:root {
    --bg-base: #050a14;
    --bg-card: rgba(255, 255, 255, 0.035);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --bg-surface: #0d1421;
    --border-subtle: rgba(255, 255, 255, 0.08);
    --text-primary: #ffffff;
    --text-muted: rgba(255, 255, 255, 0.5);
    --text-dim: rgba(255, 255, 255, 0.32);
    --radius-card: 16px;
    --radius-pill: 999px;
    --transition: 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    /* — Couleurs de rareté — */
    --common-color: #b9bec7;
    --common-bg: rgba(185, 190, 199, 0.14);
    --rare-color: #4d8dfb;
    --rare-bg: rgba(77, 141, 251, 0.16);
    --epic-color: #b24bf3;
    --epic-bg: rgba(178, 75, 243, 0.16);
    --legendary-color: #f0832b;
    --legendary-bg: rgba(240, 131, 43, 0.16);
    --mythic-color: #e8c440;
    --mythic-bg: rgba(232, 196, 64, 0.16);

    /* — Possession — */
    --owned-color: #2bd576;
    --owned-bg: rgba(43, 213, 118, 0.14);
}

* {
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    margin: 0;
    background-color: var(--bg-base, #050a14);
    color: var(--text-primary, #fff);
}

.rarity-common {
    color: var(--common-color);
}

.rarity-rare {
    color: var(--rare-color);
}

.rarity-epic {
    color: var(--epic-color);
}

.rarity-legendary {
    color: var(--legendary-color);
}

.rarity-mythic {
    color: var(--mythic-color);
}

.rarity-common-bg {
    background: var(--common-bg);
    color: var(--common-color);
}

.rarity-rare-bg {
    background: var(--rare-bg);
    color: var(--rare-color);
}

.rarity-epic-bg {
    background: var(--epic-bg);
    color: var(--epic-color);
}

.rarity-legendary-bg {
    background: var(--legendary-bg);
    color: var(--legendary-color);
}

.rarity-mythic-bg {
    background: var(--mythic-bg);
    color: var(--mythic-color);
}

.container-sprites {
    width: 90%;
    max-width: 1400px;
    margin: 140px auto 60px;
}

.sprites-header {
    text-align: center;
    margin-bottom: 28px;
}

.sprites-title {
    text-transform: uppercase;
    font-size: clamp(26px, 3vw, 36px);
    letter-spacing: 0.04em;
    margin: 0 0 8px;
}

.sprites-subtitle {
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 300;
    margin: 0;
}

.sprites-progress {
    margin: 10px 0 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--owned-color);
}

.sprites-filters-owned {
    margin-top: -16px;
    margin-bottom: 32px;
}

.sprites-filter[data-owned-filter="owned"].active {
    background: var(--owned-bg);
    border-color: var(--owned-color);
    color: var(--owned-color);
}

.sprites-filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 32px;
}

.sprites-filter {
    appearance: none;
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: var(--transition);
}

.sprites-filter:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.sprites-filter.active {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--text-primary);
}

.sprites-filter.rarity-rare.active {
    background: var(--rare-bg);
    border-color: var(--rare-color);
}

.sprites-filter.rarity-epic.active {
    background: var(--epic-bg);
    border-color: var(--epic-color);
}

.sprites-filter.rarity-legendary.active {
    background: var(--legendary-bg);
    border-color: var(--legendary-color);
}

.sprites-filter.rarity-mythic.active {
    background: var(--mythic-bg);
    border-color: var(--mythic-color);
}

.sprites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 16px;
}

.sprite-card {
    appearance: none;
    border: 8px solid transparent;
    background: var(--bg-card);
    border-radius: var(--radius-card);
    padding: 14px 10px 16px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    animation: spriteFadeIn 0.4s ease backwards;
}

.sprite-card:hover {
    border: 3px solid var(--border-subtle);
}

.sprite-card:hover,
.sprite-card:focus-visible {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-3px);
    outline: none;
}

.sprite-card.is-owned {
    background: var(--owned-bg);
    border-color: rgba(43, 213, 118, 0.4);
}

.sprite-card-img {
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--bg-surface);
}

.sprite-card-owned {
    position: absolute;
    top: 6px;
    left: 6px;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    background: rgba(5, 10, 20, 0.55);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
}

.sprite-card-owned::after {
    content: "✓";
    font-size: 12px;
    font-weight: 700;
    color: transparent;
    transition: var(--transition);
}

.sprite-card-owned:hover {
    border-color: rgba(255, 255, 255, 0.6);
}

.sprite-card-owned.is-owned {
    background: var(--owned-color);
    border-color: var(--owned-color);
}

.sprite-card-owned.is-owned::after {
    color: #04130a;
}

.sprite-card-img::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.03);
    opacity: 0.35;
}

.sprite-card-img img {
    width: 78%;
    height: 78%;
    object-fit: contain;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 10px rgba(0, 0, 0, 0.45));
    transition: var(--transition);
}

.sprite-card:hover .sprite-card-img img {
    transform: scale(1.06);
}

.sprite-card-infos {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.sprite-card-name {
    margin: 0;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    text-align: center;
    line-height: 1.3;
}

.sprite-card-rarity-tag {
    font-size: 10px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
}

.sprites-empty {
    text-align: center;
    color: var(--text-dim);
    font-size: 14px;
    margin-top: 40px;
}

@keyframes spriteFadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (prefers-reduced-motion: reduce) {
    .sprite-card {
        animation: none;
    }
}

.sprite-popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(2, 5, 10, 0.7);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: 1000;
}

.sprite-popup-overlay.is-visible {
    opacity: 1;
}

.sprite-popup-card {
    position: relative;
    width: 100%;
    max-width: 560px;
    max-height: 88vh;
    overflow-y: auto;
    background: linear-gradient(165deg, rgba(20, 26, 41, 0.97), rgba(7, 11, 20, 0.97));
    border: 1px solid var(--border-subtle);
    border-radius: 22px;
    padding: 60px 32px;
    transform: translateY(16px) scale(0.98);
    opacity: 0;
    transition: transform 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.3s ease;
}

.sprite-popup-overlay.is-visible .sprite-popup-card {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.sprite-popup-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
}

.sprite-popup-close:hover,
.sprite-popup-close:focus-visible {
    background: rgba(255, 255, 255, 0.12);
    color: var(--text-primary);
    transform: rotate(90deg);
    outline: none;
}

.sprite-popup-body {
    display: flex;
    gap: 28px;
    align-items: center;
}

.sprite-popup-image {
    flex: 0 0 170px;
    aspect-ratio: 1 / 1;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.sprite-popup-image img {
    width: 78%;
    height: 78%;
    object-fit: contain;
    filter: drop-shadow(0 8px 18px rgba(0, 0, 0, 0.5));
}

.sprite-popup-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
    min-width: 0;
}

.sprite-popup-title {
    margin: 0;
    font-size: 22px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    line-height: 1.25;
}

.sprite-popup-description {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.78);
}

.sprite-popup-description.is-fallback {
    font-style: italic;
    color: var(--text-muted);
}

.sprite-popup-owned-toggle {
    appearance: none;
    align-self: flex-start;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    font-family: 'Poppins', sans-serif;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.sprite-popup-owned-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

.sprite-popup-owned-toggle.is-owned {
    background: var(--owned-bg);
    border-color: var(--owned-color);
    color: var(--owned-color);
}

.sprite-popup-id {
    margin: 4px 0 0;
    padding-top: 12px;
    border-top: 1px solid var(--border-subtle);
    font-size: 11px;
    color: var(--text-dim);
}

.sprite-popup-id span {
    color: var(--text-muted);
    font-weight: 600;
    margin-right: 4px;
}

@media only screen and (max-width: 640px) {
    .container-sprites {
        width: 94%;
        margin: 110px auto 50px;
    }

    .sprites-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
        gap: 10px;
    }

    .sprite-card {
        padding: 10px 6px 12px;
        gap: 8px;
    }

    .sprite-card-name {
        font-size: 11.5px;
    }

    .sprite-card-rarity-tag {
        font-size: 9px;
        padding: 3px 8px;
    }

    .sprite-popup-card {
        padding: 22px 18px;
        border-radius: 18px;
    }

    .sprite-popup-close {
        top: 12px;
        right: 12px;
    }

    .sprite-popup-body {
        flex-direction: column;
        align-items: center;
        gap: 18px;
        margin-top: 8px;
    }

    .sprite-popup-image {
        flex: 0 0 auto;
        width: 50%;
        max-width: 180px;
    }

    .sprite-popup-info {
        text-align: center;
        align-items: center;
    }

    .sprite-popup-owned-toggle {
        align-self: center;
    }

    .sprite-popup-title {
        font-size: 18px;
    }

    .sprite-popup-description {
        font-size: 13px;
    }

    .sprite-popup-id {
        text-align: center;
    }
}

@media only screen and (min-width: 641px) and (max-width: 1024px) {
    .sprites-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    }
}