:root {
    --moon-bg: #020204;
    --moon-text: #ffffff;
    --moon-muted: rgba(255,255,255,0.68);
    --moon-line: rgba(255,255,255,0.14);
    --moon-panel: rgba(255,255,255,0.045);
    --moon-glow: rgba(241, 210, 123, 0.22);
}

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 50% -18%, rgba(255,255,255,0.14), transparent 30rem),
        radial-gradient(circle at 14% 42%, rgba(241,210,123,0.08), transparent 26rem),
        #020204;
    color: var(--moon-text);
}

.moon-today-shell {
    width: min(1180px, calc(100% - 36px));
    margin: 0 auto;
    padding: 34px 0 78px;
}

.moon-topbar {
    margin-bottom: 24px;
}

.moon-topbar nav a[aria-current="page"] {
    color: #f1d27b;
}

.moon-portrait-hero {
    min-height: min(760px, calc(100vh - 120px));
    display: grid;
    grid-template-columns: minmax(320px, 0.98fr) minmax(0, 1.02fr);
    align-items: center;
    gap: 52px;
    border-bottom: 1px solid var(--moon-line);
    padding: 32px 0 52px;
}

.moon-portrait-stage {
    position: relative;
    display: grid;
    place-items: center;
    aspect-ratio: 1;
}

.moon-portrait-stage::before {
    content: '';
    position: absolute;
    inset: 4%;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255,255,255,0.12), transparent 68%);
    filter: blur(18px);
}

.nasa-moon-image {
    position: relative;
    z-index: 2;
    width: min(78vw, 620px);
    height: auto;
    border-radius: 50%;
    -webkit-mask-image: url('../assets/mask_moon.jpg');
    mask-image: url('../assets/mask_moon.jpg');
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-mode: luminance;
    mask-mode: luminance;
    clip-path: circle(48.5% at 50% 50%);
    opacity: 0;
    transform: scale(0.985);
    transition: opacity 0.9s ease, transform 0.9s ease, filter 0.9s ease;
    filter:
        drop-shadow(0 42px 95px rgba(0,0,0,0.76))
        drop-shadow(0 0 42px var(--moon-glow));
}

.nasa-moon-image.is-loaded {
    opacity: 1;
    transform: scale(1);
}

.moon-portrait-ring {
    position: absolute;
    inset: 8%;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.12);
    box-shadow: inset 0 0 70px rgba(255,255,255,0.05), 0 0 70px rgba(255,255,255,0.04);
    z-index: 1;
}

.moon-copy {
    position: relative;
    z-index: 3;
}

.moon-copy h1 {
    font-size: clamp(4rem, 8vw, 7.8rem);
    margin: 0 0 18px;
    color: var(--moon-text);
}

.phase-summary {
    max-width: 620px;
    font-family: var(--font-display);
    font-size: clamp(1.4rem, 2.7vw, 2.25rem);
    line-height: 1.24;
    color: rgba(255,255,255,0.9);
}

.phase-metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin: 30px 0 22px;
}

.phase-metrics article {
    border: 1px solid var(--moon-line);
    border-radius: 8px;
    background: var(--moon-panel);
    padding: 15px;
}

.phase-metrics span {
    display: block;
    color: var(--moon-muted);
    font-size: 0.68rem;
    letter-spacing: 1.7px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.phase-metrics strong {
    font-size: 1.1rem;
    font-weight: 500;
}

.phase-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.next-phases {
    margin: 26px 0 22px;
}

.next-phase-list {
    display: grid;
    gap: 8px;
    margin-top: 10px;
}

.next-phase-item {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid var(--moon-line);
    color: rgba(255,255,255,0.78);
    font-family: var(--font-ui);
    font-size: 0.88rem;
}

.next-phase-item strong {
    color: var(--moon-text);
    font-weight: 500;
}

.image-credit {
    max-width: 620px;
    color: rgba(255,255,255,0.48);
    font-size: 0.78rem;
    margin-top: 22px;
}

.phase-story {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
    padding-top: 48px;
}

.phase-story article {
    border-top: 1px solid var(--moon-line);
    padding-top: 18px;
}

.phase-story h2 {
    color: var(--moon-text);
}

.phase-seo-guide,
.phase-faq {
    border-top: 1px solid var(--moon-line);
    margin-top: 54px;
    padding-top: 38px;
}

.guide-intro {
    max-width: 820px;
    margin-bottom: 28px;
}

.guide-intro h2,
.phase-faq h2 {
    color: var(--moon-text);
    font-size: clamp(2.4rem, 5vw, 4.4rem);
    line-height: 0.98;
    margin: 8px 0 16px;
}

.guide-intro p,
.guide-grid p,
.phase-faq p {
    color: var(--moon-muted);
    line-height: 1.75;
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 16px;
}

.guide-grid article {
    border: 1px solid var(--moon-line);
    border-radius: 8px;
    background: var(--moon-panel);
    padding: 18px;
}

.guide-grid h3 {
    color: var(--moon-text);
    margin: 0 0 10px;
}

.phase-faq details {
    border-top: 1px solid var(--moon-line);
    padding: 18px 0;
}

.phase-faq summary {
    cursor: pointer;
    color: var(--moon-text);
    font-family: var(--font-display);
    font-size: 1.5rem;
}

@media (max-width: 900px) {
    .moon-portrait-hero {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: left;
    }

    .moon-portrait-stage {
        order: -1;
        max-width: 620px;
        margin: 0 auto;
    }

    .phase-story {
        grid-template-columns: 1fr;
    }

    .guide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 680px) {
    .moon-today-shell {
        width: min(100% - 24px, 1180px);
        padding-top: 24px;
    }

    .moon-portrait-hero {
        min-height: auto;
        padding-top: 20px;
    }

    .nasa-moon-image {
        width: min(92vw, 520px);
    }

    .phase-metrics {
        grid-template-columns: 1fr;
    }

    .guide-grid {
        grid-template-columns: 1fr;
    }

    .next-phase-item {
        display: grid;
    }
}