.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 14px;border-radius:var(--radius-sm);border:1px solid var(--border-strong);background:var(--panel-2);color:var(--text);font-weight:600;font-size:1rem;line-height:1.2;cursor:pointer;-webkit-user-select:none;user-select:none;white-space:nowrap;transition:background .12s,border-color .12s,transform .06s,box-shadow .12s}.btn:hover:not(:disabled){background:color-mix(in srgb,var(--panel-2) 82%,var(--text) 10%);border-color:color-mix(in srgb,var(--border-strong) 60%,var(--text) 40%)}.btn:active:not(:disabled){transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);border-color:var(--accent);color:var(--accent-contrast)}.btn-primary:hover:not(:disabled){background:color-mix(in srgb,var(--accent) 88%,#fff 12%);border-color:color-mix(in srgb,var(--accent) 88%,#fff 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var(--border)}.panel-title{margin:0;font-size:1rem;font-weight:700;letter-spacing:.01em}.panel-actions{margin-left:auto;display:flex;gap:8px;align-items:center}.panel-body{padding:16px}.panel-body.flush{padding:0}.badge{display:inline-flex;align-items:center;gap:5px;padding:2px 8px;border-radius:999px;font-size:1rem;font-weight:700;letter-spacing:.03em;text-transform:uppercase;background:var(--panel-2);border:1px solid var(--border);color:var(--text-dim)}.badge-accent{background:color-mix(in srgb,var(--accent) 18%,transparent);border-color:color-mix(in srgb,var(--accent) 50%,transparent);color:var(--accent)}.badge-ok{background:color-mix(in srgb,var(--ok) 16%,transparent);border-color:color-mix(in srgb,var(--ok) 50%,transparent);color:var(--ok)}.badge-warn{background:color-mix(in srgb,var(--warn) 16%,transparent);border-color:color-mix(in srgb,var(--warn) 50%,transparent);color:var(--warn)}.badge-danger{background:color-mix(in srgb,var(--danger) 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30%,var(--panel-2));border-color:var(--accent)}.switch input:checked+.switch-track:after{transform:translate(18px);background:var(--accent)}.switch input:focus-visible+.switch-track{outline:2px solid var(--focus);outline-offset:2px}input[type=range]{accent-color:var(--accent);width:100%}.screen-header{display:flex;align-items:center;gap:14px;padding:16px 28px;border-bottom:1px solid var(--border);background:color-mix(in srgb,var(--bg-2) 94%,transparent);position:sticky;top:0;z-index:5;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}.screen-header h1{margin:0;font-size:1.35rem}.screen-header .sub{color:var(--text-dim);font-size:1rem}.screen-header .actions{margin-left:auto;display:flex;gap:10px;align-items:center}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:flex;align-items:center;justify-content:center;padding:24px;background:#05070a9e;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);animation:fade-in .12s 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var(--pt-border);border-radius:6px}.pt-br-search:focus{border-color:var(--pt-accent);outline:none;box-shadow:0 0 0 1px var(--pt-accent)}.pt-br-kit{display:flex;align-items:center;gap:8px;padding:6px 8px;cursor:pointer;background:var(--pt-panel-2);border:1px solid var(--pt-border);border-radius:6px}.pt-br-kit input{accent-color:var(--pt-accent)}.pt-br-kit-label{flex:1;font-weight:600;font-size:1rem}.pt-br-cats{display:flex;flex-direction:column;gap:2px;margin:0;padding:0;list-style:none}.pt-br-cat{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;padding:4px 10px;font-size:1rem;text-align:left;background:transparent;border:1px solid transparent;border-radius:6px;cursor:pointer}.pt-br-cat:hover{background:var(--pt-panel-2)}.pt-br-cat-on,.pt-br-cat-on:hover{color:var(--pt-accent);font-weight:600;background:var(--pt-panel-2);border-color:var(--pt-accent)}.pt-br-cat-empty{color:var(--pt-dim);opacity:.55}.pt-br-count{min-width:26px;padding:0 7px;font:600 16px/22px ui-monospace,Consolas,monospace;text-align:center;color:var(--pt-dim);background:var(--pt-bg);border-radius:11px}.pt-br-list-head{position:sticky;top:0;z-index:1;display:flex;align-items:baseline;gap:12px;padding:12px 14px 10px;background:var(--pt-panel);border-bottom:1px solid var(--pt-border)}.pt-br-list-title{margin:0;font-size:17px}.pt-br-list-count{flex:1;min-width:0;color:var(--pt-dim);font-size:1rem;overflow-wrap:anywhere}.pt-br-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:8px;margin:0;padding:12px 14px 16px;list-style:none}.pt-br-item{position:relative;display:flex;min-width:0;scroll-margin:64px 0 8px}.pt-br-item .pt-card{min-height:84px}.pt-br-kit-mark{position:absolute;top:6px;right:8px;color:var(--pt-accent);font-size:1rem;line-height:1;pointer-events:none}.pt-br-empty,.pt-br-hint{padding:40px 20px;text-align:center;color:var(--pt-dim)}.pt-br-detail{padding:0}.pt-br-detail .pt-ds.pt-br-ds{max-width:none;border:0;border-radius:0;background:transparent}.pt-lesson-part{max-width:380px}@media(max-width:1100px){.pt-browser{grid-template-columns:200px minmax(0,1fr);grid-template-rows:minmax(0,1fr) minmax(0,1fr)}.pt-br-detail{grid-column:1 / -1}}.pt-screen-body{flex:1;min-height:0;display:flex;flex-direction:column;padding:16px 24px 20px}.pt-screen-body>.pt-browser{flex:1;height:auto}.pt-ds-board{color:var(--pt-dim);border-left:3px solid var(--pt-accent);padding-left:10px}.pt-ds:focus{outline:none}.app-root{position:relative;height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.app-main{flex:1;min-height:0;position:relative}.screen{height:100%;overflow-y:auto;overflow-x:hidden;background:radial-gradient(circle at 1px 1px,var(--dot) 1px,transparent 1.5px) 0 0 / 22px 22px,var(--bg)}.screen-fill{display:flex;flex-direction:column;overflow:hidden}.screen-fill .fill{flex:1;min-height:0;position:relative;overflow:auto}.pad{padding:24px}.narrow,.wide,.reading{margin:0 auto;padding:28px 28px 64px}.narrow{max-width:820px}.wide{max-width:1240px}.reading{max-width:860px}.stack{display:flex;flex-direction:column;gap:12px}.stack-lg{display:flex;flex-direction:column;gap:24px}.small{font-size:1rem}.ok-text{color:var(--ok)}.warn-text{color:var(--warn)}.loading-screen{height:100%;display:grid;place-items:center;color:var(--text-dim)}.crash{max-width:640px;margin:12vh auto 0;padding:0 24px}.crash pre{max-height:200px;overflow:auto;padding:10px 12px;background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;white-space:pre-wrap}.menu-screen{display:flex;flex-direction:column;align-items:center;padding:20px 28px 48px}.menu-top{width:100%;max-width:1100px;display:flex;justify-content:flex-end}.menu-account{display:flex;flex-direction:column;align-items:flex-end;gap:6px}.menu-hero{text-align:center;margin:2vh 0 4vh}.menu-hero .logo{filter:drop-shadow(0 6px 14px rgba(0,0,0,.35))}.menu-hero h1{margin:14px 0 6px;font-size:clamp(2rem,4.2vw,3rem);letter-spacing:-.02em}.tagline{margin:0;color:var(--text-dim);font-size:1.1rem}.mode-grid{width:100%;max-width:1100px;display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px}.mode-card{--mode-color: var(--accent);position:relative;display:flex;flex-direction:column;align-items:flex-start;gap:8px;padding:26px 24px 22px;text-align:left;color:var(--text);background:linear-gradient(180deg,color-mix(in srgb,var(--mode-color) 7%,var(--panel)),var(--panel));border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow);cursor:pointer;transition:transform .15s,border-color .15s,box-shadow .15s}.mode-card:hover{transform:translateY(-3px);border-color:var(--mode-color);box-shadow:var(--shadow),0 0 0 1px var(--mode-color)}.mode-card:active{transform:translateY(-1px)}.mode-icon{display:grid;place-items:center;width:58px;height:58px;border-radius:14px;color:var(--mode-color);background:color-mix(in srgb,var(--mode-color) 16%,transparent);border:1px solid color-mix(in srgb,var(--mode-color) 40%,transparent)}.mode-title{margin-top:6px;font-size:1.5rem;font-weight:800;letter-spacing:-.01em}.mode-blurb{color:var(--text-dim)}.mode-progress{width:100%;margin-top:10px;display:flex;flex-direction:column;gap:6px}.mode-progress .progress-fill{background:var(--mode-color)}.mode-summary{font-size:1rem}.mode-go{margin-top:6px;display:inline-flex;align-items:center;gap:6px;color:var(--mode-color);font-weight:700}.menu-links{margin-top:36px;display:flex;flex-wrap:wrap;justify-content:center;gap:12px}.avatar{flex:none;display:inline-grid;place-items:center;box-sizing:border-box;padding:0;line-height:1;border-radius:50%;font-weight:800;color:var(--accent-contrast);background:linear-gradient(135deg,var(--accent),color-mix(in srgb,var(--accent) 60%,var(--accent-2) 40%))}.profile-chip{display:flex;align-items:center;gap:12px;min-width:270px;padding:8px 16px 8px 10px;background:var(--panel);border:1px solid var(--border);border-radius:999px;box-shadow:var(--shadow)}.profile-chip-body{flex:1;display:flex;flex-direction:column;gap:3px}.profile-chip-top{display:flex;align-items:center;gap:8px}.profile-chip-name{max-width:14ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.profile-chip-badges{margin-left:auto;display:inline-flex;align-items:center;gap:4px;color:var(--accent);font-size:1rem;font-weight:700}.profile-chip .progress-label{margin-bottom:2px}.profile-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.profile-row{display:flex;align-items:center;gap:6px;padding:6px;background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);transition:border-color .15s}.profile-row:hover{border-color:var(--accent)}.profile-row.active{border-color:color-mix(in srgb,var(--accent) 60%,var(--border))}.profile-pick{flex:1;display:flex;align-items:center;gap:14px;padding:8px 10px;background:none;border:0;color:var(--text);text-align:left;cursor:pointer;border-radius:var(--radius-sm)}.profile-info{flex:1;display:flex;flex-direction:column;line-height:1.35}.profile-info strong{font-size:1.1rem}.import-list{margin:0;padding-left:1.2em}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:12px 0;border-top:1px solid var(--border)}.setting-row:first-child{border-top:0;padding-top:0}.setting-row:last-child{padding-bottom:0}.setting-text{flex:1;min-width:0}.setting-label{font-weight:700}.setting-hint{color:var(--text-dim);font-size:1rem;margin-top:2px}.setting-control{flex:none;display:flex;flex-direction:column;align-items:flex-end;gap:8px}.setting-note{margin-top:0}.segmented{display:inline-flex;gap:6px}.speed-control{display:flex;align-items:center;gap:12px;width:280px}.speed-readout{min-width:4.5ch;text-align:right;font-weight:700}.speed-presets{justify-content:flex-end;gap:4px}.shortcut-table{width:100%;border-collapse:collapse}.shortcut-table th,.shortcut-table td{padding:10px 16px;text-align:left;border-top:1px solid var(--border)}.shortcut-table thead th{border-top:0;color:var(--text-dim);font-size:1rem;text-transform:uppercase;letter-spacing:.06em}.shortcut-keys{white-space:nowrap;width:1%}.keys-joiner{margin:0 6px}.header-progress{width:220px}.tier-title{display:flex;align-items:baseline;gap:10px;margin:0 0 14px;font-size:1.35rem}.tier-num{font-size:1rem;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}.tier-count{margin-left:auto;font-size:1rem;font-weight:500}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px}.job-card{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:16px 18px;min-height:150px;text-align:left;color:var(--text);background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);cursor:pointer;transition:transform .14s,border-color .14s,background .14s}.job-card:hover{transform:translateY(-2px);border-color:var(--accent)}.job-card[data-status=completed]{border-color:color-mix(in srgb,var(--ok) 45%,var(--border))}.job-card[data-status=locked]{opacity:.62;cursor:not-allowed;background:color-mix(in srgb,var(--panel) 70%,var(--bg))}.job-card[data-status=locked]:hover{transform:none;border-color:var(--border)}.job-card-top{width:100%;display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}.job-xp{gap:4px}.job-title{font-size:1.1rem;font-weight:700;line-height:1.25}.job-client{font-size:1rem}.job-status{margin-top:auto;padding-top:6px}.status-dot{display:inline-grid;place-items:center;box-sizing:border-box;width:28px;height:28px;padding:0;line-height:1;border-radius:50%;border:1px solid var(--border-strong);color:var(--text-dim);background:var(--panel-2)}.status-available{color:var(--accent-2);border-color:color-mix(in srgb,var(--accent-2) 50%,transparent)}.status-completed{color:var(--bg);background:var(--ok);border-color:var(--ok)}.tag-row{display:flex;flex-wrap:wrap;gap:6px}.tag{padding:0 8px;border-radius:999px;border:1px solid var(--border);background:var(--bg-2);color:var(--text-dim);font-size:1rem}.stars{display:inline-flex;gap:2px}.star.on{color:var(--accent)}.star.off{color:var(--border-strong)}.job-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:24px;align-items:start}.job-tab-body{padding:22px 26px 26px}.job-side{position:sticky;top:90px}.facts{display:grid;grid-template-columns:auto 1fr;gap:8px 16px;margin:0 0 16px}.facts dt{color:var(--text-dim)}.facts dd{margin:0;text-align:right;display:flex;justify-content:flex-end;align-items:center;gap:5px}.chapter-summary{margin-top:0}.section-list{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:4px}.section-row{width:100%;display:flex;align-items:center;gap:12px;padding:10px 12px;color:var(--text);background:transparent;border:1px solid transparent;border-radius:var(--radius-sm);text-align:left;cursor:pointer;transition:background .12s,border-color .12s}.section-row:hover{background:var(--panel-2);border-color:var(--border)}.section-title{flex:1;font-weight:600}.section-meta{display:flex;align-items:center;gap:8px}.section-go{color:var(--text-dim)}.tick{flex:none;display:inline-grid;place-items:center;box-sizing:border-box;width:28px;height:28px;padding:0;border-radius:50%;border:1.5px solid var(--border-strong);color:var(--text-dim);font-size:1rem;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}.tick-num{display:block;line-height:1;transform:translateY(-.5px)}.tick svg{display:block}.tick.on{background:var(--ok);border-color:var(--ok);color:var(--bg)}.section-article{padding:8px 4px 0}.section-nav{display:flex;justify-content:space-between;align-items:center;gap:12px}.quiz-panel .panel-body{padding:20px 22px}