/* CSS Variables */
:root {
    /* Color Palette - Jewel Candy Tones on Cream */
    --color-ruby: #ff6b9d;
    --color-amethyst: #9b59b6;
    --color-emerald: #2ecc71;
    --color-topaz: #f39c12;
    --color-sapphire: #3498db;
    --color-cream: #fef9f3;
    --color-cream-dark: #f5e6d3;
    --color-text-dark: #2c1810;
    --color-text-medium: #5d4e3a;
    --color-text-light: #8b7355;
    --color-border: #e8d4bc;
    --color-shadow: rgba(44, 24, 16, 0.1);
    --color-overlay: rgba(44, 24, 16, 0.6);
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-h1: 32px;
    --font-size-h2: 28px;
    --font-size-h3: 20px;
    --line-height-base: 1.6;
    --line-height-heading: 1.3;
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-2xl: 64px;
    
    /* Layout */
    --header-height: 64px;
    --container-max: 1200px;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-normal: 300ms ease;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--color-text-dark);
    background-color: var(--color-cream);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    font-family: inherit;
    border: none;
    background: none;
    cursor: pointer;
}

/* Sticky Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(254, 249, 243, 0.95);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    height: 64px;
}

.header-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.header-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
}

.header-title {
    font-size: var(--font-size-large);
    font-weight: 600;
    color: var(--color-text-dark);
}

.header-nav {
    display: none;
    align-items: center;
    gap: var(--spacing-md);
}

.nav-link {
    font-size: var(--font-size-base);
    color: var(--color-text-medium);
    transition: color var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-ruby);
}

.nav-link:active {
    color: var(--color-amethyst);
}

.header-cta {
    display: none;
    padding: 10px 20px;
    background-color: var(--color-ruby);
    color: white;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: var(--font-size-small);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.header-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255, 107, 157, 0.3);
}

.header-cta:active {
    transform: translateY(0);
}

.header-cta-mobile {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background-color: var(--color-ruby);
    color: white;
    border-radius: 50%;
    transition: transform var(--transition-fast);
}

.header-cta-mobile:active {
    transform: scale(0.95);
}

/* Hero Section */
.hero {
    padding-top: calc(var(--header-height) + var(--spacing-lg));
    padding-bottom: var(--spacing-2xl);
    background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-cream-dark) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.hero-text {
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-h1);
    font-weight: 700;
    line-height: var(--line-height-heading);
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
    font-size: var(--font-size-large);
    color: var(--color-text-medium);
    line-height: 1.5;
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 14px 24px;
    border: 3px solid var(--color-text-dark);
    border-radius: var(--border-radius-md);
    background-color: transparent;
    color: var(--color-text-dark);
    font-weight: 600;
    transition: background-color var(--transition-normal), color var(--transition-normal), transform var(--transition-fast);
    min-height: 60px;
    position: relative;
}

.download-btn.google-play:hover {
    background-color: var(--color-emerald);
    border-color: var(--color-emerald);
    color: white;
    transform: translateY(-2px);
}

.download-btn.google-play:active {
    transform: translateY(0);
}

.download-btn.app-store {
    background-color: #2a2a2a;
    border-color: #2a2a2a;
    color: rgba(255, 255, 255, 0.55);
    opacity: 0.55;
    filter: grayscale(0.6);
    cursor: not-allowed;
}

.download-btn.app-store:hover {
    background-color: #2a2a2a;
    border-color: #2a2a2a;
    transform: none;
}

.download-icon {
    flex-shrink: 0;
}

.btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.2;
}

.btn-label {
    font-size: 11px;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-store {
    font-size: 18px;
    font-weight: 700;
}

.coming-soon-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background-color: var(--color-topaz);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 4px 8px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.hero-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--color-text-light);
    font-size: var(--font-size-small);
}

.trust-icon {
    width: 24px;
    height: 24px;
    border-radius: 4px;
}

.hero-visual {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.hero-banner {
    width: 100%;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 12px 32px var(--color-shadow);
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) var(--spacing-sm);
    background-color: white;
}

.features-container {
    max-width: var(--container-max);
    margin: 0 auto;
}

.section-title {
    font-size: var(--font-size-h2);
    font-weight: 700;
    line-height: var(--line-height-heading);
    color: var(--color-text-dark);
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: var(--font-size-large);
    color: var(--color-text-medium);
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

.feature-card {
    padding: var(--spacing-md);
    background-color: var(--color-cream);
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-border);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px var(--color-shadow);
}

.feature-card:active {
    transform: translateY(-2px);
}

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-ruby), var(--color-amethyst));
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    color: white;
}

.feature-title {
    font-size: var(--font-size-h3);
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.feature-description {
    font-size: var(--font-size-base);
    color: var(--color-text-medium);
    line-height: 1.6;
}

/* Download CTA Section */
.download-cta {
    padding: var(--spacing-2xl) var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-ruby), var(--color-amethyst));
    color: white;
    text-align: center;
}

.download-cta-container {
    max-width: 800px;
    margin: 0 auto;
}

.download-cta-title {
    font-size: 36px;
    font-weight: 700;
    line-height: var(--line-height-heading);
    margin-bottom: var(--spacing-sm);
}

.download-cta-subtitle {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.download-buttons-large {
    max-width: 600px;
    margin: 0 auto;
}

.download-buttons-large .download-btn {
    min-height: 70px;
    border-color: white;
    color: white;
}

.download-buttons-large .download-btn.google-play {
    background-color: rgba(255, 255, 255, 0.1);
}

.download-buttons-large .download-btn.google-play:hover {
    background-color: white;
    color: var(--color-emerald);
}

.download-buttons-large .download-icon {
    width: 28px;
    height: 28px;
}

.download-buttons-large .btn-store {
    font-size: 20px;
}

/* Mobile Sticky CTA */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-sm);
    background-color: rgba(254, 249, 243, 0.98);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--color-border);
    z-index: 999;
    box-shadow: 0 -4px 12px var(--color-shadow);
}

.mobile-cta-btn {
    display: block;
    width: 100%;
    padding: 16px;
    background-color: var(--color-ruby);
    color: white;
    font-weight: 700;
    font-size: var(--font-size-large);
    border-radius: var(--border-radius-md);
    text-align: center;
    transition: transform var(--transition-fast);
    min-height: 56px;
}

.mobile-cta-btn:active {
    transform: scale(0.98);
}

/* About Section */
.about {
    padding: var(--spacing-2xl) var(--spacing-sm);
    background-color: var(--color-cream);
}

.about-container {
    max-width: 800px;
    margin: 0 auto;
}

.about-text {
    font-size: var(--font-size-base);
    color: var(--color-text-medium);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.about-contact {
    font-size: var(--font-size-base);
    color: var(--color-text-medium);
    margin-top: var(--spacing-lg);
}

.about-email {
    color: var(--color-ruby);
    text-decoration: underline;
    transition: color var(--transition-fast);
}

.about-email:hover {
    color: var(--color-amethyst);
}

/* Footer */
.footer {
    padding: var(--spacing-xl) var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-text-dark);
    color: var(--color-cream);
}

.footer-container {
    max-width: var(--container-max);
    margin: 0 auto;
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.footer-icon {
    width: 32px;
    height: 32px;
    border-radius: 6px;
}

.footer-name {
    font-size: var(--font-size-large);
    font-weight: 600;
}

.footer-links {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.footer-link {
    color: var(--color-cream);
    font-size: var(--font-size-small);
    transition: color var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-ruby);
}

.footer-separator {
    color: rgba(254, 249, 243, 0.5);
}

.footer-contact {
    font-size: var(--font-size-small);
    margin-bottom: var(--spacing-sm);
    color: rgba(254, 249, 243, 0.8);
}

.footer-email {
    color: var(--color-ruby);
    text-decoration: underline;
}

.footer-copyright {
    font-size: var(--font-size-small);
    color: rgba(254, 249, 243, 0.6);
}

/* Tablet and Desktop Responsive Styles */
@media (min-width: 768px) {
    :root {
        --font-size-h1: 48px;
        --font-size-h2: 36px;
        --font-size-h3: 24px;
    }
    
    .header-nav {
        display: flex;
    }
    
    .header-cta {
        display: block;
    }
    
    .header-cta-mobile {
        display: none;
    }
    
    .hero {
        padding-bottom: var(--spacing-2xl);
    }
    
    .hero-content {
        flex-direction: row;
        align-items: center;
        gap: var(--spacing-2xl);
    }
    
    .hero-text {
        flex: 1;
        text-align: left;
    }
    
    .hero-title {
        font-size: 52px;
    }
    
    .hero-subtitle {
        margin-left: 0;
        margin-right: 0;
    }
    
    .download-buttons {
        flex-direction: row;
        justify-content: flex-start;
    }
    
    .download-btn {
        flex: 1;
        max-width: 220px;
    }
    
    .hero-trust {
        justify-content: flex-start;
    }
    
    .hero-visual {
        flex: 1;
        max-width: 550px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .download-buttons-large {
        flex-direction: row;
    }
    
    .download-buttons-large .download-btn {
        flex: 1;
        max-width: 260px;
    }
    
    .mobile-sticky-cta {
        display: none;
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero-title {
        font-size: 56px;
    }
}

/* Accessibility and Motion Preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for keyboard navigation */
a:focus-visible,
button:focus-visible {
    outline: 3px solid var(--color-ruby);
    outline-offset: 2px;
}

/* High contrast support */
@media (prefers-contrast: high) {
    :root {
        --color-text-medium: var(--color-text-dark);
    }
    
    .download-btn {
        border-width: 4px;
    }
}