:root {
    --primary-color: #2c3e50;
    --accent-color: #3498db;
    --bg-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    --white-alpha: rgba(255, 255, 255, 0.7);
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Pretendard', sans-serif;
    background: var(--bg-gradient);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--primary-color);
}

.container {
    text-align: center;
    padding: 60px 40px;
    background: var(--white-alpha);
    backdrop-filter: blur(15px);
    border-radius: 40px;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    max-width: 800px;
    width: 90%;
    margin: 20px;
}

.logo-symbol {
    font-size: 42px;
    margin-bottom: 10px;
    font-weight: 800;
    background: linear-gradient(to right, #3498db, #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent; 
}

h1 {
    font-size: 2.2rem;
    margin-bottom: 10px;
    letter-spacing: -1px;
}

.divider {
    width: 40px;
    height: 4px;
    background: var(--accent-color);
    margin: 0 auto 25px;
    border-radius: 2px;
}

.catchphrase {
    font-size: 1.1rem;
    color: #444;
    margin-bottom: 40px;
    font-weight: 300;
}

/* 서비스 그리드 레이아웃 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.service-card {
    background: white;
    padding: 25px 20px;
    border-radius: 25px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    cursor: pointer;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.service-card.disabled {
    opacity: 0.6;
    cursor: default;
}

.service-card.disabled:hover {
    transform: none;
}

.card-icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.service-card h3 {
    margin: 0 0 8px 0;
    font-size: 1.1rem;
}

.service-card p {
    font-size: 0.85rem;
    color: #777;
    margin-bottom: 15px;
}

.link-label {
    font-size: 0.8rem;
    color: var(--accent-color);
    font-weight: 600;
}

/* 태그 리스트 */
.app-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
}

.app-tag {
    background: rgba(255,255,255,0.5);
    padding: 6px 14px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: #666;
}

footer {
    margin-top: 50px;
    font-size: 0.75rem;
    color: #999;
}