/* styles.css */
:root {
    --primary-color: #4a6fdc;
    --primary-dark: #3655b3;
    --secondary-color: #42c3aa;
    --accent-color: #f7b955;
    --text-color: #333333;
    --light-text: #666666;
    --lightest-text: #999999;
    --background-color: #ffffff;
    --light-bg: #f8f9fa;
    --dark-bg: #2c3e50;
    --border-color: #e1e4e8;
    --shadow-color: rgba(0, 0, 0, 0.08);
    --card-bg: #ffffff;
    --gradient-start: #4a6fdc;
    --gradient-end: #42c3aa;
    --danger-color: #e74c3c;
    --success-color: #2ecc71;
    --border-radius: 8px;
    --card-border-radius: 12px;
    --button-border-radius: 50px;
    --transition-speed: 0.3s;
    --container-width: 1200px;
    --header-height: 70px;
}

/* Base styles */
* {
    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;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-display: swap;
}

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

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

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

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 0.5em;
    line-height: 1.3;
    color: var(--text-color);
    font-weight: 700;
}

h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 0.7em;
    line-height: 1.2;
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    margin-bottom: 1em;
    text-align: center;
}

h3 {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    margin-bottom: 0.8em;
}

h4 {
    font-size: clamp(1rem, 2vw, 1.3rem);
}

p {
    margin-bottom: 1.5em;
    color: var(--light-text);
}

.subtitle {
    font-size: clamp(1rem, 2vw, 1.3rem);
    margin-bottom: 1.5em;
    color: var(--light-text);
}

/* Header */
.header {
    background-color: var(--background-color);
    box-shadow: 0 2px 10px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
}

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

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    z-index: 1001;
}

.nav-menu {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 30px;
    position: relative;
    z-index: 1001;
}

.hamburger, 
.hamburger::before, 
.hamburger::after {
    display: block;
    width: 24px;
    height: 3px;
    background-color: var(--primary-color);
    position: absolute;
    transition: transform 0.3s, opacity 0.3s;
}

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

.hamburger::before, 
.hamburger::after {
    content: '';
    left: 0;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

.menu-toggle.active .hamburger {
    background-color: transparent;
}

.menu-toggle.active .hamburger::before {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active .hamburger::after {
    transform: rotate(-45deg) translate(5px, -5px);
}

.menu-items {
    display: flex;
    gap: 1.5rem;
}

.menu-items a {
    color: var(--text-color);
    font-weight: 600;
    padding: 0.5rem;
    transition: color var(--transition-speed) ease;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Language selector */
.language-selector {
    position: relative;
    z-index: 1000;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.8rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

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

.lang-btn img {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    min-width: 200px;
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow-color);
    padding: 0.5rem 0;
    margin-top: 0.5rem;
    visibility: hidden;
    opacity: 0;
    transform: translateY(-10px);
    transition: all var(--transition-speed) ease;
    max-height: 300px;
    overflow-y: auto;
}

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

.lang-dropdown li a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 0.8rem 1rem;
    color: var(--text-color);
    transition: background-color var(--transition-speed) ease;
}

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

.lang-dropdown li a img {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    object-fit: cover;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    font-weight: 600;
    border-radius: var(--button-border-radius);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    box-shadow: 0 4px 10px rgba(74, 111, 220, 0.2);
    text-align: center;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(74, 111, 220, 0.3);
    color: white;
}

.cta-button.animated {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(74, 111, 220, 0.5);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(74, 111, 220, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(74, 111, 220, 0);
    }
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    padding: 5rem 0;
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
}

.hero-content {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.hero-text {
    flex: 1;
}

.hero-text h1,
.hero-text p {
    color: white;
    background: none;
    -webkit-background-clip: initial;
    background-clip: initial;
}

.hero-text .subtitle {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    opacity: 0.9;
}

.credibility-text {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.85;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.hero-image img {
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
    max-width: 500px;
    width: 100%;
    height: auto;
    object-fit: cover;
    transform: perspective(800px) rotateY(-5deg);
    transition: transform var(--transition-speed) ease;
}

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

/* Introduction Section */
.introduction-section {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.card-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.card {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    padding: 2rem;
    box-shadow: 0 10px 20px var(--shadow-color);
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px var(--shadow-color);
}

.card-icon {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.card h3 {
    margin-bottom: 1rem;
}

.card p {
    margin-bottom: 0;
}

/* Features Section */
.features-section {
    padding: 5rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.features-grid.reverse {
    direction: rtl;
}

.features-grid.reverse > * {
    direction: ltr;
}

.feature-content h3 {
    margin-bottom: 1.5rem;
}

.feature-list {
    margin-top: 1.5rem;
}

.feature-list li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.8rem;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 18px;
    height: 2px;
    background-color: var(--primary-color);
}

.feature-image img {
    border-radius: var(--card-border-radius);
    box-shadow: 0 15px 30px var(--shadow-color);
    width: 100%;
    height: auto;
    object-fit: cover;
    clip-path: polygon(0 0, 100% 0, 100% 85%, 85% 100%, 0 100%);
    transition: all var(--transition-speed) ease;
}

.feature-image img:hover {
    clip-path: polygon(0 0, 100% 0, 100% 100%, 0 100%);
}

/* Comparison Section */
.comparison-section {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.comparison-card {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    overflow: hidden;
    box-shadow: 0 10px 20px var(--shadow-color);
    transition: transform var(--transition-speed) ease;
}

.comparison-card:hover {
    transform: translateY(-10px);
}

.comparison-header {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.comparison-header h3 {
    margin: 0;
    color: white;
}

.comparison-content {
    padding: 1.5rem;
}

.comparison-content ul {
    margin-bottom: 1.5rem;
}

.comparison-content li {
    margin-bottom: 0.8rem;
    position: relative;
    padding-left: 1.8rem;
}

.comparison-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.progress-bar {
    background-color: #e9ecef;
    border-radius: 50px;
    height: 8px;
    margin-bottom: 0.5rem;
    overflow: hidden;
    position: relative;
}

.progress {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    height: 100%;
    border-radius: 50px;
    width: 0;
    transition: width 1.5s ease-in-out;
}

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

/* Mattress Section */
.mattress-section {
    padding: 5rem 0;
}

.mattress-types {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.mattress-type {
    background-color: var(--light-bg);
    padding: 1.2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform var(--transition-speed) ease;
}

.mattress-type:hover {
    transform: translateY(-5px);
}

.mattress-type h4 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.mattress-type p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

/* Testimonial Section */
.testimonial-section {
    padding: 5rem 0;
    background-color: var(--light-bg);
}

.testimonial-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.testimonial {
    background-color: var(--card-bg);
    border-radius: var(--card-border-radius);
    padding: 2rem;
    box-shadow: 0 10px 20px var(--shadow-color);
    text-align: center;
    position: relative;
    transition: transform var(--transition-speed) ease;
}

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

.testimonial-icon {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.testimonial p {
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial h3 {
    margin-bottom: 0.3rem;
    font-size: 1.2rem;
}

.testimonial-location {
    color: var(--lightest-text);
    font-size: 0.9rem;
    margin-bottom: 0;
}

/* FAQ Section */
.faq-section {
    padding: 5rem 0;
}

.faq-container {
    max-width: 800px;
    margin: 3rem auto 0;
}

details {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    box-shadow: 0 5px 15px var(--shadow-color);
    overflow: hidden;
}

summary {
    padding: 1.5rem;
    cursor: pointer;
    font-weight: 600;
    position: relative;
    outline: none;
    list-style: none;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-speed) ease;
}

summary:hover {
    background-color: var(--light-bg);
}

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

summary::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    font-size: 1.5rem;
    transition: transform var(--transition-speed) ease;
}

details[open] summary::after {
    transform: rotate(45deg);
}

.faq-content {
    padding: 0 1.5rem 1.5rem;
}

.faq-content p {
    margin-bottom: 0;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

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

.cta-content h2,
.cta-content p {
    color: white;
}

.cta-content .cta-button {
    background: white;
    color: var(--primary-color);
    margin-top: 1.5rem;
    font-size: 1.1rem;
    padding: 1rem 2rem;
}

.cta-content .cta-button:hover {
    background: rgba(255, 255, 255, 0.9);
}

/* Footer */
.footer {
    background-color: var(--dark-bg);
    color: white;
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-column p,
.footer-column a {
    color: rgba(255, 255, 255, 0.8);
}

.footer-column ul li {
    margin-bottom: 0.8rem;
}

.footer-column ul a:hover {
    color: white;
    text-decoration: underline;
}

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

.copyright {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 1rem;
}

.disclaimer {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 0;
}

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

/* Media Queries */
@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .feature-image {
        order: -1;
    }
    
    .features-grid.reverse .feature-image {
        order: -1;
    }
}

@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
    }
    
    .hero-text {
        text-align: center;
        margin-bottom: 2rem;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .menu-items {
        position: absolute;
        top: var(--header-height);
        left: 0;
        right: 0;
        background-color: var(--background-color);
        flex-direction: column;
        text-align: center;
        padding: 1rem 0;
        box-shadow: 0 5px 10px var(--shadow-color);
        visibility: hidden;
        opacity: 0;
        transform: translateY(-10px);
        transition: all var(--transition-speed) ease;
    }
    
    .menu-items.active {
        visibility: visible;
        opacity: 1;
        transform: translateY(0);
    }
    
    .testimonial-container {
        grid-template-columns: 1fr;
    }
    
    .desktop-only {
        display: none;
    }
}

@media (max-width: 576px) {
    .card-container,
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-section {
        padding: 3rem 0;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .header-actions {
        gap: 0.5rem;
    }
}

/* Accessibility improvements */
:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* Shimmer loading effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    animation: shimmer 2s infinite linear;
    background: linear-gradient(to right, var(--light-bg) 4%, #f0f0f0 25%, var(--light-bg) 36%);
    background-size: 1000px 100%;
}

/* Frosted glass effect */
.frosted-glass {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

/* Text gradient */
.text-gradient {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Neumorphism effect */
.neumorphic {
    border-radius: 50px;
    background: var(--background-color);
    box-shadow: 20px 20px 60px #d9d9d9, -20px -20px 60px #ffffff;
}

/* 3D Transform on hover */
.transform-3d {
    transition: transform var(--transition-speed) ease;
}

.transform-3d:hover {
    transform: translateY(-10px) rotateY(10deg);
}

/* Overlay effect */
.overlay {
    position: relative;
    overflow: hidden;
}

.overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: opacity var(--transition-speed) ease;
}

.overlay:hover::after {
    opacity: 1;
}