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

html {
    scroll-behavior: smooth;
}

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

/* CSS Variables */
:root {
    --brand-color: #131b4c;
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #3b82f6;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --gradient: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(2px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: var(--bg-white);
    box-shadow: var(--shadow);
}

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

.nav-logo {
    line-height: 1;
}

.nav-logo img {
    filter: drop-shadow(1px 1px 2px white);
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 1.1em;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
    transform: scale(calc(0.96));
}

.btn-secondary:hover {
    background: var(--accent-color);
    border: 2px solid var(--accent-color);
    color: white;
}

.btn-dark {
    background: transparent;
    color: var(--brand-color);
    border: 2px solid var(--brand-color);
    transform: scale(calc(0.96));
}

.btn-dark:hover {
    background: var(--accent-color);
    border: 2px solid var(--accent-color);
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Hero Section */
.hero {
    /* background: var(--gradient); */
    background-image: url("./images/bg.jpg");
    background-size: cover;
    background-repeat: no-repeat;
    color: white;
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0; /* top, right, bottom, left 모두 0 */
  background: rgba(0, 0, 0, 0.5); /* 어두운 오버레이 */
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px black;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #fbbf24;
    text-shadow: 2px 2px 10px black;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    opacity: 0.9;
    text-shadow: 2px 2px 10px black;
}

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

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

.hero-icon {
    font-size: 8rem;
    color: rgba(255, 255, 255, 0.3);
    animation: float 3s ease-in-out infinite;
}

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

/* About Section */
.about {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.about-text h3 {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.highlight-text {
    font-size: 1.3rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 2rem;
}

.feature-list {
    margin: 2rem 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: white;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.feature-item i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.cta-text {
    background: var(--primary-color);
    color: white;
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    font-size: 1.1rem;
}

/* Services Section */
.services {
    padding: 80px 0;
    background: var(--bg-white);
}

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

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border-top: 4px solid var(--primary-color);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: white;
}

.service-card h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Values Section */
.values {
    padding: 80px 0;
    background: var(--bg-light);
}

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

.value-card {
    background: white;
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

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

.value-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2.5rem;
    color: white;
}

.value-card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.value-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Process Section */
.process {
    padding: 80px 0;
    background: var(--bg-white);
}

.process-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1rem;
    row-gap: 2.5rem;
}

.process-step {
    flex: 1;
    min-width: 170px;
    max-width: 200px;
    width: 100%;
    text-align: center;
    position: relative;
}

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    z-index: 2;
}

.step-content {
    background: white;
    padding: 3rem 1.5rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
    min-height: 233px;
}

.step-content:hover {
    transform: translateY(-5px);
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.step-content h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.process-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 0 0.5rem;
}


/* Q&A 섹션 */
.faq {
    padding: 80px 0;
    background: var(--bg-white);
}

.faq-grid {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
}

.faq-item {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.faq-question {
    color: black;
    border: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.5s ease;
}

.faq-question:hover {
    background: #d9ebfd;
}

.faq-question h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
    line-height: 1.4;
    flex: 1;
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: bold;
    transition: transform 0.5s ease;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
}

.faq-question.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 2rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s linear, padding 0s linear 0.5s;
}

.faq-item.active .faq-answer {
    padding: 2rem;
    max-height: 1000px;
    transition: max-height 0.5s linear;
}

.faq-answer p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-main-answer {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 2rem;
}

.faq-features {
    list-style: none;
    margin: 1.5rem 0;
    padding: 0;
}

.faq-features li {
    padding: 0.5rem 0;
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.faq-features li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.faq-conclusion {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    font-weight: 600;
    color: var(--primary-color);
    margin-top: 1.5rem;
}

.notice {
    background: var(--bg-light);
    color: var(--text-secondary);
    padding: 0.8rem;
    border-radius: 8px;
    font-weight: 500;
    border-left: 4px solid #d2d2d2;
    margin-bottom: 1em;
}

.service-highlight {
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    padding: 1.2rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.service-highlight p {
    color: var(--accent-color);
    margin: 0;
    font-weight: 500;
}


/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.contact-details h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-details p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.contact-details a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
}

.kakao-link {
    background: #fee500;
    color: #3c1e1e !important;
    padding: 8px 16px;
    border-radius: 6px;
    text-decoration: none !important;
    font-weight: 600;
    transition: all 0.3s ease;
}

.kakao-link:hover {
    background: #fcd34d;
    transform: translateY(-1px);
}

.contact-cta {
    align-items: center;
    text-align: center;
    padding: 135px 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.contact-cta h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-logo h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.footer-subtitle {
    color: #9ca3af;
    margin-bottom: 1rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

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

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

.footer-section ul li a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 1rem;
    text-align: center;
    color: #9ca3af;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar {
        padding: 0.5rem 0px;
    }
    .m-br {
        display: block;
    }

    .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: var(--shadow);
        padding: 2rem 0;
        gap: 0px;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li {
        padding: 1rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child {
        border-bottom: none;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .process-flow {
        flex-direction: column;
    }
    
    .process-arrow {
        transform: rotate(90deg);
        margin: 1rem 0;
    }

    .faq-question {
        padding: 1.2rem 1.5rem;
    }
    
    .faq-question h3 {
        font-size: 1.1rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 1.5rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .btn-secondary, .btn-dark {
        transform: none;
    }

    .contact-cta .btn {
        min-width: 80%;
        margin: 5px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .faq-question {
        padding: 1rem;
    }
    
    .faq-answer .faq-answer {
        padding: 1.2rem;
    }
    
    .faq-main-answer {
        font-size: 1.1rem;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .services-grid,
    .values-grid {
        gap: 1rem;
    }
    
    .service-card,
    .value-card {
        padding: 1.5rem;
    }
}

/* Smooth scrolling and animations */
@media (prefers-reduced-motion: no-preference) {
    .service-card,
    .value-card,
    .step-content {
        animation: fadeInUp 0.6s ease-out;
    }
    
    .service-card:nth-child(2) { animation-delay: 0.1s; }
    .service-card:nth-child(3) { animation-delay: 0.2s; }
    .service-card:nth-child(4) { animation-delay: 0.3s; }
    .service-card:nth-child(5) { animation-delay: 0.4s; }
}

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

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}