:root{--dc-primary:#2f39d8;--dc-primary-dark:#16198f;--dc-text:#182033;--dc-muted:#6b7280;--dc-bg:#f7f7fc;--dc-card:#fff;--dc-border:#e7e9f2;--dc-success:#21a366;--dc-radius:18px;--dc-shadow:0 18px 45px rgba(31,36,111,.08)}
.dc-academy-page{background:var(--dc-bg)}
.dc-site-main{background:var(--dc-bg);color:var(--dc-text);min-height:60vh;font-family:inherit}
.dc-container{width:min(1180px,calc(100% - 32px));margin-inline:auto}
.dc-course-hero{padding:54px 0;background:linear-gradient(135deg,#f5f6ff 0%,#fff 100%);border-bottom:1px solid var(--dc-border)}
.dc-course-hero-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,.75fr);gap:36px;align-items:center}
.dc-eyebrow{display:inline-block;color:var(--dc-primary);font-weight:800;font-size:14px;margin-bottom:10px}
.dc-course-hero h1,.dc-lesson-header h1,.dc-archive-hero h1{margin:0 0 16px;font-size:clamp(32px,5vw,52px);line-height:1.25;color:var(--dc-text)}
.dc-course-lead{font-size:18px;line-height:1.9;color:var(--dc-muted);max-width:720px}
.dc-course-facts{display:flex;flex-wrap:wrap;gap:12px 22px;margin:24px 0;color:#40485a;font-size:15px}
.dc-button{display:inline-flex;align-items:center;justify-content:center;padding:13px 24px;border-radius:12px;background:var(--dc-primary);color:#fff!important;text-decoration:none!important;font-weight:800;box-shadow:0 10px 24px rgba(47,57,216,.22);transition:.2s ease}
.dc-button:hover{transform:translateY(-1px);background:var(--dc-primary-dark)}
.dc-button-small{padding:10px 18px;font-size:14px}
.dc-course-summary-card,.dc-content-card,.dc-module-card,.dc-video-shell,.dc-lesson-content,.dc-nav-card{background:var(--dc-card);border:1px solid var(--dc-border);border-radius:var(--dc-radius);box-shadow:var(--dc-shadow)}
.dc-course-summary-card{padding:18px}
.dc-course-thumb{border-radius:14px;overflow:hidden;margin-bottom:18px}.dc-course-thumb img{width:100%;height:auto;display:block}
.dc-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px}.dc-progress-header span{font-weight:900;color:var(--dc-primary)}
.dc-progress-track{height:10px;background:#eceef7;border-radius:999px;overflow:hidden}.dc-progress-track span{display:block;height:100%;background:linear-gradient(90deg,var(--dc-primary),#6973ff);border-radius:999px}
.dc-progress-caption{font-size:13px;color:var(--dc-muted);margin-top:10px}
.dc-course-content-section{padding:44px 0 72px}.dc-content-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:28px}.dc-main-column{min-width:0}
.dc-content-card{padding:28px;margin-bottom:34px}.dc-content-card h2,.dc-section-heading h2{margin:0 0 14px;font-size:28px}.dc-content-card p{line-height:2;color:#454d5d}
.dc-section-heading{display:flex;justify-content:space-between;align-items:end;margin:0 0 18px}
.dc-course-outline{display:grid;gap:18px}.dc-module-card{overflow:hidden}
.dc-module-heading{display:flex;justify-content:space-between;align-items:center;padding:20px 22px;border-bottom:1px solid var(--dc-border);background:#fbfbfe}.dc-module-heading h2{font-size:20px;margin:3px 0 0}.dc-module-label{font-size:12px;color:var(--dc-primary);font-weight:800}.dc-module-count{font-size:13px;color:var(--dc-muted)}
.dc-module-description{padding:16px 22px 0;color:var(--dc-muted)}
.dc-lesson-list{list-style:none;margin:0;padding:0}.dc-lesson-row{margin:0;border-bottom:1px solid #eff0f5}.dc-lesson-row:last-child{border-bottom:0}.dc-lesson-row a{display:grid;grid-template-columns:42px minmax(0,1fr) auto 28px;gap:12px;align-items:center;padding:15px 20px;color:var(--dc-text)!important;text-decoration:none!important;transition:.15s ease}.dc-lesson-row a:hover{background:#f7f8ff}.dc-lesson-number{width:34px;height:34px;border-radius:10px;background:#eef0ff;color:var(--dc-primary);display:grid;place-items:center;font-weight:900}.dc-lesson-title{font-weight:700}.dc-free-badge{font-size:12px;padding:5px 10px;border-radius:999px;background:#eaf8f0;color:#117a49;font-weight:800}.dc-play-icon{color:var(--dc-primary)}
.dc-empty-state{padding:24px;background:#fff;border:1px dashed #cfd3e5;border-radius:14px;color:var(--dc-muted)}
.dc-lesson-layout{padding:32px 0 64px}.dc-breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;color:var(--dc-muted);font-size:14px;margin-bottom:24px}.dc-breadcrumb a{color:var(--dc-primary);text-decoration:none}.dc-lesson-header{margin-bottom:24px}.dc-lesson-header h1{font-size:clamp(28px,4vw,42px)}
.dc-video-shell{padding:14px;overflow:hidden}.dc-video{position:relative;width:100%;aspect-ratio:16/9;background:#0c0f18;border-radius:14px;overflow:hidden}.dc-video iframe{position:absolute;inset:0;width:100%!important;height:100%!important;border:0!important}
.dc-lesson-content{padding:28px;margin-top:24px;line-height:2}.dc-lesson-navigation{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:24px}.dc-nav-card{display:flex;flex-direction:column;gap:6px;padding:18px 20px;text-decoration:none!important;color:var(--dc-text)!important;transition:.2s ease}.dc-nav-card:hover{transform:translateY(-2px);border-color:#cfd3ff}.dc-nav-card span{font-size:12px;color:var(--dc-muted)}.dc-nav-card strong{font-size:15px}.dc-next{text-align:left}
.dc-academy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:24px}.dc-course-card{background:#fff;border:1px solid var(--dc-border);border-radius:var(--dc-radius);overflow:hidden;box-shadow:var(--dc-shadow)}.dc-course-cover{display:block;aspect-ratio:16/9;background:#eef0f8;overflow:hidden}.dc-course-cover img{width:100%;height:100%;object-fit:cover}.dc-card-body{padding:22px}.dc-card-meta{font-size:13px;color:var(--dc-primary);font-weight:800}.dc-card-body h2{font-size:22px;margin:8px 0}.dc-card-body h2 a{color:var(--dc-text);text-decoration:none}.dc-card-body p{color:var(--dc-muted);line-height:1.8}.dc-archive-hero{padding:56px 0;text-align:center;background:linear-gradient(135deg,#f5f6ff,#fff);border-bottom:1px solid var(--dc-border)}.dc-archive-hero p{color:var(--dc-muted);font-size:18px}
.dc-muted{color:var(--dc-muted);padding:16px 22px}
@media(max-width:900px){.dc-course-hero-grid{grid-template-columns:1fr}.dc-course-summary-card{max-width:520px}.dc-course-facts{gap:10px}.dc-course-hero{padding:38px 0}}
@media(max-width:640px){.dc-container{width:min(100% - 20px,1180px)}.dc-course-hero h1,.dc-archive-hero h1{font-size:32px}.dc-course-content-section{padding:28px 0 48px}.dc-content-card{padding:20px}.dc-module-heading{padding:16px}.dc-lesson-row a{grid-template-columns:38px minmax(0,1fr) auto;padding:13px}.dc-play-icon{display:none}.dc-free-badge{font-size:11px;padding:4px 8px}.dc-lesson-navigation{grid-template-columns:1fr}.dc-next{text-align:right}.dc-video-shell{padding:8px;border-radius:14px}}

/* v2.2 lesson progress states */
.dc-lesson-status{margin-inline-start:auto;font-size:12px;font-weight:700;color:#64748b;white-space:nowrap}
.dc-status-completed .dc-lesson-status{color:#15803d}
.dc-status-in-progress .dc-lesson-status{color:#b45309}
.dc-status-completed .dc-lesson-number{background:#dcfce7;color:#166534}
.dc-status-in-progress .dc-lesson-number{background:#fef3c7;color:#92400e}
@media (max-width:640px){.dc-lesson-status{display:none}}