# MUST OBEY — Mobile-first build requirements
This app's PRIMARY surface is a mobile phone. Build it impeccably on mobile FIRST, then verify on tablet and desktop. Treat the rules below as non-negotiable hard constraints, not suggestions.
## Viewports to verify (every screen, every state)
- 320 px, 360 px, 375 px, 390 px, 414 px, 480 px
- 768 px, 834 px (iPad portrait / Pro 11)
- 1024 px, 1280 px, 1440 px, 1920 px, 2560 px
- Plus: 200% browser zoom, landscape orientation on every mobile width, iPhone with safe-area insets visible
## Hard layout rules
- Mobile-first CSS. Default styles target mobile; `@media (min-width: ...)` for larger viewports.
- Use `dvh` and `svh` instead of `vh` for full-height surfaces (iOS Safari URL-bar bug).
- Use `clamp()` for fluid typography across all viewports.
- Prefer container queries (`@container`) over media queries for component-level responsiveness.
- Use `min(100%, ...)` widths so content never overflows. Zero horizontal overflow at any viewport.
- Add `` to every page.
- Apply `padding: max(safe-area-inset-X, fallback)` on every edge-bleeding container so notched iPhones in landscape never clip content.
- Wide tables and code blocks scroll INSIDE their container (`overflow-x: auto`), never push the body.
- Use `background-attachment: scroll` on mobile, not `fixed` (iOS Safari repaint bug).
- Avoid `backdrop-filter` on animated elements. Use it sparingly on static surfaces only.
- **Canvas Scaling**: Canvases must dynamically scale with window resize events and properly handle high-DPI screens (`window.devicePixelRatio`). Set physical dimensions (`canvas.width`/`canvas.height`) using pixel ratio and render relative to this grid, using CSS to control responsive viewport scaling.
- **Robust Storage**: Every access to `localStorage`/`sessionStorage` (especially `JSON.parse` of loaded state or writes) MUST be wrapped in a `try-catch` block to handle disabled storage, private browsing mode, quota limits, or corrupted JSON gracefully. Fall back to a robust in-memory object store.
## Touch & accessibility
- Tap targets ≥ 44 × 44 px on touch (Apple HIG). Increase to 48 px under `@media (hover: none) and (pointer: coarse)`.
- All interactive controls reachable by keyboard with a visible focus ring; respect `:focus-visible`.
- Color contrast ≥ 4.5:1 for body text, 3:1 for UI components.
- All images have meaningful `alt`. Decorative images use `alt=""`.
- Respect `prefers-reduced-motion: reduce` — zero animation durations under that query.
- Forms validate inline; error messages are specific, not "Invalid input".
- Modals: focus trap, `Esc` closes, `role="dialog"`, `aria-modal="true"`, focus restored on close.
## Performance bar (Lighthouse mobile, throttled 3G/4G)
- LCP < 2.5 s · INP < 200 ms · CLS < 0.1
- JS bundle gzip < 200 KB mobile-first; lazy-load non-critical screens via `React.lazy` / dynamic imports.
- No render-blocking resources above the fold.
- Images: WebP/AVIF preferred, `loading="lazy"`, explicit `width`/`height` attributes (zero CLS), `srcset` for retina.
- Videos: `preload="metadata"`, low-resolution poster, max 720p mobile fallback. Never autoplay with audio.
- Fonts: `font-display: swap`; preload only the one used above the fold.
- Smooth scroll honoured via CSS `scroll-behavior: smooth` with reduced-motion fallback.
## Pre-ship mobile checklist (the deployer MUST verify before declaring done)
1. Open at 375 px in DevTools — every screen scrolls vertically only; zero horizontal scroll.
2. Browser zoom 200% — layout reflows without overlap.
3. iPhone Safari with the URL bar visible AND landscape — no content under the home indicator; no notch clipping.
4. iPad portrait (768 px) and landscape (1024 px) — no awkward gaps; tablet-specific breakpoints land cleanly.
5. Tap every interactive element with a thumb at real-device size — every target is easy to hit.
6. `prefers-reduced-motion: reduce` — every transition / animation skips cleanly, scroll-behavior becomes instant.
7. Lighthouse mobile score ≥ 90 across all 4 categories.
8. Zero `console.error` and zero CLS shift in real-device testing on a mid-tier Android (e.g. Pixel 6a) and an iPhone SE.
---
The original template starts below. All rules above apply on TOP of whatever this template specifies.
---
# Build Prompt — Tech Conference Event
Paste this into Google AI Studio's **Build** function. It is self-contained — every section below is part of the instructions.
_Source reference: https://lovable.dev/templates/websites/events/summit-tech-conference-event-template_
---
## 1. Project
Build a **Events** named **Tech Conference Event**.
One-line description: _Professional multi-page conference site_
**What it is:**
This template gives you a polished, 13-page tech conference website that looks like it was built by an agency—and you don't need design skills or coding experience to make it work. The deep teal and warm gold color palette sets a premium tone from the first scroll.
The technical parts are already handled. Responsive layouts that adapt from desktop tables to mobile cards, a sticky navigation bar with mobile hamburger menu, image lazy loading, and SEO-friendly meta tags—all done. You can focus on filling in your event details and getting registrations.
Thirteen pages come ready to go: a homepage with magazine-style hero and diagonal accent stripes, session and workshop pages, a 35-speaker directory, tiered sponsor grid, photo gallery, blog page, enterprise landing page, demo request form, login page, and legal pages—all pre-built with responsive layouts and interactive hover effects.
Instead of hiring a developer for weeks of custom work or wrestling with a generic page builder that can't handle speaker directories and session schedules, you get a purpose-built event site with sponsor tiers, session detail pages, and speaker profiles—all customizable and ready to launch.
## 2. Target audience
- Event organizers launching their first tech conference who need a professional site fast—not a landing page that screams "template"
- Agency professionals building event websites for clients who expect custom quality on template timelines and budgets
- Community leaders running meetups or summits who lose credibility with basic event pages—this builds the trust that fills seats
- Marketing managers tasked with a conference microsite who can't wait for engineering to free up—get it done yourself in hours
- Startup founders hosting product launch events who need sponsor visibility, speaker showcases, and session schedules in one place
- Nonprofit organizers running fundraising galas or industry events who need tiered sponsor placement without paying for custom development
## 3. Core value propositions
Surface these clearly through copy, visual emphasis, and section ordering — they are the reasons users pick this product.
- **Complete 13-Page Conference Site** — Launch a full event presence with sessions, speakers, sponsors, and legal pages—ready in hours, not weeks.
- **Professional Speaker Directory** — Showcase 35 speakers with profiles, social links, and session connections that build attendee trust.
- **Tiered Sponsor Showcase** — Present diamond, platinum, and gold sponsors with visibility that justifies premium placement pricing.
- **Mobile-Ready Responsive Layouts** — Session tables transform into mobile cards automatically—attendees find what they need on any device.
- **Premium Visual Polish** — Magazine-style hero, diagonal accent stripes, and grayscale-to-color hover effects signal event quality.
## 4. Features to build
**Product features:**
Production-ready features built with modern tech stack for exceptional performance and user experience
- Magazine-Style Hero Section
- Responsive Sessions Table
- Speaker Card Interactions
- Three-Tier Sponsor Grid
- Enterprise Landing Page
- Five-Field Lead Capture Form
- Sticky Navigation with Mobile Menu
- Photo Gallery with Hover Effects
- SEO-Optimized Meta Tags
- Blog and Announcement System
- Session Detail Pages
- Legal Pages Included
## 4b. Required services & integrations
List the back-end services this template needs to function. If a service is not needed, say so explicitly — silence is ambiguous.
- **Auth — Optional.** Account-less ticket purchase by email is the default; full accounts only for ticket-holder dashboards.
- **Database — Required.** Events, ticket types, attendees, RSVPs, dietary/accessibility notes.
- **File storage — Optional.** Event photos, speaker headshots, downloadable schedule PDFs.
- **Payments — Required.** Stripe Checkout with tax + fee handling. Refund flow.
- **Transactional email — Required.** Ticket confirmation with QR, calendar invite (.ics), 7-day-before reminder, day-of reminder.
- **External APIs / third-party services:**
- Calendar (Google/iCal) for .ics generation
- Maps for venue
- Apple Wallet / Google Wallet for tickets
**Environment variables to expose in the build:** mark every secret (API key, DB URL, JWT secret, Stripe key, S3 credential) as a clearly named `.env` variable — never hard-code. Include a `.env.example` with the full list.
**Auth + data privacy reminders:** never log secrets · never store passwords in plain text · use HTTPS everywhere · hash + salt with bcrypt or argon2 · refresh tokens with rotation · honor a 'delete my account' request inside the UI.
## 5. Use cases & content to include
Build dedicated UI sections or pages for each of these — they tell you what content the page must support.
- **Tech Conferences and Developer Summits** — Build out a full conference presence with session schedules, speaker bios, and sponsor placement. The sessions table switches between a clean desktop grid and stacked mobile cards so attendees find what they need on any device. A credible event site is what turns "maybe I'll attend" into a registration—and what convinces sponsors their logo placement is worth the investment.
- **Product Launch Events** — Showcase your product launch with an enterprise landing page, a blog post for announcements, and a demo request form that captures leads. The magazine-style hero section with full-bleed photography and diagonal accent stripes creates the kind of first impression that signals you're serious. Companies that present a polished event experience attract higher-quality attendees and stronger media coverage.
- **Industry Meetups and Community Events** — Give your tech conference or live event a permanent home online with a speaker directory, session archive, and photo gallery. The gallery's hover zoom effects and the speaker cards' grayscale-to-color transitions make browsing feel engaging—not static. A dedicated site builds long-term community identity that a simple event listing page can't match.
- Sponsored Summits and Partner Events
- Present sponsors across diamond, platinum, and gold tiers with a grid layout that gives top-tier partners the visibility they're paying for. The tiered sponsor grid makes it easy to show prospects exactly where their brand will appear. Clearer sponsor visibility helps you close sponsorship deals faster—and justify higher pricing for premium placement.
- See yourself in one of these? Remix this template and start building.
- What You Can Build
- This template gives you the foundation for:
- A tech conference site with 15 sessions, 35 speaker profiles, and a three-tier sponsor showcase—all linked and navigable from day one
- A product launch microsite with an enterprise landing page, demo request form, blog announcements, and a photo gallery that makes your event feel real
- A recurring meetup hub with speaker directories, session archives, and legal pages so your community has a credible, permanent home online
## 6. Recommended page structure
Generate the following sections in this order. Adjust labels to fit the brand voice, but keep the structural intent.
1. Hero with event name, date, location, primary CTA.
2. Schedule / agenda.
3. Speakers or guests (if applicable).
4. Venue / location section with map.
5. RSVP or ticketing form.
6. Gallery (if appropriate).
7. Footer.
## 6b. First-visit onboarding
Show a **first-visit onboarding** the first time a visitor lands on the site
(detect via `localStorage` flag; do not show on return visits). Keep it
short — three steps maximum — and respectful: visitors can dismiss at any
time and revisit later from a `?` icon in the header.
**Format:** a polished modal *or* a 3-step inline tour, designed to match the
overall visual style of the template (don't bolt on a generic stepper UI).
On mobile, full-screen sheet that slides up.
**Required content — three slides:**
1. **What this is.**
- One-line headline: "Welcome to *Tech Conference Event* — a template for Professional multi-page conference site."
- One paragraph (max 60 words) explaining what the template demonstrates,
who it's for, and what you'd typically use it for.
- Visual: a small annotated screenshot of the page they're about to see,
OR a 4-frame storyboard of key sections.
2. **What to try.**
- 2–3 specific things the visitor should look at to understand the design
(e.g. "Open a section to see the booking flow", "Hover the gallery for
captions", "Resize the window — every layout is fluid").
- Reference real elements on the actual page so the visitor learns by doing,
not by reading.
3. **How to remix this.**
- A direct CTA: "Use this template" → links to Lovable / AI Studio Build
remix entry point.
- Below: 3 short bullets on how to make it yours — e.g.
• "Swap the copy in `data/content.{ts,json}` for your own."
• "Replace the imagery in `/public/images/` (we use AVIF + WebP)."
• "Connect your services using the env-var list in section 4b above."
- Plus a quieter secondary action: "Just looking — close" (closes modal,
remembers preference in localStorage, never auto-shows again).
**Persistent re-entry point:**
A small "?" icon in the top-right header next to the primary nav. Click → reopens the onboarding from slide 1. Tooltip: "How this template works".
**Accessibility:**
- Trap focus inside the modal while open
- `Esc` closes
- All controls reachable by keyboard, visible focus ring
- Heading hierarchy: modal title is `h1` inside the dialog
- `role="dialog"` + `aria-modal="true"` + `aria-labelledby`
- Restore focus to the trigger (or to ``) on close
- Respect `prefers-reduced-motion` — fade in/out only, no large transforms
**Copy tone:**
Warm and direct, not corporate. Avoid "Welcome to your dashboard" language.
Avoid all caps. Use the same voice as the rest of the template's copy.
**Don't:**
- Don't gate content behind the modal. The page below must be fully scrollable.
- Don't show the modal again on return visits. Use `localStorage['onboarding-seen']`.
- Don't include marketing CTAs unrelated to remixing (no newsletter signup, no
"follow us on X" — those live elsewhere).
## 7. Design language
- **Mood:** Celebratory or focused depending on event type; always image-first.
- **Typography:** Display serif or expressive sans for event name; clean body sans. Use a clear modular scale (e.g. 12 / 14 / 16 / 20 / 24 / 32 / 48 / 64 px) and tight tracking on display sizes.
- **Palette:** Aligned with event vibe — warm for weddings, technical for conferences.
- **Spacing:** consistent 4-px base. Generous whitespace — let the content breathe.
- **Radius:** consistent token set (e.g. 6 / 12 / 20 px). Don't mix arbitrary values.
- **Shadows:** subtle, layered. Avoid heavy drop-shadows.
- **Imagery:** Aspirational hero imagery matching the event genre.
- **Motion:** purposeful — entrance fades, hover lifts, page transitions. Respect `prefers-reduced-motion`. No bouncing splash animations.
## 8. Content generation rules
- Write **realistic, specific copy**. NO Lorem Ipsum. NO generic placeholders like 'Your tagline here'.
- Invent plausible names, dates, locations, prices, quotes, testimonials and product details that fit the domain.
- Tone should match the audience above — confident, specific, free of buzzwords.
- Headlines: punchy and concrete. No 'Empower your business' filler.
- Body copy: short paragraphs (2–4 sentences). Use lists where appropriate.
- All numbers, stats, and metrics must look plausible for the domain.
## 8a. Seed content (use these specific examples)
Anchor the generated copy in the concrete data below. Use these names, numbers, dates, and snippets verbatim where helpful, or generate close variants that sit in the same world.
**Event identity:** Convene · Open Source Summit · October 22-23, 2026 · Amsterdam · 1,200 attendees
**Speaker lineup (12 featured):**
- Linus Torvalds — keynote
- Mitchell Hashimoto (HashiCorp founder, now Ghostty)
- Carl Meyer (Astral / Ruff)
- Hadley Wickham (RStudio / Posit)
- Sara Drasner (Google, Web Platform)
- Drew DeVault (sourcehut)
- Evan You (Vue, Vite)
- Asia Lyons (Postmark / Maintainer)
- Jordan Walke (React creator)
- Yehuda Katz (Ember, Glimmer)
- Sarah Allen (Mozilla)
- Una Kravets (Google, CSS team)
**Tracks:** Compilers · Distributed Systems · Web Platform · Maintainer Wellbeing · Funding OSS · Security
**Schedule:** "2 days · 4 parallel tracks · 48 talks · 12 workshops · maintainer dinner Day 1"
**Tickets:**
- Maintainer / contributor (verified GitHub): €240
- Regular: €590
- Corporate: €1,290 (incl. recruiter access)
- Free travel grant: 40 spots for underrepresented contributors
**Venue:** Beurs van Berlage · 5 min from Amsterdam Centraal · all-vegetarian catering
**Trust strip:** "Code of Conduct enforced · childcare on-site · livestream + recordings free for ticket holders"
## 9. Media & assets
Every ``, `background-image`, gallery tile, thumbnail, and decorative figure on the page must come from ONE of the three buckets below. Do NOT reference any image path that is not specified here. Do NOT ship stock-photo placeholders.
### Bucket 1 — Runtime-generated via Nano Banana Pro (`gemini-3-pro-image`)
Generate at build time, cache to Firebase Storage at the path listed, serve via signed URL. Each call uses model `gemini-3-pro-image`, output format `image/webp`, dimensions as listed. The visual register matches section 7 (Design language) and the specific seed content in section 8a.
- **Hero image** → `/public/generated/hero.webp` · 2400×1500 · prompt: "Editorial hero photograph of the event named in section 8a at the venue described in section 8a, palette and tone consistent with section 7. For a conference: keynote-room atmosphere with lighting rig and front-row audience silhouettes; for a charity auction: gala-room atmosphere with table service and chandelier light. No on-image text, no readable signage rendered as letters. Real-photo aesthetic, 35mm look."
- **Schedule moment images (one per row in section 8a's agenda)** → `/public/generated/schedule/{slug}.webp` · 1200×1200 · prompt: "per-row prompt built from each agenda row literal text (e.g. "keynote: AI safety" → "speaker on stage in dimmed auditorium, single key light, audience silhouetted, 35mm look, no readable signage")."
- **Speaker / guest headshots (one per name in section 8a's speaker list)** → `/public/generated/speakers/{speaker-slug}.webp` · 800×800 · prompt: "Per-speaker prompt: editorial head-and-shoulders portrait of the named speaker, neutral background consistent with section 7's palette, natural light, slight smile or neutral expression, no on-image text."
- **Venue photograph** → `/public/generated/venue.webp` · 1800×1200 · prompt: "Wide editorial photograph of the venue described in section 8a, no readable signage, no on-image text."
- **Past-event gallery tiles (8 images, if section 6 includes a gallery)** → `/public/generated/gallery/g-01.webp … g-08.webp` · 1600×1200 · prompt: "Per-tile prompt template: editorial documentary photograph at a past edition of the event. Subject: [stage close-up · audience laughter · networking-break candid · keynote applause · sponsor booth detail in soft focus · panel discussion · empty auditorium at dawn · closing-night drink]. No on-image text."
- **Wordmark / monogram** → `/public/generated/wordmark.svg` · prompt: "A simple event wordmark for the event named in section 8a, set in the display font of section 7, suitable for badge headers and email subjects." Favicon export to `/public/generated/favicon-256.webp` (256×256).
### Bucket 2 — Seed assets shipped with the deliverable
Static files committed to `/public/samples/` as fallbacks when generation fails. Generated once via Nano Banana 2 (`gemini-3.1-flash-image`), 1024×1024 WebP unless noted.
- `/public/samples/empty-state-tickets.webp` — 1024×1024 — prompt: "Minimal hand-drawn line illustration of a single perforated ticket stub, single-stroke outline, no colour fill."
- `/public/samples/empty-state-schedule.webp` — 1024×1024 — prompt: "Minimal hand-drawn line illustration of an empty schedule grid with one row dashed, single-stroke outline, no colour fill."
- `/public/samples/hero-fallback.webp` — 1600×1000 — same prompt as the Bucket-1 hero, encoded once at build and committed so the page renders identically if Gemini quota is exhausted.
### Bucket 3 — User-supplied (when the template is remixed)
Onboarding modal surfaces a "Replace with your photos" hint. Uploads land via the file input → Firebase Storage path `events/{eventSlug}/uploads/`. The build ships with Bucket-1 + Bucket-2 only; no user-supplied images at first paint.
### Hard rules
- Every `` tag MUST have a `src` that resolves to a path listed above. Any `` referencing a path not in this section is a build error.
- No bare `image.jpg` / `hero.jpg` / `placeholder.png` references anywhere in the code.
- Icons: `lucide-react` only; use sparingly and consistently — never decorative-only.
- Optimisation: WebP or AVIF, `loading="lazy"` on everything below the fold, explicit `width`/`height` to prevent layout shift.
## 10. Interactivity & states
- Every interactive element has a hover, focus, active, and disabled state.
- Forms validate inline and show specific error messages.
- Loading states (skeletons, not spinners where possible).
- Empty states with helpful next-action guidance.
- Smooth scroll for in-page anchors.
## 11. Tech & responsive requirements
- **File downloads on Safari / Firefox:** when offering local-disk save of any export (PDF, CSV, MP3, ZIP, JSON, image, `.ics` calendar invite), fall back to `` with a blob URL — the File System Access API (`showSaveFilePicker()`) is Chromium-only. Detect with `'showSaveFilePicker' in window`; otherwise use the anchor-download path.
- **Stack:** React + TypeScript + Tailwind CSS. Use functional components and hooks.
- **Mobile-first.** Verify layouts at 375 px (iPhone SE), 768 px (iPad), 1024 px, 1440 px+.
- Use `clamp()` for fluid typography where appropriate.
- Prefer container queries over media queries for component-level responsiveness.
- Use `dvh` / `svh` units instead of `vh` to handle mobile viewport chrome.
- Zero horizontal overflow at any width. Zero layout shift on load.
- Respect safe-area insets on iOS.
## 12. Accessibility (WCAG 2.2 AA)
- Semantic HTML — `header`, `nav`, `main`, `section`, `article`, `footer`.
- All interactive controls reachable by keyboard with a visible focus ring.
- Color contrast ≥ 4.5:1 for body, 3:1 for large text and UI components.
- All images have meaningful `alt` text. Decorative images use `alt=""`.
- Form fields have associated `