/*
 * Tetrominoes — styles for the block-stacking puzzle game.
 * Companion to main.js. All selectors prefixed with `tg-` to
 * avoid collisions with the host page.
 */

/* Scoped reset so the game lays out the same on any host page,
   regardless of whether the host has its own box-sizing reset. */
.tg-overlay,
.tg-overlay * {
    box-sizing: border-box;
}

.tg-overlay {
    /* Color palette + shared box-shadow patterns, scoped to the game. */
    --tg-fg: #0f380f;
    --tg-bg: #6b8a18;
    --tg-mid: #306230;
    --tg-shadow: 4px 4px 0 var(--tg-fg);
    --tg-shadow-sm: 3px 3px 0 var(--tg-mid);
    position: fixed;
    inset: 0;
    background: var(--tg-bg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: clamp(12px, 2.5vw, 28px);
    padding: clamp(10px, 2vw, 20px);
    opacity: 0;
    transform: scale(1.05);
    pointer-events: none;
    transition: opacity 300ms ease, transform 300ms ease;
    font-family: "Lucida Console", "Lucida Sans Typewriter", "Courier New", Courier, monospace;
    overflow-y: auto;
    color: var(--tg-fg);
}
.tg-overlay.is-visible {
    opacity: 1;
    transform: scale(1);
    pointer-events: auto;
}

/* Shared button styles. */
.tg-btn-outline {
    font: inherit;
    font-weight: bold;
    letter-spacing: 0.1em;
    color: var(--tg-fg);
    background: var(--tg-bg);
    border: 2px solid var(--tg-fg);
    text-shadow: 2px 2px 0 var(--tg-mid);
    box-shadow: var(--tg-shadow);
    cursor: pointer;
    transition: transform 60ms ease, box-shadow 60ms ease, background 120ms ease, color 120ms ease;
    -webkit-tap-highlight-color: transparent;
}
.tg-btn-outline:hover {
    background: var(--tg-fg);
    color: var(--tg-bg);
}
.tg-btn-outline:active,
.tg-btn-outline.is-pressed {
    transform: translate(4px, 4px);
    box-shadow: 0 0 0 var(--tg-fg);
}

.tg-btn-fill {
    font: inherit;
    font-weight: bold;
    color: var(--tg-bg);
    background: var(--tg-fg);
    border: none;
    box-shadow: var(--tg-shadow-sm);
    cursor: pointer;
    transition: transform 60ms ease, box-shadow 60ms ease, background 80ms ease;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    display: grid;
    place-items: center;
    padding: 0;
}
.tg-btn-fill:active,
.tg-btn-fill.is-pressed {
    transform: translate(3px, 3px);
    box-shadow: 0 0 0 var(--tg-mid);
    background: var(--tg-mid);
}

.tg-btn-outline:focus-visible,
.tg-btn-fill:focus-visible {
    outline: 2px dashed var(--tg-bg);
    outline-offset: 3px;
}

.tg-stage {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: clamp(8px, 1.4vw, 14px);
}
.tg-close {
    flex: 0 0 auto;
    width: clamp(36px, 5vw, 44px);
    height: clamp(36px, 5vw, 44px);
    font-size: clamp(20px, 2.8vw, 26px);
    line-height: 1;
    display: grid;
    place-items: center;
    padding: 0;
    box-shadow: 3px 3px 0 var(--tg-fg);
}
.tg-close:active,
.tg-close.is-pressed {
    transform: translate(3px, 3px);
    box-shadow: 0 0 0 var(--tg-fg);
}

.tg-frame {
    position: relative;
    display: grid;
    gap: clamp(10px, 1.6vw, 20px);
    align-items: start;
}

.tg-board {
    background: var(--tg-bg);
    color: var(--tg-fg);
    border: 2px solid var(--tg-fg);
    padding: clamp(8px, 1.4vw, 14px) clamp(10px, 1.5vw, 16px);
    box-shadow: var(--tg-shadow);
    text-shadow: 1px 1px 0 var(--tg-mid);
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: clamp(9px, calc((100vh - 220px) / 22), 24px);
    line-height: 1;
    margin: 0;
    white-space: pre;
    letter-spacing: 0;
    user-select: none;
}
.tg-board.is-game-over {
    cursor: pointer;
}

.tg-board-wrap {
    position: relative;
    display: inline-block;
}
.tg-game-over-text {
    position: absolute;
    left: 50%;
    top: 36%;
    transform: translate(-50%, -50%);
    z-index: 5;
    font-family: inherit;
    font-size: clamp(14px, 2.2vw, 24px);
    font-weight: bold;
    line-height: 1.2;
    text-align: center;
    color: var(--tg-fg);
    text-shadow: 2px 2px 0 var(--tg-mid);
    background: var(--tg-bg);
    border: 2px solid var(--tg-fg);
    box-shadow: var(--tg-shadow);
    padding: clamp(14px, 2.6vw, 26px) clamp(28px, 4.5vw, 42px);
    pointer-events: none;
}
.tg-game-over-text[hidden] {
    display: none;
}
.tg-restart-btn {
    position: absolute;
    left: 50%;
    top: 65%;
    transform: translate(-50%, -50%);
    z-index: 5;
    font-size: clamp(12px, 1.9vw, 18px);
    padding: clamp(6px, 1.2vw, 10px) clamp(14px, 2.4vw, 24px);
    white-space: nowrap;
}
.tg-restart-btn:active {
    transform: translate(calc(-50% + 4px), calc(-50% + 4px));
}
.tg-restart-btn[hidden] {
    display: none;
}

.tg-sidebar {
    display: flex;
    flex-direction: column;
    gap: clamp(8px, 1.2vw, 14px);
    font-size: clamp(11px, 1.6vw, 16px);
}
.tg-stat {
    border: 2px solid var(--tg-fg);
    padding: clamp(5px, 0.8vw, 8px) clamp(8px, 1.2vw, 12px);
    box-shadow: var(--tg-shadow);
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: clamp(90px, 11vw, 130px);
}
.tg-stat-label {
    color: var(--tg-fg);
    font-size: 0.8em;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    text-shadow: 1px 1px 0 var(--tg-mid);
}
.tg-stat-value {
    color: var(--tg-fg);
    font-size: 1.7em;
    line-height: 1;
    text-shadow: 1px 1px 0 var(--tg-mid);
    font-variant-numeric: tabular-nums;
}
.tg-next {
    color: var(--tg-fg);
    text-shadow: 1px 1px 0 var(--tg-mid);
    font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    font-size: clamp(11px, 1.8vw, 18px);
    line-height: 1;
    margin: 0;
    min-height: 2em;
    white-space: pre;
    user-select: none;
}

.tg-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: clamp(16px, 5vw, 64px);
    width: min(92vw, 480px);
}
.tg-dpad {
    display: grid;
    grid-template-columns: repeat(3, clamp(38px, 7.5vw, 56px));
    grid-template-rows: repeat(3, clamp(38px, 7.5vw, 56px));
    gap: 0;
}
.tg-dpad-btn {
    font-size: clamp(14px, 2.4vw, 20px);
}
.tg-dpad-center {
    background: var(--tg-fg);
    grid-column: 2;
    grid-row: 2;
}
.tg-dpad-up { grid-column: 2; grid-row: 1; }
.tg-dpad-left { grid-column: 1; grid-row: 2; }
.tg-dpad-right { grid-column: 3; grid-row: 2; }
.tg-dpad-down { grid-column: 2; grid-row: 3; }

.tg-ab {
    display: flex;
    gap: clamp(10px, 2vw, 18px);
    transform: rotate(-18deg);
    align-items: center;
}
.tg-ab-btn {
    width: clamp(48px, 8.5vw, 64px);
    height: clamp(48px, 8.5vw, 64px);
    border-radius: 50%;
    font-size: clamp(18px, 2.6vw, 24px);
    text-shadow: 1px 1px 0 var(--tg-mid);
}

@media (min-width: 700px) {
    .tg-frame {
        grid-template-columns: auto auto;
    }
}
@media (max-width: 699px) {
    .tg-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 6px;
        width: 100%;
    }
    .tg-stat {
        flex: 1 1 0;
        min-width: 64px;
        padding: 4px 8px;
    }
    .tg-stat-value {
        font-size: 1.3em;
    }
    .tg-stat-next {
        flex: 1 1 100%;
        min-width: 0;
    }
    .tg-next {
        font-size: 14px;
    }
}
@media (max-height: 620px) and (max-width: 699px) {
    .tg-stat-next {
        display: none;
    }
}