:root {
    --navy-900: #1a2639;
    --navy-800: #2c3e50;
    --paper-100: #f5f5dc;
    --paper-200: #e8e8c8;
    --gold-500: #d4af37;
    --gold-600: #b4941f;
    --red-100: #e63010;
    --yellow-100: #fce935;
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

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

body {
    background-color: var(--navy-900);
    background-image: 
        linear-gradient(rgba(26, 38, 57, 0.97), rgba(26, 38, 57, 0.97)),
        url("../images/black-paper.png");
    color: var(--paper-100);
    font-family: var(--font-sans);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 800px;
    width: 100%;
    padding: 2rem;
    text-align: center;
}

header {
    margin-bottom: 3rem;
    animation: fadeInDown 1s ease-out;
}

.logo-container {
    margin-bottom: 2rem;
}

.logo {
    width: 120px;
    height: auto;
    filter: drop-shadow(0 10px 20px rgba(0,0,0,0.5));
}

h1 {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    color: var(--paper-100);
}

.tagline {
    font-size: 1.25rem;
    color: var(--paper-200);
    opacity: 0.8;
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
    width: 100%;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.portal-card {
    background: var(--navy-800);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 2rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.portal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent, rgba(212, 175, 55, 0.05), transparent);
    transform: translateX(-100%);
    transition: transform 0.6s ease;
}

.portal-card:hover {
    transform: translateY(-5px);
    border-color: rgba(212, 175, 55, 0.3);
    background: rgba(44, 62, 80, 0.8);
}

.portal-card:hover::before {
    transform: translateX(100%);
}

.portal-card h2 {
    font-family: var(--font-sans);
    font-size:1.3rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    color: var(--red-100);
}

.portal-card h3 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--gold-500);
    margin-bottom: 0.5rem;
}

.portal-card p {
    font-size: 0.9rem;
    color: var(--paper-200);
    opacity: 0.7;
}

.app-card {
    grid-column: 1 / -1;
    border: 1px solid rgba(212, 175, 55, 0.2);
    background: linear-gradient(135deg, var(--navy-800), rgba(26, 38, 57, 0.8));
}

.app-card h3 {
    font-size: 2rem;
}

footer {
    margin-top: 4rem;
    font-family: var(--font-serif);
    font-size: 0.9rem;
    opacity: 0.4;
    padding-bottom: 2rem;
    animation: fadeIn 2s ease-out 1s both;
}

@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);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@media (max-width: 600px) {
    .container {
        padding: 1.5rem;
    }
    h1 {
        font-size: 2.5rem;
    }
    .portal-grid {
        grid-template-columns: 1fr;
    }
}