:root {
    --program-midnight: #0f1725;
    --program-deep: #121d2d;
    --program-slate: #1b283b;
    --program-ink: #182033;
    --program-cream: #f4ead6;
    --program-paper: #fffaf0;
    --program-amber: #c9852a;
    --program-amber-soft: #e5b565;
    --program-line: rgba(244, 234, 214, 0.14);
    --program-muted: rgba(244, 234, 214, 0.67);
}

html {
    scroll-behavior: smooth;
}

body.sleep-program-page {
    margin: 0;
    overflow-x: hidden;
    background: var(--program-midnight);
    color: var(--program-cream);
    font-family: "Manrope", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.sleep-program-page.zh {
    font-family: "PingFang TC", "Noto Sans TC", "Microsoft JhengHei", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.sleep-program-page *,
.sleep-program-page *::before,
.sleep-program-page *::after {
    box-sizing: border-box;
}

.sleep-program-page a {
    color: inherit;
}

.program-shell {
    width: min(100%, 1240px);
    margin-inline: auto;
    padding-inline: clamp(1.25rem, 4vw, 4rem);
}

.program-band {
    position: relative;
    padding-block: clamp(5rem, 9vw, 8rem);
}

.program-band + .program-band {
    border-top: 1px solid var(--program-line);
}

.program-kicker {
    display: block;
    margin-bottom: 1.25rem;
    color: var(--program-amber-soft);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
}

.program-hero {
    min-height: min(900px, 100svh);
    display: grid;
    align-items: end;
    padding-top: clamp(9.5rem, 15vw, 13rem);
    overflow: hidden;
    background:
        radial-gradient(circle at 76% 24%, rgba(201, 133, 42, 0.24), transparent 0 23%),
        linear-gradient(145deg, #0c1421 0%, #142135 57%, #0d1623 100%);
}

.program-hero::before {
    content: "21";
    position: absolute;
    right: clamp(-2rem, 4vw, 4rem);
    top: clamp(7.5rem, 12vw, 10rem);
    color: rgba(244, 234, 214, 0.035);
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(18rem, 42vw, 42rem);
    font-weight: 500;
    line-height: 0.72;
    letter-spacing: -0.08em;
    pointer-events: none;
}

.program-hero-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.55fr);
    gap: clamp(3rem, 8vw, 8rem);
    align-items: end;
}

.program-hero h1,
.program-title,
.program-question,
.program-principle,
.program-application h2,
.program-lab h2 {
    font-family: "Playfair Display", "Noto Serif TC", Georgia, serif;
    font-weight: 400;
}

.zh .program-hero h1,
.zh .program-title,
.zh .program-question,
.zh .program-principle,
.zh .program-application h2,
.zh .program-lab h2 {
    font-family: "Noto Serif TC", "PingFang TC", serif;
    font-weight: 600;
}

.program-hero h1 {
    max-width: 850px;
    margin: 0;
    font-size: clamp(3.4rem, 7.6vw, 7.4rem);
    line-height: 0.98;
    letter-spacing: -0.04em;
    text-wrap: balance;
}

.zh .program-hero h1 {
    font-size: clamp(3.2rem, 6.8vw, 6.6rem);
    line-height: 1.08;
    letter-spacing: 0;
}

.program-hero-copy p {
    margin: 0;
    color: var(--program-muted);
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    font-weight: 300;
    line-height: 1.78;
}

.program-facts {
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem 1.25rem;
    margin-top: 1.7rem;
    padding-top: 1.45rem;
    border-top: 1px solid var(--program-line);
    color: var(--program-amber-soft);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.program-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 2rem;
}

.program-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 0.9rem 1.4rem;
    border: 1px solid rgba(244, 234, 214, 0.25);
    color: var(--program-cream);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-decoration: none;
    text-transform: uppercase;
    transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.program-button--primary {
    border-color: var(--program-amber);
    background: var(--program-amber);
    color: var(--program-ink);
}

.program-button:hover,
.program-button:focus-visible {
    border-color: var(--program-amber-soft);
    background: rgba(229, 181, 101, 0.08);
}

.program-button--primary:hover,
.program-button--primary:focus-visible {
    background: var(--program-amber-soft);
    color: var(--program-ink);
}

.program-intro {
    background: var(--program-paper);
    color: var(--program-ink);
}

.program-split {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(3rem, 9vw, 9rem);
    align-items: start;
}

.program-title {
    max-width: 760px;
    margin: 0;
    font-size: clamp(2.55rem, 5vw, 5.1rem);
    line-height: 1.06;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .program-title {
    line-height: 1.16;
    letter-spacing: 0;
}

.program-prose p {
    max-width: 690px;
    margin: 0 0 1.25rem;
    color: #455169;
    font-size: clamp(1rem, 1.35vw, 1.17rem);
    font-weight: 300;
    line-height: 1.82;
}

.program-prose p:last-child {
    margin-bottom: 0;
}

.program-question-band {
    background: var(--program-deep);
}

.program-question {
    max-width: 980px;
    margin: 0;
    font-size: clamp(2.6rem, 5.7vw, 6rem);
    line-height: 1.07;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .program-question {
    line-height: 1.18;
    letter-spacing: 0;
}

.program-questions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
    margin-top: clamp(3rem, 6vw, 5rem);
    border-top: 1px solid var(--program-line);
}

.program-question-item {
    display: grid;
    grid-template-columns: 2.5rem 1fr;
    gap: 1rem;
    padding: 1.5rem 1.5rem 1.5rem 0;
    border-bottom: 1px solid var(--program-line);
    color: var(--program-muted);
    line-height: 1.7;
}

.program-question-item:nth-child(even) {
    padding-left: 1.5rem;
    border-left: 1px solid var(--program-line);
}

.program-question-item span {
    color: var(--program-amber-soft);
    font-size: 0.72rem;
    font-weight: 700;
}

.program-contexts {
    background: #152133;
}

.program-context-list {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1px;
    margin-top: clamp(3rem, 6vw, 5rem);
    background: var(--program-line);
    border: 1px solid var(--program-line);
}

.program-context {
    min-height: 190px;
    padding: clamp(1.5rem, 3vw, 2.4rem);
    background: var(--program-deep);
}

.program-context span {
    color: var(--program-amber-soft);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.program-context h3 {
    margin: 2.5rem 0 0;
    color: var(--program-cream);
    font-size: clamp(1.15rem, 2vw, 1.45rem);
    font-weight: 500;
    line-height: 1.45;
}

.program-process {
    background: var(--program-paper);
    color: var(--program-ink);
}

.program-steps {
    list-style: none;
    margin: clamp(3rem, 6vw, 5rem) 0 0;
    padding: 0;
    border-top: 1px solid rgba(24, 32, 51, 0.16);
}

.program-step {
    display: grid;
    grid-template-columns: 4rem minmax(190px, 0.55fr) minmax(0, 1fr);
    gap: clamp(1.2rem, 3vw, 3rem);
    padding-block: clamp(2rem, 4vw, 3rem);
    border-bottom: 1px solid rgba(24, 32, 51, 0.16);
}

.program-step-number {
    color: #9a551f;
    font-family: "Playfair Display", Georgia, serif;
    font-size: 1.25rem;
}

.program-step h3 {
    margin: 0;
    font-family: "Playfair Display", "Noto Serif TC", Georgia, serif;
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    font-weight: 400;
    line-height: 1.15;
}

.zh .program-step h3 {
    font-family: "Noto Serif TC", "PingFang TC", serif;
    font-weight: 600;
}

.program-step p {
    max-width: 660px;
    margin: 0;
    color: #4a566e;
    line-height: 1.8;
}

.program-timeline-band {
    background: var(--program-deep);
}

.program-timeline {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: clamp(3rem, 6vw, 5rem);
    border-top: 1px solid var(--program-line);
}

.program-day {
    position: relative;
    padding: 2rem 1.5rem 0 0;
}

.program-day:not(:first-child) {
    padding-left: 1.5rem;
    border-left: 1px solid var(--program-line);
}

.program-day::before {
    content: "";
    position: absolute;
    top: -5px;
    left: 0;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--program-amber-soft);
}

.program-day:not(:first-child)::before {
    left: -5px;
}

.program-day strong {
    display: block;
    color: var(--program-amber-soft);
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(2rem, 3.5vw, 3.4rem);
    font-weight: 400;
}

.program-day h3 {
    margin: 0.65rem 0 0.55rem;
    color: var(--program-cream);
    font-size: 1rem;
    font-weight: 600;
}

.program-day p {
    margin: 0;
    color: var(--program-muted);
    font-size: 0.9rem;
    line-height: 1.7;
}

.program-honesty {
    background: #101927;
}

.program-principle {
    max-width: 880px;
    margin: 0;
    font-size: clamp(2.7rem, 5.7vw, 6rem);
    line-height: 1.08;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .program-principle {
    line-height: 1.2;
    letter-spacing: 0;
}

.program-validity {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
    margin-top: clamp(3rem, 6vw, 5rem);
}

.program-validity div {
    padding-top: 1.25rem;
    border-top: 1px solid var(--program-line);
}

.program-validity strong {
    color: var(--program-amber-soft);
    font-size: 0.72rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.program-validity p {
    margin: 0.7rem 0 0;
    color: var(--program-muted);
    line-height: 1.75;
}

.program-application {
    scroll-margin-top: 6rem;
    background: var(--program-paper);
    color: var(--program-ink);
}

.program-application-inner {
    display: grid;
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
    gap: clamp(3rem, 9vw, 9rem);
    align-items: center;
}

.program-status-mark {
    min-height: 310px;
    display: grid;
    place-items: center;
    padding: 2rem;
    border: 1px solid rgba(24, 32, 51, 0.14);
    background: rgba(24, 32, 51, 0.025);
    text-align: center;
}

.program-status-mark span {
    color: #667086;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.program-application h2 {
    margin: 0;
    font-size: clamp(2.7rem, 5vw, 5.2rem);
    line-height: 1.06;
    letter-spacing: -0.025em;
}

.zh .program-application h2 {
    line-height: 1.16;
    letter-spacing: 0;
}

.program-application p {
    max-width: 650px;
    margin: 1.3rem 0 0;
    color: #455169;
    line-height: 1.8;
}

.program-application .program-button {
    margin-top: 2rem;
    border-color: var(--program-amber);
    background: var(--program-amber);
    color: var(--program-ink);
}

.program-lab {
    text-align: center;
    background:
        radial-gradient(circle at 50% 0%, rgba(201, 133, 42, 0.17), transparent 0 38%),
        var(--program-midnight);
}

.program-lab h2 {
    max-width: 850px;
    margin: 0 auto;
    font-size: clamp(2.7rem, 5.6vw, 5.7rem);
    line-height: 1.05;
    letter-spacing: -0.025em;
    text-wrap: balance;
}

.zh .program-lab h2 {
    line-height: 1.16;
    letter-spacing: 0;
}

.program-lab p {
    max-width: 700px;
    margin: 1.5rem auto 0;
    color: var(--program-muted);
    line-height: 1.78;
}

#mobile-menu {
    transform: translateY(-100%);
    transition: transform 0.35s ease;
    visibility: hidden;
    pointer-events: none;
    overflow-y: auto;
}

#mobile-menu.open {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

.language-menu {
    opacity: 0;
    transform: translateY(8px);
    visibility: hidden;
    pointer-events: none;
}

.language-menu.open,
.language-wrap:hover .language-menu,
.language-wrap:focus-within .language-menu {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
}

@media (max-width: 900px) {
    .program-hero-grid,
    .program-split,
    .program-application-inner {
        grid-template-columns: 1fr;
    }

    .program-questions,
    .program-context-list,
    .program-validity {
        grid-template-columns: 1fr;
    }

    .program-question-item:nth-child(even) {
        padding-left: 0;
        border-left: 0;
    }

    .program-step {
        grid-template-columns: 2.5rem minmax(0, 1fr);
    }

    .program-step p {
        grid-column: 2;
    }

    .program-timeline {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 3rem;
    }

    .program-day:nth-child(3) {
        padding-left: 0;
        border-left: 0;
    }

    .program-day:nth-child(3)::before {
        left: 0;
    }

    .program-status-mark {
        min-height: 230px;
    }
}

@media (max-width: 640px) {
    .program-band {
        padding-block: 4.25rem;
    }

    .program-hero {
        min-height: auto;
        padding-top: 9.25rem;
        padding-bottom: 4.75rem;
    }

    .program-hero::before {
        right: -3rem;
        top: 10rem;
        font-size: 18rem;
    }

    .program-hero h1 {
        font-size: clamp(2.9rem, 13.5vw, 4.2rem);
        line-height: 1.02;
    }

    .zh .program-hero h1 {
        font-size: clamp(2.75rem, 12.6vw, 3.85rem);
        line-height: 1.14;
    }

    .program-actions {
        flex-direction: column;
    }

    .program-button {
        width: 100%;
    }

    .program-step {
        grid-template-columns: 2rem minmax(0, 1fr);
        gap: 1rem;
    }

    .program-step h3 {
        font-size: 1.8rem;
    }

    .program-timeline {
        grid-template-columns: 1fr;
        row-gap: 0;
        border-top: 0;
    }

    .program-day,
    .program-day:not(:first-child),
    .program-day:nth-child(3) {
        padding: 1.5rem 0 1.5rem 1.5rem;
        border-top: 1px solid var(--program-line);
        border-left: 1px solid var(--program-line);
    }

    .program-day::before,
    .program-day:not(:first-child)::before,
    .program-day:nth-child(3)::before {
        top: 2rem;
        left: -5px;
    }
}

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

    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
    }
}