/* styles.css */
:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #A5D6A7;
    --secondary-color: #2196F3;
    --accent-color: #FF9800;
    --text-dark: #263238;
    --text-light: #455A64;
    --text-lighter: #78909C;
    --white: #FFFFFF;
    --light-bg: #F5F7FA;
    --dark-bg: #263238;
    --border-radius: 8px;
    --card-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --container-width: 1200px;
}

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

html {
    font-size: 62.5%; /* 10px base size for easy rem calculations */
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
    font-display: swap;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style-position: inside;
    padding-left: 2rem;
}

h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1.5rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-dark);
}

h1 {
    font-size: 3.6rem;
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 2rem;
}

h2 {
    font-size: 2.8rem;
    position: relative;
    padding-bottom: 1rem;
    margin-bottom: 3rem;
}

h2::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 4px;
    width: 60px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: 2px;
}

h3 {
    font-size: 2.2rem;
    color: var(--primary-dark);
}

p {
    margin-bottom: 1.5rem;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
}

section:nth-child(even) {
    background-color: var(--light-bg);
}

/* Header Styles */
.site-header {
    position: sticky;
    top: 0;
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 1.5rem 0;
    z-index: 1000;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.main-nav {
    display: flex;
    align-items: center;
}

.menu-items ul {
    display: flex;
    gap: 2rem;
    padding: 0;
    list-style: none;
}

.menu-items a {
    color: var(--text-dark);
    font-weight: 600;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

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

.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 1rem;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--primary-color);
    border-radius: 3px;
    transition: var(--transition);
}

/* Language Selector */
.lang-selector {
    position: relative;
    margin-left: 2rem;
}

.lang-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: 1px solid var(--primary-light);
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    font-size: 1.4rem;
    cursor: pointer;
    color: var(--text-dark);
}

.lang-toggle img {
    display: inline-block;
    vertical-align: middle;
    border-radius: 50%;
    object-fit: cover;
}

.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    width: 180px;
    background-color: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    z-index: 1001;
    max-height: 300px;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.5rem;
    color: var(--text-dark);
    font-size: 1.4rem;
    transition: var(--transition);
}

.lang-dropdown a:hover {
    background-color: var(--light-bg);
}

.lang-dropdown img {
    display: inline-block;
    border-radius: 50%;
    object-fit: cover;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 1rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 4px 10px rgba(76, 175, 80, 0.3);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cta-button:hover, .cta-button:focus {
    transform: translateY(-3px);
    box-shadow: 0 6px 15px rgba(76, 175, 80, 0.4);
    color: var(--white);
}

.cta-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(76, 175, 80, 0.4);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #28a745, #20c997);
    color: var(--white);
    overflow: hidden;
    position: relative;
    padding: 8rem 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    color: var(--white);
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
    font-size: 4.2rem;
    margin-bottom: 2rem;
    line-height: 1.2;
}

.hero-content .subtitle {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-content .credibility-text {
    font-size: 1.6rem;
    opacity: 0.8;
    margin-bottom: 3rem;
}

.hero-image {
    position: relative;
    z-index: 1;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
    transform: perspective(1000px) rotateY(-10deg);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: perspective(1000px) rotateY(0);
}

.hero-cta {
    margin-top: 1rem;
    font-size: 1.8rem;
    padding: 1.5rem 3rem;
}

/* Content Grids */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.content-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.image-container {
    margin: 4rem auto;
    max-width: 500px;
    text-align: center;
}

.image-container img {
    border-radius: var(--border-radius);
    box-shadow: var(--card-shadow);
    transition: transform 0.5s ease;
}

.image-container img:hover {
    transform: scale(1.02);
}

/* Ingredients List */
.ingredients-list {
    list-style-type: none;
    padding: 0;
}

.ingredients-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--primary-light);
    display: flex;
    align-items: center;
}

.ingredients-list li:last-child {
    border-bottom: none;
}

.ingredients-list li::before {
    content: "✓";
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 1rem;
}

/* Testimonials Section */
.testimonials-section {
    background: linear-gradient(135deg, #f6f9fc, #eef2f7);
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
    margin-top: 4rem;
}

.testimonial-card {
    background-color: var(--white);
    border-radius: var(--border-radius);
    padding: 3rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.testimonial-card:hover {
    transform: translateY(-5px);
}

.testimonial-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.testimonial-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.testimonial-content p {
    font-style: italic;
    margin-bottom: 2rem;
    flex: 1;
}

.testimonial-content h3 {
    margin-bottom: 0.5rem;
    color: var(--text-dark);
    font-size: 1.8rem;
}

.rating {
    color: var(--accent-color);
    font-size: 1.8rem;
    letter-spacing: 2px;
}

/* FAQ Section */
.faq-section {
    background-color: var(--light-bg);
}

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

details {
    background-color: var(--white);
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
}

summary {
    padding: 2rem;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    transition: var(--transition);
    outline: none;
}

summary::-webkit-details-marker {
    display: none;
}

summary::after {
    content: '+';
    position: absolute;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

details[open] summary::after {
    content: '−';
}

.faq-content {
    padding: 0 2rem 2rem;
}

/* Pros and Cons Section */
.pros-card, .cons-card {
    position: relative;
    overflow: hidden;
}

.pros-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #4CAF50, #8BC34A);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.cons-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #FF9800, #FFC107);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

/* CTA Container */
.cta-container {
    text-align: center;
    margin-top: 4rem;
}

.cta-container .cta-button {
    font-size: 1.8rem;
    padding: 1.5rem 3rem;
}

/* Footer */
.site-footer {
    background-color: var(--dark-bg);
    color: var(--white);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-col h3 {
    color: var(--white);
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -0.8rem;
    height: 3px;
    width: 30px;
    background: var(--primary-color);
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col ul li {
    margin-bottom: 1rem;
}

.footer-col a {
    color: var(--white);
    opacity: 0.8;
    transition: var(--transition);
}

.footer-col a:hover {
    opacity: 1;
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.disclaimer {
    font-size: 1.2rem;
    opacity: 0.7;
    margin-bottom: 2rem;
}

.copyright {
    text-align: center;
    font-size: 1.4rem;
    opacity: 0.8;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Shimmer Loading Effect */
.shimmer {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Utils */
.desktop-only {
    display: inline-block;
}

/* Responsive Styles */
@media (max-width: 1200px) {
    html {
        font-size: 60%;
    }
}

@media (max-width: 991px) {
    html {
        font-size: 58%;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
        max-width: 400px;
        margin: 0 auto 3rem;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    html {
        font-size: 56%;
    }
    
    h1 {
        font-size: 3.2rem;
    }
    
    h2 {
        font-size: 2.6rem;
    }
    
    h3 {
        font-size: 2rem;
    }
    
    .site-header {
        padding: 1rem 0;
    }
    
    .desktop-only {
        display: none;
    }
    
    .hamburger-menu {
        display: block;
        margin-left: 2rem;
    }
    
    .menu-items {
        position: fixed;
        top: -100%;
        left: 0;
        width: 100%;
        height: auto;
        background-color: var(--white);
        padding: 2rem 0;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        transition: top 0.3s ease;
    }
    
    .menu-items.active {
        top: 65px;
    }
    
    .menu-items ul {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }
    
    .menu-items li {
        width: 100%;
        text-align: center;
    }
    
    .menu-items a {
        display: block;
        padding: 1.5rem;
    }
    
    .image-container {
        max-width: 100%;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 52%;
    }
    
    section {
        padding: 5rem 0;
    }
    
    .hero-section {
        padding: 6rem 0;
    }
    
    .hero-content h1 {
        font-size: 3rem;
        line-height: 1.3;
        word-wrap: break-word;
        hyphens: auto;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
    }
    
    .lang-selector {
        margin-left: 1rem;
    }
    
    .lang-toggle {
        padding: 0.5rem;
        font-size: 0;
    }
    
    .lang-toggle img {
        margin-right: 0;
    }
    
    .lang-toggle svg {
        display: none;
    }
}

/* Accessibility Improvements */
:focus {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Frosted glass effect */
.frosted {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.7);
}

/* Neumorphism effect */
.neumorphic {
    border-radius: 20px;
    background: #f0f0f0;
    box-shadow: 10px 10px 20px #d1d1d1, -10px -10px 20px #ffffff;
    transition: var(--transition);
}

.neumorphic:hover {
    box-shadow: 5px 5px 10px #d1d1d1, -5px -5px 10px #ffffff;
}

/* 3D transform on hover */
.transform-3d {
    transition: transform 0.3s ease;
    transform-style: preserve-3d;
}

.transform-3d:hover {
    transform: translateZ(20px) rotateX(5deg) rotateY(5deg);
}

/* Progress bars animation */
.progress-bar {
    height: 8px;
    background-color: var(--light-bg);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 4px;
    width: 0;
    animation: progress 2s ease forwards;
}

@keyframes progress {
    to {
        width: var(--width, 100%);
    }
}