@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&family=Pretendard:wght@300;400;600;800&display=swap";:root{--primary: #2D5A27;--primary-light: #4A7A42;--secondary: #E8F5E9;--accent: #FF8A65;--text-main: #2C3E50;--text-sub: #546E7A;--text-light: #90A4AE;--bg-main: #F5F5F7;--bg-card: #FFFFFF;--glass: rgba(255, 255, 255, .85);--glass-border: rgba(255, 255, 255, .5);--shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .05);--shadow-md: 0 10px 15px -3px rgba(0, 0, 0, .05), 0 4px 6px -2px rgba(0, 0, 0, .025);--shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, .05), 0 10px 10px -5px rgba(0, 0, 0, .02);--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--transition: all .3s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Pretendard,Outfit,-apple-system,BlinkMacSystemFont,system-ui,Roboto,sans-serif;background-color:var(--bg-main);color:var(--text-main);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}.glass{background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--glass-border)}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.app{min-height:100vh;display:flex;flex-direction:column}.fixed-header{position:fixed;top:0;left:0;right:0;height:72px;z-index:1000;display:flex;align-items:center;border-bottom:1px solid var(--glass-border)}.nav-container{display:flex;justify-content:space-between;align-items:center}.logo{font-family:Outfit,sans-serif;font-size:24px;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:8px;letter-spacing:-.5px}.hero-transition-wrapper{transition:all .5s ease;min-height:100vh;display:flex;flex-direction:column;justify-content:center}.hero-transition-wrapper.searched{min-height:60vh}.hero{padding:0 20px;text-align:center}.hero-content{max-width:800px;margin:0 auto}.title-gradient{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;font-size:3.5rem;font-weight:800;line-height:1.2;margin-bottom:1.5rem}.subtitle{font-size:1.25rem;color:var(--text-sub);margin-bottom:3rem;line-height:1.6}.search-bar{display:flex;background:#fff;border-radius:60px;padding:8px;box-shadow:var(--shadow-lg);max-width:600px;margin:0 auto;border:1px solid rgba(0,0,0,.05);transition:var(--transition)}.search-bar:focus-within{transform:translateY(-2px);box-shadow:0 20px 40px -10px #2d5a2726;border-color:var(--primary-light)}.search-input{flex:1;border:none;background:transparent;padding:16px 24px;font-size:1.1rem;color:var(--text-main);outline:none}.search-btn{background:var(--primary);color:#fff;border:none;width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.2rem;cursor:pointer;transition:var(--transition)}.search-btn:hover:not(:disabled){background:var(--primary-light);transform:scale(1.05)}.search-btn:disabled{background:var(--text-light);cursor:not-allowed}.loading-spinner{width:24px;height:24px;border:3px solid rgba(255,255,255,.3);border-radius:50%;border-top-color:#fff;animation:spin 1s ease-in-out infinite}@keyframes spin{to{transform:rotate(360deg)}}.results-section{padding-bottom:80px}.loading-container{text-align:center;padding:40px;color:var(--text-sub);font-size:1.1rem}.course-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:32px;padding-top:40px}.course-card{background:var(--bg-card);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);transition:var(--transition);border:1px solid rgba(0,0,0,.03);display:flex;flex-direction:column}.course-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}.course-image-placeholder{height:180px;background:linear-gradient(120deg,var(--secondary) 0%,#E0F2F1 100%);display:flex;align-items:center;justify-content:center}.course-icon{font-size:4rem;opacity:.8}.course-info{padding:24px;flex:1;display:flex;flex-direction:column}.course-badges{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}.badge{font-size:.75rem;font-weight:600;padding:4px 12px;border-radius:20px}.badge-easy{background:#e8f5e9;color:#2e7d32}.badge-medium{background:#fff3e0;color:#ef6c00}.badge-hard{background:#ffebee;color:#c62828}.badge-tag{background:var(--bg-main);color:var(--text-sub)}.course-title{font-size:1.25rem;font-weight:700;margin-bottom:8px;color:var(--text-main)}.course-description{font-size:.95rem;color:var(--text-sub);margin-bottom:24px;flex:1;line-height:1.5}.course-stats{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--bg-main)}.stat{display:flex;flex-direction:column;gap:2px}.stat-label{font-size:.75rem;color:var(--text-light);font-weight:600;text-transform:uppercase}.stat-value{font-size:1rem;font-weight:700;color:var(--primary)}.stat-divider{width:1px;height:24px;background:var(--bg-main)}footer{padding:40px 0;text-align:center;background:var(--bg-main);border-top:1px solid rgba(0,0,0,.05)}.footer-text{color:var(--text-light);font-size:.9rem}@media(max-width:768px){.title-gradient{font-size:2.5rem}.hero-transition-wrapper{min-height:90vh}}