/* Base styles */
:root {
    --primary-color: #4a90e2;
    --secondary-color: #34495e;
    --accent-color: #e67e22;
    --background-color: #f9f9f9;
    --text-color: #333;
    --light-text: #777;
    --white: #ffffff;
    --border-color: #e1e1e1;
    --box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    --card-background: #ffffff;
    --gradient-start: #6a11cb;
    --gradient-end: #2575fc;
    --neu-shadow-light: 8px 8px 16px #e0e0e0, -8px -8px 16px #ffffff;
    --neu-shadow-dark: 5px 5px 10px #d1d1d1, -5px -5px 10px #ffffff;
    --border-radius: 10px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

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

a:hover {
    color: var(--accent-color);
}

ul {
    list-style: none;
}

section {
    padding: 80px 0;
}

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

section:nth-child(odd) {
    background-color: var(--background-color);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    font-weight: 700;
    color: var(--secondary-color);
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    margin: 15px auto 0;
    border-radius: 2px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    line-height: 1.3;
}

h1 {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 700;
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
}

h3 {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

p {
    margin-bottom: 1.5rem;
}

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

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

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

.nav-menu {
    position: relative;
}

.nav-toggle {
    display: none;
    cursor: pointer;
    position: relative;
    width: 30px;
    height: 24px;
}

.hamburger, .hamburger::before, .hamburger::after {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background-color: var(--secondary-color);
    border-radius: 3px;
    transition: var(--transition);
}

.hamburger {
    top: 50%;
    transform: translateY(-50%);
}

.hamburger::before {
    content: '';
    top: -10px;
}

.hamburger::after {
    content: '';
    bottom: -10px;
}

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

.nav-content ul {
    display: flex;
    gap: 2rem;
}

.nav-content ul li a {
    color: var(--secondary-color);
    font-weight: 600;
    transition: var(--transition);
}

.nav-content ul li a:hover {
    color: var(--primary-color);
}

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

.selected-language {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 8px 12px;
    border-radius: var(--border-radius);
    background-color: var(--background-color);
    transition: var(--transition);
}

.selected-language:hover {
    background-color: #f0f0f0;
}

.flag-icon {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}

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

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(5px);
}

.language-dropdown li {
    padding: 8px 15px;
    transition: var(--transition);
}

.language-dropdown li:hover {
    background-color: var(--background-color);
}

.language-dropdown li a {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-color);
}

/* Call to Action Button */
.cta-button {
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    color: white;
    font-weight: 600;
    padding: 10px 20px;
    border-radius: 30px;
    box-shadow: 0 4px 10px rgba(106, 17, 203, 0.3);
    transition: all 0.3s ease;
    text-align: center;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 15px rgba(106, 17, 203, 0.4);
    color: white;
}

.cta-button:active {
    transform: translateY(1px);
    box-shadow: 0 2px 8px rgba(106, 17, 203, 0.3);
}

/* Hero Section */
.hero {
    background: linear-gradient(to right, var(--gradient-start), var(--gradient-end));
    color: var(--white);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z' fill='rgba(255,255,255,.07)' fill-rule='evenodd'/%3E%3C/svg%3E");
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: var(--white);
    background: none;
    -webkit-text-fill-color: white;
}

.hero .subtitle {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
}

.hero .credibility {
    font-size: 0.9rem;
    opacity: 0.8;
    margin-bottom: 2rem;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    border-radius: 15px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    transform: perspective(800px) rotateY(-10deg);
    transition: transform 0.5s ease;
    animation: float 6s ease-in-out infinite;
}

.hero-image img:hover {
    transform: perspective(800px) rotateY(0deg);
}

@keyframes float {
    0% {
        transform: perspective(800px) rotateY(-10deg) translateY(0px);
    }
    50% {
        transform: perspective(800px) rotateY(-5deg) translateY(-15px);
    }
    100% {
        transform: perspective(800px) rotateY(-10deg) translateY(0px);
    }
}

/* Card Container */
.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--neu-shadow-light);
    transition: var(--transition);
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.card h3 {
    margin-bottom: 15px;
    color: var(--secondary-color);
}

.card-image {
    margin-top: auto;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.card-image img {
    transition: transform 0.5s ease;
}

.card-image img:hover {
    transform: scale(1.05);
}

/* Grid Container */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.grid-item {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--neu-shadow-light);
    transition: var(--transition);
}

.grid-item:hover {
    box-shadow: var(--neu-shadow-dark);
}

/* Two Column Layout */
.two-column {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.column {
    display: flex;
    flex-direction: column;
}

/* Image Text Container */
.image-text-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    align-items: center;
}

.text-content {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.management-tip {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--neu-shadow-light);
    transition: var(--transition);
}

.management-tip:hover {
    box-shadow: var(--neu-shadow-dark);
}

.image-content {
    position: relative;
}

.image-content::before {
    content: '';
    position: absolute;
    top: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary-color);
    border-radius: var(--border-radius);
    z-index: -1;
    transition: var(--transition);
}

.image-content:hover::before {
    top: -10px;
    right: -10px;
}

/* Alternative Cards */
.alternative-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.alt-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.alt-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: linear-gradient(to bottom, var(--gradient-start), var(--gradient-end));
    transition: var(--transition);
}

.alt-card:hover {
    transform: translateX(5px);
}

.alt-card:hover::before {
    width: 7px;
}

/* Testimonials */
.testimonial-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.testimonial {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.testimonial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    z-index: -1;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.testimonial:hover {
    transform: translateY(-10px);
    color: var(--white);
}

.testimonial:hover::before {
    opacity: 1;
}

.testimonial:hover h3 {
    color: var(--white);
}

.testimonial:hover .testimonial-icon svg {
    stroke: var(--white);
}

.testimonial-icon {
    margin-bottom: 15px;
    color: var(--primary-color);
}

.testimonial p {
    font-style: italic;
    margin-bottom: 15px;
}

.testimonial h3 {
    font-size: 1.1rem;
    text-align: right;
    color: var(--secondary-color);
    transition: var(--transition);
}

/* Conclusion Section */
.conclusion-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.conclusion-content .cta-button {
    margin-top: 30px;
}

/* FAQ Section */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

details {
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--neu-shadow-light);
    transition: var(--transition);
}

details.active {
    box-shadow: var(--box-shadow);
}

summary {
    padding: 20px;
    background-color: var(--card-background);
    cursor: pointer;
    font-weight: 600;
    color: var(--secondary-color);
    position: relative;
    outline: none;
    transition: var(--transition);
}

summary:hover {
    background-color: #f5f5f5;
}

summary::after {
    content: '+';
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    transition: var(--transition);
}

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

details p {
    padding: 20px;
    background-color: var(--white);
    margin: 0;
}

/* Footer */
footer {
    background-color: var(--secondary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    color: var(--white);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-column ul li a {
    color: #ccc;
    transition: var(--transition);
}

.footer-column ul li a:hover {
    color: var(--white);
    padding-left: 5px;
}

.footer-disclaimer {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    margin-bottom: 30px;
}

.footer-disclaimer p {
    font-size: 0.9rem;
    color: #aaa;
    line-height: 1.5;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 0.9rem;
    margin: 0;
    color: #aaa;
}

/* Media Queries */
@media (max-width: 1200px) {
    .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    h1 {
        font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    }
    
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-content {
        text-align: center;
    }
    
    .two-column {
        grid-template-columns: 1fr;
    }
    
    .image-text-container {
        grid-template-columns: 1fr;
    }
    
    .image-content {
        order: -1;
    }
}

@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .header-container {
        padding: 1rem;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .nav-content {
        position: absolute;
        top: -300px;
        left: 0;
        width: 100vw;
        background-color: var(--white);
        padding: 20px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s ease;
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-content.active {
        top: 100%;
        opacity: 1;
        visibility: visible;
    }
    
    .nav-content ul {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }
    
    .nav-content ul li {
        width: 100%;
        padding: 10px 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-content ul li:last-child {
        border-bottom: none;
    }
    
    .language-selector {
        margin-left: 1rem;
    }
    
    .desktop-only {
        display: none;
    }
    
    .testimonial-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .section-title {
        font-size: 1.8rem;
    }
    
    .card-container, .grid-container, .alternative-cards {
        grid-template-columns: 1fr;
    }
    
    .card, .grid-item, .alt-card {
        padding: 20px;
    }
    
    .header-container {
        padding: 0.8rem;
    }
    
    .hero {
        padding: 60px 0;
    }
    
    h1 {
        font-size: clamp(1.6rem, 3vw, 2.2rem);
        word-wrap: break-word;
        line-height: 1.4;
        hyphens: auto;
    }
}

/* Advanced Features and Visual Effects */
.shimmer {
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 50%,
        rgba(255, 255, 255, 0) 100%
    );
    background-size: 200% 100%;
    animation: shimmer 2s infinite;
}

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

/* Frosted Glass Effect */
.frost {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.7);
}

/* Improve GPU acceleration */
.card, .grid-item, .alt-card, .testimonial, .hero-image img {
    will-change: transform;
    transform: translate3d(0, 0, 0);
}

/* Font display for text optimization */
h1, h2, h3, p, a, li, span {
    font-display: swap;
}