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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
}

/* Header Styles */
.header {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    color: #2c3e50;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 20px rgba(0,0,0,0.1);
    border-bottom: 1px solid #e9ecef;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: #2c3e50;
    letter-spacing: -0.5px;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

.logo-en {
    font-size: 0.7rem;
    font-weight: 500;
    color: #7f8c8d;
    letter-spacing: 1px;
    margin-top: -2px;
    display: block;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

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

.nav-menu a {
    color: #2c3e50;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 600;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.nav-menu a:hover {
    color: #34495e;
    border-bottom: 2px solid #2c3e50;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #2c3e50;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, rgba(248,249,250,0.2) 50%, rgba(233,236,239,0.3) 100%);
    color: #2c3e50;
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.2);
    z-index: 1;
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -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"><circle cx="20" cy="20" r="2" fill="%232c3e50" opacity="0.05"/><circle cx="80" cy="40" r="1.5" fill="%232c3e50" opacity="0.05"/><circle cx="40" cy="80" r="1" fill="%232c3e50" opacity="0.05"/></svg>');
    animation: float 20s infinite linear;
}

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

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 3;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    color: #ffffff;
    font-weight: 800;
    letter-spacing: -2px;
    animation: fadeInUp 1s ease-out;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.8), 0 0 20px rgba(0,0,0,0.5);
}

.hero-main-text {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 900;
    letter-spacing: -1px;
    animation: fadeInUp 1s ease-out 0.2s both, pulse 2s ease-in-out infinite 2s;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.8), 0 0 20px rgba(255, 255, 255, 0.5);
}

.hero-sub-text {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #ffffff;
    font-weight: 700;
    animation: fadeInUp 1s ease-out 0.4s both;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.8), 0 0 20px rgba(39, 174, 96, 0.6);
}

.hero-brand-text {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #ffffff;
    font-weight: 600;
    animation: fadeInUp 1s ease-out 0.6s both;
    text-shadow: 3px 3px 6px rgba(0,0,0,0.8), 0 0 20px rgba(44, 62, 80, 0.6);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    color: #ffffff;
    font-weight: 400;
    animation: fadeInUp 1s ease-out 0.2s both;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.hero-description {
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto 3rem;
    color: #ffffff;
    line-height: 1.8;
    animation: fadeInUp 1s ease-out 0.4s both;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
    background: rgba(0,0,0,0.3);
    padding: 1.5rem;
    border-radius: 10px;
    backdrop-filter: blur(5px);
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #2c3e50, #34495e);
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(44, 62, 80, 0.3);
    animation: fadeInUp 1s ease-out 0.6s both;
    border: 2px solid transparent;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(44, 62, 80, 0.4);
    background: linear-gradient(45deg, #34495e, #2c3e50);
}

/* Bitcoin Icon Animation */
.bitcoin-icon {
    position: absolute;
    right: 10%;
    top: 20%;
    width: 100px;
    height: 100px;
    background: linear-gradient(45deg, #2c3e50, #34495e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    animation: rotate 10s infinite linear;
    opacity: 0.1;
    color: white;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {
    0%, 100% {
        text-shadow: 0 0 20px rgba(231, 76, 60, 0.3);
    }
    50% {
        text-shadow: 0 0 30px rgba(231, 76, 60, 0.6), 0 0 40px rgba(231, 76, 60, 0.4);
    }
}

/* Mobile Dropdown Menu */
.mobile-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    z-index: 1000;
}

.mobile-dropdown.show {
    display: block;
}

.mobile-dropdown a {
    display: block;
    padding: 1rem 1.5rem;
    color: #2c3e50;
    text-decoration: none;
    border-bottom: 1px solid #f8f9fa;
    transition: all 0.3s ease;
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.mobile-dropdown a:last-child {
    border-bottom: none;
}

.mobile-dropdown a:hover {
    background-color: #f8f9fa;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-container {
        position: relative;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero-main-text {
        font-size: 1.8rem;
    }

    .hero-sub-text {
        font-size: 1.3rem;
    }

    .hero-brand-text {
        font-size: 1.5rem;
    }

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

    .hero-description {
        font-size: 1rem;
    }

    .bitcoin-icon {
        display: none;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }

    .hero-container {
        padding: 0 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero-main-text {
        font-size: 1.5rem;
    }

    .hero-sub-text {
        font-size: 1.1rem;
    }

    .hero-brand-text {
        font-size: 1.3rem;
    }

    .hero {
        padding: 100px 0 60px;
    }
}

/* Section Styles */
.section {
    padding: 80px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2.5rem;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    text-align: center;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Info Section */
.info-section {
    background: #f8f9fa;
}

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

.info-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid #e9ecef;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.info-card h3 {
    color: #2c3e50;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.info-card p {
    color: #5a6c7d;
    line-height: 1.6;
}

/* Strategy Section */
.strategy-section {
    background: white;
}

.strategy-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.strategy-text h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.strategy-text p {
    color: #5a6c7d;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.strategy-list {
    list-style: none;
}

.strategy-list li {
    color: #5a6c7d;
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.strategy-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #2c3e50;
    font-weight: bold;
}

.strategy-image {
    text-align: center;
}

.crypto-chart {
    width: 100%;
    max-width: 400px;
    height: 300px;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 12px;
    padding: 1.5rem;
    color: white;
    font-size: 0.9rem;
    border: 1px solid #34495e;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
    position: relative;
    overflow: hidden;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #34495e;
}

.chart-header h4 {
    margin: 0;
    font-size: 1rem;
    color: #3498db;
}

.chart-indicators {
    display: flex;
    gap: 0.5rem;
}

.indicator {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 600;
}

.indicator.up {
    background: #27ae60;
    color: white;
}

.indicator:not(.up) {
    background: #34495e;
    color: #bdc3c7;
}

.chart-content {
    height: 180px;
    position: relative;
    margin-bottom: 1rem;
}

.chart-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.line {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, #3498db, #2980b9);
    border-radius: 1px;
    animation: chartMove 3s ease-in-out infinite;
}

.line-1 { top: 20%; left: 0; width: 60%; animation-delay: 0s; }
.line-2 { top: 40%; left: 10%; width: 70%; animation-delay: 0.5s; }
.line-3 { top: 60%; left: 5%; width: 80%; animation-delay: 1s; }
.line-4 { top: 30%; left: 20%; width: 50%; animation-delay: 1.5s; }
.line-5 { top: 70%; left: 0; width: 90%; animation-delay: 2s; }

.chart-bars {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    display: flex;
    align-items: end;
    justify-content: space-around;
    padding: 0 1rem;
}

.bar {
    width: 8px;
    background: linear-gradient(180deg, #e74c3c, #c0392b);
    border-radius: 4px 4px 0 0;
    animation: barGrow 2s ease-in-out infinite;
}

.bar-1 { height: 60%; animation-delay: 0s; }
.bar-2 { height: 80%; animation-delay: 0.2s; }
.bar-3 { height: 45%; animation-delay: 0.4s; }
.bar-4 { height: 90%; animation-delay: 0.6s; }
.bar-5 { height: 70%; animation-delay: 0.8s; }
.bar-6 { height: 55%; animation-delay: 1s; }
.bar-7 { height: 85%; animation-delay: 1.2s; }
.bar-8 { height: 65%; animation-delay: 1.4s; }

.chart-footer {
    text-align: center;
}

.chart-info {
    display: flex;
    justify-content: space-around;
    margin-bottom: 0.5rem;
    font-size: 0.8rem;
    color: #bdc3c7;
}

.chart-info span {
    padding: 0.2rem 0.5rem;
    background: rgba(52, 152, 219, 0.2);
    border-radius: 4px;
    border: 1px solid #3498db;
}

@keyframes chartMove {
    0%, 100% { opacity: 0.7; transform: translateX(0); }
    50% { opacity: 1; transform: translateX(5px); }
}

@keyframes barGrow {
    0%, 100% { transform: scaleY(1); }
    50% { transform: scaleY(1.1); }
}

/* Expert Section */
.expert-section {
    background: #f8f9fa;
}

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

.expert-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

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

.expert-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
}

.expert-card h4 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.expert-card p {
    color: #5a6c7d;
    line-height: 1.6;
}

/* Why Choose Us Section */
.why-choose-section {
    background: white;
}

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

.why-choose-card {
    text-align: center;
    padding: 2rem;
}

.why-choose-icon {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: white;
    font-size: 2.5rem;
}

.why-choose-card h3 {
    color: #2c3e50;
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.why-choose-card p {
    color: #5a6c7d;
    line-height: 1.8;
}

/* Blog Section */
.blog-section {
    background: #f8f9fa;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.blog-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
    min-height: 500px;
}

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

.blog-image img {
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-image img {
    transform: scale(1.05);
}

.blog-image {
    height: 450px;
    background: linear-gradient(135deg, #2c3e50, #34495e);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    overflow: hidden;
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.blog-title {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.blog-excerpt {
    color: #5a6c7d;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.blog-tag {
    display: inline-block;
    background: #e9ecef;
    color: #2c3e50;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
    font-weight: 600;
}

.footer-section p,
.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    line-height: 1.6;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 2rem;
    text-align: center;
    color: #bdc3c7;
}

/* Consultation Form */
.consultation-form-section {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 80px 0;
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 2rem;
}

.form-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: white;
    font-weight: 700;
}

.form-subtitle {
    font-size: 1.2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: #bdc3c7;
}

.consultation-form {
    background: rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: white;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 20px rgba(52, 152, 219, 0.3);
}

.form-group textarea {
    height: 120px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white;
    padding: 1.2rem 2rem;
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.submit-btn:hover {
    background: linear-gradient(45deg, #2980b9, #3498db);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

/* Floating Icons */
.floating-icons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.floating-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.floating-icon:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.kakao-icon {
    background: linear-gradient(45deg, #FEE500, #FFEB3B);
    animation-delay: 0s;
}

.join-icon {
    background: linear-gradient(45deg, #2c3e50, #34495e);
    animation-delay: 0.5s;
}

.scroll-to-top {
    background: linear-gradient(45deg, #3498db, #2980b9);
    animation-delay: 1s;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Responsive Design for Sections */
@media (max-width: 768px) {
    .strategy-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .section {
        padding: 60px 0;
    }

    .floating-icons {
        bottom: 20px;
        right: 20px;
    }

    .floating-icon {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .consultation-form {
        padding: 2rem 1.5rem;
    }

    .form-title {
        font-size: 2rem;
    }

    .blog-image {
        height: 300px;
    }

    .blog-card {
        min-height: 450px;
    }
}