/* 2047+1 — tile merge game */

.tp-panel {
    width: min(100%, 560px);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

/* ── HUD ─────────────────────────────────────────────────────────────────── */

.tp-hud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tp-stat {
    flex: 1 1 92px;
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    padding: 0.5rem 0.6rem;
    border: 1px solid rgba(0, 255, 255, 0.24);
    background: rgba(0, 255, 255, 0.05);
}

.tp-stat-label {
    font-size: 0.64rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--game-muted);
}

.tp-stat strong {
    font-family: "Barlow Condensed", sans-serif;
    font-size: 1.15rem;
    letter-spacing: 0.06em;
    color: var(--game-accent);
}

.tp-stat.is-target strong {
    color: var(--game-warning);
}

/* ── Timer ───────────────────────────────────────────────────────────────── */

.tp-timer-track {
    height: 6px;
    border: 1px solid rgba(0, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.05);
}

.tp-timer-bar {
    height: 100%;
    width: 100%;
    background: linear-gradient(90deg, #00ffff, #7dffb4);
    transition: width 240ms linear;
}

.tp-timer-bar.is-low {
    background: linear-gradient(90deg, #ffd166, #ff6b6b);
}

/* ── Board ───────────────────────────────────────────────────────────────── */

.tp-board {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0.55rem;
    padding: 0.65rem;
    border: 1px solid rgba(0, 255, 255, 0.28);
    background: rgba(0, 255, 255, 0.04);
    touch-action: none;
}

.tp-cell {
    position: relative;
    aspect-ratio: 1;
}

.tp-tile {
    position: absolute;
    inset: 0;
    display: grid;
    place-items: center;
    border: 1px solid rgba(0, 255, 255, 0.16);
    background: rgba(255, 255, 255, 0.03);
    color: var(--game-text);
    font-family: "Barlow Condensed", sans-serif;
    font-size: clamp(1.05rem, 5.2vw, 1.9rem);
    font-weight: 700;
    letter-spacing: 0.04em;
}

.tp-tile.is-empty {
    color: transparent;
    border-color: rgba(0, 255, 255, 0.07);
    background: rgba(255, 255, 255, 0.02);
}

.tp-tile[data-value="2"],
.tp-tile[data-value="256"] {
    background: rgba(0, 255, 255, 0.14);
    border-color: rgba(0, 255, 255, 0.34);
}

.tp-tile[data-value="4"],
.tp-tile[data-value="512"] {
    background: rgba(0, 255, 255, 0.22);
    border-color: rgba(0, 255, 255, 0.44);
}

.tp-tile[data-value="8"],
.tp-tile[data-value="1024"] {
    background: rgba(125, 255, 180, 0.2);
    border-color: rgba(125, 255, 180, 0.44);
}

.tp-tile[data-value="16"],
.tp-tile[data-value="2048"] {
    background: rgba(255, 209, 102, 0.26);
    border-color: rgba(255, 209, 102, 0.52);
}

.tp-tile[data-value="32"] {
    background: rgba(255, 209, 102, 0.16);
    border-color: rgba(255, 209, 102, 0.38);
}

.tp-tile[data-value="64"] {
    background: rgba(255, 107, 107, 0.18);
    border-color: rgba(255, 107, 107, 0.42);
}

.tp-tile[data-value="128"] {
    background: rgba(255, 107, 107, 0.28);
    border-color: rgba(255, 107, 107, 0.55);
    box-shadow: 0 0 16px rgba(255, 107, 107, 0.22);
}

.tp-tile.is-new {
    animation: tp-pop 400ms ease;
}

.tp-tile.is-merged {
    animation: tp-merge 400ms ease;
}

@keyframes tp-pop {
    from {
        transform: scale(0.7);
        opacity: 0.35;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes tp-merge {
    0% {
        transform: scale(1);
    }
    45% {
        transform: scale(1.12);
    }
    100% {
        transform: scale(1);
    }
}

/* ── Footer ──────────────────────────────────────────────────────────────── */

.tp-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.tp-start {
    min-width: 130px;
}

.tp-hint {
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--game-muted);
}

/* ── Config panel ────────────────────────────────────────────────────────── */

.tp-config {
    margin-top: 1.1rem;
    padding-top: 0.9rem;
    border-top: 1px solid rgba(0, 255, 255, 0.18);
}

.tp-config-title {
    margin: 0 0 0.75rem;
    font-size: 0.82rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--game-text);
}

.tp-config-row + .tp-config-row {
    margin-top: 0.8rem;
}

.tp-config-row label {
    display: block;
    margin-bottom: 0.35rem;
    font-size: 0.7rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--game-muted);
}

.tp-select {
    width: 100%;
    padding: 0.45rem 0.5rem;
    color: var(--game-text);
    background: rgba(0, 255, 255, 0.06);
    border: 1px solid rgba(0, 255, 255, 0.28);
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
}

.tp-select option {
    background: #04100f;
}

.tp-config-options {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.tp-cfg-btn {
    padding: 0.4rem 0.65rem;
    color: var(--game-muted);
    background: rgba(0, 255, 255, 0.05);
    border: 1px solid rgba(0, 255, 255, 0.28);
    font: inherit;
    font-size: 0.75rem;
    cursor: pointer;
    transition: 140ms ease;
}

.tp-cfg-btn:hover,
.tp-cfg-btn:focus-visible {
    color: var(--game-accent);
    border-color: var(--game-accent);
}

.tp-cfg-btn.active {
    color: #041414;
    background: var(--game-accent);
    border-color: var(--game-accent);
}

.tp-slider {
    width: 100%;
    accent-color: var(--game-accent);
}

.tp-readout {
    margin-top: 0.25rem;
    font-size: 0.75rem;
    color: var(--game-accent);
}

.tp-config-note {
    margin: 0.9rem 0 0;
    font-size: 0.68rem;
    color: var(--game-muted);
}

@media (prefers-reduced-motion: reduce) {
    .tp-tile.is-new,
    .tp-tile.is-merged,
    .tp-timer-bar {
        animation: none;
        transition: none;
    }
}