html.snow-mode #particle-canvas {
    display: block;
}

html[data-era="1998"].snow-mode #particle-canvas {
    display: block;
    opacity: 0.78;
    filter: none;
    mix-blend-mode: normal;
}

html.motion-reduced.snow-mode #particle-canvas,
html.motion-reduced[data-era="1998"].snow-mode #particle-canvas {
    display: block;
    opacity: 0.62;
}

/*==================================================
                COMPLETE WINTER THEME
==================================================*/

html.winter-mode {
    --winter-ice-white: rgba(236, 249, 255, 0.94);
    --winter-ice-soft: rgba(191, 232, 246, 0.78);
    --winter-ice-edge: rgba(133, 229, 239, 0.72);
    --winter-frost-panel: rgba(4, 17, 26, 0.78);
    --winter-frost-border: rgba(151, 231, 240, 0.48);
    --winter-frost-glow: rgba(92, 218, 231, 0.2);
    --winter-snow-cap-height: 22px;
    --winter-snow-cap-offset: -15px;
    --winter-snow-side-offset: 0px;
    --christmas-gold: #e7bd67;
    --christmas-gold-rgb: 231, 189, 103;
    --christmas-red: #8e2938;
    --christmas-red-rgb: 142, 41, 56;
    --christmas-green: #174f3d;
    --christmas-green-rgb: 23, 79, 61;
    --christmas-ice-blue: #91dff2;
    --christmas-ice-blue-rgb: 145, 223, 242;
    --winter-snow-mask: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20viewBox='0%200%201000%2032'%20preserveAspectRatio='none'%3E%3Cpath%20fill='%23000'%20d='M0%2027%20C18%2026%2035%2023%2056%2019%20C86%2017%20111%2018%20142%2014%20C168%2011%20177%205%20213%2010%20C253%2017%20286%2023%20328%2015%20C360%208%20392%207%20429%2016%20C462%2024%20502%2021%20539%2017%20C577%2013%20601%203%20646%207%20C691%2011%20713%2024%20757%2021%20C801%2018%20828%206%20872%2010%20C914%2014%20944%2018%20966%2022%20C982%2024%20992%2026%201000%2027%20C982%2028%20964%2030%20936%2031%20L64%2031%20C36%2030%2018%2028%200%2027%20Z'/%3E%3C/svg%3E");
}

/* Modern DARIO.exe keeps its dark terminal identity, but cools down. */
html.winter-mode:not([data-era="1998"]) {
    --color-background: #02080f;
    --color-accent: #78f4e0;
    --color-accent-rgb: 120, 244, 224;
    --color-white: #f3fbff;
    --color-text-light: #d6e8ee;
    --color-text-muted: #9db6c0;
    --color-text-dark: #66818c;
}

html.winter-mode:not([data-era="1998"]) body {
    background-color: var(--color-background);
    background-image:
        radial-gradient(
            ellipse at 16% 20%,
            rgba(91, 199, 220, 0.1),
            transparent 38%
        ),
        radial-gradient(
            ellipse at 82% 58%,
            rgba(152, 232, 244, 0.07),
            transparent 42%
        ),
        linear-gradient(
            145deg,
            #01050a 0%,
            #05131d 48%,
            #02080f 100%
        );
}

html.winter-mode:not([data-era="1998"]) .matrix-background {
    background:
        radial-gradient(
            circle at 50% 38%,
            rgba(98, 225, 235, 0.11),
            transparent 54%
        ),
        radial-gradient(
            ellipse at 18% 72%,
            rgba(202, 243, 255, 0.045),
            transparent 38%
        );
}

html.winter-mode:not([data-era="1998"]) #matrix-canvas {
    opacity: 0.19;
    filter: blur(1.5px) saturate(0.84) brightness(1.12);
}

html.winter-mode:not([data-era="1998"]) .hero-overlay {
    background:
        radial-gradient(
            circle at center,
            rgba(var(--color-accent-rgb), 0.11),
            transparent 48%
        ),
        linear-gradient(
            to bottom,
            rgba(6, 23, 34, 0.08),
            rgba(1, 7, 13, 0.58)
        );
}

html.winter-mode:not([data-era="1998"]) .site-header {
    border-bottom-color: var(--winter-frost-border);
    background:
        linear-gradient(
            180deg,
            rgba(14, 35, 46, 0.91),
            rgba(2, 10, 16, 0.88)
        );
    box-shadow:
        inset 0 1px 0 rgba(235, 250, 255, 0.32),
        0 5px 22px rgba(70, 201, 219, 0.12);
    backdrop-filter: blur(11px) saturate(1.08);
}

html.winter-mode:not([data-era="1998"]) :where(
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
) {
    border-color: var(--winter-frost-border);
    background-color: var(--winter-frost-panel);
    background-image:
        linear-gradient(
            135deg,
            rgba(237, 250, 255, 0.065),
            transparent 24%
        ),
        radial-gradient(
            circle at 88% 12%,
            rgba(var(--color-accent-rgb), 0.065),
            transparent 34%
        );
    box-shadow:
        inset 0 1px 0 rgba(238, 251, 255, 0.22),
        inset 0 0 24px rgba(123, 218, 234, 0.035),
        0 0 24px var(--winter-frost-glow);
    backdrop-filter: blur(7px) saturate(1.03);
}

html.winter-mode:not([data-era="1998"]) :where(
    .project-terminal,
    .status-badge,
    .skill-status,
    .project-status,
    .project-action-button,
    .hero-button,
    .contact-button,
    .language-switcher,
    .era-switcher
) {
    border-color: rgba(156, 233, 241, 0.5);
    background-color: rgba(8, 25, 35, 0.7);
    box-shadow:
        inset 0 1px 0 rgba(238, 251, 255, 0.12),
        0 0 14px rgba(82, 211, 226, 0.09);
}

html.winter-mode:not([data-era="1998"]) .contact-form :where(
    input,
    textarea
) {
    border-color: rgba(150, 226, 237, 0.38);
    background: rgba(2, 11, 18, 0.82);
    color: var(--color-white);
    box-shadow: inset 0 1px 12px rgba(174, 231, 242, 0.04);
}

html.winter-mode:not([data-era="1998"]) .nav-menu {
    background:
        linear-gradient(
            180deg,
            rgba(10, 29, 39, 0.98),
            rgba(2, 9, 15, 0.99)
        );
}

/*==================================================
              CYBER CHRISTMAS DETAILS
==================================================*/

.holiday-lights,
.holiday-system-init {
    display: none;
}

html.winter-mode .holiday-lights {
    position: absolute;
    right: 11%;
    bottom: -30px;
    left: 11%;
    z-index: 6;
    display: block;
    height: 37px;
    pointer-events: none;
}

html.winter-mode .holiday-light-cable {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    display: block;
    width: 100%;
    height: 20px;
    overflow: visible;
}

html.winter-mode :where(
    .holiday-cable-shadow,
    .holiday-cable-line,
    .holiday-cable-pixel
) {
    fill: none;
    vector-effect: non-scaling-stroke;
}

html.winter-mode .holiday-cable-shadow {
    stroke: rgba(0, 0, 0, 0.92);
    stroke-width: 3.4;
}

html.winter-mode .holiday-cable-line {
    stroke: rgba(75, 93, 92, 0.96);
    stroke-width: 1.35;
    filter: drop-shadow(
        0 1px 1px rgba(var(--christmas-gold-rgb), 0.09)
    );
}

html.winter-mode .holiday-cable-pixel {
    display: none;
}

html.winter-mode .holiday-light {
    position: absolute;
    top: calc(var(--holiday-cable-y) + 8px);
    left: var(--holiday-led-x);
    z-index: 2;
    display: block;
    width: 8px;
    height: 12px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 44% 44% 68% 68% / 34% 34% 76% 76%;
    background:
        radial-gradient(
            circle at 50% 24%,
            rgba(255, 255, 255, 0.96) 0 9%,
            rgba(255, 255, 255, 0.3) 18%,
            transparent 39%
        ),
        currentColor;
    opacity: 0.12;
    transform: translateX(-50%) scale(0.62);
    transform-origin: center top;
}

html.winter-mode .holiday-light::before {
    content: "";
    position: absolute;
    top: -8px;
    left: 50%;
    width: 1px;
    height: 6px;
    background: rgba(52, 67, 67, 0.98);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.24);
    transform: translateX(-50%);
}

html.winter-mode .holiday-light::after {
    content: "";
    position: absolute;
    top: -3px;
    left: 50%;
    width: 6px;
    height: 4px;
    border-radius: 1px 1px 0 0;
    background: linear-gradient(
        to right,
        #11191a,
        #485554 48%,
        #11191a
    );
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.7);
    transform: translateX(-50%);
}

html.winter-mode .holiday-light--gold {
    color: var(--christmas-gold);
    box-shadow:
        0 0 4px currentColor,
        0 0 12px rgba(var(--christmas-gold-rgb), 0.58);
}

html.winter-mode .holiday-light--red {
    color: var(--christmas-red);
    box-shadow:
        0 0 4px currentColor,
        0 0 11px rgba(var(--christmas-red-rgb), 0.48);
}

html.winter-mode .holiday-light--green {
    color: var(--christmas-green);
    box-shadow:
        0 0 4px currentColor,
        0 0 10px rgba(var(--christmas-green-rgb), 0.45);
}

html.winter-mode .holiday-light--ice {
    color: var(--christmas-ice-blue);
    box-shadow:
        0 0 4px currentColor,
        0 0 11px rgba(var(--christmas-ice-blue-rgb), 0.48);
}

html.winter-mode .holiday-lights.is-sequencing .holiday-light {
    animation: holidayLedStart 0.26s ease-out
        var(--holiday-led-delay) forwards;
}

html.winter-mode .holiday-lights.is-online .holiday-light {
    opacity: var(--holiday-led-opacity, 0.9);
    transform: translateX(-50%) scale(1);
    animation: holidayLedBreathe 5.2s ease-in-out
        var(--holiday-led-breathe-delay) infinite;
}

html.winter-mode .holiday-sprig {
    position: absolute;
    top: 0;
    z-index: 1;
    display: block;
    width: 43px;
    height: 13px;
    background:
        repeating-linear-gradient(
            67deg,
            transparent 0 4px,
            rgba(var(--christmas-green-rgb), 0.96) 4px 6px,
            transparent 6px 9px
        ),
        linear-gradient(
            7deg,
            transparent 43%,
            rgba(var(--christmas-green-rgb), 0.88) 44% 58%,
            transparent 59%
        );
    clip-path: polygon(0 48%, 100% 0, 82% 48%, 100% 100%);
    opacity: 0.88;
    pointer-events: none;
}

html.winter-mode .holiday-sprig::after {
    content: "";
    position: absolute;
    top: 1px;
    left: 8px;
    width: 25px;
    height: 3px;
    border-radius: 50%;
    background: rgba(238, 250, 255, 0.82);
    box-shadow: 8px 2px 0 rgba(210, 239, 246, 0.52);
}

html.winter-mode .holiday-sprig--start {
    left: -33px;
}

html.winter-mode .holiday-sprig--end {
    right: -33px;
    transform: scaleX(-1);
}

html.winter-mode .holiday-system-init {
    position: fixed;
    top: 88px;
    left: 50%;
    z-index: 1100;
    display: block;
    width: min(420px, calc(100vw - 32px));
    padding: 11px 14px;
    border: 1px solid rgba(var(--christmas-gold-rgb), 0.46);
    border-left: 3px solid var(--christmas-gold);
    border-radius: 3px;
    background: rgba(2, 12, 18, 0.94);
    box-shadow:
        0 0 20px rgba(var(--christmas-gold-rgb), 0.09),
        inset 0 1px 0 rgba(var(--christmas-ice-blue-rgb), 0.13);
    color: var(--winter-ice-soft);
    font: 700 0.66rem/1.55 monospace;
    letter-spacing: 0.055em;
    opacity: 0;
    transform: translate(-50%, -6px);
    transition:
        opacity 0.18s ease,
        transform 0.18s ease;
    pointer-events: none;
}

html.winter-mode .holiday-system-init.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

html.winter-mode .holiday-system-init p {
    margin: 0;
    opacity: 0;
}

html.winter-mode .holiday-system-init.is-visible p {
    animation: holidaySystemLine 1.25s ease-out forwards;
}

html.winter-mode .holiday-system-init.is-visible p:nth-child(2) {
    animation-delay: 0.14s;
}

html.winter-mode .holiday-system-init.is-visible p:nth-child(3) {
    animation-delay: 0.28s;
}

html.winter-mode .holiday-system-init.is-visible p:nth-child(4) {
    animation-delay: 0.42s;
}

html.winter-mode .holiday-system-init.is-visible p:nth-child(5) {
    color: var(--christmas-gold);
    animation-delay: 0.56s;
}

html.winter-mode:not([data-era="1998"]) .project-card {
    border-top-color: rgba(var(--christmas-gold-rgb), 0.62);
    box-shadow:
        inset 0 1px 0 rgba(var(--christmas-gold-rgb), 0.16),
        0 -2px 13px rgba(var(--christmas-gold-rgb), 0.045),
        0 0 24px var(--winter-frost-glow);
}

html.winter-mode:not([data-era="1998"])
    .project-card .project-status {
    border-color: rgba(var(--christmas-gold-rgb), 0.43);
    box-shadow: 0 0 10px rgba(var(--christmas-gold-rgb), 0.08);
}

html.winter-mode:not([data-era="1998"])
    .project-card .project-tech-tag:first-child {
    border-color: rgba(var(--christmas-gold-rgb), 0.58);
    color: var(--christmas-gold);
}

html.winter-mode:not([data-era="1998"]) .project-terminal {
    border-left-color: var(--christmas-red);
    box-shadow: inset 3px 0 0 rgba(var(--christmas-gold-rgb), 0.1);
}

@keyframes holidayLedStart {
    0% {
        opacity: 0.1;
        transform: translateX(-50%) scale(0.62);
        filter: brightness(0.62);
    }

    68% {
        opacity: 1;
        transform: translateX(-50%) scale(1.1);
        filter: brightness(1.18);
    }

    100% {
        opacity: var(--holiday-led-opacity, 0.9);
        transform: translateX(-50%) scale(1);
        filter: brightness(1);
    }
}

@keyframes holidayLedBreathe {
    0%,
    100% {
        filter: brightness(0.86);
    }

    50% {
        filter: brightness(1.16);
    }
}

@keyframes holidaySystemLine {
    0% {
        opacity: 0;
        transform: translateX(-5px);
    }

    24%,
    82% {
        opacity: 1;
        transform: translateX(0);
    }

    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Simulated accumulation: one lightweight CSS layer per major surface. */
html.winter-mode :where(
    .about-image-wrapper,
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
) {
    position: relative;
    isolation: isolate;
    overflow: visible;
    --winter-local-snow-height: var(--winter-snow-cap-height);
    --winter-snow-flip: 1;
}

/* Keep the existing card highlights contained after opening the snow edge. */
html.winter-mode .skill-card::before,
html.winter-mode .project-card::before {
    inset: 0;
    width: 100%;
    height: 100%;
    border-radius: inherit;
    opacity: 0;
    transform: none;
    transition: opacity 0.5s ease;
}

html.winter-mode .skill-card:hover::before,
html.winter-mode .project-card:hover::before {
    top: 0;
    left: 0;
    opacity: 1;
    transform: none;
}

html.winter-mode .about-image-wrapper > img {
    border-radius: inherit;
}

/* Mirrored and differently sized variants keep neighbouring cards distinct. */
html.winter-mode :where(
    .stat-card:nth-child(even),
    .skill-card:nth-child(even),
    .devlog-summary-card:nth-child(even),
    .devlog-entry:nth-child(even) .devlog-entry-card
) {
    --winter-snow-flip: -1;
}

html.winter-mode :where(
    .stat-card:nth-child(2),
    .skill-card:nth-child(3n + 2),
    .devlog-summary-card:nth-child(3n + 2),
    .devlog-entry:nth-child(3n + 2) .devlog-entry-card
) {
    --winter-local-snow-height: calc(
        var(--winter-snow-cap-height) - 3px
    );
}

html.winter-mode :where(
    .stat-card:nth-child(3),
    .skill-card:nth-child(3n),
    .devlog-summary-card:nth-child(3n),
    .devlog-entry:nth-child(3n) .devlog-entry-card
) {
    --winter-local-snow-height: calc(
        var(--winter-snow-cap-height) + 2px
    );
}

html.winter-mode :where(
    .about-image-wrapper,
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
)::after {
    content: "";
    position: absolute;
    top: var(--winter-snow-cap-offset);
    left: var(--winter-snow-side-offset);
    right: var(--winter-snow-side-offset);
    z-index: 5;
    width: auto;
    height: var(--winter-local-snow-height);
    background:
        radial-gradient(
            ellipse at 16% 16%,
            rgba(255, 255, 255, 0.98) 0 8%,
            transparent 26%
        ),
        radial-gradient(
            ellipse at 63% 8%,
            rgba(255, 255, 255, 0.84) 0 7%,
            transparent 24%
        ),
        linear-gradient(
            to bottom,
            var(--winter-ice-white) 0 34%,
            rgba(225, 247, 252, 0.96) 58%,
            rgba(152, 211, 229, 0.9) 100%
        );
    background-repeat: no-repeat;
    -webkit-mask-image: var(--winter-snow-mask);
    mask-image: var(--winter-snow-mask);
    -webkit-mask-position: center;
    mask-position: center;
    -webkit-mask-repeat: no-repeat;
    mask-repeat: no-repeat;
    -webkit-mask-size: 100% 100%;
    mask-size: 100% 100%;
    filter:
        drop-shadow(0 3px 3px rgba(76, 156, 181, 0.34))
        drop-shadow(0 0 5px rgba(225, 248, 255, 0.2));
    opacity: 1;
    transform:
        scaleX(var(--winter-snow-flip))
        scaleY(0.18);
    transform-origin: center top;
    animation: winterSnowAccumulate 30s ease-out forwards;
    pointer-events: none;
}

@keyframes winterSnowAccumulate {
    0% {
        opacity: 0.42;
        transform:
            scaleX(var(--winter-snow-flip))
            scaleY(0.18);
    }

    38% {
        opacity: 0.78;
        transform:
            scaleX(var(--winter-snow-flip))
            scaleY(0.58);
    }

    100% {
        opacity: 1;
        transform:
            scaleX(var(--winter-snow-flip))
            scaleY(1);
    }
}

/*==================================================
                WIN98 WINTER VARIANT
==================================================*/

html.winter-mode[data-era="1998"] {
    --era-retro-window: #c7d2d9;
    --era-retro-window-light: #f7fcff;
    --era-retro-window-mid: #8498a5;
    --era-retro-window-dark: #3d5361;
    --era-retro-title: #174b73;
    --era-retro-ink: #07131c;
    --era-retro-desktop: #356f88;
    --era-retro-screen: #061b2b;
    --era-retro-matrix: #d8f4ff;
    --era-retro-accent: #ffffff;
    --era-retro-accent-rgb: 255, 255, 255;
    --christmas-gold: #a97718;
    --christmas-gold-rgb: 169, 119, 24;
    --christmas-red: #821d2d;
    --christmas-red-rgb: 130, 29, 45;
    --christmas-green: #174b73;
    --christmas-green-rgb: 23, 75, 115;
    --christmas-ice-blue: #b8e6f2;
    --christmas-ice-blue-rgb: 184, 230, 242;
    --winter-snow-cap-height: 15px;
    --winter-snow-cap-offset: -10px;
}

html.winter-mode[data-era="1998"] .footer-version {
    opacity: 1;
}

html.winter-mode[data-era="1998"] body {
    background-color: var(--era-retro-desktop);
    background-image:
        linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.025) 50%,
            transparent 50%
        ),
        linear-gradient(
            rgba(255, 255, 255, 0.025) 50%,
            transparent 50%
        );
    background-size: 8px 8px;
}

html.winter-mode[data-era="1998"] .matrix-background {
    background: radial-gradient(
        circle at center,
        rgba(220, 247, 255, 0.08),
        transparent 68%
    );
}

html.winter-mode[data-era="1998"] #matrix-canvas {
    opacity: 0.32;
    filter: none;
    mix-blend-mode: multiply;
}

html.winter-mode[data-era="1998"] :where(
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
) {
    border-top-color: var(--era-retro-window-light);
    border-left-color: var(--era-retro-window-light);
    border-right-color: var(--era-retro-window-dark);
    border-bottom-color: var(--era-retro-window-dark);
    background: rgba(6, 27, 43, 0.95);
    box-shadow:
        3px 3px 0 rgba(3, 15, 24, 0.72),
        inset 0 0 0 1px var(--era-retro-window-mid);
    backdrop-filter: none;
}

html.winter-mode[data-era="1998"] :where(
    .holiday-cable-shadow,
    .holiday-cable-line
) {
    display: none;
}

html.winter-mode[data-era="1998"] .holiday-cable-pixel {
    display: block;
    stroke: var(--era-retro-window-dark);
    stroke-width: 2;
    shape-rendering: crispEdges;
}

html.winter-mode[data-era="1998"] .holiday-light {
    width: 6px;
    height: 8px;
    border: 1px solid var(--era-retro-ink);
    border-radius: 0;
    background: currentColor;
    box-shadow: 1px 1px 0 var(--era-retro-window-dark);
}

html.winter-mode[data-era="1998"] .holiday-light::before {
    top: -6px;
    left: 50%;
    width: 1px;
    height: 4px;
    background: var(--era-retro-window-dark);
    box-shadow: none;
    transform: translateX(-50%);
}

html.winter-mode[data-era="1998"] .holiday-light::after {
    top: -2px;
    left: 50%;
    width: 5px;
    height: 3px;
    border-radius: 0;
    background: var(--era-retro-window-dark);
    box-shadow: none;
    transform: translateX(-50%);
}

html.winter-mode[data-era="1998"] .holiday-sprig {
    height: 11px;
    background: var(--christmas-green);
    clip-path: polygon(
        0 45%, 14% 45%, 14% 27%, 34% 27%, 34% 9%,
        57% 9%, 57% 27%, 78% 27%, 78% 45%, 100% 45%,
        100% 64%, 78% 64%, 78% 82%, 57% 82%, 57% 100%,
        34% 100%, 34% 82%, 14% 82%, 14% 64%, 0 64%
    );
    opacity: 1;
}

html.winter-mode[data-era="1998"] .holiday-sprig::after {
    top: 0;
    left: 13px;
    width: 14px;
    height: 2px;
    border-radius: 0;
    background: var(--era-retro-window-light);
    box-shadow: 8px 2px 0 var(--era-retro-window-light);
}

html.winter-mode[data-era="1998"] .holiday-system-init {
    border: 2px solid;
    border-color:
        var(--era-retro-window-light)
        var(--era-retro-window-dark)
        var(--era-retro-window-dark)
        var(--era-retro-window-light);
    border-radius: 0;
    background: var(--era-retro-window);
    box-shadow: 3px 3px 0 var(--era-retro-window-dark);
    color: var(--era-retro-ink);
}

html.winter-mode[data-era="1998"]
    .holiday-system-init.is-visible p:nth-child(5) {
    color: var(--era-retro-title);
}

html.winter-mode[data-era="1998"]
    .project-card .project-tech-tag:first-child {
    border-color: var(--christmas-gold);
    color: var(--christmas-gold);
}

html.winter-mode[data-era="1998"] .project-terminal {
    border-left: 4px solid var(--christmas-red);
}

html.winter-mode[data-era="1998"] :where(
    .about-image-wrapper,
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
)::after {
    height: var(--winter-local-snow-height);
    -webkit-mask-image: none;
    mask-image: none;
    background: linear-gradient(
        to bottom,
        #ffffff 0 34%,
        var(--era-retro-window-light) 34% 58%,
        #a9cfdd 58% 100%
    );
    clip-path: polygon(
        0 78%, 2% 78%, 2% 62%, 5% 62%, 5% 44%,
        10% 44%, 10% 26%, 16% 26%, 16% 38%, 22% 38%,
        22% 56%, 29% 56%, 29% 20%, 37% 20%, 37% 42%,
        43% 42%, 43% 32%, 51% 32%, 51% 58%, 58% 58%,
        58% 16%, 66% 16%, 66% 28%, 73% 28%, 73% 50%,
        81% 50%, 81% 36%, 87% 36%, 87% 24%, 93% 24%,
        93% 46%, 96% 46%, 96% 62%, 98% 62%, 98% 78%,
        100% 78%, 98% 84%, 96% 84%, 96% 92%, 92% 92%,
        92% 100%, 8% 100%, 8% 92%, 4% 92%, 4% 84%,
        2% 84%
    );
    filter: none;
    animation: winterSnowAccumulate 30s steps(6, end) forwards;
}

@media (max-width: 900px) {
    html.winter-mode .holiday-lights {
        right: 5%;
        bottom: -38px;
        left: 5%;
        height: 37px;
    }
}

@media (max-width: 700px) {
    html.winter-mode {
        --winter-snow-cap-height: 17px;
        --winter-snow-cap-offset: -12px;
    }

    html.winter-mode[data-era="1998"] {
        --winter-snow-cap-height: 12px;
        --winter-snow-cap-offset: -8px;
    }

    html.winter-mode:not([data-era="1998"]) :where(
        .stat-card,
        .skill-card,
        .project-card,
        .contact-form,
        .devlog-summary-card,
        .devlog-entry-card
    ) {
        backdrop-filter: blur(4px);
    }

    html.winter-mode .holiday-lights {
        right: 5%;
        bottom: -34px;
        left: 5%;
        height: 34px;
    }

    html.winter-mode .holiday-light:nth-of-type(4n + 3) {
        display: none;
    }

    html.winter-mode .holiday-sprig--end {
        display: none;
    }

    html.winter-mode .holiday-sprig--start {
        left: -13px;
        transform: scale(0.8);
        transform-origin: left center;
    }

    html.winter-mode .holiday-system-init {
        top: 76px;
        width: min(350px, calc(100vw - 24px));
        padding: 9px 11px;
        font-size: 0.59rem;
    }

}

html.motion-reduced.winter-mode .holiday-system-init {
    display: none;
    transition: none;
}

html.motion-reduced.winter-mode
.holiday-lights.is-online .holiday-light,
html.motion-reduced.winter-mode
.holiday-lights.is-sequencing .holiday-light {
    animation: none;
    opacity: var(--holiday-led-opacity, 0.9);
    transform: translateX(-50%) scale(1);
    filter: none;
}

html.motion-reduced.winter-mode :where(
    .about-image-wrapper,
    .stat-card,
    .skill-card,
    .project-card,
    .contact-form,
    .devlog-summary-card,
    .devlog-entry-card,
    .devlog-next,
    .privacy-card,
    .error-terminal
)::after {
    animation: none;
    opacity: 0.9;
    transform:
        scaleX(var(--winter-snow-flip))
        scaleY(0.82);
}