:root {
    --primary-color: #A48DFF;
    --primary-light: #C1AFF8;
    --primary-dark: #845DFF;
    --secondary-color: #6F55CC;
    --text-dark: #1A1A1A;
    --text-light: #FFFFFF;
    --bg-light: #F8F9FA;
    --accent-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

nav {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 0.5rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: color 0.3s ease;
}

.nav-item:hover > a {
    color: var(--primary-color);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    padding: 0.8rem 0;
    margin-top: 0.5rem;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown a {
    display: block;
    padding: 0.8rem 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
    transition: all 0.2s ease;
}

.dropdown a:hover {
    background: var(--bg-light);
    color: var(--primary-color);
    padding-left: 2rem;
}

.nav-cta {
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(164, 141, 255, 0.3);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #F6F5FF 0%, #E9E6FF 100%);
    display: flex;
    align-items: center;
    padding-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 70%);
    border-radius: 50%;
    top: -200px;
    right: -100px;
    opacity: 0.5;
}

.hero-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: 2.5rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-image {
    position: relative;
}

.floating-card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
    animation: float 6s ease-in-out infinite;
}

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

/* About Section */
.about {
    padding: 8rem 2rem;
    background: white;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.8rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-title p {
    font-size: 1.2rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.value-card {
    background: var(--bg-light);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(164, 141, 255, 0.1);
}

.value-icon {
    width: 80px;
    height: 80px;
    background: var(--accent-gradient);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

/* Services Section */
.services {
    padding: 8rem 2rem;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.service-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(164, 141, 255, 0.15);
}

.service-image {
    height: 200px;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.service-image i {
    font-size: 4rem;
    color: white;
    opacity: 0.9;
}

.service-content {
    padding: 2rem;
}

.service-content h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.service-content p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    margin-bottom: 2rem;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
    color: #444;
}

.service-features i {
    color: var(--primary-color);
}

/* Projects Section */
.projects {
    padding: 8rem 2rem;
    background: white;
}

.projects-container {
    max-width: 1400px;
    margin: 0 auto;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-item {
    background: var(--bg-light);
    border-radius: 24px;
    overflow: hidden;
    position: relative;
    height: 400px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.project-item:hover {
    transform: scale(1.02);
}

.project-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    color: white;
    opacity: 0;
    transition: all 0.3s ease;
}

.project-item:hover .project-overlay {
    opacity: 1;
}

.project-category {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary-light);
    margin-bottom: 0.5rem;
}

.project-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.project-description {
    font-size: 1rem;
    opacity: 0.9;
}

/* Contact Section */
.contact {
    padding: 8rem 2rem;
    background: var(--bg-light);
}

.contact-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    padding: 2rem;
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.contact-details {
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--accent-gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.contact-form {
    background: white;
    padding: 3rem;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid #eee;
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 4px rgba(164, 141, 255, 0.1);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Footer */
footer {
    background: #0D0D0D;
    color: #ccc;
    padding: 5rem 2rem 2rem;
}

.footer-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand h3 {
    font-size: 1.8rem;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.footer-brand p {
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.footer-column h4 {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 1rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: 0.5rem;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    text-align: center;
    color: #666;
}

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

    .hero-image {
        display: none;
    }

    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

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

    .values-grid {
        grid-template-columns: 1fr;
    }

    .project-grid {
        grid-template-columns: 1fr;
    }

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