/* --- Base Styles --- */
:root {
    --primary-color: #7a9e7e;
    --primary-dark: #617f64;
    --secondary-color: #f8d7d9;
    --text-color: #333333;
    --light-text: #666666;
    --lightest-text: #999999;
    --background-color: #ffffff;
    --light-background: #f9f9f9;
    --card-background: #ffffff;
    --border-color: #eeeeee;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --accent-color: #e06b75;
    --success-color: #98c379;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --spacing-xxxl: 64px;
    --container-width: 1200px;
    --header-height: 80px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
    font-display: swap;
}

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

ul {
    list-style: none;
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 3px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: var(--spacing-md) auto 0;
    border-radius: 2px;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* --- Header --- */
header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--background-color);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.9);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

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

/* Navigation */
.desktop-nav ul {
    display: flex;
    gap: var(--spacing-xl);
}

.desktop-nav a {
    font-weight: 600;
    color: var(--text-color);
    padding: var(--spacing-sm) 0;
    position: relative;
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width var(--transition-normal);
}

.desktop-nav a:hover::after {
    width: 100%;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    border: none;
    cursor: pointer;
    text-align: center;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* Language Selector */
.language-selector {
    position: relative;
}

#language-button {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 14px;
    color: var(--text-color);
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    padding: 6px 10px;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

#language-button:hover {
    background-color: var(--light-background);
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    width: 180px;
    max-height: 300px;
    overflow-y: auto;
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity var(--transition-normal), transform var(--transition-normal), visibility var(--transition-normal);
    z-index: 1000;
}

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

.dropdown-menu li {
    border-bottom: 1px solid var(--border-color);
}

.dropdown-menu li:last-child {
    border-bottom: none;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    color: var(--text-color);
    transition: background-color var(--transition-fast);
}

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: var(--background-color);
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
    z-index: 999;
}

.mobile-menu.show {
    transform: translateY(0);
    opacity: 1;
}

.mobile-menu ul {
    padding: var(--spacing-lg);
}

.mobile-menu li {
    margin-bottom: var(--spacing-md);
}

.mobile-menu a {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    padding: var(--spacing-sm) 0;
}

#mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 30px;
    position: relative;
}

.hamburger-icon, 
.hamburger-icon::before, 
.hamburger-icon::after {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-color);
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    transition: transform var(--transition-fast), top var(--transition-fast);
}

.hamburger-icon {
    top: 50%;
    transform: translate(-50%, -50%);
}

.hamburger-icon::before {
    content: '';
    top: -8px;
}

.hamburger-icon::after {
    content: '';
    top: 8px;
}

.menu-open .hamburger-icon {
    background-color: transparent;
}

.menu-open .hamburger-icon::before {
    transform: translate(-50%, 8px) rotate(45deg);
}

.menu-open .hamburger-icon::after {
    transform: translate(-50%, -8px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero-section {
    background: linear-gradient(135deg, #eaf5eb 0%, #f8d7d9 100%);
    padding: var(--spacing-xxxl) 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(122, 158, 126, 0.2) 0%, rgba(122, 158, 126, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(248, 215, 217, 0.3) 0%, rgba(248, 215, 217, 0) 70%);
    border-radius: 50%;
    z-index: 0;
}

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

.hero-text {
    animation: fadeIn 1s ease-out;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--light-text);
    margin-bottom: var(--spacing-lg);
}

.credibility {
    font-style: italic;
    color: var(--lightest-text);
    margin-bottom: var(--spacing-xl);
}

.hero-image {
    position: relative;
    animation: floatIn 1.2s ease-out;
}

.hero-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform var(--transition-normal);
}

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

/* --- Intro Section --- */
.intro-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--background-color);
}

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

.feature-card {
    padding: var(--spacing-xl);
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card ul {
    list-style: disc;
    padding-left: var(--spacing-lg);
}

.feature-card li {
    margin-bottom: var(--spacing-sm);
}

/* --- Benefits Section --- */
.benefits-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--background-color);
}

/* --- Application Section --- */
.application-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--light-background);
}

.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card:last-child {
    margin-bottom: 0;
}

/* --- Testimonials Section --- */
.testimonials-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--background-color);
}

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

.testimonial-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.quote-icon {
    stroke: var(--primary-color);
    opacity: 0.2;
    margin-bottom: var(--spacing-md);
}

.testimonial-meta {
    color: var(--lightest-text);
    font-size: 0.9rem;
}

/* --- FAQ Section --- */
.faq-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--light-background);
}

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

details {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

summary {
    padding: var(--spacing-lg);
    font-weight: 600;
    cursor: pointer;
    position: relative;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-fast);
}

summary:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

summary::after {
    content: '+';
    font-size: 1.5rem;
    position: absolute;
    right: var(--spacing-lg);
    color: var(--primary-color);
    transition: transform var(--transition-fast);
}

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

details p {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

/* --- Conclusion Section --- */
.conclusion-section {
    padding: var(--spacing-xxxl) 0;
    background-color: var(--background-color);
}

/* --- Footer --- */
footer {
    background-color: #f5f5f5;
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
}

.footer-section h3 {
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    display: grid;
    gap: var(--spacing-sm);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.disclaimer {
    font-size: 0.9rem;
    color: var(--lightest-text);
    margin-bottom: var(--spacing-md);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.copyright {
    font-size: 0.9rem;
    color: var(--light-text);
}

/* --- Grid Layouts --- */
.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

/* --- Animations --- */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes floatIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* --- Utility Classes --- */
.desktop-only {
    display: block;
}

/* --- Media Queries --- */
@media (max-width: 1200px) {
    :root {
        --container-width: 100%;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .grid-layout {
        gap: var(--spacing-lg);
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
        word-wrap: break-word;
        hyphens: auto;
        line-height: 1.4;
    }
    
    h2 {
        font-size: 1.6rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .desktop-nav {
        display: none;
    }
    
    .desktop-only {
        display: none;
    }
    
    #mobile-menu-toggle {
        display: block;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .hero-section {
        padding: var(--spacing-xxl) 0;
    }
    
    .grid-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
    
    .footer-section ul {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 1.6rem;
    }
    
    .hero-section {
        padding: var(--spacing-xl) 0;
    }
    
    section {
        padding: var(--spacing-xxl) 0;
    }
    
    .feature-card, .card, .testimonial-card {
        padding: var(--spacing-lg);
    }
}

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

/* --- Fancy Effects --- */
.shimmer-effect {
    position: relative;
    overflow: hidden;
}

.shimmer-effect::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: translateX(-100%);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% {
        transform: translateX(100%);
    }
}

/* Frosted Glass Effect */
.frosted-glass {
    background-color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.125);
}

/* 3D Transform Effect */
.transform-3d {
    transition: transform var(--transition-normal);
    transform-style: preserve-3d;
}

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

/* Neumorphism Effect */
.neumorphic {
    background-color: #f0f0f0;
    box-shadow: 
        8px 8px 16px rgba(0, 0, 0, 0.05),
        -8px -8px 16px rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-lg);
}

.neumorphic:hover {
    box-shadow: 
        4px 4px 8px rgba(0, 0, 0, 0.05),
        -4px -4px 8px rgba(255, 255, 255, 0.8),
        inset 4px 4px 8px rgba(0, 0, 0, 0.05),
        inset -4px -4px 8px rgba(255, 255, 255, 0.8);
}

/* Text Gradient */
.text-gradient {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}