@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    --primary-color: #1A3A6D;
    --accent-color: #E8A95A;
    --background-color: #f0f4f8;
    --surface-color: #FFFFFF;
    --text-primary: #212529;
    --text-secondary: #495057;
    --text-on-primary: #FFFFFF;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --font-family: 'Pretendard', sans-serif;
}

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

body { font-family: var(--font-family); background-color: var(--background-color); color: var(--text-primary); line-height: 1.6; }

/* Header */
.main-header { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; background-color: var(--surface-color); box-shadow: 0 2px 10px var(--shadow-color); position: sticky; top: 0; z-index: 1000; }
.logo { font-size: 1.5rem; font-weight: 800; color: var(--primary-color); }
.logo i { margin-right: 0.5rem; }
.main-nav a { margin: 0 1rem; text-decoration: none; color: var(--text-secondary); font-weight: 600; transition: color 0.3s ease; }
.main-nav a:hover { color: var(--accent-color); }
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* Hero Section */
.hero { background: linear-gradient(rgba(26, 58, 109, 0.8), rgba(26, 58, 109, 0.6)), url('https://i.ibb.co/L848W22/background.jpg') no-repeat center center/cover; color: var(--text-on-primary); text-align: center; padding: 6rem 1rem; animation: background-pan 20s linear infinite; }
@keyframes background-pan { 0% { background-position: 0% center; } 100% { background-position: 100% center; } }
.hero-title { font-size: 3.5rem; font-weight: 900; margin-bottom: 1rem; text-shadow: 0 4px 15px rgba(0,0,0,0.3); }
.hero-subtitle { font-size: 1.25rem; margin-bottom: 2rem; opacity: 0.9; }
.cta-button { background: var(--accent-color); color: var(--text-on-primary); padding: 1rem 2.5rem; border-radius: 50px; text-decoration: none; font-weight: 700; font-size: 1.1rem; transition: transform 0.3s ease, box-shadow 0.3s ease; display: inline-block; box-shadow: 0 5px 20px rgba(232, 169, 90, 0.4); }
.cta-button:hover { transform: translateY(-5px); box-shadow: 0 8px 25px rgba(232, 169, 90, 0.6); }

/* General Section Styling */
.section-title { text-align: center; font-size: 2.5rem; font-weight: 800; margin-bottom: 3rem; color: var(--primary-color); }
.feature-section, .simulation-section, .review-section { padding: 5rem 2rem; }

/* Features Grid */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; max-width: 1200px; margin: 0 auto; }
.feature-card { background-color: var(--surface-color); border-radius: 15px; padding: 2.5rem; text-align: center; box-shadow: 0 10px 30px var(--shadow-color); transition: transform 0.3s ease, box-shadow 0.3s ease; }
.feature-card:hover { transform: translateY(-10px); box-shadow: 0 15px 40px rgba(0,0,0,0.15); }
.feature-icon { font-size: 3rem; color: var(--accent-color); margin-bottom: 1.5rem; }
.feature-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 1rem; }
.feature-description { font-size: 1rem; color: var(--text-secondary); }

/* Review Section */
.review-section { background-color: var(--surface-color); }
.review-carousel-wrapper { position: relative; max-width: 900px; margin: 0 auto; }
.review-carousel { display: flex; overflow-x: auto; scroll-behavior: smooth; gap: 2rem; padding: 1rem; scrollbar-width: none; -ms-overflow-style: none; scroll-snap-type: x mandatory; }
.review-carousel::-webkit-scrollbar { display: none; }
.review-card { flex: 0 0 100%; max-width: 100%; background: #f8f9fa; border-radius: 15px; padding: 2.5rem; scroll-snap-align: center; border-left: 5px solid var(--accent-color); }
.review-stars { color: var(--accent-color); margin-bottom: 1rem; font-size: 1.2rem; }
.review-text { font-size: 1.1rem; font-style: italic; color: var(--text-secondary); margin-bottom: 1.5rem; }
.reviewer { font-weight: 700; text-align: right; color: var(--text-primary); }
.carousel-btn { position: absolute; top: 50%; transform: translateY(-50%); background-color: rgba(255,255,255,0.8); border: none; border-radius: 50%; width: 45px; height: 45px; font-size: 1.2rem; cursor: pointer; box-shadow: 0 2px 10px rgba(0,0,0,0.1); transition: all 0.3s ease; }
.carousel-btn:hover { background-color: #fff; transform: translateY(-50%) scale(1.1); }
.carousel-btn.prev { left: -20px; }
.carousel-btn.next { right: -20px; }


/* Footer */
.main-footer-container { background-color: var(--primary-color); color: var(--text-on-primary); text-align: center; padding: 2rem; margin-top: 0; }

/* Responsive Design */
@media (max-width: 960px) {
    .carousel-btn.prev { left: 10px; }
    .carousel-btn.next { right: 10px; }
}
@media (max-width: 768px) {
    .main-nav { display: none; }
    .menu-toggle { display: block; }
    .hero-title { font-size: 2.5rem; }
    .section-title { font-size: 2rem; }
    .review-card { flex-basis: 90%; }
}