* {
    margin: 0;
    line-height: 150%;
    box-sizing: border-box;
}

:root {
    --primary-color: #89BA17;
    --primary-dark: #6a9012;
    --primary-light: #a0d01f;
    --bg-gradient-start: #89BA17;
    --bg-gradient-end: #6a9012;
    --text-dark: #333;
    --text-light: #666;
    --bg-white: #ffffff;
    --bg-gray: #f8f9fa;
    --border-color: #e0e0e0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(137, 186, 23, 0.3);
    --connection-line: #89BA17;
}

[data-theme="dark"] {
    --primary-color: #89BA17;
    --primary-dark: #a0d01f;
    --primary-light: #6a9012;
    --bg-gradient-start: #2a2a2a;
    --bg-gradient-end: #1a1a1a;
    --text-dark: #e0e0e0;
    --text-light: #a0a0a0;
    --bg-white: #2a2a2a;
    --bg-gray: #1f1f1f;
    --border-color: #404040;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(137, 186, 23, 0.4);
    --connection-line: #89BA17;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --primary-color: #89BA17;
        --primary-dark: #a0d01f;
        --primary-light: #6a9012;
        --bg-gradient-start: #2a2a2a;
        --bg-gradient-end: #1a1a1a;
        --text-dark: #e0e0e0;
        --text-light: #a0a0a0;
        --bg-white: #2a2a2a;
        --bg-gray: #1f1f1f;
        --border-color: #404040;
        --shadow-color: rgba(0, 0, 0, 0.3);
        --shadow-hover: rgba(137, 186, 23, 0.4);
        --connection-line: #89BA17;
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    color: var(--text-dark);
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: 0 20px 60px var(--shadow-color);
    overflow: hidden;
    margin-top: 80px;
}

header {
    background: var(--bg-gray);
    color: var(--text-dark);
    padding: 30px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: var(--text-dark);
}

h2 {
    font-size: 1.5em;
    margin-bottom: 25px;
    margin-top: 40px;
    padding-bottom: 15px;
    border-bottom: 3px solid var(--primary-color);
}

h2:first-child {
    margin-top: 0;
}

h3 {
    font-size: 1.2em;
    margin-bottom: 20px;
    margin-top: 30px;
}

ul, li {
    margin: .5rem;
}

.controls {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 15px;
    padding: 15px 20px;
    background: var(--bg-gray);
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    z-index: 100;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.controls-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-end;
    flex: 1;
}

#darkModeToggle {
    padding: 0;
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    color: var(--text-dark);
    width: 44px;
    height: 44px;
    min-width: 44px;
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

#darkModeToggle svg {
    width: 24px;
    height: 24px;
    fill: var(--text-dark);
    transition: fill 0.3s ease;
}

#darkModeToggle:hover {
    background: var(--bg-gray);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

#darkModeToggle:hover svg {
    fill: var(--primary-color);
}

button {
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    background: var(--primary-color);
    color: white;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

button.active {
    background: var(--primary-dark);
}

.content {
    min-height: 400px;
    padding: 40px 20px;
}

.player-deleted {
    text-decoration: line-through;
    opacity: 0.6;
}

@media (max-width: 768px) {
    body {
        padding-top: 150px;
    }

    .container {
        margin-top: 0;
    }

    .controls {
        padding: 15px;
        gap: 10px;
    }

    .controls-buttons {
        width: 100%;
    }

    .controls-buttons button:not(#darkModeToggle) {
        flex: 1;
    }
}