:root {
    --bg-main: #050308;
    --bg-card: rgba(20, 15, 25, 0.95);
    --primary-color: #bc13fe;
    --secondary-color: #00f3ff;
    --accent-color: #00ff41;
    --text-main: #ccc;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.hidden {
    display: none !important;
}

body {
    font-family: 'Chakra Petch', sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100dvh;
}

.game-container {
    width: 100%;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    position: relative;
}

.controls {
    position: absolute;
    top: 20px;
    left: 20px;
    z-index: 10;
    display: flex;
    gap: 5px;
    background: var(--bg-card);
    padding: 10px;
    border-radius: 8px;
    border: 1px solid var(--primary-color);
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.3);
    backdrop-filter: blur(10px);
}

button {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 5px;
    cursor: pointer;
    font-family: 'Orbitron', sans-serif;
    font-size: 16px;
    font-weight: bold;
    min-width: 36px;
    transition: all 0.3s ease;
    box-shadow: 0 0 10px rgba(188, 19, 254, 0.5);
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0, 243, 255, 0.8);
}

button:active {
    transform: translateY(0);
}

.zoom-level {
    display: flex;
    align-items: center;
    color: var(--accent-color);
    font-weight: bold;
    padding: 0 10px;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
}

.hud-top-right {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.population-panel {
    background: var(--bg-card);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.3);
    backdrop-filter: blur(10px);
    padding: 12px;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--secondary-color);
    font-weight: bold;
}



.status-panel {
    background: var(--bg-card);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.3);
    backdrop-filter: blur(10px);
    width: 250px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.status-header {
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    color: var(--secondary-color);
    font-weight: bold;
}

.status-item {
    font-family: 'Chakra Petch', sans-serif;
    font-size: 11px;
    color: var(--text-main);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.status-label {
    color: var(--accent-color);
    font-weight: bold;
}

.status-value {
    color: var(--secondary-color);
}

.status-state {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: bold;
    background: rgba(0, 243, 255, 0.2);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.status-state.wandering {
    background: rgba(188, 19, 254, 0.2);
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.status-state.charging {
    background: rgba(0, 255, 65, 0.2);
    color: var(--accent-color);
    border-color: var(--accent-color);
}

#gameCanvas {
    display: block;
    cursor: url('data:image/svg+xml;base64,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') 16 16, auto;
    image-rendering: crisp-edges;
    image-rendering: pixelated;
}

/* Upgrade UI */
.upgrade-btn {
    background: rgba(0, 0, 0, 0.6);
    color: var(--accent-color);
    font-weight: 900;
    box-shadow: 0 0 5px var(--accent-color);
    margin-bottom: 10px;
    border: 1px solid var(--accent-color);
    display: block;
    width: 100%;
    text-shadow: 0 0 5px var(--accent-color);
    transition: all 0.3s ease;
}

.upgrade-btn:hover {
    background: rgba(0, 243, 255, 0.1);
    box-shadow: 0 0 15px var(--accent-color);
}

.upgrade-btn.hidden,
.modal-overlay.hidden {
    display: none !important;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--primary-color);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 0 50px rgba(188, 19, 254, 0.5);
    text-align: center;
    max-width: 800px;
    width: 90%;
}

.modal-content h2 {
    color: var(--secondary-color);
    font-family: 'Orbitron', sans-serif;
    margin-bottom: 10px;
    font-size: 24px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.modal-content p {
    margin-bottom: 25px;
    color: var(--text-main);
}

/* Radial UI Base */
.radial-ui {
    background: rgba(20, 10, 30, 0.95);
    border: 2px solid var(--accent-color);
    width: 600px;
    height: 600px;
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    box-shadow: 0 0 50px rgba(0, 243, 255, 0.3);
}

.modal-header {
    text-align: center;
    margin-bottom: 20px;
    width: 100%;
    margin-top: 20px;
}

.points-display {
    font-size: 18px;
    color: #ccc;
}

.points-display .highlight {
    color: var(--accent-color);
    font-size: 24px;
    font-weight: bold;
    text-shadow: 0 0 10px var(--accent-color);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: transparent;
    border: 1px solid #fff;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: #fff;
    box-shadow: none;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px #fff;
}

/* Radial Container */
.radial-container {
    position: relative;
    width: 400px;
    height: 400px;
    margin-top: 20px;
}

.core-hub {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 20px var(--primary-color);
    z-index: 10;
}

.core-inner {
    font-weight: bold;
    color: #fff;
    font-size: 18px;
    letter-spacing: 2px;
}

/* Rings */
.tier {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, 0.1);
}

.ring-1 {
    width: 200px;
    height: 200px;
    border-color: rgba(188, 19, 254, 0.4);
}

.ring-2 {
    width: 360px;
    height: 360px;
    border-color: rgba(0, 243, 255, 0.4);
}

/* Nodes */
.node-wrapper {
    position: absolute;
    width: 50px;
    height: 50px;
    transform: translate(-50%, -50%);
}

.ring-1 .pos-top {
    top: 0;
    left: 50%;
}

.ring-1 .pos-right {
    top: 50%;
    left: 100%;
}

.ring-1 .pos-bottom {
    top: 100%;
    left: 50%;
}

.ring-1 .pos-left {
    top: 50%;
    left: 0;
}

.ring-2 .pos-top {
    top: 0;
    left: 50%;
}

.ring-2 .pos-right {
    top: 50%;
    left: 100%;
}

.ring-2 .pos-bottom {
    top: 100%;
    left: 50%;
}

.ring-2 .pos-left {
    top: 50%;
    left: 0;
}

.node-wrapper .node {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    border: 2px solid transparent;
    background: rgba(0, 0, 0, 0.8);
    color: #fff;
    font-family: 'Orbitron', sans-serif;
    font-size: 12px;
    font-weight: bold;
    cursor: pointer;
    box-shadow: none;
    transition: all 0.3s ease;
    padding: 0;
    min-width: auto;
}

.node-wrapper .node.locked {
    border-color: #555;
    color: #555;
    background: #111;
    cursor: not-allowed;
}

.node-wrapper .node.available {
    border-color: var(--accent-color);
    color: var(--accent-color);
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
    animation: pulseAvailable 2s infinite;
}

.node-wrapper .node.available:hover {
    background: rgba(0, 243, 255, 0.2);
    transform: scale(1.1);
}

.node-wrapper .node.unlocked {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 0 20px var(--primary-color);
    cursor: default;
}

@keyframes pulseAvailable {
    0% {
        box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
    }

    50% {
        box-shadow: 0 0 20px rgba(0, 243, 255, 0.8);
    }

    100% {
        box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
    }
}

.upgrade-btn.can-upgrade {
    animation: btnPulse 1.5s infinite;
    background: rgba(0, 243, 255, 0.2);
    color: #fff;
    text-shadow: none;
}

@keyframes btnPulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 10px var(--accent-color);
    }

    50% {
        transform: scale(1.05);
        box-shadow: 0 0 25px var(--accent-color);
    }

    100% {
        transform: scale(1);
        box-shadow: 0 0 10px var(--accent-color);
    }
}
/* Mobile Optimization */
@media (max-width: 768px) {
    .hud-top-right {
        top: 10px;
        right: 10px;
        left: 10px;
        flex-direction: column;
        align-items: stretch;
    }

    .status-panel {
        width: auto;
    }

    .population-panel {
        font-size: 12px;
        padding: 8px;
    }

    .upgrade-btn {
        padding: 12px;
        font-size: 14px;
    }

    .modal-content {
        padding: 15px;
    }

    .radial-ui {
        width: 100%;
        height: auto;
        aspect-ratio: 1 / 1;
        max-width: 350px;
        max-height: 350px;
    }

    .radial-container {
        width: 100%;
        height: 100%;
        max-width: 300px;
        max-height: 300px;
        margin-top: 10px;
    }

    .ring-1 {
        width: 150px;
        height: 150px;
    }

    .ring-2 {
        width: 250px;
        height: 250px;
    }

    .node-wrapper {
        width: 40px;
        height: 40px;
    }

    .node-wrapper .node {
        font-size: 10px;
    }
}

/* Bottom Stats Bar */
.stats-bottom-bar {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 20px;
    background: var(--bg-card);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(188, 19, 254, 0.3);
    backdrop-filter: blur(10px);
    padding: 10px 20px;
    font-family: 'Orbitron', sans-serif;
    font-size: 14px;
    color: var(--secondary-color);
    font-weight: bold;
    z-index: 10;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .stats-bottom-bar {
        bottom: 10px;
        width: calc(100% - 20px);
        justify-content: space-around;
        padding: 8px;
        font-size: 12px;
        gap: 10px;
    }
}