:root {
    --felt: #0b5c3c;
    --felt-dark: #08462d;
    --felt-light: #147a50;
    --ink: #f4efe4;
    --muted: rgba(244, 239, 228, 0.72);
    --gold: #e2b84a;
    --gold-dark: #b8892a;
    --card-w: 78px;
    --card-h: 110px;
    --stack-up: 24px;
    --stack-down: 11px;
    --waste-fan: 22px;
    --radius: 10px;
    --font-display: "Fredoka", system-ui, sans-serif;
    --font-body: "Nunito", system-ui, sans-serif;
    --shadow: 0 10px 24px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    overflow: hidden;
    touch-action: manipulation;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background:
        radial-gradient(ellipse 90% 60% at 50% -10%, rgba(255, 220, 120, 0.12), transparent 50%),
        radial-gradient(circle at 12% 88%, rgba(0, 0, 0, 0.18), transparent 35%),
        repeating-linear-gradient(
            135deg,
            rgba(255, 255, 255, 0.015) 0 2px,
            transparent 2px 6px
        ),
        linear-gradient(165deg, var(--felt-light), var(--felt) 40%, var(--felt-dark));
    user-select: none;
}

.app {
    height: 100%;
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.55rem 0.7rem 0.4rem;
}

.hud {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.eyebrow {
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 800;
}

h1 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    line-height: 1;
    text-shadow: 0 2px 0 rgba(0, 0, 0, 0.2);
}

.stats {
    display: flex;
    gap: 0.45rem;
}

.stat {
    background: rgba(0, 0, 0, 0.22);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    padding: 0.28rem 0.7rem;
    min-width: 72px;
    text-align: center;
}

.stat span {
    display: block;
    font-size: 0.65rem;
    font-weight: 800;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat b {
    font-size: 1.05rem;
    font-family: var(--font-display);
}

.hud-actions {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}

.btn {
    border: none;
    background: rgba(255, 255, 255, 0.12);
    color: var(--ink);
    font: inherit;
    font-weight: 800;
    font-size: 0.85rem;
    padding: 0.48rem 0.7rem;
    border-radius: 12px;
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.14);
}

.btn:hover { background: rgba(255, 255, 255, 0.2); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.primary {
    background: linear-gradient(180deg, #f0c45c, var(--gold));
    color: #3a2a08;
    border-color: transparent;
    box-shadow: 0 3px 0 var(--gold-dark);
}
.btn.primary:hover { filter: brightness(1.05); }
.btn.wide { width: 100%; padding: 0.7rem; }

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin: 0.45rem 0 0.65rem;
    flex-wrap: wrap;
}

.draw-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 999px;
    padding: 0.18rem;
    gap: 0.15rem;
}

.chip {
    border: none;
    background: transparent;
    color: var(--muted);
    font: inherit;
    font-weight: 800;
    font-size: 0.78rem;
    padding: 0.32rem 0.75rem;
    border-radius: 999px;
    cursor: pointer;
}

.chip.active {
    background: var(--gold);
    color: #3a2a08;
}

.hint-line {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--muted);
}

.board {
    min-height: 0;
    display: grid;
    grid-template-rows: auto 1fr;
    gap: 1.1rem;
}

.top-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
    align-items: start;
}

.stock-wrap, .foundations {
    display: flex;
    gap: 0.55rem;
}

.foundations { justify-content: flex-end; }

.tableau {
    display: grid;
    grid-template-columns: repeat(7, var(--card-w));
    justify-content: space-between;
    align-items: start;
    min-height: 0;
}

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

.waste { width: calc(var(--card-w) + var(--waste-fan) * 2); }

.tableau-col { height: auto; min-height: var(--card-h); }

.slot-ghost {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    border: 2px dashed rgba(255, 255, 255, 0.22);
    border-radius: var(--radius);
    color: rgba(255, 255, 255, 0.28);
    font-family: var(--font-display);
    font-size: 1.6rem;
    background: rgba(0, 0, 0, 0.08);
}

.slot-ghost.recycle { font-size: 2rem; }

.pile.valid-drop .slot-ghost,
.pile.valid-drop {
    outline: 2px solid var(--gold);
    outline-offset: 3px;
    border-radius: var(--radius);
}

.card {
    position: absolute;
    width: var(--card-w);
    height: var(--card-h);
    border-radius: var(--radius);
    box-shadow: 0 4px 0 rgba(0, 0, 0, 0.18), var(--shadow);
    cursor: pointer;
    touch-action: none;
    transform-origin: center top;
}

.card.hint {
    animation: pulse 0.7s ease 2;
}

.card.face {
    background: linear-gradient(180deg, #fffdf8, #f3eadc);
    color: #1c1a18;
    border: 1px solid #e7d8c0;
    display: grid;
    grid-template-rows: auto 1fr auto;
    padding: 0.22rem 0.28rem 0.18rem;
}

.card.face.red { color: #c62828; }
.card.face.black { color: #1b2430; }

.card.back {
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.08), transparent 40%),
        repeating-linear-gradient(45deg, #1d4e8a 0 8px, #163e6e 8px 16px);
    border: 3px solid #f2e4c9;
}

.card.back::after {
    content: "";
    position: absolute;
    inset: 7px;
    border-radius: 6px;
    border: 1px solid rgba(226, 184, 74, 0.55);
    background:
        radial-gradient(circle at 50% 50%, rgba(226, 184, 74, 0.35) 0 8%, transparent 9%),
        repeating-linear-gradient(90deg, transparent 0 10px, rgba(255, 255, 255, 0.05) 10px 11px);
}

.corner {
    display: flex;
    flex-direction: column;
    line-height: 1;
    font-weight: 800;
    font-size: 0.72rem;
}

.corner b { font-family: var(--font-display); font-size: 0.95rem; }
.corner.br { justify-self: end; transform: rotate(180deg); }

.pip {
    display: grid;
    place-items: center;
    font-size: 1.85rem;
    line-height: 1;
}

.card.hidden-src { opacity: 0.18; }

.drag-layer {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 40;
}

.drag-layer .card {
    box-shadow: 0 18px 30px rgba(0, 0, 0, 0.4);
}

.foot {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0 0.15rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--muted);
}

.link {
    background: none;
    border: none;
    color: var(--gold);
    font: inherit;
    font-weight: 800;
    cursor: pointer;
}

.modal {
    position: fixed;
    inset: 0;
    background: rgba(4, 20, 14, 0.62);
    display: grid;
    place-items: center;
    padding: 1rem;
    z-index: 50;
}

.modal[hidden] { display: none; }

.modal-card {
    width: min(420px, 100%);
    background: #fffaf1;
    color: #1f2a2e;
    border-radius: 22px;
    padding: 1.25rem 1.3rem;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.modal-card h2 {
    font-family: var(--font-display);
    font-size: 1.55rem;
    margin-bottom: 0.55rem;
}

.modal-card p { font-weight: 700; color: #5c6b71; }

.rules {
    display: grid;
    gap: 0.45rem;
    padding-left: 1.1rem;
    margin-bottom: 1rem;
    color: #3e4a4e;
    font-weight: 700;
    font-size: 0.92rem;
    line-height: 1.4;
}

.win { text-align: center; }
.win-stats {
    display: flex;
    justify-content: center;
    gap: 0.7rem;
    margin: 0.85rem 0 1rem;
    font-weight: 800;
    font-size: 0.9rem;
}

.confetti span {
    position: absolute;
    top: -8px;
    width: 8px;
    height: 12px;
    animation: fall 1.2s linear forwards;
}

@keyframes pulse {
    50% { transform: translateY(-4px) scale(1.04); }
}

@keyframes fall {
    to { transform: translateY(220px) rotate(220deg); opacity: 0; }
}

@media (max-width: 860px) {
    :root {
        --card-w: 62px;
        --card-h: 88px;
        --stack-up: 20px;
        --stack-down: 9px;
        --waste-fan: 16px;
    }
    h1 { font-size: 1.25rem; }
    .stat { min-width: 58px; padding: 0.22rem 0.45rem; }
    .pip { font-size: 1.45rem; }
}

@media (max-width: 520px) {
    :root {
        --card-w: 44px;
        --card-h: 64px;
        --stack-up: 16px;
        --stack-down: 8px;
        --waste-fan: 12px;
        --radius: 7px;
    }
    .app { padding: 0.4rem 0.4rem 0.25rem; }
    .eyebrow { display: none; }
    .hint-line { display: none; }
    .btn.primary { padding: 0.45rem 0.55rem; font-size: 0.75rem; }
    .corner { font-size: 0.55rem; }
    .corner b { font-size: 0.72rem; }
    .pip { font-size: 1.15rem; }
    .card.face { padding: 0.12rem 0.16rem; }
}