/* Shared game chrome — fullscreen + how-to button cluster and modal.
   Theme per game with CSS variables on the game wrapper:
     --chrome-accent  hover/active accent (default steel blue)
     --chrome-bg      button background
     --chrome-fg      button text
*/

.rmc-cluster {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 8px;
    z-index: 60;
}

.rmc-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--chrome-bg, rgba(20, 20, 24, 0.65));
    color: var(--chrome-fg, #fff);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 6px;
    padding: 6px 12px;
    font-size: 14px;
    line-height: 1.2;
    cursor: pointer;
    user-select: none;
    transition: background 0.15s, border-color 0.15s;
}

.rmc-btn:hover {
    background: var(--chrome-accent, #3a6ea5);
    border-color: rgba(255, 255, 255, 0.5);
}

:fullscreen .rmc-btn { opacity: 0.85; }

/* How-to modal */
.rmc-modal {
    position: absolute;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    background: rgba(0, 0, 0, 0.6);
    z-index: 70;
}

.rmc-modal.rmc-open { display: flex; }

.rmc-modal-panel {
    background: var(--chrome-panel-bg, #1c1c22);
    color: var(--chrome-panel-fg, #f0f0f0);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    max-width: 420px;
    width: calc(100% - 40px);
    max-height: 80%;
    overflow-y: auto;
    padding: 20px 24px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.rmc-modal-panel h3 {
    margin: 0 0 12px;
    font-size: 1.15rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.rmc-modal-close {
    background: none;
    border: none;
    color: inherit;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    opacity: 0.7;
}

.rmc-modal-close:hover { opacity: 1; }

.rmc-modal-panel p { margin: 0 0 10px; font-size: 0.92rem; line-height: 1.5; }
.rmc-modal-panel ul { margin: 0 0 10px 18px; padding: 0; font-size: 0.92rem; line-height: 1.5; }
.rmc-modal-panel li { margin-bottom: 4px; }
.rmc-modal-panel kbd {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    padding: 1px 6px;
    font-size: 0.85em;
}