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

:root {
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --text-main: #e0e0e0;
    --text-dim: #666680;
    --accent: #7c5ce7;
    --accent-glow: #9d7cff;
    --warning: #ff6b6b;
}

body {
    font-family: 'Courier New', monospace;
    background: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

#game-container {
    max-width: 800px;
    width: 100%;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 2.5rem;
    letter-spacing: 4px;
    color: var(--accent-glow);
    text-shadow: 0 0 20px var(--accent);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-dim);
    font-style: italic;
}

#universe-display {
    background: var(--bg-card);
    border: 1px solid #1a1a25;
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 24px;
    min-height: 250px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

#ascii-art {
    font-size: 10px;
    line-height: 1.2;
    color: var(--accent);
    text-align: center;
    margin-bottom: 20px;
    white-space: pre;
    text-shadow: 0 0 10px var(--accent);
}

#narrative {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.95rem;
    max-width: 600px;
    line-height: 1.6;
}

#stats {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.stat {
    background: var(--bg-card);
    padding: 12px 20px;
    border-radius: 6px;
    border: 1px solid #1a1a25;
}

.stat .label {
    color: var(--text-dim);
    margin-right: 8px;
}

.stat #weight {
    color: var(--accent-glow);
    font-weight: bold;
}

#actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-bottom: 24px;
}

button {
    background: var(--bg-card);
    color: var(--text-main);
    border: 1px solid var(--accent);
    padding: 12px 28px;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.2s ease;
}

button:hover:not(:disabled) {
    background: var(--accent);
    color: var(--bg-dark);
    box-shadow: 0 0 20px var(--accent);
}

button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

button:active:not(:disabled) {
    transform: scale(0.97);
}

#upgrades h3 {
    text-align: center;
    color: var(--text-dim);
    margin-bottom: 16px;
    font-weight: normal;
    letter-spacing: 2px;
}

#upgrade-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}

.upgrade {
    background: var(--bg-card);
    padding: 16px;
    border-radius: 6px;
    border: 1px solid #1a1a25;
    cursor: pointer;
    transition: all 0.2s ease;
}

.upgrade:hover {
    border-color: var(--accent);
}

.upgrade.locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.upgrade-name {
    color: var(--accent-glow);
    margin-bottom: 4px;
}

.upgrade-cost {
    font-size: 0.85rem;
    color: var(--text-dim);
}

footer {
    text-align: center;
    margin-top: 40px;
    color: var(--text-dim);
    font-size: 0.8rem;
}