Call to action

import type { ReactNode } from "react";

const variants = {
  surface: "border-(--tui-cta-banner-surface-border) bg-(--tui-cta-banner-surface-bg) text-(--tui-cta-banner-surface-fg) [--tui-cta-banner-muted:var(--tui-cta-banner-surface-muted)]",
  solid: "border-transparent bg-(--tui-cta-banner-solid-bg) text-(--tui-cta-banner-solid-fg) [--tui-cta-banner-muted:color-mix(in_srgb,var(--tui-cta-banner-solid-fg)_72%,transparent)]",
};

export interface CtaBannerProps {
  variant?: keyof typeof variants;
  title: ReactNode;
  description?: ReactNode;
  /** The buttons. */
  children?: ReactNode;
  className?: string;
}

/** A band that asks for one thing: start a trial, book a call. It stacks when it runs out of room. */
export function CtaBanner({ variant = "surface", title, description, children, className }: CtaBannerProps) {
  return (
    <section
      data-slot="cta-banner"
      className={[
        "@container w-full rounded-(--tui-cta-banner-radius) border-solid border-(length:--tui-cta-banner-border-width) p-(--tui-cta-banner-padding) font-(family-name:--tui-font)",
        variants[variant],
        className,
      ]
        .filter(Boolean)
        .join(" ")}
    >
      <div className="flex flex-col gap-(--tui-cta-banner-gap) @lg:flex-row @lg:items-center @lg:justify-between">
        <div className="flex min-w-0 flex-col gap-1.5">
          <h2 className="m-0 text-(length:--tui-cta-banner-title-size) leading-tight font-(--tui-cta-banner-title-weight) tracking-tight">{title}</h2>
          {description && <p className="m-0 text-(length:--tui-cta-banner-font-size) leading-snug text-(--tui-cta-banner-muted)">{description}</p>}
        </div>
        {children && <div className="flex shrink-0 flex-wrap items-center gap-2">{children}</div>}
      </div>
    </section>
  );
}

:root {
  color-scheme: light;
  --tui-bg: #ffffff;
  --tui-fg: #0a0a0a;
  --tui-muted: #f5f5f5;
  --tui-muted-fg: #737373;
  --tui-border: #e5e5e5;
  --tui-primary: #171717;
  --tui-primary-fg: #fafafa;
  --tui-ring: #a3a3a3;
  --tui-success: #16a34a;
  --tui-warning: #d97706;
  --tui-danger: #dc2626;
  --tui-radius: 8px;
  --tui-border-width: 1px;
  --tui-space: 4px;
  --tui-shadow: none;
  --tui-font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --tui-text: 14px;
  --tui-duration: 150ms;

  /* Call to action */
  --tui-cta-banner-padding: calc(var(--tui-space) * 8);
  --tui-cta-banner-gap: calc(var(--tui-space) * 5);
  --tui-cta-banner-radius: calc(var(--tui-radius) * 2);
  --tui-cta-banner-border-width: var(--tui-border-width);
  --tui-cta-banner-title-size: 22px;
  --tui-cta-banner-title-weight: 600;
  --tui-cta-banner-font-size: 15px;
  --tui-cta-banner-surface-bg: var(--tui-muted);
  --tui-cta-banner-surface-fg: var(--tui-fg);
  --tui-cta-banner-surface-muted: var(--tui-muted-fg);
  --tui-cta-banner-surface-border: var(--tui-border);
  --tui-cta-banner-solid-bg: var(--tui-fg);
  --tui-cta-banner-solid-fg: var(--tui-bg);
}

.dark,
[data-theme="dark"] {
  color-scheme: dark;
  --tui-bg: #0a0a0a;
  --tui-fg: #fafafa;
  --tui-muted: #1c1c1c;
  --tui-muted-fg: #a3a3a3;
  --tui-border: #2a2a2a;
  --tui-primary: #fafafa;
  --tui-primary-fg: #171717;
  --tui-ring: #737373;
  --tui-success: #22c55e;
  --tui-warning: #f59e0b;
  --tui-danger: #ef4444;
}