/* ==================== 기본 스타일 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --accent-color: #00d4ff;
    --accent-pink: #ff006e;
    --text-dark: #1a1a2e;
    --text-light: #666666;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-color: #e0e0e0;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* ==================== 네비게이션 ==================== */
.navbar {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    transition: all var(--transition);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-decoration: none;
    cursor: pointer;
}

.logo-icon {
    color: var(--accent-color);
    font-size: 1.8rem;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    transition: color var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-pink));
    transition: width var(--transition);
}

.nav-link:hover {
    color: var(--accent-color);
}

.nav-link:hover::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ==================== 히어로 섹션 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    position: relative;
    overflow: hidden;
}

.hero-content {
    flex: 1;
    z-index: 10;
}

.hero-title {
    font-size: 3.5rem;
    line-height: 1.2;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.gradient-text {
    background: linear-gradient(90deg, var(--accent-color), var(--accent-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    line-height: 1.8;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-pink));
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all var(--transition);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.3);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 212, 255, 0.4);
}

.hero-decoration {
    position: absolute;
    right: -100px;
    top: 50%;
    transform: translateY(-50%);
    width: 500px;
    height: 500px;
}

.shape {
    position: absolute;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: float 6s ease-in-out infinite;
    opacity: 0.7;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    animation-delay: 0s;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #f093fb, #f5576c);
    top: 50%;
    left: 100px;
    animation-delay: 2s;
}

.shape-3 {
    width: 150px;
    height: 150px;
    background: linear-gradient(135deg, #4facfe, #00f2fe);
    top: 100px;
    left: 50px;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(30px, 30px);
    }
}

/* ==================== 섹션 헤더 ==================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ==================== About 섹션 ==================== */
.about {
    padding: 100px 0;
    background: var(--bg-white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.about-card {
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 15px;
    text-align: center;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.1);
}

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

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.about-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.mission-vision {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 3rem;
}

.mission, .vision {
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
}

.mission {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(102, 126, 234, 0.1));
    border: 1px solid var(--accent-color);
}

.vision {
    background: linear-gradient(135deg, rgba(255, 0, 110, 0.1), rgba(245, 87, 108, 0.1));
    border: 1px solid var(--accent-pink);
}

.mission h3, .vision h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.mission p, .vision p {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
}

/* ==================== 포트폴리오 섹션 ==================== */
.portfolio {
    padding: 100px 0;
    background: var(--bg-light);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--bg-white);
    border-radius: 15px;
    overflow: hidden;
    transition: all var(--transition);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
}

.portfolio-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    color: white;
    text-align: center;
    opacity: 0;
    transition: opacity var(--transition);
}

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

.portfolio-overlay h4 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.portfolio-overlay p {
    font-size: 0.9rem;
}

.portfolio-info {
    padding: 2rem;
}

.portfolio-info h4 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.portfolio-category {
    font-size: 0.85rem;
    color: var(--accent-color);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-result {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ==================== 팀 섹션 ==================== */
.team {
    padding: 100px 0;
    background: var(--bg-white);
}

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

.team-member {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    transition: all var(--transition);
    border: 1px solid var(--border-color);
}

.team-member:hover {
    border-color: var(--accent-color);
    box-shadow: 0 15px 35px rgba(0, 212, 255, 0.15);
}

.member-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-pink));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    font-weight: bold;
    margin: 0 auto 1rem;
}

.team-member h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
    font-weight: 400;
}

.team-member p {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.member-role {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--accent-color);
}

/* ==================== 연락처 섹션 ==================== */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

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

.contact-form {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1);
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-pink));
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.info-item {
    padding: 1.5rem;
    background: var(--bg-white);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.info-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.info-item p {
    color: var(--text-light);
    line-height: 1.8;
}

.info-item a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition);
}

.info-item a:hover {
    color: var(--accent-pink);
}

/* ==================== 푸터 ==================== */
.footer {
    background: var(--primary-color);
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-section h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-section ul li a:hover {
    color: var(--accent-color);
}

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

.social-links a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: all var(--transition);
}

.social-links a:hover {
    background: var(--accent-color);
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ==================== 반응형 디자인 ==================== */
@media (max-width: 768px) {
    .hero {
        min-height: 80vh;
        flex-direction: column;
        justify-content: center;
        padding: 50px 0;
    }

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

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

    .hero-decoration {
        width: 300px;
        height: 300px;
        right: -150px;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: white;
        gap: 0;
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li a {
        display: block;
        padding: 1rem 1.5rem;
    }

    .hamburger {
        display: flex;
    }

    .mission-vision {
        grid-template-columns: 1fr;
    }

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

    .section-header h2 {
        font-size: 2rem;
    }

    .hero-title {
        line-height: 1.3;
    }

    .about, .portfolio, .team, .contact {
        padding: 60px 0;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .section-header h2 {
        font-size: 1.8rem;
    }

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

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

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

    .hero-decoration {
        display: none;
    }
}