:root{--color-bg-app:#f4f6f5;--color-bg-surface:#fff;--color-bg-chat:#f0f3f4;--color-bg-selected:#e5eafb;--color-bg-hover:#f0f3f4;--color-text-primary:#15202a;--color-text-secondary:#56626c;--color-text-accent:#2446c4;--color-text-on-accent:#fff;--color-text-warning:#8f5b0c;--color-text-danger:#bc3129;--color-border-default:#d9dfe1;--color-border-strong:#808a92;--color-border-dropzone:#d9dfe1;--color-accent-default:#2446c4;--color-accent-hover:#203eac;--color-accent-active:#1b3595;--color-accent-subtle:#e5eafb;--color-focus-ring:#2446c4;--color-file-icon-bg:#2446c4;--color-file-icon-text:#fff;--color-overlay-scrim:#15202a66;--tone-neutral-bg:#d9dfe1;--tone-neutral-fg:#15202a;--tone-neutral-dot:#15202a;--tone-info-bg:#e5eafb;--tone-info-fg:#2446c4;--tone-info-dot:#2446c4;--tone-warning-bg:#faefd7;--tone-warning-fg:#8f5b0c;--tone-warning-dot:#a86d12;--tone-success-bg:#e1f2e7;--tone-success-fg:#18723e;--tone-success-dot:#1c7f46;--tone-danger-bg:#f8e1df;--tone-danger-fg:#bc3129;--tone-danger-dot:#bc3129;--font-family-sans:"Golos Text", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-family-mono:"JetBrains Mono", ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--space-2:2px;--space-4:4px;--space-6:6px;--space-8:8px;--space-10:10px;--space-12:12px;--space-16:16px;--space-20:20px;--space-24:24px;--space-32:32px;--size-layout-column-left:220px;--size-layout-column-right:250px;--size-layout-header-height:48px;--size-layout-composer-height:52px;--size-layout-message-max-width:500px;--size-layout-drawer-width:320px;--size-control-button-primary-height:36px;--size-control-button-height:32px;--size-control-button-header-height:28px;--size-control-input-height:32px;--size-control-touch-target-mobile:44px;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-pill:999px;--opacity-inactive-option:.6;--opacity-disabled:.5;--shadow-popover:0 4px 16px #15202a1f;--shadow-drawer:0 8px 32px #15202a29;--motion-fast:.12s;--motion-base:.2s}*,:before,:after{box-sizing:border-box}html,body,#app{height:100%;margin:0}body{font-family:var(--font-family-sans);color:var(--color-text-primary);background:var(--color-bg-app);-webkit-text-size-adjust:100%;font-size:13.5px;line-height:1.5}button,input,select,textarea{font:inherit;color:inherit}:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.btn{justify-content:center;align-items:center;gap:var(--space-4);min-height:var(--size-control-button-height);border:1px solid var(--color-border-default);border-radius:var(--radius-md);background:var(--color-bg-surface);color:var(--color-text-accent);cursor:pointer;text-align:left;overflow-wrap:anywhere;max-width:100%;padding:6px 12px;font-size:12.5px;font-weight:600;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover:not(:disabled):not([aria-disabled=true]){background:var(--color-bg-hover)}.btn--primary{background:var(--color-accent-default);border-color:var(--color-accent-default);color:var(--color-text-on-accent)}.btn--primary:hover:not(:disabled):not([aria-disabled=true]){background:var(--color-accent-hover)}.btn--selected{box-shadow:0 0 0 1px #fff,0 0 0 2px #2446c4}.btn--inactive,.btn[aria-disabled=true]{opacity:var(--opacity-inactive-option);cursor:default}.btn:disabled{opacity:var(--opacity-disabled);cursor:not-allowed}.btn--block{width:100%}.btn--big{min-height:var(--size-control-button-primary-height);font-size:13px}.btn--header{min-height:var(--size-control-button-header-height);color:var(--color-text-primary);font-size:12px;font-weight:500}.btn--danger{color:var(--color-text-danger);border-color:var(--color-text-danger)}.btn--link{background:0 0;border:0;min-height:0;padding:0}.input{width:100%;min-width:0;min-height:var(--size-control-input-height);border:1px solid var(--color-border-strong);border-radius:var(--radius-sm);background:var(--color-bg-surface);padding:5px 10px}.input[aria-invalid=true]{border-color:var(--color-text-danger)}.section-label{margin:var(--space-16) 0 var(--space-8);font-family:var(--font-family-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--color-text-secondary);font-size:11px;font-weight:400}.mono{font-family:var(--font-family-mono);font-variant-numeric:tabular-nums;font-size:12px}.error-text{color:var(--color-text-danger)}.visually-hidden{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{z-index:100;padding:var(--space-8);background:var(--color-bg-surface);position:absolute;top:0;left:-9999px}.skip-link:focus{left:var(--space-8)}@media (width<=767px){.btn,.input{min-height:var(--size-control-touch-target-mobile)}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}}