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

body {
    font-family: 'Noto Sans KR', sans-serif;
    background: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #16213e 100%);
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
    overflow: hidden;
    opacity: 0;
    animation: heroFadeIn 1.5s ease-out forwards;
}

@keyframes heroFadeIn {
    to {
        opacity: 1;
    }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 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="%23ffffff" stroke-width="0.5" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.hero-image {
    width: 400px;
    height: 400px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
    font-weight: 900;
    color: #000;
    box-shadow: 0 30px 80px rgba(0, 255, 136, 0.4);
    animation: pulse 2s ease-in-out infinite alternate;
    position: relative;
    overflow: hidden;
}

@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 30px 80px rgba(0, 255, 136, 0.4);
    }
    100% {
        transform: scale(1.05);
        box-shadow: 0 40px 100px rgba(0, 255, 136, 0.6);
    }
}

.hero-image::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: conic-gradient(from 0deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: rotate 3s linear infinite;
    transform: translate(-50%, -50%);
}

@keyframes rotate {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    color: #000;
    padding: 8px 20px;
    border-radius: 25px;
    font-weight: 900;
    font-size: 14px;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    margin-bottom: 20px;
    background: linear-gradient(45deg, #00ff88, #00ccff, #ff3366);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 30px;
    opacity: 0.9;
    font-weight: 700;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    color: #000;
    padding: 18px 40px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 900;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 255, 136, 0.5);
}

/* 底部悬浮按钮 */
.floating-cta {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1000;
    animation: bounce 2s infinite;
}

.floating-cta .cta-button {
    background: linear-gradient(45deg, #ff3366, #00ff88);
    font-size: 1.1rem;
    padding: 15px 30px;
    border-radius: 50px;
    box-shadow: 0 10px 30px rgba(255, 51, 102, 0.4);
    transition: all 0.3s ease;
}

.floating-cta .cta-button:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 20px 50px rgba(255, 51, 102, 0.6);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.stock-symbol {
    position: absolute;
    font-weight: 900;
    opacity: 0.1;
    font-size: 2rem;
    animation: float 6s ease-in-out infinite;
}

.stock-symbol:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; }
.stock-symbol:nth-child(2) { top: 60%; right: 15%; animation-delay: 2s; }
.stock-symbol:nth-child(3) { bottom: 30%; left: 20%; animation-delay: 4s; }

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

/* Profile Section */
.profile-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.section-title {
    text-align: center;
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 60px;
    background: linear-gradient(45deg, #00ff88, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.profile-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    align-items: center;
}

.profile-image {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    font-weight: 900;
    color: #000;
    margin: 0 auto;
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.3);
}

.profile-content h3 {
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 20px;
    color: #00ff88;
}

.profile-content p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    opacity: 0.9;
}

.achievements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.achievement-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
}

.achievement-card h4 {
    font-size: 1.3rem;
    font-weight: 900;
    color: #00ff88;
    margin-bottom: 15px;
}

/* Features Section */
.features-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #16213e 0%, #0a0a0a 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 40px;
    border-radius: 25px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.2);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    color: #000;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    color: #ffffff;
}

.feature-card p {
    opacity: 0.8;
    line-height: 1.8;
}

/* How to Join Section */
.join-section {
    padding: 100px 0;
    background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.1) 0%, transparent 50%);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step-card {
    text-align: center;
    padding: 40px 20px;
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 900;
    color: #000;
    margin: 0 auto 20px;
}

.step-card h3 {
    font-size: 1.5rem;
    font-weight: 900;
    margin-bottom: 15px;
    color: #00ff88;
}

/* 사용자 후기 섹션 */
.testimonials-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #16213e 0%, #1a1a2e 100%);
    position: relative;
    overflow: hidden;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.testimonial-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    transition: all 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.2);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -10px;
    left: 20px;
    font-size: 4rem;
    color: #00ff88;
    font-weight: 900;
    opacity: 0.3;
}

.testimonial-content {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: #000;
}

.author-info h4 {
    color: #00ff88;
    font-weight: 900;
    margin-bottom: 5px;
}

.author-info p {
    opacity: 0.7;
    font-size: 0.9rem;
}

/* Books Section */
.books-section {
    padding: 100px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.book-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    backdrop-filter: blur(10px);
    text-align: center;
    transition: all 0.3s ease;
}

.book-card:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 60px rgba(0, 255, 136, 0.3);
}

.book-cover {
    width: 150px;
    height: 200px;
    background: linear-gradient(45deg, #00ff88, #00ccff);
    border-radius: 10px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: #000;
}

.book-card h3 {
    font-size: 1.3rem;
    font-weight: 900;
    color: #ffffff;
    margin-bottom: 10px;
}

/* CTA Section */
.final-cta {
    padding: 100px 0;
    text-align: center;
    background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.2) 0%, transparent 50%);
}

.final-cta h2 {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 30px;
    background: linear-gradient(45deg, #ff3366, #00ff88, #00ccff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.urgency-text {
    font-size: 1.2rem;
    color: #ff3366;
    font-weight: 900;
    margin-bottom: 30px;
    text-transform: uppercase;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-image {
        width: 300px;
        height: 300px;
        font-size: 4rem;
    }
    
    .profile-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .floating-cta .cta-button {
        font-size: 1rem;
        padding: 12px 25px;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}