* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Inter, system-ui, sans-serif;
}

:root {
    --bg: #0f172a;
    --surface: #1e293b;
    --surface-hover: #334155;
    --border: rgba(255, 255, 255, 0.08);
    --text: #f8fafc;
    --text-secondary: #cbd5e1;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
}

body {
    background-color: var(--bg);
    color: var(--text);
    padding: 40px;
    min-height: 100vh;
}

h2 {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text);
}

.group {
    margin-bottom: 50px;
}

.group-header::before {
    content: "";
    width: 7px;
    height: 25px;
    border-radius: 999px;
    background: linear-gradient(135deg,
            var(--accent-blue),
            var(--accent-purple));
}

.group-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 20px;
}

.card-button {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(30, 41, 59, 0.85);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 22px;
    transition:
        transform 0.25s ease,
        box-shadow 0.25s ease,
        border-color 0.25s ease,
        background 0.25s ease;
    box-shadow:
        0 10px 30px rgba(0, 0, 0, 0.35);
}

.card-button:hover {
    transform: translateY(-6px);
    background: var(--surface-hover);
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow:
        0 18px 40px rgba(0, 0, 0, 0.45),
        0 0 25px rgba(59, 130, 246, 0.18);
}

.card-button img {
    width: 75px;
    height: 75px;
    object-fit: cover;
    border-radius: 14px;
    margin-bottom: 14px;
}

.card-title {
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

.card-button {
    position: relative;
}

@media (max-width: 768px) {
    body {
        padding: 20px;
    }

    .button-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    }
}