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

:root {
    --bg-dark: #0a0e27;
    --bg-medium: #1a1f3a;
    --bg-light: #2a2f4a;
    --text-primary: #e0e6ff;
    --text-secondary: #a0a6bf;
    --accent-blue: #4a9eff;
    --accent-purple: #9d4eff;
    --accent-orange: #ff8c4a;
    --border-color: #3a3f5a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

#game-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    background: var(--bg-medium);
    padding: 10px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 20px;
}

header h1 {
    font-size: 1.2rem;
    margin: 0;
    color: var(--accent-blue);
}

header resource-display {
    flex: 1;
}

#resource-display {
    display: flex;
    align-items: baseline;
    gap: 20px;
}

.resource-value {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.resource-amount {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-orange);
}

.resource-label {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.resource-rate {
    font-size: 1.2rem;
    color: var(--accent-blue);
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

section {
    background: var(--bg-medium);
    padding: 20px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

section h2 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent-purple);
}

#orbit-visualization {
    width: 100%;
    aspect-ratio: 1;
    background: radial-gradient(circle at center, var(--bg-dark), var(--bg-light));
    border-radius: 8px;
    margin-bottom: 15px;
    position: relative;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

#orbit-visualization svg {
    filter: drop-shadow(0 0 10px rgba(74, 158, 255, 0.3));
}

.core {
    filter: drop-shadow(0 0 8px rgba(74, 158, 255, 0.8));
}

.celestial-body {
    filter: drop-shadow(0 0 4px currentColor);
    transition: r 0.3s ease;
}

.body-glow {
    transition: opacity 0.5s ease;
}

#orbital-status {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.orbital-body-status {
    background: var(--bg-light);
    padding: 10px;
    border-radius: 4px;
    border-left: 3px solid var(--accent-blue);
}

.body-name {
    font-weight: bold;
    margin-bottom: 5px;
}

.body-effect {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.body-timing {
    font-size: 0.85rem;
    color: var(--accent-orange);
    margin-top: 5px;
}

#machine-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.machine-card {
    background: var(--bg-light);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.machine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.machine-name {
    font-size: 1.2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    background: var(--accent-blue);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 18px;
    font-size: 0.75rem;
    cursor: help;
    transition: all 0.2s;
}

.info-icon:hover {
    background: var(--accent-purple);
    transform: scale(1.1);
}

.machine-count {
    font-size: 1rem;
    color: var(--text-secondary);
}

.machine-description {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 10px;
}

.machine-stats {
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-bottom: 10px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.machine-production,
.machine-effect,
.machine-cost {
    display: flex;
    justify-content: space-between;
}

.machine-effect {
    color: var(--accent-purple);
    font-weight: 500;
}

/* Tooltip styles */
.tooltip {
    position: fixed;
    background: var(--bg-dark);
    color: var(--text-primary);
    padding: 10px 12px;
    border-radius: 6px;
    border: 1px solid var(--accent-blue);
    max-width: 300px;
    font-size: 0.85rem;
    line-height: 1.4;
    z-index: 1000;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.buy-button {
    width: 100%;
    padding: 10px;
    background: var(--accent-blue);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.2s;
}

.buy-button:hover {
    background: #5aadff;
    transform: translateY(-1px);
}

.buy-button:active {
    transform: translateY(0);
}

.buy-button:disabled {
    background: var(--bg-medium);
    color: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
}

footer {
    background: var(--bg-medium);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

#game-info {
    display: flex;
    gap: 10px;
    justify-content: center;
}

#save-button,
#reset-button {
    padding: 8px 16px;
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
}

#save-button:hover,
#reset-button:hover {
    background: var(--bg-medium);
    border-color: var(--accent-blue);
}

#reset-button:hover {
    border-color: var(--accent-orange);
}

@media (max-width: 768px) {
    main {
        grid-template-columns: 1fr;
    }

    .resource-amount {
        font-size: 2rem;
    }

    header h1 {
        font-size: 1.5rem;
    }
}