:root {
    --bg-color: #050510;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent-red: #ff3333;
    --accent-green: #33ff33;
    --accent-orange: #ffaa33;
    --terminal-font: 'Courier New', Courier, monospace;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    user-select: none;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--terminal-font);
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

/* CRT Effects */
.scanlines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom,
            rgba(255, 255, 255, 0),
            rgba(255, 255, 255, 0) 50%,
            rgba(0, 0, 0, 0.2) 50%,
            rgba(0, 0, 0, 0.2));
    background-size: 100% 4px;
    pointer-events: none;
    z-index: 100;
    opacity: 0.4;
}

.vignette {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle,
            rgba(0, 0, 0, 0) 50%,
            rgba(0, 0, 0, 0.8) 100%);
    pointer-events: none;
    z-index: 99;
}

/* HUD Layout */
#hud {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 50;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 20px;
}

/* Header */
.top-bar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.identity-block h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
    text-shadow: 0 0 5px var(--text-primary);
}

.identity-block p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.resources-block {
    text-align: right;
    background: rgba(0, 0, 0, 0.7);
    padding: 15px;
    border: 1px solid var(--text-secondary);
}

.resource-row {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.resource-row span {
    font-weight: bold;
}

.data-bits {
    color: var(--accent-green);
    text-shadow: 0 0 5px var(--accent-green);
}

.cpu-power {
    color: var(--accent-orange);
}

/* Interaction Panel */
.panel {
    background: rgba(0, 5, 20, 0.85);
    border: 1px solid var(--text-secondary);
    padding: 15px;
    pointer-events: auto;
    /* Enable clicking */
    max-width: 300px;
}

.target-panel {
    position: absolute;
    bottom: 20px;
    right: 20px;
    width: 300px;
    display: none;
    /* Hidden strictly by default */
}

.panel-header {
    border-bottom: 1px solid var(--text-secondary);
    padding-bottom: 5px;
    margin-bottom: 10px;
    font-weight: bold;
    color: var(--accent-orange);
}

.progress-bar-container {
    width: 100%;
    height: 10px;
    background: #222;
    margin: 10px 0;
    border: 1px solid #444;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background: var(--accent-orange);
    transition: width 0.1s;
}

.btn {
    background: transparent;
    border: 1px solid var(--text-primary);
    color: var(--text-primary);
    padding: 8px 15px;
    cursor: pointer;
    width: 100%;
    font-family: inherit;
    text-transform: uppercase;
    transition: all 0.2s;
    margin-top: 5px;
}

.btn:hover {
    background: var(--text-primary);
    color: var(--bg-color);
}

.btn:disabled {
    border-color: #444;
    color: #444;
    cursor: not-allowed;
    background: transparent;
}

/* Upgrade Panel */
.upgrade-panel {
    position: absolute;
    bottom: 20px;
    left: 20px;
}

.upgrade-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.8rem;
}

.upgrade-btn {
    background: rgba(0, 255, 0, 0.1);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    padding: 2px 8px;
    cursor: pointer;
    font-size: 0.8rem;
    margin-left: 10px;
}

.upgrade-btn:hover {
    background: var(--accent-green);
    color: black;
}

/* Tooltip/Floating Text */
.status-msg {
    position: absolute;
    color: white;
    font-size: 12px;
    pointer-events: none;
    text-shadow: 0 0 2px black;
}

#canvas {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* Prestige Modal */
#prestige-modal {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 200;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
}

#prestige-modal h2 {
    color: var(--accent-red);
    font-size: 3rem;
    margin-bottom: 20px;
    animation: blinker 2s infinite;
}

@keyframes blinker {
    50% {
        opacity: 0.5;
    }
}