@charset "UTF-8";

/* ===== CSS Variables ===== */
:root {
	--c-primary:        #0a1a3d;
	--c-primary-light:  #1e3a72;
	--c-secondary:      #00b4ff;
	--c-accent:         #c4a8ff;
	--c-accent-dark:    #7c5cdb;
	--c-text:           #ffffff;
	--c-text-sub:       #cfd8e6;
	--c-text-dark:      #1a2140;
	--c-text-dark-sub:  #5b6380;
	--c-bg-light:       #f4f7fb;
	--c-line:           #e3e8f1;

	--container: 1270px;
	--header-h: 80px;
	--header-h-mobile: 60px;

	--font-base: "Pretendard", "맑은 고딕", "Malgun Gothic", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;
}

/* ===== Reset ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body, h1, h2, h3, h4, h5, h6, p, ul, ol, li, dl, dt, dd, figure, blockquote, table, th, td {
	margin: 0; padding: 0;
}
body {
	font-family: var(--font-base);
	font-size: 16px;
	line-height: 1.6;
	color: var(--c-text-dark);
	background: #fff;
	-webkit-text-size-adjust: 100%;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
a:hover { color: var(--c-secondary); }
img { max-width: 100%; height: auto; vertical-align: middle; border: 0; }
button {
	font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0;
}
table { border-collapse: collapse; border-spacing: 0; width: 100%; }
th, td { text-align: left; vertical-align: top; }

/* ===== Utility ===== */
.mobile-only { display: none; }
@media (max-width: 768px) { .mobile-only { display: inline; } }

/* ===== Container ===== */
.container {
	width: 100%;
	max-width: var(--container);
	margin: 0 auto;
	padding: 0 20px;
}

/* ===== Section common ===== */
.section { padding: 100px 0; position: relative; }
.section-title {
	font-size: 38px;
	font-weight: 800;
	text-align: center;
	margin-bottom: 60px;
	color: var(--c-primary);
	letter-spacing: -0.02em;
}
.section-title::after {
	content: "";
	display: block;
	width: 60px;
	height: 4px;
	background: var(--c-accent-dark);
	margin: 18px auto 0;
	border-radius: 2px;
}

/* ===== Buttons ===== */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 14px 28px;
	background: var(--c-accent-dark);
	color: #fff;
	font-weight: 700;
	border-radius: 6px;
	transition: transform .2s, box-shadow .2s, background .2s;
}
.btn:hover {
	background: #9678e6;
	transform: translateY(-2px);
	box-shadow: 0 8px 20px rgba(124, 92, 219, 0.35);
	color: #fff;
}

/* ===== Responsive base ===== */
@media (max-width: 1024px) {
	.section { padding: 80px 0; }
	.section-title { font-size: 32px; margin-bottom: 50px; }
}
@media (max-width: 768px) {
	body { font-size: 15px; }
	.section { padding: 60px 0; }
	.section-title { font-size: 26px; margin-bottom: 40px; }
	.section-title::after { width: 50px; height: 3px; margin-top: 14px; }
}