/* CSS Variables for Theme System */
:root {
    --bg-color: #000;
    --text-color: #fff;
    --border-color: #fff;
}

[data-theme="light"] {
    --bg-color: #fff;
    --text-color: #000;
    --border-color: #000;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.5;
    padding: 40px 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

/* Layout */
.container {
    max-width: 800px;
    margin: 0 auto;
}

.container.center {
    text-align: center;
}

/* Typography */
h1 {
    font-size: 48px;
    font-weight: 400;
    letter-spacing: -1px;
    margin-bottom: 40px;
    text-transform: uppercase;
}

.hero-title {
    margin-bottom: 60px;
}

/* Navigation */
.nav-links {
    margin-bottom: 60px;
}

.nav-link {
    display: inline-block;
    color: var(--text-color);
    text-decoration: none;
    font-size: 14px;
    font-weight: 400;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
    transition: border-color 0.2s ease;
}

.nav-link.block {
    display: block;
    font-size: 18px;
    margin-bottom: 20px;
}

.nav-link:hover {
    border-bottom-color: var(--border-color);
}

/* Game Styles */
canvas {
    border: 2px solid var(--border-color);
    margin: 20px 0;
}

.score {
    font-size: 18px;
    font-weight: 400;
    margin: 20px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.controls {
    margin: 20px 0;
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.game-over {
    color: var(--text-color);
    font-size: 18px;
    font-weight: 400;
    margin: 20px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Audio Player */
audio {
    margin: 40px 0;
    outline: none;
}

/* Artwork display styles */
.artwork-container {
    margin: 40px 0 20px 0;
}

.artwork {
    max-width: 300px;
    width: 100%;
    height: auto;
    border: 2px solid var(--border-color);
    display: block;
    margin: 0 auto;
}

.song-info {
    margin: 20px 0;
}

.day-indicator {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 10px;
}

.song-title {
    font-size: 24px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
}

/* Game Button */
.game-button {
    background: none;
    border: 2px solid var(--border-color);
    color: var(--text-color);
    padding: 12px 24px;
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    cursor: pointer;
    margin: 20px 0;
    transition: all 0.3s ease;
    font-family: inherit;
}

.game-button:hover {
    background-color: var(--text-color);
    color: var(--bg-color);
}

/* Loader */
#loader {
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top: 2px solid transparent;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 40px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Footer */
.footer {
    margin-top: 60px;
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.6;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.footer.spaced {
    margin-top: 100px;
}

/* Responsive Design */
@media (max-width: 600px) {
    h1 {
        font-size: 32px;
    }
    #loader {
        width: 30px;
        height: 30px;
    }
    body {
        padding: 20px 5px;
    }
    .theme-toggle {
        top: 10px;
        right: 10px;
        padding: 6px 10px;
        font-size: 11px;
    }
    .container {
        max-width: 100vw;
    }
    canvas {
        width: 100% !important;
        height: auto !important;
        max-width: 100vw;
        min-width: 0;
    }
    .artwork {
        max-width: 90vw;
    }
}

/* Performance: image/audio hints */
img, audio, video {
    content-visibility: auto;
}

/* Minimal Animations */
.theme-toggle, .game-button, .nav-link, .artwork, .footer {
    transition: background 0.2s, color 0.2s, border-color 0.2s, opacity 0.2s;
}

/* Podcast Page Styles */
.subtitle {
    font-size: 24px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 60px;
    opacity: 0.8;
}

.coming-soon {
    margin: 80px 0;
}

.status-text {
    font-size: 32px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 40px;
    border: 2px solid var(--border-color);
    padding: 20px 40px;
    display: inline-block;
}

.description {
    font-size: 16px;
    line-height: 1.6;
    opacity: 0.7;
    margin-top: 40px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 600px) {
    .status-text {
        font-size: 24px;
        padding: 15px 25px;
        letter-spacing: 1px;
    }
    
    .subtitle {
        font-size: 18px;
    }
    
    .description {
        font-size: 14px;
        padding: 0 10px;
    }
}

/* Keyboard Accessibility */
button, .nav-link, .game-button, .theme-toggle, a {
    outline: none;
}
button:focus, .nav-link:focus, .game-button:focus, .theme-toggle:focus, a:focus {
    outline: 2px dashed var(--border-color);
    outline-offset: 2px;
}