:root{font-family:Inter,Segoe UI,system-ui,sans-serif;color:var(--page-text);background:var(--page-bg);color-scheme:dark;--page-text: #eef7ff;--page-bg: #050a1e;--body-top: #05091b;--body-middle: #071127;--body-accent-one: rgba(92, 52, 255, .16);--body-accent-two: rgba(0, 210, 255, .1);--app-primary: #12d9ff;--app-primary-dark: #0a1233;--app-primary-bg: #071127;--app-add1: #19e3b1;--app-add1-light: #7cf8d8;--app-add1-dark: #0f9f80;--app-add2: #d94dff;--app-add2-light: #ec9dff;--app-add2-dark: #9028ba;--neon-border: rgba(66, 198, 255, .22);--neon-panel: rgba(8, 18, 48, .78);--neon-muted: #8fa8c9;--panel-from: rgba(12, 25, 61, .9);--panel-to: rgba(6, 14, 38, .78);--panel-highlight: rgba(255, 255, 255, .04);--panel-shadow: 0 22px 70px rgba(0, 0, 0, .28);--surface-input: rgba(5, 14, 37, .86);--surface-raised: rgba(8, 22, 51, .75);--surface-solid: #08152e;--nav-bg: rgba(4, 9, 27, .86);--nav-text: #effaff;--nav-link: #9fb3d1;--mobile-menu-bg: rgba(5, 13, 34, .97);--footer-bg: rgba(3, 8, 23, .8);--modal-backdrop: rgba(1, 6, 20, .82);--modal-from: rgba(12, 28, 59, .98);--modal-to: rgba(4, 12, 31, .99);--theme-divider: rgba(133, 168, 207, .2);--floating-shadow: 0 26px 80px rgba(0, 0, 0, .55), 0 0 36px rgba(35, 205, 255, .11);--track-bg: #101e3e;scroll-behavior:smooth}html.light{color-scheme:light;--page-text: #14233d;--page-bg: #edf6ff;--body-top: #f8fbff;--body-middle: #eaf5ff;--body-accent-one: rgba(139, 73, 255, .1);--body-accent-two: rgba(0, 181, 219, .1);--app-primary-bg: #edf6ff;--neon-border: rgba(24, 142, 191, .25);--neon-panel: rgba(255, 255, 255, .86);--neon-muted: #5c7391;--panel-from: rgba(255, 255, 255, .96);--panel-to: rgba(237, 247, 255, .92);--panel-highlight: rgba(255, 255, 255, .9);--panel-shadow: 0 18px 48px rgba(40, 85, 125, .12);--surface-input: rgba(255, 255, 255, .88);--surface-raised: rgba(255, 255, 255, .82);--surface-solid: #e8f2fc;--nav-bg: rgba(250, 253, 255, .9);--nav-text: #14233d;--nav-link: #536b88;--mobile-menu-bg: rgba(248, 252, 255, .98);--footer-bg: rgba(237, 247, 255, .9);--modal-backdrop: rgba(22, 38, 62, .45);--modal-from: rgba(255, 255, 255, .99);--modal-to: rgba(235, 247, 255, .99);--theme-divider: rgba(48, 117, 158, .18);--floating-shadow: 0 24px 70px rgba(40, 70, 105, .22), 0 0 30px rgba(35, 205, 255, .08);--track-bg: #dbe9f5}*{box-sizing:border-box}img,video,canvas{max-width:100%}main,section,article,nav,header,footer,div{min-width:0}body{margin:0;min-width:320px;min-height:100vh;overflow-x:hidden;background:radial-gradient(circle at 18% 18%,var(--body-accent-one),transparent 28%),radial-gradient(circle at 80% 10%,var(--body-accent-two),transparent 24%),linear-gradient(180deg,var(--body-top) 0%,var(--body-middle) 48%,var(--body-top) 100%);color:var(--page-text);transition:color .25s ease,background-color .25s ease}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}main{min-height:calc(100vh - 140px)}.app-shell{width:min(1180px,calc(100% - 32px));margin:0 auto}.page-section{padding:72px 0}.page-title{margin:0;font-size:clamp(2rem,5vw,3.75rem);line-height:1.05;letter-spacing:-.04em}.page-copy{color:var(--neon-muted);line-height:1.75}.neon-panel{background:linear-gradient(145deg,var(--panel-from),var(--panel-to));border:1px solid var(--neon-border);box-shadow:inset 0 1px var(--panel-highlight),var(--panel-shadow);border-radius:22px;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease}.neon-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:46px;padding:0 20px;border:1px solid rgba(83,220,255,.45);border-radius:12px;color:#041226;font-weight:800;cursor:pointer;background:linear-gradient(100deg,#c744ff,#12d9ff);box-shadow:0 0 26px #12d9ff33;transition:.22s ease}.neon-button:hover{transform:translateY(-2px);filter:brightness(1.08)}.neon-button.secondary{color:var(--page-text);background:var(--surface-raised)}.neon-button.small{min-height:38px;padding:0 14px;font-size:.9rem}.neon-button:disabled{opacity:.55;cursor:not-allowed;transform:none}.neon-input,.neon-select,.neon-textarea{width:100%;color:var(--page-text);background:var(--surface-input);border:1px solid rgba(89,179,236,.24);border-radius:12px;outline:none;padding:12px 14px}.neon-input:focus,.neon-select:focus,.neon-textarea:focus{border-color:#24d9ff;box-shadow:0 0 0 3px #24d9ff1a}.neon-select option{color:var(--page-text);background:var(--surface-solid)}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.empty-state{padding:44px;text-align:center;color:var(--neon-muted)}.eyebrow{color:#38dcff;text-transform:uppercase;letter-spacing:.16em;font-size:.78rem;font-weight:800}.gold{color:#ffc857}.silver{color:#c7dbef}.mobile-bottom-nav{display:none}::-webkit-scrollbar{width:9px}::-webkit-scrollbar-track{background:var(--body-top)}::-webkit-scrollbar-thumb{background:linear-gradient(#8b4dff,#15d9ff);border-radius:8px}@media (max-width: 900px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.page-section{padding:52px 0}}@media (max-width: 620px){.app-shell{width:min(100% - 20px,1180px)}.card-grid{grid-template-columns:1fr}.page-section{padding:38px 0}body{padding-bottom:calc(86px + env(safe-area-inset-bottom))}main{min-height:calc(100svh - 148px)}.mobile-bottom-nav{position:fixed;z-index:4500;left:8px;right:8px;bottom:max(8px,env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,1fr);padding:7px;border:1px solid var(--neon-border);border-radius:17px;background:var(--mobile-menu-bg);backdrop-filter:blur(16px);box-shadow:var(--floating-shadow)}.mobile-bottom-nav a{min-width:0;display:grid;place-items:center;gap:3px;padding:7px 3px;color:#7691b5;border-radius:11px;font-size:.66rem}.mobile-bottom-nav a svg{font-size:1.1rem}.mobile-bottom-nav a.active{color:#51e5ff;background:linear-gradient(120deg,#7026b455,#08748c55)}.empty-state{padding:32px 18px}.neon-panel{border-radius:17px}.page-title{font-size:clamp(2rem,11vw,3rem)}.login-modal{scrollbar-width:none}.login-modal::-webkit-scrollbar{display:none}}html.light .quick-card,html.light .catalog-tabs button,html.light .search-field,html.light .dashboard-balances>div,html.light .avatar-item{color:var(--page-text);background:var(--surface-raised);border-color:var(--neon-border);box-shadow:var(--panel-shadow)}html.light .search-field input,html.light .progress-course,html.light .lesson-row,html.light .dashboard-balances b{color:var(--page-text)}html.light .teacher-hero,html.light .lesson-finish{background:linear-gradient(120deg,#eee0ffe6,#e0f7ffeb)}html.light .progress-track,html.light .course-progress>div{background:var(--track-bg)}html.light .benefit-section{background:linear-gradient(180deg,transparent,rgba(213,232,250,.62))}html.light .course-teaser-body p,html.light .course-teaser-body footer small,html.light .benefit-card p,html.light .catalog-body p,html.light .catalog-body footer span,html.light .course-hero-info>p,html.light .course-meta,html.light .lesson-row small,html.light .lesson-row>span:last-child,html.light .lesson-side-meta,html.light .lesson-content>header p,html.light .formatted-material,html.light .game-material p,html.light .lesson-finish p,html.light .dashboard-hero p,html.light .teacher-hero p,html.light .stat-card span,html.light .progress-course span,html.light .avatar-item span,html.light .product-row.header{color:var(--neon-muted)}.notistack-SnackbarContainer,[class*=SnackbarContainer]{z-index:2147483647!important}.lds-spinner{display:inline-block;width:240px;height:240px;position:fixed;left:calc(50% - 120px);top:calc(50% - 120px);border-radius:20px;background-color:#fff;padding:40px;z-index:50000}.lds-spinner div{transform-origin:80px 80px;animation:lds-spinner 1.2s linear infinite}.lds-spinner div:after{content:" ";display:block;position:absolute;top:3px;left:29px;width:8px;height:40px;border-radius:20%;background:#002ca9}.lds-spinner div:nth-child(1){transform:rotate(0);animation-delay:-1.1s}.lds-spinner div:nth-child(2){transform:rotate(30deg);animation-delay:-1s}.lds-spinner div:nth-child(3){transform:rotate(60deg);animation-delay:-.9s}.lds-spinner div:nth-child(4){transform:rotate(90deg);animation-delay:-.8s}.lds-spinner div:nth-child(5){transform:rotate(120deg);animation-delay:-.7s}.lds-spinner div:nth-child(6){transform:rotate(150deg);animation-delay:-.6s}.lds-spinner div:nth-child(7){transform:rotate(180deg);animation-delay:-.5s}.lds-spinner div:nth-child(8){transform:rotate(210deg);animation-delay:-.4s}.lds-spinner div:nth-child(9){transform:rotate(240deg);animation-delay:-.3s}.lds-spinner div:nth-child(10){transform:rotate(270deg);animation-delay:-.2s}.lds-spinner div:nth-child(11){transform:rotate(300deg);animation-delay:-.1s}.lds-spinner div:nth-child(12){transform:rotate(330deg);animation-delay:0s}.app-progress{position:absolute;font-size:64px;color:#002ca9;width:240px;font-weight:600;position:fixed;left:calc(50% - 120px);top:calc(50% - 54px);text-align:center}@keyframes lds-spinner{0%{opacity:1}to{opacity:0}}