width: 36px;
        height: 36px;
        place-items: center;
        border: 1px solid #8d9a83;
        border-radius: 50%;
        background: #f6f2e8;
        color: #596a55;
        font-size: 0.72rem;
    }

    .sleep-scene-senior .scene-ref-applications .scene-ref-copy { order: 1; padding: 42px 52px 42px 0; }
    .sleep-scene-senior .scene-ref-applications .scene-ref-visual { order: 2; min-height: 390px; }

    .sleep-scene-senior .scene-ref-matrix__grid {
        grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
        grid-template-rows: repeat(2, auto);
        gap: 22px;
    }

    .sleep-scene-senior .scene-ref-matrix__grid > .scene-ref-card {
        min-height: 0;
        padding: 38px;
        border: 1px solid #d1d8ca;
        border-radius: 14px;
        background: #fffdf8;
        box-shadow: none;
    }

    .sleep-scene-senior .scene-ref-matrix__grid > .scene-ref-card:first-child { grid-row: 1 / span 2; }
    .sleep-scene-senior .scene-ref-card p { font-size: 1rem !important; }
    .sleep-scene-senior .scene-ref-card p + p { padding-top: 18px; border-top: 1px solid #dbe0d4; }

    .sleep-scene-senior .scene-ref-observation-grid {
        grid-template-columns: 1fr;
        gap: 0;
        border-top: 1px solid #d1d8ca;
    }

    .sleep-scene-senior .scene-ref-observation {
        display: grid;
        min-height: 0;
        grid-template-columns: 72px minmax(230px, 0.55fr) 1fr;
        align-items: start;
        padding: 30px 0;
        border: 0;
        border-bottom: 1px solid #d1d8ca;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-senior .scene-ref-observation > span,
    .sleep-scene-senior .scene-ref-observation h3,
    .sleep-scene-senior .scene-ref-observation p { margin: 0; }
    .sleep-scene-senior .scene-ref-observation p { padding-left: 34px; border-left: 1px solid #d1d8ca; }
}

@media (min-width: 768px) and (max-width: 1199.98px) {
    .sleep-scene-work .scene-ref-matrix__grid {
        display: block;
        border-top: 1px solid #bbc9d6;
    }

    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card {
        display: grid;
        min-height: 0;
        grid-template-columns: 70px minmax(200px, 0.7fr) 1.3fr;
        padding: 26px 0;
        border: 0;
        border-bottom: 1px solid #bbc9d6;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-work .scene-ref-card__number,
    .sleep-scene-work .scene-ref-card h3,
    .sleep-scene-work .scene-ref-card p { margin: 0; }
    .sleep-scene-work .scene-ref-card p { padding-left: 24px; border-left: 1px solid #c7d3df; }

    .sleep-scene-campus .scene-ref-applications > .scene-ref-container {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 24px;
    }

    .sleep-scene-campus .scene-ref-applications .scene-ref-section-header { grid-column: 1 / -1; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-row { display: flex; min-height: 0; flex-direction: column; margin: 0; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-visual { order: 1; min-height: 250px; }
    .sleep-scene-campus .scene-ref-applications .scene-ref-copy { order: 2; min-height: 320px; }

    .sleep-scene-senior .scene-ref-matrix__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767.98px) {
    .sleep-scene-campus .scene-ref-section-header,
    .sleep-scene-work .scene-ref-section-header,
    .sleep-scene-travel .scene-ref-section-header,
    .sleep-scene-senior .scene-ref-section-header {
        margin-left: 0;
        text-align: left;
    }

    .sleep-scene-campus .scene-ref-section-header h2::after,
    .sleep-scene-work .scene-ref-section-header h2::after,
    .sleep-scene-travel .scene-ref-section-header h2::after,
    .sleep-scene-senior .scene-ref-section-header h2::after {
        left: 0;
        transform: none;
    }

    .sleep-scene-campus .scene-ref-section-header__desc,
    .sleep-scene-campus .scene-ref-section-header > p:last-child,
    .sleep-scene-work .scene-ref-section-header__desc,
    .sleep-scene-work .scene-ref-section-header > p:last-child,
    .sleep-scene-travel .scene-ref-section-header__desc,
    .sleep-scene-travel .scene-ref-section-header > p:last-child,
    .sleep-scene-senior .scene-ref-section-header__desc,
    .sleep-scene-senior .scene-ref-section-header > p:last-child {
        margin-left: 0;
    }

    .sleep-scene-home .scene-ref-matrix__grid,
    .sleep-scene-campus .scene-ref-matrix__grid,
    .sleep-scene-work .scene-ref-matrix__grid,
    .sleep-scene-travel .scene-ref-matrix__grid,
    .sleep-scene-senior .scene-ref-matrix__grid {
        grid-template-columns: 1fr;
        grid-template-rows: none;
    }

    .sleep-scene-campus .scene-ref-matrix__grid,
    .sleep-scene-travel .scene-ref-matrix__grid {
        position: relative;
        padding-left: 30px;
    }

    .sleep-scene-campus .scene-ref-matrix__grid::before,
    .sleep-scene-travel .scene-ref-matrix__grid::before {
        content: "";
        position: absolute;
        top: 12px;
        bottom: 12px;
        left: 10px;
        width: 1px;
        background: var(--ref-accent);
    }

    .sleep-scene-campus .scene-ref-card,
    .sleep-scene-travel .scene-ref-card,
    .sleep-scene-work .scene-ref-card {
        min-height: 0;
        border-radius: 0;
        box-shadow: none;
    }

    .sleep-scene-campus .scene-ref-card,
    .sleep-scene-travel .scene-ref-card {
        padding: 22px 18px;
        border: 0;
        border-bottom: 1px solid var(--ref-line);
        background: transparent;
    }

    .sleep-scene-campus .scene-ref-card__number,
    .sleep-scene-travel .scene-ref-card__number {
        position: absolute;
        top: 24px;
        left: -27px;
        display: grid;
        width: 28px;
        height: 28px;
        place-items: center;
        margin: 0;
        border: 1px solid var(--ref-accent);
        border-radius: 50%;
        background: #ffffff;
        color: var(--ref-accent-deep);
        font-size: 0.62rem;
    }

    .sleep-scene-work .scene-ref-matrix__grid {
        display: block;
        border-top: 1px solid #bbc9d6;
    }

    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card {
        display: grid;
        grid-template-columns: 50px 1fr;
        padding: 24px 0;
        border: 0;
        border-bottom: 1px solid #bbc9d6;
        background: transparent;
    }

    .sleep-scene-work .scene-ref-card__number,
    .sleep-scene-work .scene-ref-card h3,
    .sleep-scene-work .scene-ref-card p { margin: 0; }
    .sleep-scene-work .scene-ref-card p { grid-column: 2; margin-top: 12px; }

    .sleep-scene-campus .scene-ref-applications .scene-ref-row,
    .sleep-scene-travel .scene-ref-applications .scene-ref-row {
        border-radius: 0;
    }

    .sleep-scene-campus .scene-ref-applications .scene-ref-visual,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row--reverse .scene-ref-visual,
    .sleep-scene-travel .scene-ref-applications .scene-ref-visual,
    .sleep-scene-travel .scene-ref-applications .scene-ref-row--reverse .scene-ref-visual {
        order: 1;
    }

    .sleep-scene-campus .scene-ref-applications .scene-ref-copy,
    .sleep-scene-campus .scene-ref-applications .scene-ref-row--reverse .scene-ref-copy,
    .sleep-scene-travel .scene-ref-applications .scene-ref-copy,
    .sleep-scene-travel .scene-ref-applications .scene-ref-row--reverse .scene-ref-copy {
        order: 2;
    }

    .sleep-scene-senior .scene-ref-applications__list {
        position: relative;
        padding-left: 28px;
        counter-reset: senior-path;
    }

    .sleep-scene-senior .scene-ref-applications__list::before {
        content: "";
        position: absolute;
        top: 0;
        bottom: 0;
        left: 8px;
        width: 1px;
        background: #b8c0ad;
    }

    .sleep-scene-senior .scene-ref-row {
        position: relative;
        overflow: visible;
        border: 0;
        background: transparent;
        box-shadow: none;
        counter-increment: senior-path;
    }

    .sleep-scene-senior .scene-ref-row::before {
        content: "0" counter(senior-path);
        position: absolute;
        z-index: 4;
        top: 28px;
        left: -38px;
        display: grid;
        width: 28px;
        height: 28px;
        place-items: center;
        border: 1px solid #8d9a83;
        border-radius: 50%;
        background: #f6f2e8;
        color: #596a55;
        font-size: 0.62rem;
    }

    .sleep-scene-senior .scene-ref-copy p,
    .sleep-scene-senior .scene-ref-card p,
    .sleep-scene-senior .scene-ref-observation p {
        font-size: 1rem !important;
        line-height: 1.8 !important;
    }

    .sleep-scene-senior .scene-ref-observation-grid {
        gap: 0;
        border-top: 1px solid #d1d8ca;
    }

    .sleep-scene-senior .scene-ref-observation {
        border: 0;
        border-bottom: 1px solid #d1d8ca;
        border-radius: 0;
        background: transparent;
        box-shadow: none;
    }

    .sleep-scene-travel .scene-ref-observation:nth-child(2),
    .sleep-scene-travel .scene-ref-observation:nth-child(3),
    .sleep-scene-home .scene-ref-applications .scene-ref-row:nth-of-type(3) {
        transform: none;
    }

    .sleep-scene-campus .scene-ref-matrix__grid,
    .sleep-scene-travel .scene-ref-matrix__grid {
        padding-left: 0;
    }

    .sleep-scene-campus .scene-ref-matrix__grid::before,
    .sleep-scene-travel .scene-ref-matrix__grid::before {
        display: none;
    }

    .sleep-scene-campus .scene-ref-card {
        padding: 24px 22px;
        border: 1px solid #d8e1de;
        border-top: 3px solid #6f928f;
        border-radius: 8px;
        background: rgba(255, 255, 255, 0.9);
    }

    .sleep-scene-travel .scene-ref-card {
        padding: 24px 4px 26px 20px;
        border: 0;
        border-bottom: 1px solid #d7c9b5;
        border-left: 3px solid #b4864f;
        background: transparent;
    }

    .sleep-scene-campus .scene-ref-card__number,
    .sleep-scene-travel .scene-ref-card__number {
        position: static;
        display: inline-block;
        width: auto;
        height: auto;
        margin: 0 0 18px;
        padding: 4px 8px;
        border: 0;
        border-radius: 2px;
        background: #e8efed;
        color: var(--ref-accent-deep);
        font-family: inherit;
        font-size: 0.68rem;
        letter-spacing: 0.12em;
    }

    .sleep-scene-travel .scene-ref-card__number {
        background: #f0e8dc;
    }
}

/* Keep the full desktop navigation readable now that these pages no longer use whole-page zoom. */
@media (min-width: 1200px) and (max-width: 2047.98px) {
    .sleep-scene-reference .site-header,
    .sleep-scene-reference .site-header.scrolled {
        padding: 1.25rem 0;
    }

    .sleep-scene-reference .nav-container {
        padding-inline: 28px;
    }

    .sleep-scene-reference .logo {
        margin-right: 22px;
    }

    .sleep-scene-reference .logo a {
        font-size: 2rem;
    }

    .sleep-scene-reference .main-nav ul {
        gap: clamp(12px, 1.45vw, 25px);
    }

    .sleep-scene-reference .main-nav a {
        font-size: 0.9rem;
        letter-spacing: 0.4px;
    }

    .sleep-scene-reference .main-nav > ul > li:last-child > ul {
        right: 0;
        left: auto;
        transform: none;
    }
}

@media (min-width: 1200px) and (max-width: 1299.98px) {
    .sleep-scene-reference .nav-container {
        padding-inline: 12px;
    }

    .sleep-scene-reference .logo {
        margin-right: 10px;
    }

    .sleep-scene-reference .logo a {
        font-size: 1.72rem;
    }

    .sleep-scene-reference .main-nav ul {
        gap: 8px;
    }

    .sleep-scene-reference .main-nav a {
        font-size: 0.84rem;
        letter-spacing: 0;
    }
}

@media (max-width: 1199.98px) {
    .scene-ref-container,
    .scene-ref-nav__inner {
        width: min(100% - 56px, 1040px);
    }

    .scene-ref-hero {
        min-height: 620px;
        padding: 124px 34px 84px !important;
    }

    .scene-ref-hero h1 {
        font-size: clamp(2.8rem, 7vw, 4.4rem) !important;
    }

    .scene-ref-matrix__grid,
    .scene-ref-card-grid,
    .sleep-scene-home .scene-ref-matrix__grid,
    .sleep-scene-campus .scene-ref-matrix__grid,
    .sleep-scene-work .scene-ref-matrix__grid,
    .sleep-scene-travel .scene-ref-matrix__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card {
        grid-column: auto;
    }

    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:last-child {
        grid-column: 1 / -1;
    }

    .scene-ref-matrix__grid > :last-child:nth-child(odd),
    .scene-ref-card-grid > :last-child:nth-child(odd) {
        grid-column: 1 / -1;
    }

    .scene-ref-copy {
        padding: 46px 38px;
    }

    .scene-ref-row,
    .scene-ref-visual {
        min-height: 360px;
    }
}

@media (max-width: 767.98px) {
    .scene-ref-container {
        width: calc(100% - 36px);
    }

    .scene-ref-hero {
        min-height: 500px;
        margin-top: -56px;
        padding: 136px 20px 72px !important;
        background-position: center;
    }

    .scene-ref-hero::after {
        background-size: 42px 42px;
    }

    .scene-ref-hero__tag {
        max-width: 100%;
        margin-bottom: 22px;
        padding: 8px 16px;
        font-size: 0.68rem;
        letter-spacing: 0.15em;
        white-space: normal;
    }

    .scene-ref-hero h1 {
        font-size: clamp(2.1rem, 10vw, 3rem) !important;
        line-height: 1.18 !important;
    }

    .scene-ref-hero__desc {
        margin-top: 22px;
        font-size: 0.95rem !important;
        line-height: 1.75 !important;
    }

    .scene-ref-nav {
        overflow: hidden;
    }

    .scene-ref-nav__inner {
        display: flex;
        width: 100%;
        gap: 7px;
        padding: 12px 18px 14px;
        overflow-x: auto;
        scroll-snap-type: x proximity;
        scrollbar-width: thin;
    }

    .scene-ref-nav a {
        min-width: max-content;
        min-height: 44px;
        padding: 9px 15px;
        scroll-snap-align: center;
    }

    .scene-ref-matrix,
    .scene-ref-applications,
    .scene-ref-observatory {
        padding: 68px 0 !important;
    }

    .scene-ref-section-header {
        margin-bottom: 42px;
    }

    .scene-ref-section-header h2 {
        font-size: clamp(1.9rem, 8.6vw, 2.55rem) !important;
    }

    .scene-ref-section-header__desc,
    .scene-ref-section-header > p:last-child {
        font-size: 0.95rem !important;
    }

    .scene-ref-matrix__grid,
    .scene-ref-card-grid,
    .sleep-scene-home .scene-ref-matrix__grid,
    .sleep-scene-campus .scene-ref-matrix__grid,
    .sleep-scene-work .scene-ref-matrix__grid,
    .sleep-scene-travel .scene-ref-matrix__grid,
    .scene-ref-observation-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }

    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card,
    .sleep-scene-home .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-campus .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-work .scene-ref-matrix__grid > .scene-ref-card:last-child,
    .sleep-scene-travel .scene-ref-matrix__grid > .scene-ref-card:last-child {
        grid-column: auto;
    }

    .scene-ref-matrix__grid > :last-child:nth-child(odd),
    .scene-ref-card-grid > :last-child:nth-child(odd) {
        grid-column: auto;
    }

    .scene-ref-card {
        min-height: 0;
        padding: 28px 25px;
    }

    .scene-ref-card__number,
    .scene-ref-card > span:first-child {
        margin-bottom: 18px;
        font-size: 2.25rem;
    }

    .scene-ref-row,
    .scene-ref-row.reverse,
    .scene-ref-row--reverse {
        display: flex;
        min-height: 0;
        flex-direction: column;
        gap: 0;
        margin-bottom: 36px;
        border-radius: 16px;
    }

    .scene-ref-row .scene-ref-copy,
    .scene-ref-row.reverse .scene-ref-copy,
    .scene-ref-row--reverse .scene-ref-copy {
        order: 1;
    }

    .scene-ref-row .scene-ref-visual,
    .scene-ref-row.reverse .scene-ref-visual,
    .scene-ref-row--reverse .scene-ref-visual {
        order: 2;
    }

    .scene-ref-copy {
        padding: 32px 25px;
    }

    .scene-ref-copy h3 {
        font-size: 1.55rem !important;
    }

    .scene-ref-copy p {
        font-size: 0.95rem !important;
        line-height: 1.72 !important;
    }

    .scene-ref-visual {
        min-height: 230px;
    }

    .scene-ref-visual::before {
        inset: 12px;
    }

    .scene-ref-visual::after {
        inset: 23px;
    }

    .scene-ref-visual__label,
    .scene-ref-visual > span {
        right: 24px;
        bottom: 22px;
        left: 24px;
        font-size: 1.25rem;
    }

    .scene-ref-observation,
    .scene-ref-observation-grid > article {
        min-height: 0;
        padding: 26px 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .scene-ref-hero__content {
        animation: none;
    }

    .scene-ref-card,
    .scene-ref-observation,
    .scene-ref-observation-grid > article {
        transition: none;
    }
}