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

:root {
    --primary: #667eea;
    --primary-dark: #5a6fd8;
    --primary-light: #764ba2;
    --secondary: #f093fb;
    --accent: #4fd1c7;
    --success: #68d391;
    --warning: #f6ad55;
    --error: #fc8181;
    --dark: #2d3748;
    --darker: #1a202c;
    --light: #f7fafc;
    --gray: #718096;
    --gray-light: #e2e8f0;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4fd1c7 0%, #68d391 100%);
    --gradient-dark: linear-gradient(135deg, #2d3748 0%, #1a202c 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 15px 35px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 25px 50px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Inter', 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.7;
    color: var(--dark);
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Header Styles */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 8%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

header.scrolled {
    padding: 1rem 8%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.logo img {
    height: 50px;
    width: auto;
    border-radius: 12px;
    transition: all 0.3s ease;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.logo img:hover {
    transform: scale(1.05) rotate(2deg);
}

nav ul {
    display: flex;
    list-style: none;
    gap: 3rem;
    align-items: center;
}

nav a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 600;
    font-size: 1.05rem;
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Language Switcher */
.lang-switch {
    display: flex;
    gap: 0.5rem;
    background: var(--gray-light);
    padding: 0.4rem;
    border-radius: 16px;
    backdrop-filter: blur(10px);
}

.lang-btn {
    padding: 0.7rem 1.4rem;
    border: none;
    background: transparent;
    border-radius: 12px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.lang-btn:hover {
    color: var(--primary);
    background: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

.lang-btn.active {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-sm);
    transform: translateY(0);
}

.contact-btn {
    padding: 1rem 2.2rem;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 14px;
    cursor: pointer;
    font-weight: 700;
    font-size: 1rem;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    overflow: hidden;
}

.contact-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

.contact-btn:hover::before {
    left: 100%;
}

.contact-btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a479c 100%);
}

.contact-btn:active {
    transform: translateY(-1px);
}

.contact-btn a {
    color: var(--white);
    text-decoration: none;
    font-weight: inherit;
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    padding: 8rem 8% 5rem;
    max-width: 1400px;
    margin: 0 auto;
    gap: 5rem;
    min-height: 100vh;
}

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

.hero-text h1 {
    font-size: 4rem;
    margin-bottom: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
    font-weight: 800;
    letter-spacing: -1px;
    text-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.hero-text p {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    color: var(--gray);
    line-height: 1.8;
    font-weight: 400;
    max-width: 600px;
}

.cta-btn {
    padding: 1.4rem 3rem;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: 16px;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s ease;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s;
}

.cta-btn:hover::before {
    left: 100%;
}

.cta-btn:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: var(--shadow-xl);
    background: linear-gradient(135deg, #5a6fd8 0%, #6a479c 100%);
}

.cta-btn:active {
    transform: translateY(-2px);
}

.cta-btn a {
    color: var(--white);
    text-decoration: none;
    font-weight: inherit;
}

.hero-image {
    flex: 1;
    text-align: center;
    animation: slideInRight 1s ease-out;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 24px;
    box-shadow: var(--shadow-xl);
    transition: all 0.4s ease;
    filter: brightness(1.05) contrast(1.1);
}

.hero-image img:hover {
    transform: scale(1.02) rotate(1deg);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.3);
}

/* Features Section */
.features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    padding: 6rem 8%;
    background: var(--white);
    margin: 4rem auto;
    max-width: 1400px;
    border-radius: 28px;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: var(--gradient-primary);
}

.feature-card {
    text-align: center;
    padding: 3rem 2.5rem;
    flex: 1;
    border-radius: 20px;
    transition: all 0.4s ease;
    background: var(--white);
    border: 2px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 20px 20px 0 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
    background: linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
}

.feature-card img {
    width: 100px;
    height: 100px;
    margin-bottom: 2rem;
    border-radius: 20px;
    padding: 1.2rem;
    background: var(--gradient-primary);
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.feature-card:hover img {
    transform: scale(1.1) rotate(5deg);
    background: var(--gradient-secondary);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--dark);
    font-weight: 700;
    letter-spacing: -0.5px;
}

.feature-card p {
    color: var(--gray);
    line-height: 1.7;
    font-weight: 400;
    font-size: 1.05rem;
}

/* Pricing Section */
.pricing {
    padding: 6rem 8%;
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.pricing h2 {
    font-size: 3.2rem;
    margin-bottom: 5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: -1px;
}

.pricing-plans {
    display: flex;
    gap: 3rem;
    justify-content: center;
    align-items: stretch;
}

.pricing-plan {
    background: var(--white);
    padding: 3.5rem 3rem;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    flex: 1;
    max-width: 400px;
    transition: all 0.4s ease;
    border: 2px solid rgba(102, 126, 234, 0.1);
    position: relative;
    overflow: hidden;
}

.pricing-plan::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
}

.pricing-plan:nth-child(2)::before {
    background: var(--gradient-secondary);
}

.pricing-plan:nth-child(3)::before {
    background: var(--gradient-accent);
}

.pricing-plan:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: rgba(102, 126, 234, 0.3);
}

.pricing-plan h3 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--dark);
    font-weight: 700;
}

.price {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.pricing-plan:nth-child(2) .price {
    color: var(--secondary);
}

.pricing-plan:nth-child(3) .price {
    color: var(--accent);
}

.pricing-plan ul {
    list-style: none;
    text-align: left;
    margin: 3rem 0;
}

.pricing-plan li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--gray-light);
    color: var(--gray);
    position: relative;
    padding-left: 2.5rem;
    font-weight: 400;
    font-size: 1.05rem;
}

.pricing-plan li:before {
    content: "✓";
    color: var(--success);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 1.2rem;
}

.pricing-plan .cta-btn {
    width: 100%;
    margin-top: 2rem;
    border-radius: 16px;
    font-size: 1.1rem;
}

/* Footer */
footer {
    background: var(--gradient-dark);
    color: var(--white);
    padding: 4rem 8% 3rem;
    margin-top: 6rem;
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.footer-text {
    text-align: center;
    margin-bottom: 2rem;
}

.footer-text p {
    font-size: 1rem;
    color: #cbd5e0;
    font-weight: 400;
}

footer .contact-btn {
    display: block;
    margin: 0 auto;
    max-width: 200px;
}

/* Animations */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-80px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(80px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

/* Scroll animations */
.feature-card, .pricing-plan {
    animation: fadeInUp 0.8s ease-out;
}

.feature-card:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-card:nth-child(3) {
    animation-delay: 0.4s;
}

.pricing-plan:nth-child(2) {
    animation-delay: 0.2s;
}

.pricing-plan:nth-child(3) {
    animation-delay: 0.4s;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .hero-text h1 {
        font-size: 3.2rem;
    }
    
    .pricing-plans {
        gap: 2rem;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
        position: relative;
    }
    
    nav ul {
        gap: 1.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 6rem 2rem 3rem;
        gap: 3rem;
    }
    
    .hero-text h1 {
        font-size: 2.5rem;
    }
    
    .hero-text p {
        font-size: 1.1rem;
    }
    
    .features {
        flex-direction: column;
        padding: 4rem 2rem;
        gap: 2rem;
    }
    
    .pricing-plans {
        flex-direction: column;
        align-items: center;
        gap: 2.5rem;
    }
    
    .pricing-plan {
        width: 100%;
        max-width: 400px;
    }
    
    footer {
        padding: 3rem 2rem 2rem;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .pricing h2 {
        font-size: 2.2rem;
    }
    
    .pricing-plan {
        padding: 2.5rem 2rem;
    }
    
    .price {
        font-size: 2.8rem;
    }
    
    .feature-card {
        padding: 2.5rem 2rem;
    }
    
    .cta-btn {
        padding: 1.2rem 2.5rem;
        font-size: 1.1rem;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}