:root {
    --primary-navy: #0d1b2a;
    --primary-blue: #0077b6;
    --accent-cyan: #48cae4;
    --light-bg: #f8f9fa;
    --text-dark: #212529;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    overflow-x: hidden;
    background-color: #ffffff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.navbar .nav-link {
    font-size: 16px;
    letter-spacing: -0.025em;
}

a { text-decoration: none; color: inherit; }

/* --- Animations (Intersection Observer Target) --- */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.9s cubic-bezier(0.19, 1, 0.22, 1); /* 부드러운 애니메이션 */
}
.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --- Section 5: USP (Differentiation) --- */
.usp-card {
    background-color: white;
    border: none;
    border-left: 5px solid var(--primary-blue);
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    height: 100%;
    padding: 1.5rem;
    transition: all 0.3s;
}
.usp-card:hover {
    transform: scale(1.02);
}
.usp-icon {
    font-size: 1.8rem;
    color: var(--dark-navy);
    margin-right: 1rem;
}
.usp-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    margin-bottom: 1.5rem;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
}
 /* --- CTA --- */
.cta-section {
    background: var(--primary-navy);
    color: white;
    padding: 5rem 0;
    text-align: center;
}
.btn-custom {
    background-color: var(--accent-cyan);
    color: var(--primary-navy);
    font-weight: 700;
    padding: 12px 30px;
    border-radius: 30px;
    border: none;
    transition: all 0.3s;
}
.btn-custom:hover {
    background-color: white;
    transform: scale(1.05);
}

@media (max-width: 768px) {
    .hero-title { font-size: 1.5rem; }
    .hero-subtitle { font-size: 1.0rem; }
}