/*
 * Summer Into AI 2026
 * A compact visual system for the competition hub and its weekly trackers.
 * The artwork is an editorial index of the prompts, not a replacement for
 * participants' original submission images.
 */

@property --engine-pressure {
    syntax: "<percentage>";
    inherits: false;
    initial-value: 38%;
}

.summer-competition-page,
.summer-tracker-page {
    --summer-ink: #17212b;
    --summer-blue: #24567a;
    --summer-rust: #a85b38;
    --summer-marigold: #c8932d;
    --summer-paper: #f3f0e8;
    --summer-paper-bright: #fbfaf6;
}

.summer-competition-page .summer-hero {
    padding: clamp(3.25rem, 7vw, 5.75rem) 0 clamp(2.5rem, 5vw, 4.5rem);
    background: var(--summer-paper-bright);
}

.summer-competition-page .summer-hero h1 {
    max-width: 850px;
    margin-bottom: 1rem;
}

.summer-competition-page .summer-deck {
    max-width: 670px;
    margin-bottom: 1.5rem;
}

.summer-competition-page .summer-hero-actions {
    margin-bottom: 0;
}

.summer-competition-page .summer-hero-visual {
    margin: clamp(2rem, 5vw, 3.5rem) 0 0;
    overflow: hidden;
    border: 1px solid var(--editorial-rule-strong);
    border-radius: 0;
    background: var(--summer-paper);
}

.summer-competition-page .summer-hero-visual img {
    display: block;
    width: 100%;
    height: auto;
    min-height: 300px;
    max-height: 570px;
    object-fit: cover;
    object-position: center 53%;
    border: 0;
    border-radius: 0;
}

.summer-competition-page .summer-body {
    padding-bottom: 4rem;
}

.summer-competition-page .summer-themes {
    margin-top: clamp(4rem, 8vw, 7rem);
}

.summer-theme-intro {
    max-width: 710px;
    margin-bottom: 1.75rem;
}

.summer-theme-intro h2 {
    margin: 0.25rem 0 0.8rem;
}

.summer-theme-intro p:last-child {
    margin-bottom: 0;
}

.summer-theme-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.summer-theme-link {
    display: block;
    color: inherit;
    text-decoration: none;
}

.summer-theme-link:focus-visible {
    outline: 3px solid var(--editorial-blue);
    outline-offset: 4px;
}

.summer-theme-link:hover .summer-theme-panel {
    border-color: var(--editorial-blue);
}

.summer-theme-link:hover .summer-theme-panel img {
    transform: scale(1.025);
}

.summer-theme-panel {
    min-width: 0;
    margin: 0;
    overflow: hidden;
    border: 1px solid var(--editorial-rule);
    border-radius: 0;
    background: var(--summer-paper-bright);
}

.summer-theme-panel img {
    display: block;
    width: 100%;
    aspect-ratio: 3 / 2;
    object-fit: cover;
    border: 0;
    transition: transform 180ms ease;
}

.summer-theme-panel figcaption {
    min-height: 96px;
    padding: 0.9rem 1rem 1rem;
    border-top: 1px solid var(--editorial-rule);
}

.summer-theme-panel__week {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--editorial-muted);
    font-size: 0.71rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.summer-theme-panel strong {
    display: block;
    color: var(--summer-ink);
    font-family: var(--editorial-serif);
    font-size: 1.22rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    line-height: 1.15;
}

.summer-tracker-page .tracker-hero {
    padding: clamp(2.75rem, 6vw, 4.5rem) 0 0;
}

.summer-tracker-page .tracker-hero .container {
    max-width: 900px;
}

.summer-tracker-page .tracker-hero h1 {
    margin-bottom: 0.75rem;
}

.summer-tracker-page .summer-tracker-art {
    margin: 1.5rem 0 0;
    overflow: hidden;
    border: 1px solid var(--editorial-rule-strong);
    border-radius: 0;
    background: var(--summer-paper);
}

.summer-tracker-page .summer-tracker-art img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 7;
    object-fit: cover;
    object-position: center 52%;
}

.summer-tracker-page .summer-tracker-art figcaption {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: baseline;
    padding: 0.72rem 0.95rem 0.78rem;
    border-top: 1px solid var(--editorial-rule);
    color: var(--editorial-muted);
    font-size: 0.77rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.summer-tracker-page .summer-tracker-art strong {
    color: var(--summer-ink);
    font-family: var(--editorial-serif);
    font-size: 1rem;
    letter-spacing: -0.01em;
    text-transform: none;
}

.summer-tracker-page .tracker-wrap {
    padding-top: 2.25rem;
}

/* Weekly trackers use a different visual rhythm from the content hub: a quiet
   animated field sets the prompt, then the directory and two-column entries
   let readers move through a large number of submissions without a long stack. */
.summer-tracker-page {
    position: relative;
    overflow-x: clip;
    isolation: isolate;
}

.summer-tracker-page > main,
.summer-tracker-page > .editorial-footer {
    position: relative;
    z-index: 1;
}

.summer-tracker-page .tracker-hero {
    position: relative;
    overflow: clip;
    isolation: isolate;
    background: var(--summer-paper-bright);
}

.summer-tracker-page .tracker-hero::before,
.summer-tracker-page .tracker-hero::after {
    position: absolute;
    z-index: 0;
    content: "";
    pointer-events: none;
}

.summer-tracker-page .tracker-hero .container {
    position: relative;
    z-index: 2;
}

.summer-tracker-page .summer-motion-field {
    position: fixed;
    inset: 0;
    z-index: 0;
    overflow: hidden;
    pointer-events: none;
    contain: layout paint;
}

.summer-tracker-page .summer-motion-field::before,
.summer-tracker-page .summer-motion-field::after,
.summer-tracker-page .summer-motion-sprite::before,
.summer-tracker-page .summer-motion-sprite::after {
    position: absolute;
    display: block;
    content: "";
}

.summer-tracker-page .summer-motion-sprite {
    position: absolute;
    display: block;
    pointer-events: none;
    transform-origin: 50% 50%;
    will-change: transform, opacity;
}

.summer-tracker-page .tracker-summary {
    margin-bottom: 1.25rem;
}

.summer-tracker-page .tracker-directory {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    justify-content: space-between;
    margin: 0 0 3.5rem;
    padding: 1rem 0;
    border-top: 1px solid var(--editorial-rule-strong);
    border-bottom: 1px solid var(--editorial-rule);
}

.summer-tracker-page .tracker-directory__label {
    flex: 0 0 auto;
    margin: 0.1rem 0 0;
    color: var(--editorial-muted);
    font-size: 0.71rem;
    font-weight: 750;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.summer-tracker-page .tracker-directory__links {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.55rem 0.9rem;
}

.summer-tracker-page .tracker-directory a {
    color: var(--editorial-blue);
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
}

.summer-tracker-page .tracker-directory a:hover {
    color: var(--editorial-blue-dark);
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

.summer-tracker-page .tracker-participant {
    margin: 0;
    padding: 2.25rem 0 3.5rem;
    border-top: 1px solid var(--editorial-rule);
}

.summer-tracker-page .tracker-participant:not(:first-of-type) {
    content-visibility: auto;
    contain-intrinsic-size: auto 760px;
}

.summer-tracker-page .tracker-participant-heading {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    align-items: baseline;
    justify-content: space-between;
    margin-bottom: 1.15rem;
}

.summer-tracker-page .tracker-participant-heading h2 {
    margin: 0;
    padding: 0;
    border: 0;
    color: var(--summer-ink);
    font-size: clamp(1.45rem, 2.4vw, 2rem);
}

.summer-tracker-page .tracker-participant-heading p,
.summer-tracker-page .tracker-participant-count {
    margin: 0;
    color: var(--editorial-muted);
    font-size: 0.74rem;
    font-weight: 750;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.summer-tracker-page .tracker-participant-count {
    margin-left: auto;
}

.summer-tracker-page .tracker-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.summer-tracker-page .tracker-card:only-child,
.summer-tracker-page .tracker-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
}

.summer-tracker-page .tracker-card {
    grid-template-columns: 108px minmax(0, 1fr);
    min-width: 0;
    height: 100%;
    margin: 0;
    padding: 1rem;
    border-radius: 0;
    box-shadow: none;
}

.summer-tracker-page .tracker-card:hover {
    border-color: var(--editorial-blue);
}

.summer-tracker-page .tracker-thumb {
    width: 108px;
    height: 82px;
    border-radius: 0;
}

.summer-tracker-page .tracker-card h3 {
    margin: 0.4rem 0 0.55rem;
    font-size: 1.06rem;
    line-height: 1.22;
}

.summer-tracker-page .tracker-card p {
    display: -webkit-box;
    margin: 0;
    overflow: hidden;
    line-height: 1.5;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
}

.summer-tracker-page .tracker-links {
    gap: 0.45rem 0.7rem;
    margin-top: 0.75rem;
    font-size: 0.86rem;
}

/* Week 1 / 8-Bit America: stepped pixel rockets burst around the arcade art. */
.summer-tracker-page--week-1 .tracker-hero::before {
    inset: 0;
    background:
        radial-gradient(circle at 12% 26%, rgba(200, 147, 45, 0.16) 0 2px, transparent 3px),
        radial-gradient(circle at 88% 17%, rgba(168, 91, 56, 0.13) 0 2px, transparent 3px),
        linear-gradient(90deg, rgba(23, 33, 43, 0.04) 1px, transparent 1px),
        linear-gradient(rgba(23, 33, 43, 0.04) 1px, transparent 1px);
    background-size: 64px 64px, 83px 83px, 16px 16px, 16px 16px;
    opacity: 0.52;
    animation: summer-firework-pulse 11s steps(8, end) infinite;
}

.summer-tracker-page--week-1 .tracker-hero::after {
    inset: -2rem;
    background:
        repeating-conic-gradient(from 0deg at 9% 42%, rgba(200, 147, 45, 0.12) 0deg 2deg, transparent 2deg 14deg),
        repeating-conic-gradient(from 6deg at 91% 35%, rgba(168, 91, 56, 0.1) 0deg 2deg, transparent 2deg 16deg),
        linear-gradient(180deg, rgba(251, 250, 246, 0.2), rgba(243, 240, 232, 0.64));
    opacity: 0.72;
    animation: summer-pixel-drift 16s steps(12, end) infinite;
}

.summer-tracker-page--week-1 .summer-motion-field::before {
    inset: 0;
    background:
        radial-gradient(circle, rgba(36, 86, 122, 0.14) 0 2px, transparent 2.5px),
        radial-gradient(circle, rgba(200, 147, 45, 0.18) 0 2px, transparent 2.5px),
        linear-gradient(90deg, rgba(23, 33, 43, 0.05) 1px, transparent 1px),
        linear-gradient(rgba(23, 33, 43, 0.05) 1px, transparent 1px);
    background-position: 0 0, 19px 19px, 0 0, 0 0;
    background-size: 38px 38px, 38px 38px, 19px 19px, 19px 19px;
    opacity: 0.42;
    -webkit-mask-image: linear-gradient(90deg, #000 0 18%, transparent 35% 65%, #000 82% 100%);
    mask-image: linear-gradient(90deg, #000 0 18%, transparent 35% 65%, #000 82% 100%);
    animation: summer-page-pixel-scroll 18s steps(18, end) infinite;
}

.summer-tracker-page--week-1 .summer-motion-field::after {
    inset: -20% 0;
    background:
        repeating-linear-gradient(180deg, transparent 0 31px, rgba(200, 147, 45, 0.22) 31px 35px, transparent 35px 78px),
        repeating-linear-gradient(180deg, transparent 0 57px, rgba(168, 91, 56, 0.17) 57px 60px, transparent 60px 103px);
    background-position: 5vw 0, calc(100% - 6vw) 0;
    background-repeat: no-repeat;
    background-size: 4px 100%, 4px 100%;
    opacity: 0.72;
    animation: summer-pixel-rain 9s steps(14, end) infinite;
}

.summer-tracker-page--week-1 .summer-motion-sprite {
    --burst-color: rgba(200, 147, 45, 0.78);
    --delay: 0s;
    width: 7px;
    height: 7px;
    border-radius: 1px;
    color: var(--burst-color);
    background: currentColor;
    box-shadow:
        0 -54px 0 -1px currentColor,
        38px -38px 0 -1px currentColor,
        54px 0 0 -1px currentColor,
        38px 38px 0 -1px currentColor,
        0 54px 0 -1px currentColor,
        -38px 38px 0 -1px currentColor,
        -54px 0 0 -1px currentColor,
        -38px -38px 0 -1px currentColor,
        0 -27px 0 -2px currentColor,
        27px 0 0 -2px currentColor,
        0 27px 0 -2px currentColor,
        -27px 0 0 -2px currentColor;
    opacity: 0;
    filter: drop-shadow(0 0 5px rgba(200, 147, 45, 0.2));
    animation: summer-pixel-burst 6.8s steps(9, end) infinite;
    animation-delay: var(--delay);
}

.summer-tracker-page--week-1 .summer-motion-sprite::after {
    top: 11px;
    left: 2px;
    width: 3px;
    height: 88px;
    background: repeating-linear-gradient(to bottom, currentColor 0 4px, transparent 4px 11px);
    transform-origin: 50% 0;
    animation: summer-pixel-rocket 6.8s steps(9, end) infinite;
    animation-delay: var(--delay);
}

.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(1) { top: 28%; left: 7%; --delay: -1.1s; }
.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(2) { top: 18%; right: 8%; --burst-color: rgba(168, 91, 56, 0.7); --delay: -4.9s; }
.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(3) { top: 64%; left: 13%; --burst-color: rgba(36, 86, 122, 0.62); --delay: -3.2s; }
.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(4) { top: 70%; right: 10%; --delay: -6.2s; }
.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(5) { top: 45%; left: 2%; --burst-color: rgba(168, 91, 56, 0.66); --delay: -2.4s; }
.summer-tracker-page--week-1 .summer-motion-sprite:nth-child(6) { top: 48%; right: 2%; --burst-color: rgba(36, 86, 122, 0.62); --delay: -5.6s; }

/* Week 2 / Independence Engines: independently moving gears, belt, piston, and ignition sparks. */
.summer-tracker-page--week-2 .tracker-hero::before {
    inset: -12rem -9rem;
    background:
        radial-gradient(circle at 82% 31%, transparent 0 7.5rem, rgba(36, 86, 122, 0.12) 7.55rem 7.7rem, transparent 7.75rem),
        radial-gradient(circle at 18% 74%, transparent 0 5.2rem, rgba(168, 91, 56, 0.1) 5.25rem 5.4rem, transparent 5.45rem),
        repeating-conic-gradient(from 0deg at 82% 31%, rgba(36, 86, 122, 0.06) 0deg 1deg, transparent 1deg 12deg),
        repeating-conic-gradient(from 3deg at 18% 74%, rgba(168, 91, 56, 0.05) 0deg 1deg, transparent 1deg 15deg);
    opacity: 0.7;
    animation: summer-gear-turn 48s linear infinite;
}

.summer-tracker-page--week-2 .tracker-hero::after {
    inset: 0;
    background:
        linear-gradient(90deg, rgba(36, 86, 122, 0.055) 1px, transparent 1px),
        linear-gradient(rgba(36, 86, 122, 0.055) 1px, transparent 1px),
        repeating-linear-gradient(135deg, transparent 0 52px, rgba(168, 91, 56, 0.055) 53px 54px, transparent 55px 106px);
    background-size: 28px 28px, 28px 28px, 106px 106px;
    opacity: 0.66;
    animation: summer-engine-drift 22s linear infinite;
}

.summer-tracker-page--week-2 .summer-motion-field::before {
    top: -18vh;
    bottom: -18vh;
    left: clamp(18px, 3vw, 52px);
    width: 24px;
    border: 2px solid rgba(36, 86, 122, 0.2);
    border-radius: 999px;
    background:
        repeating-linear-gradient(180deg, rgba(36, 86, 122, 0.3) 0 10px, transparent 10px 23px),
        rgba(251, 250, 246, 0.48);
    box-shadow: inset 0 0 0 5px rgba(36, 86, 122, 0.05), 0 0 0 1px rgba(251, 250, 246, 0.8);
    opacity: 0.78;
    animation: summer-chain-climb 2.6s linear infinite;
}

.summer-tracker-page--week-2 .summer-motion-field::after {
    top: 12vh;
    right: clamp(20px, 3.4vw, 58px);
    width: 12px;
    height: 72vh;
    border: 2px solid rgba(168, 91, 56, 0.22);
    border-radius: 999px;
    background:
        linear-gradient(to top, rgba(168, 91, 56, 0.34) 0 var(--engine-pressure, 38%), transparent var(--engine-pressure, 38%) 100%),
        repeating-linear-gradient(to bottom, transparent 0 25px, rgba(23, 33, 43, 0.17) 25px 27px);
    box-shadow: 0 0 0 5px rgba(251, 250, 246, 0.66), 0 0 0 6px rgba(168, 91, 56, 0.08);
    opacity: 0.8;
    animation: summer-pressure-rise 5.4s steps(12, end) infinite;
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(-n+3) {
    box-sizing: border-box;
    border: clamp(5px, 0.65vw, 10px) dashed currentColor;
    border-radius: 50%;
    color: rgba(36, 86, 122, 0.36);
    box-shadow: inset 0 0 0 4px currentColor, 0 0 0 2px rgba(36, 86, 122, 0.12);
    opacity: 0.72;
    animation: summer-gear-clockwise var(--gear-speed, 17s) linear infinite;
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(-n+3)::before {
    inset: 20%;
    border: 4px solid currentColor;
    border-radius: 50%;
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(-n+3)::after {
    top: 40%;
    left: 40%;
    width: 20%;
    height: 20%;
    border-radius: 50%;
    background: currentColor;
    box-shadow: 0 0 0 5px rgba(251, 250, 246, 0.88);
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(1) { top: 8%; right: -44px; width: 190px; height: 190px; --gear-speed: 19s; }
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(2) { bottom: 12%; left: -34px; width: 138px; height: 138px; color: rgba(168, 91, 56, 0.3); animation-name: summer-gear-counter; --gear-speed: 13s; }
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(3) { right: 11%; bottom: 4%; width: 88px; height: 88px; --gear-speed: 9s; }

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4) {
    top: 34%;
    left: -32px;
    width: min(31vw, 330px);
    height: 62px;
    border: 3px solid rgba(36, 86, 122, 0.22);
    border-radius: 999px;
    background: repeating-linear-gradient(90deg, rgba(36, 86, 122, 0.15) 0 14px, transparent 14px 29px);
    background-size: 58px 100%;
    opacity: 0.78;
    transform: rotate(-9deg);
    animation: summer-drive-belt 2.8s linear infinite;
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4)::before,
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4)::after {
    top: 8px;
    width: 40px;
    height: 40px;
    border: 3px solid rgba(36, 86, 122, 0.24);
    border-radius: 50%;
    background: rgba(251, 250, 246, 0.78);
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4)::before { left: 8px; }
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4)::after { right: 8px; }

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(5) {
    top: 55%;
    right: -24px;
    width: 190px;
    height: 13px;
    border: 2px solid rgba(168, 91, 56, 0.24);
    background: repeating-linear-gradient(90deg, rgba(168, 91, 56, 0.26) 0 10px, rgba(251, 250, 246, 0.5) 10px 18px);
    transform: rotate(10deg);
    animation: summer-piston-stroke 3.4s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(5)::before,
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(5)::after {
    top: -9px;
    width: 27px;
    height: 27px;
    border: 3px solid rgba(168, 91, 56, 0.28);
    border-radius: 50%;
    background: var(--summer-paper-bright);
}

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(5)::before { left: -16px; }
.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(5)::after { right: -16px; }

.summer-tracker-page--week-2 .summer-motion-sprite:nth-child(6) {
    bottom: 8%;
    left: 20%;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    color: rgba(200, 147, 45, 0.76);
    background: currentColor;
    box-shadow: 13px -16px currentColor, 25px 3px currentColor, 7px 18px currentColor, -11px 8px currentColor;
    animation: summer-engine-spark 3.8s steps(6, end) infinite;
}

/* Week 3 / Data.Punk: live routes carry packets across a moving civic-data grid. */
.summer-tracker-page--week-3 .tracker-hero::before {
    inset: 0;
    background:
        linear-gradient(90deg, rgba(36, 86, 122, 0.09) 1px, transparent 1px),
        linear-gradient(rgba(36, 86, 122, 0.09) 1px, transparent 1px),
        linear-gradient(90deg, rgba(36, 86, 122, 0.04) 1px, transparent 1px),
        linear-gradient(rgba(36, 86, 122, 0.04) 1px, transparent 1px),
        radial-gradient(circle, rgba(168, 91, 56, 0.16) 0 2px, transparent 3px);
    background-size: 32px 32px, 32px 32px, 128px 128px, 128px 128px, 96px 96px;
    opacity: 0.72;
    animation: summer-data-grid 18s linear infinite;
}

.summer-tracker-page--week-3 .tracker-hero::after {
    inset: -35% 0;
    background: linear-gradient(to bottom, transparent 45%, rgba(36, 86, 122, 0.04) 47%, rgba(36, 86, 122, 0.22) 50%, rgba(200, 147, 45, 0.08) 52%, transparent 55%);
    opacity: 0.62;
    animation: summer-data-scan 7.2s cubic-bezier(0.55, 0, 0.45, 1) infinite;
}

.summer-tracker-page--week-3 .summer-motion-field::before {
    top: 8%;
    left: -8%;
    width: 116%;
    overflow: hidden;
    color: rgba(36, 86, 122, 0.13);
    content: "010011  DATA.PUNK  110100  CIVIC SIGNAL  001011  OPEN CHANNEL  101100";
    font: 700 0.66rem/1 ui-monospace, SFMono-Regular, Consolas, monospace;
    letter-spacing: 0.28em;
    white-space: nowrap;
    animation: summer-data-ticker 17s linear infinite;
}

.summer-tracker-page--week-3 .summer-motion-field::after {
    right: -4%;
    bottom: 8%;
    width: 108%;
    height: 26px;
    background: repeating-linear-gradient(90deg, transparent 0 12px, rgba(36, 86, 122, 0.14) 12px 14px, transparent 14px 29px, rgba(200, 147, 45, 0.18) 29px 33px);
    clip-path: polygon(0 55%, 8% 55%, 10% 10%, 13% 90%, 16% 40%, 22% 55%, 100% 55%, 100% 62%, 0 62%);
    animation: summer-data-wave 10s steps(16, end) infinite;
}

.summer-tracker-page--week-3 .summer-motion-sprite {
    --route-angle: 0deg;
    --route-delay: 0s;
    width: clamp(130px, 22vw, 300px);
    height: 2px;
    color: rgba(36, 86, 122, 0.46);
    background: linear-gradient(90deg, transparent, currentColor 14% 86%, transparent);
    opacity: 0.3;
    transform: rotate(var(--route-angle));
    animation: summer-data-link 4.6s ease-in-out infinite;
    animation-delay: var(--route-delay);
}

.summer-tracker-page--week-3 .summer-motion-sprite::before {
    top: -5px;
    left: -3px;
    width: 10px;
    height: 10px;
    border: 2px solid currentColor;
    border-radius: 50%;
    background: rgba(251, 250, 246, 0.86);
    animation: summer-data-node 2.8s ease-out infinite;
    animation-delay: var(--route-delay);
}

.summer-tracker-page--week-3 .summer-motion-sprite::after {
    top: -3px;
    left: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--summer-marigold);
    box-shadow: 0 0 0 3px rgba(200, 147, 45, 0.12);
    animation: summer-data-packet 3.4s cubic-bezier(0.45, 0, 0.55, 1) infinite;
    animation-delay: var(--route-delay);
}

.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(1) { top: 23%; left: -2%; --route-angle: 14deg; --route-delay: -0.7s; }
.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(2) { top: 26%; right: -3%; --route-angle: -18deg; --route-delay: -2.4s; color: rgba(168, 91, 56, 0.4); }
.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(3) { bottom: 24%; left: 5%; --route-angle: -8deg; --route-delay: -1.6s; }
.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(4) { right: 1%; bottom: 19%; --route-angle: 12deg; --route-delay: -3.1s; }
.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(5) { top: 13%; left: 31%; width: 180px; --route-angle: 4deg; --route-delay: -4s; color: rgba(168, 91, 56, 0.34); }
.summer-tracker-page--week-3 .summer-motion-sprite:nth-child(6) { top: 54%; right: 27%; width: 200px; --route-angle: -4deg; --route-delay: -1.2s; }

/* Week 4 / Built on Yesterday: recovered parts drift in and lock onto a living blueprint. */
.summer-tracker-page--week-4 .tracker-hero::before {
    inset: 0;
    background:
        linear-gradient(90deg, rgba(36, 86, 122, 0.09) 1px, transparent 1px),
        linear-gradient(rgba(36, 86, 122, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(36, 86, 122, 0.04) 1px, transparent 1px),
        linear-gradient(rgba(36, 86, 122, 0.04) 1px, transparent 1px),
        linear-gradient(135deg, transparent 0 49%, rgba(168, 91, 56, 0.11) 49.2% 49.8%, transparent 50% 100%);
    background-size: 36px 36px, 36px 36px, 144px 144px, 144px 144px, 118px 118px;
    opacity: 0.7;
    animation: summer-blueprint-drift 24s linear infinite;
}

.summer-tracker-page--week-4 .tracker-hero::after {
    inset: -1rem -4rem;
    background:
        repeating-linear-gradient(100deg, transparent 0 38px, rgba(200, 147, 45, 0.11) 39px 41px, transparent 42px 90px),
        radial-gradient(circle at 15% 70%, rgba(168, 91, 56, 0.1) 0 3.8rem, transparent 3.85rem),
        radial-gradient(circle at 86% 22%, rgba(36, 86, 122, 0.08) 0 5rem, transparent 5.05rem);
    opacity: 0.52;
    animation: summer-paper-shift 16s ease-in-out infinite;
}

.summer-tracker-page--week-4 .summer-motion-field::before {
    top: 48%;
    left: -10%;
    width: 120%;
    height: 3px;
    background: repeating-linear-gradient(90deg, rgba(168, 91, 56, 0.28) 0 7px, transparent 7px 15px, rgba(200, 147, 45, 0.28) 15px 18px, transparent 18px 28px);
    transform: rotate(-4deg);
    animation: summer-seam-stitch 4.8s steps(12, end) infinite;
}

.summer-tracker-page--week-4 .summer-motion-field::after {
    top: 12%;
    right: 3%;
    width: 148px;
    height: 148px;
    border: 1px solid rgba(36, 86, 122, 0.17);
    border-radius: 50%;
    box-shadow: inset 0 0 0 22px rgba(36, 86, 122, 0.025), inset 0 0 0 23px rgba(36, 86, 122, 0.13), inset 0 0 0 48px rgba(36, 86, 122, 0.025);
    animation: summer-blueprint-orbit 18s linear infinite;
}

.summer-tracker-page--week-4 .summer-motion-sprite {
    --piece-x: 0px;
    --piece-y: 0px;
    --piece-r: 0deg;
    --piece-delay: 0s;
    box-sizing: border-box;
    width: var(--piece-w, 130px);
    height: var(--piece-h, 78px);
    border: 1px solid rgba(36, 86, 122, 0.32);
    background:
        linear-gradient(90deg, transparent 49%, rgba(36, 86, 122, 0.13) 50%, transparent 51%),
        linear-gradient(transparent 49%, rgba(36, 86, 122, 0.13) 50%, transparent 51%),
        rgba(251, 250, 246, 0.5);
    box-shadow: 7px 7px 0 rgba(168, 91, 56, 0.07);
    opacity: 0.18;
    animation: summer-component-assemble 12s cubic-bezier(0.65, 0, 0.35, 1) infinite;
    animation-delay: var(--piece-delay);
}

.summer-tracker-page--week-4 .summer-motion-sprite::before {
    inset: 10px;
    border: 1px dashed rgba(36, 86, 122, 0.22);
    background: repeating-linear-gradient(135deg, transparent 0 10px, rgba(200, 147, 45, 0.08) 10px 11px);
}

.summer-tracker-page--week-4 .summer-motion-sprite::after {
    top: 5px;
    right: 5px;
    width: 7px;
    height: 7px;
    border: 1px solid rgba(168, 91, 56, 0.36);
    border-radius: 50%;
    background: var(--summer-paper-bright);
}

.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(1) { top: 15%; left: 1%; --piece-w: 150px; --piece-h: 86px; --piece-x: -118px; --piece-y: -34px; --piece-r: -13deg; --piece-delay: -1.2s; }
.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(2) { top: 27%; right: -18px; --piece-w: 168px; --piece-h: 70px; --piece-x: 132px; --piece-y: -22px; --piece-r: 11deg; --piece-delay: -4.8s; }
.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(3) { bottom: 17%; left: 4%; --piece-w: 108px; --piece-h: 116px; --piece-x: -92px; --piece-y: 66px; --piece-r: 16deg; --piece-delay: -7.4s; }
.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(4) { right: 7%; bottom: 8%; --piece-w: 142px; --piece-h: 94px; --piece-x: 106px; --piece-y: 58px; --piece-r: -12deg; --piece-delay: -9.8s; }
.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(5) { top: 7%; left: 34%; --piece-w: 92px; --piece-h: 52px; --piece-x: -28px; --piece-y: -72px; --piece-r: -18deg; --piece-delay: -3.1s; }
.summer-tracker-page--week-4 .summer-motion-sprite:nth-child(6) { right: 31%; bottom: 3%; --piece-w: 118px; --piece-h: 58px; --piece-x: 36px; --piece-y: 74px; --piece-r: 14deg; --piece-delay: -6.2s; }

@keyframes summer-firework-pulse {
    0%, 100% { opacity: 0.38; background-position: 0 0, 0 0, 0 0, 0 0; }
    50% { opacity: 0.64; background-position: 32px -16px, -32px 16px, 16px 0, 0 16px; }
}

@keyframes summer-pixel-drift {
    from { background-position: 0 0, 0 0, 0 0; }
    to { background-position: 42px 18px, -36px 24px, 0 0; }
}

@keyframes summer-page-pixel-scroll {
    from { background-position: 0 0, 19px 19px, 0 0, 0 0; }
    to { background-position: 76px 38px, -57px 57px, 38px 0, 0 38px; }
}

@keyframes summer-pixel-rain {
    from { background-position: 5vw -120px, calc(100% - 6vw) 80px; }
    to { background-position: 5vw 120px, calc(100% - 6vw) -160px; }
}

@keyframes summer-pixel-burst {
    0%, 10% { opacity: 0; transform: translateY(58px) scale(0.18); }
    16% { opacity: 0.82; transform: translateY(0) scale(0.24); }
    24% { opacity: 0.88; transform: translateY(0) scale(0.72); }
    34% { opacity: 0.68; transform: translateY(0) scale(1.08); }
    46%, 100% { opacity: 0; transform: translateY(0) scale(1.42); }
}

@keyframes summer-pixel-rocket {
    0% { opacity: 0; transform: translateY(62px) scaleY(0.2); }
    8% { opacity: 0.66; transform: translateY(28px) scaleY(0.7); }
    16% { opacity: 0; transform: translateY(0) scaleY(0.12); }
    100% { opacity: 0; }
}

@keyframes summer-gear-turn {
    from { transform: rotate(0deg) scale(1.04); }
    to { transform: rotate(360deg) scale(1.04); }
}

@keyframes summer-gear-clockwise {
    to { transform: rotate(360deg); }
}

@keyframes summer-gear-counter {
    to { transform: rotate(-360deg); }
}

@keyframes summer-engine-drift {
    from { background-position: 0 0, 0 0, 0 0; }
    to { background-position: 56px 0, 0 56px, 106px -106px; }
}

@keyframes summer-chain-climb {
    from { background-position: 0 0, 0 0; }
    to { background-position: 0 -46px, 0 0; }
}

@keyframes summer-pressure-rise {
    0%, 100% { --engine-pressure: 22%; }
    50% { --engine-pressure: 82%; }
}

@keyframes summer-drive-belt {
    to { background-position: 58px 0; }
}

@keyframes summer-piston-stroke {
    0%, 100% { transform: rotate(10deg) translateX(-22px); }
    50% { transform: rotate(10deg) translateX(28px); }
}

@keyframes summer-engine-spark {
    0%, 72%, 100% { opacity: 0; transform: translateY(12px) scale(0.3); }
    78% { opacity: 0.9; transform: translateY(0) scale(1); }
    90% { opacity: 0; transform: translateY(-20px) scale(1.5); }
}

@keyframes summer-data-grid {
    from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0; }
    to { background-position: 64px 0, 0 64px, 128px 0, 0 128px, 96px 96px; }
}

@keyframes summer-data-scan {
    0%, 100% { transform: translateY(-22%); }
    50% { transform: translateY(22%); }
}

@keyframes summer-data-link {
    0%, 100% { opacity: 0.18; filter: saturate(0.8); }
    50% { opacity: 0.48; filter: saturate(1.35); }
}

@keyframes summer-data-node {
    0% { box-shadow: 0 0 0 0 currentColor; }
    65%, 100% { box-shadow: 0 0 0 13px transparent; }
}

@keyframes summer-data-packet {
    0% { left: 0; opacity: 0; transform: scale(0.55); }
    12% { opacity: 1; }
    88% { opacity: 1; }
    100% { left: calc(100% - 8px); opacity: 0; transform: scale(1.2); }
}

@keyframes summer-data-ticker {
    from { transform: translateX(0); }
    to { transform: translateX(9%); }
}

@keyframes summer-data-wave {
    from { transform: translateX(0); }
    to { transform: translateX(-87px); }
}

@keyframes summer-blueprint-drift {
    from { background-position: 0 0, 0 0, 0 0, 0 0, 0 0; }
    to { background-position: 72px 36px, -36px 72px, 144px 0, 0 -144px, 118px -59px; }
}

@keyframes summer-paper-shift {
    0%, 100% { transform: translateX(-1.5%) rotate(-0.25deg); }
    50% { transform: translateX(1.5%) rotate(0.25deg); }
}

@keyframes summer-component-assemble {
    0%, 12%, 100% { opacity: 0.08; transform: translate(var(--piece-x), var(--piece-y)) rotate(var(--piece-r)); }
    28% { opacity: 0.32; transform: translate(3px, -2px) rotate(1deg); }
    34%, 72% { opacity: 0.38; transform: translate(0, 0) rotate(0); }
    78% { opacity: 0.46; transform: translate(2px, 1px) rotate(-0.5deg); }
    86% { opacity: 0.12; transform: translate(var(--piece-x), var(--piece-y)) rotate(var(--piece-r)); }
}

@keyframes summer-seam-stitch {
    from { background-position: 0 0; }
    to { background-position: 112px 0; }
}

@keyframes summer-blueprint-orbit {
    from { transform: rotate(0deg) scale(0.96); }
    50% { transform: rotate(180deg) scale(1.04); }
    to { transform: rotate(360deg) scale(0.96); }
}

/* The discovery module is shared with legacy dark pages. These overrides keep
   its related-work module legible and visibly separated on editorial pages. */
.editorial-page .fd-related {
    margin-top: 4.5rem;
    padding-top: 2rem;
    border-top-color: var(--editorial-rule-strong);
}

.editorial-page .fd-related__eyebrow {
    color: var(--editorial-blue);
}

.editorial-page .fd-related__heading {
    color: var(--editorial-ink);
    font-family: var(--editorial-serif);
}

.editorial-page .fd-related__grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1rem;
    margin: 0;
    padding: 0;
    list-style: none;
}

.editorial-page .fd-related-card {
    min-width: 0;
    height: auto;
    margin: 0;
    padding: 0;
    list-style: none;
}

.editorial-page .fd-related-card__link {
    min-width: 0;
    min-height: 100%;
    padding: 1.1rem;
    color: var(--editorial-ink);
    background: var(--editorial-paper-bright);
    border: 1px solid var(--editorial-rule);
    border-radius: 0;
    box-shadow: none;
}

.editorial-page .fd-related-card__link:hover {
    color: var(--editorial-ink);
    background: #f5f7f5;
    border-color: var(--editorial-blue);
    transform: none;
}

.editorial-page .fd-related-card__meta {
    color: var(--editorial-muted);
}

.editorial-page .fd-related-card__title {
    color: var(--editorial-ink);
    overflow-wrap: anywhere;
}

.editorial-page .fd-related-card__summary {
    color: var(--editorial-ink-soft);
    overflow-wrap: anywhere;
}

@media (max-width: 980px) {
    .summer-theme-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .editorial-page .fd-related__grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 820px) {
    .summer-tracker-page .tracker-card-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 700px) {
    .summer-competition-page .summer-hero-visual img {
        min-height: 0;
        max-height: none;
        aspect-ratio: 3 / 2;
    }

    .summer-tracker-page .summer-tracker-art img {
        aspect-ratio: 3 / 2;
    }

    .summer-tracker-page .tracker-wrap {
        padding-top: 1.5rem;
    }

    .summer-tracker-page .tracker-directory {
        display: block;
        margin-bottom: 2.5rem;
    }

    .summer-tracker-page .tracker-directory__links {
        justify-content: flex-start;
        margin-top: 0.65rem;
    }

    .summer-tracker-page .tracker-participant {
        padding: 1.8rem 0 2.6rem;
    }

    .summer-tracker-page .tracker-card {
        grid-template-columns: 1fr;
    }

    .summer-tracker-page .tracker-thumb {
        width: 100%;
        height: 155px;
    }

    .summer-tracker-page .tracker-participant-count {
        margin-left: 0;
    }

    .summer-tracker-page .summer-motion-field {
        opacity: 0.82;
    }

    .summer-tracker-page .summer-motion-sprite:nth-child(n+5) {
        display: none;
    }

    .summer-tracker-page--week-1 .summer-motion-sprite {
        scale: 0.72;
    }

    .summer-tracker-page--week-2 .summer-motion-sprite:nth-child(1) {
        right: -48px;
        width: 132px;
        height: 132px;
    }

    .summer-tracker-page--week-2 .summer-motion-sprite:nth-child(2) {
        width: 100px;
        height: 100px;
    }

    .summer-tracker-page--week-2 .summer-motion-sprite:nth-child(3) {
        width: 68px;
        height: 68px;
    }

    .summer-tracker-page--week-2 .summer-motion-sprite:nth-child(4) {
        width: 210px;
    }

    .summer-tracker-page--week-3 .summer-motion-field::before {
        top: 5%;
        font-size: 0.55rem;
        opacity: 0.72;
    }

    .summer-tracker-page--week-4 .summer-motion-sprite:nth-child(1) {
        --piece-w: 108px;
        --piece-h: 64px;
    }

    .summer-tracker-page--week-4 .summer-motion-sprite:nth-child(2) {
        --piece-w: 118px;
        --piece-h: 58px;
    }

    .summer-tracker-page--week-4 .summer-motion-sprite:nth-child(3) {
        --piece-w: 84px;
        --piece-h: 92px;
    }

    .summer-tracker-page--week-4 .summer-motion-sprite:nth-child(4) {
        --piece-w: 104px;
        --piece-h: 70px;
    }

    .editorial-page .fd-related__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .summer-theme-grid {
        grid-template-columns: 1fr;
    }

    .summer-theme-panel figcaption {
        min-height: 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    .summer-theme-panel img,
    .summer-tracker-page .tracker-hero::before,
    .summer-tracker-page .tracker-hero::after,
    .summer-tracker-page .summer-motion-field::before,
    .summer-tracker-page .summer-motion-field::after,
    .summer-tracker-page .summer-motion-sprite,
    .summer-tracker-page .summer-motion-sprite::before,
    .summer-tracker-page .summer-motion-sprite::after {
        animation: none !important;
        transition: none !important;
        transform: none !important;
    }

    .summer-tracker-page--week-1 .summer-motion-sprite {
        opacity: 0.14 !important;
        scale: 0.68 !important;
    }
}