:root {
    --bg-color: #0d0d0d;
    /* Deep Black */
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #ECECF1;
    --text-secondary: #9CA3AF;
    --brand-primary: #635BFF;
    /* Purple/Blue */
    --brand-secondary: #00D4FF;
    /* Cyan */
    --hover-bg: rgba(255, 255, 255, 0.06);
    --hover-border: var(--brand-secondary);
    --accent-gradient: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(99, 91, 255, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 40%);
}

.container {
    width: 100%;
    max-width: 1000px;
    text-align: center;
}

.logo-container {
    margin-bottom: 3.5rem;
}

.brand-logo-img {
    max-width: 300px;
    height: auto;
    display: block;
    margin: 0 auto;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1.75rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
    cursor: pointer;
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.card:hover {
    background-color: var(--hover-bg);
    border-color: rgba(99, 91, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x) var(--mouse-y), rgba(255, 255, 255, 0.03), transparent 40%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 1;
}

.card:hover::before {
    opacity: 1;
}

.top-row {
    display: flex;
    width: 100%;
    justify-content: space-between;
    align-items: center;
    z-index: 2;
}

.icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 8px;
    transition: background 0.3s;
}

.icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: grayscale(100%) brightness(1.2);
    transition: filter 0.3s;
}

.card:hover .icon {
    background: rgba(255, 255, 255, 0.1);
}

.card:hover .icon img {
    filter: grayscale(0%) brightness(1);
}

.card h2 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    z-index: 2;
}

.card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    text-align: left;
    margin: 0;
    z-index: 2;
}

.arrow {
    opacity: 0.3;
    transition: all 0.3s;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.card:hover .arrow {
    opacity: 1;
    transform: translateX(4px);
    color: var(--brand-secondary);
}

footer {
    margin-top: 5rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    opacity: 0.6;
    border-top: 1px solid var(--card-border);
    padding-top: 2rem;
    width: 100%;
    text-align: center;
}

/* Specific styling for SVGs inline if needed */
.icon svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}