@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-ext-wght-normal-BOeWTOD4.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-cyrillic-wght-normal-DqGufNeO.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-ext-wght-normal-DlzME5K_.woff2)format("woff2-variations");unicode-range:U+1F??}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-greek-wght-normal-CkhJZR-_.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-vietnamese-wght-normal-CBcvBZtf.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-ext-wght-normal-DO1Apj_S.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/inter-latin-wght-normal-Dx4kXJAl.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{color:#111113;-webkit-text-size-adjust:100%;-webkit-tap-highlight-color:transparent;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;line-height:1.5;font-family:var(--tenant-font-primary,"Inter Variable"), Inter, ui-sans-serif, system-ui, sans-serif;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--background:#fff;--foreground:#111113;--card:#fff;--muted:#f6f7f8;--muted-foreground:#60646c;--text-2:#000000a8;--text-3:#0000008c;--text-4:#0000006b;--divider:#0000000f;--border:#e6e7ea;--sidebar:#f6f7f8;--sidebar-foreground:#111113;--sidebar-border:#e6e7eb;--brand:#8a4fff;--brand-strong:#7a3fe7;--brand-text:#6314ff;--brand-foreground:#fff;--danger:#dc2828;--danger-soft:#fdf2f2;--danger-text:#b11b1b;--topbar-height:48px;--sidebar-width:265px;--duration-fast:.12s;--duration-base:.15s;--duration-slow:.2s;--ease-out:cubic-bezier(.2, 0, 0, 1);--transition-interactive:color var(--duration-base) var(--ease-out), background-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);--transition-chip:background-color var(--duration-fast) var(--ease-out);--sidebar-transition:var(--duration-slow) var(--ease-out);--nav-row-active:#0000000a;--nav-row-hover:#00000008;--row-pressed:#00000014;--control-edge:color-mix(in srgb, var(--foreground) 48%, transparent);--brand-bg:color-mix(in srgb, var(--brand) 8%, var(--background));--brand-border:color-mix(in srgb, var(--brand) 55%, var(--border));--brand-ring:color-mix(in srgb, var(--brand) 26%, transparent);--scrim:#0000001f;--glyph-check:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6 9 17l-5-5'/%3E%3C/svg%3E");--glyph-x:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M18 6 6 18M6 6l12 12'/%3E%3C/svg%3E");--tracking-tight:-.01em;--tracking-tighter:-.02em;--radius-sm:8px;--radius-lg:12px;--radius-xl:16px;--nav-row-radius:var(--radius-sm);--elevation-raised:0 0 2px #1c28402e, 0 1px 3px #0000000a;--elevation-overlay:0 12px 32px #1c284024, 0 2px 8px #00000014;--elevation-hairline:inset 0 0 0 1px #0000000f;--elevation-card:inset 0 0 0 1px #0000000f, 0 1px 2px #0000000a;--elevation-brand:inset 0 0 0 1px #0000000f, 0 2px 4px -2px color-mix(in srgb, var(--brand) 12%, transparent), 0 3px 6px -2px color-mix(in srgb, var(--brand) 8%, transparent);--focus-ring:0 0 0 3px color-mix(in srgb, var(--brand) 28%, transparent);background:#fff}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{background:var(--background);min-width:320px}.sr-only-label{font:inherit;clip-path:inset(50%);margin:0;position:absolute}.skip-link:focus{z-index:60;clip-path:none;border-radius:var(--radius-sm);color:var(--foreground);background:var(--card);letter-spacing:var(--tracking-tight);padding:8px 12px;font-size:14px;font-weight:500;text-decoration:none;position:fixed;top:8px;left:8px}.app-content,.player-rail,.player-slide__body,.player-intro__body,.player-modal,.player-modal__dialog{overscroll-behavior:contain}button,a,input{font:inherit;color:inherit}button{appearance:button;background:0 0;border:0 solid;padding:0}button:focus-visible,a:focus-visible,input:focus-visible,[tabindex="-1"]:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:var(--focus-ring)}.learner-shell{background:var(--background);height:100svh;color:var(--foreground);display:flex;overflow:hidden}.sidebar-gap{width:var(--sidebar-width);height:100svh;transition:width var(--sidebar-transition);flex:none}.sidebar{z-index:20;width:var(--sidebar-width);border-right:1px solid var(--sidebar-border);height:100svh;color:var(--sidebar-foreground);background:var(--sidebar);transition:transform var(--sidebar-transition);flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.learner-shell[data-sidebar-state=hidden] .sidebar-gap,.learner-shell[data-sidebar-state=peek] .sidebar-gap{width:0}.learner-shell[data-sidebar-state=hidden] .sidebar{transform:translate(-100%)}.learner-shell[data-sidebar-state=peek] .sidebar{z-index:50;box-shadow:var(--elevation-overlay)}.sidebar__brand{height:var(--topbar-height);border-bottom:1px solid var(--sidebar-border);flex:none;align-items:center;padding:0 48px 0 12px;display:flex;position:relative}.sidebar-toggle-wrap{z-index:1}.sidebar-toggle-wrap--collapse{position:absolute;top:50%;right:8px;transform:translateY(-50%)}.sidebar-toggle-wrap--open{flex:none;position:relative}.sidebar-toggle{color:var(--muted-foreground);cursor:pointer;transition:var(--transition-interactive);background:0 0;border:0;border-radius:8px;justify-content:center;align-items:center;padding:0;display:inline-flex}.sidebar-toggle--collapse{width:28px;height:28px}.sidebar-toggle--open{width:32px;height:32px}.sidebar-toggle:hover{color:var(--foreground);background:var(--nav-row-hover)}.sidebar-toggle svg,.sidebar-toggle__icon-stack{width:16px;height:16px}.sidebar-toggle__icon-stack{display:block;position:relative}.sidebar-toggle__icon{transition:opacity .15s,transform .15s;position:absolute;inset:0}.sidebar-toggle__icon--action{opacity:0;transform:translate(-4px)}.sidebar-toggle--collapse:hover .sidebar-toggle__icon--rest,.sidebar-toggle--collapse:focus-visible .sidebar-toggle__icon--rest{opacity:0}.sidebar-toggle--collapse:hover .sidebar-toggle__icon--action,.sidebar-toggle--collapse:focus-visible .sidebar-toggle__icon--action{opacity:1;transform:translate(0)}.sidebar-tooltip{z-index:80;color:#fff;width:max-content;box-shadow:var(--elevation-overlay);pointer-events:none;opacity:0;background:#1e2229f5;border-radius:8px;align-items:center;gap:4px;padding:6px 8px;font-size:12px;font-weight:500;line-height:1.3;transition:opacity .12s,transform .12s;display:flex;position:absolute;top:calc(100% + 7px);left:0;transform:translateY(-3px)}.sidebar-toggle-wrap--collapse .sidebar-tooltip{left:auto;right:0}.sidebar-toggle-wrap:hover .sidebar-tooltip,.sidebar-toggle-wrap:focus-within .sidebar-tooltip{opacity:1;transform:translateY(0)}.sidebar-tooltip kbd{font:inherit;text-align:center;background:#ffffff24;border-radius:4px;padding:1px 4px;font-size:10px}.sidebar-edge-hot-zone{z-index:30;width:8px;position:fixed;top:0;bottom:0;left:0}.brand-mark{align-items:center;min-width:0;display:inline-flex}.brand-mark__wordmark{width:auto;height:21px;display:block}.sidebar__nav{flex-direction:column;gap:1px;padding:9px 8px;display:flex}.nav-link{border-radius:var(--nav-row-radius);height:28px;color:var(--sidebar-foreground);letter-spacing:var(--tracking-tight);transition:var(--transition-chip);align-items:center;gap:6px;padding:0 8px;font-size:14px;font-weight:500;text-decoration:none;display:flex}.nav-link svg{stroke-width:1.5px;flex:none;width:14px;height:14px}.nav-link:hover{background:var(--nav-row-hover)}.nav-link--active{background:var(--nav-row-active)}.sidebar__profile{border-top:1px solid var(--sidebar-border);grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:9px;min-height:56px;margin-top:auto;padding:8px 12px;display:grid}.sign-out{width:26px;height:26px;color:var(--text-3);cursor:pointer;background:0 0;border:0;border-radius:8px;flex:none;justify-content:center;align-items:center;padding:0;display:inline-flex}.sign-out svg{flex:none;width:16px;height:16px}.sign-out:hover{color:var(--foreground);background:var(--nav-row-hover)}.profile-avatar{width:28px;height:28px;color:var(--brand-foreground);background:var(--brand);letter-spacing:-.01em;border-radius:8px;flex:none;justify-content:center;align-items:center;font-size:10px;font-weight:600;display:inline-flex}.profile-avatar--photo{object-fit:cover;display:block}.profile-copy{flex-direction:column;gap:1px;min-width:0;display:flex}.profile-copy strong{letter-spacing:var(--tracking-tight);text-overflow:ellipsis;white-space:nowrap;font-size:12px;font-weight:600;overflow:hidden}.app-main{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.app-topbar{height:var(--topbar-height);border-bottom:1px solid var(--border);background:var(--background);flex:none;align-items:center;gap:8px;padding:0 12px;display:flex}.app-topbar svg{width:16px;height:16px;color:var(--muted-foreground);stroke-width:1.5px}.app-topbar h2{letter-spacing:var(--tracking-tight);margin:0;font-size:14px;font-weight:500}.app-content{flex:1;min-width:0;min-height:0;overflow:auto}.page{flex-direction:column;width:min(1120px,100% - 64px);min-height:100%;margin:0 auto;padding:40px 0 64px;display:flex}.page-head{margin-bottom:22px}.page-head__title{color:var(--foreground);letter-spacing:-.02em;margin:0;font-size:20px;font-weight:600;line-height:1.25}.page-head__sub{color:var(--text-2);letter-spacing:var(--tracking-tight);margin:6px 0 0;font-size:14px;font-weight:500;line-height:1.5}.page-head__sub-od{color:var(--danger)}.tcard{border-radius:var(--radius-lg);background:var(--card);box-shadow:var(--elevation-card)}.tcard__head{justify-content:space-between;align-items:center;gap:12px;padding:13px 16px;display:flex}.tcard__head h2{color:var(--foreground);letter-spacing:var(--tracking-tight);margin:0;font-size:14px;font-weight:600}.tcard__meta{color:var(--text-3);letter-spacing:var(--tracking-tight);font-size:12px;font-weight:500}.trow{border-top:1px solid var(--divider);color:inherit;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:16px;padding:12px 16px;text-decoration:none;display:grid}@media (hover:hover){.trow:hover{background:var(--nav-row-hover)}.trow:hover .trow__cta{background:var(--brand-strong)}.trow:hover .trow__go{color:var(--text-2)}}.trow:active,.mobile-nav__link:active{background:var(--row-pressed)}.trow:active .trow__cta{background:var(--brand-strong)}.trow__id{min-width:0}.trow__id strong{color:var(--foreground);letter-spacing:var(--tracking-tight);text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500;display:block;overflow:hidden}.trow__id small{color:var(--text-3);letter-spacing:var(--tracking-tight);margin-top:3px;font-size:12px;font-weight:500;display:block}.trow__id small.trow__meta{align-items:center;gap:8px;margin-top:6px;display:flex}.trow__status,.trow__pill{border:1px solid var(--border);border-radius:var(--radius-sm);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums;align-items:center;padding:2px 8px;font-size:12px;display:inline-flex}.trow__status{border-color:#0000;font-weight:600}.trow__status--progress{color:var(--brand-text);border-color:var(--brand-border);background:var(--brand-bg)}.trow__status--overdue,.trow__status--failed{color:var(--danger-text);border-color:color-mix(in srgb, var(--danger) 40%, var(--border));background:var(--danger-soft)}.trow__sub{color:var(--text-3)}.trow__pill{color:var(--text-2);font-weight:500}.trow__end{align-items:center;gap:16px;display:flex}.trow__cta{color:var(--brand-foreground);background:var(--brand);box-shadow:var(--elevation-brand);letter-spacing:var(--tracking-tight);border-radius:8px;align-items:center;padding:6px 13px;font-size:13px;font-weight:600;display:inline-flex}.trow__go{width:15px;height:15px;color:var(--text-4)}.trow--done .trow__id strong{color:var(--text-2);font-weight:500}.trow__check{vertical-align:-3px;width:16px;height:16px;color:var(--text-3);background:#00000012;border-radius:50%;justify-content:center;align-items:center;margin-right:8px;display:inline-flex}.trow__check svg{width:10px;height:10px}.button{min-height:28px;letter-spacing:var(--tracking-tight);white-space:nowrap;cursor:pointer;transition:var(--transition-interactive);border:1px solid #0000;border-radius:8px;justify-content:center;align-items:center;gap:6px;padding:4px 10px;font-size:14px;font-weight:500;line-height:1.2;text-decoration:none;display:inline-flex}.button svg{width:14px;height:14px}.button:not(:disabled):active{transform:translateY(1px)}.button:disabled{opacity:.5;cursor:not-allowed}.button--primary{color:var(--brand-foreground);background:var(--brand);box-shadow:var(--elevation-brand)}.button--primary:hover:not(:disabled){background:var(--brand-strong)}.button--secondary{color:var(--foreground);background:var(--background);box-shadow:var(--elevation-hairline)}.button--secondary:hover:not(:disabled){background:var(--muted)}.empty-state{text-align:center;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:8px;min-height:0;padding:0 16px;display:flex}.empty-state__visual{color:var(--muted-foreground);margin-bottom:4px}.empty-state-grid{justify-content:center;align-items:center;width:160px;height:112px;margin:0 auto;display:flex;position:relative}.empty-state-grid__lines{color:var(--muted-foreground);opacity:.4;position:absolute;inset:0}.empty-state-grid__backdrop{width:100%;height:100%;display:block}.empty-state-grid__icon{color:var(--muted-foreground);display:inline-flex;position:relative}.empty-state-grid__icon>svg{stroke-width:1.25px;width:48px;height:48px}.empty-state h2{letter-spacing:-.02em;margin:0;font-size:20px;font-weight:600}.empty-state p{max-width:260px;color:var(--muted-foreground);letter-spacing:var(--tracking-tight);margin:0;font-size:14px;font-weight:500;line-height:1.55}.empty-state__actions{margin-top:20px}.page-state{min-height:0;color:var(--muted-foreground);flex:1;justify-content:center;align-items:center;gap:10px;font-size:14px;display:flex}.page-state svg{width:20px}.page-state--error{text-align:center;color:var(--danger);flex-direction:column}.spinner{border:2px solid var(--border);border-top-color:var(--brand);border-radius:50%;width:20px;height:20px;animation:.7s linear infinite training-spin}.spinner--quiet{border-width:1.5px;border-top-color:var(--muted-foreground);width:16px;height:16px}@keyframes training-spin{to{transform:rotate(360deg)}}.mobile-header,.mobile-nav{display:none}.mobile-header__account{align-items:center;gap:10px;display:flex}.route-loading,.player-empty,.centered-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:100svh;padding:32px;display:flex}.route-loading{color:var(--muted-foreground);font-size:14px}.session-loading{background:var(--background);place-items:center;min-height:100svh;display:grid}.session-loading__status{display:inline-flex}.centered-state,.player-empty{background:var(--muted)}.centered-state__brand{margin-bottom:32px;display:inline-flex}.centered-state h1,.player-empty h1{letter-spacing:-.02em;margin:0;font-size:24px;font-weight:600}.centered-state p,.player-empty p{max-width:520px;color:var(--muted-foreground);margin:10px 0 22px;font-size:14px;line-height:1.6}.empty-state__actions,.player-empty__actions,.player-verdict__actions{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.player-modal{z-index:100;justify-content:center;align-items:flex-start;padding:24px;display:flex;position:fixed;inset:0;overflow:auto}.player-modal__scrim{background:var(--scrim);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:.12s player-modal-fade;position:fixed;inset:0}.player-modal__dialog{border-radius:var(--radius-xl);background:var(--card);width:100%;max-width:440px;max-height:100%;box-shadow:var(--elevation-hairline), var(--elevation-overlay);text-align:center;flex-direction:column;align-items:center;margin-block:auto;padding:32px 32px 28px;animation:.12s player-modal-pop;display:flex;position:relative;overflow-y:auto}.player-modal__dialog:focus-visible{box-shadow:var(--elevation-hairline), var(--elevation-overlay);outline:none}@keyframes player-modal-fade{0%{opacity:0}}@keyframes player-modal-pop{0%{opacity:0;transform:scale(.96)}}.player-verdict{--v-accent:var(--brand)}.player-verdict[data-outcome=failed]{--v-accent:var(--danger)}.player-verdict__badge{border-radius:var(--radius-xl);width:60px;height:60px;color:var(--v-accent);background:color-mix(in srgb, var(--v-accent) 12%, var(--background));justify-content:center;align-items:center;margin-bottom:16px;display:inline-flex}.player-verdict__badge svg{width:30px;height:30px}.player-verdict__title{color:var(--foreground);letter-spacing:-.02em;margin:0;font-size:22px;font-weight:600;line-height:1.2}.player-verdict__stats{border:1px solid var(--border);border-radius:var(--radius-lg);background:var(--muted);grid-template-columns:1fr 1fr;width:100%;margin:20px 0 0;display:grid;overflow:hidden}.player-verdict__stat{text-align:center;flex-direction:column;gap:4px;padding:14px 16px;display:flex}.player-verdict__stat+.player-verdict__stat{border-left:1px solid var(--border)}.player-verdict__stat dt{color:var(--muted-foreground);letter-spacing:var(--tracking-tight);font-size:12px;font-weight:500}.player-verdict__stat dd{color:var(--foreground);letter-spacing:var(--tracking-tighter);font-variant-numeric:tabular-nums;margin:0;font-size:24px;font-weight:600}.player-verdict__stat:first-child dd{color:var(--v-accent)}.player-verdict__desc{max-width:36ch;color:var(--muted-foreground);margin:16px 0 0;font-size:14px;line-height:1.55}.player-verdict__actions{gap:10px;margin-top:24px}.player-verdict__error{color:var(--danger);margin:14px 0 0;font-size:13px}.player-shell{height:100svh;min-height:0;color:var(--foreground);background:var(--muted);flex-direction:column;display:flex;overflow:hidden}.player-topbar{border-bottom:1px solid var(--border);background:var(--background);flex-wrap:wrap;flex:none;align-items:center;gap:8px;min-height:48px;padding:0 20px;display:flex}.player-topbar__back{color:var(--text-3);letter-spacing:var(--tracking-tight);align-items:center;gap:6px;font-size:13px;font-weight:500;text-decoration:none;display:inline-flex}.player-topbar__back:hover{color:var(--foreground)}.player-topbar__back svg{width:14px;height:14px}.player-topbar__sep{color:var(--text-4);font-size:13px}.player-topbar__title{min-width:96px;color:var(--foreground);letter-spacing:var(--tracking-tight);text-overflow:ellipsis;white-space:nowrap;flex:1;margin:0;font-size:13px;font-weight:500;overflow:hidden}.player-due{border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-2);letter-spacing:var(--tracking-tight);font-variant-numeric:tabular-nums;white-space:nowrap;flex:none;align-items:center;gap:5px;margin-inline-start:auto;padding:2px 8px;font-size:12px;font-weight:500;display:inline-flex}.player-due svg{width:13px;height:13px;color:var(--text-3)}.player-due--overdue{color:var(--danger-text);border-color:color-mix(in srgb, var(--danger) 40%, var(--border));background:var(--danger-soft)}.player-due--overdue svg{color:var(--danger-text)}.player-subbar{border-bottom:1px solid var(--border);background:var(--background);flex:none;align-items:center;gap:10px;height:40px;padding:0 20px;display:flex}.player-body{flex:1;min-height:0;display:flex}.player-rail{border-radius:var(--radius-xl);background:var(--card);width:300px;min-height:0;box-shadow:var(--elevation-raised);flex-direction:column;flex:none;margin:20px 0 20px 20px;padding:24px 20px 20px;display:flex;overflow:auto}.player-rail__title{color:var(--foreground);letter-spacing:var(--tracking-tighter);margin:0;font-size:20px;font-weight:600;line-height:1.25}.player-rail__time{width:fit-content;color:var(--text-2);background:var(--muted);border-radius:8px;align-items:center;gap:5px;margin-top:12px;padding:4px 9px;font-size:12px;font-weight:500;display:inline-flex}.player-rail__time svg{width:13px;height:13px}.player-rail__nav{flex-direction:column;margin-top:24px;display:flex}.player-step{text-align:left;cursor:pointer;background:0 0;border:0;align-items:stretch;gap:12px;padding:0;display:flex}.player-step:disabled{cursor:not-allowed}.player-step__spine{flex-direction:column;align-items:center;display:flex}.player-step__marker{border:1px solid var(--control-edge);width:24px;height:24px;color:var(--text-3);font-variant-numeric:tabular-nums;border-radius:8px;flex:none;justify-content:center;align-items:center;font-size:12px;font-weight:600;display:inline-flex}.player-step__marker svg{width:13px;height:13px}.player-step__line{background:var(--divider);flex:1;width:1px;min-height:14px;margin:3px 0}.player-step__label{color:var(--text-3);letter-spacing:var(--tracking-tight);padding:3px 0 20px;font-size:13px;font-weight:500}.player-step[data-state=active] .player-step__marker{border-color:var(--brand);color:var(--brand-text);background:var(--brand-bg)}.player-step[data-state=active] .player-step__label{color:var(--foreground);font-weight:600}.player-step[data-state=done] .player-step__marker{border-color:var(--brand);color:var(--brand-foreground);background:var(--brand)}.player-step[data-state=done] .player-step__line{background:var(--brand-border)}.player-step[data-state=done] .player-step__label{color:var(--text-2)}.player-step:hover:not(:disabled) .player-step__label{color:var(--foreground)}.player-step:disabled .player-step__marker,.player-step:disabled .player-step__label{opacity:.5}.player-main{flex-direction:column;flex:1;min-width:0;min-height:0;display:flex}.player-stage{flex:1;justify-content:center;min-height:0;padding:20px;display:flex}.player-slide{border-radius:var(--radius-xl);background:var(--card);width:100%;max-width:1800px;min-height:0;box-shadow:var(--elevation-raised);flex-direction:column;display:flex;overflow:hidden}.player-slide[data-kind=frame] .player-slide__body{justify-content:safe center}.player-slide__body{overflow-wrap:anywhere;flex-direction:column;flex:1;min-height:0;display:flex;overflow:auto}.player-frame{width:100%;max-width:880px;margin-inline:auto;padding:clamp(28px,3.5vw,56px)}.player-slide__body:focus-visible{box-shadow:inset 0 0 0 2px var(--brand);outline:none}.player-intro{flex:1;grid-template-columns:minmax(0,1fr) minmax(0,1fr);min-height:0;display:grid}.player-intro__art{object-fit:cover;background:var(--muted);order:2;width:100%;height:100%;min-height:0;display:block}.player-intro__body{flex-direction:column;order:1;justify-content:center;gap:14px;width:100%;min-height:0;padding:clamp(32px,4vw,64px);display:flex;overflow:auto}@media (width<=1360px){.player-intro{grid-template-rows:auto minmax(0,1fr);grid-template-columns:1fr}.player-intro__art{order:0;height:clamp(200px,34vh,320px)}.player-intro__body{justify-content:flex-start}}.player-intro__eyebrow{color:var(--brand);letter-spacing:.06em;text-transform:uppercase;margin:0;font-size:12px;font-weight:600}.player-intro__title{color:var(--foreground);letter-spacing:-.022em;margin:0;font-size:clamp(26px,2.6vw,34px);font-weight:600;line-height:1.15}.player-intro__lede{max-width:60ch;color:var(--muted-foreground);margin:0;font-size:16px;line-height:1.6}.player-intro__objectives{border:1px solid var(--border);background:color-mix(in srgb, var(--muted) 55%, var(--background));border-radius:12px;margin-top:8px;padding:16px 18px}.player-intro__objectives-label{color:var(--muted-foreground);letter-spacing:.06em;text-transform:uppercase;margin:0 0 10px;font-size:12px;font-weight:600}.player-intro__objectives ul{flex-direction:column;gap:9px;margin:0;padding:0;list-style:none;display:flex}.player-intro__objectives li{color:var(--foreground);gap:9px;font-size:14px;line-height:1.45;display:flex}.player-intro__objectives svg{width:16px;height:16px;color:var(--brand);flex:none;margin-top:2px}.training-frame__title{color:var(--foreground);letter-spacing:-.02em;margin:0;font-size:clamp(22px,2.2vw,28px);font-weight:600;line-height:1.25}.training-frame__body{max-width:68ch;color:var(--foreground);white-space:pre-line;margin:14px 0 0;font-size:15px;line-height:1.68}.training-frame__media{border:1px solid var(--border);border-radius:12px;max-width:100%;max-height:min(60svh,520px);display:block}img.training-frame__media{background:var(--muted)}video.training-frame__media{aspect-ratio:16/9;object-fit:contain;background:var(--foreground);width:100%;height:auto}.training-frame--image,.training-frame--video{justify-items:center;display:grid}.training-frame__media-state{border:1px dashed var(--border);min-height:180px;color:var(--muted-foreground);background:var(--muted);border-radius:12px;justify-content:center;align-items:center;margin:0;font-size:13px;display:flex}.training-quiz{border:0;margin:0;padding:0}.training-quiz__legend{color:var(--foreground);letter-spacing:-.018em;padding:0;font-size:22px;font-weight:600;line-height:1.3}.training-quiz__options{flex-direction:column;gap:14px;margin-top:24px;display:flex}.training-quiz__option{border:1px solid var(--border);border-radius:var(--radius-sm);min-height:68px;color:var(--foreground);background:var(--card);cursor:pointer;align-items:center;gap:16px;padding:20px 24px;font-size:16px;line-height:1.45;transition:border-color .14s,background-color .14s,box-shadow .14s,opacity .14s;display:flex;position:relative;box-shadow:0 1px 2px #00000008}@media (hover:hover){.training-quiz__option:not([data-state]):hover{border-color:var(--control-edge);background:var(--muted)}}.training-quiz__option[data-selected]:not([data-state]){border-color:var(--brand-border);background:var(--brand-bg);box-shadow:0 0 0 1px var(--brand-ring)}.training-quiz__input{clip-path:inset(50%);width:1px;height:1px;margin:0;position:absolute}.training-quiz__option:has(.training-quiz__input:focus-visible){outline:2px solid var(--brand);outline-offset:2px}.training-quiz__marker{border:1.5px solid var(--control-edge);border-radius:6px;flex:none;width:20px;height:20px;position:relative}.training-quiz__option[data-selected]:not([data-state]) .training-quiz__marker{border-color:var(--brand)}.training-quiz__option[data-selected]:not([data-state]) .training-quiz__marker:after{content:"";background:var(--brand);border-radius:3px;position:absolute;inset:4px}.training-quiz__label{min-width:0}.training-quiz__option[data-state=correct]{--q-accent:var(--brand);--q-glyph:var(--glyph-check)}.training-quiz__option[data-state=incorrect]{--q-accent:var(--danger);--q-glyph:var(--glyph-x)}.training-quiz__option[data-state=correct],.training-quiz__option[data-state=incorrect]{border-color:color-mix(in srgb, var(--q-accent) 55%, var(--border));background:color-mix(in srgb, var(--q-accent) 7%, var(--background));cursor:default}.training-quiz__option[data-state=correct] .training-quiz__marker,.training-quiz__option[data-state=incorrect] .training-quiz__marker{background:var(--q-accent);border-color:#0000}.training-quiz__option[data-state=correct] .training-quiz__marker:after,.training-quiz__option[data-state=incorrect] .training-quiz__marker:after{content:"";background:var(--card);-webkit-mask:var(--q-glyph) center / 13px 13px no-repeat;-webkit-mask:var(--q-glyph) center / 13px 13px no-repeat;mask:var(--q-glyph) center / 13px 13px no-repeat;position:absolute;inset:0}.training-quiz__option[data-state=idle]{cursor:default;color:color-mix(in srgb, var(--foreground) 80%, transparent)}.training-quiz__feedback{border:1px solid color-mix(in srgb, var(--q-accent) 40%, transparent);border-radius:var(--radius-sm);background:color-mix(in srgb, var(--q-accent) 7%, var(--background));--q-accent:var(--danger);--q-glyph:var(--glyph-x);--q-text:var(--danger-text);align-items:flex-start;gap:12px;margin-top:16px;padding:12px 16px;display:flex}.training-quiz__feedback[data-correct=true]{--q-accent:var(--brand);--q-glyph:var(--glyph-check);--q-text:var(--brand-text)}.training-quiz__feedback-icon{background:var(--q-accent);border-radius:6px;flex:none;width:20px;height:20px;margin-top:1px;position:relative}.training-quiz__feedback-icon:after{content:"";background:var(--card);-webkit-mask:var(--q-glyph) center / 12px 12px no-repeat;-webkit-mask:var(--q-glyph) center / 12px 12px no-repeat;mask:var(--q-glyph) center / 12px 12px no-repeat;position:absolute;inset:0}.training-quiz__feedback-body{flex-direction:column;gap:2px;display:flex}.training-quiz__feedback-title{color:var(--q-text);font-size:14px;font-weight:600}.training-quiz__feedback-text{color:color-mix(in srgb, var(--foreground) 80%, transparent);font-size:13px;line-height:1.45}.player-footer{border-top:1px solid var(--divider);background:var(--card);flex:none}.player-footer__bar{flex-wrap:wrap;align-items:center;gap:16px;padding:14px 20px;display:flex}.player-footer__step{color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:var(--tracking-tight);white-space:nowrap;font-size:12px;font-weight:500}.player-footer__track{border:1px solid var(--control-edge);background:var(--muted);border-radius:999px;flex:1;min-width:40px;height:6px;overflow:hidden}.player-footer__track>span{border-radius:inherit;background:var(--brand);height:100%;transition:width .24s;display:block}.player-footer__right{flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px;margin-inline-start:auto;display:flex}.player-footer__right>.button{min-width:128px}.save-status{color:var(--muted-foreground);background:0 0;border:0;justify-self:center;align-items:center;gap:6px;margin:0;font-size:12px;display:inline-flex}.save-status svg{width:14px;color:var(--brand)}.save-status--error{color:var(--danger);cursor:pointer}.save-status--error svg{color:currentColor}.inline-error{max-width:420px;color:var(--danger-text);text-align:right;margin:0;font-size:12px;line-height:1.35}@media (width<=800px){.learner-shell{grid-template-rows:52px minmax(0,1fr) auto;display:grid}.sidebar-gap,.sidebar-edge-hot-zone,.sidebar-toggle-wrap--open,.sidebar{display:none}.mobile-header{border-bottom:1px solid var(--border);background:var(--sidebar);justify-content:space-between;align-items:center;padding:0 14px;display:flex}.mobile-header .brand-mark__wordmark{height:19px}.mobile-header .profile-avatar{width:30px;height:30px}.app-main{min-height:0}.app-topbar{height:44px}.mobile-nav{border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom);background:var(--background);grid-template-columns:repeat(2,1fr);display:grid}.mobile-nav__link{min-height:58px;color:var(--muted-foreground);flex-direction:column;justify-content:center;align-items:center;gap:4px;font-size:11px;font-weight:600;text-decoration:none;display:flex}.mobile-nav__link svg{stroke-width:1.5px;width:20px;height:20px}.mobile-nav__link--active{color:var(--brand-text);background:var(--brand-bg)}.page{width:calc(100% - 32px);padding:24px 0 32px}.button{min-height:44px}.player-rail{display:none}.player-stage{padding:12px}.training-frame__title{font-size:22px}.training-quiz__option{min-height:56px;padding:16px 18px}.player-footer__bar{padding:10px 14px calc(10px + env(safe-area-inset-bottom));gap:10px}.player-footer__step{display:none}.player-footer__right>.button{min-width:44px}.player-footer__right>.button--primary{min-width:128px}.save-status{font-size:0}.save-status svg{width:16px;height:16px}button.save-status--error{min-width:24px;min-height:44px;font-size:12px}.inline-error{border-radius:var(--radius-sm);background:var(--danger-soft);max-width:none;box-shadow:var(--elevation-hairline);text-align:left;padding:8px 10px;position:absolute;bottom:70px;left:12px;right:12px}.player-footer__bar:has(button.save-status--error) .inline-error{flex-basis:100%;position:static}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}.spinner{animation-duration:1.2s!important;animation-iteration-count:infinite!important}}@media (forced-colors:active){.tcard,.player-rail,.player-slide,.player-modal__dialog,.button--primary,.button--secondary,.trow__cta,.sidebar-tooltip{border:1px solid canvastext}.player-slide__body:focus-visible{outline-offset:-2px;outline:2px solid highlight}.training-quiz__option[data-selected]:not([data-state]) .training-quiz__marker:after,.player-footer__track>span{background:highlight}.training-quiz__option[data-state] .training-quiz__marker{border-color:canvastext}.training-quiz__option[data-state] .training-quiz__marker:after,.training-quiz__feedback-icon:after{background:canvastext}}.loading-page{width:100%;min-height:50vh;color:var(--muted-foreground);flex:1;justify-content:center;align-items:center;font-size:14px;display:flex}.loading-page--full{min-height:100svh}.loading-page__status{align-items:center;gap:8px;display:inline-flex}.loading-ui-ring{width:24px;height:24px;animation:loading-ui-ring-spin var(--duration,1s) linear infinite;flex-shrink:0}@keyframes loading-ui-ring-spin{to{transform:rotate(360deg)}}@media (prefers-reduced-motion:reduce){.loading-ui-ring{animation:none}}h1,h2,h3{font-family:var(--tenant-font-heading,var(--tenant-font-primary,"Inter Variable")), Inter, ui-sans-serif, system-ui, sans-serif}.brand-mark__wordmark{object-fit:contain;max-width:190px}.player-topbar .brand-mark__wordmark{width:auto;max-width:120px;height:24px}@media (width<=600px){.player-topbar .brand-mark__wordmark{max-width:64px}}.player-slide__brand{flex-shrink:0;justify-content:flex-end;padding:12px 24px;display:flex}.player-slide__brand .brand-mark__wordmark{max-width:160px;max-height:32px}