/*
Theme Name: Learnbot Agent
Theme URI: https://learnbot.rand3.com/
Description: 에이전트 AI 실무 가이드 전용 커스텀 테마. 밝은 화이트 베이스 + 딥 인디고(#2A3AA8)·시안(#12B6C9) 액센트의 디자인 시스템(8pt 스케일, 카드·버튼·테이블·차트 토큰)을 모든 페이지·글·고정페이지에 통일 적용합니다.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.8
Requires PHP: 7.4
License: GNU General Public License v2 or later
Text Domain: learnbot-agent
*/

/* ============ 디자인 토큰 ============ */
:root{
  --lb-indigo:#2A3AA8; --lb-indigo-deep:#1F2C85; --lb-indigo-soft:#EBEEFB;
  --lb-cyan:#12B6C9; --lb-cyan-deep:#0E93A4; --lb-cyan-soft:#E4F7FA;
  --lb-amber:#F2A73B; --lb-mint:#34C3A0;
  --lb-ink:#1B2333; --lb-gray:#5B6472; --lb-gray-light:#9AA3B2; --lb-gray-soft:#F3F5F9;
  --lb-bg:#F7F9FC; --lb-card:#FFFFFF; --lb-border:#E6EAF2;
  --lb-radius-sm:10px; --lb-radius-md:14px; --lb-radius-lg:20px; --lb-radius-full:999px;
  --lb-shadow-sm:0 2px 10px rgba(27,35,51,.06);
  --lb-shadow-md:0 10px 28px rgba(27,35,51,.08);
  --lb-shadow-lg:0 24px 60px rgba(27,35,51,.12);
  --lb-space-1:4px; --lb-space-2:8px; --lb-space-3:12px; --lb-space-4:16px;
  --lb-space-5:24px; --lb-space-6:32px; --lb-space-7:40px; --lb-space-8:48px;
  --lb-space-9:64px; --lb-space-10:80px; --lb-space-11:96px; --lb-space-12:120px; --lb-space-13:140px;
  --lb-font:'Pretendard Variable','Pretendard','Noto Sans KR','Apple SD Gothic Neo','Malgun Gothic',sans-serif;
  --lb-font-serif:'Noto Serif KR','Nanum Myeongjo',serif;
  --lb-transition:180ms cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important;}}
body{margin:0;font-family:var(--lb-font);background:var(--lb-bg);color:var(--lb-ink);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;}
a{color:var(--lb-indigo);text-decoration:none;transition:color var(--lb-transition);}
a:hover{color:var(--lb-cyan-deep);}
:focus-visible{outline:3px solid var(--lb-cyan);outline-offset:2px;border-radius:4px;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--lb-indigo);color:#fff;padding:12px 20px;z-index:999;border-radius:0 0 12px 0;}
.skip-link:focus{left:0;color:#fff;}

/* ============ 헤더 ============ */
.lb-header{position:sticky;top:0;z-index:200;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--lb-border);}
.lb-header-inner{max-width:1200px;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;}
.lb-brand{display:flex;align-items:center;gap:12px;min-width:0;}
.lb-brand img{height:38px;width:auto;display:block;}
.lb-brand-text{font-weight:800;font-size:1.05rem;letter-spacing:-.02em;color:var(--lb-ink);white-space:nowrap;}
.lb-nav{display:flex;align-items:center;gap:6px;}
.lb-nav ul{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;}
.lb-nav a{display:inline-block;padding:10px 16px;border-radius:var(--lb-radius-full);color:var(--lb-gray);font-weight:600;font-size:.95rem;transition:all var(--lb-transition);}
.lb-nav a:hover{color:var(--lb-indigo);background:var(--lb-indigo-soft);}
.lb-nav .current-menu-item>a,.lb-nav .current-cat>a{color:var(--lb-indigo);background:var(--lb-indigo-soft);}
.lb-nav .lb-cta-link a{background:var(--lb-indigo);color:#fff;padding:10px 22px;box-shadow:0 6px 16px rgba(42,58,168,.22);}
.lb-nav .lb-cta-link a:hover{background:var(--lb-indigo-deep);color:#fff;}
.lb-nav-toggle{display:none;background:none;border:0;width:46px;height:46px;border-radius:12px;cursor:pointer;position:relative;}
.lb-nav-toggle span{position:absolute;left:12px;right:12px;height:2px;background:var(--lb-ink);border-radius:2px;transition:all var(--lb-transition);}
.lb-nav-toggle span:nth-child(1){top:16px;} .lb-nav-toggle span:nth-child(2){top:22px;} .lb-nav-toggle span:nth-child(3){top:28px;}
.lb-header.is-open .lb-nav-toggle span:nth-child(1){top:22px;transform:rotate(45deg);}
.lb-header.is-open .lb-nav-toggle span:nth-child(2){opacity:0;}
.lb-header.is-open .lb-nav-toggle span:nth-child(3){top:22px;transform:rotate(-45deg);}
@media (max-width:900px){
  .lb-nav-toggle{display:block;}
  .lb-nav{position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--lb-border);box-shadow:var(--lb-shadow-md);display:none;padding:12px 20px 20px;}
  .lb-header.is-open .lb-nav{display:block;}
  .lb-nav ul{flex-direction:column;align-items:stretch;gap:2px;}
  .lb-nav a{display:block;padding:14px 16px;border-radius:12px;}
}

/* ============ 히어로/공통 레이아웃 ============ */
.lb-container{max-width:1200px;margin:0 auto;padding:0 24px;}
.lb-page-hero{background:linear-gradient(180deg,var(--lb-indigo-soft) 0%,var(--lb-bg) 100%);padding:88px 0 72px;}
.lb-page-hero h1{margin:0 0 12px;font-size:clamp(1.9rem,4vw,3rem);font-weight:800;letter-spacing:-.03em;line-height:1.25;}
.lb-page-hero .lb-lead{margin:0;color:var(--lb-gray);font-size:clamp(1rem,2vw,1.2rem);max-width:720px;}
.lb-section{padding:88px 0;}
@media (max-width:720px){.lb-section{padding:64px 0;}.lb-page-hero{padding:64px 0 52px;}}
.lb-section-head{max-width:760px;margin:0 auto 44px;text-align:center;}
.lb-eyebrow{display:inline-block;font-size:.82rem;font-weight:700;letter-spacing:.06em;color:var(--lb-cyan-deep);background:var(--lb-cyan-soft);border-radius:var(--lb-radius-full);padding:6px 14px;margin-bottom:16px;}
.lb-section-head h2{margin:0 0 12px;font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;letter-spacing:-.025em;line-height:1.3;}
.lb-section-head p{margin:0;color:var(--lb-gray);font-size:1.02rem;}

/* ============ 버튼 ============ */
.lb-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 26px;border-radius:var(--lb-radius-full);font-weight:700;font-size:.98rem;border:0;cursor:pointer;transition:all var(--lb-transition);text-decoration:none;}
.lb-btn-primary{background:var(--lb-indigo);color:#fff;box-shadow:0 8px 20px rgba(42,58,168,.24);}
.lb-btn-primary:hover{background:var(--lb-indigo-deep);color:#fff;transform:translateY(-1px);}
.lb-btn-ghost{background:#fff;color:var(--lb-indigo);border:1.5px solid var(--lb-indigo);}
.lb-btn-ghost:hover{background:var(--lb-indigo-soft);color:var(--lb-indigo);}
.lb-btn-cyan{background:var(--lb-cyan);color:#fff;box-shadow:0 8px 20px rgba(18,182,201,.25);}
.lb-btn-cyan:hover{background:var(--lb-cyan-deep);color:#fff;transform:translateY(-1px);}

/* ============ 카드 ============ */
.lb-card{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);box-shadow:var(--lb-shadow-sm);transition:transform var(--lb-transition),box-shadow var(--lb-transition);}
.lb-card:hover{transform:translateY(-4px);box-shadow:var(--lb-shadow-md);}
.lb-card-link{display:flex;flex-direction:column;height:100%;color:inherit;text-decoration:none;}
.lb-card-thumb{aspect-ratio:16/9;overflow:hidden;border-radius:var(--lb-radius-lg) var(--lb-radius-lg) 0 0;}
.lb-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.lb-card-link:hover .lb-card-thumb img{transform:scale(1.04);}
.lb-card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.lb-card-meta{display:flex;align-items:center;gap:10px;font-size:.78rem;color:var(--lb-gray-light);}
.lb-card-cat{color:var(--lb-cyan-deep);font-weight:700;background:var(--lb-cyan-soft);padding:3px 10px;border-radius:var(--lb-radius-full);}
.lb-card h3{margin:0;font-size:1.08rem;font-weight:700;line-height:1.5;letter-spacing:-.01em;}
.lb-card p{margin:0;font-size:.9rem;color:var(--lb-gray);line-height:1.65;}
.lb-card-more{margin-top:auto;font-size:.88rem;font-weight:700;color:var(--lb-indigo);display:inline-flex;align-items:center;gap:6px;}
.lb-card-more::after{content:'→';transition:transform var(--lb-transition);}
.lb-card-link:hover .lb-card-more::after{transform:translateX(4px);}
.lb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;}

/* ============ 글 목록 ============ */
.lb-archive-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:28px;}

/* ============ 단일 글 ============ */
.lb-single-wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.lb-single{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:56px 0 88px;}
.lb-article{min-width:0;}
.lb-article-hero{background:linear-gradient(180deg,var(--lb-indigo-soft),var(--lb-bg));border-radius:var(--lb-radius-lg);padding:clamp(28px,5vw,64px);margin-bottom:40px;}
.lb-article-hero .lb-card-cat{margin-bottom:14px;display:inline-block;}
.lb-article-hero h1{margin:0 0 14px;font-size:clamp(1.7rem,4vw,2.6rem);font-weight:800;letter-spacing:-.03em;line-height:1.3;}
.lb-article-hero .lb-article-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--lb-gray);font-size:.88rem;align-items:center;}
.lb-article-featured{margin-bottom:40px;border-radius:var(--lb-radius-lg);overflow:hidden;box-shadow:var(--lb-shadow-md);}
.lb-article-featured img{width:100%;display:block;aspect-ratio:16/9;object-fit:cover;}
.lb-article-body{max-width:820px;margin:0 auto;font-size:1.02rem;line-height:1.85;}
.lb-article-body > * + *{margin-top:1.4em;}
.lb-article-body h2{font-size:1.55rem;font-weight:800;letter-spacing:-.02em;margin:2.2em 0 .8em;padding-bottom:.5em;border-bottom:2px solid var(--lb-indigo-soft);scroll-margin-top:96px;}
.lb-article-body h3{font-size:1.22rem;font-weight:700;margin:1.8em 0 .6em;color:var(--lb-indigo-deep);scroll-margin-top:96px;}
.lb-article-body p{color:#2B3240;}
.lb-article-body a{font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-color:var(--lb-cyan);}
.lb-article-body ul,.lb-article-body ol{padding-left:1.4em;}
.lb-article-body li{margin:.45em 0;}
.lb-article-body strong{font-weight:700;}

/* Gutenberg 블록 정돈 */
.lb-article-body .wp-block-table,.lb-article-body figure.wp-block-table{margin:1.8em 0;}
.lb-article-body .wp-block-quote,.lb-article-body blockquote{border-left:4px solid var(--lb-cyan);background:var(--lb-cyan-soft);margin:1.8em 0;padding:20px 24px;border-radius:0 14px 14px 0;font-size:1rem;}
.lb-article-body .wp-block-quote p,.lb-article-body blockquote p{margin:0;}
.lb-article-body .wp-block-image,.lb-article-body figure{margin:1.8em 0;border-radius:var(--lb-radius-md);overflow:hidden;}
.lb-article-body .wp-block-image img,.lb-article-body figure img{display:block;width:100%;}
.lb-article-body .wp-block-image figcaption,.lb-article-body figure figcaption{font-size:.82rem;color:var(--lb-gray-light);text-align:center;padding:10px 0 0;}
.lb-article-body .wp-block-code,.lb-article-body pre{background:var(--lb-ink);color:#E8ECF5;border-radius:var(--lb-radius-md);padding:20px;overflow-x:auto;font-size:.88rem;line-height:1.6;}
.lb-article-body .wp-block-separator,.lb-article-body hr{border:0;border-top:1px solid var(--lb-border);margin:2.2em 0;}
.lb-article-body .wp-block-columns{display:flex;gap:24px;}
@media (max-width:720px){.lb-article-body .wp-block-columns{flex-direction:column;}}

/* EZ TOC */
#ez-toc-container{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);box-shadow:var(--lb-shadow-sm);padding:18px 20px;margin:1.8em 0;}
#ez-toc-container .ez-toc-title{font-weight:800;font-size:.95rem;color:var(--lb-indigo);}
#ez-toc-container ul{list-style:none;margin:.6em 0 0;padding:0;}
#ez-toc-container li{margin:.35em 0;}
#ez-toc-container a{color:var(--lb-gray);font-size:.92rem;font-weight:600;}
#ez-toc-container a:hover{color:var(--lb-cyan-deep);}

/* ============ 본문 시각 컴포넌트(요약·표·차트·콜아웃) ============ */
.lb-summary{background:linear-gradient(135deg,var(--lb-indigo-soft),var(--lb-cyan-soft));border:1px solid #DCE2F7;border-radius:var(--lb-radius-lg);padding:24px 26px;margin:1.8em 0;}
.lb-summary .lb-summary-title{display:flex;align-items:center;gap:8px;font-weight:800;color:var(--lb-indigo-deep);font-size:.98rem;margin-bottom:10px;}
.lb-summary p{margin:.5em 0;font-size:.95rem;color:#33405C;}
.lb-summary p:first-of-type{margin-top:0;}
.lb-callout{background:var(--lb-cyan-soft);border:1px solid #BFEAF0;border-left:4px solid var(--lb-cyan);border-radius:0 var(--lb-radius-md) var(--lb-radius-md) 0;padding:20px 24px;margin:1.8em 0;}
.lb-callout .lb-callout-title{font-weight:800;color:var(--lb-cyan-deep);font-size:.96rem;margin-bottom:6px;display:flex;gap:8px;align-items:center;}
.lb-callout p{margin:.4em 0;font-size:.95rem;color:#24505C;}
.lb-callout-amber{background:#FFF6E8;border-color:#FADFB5;border-left-color:var(--lb-amber);}
.lb-callout-amber .lb-callout-title{color:#B97614;}
.lb-callout-amber p{color:#5C4A2A;}

table.lb-table,table.lb-compare{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);overflow:hidden;font-size:.93rem;margin:1.8em 0;box-shadow:var(--lb-shadow-sm);}
table.lb-table th,table.lb-compare th{background:var(--lb-indigo);color:#fff;text-align:left;padding:13px 16px;font-weight:700;font-size:.9rem;letter-spacing:.01em;}
table.lb-table td,table.lb-compare td{padding:12px 16px;border-top:1px solid var(--lb-border);vertical-align:top;color:#2B3240;}
table.lb-table tr:nth-child(even) td,table.lb-compare tr:nth-child(even) td{background:var(--lb-gray-soft);}
table.lb-table td:first-child,table.lb-compare td:first-child{font-weight:600;color:var(--lb-indigo-deep);}
.table-scroll{overflow-x:auto;margin:1.8em 0;-webkit-overflow-scrolling:touch;}
.table-scroll table{margin:0;}

.lb-bars{margin:1.8em 0;display:flex;flex-direction:column;gap:14px;background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:22px 24px;box-shadow:var(--lb-shadow-sm);}
.lb-bars .lb-bar-row{display:grid;grid-template-columns:130px 1fr 64px;align-items:center;gap:14px;}
.lb-bars .lb-bar-label{font-size:.88rem;font-weight:600;color:var(--lb-gray);text-align:right;}
.lb-bars .lb-bar-track{background:var(--lb-gray-soft);border-radius:var(--lb-radius-full);height:14px;overflow:hidden;}
.lb-bars .lb-bar-fill{height:100%;border-radius:var(--lb-radius-full);background:linear-gradient(90deg,var(--lb-indigo),var(--lb-cyan));transition:width .9s cubic-bezier(.4,0,.2,1);}
.lb-bars .lb-bar-fill.amber{background:linear-gradient(90deg,#F2A73B,#F6C87A);}
.lb-bars .lb-bar-fill.mint{background:linear-gradient(90deg,#34C3A0,#7BDDC4);}
.lb-bars .lb-bar-val{font-size:.82rem;font-weight:700;color:var(--lb-indigo);}
.lb-bars .lb-bar-cap{grid-column:2/4;font-size:.78rem;color:var(--lb-gray-light);margin-top:-6px;}
@media (max-width:640px){.lb-bars .lb-bar-row{grid-template-columns:1fr;gap:6px;}.lb-bars .lb-bar-label{text-align:left;}.lb-bars .lb-bar-cap{grid-column:1;}}

.lb-gauge-wrap{margin:1.8em 0;background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:24px;box-shadow:var(--lb-shadow-sm);}
.lb-gauge-row{display:grid;grid-template-columns:120px 1fr 80px;gap:14px;align-items:center;margin:10px 0;}
.lb-gauge-label{font-size:.88rem;font-weight:600;color:var(--lb-gray);}
.lb-gauge-track{height:10px;border-radius:var(--lb-radius-full);background:var(--lb-gray-soft);overflow:hidden;}
.lb-gauge-fill{height:100%;border-radius:var(--lb-radius-full);background:linear-gradient(90deg,var(--lb-cyan),var(--lb-indigo));}
.lb-gauge-val{font-size:.85rem;font-weight:700;color:var(--lb-indigo);text-align:right;}
@media (max-width:640px){.lb-gauge-row{grid-template-columns:1fr 80px;}.lb-gauge-label{grid-column:1/3;margin-bottom:-4px;}}

.lb-steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:1.8em 0;}
.lb-step{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:18px 16px;text-align:center;position:relative;box-shadow:var(--lb-shadow-sm);}
.lb-step-num{width:34px;height:34px;border-radius:50%;background:var(--lb-indigo);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:.9rem;margin-bottom:10px;}
.lb-step:nth-child(2) .lb-step-num{background:var(--lb-cyan);}
.lb-step:nth-child(3) .lb-step-num{background:var(--lb-indigo);}
.lb-step:nth-child(4) .lb-step-num{background:var(--lb-cyan);}
.lb-step b{display:block;font-size:.92rem;font-weight:700;color:var(--lb-ink);}
.lb-step span{display:block;font-size:.8rem;color:var(--lb-gray);margin-top:4px;}

.lb-timeline{margin:1.8em 0;padding-left:0;list-style:none;position:relative;}
.lb-timeline::before{content:'';position:absolute;left:14px;top:8px;bottom:8px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--lb-indigo),var(--lb-cyan));}
.lb-timeline li{position:relative;padding:0 0 22px 48px;}
.lb-timeline li:last-child{padding-bottom:0;}
.lb-timeline li::before{content:'';position:absolute;left:7px;top:6px;width:17px;height:17px;border-radius:50%;background:#fff;border:4px solid var(--lb-cyan);}
.lb-timeline li:nth-child(2n)::before{border-color:var(--lb-indigo);}
.lb-timeline b{display:block;font-size:.95rem;font-weight:700;}
.lb-timeline span{display:block;font-size:.86rem;color:var(--lb-gray);margin-top:2px;}

.lb-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:0;margin:1.8em 0;background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:24px;box-shadow:var(--lb-shadow-sm);justify-content:center;}
.lb-flow-node{background:var(--lb-indigo-soft);border:1.5px solid #C9D2F2;border-radius:var(--lb-radius-md);padding:14px 18px;text-align:center;min-width:130px;}
.lb-flow-node b{display:block;font-size:.9rem;color:var(--lb-indigo-deep);}
.lb-flow-node span{display:block;font-size:.78rem;color:var(--lb-gray);margin-top:4px;}
.lb-flow-node.cyan{background:var(--lb-cyan-soft);border-color:#BEE9EF;}
.lb-flow-node.cyan b{color:var(--lb-cyan-deep);}
.lb-flow-node.amber{background:#FFF6E8;border-color:#F6D9A8;}
.lb-flow-node.amber b{color:#B97614;}
.lb-flow-arrow{display:flex;align-items:center;padding:0 10px;color:var(--lb-cyan);font-weight:800;font-size:1.2rem;}
@media (max-width:640px){.lb-flow{flex-direction:column;}.lb-flow-arrow{transform:rotate(90deg);padding:6px 0;justify-content:center;}}

.lb-matrix{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:1.8em 0;}
.lb-matrix-item{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:18px;box-shadow:var(--lb-shadow-sm);}
.lb-matrix-item b{display:block;font-size:.95rem;margin-bottom:6px;color:var(--lb-indigo-deep);}
.lb-matrix-item .lb-tag{display:inline-block;font-size:.75rem;font-weight:700;padding:3px 10px;border-radius:var(--lb-radius-full);margin:2px 4px 2px 0;background:var(--lb-gray-soft);color:var(--lb-gray);}
.lb-matrix-item .lb-tag.high{background:#E7F7F0;color:#1E8A63;}
.lb-matrix-item .lb-tag.mid{background:var(--lb-cyan-soft);color:var(--lb-cyan-deep);}
.lb-matrix-item .lb-tag.low{background:#FDEFF0;color:#C0455A;}

.lb-figure{margin:1.8em 0;border-radius:var(--lb-radius-lg);overflow:hidden;box-shadow:var(--lb-shadow-sm);background:var(--lb-card);border:1px solid var(--lb-border);}
.lb-figure img{display:block;width:100%;}
.lb-figure figcaption{padding:12px 18px;font-size:.82rem;color:var(--lb-gray-light);text-align:center;}

.lb-toc{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:20px 24px;margin:1.8em 0;box-shadow:var(--lb-shadow-sm);}
.lb-toc b{display:flex;align-items:center;gap:8px;font-size:.95rem;color:var(--lb-indigo);margin-bottom:10px;}
.lb-toc ol{margin:0;padding-left:1.3em;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:6px 20px;}
.lb-toc li{font-size:.9rem;margin:2px 0;}
.lb-toc a{color:var(--lb-gray);font-weight:600;}
.lb-toc a:hover{color:var(--lb-cyan-deep);}

.lb-related{margin-top:56px;padding-top:40px;border-top:1px solid var(--lb-border);}
.lb-related h2{font-size:1.35rem;font-weight:800;margin:0 0 24px;}

/* ============ 푸터 ============ */
.lb-footer{background:var(--lb-ink);color:#B9C0CD;margin-top:0;}
.lb-footer-top{padding:72px 0 40px;border-bottom:1px solid rgba(255,255,255,.1);}
.lb-footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;}
.lb-footer-brand img{height:34px;width:auto;margin-bottom:14px;}
.lb-footer-brand p{font-size:.9rem;margin:0;max-width:340px;line-height:1.7;}
.lb-footer h4{color:#fff;font-size:.95rem;margin:0 0 14px;}
.lb-footer ul{list-style:none;margin:0;padding:0;}
.lb-footer li{margin:8px 0;}
.lb-footer a{color:#B9C0CD;font-size:.9rem;}
.lb-footer a:hover{color:#fff;}
.lb-footer-bottom{padding:28px 0 36px;}
.lb-footer-legal{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--lb-radius-md);padding:18px 22px;margin-bottom:24px;font-size:.8rem;color:#AAB2C0;line-height:1.7;}
.lb-footer-legal p{margin:.35em 0;}
.lb-footer-legal .lb-legal-title{font-weight:700;color:#D6DBE4;}
.lb-footer-copy{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:.82rem;color:#8C95A5;}
@media (max-width:860px){.lb-footer-grid{grid-template-columns:1fr;gap:32px;}}

/* ============ 페이지·404·검색 ============ */
.lb-prose{max-width:820px;margin:0 auto;font-size:1.02rem;line-height:1.85;}
.lb-prose h2{font-size:1.5rem;margin:2em 0 .8em;color:var(--lb-indigo-deep);}
.lb-prose h3{font-size:1.2rem;margin:1.6em 0 .6em;}
.lb-prose p{margin:1em 0;}
.lb-404{text-align:center;padding:120px 0;}
.lb-404 h1{font-size:3rem;margin:0 0 12px;}
.lb-search-form{display:flex;gap:10px;max-width:520px;margin:24px auto 0;}
.lb-search-form input[type=search]{flex:1;min-height:48px;border:1.5px solid var(--lb-border);border-radius:var(--lb-radius-full);padding:0 20px;font-size:1rem;font-family:inherit;}
.lb-search-form button{border:0;}
.lb-pagination{display:flex;justify-content:center;gap:8px;margin-top:48px;}
.lb-pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 12px;border-radius:12px;background:#fff;border:1px solid var(--lb-border);color:var(--lb-gray);font-weight:600;}
.lb-pagination .page-numbers.current{background:var(--lb-indigo);border-color:var(--lb-indigo);color:#fff;}
.lb-pagination a:hover{border-color:var(--lb-indigo);color:var(--lb-indigo);}

/* ============ 글 본문 공통 디자인 (single·페이지) ============ */
.lb-article-body{font-size:16px;line-height:1.75;color:var(--lb-ink);}
.lb-article-body h2,.lb-prose h2{font-size:1.42rem;color:var(--lb-indigo-deep);margin:2.2em 0 .7em;padding-bottom:.4em;border-bottom:2px solid var(--lb-cyan-soft);}
.lb-article-body h3,.lb-prose h3{font-size:1.16rem;color:var(--lb-indigo);margin:1.7em 0 .6em;}
.lb-article-body p,.lb-prose p{margin:1em 0;}
.lb-article-body ul,.lb-article-body ol,.lb-prose ul,.lb-prose ol{margin:1em 0;padding-left:1.35em;}
.lb-article-body li,.lb-prose li{margin:.45em 0;line-height:1.7;}
.lb-article-body blockquote{margin:1.6em 0;padding:1em 1.2em;border-left:4px solid var(--lb-cyan);background:var(--lb-cyan-soft);border-radius:0 var(--lb-radius-md) var(--lb-radius-md) 0;color:var(--lb-gray);}
.lb-article-body img{border-radius:var(--lb-radius-md);}
.lb-article-body .legal-notice{overflow-wrap:break-word;}
@media (max-width:640px){.lb-article-body .legal-notice{padding:10px 12px !important;font-size:.82em !important;}}

/* ============ 강의 시리즈(lsn-) 레거시 스타일 통일 ============ */
.lsn-hero{background:linear-gradient(135deg,var(--lb-indigo-soft),var(--lb-cyan-soft));border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:28px 26px;margin:0 0 28px;}
.lsn-hero-meta{display:flex;flex-wrap:wrap;gap:8px 14px;align-items:center;font-size:.86rem;color:var(--lb-gray);margin-bottom:14px;}
.lsn-course{font-weight:700;color:var(--lb-indigo);}
.lsn-num,.lsn-eta{background:#fff;border:1px solid var(--lb-border);border-radius:var(--lb-radius-full);padding:4px 12px;font-size:.8rem;}
.lsn-hero-progress{height:8px;background:#fff;border:1px solid var(--lb-border);border-radius:var(--lb-radius-full);overflow:hidden;}
.lsn-hero-bar{height:100%;background:linear-gradient(90deg,var(--lb-indigo),var(--lb-cyan));}
.lsn-hero-pct{font-size:.8rem;color:var(--lb-gray);margin-top:8px;}
.lsn-tldr{background:var(--lb-card);border:1px solid var(--lb-border);border-left:4px solid var(--lb-indigo);border-radius:var(--lb-radius-md);padding:16px 18px;margin:0 0 24px;box-shadow:var(--lb-shadow-sm);}
.lsn-tldr-label{font-weight:700;color:var(--lb-indigo);font-size:.86rem;margin-bottom:4px;}
.lsn-tldr-body{color:var(--lb-gray);}
.lsn-section{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:24px;margin:0 0 20px;box-shadow:var(--lb-shadow-sm);}
.lsn-section h2{margin-top:0;border-bottom:0;padding-bottom:0;}
.lsn-why-tag,.lsn-analogy-icon,.lsn-case-head{display:inline-block;background:var(--lb-indigo-soft);color:var(--lb-indigo-deep);font-weight:700;font-size:.84rem;padding:6px 14px;border-radius:var(--lb-radius-full);margin-bottom:10px;}
.lsn-analogy{background:var(--lb-amber);}
.lsn-objective h2{margin-top:0;}
.lsn-obj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:14px;}
.lsn-obj-item{background:var(--lb-gray-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:16px;display:flex;gap:12px;align-items:flex-start;}
.lsn-obj-num{background:var(--lb-indigo);color:#fff;border-radius:50%;width:28px;height:28px;display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:.85rem;flex:0 0 auto;}
.lsn-obj-text{font-size:.92rem;color:var(--lb-gray);}
.lsn-step-card{background:var(--lb-gray-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:20px;margin:12px 0;}
.lsn-step-num{font-weight:800;color:var(--lb-cyan-deep);letter-spacing:.04em;font-size:.85rem;}
.lsn-step-title{font-size:1.05rem;color:var(--lb-indigo-deep);margin:6px 0 8px;}
.lsn-step-body{color:var(--lb-gray);font-size:.95rem;}
.lsn-step-action{background:var(--lb-cyan-soft);border-radius:var(--lb-radius-md);padding:12px 14px;font-size:.9rem;color:var(--lb-cyan-deep);margin-top:10px;font-weight:600;}
.lsn-warning,.lsn-tip{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:16px 18px;margin:14px 0;box-shadow:var(--lb-shadow-sm);}
.lsn-warn-title,.lsn-tip-head{font-weight:700;font-size:.88rem;margin-bottom:6px;}
.lsn-warn-title{color:#C2410C;}
.lsn-tip-head{color:var(--lb-mint);}
.lsn-warn-body,.lsn-tip-body{color:var(--lb-gray);font-size:.93rem;}
.lsn-case{background:var(--lb-gray-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:18px;margin:12px 0;}
.lsn-case-body{color:var(--lb-gray);font-size:.93rem;margin-top:8px;}
.lsn-case-name{font-weight:700;color:var(--lb-indigo-deep);}
.lsn-code{background:#151B28;color:#DDE3F0;border-radius:var(--lb-radius-md);padding:18px 20px;overflow-x:auto;font-size:.88rem;line-height:1.6;margin:14px 0;}
.lsn-code-note{color:var(--lb-gray);font-size:.85rem;margin-top:8px;}
.lsn-formula{background:var(--lb-indigo-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-md);padding:16px 18px;margin:14px 0;font-weight:600;color:var(--lb-indigo-deep);}
.lsn-formula-eq,.lsn-formula-lhs,.lsn-formula-rhs{font-size:.95rem;}
.lsn-recap{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:22px 24px;margin:24px 0;box-shadow:var(--lb-shadow-sm);}
.lsn-recap-intro{font-weight:700;color:var(--lb-indigo-deep);margin-bottom:10px;}
.lsn-recap-q{font-weight:600;color:var(--lb-indigo);margin:12px 0 4px;}
.lsn-recap-list{color:var(--lb-gray);font-size:.95rem;}
.lsn-recap-prompt{background:var(--lb-cyan-soft);border-radius:var(--lb-radius-md);padding:12px 14px;font-size:.9rem;color:var(--lb-cyan-deep);margin-top:10px;}
.lsn-cta-box{background:linear-gradient(135deg,var(--lb-indigo),var(--lb-cyan));border-radius:var(--lb-radius-lg);padding:26px 28px;color:#fff;text-align:center;margin:24px 0;}
.lsn-cta-msg{font-weight:700;font-size:1.05rem;margin-bottom:6px;}
.lsn-cta-meta{font-size:.85rem;opacity:.9;margin-bottom:14px;}
.lsn-cta-btn{display:inline-block;background:#fff;color:var(--lb-indigo-deep);font-weight:700;padding:12px 26px;border-radius:var(--lb-radius-full);}
.lsn-cta-btn:hover{color:var(--lb-cyan-deep);}
@media (max-width:860px){.lsn-obj-grid{grid-template-columns:1fr;}}

/* ============ 매거진(mag-) 레거시 스타일 통일 ============ */
.mag-meta{display:flex;flex-wrap:wrap;gap:8px 12px;align-items:center;margin-bottom:16px;}
.mag-cat{display:inline-block;padding:5px 14px;border-radius:var(--lb-radius-full);font-size:.8rem;font-weight:700;color:#fff;}
.mag-eta{color:var(--lb-gray);font-size:.85rem;}
.mag-hook{background:var(--lb-indigo-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:22px 24px;margin-bottom:24px;}
.mag-hook-label{font-weight:700;color:var(--lb-indigo);font-size:.85rem;margin-bottom:8px;}
.mag-hook-text{font-size:1.08rem;color:var(--lb-ink);line-height:1.75;}
.mag-lead{font-size:1.05rem;color:var(--lb-gray);border-left:4px solid var(--lb-cyan);padding-left:16px;margin-bottom:28px;}
.mag-section{background:var(--lb-card);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:24px;margin-bottom:20px;box-shadow:var(--lb-shadow-sm);}
.mag-section-heading{font-size:1.18rem;color:var(--lb-indigo-deep);display:flex;align-items:baseline;gap:10px;border-bottom:0;padding-bottom:0;margin-top:0;}
.mag-section-num{font-weight:800;color:var(--lb-cyan);font-size:.95rem;flex:0 0 auto;}
.mag-section-highlight{background:var(--lb-cyan-soft);border-color:#C9EEF4;}
.mag-section-quote{background:var(--lb-gray-soft);}
.mag-callout{background:#fff;border:1px solid var(--lb-border);border-left:4px solid var(--lb-cyan);border-radius:var(--lb-radius-md);padding:14px 16px;margin:14px 0;color:var(--lb-gray);font-size:.95rem;}
.mag-quote{font-size:1.1rem;font-style:normal;font-weight:600;color:var(--lb-indigo-deep);border-left:4px solid var(--lb-amber);background:var(--lb-amber);margin:14px 0;}
.mag-list{margin:12px 0;}
.mag-list li{margin:.5em 0;color:var(--lb-gray);}
.mag-takeaway{background:linear-gradient(135deg,var(--lb-indigo),var(--lb-cyan));color:#fff;border-radius:var(--lb-radius-lg);padding:22px 24px;margin:24px 0;}
.mag-takeaway-label{font-weight:700;opacity:.92;font-size:.85rem;margin-bottom:6px;}
.mag-takeaway-text{font-size:1.08rem;font-weight:600;line-height:1.7;}
.mag-cta{text-align:center;background:var(--lb-indigo-soft);border:1px solid var(--lb-border);border-radius:var(--lb-radius-lg);padding:28px 24px;margin-top:28px;}
.mag-cta-text{color:var(--lb-gray);margin-bottom:14px;}
.mag-cta-btn{display:inline-block;background:var(--lb-indigo);color:#fff;font-weight:700;padding:12px 26px;border-radius:var(--lb-radius-full);}
.mag-cta-btn:hover{background:var(--lb-indigo-deep);color:#fff;}