/* ============================================================
   사회복지사 2급 길잡이 — Design System
   Tokens, components, single/archive/page styling
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --c-primary:#1B4F8A;
  --c-primary-600:#25609f;
  --c-primary-700:#16385f;
  --c-primary-800:#122e50;
  --c-secondary:#0E7C7B;
  --c-accent:#F2B705;
  --c-accent-soft:#FDF3D7;
  --c-ink:#1E2735;
  --c-ink-soft:#3E4A5B;
  --c-muted:#5E6B7E;
  --c-bg:#FFFFFF;
  --c-bg-soft:#F4F7FB;
  --c-bg-ivory:#F7F5EF;
  --c-line:#E2E8F2;
  --c-warm:#3F4652;
  --c-danger:#C0392B;
  --c-blue-tint:#DCE8F5;
  --c-teal-tint:#E0F0EF;

  --radius-sm:8px;
  --radius-md:14px;
  --radius-lg:22px;
  --radius-xl:32px;
  --radius-full:999px;

  --shadow-sm:0 1px 2px rgba(23,42,71,.06),0 2px 8px rgba(23,42,71,.06);
  --shadow-md:0 10px 30px rgba(23,42,71,.10);
  --shadow-lg:0 24px 60px rgba(23,42,71,.16);

  --font-body:'Pretendard Variable','Pretendard',-apple-system,'Apple SD Gothic Neo','Malgun Gothic','Noto Sans KR',sans-serif;
  --font-display:'Noto Serif KR','Noto Serif',Georgia,'Times New Roman',serif;

  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:40px;
  --sp-6:48px; --sp-8:64px; --sp-10:80px; --sp-12:96px; --sp-14:112px;

  --container:1180px;
  --content-max:760px;

  --transition-fast:150ms ease;
  --transition-med:260ms cubic-bezier(.22,.61,.36,1);
}

/* ---------- Base ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--c-primary-600)}
h1,h2,h3,h4{line-height:1.35;margin:0 0 .5em;font-weight:800;letter-spacing:-.02em;color:var(--c-ink)}
p{margin:0 0 1em}
:focus-visible{outline:3px solid rgba(27,79,138,.45);outline-offset:2px;border-radius:4px}

.skip-link{
  position:absolute;left:-999px;top:0;z-index:2000;
  background:var(--c-primary);color:#fff;padding:12px 20px;border-radius:0 0 12px 0;
}
.skip-link:focus{left:0;color:#fff}

.container{max-width:var(--container);margin:0 auto;padding:0 var(--sp-3)}
.container-wide{max-width:1320px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:var(--radius-full);
  font-weight:700;font-size:15px;letter-spacing:-.01em;
  transition:transform var(--transition-fast),box-shadow var(--transition-fast),background var(--transition-fast);
  cursor:pointer;border:1px solid transparent;text-align:center;white-space:nowrap;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 8px 20px rgba(27,79,138,.28)}
.btn-primary:hover{background:var(--c-primary-600);color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(27,79,138,.34)}
.btn-secondary{background:var(--c-secondary);color:#fff;box-shadow:0 8px 20px rgba(14,124,123,.25)}
.btn-secondary:hover{background:#0b6a69;color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:#C9D8EA}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-bg-soft);color:var(--c-primary)}
.btn-accent{background:var(--c-accent);color:#33302A;box-shadow:0 8px 20px rgba(242,183,5,.3)}
.btn-accent:hover{background:#e6ad00;color:#26241f;transform:translateY(-2px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--c-line);
}
.site-header .header-inner{
  display:flex;align-items:center;gap:var(--sp-3);
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:40px;height:40px;border-radius:11px;overflow:hidden;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,var(--c-primary),var(--c-primary-800));
  box-shadow:0 4px 12px rgba(27,79,138,.3);
}
.brand-mark img{width:100%;height:100%;object-fit:cover}
.brand-name{font-weight:800;font-size:17px;letter-spacing:-.02em;color:var(--c-ink);line-height:1.2}
.brand-name small{display:block;font-size:11px;font-weight:600;color:var(--c-muted);letter-spacing:.02em}

.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  display:inline-flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:var(--radius-sm);font-size:14.5px;font-weight:600;color:var(--c-ink-soft);
}
.main-nav a:hover{background:var(--c-bg-soft);color:var(--c-primary)}
.main-nav a.btn{border-radius:var(--radius-full);min-height:40px;padding:0 18px}
.header-cta{margin-left:8px}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;flex-shrink:0;
  background:transparent;border:1px solid var(--c-line);border-radius:10px;
  cursor:pointer;position:relative;
}
.nav-toggle span{position:absolute;left:11px;right:11px;height:2px;background:var(--c-ink);border-radius:2px;transition:all .22s ease}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,#0F2A4A 0%,#1B4F8A 55%,#25609f 100%);
  color:#fff;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(1200px 500px at 85% -10%,rgba(242,183,5,.16),transparent 60%),
             radial-gradient(900px 420px at 8% 110%,rgba(14,124,123,.35),transparent 55%);
  pointer-events:none;
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.05fr .95fr;gap:var(--sp-8);
  align-items:center;
  padding:var(--sp-12) 0 var(--sp-10);
}
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  color:#EAF2FB;font-size:13px;font-weight:700;
  padding:7px 16px;border-radius:var(--radius-full);margin-bottom:22px;
}
.hero .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-accent)}
.hero h1{
  font-family:var(--font-display);
  font-size:clamp(36px,5vw,60px);
  font-weight:800;line-height:1.22;letter-spacing:-.03em;
  color:#fff;margin-bottom:22px;
}
.hero .lead{font-size:clamp(16px,1.6vw,19px);line-height:1.8;color:#DCE7F5;max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.hero-trust{display:flex;flex-wrap:wrap;gap:10px 22px;color:#BFD2E8;font-size:13.5px;font-weight:600}
.hero-trust span{display:inline-flex;align-items:center;gap:7px}
.hero-trust svg{width:16px;height:16px;stroke:var(--c-accent)}

.hero-visual{position:relative}
.hero-photo{
  border-radius:var(--radius-xl);overflow:hidden;
  box-shadow:0 30px 70px rgba(6,18,38,.45);
  aspect-ratio:16/10;
}
.hero-photo img{width:100%;height:100%;object-fit:cover}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;color:var(--c-ink);
  border-radius:var(--radius-lg);padding:16px 20px;
  box-shadow:var(--shadow-lg);
  display:flex;align-items:center;gap:14px;
  max-width:290px;
}
.hero-float .num{font-family:var(--font-display);font-size:30px;font-weight:800;color:var(--c-primary);line-height:1}
.hero-float .txt{font-size:13px;font-weight:600;line-height:1.5;color:var(--c-ink-soft)}

/* ---------- Section shells ---------- */
.section{padding:var(--sp-10) 0}
.section-soft{background:var(--c-bg-soft)}
.section-ivory{background:var(--c-bg-ivory)}
.section-head{max-width:720px;margin-bottom:var(--sp-6)}
.section-head .kicker{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.12em;
  color:var(--c-primary);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{
  font-family:var(--font-display);
  font-size:clamp(26px,3.4vw,38px);letter-spacing:-.025em;margin-bottom:12px;
}
.section-head p{color:var(--c-muted);font-size:16.5px;margin:0}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}

/* ---------- Pillar cards (4축) ---------- */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-3)}
.pillar{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:var(--sp-4);position:relative;overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform var(--transition-med),box-shadow var(--transition-med);
}
.pillar:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.pillar .step{
  position:absolute;top:14px;right:18px;
  font-family:var(--font-display);font-size:44px;font-weight:800;
  color:var(--c-blue-tint);line-height:1;
}
.pillar .ico{
  width:48px;height:48px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
  background:var(--c-bg-soft);color:var(--c-primary);
}
.pillar h3{font-size:17px;margin-bottom:8px}
.pillar p{font-size:14px;color:var(--c-muted);line-height:1.65;margin:0}
.pillar a.pillar-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13.5px;font-weight:700;color:var(--c-primary);
}
.pillar a.pillar-link svg{width:14px;height:14px;transition:transform var(--transition-fast)}
.pillar a.pillar-link:hover svg{transform:translateX(3px)}

/* ---------- Carousel tiles ---------- */
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.tile{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);display:block;
  transition:transform var(--transition-med),box-shadow var(--transition-med);
  aspect-ratio:3/2;
}
.tile:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.tile img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.tile:hover img{transform:scale(1.05)}
.tile .tile-body{
  position:absolute;inset:0;
  display:flex;flex-direction:column;justify-content:flex-end;
  padding:22px;
  background:linear-gradient(180deg,rgba(10,20,35,.05) 30%,rgba(10,20,35,.82) 100%);
  color:#fff;
}
.tile .badge{
  align-self:flex-start;
  font-size:12px;font-weight:800;letter-spacing:.05em;
  background:var(--c-accent);color:#33302A;
  padding:5px 12px;border-radius:var(--radius-full);margin-bottom:10px;
}
.tile .badge.alt{background:rgba(255,255,255,.94);color:var(--c-primary)}
.tile h3{color:#fff;font-size:clamp(18px,1.8vw,22px);margin-bottom:6px;letter-spacing:-.02em}
.tile p{color:rgba(255,255,255,.85);font-size:13.5px;margin:0}
.tile .go{margin-top:12px;font-size:13px;font-weight:700;display:inline-flex;align-items:center;gap:6px}
.tile .go svg{width:14px;height:14px}

/* ---------- Latest posts grid ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--transition-med),box-shadow var(--transition-med);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md)}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-soft)}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .thumb img{transform:scale(1.05)}
.card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1}
.card .cat{font-size:12px;font-weight:800;color:var(--c-secondary);letter-spacing:.04em}
.card h3{font-size:17px;line-height:1.5;margin:0}
.card h3 a{color:var(--c-ink)}
.card h3 a:hover{color:var(--c-primary)}
.card .excerpt{font-size:14px;color:var(--c-muted);line-height:1.65;margin:0}
.card .meta{
  margin-top:auto;padding-top:12px;
  font-size:12.5px;color:var(--c-muted);
  display:flex;align-items:center;gap:8px;
}

/* ---------- Split feature sections ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-8);align-items:center}
.split .media{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);aspect-ratio:3/2}
.split .media img{width:100%;height:100%;object-fit:cover}
.split .media.ratio-16{aspect-ratio:16/9}
.split .copy .kicker{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--c-secondary);text-transform:uppercase}
.split .copy h2{font-family:var(--font-display);font-size:clamp(25px,3vw,34px);margin:8px 0 14px;letter-spacing:-.025em}
.split .copy p{color:var(--c-ink-soft);font-size:15.5px}
.check-list{list-style:none;margin:18px 0 0;padding:0;display:grid;gap:10px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;font-weight:600;color:var(--c-ink);
}
.check-list li svg{width:20px;height:20px;flex-shrink:0;margin-top:2px}

/* ---------- Checklist / compare band ---------- */
.compare-band{
  border-radius:var(--radius-xl);overflow:hidden;
  background:linear-gradient(150deg,var(--c-primary-800),var(--c-primary));
  color:#fff;padding:var(--sp-8);
}
.compare-band h2{color:#fff;font-family:var(--font-display);font-size:clamp(24px,3vw,32px)}
.compare-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3);margin-top:var(--sp-4)}
.compare-col{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);padding:22px}
.compare-col .num{font-family:var(--font-display);font-size:26px;font-weight:800;color:var(--c-accent)}
.compare-col h3{color:#fff;font-size:16px;margin:8px 0 8px}
.compare-col p{color:#D3E0F0;font-size:13.5px;margin:0;line-height:1.7}

/* ---------- CTA band ---------- */
.cta-band{
  border-radius:var(--radius-xl);
  background:linear-gradient(140deg,#0E7C7B,#0A5F5E);
  color:#fff;text-align:center;padding:var(--sp-8) var(--sp-4);
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 300px at 90% 0%,rgba(242,183,5,.22),transparent 55%);
}
.cta-band h2{color:#fff;font-family:var(--font-display);font-size:clamp(24px,3vw,32px)}
.cta-band p{color:#D9F0EF;max-width:640px;margin:0 auto 24px}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-primary-800);color:#C7D6E8;font-size:14px}
.footer-top{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:var(--sp-6);
  padding:var(--sp-8) 0 var(--sp-6);
}
.footer-brand .brand-name{color:#fff}
.footer-brand p{color:#9FB4CE;font-size:13.5px;line-height:1.75;max-width:300px;margin-top:14px}
.footer-col h3{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-col a{color:#B7C9DF;font-size:13.5px}
.footer-col a:hover{color:var(--c-accent)}
.footer-legal{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:#8FA6C2;
}
.footer-legal .notice{flex-basis:100%;color:#A7BBD4;line-height:1.7}
.footer-legal .ai-notice-footer{color:var(--c-accent);font-weight:700}

/* ---------- Article / single ---------- */
.article-header{background:var(--c-bg-soft);padding:var(--sp-8) 0 var(--sp-6);border-bottom:1px solid var(--c-line)}
.breadcrumb{font-size:13px;color:var(--c-muted);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--c-muted);font-weight:600}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B9C4D4}
.article-header h1{
  font-family:var(--font-display);
  font-size:clamp(28px,4vw,42px);letter-spacing:-.03em;line-height:1.3;
  max-width:820px;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin-top:18px;
  font-size:13.5px;color:var(--c-muted);font-weight:600;
}
.article-meta .chip{
  background:var(--c-blue-tint);color:var(--c-primary);
  padding:4px 12px;border-radius:var(--radius-full);font-size:12.5px;font-weight:800;
}
.article-thumb{margin:var(--sp-4) auto 0;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);max-width:960px}
.article-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover}

.article-wrap{max-width:var(--content-max);margin:0 auto;padding:var(--sp-8) 0 var(--sp-10)}
.entry-content{font-size:16.5px;line-height:1.85;color:var(--c-ink-soft)}
.entry-content h2{
  font-family:var(--font-display);
  font-size:clamp(22px,2.6vw,28px);
  color:var(--c-primary);letter-spacing:-.02em;
  margin:2.4em 0 .8em;padding-top:.4em;scroll-margin-top:100px;
}
.entry-content h2::before{
  content:"";display:block;width:34px;height:4px;border-radius:4px;
  background:var(--c-accent);margin-bottom:14px;
}
.entry-content h3{font-size:19px;color:var(--c-ink);margin:2em 0 .6em}
.entry-content p{margin-bottom:1.15em}
.entry-content strong{color:var(--c-ink);font-weight:700}
.entry-content a{text-decoration:underline;text-underline-offset:3px;text-decoration-color:#B9CDE6;font-weight:600}
.entry-content ul,.entry-content ol{padding-left:0;margin:0 0 1.4em;display:grid;gap:8px}
.entry-content ul{list-style:none}
.entry-content ul li{position:relative;padding-left:26px}
.entry-content ul li::before{
  content:"";position:absolute;left:2px;top:.62em;
  width:9px;height:9px;border-radius:3px;
  background:linear-gradient(135deg,var(--c-primary),var(--c-secondary));
}
.entry-content ol{counter-reset:step;list-style:none}
.entry-content ol li{
  position:relative;padding-left:40px;counter-increment:step;
  min-height:30px;
}
.entry-content ol li::before{
  content:counter(step);
  position:absolute;left:0;top:.2em;
  width:26px;height:26px;border-radius:50%;
  background:var(--c-primary);color:#fff;
  font-size:13px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.entry-content blockquote{
  margin:1.6em 0;padding:20px 24px;
  background:var(--c-bg-ivory);
  border-left:4px solid var(--c-accent);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:var(--c-ink-soft);font-size:15px;line-height:1.8;
}
.entry-content blockquote strong{color:var(--c-ink)}

/* lead paragraph */
.entry-content .lead{font-size:18px;line-height:1.85;color:var(--c-ink);font-weight:500}
/* key summary callout */
.callout{
  border-radius:var(--radius-md);
  background:var(--c-bg-soft);
  border:1px solid var(--c-line);
  padding:20px 24px;margin:1.6em 0;
}
.callout.warn{background:#FDF2F2;border-color:#F2C6C1}
.callout .callout-title{
  display:flex;align-items:center;gap:8px;
  font-weight:800;color:var(--c-primary);font-size:15px;margin-bottom:8px;
}
.callout.warn .callout-title{color:var(--c-danger)}
.callout p{font-size:14.5px;margin:0 0 8px;line-height:1.75}
.callout p:last-child{margin:0}
.callout ul,.callout ol{margin-top:8px}

/* tables */
.table-wrap{overflow-x:auto;margin:1.6em 0;border-radius:var(--radius-md);box-shadow:var(--shadow-sm)}
.entry-content table{
  width:100%;border-collapse:collapse;font-size:14.5px;min-width:560px;
  background:#fff;overflow:hidden;
}
.entry-content thead th{
  background:var(--c-primary);color:#fff;text-align:left;
  padding:13px 16px;font-weight:700;font-size:14px;white-space:nowrap;
}
.entry-content tbody td{
  padding:13px 16px;border-bottom:1px solid var(--c-line);
  color:var(--c-ink-soft);vertical-align:top;line-height:1.65;
}
.entry-content tbody tr:nth-child(even){background:var(--c-bg-soft)}
.entry-content tbody tr:hover{background:var(--c-bg-ivory)}
.entry-content tbody td strong{color:var(--c-ink)}

/* inline charts */
.chart{margin:1.8em 0;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);padding:22px 22px 14px;box-shadow:var(--shadow-sm)}
.chart-title{font-size:14px;font-weight:800;color:var(--c-ink);margin-bottom:16px;display:flex;align-items:center;gap:8px}
.chart-title svg{width:16px;height:16px;color:var(--c-primary)}
.bar-row{display:grid;grid-template-columns:110px 1fr 64px;gap:12px;align-items:center;margin-bottom:14px}
.bar-label{font-size:13px;font-weight:700;color:var(--c-ink-soft);line-height:1.3}
.bar-track{height:14px;background:var(--c-bg-soft);border-radius:var(--radius-full);overflow:hidden}
.bar-fill{
  height:100%;width:0;border-radius:var(--radius-full);
  background:linear-gradient(90deg,var(--c-primary),var(--c-secondary));
  transition:width .9s cubic-bezier(.22,.61,.36,1);
}
.bar-fill.alt{background:linear-gradient(90deg,#F2B705,#F5C63A)}
.bar-val{font-size:12.5px;font-weight:800;color:var(--c-primary);text-align:right}
.chart-note{font-size:12px;color:var(--c-muted);margin:6px 0 0;line-height:1.6}

/* timeline */
.timeline{list-style:none;margin:1.8em 0;padding:0;position:relative;display:grid;gap:0}
.timeline::before{
  content:"";position:absolute;left:15px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-secondary),var(--c-accent));
  border-radius:2px;
}
.timeline li{position:relative;padding:0 0 22px 46px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";position:absolute;left:8px;top:6px;
  width:16px;height:16px;border-radius:50%;
  background:#fff;border:4px solid var(--c-primary);
  box-shadow:0 0 0 3px rgba(27,79,138,.15);
}
.timeline .t-step{font-size:12.5px;font-weight:800;color:var(--c-secondary);letter-spacing:.05em}
.timeline .t-title{font-size:15px;font-weight:800;color:var(--c-ink);margin:2px 0 4px}
.timeline .t-desc{font-size:13.5px;color:var(--c-muted);line-height:1.65}

/* steps diagram (horizontal) */
.steps-diagram{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:1.8em 0;
}
.steps-diagram .sd-step{
  background:var(--c-bg-soft);border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:16px;position:relative;
}
.steps-diagram .sd-step::after{
  content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);
  color:var(--c-primary);font-weight:800;font-size:16px;z-index:2;
}
.steps-diagram .sd-step:last-child::after{display:none}
.steps-diagram .sd-num{
  width:26px;height:26px;border-radius:8px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:800;margin-bottom:10px;
}
.steps-diagram .sd-title{font-size:13.5px;font-weight:800;color:var(--c-ink);line-height:1.4}

/* stat cards */
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:1.8em 0}
.stat-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:20px;text-align:center;box-shadow:var(--shadow-sm);
}
.stat-card .stat-num{
  font-family:var(--font-display);font-size:30px;font-weight:800;
  color:var(--c-primary);line-height:1.1;
}
.stat-card .stat-cap{font-size:12.5px;font-weight:700;color:var(--c-muted);margin-top:6px}

/* AI notice & legal */
.ai-notice,.affiliate-notice{
  font-size:12.5px;color:#5E6B7E;margin-top:2.6em;padding-top:18px;
  border-top:1px dashed var(--c-line);line-height:1.7;
}
.legal-notice{
  font-size:12.5px;color:#5E6B7E;margin-top:14px;line-height:1.7;
  background:var(--c-bg-soft);border-radius:var(--radius-sm);padding:12px 16px;
}

/* related posts */
.related{margin-top:var(--sp-8);padding-top:var(--sp-6);border-top:1px solid var(--c-line)}
.related h2{font-family:var(--font-display);font-size:24px;color:var(--c-ink);margin-bottom:var(--sp-3)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-3)}
.related-card{
  display:block;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform var(--transition-med),box-shadow var(--transition-med);
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.related-card .r-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--c-bg-soft)}
.related-card .r-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.related-card:hover .r-thumb img{transform:scale(1.05)}
.related-card .r-body{padding:14px 16px}
.related-card .r-title{font-size:14.5px;font-weight:800;color:var(--c-ink);line-height:1.5}
.related-card .r-cat{font-size:11.5px;font-weight:800;color:var(--c-secondary);letter-spacing:.04em;margin-bottom:6px}

/* TOC */
.toc{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:20px 24px;margin:1.8em 0;box-shadow:var(--shadow-sm);
}
.toc-title{font-weight:800;font-size:15px;color:var(--c-ink);margin-bottom:10px;display:flex;align-items:center;gap:8px}
.toc ol{list-style:none;margin:0;padding:0;display:grid;gap:6px;counter-reset:toc}
.toc li{counter-increment:toc;padding-left:0}
.toc li::before{content:counter(toc,decimal-leading-zero) ".";font-weight:800;color:var(--c-primary);margin-right:8px}
.toc a{font-size:14px;font-weight:600;color:var(--c-ink-soft);text-decoration:none}
.toc a:hover{color:var(--c-primary)}

/* ---------- Page (privacy/terms) ---------- */
.page-simple .article-header h1{max-width:820px}
.page-simple .entry-content h2{margin-top:2em}

/* ---------- Archive ---------- */
.archive-head{padding:var(--sp-8) 0 var(--sp-4);background:var(--c-bg-soft);border-bottom:1px solid var(--c-line)}
.archive-head h1{font-family:var(--font-display);font-size:clamp(28px,4vw,40px)}
.archive-list{padding:var(--sp-6) 0 var(--sp-10)}

/* ---------- 404 ---------- */
.error-404{padding:var(--sp-14) 0;text-align:center}
.error-404 h1{font-family:var(--font-display);font-size:clamp(28px,4vw,42px)}
.error-404 .code{font-family:var(--font-display);font-size:96px;font-weight:800;color:var(--c-blue-tint);line-height:1}

/* ---------- Scroll reveal ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s cubic-bezier(.22,.61,.36,1)}
.reveal.in-view{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .pillars{grid-template-columns:repeat(2,1fr)}
  .post-grid,.tiles,.related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr}
  .hero-grid{grid-template-columns:1fr;gap:var(--sp-6);padding:var(--sp-8) 0 var(--sp-8)}
  .hero-float{left:8px}
  .compare-cols{grid-template-columns:1fr}
}
@media (max-width:760px){
  .section{padding:var(--sp-8) 0}
  .main-nav{
    position:absolute;top:calc(100% + 10px);left:12px;right:12px;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#fff;padding:16px;border:1px solid var(--c-line);
    border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    overflow-y:auto;max-height:calc(100vh - 100px);
    z-index:99;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:none}
  .main-nav a{font-size:16px;padding:14px 16px;border-radius:12px;border-bottom:1px solid var(--c-bg-soft)}
  .header-cta{margin:12px 0 0}
  .nav-toggle{display:block}
  .pillars{grid-template-columns:1fr}
  .post-grid,.tiles,.related-grid{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .split .media{order:-1}
  .footer-top{grid-template-columns:1fr;gap:var(--sp-4)}
  .steps-diagram{grid-template-columns:1fr 1fr}
  .steps-diagram .sd-step::after{display:none}
  .stat-grid{grid-template-columns:repeat(3,1fr)}
  .stat-card{padding:14px 8px}
  .stat-card .stat-num{font-size:22px}
  .hero-actions .btn{flex:1 1 100%;justify-content:center}
  .bar-row{grid-template-columns:86px 1fr 52px;gap:8px}
  .article-wrap{padding:var(--sp-6) 0 var(--sp-8)}
  .footer-legal{justify-content:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
  .tile img,.card .thumb img,.related-card .r-thumb img{transition:none}
}