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clamp(18px,4vw,56px);display:grid}.auth-panel{background:var(--trk-surface);border:1px solid var(--line);border-top:6px solid var(--papaya);border-radius:8px;gap:18px;width:100%;max-width:620px;padding:clamp(24px,5vw,42px);display:grid}.auth-panel h1{font-size:clamp(2.8rem,8vw,5.4rem)}.auth-panel p,.auth-panel small{color:var(--steel);margin:0}.auth-form{gap:14px;display:grid}.auth-form label{gap:7px;display:grid}.auth-form label span,.auth-error,.auth-notice{text-transform:uppercase;font-size:.78rem;font-weight:900}.auth-form input{background:var(--trk-input-bg);border:1px solid var(--trk-input-border);color:var(--trk-text);font:inherit;border-radius:8px;min-height:46px;padding:10px 12px}.auth-error{color:var(--trk-error-text)}.auth-notice{background:rgba(var(--trk-accent-rgb), .1);border-left:4px solid var(--papaya);color:var(--trk-text);overflow-wrap:anywhere;padding:10px 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strong{font-family:var(--font-display);letter-spacing:0;text-transform:uppercase;font-size:1rem;line-height:1;display:block}.toast-card p{color:var(--steel);margin:5px 0 0;font-size:.88rem}.toast-card__dismiss{color:var(--steel);text-transform:uppercase;background:0 0;border:0;padding:2px;font-size:.68rem;font-weight:900}@keyframes toast-slide-in{0%{opacity:0;transform:translate(18px)}to{opacity:1;transform:translate(0)}}.learner-workspace{grid-template-columns:clamp(340px,29vw,400px) minmax(0,1fr);align-items:start;display:grid}.learner-main{min-width:0;position:relative}.learner-main--transitioning .portal-hero{filter:saturate(.82)contrast(.96);opacity:.62;transition:filter var(--motion-base) var(--motion-ease-out), opacity var(--motion-base) var(--motion-ease-out), transform var(--motion-base) var(--motion-ease-out);transform:translateY(8px)}.lesson-transition-loader{border:1px solid rgba(var(--trk-accent-rgb), .3);color:var(--paper);z-index:95;background:#080808eb;border-radius:8px;align-items:center;gap:13px;width:min(430px,100% - 36px);padding:13px 14px;animation:.18s ease-out lesson-loader-in;display:flex;position:fixed;top:88px;right:clamp(18px,4vw,56px);box-shadow:0 18px 46px #08080838}.lesson-transition-loader strong{color:var(--papaya);font-family:var(--font-display);text-transform:uppercase;line-height:1;display:block}.lesson-transition-loader p,.lesson-transition-loader small{margin:0}.lesson-transition-loader p{font-weight:850}.lesson-transition-loader small{color:#ffffffa8;font-size:.78rem;display:block}.lesson-transition-loader__spinner{border:2px solid #ffffff3d;border-top-color:var(--papaya);border-radius:999px;flex:none;width:28px;height:28px;animation:.76s linear infinite lesson-loader-spin}.lesson-pending-public{border:1px solid rgba(var(--trk-accent-rgb), .3);color:var(--paper);background:linear-gradient(135deg,#080808 0%,#161616 48%,#23180f 100%);border-radius:12px;grid-template-columns:minmax(0,1.05fr) minmax(280px,.82fr);align-items:stretch;gap:clamp(22px,4vw,42px);min-height:clamp(560px,72vh,760px);padding:clamp(22px,4vw,42px);display:grid;position:relative;overflow:hidden;box-shadow:0 24px 70px #0003,inset 0 1px #ffffff14}.lesson-pending-public:after{content:"";opacity:.24;pointer-events:none;background-image:linear-gradient(#ffffff0b 1px,#0000 1px),linear-gradient(90deg,#ffffff0b 1px,#0000 1px);background-size:34px 34px;position:absolute;inset:0}.lesson-pending-public__content{z-index:1;align-content:center;justify-items:start;min-width:0;padding:clamp(8px,2vw,30px);display:grid;position:relative}.lesson-pending-public__eyebrow{background:rgba(var(--trk-accent-rgb), .12);border:1px solid rgba(var(--trk-accent-rgb), .42);color:var(--papaya);text-transform:uppercase;border-radius:999px;padding:10px 12px;font-size:.78rem;font-weight:900;line-height:.9;display:inline-flex}.lesson-pending-public h1{text-transform:uppercase;max-width:860px;margin:22px 0 18px;font-size:clamp(2.6rem,6.4vw,6.4rem);line-height:.92}.lesson-pending-public p{color:#ffffffc2;max-width:760px;margin:0;font-size:clamp(1rem,1.4vw,1.22rem);line-height:1.6}.lesson-pending-public__meta{border-left:4px solid var(--papaya);background:#ffffff0f;border-radius:0 8px 8px 0;gap:6px;max-width:720px;margin:26px 0 18px;padding:15px 16px;display:grid}.lesson-pending-public__meta strong{color:var(--paper);font-size:1.12rem}.lesson-pending-public__meta small{color:#ffffffad}.lesson-pending-public__flow{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;width:100%;max-width:860px;margin:8px 0 24px;display:grid}.lesson-pending-public__flow article{background:#ffffff13;border:1px solid #ffffff1f;border-radius:8px;gap:8px;min-width:0;padding:14px;display:grid}.lesson-pending-public__flow b{color:var(--papaya);font-family:var(--font-display);font-size:1.16rem;line-height:1}.lesson-pending-public__flow span{color:var(--paper);font-family:var(--font-display);text-transform:uppercase;font-size:1.08rem;font-weight:900;line-height:1}.lesson-pending-public__flow small{color:#ffffffa3;line-height:1.4}.lesson-pending-public__art{z-index:1;border-radius:10px;align-self:stretch;min-height:420px;position:relative;overflow:hidden}.lesson-pending-public__art img{filter:saturate(.9)contrast(1.08)brightness(.74);object-fit:cover;width:100%;height:100%;position:absolute;inset:0}.lesson-pending-public__art:after{content:"";background:linear-gradient(#0000 0%,#0808089e 100%),linear-gradient(90deg,#ff800038,#0000 54%);position:absolute;inset:0}.lesson-pending-public__code{z-index:1;position:absolute;bottom:24px;left:24px}.lesson-pending-public__code strong{color:var(--paper);font-family:var(--font-display);text-shadow:0 12px 34px #00000075;font-size:clamp(5.6rem,11vw,10rem);line-height:.72;display:block}.lesson-pending-public__code span{color:var(--papaya);letter-spacing:0;text-transform:uppercase;margin-top:12px;font-size:.86rem;font-weight:900;display:block}.lesson-pending-public__track{z-index:1;position:absolute;inset:22px 22px auto auto}.lesson-pending-public__track i{background:var(--papaya);width:54px;height:6px;margin-bottom:9px;display:block}.lesson-pending-public__track i:nth-child(2){opacity:.78;width:38px;margin-left:18px}.lesson-pending-public__track i:nth-child(3){opacity:.48;width:62px;margin-left:7px}@keyframes lesson-loader-in{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes lesson-loader-spin{to{transform:rotate(360deg)}}.lesson-drawer-backdrop,.learner-sidebar__close{display:none}.lesson-drawer-toggle{display:inline-flex}@media (width>=901px){.lesson-drawer-toggle{display:none}}.learner-sidebar{background:var(--trk-sidebar-bg);color:var(--paper);grid-template-rows:auto auto auto minmax(0,1fr);gap:14px;height:calc(100vh - 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strong{color:var(--paper);font-family:var(--font-display);text-transform:uppercase;font-size:1.15rem;line-height:1.05}.learner-profile-card__levels{overscroll-behavior-x:contain;scroll-snap-type:x mandatory;grid-template-rows:repeat(2,68px);grid-auto-columns:164px;grid-auto-flow:column;gap:6px;margin:0;padding:0 0 4px;list-style:none;display:grid;overflow-x:auto}.learner-profile-card__levels::-webkit-scrollbar{height:6px}.learner-profile-card__levels::-webkit-scrollbar-track{background:#ffffff14;border-radius:999px}.learner-profile-card__levels::-webkit-scrollbar-thumb{background:rgba(var(--trk-accent-rgb), .55);border-radius:999px}.learner-profile-card__level{--level-accent:var(--papaya);background:linear-gradient(90deg, var(--trk-sidebar-subtle), var(--trk-sidebar-faint)), var(--trk-sidebar-card-bg);border:1px solid var(--trk-sidebar-line);border-left:4px solid var(--level-accent);color:var(--paper);scroll-snap-align:start;min-width:0;height:68px;min-height:0;transition:border-color var(--motion-fast) ease, box-shadow var(--motion-fast) ease, transform var(--motion-fast) ease;border-radius:8px;align-items:center;font-size:.66rem;line-height:1.15;display:grid;overflow:hidden}.learner-profile-card__level:hover{border-color:color-mix(in srgb, var(--level-accent) 58%, transparent);transform:translateY(-1px);box-shadow:0 10px 24px #0000002e}.learner-profile-card__level-button{color:inherit;cursor:pointer;height:100%;line-height:inherit;text-align:left;background:0 0;border:0;grid-template-columns:auto minmax(0,1fr);align-items:center;gap:4px;width:100%;min-width:0;padding:6px;display:grid}.learner-profile-card__level-button:focus-visible{outline:2px solid 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small{color:#ffffffbd;white-space:nowrap;grid-column:2;justify-self:start;font-size:.6rem}.learner-profile-card__level.is-completed{--level-accent:#7dffbd;background:#19c37d1f;border-color:#7dffbd66}.learner-profile-card small{color:var(--trk-sidebar-muted);text-overflow:ellipsis;white-space:nowrap;line-height:1.25;overflow:hidden}.learner-sidebar__list{overscroll-behavior:contain;min-height:0;padding:0 10px max(72px, env(safe-area-inset-bottom)) 0;scrollbar-gutter:stable;gap:16px;display:grid;overflow:auto}.learner-level-group,.learner-level-sections,.learner-section-group,.learner-section-lessons{gap:10px;display:grid}.learner-level-group{scroll-margin-top:12px}.learner-level-toggle,.learner-section-toggle{background:var(--trk-sidebar-faint);border:1px solid var(--trk-sidebar-line);color:var(--papaya);text-align:left;text-transform:uppercase;justify-content:space-between;align-items:center;gap:10px;width:100%;min-height:58px;padding:11px 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.18);transform:translate(4px)}to{background:var(--trk-sidebar-faint);transform:translate(0)}}.learner-level-toggle:before,.learner-section-toggle:before{content:"▸";transition:transform var(--motion-fast) ease;font-size:.75rem}.learner-level-toggle[aria-expanded=true]:before,.learner-section-toggle[aria-expanded=true]:before{transform:rotate(90deg)}.learner-level-toggle small,.learner-section-toggle small{border:1px solid rgba(var(--trk-accent-rgb), .4);color:var(--paper);border-radius:999px;padding:4px 7px;font-size:.7rem}.learner-level-toggle.is-completed small,.learner-section-toggle.is-completed small{color:#7dffbd;border-color:#7dffbd8a}.learner-level-sections{border-left:1px solid var(--trk-sidebar-subtle);margin-left:10px;padding-left:8px}.learner-section-lessons{padding-left:12px}.lesson-nav-item{background:var(--trk-sidebar-card-bg);border:1px solid var(--trk-sidebar-line);color:var(--trk-sidebar-text);text-align:left;min-height:68px;transition:background var(--motion-fast) ease, border-color var(--motion-fast) ease, box-shadow var(--motion-fast) ease, transform var(--motion-fast) ease;border-left:4px solid #0000;gap:8px;width:100%;padding:14px 15px;display:grid;position:relative;overflow:hidden}.lesson-nav-item:before{background:linear-gradient(90deg, rgba(var(--trk-accent-rgb), .18), rgba(var(--trk-accent-rgb), .06) 46%, transparent);content:"";pointer-events:none;transition:transform .3s var(--motion-ease-out);position:absolute;inset:0;transform:translate(-105%)}.lesson-nav-item>*{z-index:1;position:relative}.learner-section-lessons .lesson-nav-item{animation:pit-card-rise .34s var(--motion-ease-out) backwards;animation-delay:calc(var(--motion-index,0) * 38ms)}.lesson-nav-item.active{border-left-color:var(--papaya);box-shadow:0 0 0 1px rgba(var(--trk-accent-rgb), .18)}.lesson-nav-item.active:before{transform:translate(0)}.lesson-nav-item.is-completed{background:#19c37d1f;border-color:#19c37d57}.lesson-nav-item.is-completed .lesson-nav-item__status{color:#7dffbd}.lesson-nav-item.is-just-completed{animation:.78s ease-out lesson-complete-pulse}.lesson-nav-item.is-just-completed:after{animation:lesson-complete-sweep .72s var(--motion-ease-out) 1;content:"";pointer-events:none;background:linear-gradient(90deg,#0000,#7dffbd52,#0000);position:absolute;inset:0;transform:translate(120%)}.lesson-nav-item.is-in-progress{background:rgba(var(--trk-accent-rgb), .1)}.lesson-nav-item.is-pending-public{background:#ffffff0a;border-color:#ffffff24 #ffffff24 #ffffff24 #8b949e}.lesson-nav-item.is-pending-public .lesson-nav-item__status{color:#c9d1d9}.lesson-nav-item strong{font-family:var(--font-display);text-transform:uppercase;font-size:1.28rem;line-height:.98}.lesson-nav-item small{color:#ffffff7a;font-size:.72rem;font-weight:800}.lesson-complete-banner{background:var(--trk-success-muted);border:1px solid var(--trk-success-border);color:var(--trk-success-text);text-transform:uppercase;border-radius:8px;padding:10px 12px;font-weight:900}@keyframes lesson-complete-pulse{0%{transform:translateY(0);box-shadow:0 0 #19c37d7a}45%{transform:translateY(-2px);box-shadow:0 0 0 8px #19c37d1f}to{transform:translateY(0);box-shadow:0 0 #19c37d00}}@keyframes lesson-complete-sweep{0%{transform:translate(-120%)}to{transform:translate(120%)}}.portal-status-panel,.safety-panel,.lesson-body,.drill-card,.quiz-preview,.admin-metrics article,.admin-panel{background:var(--trk-surface);border:1px solid var(--line);border-radius:8px;min-width:0}.portal-status-panel{border-top:5px solid var(--papaya);gap:14px;padding:18px;display:grid}.portal-status-panel p,.portal-status-panel small{color:var(--steel);margin:0}.portal-layout{grid-template-columns:minmax(0,1fr) minmax(260px,.34fr);align-items:start;gap:16px;padding:10px clamp(18px,4vw,56px) 26px;display:grid}.learner-main .portal-layout{grid-template-columns:minmax(0,1fr)}.learner-main .lesson-body,.learner-main .safety-panel{width:100%;max-width:1040px}.learner-main 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