:root {
    --primary: #7c3aed;
    --secondary: #00bfa5;
    --background: #0f172a;
    --surface: #1e293b;
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --hover: #334155;

    --shadow-layer-1: 0 1px 3px rgba(0,0,0,0.12);
    --shadow-layer-2: 0 4px 6px -1px rgba(0,0,0,0.15);
    --shadow-layer-3: 0 10px 15px -3px rgba(0,0,0,0.18);
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    background-color: var(--background);
    color: var(--text);
    padding: 1rem;
    max-width: 100%;
    margin: 0 auto;
    min-height: 100vh;
}

h2 {
    color: var(--primary);
    font-size: 2rem;
    text-align: center;
    margin-bottom: 1rem;
}

.config-section {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-layer-1);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

label {
    display: block;
    font-size: 1rem;
    color: var(--text-secondary);
}

input[type="number"] {
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 0.5rem;
    font-size: 1rem;
    background: var(--surface);
    color: var(--text);
    width: 100%;
}

button {
    background-color: var(--primary);
    color: white;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
}

button:hover {
    background-color: #6d28d9;
    transform: translateY(-1px);
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    margin: 1.5rem 0;
    border-radius: 0.5rem;
    overflow: hidden;
}

th, td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

th {
    background-color: var(--primary);
    color: white;
    text-align: center;
    font-size: 1rem;
}

tr:hover {
    background-color: var(--hover);
}

.warning {
    color: #f59e0b;
    background-color: #1e293b;
    padding: 1rem;
    border-radius: 0.5rem;
    text-align: center;
}

/* Media Queries pentru dispozitive mici */
@media (max-width: 768px) {
    h2 {
        font-size: 1.5rem;
    }

    .config-section {
        padding: 1rem;
    }

    input[type="number"] {
        font-size: 0.9rem;
        padding: 0.5rem;
    }

    button {
        font-size: 0.9rem;
        padding: 0.5rem 0.75rem;
    }

    table th, table td {
        padding: 0.5rem;
        font-size: 0.8rem;
    }

    .warning {
        font-size: 0.9rem;
        padding: 0.75rem;
    }
}

/* Media Queries pentru dispozitive foarte mici (telefoane sub 480px) */
@media (max-width: 480px) {
    h2 {
        font-size: 1.2rem;
    }

    .config-section {
        padding: 0.75rem;
    }

    input[type="number"] {
        font-size: 0.8rem;
        padding: 0.5rem;
    }

    button {
        font-size: 0.8rem;
        padding: 0.5rem;
    }

    table th, table td {
        padding: 0.4rem;
        font-size: 0.75rem;
    }

    .warning {
        font-size: 0.8rem;
        padding: 0.5rem;
    }
}