:root {
    --primary: #2c5530;
    --primary-light: #4a7c59;
    --primary-dark: #1a3a1d;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg: #ffffff;
    --bg-alt: #f9fafb;
    --gradient-1: linear-gradient(135deg, #059669 0%, #10b981 50%, #34d399 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #f97316 100%);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Noto Sans KR', sans-serif; color: var(--text); background: var(--bg); overflow-x: hidden; }
.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

nav#navbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    padding: 20px 0; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
nav#navbar.scrolled {
    background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(20px);
    box-shadow: var(--shadow); padding: 12px 0;
}
nav .container { display: flex; justify-content: space-between; align-items: center; }
.logo { display: flex; align-items: center; text-decoration: none; color: white; transition: all 0.3s; 
    background: #ffffff; padding: 8px 20px; border-radius: 50px; }
nav#navbar.scrolled .logo { background: #f0f0f0; }
.logo-image { height: 36px; width: auto; object-fit: contain; }
.btn-join { background: var(--accent); color: white !important; padding: 10px 24px; 
    border-radius: 50px; font-weight: 700; text-decoration: none; transition: all 0.3s; }
.btn-join:hover { background: var(--accent-dark); transform: translateY(-2px); }

.hero {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    position: relative; background: linear-gradient(135deg, #064e3b 0%, #065f46 25%, #047857 50%, #059669 75%, #10b981 100%);
    overflow: hidden;
}
.hero::before { content: ''; position: absolute; inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E") repeat;
}
.hero-shapes { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.shape { position: absolute; border-radius: 50%; opacity: 0.1; animation: float 20s infinite ease-in-out; }
.shape:nth-child(1) { width: 400px; height: 400px; background: #34d399; top: -10%; right: -5%; }
.shape:nth-child(2) { width: 200px; height: 200px; background: #f59e0b; bottom: 20%; left: 10%; animation-delay: -5s; }
.shape:nth-child(3) { width: 150px; height: 150px; background: #8b5cf6; top: 40%; left: 30%; animation-delay: -10s; }
.shape:nth-child(4) { width: 300px; height: 300px; background: #10b981; bottom: -10%; right: 20%; animation-delay: -15s; }
@keyframes float { 0%, 100% { transform: translate(0, 0) rotate(0deg); } 25% { transform: translate(30px, -30px) rotate(90deg); } 50% { transform: translate(-20px, 30px) rotate(180deg); } 75% { transform: translate(20px, 20px) rotate(270deg); } }

.hero-content { position: relative; z-index: 2; text-align: center; color: white; padding: 0 20px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.15); backdrop-filter: blur(10px); padding: 8px 20px; border-radius: 50px; font-size: 0.9rem; margin-bottom: 24px; border: 1px solid rgba(255,255,255,0.2); }
.hero-badge .pulse { width: 8px; height: 8px; background: #34d399; border-radius: 50%; animation: pulse 2s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.5; transform: scale(1.5); } }
.hero h1 { font-size: clamp(3rem, 8vw, 6rem); font-weight: 900; line-height: 1.1; margin-bottom: 20px; text-shadow: 0 4px 30px rgba(0,0,0,0.2); }
.hero h1 .highlight { background: linear-gradient(135deg, #f59e0b, #f97316); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: clamp(1rem, 2.5vw, 1.3rem); opacity: 0.9; max-width: 600px; margin: 0 auto 40px; line-height: 1.6; font-weight: 300; }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-bottom: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255,255,255,0.2); }
.hero-stats .stat-item { text-align: center; }
.hero-stats .stat-number { font-size: 2.5rem; font-weight: 900; display: block; margin-bottom: 4px; }
.hero-stats .stat-label { font-size: 0.9rem; opacity: 0.8; }
.hero-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 16px 36px; border-radius: 50px; font-size: 1.1rem; font-weight: 700; text-decoration: none; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); cursor: pointer; border: none; }
.btn-secondary { background: rgba(255,255,255,0.15); color: white; border: 2px solid rgba(255,255,255,0.3); backdrop-filter: blur(10px); }
.btn-secondary:hover { background: rgba(255,255,255,0.25); transform: translateY(-3px); }

section { padding: 120px 0; }
.section-header { text-align: center; margin-bottom: 64px; }
.section-tag { display: inline-block; background: var(--gradient-1); color: white; padding: 6px 20px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; margin-bottom: 16px; line-height: 1.2; }
.section-subtitle { font-size: 1.1rem; color: var(--text-light); max-width: 600px; margin: 0 auto; line-height: 1.6; }

.about-section { background: var(--bg); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-image .main-image { width: 100%; aspect-ratio: 4/3; border-radius: 24px; box-shadow: var(--shadow-xl); overflow: hidden; }
.about-image .main-image img { width: 100%; height: 100%; object-fit: cover; }
.about-content .tag { display: inline-block; background: rgba(5,150,105,0.1); color: var(--primary); padding: 6px 16px; border-radius: 50px; font-size: 0.85rem; font-weight: 600; margin-bottom: 20px; }
.about-content h2 { font-size: 2.5rem; font-weight: 900; margin-bottom: 20px; line-height: 1.2; }
.about-content p { color: var(--text-light); line-height: 1.8; margin-bottom: 24px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-feature { display: flex; align-items: center; gap: 12px; padding: 12px; background: var(--bg-alt); border-radius: 12px; font-weight: 500; }
.about-feature .icon { width: 36px; height: 36px; background: var(--gradient-1); border-radius: 10px; display: flex; align-items: center; justify-content: center; }

.audience-section { background: var(--bg-alt); }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.audience-card { background: white; padding: 40px 32px; border-radius: 24px; box-shadow: var(--shadow); transition: all 0.3s; position: relative; overflow: hidden; }
.audience-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient-1); transform: scaleX(0); transition: transform 0.3s; }
.audience-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-xl); }
.audience-card:hover::before { transform: scaleX(1); }
.audience-card .number { font-size: 3rem; font-weight: 900; background: var(--gradient-1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; opacity: 0.2; margin-bottom: 16px; }
.audience-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
.audience-card p { color: var(--text-light); line-height: 1.6; }

.activities-section { background: var(--bg); }
.activities-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.activity-card { background: white; padding: 32px 24px; border-radius: 20px; text-align: center; box-shadow: var(--shadow); transition: all 0.3s; cursor: pointer; }
.activity-card:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-xl); }
.activity-card .icon { width: 70px; height: 70px; margin: 0 auto 16px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 2rem; transition: transform 0.3s; }
.activity-card:hover .icon { transform: scale(1.1) rotate(5deg); }
.activity-card:nth-child(1) .icon { background: linear-gradient(135deg, #dbeafe, #bfdbfe); }
.activity-card:nth-child(2) .icon { background: linear-gradient(135deg, #dcfce7, #bbf7d0); }
.activity-card:nth-child(3) .icon { background: linear-gradient(135deg, #fef3c7, #fde68a); }
.activity-card:nth-child(4) .icon { background: linear-gradient(135deg, #fce7f3, #fbcfe8); }
.activity-card:nth-child(5) .icon { background: linear-gradient(135deg, #ede9fe, #ddd6fe); }
.activity-card:nth-child(6) .icon { background: linear-gradient(135deg, #ffedd5, #fed7aa); }
.activity-card:nth-child(7) .icon { background: linear-gradient(135deg, #ccfbf1, #99f6e4); }
.activity-card h3 { font-size: 1rem; font-weight: 700; margin-bottom: 4px; }
.activity-card p { font-size: 0.85rem; color: var(--text-light); }

.schedule-section { background: var(--bg-alt); }
.schedule-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.schedule-card { background: white; border-radius: 24px; padding: 32px; box-shadow: var(--shadow); position: relative; overflow: hidden; transition: all 0.4s; animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards; opacity: 0; transform: translateY(30px); }
.schedule-card:hover { transform: translateY(-8px) scale(1.02); box-shadow: var(--shadow-xl); }
.schedule-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--gradient-1); transform: scaleX(0); transition: transform 0.3s; transform-origin: left; }
.schedule-card:hover::before { transform: scaleX(1); }
@keyframes slideUp { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: translateY(0); } }
.schedule-card.featured { background: var(--gradient-1); color: white; }
.schedule-card.wide { grid-column: span 3; }
.schedule-card.featured .schedule-tag { background: rgba(255,255,255,0.2); color: white; }
.schedule-card.featured .schedule-date,.schedule-card.featured .schedule-mountain,.schedule-card.featured .schedule-desc { color: white; }
.schedule-tag { display: inline-block; background: rgba(5,150,105,0.1); color: var(--primary); padding: 4px 14px; border-radius: 50px; font-size: 0.8rem; font-weight: 600; margin-bottom: 16px; }
.schedule-date { font-size: 1.1rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.schedule-mountain { font-size: 1.5rem; font-weight: 800; margin-bottom: 8px; }
.schedule-desc { color: var(--text-light); font-size: 0.9rem; }

.instagram-section { background: var(--bg); text-align: center; }
.instagram-widget { max-width: 700px; margin: 0 auto; background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); padding: 4px; border-radius: 24px; }
.instagram-widget-inner { background: white; border-radius: 22px; padding: 24px; }
.btn-instagram { display: inline-flex; align-items: center; gap: 12px; background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); color: white; text-decoration: none; padding: 16px 36px; border-radius: 50px; font-weight: 700; font-size: 1.1rem; transition: all 0.3s; }
.btn-instagram:hover { transform: translateY(-3px); box-shadow: 0 10px 30px rgba(220, 39, 67, 0.3); }

.join-section { background: linear-gradient(135deg, #064e3b 0%, #065f46 50%, #047857 100%); color: white; position: relative; overflow: hidden; }
.join-section .hero-shapes .shape { opacity: 0.05; }
.join-content { position: relative; z-index: 2; }
.join-header { text-align: center; margin-bottom: 64px; }
.join-header h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 900; margin-bottom: 16px; }
.join-header p { font-size: 1.1rem; opacity: 0.8; }
.join-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 48px; }
.join-card { background: rgba(255,255,255,0.1); backdrop-filter: blur(10px); border-radius: 24px; padding: 40px; border: 1px solid rgba(255,255,255,0.2); transition: all 0.3s; }
.join-card:hover { background: rgba(255,255,255,0.15); transform: translateY(-5px); }
.join-card h3 { font-size: 1.3rem; font-weight: 800; margin-bottom: 16px; display: flex; align-items: center; gap: 12px; }
.join-card ul { list-style: none; padding: 0; }
.join-card li { padding: 8px 0; padding-left: 24px; position: relative; opacity: 0.9; line-height: 1.6; }
.join-card li::before { content: '\2713'; position: absolute; left: 0; font-weight: 700; color: #10b981; }
.join-cta { text-align: center; }
.btn-kakao { background: #FEE500; color: #371d1e; padding: 20px 48px; font-size: 1.2rem; border-radius: 16px; text-decoration: none; font-weight: 700; display: inline-flex; align-items: center; gap: 10px; transition: all 0.3s; }
.btn-kakao:hover { background: #f5dc00; transform: translateY(-3px); box-shadow: 0 10px 30px rgba(254, 229, 0, 0.3); }

footer { background: var(--primary-dark); color: white; padding: 60px 0 30px; }
footer .footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 60px; margin-bottom: 40px; }
footer .footer-links h4 { font-size: 1rem; font-weight: 700; margin-bottom: 16px; }
footer .footer-links ul { list-style: none; }
footer .footer-links li { margin-bottom: 10px; }
footer .footer-links a { color: rgba(255,255,255,0.6); text-decoration: none; transition: color 0.3s; }
footer .footer-links a:hover { color: white; }
footer .footer-bottom { padding-top: 30px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 0.9rem; color: rgba(255,255,255,0.5); }

.reveal { opacity: 0; transform: translateY(40px); transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1); }
.reveal.visible { opacity: 1; transform: translateY(0); }

@media (max-width: 1024px) { .about-grid { grid-template-columns: 1fr; gap: 48px; } .audience-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 1024px) {
    .activities-grid { grid-template-columns: repeat(2, 1fr); }
    .schedule-grid { grid-template-columns: repeat(2, 1fr); }
    .schedule-card.wide { grid-column: span 2; }
}
@media (max-width: 768px) {
    .hero-stats { flex-direction: column; gap: 24px; }
    .stat-number { font-size: 2rem; }
    .audience-grid { grid-template-columns: 1fr; }
    .join-cards { grid-template-columns: 1fr; }
    .schedule-grid { grid-template-columns: 1fr; }
    .schedule-card.wide { grid-column: span 1; }
}
@media (max-width: 480px) {
    section { padding: 80px 0; }
    .activities-grid { grid-template-columns: 1fr; }
    .hero-buttons { flex-direction: column; }
    .btn { width: 100%; justify-content: center; }
    .logo { font-size: 0; padding: 6px 14px; }
    .logo-image { height: 30px; }
    .btn-join { padding: 8px 18px; font-size: 0.9rem; }
}