:root {
    --bg: #000000;
    --text: #ffffff;
    --border: #333333;
    --card-hover: #111111;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

/* Header Section */
header {
    margin-bottom: 5rem;
    text-align: center;
}

.logo {
    font-size: 0.875rem;
    font-weight: 800;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    display: inline-block;
    border: 1px solid var(--text);
    padding: 0.5rem 1rem;
}

h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    margin-bottom: 1rem;
}

.subtitle {
    font-size: 1.125rem;
    font-weight: 300;
    color: #888;
    max-width: 600px;
    margin: 0 auto;
}

/* App Grid */
#app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.app-card {
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--border);
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    background: transparent;
}

.app-card:hover {
    border-color: var(--text);
    background: var(--card-hover);
    transform: translateY(-5px);
}

.app-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 1.5rem;
    filter: grayscale(1);
    transition: var(--transition);
    border-radius: 20px;
    object-fit: cover;
}

.app-card:hover .app-icon {
    filter: grayscale(0);
    transform: scale(1.1);
}

.app-title {
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
}

.badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-size: 0.65rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    border: 1px solid var(--border);
    padding: 0.25rem 0.5rem;
    color: #666;
}

.app-card:hover .badge {
    color: var(--text);
    border-color: var(--text);
}

/* Loading & Empty States */
.loading-state,
.error-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem;
    font-size: 1.25rem;
    color: #555;
}

/* Footer */
footer {
    margin-top: 10rem;
    padding: 2rem;
    text-align: center;
    font-size: 0.875rem;
    color: #444;
    border-top: 1px solid var(--border);
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.app-card {
    animation: fadeIn 0.6s ease forwards;
}

/* Responsive Fixes */
@media (max-width: 600px) {
    .container {
        padding: 2rem 1.5rem;
    }

    header {
        margin-bottom: 3rem;
    }

    .app-card {
        padding: 1.5rem;
    }
}