/* 색·간격 토큰. 라이트/다크는 시스템 설정을 따른다 */
:root{
  --bg:#f6f7f9;--surface:#fff;--surface2:#eef1f5;--fg:#16191f;--mute:#566070;--line:#dfe3ea;
  --brand:#1b5fd1;--brand-fg:#fff;--brand-soft:#e6eefc;--focus:#1b5fd1;
  --hero1:#143a8c;--hero2:#2a7de1;--hero-fg:#fff;
  --r:14px;--shadow:0 1px 2px rgba(16,24,40,.06),0 4px 14px rgba(16,24,40,.06);
  --font:-apple-system,BlinkMacSystemFont,"Apple SD Gothic Neo","Malgun Gothic","Noto Sans KR",system-ui,sans-serif;
}
@media(prefers-color-scheme:dark){:root{
  --bg:#0f1115;--surface:#181b21;--surface2:#21252d;--fg:#eceff4;--mute:#a1a9b8;--line:#2b303a;
  --brand:#6ea3ff;--brand-fg:#0b1220;--brand-soft:#1b2540;--focus:#8db6ff;
  --hero1:#0d2255;--hero2:#1d56a8;--shadow:none}}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--bg);color:var(--fg);font:16px/1.65 var(--font);-webkit-text-size-adjust:100%}
a{color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.wrap{max-width:1040px;margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 12px;border-radius:8px;z-index:20}
.skip:focus{left:8px}

/* 헤더 */
header.site{position:sticky;top:0;z-index:10;background:color-mix(in srgb,var(--surface) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:60px}
.brand{font-weight:800;font-size:1.1rem;text-decoration:none;letter-spacing:-.02em}
nav.main{display:flex;gap:2px;flex-wrap:wrap}
nav.main a{padding:8px 12px;border-radius:10px;text-decoration:none;color:var(--mute);font-weight:600;font-size:.95rem}
nav.main a:hover{background:var(--surface2);color:var(--fg)}
nav.main a[aria-current=page]{color:var(--brand)}
@media(max-width:560px){header.site .wrap{flex-wrap:wrap;padding-top:8px;padding-bottom:8px}nav.main{width:100%;justify-content:space-between}nav.main a{padding:8px 8px;font-size:.9rem}}

/* 히어로 */
.hero{background:linear-gradient(135deg,var(--hero1),var(--hero2));color:var(--hero-fg);padding:64px 0 56px}
.hero h1{font-size:clamp(1.9rem,6vw,3rem);line-height:1.2;margin:0 0 14px;letter-spacing:-.03em;font-weight:800}
.hero p{margin:0 0 28px;font-size:1.1rem;max-width:560px;opacity:.92}
.btns{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:12px;font-weight:700;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700}
.btn.primary{background:#fff;color:#12327a}
.btn.ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn:hover{transform:translateY(-1px)}
.btn.solid{background:var(--brand);color:var(--brand-fg)}
.btn.outline{border-color:var(--line);background:var(--surface);color:var(--fg)}

/* 숫자 띠 */
.stats{margin-top:-28px;position:relative}
.stats .row{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.stat{background:var(--surface);padding:18px 14px;text-align:center}
.stat b{display:block;font-size:1.7rem;line-height:1.2;letter-spacing:-.02em}
.stat span{color:var(--mute);font-size:.88rem}

/* 섹션 */
section.block{padding:56px 0 8px}
.sec-head{margin-bottom:22px}
.sec-head h2{font-size:1.5rem;margin:0 0 6px;letter-spacing:-.02em}
.sec-head p{margin:0;color:var(--mute)}

/* 블로그 카드 */
.blogs{display:grid;gap:16px;grid-template-columns:1fr}
@media(min-width:700px){.blogs{grid-template-columns:1fr 1fr}}
.bcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:flex;flex-direction:column;gap:10px;box-shadow:var(--shadow);border-top:4px solid var(--c,var(--brand))}
.bcard h3{margin:0;font-size:1.15rem}
.bcard .pf{font-size:.8rem;color:var(--mute);font-weight:600}
.bcard p{margin:0;color:var(--mute)}
.bcard .facts{font-size:.85rem;color:var(--mute)}
.bcard .btn{align-self:flex-start;min-height:42px;margin-top:auto}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{background:var(--brand-soft);color:var(--brand);padding:2px 10px;border-radius:999px;font-size:.8rem;font-weight:600}

/* 도구줄 */
.tools{display:flex;flex-direction:column;gap:10px;margin-bottom:18px}
#q{width:100%;min-height:48px;padding:0 16px;font:inherit;border:1px solid var(--line);border-radius:12px;background:var(--surface);color:var(--fg)}
.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.chip{flex:none;min-height:38px;border:1px solid var(--line);background:var(--surface);color:var(--fg);border-radius:999px;padding:0 15px;font:inherit;font-size:.9rem;font-weight:600;cursor:pointer}
.chip:hover{background:var(--surface2)}
.chip[aria-pressed=true]{background:var(--brand);color:var(--brand-fg);border-color:var(--brand)}
.meta{color:var(--mute);font-size:.88rem;margin:0 0 12px}

/* 글 카드 */
.grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}
@media(min-width:960px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;box-shadow:var(--shadow);transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:var(--brand)}
.thumb{aspect-ratio:16/9;background:linear-gradient(135deg,var(--surface2),var(--line)) center/cover no-repeat}
.card .body{padding:14px 16px 16px;display:flex;flex-direction:column;gap:8px;flex:1}
.row2{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.badge{color:#fff;font-size:.74rem;font-weight:700;padding:3px 10px;border-radius:999px}
.card h3{font-size:1.04rem;line-height:1.4;margin:0}
.card p{margin:0;color:var(--mute);font-size:.9rem;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card time{color:var(--mute);font-size:.8rem;margin-top:auto}
.empty{grid-column:1/-1;padding:40px 0;text-align:center;color:var(--mute)}
.more{text-align:center;margin:26px 0 0}

/* 운영 원칙 */
.principles{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:700px){.principles{grid-template-columns:repeat(2,1fr)}}
.pr{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.pr b{display:block;margin-bottom:4px}
.pr span{color:var(--mute);font-size:.93rem}

/* 일반 페이지 */
main.page{padding:40px 0 20px;max-width:760px}
main.page h1{font-size:1.9rem;letter-spacing:-.02em;margin:0 0 12px}
main.page h2{font-size:1.2rem;margin:28px 0 6px}
main.page p,main.page li{color:var(--fg)}
.tbd{background:#fff3bf;color:#5f3b00;padding:1px 6px;border-radius:4px}

/* 푸터 */
footer.site{margin-top:64px;border-top:1px solid var(--line);background:var(--surface);padding:32px 0 40px;color:var(--mute);font-size:.9rem}
footer.site .cols{display:grid;gap:20px;grid-template-columns:1fr}
@media(min-width:700px){footer.site .cols{grid-template-columns:2fr 1fr 1fr}}
footer.site h4{margin:0 0 8px;color:var(--fg);font-size:.95rem}
footer.site a{display:block;text-decoration:none;padding:3px 0}
footer.site a:hover{color:var(--brand);text-decoration:underline}
footer.site .copy{margin-top:24px;padding-top:16px;border-top:1px solid var(--line);font-size:.82rem}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* ===== 히어로 캐러셀 ===== */
.hero{padding:0;position:relative;overflow:hidden;background:#143a8c}
.slides{position:relative}
.slide{display:none;padding:84px 0 96px;color:#fff;background:var(--sg)}
.slide.on{display:block;animation:fade .5s}
@keyframes fade{from{opacity:0}to{opacity:1}}
.slide .wrap{max-width:1040px}
.slide .kicker{display:inline-block;font-size:.85rem;font-weight:700;letter-spacing:.04em;padding:4px 12px;border-radius:999px;background:rgba(255,255,255,.18);margin-bottom:16px}
.slide h1,.slide h2.big{font-size:clamp(2rem,6.4vw,3.4rem);line-height:1.2;margin:0 0 16px;letter-spacing:-.03em;font-weight:800;max-width:780px}
.slide p{margin:0 0 30px;font-size:1.12rem;max-width:600px;opacity:.94}
.hero-ctrl{position:absolute;left:0;right:0;bottom:22px;display:flex;align-items:center;gap:10px}
.cbtn{width:40px;height:40px;border-radius:50%;border:1px solid rgba(255,255,255,.6);background:rgba(0,0,0,.25);color:#fff;font-size:1.1rem;cursor:pointer;line-height:1}
.cbtn:hover{background:rgba(0,0,0,.45)}
.cbtn:focus-visible{outline-color:#fff}
#pauseBtn{font-size:.65rem;margin-left:auto}
.dots{display:flex;gap:8px}
.dot{width:12px;height:12px;border-radius:50%;border:2px solid #fff;background:transparent;padding:0;cursor:pointer}
.dot[aria-selected=true]{background:#fff}
.dot:focus-visible{outline-color:#fff;outline-offset:3px}

/* ===== 퀵메뉴 ===== */
.quick{background:var(--surface);border-bottom:1px solid var(--line)}
.qrow{display:flex;gap:6px;overflow-x:auto;padding:18px 0;scrollbar-width:thin}
.q{flex:none;width:92px;display:flex;flex-direction:column;align-items:center;gap:8px;text-decoration:none;font-size:.82rem;font-weight:600;text-align:center;padding:6px 4px;border-radius:12px;background:none;border:0;color:var(--fg);font-family:inherit;cursor:pointer;line-height:1.3}
.q:hover{background:var(--surface2)}
.qi{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;background:var(--qc,var(--brand));color:#fff}
.qi svg{width:26px;height:26px}
.qsep{flex:none;width:1px;background:var(--line);margin:8px 10px}

/* ===== 헤더 드롭다운 ===== */
.has-menu{position:relative}
.menu-btn{padding:8px 12px;border-radius:10px;color:var(--mute);font:inherit;font-weight:600;font-size:.95rem;background:none;border:0;cursor:pointer}
.menu-btn:hover,.menu-btn[aria-expanded=true]{background:var(--surface2);color:var(--fg)}
.menu-btn::after{content:"▾";margin-left:5px;font-size:.7rem}
.dropdown{display:none;position:absolute;top:calc(100% + 8px);left:0;min-width:270px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:0 10px 30px rgba(16,24,40,.18);padding:8px;z-index:30}
.dropdown.open{display:block}
.dropdown a{display:flex!important;align-items:center;gap:10px;padding:10px 12px!important;border-radius:10px}
.dropdown a small{display:block;color:var(--mute);font-weight:400;font-size:.78rem}
.dropdown i{flex:none;width:10px;height:10px;border-radius:50%;background:var(--c)}
@media(max-width:560px){.has-menu{position:static}.dropdown{left:12px;right:12px;min-width:0}}
@media(min-width:900px){section.block{padding-top:72px}.sec-head h2{font-size:1.8rem}.card h3{font-size:1.1rem}}
@media(prefers-reduced-motion:reduce){.slide.on{animation:none}}
.stats{margin-top:28px}