System Requirements Document for travel-discovery-trailnest

1. Introduction

TrailNest is a responsive travel discovery website for everyday explorers — people who plan weekend getaways and dream about longer trips. The product lets a visitor browse curated destinations, search and filter them by region, budget, and trip type, and save the ones they like so they can return to them later.

The intent is warm, human discovery rather than a transactional booking engine. TrailNest is a browsing and saving surface: it presents sample destination content, makes navigation, filtering, and save/unsave interactions work, and persists saved trips locally on the device. It does not book travel, process payments, or call external APIs.

The audience is the Traveler — a visitor who arrives to explore destinations, narrows them down with filters, and keeps a personal shortlist of saved trips.

2. System Overview

TrailNest is a five-page responsive website delivered as a custom first-party front end:

1. Home — the public entry surface with the original navigation header, a hero, featured destinations, and a footer with newsletter signup and useful links.
2. Explore — the full destination catalog with a distinct compact header variant carrying a destination search field, a filter bar (region, budget, trip type), and eight destinations.
3. About — brand story, team, and travel values, reusing the original Home header and the same footer.
4. Weekend Trips — short trips with different destination data, reusing the original Home header, footer, destination cards, and filter bar.
5. Saved Trips — the visitor's saved destinations, reusing the original Home header, footer, destination cards, and filter bar, with an empty state when nothing is saved.

Shared components — the original header, the footer, the destination card, and the filter bar — are implemented once and reused across pages. The Explore compact header is a separate component so it does not change the other pages. Cards and filters accept page-specific data while keeping their shared appearance and behavior.

All content is sample data held in the application; no external APIs are used. Saved trips are persisted locally on the device so they survive across visits.

2a. Product Interpretation and Delivery Boundary

Delivery ownership. TrailNest is a first-party, browser-delivered website. Every page, the navigation, the filters, the save/unsave interaction, and the local persistence of saved trips are owned and rendered by the application itself. There is no provider-owned or external-destination surface in the current product.

Access ownership. All five pages are openly reachable; the source specifies no sign-in, account, or gated area. Saved trips are device-local rather than account-bound, so no identity establishment or verification step is required to use any accepted capability. No account-management capability is in scope.

Current vs. future. Everything described in this document is current. There is no accepted future horizon. Booking, payments, real destination inventory, and any external data integration are explicitly out of scope and are not planned here.

Data boundary. Destination content is sample data bundled with the application. The newsletter signup is a presentational footer element; no external mailing service is integrated.

2b. Source Content Inventory

Not applicable — no reference directive with content_source authority was supplied. Destination content is sample data authored for the product.

2c. Page Content and Component Coverage

Home

• Information / state: TrailNest wordmark and logo; navigation links to all five pages (Home, Explore, About, Weekend Trips, Saved Trips); a "Plan a Trip" button; hero headline and supporting subline; a set of featured destinations; footer with newsletter signup and useful links.
• Primary actions: Navigate to any of the five pages via the header; activate "Plan a Trip"; browse featured destination cards; save/unsave a featured destination; submit the newsletter signup.
• Supporting actions: Follow useful footer links; open a destination card's detail affordance.
• Domain entities: Destination (name, region, budget tier, trip type, illustrated thumbnail, saved flag), Featured selection, Newsletter signup entry.
• Component responsibilities:
  • Original Header — logo, five page links, "Plan a Trip" button; shared across Home, About, Weekend Trips, Saved Trips.
  • Hero — two-column split: headline and CTA on the left, layered modular illustration on the right.
  • Destination Card — shared component rendering an illustrated thumbnail, destination name, region, budget, trip type, and a heart save toggle.
  • Footer — newsletter signup (rounded input + amber pill button) and useful links; shared across Home, About, Weekend Trips, Saved Trips.
• States:
  • Loading: featured grid shows card placeholders while sample data resolves.
  • Empty: if no featured destinations are available, a friendly message replaces the grid.
  • Success: featured cards render; a save toggles the heart and persists locally; newsletter submission shows a confirmation.

• Error: newsletter submission with an invalid or empty address shows an inline message and keeps the entered text.
• Recovery: the visitor can correct the address and resubmit, or dismiss the message and continue browsing.

Explore

• Information / state: compact header variant with the TrailNest logo, page links, and a destination search field; filter bar with region, budget, and trip-type filters; a grid of eight destinations; footer.
• Primary actions: Type a destination query into the search field; select region, budget, and trip-type filters; clear filters; save/unsave a destination; navigate via the compact header.
• Supporting actions: Reset the search field; combine search with filters.
• Domain entities: Destination, Search query, Region filter, Budget filter, Trip-type filter, Saved flag.
• Component responsibilities:
  • Compact Header (Explore only) — a distinct variant with the logo, page links, and a destination search field. Kept separate from the original header so it does not change other pages.
  • Filter Bar — shared component with region, budget, and trip-type pill chips; accepts page-specific option data.
  • Destination Card — shared component, same appearance and behavior as elsewhere.
  • Footer — shared component.
• States:
  • Loading: eight card placeholders while sample data resolves.
  • Empty: when search and filters match nothing, an empty message with a "clear filters" affordance replaces the grid.
  • Success: eight destinations render by default; the grid narrows as search and filters are applied.
  • Error: if sample data fails to load, an error message with a retry affordance replaces the grid.
  • Recovery: retry reloads the sample data; clearing filters restores the full eight-destination grid.

About

• Information / state: original Home header; "our story" narrative; team section; travel values section; the same footer as Home.
• Primary actions: Navigate via the header; read the story, team, and values; submit the newsletter signup in the footer.
• Supporting actions: Follow useful footer links.
• Domain entities: Story content, Team member (name, role, illustrated portrait), Travel value (title, description).
• Component responsibilities:
  • Original Header — shared component, unchanged from Home.
  • Story Section — single-column narrative block.
  • Team Grid — three-up grid of team cards, stacking on mobile.
  • Values Section — list or grid of travel values.
  • Footer — shared component, identical to Home.
• States:
  • Loading: static content renders immediately; team portraits fade in as assets resolve.
  • Empty: not applicable — story, team, and values are authored content.
  • Success: all three sections render fully.
  • Error: if a team portrait fails to load, a placeholder illustration holds the card's layout.
  • Recovery: the placeholder remains until the asset resolves on a later visit.

Weekend Trips

• Information / state: original Home header; filter bar reused from Explore; destination cards showing short-trip data; footer.
• Primary actions: Filter short trips by region, budget, and trip type; save/unsave a weekend trip; navigate via the header.
• Supporting actions: Clear filters to restore the full short-trip set.
• Domain entities: Weekend Destination (name, region, budget tier, trip type, duration, illustrated thumbnail, saved flag), Region filter, Budget filter, Trip-type filter.
• Component responsibilities:
  • Original Header — shared component.
  • Filter Bar — the same shared component as Explore, supplied with weekend-trip option data.
  • Destination Card — the same shared component, supplied with weekend-trip destination data.
  • Footer — shared component.
• States:
  • Loading: card placeholders while weekend sample data resolves.
  • Empty: when filters match no weekend trips, an empty message with a clear-filters affordance.
  • Success: short trips render with their own destination data, distinct from Explore.
  • Error: sample-data load failure shows an error message with retry.
  • Recovery: retry reloads; clearing filters restores the full set.

Saved Trips

• Information / state: original Home header; filter bar reused from Explore; destination cards for saved destinations; an empty state when nothing is saved; footer.
• Primary actions: View saved destinations; unsave a destination (removing it from the list); filter the saved set by region, budget, and trip type; navigate via the header.
• Supporting actions: Clear filters; return to Explore or Weekend Trips to save more.
• Domain entities: Saved Destination (the destination record plus its saved flag), Region filter, Budget filter, Trip-type filter.
• Component responsibilities:
  • Original Header — shared component.
  • Filter Bar — the same shared component, applied to the saved set.
  • Destination Card — the same shared component, with the heart in its saved state.
  • Empty State — a friendly illustrated message shown when no destinations are saved.
  • Footer — shared component.
• States:
  • Loading: card placeholders while locally persisted saved trips are read.
  • Empty: when no destinations are saved, the empty state replaces the grid and explains how to save a trip.
  • Success: saved destinations render; unsaving removes the card immediately and updates local persistence.
  • Error: if local storage is unavailable, the page shows the empty state with a note that saving is unavailable in this browser.
  • Recovery: the visitor can continue browsing; saving resumes if local storage becomes available.

3. Functional Requirements

FR-1 — Five-page responsive site (explicit) As a Traveler, I should be able to reach five pages — Home, Explore, About, Weekend Trips, and Saved Trips — so that I can discover and keep track of trips.

• Trigger: the visitor loads the site.
• Observable result: all five pages exist and are reachable through navigation.
• Access: all five pages are openly reachable; no sign-in is required.
• Failure/recovery: if a page fails to load, the visitor can retry from the header navigation.
• Continuation: the visitor moves between pages using the header links.

FR-2 — Home navigation header (explicit) As a Traveler, I should see a navigation header on Home with the TrailNest logo, links to all five pages, and a "Plan a Trip" button, so that I can orient myself and move around the site.

• Trigger: Home loads.
• Observable result: the logo, five page links, and the "Plan a Trip" button are visible and operable.
• Access: public.
• Failure/recovery: if a link target fails, the visitor can return to Home via the logo.
• Continuation: selecting a link navigates to that page.

FR-3 — Home hero (explicit) As a Traveler, I should see a hero on Home, so that I immediately understand what TrailNest is for.

• Trigger: Home loads.
• Observable result: the hero renders with its headline, supporting subline, and call to action.
• Access: public.
• Failure/recovery: if hero imagery fails to load, the headline and CTA remain readable.
• Continuation: the visitor proceeds to featured destinations or activates "Plan a Trip".

FR-4 — Home featured destinations (explicit) As a Traveler, I should see featured destinations on Home, so that I can start browsing without searching.

• Trigger: Home loads.
• Observable result: a set of featured destination cards renders.
• Access: public.
• Failure/recovery: if no featured destinations are available, a friendly message replaces the grid.
• Continuation: the visitor can save a featured destination or navigate to Explore for the full catalog.

FR-5 — Home footer with newsletter signup and useful links (explicit) As a Traveler, I should see a footer on Home with a newsletter signup and useful links, so that I can subscribe and find secondary information.

• Trigger: the visitor scrolls to the footer.
• Observable result: a newsletter input with a submit button and a set of useful links render.
• Access: public.
• Failure/recovery: an invalid or empty address shows an inline message and preserves the entered text so the visitor can correct it.
• Continuation: a valid submission shows a confirmation; useful links navigate onward.

FR-6 — Explore compact header with destination search (explicit) As a Traveler, I should see a distinct compact header on Explore with a destination search field, so that I can search destinations from a tighter header.

• Trigger: Explore loads.
• Observable result: the compact header renders with the logo, page links, and a destination search field.
• Access: public.
• Constraint: this compact header is a separate component from the original header and must not change the other pages.
• Failure/recovery: if the search field receives no matches, the grid shows the empty state rather than an error.
• Continuation: typing a query narrows the destination grid.

FR-7 — Reusable destination cards (explicit) As a Traveler, I should see destination cards that look and behave the same wherever they appear, so that browsing feels consistent.

• Trigger: any page that shows destinations renders.
• Observable result: cards render with a consistent appearance and behavior across Home, Explore, Weekend Trips, and Saved Trips.
• Access: public.
• Constraint: the card is implemented once and reused; it accepts page-specific destination data while keeping its shared appearance and behavior.
• Failure/recovery: if a card's thumbnail fails to load, the card's text and controls remain intact.
• Continuation: the visitor can save/unsave from any card.

FR-8 — Filter bar with region, budget, and trip-type filters (explicit) As a Traveler, I should be able to filter destinations by region, budget, and trip type, so that I can narrow the catalog to what suits me.

• Trigger: the visitor selects one or more filter chips.
• Observable result: the destination grid updates to match the active filters.
• Access: public.
• Constraint: the filter bar is implemented once and reused; it accepts page-specific option data while keeping its shared appearance and behavior.
• Failure/recovery: when filters match nothing, an empty message with a clear-filters affordance appears.
• Continuation: clearing filters restores the full set for that page.

FR-9 — Explore shows eight destinations (explicit) As a Traveler, I should see eight destinations on Explore, so that I have a substantial catalog to browse.

• Trigger: Explore loads with no search or filters applied.
• Observable result: exactly eight destination cards render.
• Access: public.
• Failure/recovery: if sample data fails to load, an error message with a retry affordance replaces the grid.
• Continuation: the visitor searches, filters, or saves from the grid.

FR-10 — About page content (explicit) As a Traveler, I should see our story, team, and travel values on About, so that I can understand who TrailNest is.

• Trigger: About loads.
• Observable result: the story section, team section, and travel values section render.
• Access: public.
• Failure/recovery: if a team portrait fails to load, a placeholder illustration holds the layout.
• Continuation: the visitor navigates onward via the header or footer.

FR-11 — About reuses the original header and the same footer (explicit) As a Traveler, I should see the same header and footer on About as on Home, so that the site feels consistent.

• Trigger: About loads.
• Observable result: the original Home header and the same footer render unchanged.
• Access: public.
• Failure/recovery: if a shared component fails, the page content remains readable.
• Continuation: navigation and newsletter signup behave exactly as on Home.

FR-12 — Weekend Trips shows short trips with different destination data (explicit) As a Traveler, I should see short trips on Weekend Trips with destination data different from Explore, so that I can find quick getaways.

• Trigger: Weekend Trips loads.
• Observable result: destination cards render with weekend-trip data distinct from the Explore set.
• Access: public.
• Failure/recovery: if sample data fails to load, an error message with retry replaces the grid.
• Continuation: the visitor filters, saves, or navigates onward.

FR-13 — Weekend Trips reuses the original header, footer, cards, and filter bar (explicit) As a Traveler, I should see the original header, footer, destination cards, and filter bar on Weekend Trips, so that the page matches the rest of the site.

• Trigger: Weekend Trips loads.
• Observable result: the original header, the shared footer, the shared destination cards, and the shared filter bar render.
• Access: public.
• Constraint: the filter bar and cards are supplied with weekend-trip data while keeping their shared appearance and behavior.
• Failure/recovery: if a shared component fails, the page content remains readable.
• Continuation: filtering and saving behave as on Explore.

FR-14 — Saved Trips displays saved destinations (explicit) As a Traveler, I should see my saved destinations on Saved Trips, so that I can return to the trips I liked.

• Trigger: Saved Trips loads and at least one destination is saved.
• Observable result: the saved destinations render as cards with their hearts in the saved state.
• Access: public; saved trips are device-local.
• Failure/recovery: if local storage is unavailable, the page shows the empty state with a note that saving is unavailable in this browser.
• Continuation: the visitor can unsave, filter, or navigate onward.

FR-15 — Saved Trips empty state (explicit) As a Traveler, I should see an empty state on Saved Trips when nothing is saved, so that I understand the page and know how to save a trip.

• Trigger: Saved Trips loads and no destinations are saved.
• Observable result: a friendly empty state replaces the grid and explains how to save a trip.
• Access: public.
• Failure/recovery: the empty state is itself the recovery path; it offers a route to Explore or Weekend Trips.
• Continuation: the visitor navigates to a catalog page and saves a destination.

FR-16 — Saved Trips reuses the original header, footer, cards, and filter bar (explicit) As a Traveler, I should see the original header, footer, destination cards, and filter bar on Saved Trips, so that the page matches the rest of the site.

• Trigger: Saved Trips loads.
• Observable result: the original header, the shared footer, the shared destination cards, and the shared filter bar render.
• Access: public.
• Constraint: the filter bar applies to the saved set while keeping its shared appearance and behavior.
• Failure/recovery: if a shared component fails, the page content remains readable.
• Continuation: filtering and unsaving behave consistently with the other pages.

FR-17 — Save and unsave interactions (explicit) As a Traveler, I should be able to save and unsave a destination, so that I can build and adjust my shortlist.

• Trigger: the visitor activates the heart control on a destination card.
• Observable result: the heart toggles state immediately, and the destination is added to or removed from Saved Trips.
• Access: public; no sign-in required.
• Failure/recovery: if local persistence fails, the toggle reverts and the visitor is informed that saving is unavailable.
• Continuation: the visitor continues browsing; the change is reflected on Saved Trips.

FR-18 — Saved trips persisted locally (explicit; persistence mechanics required_inference) As a Traveler, I should have my saved trips persisted locally on my device, so that they remain available across visits.

• Trigger: the visitor saves or unsaves a destination.
• Observable result: the saved set is written to local device storage and restored on the next visit.
• Access: public; storage is device-local, not account-bound.
• Failure/recovery: if local storage is unavailable or full, the write fails gracefully and the visitor is informed.
• Continuation: previously saved trips reappear when the visitor returns on the same device.

FR-19 — Working navigation (explicit) As a Traveler, I should be able to navigate between all five pages, so that I can move through the site.

• Trigger: the visitor selects a header link, footer link, or the "Plan a Trip" button.
• Observable result: the target page loads.
• Access: public.
• Failure/recovery: if a target fails to load, the visitor can retry or return to Home via the logo.
• Continuation: the visitor continues from the destination page.

FR-20 — Sample data without external APIs (explicit) As a Traveler, I should see destination content that loads without external services, so that browsing is immediate and reliable.

• Trigger: any page that shows destinations loads.
• Observable result: destination content comes from bundled sample data; no external API call is made.
• Access: public.
• Failure/recovery: if sample data fails to load, an error message with retry appears.
• Continuation: the visitor browses normally once data is available.

FR-21 — Warm cream background, forest-green accents, rounded cards, consistent typography (explicit) As a Traveler, I should experience a warm cream background, forest-green accents, rounded cards, and consistent typography, so that the site feels warm and cohesive.

• Trigger: any page renders.
• Observable result: the palette, card radii, and typography are applied consistently across all five pages.
• Access: public.
• Failure/recovery: if a font fails to load, a readable fallback preserves layout and legibility.
• Continuation: the visual system holds across navigation.

FR-22 — Desktop, tablet, and mobile layouts (explicit) As a Traveler, I should be able to use TrailNest on desktop, tablet, and mobile, so that the site works on whatever device I have.

• Trigger: the viewport changes across desktop, tablet, and mobile widths.
• Observable result: layouts reflow appropriately — card grids step down from three columns to two to one, the filter bar wraps to stacked rows, and the footer stacks.
• Access: public.
• Failure/recovery: at narrow widths, content wraps or scales rather than overflowing.
• Continuation: all interactions remain available at every breakpoint.

FR-23 — Shared components implemented once (explicit) As a Traveler, I should see consistent shared components across pages, so that the site behaves predictably.

• Trigger: any page using a shared component renders.
• Observable result: the original header, footer, destination card, and filter bar are each implemented once and reused.
• Access: public.
• Constraint: the Explore compact header is deliberately separate from the original header.
• Failure/recovery: a change to a shared component propagates consistently rather than diverging per page.
• Continuation: consistency is maintained as the visitor moves between pages.

4. User Personas

Traveler

Product context. The Traveler is a visitor who arrives at TrailNest to browse travel destinations — most often thinking about a weekend away, sometimes dreaming about a longer trip. They are not booking anything; they are exploring, comparing, and collecting ideas. They may arrive on Home, jump straight into Explore, or land on Weekend Trips when they already know they want something short.

Primary goal. Find destinations that suit their interests and constraints, and keep a personal shortlist of the ones worth returning to.

Distinct accepted responsibilities.

• Browsing featured destinations on Home and the full catalog on Explore.
• Searching destinations by name from Explore's compact header search field.
• Narrowing destinations by region, budget, and trip type using the shared filter bar.
• Browsing short trips with their own destination data on Weekend Trips.
• Saving and unsaving destinations from any card, on any page.
• Reviewing and pruning the saved shortlist on Saved Trips, including encountering the empty state when nothing is saved.
• Reading the About page to understand who TrailNest is.
• Submitting the newsletter signup in the footer.

Relevant inputs and decisions. The Traveler supplies a search query, selects region, budget, and trip-type filters, and decides which destinations to save. They decide when to clear filters and when to remove a saved trip.

Interactions with other accepted participants. None. The Traveler is the only accepted active human persona; there is no counterparty, recipient, or approver in the current product. Saved trips are device-local and not shared with anyone.

Observable success. The Traveler finds destinations matching their filters, sees their saved trips persist across visits on the same device, and can return to Saved Trips to review them. Their shortlist survives a page reload and a return visit.

What makes this role distinct. The Traveler's work is entirely exploratory and self-directed: there is no submission, approval, or handoff to another person. The only durable state they create is their own local shortlist, which they alone own and revisit.

5. Core User Flows

Flow 1 — Discover destinations from Home

1. The Traveler loads TrailNest and lands on Home.
2. The original header renders with the TrailNest logo, links to all five pages, and the "Plan a Trip" button.
3. The Traveler reads the hero headline and subline, and sees the layered illustration composition.
4. The Traveler scrolls to the featured destinations and browses the featured cards.
5. The Traveler activates the heart on a featured destination. The heart pops and the destination is saved locally.
6. Result: the destination is added to the Traveler's shortlist and persists on the device.
7. Continuation: the Traveler either activates "Plan a Trip" or selects Explore from the header to see the full catalog.

Flow 2 — Search and filter the Explore catalog

1. The Traveler selects Explore from the header.
2. Explore loads with its distinct compact header, showing the logo, page links, and a destination search field.
3. Eight destination cards render in the grid.
4. The Traveler types a destination name into the search field. The grid narrows to matching destinations.
5. The Traveler selects a region chip, a budget chip, and a trip-type chip in the filter bar. Each chip fills with forest green on selection and the grid updates.
6. Result: the grid shows only destinations matching the search and all active filters.
7. Failure/recovery: if the combination matches nothing, an empty message with a clear-filters affordance appears. The Traveler clears the filters and the full eight-destination grid returns.
8. Continuation: the Traveler saves a destination from the filtered grid, or navigates to Weekend Trips.

Flow 3 — Browse weekend trips

1. The Traveler selects Weekend Trips from the header.
2. Weekend Trips loads with the original header, the shared filter bar, and destination cards showing short-trip data distinct from Explore.
3. The Traveler applies region, budget, and trip-type filters to narrow the short trips.
4. Result: the grid shows only weekend trips matching the active filters.
5. Failure/recovery: if the filters match no weekend trips, an empty message with a clear-filters affordance appears; clearing restores the full set.
6. Continuation: the Traveler saves a weekend trip, which is added to their shortlist.

Flow 4 — Review and prune saved trips

1. The Traveler selects Saved Trips from the header.
2. Saved Trips loads with the original header, the shared filter bar, and cards for each saved destination, each heart in its saved state.
3. The Traveler optionally filters the saved set by region, budget, and trip type.
4. The Traveler activates the heart on a destination they no longer want. The card is removed from the list immediately and local persistence is updated.
5. Result: the shortlist reflects only the destinations the Traveler still wants.
6. Continuation: the Traveler returns to Explore or Weekend Trips to save more.

Flow 5 — Encounter the Saved Trips empty state

1. The Traveler selects Saved Trips from the header with nothing saved.
2. Saved Trips loads and, finding no saved destinations, renders the empty state in place of the grid.
3. The empty state explains how to save a trip and offers a route to a catalog page.
4. Result: the Traveler understands the page and knows the next step.
5. Continuation: the Traveler navigates to Explore or Weekend Trips, saves a destination, and returns to Saved Trips to see it listed.

Flow 6 — Learn about TrailNest

1. The Traveler selects About from the header.
2. About loads with the original Home header and the same footer.
3. The Traveler reads the story section, the team section, and the travel values section.
4. Result: the Traveler understands who TrailNest is and what it values.
5. Continuation: the Traveler navigates onward via the header, or submits the newsletter signup in the footer.

Flow 7 — Subscribe to the newsletter

1. From the footer on Home, About, Weekend Trips, or Saved Trips, the Traveler enters an email address into the rounded newsletter input.
2. The Traveler activates the amber pill submit button.
3. Result: a confirmation appears.
4. Failure/recovery: if the address is empty or invalid, an inline message appears and the entered text is preserved so the Traveler can correct it and resubmit.
5. Continuation: the Traveler continues browsing.

Flow 8 — Return visit with saved trips intact

1. The Traveler returns to TrailNest on the same device on a later day.
2. The Traveler selects Saved Trips from the header.
3. The application reads the locally persisted saved set.
4. Result: the previously saved destinations render as cards with their hearts in the saved state.
5. Failure/recovery: if local storage is unavailable, the page shows the empty state with a note that saving is unavailable in this browser.
6. Continuation: the Traveler continues browsing or prunes the list.

6. Visuals, Colors, and Theme

Muse and headline. Pablo Stanley — Warm, human discovery: rounded shapes and sunny colour.

The direction translates into a warm, optimistic, approachable travel-discovery register: cream ground, forest-green anchor, amber energy, and modular illustration instead of photography.

Colour tokens (light mode)

Proportion target: 60% cream field, 25% white surfaces, 10% green, 5% amber. No dark mode; no high-contrast black backgrounds.

Typography

• Headings: Fraunces, weights 600–700, soft optical size, sentence case, leading 1.1–1.2, tracking near zero.
• Body: Nunito.
• Scale (1.25 modular): 64 / 48 / 32 / 24 / 18 / 16 / 14.
• Mobile scale: 40 / 32 / 24 / 18 / 16 / 14 / 13.
• Hero clamp: clamp(40px, 6vw, 64px).
• Section titles clamp: clamp(28px, 4vw, 48px).

Shape language

• Cards: 20–24px radii.
• Buttons: full pills (999px).
• Filter chips: pills with 2px borders.
• Input fields: 14px rounded.
• Shadows: soft offset 0 4px 16px rgba(47,107,79,0.08).
• Decorative blob and sticker shapes appear as section accents, never behind readable text.
• Illustrated map pins and compass marks are hand-drawn in feel.

Layout

• Consistent 24px gutter; max-width 1200px container.
• Home hero: two-column split — headline and CTA left, layered illustration right.
• Featured destinations: 3-column grid desktop, 2 tablet, 1 mobile.
• Explore: compact header with search field, then a horizontal filter bar that wraps to stacked rows on mobile, then an 8-card grid.
• About: single-column story; team cards in a 3-up grid.
• Footer: four-column layout that stacks on mobile.

Imagery

Modular vector illustration in Pablo Stanley's style — rounded characters in travel scenes (hiker, photographer, couple with map), travel objects (compass, camera, backpack, tent), and landscape elements (mountains, trees, waves) built from simple geometric shapes. Destination cards use illustrated scene thumbnails rather than photography. Hand-drawn accent marks (squiggles, dots, arrows) appear as decorative elements. No stock photography.

7. Signature Design Concept

The TrailNest Welcome Scene — the Home hero as a layered modular illustration.

On a cream (#FBF6EC) field, the hero splits into two columns. The left column carries a Fraunces headline at clamp(40px, 6vw, 64px) reading "Find your next great escape" in forest green (#2F6B4F), stacked over two lines, with a short Nunito subline beneath it and a pill "Plan a Trip" button in amber (#F2A93B) with forest-green text.

The right column holds the signature composition: a rounded character with a backpack standing on a stylized hill, with floating travel objects — a compass, a camera, and a map pin — layered at different depths in forest green, amber, and cream tones. A soft blob shape in muted sand (#E8DFD0) sits behind the illustration, anchoring it without ever sitting behind readable text.

The composition is asymmetric, warm, and immediately reads as friendly travel discovery rather than a generic SaaS hero. It recomposes only accepted content — the hero headline, subline, and "Plan a Trip" CTA — and introduces no new behavior.

8. Interaction Model & Motion Direction

Interaction Model: Animated Motion Tempo: expressive Hero Dimensionality: layered_2d

Landing Hero Motion Brief

• Focal subject: the layered modular illustration of the rounded backpacker character on a stylized hill, with floating travel objects (compass, camera, map pin) at different depths, over a soft muted-sand blob.
• Input → transformation → outcome thesis: as the visitor arrives on Home, the hero illustration elements gently float on a 6s loop at 2–3px amplitude, and the headline, subline, and "Plan a Trip" button fade up into place. The outcome is a warm, alive first frame that reads as friendly travel discovery without any interaction being required.
• Motion vocabulary: springy but purposeful — soft float loops on illustration elements, staggered fade-up entrance, and a 200ms ease-out lift on interactive elements.
• Composed first frame: cream field; left column headline in forest green over two lines with subline and amber pill CTA; right column the layered illustration with the sand blob behind it; all elements fully within the viewport at 375px, 768px, and 1280px.
• Reduced-motion state: all transforms become instant opacity fades and the float loops stop, leaving a fully composed static hero with every readable element and control whole and in place.

Motion system

• Cards lift 4px with a soft shadow on hover (200ms ease-out).
• Save hearts pop with a 1.2 scale bounce (300ms spring).
• Filter chips animate their background fill on selection.
• Hero illustration elements gently float with a 6s loop at 2–3px amplitude.
• Staggered fade-up entrance for card grids (60ms delay per card).
• Reduced-motion mode: all transforms become instant opacity fades; floats stop.

9. Non-Functional Requirements

NFR-1 — Responsive across desktop, tablet, and mobile (explicit) TrailNest must support desktop, tablet, and mobile layouts. Card grids step down from three columns to two to one; the filter bar wraps to stacked rows on mobile; the footer stacks. Rationale: the source explicitly requires all three layout classes.

NFR-2 — Readable text and controls stay whole at every viewport (explicit, from the creative direction) Headlines, wordmarks, labels, numbers, and card text and controls must stay entirely inside the viewport and their container at 375px, 768px, and 1280px, wrapping or scaling (for example font-size: clamp(...) with its mobile size) to fit. No other element may cover any part of them. Imagery, decoration, and motion may be cropped, bled, rotated, or overlapped as the direction asks, as long as they cover no readable text or control. Rationale: legibility and operability at every breakpoint.

NFR-3 — No external APIs (explicit) All destination content must come from bundled sample data. No external API call may be made. Rationale: explicit hard constraint in the source.

NFR-4 — Local persistence of saved trips (explicit) Saved trips must be persisted locally on the device so they remain available across visits. Rationale: explicit hard constraint in the source.

NFR-5 — Shared components implemented once (explicit) The original header, footer, destination card, and filter bar must each be implemented once and reused across pages. The Explore compact header must remain a separate component so it does not change other pages. Rationale: explicit hard constraint in the source.

NFR-6 — Page-specific data with shared appearance and behavior (explicit) Cards and filters must accept page-specific data while keeping their shared appearance and behavior. Rationale: explicit hard constraint in the source.

NFR-7 — Consistent visual system (explicit) A warm cream background, forest-green accents, rounded cards, and consistent typography must be applied across all five pages. Rationale: explicit hard constraint in the source.

NFR-8 — Accessible reduced-motion support (explicit, from the creative direction) With prefers-reduced-motion, all transforms must become instant opacity fades and float loops must stop, leaving a usable static arrangement. Rationale: the direction specifies a reduced-motion mode.

NFR-9 — Graceful degradation of local storage (required_inference) If local storage is unavailable or full, the application must fail gracefully: the save toggle reverts, and Saved Trips shows the empty state with a note that saving is unavailable in this browser. Rationale: required to make the accepted save/unsave and persistence journeys usable when storage is unavailable.

10. Tech Stack

• Frontend: React — a responsive single-page application with client-side routing across the five pages.
• Styling: CSS with the token system defined in Section 6 (cream field, forest-green primary, amber accent, muted sand; Fraunces headings, Nunito body; rounded card and pill shape language).
• Data: Bundled sample data modules for destinations, weekend trips, team members, and travel values. No external API calls.
• Persistence: Browser local storage for the saved-trips set.
• Build and delivery: Static front-end build served as a single application. No backend service, database, or container orchestration is required for the current product, since all content is sample data and all state is device-local.

11. Assumptions and Constraints

Assumptions

• A1 (narrow): Destination content — names, regions, budget tiers, trip types, and illustrated thumbnails — is authored as sample data for the product, since the source specifies sample data without external APIs and supplies no destination records.
• A2 (narrow): The newsletter signup is presentational; no external mailing service is integrated, consistent with the no-external-APIs constraint.
• A3 (narrow): Saved trips are device-local and not account-bound, so no sign-in, account creation, or identity verification is required for any accepted capability.
• A4 (narrow): The "Plan a Trip" button navigates to a catalog page (Explore or Weekend Trips), since the source specifies the button but no separate planning flow.

Constraints

• C1: Exactly five pages: Home, Explore, About, Weekend Trips, Saved Trips. No additional pages may be added.
• C2: Explore's compact header is separate from the original header and must not change the other pages.
• C3: Shared components — original header, footer, destination card, filter bar — are implemented once and reused.
• C4: Cards and filters accept page-specific data while keeping their shared appearance and behavior.
• C5: Sample data only; no external APIs.
• C6: Saved trips are persisted locally.
• C7: Explore shows eight destinations by default.
• C8: Weekend Trips shows short trips with destination data different from Explore.
• C9: Saved Trips shows an empty state when nothing is saved.
• C10: No booking, payment, or external inventory integration is in scope.

12. Glossary

• TrailNest — The travel discovery website described in this document.
• Traveler — The single accepted active human persona: a visitor who browses, searches, filters, and saves destinations.
• Original Header — The shared navigation header used on Home, About, Weekend Trips, and Saved Trips, containing the TrailNest logo, links to all five pages, and the "Plan a Trip" button.
• Compact Header — The distinct header variant used only on Explore, containing the logo, page links, and a destination search field. Kept separate from the original header.
• Destination Card — The shared card component rendering an illustrated thumbnail, destination name, region, budget, trip type, and a heart save toggle.
• Filter Bar — The shared component with region, budget, and trip-type pill chips, accepting page-specific option data.
• Featured Destination — A destination surfaced on the Home page.
• Weekend Trip — A short-trip destination shown on Weekend Trips, with data distinct from the Explore set.
• Saved Trip — A destination the Traveler has saved; persisted locally on the device.
• Empty State — The friendly illustrated message shown on Saved Trips when no destinations are saved.
• Sample Data — Bundled destination content authored for the product; no external API is used.
• Local Persistence — Storage of the saved-trips set on the visitor's device so it survives across visits.