:root {
    --surface-cursor: url("../textures/hole_cursor.png") 16 16, none;
}

body {
    margin: 0;
    overflow: hidden; /* Prevent scrollbars */
    background-color: #f0f0f0;
    cursor: var(--surface-cursor);
}

canvas {
    display: block; /* Remove extra space below canvas */
    cursor: var(--surface-cursor);
}

.tapmoji-ui {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%) scale(var(--tapmoji-scale, 1));
    transform-origin: bottom center;
    width: min(90vw, 500px);
    display: flex;
    flex-direction: column;
    gap: 16px;
    z-index: 12000;
    pointer-events: none;
    --tapmoji-cell-size: 60px;
    --tapmoji-grid-gap: 10px;
    --tapmoji-scale: 0.62;
    --tapmoji-backdrop-blur: 13.75px;
    --tapmoji-tint-opacity: 0;
    --tapmoji-border-radius: 33.5px;
    --tapmoji-shadow-offset-y: 0px;
    --tapmoji-shadow-blur: 13px;
    --tapmoji-shadow-opacity: 0.15;
    --tapmoji-cell-radius: calc(var(--tapmoji-border-radius) * 0.55);
    --tapmoji-sprite-radius: calc(var(--tapmoji-cell-radius) * 0.85);
    --tapmoji-cell-shadow-blur: 18px;
    --tapmoji-cell-shadow-offset-y: 6px;
    --tapmoji-cell-shadow-opacity: 0.28;
    --tapmoji-grid-columns: 7;
    --sprite-columns: 7;
    --sprite-rows: 7;
    --tapmoji-sprite-sheet: url("../textures/tapmojis/shapes_2x2_outline.png");
    --tapmoji-sprite-scale: 1;
}

.tapmoji-panel {
    position: relative;
    border-radius: var(--tapmoji-border-radius);
    padding: 14px 18px;
    background: transparent;
    overflow: visible;
    pointer-events: auto;
    box-shadow: none;
}

.tapmoji-panel::before,
.tapmoji-panel::after {
    content: none;
    display: none;
}

.tapmoji-tray-panel {
    padding: calc(var(--tapmoji-cell-shadow-blur) + var(--tapmoji-grid-gap))
        calc(var(--tapmoji-cell-shadow-blur) + var(--tapmoji-grid-gap));
    overflow: visible;
}

.tapmoji-tray-scroll {
    max-height: none;
    overflow: visible;
    scrollbar-width: thin;
    padding: 0;
}

.tapmoji-tray-scroll::-webkit-scrollbar {
    width: 8px;
}

.tapmoji-tray-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.18);
    border-radius: 999px;
}

.tapmoji-grid {
    display: grid;
    grid-template-columns: repeat(var(--tapmoji-grid-columns, 7), var(--tapmoji-cell-size));
    grid-auto-rows: var(--tapmoji-cell-size);
    gap: var(--tapmoji-grid-gap);
    justify-content: center;
    padding: 0;
}

.tapmoji-cell {
    position: relative;
    overflow: visible;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--tapmoji-cell-radius);
    padding: 8px;
    background: rgba(255, 255, 255, 0.04);
    cursor: var(--surface-cursor);
    transition:
        transform 0.18s ease,
        background var(--tapmoji-hint-glow-transition, 0.5s) ease,
        box-shadow var(--tapmoji-hint-glow-transition, 0.5s) ease;
    --tapmoji-hint-glow-transition: var(--tapmoji-hint-glow-in, 500ms);
    --tapmoji-hint-glow-strength: 0;
    --tapmoji-hint-glow-alpha: 0;
}

.tapmoji-cell:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-2px);
}

.tapmoji-cell:active {
    transform: translateY(1px) scale(0.97);
}

.tapmoji-cell::before {
    content: "";
    position: absolute;
    inset: 8px;
    border-radius: inherit;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.18),
        rgba(255, 255, 255, 0.02)
    );
    opacity: 0;
    transform: scale(0.85);
    transition: opacity var(--tapmoji-hint-glow-transition) ease;
    pointer-events: none;
}

.tapmoji-cell::after {
    content: "";
    position: absolute;
    inset: -14px;
    border-radius: inherit;
    box-shadow: 0 0 46px rgba(255, 255, 255, 0.85);
    opacity: calc(var(--tapmoji-hint-glow-strength, 0.45) * var(--tapmoji-hint-glow-alpha, 0));
    transition: opacity var(--tapmoji-hint-glow-transition) ease;
    pointer-events: none;
    filter: saturate(140%);
}

.tapmoji-cell.is-hint-arming {
    background: rgba(255, 255, 255, 0.14);
    box-shadow: 0 12px 32px rgba(240, 255, 255, 0.25);
    --tapmoji-hint-glow-alpha: 1;
}

.tapmoji-cell.is-hint-arming::before {
    opacity: 1;
}

.tapmoji-cell.is-hint-active::before {
    opacity: 1;
}

.tapmoji-cell.is-hint-active {
    background: rgba(255, 255, 255, 0.18);
    box-shadow: 0 14px 42px rgba(255, 255, 255, 0.3);
    --tapmoji-hint-glow-alpha: 1;
}

.tapmoji-cell.is-hint-complete {
    --tapmoji-hint-glow-transition: var(--tapmoji-hint-glow-out, 280ms);
    --tapmoji-hint-glow-alpha: 0;
}

.tapmoji-cell.is-hint-pulse .tapmoji-sprite-image {
    animation: tapmojiHintPulse var(--tapmoji-hint-pulse-duration, 220ms)
        ease-out;
}

@keyframes tapmojiHintPulse {
    0% {
        transform: scale(var(--tapmoji-sprite-scale, 1));
    }
    40% {
        transform: scale(var(--tapmoji-sprite-scale, 1))
            scale(var(--tapmoji-hint-active-scale, 1.08));
    }
    100% {
        transform: scale(var(--tapmoji-sprite-scale, 1));
    }
}

.tapmoji-sprite {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: var(--tapmoji-cell-size);
    aspect-ratio: 1 / 1;
    border-radius: var(--tapmoji-sprite-radius);
    box-shadow:
        inset 0 0 0 1px rgba(255, 255, 255, 0.2),
        0 var(--tapmoji-cell-shadow-offset-y) var(--tapmoji-cell-shadow-blur)
            rgba(0, 0, 0, var(--tapmoji-cell-shadow-opacity));
    overflow: hidden;
}

.tapmoji-sprite-image {
    width: 100%;
    height: 100%;
    background-image: var(--tapmoji-sprite-sheet);
    background-repeat: no-repeat;
    background-size: calc(var(--sprite-columns, 7) * 100%) calc(var(--sprite-rows, 7) * 100%);
    background-position:
        calc(var(--sprite-col, 0) * 100% / max(var(--sprite-columns, 7) - 1, 1))
        calc(var(--sprite-row, 0) * 100% / max(var(--sprite-rows, 7) - 1, 1));
    transform-origin: center;
    transform: scale(var(--tapmoji-sprite-scale, 1));
    will-change: transform;
}

@media (max-width: 720px) {
    .tapmoji-ui {
        bottom: 24px;
        width: min(94vw, 420px);
        --tapmoji-cell-size: 52px;
        --tapmoji-grid-gap: 8px;
    }

}

/* ────────────────────────────────────────────────────────────────────────── */
/* Courtship Thread HUD (HTML layer): cross-section strand indicator           */
/* ────────────────────────────────────────────────────────────────────────── */

.courtship-thread-hud {
    position: fixed;
    left: calc(var(--courtship-thread-hud-left, 50%) + var(--courtship-thread-hud-offset-x, 0px));
    top: calc(var(--courtship-thread-hud-top, 46%) + var(--courtship-thread-hud-offset-y, 0px));
    z-index: 14000;
    pointer-events: none;
    opacity: 0;
    transform: translate(-50%, -50%) translateY(-4px)
        scale(var(--courtship-thread-hud-scale, 1));
    transform-origin: center;
    transition:
        opacity var(--courtship-thread-hud-fade-out, 220ms) ease,
        transform var(--courtship-thread-hud-fade-out, 220ms) ease;
    will-change: opacity, transform;
    /* filter: drop-shadow(0 10px 18px rgba(0, 0, 0, 0.35)); */
}

.courtship-thread-hud.is-visible {
    opacity: 1;
    transform: translate(-50%, -50%) translateY(0)
        scale(var(--courtship-thread-hud-scale, 1));
    transition-duration: var(--courtship-thread-hud-fade-in, 220ms);
}

.courtship-thread-hud__progress {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) rotate(-90deg);
    transform-origin: center;
    pointer-events: none;
    z-index: 0;
}

.courtship-thread-hud__progress-ring {
    fill: none;
    stroke: var(--courtship-thread-hud-progress-color, rgba(255, 255, 255, 0.9));
    stroke-width: var(--courtship-thread-hud-progress-stroke, 4px);
    stroke-linecap: round;
    transition: stroke-dashoffset var(--courtship-thread-hud-progress-anim, 120ms) linear;
}

.courtship-thread-hud__circle {
    position: absolute;
    width: var(--courtship-thread-hud-circle-d, 14px);
    height: var(--courtship-thread-hud-circle-d, 14px);
    box-sizing: border-box;
    border-radius: 999px;
    transform: translate(-50%, -50%);
    z-index: 1;
    opacity: 1;
    background-color: var(--courtship-thread-hud-fill, #E07A17);
    border: var(--courtship-thread-hud-stroke, 2px)
        solid
        var(--courtship-thread-hud-stroke-color, rgba(0, 0, 0, 0.92));
    transition:
        background-color var(--courtship-thread-hud-snap, 520ms) ease,
        opacity var(--courtship-thread-hud-fade-in, 220ms) ease;
}

.courtship-thread-hud__circle.is-broken,
.courtship-thread-hud__circle.is-snapped {
    background-color: var(--courtship-thread-hud-unfilled, #777777);
}

.courtship-thread-hud__circle.is-uncreated {
    opacity: var(--courtship-thread-hud-uncreated-opacity, 0.55);
    background-color: var(--courtship-thread-hud-unfilled, #777777);
}