teal-page
which build a single page for design and minimal design
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Project Tasks7
Implement CalculatorContainer for Calculator
As a frontend developer, implement the CalculatorContainer section for the Calculator page. This section serves as the root wrapper and animated background shell. It uses useState for timePhase and hueOffset, and a useEffect with a setInterval (60000ms) to derive the current time phase (morning/day/afternoon/evening/night) from new Date().getHours(), mapping each phase to a hue offset (0–220deg) injected as CSS custom property --cc-hue-offset. useMemo computes phaseConfig (label + color) from the current timePhase. The JSX renders a cc-wrapper div with two framer-motion animated gradient layers (cc-gradient-layer, cc-gradient-layer--secondary) fading in with staggered opacity transitions, a cc-pulse-layer radial pulse div, and a cc-content motion.div that enters with opacity/y/scale animation (cubic bezier [0.22,1,0.36,1]). Inside is a cc-card motion.div with whileHover box-shadow and scale spring animation. A cc-brand motion.div animates letterSpacing from 6px to 2.5px on mount. Apply CalculatorContainer.css with teal (#008080) gradient layers and Alice Blue (#F0F8FF) background per SRD palette.
Setup Frontend Docker Environment
As a DevOps Engineer, configure the Docker environment for the teal-page React frontend. Set up Dockerfile with Node.js base image, multi-stage build for production optimization, and ensure the app serves correctly within the container. Configure environment variables and ensure the app loads within 2 seconds per SRD non-functional requirements.
Setup Global Theme Design System
As a Frontend Developer, establish the global theme and design system for teal-page. Create CSS custom properties (variables) for the full SRD color palette: primary #008080, primary_light #66B2B2, secondary #FF6347, accent #FFD700, highlight #FFA500, bg #F0F8FF, surface rgba(240,248,255,0.8), text #000000, text_muted #696969, border rgba(0,128,128,0.2). Set up global reset/base styles, typography, and shared animation tokens for framer-motion (spring physics defaults). This foundational setup is required before all section-level tasks.
Implement CalculatorDisplay for Calculator
As a frontend developer, implement the CalculatorDisplay section for the Calculator page. This section renders the calculator's numeric display and handles keyboard input. State: displayValue (default '0'), expression (default ''), isFocused (boolean), lastKey (string|null). getSizeClass() returns cd-result-small/cd-result-medium based on digitCount (digits > 8 or > 5). formatNumber() formats the display value with comma separators and negative sign handling. A useCallback handleKeyDown listener on window handles digit input (0–9, max 10 digits), decimal point (prevents duplicates), operators (+,-,*,/ mapped to ×,÷,− symbols), and Enter/= to evaluate the expression by splitting expression string into left operand + operator + right operand, computing result with parseFloat, handling division-by-zero ('Error'), and capping at 8 decimal places with toExponential(4) for overflow. Uses framer-motion AnimatePresence for display value transitions. Apply CalculatorDisplay.css with teal/Alice Blue palette.
Implement CalculatorGrid for Calculator
As a frontend developer, implement the CalculatorGrid section for the Calculator page. This section renders the 19-button calculator keypad using a buttonLayout array defining label, type (function/number/operation/equals), and optional span (for the '0' button spanning two columns). A CalcButton sub-component uses useState for ripples array; handleClick computes ripple position/size from getBoundingClientRect and e.clientX/clientY, appends a ripple object with id/x/y/size, and clears it after 500ms via setTimeout. Each button is a motion.button with whileHover scale 1.08 (hoverSpring: stiffness 300, damping 15, mass 0.6), whileTap scale 0.92 (springConfig: stiffness 400, damping 17, mass 0.8), and staggered mount animation (opacity 0→1, y 20→0) with 0.02s * buttonLayout index delay. A motion.span cg-btn-label has whileTap scale 0.85. Full aria-label mapping for operations (Divide/Multiply/Subtract/Add), equals, and function buttons (All Clear, Toggle sign, Percent). Apply CalculatorGrid.css with teal operation buttons, tomato/gold accent buttons, and ripple overflow:hidden per SRD palette.
Implement Responsive Accessibility Setup
As a Frontend Developer, ensure the calculator is fully responsive across desktop and mobile devices and meets accessibility standards. Implement responsive breakpoints, touch-friendly button sizing for mobile, ARIA roles and labels (building on existing aria-label mappings in CalculatorGrid), keyboard navigation support, and focus management. Validate that the calculator handles up to 10-digit numbers without layout overflow. Note: depends on theme setup (temp_theme_setup) and all three section tasks (5ef17c47, 8493d328, b6642ab9).
Optimize Frontend Load Performance
As a Frontend Developer, optimize the React application to meet the 2-second load time requirement on standard broadband. Apply code splitting, lazy loading, asset optimization, and production build configuration. Audit framer-motion bundle size and apply tree-shaking. Validate Lighthouse performance score and ensure the app loads within the SRD-mandated 2-second threshold.
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