/* ---------------------------------------------------
   Tokens
--------------------------------------------------- */
:root {
    --navy-950: #070c17;
    --navy-900: #0b1220;
    --navy-800: #111c30;
    --navy-700: #182541;
    --navy-600: #24365a;
    --amber: #f6a721;
    --amber-dim: #7a5a24;
    --teal: #2dd4bf;
    --text-hi: #eef2fb;
    --text-mid: #9fabc4;
    --text-low: #5c6987;

    --font-display: "Big Shoulders Display", sans-serif;
    --font-mono: "IBM Plex Mono", ui-monospace, monospace;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
    background: var(--navy-950);
    color: var(--text-hi);
    font-family: var(--font-mono);
}

body {
    background-image:
        radial-gradient(
            circle at 15% 0%,
            rgba(246, 167, 33, 0.05),
            transparent 45%
        ),
        radial-gradient(
            circle at 85% 100%,
            rgba(45, 212, 191, 0.05),
            transparent 45%
        );
    padding: clamp(16px, 4vw, 48px);
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}

/* ---------------------------------------------------
   Board shell
--------------------------------------------------- */
.board {
    max-width: 980px;
    margin: 0 auto;
    border: 1px solid var(--navy-600);
    border-radius: 18px;
    background: linear-gradient(180deg, var(--navy-900), var(--navy-950));
    box-shadow:
        0 40px 80px -40px rgba(0, 0, 0, 0.7),
        inset 0 1px 0 rgba(255, 255, 255, 0.03);
    overflow: hidden;
}

.board__header {
    padding: 28px clamp(18px, 4vw, 40px) 18px;
}

.board__title-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.board__title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(30px, 5vw, 44px);
    letter-spacing: 0.02em;
    text-transform: uppercase;
    margin: 0;
    color: var(--text-hi);
}

.board__clock {
    font-size: 13px;
    letter-spacing: 0.15em;
    color: var(--amber);
    background: var(--navy-800);
    border: 1px solid var(--navy-600);
    padding: 6px 12px;
    border-radius: 999px;
}

.board__subtitle {
    margin: 6px 0 0;
    font-size: 13px;
    color: var(--text-mid);
    letter-spacing: 0.04em;
}

.board__rule {
    margin-top: 18px;
    height: 1px;
    background: repeating-linear-gradient(
        90deg,
        var(--navy-600) 0 6px,
        transparent 6px 12px
    );
}

/* ---------------------------------------------------
   Scrolling porthole strip
--------------------------------------------------- */
.strip-wrap {
    position: relative;
    padding: 22px clamp(10px, 3vw, 30px);
    background: #0f2419;
    border-top: 1px solid var(--navy-600);
    border-bottom: 1px solid var(--navy-600);
}

.strip {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    scroll-snap-type: x proximity;
    padding: 6px 4px 14px;
    scrollbar-width: thin;
    scrollbar-color: var(--amber-dim) transparent;
}

.strip::-webkit-scrollbar {
    height: 6px;
}
.strip::-webkit-scrollbar-thumb {
    background: var(--amber-dim);
    border-radius: 999px;
}
.strip::-webkit-scrollbar-track {
    background: transparent;
}

.strip__loading {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-low);
    letter-spacing: 0.04em;
    padding: 30px 10px;
    margin: 0;
}

.porthole {
    scroll-snap-align: start;
    flex: 0 0 auto;
    width: 108px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: transparent;
    border: none;
    color: inherit;
    font-family: var(--font-mono);
    cursor: pointer;
    padding: 4px;
    border-radius: 12px;
    transition: transform 0.15s ease;
}

.porthole:hover {
    transform: translateY(-3px);
}
.porthole:focus-visible {
    outline: 2px solid var(--amber);
    outline-offset: 3px;
}

.porthole__rim {
    width: 92px;
    height: 92px;
    border-radius: 50%;
    padding: 5px;
    display: grid;
    place-items: center;
    background: conic-gradient(
        from 180deg,
        var(--navy-600),
        var(--navy-700),
        var(--navy-600)
    );
    border: 1px solid var(--navy-600);
    transition:
        box-shadow 0.15s ease,
        border-color 0.15s ease;
}

.porthole__img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    filter: saturate(0.85) brightness(0.92);
    transition: filter 0.15s ease;
}

.porthole:hover .porthole__img,
.porthole[aria-selected="true"] .porthole__img {
    filter: saturate(1.05) brightness(1);
}

.porthole[aria-selected="true"] .porthole__rim {
    border-color: var(--amber);
    box-shadow:
        0 0 0 3px rgba(246, 167, 33, 0.18),
        0 0 18px rgba(246, 167, 33, 0.25);
}

.porthole__gate {
    font-size: 10px;
    letter-spacing: 0.12em;
    color: var(--text-low);
}

.porthole__name {
    font-size: 12px;
    letter-spacing: 0.03em;
    text-align: center;
    color: var(--text-mid);
    text-transform: uppercase;
    line-height: 1.3;
}

.porthole[aria-selected="true"] .porthole__name {
    color: var(--amber);
}

.strip-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 34px;
    height: 34px;
    border-radius: 50%;
    border: 1px solid var(--navy-600);
    background: var(--navy-900);
    color: var(--text-mid);
    font-size: 18px;
    line-height: 1;
    cursor: pointer;
    display: grid;
    place-items: center;
    z-index: 2;
}

.strip-nav:hover {
    color: var(--amber);
    border-color: var(--amber-dim);
}
.strip-nav--left {
    left: -6px;
}
.strip-nav--right {
    right: -6px;
}

@media (max-width: 640px) {
    .strip-nav {
        display: none;
    }
}

/* ---------------------------------------------------
   Detail panel
--------------------------------------------------- */
.detail {
    position: relative;
    min-height: 220px;
    padding: clamp(20px, 4vw, 36px);
}

.detail__empty {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 180px;
    color: var(--text-low);
    font-family: var(--font-mono);
    letter-spacing: 0.15em;
    font-size: 13px;
}

.detail__cursor::after {
    content: "_";
    color: var(--amber);
    animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

.detail__card {
    display: grid;
    grid-template-columns: auto 1px 1fr;
    gap: clamp(16px, 3vw, 32px);
    align-items: start;
    animation: rise 0.35s ease both;
}

@keyframes rise {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.detail__media {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.detail__rim {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    padding: 7px;
    background: conic-gradient(
        from 180deg,
        var(--teal),
        var(--navy-700),
        var(--amber),
        var(--navy-700),
        var(--teal)
    );
    display: grid;
    place-items: center;
}

.detail__img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    background: var(--navy-800);
}

.detail__gate {
    font-size: 11px;
    letter-spacing: 0.15em;
    color: var(--navy-950);
    background: var(--amber);
    padding: 3px 10px;
    border-radius: 999px;
    font-weight: 600;
}

.detail__perforation {
    align-self: stretch;
    background: repeating-linear-gradient(
        180deg,
        var(--navy-600) 0 6px,
        transparent 6px 13px
    );
}

.detail__heading h2 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(26px, 4vw, 34px);
    text-transform: uppercase;
    margin: 0;
    letter-spacing: 0.01em;
}

.detail__tagline {
    margin: 4px 0 0;
    color: var(--teal);
    font-size: 13px;
    font-style: normal;
}

.detail__rows {
    margin: 18px 0 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 12px 20px;
}

.detail__row {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--navy-700);
}

.detail__row dt {
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-low);
}

.detail__row dd {
    margin: 0;
    font-size: 14px;
    color: var(--text-hi);
    letter-spacing: 0.02em;
}

.detail__description {
    margin: 20px 0 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-mid);
    font-family:
        system-ui,
        -apple-system,
        "Segoe UI",
        sans-serif;
    max-width: 60ch;
}

.detail__status {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-low);
    min-height: 16px;
}

@media (max-width: 640px) {
    .detail__card {
        grid-template-columns: 1fr;
        justify-items: center;
        text-align: center;
    }
    .detail__perforation {
        display: none;
    }
    .detail__rows {
        text-align: left;
    }
}

/* ---------------------------------------------------
   Footer
--------------------------------------------------- */
.board__footer {
    padding: 14px clamp(18px, 4vw, 40px) 22px;
    text-align: right;
}

.board__footer a {
    font-size: 12px;
    color: var(--text-low);
    text-decoration: none;
    letter-spacing: 0.04em;
}

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