/* CSS Variables */
:root {
    /* Neutral Color Palette */
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --accent-hover: #2980b9;
    --background-color: #f8f9fa;
    --surface-color: #ffffff;
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --text-light: #ffffff;
    --border-color: #e0e6ed;
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-heavy: 0 8px 30px rgba(0, 0, 0, 0.2);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.7));
    
    /* Neumorphism Colors */
    --neuro-light: #ffffff;
    --neuro-shadow-light: rgba(255, 255, 255, 0.7);
    --neuro-shadow-dark: rgba(0, 0, 0, 0.1);
    --neuro-inset-light: inset 2px 2px 5px rgba(0, 0, 0, 0.1);
    --neuro-inset-dark: inset -2px -2px 5px rgba(255, 255, 255, 0.7);
    
    /* Typography */
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Nunito', sans-serif;
    --font-size-h1: 3.5rem;
    --font-size-h2: 2.5rem;
    --font-size-h3: 2rem;
    --font-size-h4: 1.5rem;
    --font-size-body: 1rem;
    --font-size-small: 0.875rem;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Border Radius */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

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

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }
h4 { font-size: var(--font-size-h4); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    line-height: 1.8;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition-medium);
}

a:hover {
    color: var(--accent-hover);
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius-md);
    font-family: var(--font-body);
    font-size: var(--font-size-body);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-medium);
    position: relative;
    overflow: hidden;
    background: var(--neuro-light);
    box-shadow: 5px 5px 15px var(--neuro-shadow-dark), 
                -5px -5px 15px var(--neuro-shadow-light);
    color: var(--text-primary);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 7px 7px 20px var(--neuro-shadow-dark), 
                -7px -7px 20px var(--neuro-shadow-light);
}

.btn:active {
    transform: translateY(0);
    box-shadow: var(--neuro-inset-light), var(--neuro-inset-dark);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: 5px 5px 15px rgba(102, 126, 234, 0.3), 
                -5px -5px 15px rgba(255, 255, 255, 0.7);
}

.btn-primary:hover {
    box-shadow: 7px 7px 20px rgba(102, 126, 234, 0.4), 
                -7px -7px 20px rgba(255, 255, 255, 0.8);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--text-light);
    box-shadow: 5px 5px 15px rgba(240, 147, 251, 0.3), 
                -5px -5px 15px rgba(255, 255, 255, 0.7);
}

.btn-secondary:hover {
    box-shadow: 7px 7px 20px rgba(240, 147, 251, 0.4), 
                -7px -7px 20px rgba(255, 255, 255, 0.8);
}

/* Form Elements */
input, textarea, select {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: var(--font-size-body);
    background: var(--neuro-light);
    box-shadow: var(--neuro-inset-light), var(--neuro-inset-dark);
    transition: var(--transition-medium);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(248, 249, 250, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    transition: var(--transition-medium);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-size: var(--font-size-h3);
    color: var(--primary-color);
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.nav-menu a {
    color: var(--text-primary);
    font-weight: 500;
    transition: var(--transition-medium);
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-color);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: var(--transition-medium);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-medium);
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-overlay);
    z-index: -1;
}

.hero-content {
    text-align: center;
    z-index: 1;
    max-width: 800px;
    padding: var(--spacing-xl);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-heavy);
}

.hero-title {
    font-size: var(--font-size-h1);
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

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

/* Section Styles */
section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

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

.section-header h2 {
    font-size: var(--font-size-h2);
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Cards */
.card {
    background: var(--neuro-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 10px 10px 30px var(--neuro-shadow-dark), 
                -10px -10px 30px var(--neuro-shadow-light);
    transition: var(--transition-medium);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 15px 15px 40px var(--neuro-shadow-dark), 
                -15px -15px 40px var(--neuro-shadow-light);
}

.card-image {
    width: 100%;
    height: 200px;
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-medium);
}

.card:hover .card-image img {
    transform: scale(1.05);
}

.card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card-content h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.card-content p {
    color: var(--text-secondary);
    flex: 1;
}

/* Grid Layouts */
.services-grid, .team-grid, .portfolio-grid, .insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.projects-content, .about-content, .innovation-content, .community-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    margin-top: var(--spacing-xl);
}

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

.project-image {
    width: 100%;
    height: 300px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* About Section */
.about-text h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.about-image {
    width: 100%;
    height: 400px;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
}

.about-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Team Section */
.team-grid .card-image {
    height: 250px;
    border-radius: 50%;
    width: 200px;
    margin: 0 auto var(--spacing-md);
}

/* FAQ Section */
.faq-content {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--neuro-light);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    box-shadow: 5px 5px 15px var(--neuro-shadow-dark), 
                -5px -5px 15px var(--neuro-shadow-light);
    cursor: pointer;
    transition: var(--transition-medium);
}

.faq-item:hover {
    box-shadow: 8px 8px 20px var(--neuro-shadow-dark), 
                -8px -8px 20px var(--neuro-shadow-light);
}

.faq-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Resources Section */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.resource-item {
    background: var(--neuro-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 10px 10px 30px var(--neuro-shadow-dark), 
                -10px -10px 30px var(--neuro-shadow-light);
}

.resource-item h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
}

.resource-item ul {
    list-style: none;
    padding: 0;
}

.resource-item li {
    margin-bottom: var(--spacing-sm);
    padding-left: var(--spacing-md);
    position: relative;
}

.resource-item li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
}

.resource-item a {
    color: var(--text-secondary);
    transition: var(--transition-medium);
}

.resource-item a:hover {
    color: var(--accent-color);
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    margin-top: var(--spacing-xl);
}

.contact-info {
    background: var(--neuro-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 10px 10px 30px var(--neuro-shadow-dark), 
                -10px -10px 30px var(--neuro-shadow-light);
}

.contact-info h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.contact-item {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    background: rgba(52, 152, 219, 0.1);
}

.contact-item strong {
    color: var(--text-primary);
}

.contact-form {
    background: var(--neuro-light);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    box-shadow: 10px 10px 30px var(--neuro-shadow-dark), 
                -10px -10px 30px var(--neuro-shadow-light);
}

.contact-form h3 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

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

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--primary-color);
    color: var(--text-light);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    margin-top: var(--spacing-xxl);
}

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

.footer-section h3, .footer-section h4 {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
}

.footer-section ul {
    list-style: none;
    padding: 0;
}

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

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: var(--transition-medium);
}

.footer-section a:hover {
    color: var(--text-light);
}

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

.social-links a {
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-medium);
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.8);
}

/* Success Page */
.success-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--spacing-xl);
}

.success-content {
    max-width: 600px;
    background: var(--neuro-light);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xxl);
    box-shadow: 20px 20px 60px var(--neuro-shadow-dark), 
                -20px -20px 60px var(--neuro-shadow-light);
}

.success-icon {
    font-size: 4rem;
    color: #27ae60;
    margin-bottom: var(--spacing-lg);
}

/* Privacy and Terms Pages */
.page-content {
    padding-top: 100px;
    padding-bottom: var(--spacing-xxl);
}

.page-content h1 {
    text-align: center;
    margin-bottom: var(--spacing-xxl);
}

.page-content h2 {
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
}

.page-content p {
    margin-bottom: var(--spacing-md);
}

.page-content ul {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-lg);
}

.page-content li {
    margin-bottom: var(--spacing-xs);
}

/* Parallax Effects */
.parallax-element {
    transform: translateZ(0);
    will-change: transform;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

.animate-fadeInUp {
    animation: fadeInUp 0.8s ease-out;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.8s ease-out;
}

.animate-fadeInRight {
    animation: fadeInRight 0.8s ease-out;
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --font-size-h1: 2.5rem;
        --font-size-h2: 2rem;
        --font-size-h3: 1.5rem;
        --spacing-xxl: 2rem;
        --spacing-xl: 1.5rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--neuro-light);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: var(--shadow-medium);
        transform: translateY(-100%);
        transition: var(--transition-medium);
        opacity: 0;
        visibility: hidden;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .projects-content, .about-content, .innovation-content, .community-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .services-grid, .team-grid, .portfolio-grid, .insights-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .resources-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .hero-bg {
        background-attachment: scroll;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-content {
        padding: var(--spacing-lg);
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .contact-info, .contact-form {
        padding: var(--spacing-lg);
    }
    
    .success-content {
        padding: var(--spacing-lg);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-color);
}

::-webkit-scrollbar-thumb {
    background: var(--accent-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-hover);
}