@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.8/dist/web/static/pretendard.css");

:root {
    --primary: #0A192F; /* Deep Navy Space */
    --primary-light: #112240;
    --secondary: #2DD4BF; /* Tech Teal */
    --secondary-hover: #14B8A6;
    --accent: #F97316; /* Energetic Orange */
    --text-main: #1E293B;
    --text-muted: #64748B;
    --bg-main: #FFFFFF;
    --bg-alt: #F8FAFC;
    --border: #E2E8F0;
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 25px 50px -12px rgb(0 0 0 / 0.15);
    --font-main: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font-main); color: var(--text-main); background: var(--bg-main); line-height: 1.6; word-break: keep-all; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

.yg-container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.yg-header { position: sticky; top: 0; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); z-index: 100; border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 85px; }
.logo { display: flex; align-items: center; gap: 12px; font-weight: 900; font-size: 1.4rem; color: var(--primary); letter-spacing: -0.03em; }
.main-nav ul { list-style: none; display: flex; gap: 36px; }
.main-nav a { font-weight: 700; font-size: 1.05rem; color: var(--text-main); transition: color 0.3s; }
.main-nav a:hover { color: var(--secondary); }

/* Hero */
.yg-hero { position: relative; padding: 160px 0; color: white; text-align: left; overflow: hidden; }
.hero-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: linear-gradient(105deg, rgba(10, 25, 47, 0.95) 0%, rgba(17, 34, 64, 0.8) 100%), url('https://images.unsplash.com/photo-1578575437130-527eed3abbec?auto=format&fit=crop&q=80&w=1920') center/cover; z-index: -1; }
.hero-content { position: relative; z-index: 2; max-width: 900px; }
.hero-badge { display: inline-flex; align-items: center; gap: 10px; padding: 8px 24px; background: rgba(45, 212, 191, 0.15); border: 1px solid var(--secondary); color: var(--secondary); border-radius: 50px; font-weight: 800; font-size: 0.95rem; margin-bottom: 30px; letter-spacing: 0.05em; text-transform: uppercase; }
.hero-title { font-size: clamp(3rem, 6vw, 5.5rem); font-weight: 900; line-height: 1.15; letter-spacing: -0.04em; margin-bottom: 24px; text-shadow: 0 4px 12px rgba(0,0,0,0.4); }
.hero-title .highlight { color: var(--secondary); }
.hero-subtitle { font-size: clamp(1.15rem, 2vw, 1.35rem); color: #CBD5E1; margin-bottom: 50px; font-weight: 400; line-height: 1.7; }
.btn-primary { display: inline-flex; align-items: center; gap: 12px; background: var(--secondary); color: var(--primary); padding: 22px 48px; border-radius: 6px; font-weight: 900; font-size: 1.2rem; transition: all 0.3s ease; box-shadow: 0 10px 25px rgba(45, 212, 191, 0.3); }
.btn-primary:hover { background: var(--secondary-hover); transform: translateY(-4px); box-shadow: 0 15px 35px rgba(45, 212, 191, 0.4); }

/* Vision / About */
.yg-vision { padding: 130px 0; background: var(--bg-main); }
.vision-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; align-items: center; }
.vision-image img { border-radius: 12px; box-shadow: var(--shadow-lg); }
.vision-text h2 { font-size: 2.8rem; font-weight: 900; color: var(--primary); margin-bottom: 24px; line-height: 1.2; letter-spacing: -0.03em; }
.vision-text p { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 36px; }
.vision-bullets { list-style: none; display: flex; flex-direction: column; gap: 20px; }
.vision-bullets li { display: flex; align-items: center; gap: 16px; font-size: 1.15rem; font-weight: 700; color: var(--primary); }
.vision-bullets i { color: var(--accent); font-size: 1.5rem; width: 30px; text-align: center; }

/* Features */
.yg-features { padding: 130px 0; background: var(--bg-alt); }
.section-heading { text-align: center; margin-bottom: 70px; }
.section-heading h2 { font-size: 3rem; font-weight: 900; color: var(--primary); margin-bottom: 16px; letter-spacing: -0.03em; }
.section-heading p { font-size: 1.2rem; color: var(--text-muted); }
.features-asym { display: grid; grid-template-columns: 5fr 7fr; gap: 80px; align-items: center; }
.feat-img-box img { border-radius: 12px; box-shadow: var(--shadow-lg); border-bottom: 10px solid var(--secondary); }
.feat-content-box { display: flex; flex-direction: column; gap: 30px; }
.feat-item { display: flex; gap: 24px; background: white; padding: 35px; border-radius: 12px; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: transform 0.3s; }
.feat-item:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--secondary); }
.feat-icon { width: 65px; height: 65px; background: rgba(45, 212, 191, 0.1); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.8rem; color: var(--secondary); flex-shrink: 0; }
.feat-item h3 { font-size: 1.4rem; font-weight: 800; color: var(--primary); margin-bottom: 12px; }
.feat-item p { color: var(--text-muted); line-height: 1.6; font-size: 1.05rem; }

/* Stats */
.yg-stats { padding: 90px 0; background: var(--primary); color: white; border-top: 4px solid var(--secondary); }
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; text-align: center; }
.stat-num { display: block; font-size: 4.5rem; font-weight: 900; color: var(--secondary); line-height: 1; margin-bottom: 16px; letter-spacing: -0.02em; }
.stat-desc { font-weight: 700; font-size: 1.2rem; color: #CBD5E1; }

/* Lead Form */
.yg-lead-form { padding: 130px 0; background: var(--bg-main); }
.form-wrapper { max-width: 850px; }
.form-header { text-align: center; margin-bottom: 50px; }
.form-header h2 { font-size: 2.8rem; font-weight: 900; color: var(--primary); margin-bottom: 16px; letter-spacing: -0.03em; }
.form-header p { font-size: 1.15rem; color: var(--text-muted); }
.form-container { background: white; padding: 60px; border-radius: 16px; box-shadow: 0 10px 40px rgba(10, 25, 47, 0.08); border: 1px solid var(--border); }
.input-row { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.input-group { margin-bottom: 24px; }
.input-group label { display: block; font-weight: 800; margin-bottom: 10px; color: var(--primary); }
.input-group input { width: 100%; padding: 18px; border: 2px solid var(--border); border-radius: 8px; font-size: 1.05rem; font-family: var(--font-main); transition: all 0.3s; background: var(--bg-alt); }
.input-group input:focus { outline: none; border-color: var(--secondary); background: white; box-shadow: 0 0 0 4px rgba(45, 212, 191, 0.1); }
.checkbox-group { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 36px; font-size: 1rem; color: var(--text-muted); }
.checkbox-group input { margin-top: 5px; width: 18px; height: 18px; accent-color: var(--secondary); }
.checkbox-group a { color: var(--primary); text-decoration: underline; font-weight: 800; }
.btn-submit { width: 100%; padding: 22px; background: var(--primary); color: white; border: none; border-radius: 8px; font-size: 1.25rem; font-weight: 900; cursor: pointer; display: flex; justify-content: center; align-items: center; gap: 12px; transition: background 0.3s; }
.btn-submit:hover { background: var(--primary-light); }
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }

/* Success Message */
.success-message { text-align: center; padding: 40px 20px; }
.success-icon i { font-size: 5rem; color: var(--secondary); margin-bottom: 24px; }
.success-message h3 { font-size: 2rem; font-weight: 900; color: var(--primary); margin-bottom: 16px; }
.success-message p { font-size: 1.1rem; color: var(--text-muted); }

/* FAQ */
.yg-faq { padding: 100px 0; background: var(--bg-alt); }
.faq-list { max-width: 850px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
details { background: white; border: 1px solid var(--border); border-radius: 8px; overflow: hidden; box-shadow: var(--shadow-sm); }
summary { padding: 24px; font-weight: 800; font-size: 1.2rem; color: var(--primary); cursor: pointer; list-style: none; position: relative; display: flex; justify-content: space-between; align-items: center; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '\f067'; font-family: "Font Awesome 6 Free"; font-weight: 900; color: var(--accent); transition: transform 0.3s; }
details[open] summary::after { content: '\f068'; transform: rotate(180deg); }
.details-content { padding: 0 24px 24px; color: var(--text-muted); line-height: 1.7; font-size: 1.1rem; }

/* Footer */
.yg-footer { background: #020617; color: #94A3B8; padding: 80px 0 40px; font-size: 0.95rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 60px; margin-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.1); padding-bottom: 40px; }
.footer-info h3 { color: white; font-size: 1.4rem; font-weight: 900; margin-bottom: 20px; }
.footer-info p { margin-bottom: 10px; }
.footer-links { display: flex; flex-direction: column; gap: 16px; }
.footer-links a { font-weight: 700; transition: color 0.3s; }
.footer-links a:hover { color: white; }
.highlight-link { color: var(--secondary); }
.footer-bottom { text-align: center; }

/* Legal Pages General */
.legal-page { background: var(--bg-alt); padding: 80px 0; }
.legal-card { background: white; padding: 70px; border-radius: 12px; box-shadow: var(--shadow-lg); border: 1px solid var(--border); }
.legal-card h1 { font-size: 2.5rem; font-weight: 900; color: var(--primary); margin-bottom: 40px; border-bottom: 4px solid var(--secondary); padding-bottom: 20px; display: inline-block; }
.legal-card h2 { font-size: 1.4rem; font-weight: 900; margin: 40px 0 16px; color: var(--primary); }
.legal-card p { margin-bottom: 16px; color: var(--text-muted); font-size: 1.1rem; line-height: 1.7; }
.legal-card ul { margin-left: 24px; margin-bottom: 16px; color: var(--text-muted); font-size: 1.1rem; line-height: 1.7; }
.map-container { width: 100%; height: 450px; border-radius: 12px; overflow: hidden; margin-top: 40px; border: 1px solid var(--border); }

/* Cookie Banner */
.cookie-banner { position: fixed; bottom: -100%; left: 0; width: 100%; background: var(--primary); color: white; padding: 24px; z-index: 9999; transition: bottom 0.5s cubic-bezier(0.4, 0, 0.2, 1); border-top: 4px solid var(--secondary); box-shadow: 0 -10px 30px rgba(0,0,0,0.3); }
.cookie-banner.show { bottom: 0; }
.cookie-content { max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.cookie-content p { font-size: 1rem; line-height: 1.5; color: #F8FAFC; font-weight: 500; }
.cookie-btns { display: flex; gap: 12px; flex-shrink: 0; }
.cookie-btns button { padding: 12px 24px; border: none; border-radius: 6px; font-weight: 800; cursor: pointer; transition: background 0.3s; }
.btn-cookie-accept { background: var(--secondary); color: var(--primary); }
.btn-cookie-accept:hover { background: var(--secondary-hover); }
.btn-cookie-decline { background: transparent; color: white; border: 1px solid rgba(255,255,255,0.4) !important; }
.btn-cookie-decline:hover { background: rgba(255,255,255,0.1); }

/* Mobile Responsive */
@media (max-width: 768px) {
    .main-nav { display: none; }
    .hero-title { font-size: 2.8rem; }
    .hero-content { text-align: center; }
    .vision-grid, .features-asym, .footer-grid, .stats-grid { grid-template-columns: 1fr; gap: 40px; }
    .features-asym { display: flex; flex-direction: column-reverse; }
    .input-row { grid-template-columns: 1fr; }
    .form-container { padding: 40px 20px; }
    .cookie-content { flex-direction: column; text-align: center; }
    .legal-card { padding: 40px 20px; }
    .stat-num { font-size: 3.5rem; }
}