@import url('https://fonts.googleapis.com/css2?family=Black+Han+Sans&family=Noto+Sans+KR:wght@300;400;700;900&display=swap');

:root {
    --primary-color: #1E3A8A; /* Deep Navy */
    --secondary-color: #2563EB; /* Bright Blue */
    --accent-color: #F97316; /* Industrial Orange */
    --bg-color: #F8FAFC;
    --text-color: #0F172A;
    --light-text: #475569;
    --white: #FFFFFF;
    --shadow: 0 15px 40px rgba(30, 58, 138, 0.08);
    --border-radius: 16px;
}

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

body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 { 
    font-family: 'Black Han Sans', sans-serif; 
    font-weight: 400; 
    letter-spacing: -0.02em; 
    word-break: keep-all;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Header */
header {
    background: var(--white);
    padding: 1.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo { display: flex; align-items: center; gap: 15px; font-size: 1.8rem; font-weight: 900; color: var(--primary-color); letter-spacing: -1px; }
.logo img { width: 42px; height: 42px; }

nav ul { display: none; }
@media (min-width: 992px) {
    nav ul { display: flex; gap: 3rem; }
    nav ul li a { font-weight: 700; font-size: 1.1rem; color: var(--text-color); transition: color 0.3s; }
    nav ul li a:hover { color: var(--secondary-color); }
}

.cta-nav {
    background: var(--accent-color); color: var(--white); padding: 0.8rem 1.8rem;
    border-radius: 8px; font-weight: 700; font-size: 1.1rem; transition: background 0.3s, transform 0.3s;
}
.cta-nav:hover { background: #EA580C; transform: translateY(-2px); }

/* Hero Section */
.hero {
    display: flex; flex-direction: column; align-items: center; text-align: center;
    padding: 8rem 5% 6rem; 
    background: linear-gradient(135deg, var(--primary-color) 0%, #0F172A 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
    background: radial-gradient(circle, rgba(37,99,235,0.1) 0%, transparent 60%);
    z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.hero h1 { font-size: 3.5rem; margin-bottom: 1.5rem; line-height: 1.1; }
.hero p { font-size: 1.4rem; margin-bottom: 3.5rem; max-width: 800px; color: #E2E8F0; font-weight: 300; }
.hero-img { 
    width: 100%; max-width: 1100px; border-radius: var(--border-radius); 
    box-shadow: 0 30px 60px rgba(0,0,0,0.5); margin-top: 2rem; border: 4px solid rgba(255,255,255,0.1);
}

/* Sections Common */
section { padding: 7rem 5%; }
.section-title { font-size: 3rem; text-align: center; margin-bottom: 4rem; color: var(--primary-color); }

/* Random 1: Stats */
.stats { display: grid; grid-template-columns: 1fr; gap: 2.5rem; background: var(--white); }
@media(min-width: 768px) { .stats { grid-template-columns: repeat(3, 1fr); } }
.stat-card { text-align: center; padding: 3.5rem 2rem; border-radius: var(--border-radius); box-shadow: var(--shadow); transition: transform 0.3s; background: #F8FAFC; border-bottom: 5px solid var(--secondary-color); }
.stat-card:hover { transform: translateY(-10px); }
.stat-card i { font-size: 3.5rem; color: var(--accent-color); margin-bottom: 1.5rem; }
.stat-card h3 { font-size: 3.2rem; margin-bottom: 0.5rem; color: var(--primary-color); }
.stat-card p { color: var(--light-text); font-weight: 700; font-size: 1.2rem; }

/* About & Features */
.split-section { display: flex; flex-direction: column; gap: 4rem; align-items: center; }
@media(min-width: 992px) { .split-section { flex-direction: row; } }
.split-content { flex: 1; }
.split-content h2 { font-size: 2.8rem; margin-bottom: 1.5rem; line-height: 1.2; color: var(--primary-color); }
.split-content p { font-size: 1.2rem; color: var(--light-text); margin-bottom: 2.5rem; }
.split-content ul li { margin-bottom: 1.5rem; display: flex; align-items: flex-start; gap: 15px; font-weight: 700; font-size: 1.2rem; }
.split-content ul li i { color: var(--accent-color); font-size: 1.5rem; margin-top: 4px; }
.split-image { flex: 1; width: 100%; }
.split-image img { width: 100%; border-radius: var(--border-radius); box-shadow: var(--shadow); object-fit: cover; }

/* Lead Form Section */
.lead-section { background: var(--primary-color); padding: 7rem 5%; text-align: center; position: relative; }
.lead-wrapper { max-width: 750px; margin: 0 auto; background: var(--white); padding: 4.5rem 3.5rem; border-radius: var(--border-radius); box-shadow: 0 25px 50px rgba(0,0,0,0.2); text-align: left; }
.lead-wrapper h2 { font-size: 2.6rem; margin-bottom: 1rem; color: var(--primary-color); text-align: center; }
.lead-wrapper p { margin-bottom: 3rem; color: var(--light-text); text-align: center; font-size: 1.15rem; }
.form-group { display: flex; flex-direction: column; gap: 1.5rem; margin-bottom: 2rem; }
.form-row { display: flex; flex-direction: column; gap: 1.5rem; }
@media(min-width: 768px) { .form-row { flex-direction: row; } .form-row input { flex: 1; } }
input { width: 100%; padding: 1.3rem; border: 2px solid #E2E8F0; border-radius: 8px; font-size: 1.1rem; font-family: inherit; transition: 0.3s; }
input:focus { outline: none; border-color: var(--secondary-color); box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1); }
.checkbox-group { display: flex; align-items: flex-start; gap: 12px; font-size: 1rem; color: var(--light-text); background: #F1F5F9; padding: 1.2rem; border-radius: 8px; }
.checkbox-group input { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--secondary-color); }
.submit-btn { width: 100%; padding: 1.5rem; background: var(--accent-color); color: var(--white); border: none; border-radius: 8px; font-size: 1.4rem; font-family: 'Black Han Sans', sans-serif; cursor: pointer; transition: 0.3s; margin-top: 1.5rem; }
.submit-btn:hover { background: #EA580C; transform: scale(1.02); }
.submit-btn:disabled { background: #94A3B8; cursor: not-allowed; transform: none; }
.success-msg { display: none; text-align: center; padding: 4rem 2rem; }
.success-msg i { font-size: 5rem; color: #10B981; margin-bottom: 1.5rem; }
.success-msg h3 { font-size: 2.5rem; margin-bottom: 1rem; color: var(--primary-color); }
.success-msg p { font-size: 1.2rem; color: var(--light-text); }

/* Random 2: Service Grid */
.service-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media(min-width: 768px) { .service-grid { grid-template-columns: repeat(2, 1fr); } }
@media(min-width: 1024px) { .service-grid { grid-template-columns: repeat(4, 1fr); } }
.service-card { background: var(--white); padding: 3rem 2rem; border-radius: var(--border-radius); text-align: center; box-shadow: var(--shadow); border: 1px solid #F1F5F9; }
.service-icon { width: 90px; height: 90px; background: #DBEAFE; color: var(--secondary-color); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 2.5rem; margin: 0 auto 1.5rem; }
.service-card h4 { font-size: 1.6rem; margin-bottom: 1rem; color: var(--primary-color); }
.service-card p { color: var(--light-text); font-size: 1.1rem; }

/* FAQ */
.faq-container { max-width: 900px; margin: 0 auto; }
details { background: var(--white); margin-bottom: 1.5rem; padding: 1.8rem 2.5rem; border-radius: 12px; box-shadow: 0 4px 15px rgba(0,0,0,0.03); cursor: pointer; border: 1px solid #E2E8F0; transition: 0.3s; }
details:hover { border-color: var(--secondary-color); }
summary { font-size: 1.3rem; font-weight: 700; color: var(--primary-color); list-style: none; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '\f067'; font-family: 'FontAwesome'; color: var(--accent-color); transition: 0.3s; font-size: 1.5rem; }
details[open] summary::after { content: '\f068'; }
details p { margin-top: 1.5rem; color: var(--light-text); padding-top: 1.5rem; border-top: 1px dashed #E2E8F0; font-size: 1.15rem; line-height: 1.7; }

/* Footer */
footer { background: #0F172A; color: #94A3B8; padding: 6rem 5% 3rem; margin-top: 4rem; }
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 4rem; margin-bottom: 4rem; border-bottom: 1px solid #334155; padding-bottom: 4rem; }
@media(min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer-info h3 { color: var(--white); font-size: 2rem; margin-bottom: 1.5rem; font-family: 'Black Han Sans', sans-serif; }
.footer-info p { margin-bottom: 0.8rem; font-size: 1.05rem; }
.footer-links h4 { color: var(--white); font-size: 1.4rem; margin-bottom: 1.5rem; font-family: 'Black Han Sans', sans-serif; }
.footer-links ul li { margin-bottom: 1.2rem; }
.footer-links ul li a { font-size: 1.1rem; transition: color 0.3s; }
.footer-links ul li a:hover { color: var(--accent-color); }
.copyright { text-align: center; font-size: 1rem; color: #64748B; }

/* Cookie Banner */
.cookie-banner { position: fixed; bottom: -150px; left: 0; right: 0; background: var(--white); padding: 2rem 5%; box-shadow: 0 -10px 40px rgba(0,0,0,0.15); display: flex; flex-direction: column; gap: 1.5rem; align-items: center; justify-content: space-between; transition: bottom 0.6s cubic-bezier(0.16, 1, 0.3, 1); z-index: 9999; border-top: 5px solid var(--secondary-color); }
@media(min-width: 992px) { .cookie-banner { flex-direction: row; } }
.cookie-banner.show { bottom: 0; }
.cookie-text { font-size: 1.05rem; color: var(--text-color); flex: 1; }
.cookie-btns { display: flex; gap: 1rem; width: 100%; justify-content: center; }
@media(min-width: 992px) { .cookie-btns { width: auto; } }
.cookie-btn { padding: 1rem 2rem; border: none; border-radius: 8px; font-weight: 700; font-size: 1.1rem; cursor: pointer; transition: 0.3s; }
.btn-accept { background: var(--primary-color); color: var(--white); }
.btn-accept:hover { background: var(--secondary-color); }
.btn-reject { background: #E2E8F0; color: var(--text-color); }
.btn-reject:hover { background: #CBD5E1; }

/* Legal Pages */
.legal-main { background: var(--bg-color); padding: 5rem 5%; }
.legal-container { background: var(--white); max-width: 1000px; margin: 0 auto; padding: 5rem; border-radius: var(--border-radius); box-shadow: var(--shadow); border-top: 8px solid var(--primary-color); }
.legal-container h1 { font-size: 3.5rem; color: var(--primary-color); margin-bottom: 3rem; text-align: center; border-bottom: 2px solid #F1F5F9; padding-bottom: 2rem; }
.legal-container h2 { font-size: 2rem; color: var(--secondary-color); margin: 3.5rem 0 1.5rem; font-family: 'Black Han Sans', sans-serif; }
.legal-container p { margin-bottom: 1.5rem; color: var(--text-color); font-size: 1.15rem; line-height: 1.8; }
.legal-container ul { margin-left: 2rem; margin-bottom: 2rem; list-style-type: disc; }
.legal-container ul li { margin-bottom: 0.8rem; font-size: 1.1rem; }

/* Extra Large Typography for Desktop */
@media (min-width: 1200px) {
    .hero h1 { font-size: 5rem; }
    .section-title { font-size: 3.8rem; }
    .split-content h2 { font-size: 3.2rem; }
}