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

:root {
    --primary-color: #25D366;
    --primary-dark: #1DA851;
    --secondary-color: #128C7E;
    --accent-color: #075E54;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --text-light: #999999;
    --background: #ffffff;
    --background-light: #f8f9fa;
    --background-dark: #1a1a1a;
    --border-color: #e1e5e9;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --gradient: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    --gradient-text: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

/* Language Selector */
.language-selector {
    position: relative;
    margin-left: 20px;
}

.language-dropdown {
    position: relative;
    display: inline-block;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
    color: var(--text-primary);
}

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

.language-toggle i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.language-dropdown.active .language-toggle i {
    transform: rotate(180deg);
}

.language-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    min-width: 180px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

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

.language-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 16px;
    background: none;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s ease;
    font-size: 14px;
    color: var(--text-primary);
    text-align: left;
}

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

.language-option.active {
    background: var(--primary-color);
    color: white;
}

.language-option.active:hover {
    background: var(--primary-dark);
}

.language-flag {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.language-name {
    flex: 1;
}

/* Mobile Menu Toggle */
.nav-mobile-menu {
    display: none;
}

.mobile-menu-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: 10px;
}

.mobile-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    margin: 2px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

.mobile-menu-toggle:hover span {
    background: var(--primary-color);
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-logo i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: width 0.3s ease;
}

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

.nav-cta {
    display: flex;
    gap: 15px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: var(--shadow);
}

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

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

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

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.btn-large {
    padding: 16px 32px;
    font-size: 16px;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
}

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 300px;
    height: 600px;
    background: #1a1a1a;
    border-radius: 30px;
    padding: 20px;
    box-shadow: var(--shadow-lg);
    margin: 0 auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
}

.chat-messages {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
    justify-content: center;
}

.message {
    max-width: 80%;
    animation: slideIn 0.5s ease-out;
}

.message.received {
    align-self: flex-start;
}

.message.sent {
    align-self: flex-end;
}

.message-content {
    background: var(--background-light);
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
}

.message.sent .message-content {
    background: var(--gradient);
    color: white;
}

.translation-badge {
    display: block;
    font-size: 0.7rem;
    margin-bottom: 4px;
    opacity: 0.8;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--background);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    color: white;
    font-size: 2rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 100px 0;
    background: var(--background-light);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 60px;
    margin-top: 60px;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 24px;
}

.step-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pricing Section */
.pricing {
    padding: 100px 0;
    background: var(--background);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.pricing-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow);
    position: relative;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient);
    color: white;
    padding: 8px 24px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.pricing-header {
    text-align: center;
    margin-bottom: 40px;
}

.pricing-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
}

.currency {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pricing-features ul {
    list-style: none;
    margin-bottom: 40px;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

/* Demo Section */
.demo {
    padding: 100px 0;
    background: var(--background-light);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.demo-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.demo-text p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.demo-features {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
}

.demo-feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

.demo-feature i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.demo-visual {
    display: flex;
    justify-content: center;
}

.demo-phone {
    width: 250px;
    height: 500px;
    background: #1a1a1a;
    border-radius: 25px;
    padding: 15px;
    box-shadow: var(--shadow-lg);
}

.demo-screen {
    width: 100%;
    height: 100%;
    background: #ffffff;
    border-radius: 15px;
    overflow: hidden;
}

.demo-chat {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
    justify-content: center;
}

.demo-message {
    background: var(--background-light);
    padding: 12px;
    border-radius: 12px;
    animation: pulse 2s infinite;
}

.demo-translation {
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 8px;
}

.demo-text-original {
    font-size: 0.9rem;
    margin-bottom: 4px;
    opacity: 0.7;
}

.demo-text-translated {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--primary-color);
}

/* Get Started Section */
.get-started {
    padding: 100px 0;
    background: var(--gradient);
    color: white;
    text-align: center;
}

.get-started-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 24px;
}

.get-started-content p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: 0.9;
}

.get-started-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.get-started .btn-primary {
    background: white;
    color: var(--primary-color);
}

.get-started .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

.get-started .btn-secondary:hover {
    background: white;
    color: var(--primary-color);
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--background);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.contact-item i {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.contact-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    background: white;
    padding: 40px;
    border-radius: 16px;
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 24px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background: var(--background-dark);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.footer-logo i {
    font-size: 28px;
}

.footer-section p {
    color: #cccccc;
    margin-bottom: 24px;
    line-height: 1.6;
}

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

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

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: #cccccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 20px;
    text-align: center;
    color: #cccccc;
}

.footer-bottom p {
    margin-bottom: 8px;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-mobile-menu {
        display: block;
    }
    
    .language-selector {
        margin-left: 10px;
        margin-right: 10px;
    }
    
    .language-toggle {
        padding: 6px 8px;
        font-size: 12px;
    }
    
    .language-name {
        display: none;
    }
    
    .language-menu {
        right: -10px;
        min-width: 160px;
    }
    
    .mobile-menu-toggle {
        margin-left: 5px;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .steps {
        grid-template-columns: 1fr;
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .demo-content {
        grid-template-columns: 1fr;
    }
    
    .get-started-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .phone-mockup {
        width: 250px;
        height: 500px;
    }
    
    .demo-phone {
        width: 200px;
        height: 400px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .nav-container {
        padding: 0 15px;
        height: 60px;
    }
    
    .nav-logo {
        font-size: 20px;
    }
    
    .nav-logo i {
        font-size: 24px;
    }
    
    .language-selector {
        margin-left: 5px;
        margin-right: 5px;
    }
    
    .language-toggle {
        padding: 4px 6px;
        font-size: 11px;
    }
    
    .language-menu {
        right: -15px;
        min-width: 140px;
    }
    
    .language-option {
        padding: 10px 12px;
        font-size: 13px;
    }
    
    .mobile-menu-toggle {
        width: 35px;
        height: 35px;
        margin-left: 3px;
    }
    
    .mobile-menu-toggle span {
        width: 18px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .feature-card,
    .pricing-card,
    .contact-form {
        padding: 24px;
    }
}