:root{--lms-navy:#0b1e3d;--lms-teal:#0e8fa6;--lms-cyan:#76dce7;--lms-ink:#16233a;--lms-muted:#5a6b84;--lms-line:#dfe7ef;--lms-bg:#f5f7fa;--lms-white:#fff;--lms-ok:#117a57;--lms-stop:#a13b3b}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--lms-bg);color:var(--lms-ink);font-family:"Pretendard Variable",Pretendard,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;-webkit-font-smoothing:antialiased}a{color:var(--lms-teal);text-decoration:none}a:hover{text-decoration:underline}.lms-shell{width:min(1120px,calc(100% - 48px));margin:0 auto}.lms-hero,.lms-page-hero,.lms-lesson-head{position:relative;overflow:hidden;background:var(--lms-navy);color:#fff}.lms-hero:before,.lms-page-hero:before{position:absolute;inset:0;content:"";background:radial-gradient(720px 430px at 85% 0,rgba(22,179,198,.28),transparent 68%)}.lms-hero .lms-shell,.lms-page-hero .lms-shell{position:relative}.lms-hero{padding:96px 0 90px}.lms-page-hero{padding:70px 0}.lms-lesson-head{padding:44px 0}.lms-lesson-head a{display:inline-block;margin-bottom:28px;color:var(--lms-cyan)}.lms-eyebrow{display:block;margin-bottom:14px;color:var(--lms-cyan);font-size:13px;font-weight:800;letter-spacing:2px}.lms-hero h1,.lms-page-hero h1,.lms-lesson-head h1{max-width:820px;margin:0 0 20px;line-height:1.12;letter-spacing:-1.8px}.lms-hero h1{font-size:clamp(40px,6vw,64px)}.lms-page-hero h1,.lms-lesson-head h1{font-size:clamp(34px,5vw,50px)}.lms-hero p,.lms-page-hero p,.lms-lesson-head p{max-width:760px;margin:0 0 26px;color:#c4d2e4;font-size:18px;line-height:1.75}.lms-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}.lms-button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border:1px solid var(--lms-teal);border-radius:10px;background:var(--lms-teal);color:#fff;font:inherit;font-weight:800;cursor:pointer}.lms-button:hover{text-decoration:none;filter:brightness(.96)}.lms-button-secondary{border-color:#7bd1dc;background:transparent;color:var(--lms-cyan)}.lms-button-disabled{cursor:not-allowed;opacity:.65}.lms-section{padding:72px 0}.lms-section-dark{background:#071426;color:#fff}.lms-section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:30px}.lms-section h2{margin:0 0 12px;color:var(--lms-navy);font-size:30px;letter-spacing:-.7px}.lms-section-dark h2{color:#fff}.lms-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.lms-card{display:block;padding:28px;border:1px solid var(--lms-line);border-radius:18px;background:#fff;box-shadow:0 12px 32px rgba(11,30,61,.06);color:var(--lms-ink);transition:.18s}.lms-card:hover{border-color:#7bd1dc;box-shadow:0 16px 36px rgba(11,30,61,.1);text-decoration:none;transform:translateY(-2px)}.lms-card h2,.lms-card h3{margin:18px 0 10px;color:var(--lms-navy);font-size:22px}.lms-card p{color:var(--lms-muted);line-height:1.65}.lms-badges{display:flex;flex-wrap:wrap;gap:7px}.lms-badge{display:inline-flex;padding:5px 9px;border-radius:999px;background:#edf3f8;color:#43546b;font-size:12px;font-weight:800}.lms-badge-ok{background:#e5f6ef;color:var(--lms-ok)}.lms-badge-stop{background:#fdebea;color:var(--lms-stop)}.lms-text-link{font-weight:800}.lms-price{font-size:28px!important;font-weight:900;color:#fff!important}.lms-card .lms-price{color:var(--lms-navy)!important}.lms-price small{display:block;margin-top:6px;font-size:14px;font-weight:600;color:#9eb0c5}.lms-two-col,.lms-course-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:48px;align-items:start}.lms-reading{max-width:860px}.lms-prose{padding:42px;border:1px solid var(--lms-line);border-radius:18px;background:#fff;box-shadow:0 12px 34px rgba(11,30,61,.05);font-size:17px;line-height:1.82}.lms-prose h1,.lms-prose h2,.lms-prose h3,.lms-prose h4{margin:1.7em 0 .65em;color:var(--lms-navy);line-height:1.3}.lms-prose h1:first-child,.lms-prose h2:first-child{margin-top:0}.lms-prose code{padding:.12em .35em;border-radius:5px;background:#edf2f7;color:#7a2944}.lms-prose pre{overflow:auto;padding:22px;border-radius:12px;background:#071426;color:#dbe7f5;line-height:1.55}.lms-prose pre code{padding:0;background:transparent;color:inherit}.lms-prose blockquote{margin:24px 0;padding:14px 18px;border-left:4px solid var(--lms-teal);background:#eef9fa;color:#334b6c}.lms-prose img{display:block;max-width:100%;height:auto;margin:auto;border-radius:12px}.lms-prose figure{margin:30px 0}.lms-prose figcaption{margin-top:9px;color:var(--lms-muted);font-size:14px;text-align:center}.lms-media-placeholder{display:grid;min-height:180px;place-items:center;padding:26px;border:2px dashed #a9bbc9;border-radius:14px;background:#f3f7fa;color:var(--lms-muted)}.lms-table-wrap{overflow-x:auto}.lms-prose table,.lms-spec-card table{width:100%;border-collapse:collapse}.lms-prose th,.lms-prose td,.lms-spec-card th,.lms-spec-card td{padding:12px;border-bottom:1px solid var(--lms-line);text-align:left}.lms-spec-card{position:sticky;top:92px;padding:26px;border:1px solid var(--lms-line);border-radius:16px;background:#fff;color:var(--lms-muted);line-height:1.65}.lms-spec-card h2,.lms-spec-card h3{color:var(--lms-navy)}.lms-module{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px;margin:20px 0;padding:26px;border:1px solid var(--lms-line);border-radius:16px;background:#fff}.lms-module-code{font-weight:900;color:var(--lms-teal)}.lms-module h2{font-size:21px}.lms-module p{color:var(--lms-muted);line-height:1.6}.lms-module ul{margin:0;padding:0;list-style:none}.lms-module li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid #edf1f5}.lms-module li:last-child{border:0}.lms-lock-box{margin-top:32px;padding:26px;border:1px solid #aedce2;border-radius:14px;background:#edf9fa;text-align:center}.lms-lesson-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:38px;padding-top:28px;border-top:1px solid var(--lms-line)}.lms-attribution{margin-top:42px;padding-top:24px;border-top:1px solid var(--lms-line);color:var(--lms-muted);font-size:13px;line-height:1.6}.lms-lead-panel{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}.lms-lead-form label{display:block;margin-bottom:8px;font-weight:700}.lms-lead-form>div{display:flex}.lms-lead-form input[type=email]{min-width:0;flex:1;padding:14px;border:1px solid #7690ab;border-radius:9px 0 0 9px;font:inherit}.lms-lead-form button{padding:0 18px;border:0;border-radius:0 9px 9px 0;background:var(--lms-teal);color:#fff;font:inherit;font-weight:800}.lms-lead-form .lms-consent{margin-top:12px;color:#c4d2e4;font-size:13px;font-weight:500}.lms-form-status{width:100%;color:var(--lms-cyan);font-size:14px}.lms-footer{padding:46px 0;background:#050f1e;color:#a9b8ca}.lms-footer .lms-shell{display:grid;grid-template-columns:1fr 1.4fr;gap:36px}.lms-footer strong{color:#fff}.lms-footer p{line-height:1.65}.lms-footer a{color:var(--lms-cyan)}.lms-small{font-size:13px}.lms-empty{padding:80px 0;text-align:center}@media(max-width:900px){.lms-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.lms-two-col,.lms-course-layout{grid-template-columns:1fr}.lms-spec-card{position:static}.lms-module{grid-template-columns:1fr}.lms-lead-panel{grid-template-columns:1fr}}@media(max-width:640px){.lms-shell{width:min(100% - 32px,1120px)}.lms-hero{padding:70px 0}.lms-page-hero{padding:52px 0}.lms-section{padding:52px 0}.lms-grid{grid-template-columns:1fr}.lms-prose{padding:24px}.lms-section-head{align-items:start;flex-direction:column}.lms-footer .lms-shell{grid-template-columns:1fr}.lms-lead-form>div{display:grid;gap:8px}.lms-lead-form input[type=email],.lms-lead-form button{min-height:48px;border-radius:9px}}

/* --- LMS UX redesign (2026-08-18): learning-first landing + course-player lesson view --- */
.lms-section-sub{max-width:660px;margin:10px 0 0;color:var(--lms-muted);font-size:16px;line-height:1.7}
.lms-section-muted{background:#eef2f7}
.lms-hero-cta{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:26px}
.lms-hero-note{color:#c4d2e4;font-size:14px;font-weight:600}
.lms-page-hero .lms-hero-note{color:#c4d2e4}
.lms-track-card{display:flex;flex-direction:column;padding:26px;border:1px solid var(--lms-line);border-radius:18px;background:#fff;box-shadow:0 12px 32px rgba(11,30,61,.06);color:var(--lms-ink);transition:.18s}
.lms-track-card:hover{border-color:#7bd1dc;box-shadow:0 16px 36px rgba(11,30,61,.1);text-decoration:none;transform:translateY(-2px)}
.lms-track-card h3{margin:14px 0 8px;color:var(--lms-navy);font-size:20px}
.lms-track-card p{flex:1;color:var(--lms-muted);line-height:1.6}
.lms-track-foot{display:flex;align-items:center;gap:10px;margin-top:16px;flex-wrap:wrap}
.lms-track-meta{color:var(--lms-muted);font-size:13px}
.lms-track-card .lms-text-link{margin-left:auto}
.lms-cta-row{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.lms-cta-row h2{margin:0 0 8px;color:var(--lms-navy)}
.lms-cta-row p{margin:0;max-width:640px;color:var(--lms-muted);line-height:1.7}
.lms-curric-group{margin-bottom:44px}
.lms-curric-group:last-child{margin-bottom:0}
.lms-curric-group>.lms-eyebrow{color:var(--lms-teal)}
.lms-curric-group h2{margin:6px 0 18px;color:var(--lms-navy);font-size:26px}
.lms-module h3{margin:0 0 8px;color:var(--lms-navy);font-size:20px}
.lms-lesson-tags{display:inline-flex;align-items:center;gap:10px}
.lms-mins{color:var(--lms-muted);font-size:12px}
.lms-paid-panel{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;margin:0 0 22px;padding:24px;border:1px solid #cfe6ea;border-radius:16px;background:linear-gradient(180deg,#f2fbfc,#fff)}
.lms-paid-panel .lms-eyebrow{color:var(--lms-teal)}
.lms-paid-panel strong{display:block;margin:2px 0 6px;color:var(--lms-navy);font-size:19px}
.lms-paid-panel .lms-price{font-size:24px!important;color:var(--lms-navy)!important}
.lms-paid-panel .lms-price small{color:#9eb0c5}
.lms-paid-cta{text-align:right}
.lms-paid-cta .lms-small{margin:8px 0 0;color:var(--lms-muted)}
.lms-paid-owned{background:#e5f6ef;border-color:#bfe6d5}
.lms-paid-owned p{margin:4px 0 0;color:#2c6b52}
.lms-lesson-layout{display:grid;grid-template-columns:288px minmax(0,1fr);gap:40px;align-items:start}
.lms-lesson-main{min-width:0}
.lms-course-nav{position:sticky;top:92px;padding:22px;border:1px solid var(--lms-line);border-radius:16px;background:#fff;max-height:calc(100vh - 120px);overflow:auto}
.lms-course-nav-title{display:block;margin-bottom:14px;font-weight:800;color:var(--lms-navy)}
.lms-course-nav-mod{margin-bottom:14px}
.lms-course-nav-mod-head{margin-bottom:6px;font-size:13px;font-weight:800;color:var(--lms-muted)}
.lms-course-nav-mod-head .lms-module-code{color:var(--lms-teal)}
.lms-course-nav ol{margin:0;padding:0;list-style:none}
.lms-course-nav li a{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px;color:var(--lms-ink);font-size:14px;line-height:1.4}
.lms-course-nav li a:hover{background:#f0f5f9;text-decoration:none}
.lms-course-nav li.is-current a{background:var(--lms-navy);color:#fff;font-weight:700}
.lms-course-nav li.is-current .lms-nav-dot{background:#fff}
.lms-nav-done{color:var(--lms-ok);font-weight:900;font-size:13px;flex:none}
.lms-course-nav li.is-current .lms-nav-done{color:#8ff0cb}
.lms-nav-lock{font-size:11px;flex:none}
.lms-nav-dot{width:6px;height:6px;border-radius:50%;background:#cdd8e4;flex:none}
.lms-lesson-nav{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:34px}
.lms-lesson-nav a{display:flex;flex-direction:column;gap:4px;padding:16px 18px;border:1px solid var(--lms-line);border-radius:12px;background:#fff}
.lms-lesson-nav a:hover{border-color:#7bd1dc;text-decoration:none}
.lms-nav-next{text-align:right}
.lms-nav-dir{font-size:13px;font-weight:800;color:var(--lms-teal)}
.lms-nav-ttl{color:var(--lms-navy);font-weight:600}
.lms-nav-empty{visibility:hidden}
@media(max-width:900px){.lms-lesson-layout{grid-template-columns:1fr}.lms-course-nav{position:static;max-height:none;order:2}.lms-lesson-main{order:1}}
@media(max-width:640px){.lms-lesson-nav{grid-template-columns:1fr}.lms-nav-next{text-align:left}.lms-paid-cta{text-align:left}.lms-cta-row .lms-button{width:100%}}

/* --- LMS v2 slide player (2026-08-19) --- */
.lms-gate{padding:64px 0;text-align:center}
.lms-gate h2{margin:0 0 10px;color:var(--lms-navy)}
.lms-gate p{margin:0 auto 22px;max-width:520px;color:var(--lms-muted)}
.lms-player{padding:28px 0 64px;background:var(--lms-bg)}
.lms-stage{min-height:56vh;padding:38px 40px;border:1px solid var(--lms-line);border-radius:18px;background:#fff;box-shadow:0 14px 40px rgba(11,30,61,.06);overflow:auto}
.sl-eyebrow{display:block;margin-bottom:8px;color:var(--lms-teal);font-size:12px;font-weight:800;letter-spacing:2px}
.sl-head h2{margin:0 0 18px;color:var(--lms-navy);font-size:clamp(24px,3.5vw,34px);letter-spacing:-.6px;line-height:1.2}
.sl-body{font-size:18px;line-height:1.8;color:var(--lms-ink)}
.sl-body ul,.sl-body ol{padding-left:22px}.sl-body li{margin:6px 0}
.sl-body p{margin:.6em 0}
.sl-figure{margin:22px 0 0}.sl-figure img{display:block;max-width:100%;height:auto;margin:auto;border-radius:12px;border:1px solid var(--lms-line)}
.sl-codewrap{position:relative;margin:22px 0 0}
.sl-copy{position:absolute;top:10px;right:10px;padding:6px 12px;border:1px solid #34506e;border-radius:8px;background:#12263f;color:#cfe0f2;font:inherit;font-size:13px;font-weight:700;cursor:pointer}
.sl-copy:hover{background:#1b3350}
.sl-code{overflow:auto;margin:0;padding:20px;padding-top:44px;border-radius:12px;background:#071426;color:#dbe7f5;font-size:14px;line-height:1.6}
.sl-code code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.lms-playerbar{display:flex;align-items:center;gap:14px;margin-top:20px;flex-wrap:wrap}
.lms-pbtn{min-height:46px;padding:0 20px;border:1px solid var(--lms-line);border-radius:10px;background:#fff;color:var(--lms-navy);font:inherit;font-weight:800;cursor:pointer}
.lms-pbtn:hover:not(:disabled){border-color:#7bd1dc}
.lms-pbtn:disabled{opacity:.45;cursor:not-allowed}
.lms-pbtn-primary{background:var(--lms-teal);border-color:var(--lms-teal);color:#fff}
.lms-audio[data-state=playing]{background:#eef9fa;border-color:#8fd4de;color:var(--lms-teal)}
.lms-progress{flex:1;min-width:120px;height:8px;border-radius:99px;background:#e2e8f0;overflow:hidden}
#lms-progress-bar{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--lms-teal),var(--lms-cyan));transition:width .25s}
.lms-counter{font-size:13px;font-weight:700;color:var(--lms-muted);min-width:88px;text-align:right}
.sl-quiz-sub{color:var(--lms-muted);font-size:15px;margin:0 0 8px}
.sl-quiz{display:flex;flex-direction:column;gap:20px}
.sl-q{border:1px solid var(--lms-line);border-radius:14px;padding:18px 20px;margin:0}
.sl-q legend{font-weight:800;color:var(--lms-navy);padding:0 6px}
.sl-choice{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;cursor:pointer;font-size:16px}
.sl-choice:hover{background:#f2f6fa}
.sl-choice.correct{background:#e5f6ef;color:var(--lms-ok);font-weight:700}
.sl-choice.wrong{background:#fdebea;color:var(--lms-stop)}
.sl-q.is-correct{border-color:#bfe6d5}.sl-q.is-wrong{border-color:#f1c9c6}
.sl-explain{margin:10px 6px 0;color:var(--lms-muted);font-size:14px;line-height:1.6}
.sl-result{margin-top:24px;padding:22px;border:1px solid #aedce2;border-radius:14px;background:#edf9fa;text-align:center}
.sl-result strong{display:block;font-size:22px;color:var(--lms-navy);margin-bottom:6px}
.sl-result-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:14px}
@media(max-width:640px){.lms-stage{padding:24px 18px}.lms-playerbar{gap:10px}.lms-counter{display:none}.lms-pbtn{padding:0 14px}}
.sl-result-pass strong{color:var(--lms-ok)}

/* --- LMS v2 my-learning dashboard --- */
.lms-stat-strip{display:flex;gap:32px;margin-top:26px;flex-wrap:wrap}
.lms-stat{display:flex;flex-direction:column}
.lms-stat strong{font-size:34px;font-weight:900;line-height:1;color:#fff}
.lms-stat span{margin-top:6px;font-size:13px;color:#c4d2e4}
.lms-my-card{display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.lms-my-card h3{margin:4px 0 0;color:var(--lms-navy);font-size:19px}
.lms-my-card p{margin:0;flex:1;color:var(--lms-muted);line-height:1.6}
.lms-my-card .lms-text-link{margin-top:4px}

/* --- LMS SEO/GEO intro page --- */
.lms-check{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.lms-check li{position:relative;padding-left:28px;line-height:1.6;color:var(--lms-ink)}
.lms-check li:before{content:"✓";position:absolute;left:0;top:0;color:var(--lms-ok);font-weight:900}
.lms-syllabus{display:grid;gap:14px}
.lms-syl-mod{border:1px solid var(--lms-line);border-radius:14px;background:#fff;padding:20px 22px}
.lms-syl-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:10px}
.lms-syl-head .lms-module-code{font-weight:900;color:var(--lms-teal);font-size:15px;min-width:38px}
.lms-syl-head strong{display:block;color:var(--lms-navy);font-size:17px}
.lms-syl-head p{margin:4px 0 0;color:var(--lms-muted);font-size:14px;line-height:1.55}
.lms-syl-list{list-style:none;margin:0;padding:0;border-top:1px solid #eef2f6}
.lms-syl-list li{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:9px 0;border-bottom:1px solid #f0f4f8;font-size:15px;color:var(--lms-ink)}
.lms-syl-list li:last-child{border-bottom:0}
.lms-faq{display:grid;gap:10px;max-width:760px}
.lms-faq-item{border:1px solid var(--lms-line);border-radius:12px;background:#fff;padding:2px 18px}
.lms-faq-item summary{cursor:pointer;padding:16px 0;font-weight:700;color:var(--lms-navy);list-style:none}
.lms-faq-item summary::-webkit-details-marker{display:none}
.lms-faq-item summary:before{content:"+ ";color:var(--lms-teal);font-weight:900}
.lms-faq-item[open] summary:before{content:"− "}
.lms-faq-item p{margin:0 0 16px;color:var(--lms-muted);line-height:1.7}

/* 크레딧 결제 버튼 + 잔액 힌트 */
.lms-button-outline{background:transparent;color:var(--lms-teal);border:1.5px solid var(--lms-teal);margin-top:8px}
.lms-button-outline[disabled]{opacity:.5;cursor:not-allowed}
.lms-credit-hint{font-size:12.5px;color:#5c6b84;margin:8px 0 0}
.lms-credit-hint a{color:#b6772a;font-weight:600}