.tcts-modern-course,.tcts-modern-course *{box-sizing:border-box}
.tcts-modern-course{position:relative;left:50%;width:min(1180px,calc(100vw - 24px));max-width:none;margin:0;padding:6px 14px 46px;transform:translateX(-50%);color:#161824;background:#fff;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.tcts-course-breadcrumb{display:flex;align-items:center;gap:11px;margin:5px 0 27px;color:#6a7487;font-size:12px;font-weight:650}
.tcts-course-breadcrumb a{color:#64748b!important;text-decoration:none!important}.tcts-course-breadcrumb i{color:#9aa4b5;font-size:17px;font-style:normal}.tcts-course-breadcrumb strong{overflow:hidden;color:#2e3647;font-weight:750;text-overflow:ellipsis;white-space:nowrap}
.tcts-modern-course-hero{display:grid;grid-template-columns:minmax(360px,.95fr) minmax(420px,1.05fr);gap:36px;align-items:center}
.tcts-modern-course-media{position:relative;min-height:325px;overflow:hidden;border-radius:15px;background:linear-gradient(145deg,#09b69b,#057a73);box-shadow:0 14px 34px rgba(10,93,83,.16)}
.tcts-modern-course-media>img{display:block;width:100%;height:325px;object-fit:cover;object-position:center}
.tcts-modern-course-placeholder{display:grid;height:325px;place-content:center;text-align:center;color:#fff;background:radial-gradient(circle at 25% 15%,rgba(61,255,229,.25),transparent 24%),linear-gradient(145deg,#0bb99d,#066c68)}
.tcts-modern-course-placeholder span{display:block;font-size:72px;line-height:1}.tcts-modern-course-placeholder strong{display:block;margin-top:10px;font-size:36px;font-weight:900;letter-spacing:.02em}.tcts-modern-course-placeholder small{display:block;margin-top:8px;font-size:18px;font-weight:650}
.tcts-course-demo{position:absolute;z-index:2;right:50%;bottom:25px;display:inline-flex;min-height:38px;padding:0 17px;align-items:center;gap:8px;transform:translateX(50%);border-radius:999px;color:#fff!important;background:rgba(9,16,27,.9);font-size:12px;font-weight:800;text-decoration:none!important;box-shadow:0 5px 14px rgba(0,0,0,.2)}
.tcts-course-demo i{display:grid;width:20px;height:20px;place-items:center;border-radius:50%;background:#fff;color:#161824;font-size:9px;font-style:normal}
.tcts-modern-course-copy{min-width:0;padding:4px 0}
.tcts-modern-course-copy h1{margin:0;color:#14151d;font-size:clamp(30px,4vw,46px);font-weight:900;line-height:1.1;letter-spacing:-.035em}
.tcts-modern-course-stats{margin:12px 0 0;color:#4f596b;font-size:14px;font-weight:700;line-height:1.5}
.tcts-course-rating{display:flex;align-items:center;gap:7px;margin-top:17px;color:#5d6677;font-size:12px;font-weight:650;flex-wrap:wrap}
.tcts-course-rating>span{color:#ffac00;font-size:15px;letter-spacing:1px}.tcts-course-rating>strong{color:#1e2430;font-size:13px}.tcts-course-rating>i{width:1px;height:15px;margin:0 3px;background:#d7dce5}
.tcts-course-price-line{display:flex;align-items:center;gap:13px;margin-top:18px}
.tcts-course-price-line>strong{color:#11131b;font-size:34px;font-weight:900;letter-spacing:-.03em}.tcts-course-price-line del{color:#7d8798;font-size:17px;font-weight:700}.tcts-course-price-line span{padding:7px 10px;border-radius:6px;color:#268146;background:#d9f5df;font-size:12px;font-weight:900}
.tcts-modern-course-actions{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:19px}
.tcts-modern-course-actions a{display:flex;min-height:54px;align-items:center;justify-content:center;border-radius:9px;font-size:15px;font-weight:850;text-decoration:none!important;transition:transform .18s ease,box-shadow .18s ease}.tcts-modern-course-actions a:hover{transform:translateY(-2px)}
.tcts-modern-course-actions .is-primary{color:#fff!important;background:linear-gradient(135deg,#5930e7,#4a1cdb);box-shadow:0 8px 18px rgba(76,30,220,.22)}
.tcts-modern-course-actions .is-secondary{color:#5130dc!important;background:#fff;border:2px solid #a28af4;box-shadow:0 5px 15px rgba(76,30,220,.07)}
.tcts-purchase-main{display:flex;min-width:0;flex-direction:column;align-items:stretch;gap:5px}
.tcts-modern-course-actions .tcts-course-terms-link{min-height:0;justify-content:flex-start;color:#64748b!important;font-size:11px;font-weight:600;text-decoration:underline!important}
.tcts-modern-course-benefits{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:35px 0 30px;padding:20px 0;border-top:1px solid #edf0f5;border-bottom:1px solid #edf0f5}
.tcts-modern-course-benefits span{display:flex;align-items:center;justify-content:center;gap:10px;padding:6px 12px;color:#536073;font-size:12px;font-weight:700;text-align:center}
.tcts-modern-course-benefits i{display:grid;width:28px;height:28px;flex:0 0 auto;place-items:center;color:#526386;font-size:18px;font-style:normal}
.tcts-course-tabs{display:flex;gap:46px;align-items:center;min-height:55px;margin-bottom:30px;border-bottom:1px solid #dde3ec;overflow-x:auto;scrollbar-width:none}.tcts-course-tabs::-webkit-scrollbar{display:none}
.tcts-course-tabs a{position:relative;display:flex;min-height:55px;align-items:center;color:#455267!important;font-size:13px;font-weight:800;white-space:nowrap;text-decoration:none!important}.tcts-course-tabs a.active{color:#4d2ce0!important}.tcts-course-tabs a.active:after{position:absolute;right:0;bottom:-1px;left:0;height:3px;border-radius:3px 3px 0 0;background:#5531e5;content:""}
.tcts-modern-course-content{margin:0!important;padding:0!important}
.tcts-modern-content-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.tcts-modern-content-head h2{margin:0;color:#171923;font-size:23px;font-weight:900}.tcts-modern-content-head button{padding:7px 0;color:#4f2de1;background:transparent;border:0;font:inherit;font-size:12px;font-weight:850;cursor:pointer}
.tcts-modern-course .tcts-course-curriculum{gap:11px}
.tcts-modern-course .tcts-subject-card{overflow:hidden;border:1px solid #dfe5ee;border-radius:12px;background:#fff;box-shadow:0 4px 12px rgba(19,30,55,.035)}
.tcts-modern-course .tcts-subject-card>summary{grid-template-columns:46px minmax(0,1fr) auto 16px;min-height:72px;padding:11px 17px;background:#fbfcfe}
.tcts-modern-course .tcts-subject-index{width:40px;height:40px;border-radius:9px;background:linear-gradient(135deg,#ffbe42,#ff9825);font-size:0;box-shadow:none}
.tcts-modern-course .tcts-subject-index:before{content:"▤";font-size:19px}
.tcts-modern-course .tcts-subject-card:nth-child(4n+2) .tcts-subject-index{background:linear-gradient(135deg,#25c9c1,#0eb1b2)}
.tcts-modern-course .tcts-subject-card:nth-child(4n+3) .tcts-subject-index{background:linear-gradient(135deg,#a158ff,#7235e8)}
.tcts-modern-course .tcts-subject-card:nth-child(4n+4) .tcts-subject-index{background:linear-gradient(135deg,#6740f0,#4525d7)}
.tcts-modern-course .tcts-subject-title small{display:none}.tcts-modern-course .tcts-subject-title strong{color:#252a35;font-size:15px;font-weight:850}
.tcts-modern-course .tcts-subject-meta b{border:0;padding:0;background:transparent;color:#718096;font-size:11px;font-weight:650}
.tcts-modern-course .tcts-subject-content{gap:9px;padding:12px;background:#f8fafc}.tcts-modern-course .tcts-chapter-card{border-radius:10px}.tcts-modern-course .tcts-chapter-card>header{padding:10px 13px}.tcts-modern-course .tcts-chapter-card>header small{color:#6d4de5}.tcts-modern-course .tcts-test-row{margin:0;border-radius:0;box-shadow:none}
.tcts-modern-course .tcts-course-about{margin:34px 0 0;border:1px solid #e3e8f0;border-radius:14px;padding:25px;background:#fff;box-shadow:none;scroll-margin-top:90px}.tcts-modern-course .tcts-course-about h2{font-size:23px}
.tcts-modern-course-note{margin-top:20px;border:1px solid #e3e8f0;border-radius:14px;padding:22px;background:#fff;scroll-margin-top:90px}.tcts-modern-course-note h2{margin:0 0 12px;color:#171923;font-size:21px}.tcts-modern-course-note p{margin:0;color:#5e697b}.tcts-modern-course-note p span{color:#ffac00}.tcts-modern-course-note details{border-top:1px solid #edf0f5;padding:13px 0}.tcts-modern-course-note summary{color:#2b3240;font-weight:800;cursor:pointer}.tcts-modern-course-note details p{margin-top:8px;line-height:1.6}
@media(max-width:820px){.tcts-modern-course-hero{grid-template-columns:1fr;gap:22px}.tcts-modern-course-media,.tcts-modern-course-media>img,.tcts-modern-course-placeholder{height:auto;min-height:260px;max-height:390px}.tcts-modern-course-media>img{aspect-ratio:16/9;object-fit:cover}.tcts-modern-course-copy{text-align:left}.tcts-modern-course-benefits{grid-template-columns:repeat(2,minmax(0,1fr))}.tcts-modern-course-benefits span{justify-content:flex-start}.tcts-course-tabs{gap:34px}.tcts-modern-course .tcts-subject-card>summary{grid-template-columns:42px minmax(0,1fr) 16px}.tcts-modern-course .tcts-subject-meta{grid-column:2}.tcts-modern-course .tcts-subject-card>summary>i{grid-column:3;grid-row:1/3}}
@media(max-width:520px){.tcts-modern-course{width:100vw;padding:5px 12px 35px}.tcts-course-breadcrumb{margin-bottom:17px;font-size:10px}.tcts-modern-course-hero{gap:17px}.tcts-modern-course-media,.tcts-modern-course-placeholder{min-height:210px;border-radius:12px}.tcts-modern-course-media>img{min-height:210px}.tcts-modern-course-placeholder strong{font-size:28px}.tcts-modern-course-copy h1{font-size:27px}.tcts-modern-course-stats{font-size:12px}.tcts-course-rating{margin-top:12px;font-size:10px}.tcts-course-rating>span{font-size:12px}.tcts-course-price-line{margin-top:13px}.tcts-course-price-line>strong{font-size:29px}.tcts-modern-course-actions{gap:10px;margin-top:15px}.tcts-modern-course-actions a{min-height:49px;font-size:13px}.tcts-modern-course-benefits{gap:4px;margin:23px 0 18px;padding:15px 0}.tcts-modern-course-benefits span{gap:6px;padding:6px 3px;font-size:9px}.tcts-modern-course-benefits i{width:22px;font-size:14px}.tcts-course-tabs{gap:28px;min-height:50px;margin-bottom:23px}.tcts-course-tabs a{min-height:50px;font-size:11px}.tcts-modern-content-head h2{font-size:20px}.tcts-modern-course .tcts-subject-card>summary{min-height:64px;padding:9px 10px}.tcts-modern-course .tcts-subject-index{width:36px;height:36px}.tcts-modern-course .tcts-subject-title strong{font-size:13px}.tcts-modern-course .tcts-subject-meta b{font-size:9px;white-space:normal}.tcts-modern-course .tcts-course-about,.tcts-modern-course-note{padding:18px 15px}}
.tcts-modern-course .tcts-course-tabs{display:flex;flex-wrap:wrap;gap:6px;min-height:0;padding:8px 0}
.tcts-course-tabs [role="tab"]{border:0;border-bottom:3px solid transparent;background:transparent;color:#475569;padding:12px 15px;font:700 14px Inter,system-ui,sans-serif;cursor:pointer;min-height:44px}
.tcts-course-tabs [aria-selected="true"]{color:#5830d8;border-bottom-color:#5830d8;background:#f5f2ff}
.tcts-course-tabs [role="tab"]:focus-visible{outline:2px solid #5830d8;outline-offset:2px}
.tcts-course-panel[hidden]{display:none!important}
.tcts-course-panel{padding:20px;border:1px solid #e2e8f0;border-radius:12px;font-size:var(--tcts-tab-size,16px);overflow-wrap:anywhere;min-width:0}
.tcts-course-panel .tcts-tab-copy,.tcts-course-panel .tcts-tab-copy *{font-size:inherit!important}
.tcts-course-panel .tcts-tab-copy img{max-width:100%;height:auto}
.tcts-course-panel .tcts-tab-copy table{display:block;max-width:100%;overflow:auto}
.tcts-course-panel .tcts-course-curriculum :is(strong,b,p,h3,h4,small,a),.tcts-course-panel .tcts-syllabus-outline{font-size:var(--tcts-tab-size,16px)!important}
.tcts-syllabus-outline{padding:12px;border-bottom:1px solid #e2e8f0}
.tcts-syllabus-outline summary{cursor:pointer;font-weight:700}
.tcts-syllabus-subjects{margin:0;padding-left:1.4em;font-size:var(--tcts-tab-size,16px)}
.tcts-syllabus-subjects li{padding:12px 4px;border-bottom:1px solid #e2e8f0;overflow-wrap:anywhere}
.tcts-modern-course .tcts-course-curriculum.is-course .tcts-subject-card>summary{grid-template-columns:minmax(0,1fr) auto 18px;gap:12px}
.tcts-modern-course .tcts-course-curriculum.is-course .tcts-subject-title{min-width:0}
.tcts-modern-course .tcts-course-curriculum.is-course .tcts-subject-title strong{overflow-wrap:anywhere}
.tcts-modern-course .tcts-course-curriculum.is-course .tcts-subject-meta{grid-column:auto;min-width:0;text-align:right}
.tcts-modern-course .tcts-course-curriculum.is-course .tcts-subject-card>summary>i{grid-column:auto;grid-row:auto}
@media(max-width:520px){.tcts-course-tabs [role="tab"]{flex:1 1 auto;padding:10px 8px;font-size:12px}.tcts-course-panel{padding:12px}}
@media(max-width:520px){.tcts-modern-course-actions .tcts-course-terms-link{min-height:0;font-size:10px}}

/* 1.23.0: grouped parent courses with independent class-level courses. */
.tcts-course-levels{margin:24px 0 30px;padding:22px;border:1px solid #e2e8f0;border-radius:16px;background:linear-gradient(145deg,#f8faff,#fff);scroll-margin-top:24px}
.tcts-course-levels>header{margin:0 0 16px}.tcts-course-levels>header>span{color:#5630dc;font-size:12px;font-weight:850;text-transform:uppercase;letter-spacing:.06em}.tcts-course-levels>header h2{margin:5px 0;color:#172033;font-size:23px}.tcts-course-levels>header p{margin:0;color:#64748b;font-size:14px}
.tcts-course-level-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,390px),1fr));gap:11px}
.tcts-course-level-card{display:grid;grid-template-columns:42px minmax(0,1fr);align-items:center;gap:11px;min-width:0;padding:12px 14px;border:1px solid #e1e8f2;border-radius:12px;background:#fff;box-shadow:0 3px 10px rgba(30,41,59,.035)}
.tcts-course-level-icon{display:grid;width:40px;height:40px;place-items:center;overflow:hidden;border:1px solid #e9edf5;border-radius:10px;color:#fff;background:linear-gradient(135deg,#20bdb0,#087e91);font-size:19px}
.tcts-course-level-icon img{display:block;width:100%;height:100%;object-fit:contain;padding:5px;background:#fff}
.tcts-course-level-content{min-width:0}.tcts-course-level-row{display:grid;grid-template-columns:minmax(0,1fr) auto auto;align-items:center;gap:12px;min-width:0}.tcts-course-level-card h3{min-width:0;margin:0;color:#1e293b;font-size:15px;line-height:1.3;overflow-wrap:anywhere}.tcts-course-level-card strong{color:#15273b;font-size:15px;white-space:nowrap}.tcts-course-level-card a{display:inline-flex;align-items:center;gap:5px;min-height:36px;padding:0 11px;border:1px solid #e0dafa;border-radius:8px;color:#4d2ce0!important;background:#f8f6ff;font-size:12px;font-weight:800;white-space:nowrap;text-decoration:none!important}.tcts-course-level-card a:hover{background:#f0ecff}.tcts-course-level-card p{margin:6px 0 0;color:#64748b;font-size:12px;line-height:1.45;overflow-wrap:anywhere}
.tcts-choose-class-button{grid-column:1/-1}
@media(max-width:820px){.tcts-course-level-grid{grid-template-columns:minmax(0,1fr)}}
@media(max-width:520px){.tcts-course-levels{margin:18px 0;padding:16px 12px}.tcts-course-levels>header h2{font-size:20px}.tcts-course-level-card{grid-template-columns:36px minmax(0,1fr);gap:9px;padding:11px}.tcts-course-level-icon{width:35px;height:35px;font-size:16px}.tcts-course-level-row{grid-template-columns:minmax(0,1fr) auto;gap:7px}.tcts-course-level-card h3{font-size:14px}.tcts-course-level-card strong{grid-column:2;grid-row:1;font-size:13px}.tcts-course-level-card a{grid-column:1/-1;justify-self:start;min-height:34px}.tcts-course-level-card p{font-size:11px}}

/* 1.25.0: vivid, responsive parent-course cards with clear actions. */
.tcts-course-level-card{position:relative;overflow:hidden;border-color:#d8defa;background:linear-gradient(115deg,#f1f5ff 0%,#fff 65%);transition:transform .18s ease,box-shadow .18s ease}
.tcts-course-level-card:nth-child(4n+2){background:linear-gradient(115deg,#eafbf7 0%,#fff 65%);border-color:#c9eee3}
.tcts-course-level-card:nth-child(4n+3){background:linear-gradient(115deg,#fff4e8 0%,#fff 65%);border-color:#f7dec1}
.tcts-course-level-card:nth-child(4n+4){background:linear-gradient(115deg,#fbf0ff 0%,#fff 65%);border-color:#ead7f5}
.tcts-course-level-card:hover{transform:translateY(-2px);box-shadow:0 9px 24px rgba(54,69,120,.11)}
.tcts-course-level-icon{box-shadow:0 5px 12px rgba(13,110,115,.18)}
.tcts-course-level-card a{justify-content:center;min-width:112px;color:#fff!important;border-color:#5140d8;background:#5140d8;background:linear-gradient(135deg,#6248ed,#326fe8);box-shadow:0 4px 10px rgba(77,67,210,.2);text-decoration:none!important}
.tcts-course-level-card a:hover,.tcts-course-level-card a:focus{color:#fff!important;background:linear-gradient(135deg,#4f35d8,#245bd1);box-shadow:0 6px 14px rgba(77,67,210,.28)}
.tcts-course-level-card a:focus{outline:3px solid rgba(75,91,226,.3);outline-offset:2px}
@media(max-width:520px){.tcts-course-level-card{transform:none}.tcts-course-level-card a{width:100%;min-height:42px}}