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

:root {
    --primary-color: #4CAF50; /* Màu xanh lá */
    --secondary-color: #388E3C; /* Màu xanh lá đậm */
    --accent-color: #FF9800; /* Màu cam */
    --text-color: #333333;
    --light-bg: #f5f7fa;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #4CAF50 0%, #388E3C 100%);
    --gradient-accent: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
    --gradient-light: linear-gradient(135deg, #f5f7fa 0%, #e4e8f0 100%);
    --gradient-dark: linear-gradient(135deg, #388E3C 0%, #1B5E20 100%);
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
}

/* Header & Navigation */
header {
    background-color: #fff;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    height: 50px;
}

.logo-img {
    height: 100%;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #007bff;
}

.nav-links .active {
    color: #007bff;
    font-weight: bold;
}

/* Hero Section with Background */
#hero {
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
    background: var(--gradient-primary);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    color: var(--white);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: var(--white);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
}

.cta-button {
    background: var(--primary-color);
    color: var(--white);
    padding: 12px 30px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.cta-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

.cta-button.secondary {
    background: var(--accent-color);
    box-shadow: 0 4px 15px rgba(255, 152, 0, 0.3);
}

.cta-button.secondary:hover {
    background: #F57C00;
    box-shadow: 0 6px 20px rgba(255, 152, 0, 0.4);
}

/* Problem Section with Special Effects */
#problem {
    padding: 80px 0;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-color-light) 0%, var(--secondary-color-light) 100%);
}

#problem::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='10' cy='10' r='2' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");
    opacity: 0.5;
    pointer-events: none;
}

#problem h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    padding: 0 20px;
}

.problem-grid {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.problem-grid::before,
.problem-grid::after {
    content: '';
    position: absolute;
    top: 0;
    width: 200px;
    height: 100%;
    z-index: 2;
}

.problem-grid::before {
    left: 0;
    background: linear-gradient(to right, var(--primary-color-light), transparent);
}

.problem-grid::after {
    right: 0;
    background: linear-gradient(to left, var(--primary-color-light), transparent);
}

.problem-grid-inner {
    display: flex;
    gap: 30px;
    animation: scrollCards 60s linear infinite;
    width: fit-content;
}

@keyframes scrollCards {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-300px * 4 - 90px)); /* 4 cards width + 3 gaps */
    }
}

.problem-card {
    flex: 0 0 300px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    position: relative;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.problem-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.problem-card:hover i {
    transform: rotate(360deg);
}

.problem-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.problem-card p {
    color: var(--text-color-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.problem-card ul {
    list-style: none;
    padding: 0;
}

.problem-card ul li {
    color: var(--text-color-light);
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.problem-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.problem-card:hover ul li::before {
    background: var(--primary-color);
}

.problem-grid-inner:hover {
    animation-play-state: paused;
}

@media (max-width: 768px) {
    #problem h2 {
        font-size: 2rem;
    }

    .problem-grid::before,
    .problem-grid::after {
        width: 100px;
    }

    .problem-card {
        flex: 0 0 280px;
    }

    @keyframes scrollCards {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-280px * 4 - 90px)); /* 4 cards width + 3 gaps for mobile */
        }
    }
}

@media (max-width: 480px) {
    #problem {
        padding: 60px 0;
    }

    .problem-grid::before,
    .problem-grid::after {
        width: 50px;
    }

    .problem-card {
        flex: 0 0 260px;
        padding: 20px;
    }

    .problem-card h3 {
        font-size: 1.2rem;
    }

    @keyframes scrollCards {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-260px * 4 - 90px)); /* 4 cards width + 3 gaps for small mobile */
        }
    }
}

/* Solution Section */
#solution {
    padding: 5rem 1rem;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.solution-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.solution-item {
    animation: slideIn 1s ease;
    transition: all 0.4s ease;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.solution-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
}

.solution-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.2);
}

.solution-item i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.solution-item:hover i {
    color: var(--accent-color);
    transform: scale(1.2) rotate(360deg);
}

.solution-item h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.solution-item:hover h3 {
    color: var(--accent-color);
}

.solution-item p {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.solution-item ul {
    list-style: none;
    text-align: left;
    padding: 0 1rem;
}

.solution-item ul li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.solution-item ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-size: 1.2rem;
}

.solution-item:hover ul li {
    transform: translateX(5px);
}

/* Features Section */
#features {
    padding: 80px 0;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
}

#features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--text-color);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    padding: 0 20px;
}

.features-grid {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.features-grid::before,
.features-grid::after {
    content: '';
    position: absolute;
    top: 0;
    width: 200px;
    height: 100%;
    z-index: 2;
}

.features-grid::before {
    left: 0;
    background: linear-gradient(to right, var(--light-bg), transparent);
}

.features-grid::after {
    right: 0;
    background: linear-gradient(to left, var(--light-bg), transparent);
}

.features-grid-inner {
    display: flex;
    gap: 30px;
    animation: scrollFeatures 80s linear infinite;
    width: fit-content;
}

@keyframes scrollFeatures {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(calc(-300px * 4 - 90px)); /* 4 cards width + 3 gaps */
    }
}

.feature-card {
    flex: 0 0 300px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    position: relative;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.features-grid-inner:hover {
    animation-play-state: paused;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.feature-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.feature-card:hover i {
    transform: rotate(360deg);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-color);
}

.feature-card ul {
    list-style: none;
    padding: 0;
}

.feature-card ul li {
    color: var(--text-color-light);
    margin-bottom: 10px;
    padding-left: 20px;
    position: relative;
}

.feature-card ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent-color);
    border-radius: 50%;
    transition: background-color 0.3s ease;
}

.feature-card:hover ul li::before {
    background: var(--primary-color);
}

@media (max-width: 768px) {
    #features h2 {
        font-size: 2rem;
    }

    .features-grid::before,
    .features-grid::after {
        width: 100px;
    }

    .feature-card {
        flex: 0 0 280px;
    }

    @keyframes scrollFeatures {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-280px * 4 - 90px)); /* 4 cards width + 3 gaps for mobile */
        }
    }
}

@media (max-width: 480px) {
    #features {
        padding: 60px 0;
    }

    .features-grid::before,
    .features-grid::after {
        width: 50px;
    }

    .feature-card {
        flex: 0 0 260px;
        padding: 20px;
    }

    .feature-card h3 {
        font-size: 1.2rem;
    }

    @keyframes scrollFeatures {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(calc(-260px * 4 - 90px)); /* 4 cards width + 3 gaps for small mobile */
        }
    }
}

/* Benefits Section */
#benefits {
    padding: 80px 0;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
}

.benefits-grid {
    width: 100%;
    overflow: hidden;
    position: relative;
    padding: 20px 0;
}

.benefits-grid::before,
.benefits-grid::after {
    content: '';
    position: absolute;
    top: 0;
    width: 200px;
    height: 100%;
    z-index: 2;
}

.benefits-grid::before {
    left: 0;
    background: linear-gradient(to right, var(--light-bg), transparent);
}

.benefits-grid::after {
    right: 0;
    background: linear-gradient(to left, var(--light-bg), transparent);
}

.benefits-grid-inner {
    display: flex;
    gap: 30px;
    animation: scrollBenefits 80s linear infinite;
    width: fit-content;
}

@keyframes scrollBenefits {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(0);
    }
}

.benefit-card {
    flex: 0 0 300px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    position: relative;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.benefits-grid-inner:hover {
    animation-play-state: paused;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.15);
}

.benefit-card h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.benefit-card:hover h3 {
    color: var(--accent-color);
}

.benefit-card ul {
    list-style: none;
}

.benefit-card ul li {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.benefit-card ul li:before {
    content: "→";
    color: var(--primary-color);
    position: absolute;
    left: 0;
}

@media (max-width: 768px) {
    #benefits h2 {
        font-size: 2rem;
    }

    .benefits-grid::before,
    .benefits-grid::after {
        width: 100px;
    }

    .benefit-card {
        flex: 0 0 280px;
    }
}

@media (max-width: 480px) {
    #benefits {
        padding: 60px 0;
    }

    .benefits-grid::before,
    .benefits-grid::after {
        width: 50px;
    }

    .benefit-card {
        flex: 0 0 260px;
        padding: 20px;
    }

    .benefit-card h3 {
        font-size: 1.2rem;
    }
}

/* Testimonials Section */
#testimonials {
    padding: 5rem 1rem;
    background: var(--gradient-light);
    position: relative;
    overflow: hidden;
}

.testimonials-grid {
    display: flex;
    gap: 2rem;
    animation: scrollTestimonials 30s linear infinite;
    width: max-content;
}

@keyframes scrollTestimonials {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

.testimonial-card {
    animation: slideIn 1s ease;
    transition: all 0.4s ease;
    background: var(--gradient-light);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.4s ease;
    border: 2px solid rgba(33, 150, 243, 0.1);
    position: relative;
    overflow: hidden;
    min-width: 300px;
    flex-shrink: 0;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 4rem;
    color: rgba(76, 175, 80, 0.1);
    font-family: serif;
    animation: float 4s infinite;
}

.testimonial-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px rgba(76, 175, 80, 0.2);
    border-color: var(--primary-color);
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.testimonial-card cite {
    display: block;
    text-align: right;
    color: var(--primary-color);
    font-weight: bold;
}

/* Pricing Section */
#pricing {
    padding: 5rem 1rem;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    animation: slideIn 1s ease;
    transition: all 0.4s ease;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.pricing-card.premium {
    background: var(--gradient-primary);
    color: white;
    transform: scale(1.05);
}

.pricing-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.2);
}

.pricing-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.pricing-card:hover h3 {
    color: var(--accent-color);
}

.pricing-card ul {
    list-style: none;
    margin: 2rem 0;
}

.pricing-card ul li {
    margin: 0.5rem 0;
}

/* Contact Section */
#contact {
    padding: 80px 20px;
    background: var(--gradient-3);
    text-align: center;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-info p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: var(--text-color);
}

.contact-info .cta-button {
    display: inline-block;
    padding: 15px 30px;
    font-size: 1.1rem;
    background: var(--primary-color);
    color: white;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.contact-info .cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    background: var(--secondary-color);
}

@media (max-width: 768px) {
    .contact-info {
        padding: 30px 20px;
    }
    
    .contact-info p {
        font-size: 1rem;
    }
    
    .contact-info .cta-button {
        padding: 12px 25px;
        font-size: 1rem;
    }
}

/* Footer */
footer {
    background: #1e3c72;
    color: white;
    padding: 40px 0 20px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-info {
    flex: 1;
    min-width: 300px;
}

.footer-info h3 {
    margin-bottom: 20px;
}

.footer-info p {
    margin-bottom: 10px;
}

.social-links {
    display: flex;
    gap: 20px;
}

.social-links a {
    color: white;
    font-size: 24px;
    transition: opacity 0.3s ease;
}

.social-links a:hover {
    opacity: 0.8;
}

.footer-bottom {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* Section Headers */
section h2 {
    text-align: center;
    font-size: 3.5rem;
    margin-bottom: 4rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 1.5rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.1);
    animation: fadeInUp 1s ease;
}

section h2::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 4px;
    background: var(--gradient-accent);
    border-radius: 2px;
    animation: glow 2s infinite;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: var(--accent-color);
    border-radius: 1px;
    animation: float 3s infinite;
}

/* Responsive adjustments for headers */
@media (max-width: 768px) {
    section h2 {
        font-size: 2.5rem;
        margin-bottom: 3rem;
        letter-spacing: 1px;
    }
    
    section h2::before {
        width: 80px;
        height: 3px;
    }
    
    section h2::after {
        width: 40px;
        height: 2px;
    }
}

/* Hero Section Header */
#hero h1 {
    font-size: 4.5rem;
    margin-bottom: 2rem;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
    animation: fadeInUp 1s ease;
    position: relative;
    padding-bottom: 1.5rem;
}

#hero h1::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 4px;
    background: linear-gradient(90deg, 
        transparent 0%, 
        var(--white) 20%, 
        var(--accent-color) 50%, 
        var(--white) 80%, 
        transparent 100%
    );
    border-radius: 2px;
}

@media (max-width: 768px) {
    #hero h1 {
        font-size: 3rem;
        margin-bottom: 1.5rem;
    }
    
    #hero h1::before {
        width: 100px;
        height: 3px;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content p {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    section h2 {
        font-size: 2rem;
    }
}

/* App Store Button */
.app-store-button {
    display: inline-block;
    transition: transform 0.3s ease;
    max-width: 200px;
    margin: 10px;
}

.app-store-badge {
    width: 100%;
    height: auto;
    max-width: 200px;
    /* Loại bỏ filter để giữ màu gốc của logo */
}

.app-store-button:hover {
    transform: translateY(-3px);
}

/* App Download Section in Footer */
.app-download {
    margin-top: 2rem;
    text-align: center;
}

.app-download h4 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
    color: var(--white);
}

.app-store-link {
    display: inline-block;
    max-width: 200px;
    transition: opacity 0.3s ease;
}

.app-store-link:hover {
    opacity: 0.8;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .app-store-button {
        max-width: 180px;
    }
    
    .app-store-link {
        max-width: 180px;
    }
    
    .app-download {
        margin-top: 1.5rem;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    #solution h2,
    #features h2,
    #benefits h2,
    #testimonials h2,
    #pricing h2,
    #contact h2 {
        font-size: 2.2rem;
    }
    
    .solution-item,
    .feature-card,
    .benefit-card,
    .testimonial-card,
    .pricing-card {
        padding: 2rem;
    }
}

/* Animation Effects */
@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0px);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px rgba(76, 175, 80, 0.2);
    }
    50% {
        box-shadow: 0 0 20px rgba(76, 175, 80, 0.4);
    }
    100% {
        box-shadow: 0 0 5px rgba(76, 175, 80, 0.2);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Card Effects */
.problem-card,
.solution-item,
.feature-card,
.benefit-card,
.testimonial-card,
.pricing-card {
    animation: slideIn 1s ease;
    transition: all 0.4s ease;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.problem-card:hover,
.solution-item:hover,
.feature-card:hover,
.benefit-card:hover,
.testimonial-card:hover,
.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(33, 150, 243, 0.2);
}

/* Icon Effects */
.problem-card i,
.solution-item i,
.feature-card i,
.benefit-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.problem-card:hover i,
.solution-item:hover i,
.feature-card:hover i,
.benefit-card:hover i {
    color: var(--accent-color);
    transform: scale(1.2) rotate(360deg);
}

/* Button Effects */
.cta-button {
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    background: var(--primary-color);
    border: none;
    border-radius: 25px;
    padding: 12px 30px;
    color: var(--white);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    transition: 0.5s;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(76, 175, 80, 0.3);
    background: var(--gradient-accent);
}

/* Form Effects */
.contact-form input,
.contact-form select {
    transition: all 0.3s ease;
    border: 2px solid var(--accent-color);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 15px;
}

.contact-form input:focus,
.contact-form select:focus {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(76, 175, 80, 0.2);
    border-color: var(--primary-color);
    outline: none;
}

/* Testimonial Effects */
.testimonial-card {
    position: relative;
    overflow: hidden;
    background: var(--gradient-light);
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 4rem;
    color: rgba(76, 175, 80, 0.1);
    font-family: serif;
    animation: float 4s infinite;
}

/* Pricing Card Effects */
.pricing-card.premium {
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
    color: var(--white);
}

.pricing-card.premium::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent,
        rgba(255, 255, 255, 0.1),
        transparent
    );
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

/* Social Links Effects */
.social-links a {
    position: relative;
    transition: all 0.3s ease;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin: 0 10px;
}

.social-links a:hover {
    transform: translateY(-5px);
    color: var(--accent-color);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .logo-img {
        height: 60px;
        padding: 8px;
    }
    
    .problem-card,
    .solution-item,
    .feature-card,
    .benefit-card,
    .testimonial-card,
    .pricing-card {
        animation: none;
    }
}

/* Navigation Styles */
.nav-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    background: none;
    border: none;
    color: #333;
    padding: 0.5rem;
    transition: all 0.3s ease;
}

.nav-toggle:hover {
    color: #007bff;
}

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    margin: 0;
    padding: 0;
    transition: all 0.3s ease;
}

@media screen and (max-width: 768px) {
    .nav-toggle {
        display: block;
        position: absolute;
        right: 1rem;
        top: 1rem;
        z-index: 1000;
    }

    .nav-links {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        padding: 2rem;
        z-index: 999;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-links li {
        opacity: 0;
        transform: translateY(20px);
        transition: all 0.3s ease;
        transition-delay: calc(0.1s * var(--i));
    }

    .nav-links.active li {
        opacity: 1;
        transform: translateY(0);
    }

    .nav-links a {
        font-size: 1.2rem;
        padding: 0.5rem 1rem;
        color: #333;
        position: relative;
        transition: all 0.3s ease;
    }

    .nav-links a:hover {
        color: #007bff;
    }

    .nav-links a::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 50%;
        width: 0;
        height: 2px;
        background: #007bff;
        transition: all 0.3s ease;
        transform: translateX(-50%);
    }

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

    .nav-links a.active {
        color: #007bff;
    }

    .nav-links a.active::after {
        width: 100%;
    }

    .logo {
        z-index: 1000;
    }

    /* Animation for menu items */
    .nav-links li:nth-child(1) { --i: 1; }
    .nav-links li:nth-child(2) { --i: 2; }
    .nav-links li:nth-child(3) { --i: 3; }
    .nav-links li:nth-child(4) { --i: 4; }
    .nav-links li:nth-child(5) { --i: 5; }
    .nav-links li:nth-child(6) { --i: 6; }
    .nav-links li:nth-child(7) { --i: 7; }
}