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

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #2a2a2a;
    background: #fafafa;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    padding: 100px 0 120px;
    text-align: center;
    background: #fafafa;
    color: #2a2a2a;
    position: relative;
}

.hero-logo {
    margin-bottom: 3rem;
    position: relative;
    z-index: 2;
}

.hero-logo-img {
    width: 500px;
    height: auto;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.08));
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #6b7280;
    font-weight: 300;
    position: relative;
    z-index: 2;
    letter-spacing: 0.01em;
}

.submit-deck-btn {
    display: inline-block;
    padding: 18px 40px;
    background: #2a2a2a !important;
    color: white !important;
    text-decoration: none !important;
    border-radius: 2px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    position: relative;
    z-index: 1000;
    cursor: pointer;
}

.submit-deck-btn:hover {
    background: #1a1a1a !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(42,42,42,0.15);
}

/* Main Content */
main {
    background: white;
    position: relative;
    z-index: 10;
    margin-top: 60px;
    border-top: 1px solid #e5e5e5;
}

/* Portfolio Section */
.portfolio {
    padding: 100px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 2.25rem;
    margin-bottom: 4rem;
    color: #2a2a2a;
    font-weight: 300;
    letter-spacing: -0.02em;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    margin-top: 3rem;
    background: #e5e5e5;
}

.portfolio-item {
    background: white;
    padding: 3rem 2rem;
    text-align: center;
    transition: all 0.3s ease;
    min-height: 250px;
    border: none;
}

.portfolio-item:hover {
    background: #fafafa;
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
}

.portfolio-name {
    font-size: 1.1rem;
    font-weight: 500;
    color: #2a2a2a;
    margin-bottom: 0.75rem;
    letter-spacing: 0.01em;
}

.portfolio-description {
    font-size: 0.9rem;
    color: #6b7280;
    line-height: 1.4;
    font-weight: 300;
}

/* Footer */
footer {
    background: #fafafa;
    color: #9ca3af;
    text-align: center;
    padding: 4rem 0;
    border-top: 1px solid #e5e5e5;
}

footer p {
    font-size: 0.85rem;
    font-weight: 300;
    letter-spacing: 0.5px;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .hero-logo-img {
        width: 280px;
    }

    .hero-subtitle {
        font-size: 1.2rem;
        margin-bottom: 2rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .portfolio {
        padding: 60px 0;
    }

    .section-title {
        font-size: 1.8rem;
        margin-bottom: 3rem;
    }

    .hero {
        padding: 80px 0 100px;
    }

    .submit-deck-btn {
        padding: 16px 32px;
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .hero-logo-img {
        width: 220px;
    }
}