:root {
  --ink: #182234; --muted: #7b8494; --line: #e9ecf1; --paper: #fbfbfd; --white: #fff;
  --purple: #6c5ce7; --purple-dark: #5545cc; --lavender: #f0edff; --mint: #e2f7ef;
  --shadow: 0 12px 32px rgba(25, 33, 53, .045); --radius: 18px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "DM Sans", sans-serif; font-size: 14px; }
button, input, select { font: inherit; }
button { cursor: pointer; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 3px solid #b9b1ff; outline-offset: 2px; }
a { color: inherit; }
.app-shell { min-height: 100vh; }
.sidebar { width: 248px; position: fixed; inset: 0 auto 0 0; padding: 29px 17px 16px; background: #fff; border-right: 1px solid var(--line); display: flex; flex-direction: column; z-index: 20; }
.brand { display: flex; align-items: center; gap: 10px; padding: 0 12px; color: #1d2537; text-decoration: none; font: 800 21px Manrope, sans-serif; letter-spacing: -1px; }
.brand-light { color: #7d8492; font-weight: 500; }
.brand-mark { width: 27px; height: 27px; border-radius: 9px; background: var(--purple); display: inline-flex; align-items: end; justify-content: center; gap: 2px; padding: 6px; transform: rotate(-5deg); }
.brand-mark span { display: block; width: 3px; background: white; border-radius: 3px; }
.brand-mark span:nth-child(1) { height: 8px; opacity: .7; }.brand-mark span:nth-child(2) { height: 14px; }.brand-mark span:nth-child(3) { height: 10px; opacity: .85; }
.workspace-label, .eyebrow { font-size: 9px; font-weight: 700; letter-spacing: 1.5px; color: #9299a8; }
.workspace-label { margin: 49px 12px 15px; }
.main-nav { display: grid; gap: 5px; }
.nav-item { border: 0; border-radius: 10px; background: transparent; padding: 12px 13px; display: flex; align-items: center; gap: 13px; color: #7c8493; font-weight: 600; text-align: left; width: 100%; transition: .18s ease; }
.nav-item:hover { background: #f7f6ff; color: var(--purple); }
.nav-item.active { background: #f0edff; color: var(--purple); }
.nav-icon { font-size: 20px; width: 18px; text-align: center; font-weight: 400; }
.nav-count { margin-left: auto; background: #e4dfff; color: var(--purple-dark); border-radius: 7px; font-size: 10px; padding: 3px 7px; }
.sidebar-bottom { margin-top: auto; }
.help-card { background: #f7f5ff; border-radius: 13px; padding: 15px 14px 14px; margin: 0 3px 18px; }
.help-spark { color: var(--purple); font-size: 19px; margin-bottom: 9px; }
.help-card strong { font: 700 12px Manrope, sans-serif; }
.help-card p { color: #82899a; font-size: 11px; line-height: 1.6; margin: 7px 0 0; }
.profile-mini { display: flex; align-items: center; gap: 9px; border-top: 1px solid var(--line); padding: 16px 4px 0; margin-top: 13px; }
.avatar, .top-avatar { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: #d8d1ff; color: #5545cc; font-weight: 700; flex: 0 0 auto; }
.profile-copy { min-width: 0; display: grid; gap: 4px; flex: 1; }
.profile-copy strong { font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.profile-copy span { color: #969cab; font-size: 10px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.icon-button { border: 0; background: transparent; color: #8a91a0; border-radius: 9px; padding: 7px 9px; font-size: 19px; }
.icon-button:hover { background: #f4f2ff; color: var(--purple); }
.main-content { margin-left: 248px; min-height: 100vh; padding: 0 43px 70px; max-width: 1800px; }
.topbar { height: 77px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; margin-bottom: 35px; }
.breadcrumb { color: #9aa1ae; font-size: 11px; }.breadcrumb span { margin: 0 9px; color: #d1d4dc; }.breadcrumb strong { color: #4a5363; font-weight: 600; }
.topbar-actions { display: flex; align-items: center; gap: 15px; }
.status-pill { display: flex; align-items: center; gap: 7px; padding: 7px 10px; border: 1px solid #e9eaf0; border-radius: 20px; color: #737c8b; font-size: 10px; background: white; }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #e4a34c; display: inline-block; }.status-dot.connected { background: #37b88b; }
.notification-button { position: relative; font-size: 20px; }.notification-button i { position: absolute; width: 5px; height: 5px; background: #ef8c79; border: 1px solid white; border-radius: 50%; right: 7px; top: 7px; }
.top-avatar { border: 0; width: 32px; height: 32px; }
.mobile-menu { display: none; }
.page-view { display: none; animation: fade-in .28s ease; }.page-view.active { display: block; }
@keyframes fade-in { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }
.welcome-row { min-height: 218px; position: relative; display: flex; align-items: center; overflow: hidden; background: linear-gradient(112deg, #f4f1ff 0%, #f8f6ff 56%, #f2f0ff 100%); border-radius: 19px; padding: 33px 38px; }
.eyebrow { display: flex; align-items: center; gap: 8px; }.eyebrow-line { width: 17px; height: 2px; background: var(--purple); display: inline-block; }
h1, h2, h3, p { margin-top: 0; }
h1 { font: 800 clamp(27px, 3vw, 38px)/1.2 Manrope, sans-serif; letter-spacing: -1.5px; margin: 16px 0 11px; }
h1 span { color: var(--purple); }
.intro { color: #82899a; line-height: 1.75; font-size: 12px; max-width: 490px; margin-bottom: 0; }
.welcome-art { position: absolute; right: 4%; top: 0; width: 265px; height: 100%; }
.art-orbit { position: absolute; border: 1px solid rgba(108,92,231,.13); border-radius: 50%; width: 195px; height: 195px; top: 15px; right: 15px; }
.orbit-two { width: 145px; height: 145px; top: 40px; right: 40px; }
.art-sun { position: absolute; width: 100px; height: 100px; background: linear-gradient(145deg, #d8d0ff, #a79aff); border-radius: 30px; transform: rotate(19deg); top: 57px; right: 64px; box-shadow: 0 16px 40px #9f94ec45; }
.art-card { position: absolute; top: 62px; right: 8px; width: 91px; height: 89px; border-radius: 12px; background: #fff; box-shadow: 0 10px 28px #7163b528; transform: rotate(7deg); padding: 13px; display: flex; flex-direction: column; gap: 5px; font: 700 12px/1.3 Manrope; }
.art-card span { color: #f3a875; font-size: 17px; }
.art-leaf { position: absolute; background: #a7dfcf; width: 27px; height: 58px; border-radius: 100% 0 100% 0; transform: rotate(35deg); top: 24px; right: 162px; }.leaf-two { top: 139px; right: 35px; transform: rotate(65deg); background: #f2bba5; width: 22px; height: 43px; }
.stats-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 17px; margin: 23px 0 35px; }
.stat-card { border: 1px solid var(--line); background: white; border-radius: 14px; padding: 18px 19px 16px; min-height: 125px; }
.stat-top { display: flex; align-items: center; justify-content: space-between; color: #7e8795; font-size: 11px; }
.stat-icon { width: 29px; height: 29px; display: grid; place-items: center; border-radius: 9px; font-size: 14px; }.lavender { background: #f0edff; color: #7565e5; }.mint { background: #e2f7ef; color: #3eaf8b; }.peach { background: #fff0e8; color: #d98a64; }
.stat-number { font: 800 27px Manrope; letter-spacing: -1px; margin: 12px 0 8px; }.stat-number small { font-size: 11px; color: #9aa1ae; font-weight: 500; letter-spacing: 0; }
.stat-foot { color: #9aa1ae; display: flex; align-items: center; gap: 8px; font-size: 10px; }.positive { color: #43ad8c; }
.mini-bars { display: flex; align-items: end; gap: 2px; height: 12px; }.mini-bars i { width: 3px; background: #b5aaff; border-radius: 2px; height: 5px; }.mini-bars i:nth-child(2) { height: 8px; }.mini-bars i:nth-child(3) { height: 6px; }.mini-bars i:nth-child(4) { height: 11px; }.mini-bars i:nth-child(5) { height: 8px; }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 15px; margin: 0 0 17px; }.section-heading h2, .page-title-row h1 { font: 800 21px Manrope; letter-spacing: -.8px; margin: 7px 0 0; }.text-button { border: 0; background: none; color: var(--purple); font-weight: 700; font-size: 11px; padding: 8px 0; }.text-button span { margin-left: 5px; }.explore-heading { margin-top: 37px; }
.course-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.course-card { background: white; border: 1px solid var(--line); border-radius: 15px; overflow: hidden; min-width: 0; transition: transform .2s, box-shadow .2s; }.course-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.course-cover { border: 0; display: block; position: relative; width: 100%; height: 139px; overflow: hidden; text-align: left; padding: 16px; color: #453c85; background: #e8e3ff; }
.course-cover.orange { background: #ffeadb; color: #9e6448; }.course-cover.blue { background: #dceeff; color: #456a96; }.course-cover.green { background: #ddf3e9; color: #367c65; }.course-cover.pink { background: #f9e3ed; color: #985c79; }.course-cover.yellow { background: #f8efce; color: #89722c; }
.cover-kicker { position: relative; z-index: 2; font-size: 9px; font-weight: 700; letter-spacing: .4px; }.cover-duration { position: absolute; bottom: 12px; right: 12px; z-index: 2; font-size: 9px; background: #ffffffc9; border-radius: 6px; padding: 5px 7px; color: #626b7c; }
.cover-graphic { position: absolute; width: 105px; height: 105px; border: 1px solid currentColor; border-radius: 50%; right: 23px; top: 31px; opacity: .35; }.cover-graphic i { position: absolute; display: block; border: 1px solid currentColor; border-radius: 50%; inset: 13px; }.cover-graphic i:nth-child(2) { inset: 28px; }.cover-graphic i:nth-child(3) { width: 12px; height: 12px; border: 0; background: currentColor; top: 5px; left: 20px; }
.graphic-orange { border-radius: 22px; transform: rotate(25deg); }.graphic-blue { border-radius: 18px; transform: rotate(45deg); }.graphic-green { border-radius: 50% 15% 50% 15%; transform: rotate(-25deg); }.graphic-pink { border-radius: 18px; transform: rotate(-20deg); }.graphic-yellow { border-radius: 50%; transform: rotate(10deg); }
.cover-play { position: absolute; width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: #ffffffbd; color: currentColor; font-size: 10px; left: 16px; bottom: 17px; }
.course-card-body { padding: 15px 15px 14px; }.creator-row { display: flex; align-items: center; gap: 7px; color: #939baa; font-size: 9px; }.creator-avatar { width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; font-size: 8px; font-weight: 800; color: #6c5ce7; background: #f0edff; }.creator-avatar.orange { background: #ffeadb; color: #9e6448; }.creator-avatar.blue { background: #dceeff; color: #456a96; }.creator-avatar.green { background: #ddf3e9; color: #367c65; }.creator-avatar.pink { background: #f9e3ed; color: #985c79; }.creator-avatar.yellow { background: #f8efce; color: #89722c; }.creator-check { color: #55b89a; margin-left: -3px; }
.course-title-button { display: block; border: 0; background: none; padding: 0; margin: 12px 0 6px; font: 700 13px Manrope; text-align: left; color: var(--ink); }.course-title-button:hover { color: var(--purple); }
.course-description { color: #8c94a2; font-size: 10px; line-height: 1.65; min-height: 34px; margin-bottom: 13px; }
.card-bottom, .progress-meta { display: flex; align-items: center; justify-content: space-between; color: #939baa; font-size: 9px; margin: 13px 0 8px; }.progress-meta strong { color: var(--purple); font-size: 10px; }.progress-track { height: 4px; background: #f0eff7; border-radius: 8px; overflow: hidden; }.progress-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #8b7cf1, #6c5ce7); }
.card-actions { display: flex; align-items: center; gap: 8px; margin-top: 14px; }.secondary-button { border: 1px solid #e7e8ef; background: white; border-radius: 8px; padding: 10px 13px; color: #5f6878; font-size: 10px; font-weight: 700; transition: .18s; }.secondary-button:hover { border-color: #c9c1ff; color: var(--purple); background: #fbfaff; }.secondary-button.small { padding: 8px 10px; font-size: 9px; }.secondary-button span { margin-left: 4px; }
.bookmark-button { border: 1px solid #e7e8ef; background: white; color: #8c93a1; border-radius: 8px; width: 30px; height: 30px; font-size: 18px; margin-left: auto; }.bookmark-button:hover { color: var(--purple); border-color: #c9c1ff; }
.page-title-row { margin: 16px 0 26px; }.page-title-row h1 { font-size: 31px; margin: 10px 0; }.filters-row { display: flex; gap: 12px; margin-bottom: 22px; }.search-box { display: flex; align-items: center; gap: 9px; background: white; border: 1px solid var(--line); border-radius: 10px; padding: 0 12px; flex: 1; max-width: 470px; color: #9ba1ae; }.search-box input { border: 0; outline: 0; width: 100%; padding: 12px 0; background: transparent; font-size: 11px; }.filters-row select { background: white; border: 1px solid var(--line); border-radius: 10px; padding: 0 14px; color: #6c7483; font-size: 11px; }
.assignment-list { display: grid; gap: 12px; }.assignment-card { display: flex; align-items: start; gap: 15px; background: white; border: 1px solid var(--line); border-radius: 14px; padding: 19px; }.assignment-symbol { width: 42px; height: 42px; flex: 0 0 auto; border-radius: 12px; display: grid; place-items: center; font-size: 18px; }.assignment-main { flex: 1; min-width: 0; }.assignment-meta { color: #969dac; font-size: 9px; margin-bottom: 7px; }.assignment-meta span { margin: 0 5px; }.assignment-main h3 { font: 700 13px Manrope; margin-bottom: 7px; }.assignment-main p { color: #8991a0; font-size: 11px; line-height: 1.65; margin-bottom: 10px; }.assignment-due { color: #a0a6b2; font-size: 10px; }.assignment-side { display: grid; justify-items: end; gap: 12px; }.assignment-status { color: #d18a5c; background: #fff2e8; border-radius: 20px; padding: 6px 9px; font-size: 9px; white-space: nowrap; }.assignment-status.done { color: #309a77; background: #e4f8ef; }.submission-link { display: inline-block; color: var(--purple); font-size: 10px; margin-top: 9px; text-decoration: none; }
.settings-card { background: white; border: 1px solid var(--line); border-radius: 15px; padding: 23px; max-width: 800px; margin-bottom: 16px; }.settings-card h3 { font: 700 14px Manrope; margin-bottom: 8px; }.settings-card p { color: #828a99; font-size: 12px; line-height: 1.7; }.settings-card code { background: #f5f3ff; color: #6655d5; padding: 2px 4px; border-radius: 4px; }.settings-actions { display: flex; gap: 9px; }.config-state { color: #9a7a44; font-size: 11px; display: flex; gap: 8px; align-items: center; }
.course-detail-hero { display: flex; justify-content: space-between; gap: 20px; align-items: center; background: #f0edff; border-radius: 18px; padding: 35px; }.course-detail-hero.orange { background: #ffeadb; }.course-detail-hero.blue { background: #dceeff; }.course-detail-hero.green { background: #ddf3e9; }.course-detail-hero.pink { background: #f9e3ed; }.course-detail-hero.yellow { background: #f8efce; }.course-detail-hero h1 { font-size: 31px; max-width: 600px; }.course-detail-hero p { max-width: 570px; color: #777f8f; line-height: 1.7; font-size: 12px; }.detail-meta { display: flex; gap: 17px; color: #727b8c; font-size: 10px; margin: 17px 0 20px; }.primary-button { border: 0; border-radius: 9px; padding: 12px 16px; color: white; background: var(--purple); font-size: 11px; font-weight: 700; box-shadow: 0 5px 14px #6c5ce72c; transition: .18s; }.primary-button:hover { background: var(--purple-dark); transform: translateY(-1px); }.primary-button:disabled { opacity: .65; cursor: default; transform: none; }.detail-abstract { display: grid; justify-items: center; gap: 10px; min-width: 130px; }.abstract-ring { width: 94px; height: 94px; border: 7px solid #ffffffa0; border-right-color: #8b7cf1; border-top-color: #8b7cf1; border-radius: 50%; display: grid; place-items: center; transform: rotate(35deg); }.abstract-ring span { transform: rotate(-35deg); font: 800 18px Manrope; }.detail-abstract small { color: #83889b; font-size: 8px; letter-spacing: 1px; }
.detail-columns { display: grid; grid-template-columns: minmax(0, 1.8fr) minmax(220px, .9fr); gap: 30px; margin-top: 30px; }.compact { margin-bottom: 14px; }.compact h2 { font-size: 19px; }.curriculum-list { display: grid; gap: 8px; }.curriculum-item { display: flex; align-items: center; gap: 13px; width: 100%; padding: 14px; border: 1px solid var(--line); background: white; border-radius: 11px; text-align: left; }.curriculum-item:hover { border-color: #c9c1ff; background: #fdfcff; }.lesson-number { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: #f2f1f7; color: #858c9b; font-size: 10px; flex: 0 0 auto; }.lesson-number.completed { color: #279b76; background: #e2f7ef; }.curriculum-copy { flex: 1; display: grid; gap: 5px; }.curriculum-copy strong { font-size: 11px; }.curriculum-copy small { color: #969dac; font-size: 9px; line-height: 1.5; }.curriculum-play { color: var(--purple); font-size: 11px; }.detail-sidebar { border: 1px solid var(--line); border-radius: 13px; background: white; padding: 20px; align-self: start; }.detail-sidebar h3 { font: 700 13px Manrope; }.detail-sidebar ul { list-style: none; padding: 0; margin: 18px 0; display: grid; gap: 13px; }.detail-sidebar li { color: #7e8795; font-size: 10px; line-height: 1.5; }.detail-sidebar li::before { content: "✓"; color: #43b18c; margin-right: 9px; font-weight: 700; }.note-card { display: flex; gap: 10px; background: #f6f3ff; border-radius: 10px; padding: 12px; }.note-card span { color: var(--purple); }.note-card p { color: #7f779e; font-size: 10px; line-height: 1.6; margin: 0; }
.back-button { border: 0; background: none; color: #777f90; padding: 0; margin: 0 0 18px; font-size: 11px; }.back-button:hover { color: var(--purple); }
.empty-state { text-align: center; padding: 50px 20px; border: 1px dashed #dcd9ed; background: white; border-radius: 15px; grid-column: 1/-1; }.empty-state h3 { font: 700 16px Manrope; }.empty-state p { color: #8991a0; font-size: 11px; line-height: 1.7; }.empty-icon { font-size: 30px; color: var(--purple); margin-bottom: 12px; }.hidden { display: none !important; }
.modal { width: min(440px, calc(100% - 28px)); border: 1px solid #e9eaf1; border-radius: 20px; padding: 30px; color: var(--ink); box-shadow: 0 25px 80px #1d23402b; }.modal::backdrop { background: #141b2c80; backdrop-filter: blur(5px); }.modal-close-row { display: flex; justify-content: end; margin: -17px -15px 12px; }.modal-brand { display: flex; align-items: center; gap: 7px; font: 800 18px Manrope; letter-spacing: -1px; margin-bottom: 28px; }.modal-brand .brand-mark { width: 23px; height: 23px; }.modal h2 { font: 800 24px/1.25 Manrope; letter-spacing: -1px; margin: 12px 0 8px; }.modal-description { color: #858d9b; font-size: 11px; line-height: 1.7; margin-bottom: 20px; }.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 4px; background: #f5f4fa; border-radius: 9px; padding: 4px; margin-bottom: 18px; }.auth-tab { border: 0; background: transparent; padding: 9px; border-radius: 7px; color: #858c9b; font-size: 11px; font-weight: 700; }.auth-tab.active { background: white; color: var(--purple); box-shadow: 0 2px 7px #2a2e4510; }.form-label { display: grid; gap: 7px; color: #616a7a; font-size: 10px; font-weight: 700; margin: 13px 0; }.form-label input { width: 100%; border: 1px solid #e4e6ee; border-radius: 8px; padding: 12px; color: var(--ink); background: #fff; font-size: 11px; font-weight: 400; }.form-label input:focus { border-color: #b6adff; outline: 2px solid #f0edff; }.full-width { width: 100%; margin-top: 6px; }.form-message { color: #bf634e; font-size: 10px; line-height: 1.6; }.modal-footnote { color: #9aa1ae; font-size: 9px; line-height: 1.6; margin: 16px 0 0; }.lesson-modal { width: min(850px, calc(100% - 24px)); }.video-frame { width: 100%; aspect-ratio: 16/9; background: #111827; border-radius: 12px; overflow: hidden; margin: 20px 0 15px; }.video-frame iframe { width: 100%; height: 100%; border: 0; }.lesson-actions { display: flex; justify-content: space-between; align-items: center; gap: 12px; color: #858d9b; font-size: 11px; }.video-note { color: #9aa1ae; font-size: 9px; margin: 14px 0 0; }.toast { position: fixed; z-index: 50; bottom: 22px; left: 50%; transform: translate(-50%, 15px); opacity: 0; pointer-events: none; background: #202a3b; color: white; border-radius: 10px; padding: 12px 17px; box-shadow: 0 10px 35px #1d24352e; font-size: 11px; transition: .2s; max-width: calc(100% - 30px); }.toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (min-width: 1500px) { .main-content { padding-left: 55px; padding-right: 55px; }.course-cover { height: 165px; } }
@media (max-width: 1200px) { .main-content { padding-left: 28px; padding-right: 28px; }.course-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }.welcome-art { right: 0; opacity: .75; }.welcome-row { padding-left: 28px; } }
@media (max-width: 850px) { .sidebar { transform: translateX(-100%); transition: transform .25s; box-shadow: none; }.sidebar.mobile-open { transform: translateX(0); box-shadow: 15px 0 40px #1e27451c; }.main-content { margin-left: 0; padding: 0 22px 50px; }.mobile-menu { display: inline-block; margin-left: -8px; }.topbar { gap: 12px; }.breadcrumb { flex: 1; }.welcome-art { right: -42px; opacity: .35; }.welcome-row > div:first-child { position: relative; z-index: 1; }.status-pill { display: none; } }
@media (max-width: 580px) { .main-content { padding: 0 14px 35px; }.topbar { height: 64px; margin-bottom: 20px; }.breadcrumb { font-size: 10px; }.topbar-actions { gap: 4px; }.notification-button { display: none; }.welcome-row { min-height: 190px; padding: 24px 20px; }.welcome-row h1 { font-size: 28px; max-width: 290px; }.welcome-art { right: -115px; }.stats-grid { grid-template-columns: 1fr; gap: 10px; margin: 14px 0 30px; }.stat-card { min-height: 100px; }.stat-number { margin: 7px 0; }.course-grid { grid-template-columns: 1fr; }.course-cover { height: 160px; }.section-heading h2 { font-size: 18px; }.page-title-row h1 { font-size: 28px; }.filters-row { flex-direction: column; }.search-box { max-width: none; min-height: 43px; }.filters-row select { min-height: 42px; }.assignment-card { flex-wrap: wrap; padding: 14px; gap: 11px; }.assignment-main { flex-basis: calc(100% - 58px); }.assignment-side { width: 100%; display: flex; align-items: center; justify-content: space-between; padding-left: 53px; }.course-detail-hero { padding: 23px; }.course-detail-hero h1 { font-size: 26px; }.detail-abstract { display: none; }.detail-columns { grid-template-columns: 1fr; gap: 20px; }.detail-meta { flex-wrap: wrap; gap: 9px; }.modal { padding: 24px 20px; }.lesson-actions { align-items: start; flex-direction: column; }.lesson-actions .primary-button { width: 100%; }.settings-actions { flex-direction: column; align-items: stretch; } }