/* ─── Corner-floating control pads ───────────────────────────────── */
.ctrl-corner {
    position: fixed;
    bottom: 1.25rem;
    z-index: 8000;
    user-select: none;
    -webkit-user-select: none;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 1rem;
    padding: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.ctrl-corner-left  { left:  1.25rem; }
.ctrl-corner-right { right: 1.25rem; }

/* ─── Shared button base ─────────────────────────────────────────── */
.ctrl-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 10px;
    font-size: 1.3rem;
    font-weight: 700;
    cursor: pointer;
    touch-action: manipulation;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: transform 0.07s ease, box-shadow 0.07s ease;
    -webkit-tap-highlight-color: transparent;
}

.ctrl-btn:active {
    transform: scale(0.87);
    box-shadow: none !important;
}

/* ─── Digit buttons ──────────────────────────────────────────────── */
.numpad-grid {
    display: grid;
    grid-template-columns: repeat(3, 50px);
    gap: 6px;
}

.digit-btn {
    background: #dc2626;
    color: #fff;
    box-shadow: 0 3px 6px rgba(220, 38, 38, 0.4);
}

.digit-btn:hover  { background: #b91c1c; }
.digit-btn:active { background: #991b1b; }

/* ─── D-pad ──────────────────────────────────────────────────────── */
.dpad-grid {
    display: grid;
    grid-template-columns: repeat(3, 50px);
    grid-template-rows:    repeat(3, 50px);
    gap: 6px;
}

.dpad-empty {
    display: block;
    width: 50px;
    height: 50px;
}

.arrow-btn {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    font-size: 0.9rem;
}

.arrow-btn:hover  { background: rgba(255, 255, 255, 0.24); }
.arrow-btn:active { background: rgba(255, 255, 255, 0.38); }

.clear-btn {
    background: rgba(220, 38, 38, 0.28);
    color: #fca5a5;
    border: 1px solid rgba(220, 38, 38, 0.4);
    font-size: 1.1rem;
    font-weight: 800;
}

.clear-btn:hover  { background: rgba(220, 38, 38, 0.42); }
.clear-btn:active { background: rgba(220, 38, 38, 0.6); }

/* ─── Flash feedback ─────────────────────────────────────────────── */
.flash {
    transform: scale(0.87) !important;
    background: #fef08a !important;
    box-shadow: none !important;
    transition: none !important;
}

/* ─── Responsive: tighter on small screens ───────────────────────── */
@media (max-width: 420px) {
    .ctrl-btn, .dpad-empty {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
        border-radius: 8px;
    }
    .numpad-grid { grid-template-columns: repeat(3, 42px); gap: 4px; }
    .dpad-grid   { grid-template-columns: repeat(3, 42px); grid-template-rows: repeat(3, 42px); gap: 4px; }
    .ctrl-corner { padding: 0.35rem; }
}