:root{--rk-bg:#101012;--rk-surface:#1a1a1d;--rk-surface-2:#232326;--rk-border:rgba(255, 255, 255, 0.09);--rk-border-strong:rgba(255, 255, 255, 0.16);--rk-text:#f4f4f5;--rk-muted:#a1a1aa;--rk-accent:var(--rk-accent-custom, #6366f1);--rk-accent-contrast:var(--rk-accent-contrast-custom, #ffffff);--rk-tint:color-mix(in srgb, var(--rk-accent) 12%, transparent);--bg-primary:var(--rk-bg);--bg-secondary:var(--rk-surface);--bg-tertiary:var(--rk-surface-2);--text-primary:var(--rk-text);--text-secondary:var(--rk-muted);--border-color:var(--rk-border);--card-bg:var(--rk-surface);--navbar-bg:var(--rk-bg);--accent-color:var(--rk-accent);--user-message-bg:var(--rk-accent);--user-message-text:var(--rk-accent-contrast);--radius-xl:16px}[data-theme=light]{--rk-bg:#fafafa;--rk-surface:#ffffff;--rk-surface-2:#f4f4f5;--rk-border:rgba(0, 0, 0, 0.08);--rk-border-strong:rgba(0, 0, 0, 0.14);--rk-text:#18181b;--rk-muted:#71717a;--rk-accent:var(--rk-accent-custom, #4f46e5);--rk-accent-contrast:var(--rk-accent-contrast-custom, #ffffff);--rk-tint:color-mix(in srgb, var(--rk-accent) 8%, transparent);--bg-primary:var(--rk-bg);--bg-secondary:var(--rk-surface);--bg-tertiary:var(--rk-surface-2);--text-primary:var(--rk-text);--text-secondary:var(--rk-muted);--border-color:var(--rk-border);--card-bg:var(--rk-surface);--navbar-bg:var(--rk-bg);--accent-color:var(--rk-accent);--user-message-bg:var(--rk-accent);--user-message-text:var(--rk-accent-contrast)}[data-theme=light] html,html,html[data-theme=light]{background-image:none!important;background-color:var(--rk-bg)!important}body{background-color:var(--rk-bg)!important}.message.user .message-content{background:var(--rk-accent);color:var(--rk-accent-contrast);padding:11px 16px;border-radius:16px;border-bottom-right-radius:5px;box-shadow:none;line-height:1.55}.message.user .message-content a{color:var(--rk-accent-contrast);text-decoration:underline}.message.assistant .message-content{background:0 0;line-height:1.7}.chat-header,.chat-header.scrolled,[data-theme=dark] .chat-header,[data-theme=dark] .chat-header.scrolled{background:var(--rk-bg)!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important;border-bottom:1px solid var(--rk-border);box-shadow:none}.input-group,[data-theme=dark] .input-group{background:var(--rk-surface);backdrop-filter:none;-webkit-backdrop-filter:none;border:1px solid var(--rk-border);border-radius:16px;box-shadow:0 1px 2px rgba(0,0,0,.04);transition:border-color .15s ease,box-shadow .15s ease}.input-group:hover,[data-theme=dark] .input-group:hover{border-color:var(--rk-border-strong)}.input-group:focus-within,[data-theme=dark] .input-group:focus-within{border-color:var(--rk-border-strong);box-shadow:none}.btn-send,.btn-send:not(:disabled){background:var(--rk-accent)!important;background-image:none!important;color:var(--rk-accent-contrast)!important;border-radius:999px;box-shadow:none}.btn-send:not(:disabled):hover{filter:brightness(1.08)}.btn-send:disabled{opacity:.35}.inline-suggestion-chip,[data-theme=dark] .inline-suggestion-chip{background:var(--rk-surface);backdrop-filter:none;-webkit-backdrop-filter:none;border:1px solid var(--rk-border);border-radius:999px;color:var(--rk-muted);height:30px;font-size:12.5px}.inline-suggestion-chip:hover,[data-theme=dark] .inline-suggestion-chip:hover{border-color:var(--rk-accent);color:var(--rk-accent);background:var(--rk-tint)}.welcome-suggestion-chip,[data-theme=dark] .welcome-suggestion-chip{height:auto;min-height:30px;line-height:1.5;padding:9px 14px;align-items:center}.message-action-btn{border-radius:7px}.message-action-btn:hover{background:var(--rk-tint);color:var(--rk-accent);opacity:1}@media (prefers-reduced-motion:reduce){.inline-suggestion-chip,.input-group{transition:none}}