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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 10% 20%, rgba(255,255,255,0.08) 0%, transparent 20%),
        radial-gradient(circle at 90% 80%, rgba(255,255,255,0.08) 0%, transparent 20%);
    pointer-events: none;
    z-index: 1;
}

@keyframes gradientBG {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(16px);
    max-width: 480px;
    width: 90%;
    position: relative;
    z-index: 2;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.profile {
    margin-bottom: 2.5rem;
}

h1 {
    font-size: 2rem;
    font-weight: 600;
    color: #fff;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

.subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
    letter-spacing: 0.1em;
}

.nav-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.nav-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 1rem;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    text-decoration: none;
    color: #fff;
    transition: all 0.3s ease;
    cursor: pointer;
}

.nav-card:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.nav-card:active {
    transform: translateY(0);
}

.nav-icon {
    font-size: 2rem;
    line-height: 1;
}

.nav-label {
    font-size: 1.05rem;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.nav-desc {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.4;
}

@media (max-width: 400px) {
    .nav-grid {
        grid-template-columns: 1fr;
    }
    .container {
        padding: 2rem 1.5rem;
    }
}

.footer {
    position: absolute;
    bottom: 1rem;
    left: 0;
    right: 0;
    text-align: center;
    z-index: 2;
    padding: 0 1rem;
}

.footer a {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.45);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer a:hover {
    color: rgba(255, 255, 255, 0.8);
}