/* MathCourse Front UI v1.1 — light, focused, mobile-first. */
:root {
  --mc-navy: #0d2942;
  --mc-navy-2: #153c5d;
  --mc-blue: #1769e0;
  --mc-blue-soft: #edf5ff;
  --mc-orange: #ff9418;
  --mc-orange-soft: #fff3e3;
  --mc-green: #149b69;
  --mc-bg: #f6f8fb;
  --mc-card: #ffffff;
  --mc-line: #e5eaf0;
  --mc-text: #162235;
  --mc-muted: #748094;
  --mc-radius: 18px;
  --mc-shadow: 0 10px 35px rgba(13, 41, 66, .07);
  --mc-container: 1180px;
}

body.mathcourse-site { margin: 0; background: var(--mc-bg); color: var(--mc-text); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif; }
body.mathcourse-site a { text-decoration: none; }
body.mathcourse-site img { display: block; max-width: 100%; }
body.mathcourse-site .mc-container { width: min(var(--mc-container), calc(100% - 40px)); margin: 0 auto; }

/* Header */
body.mathcourse-site .mc-site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); border-bottom: 1px solid rgba(229,234,240,.9); backdrop-filter: blur(14px); }
body.mathcourse-site .mc-site-header__inner { min-height: 68px; display: flex; align-items: center; gap: 42px; }
body.mathcourse-site .mc-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--mc-navy); font-weight: 800; flex: 0 0 auto; }
body.mathcourse-site .mc-brand__mark { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 11px; background: var(--mc-navy); color: #fff; font-size: 16px; box-shadow: 0 7px 18px rgba(13,41,66,.15); }
body.mathcourse-site .mc-brand__text { font-size: 17px; letter-spacing: -.02em; }
body.mathcourse-site .mc-site-nav { display: flex; align-items: center; gap: 28px; margin: 0; }
body.mathcourse-site .mc-site-nav a { position: relative; padding: 24px 0 22px; color: #617084; font-size: 13px; font-weight: 600; }
body.mathcourse-site .mc-site-nav a:hover, body.mathcourse-site .mc-site-nav a.is-active { color: var(--mc-navy); }
body.mathcourse-site .mc-site-nav a.is-active::after { content: ""; position: absolute; left: 50%; bottom: 14px; width: 16px; height: 3px; border-radius: 99px; background: var(--mc-orange); transform: translateX(-50%); }
body.mathcourse-site .mc-header-actions { display: flex; align-items: center; gap: 10px; margin-left: auto; }
body.mathcourse-site .mc-header-login { padding: 9px 15px; color: var(--mc-navy); font-size: 13px; font-weight: 700; border: 1px solid var(--mc-line); border-radius: 10px; background: #fff; }
body.mathcourse-site .mc-user-pill { display: inline-flex; align-items: center; gap: 7px; padding: 9px 13px; border: 1px solid var(--mc-line); border-radius: 10px; color: var(--mc-navy); background: #fff; font-size: 12px; font-weight: 700; }
body.mathcourse-site .mc-user-pill__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mc-green); }
body.mathcourse-site .mc-user-pill__arrow { color: var(--mc-blue); }

/* Common buttons */
body.mathcourse-site .mc-btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 44px; padding: 0 18px; border-radius: 11px; font-size: 13px; font-weight: 750; box-sizing: border-box; transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
body.mathcourse-site .mc-btn:hover { transform: translateY(-1px); }
body.mathcourse-site .mc-btn--primary { color: #fff; background: var(--mc-blue); box-shadow: 0 9px 22px rgba(23,105,224,.2); }
body.mathcourse-site .mc-btn--ghost { color: var(--mc-navy); background: #fff; border: 1px solid var(--mc-line); }
body.mathcourse-site .mc-btn--dark { color: #fff; background: var(--mc-navy); }

/* Home hero */
body.mathcourse-site .mc-home-hero { overflow: hidden; background: linear-gradient(180deg, #fff 0%, #fbfcfe 100%); border-bottom: 1px solid var(--mc-line); }
body.mathcourse-site .mc-home-hero__inner { min-height: 530px; display: grid; grid-template-columns: minmax(0,1fr) minmax(360px, 500px); gap: 70px; align-items: center; }
body.mathcourse-site .mc-kicker { display: inline-flex; align-items: center; gap: 8px; padding: 7px 11px; border-radius: 99px; color: var(--mc-blue); background: var(--mc-blue-soft); font-size: 11px; font-weight: 750; letter-spacing: .03em; }
body.mathcourse-site .mc-kicker span { width: 6px; height: 6px; border-radius: 50%; background: var(--mc-orange); }
body.mathcourse-site .mc-home-hero h1 { margin: 18px 0 0; color: var(--mc-navy); font-size: clamp(38px, 5vw, 62px); line-height: 1.12; letter-spacing: -.045em; font-weight: 850; }
body.mathcourse-site .mc-home-hero h1 strong { color: var(--mc-blue); font-weight: inherit; }
body.mathcourse-site .mc-home-hero__copy > p { max-width: 520px; margin: 18px 0 0; color: var(--mc-muted); font-size: 16px; line-height: 1.9; }
body.mathcourse-site .mc-home-hero__actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 27px; }
body.mathcourse-site .mc-home-hero__visual { position: relative; min-height: 380px; display: grid; place-items: center; }
body.mathcourse-site .mc-math-card { position: relative; z-index: 2; border-radius: 24px; box-shadow: 0 25px 70px rgba(13,41,66,.15); }
body.mathcourse-site .mc-math-card--main { width: min(390px, 80%); min-height: 245px; padding: 32px; box-sizing: border-box; display: flex; flex-direction: column; justify-content: space-between; color: #fff; background: linear-gradient(145deg, var(--mc-navy), #1a527c); transform: rotate(-4deg); }
body.mathcourse-site .mc-math-card__label { font-size: 11px; letter-spacing: .2em; opacity: .65; font-weight: 800; }
body.mathcourse-site .mc-math-card__formula { margin-top: auto; font-size: clamp(24px, 4vw, 34px); font-weight: 750; letter-spacing: -.04em; }
body.mathcourse-site .mc-math-card__line { width: 60px; height: 4px; margin: 17px 0 11px; border-radius: 99px; background: var(--mc-orange); }
body.mathcourse-site .mc-math-card__small { font-size: 12px; opacity: .75; }
body.mathcourse-site .mc-math-card--float { position: absolute; right: 2%; top: 34px; z-index: 3; padding: 18px 22px; color: var(--mc-navy); background: #fff; font-size: 14px; line-height: 1.7; transform: rotate(7deg); }
body.mathcourse-site .mc-math-card--float b { color: var(--mc-blue); }
body.mathcourse-site .mc-math-orbit { position: absolute; border: 1px solid #dbe8f7; border-radius: 50%; }
body.mathcourse-site .mc-math-orbit--one { width: 430px; height: 430px; }
body.mathcourse-site .mc-math-orbit--two { width: 330px; height: 330px; border-color: #f4dfc3; }

/* Home sections */
body.mathcourse-site .mc-home-types, body.mathcourse-site .mc-home-courses { padding: 78px 0; }
body.mathcourse-site .mc-section-heading { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 25px; }
body.mathcourse-site .mc-section-heading__eyebrow { display: block; margin-bottom: 8px; color: var(--mc-orange); font-size: 10px; font-weight: 850; letter-spacing: .16em; }
body.mathcourse-site .mc-section-heading h2 { margin: 0; color: var(--mc-navy); font-size: 28px; line-height: 1.25; letter-spacing: -.035em; }
body.mathcourse-site .mc-section-heading p { margin: 0; color: var(--mc-muted); font-size: 13px; }
body.mathcourse-site .mc-section-heading--courses > a { color: var(--mc-blue); font-size: 13px; font-weight: 750; }
body.mathcourse-site .mc-type-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 18px; }
body.mathcourse-site .mc-type-card { position: relative; min-height: 255px; padding: 26px 28px; box-sizing: border-box; display: flex; flex-direction: column; justify-content: space-between; border-radius: var(--mc-radius); overflow: hidden; border: 1px solid var(--mc-line); background: #fff; box-shadow: var(--mc-shadow); transition: transform .2s ease, box-shadow .2s ease; }
body.mathcourse-site .mc-type-card:hover { transform: translateY(-4px); box-shadow: 0 18px 45px rgba(13,41,66,.11); }
body.mathcourse-site .mc-type-card::after { content: ""; position: absolute; width: 170px; height: 170px; right: -70px; bottom: -70px; border-radius: 50%; background: var(--mc-blue-soft); }
body.mathcourse-site .mc-type-card--book::after { background: var(--mc-orange-soft); }
body.mathcourse-site .mc-type-card__top { display: flex; justify-content: space-between; align-items: center; position: relative; z-index: 2; }
body.mathcourse-site .mc-type-card__icon { width: 39px; height: 39px; display: grid; place-items: center; border-radius: 11px; color: var(--mc-blue); background: var(--mc-blue-soft); font-size: 11px; font-weight: 850; }
body.mathcourse-site .mc-type-card--book .mc-type-card__icon { color: #d87500; background: var(--mc-orange-soft); }
body.mathcourse-site .mc-type-card__arrow { color: #91a0b3; font-size: 20px; }
body.mathcourse-site .mc-type-card__tag { color: var(--mc-blue); font-size: 11px; font-weight: 850; }
body.mathcourse-site .mc-type-card--book .mc-type-card__tag { color: #d87500; }
body.mathcourse-site .mc-type-card h3 { margin: 8px 0 9px; color: var(--mc-navy); font-size: 23px; line-height: 1.35; letter-spacing: -.03em; }
body.mathcourse-site .mc-type-card p { max-width: 500px; margin: 0; color: var(--mc-muted); font-size: 13px; line-height: 1.75; }

/* Course directory cards */
body.mathcourse-site .mathcourse-center { width: 100%; }
body.mathcourse-site .mc-course-filter { display: inline-flex; gap: 4px; margin: 0 0 13px; padding: 4px; background: #fff; border: 1px solid var(--mc-line); border-radius: 12px; box-shadow: 0 4px 15px rgba(13,41,66,.04); }
body.mathcourse-site .mc-course-filter a { padding: 8px 15px; border-radius: 9px; color: var(--mc-muted); font-size: 12px; font-weight: 700; }
body.mathcourse-site .mc-course-filter a:hover, body.mathcourse-site .mc-course-filter a.is-active { color: var(--mc-blue); background: var(--mc-blue-soft); }
body.mathcourse-site .mc-course-grade-filter { display: flex; flex-wrap: wrap; align-items: center; gap: 5px; margin: 0 0 22px; }
body.mathcourse-site .mc-course-grade-filter > span { margin-right: 5px; color: #99a4b3; font-size: 11px; }
body.mathcourse-site .mc-course-grade-filter a { padding: 5px 9px; border-radius: 7px; color: var(--mc-muted); font-size: 11px; }
body.mathcourse-site .mc-course-grade-filter a:hover, body.mathcourse-site .mc-course-grade-filter a.is-active { color: var(--mc-navy); background: #e9eef4; font-weight: 750; }
body.mathcourse-site .mathcourse-center__grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
body.mathcourse-site .mathcourse-center__card { overflow: hidden; border: 1px solid var(--mc-line); border-radius: var(--mc-radius); background: #fff; box-shadow: var(--mc-shadow); transition: transform .2s ease, box-shadow .2s ease; }
body.mathcourse-site .mathcourse-center__card:hover { transform: translateY(-4px); box-shadow: 0 18px 42px rgba(13,41,66,.11); }
body.mathcourse-site .mathcourse-center__cover { position: relative; display: block; aspect-ratio: 16/9; overflow: hidden; background: linear-gradient(135deg,#eaf2fb,#dfeaf6); }
body.mathcourse-site .mathcourse-center__cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .35s ease; }
body.mathcourse-site .mathcourse-center__card:hover .mathcourse-center__cover img { transform: scale(1.025); }
body.mathcourse-site .mathcourse-center__cover-placeholder { height: 100%; display: grid; place-items: center; color: #7890a6; font-size: 14px; font-weight: 750; }
body.mathcourse-site .mathcourse-center__body { padding: 17px 18px 18px; }
body.mathcourse-site .mathcourse-center__meta { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 9px; }
body.mathcourse-site .mathcourse-center__meta span { padding: 4px 7px; border-radius: 6px; color: var(--mc-blue); background: var(--mc-blue-soft); font-size: 10px; font-weight: 750; }
body.mathcourse-site .mathcourse-center__meta span + span { color: #b66a09; background: var(--mc-orange-soft); }
body.mathcourse-site .mathcourse-center__title { min-height: 45px; margin: 0; color: var(--mc-navy); font-size: 16px; line-height: 1.45; letter-spacing: -.02em; }
body.mathcourse-site .mathcourse-center__button { display: flex; align-items: center; justify-content: space-between; margin-top: 15px; padding: 10px 12px; border-radius: 9px; color: var(--mc-blue); background: #f7faff; font-size: 12px; font-weight: 800; }

/* Configurable no-image course covers */
body.mathcourse-site .mathcourse-cover { position: relative; width: 100%; height: 100%; min-height: 100%; display: flex; align-items: flex-end; overflow: hidden; box-sizing: border-box; padding: 24px; color: #fff; isolation: isolate; }
body.mathcourse-site .mathcourse-cover::before { content: ""; position: absolute; inset: 0; z-index: -2; background: var(--mc-cover-color, #1769e0); }
body.mathcourse-site .mathcourse-cover::after { content: "∑"; position: absolute; right: -8px; bottom: -34px; z-index: -1; color: rgba(255,255,255,.13); font-size: 150px; line-height: 1; font-weight: 900; transform: rotate(-10deg); }
body.mathcourse-site .mathcourse-cover--solid::after { content: ""; width: 170px; height: 170px; right: -70px; bottom: -70px; border-radius: 50%; background: rgba(255,255,255,.12); }
body.mathcourse-site .mathcourse-cover--gradient::before { background: linear-gradient(135deg, var(--mc-cover-color, #1769e0), rgba(13,41,66,.92)); }
body.mathcourse-site .mathcourse-cover--soft::before { background: linear-gradient(135deg, color-mix(in srgb, var(--mc-cover-color, #1769e0) 72%, #fff), var(--mc-cover-color, #1769e0)); }
body.mathcourse-site .mathcourse-cover__content { position: relative; z-index: 2; max-width: 86%; }
body.mathcourse-site .mathcourse-cover__eyebrow { display: block; margin-bottom: 7px; font-size: 10px; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; opacity: .78; }
body.mathcourse-site .mathcourse-cover__text { margin: 0; font-size: clamp(19px, 2.2vw, 28px); line-height: 1.22; font-weight: 850; letter-spacing: -.035em; text-wrap: balance; }
body.mathcourse-site .mathcourse-cover__formula { position: absolute; top: 20px; right: 22px; font-size: 30px; font-weight: 800; opacity: .78; }
body.mathcourse-site .mathcourse-learning-center__cover .mathcourse-cover { padding: 18px; }
body.mathcourse-site .mathcourse-learning-center__cover .mathcourse-cover__text { font-size: 17px; }

/* Learning center */
body.mathcourse-site .mc-learning-center-page { padding: 46px 0 80px; }
body.mathcourse-site .mc-learning-center-page__container { width: min(1000px, calc(100% - 40px)); margin: 0 auto; }
body.mathcourse-site .mathcourse-learning-center__heading { margin-bottom: 22px; }
body.mathcourse-site .mathcourse-learning-center__heading h1 { margin: 0; color: var(--mc-navy); font-size: 31px; letter-spacing: -.04em; }
body.mathcourse-site .mathcourse-learning-center__heading p { margin: 7px 0 0; color: var(--mc-muted); font-size: 13px; }
body.mathcourse-site .mathcourse-learning-center__grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 15px; }
body.mathcourse-site .mathcourse-learning-center__card { display: grid; grid-template-columns: 155px minmax(0,1fr); overflow: hidden; border: 1px solid var(--mc-line); border-radius: 15px; background: #fff; box-shadow: var(--mc-shadow); }
body.mathcourse-site .mathcourse-learning-center__cover { min-height: 150px; display: grid; place-items: center; overflow: hidden; background: #edf3fa; color: #7b8da2; font-size: 11px; }
body.mathcourse-site .mathcourse-learning-center__cover img { width: 100%; height: 100%; object-fit: cover; }
body.mathcourse-site .mathcourse-learning-center__body { padding: 17px; }
body.mathcourse-site .mathcourse-learning-center__body h2 { margin: 0 0 16px; color: var(--mc-navy); font-size: 15px; line-height: 1.45; }
body.mathcourse-site .mathcourse-learning-center__progress-row { display: flex; align-items: center; gap: 6px; margin-bottom: 7px; color: var(--mc-muted); font-size: 10px; }
body.mathcourse-site .mathcourse-learning-center__progress-row strong { margin-left: auto; color: var(--mc-navy); }
body.mathcourse-site .mathcourse-learning-center__progress-row em { color: var(--mc-blue); font-style: normal; font-weight: 800; }
body.mathcourse-site .mathcourse-learning-center__progress-track { height: 6px; overflow: hidden; border-radius: 99px; background: #edf0f4; }
body.mathcourse-site .mathcourse-learning-center__progress-track span { display: block; height: 100%; border-radius: inherit; background: var(--mc-blue); }
body.mathcourse-site .mathcourse-learning-center__button { display: flex; align-items: center; justify-content: space-between; margin-top: 15px; padding: 9px 10px; border-radius: 8px; color: var(--mc-blue); background: var(--mc-blue-soft); font-size: 11px; font-weight: 800; }
body.mathcourse-site .mathcourse-learning-center__empty, body.mathcourse-site .mathcourse-learning-center__login { padding: 55px 20px; text-align: center; border: 1px dashed #ccd5df; border-radius: 15px; background: #fff; }
body.mathcourse-site .mathcourse-learning-center__empty strong, body.mathcourse-site .mathcourse-learning-center__login strong, body.mathcourse-site .mathcourse-learning-center__empty span, body.mathcourse-site .mathcourse-learning-center__login span { display: block; }
body.mathcourse-site .mathcourse-learning-center__empty strong, body.mathcourse-site .mathcourse-learning-center__login strong { margin-bottom: 6px; color: var(--mc-navy); font-size: 15px; }
body.mathcourse-site .mathcourse-learning-center__empty span, body.mathcourse-site .mathcourse-learning-center__login span { color: var(--mc-muted); font-size: 12px; }

/* Learning page shell */
body.mathcourse-site .mc-learning-page { padding: 20px 0 65px; }
body.mathcourse-site .mc-learning-container { width: min(1180px, calc(100% - 40px)); margin: 0 auto; display: grid; grid-template-columns: minmax(0,1fr) 315px; gap: 16px; align-items: start; }
body.mathcourse-site .mc-video-card { overflow: hidden; border-radius: 14px; background: #070b10; box-shadow: 0 15px 40px rgba(0,0,0,.17); }
body.mathcourse-site .mc-video-box { aspect-ratio: 16/9; }
body.mathcourse-site .mc-lesson-card { padding: 17px 19px; border: 1px solid var(--mc-line); border-radius: 13px; background: #fff; }
body.mathcourse-site .mc-lesson-header h1 { margin: 0; color: var(--mc-navy); font-size: 18px; line-height: 1.5; }
body.mathcourse-site .mc-outline-card { overflow: hidden; border: 1px solid var(--mc-line); border-radius: 14px; background: #fff; box-shadow: 0 5px 20px rgba(13,41,66,.05); }
body.mathcourse-site .mc-outline-card h2 { margin: 0; padding: 15px 16px; border-bottom: 1px solid var(--mc-line); color: var(--mc-navy); font-size: 14px; }

/* Responsive */
@media (max-width: 980px) {
  body.mathcourse-site .mc-site-header__inner { gap: 24px; }
  body.mathcourse-site .mc-site-nav { gap: 18px; }
  body.mathcourse-site .mc-home-hero__inner { grid-template-columns: minmax(0,1fr) 360px; gap: 35px; }
  body.mathcourse-site .mc-home-hero__visual { min-height: 320px; }
  body.mathcourse-site .mathcourse-center__grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  body.mathcourse-site .mc-learning-container { grid-template-columns: 1fr; }
  body.mathcourse-site .mc-outline-card { grid-column: 1; }
}

@media (max-width: 700px) {
  body.mathcourse-site .mc-container { width: calc(100% - 24px); }
  body.mathcourse-site .mc-site-header__inner { min-height: 58px; gap: 0; }
  body.mathcourse-site .mc-brand__mark { width: 32px; height: 32px; border-radius: 9px; }
  body.mathcourse-site .mc-brand__text { font-size: 15px; }
  body.mathcourse-site .mc-site-nav { display: none; }
  body.mathcourse-site .mc-header-login { padding: 8px 12px; }
  body.mathcourse-site .mc-home-hero__inner { display: block; min-height: 0; padding: 54px 0 48px; }
  body.mathcourse-site .mc-home-hero h1 { margin-top: 15px; font-size: 40px; }
  body.mathcourse-site .mc-home-hero__copy > p { font-size: 14px; line-height: 1.8; }
  body.mathcourse-site .mc-home-hero__visual { min-height: 255px; margin-top: 28px; }
  body.mathcourse-site .mc-math-card--main { min-height: 185px; padding: 23px; }
  body.mathcourse-site .mc-math-card--float { top: 12px; right: 1%; padding: 13px 16px; font-size: 11px; }
  body.mathcourse-site .mc-math-orbit--one { width: 290px; height: 290px; }
  body.mathcourse-site .mc-math-orbit--two { width: 225px; height: 225px; }
  body.mathcourse-site .mc-home-types, body.mathcourse-site .mc-home-courses { padding: 54px 0; }
  body.mathcourse-site .mc-section-heading { align-items: flex-start; flex-direction: column; gap: 8px; margin-bottom: 19px; }
  body.mathcourse-site .mc-section-heading h2 { font-size: 24px; }
  body.mathcourse-site .mc-type-grid { grid-template-columns: 1fr; gap: 12px; }
  body.mathcourse-site .mc-type-card { min-height: 215px; padding: 22px; }
  body.mathcourse-site .mc-type-card h3 { font-size: 20px; }
  body.mathcourse-site .mathcourse-center__grid { grid-template-columns: 1fr; gap: 12px; }
  body.mathcourse-site .mc-course-filter { width: 100%; box-sizing: border-box; }
  body.mathcourse-site .mc-course-filter a { flex: 1; text-align: center; padding-left: 8px; padding-right: 8px; }
  body.mathcourse-site .mc-page, body.mathcourse-site .mc-learning-center-page { padding: 30px 0 55px; }
  body.mathcourse-site .mathcourse-directory__header { display: block; }
  body.mathcourse-site .mathcourse-directory__continue { margin-top: 10px; }
  body.mathcourse-site .mathcourse-directory__heading { padding: 18px; }
  body.mathcourse-site .mathcourse-directory__heading h1 { font-size: 21px; }
  body.mathcourse-site .mathcourse-directory__notice { display: block; }
  body.mathcourse-site .mathcourse-directory__notice span { display: block; margin-top: 3px; }
  body.mathcourse-site .mc-learning-center-page__container { width: calc(100% - 24px); }
  body.mathcourse-site .mathcourse-learning-center__heading h1 { font-size: 27px; }
  body.mathcourse-site .mathcourse-learning-center__grid { grid-template-columns: 1fr; }
  body.mathcourse-site .mathcourse-learning-center__card { grid-template-columns: 110px minmax(0,1fr); }
  body.mathcourse-site .mathcourse-learning-center__cover { min-height: 125px; }
  body.mathcourse-site .mathcourse-learning-center__cover .mathcourse-cover { padding: 14px; }
  body.mathcourse-site .mathcourse-learning-center__cover .mathcourse-cover__text { font-size: 14px; }
  body.mathcourse-site .mc-learning-page { padding-top: 8px; }
  body.mathcourse-site .mc-learning-container { width: 100%; gap: 10px; }
  body.mathcourse-site .mc-video-card { border-radius: 0; }
  body.mathcourse-site .mc-lesson-card { border-radius: 10px; margin: 0 12px; padding: 14px; }
  body.mathcourse-site .mc-outline-card { border-radius: 10px; margin: 0 12px; }
}