Soft Dark Simple Pricing

Act like a frontend developer with 15 years of experience. I want the exact same UI with 95-99% similarity.

Platform: This is a RESPONSIVE design — it should work on both mobile and desktop. Use mobile layout patterns (bottom nav, stacked content) for mobile, and desktop layout patterns (sidebar/nav bar, wider content areas) for web.

Design a pricing screen with two plan cards (Free and Pro) stacked vertically, the Pro card visually highlighted with a "Popular" chip, each listing four features with small check icons.

Visual style — Soft Dark:
A dark canvas with slightly lighter elevated surfaces — elevation is shown by surface tone, never by shadow. Hairline 1px borders at low opacity. Cards 16px radius, buttons 20px. Outline icons, 2px stroke. Restrained, comfortable for night use — no glow, no neon.

Color palette — Warm Coal:
Background #17140F, surfaces #201C16. Text #F2EDE4 / rgba(242,237,228,0.62) / rgba(242,237,228,0.38). Borders rgba(242,237,228,0.09). Accent amber #D99A4E.

Typography — use these exact font families:
- Headings / display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif
- Body / labels: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif

Commit fully to this style — it should be unmistakable at a glance. Use realistic content, not placeholder text. Keep animations smooth (200ms ease-out).