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

:root {
    --primary-color: #1a237e;
    --secondary-color: #0d47a1;
    --accent-color: #f50057;
    --text-color: #2c3e50;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --gradient-primary: linear-gradient(135deg, #1a237e, #0d47a1);
    --gradient-accent: linear-gradient(135deg, #f50057, #ff4081);
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background-color: var(--white);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.5px;
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-accent);
    margin: 1.5rem auto;
    border-radius: 2px;
}

/* Navigation */
.navbar {
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

.navbar.scroll-down {
    transform: translateY(-100%);
}

.navbar.scroll-up {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: color 0.3s ease;
    position: relative;
    font-size: 1.1rem;
}

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

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

/* Hero Section */
.hero {
    background: var(--gradient-primary);
    color: var(--white);
    padding: 12rem 0 6rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><rect width="1" height="1" fill="rgba(255,255,255,0.05)"/></svg>');
    opacity: 0.1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
}

.hero .subheadline {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 1s ease 0.2s;
    animation-fill-mode: both;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.hero-feature {
    text-align: center;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.hero-feature:hover {
    transform: translateY(-5px);
}

.hero-feature i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.hero-feature p {
    color: var(--white);
    font-size: 1.2rem;
    margin: 0;
}

.partners {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease 0.6s;
    animation-fill-mode: both;
}

.partners img {
    max-width: 150px;
    height: auto;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.partners img:hover {
    opacity: 1;
}

.cta-button {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    background: var(--gradient-accent);
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    margin-top: 2rem;
    box-shadow: 0 4px 15px rgba(245, 0, 87, 0.3);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 0, 87, 0.4);
}

/* About Section */
.about {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

.about p {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    opacity: 1;
}

/* Data Issues Section */
.data-issues {
    padding: 6rem 0;
}

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

.issue-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.issue-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.issue-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.issue-card:hover::before {
    transform: scaleX(1);
}

.issue-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.issue-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.2rem;
    font-size: 1.6rem;
}

.issue-card p {
    color: var(--text-color);
    opacity: 1;
    line-height: 1.8;
}

/* Services Section */
.services {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.service-category {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.service-category h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.8rem;
    position: relative;
    padding-bottom: 1rem;
}

.service-category h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--gradient-accent);
    border-radius: 2px;
}

.service-category ul {
    list-style: none;
}

.service-category li {
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    color: var(--text-color);
}

.service-category i {
    color: var(--accent-color);
    font-size: 1.2rem;
}

/* Why Choose Us Section */
.why-us {
    padding: 6rem 0;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

.benefit-card {
    text-align: center;
    padding: 2.5rem;
    background-color: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

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

.benefit-card i {
    font-size: 2rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.benefit-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.2rem;
    font-size: 1.6rem;
}

.benefit-card p {
    color: var(--text-color);
    opacity: 1;
    line-height: 1.8;
}

/* Testimonials Section */
.testimonials {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.testimonial-card {
    background-color: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    position: relative;
}

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 4rem;
    color: var(--secondary-color);
    opacity: 0.1;
}

.testimonial-card p {
    font-style: italic;
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: var(--text-color);
}

.testimonial-card cite {
    color: var(--secondary-color);
    font-weight: 500;
    font-style: normal;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background-color: var(--light-gray);
}

.contact-form {
    background-color: var(--white);
    padding: 3rem;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-form h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.8rem;
}

.contact-description {
    font-size: 1.2rem;
    color: var(--text-color);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.newsletter-form .form-group {
    margin-bottom: 1.5rem;
}

.newsletter-form input {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid #e1e1e1;
    border-radius: 8px;
    font-size: 1.1rem;
    color: var(--text-color);
    transition: all 0.3s ease;
}

.newsletter-form input:focus {
    border-color: var(--accent-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(245, 0, 87, 0.1);
}

.newsletter-form input::placeholder {
    color: #999;
}

.success-message {
    color: #4CAF50;
    background-color: rgba(76, 175, 80, 0.1);
    border: 1px solid #4CAF50;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.error-message {
    color: #F44336;
    background-color: rgba(244, 67, 54, 0.1);
    border: 1px solid #F44336;
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.submit-button {
    background: var(--gradient-accent);
    color: var(--white);
    padding: 1.2rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-width: 200px;
}

.submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 0, 87, 0.4);
}

.submit-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.submit-button i {
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 4rem 0 2rem;
}

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

.footer-section h3 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-section p {
    margin-bottom: 1rem;
    opacity: 1;
    font-size: 1.1rem;
    line-height: 1.8;
}

.footer-section strong {
    color: var(--accent-color);
    font-weight: 600;
}

.footer-section a {
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
    font-size: 1.1rem;
}

.footer-section a:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

.footer-section i {
    color: var(--accent-color);
    margin-right: 10px;
    font-size: 1.2rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-bottom p {
    font-size: 1rem;
    opacity: 0.9;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 8rem 0 4rem;
    }
    
    .hero-features {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-feature {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .partners {
        flex-direction: column;
        align-items: center;
        gap: 2rem;
    }
    
    .services-grid,
    .benefits-grid,
    .testimonials-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact-item {
        justify-content: center;
    }
}