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.header-inner-learn{min-height:var(--header-h);box-sizing:border-box;justify-content:flex-end;align-items:center;width:100%;padding-inline:1.5rem;display:flex}.header-learn-spacer{display:none}.header-learn-right{align-items:center;gap:1rem;display:flex}.brand-link-compact .brand-word{font-size:1.15rem}.learn-sidebar-brand{justify-content:space-between;align-items:center;gap:.35rem;min-height:40px;padding:.5rem .75rem .35rem;display:flex}.pill{letter-spacing:.02em;color:var(--color-ink-secondary);background:var(--color-surface-sunken);border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.2rem .5rem;font-size:.7rem;font-weight:600}.inline-pill{margin-bottom:1rem;display:inline-block}.btn{border-radius:var(--radius-lg);font-family:var(--font-body);font-weight:600;font-size:var(--text-body-sm);cursor:pointer;min-height:44px;transition:background var(--duration-fast) var(--ease-out), border-color var(--duration-fast) var(--ease-out), color var(--duration-fast) var(--ease-out);border:1px solid #0000;justify-content:center;align-items:center;gap:.4rem;padding:.7rem 1.35rem;display:inline-flex;text-decoration:none!important}.btn:active{opacity:.92}.btn:disabled{opacity:.55;cursor:not-allowed}.btn-sm{min-height:32px;padding:.35rem .75rem;font-size:.8125rem}.btn-primary{background:var(--color-btn-primary);border-color:var(--color-btn-primary);color:var(--color-on-accent)!important}.btn-primary:hover:not(:disabled){background:var(--color-btn-primary-hover);border-color:var(--color-btn-primary-hover)}.btn-ghost{border-color:var(--color-slate);background:0 0;color:var(--color-slate)!important}.btn-ghost:hover:not(:disabled){background:var(--color-surface-sunken)}html.dark .btn-ghost,html[data-theme=dark] .btn-ghost{border-color:var(--color-border-strong);color:var(--color-ink)!important}html.dark .btn-ghost:hover:not(:disabled),html[data-theme=dark] 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.85rem}.hero-title{font-size:clamp(1.75rem,8vw,2.15rem)}}:root{--background:var(--color-surface);--foreground:var(--color-ink);--card:var(--color-surface-raised);--card-foreground:var(--color-ink);--popover:var(--color-surface-raised);--popover-foreground:var(--color-ink);--primary:var(--color-slate);--primary-foreground:#fff;--secondary:var(--color-surface-sunken);--secondary-foreground:var(--color-ink);--muted:var(--color-surface-sunken);--muted-foreground:var(--color-ink-muted);--accent:#299a8d;--accent-foreground:#0d4a44;--destructive:var(--color-danger);--border:#919eab3d;--input:#c4cdd5;--ring:#161c24;--chart-1:var(--color-accent);--chart-2:var(--color-info);--chart-3:var(--color-success);--chart-4:var(--color-warning);--chart-5:var(--color-ink-secondary);--radius:.375rem;--sidebar:var(--color-surface);--sidebar-foreground:var(--color-ink);--sidebar-primary:var(--color-ink);--sidebar-primary-foreground:var(--color-surface);--sidebar-accent:var(--color-surface-sunken);--sidebar-accent-foreground:var(--color-ink);--sidebar-border:#e8ecf0;--sidebar-ring:var(--color-ink)}.dark{--background:#161c24;--foreground:#f4f6f8;--card:#1c2430;--card-foreground:#f4f6f8;--popover:#1c2430;--popover-foreground:#f4f6f8;--primary:#299a8d;--primary-foreground:#fff;--secondary:#2a3441;--secondary-foreground:#f4f6f8;--muted:#2a3441;--muted-foreground:#919eab;--accent:#299a8d;--accent-foreground:#fff;--destructive:#c23b3b;--border:#3a4553;--input:#637381;--ring:#299a8d;--sidebar:#161c24;--sidebar-foreground:#f4f6f8;--sidebar-primary:#299a8d;--sidebar-primary-foreground:#fff;--sidebar-accent:#2a3441;--sidebar-accent-foreground:#f4f6f8;--sidebar-border:#3a4553;--sidebar-ring:#299a8d}@property 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--tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-ease{syntax:"*";inherits:false}