/* 두레 사이트 스타일 (VS Code 사이트 구성). 색은 :root에만 둔다 — 정식 로고가 나오면 여기만 바꾼다 (설계 4.1) */
:root {
	--brand: #3F51B5;
	--brand-dark: #283593;
	--brand-soft: #E8EAF6;
	--text: #1F1F1F;
	--text-sub: #4D4D4D;
	--muted: #6B6B6B;
	--line: #E3E3E3;
	--paper: #FFFFFF;
	--paper-alt: #F6F7F9;
	--ink: #16181D;
	--wrap: 1200px;
	--font: "Segoe UI", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif;
	--mono: Consolas, "D2Coding", "Cascadia Mono", monospace;
	color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
	margin: 0;
	background: var(--paper);
	color: var(--text);
	font-family: var(--font);
	font-size: 16px;
	line-height: 1.65;
	word-break: keep-all;
	overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 12px; }
p { margin: 0 0 14px; }
code { font-family: var(--mono); font-size: 0.92em; background: var(--paper-alt); border: 1px solid var(--line); border-radius: 4px; padding: 1px 5px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 820px; }
.muted { color: var(--muted); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--paper); padding: 8px 14px; z-index: 10; }
.skip:focus { left: 8px; }

/* 머리글 */
.site-header { border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0; z-index: 5; }
.header-row { display: flex; align-items: center; gap: 28px; min-height: 56px; }
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--text); font-weight: 600; font-size: 17px; }
.brand:hover { text-decoration: none; }
.brand img { width: 24px; height: 24px; border-radius: 5px; }
.site-nav { display: flex; gap: 22px; flex: 1; }
.site-nav a { color: var(--text-sub); font-size: 14.5px; }
.site-nav a:hover { color: var(--text); text-decoration: none; }

/* 단추 */
.button { display: inline-flex; flex-direction: column; align-items: flex-start; background: var(--brand); color: #FFFFFF; border-radius: 3px; font-weight: 600; }
.button:hover { background: var(--brand-dark); text-decoration: none; }
.button-small { padding: 7px 14px; font-size: 14px; }
.button-large { padding: 12px 20px; font-size: 17px; }
.button-note { font-size: 12.5px; font-weight: 400; opacity: 0.88; margin-top: 2px; }
.fine { font-size: 12.5px; color: var(--muted); margin-top: 12px; }

/* 첫 화면 */
.hero { padding: 64px 0 56px; background: linear-gradient(var(--paper), var(--paper-alt)); border-bottom: 1px solid var(--line); }
.hero-row { display: grid; grid-template-columns: minmax(280px, 0.9fr) 1.6fr; gap: 48px; align-items: center; }
.hero h1 { font-size: 40px; font-weight: 600; }
.hero .lead { font-size: 17.5px; color: var(--text-sub); max-width: 30em; margin-bottom: 26px; }
.platforms { font-size: 13px; color: var(--muted); margin-top: 6px; }
.shot { border-radius: 8px; overflow: hidden; border: 1px solid #2B2B2B; box-shadow: 0 18px 48px rgba(16, 24, 40, 0.22); background: var(--ink); }

/* 기능 단락 */
.features { padding: 24px 0 40px; }
.feature { display: grid; grid-template-columns: 1fr 1.35fr; gap: 56px; align-items: center; padding: 56px 0; border-bottom: 1px solid var(--line); }
.feature:last-child { border-bottom: 0; }
.feature:nth-child(even) .feature-copy { order: 2; }
.feature h2 { font-size: 26px; font-weight: 600; }
.feature p { color: var(--text-sub); font-size: 16.5px; }
.feature .shot-small { max-width: 560px; justify-self: center; }

/* 일반 페이지 */
.page { padding: 48px 0 72px; }
.page h1 { font-size: 34px; font-weight: 600; margin-bottom: 18px; }
.page h2 { font-size: 22px; font-weight: 600; margin-top: 36px; }
.page h3 { font-size: 17px; font-weight: 600; margin-top: 24px; }
.page ul, .page ol { padding-left: 22px; margin: 0 0 14px; }
.page li { margin-bottom: 6px; }
.lead { font-size: 17px; color: var(--text-sub); }
.crumb { font-size: 14px; margin-bottom: 6px; }

/* 다운로드 */
.facts { display: grid; grid-template-columns: max-content 1fr; gap: 8px 20px; margin: 24px 0; padding: 20px 22px; background: var(--paper-alt); border: 1px solid var(--line); border-radius: 6px; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; }
.hash { font-family: var(--mono); font-size: 13px; }
.steps li { margin-bottom: 10px; }
.note { background: var(--brand-soft); border-left: 3px solid var(--brand); padding: 12px 16px; border-radius: 0 4px 4px 0; margin: 18px 0; }
.previous { list-style: none; padding: 0; }

/* 업데이트 내역 */
.updates-row { display: grid; grid-template-columns: 180px 1fr; gap: 48px; }
.version-nav { position: sticky; top: 80px; align-self: start; font-size: 14.5px; }
.version-nav h2 { font-size: 13px; color: var(--muted); font-weight: 600; margin: 6px 0 10px; }
.version-nav ul { list-style: none; padding: 0; margin: 0; }
.version-nav li { margin: 0; }
.version-nav a { display: block; padding: 4px 0; color: var(--text-sub); }
.version-nav a[aria-current] { color: var(--brand); font-weight: 600; }
.release { padding: 8px 0 32px; border-bottom: 1px solid var(--line); margin-bottom: 28px; scroll-margin-top: 80px; }
.release h2 { font-size: 26px; margin-top: 0; }
.release-meta { color: var(--muted); font-size: 14px; }
.release-summary { font-size: 16.5px; }
.release-item h3 { margin-top: 18px; }
.release-item img { margin-top: 10px; border: 1px solid var(--line); border-radius: 6px; }

/* 문서·자주 묻는 질문 */
.doc-list { list-style: none; padding: 0; }
.doc-list li { border-bottom: 1px solid var(--line); padding: 14px 0; margin: 0; }
.doc-list a { font-size: 17px; font-weight: 600; }
.doc-list p { margin: 4px 0 0; color: var(--text-sub); }
.faq dt { font-weight: 600; font-size: 17px; margin-top: 26px; }
.faq dd { margin: 6px 0 0; color: var(--text-sub); }

/* 바닥글 */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-alt); padding: 26px 0 34px; font-size: 13.5px; color: var(--muted); }
.site-footer p { margin: 0 0 6px; }
.site-footer a { color: var(--text-sub); }

/* 좁은 화면 */
@media (max-width: 900px) {
	.hero-row, .feature, .updates-row { grid-template-columns: 1fr; gap: 28px; }
	.feature:nth-child(even) .feature-copy { order: 0; }
	.version-nav { position: static; }
	.version-nav ul { display: flex; flex-wrap: wrap; gap: 4px 14px; }
}
@media (max-width: 640px) {
	.header-row { flex-wrap: wrap; gap: 10px 18px; padding: 8px 0; }
	.site-nav { order: 3; flex-basis: 100%; gap: 16px; overflow-x: auto; }
	.hero { padding: 36px 0 32px; }
	.hero h1 { font-size: 30px; }
	.feature { padding: 36px 0; }
	.feature h2 { font-size: 22px; }
	.page h1 { font-size: 28px; }
	.facts { grid-template-columns: 1fr; gap: 2px; }
	.facts dd { margin-bottom: 8px; }
}