@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard.min.css");
@import url("https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css");

:root {
  --primary: #0B132B; /* Deep Navy */
  --secondary: #F4F6F9; /* Clean White/Gray */
  --accent: #00A86B; /* Emerald Tech Green */
  --text-dark: #1C2331;
  --text-light: #6c757d;
  --font-main: 'Pretendard', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-main); background-color: var(--secondary); color: var(--text-dark); line-height: 1.6; font-size: 16px; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; display: block; }

/* Typography - Mobile First & Huge */
h1 { font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 800; line-height: 1.2; letter-spacing: -0.02em; margin-bottom: 20px;}
h2 { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; margin-bottom: 1.5rem; }
p { font-size: clamp(1rem, 1.5vw, 1.2rem); color: var(--text-light); }

/* Header */
header { background: #fff; padding: 20px 5%; display: flex; justify-content: space-between; align-items: center; box-shadow: 0 2px 10px rgba(0,0,0,0.05); position: sticky; top: 0; z-index: 100; }
.logo-container { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.5rem; color: var(--primary); }
.logo-container img { width: 40px; height: 40px; }
nav ul { display: flex; gap: 30px; list-style: none; }
nav ul li a { font-weight: 600; transition: color 0.3s; }
nav ul li a:hover { color: var(--accent); }
.btn-cta { background: var(--accent); color: #fff; padding: 12px 24px; border-radius: 8px; font-weight: 700; transition: transform 0.3s, background 0.3s; }
.btn-cta:hover { background: #008f5a; transform: translateY(-2px); }

/* Hero */
.hero { padding: 100px 5%; background: var(--primary); color: #fff; display: flex; flex-direction: column; align-items: center; text-align: center; }
.hero h1 { color: #fff; }
.hero p { color: #d0d6e2; max-width: 800px; margin: 0 auto 40px; }

/* Sections */
section { padding: 80px 5%; }
.container { max-width: 1200px; margin: 0 auto; }

/* Tech/Random Section */
.tech-logos { display: flex; justify-content: center; gap: 40px; flex-wrap: wrap; margin-top: 40px; filter: grayscale(100%); opacity: 0.6; }
.tech-logos i { font-size: 3rem; color: var(--primary); }

/* About & Features */
.split-layout { display: flex; flex-wrap: wrap; gap: 50px; align-items: center; }
.split-layout > div { flex: 1; min-width: 300px; }
.img-wrapper { border-radius: 20px; overflow: hidden; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }
.feature-list { list-style: none; margin-top: 30px; }
.feature-list li { margin-bottom: 15px; font-size: 1.2rem; display: flex; align-items: center; gap: 10px; font-weight: 600;}
.feature-list i { color: var(--accent); font-size: 1.5rem; }

/* FAQ */
.faq-container { max-width: 800px; margin: 0 auto; }
details { background: #fff; margin-bottom: 15px; border-radius: 10px; padding: 20px; box-shadow: 0 4px 6px rgba(0,0,0,0.02); cursor: pointer; }
summary { font-size: 1.2rem; font-weight: 700; list-style: none; outline: none; display: flex; justify-content: space-between; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '\f078'; font-family: 'FontAwesome'; color: var(--accent); }
details[open] summary::after { content: '\f077'; }
details p { margin-top: 15px; padding-top: 15px; border-top: 1px solid #eee; }

/* Lead Form */
.form-section { background: var(--primary); color: #fff; border-radius: 20px; padding: 60px 5%; margin: 80px 5%; text-align: center; box-shadow: 0 20px 50px rgba(0,0,0,0.2); }
.form-section h2 { color: #fff; }
.form-wrapper { background: #fff; color: var(--text-dark); max-width: 600px; margin: 40px auto 0; border-radius: 15px; padding: 40px; text-align: left; box-shadow: 0 10px 30px rgba(0,0,0,0.1); }
.step { display: none; animation: fadeIn 0.5s ease-in-out; }
.step.active { display: block; }
.step-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 20px; color: var(--primary); }
.input-group { margin-bottom: 20px; }
label { display: block; margin-bottom: 8px; font-weight: 600; }
input[type="text"], input[type="tel"], input[type="email"], select { width: 100%; padding: 15px; border: 2px solid #eee; border-radius: 8px; font-size: 1.1rem; font-family: var(--font-main); transition: border-color 0.3s; }
input:focus, select:focus { outline: none; border-color: var(--accent); }
input[type="range"] { width: 100%; margin: 20px 0; accent-color: var(--accent); }
.slider-val { font-size: 1.5rem; font-weight: 800; color: var(--accent); text-align: center; display: block; }
.radio-group { display: flex; gap: 10px; flex-wrap: wrap; }
.radio-btn { flex: 1; text-align: center; padding: 15px; background: #eee; border-radius: 8px; cursor: pointer; font-weight: 600; transition: 0.3s; }
.radio-btn.selected { background: var(--accent); color: #fff; }
.btn-next, .btn-submit { width: 100%; background: var(--accent); color: #fff; padding: 16px; border: none; border-radius: 8px; font-size: 1.2rem; font-weight: 700; cursor: pointer; margin-top: 20px; transition: 0.3s; }
.btn-submit { background: var(--primary); }
.btn-next:hover, .btn-submit:hover { opacity: 0.9; }
.privacy-check { display: flex; align-items: flex-start; gap: 10px; font-size: 0.9rem; margin-top: 20px; }
.privacy-check input { margin-top: 5px; }
.recaptcha-text { font-size: 0.8rem; color: #aaa; text-align: center; margin-top: 15px; }
.success-message { display: none; text-align: center; padding: 40px 0; }
.success-message i { font-size: 4rem; color: var(--accent); margin-bottom: 20px; }

/* Footer & Legal */
footer { background: #1C2331; color: #fff; padding: 60px 5% 30px; font-size: 0.9rem; }
.footer-links { display: flex; justify-content: center; gap: 30px; margin-bottom: 40px; flex-wrap: wrap; }
.footer-links a { color: #a0aabf; font-weight: 600; transition: color 0.3s; }
.footer-links a:hover { color: #fff; }
.company-info { text-align: center; color: #8a96ad; max-width: 900px; margin: 0 auto; line-height: 1.8; }
.company-info p { font-size: 0.9rem; margin-bottom: 10px; }
.cert-badges { display: flex; justify-content: center; gap: 15px; margin-top: 30px; }
.cert-badges span { padding: 8px 15px; border: 1px solid #4a5568; border-radius: 5px; font-size: 0.8rem; font-weight: 700; color: #a0aabf; }

/* Legal Pages Containers */
.legal-container { max-width: 900px; margin: 80px auto; background: #fff; padding: 60px; border-radius: 15px; box-shadow: 0 10px 40px rgba(0,0,0,0.05); }
.legal-container h1 { font-size: 2rem; margin-bottom: 30px; border-bottom: 2px solid var(--accent); padding-bottom: 15px; }
.legal-container h3 { margin: 25px 0 15px; color: var(--primary); }
.legal-container p { margin-bottom: 15px; }

/* Cookie Banner */
.cookie-banner { position: fixed; bottom: -100px; left: 0; width: 100%; background: #fff; padding: 20px 5%; box-shadow: 0 -5px 20px rgba(0,0,0,0.1); display: flex; justify-content: space-between; align-items: center; transition: bottom 0.5s; z-index: 1000; flex-wrap: wrap; gap: 20px; }
.cookie-banner.show { bottom: 0; }
.cookie-text p { font-size: 0.95rem; font-weight: 600; margin:0; }
.cookie-text span { font-size: 0.8rem; color: #888; }
.cookie-btns button { padding: 10px 20px; border: none; border-radius: 5px; font-weight: 700; cursor: pointer; margin-left: 10px; }
.btn-accept { background: var(--primary); color: #fff; }
.btn-necessary { background: #eee; color: var(--text-dark); }

@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

@media(max-width: 768px) {
  nav { display: none; }
  .split-layout { flex-direction: column; }
  .form-section { margin: 40px 0; border-radius: 0; }
  .legal-container { margin: 40px 5%; padding: 30px; }
}