* {
    box-sizing: border-box;
}

:root {
    --bg: #f7f2ea;
    --bg-soft: #fffaf3;
    --mint: #bfeadf;
    --mint-deep: #77cbb5;
    --pink: #ffc9d7;
    --lavender: #cec6ff;
    --blue: #9ed4ff;
    --yellow: #ffe596;
    --orange: #ffb86c;
    --ink: #4d4566;
    --ink-soft: #6f6792;
    --white: #fffdf8;
    --danger: #ff8b8b;
    --success: #7bdc97;
    --shadow: #b9b1cd;
    --card-size: 84px;
}

html, body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: "Courier New", "Lucida Console", monospace;
    color: var(--ink);
    background:
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.95), transparent 30%),
        radial-gradient(circle at 85% 10%, rgba(255, 229, 150, 0.55), transparent 20%),
        radial-gradient(circle at 10% 90%, rgba(191, 234, 223, 0.8), transparent 25%),
        linear-gradient(180deg, #f8f3ee 0%, #eef7fb 55%, #f7f2ea 100%);
    overflow-x: hidden;
    text-align: center;
}

body::before,
body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: -1;
}

body::before {
    background-image:
        linear-gradient(rgba(255,255,255,0.35) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.35) 1px, transparent 1px);
    background-size: 22px 22px;
    opacity: 0.45;
}

body::after {
    background:
        radial-gradient(circle, rgba(255,255,255,0.9) 0 2px, transparent 3px) 8% 12% / 120px 120px,
        radial-gradient(circle, rgba(255,214,226,0.8) 0 2px, transparent 3px) 65% 18% / 160px 160px,
        radial-gradient(circle, rgba(191,234,223,0.85) 0 2px, transparent 3px) 30% 75% / 140px 140px,
        radial-gradient(circle, rgba(255,230,150,0.8) 0 2px, transparent 3px) 80% 82% / 150px 150px;
    animation: drift 16s linear infinite;
    opacity: 0.65;
}

@keyframes drift {
    from { transform: translateY(0); }
    to { transform: translateY(18px); }
}

.page-shell {
    width: min(1080px, calc(100vw - 24px));
    margin: 0 auto;
    padding: 24px 0 36px;
}

.hud {
    display: grid;
    grid-template-columns: 180px 1fr 180px;
    gap: 16px;
    align-items: center;
    margin-bottom: 18px;
}

.hud-card,
.panel,
.slot-shell,
.overlay-card,
.card,
#slot-area {
    background: var(--white);
    border: 4px solid var(--ink);
    box-shadow: 0 8px 0 var(--shadow);
}

.hud-card {
    min-height: 98px;
    padding: 14px 16px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-radius: 16px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(247,242,234,0.95));
}

.hud-label {
    font-size: 14px;
    letter-spacing: 1px;
    color: var(--ink-soft);
    margin-bottom: 8px;
}

.hud-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--ink);
}

.title-block {
    padding: 14px 18px;
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(206,198,255,0.22)),
        linear-gradient(90deg, rgba(255,201,215,0.26), rgba(191,234,223,0.28));
    border: 4px solid var(--ink);
    box-shadow: 0 8px 0 var(--shadow);
}

.title-block h1 {
    margin: 0;
    font-size: 34px;
    line-height: 1.2;
    color: var(--ink);
    text-shadow: 2px 2px 0 rgba(255,255,255,0.8);
}

.title-block p {
    margin: 10px 0 0;
    color: var(--ink-soft);
    font-size: 14px;
}

.panel {
    border-radius: 18px;
    padding: 14px 18px;
    margin-bottom: 18px;
}

.info-panel {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: center;
    background:
        linear-gradient(135deg, rgba(191,234,223,0.28), rgba(255,229,150,0.2), rgba(206,198,255,0.22));
}

.info-copy {
    text-align: left;
}

.info-copy p {
    margin: 8px 0 0;
    font-size: 14px;
    line-height: 1.7;
    color: var(--ink-soft);
}

.pixel-tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 999px;
    background: var(--mint);
    border: 3px solid var(--ink);
    box-shadow: 0 4px 0 var(--shadow);
    font-size: 13px;
    font-weight: 700;
}

.stage-dots {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
    min-width: 132px;
}

.stage-dot {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    border: 3px solid var(--ink);
    background: #ece8dd;
    box-shadow: 0 4px 0 var(--shadow);
}

.stage-dot.active {
    background: var(--yellow);
}

.stage-dot.cleared {
    background: var(--mint);
}

.game-shell {
    display: flex;
    justify-content: center;
}

#game-board {
    width: 720px;
    height: 520px;
    position: relative;
    border-radius: 22px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.92), rgba(240,247,251,0.98)),
        linear-gradient(135deg, rgba(191,234,223,0.20), rgba(255,201,215,0.16));
    border: 5px solid var(--ink);
    box-shadow:
        0 10px 0 var(--shadow);
    overflow: hidden;
}

#game-board::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(77,69,102,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(77,69,102,0.05) 1px, transparent 1px);
    background-size: 24px 24px;
    pointer-events: none;
}

.card {
    width: var(--card-size);
    height: var(--card-size);
    position: absolute;
    border-radius: 14px;
    padding: 6px;
    cursor: pointer;
    transition: transform 0.12s steps(3), filter 0.12s ease, box-shadow 0.12s ease;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.98), rgba(243,238,249,0.92));
    box-shadow:
        0 6px 0 rgba(125, 112, 164, 0.55),
        inset 0 0 0 2px rgba(255,255,255,0.95);
    user-select: none;
    -webkit-user-drag: none;
}

.card::before {
    content: "";
    position: absolute;
    inset: 6px;
    border-radius: 10px;
    border: none;
    pointer-events: none;
}

.card:hover {
    transform: translateY(-4px);
}

.card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    border-radius: 10px;
    pointer-events: none;
    filter: saturate(1.02) contrast(1.03);
}

.card.entering {
    animation: popIn 0.18s steps(4);
}

.card.to-slot {
    animation: miniBounce 0.18s steps(3);
}

.card.matching {
    animation: vanish 0.24s steps(4) forwards;
}

.card.blocked {
    filter: grayscale(0.2) brightness(0.78);
    cursor: not-allowed;
}

.card.blocked::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 14px;
    background:
        repeating-linear-gradient(
            135deg,
            rgba(77,69,102,0.08) 0 6px,
            rgba(255,255,255,0.10) 6px 12px
        );
    pointer-events: none;
}

#slot-area {
    min-height: 108px;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 18px;
    background:
        linear-gradient(180deg, rgba(236,232,221,0.85), rgba(255,253,248,1));
}

.slot-shell {
    width: 720px;
    margin: 24px auto 0;
    padding: 14px;
    border-radius: 20px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,229,150,0.17));
}

.slot-title {
    text-align: left;
    margin-bottom: 10px;
    font-size: 15px;
    font-weight: 700;
    color: var(--ink-soft);
}

#slot-area .card {
    position: static;
    margin: 0;
    filter: none !important;
    cursor: default;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 120px;
    transform: translateX(-50%);
    min-width: min(720px, calc(100vw - 32px));
    max-width: 780px;
    padding: 14px 18px;
    border-radius: 18px;
    background: rgba(77, 69, 102, 0.92);
    color: #fffaf6;
    border: 4px solid var(--white);
    box-shadow: 0 8px 0 rgba(77, 69, 102, 0.35);
    font-size: 15px;
    line-height: 1.7;
    z-index: 999;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.hidden {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-50%) translateY(8px);
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(247, 242, 234, 0.82);
    backdrop-filter: blur(6px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
    z-index: 2000;
}

.overlay.hidden {
    display: none;
}

.overlay-card {
    width: min(560px, calc(100vw - 32px));
    border-radius: 24px;
    padding: 28px 24px 22px;
    background:
        linear-gradient(180deg, rgba(255,255,255,0.97), rgba(243,238,249,0.98)),
        linear-gradient(135deg, rgba(255,201,215,0.18), rgba(191,234,223,0.20));
}

.overlay-badge {
    display: inline-block;
    padding: 6px 12px;
    margin-bottom: 10px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    color: var(--ink-soft);
    border: 3px solid var(--ink);
    background: var(--yellow);
    box-shadow: 0 4px 0 var(--shadow);
}

#game-over-msg {
    margin: 6px 0 10px;
    font-size: 30px;
    line-height: 1.35;
    color: var(--ink);
}

#game-over-submsg {
    margin: 0 0 18px;
    color: var(--ink-soft);
    font-size: 15px;
    line-height: 1.8;
}

.overlay-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
}

.pixel-btn {
    border: 4px solid var(--ink);
    background: var(--mint);
    color: var(--ink);
    padding: 12px 26px;
    border-radius: 14px;
    font-family: inherit;
    font-size: 16px;
    font-weight: 700;
    box-shadow: 0 6px 0 var(--shadow);
    cursor: pointer;
    transition: transform 0.1s steps(2), box-shadow 0.1s ease;
}

.pixel-btn:hover {
    transform: translateY(-2px);
}

.pixel-btn:active {
    transform: translateY(3px);
    box-shadow: 0 2px 0 var(--shadow);
}

.secondary-btn {
    background: var(--pink);
}

@keyframes popIn {
    0% { transform: scale(0.82); opacity: 0.2; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes miniBounce {
    0% { transform: scale(0.9); }
    50% { transform: translateY(-5px); }
    100% { transform: scale(1); }
}

@keyframes vanish {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(0.72); opacity: 0; }
}

@media (max-width: 980px) {
    .hud {
        grid-template-columns: 1fr;
    }

    .title-block {
        order: -1;
    }

    .info-panel {
        flex-direction: column;
        align-items: stretch;
    }
}

@media (max-width: 760px) {
    .page-shell {
        width: calc(100vw - 16px);
        padding-top: 14px;
    }

    .title-block h1 {
        font-size: 26px;
    }

    .title-block p,
    .info-copy p,
    .slot-title,
    .hud-label {
        font-size: 12px;
    }

    .hud-value {
        font-size: 20px;
    }

    #game-board {
        transform: translateX(-50%) scale(0.48);
        transform-origin: top center;
        position: relative;
        left: 50%;
        margin-bottom: -235px;
    }

    .slot-shell {
        width: 100%;
    }

    #slot-area {
        gap: 6px;
        min-height: 78px;
        overflow-x: auto;
    }

    #slot-area .card {
        width: 54px;
        height: 54px;
        min-width: 54px;
        padding: 4px;
        border-radius: 10px;
    }

    .toast {
        bottom: 96px;
        font-size: 13px;
    }

    #game-over-msg {
        font-size: 24px;
    }

    #game-over-submsg,
    .pixel-btn {
        font-size: 14px;
    }
}


.page-shell {
    position: relative;
    z-index: 1;
}

.corner-logos {
    position: fixed;
    top: 18px;
    left: 18px;
    display: grid;
    grid-template-columns: repeat(2, 74px);
    gap: 10px;
    z-index: 0;
    pointer-events: none;
}

.corner-logo {
    width: 74px;
    height: 74px;
    object-fit: contain;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    padding: 5px;
    box-shadow: 0 4px 0 rgba(185, 177, 205, 0.55);
}

@media (max-width: 760px) {
    .corner-logos {
        top: 12px;
        left: 12px;
        grid-template-columns: repeat(2, 52px);
        gap: 8px;
    }

    .corner-logo {
        width: 52px;
        height: 52px;
        border-radius: 12px;
        padding: 4px;
    }
}