/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

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

.nav-logo a {
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    color: #333;
    letter-spacing: 2px;
}

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

.nav-link {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    letter-spacing: 1px;
}

.nav-link:hover {
    color: #666;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.hero-slide.active {
    opacity: 1;
}

.hero-bg {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
}

/* 모바일에서 배경 이미지 가득 채우기 */
@media (max-width: 768px) {
    .hero {
        height: 60vh;
    }
    
    .hero-bg {
        background-size: cover;
        background-position: center center;
        background-attachment: scroll;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 50vh;
    }
    
    .hero-bg {
        background-size: cover;
        background-position: center center;
        background-attachment: scroll;
    }
}



.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}


.hero-content {
    max-width: 800px;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: 4px;
    line-height: 1.2;
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 0.8rem !important;
        font-weight: 700 !important;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 0.6rem !important;
        font-weight: 700 !important;
    }
}

.title-line {
    display: block;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    letter-spacing: 2px;
}

@media (max-width: 768px) {
    .hero-subtitle {
        font-size: 0.4rem !important;
        font-weight: 300 !important;
    }
}

@media (max-width: 480px) {
    .hero-subtitle {
        font-size: 0.3rem !important;
        font-weight: 300 !important;
    }
}

.hero-subtitle p {
    margin: 0.5rem 0;
}

.hero-description {
    margin-top: 2rem;
}

.typing-text {
    font-size: 1.1rem;
    line-height: 1.6;
    color: white;
    font-weight: bold;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (max-width: 768px) {
    .typing-text {
        font-size: 0.3rem !important;
        min-height: 40px !important;
        line-height: 1.1 !important;
    }
}

@media (max-width: 480px) {
    .typing-text {
        font-size: 0.25rem !important;
        min-height: 30px !important;
        line-height: 1.1 !important;
    }
}

.typing-text div {
    margin: 0.3rem 0;
}

.typing-text::after {
    content: '|';
    animation: blink 1s infinite;
    color: white;
    font-weight: bold;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

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

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 3rem;
    letter-spacing: 2px;
}

/* About Section */
.about {
    background: #fff;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Projects Section */
.projects {
    background: #f8f9fa;
}

.project-slider {
    text-align: center;
}

.slider-container {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.slide {
    display: none;
    text-align: center;
}

.slide.active {
    display: block;
}

.slide-title {
    margin-bottom: 2rem;
    text-align: center;
}

.slide-title h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #333;
}

.slide-title p {
    font-size: 1.3rem;
    font-weight: 500;
    color: #666;
}

.slide img {
    width: 100%;
    max-width: 1000px;
    aspect-ratio: 16/9;
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    color: #333;
    transition: all 0.3s ease;
    z-index: 10;
}

.slider-btn:hover {
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.prev-btn {
    left: 20px;
}

.next-btn {
    right: 20px;
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 2rem;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: background 0.3s ease;
}

.dot.active {
    background: #667eea;
}

/* Features Section */
.features {
    background: #fff;
}

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

.feature-item {
    text-align: center;
    padding: 2rem;
    border-radius: 8px;
    background: #f8f9fa;
    transition: transform 0.3s ease;
}

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

.feature-number {
    font-size: 3rem;
    font-weight: 700;
    color: #666;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-item p {
    color: #666;
    font-size: 1rem;
}

/* Services Section */
.services {
    background: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.service-item {
    text-align: center;
    overflow: hidden;
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.service-item:hover {
    transform: translateY(-5px);
}

.service-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.service-item h3 {
    padding: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

/* Experience Section */
.experience {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.experience-content h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    font-weight: 700;
}

.experience-content p {
    font-size: 1.2rem;
    line-height: 1.8;
}

/* CV Section */
.cv {
    background: #fff;
}

.cv-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

.cv-section h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    text-align: center;
}

.cv-list {
    list-style: none;
    font-size: 1.1rem;
    line-height: 2;
}

.cv-list li {
    margin-bottom: 0.5rem;
    padding-left: 1rem;
}

.cv-map h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    font-weight: 600;
    text-align: center;
}

.map-container {
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: 1rem;
}


/* Contact Section */
.contact {
    background: #f8f9fa;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    font-size: 1rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 1rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
    background-color: white;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    padding: 10px;
}

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

.form-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: #333;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease;
    letter-spacing: 1px;
}

.submit-btn:hover {
    background: #555;
}

/* Footer */
.footer {
    background: #333;
    color: white;
    text-align: center;
    padding: 2rem 0;
}

.footer-content p {
    margin: 0.5rem 0;
    font-size: 0.9rem;
    line-height: 1.5;
}

.footer-content p:first-child {
    font-size: 0.85rem;
    color: #ccc;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }

    .hero-subtitle {
        font-size: 1.3rem;
    }

    .typing-text {
        font-size: 1.05rem;
        min-height: 180px;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
    }

    .nav-menu.active {
        left: 0;
    }




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

    .slider-container {
        max-width: 100%;
    }
    
    .slide img {
        aspect-ratio: 16/9;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .prev-btn {
        left: 10px;
    }
    
    .next-btn {
        right: 10px;
    }

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

    .services-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
    
    .cv-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .experience-content h2 {
        font-size: 2rem;
    }

    .experience-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 1.8rem;
    }

    .container {
        padding: 0 15px;
    }

    section {
        padding: 60px 0;
    }

    .footer-content p {
        font-size: 0.75rem;
        line-height: 1.4;
    }

    .footer-content p:first-child {
        font-size: 0.7rem;
    }
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}