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

body {
    font-family: 'Pretendard', 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8fafc;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #8b5cf6 100%);
    color: white;
    padding: 120px 0;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.1) 0%, transparent 50%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.4;
}

.hero-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-content {
    text-align: left;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    letter-spacing: -0.02em;
    background: linear-gradient(45deg, #ffffff, #e0e7ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .tagline {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.4;
}

.hero .subtitle {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.85;
    line-height: 1.6;
}

.hero-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.hero-avatar {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    border-radius: 50%;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 900;
    color: #1e3a8a;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    border: 8px solid rgba(255,255,255,0.2);
    position: relative;
    overflow: hidden;
}

.hero-avatar::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.hero-profile-info {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.hero-profile-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.hero-profile-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* About Section */
.about {
    padding: 100px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 3rem;
    color: #1e3a8a;
    letter-spacing: -0.02em;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(45deg, #3b82f6, #8b5cf6);
    border-radius: 2px;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}

.about-image {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
    border-radius: 20px;
    position: relative;
}

.profile-placeholder {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #3b82f6, #1e3a8a);
    border-radius: 50%;
    margin: 0 auto 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
    font-weight: 700;
}

.credentials {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid #3b82f6;
}

.credential-item {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.credential-title {
    font-weight: 600;
    color: #1e3a8a;
    margin-bottom: 0.5rem;
}

/* Event Details Section */
.event-details {
    padding: 100px 0;
    background: linear-gradient(135deg, #f1f5f9, #e2e8f0);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #1e3a8a;
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: white;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-item {
    padding: 1.5rem;
    background: #f8fafc;
    border-radius: 10px;
    border-left: 4px solid #3b82f6;
}

.benefit-item h4 {
    color: #1e3a8a;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* Disclaimer Section */
.disclaimer {
    padding: 60px 0;
    background: #1e3a8a;
    color: white;
}

.disclaimer-box {
    background: rgba(255,255,255,0.1);
    padding: 2rem;
    border-radius: 15px;
    border: 2px solid rgba(255,255,255,0.2);
}

.disclaimer h3 {
    margin-bottom: 1rem;
    color: #fbbf24;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, #3b82f6, #1e3a8a);
    color: white;
    text-align: center;
}

.cta-button {
    display: inline-block;
    background: white;
    color: #1e3a8a;
    padding: 1rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.2rem;
    margin-top: 2rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

/* Rich Content Sections */
.rich-content {
    padding: 100px 0;
}

.rich-content.alt {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-grid.reverse {
    direction: rtl;
}

.content-grid.reverse > * {
    direction: ltr;
}

.content-image {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.1);
}

.content-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.content-placeholder {
    width: 100%;
    height: 300px;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.content-text h3 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: #1e3a8a;
    line-height: 1.3;
}

.content-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: #4b5563;
}

.content-features {
    list-style: none;
    padding: 0;
}

.content-features li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #e5e7eb;
    font-weight: 600;
    color: #374151;
}

.content-features li:before {
    content: '✓';
    color: #10b981;
    font-weight: bold;
    margin-right: 1rem;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 900;
    color: #1e3a8a;
    text-decoration: none;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-menu a {
    text-decoration: none;
    color: #374151;
    font-weight: 600;
    transition: color 0.3s ease;
    cursor: pointer;
}

.nav-menu a:hover {
    color: #3b82f6;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 3rem;
    border-radius: 20px;
    width: 80%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-header {
    margin-bottom: 2rem;
}

.modal-title {
    font-size: 2rem;
    font-weight: 800;
    color: #1e3a8a;
    margin-bottom: 1rem;
}

.close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    color: #9ca3af;
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #374151;
}

.modal-body p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #4b5563;
}

.modal-body ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.modal-body li {
    margin-bottom: 0.8rem;
    line-height: 1.6;
    color: #4b5563;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    .hero-content {
        text-align: center;
    }

    .hero-avatar {
        width: 250px;
        height: 250px;
        font-size: 3rem;
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .nav-menu {
        display: none;
    }
}

@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    .navbar{
        display: none;
    }

    .hero .tagline {
        font-size: 1.4rem;
    }

    .hero-avatar {
        width: 200px;
        height: 200px;
        font-size: 2.5rem;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .content-text h3 {
        font-size: 1.8rem;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 2rem;
    }

    .rich-content {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .hero .tagline {
        font-size: 1.2rem;
    }

    .hero-avatar {
        width: 150px;
        height: 150px;
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.8rem;
    }
}

.warning-badge {
    background: #ef4444;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 1rem;
}

.floating-button-container {
    position: fixed;
    bottom: 30px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    z-index: 1000;
    pointer-events: none;
    }
    @keyframes bounce {
    0%, 100% {
    transform: translateY(0);
    }
    50% {
    transform: translateY(-10px);
    }
    }
    .floating-button {
    position: relative;
    background: #05C705;
    color: white;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    animation: bounce 2s infinite;
    transition: all 0.3s ease;
    white-space: nowrap;
    pointer-events: auto;
    }
    
    .floating-button:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
    }
    
    .floating-button .icon {
    font-size: 24px;
    }
    
    @media (max-width: 768px) {
    .floating-button-container {
    bottom: 20px;
    }
    
    .floating-button {
    font-size: 16px;
    padding: 12px 24px;
    }
    }
    
    @media (max-width: 480px) {
    .floating-button {
    font-size: 14px;
    padding: 10px 20px;
    }
    
    .floating-button .icon {
    font-size: 18px;
    }
    }