/* CSS Variables - Complementary Color Scheme */
:root {
    /* Primary Colors */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #8b8cf8;
    --primary-lighter: #e0e7ff;
    
    /* Secondary Colors */
    --secondary-color: #f59e0b;
    --secondary-dark: #d97706;
    --secondary-light: #fbbf24;
    --secondary-lighter: #fef3c7;
    
    /* Accent Colors */
    --accent-color: #ec4899;
    --accent-dark: #db2777;
    --accent-light: #f472b6;
    
    /* Neutral Colors */
    --dark-color: #1f2937;
    --text-dark: #111827;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --white: #ffffff;
    --light-gray: #f9fafb;
    --medium-gray: #e5e7eb;
    --border-color: #d1d5db;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-dark));
    --gradient-dark: linear-gradient(135deg, var(--dark-color), #374151);
    --gradient-overlay: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.3));
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-3d: 0 15px 35px rgba(0, 0, 0, 0.1), 0 5px 15px rgba(0, 0, 0, 0.07);
    
    /* Transitions */
    --transition-fast: 0.2s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    --transition-morph: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Fonts */
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Work Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    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-sm);
    color: var(--text-dark);
}

.title {
    font-family: var(--font-heading) !important;
}

.subtitle {
    font-family: var(--font-body) !important;
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Global Button Styles */
.btn, .button, button, input[type="submit"] {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition-morph);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transform: translateY(0);
}

.btn:hover, .button:hover, button:hover, input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.btn:active, .button:active, button:active, input[type="submit"]:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

/* Morph Button Animation */
.morph-button {
    background: var(--gradient-primary);
    color: var(--white) !important;
    position: relative;
    z-index: 1;
}

.morph-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-secondary);
    opacity: 0;
    transition: var(--transition-morph);
    z-index: -1;
    border-radius: inherit;
}

.morph-button:hover::before {
    opacity: 1;
}

.morph-button:hover {
    color: var(--white) !important;
}

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

.section {
    padding: var(--spacing-2xl) 0;
}

.section.has-background-light {
    background-color: var(--light-gray);
}

/* Parallax Effect */
.parallax-section {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
}

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

.parallax-section > * {
    position: relative;
    z-index: 2;
}

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-normal);
    z-index: 1000;
}

.navbar.is-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

.navbar-brand .navbar-item {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--primary-color) !important;
}

.navbar-item {
    font-family: var(--font-body);
    font-weight: 500;
    transition: var(--transition-fast);
}

.navbar-item:hover {
    color: var(--primary-color) !important;
    background-color: transparent !important;
}

.navbar-burger {
    height: 3.25rem;
    width: 3.25rem;
}

.navbar-burger span {
    height: 2px;
    width: 18px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero .title {
    color: var(--white) !important;
    font-size: 3.5rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
    margin-bottom: var(--spacing-md);
}

.hero .subtitle {
    color: var(--white) !important;
    font-size: 1.25rem;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
    .hero .title {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.1rem;
    }
}

/* Title Underline */
.title-underline {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-sm) auto var(--spacing-lg);
    border-radius: var(--radius-sm);
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    border: none;
    box-shadow: var(--shadow-md);
    transition: var(--transition-morph);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    height: 100%;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.card-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

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

.card-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
}

.image-container {
    width: 100%;
    height: 250px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    margin: 0 auto;
}

/* Team Cards */
.team-card .card-image {
    height: 300px;
}

.team-card .card-image img {
    border-radius: 50%;
    width: 200px;
    height: 200px;
    margin: var(--spacing-lg) auto;
    object-fit: cover;
}

/* Project Cards */
.project-card {
    height: 100%;
}

.project-card .tags {
    margin-top: var(--spacing-sm);
}

.tag {
    border-radius: var(--radius-md);
    font-weight: 500;
}

/* Process Steps */
.process-step {
    text-align: center;
    padding: var(--spacing-lg);
    position: relative;
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-lg);
    font-family: var(--font-heading);
}

/* Progress Bars */
.progress-container {
    margin-top: var(--spacing-lg);
}

.progress-item {
    margin-bottom: var(--spacing-md);
}

.progress-item label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.progress {
    height: 12px;
    border-radius: var(--radius-md);
    background-color: var(--medium-gray);
}

.progress::-webkit-progress-bar {
    background-color: var(--medium-gray);
    border-radius: var(--radius-md);
}

.progress::-webkit-progress-value {
    border-radius: var(--radius-md);
    transition: var(--transition-slow);
}

/* Event Cards */
.event-card {
    padding: var(--spacing-lg);
    border-left: 4px solid var(--primary-color);
}

.event-date {
    background: var(--gradient-primary);
    color: var(--white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    text-align: center;
    width: 80px;
    margin-right: var(--spacing-md);
    float: left;
}

.event-date .day {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.event-date .month {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
}

.event-info {
    margin-left: 100px;
}

.event-meta {
    margin-top: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Research Stats */
.research-stats {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-lg);
}

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

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-heading);
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    margin-top: var(--spacing-xs);
}

/* Sustainability Metrics */
.sustainability-metrics {
    display: flex;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.metric-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.metric-icon {
    font-size: 1.5rem;
}

.metric-text {
    font-weight: 500;
}

/* News Cards */
.news-card .card-image {
    height: 200px;
}

.news-card time {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: var(--spacing-xs);
    display: block;
}

/* Resource Cards */
.resource-card {
    border-left: 4px solid var(--secondary-color);
    transition: var(--transition-normal);
}

.resource-card:hover {
    border-left-color: var(--primary-color);
}

.resource-card .title a {
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.resource-card .title a:hover {
    color: var(--primary-color);
    text-decoration: none;
}

/* Testimonial Cards */
.testimonial-card {
    border-top: 4px solid var(--accent-color);
    height: 100%;
}

.testimonial-card .media {
    margin-top: var(--spacing-md);
}

.testimonial-card .media .image {
    border-radius: 50%;
    overflow: hidden;
}

/* Contact Form */
.contact-form-card {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg);
}

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

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

.contact-form .input,
.contact-form .textarea,
.contact-form .select select {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-body);
    transition: var(--transition-fast);
    background-color: var(--white);
}

.contact-form .input:focus,
.contact-form .textarea:focus,
.contact-form .select select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    outline: none;
}

.contact-info {
    padding: var(--spacing-lg);
}

.info-item {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--light-gray);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
}

.info-item:last-child {
    margin-bottom: 0;
}

/* Footer */
.footer {
    background: var(--dark-color) !important;
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer .title {
    color: var(--white) !important;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--white);
    text-decoration: none;
}

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

.social-links a {
    color: var(--text-muted);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    border: 1px solid transparent;
}

.social-links a:hover {
    color: var(--white);
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    text-decoration: none;
    transform: translateY(-2px);
}

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

.success-content {
    max-width: 600px;
    padding: var(--spacing-2xl);
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-2xl);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.success-content .title {
    color: var(--white) !important;
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.success-content .subtitle {
    color: var(--white) !important;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

/* Privacy and Terms Pages */
.content-page {
    padding-top: 100px;
    min-height: 100vh;
}

.content-page .container {
    max-width: 800px;
}

.content-page .content {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    margin: var(--spacing-xl) 0;
}

.content-page h1 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.content-page h2 {
    color: var(--text-dark);
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--primary-lighter);
    padding-bottom: var(--spacing-xs);
}

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

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

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

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
    
    .research-stats,
    .sustainability-metrics {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .navbar-menu {
        background-color: rgba(255, 255, 255, 0.98);
        border-radius: var(--radius-lg);
        margin: var(--spacing-sm);
        box-shadow: var(--shadow-lg);
    }
    
    .hero .title {
        font-size: 2.5rem;
    }
    
    .hero .subtitle {
        font-size: 1.1rem;
    }
    
    .event-date {
        float: none;
        margin: 0 auto var(--spacing-md);
    }
    
    .event-info {
        margin-left: 0;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .success-content {
        margin: var(--spacing-md);
        padding: var(--spacing-xl);
    }
    
    .success-content .title {
        font-size: 2rem;
    }
    
    .content-page {
        padding-top: 80px;
    }
    
    .content-page .content {
        padding: var(--spacing-lg);
        margin: var(--spacing-md) 0;
    }
}

@media (max-width: 480px) {
    .step-number {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .button {
        width: 100%;
    }
}

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

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

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* AOS Animation Overrides */
[data-aos="fade-up"] {
    animation: fadeInUp 0.8s ease-out;
}

[data-aos="fade-left"] {
    animation: slideInLeft 0.8s ease-out;
}

[data-aos="fade-right"] {
    animation: slideInRight 0.8s ease-out;
}

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

.has-text-left {
    text-align: left;
}

.has-text-right {
    text-align: right;
}

.is-hidden-mobile {
    display: block;
}

@media (max-width: 768px) {
    .is-hidden-mobile {
        display: none;
    }
}

.is-hidden-desktop {
    display: none;
}

@media (max-width: 768px) {
    .is-hidden-desktop {
        display: block;
    }
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: var(--radius-md);
}

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

/* Loading Animation */
@keyframes loading {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.loading {
    animation: loading 1s linear infinite;
}

/* Focus States for Accessibility */
.btn:focus,
.button:focus,
button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print Styles */
@media print {
    .navbar,
    .footer,
    .btn,
    .button {
        display: none;
    }
    
    .section {
        padding: var(--spacing-sm) 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid var(--border-color);
    }
}