Tesla's website is an exercise in radical subtraction — a digital showroom where the product is everything and the interface is almost nothing. The page opens with a full-viewport hero that fills the entire screen with cinematic car photography: three vehicles arranged on polished concrete against a hazy cityscape sky, with a single model name floating above in translucent white type. There are no decorative borders, no gradients, no patterns, no shadows. The UI exists only to provide just enough navigational structure to get out of the way. Every pixel that isn't product imagery is white space, and that restraint is the design system's most powerful statement.

The color philosophy is almost ascetic: a single blue (`#3E6AE1`) for primary calls to action, three shades of dark gray for text hierarchy, and white for everything else. The entire emotional weight is carried by photography — sprawling landscape shots, studio-lit vehicle profiles, and atmospheric environmental compositions that stretch edge-to-edge across each viewport-height section. The UI chrome dissolves into the imagery. The navigation bar floats above the hero with no visible background, border, or shadow — the TESLA wordmark and five navigation labels simply exist in the space, trusting the content beneath them to provide sufficient contrast.

Typography recently transitioned from Gotham to Universal Sans — a custom family split into "Display" for headlines and "Text" for body/UI elements — unifying the website, mobile app, and in-car software into a single typographic voice. The Display variant renders hero titles at 40px weight 500, while the Text variant handles everything from navigation (14px/500) to body copy (14px/400). The font carries a geometric precision with slightly humanist terminals that feels engineered rather than designed — exactly matching Tesla's brand identity of technology that doesn't need to announce itself. There are no text shadows, no text gradients, no decorative type treatments. Every letterform earns its place through clarity alone.

**Key Characteristics:**

| Role | Size | Weight | Line Height | Letter Spacing | Notes |

|------|------|--------|-------------|----------------|-------|

| Hero Title | 40px (2.50rem) | 500 | 48px (1.20) | normal | Universal Sans Display, white on dark hero imagery |

| Product Name | 17px (1.06rem) | 500 | 20px (1.18) | normal | Universal Sans Text, model names in nav panel and cards |

| Nav Item | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, primary navigation labels |

| Body Text | 14px (0.88rem) | 400 | 20px (1.43) | normal | Universal Sans Text, paragraph and descriptive content |

| Button Label | 14px (0.88rem) | 500 | 16.8px (1.20) | normal | Universal Sans Text, CTA button text |

| Sub-link | 14px (0.88rem) | 400 | 20px (1.43) | normal | Tertiary links (Learn, Order, Experience) |

| Promo Text | 22px (1.38rem) | 400 | 20px (0.91) | normal | White promotional text on hero ("0% APR Available") |

| Category Label | 16px (est.) | 500 | — | normal | White text labels on category cards ("Sport Sedan") |

All buttons use barely-rounded rectangles (4px border-radius) — creating a sharp, technical aesthetic that mirrors the precision of the vehicles.

**Primary CTA** — The main action button:

**Secondary CTA** — The alternative action button:

**Nav Button** — Top navigation items:

**Text Link** — In-content actions:

**Vehicle Card** (Navigation panel):

**Category Card** (Homepage lower section):

Tesla uses whitespace as a luxury signal. The generous vertical spacing between sections (each section is a full viewport height) means you can only see one "message" at a time — one car, one model name, one CTA pair. This creates a gallery-like browsing experience where each scroll is a deliberate transition, not a continuous feed. White space is not empty — it's the frame that elevates each vehicle to the status of art piece.

| Value | Context |

|-------|---------|

| 0px | Most elements — sharp edges are the default |

| 4px | Buttons (primary, secondary, nav items) — barely perceptible rounding |

| ~12px | Category cards — noticeable but restrained rounding on larger surfaces |

| 50% | Carousel dot indicators — perfect circles |

| Level | Treatment | Use |

|-------|-----------|-----|

| Level 0 (Flat) | No shadow, no border | Default state for all elements — cards, panels, buttons at rest |

| Level 1 (Frost) | `rgba(255,255,255,0.75)` backdrop | Navigation bar on scroll — frosted glass transparency |

| Level 2 (Overlay) | `rgba(128,128,128,0.65)` | Modal overlays and region/cookie popups |

| Level 3 (Subtle) | `rgba(0,0,0,0.05)` | Minimal shadow hints on rare hover states |

Tesla's approach to elevation is essentially "none." The site avoids box-shadows entirely in its primary interface. Depth is communicated through three alternative strategies:

1. **Z-index layering**: The sticky navigation sits above hero content through positioning, not shadow

2. **Opacity-based transparency**: The frosted glass nav and overlay modals use background-color opacity rather than shadow to indicate layering

3. **Photography-as-depth**: The full-bleed images create their own visual depth through perspective, lighting, and composition — making UI shadows redundant

| Name | Width | Key Changes |

|------|-------|-------------|

| Mobile | <768px | Single-column layout, hamburger nav replaces horizontal labels, hero text scales to ~28px, CTA buttons stack vertically, category cards become full-width |

| Tablet | 768-1024px | 2-column nav panel, hero maintains full-viewport height, CTAs remain side-by-side, reduced horizontal padding |

| Desktop | 1024-1440px | Full horizontal nav, 3-column vehicle grid in dropdown, hero at 40px, side-by-side CTAs at 200px/160px width |

| Large Desktop | >1440px | Content remains centered, hero photography scales to fill wider viewports, max-width container for nav panel content |

When refining existing screens generated with this design system:

1. Focus on ONE component at a time — Tesla's system is so minimal that each element must be pixel-perfect

2. Reference specific color names and hex codes from this document — there are only 6-7 colors in the entire system

3. Use natural language descriptions, not CSS values — "barely rounded corners" not "border-radius: 4px"

4. Describe the desired "feel" alongside specific measurements — "gallery-like silence between sections" communicates the whitespace philosophy better than "margin-bottom: 100vh"

5. Always verify that photography is doing the emotional heavy-lifting — if the UI itself feels "designed," it's too much