/* Block Rain Styling Container */
.block-rain-container {
    background-color: #1a1a2e;
    color: #ffffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 25px;
    border-radius: 12px;
    max-width: 500px;
    margin: 30px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
}

.block-rain-container *, .block-rain-container *::before, .block-rain-container *::after {
    box-sizing: border-box;
}

/* Flexbox simulation using display table or block adjustments for layouts */
.block-rain-layout {
    display: block;
    overflow: hidden;
}

.block-rain-game-area {
    float: left;
    position: relative;
    width: 300px;
    height: 600px;
    background-color: #0f0f1a;
    border: 4px solid #16213e;
    border-radius: 6px;
}

#blockRainCanvas {
    display: block;
    background-color: #0f0f1a;
}

/* Side Panel styling */
.block-rain-side-panel {
    float: right;
    width: 140px;
    margin-left: 10px;
}

/* Clearfix for floated layout elements */
.block-rain-layout::after {
    content: "";
    clear: both;
    display: table;
}

.panel-box {
    background-color: #16213e;
    border: 2px solid #0f3460;
    border-radius: 6px;
    padding: 10px;
    margin-bottom: 12px;
    text-align: center;
}

.panel-box h3 {
    margin: 0 0 5px 0;
    font-size: 11pt;
    color: #e94560;
    letter-spacing: 1px;
    text-transform: uppercase;
}

#blockRainScore, #blockRainLevel, #blockRainLines {
    font-size: 16pt;
    font-weight: bold;
    color: #fff;
}

#blockRainNextCanvas {
    background-color: #0f0f1a;
    border-radius: 4px;
    margin-top: 5px;
}

.controls-guide h3 {
    margin-bottom: 8px;
}

.controls-guide ul {
    list-style: none;
    padding: 0;
    margin: 0;
    text-align: left;
    font-size: 8.5pt;
    color: #b5b5c3;
}

.controls-guide li {
    margin-bottom: 6px;
    line-height: 1.4;
}

.controls-guide kbd {
    background-color: #0f0f1a;
    border: 1px solid #e94560;
    border-radius: 3px;
    padding: 1px 4px;
    font-size: 8pt;
    color: #e94560;
}

/* Game Over / Start Overlay */
.block-rain-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 15, 26, 0.85);
    display: block;
    z-index: 10;
}

.overlay-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    width: 90%;
}

.overlay-content h2 {
    font-size: 22pt;
    margin: 0 0 10px 0;
    color: #e94560;
    letter-spacing: 2px;
}

.overlay-content p {
    font-size: 11pt;
    margin: 0 0 20px 0;
    color: #fff;
}

.block-rain-btn {
    background-color: #e94560;
    color: #fff;
    border: none;
    padding: 10px 20px;
    font-size: 11pt;
    font-weight: bold;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
    text-transform: uppercase;
}

.block-rain-btn:hover {
    background-color: #ff5270;
}

/* Responsive Handling */
@media (max-width: 540px) {
    .block-rain-container {
        max-width: 340px;
        padding: 15px;
    }
    .block-rain-game-area {
        width: 100%;
        height: auto;
        max-height: 440px;
        float: none;
    }
    #blockRainCanvas {
        width: 100%;
        height: auto;
    }
    .block-rain-side-panel {
        width: 100%;
        margin-left: 0;
        margin-top: 15px;
        float: none;
    }
    .panel-box {
        display: inline-block;
        width: 48%;
        margin-right: 2%;
        vertical-align: top;
    }
    .panel-box:nth-child(2n) {
        margin-right: 0;
    }
    .controls-guide {
        display: block;
        width: 100%;
    }
}