*,:before,:after{box-sizing:border-box}:root{--color-brand-base:#3b82f6;--color-brand-light:#60a5fa;--color-brand-dark:#2563eb;--color-brand-subtle-bg:#1a2744;--color-status-success:#10b981;--color-status-success-strong:#34d399;--color-text-on-success:#022c22;--color-bg-success-subtle:#064e3b;--color-border-success-subtle:#065f46;--color-status-error:#f87171;--color-status-error-strong:#ef4444;--color-text-on-error:#2d0000;--color-bg-error-subtle:#450a0a;--color-border-error-subtle:#7f1d1d;--color-bg-info-subtle:#1e2a4a;--color-border-info-subtle:#1d4ed8;--color-text-info:#93c5fd;--color-bg-warning-subtle:#422006;--color-border-warning-subtle:#92400e;--color-bg-base:#0f0f0f;--color-bg-surface:#1a1a1a;--color-text-primary:#f0f0f0;--color-text-muted:#9ca3af;--color-text-on-brand:#fff;--color-border-primary:#374151;--spacing-1:.25rem;--spacing-2:.5rem;--spacing-3:.75rem;--spacing-4:1rem;--spacing-5:1.25rem;--spacing-6:1.5rem;--spacing-8:2rem;--spacing-10:2.5rem;--spacing-12:3rem;--spacing-16:4rem;--spacing-20:5rem;--font-size-body:1rem;--font-size-heading-lg:clamp(1.5rem, 5vw, 2.5rem);--font-size-heading-sm:clamp(1.125rem, 3vw, 1.5rem);--font-weight-bold:700;--font-weight-semibold:600;--radius-sm:.375rem;--radius-md:.75rem;--radius-lg:1.25rem;--radius-pill:9999px;--shadow-sm:0 1px 3px 0 #0000004d, 0 1px 2px -1px #0000004d;--shadow-md:0 4px 6px -1px #0000004d, 0 2px 4px -2px #0000004d;--shadow-focus:0 0 0 3px #3b82f680;--shadow-focus-ring:0 0 0 2px var(--color-bg-surface), 0 0 0 5px var(--color-brand-base);--border-width-base:1px;--breakpoint-sm:480px;--breakpoint-md:768px;--size-auth-card:420px;--size-content-max:960px;--size-dropdown-max:16rem;--size-book-header-padding-y:.875rem;--size-step-bubble:2rem;--size-step-min-width:3.5rem;--size-step-connector-thickness:2px;--size-step-connector-min-width:.75rem;--duration-fast:.15s;--duration-base:.2s;--duration-spin:.6s;--easing-smooth:cubic-bezier(.4, 0, .2, 1)}@media (prefers-color-scheme:light){:root{--color-brand-base:#1e40af;--color-brand-light:#3b82f6;--color-brand-dark:#1e3a8a;--color-brand-subtle-bg:#eff6ff;--color-status-success:#10b981;--color-status-success-strong:#15803d;--color-bg-success-subtle:#f0fdf4;--color-border-success-subtle:#bbf7d0;--color-status-error:#dc2626;--color-status-error-strong:#b91c1c;--color-text-on-error:#fff;--color-bg-error-subtle:#fef2f2;--color-border-error-subtle:#fecaca;--color-bg-info-subtle:#eff6ff;--color-border-info-subtle:#bfdbfe;--color-text-info:#1e40af;--color-bg-warning-subtle:#fef9c3;--color-border-warning-subtle:#fde68a;--color-bg-base:#f8fafc;--color-bg-surface:#fff;--color-text-primary:#1e293b;--color-text-muted:#64748b;--color-text-on-brand:#fff;--color-border-primary:#e2e8f0;--shadow-sm:0 1px 3px 0 #0000001a, 0 1px 2px -1px #0000001a;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -2px #0000001a}}@media (prefers-contrast:more){:root{--color-text-muted:var(--color-text-primary);--color-border-primary:var(--color-text-primary)}}body{background:var(--color-bg-base);color:var(--color-text-primary);margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.6}a{color:var(--color-brand-base);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}:focus-visible{outline:2px solid var(--color-brand-base);outline-offset:2px;box-shadow:var(--shadow-focus)}.site-header.svelte-12qhfyh{background:var(--color-bg-surface);border-bottom:var(--border-width-base) solid var(--color-border-primary);z-index:10;position:sticky;top:0}.header-inner.svelte-12qhfyh{max-width:var(--size-content-max);padding:var(--spacing-3) var(--spacing-6);justify-content:space-between;align-items:center;gap:var(--spacing-4);margin:0 auto;display:flex}.brand.svelte-12qhfyh{font-size:var(--font-size-heading-sm);font-weight:var(--font-weight-bold);color:var(--color-text-primary);letter-spacing:-.01em;text-decoration:none}.brand.svelte-12qhfyh:hover{color:var(--color-brand-base);text-decoration:none}.auth-nav.svelte-12qhfyh{align-items:center;gap:var(--spacing-3);display:flex}.user-name.svelte-12qhfyh{font-size:var(--font-size-body);color:var(--color-text-muted);text-overflow:ellipsis;white-space:nowrap;max-width:200px;overflow:hidden}.btn-sign-in.svelte-12qhfyh{font-size:var(--font-size-body);font-weight:var(--font-weight-semibold);color:var(--color-brand-base);padding:var(--spacing-2) var(--spacing-4);border:var(--border-width-base) solid var(--color-brand-base);border-radius:var(--radius-md);min-height:var(--spacing-12);align-items:center;text-decoration:none;display:inline-flex}@media (prefers-reduced-motion:no-preference){.btn-sign-in.svelte-12qhfyh{transition:background var(--duration-fast) var(--easing-smooth), color var(--duration-fast) var(--easing-smooth)}}.btn-sign-in.svelte-12qhfyh:hover{background:var(--color-brand-base);color:var(--color-text-on-brand);text-decoration:none}.btn-sign-out.svelte-12qhfyh{font-size:var(--font-size-body);font-weight:var(--font-weight-semibold);color:var(--color-text-muted);border:var(--border-width-base) solid var(--color-border-primary);border-radius:var(--radius-md);padding:var(--spacing-2) var(--spacing-4);min-height:var(--spacing-12);cursor:pointer;background:0 0}@media (prefers-reduced-motion:no-preference){.btn-sign-out.svelte-12qhfyh{transition:border-color var(--duration-fast) var(--easing-smooth), color var(--duration-fast) var(--easing-smooth)}}.btn-sign-out.svelte-12qhfyh:hover{border-color:var(--color-status-error);color:var(--color-status-error)}.btn-calendar.svelte-12qhfyh{font-size:var(--font-size-body);font-weight:var(--font-weight-semibold);color:var(--color-brand-base);padding:var(--spacing-2) var(--spacing-4);border:var(--border-width-base) solid var(--color-brand-base);border-radius:var(--radius-md);min-height:var(--spacing-12);align-items:center;text-decoration:none;display:inline-flex}@media (prefers-reduced-motion:no-preference){.btn-calendar.svelte-12qhfyh{transition:background var(--duration-fast) var(--easing-smooth), color var(--duration-fast) var(--easing-smooth)}}.btn-calendar.svelte-12qhfyh:hover{background:var(--color-brand-base);color:var(--color-text-on-brand);text-decoration:none}