body {
    margin: 0;
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    width: 100vw;
    font-family: 'Courier New', monospace;
    overflow: hidden;
    color: white;
    user-select: none;
}

#gameContainer {
    position: relative;
    width: 800px;
    height: 600px;
    background: #000;
    box-shadow: 0 0 100px rgba(0, 0, 0, 0.9);
    transform-origin: center center;
}

#gameCanvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: none;
}

.ui-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    z-index: 20;
}

.pointer-events-auto {
    pointer-events: auto;
}

#hud {
    width: 100%;
    padding-top: 20px;
    display: none;
}

.hud-top {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    box-sizing: border-box;
    align-items: center;
}

.bar-container {
    width: 320px;
    height: 18px;
    background: #111;
    border: 2px solid #444;
    position: relative;
    transform: skewX(-20deg);
    box-shadow: 0 0 10px rgba(0,0,0,0.5);
}

.hp-bar {
    height: 100%;
    transition: width 0.1s linear;
}

.hud-energy {
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 4px 30px 0;
    box-sizing: border-box;
    align-items: center;
}

.energy-label {
    font-size: 9px;
    color: #ff0;
    letter-spacing: 2px;
    text-shadow: 0 0 4px #ff0;
}

.energy-container {
    width: 320px;
    height: 8px;
    background: #111;
    border: 1px solid #333;
    position: relative;
    transform: skewX(-20deg);
}

.energy-bar {
    height: 100%;
    background: #ff0;
    box-shadow: 0 0 6px #ff0;
    transition: width 0.15s linear;
    width: 100%;
}

#p1-hp {
    background: #0ff;
    width: 100%;
    float: left;
    box-shadow: 0 0 5px #0ff;
}

#p2-hp {
    background: #f0f;
    width: 100%;
    float: right;
    box-shadow: 0 0 5px #f0f;
}

#vs-badge {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 5px #fff;
}

#pause-btn {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 20px;
    cursor: pointer;
    pointer-events: auto;
    color: #555;
    transition: 0.2s;
    z-index: 30;
}

#pause-btn:hover {
    color: #fff;
}

#enemy-name-display {
    position: absolute;
    top: 50px;
    right: 30px;
    font-size: 16px;
    color: #f0f;
    text-shadow: 0 0 5px #f0f;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.screen {
    background: rgba(0, 0, 0, 0.95);
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    backdrop-filter: blur(8px);
    z-index: 100;
    cursor: default;
}

h1 {
    font-size: 60px;
    color: #0ff;
    margin: 0;
    letter-spacing: 5px;
}

h2 {
    font-size: 30px;
    color: #fff;
    margin-bottom: 30px;
}

p {
    font-size: 18px;
    max-width: 600px;
    line-height: 1.5;
    color: #ccc;
    margin-bottom: 30px;
}

.btn {
    background: rgba(0, 255, 255, 0.05);
    border: 2px solid #0ff;
    color: #0ff;
    padding: 15px 40px;
    font-family: 'Courier New', monospace;
    font-size: 20px;
    cursor: pointer;
    transition: 0.2s;
    text-transform: uppercase;
    margin: 10px;
    box-shadow: 0 0 15px rgba(0, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
    letter-spacing: 2px;
    min-width: 250px;
}

.btn:hover {
    background: #0ff;
    color: #000;
    box-shadow: 0 0 30px #0ff;
    transform: scale(1.05);
}

.btn-red {
    border-color: #f00;
    color: #f00;
    background: rgba(255, 0, 0, 0.05);
    box-shadow: 0 0 15px rgba(255, 0, 0, 0.1);
}

.btn-red:hover {
    background: #f00;
    color: #000;
    box-shadow: 0 0 30px #f00;
}

#battle-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.boss-card {
    border: 1px solid #333;
    padding: 15px;
    cursor: pointer;
    transition: 0.2s;
    background: rgba(255,255,255,0.05);
}

.boss-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: #fff;
}

.boss-card h3 {
    margin: 0 0 5px 0;
    font-size: 16px;
}

.boss-card span {
    font-size: 30px;
    display: block;
    margin-bottom: 5px;
}

.boss-difficulty {
    font-size: 11px;
    color: #f0f;
    letter-spacing: 1px;
    margin-top: 4px;
    text-shadow: 0 0 4px #f0f;
}

.boss-difficulty .star {
    color: #ff0;
    text-shadow: 0 0 4px #ff0;
}

.boss-difficulty .star-empty {
    color: #333;
}

#dialogue-box {
    position: absolute;
    bottom: 50px;
    width: 700px;
    background: rgba(0, 20, 20, 0.95);
    border: 2px solid #fff;
    padding: 20px;
    display: flex;
    align-items: center;
    cursor: pointer;
}

#dialogue-portrait {
    width: 80px;
    height: 80px;
    border: 2px solid #fff;
    margin-right: 20px;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    flex-shrink: 0;
}

#dialogue-content {
    text-align: left;
    flex-grow: 1;
}

#speaker-name {
    font-size: 14px;
    color: #aaa;
    margin-bottom: 5px;
    text-transform: uppercase;
}

#speaker-text {
    font-size: 18px;
    color: #fff;
    line-height: 1.4;
}

#skip-hint {
    position: absolute;
    bottom: 5px;
    right: 10px;
    font-size: 10px;
    color: #666;
}

#system-log-screen {
    font-family: 'Courier New', monospace;
    background: #000;
    color: #0f0;
    align-items: flex-start;
    padding: 50px;
    box-sizing: border-box;
    text-align: left;
}

.log-entry {
    margin-bottom: 10px;
    opacity: 0;
    animation: fadeIn 0.5s forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

#ending-screen {
    background: rgba(0, 0, 0, 0.97);
    z-index: 200;
}

#ending-screen h1 {
    font-size: 52px;
    color: #0ff;
    text-shadow: 4px 4px 0 #f0f, 0 0 30px #0ff;
    animation: endingPulse 2s ease-in-out infinite;
}

#ending-screen p {
    color: #aaa;
    font-size: 16px;
    margin-bottom: 40px;
}

@keyframes endingPulse {
    0%, 100% { text-shadow: 4px 4px 0 #f0f, 0 0 30px #0ff; }
    50%       { text-shadow: 4px 4px 0 #f0f, 0 0 60px #0ff, 0 0 80px #0ff; }
}

.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 999;
    opacity: 0.3;
    background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0) 50%, rgba(0,0,0,0.3) 50%, rgba(0,0,0,0.3));
}