:root {
    --primary: #007bff;
    --primary-dark: #0056b3;
    --success: #28a745;
    --danger: #dc3545;
    --dark: #1e1e1e;
    --gray: #666;
    --light-gray: #f0f0f0;
}

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

body {
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 16px;
    background-color: var(--light-gray);
    color: var(--dark);
    line-height: 1.5;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.logo-icon {
    flex-shrink: 0;
}

h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--dark);
    margin: 0;
}

.add-form {
    display: grid;
    grid-template-columns: 2fr 2fr 1fr;
    gap: 12px;
    margin-bottom: 24px;
}

@media (max-width: 480px) {
    .add-form {
        grid-template-columns: 1fr;
    }
}

.name-input, .radio-id-input {
    min-width: 0;
}

input {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 14px;
    flex: 1;
    transition: border-color 0.2s;
}

input:focus {
    outline: none;
    border-color: var(--primary);
}

button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

button:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.radio-list {
    margin-top: 24px;
}

.countdown {
    background: var(--light-gray);
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-size: 14px;
}

.radio-item {
    display: grid;
    grid-template-columns: 2fr 2fr auto auto;
    gap: 8px;
    padding: 8px 12px;
    border: 1px solid #eee;
    border-radius: 6px;
    margin-bottom: 8px;
    transition: all 0.2s;
    align-items: center;
}

.radio-item:hover {
    border-color: var(--primary);
    background: #f8f9fa;
}

.radio-name, .radio-id {
    min-width: 0;
    padding: 6px 10px;
    height: 32px;
}

.play-btn, .remove-btn {
    padding: 6px 12px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.play-btn {
    background: var(--success);
    padding: 8px 16px;
    min-width: 40px;
}

.remove-btn {
    background: var(--danger);
    padding: 8px 16px;
}

.terminal {
    margin-top: 24px;
    background: var(--dark);
    border-radius: 8px;
    overflow: hidden;
}

.terminal-header {
    background: #333;
    color: white;
    padding: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.terminal-content {
    color: #00ff00;
    font-family: 'Menlo', monospace;
    padding: 16px;
    height: 240px;
    overflow-y: auto;
    font-size: 13px;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .container {
        padding: 16px;
    }
    
    .radio-item {
        flex-wrap: wrap;
    }
    
    .radio-name, .radio-id {
        width: 100%;
    }
    
    .terminal-content {
        height: 180px;
    }
}