/* ===================================
   Global Styles & Reset
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #2ecc71;
    --primary-dark: #27ae60;
    --primary-light: #3ede81;
    --secondary-color: #1a1a1a;
    --accent-color: #3498db;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --background-light: #f8f9fa;
    --background-white: #ffffff;
    --border-color: #e0e0e0;
    --success-color: #2ecc71;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-medium);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo i {
    font-size: 1.6rem;
}

.logo:hover {
    color: var(--primary-dark);
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

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

.nav-link.contact-btn {
    background: var(--primary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
}

.nav-link.contact-btn::after {
    display: none;
}

.nav-link.contact-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 50%, #e3f2fd 100%);
    z-index: -1;
}

.hero-background::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(46, 204, 113, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-background::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(52, 152, 219, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    50% {
        transform: translate(30px, 30px) scale(1.1);
    }
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    animation: fadeInUp 1s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-md);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
}

.hero-badge i {
    font-size: 1.1rem;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg) auto;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: var(--transition-medium);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(46, 204, 113, 0.3);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(46, 204, 113, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.95rem;
    color: var(--text-light);
    font-weight: 500;
}

.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: white;
    color: var(--primary-color);
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ===================================
   Section Styles
   =================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-xl);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ===================================
   About Section
   =================================== */
.about {
    background: var(--background-white);
}

.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.about-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border: 2px solid transparent;
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.about-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.about-icon i {
    font-size: 2rem;
    color: white;
}

.about-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.about-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* ===================================
   Challenges Section
   =================================== */
.challenges {
    background: var(--background-light);
}

.challenges-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.challenge-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    border-left: 4px solid var(--danger-color);
}

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

.challenge-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #fee, #fdd);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.challenge-icon i {
    font-size: 1.8rem;
    color: var(--danger-color);
}

.challenge-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.challenge-card p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===================================
   Benefits Section
   =================================== */
.benefits {
    background: var(--background-white);
}

.benefits-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.benefits-visual {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-visual-card {
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    color: white;
    box-shadow: var(--shadow-md);
    transition: var(--transition-medium);
}

.benefit-visual-card:hover {
    transform: scale(1.05);
}

.benefit-visual-card i {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-visual-card h4 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.benefit-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.benefit-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    background: #e8f5e9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.benefit-content h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.benefit-content p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===================================
   Platform Section
   =================================== */
.platform {
    background: var(--background-light);
}

.platform-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.platform-feature {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--spacing-lg);
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
}

.platform-feature:hover {
    box-shadow: var(--shadow-lg);
    transform: translateX(10px);
}

.feature-number {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.feature-content h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-content p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.feature-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-sm);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
}

.feature-list i {
    color: var(--success-color);
}

/* ===================================
   Partners Section
   =================================== */
.partners {
    background: var(--background-white);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.partner-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-medium);
    text-align: center;
    border: 2px solid transparent;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.partner-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-color), #5dade2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md) auto;
}

.partner-icon i {
    font-size: 2.2rem;
    color: white;
}

.partner-card h3 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.partner-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.partner-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-fast);
}

.partner-link:hover {
    gap: var(--spacing-sm);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background: linear-gradient(135deg, #e8f5e9 0%, #f1f8e9 100%);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xl);
}

.contact-info h2 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.contact-info p {
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.contact-detail-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
}

.contact-detail-icon {
    width: 50px;
    height: 50px;
    background: white;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-detail-icon i {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.contact-detail-item h4 {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.contact-detail-item p,
.contact-detail-item a {
    color: var(--text-light);
    text-decoration: none;
}

.contact-detail-item a:hover {
    color: var(--primary-color);
}

.contact-social h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 45px;
    height: 45px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: white;
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.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;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md) 0;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.footer-logo i {
    font-size: 1.5rem;
}

.footer-section p {
    color: #aaa;
    line-height: 1.8;
}

.footer-section h4 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: #aaa;
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: var(--spacing-md);
    text-align: center;
    color: #aaa;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 968px) {
    .benefits-container {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .platform-feature {
        grid-template-columns: 1fr;
    }
    
    .feature-number {
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-lg: 3rem;
        --spacing-xl: 4rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transition: var(--transition-medium);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }
    
    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    
    .btn {
        justify-content: center;
    }
    
    .about-content,
    .challenges-grid,
    .partners-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}