/* ============================================
   FridgeSmart Landing Page - Main Styles
   ============================================ */

/* CSS Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Root Variables */
:root {
    /* Colors - Matching FridgeSmart App Theme */
    --primary-color: #FF9A00;         /* Orange500 - App's primary color */
    --primary-dark: #E68A00;          /* Orange600 - Darker shade */
    --primary-light: #FFAE33;         /* Orange400 - Lighter shade */
    --secondary-color: #388E3C;       /* Success Green - App's secondary */
    --secondary-dark: #2E7D32;        /* Darker green */
    --accent-color: #1565C0;          /* Info Blue - App's accent color */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #FFFFFF;
    --bg-light: #FAFAFA;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.15);
    --gradient-hero: linear-gradient(135deg, #FF9A00 0%, #FFAE33 50%, #FFC266 100%);  /* Orange gradient matching app theme */
    --gradient-overlay: linear-gradient(to bottom, rgba(0,0,0,0.3), rgba(0,0,0,0.1));

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-h1: 48px;
    --font-size-h2: 36px;
    --font-size-h3: 24px;
    --font-size-h4: 20px;
    --line-height-base: 1.6;
    --line-height-heading: 1.2;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 32px;
    --spacing-xl: 48px;
    --spacing-xxl: 64px;
    --spacing-xxxl: 96px;

    /* Layout */
    --container-width: 1200px;
    --border-radius: 8px;
    --border-radius-lg: 16px;
    --transition: all 0.3s ease;
}

/* Base Styles */
html {
    font-size: var(--font-size-base);
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    font-family: var(--font-family);
    color: var(--text-primary);
    line-height: var(--line-height-base);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: var(--line-height-heading);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    font-size: var(--font-size-base);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-light);
    border: 2px solid var(--text-light);
}

.btn-secondary:hover {
    background-color: var(--text-light);
    color: var(--primary-color);
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-h4);
    font-weight: 700;
    color: var(--primary-color);
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover {
    color: var(--primary-color);
    background-color: var(--bg-light);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-xs);
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 3px;
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    background: var(--gradient-hero);
    color: var(--text-light);
    padding: calc(70px + var(--spacing-xxxl)) 0 var(--spacing-xxxl);
    min-height: 90vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
}

.hero-description {
    font-size: var(--font-size-large);
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.stat {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.stat-number {
    font-size: var(--font-size-h2);
    font-weight: 800;
}

.stat-label {
    font-size: var(--font-size-small);
    opacity: 0.9;
}

.phone-mockup {
    position: relative;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 9/19.5;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 40px;
    padding: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);  /* Use app's orange gradient */
    border-radius: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.mockup-placeholder {
    font-size: var(--font-size-h3);
    color: var(--text-light);
}

/* ============================================
   Features Section
   ============================================ */
.features {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--bg-white);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-xxl);
}

.section-title {
    margin-bottom: var(--spacing-sm);
}

.section-description {
    font-size: var(--font-size-large);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.feature-card {
    padding: var(--spacing-lg);
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.feature-icon img {
    width: 64px;
    height: 64px;
    display: block;
    margin: 0 auto;
}

.feature-title {
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-description {
    font-size: var(--font-size-base);
}

.feature-coming-soon {
    opacity: 0.6;
    position: relative;
}

.badge-soon {
    display: inline-block;
    font-size: 0.7rem;
    background-color: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: 600;
    margin-left: 8px;
    vertical-align: middle;
}

/* ============================================
   Screenshots Section
   ============================================ */
.screenshots {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--bg-light);
}

.screenshot-carousel {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: var(--spacing-lg) 0;
}

.carousel-track {
    display: flex;
    overflow: hidden;
    position: relative;
}

.screenshot-slide {
    min-width: 100%;
    display: none;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
}

.screenshot-slide.active {
    display: flex;
}

.screenshot-phone {
    width: 100%;
    max-width: 300px;
    aspect-ratio: 9/19.5;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 32px;
    padding: 12px;
    box-shadow: var(--shadow-lg);
}

.screenshot-content {
    width: 100%;
    height: 100%;
    background: var(--gradient-hero);  /* Use app's orange gradient */
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.screenshot-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 24px;
}

.screenshot-label {
    font-size: var(--font-size-h4);
    color: var(--text-light);
    font-weight: 600;
}

.screenshot-caption {
    font-size: var(--font-size-large);
    color: var(--text-secondary);
    text-align: center;
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.carousel-button:hover {
    background-color: var(--primary-color);
    color: var(--text-light);
    border-color: var(--primary-color);
}

.carousel-prev {
    left: -60px;
}

.carousel-next {
    right: -60px;
}

/* ============================================
   Download Section
   ============================================ */
.download {
    padding: var(--spacing-xxxl) 0;
    background: var(--gradient-hero);
    color: var(--text-light);
}

.download-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.download-content .section-title,
.download-content .section-description {
    color: var(--text-light);
}

.download-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin: var(--spacing-xl) 0;
    flex-wrap: wrap;
}

.store-badge {
    display: inline-block;
    transition: var(--transition);
    width: 160px;
    height: 60px;
}

.store-badge:hover {
    transform: translateY(-4px);
}

.store-badge img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.store-badge-placeholder {
    display: inline-block;
    padding: 16px 32px;
    background-color: var(--bg-white);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    font-size: var(--font-size-large);
    font-weight: 600;
}

.download-info {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
}

.info-icon {
    font-size: var(--font-size-large);
    font-weight: 700;
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--bg-white);
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-description {
    font-size: var(--font-size-large);
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.about-feature {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--bg-light);
    border-radius: var(--border-radius-lg);
}

.about-feature-icon {
    font-size: 32px;
    flex-shrink: 0;
}

.about-feature h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.about-feature p {
    font-size: var(--font-size-small);
    color: var(--text-secondary);
    margin: 0;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background-color: var(--text-primary);
    color: var(--text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    color: var(--text-light);
}

.footer-brand .logo-text {
    color: var(--text-light);
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.7);
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-column h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-base);
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: var(--spacing-xs);
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-small);
    transition: var(--transition);
}

.footer-column a:hover {
    color: var(--primary-light);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-small);
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    font-size: 20px;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

/* ============================================
   Language Selector
   ============================================ */

.language-selector {
    position: relative;
    margin-left: var(--spacing-sm);
}

.language-toggle {
    background: transparent;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.language-toggle:hover {
    background-color: var(--bg-light);
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xs) 0;
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
    z-index: 1000;
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s ease, color 0.2s ease;
    font-size: var(--font-size-base);
}

.language-option:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.language-option.active {
    background-color: var(--primary-color);
    color: var(--text-light);
    font-weight: 600;
}

/* ============================================
   Icon Updates (SVG replacements)
   ============================================ */

/* Remove emoji-based icon styles */
.info-icon {
    display: none; /* Hide old emoji checkmarks */
}

/* New SVG icon styles */
.info-icon-svg {
    flex-shrink: 0;
    margin-right: var(--spacing-xs);
}

.about-feature-icon {
    display: none; /* Hide old emoji icons */
}

.about-feature-icon-svg {
    flex-shrink: 0;
    margin-right: var(--spacing-sm);
}

.about-feature {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

/* ============================================
   Mobile Responsive Updates
   ============================================ */

@media (max-width: 768px) {
    .language-selector {
        margin-left: 0;
        margin-top: var(--spacing-sm);
    }

    .language-dropdown {
        right: auto;
        left: 0;
    }
}