:root {
    --bg-body: #1a1b26;
    --bg-gradient: radial-gradient(circle at 50% 0%, #2a2d3d 0%, #1a1b26 60%, #111218 100%);
    --card-bg: rgba(30, 31, 46, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b4b4b4;
    --accent-blue: #3b82f6;
    --accent-blue-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    --accent-gold: #ffd700;
    --glass-bg: rgba(255, 255, 255, 0.03);
    --shadow-premium: 0 20px 50px rgba(0, 0, 0, 0.5);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-body);
    background-image: var(--bg-gradient);
    background-size: cover;
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow-x: hidden;
}

/* Background Pattern */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    z-index: -1;
    pointer-events: none;
}

.container {
    max-width: 1000px;
    width: 90%;
    text-align: center;
    padding: 2rem 0;
}

header {
    margin-bottom: 4rem;
    animation: fadeInDown 1s ease-out;
}

.logo {
    height: 80px;
    width: auto;
    max-width: 100%;
    object-fit: contain;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

h1 {
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 1rem;
    background: linear-gradient(to bottom, #fff 0%, #aaa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tagline {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Controller Selection Grid */
.selection-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 1rem;
}

.controller-card {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: var(--shadow-premium);
    position: relative;
    overflow: hidden;
}

.controller-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--accent-blue-gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.controller-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.6), 0 0 20px rgba(59, 130, 246, 0.2);
}

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

.icon-wrapper {
    width: 80px;
    height: 80px;
    background: var(--glass-bg);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: var(--accent-blue);
    transition: transform 0.3s ease;
}

.controller-card:hover .icon-wrapper {
    transform: scale(1.1) rotate(5deg);
    background: rgba(59, 130, 246, 0.1);
}

.controller-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.controller-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.btn-select {
    margin-top: 2rem;
    padding: 0.8rem 2rem;
    background: var(--glass-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.controller-card:hover .btn-select {
    background: var(--accent-blue-gradient);
    border-color: transparent;
    color: white;
}

/* Footer Styles */
footer {
    margin-top: auto;
    padding: 3rem 0;
    text-align: center;
    width: 100%;
    color: var(--text-secondary);
    font-size: 0.85rem;
    opacity: 0.7;
}

footer a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer a:hover {
    color: var(--accent-blue);
}

/* Future expansion placeholder */
.future-card {
    opacity: 0.5;
    cursor: default;
    background: rgba(0,0,0,0.2);
}

.future-card:hover {
    transform: none;
    border-color: var(--card-border);
    box-shadow: var(--shadow-premium);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.selection-grid > *:nth-child(1) { animation: fadeInUp 0.8s ease-out 0.2s both; }
.selection-grid > *:nth-child(2) { animation: fadeInUp 0.8s ease-out 0.4s both; }
.selection-grid > *:nth-child(3) { animation: fadeInUp 0.8s ease-out 0.6s both; }

@media (max-width: 600px) {
    h1 {
        font-size: 2.2rem;
    }
    .container {
        padding: 1rem;
    }
}