/* style.css */
@charset "utf-8";
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&display=swap');

:root {
    --primary-color: #0056b3;
    --secondary-color: #f4f6f9;
    --text-dark: #333333;
    --text-light: #666666;
    --white: #ffffff;
    --border-color: #ddd;
    --transition: all 0.3s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Noto Sans KR', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}
.header-inner { display: flex; justify-content: space-between; align-items: center; height: 80px; }
.logo { font-size: 24px; font-weight: 700; color: var(--primary-color); display: flex; align-items: center; gap: 10px; }
.gnb { display: flex; gap: 40px; }
.gnb li a { font-size: 17px; font-weight: 500; transition: var(--transition); }
.gnb li a:hover, .gnb li a.active { color: var(--primary-color); font-weight: 700; }
.btn-inquiry { padding: 10px 20px; background-color: var(--primary-color); color: var(--white); border-radius: 4px; font-weight: 500; transition: var(--transition); }
.btn-inquiry:hover { background-color: #004494; }

/* Sub Page Hero (Common) */
.sub-hero {
    margin-top: 80px;
    height: 300px;
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('https://source.unsplash.com/random/1920x600/?office') no-repeat center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}
.sub-hero h2 { font-size: 40px; margin-bottom: 10px; }

/* Sections */
.section { padding: 80px 0; }
.bg-light { background-color: var(--secondary-color); }
.section-title { font-size: 32px; margin-bottom: 40px; text-align: center; font-weight: 700; }

/* Grid Layouts */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; }
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

/* Solutions Card */
.card { background: white; padding: 40px; border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); text-align: center; transition: var(--transition); border: 1px solid #eee; }
.card:hover { transform: translateY(-5px); border-color: var(--primary-color); }
.card-icon { font-size: 40px; color: var(--primary-color); margin-bottom: 20px; }

/* Form */
.contact-form { max-width: 700px; margin: 0 auto; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; margin-bottom: 5px; font-weight: 500; }
.form-control { width: 100%; padding: 12px; border: 1px solid var(--border-color); border-radius: 4px; }
.btn-submit { width: 100%; padding: 15px; background: var(--primary-color); color: white; border: none; border-radius: 4px; cursor: pointer; font-size: 16px; font-weight: bold; }

/* Footer */
footer { background: #222; color: #999; padding: 60px 0; font-size: 14px; margin-top: auto; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; }
.footer-logo { color: white; font-size: 20px; font-weight: bold; margin-bottom: 10px; display: block; }