:root {
    color-scheme: dark;
    --bg: #07111d;
    --panel: rgba(10, 25, 39, 0.86);
    --panel-soft: rgba(255, 255, 255, 0.055);
    --line: rgba(255, 255, 255, 0.11);
    --line-strong: rgba(255, 255, 255, 0.19);
    --text: #f5f8fb;
    --muted: #98a9b8;
    --accent: #67e8c5;
    --accent-2: #89a7ff;
    --danger: #ff7288;
    --gold: #ffd76a;
    --felt-1: #0c6b56;
    --felt-2: #07493d;
    --card-w: 82px;
    --card-h: 114px;
    --radius: 15px;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    height: 100%;
    margin: 0;
    overflow: hidden;
    background: var(--bg);
    color: var(--text);
}

button,
a {
    font: inherit;
}

button {
    color: inherit;
}

.game-shell {
    min-width: 760px;
    width: 100%;
    height: 100%;
    min-height: 620px;
    display: grid;
    grid-template-rows: auto 1fr auto;
    padding: 14px;
    gap: 10px;
    background:
        radial-gradient(circle at 17% 0%, rgba(103, 232, 197, 0.13), transparent 31%),
        radial-gradient(circle at 84% 10%, rgba(137, 167, 255, 0.13), transparent 30%),
        linear-gradient(155deg, #081522 0%, #07111d 54%, #08131f 100%);
}

.topbar,
.game-footer {
    border: 1px solid var(--line);
    background: rgba(6, 16, 27, 0.84);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(14px);
}

.topbar {
    min-height: 74px;
    border-radius: 20px;
    display: grid;
    grid-template-columns: minmax(180px, 0.72fr) minmax(440px, 1.65fr) auto;
    gap: 14px;
    align-items: center;
    padding: 10px 12px 10px 18px;
}

.brand-block {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.brand-kicker,
.overlay-kicker {
    color: var(--accent);
    font-size: 0.7rem;
    font-weight: 850;
    letter-spacing: 0.16em;
}

.brand-block strong {
    margin-top: 2px;
    font-size: clamp(1.12rem, 2vw, 1.48rem);
    line-height: 1.05;
    letter-spacing: -0.035em;
}

.stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(88px, 1fr));
    gap: 8px;
}

.stat-card {
    min-height: 52px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    padding: 8px 12px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--panel-soft);
}

.stat-card span {
    color: var(--muted);
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.stat-card strong {
    font-size: 1.06rem;
    font-variant-numeric: tabular-nums;
}

.top-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.icon-button {
    min-height: 48px;
    min-width: 92px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 0 13px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.055);
    cursor: pointer;
    transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.icon-button:hover {
    border-color: rgba(103, 232, 197, 0.5);
    background: rgba(103, 232, 197, 0.09);
}

.icon-button:active {
    transform: translateY(1px);
}

.icon-button[aria-pressed="true"] {
    border-color: rgba(255, 114, 136, 0.5);
    background: rgba(255, 114, 136, 0.1);
}

.icon-button span:first-child {
    font-size: 1.1rem;
    font-weight: 900;
}

.button-label {
    font-size: 0.76rem;
    font-weight: 800;
}

.game-board {
    position: relative;
    min-height: 0;
    overflow: hidden;
    border: 1px solid rgba(155, 255, 222, 0.16);
    border-radius: 25px;
    background:
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        radial-gradient(circle at 50% 15%, rgba(86, 241, 194, 0.1), transparent 45%),
        linear-gradient(150deg, var(--felt-1), var(--felt-2));
    background-size: 24px 24px, 24px 24px, auto, auto;
    box-shadow: inset 0 0 90px rgba(0, 0, 0, 0.28), 0 20px 45px rgba(0, 0, 0, 0.22);
}

.game-board::before {
    content: "";
    position: absolute;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 18%, transparent 80%, rgba(0, 0, 0, 0.12));
}

.board-top-row {
    width: min(850px, calc(100% - 64px));
    height: 138px;
    margin: 18px auto 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
}

.stock-zone,
.foundation-zone {
    display: flex;
    gap: 12px;
}

.pile,
.tableau-pile {
    position: relative;
    width: var(--card-w);
    min-width: var(--card-w);
    height: var(--card-h);
    border-radius: var(--radius);
}

.pile {
    border: 1px dashed rgba(255, 255, 255, 0.22);
    background: rgba(4, 37, 31, 0.14);
}

.pile--stock {
    padding: 0;
    border-style: solid;
    border-color: rgba(255, 255, 255, 0.15);
    cursor: pointer;
}

.card-back,
.empty-stock {
    position: absolute;
    inset: 0;
    border-radius: calc(var(--radius) - 1px);
}

.card-back {
    display: block;
    border: 3px solid #f2f5f7;
    background:
        radial-gradient(circle at center, transparent 0 4px, rgba(255, 255, 255, 0.18) 4px 5px, transparent 5px 9px),
        linear-gradient(45deg, rgba(255,255,255,.13) 25%, transparent 25% 75%, rgba(255,255,255,.13) 75%),
        linear-gradient(135deg, #183e82, #10275a);
    background-size: 18px 18px, 14px 14px, auto;
    box-shadow: 0 7px 17px rgba(0, 0, 0, 0.23), inset 0 0 0 2px rgba(255, 255, 255, 0.12);
}

.empty-stock {
    display: none;
    place-items: center;
    color: rgba(255, 255, 255, 0.42);
    font-size: 2.1rem;
}

.pile--stock.is-empty .card-back {
    display: none;
}

.pile--stock.is-empty .empty-stock {
    display: grid;
}

.foundation-mark {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    color: rgba(255, 255, 255, 0.18);
    font-family: Georgia, "Times New Roman", serif;
    font-size: 2.35rem;
    user-select: none;
}

.foundation-mark--red {
    color: rgba(255, 132, 148, 0.23);
}

.tableau {
    width: min(850px, calc(100% - 64px));
    height: calc(100% - 164px);
    min-height: 345px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(7, var(--card-w));
    justify-content: space-between;
    gap: 16px;
}

.tableau-pile {
    height: 100%;
    min-height: var(--card-h);
    border: 1px dashed rgba(255, 255, 255, 0.13);
    background: rgba(4, 37, 31, 0.08);
}

.card {
    position: absolute;
    left: -1px;
    width: var(--card-w);
    height: var(--card-h);
    border: 1px solid rgba(11, 21, 31, 0.25);
    border-radius: var(--radius);
    background: linear-gradient(150deg, #ffffff, #eef2f5);
    color: #111b25;
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    user-select: none;
    touch-action: manipulation;
    transition: transform 105ms ease, box-shadow 105ms ease, filter 105ms ease;
}

.card:hover {
    filter: brightness(1.025);
}

.card.is-selected {
    transform: translateY(-6px);
    box-shadow: 0 0 0 3px var(--gold), 0 12px 22px rgba(0, 0, 0, 0.28);
    z-index: 80 !important;
}

.card.is-hint {
    animation: hintPulse 720ms ease 2;
    z-index: 95 !important;
}

.card.is-red {
    color: #d52844;
}

.card.is-facedown {
    border: 3px solid #f1f5f8;
    background:
        radial-gradient(circle at center, rgba(255,255,255,.19) 0 2px, transparent 3px),
        linear-gradient(45deg, rgba(255,255,255,.12) 25%, transparent 25% 75%, rgba(255,255,255,.12) 75%),
        linear-gradient(135deg, #173e83, #10275a);
    background-size: 12px 12px, 14px 14px, auto;
    color: transparent;
    cursor: default;
    box-shadow: 0 6px 13px rgba(0, 0, 0, 0.2), inset 0 0 0 2px rgba(255, 255, 255, 0.09);
}

.card-corner {
    position: absolute;
    top: 7px;
    left: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    line-height: 0.82;
    font-family: Georgia, "Times New Roman", serif;
    font-weight: 800;
}

.card-corner strong {
    font-size: 0.92rem;
}

.card-corner span {
    margin-top: 5px;
    font-size: 0.98rem;
}

.card-corner--bottom {
    top: auto;
    left: auto;
    right: 8px;
    bottom: 7px;
    transform: rotate(180deg);
}

.card-suit-large {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 2.15rem;
    opacity: 0.88;
}

.pile > .card,
.pile--waste > .card,
.pile--foundation > .card {
    top: -1px;
}

.board-message {
    position: absolute;
    left: 50%;
    bottom: 14px;
    z-index: 120;
    transform: translate(-50%, 10px);
    max-width: 72%;
    padding: 8px 13px;
    border: 1px solid transparent;
    border-radius: 999px;
    background: rgba(5, 18, 25, 0.9);
    color: #eef7f5;
    font-size: 0.76rem;
    font-weight: 750;
    opacity: 0;
    pointer-events: none;
    transition: opacity 140ms ease, transform 140ms ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.board-message.is-visible {
    opacity: 1;
    transform: translate(-50%, 0);
}

.board-message.is-error {
    border-color: rgba(255, 114, 136, 0.45);
    color: #ffdce3;
}

.board-message.is-success {
    border-color: rgba(103, 232, 197, 0.42);
    color: #d9fff4;
}

.game-overlay {
    position: absolute;
    inset: 0;
    z-index: 200;
    display: grid;
    place-items: center;
    padding: 24px;
    background: rgba(3, 12, 19, 0.6);
    backdrop-filter: blur(7px);
}

.game-overlay[hidden] {
    display: none;
}

.game-overlay--game-over {
    background: rgba(22, 7, 13, 0.68);
}

.overlay-card {
    width: min(430px, 90%);
    padding: 27px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 24px;
    background: rgba(7, 18, 29, 0.94);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.42);
    text-align: center;
}

.overlay-card--small {
    width: min(320px, 85%);
}

.overlay-card strong {
    display: block;
    margin-top: 5px;
    font-size: 1.72rem;
    letter-spacing: -0.04em;
}

.overlay-card p {
    margin: 10px 0 0;
    color: #b9c7d1;
    line-height: 1.45;
}

.overlay-card small {
    display: block;
    margin-top: 10px;
    color: #8798a7;
}

.game-footer {
    min-height: 34px;
    border-radius: 13px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    padding: 0 13px;
    color: var(--muted);
    font-size: 0.69rem;
}

.game-footer a {
    color: #b8c7d2;
    text-decoration: none;
    font-weight: 700;
}

.game-footer a:hover {
    color: var(--accent);
}

@keyframes hintPulse {
    0%, 100% { box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2); }
    45% { box-shadow: 0 0 0 4px rgba(255, 215, 106, 0.95), 0 12px 25px rgba(0, 0, 0, 0.28); transform: translateY(-6px); }
}

@media (max-width: 1000px), (max-height: 700px) {
    :root {
        --card-w: 72px;
        --card-h: 100px;
    }

    .game-shell {
        padding: 9px;
        gap: 7px;
    }

    .topbar {
        min-height: 62px;
        padding: 7px 9px 7px 14px;
    }

    .stat-card {
        min-height: 46px;
        padding: 6px 9px;
    }

    .icon-button {
        min-height: 44px;
        min-width: 76px;
        padding-inline: 10px;
    }

    .button-label {
        display: none;
    }

    .board-top-row,
    .tableau {
        width: min(745px, calc(100% - 38px));
    }

    .board-top-row {
        height: 120px;
        margin-top: 12px;
    }

    .tableau {
        height: calc(100% - 136px);
        gap: 13px;
    }

    .stock-zone,
    .foundation-zone {
        gap: 10px;
    }

    .card-corner strong {
        font-size: 0.88rem;
    }

    .card-corner span {
        font-size: 0.95rem;
    }

    .card-suit-large {
        font-size: 2.05rem;
    }
}

@media (max-width: 820px) {
    .game-shell {
        min-width: 700px;
    }

    .topbar {
        grid-template-columns: 150px 1fr auto;
    }

    .stats {
        grid-template-columns: repeat(4, minmax(70px, 1fr));
    }

    .brand-block strong {
        font-size: 1.05rem;
    }
}

.pile.is-hint-target,
.tableau-pile.is-hint-target,
.pile--stock.is-hint-target {
    box-shadow: 0 0 0 3px rgba(255, 215, 106, 0.92), 0 0 28px rgba(255, 215, 106, 0.28);
    border-color: rgba(255, 215, 106, 0.92);
}