/* Base Styles */
:root {
    /* Primary Colors */
    --primary-color: #6c63ff;
    --secondary-color: #ff6584;
    --accent-color: #43cea2;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    
    /* Playful Gradient Colors */
    --gradient-1: linear-gradient(135deg, #43cea2 0%, #185a9d 100%);
    --gradient-2: linear-gradient(135deg, #ff6584 0%, #ff8e53 100%);
    --gradient-3: linear-gradient(135deg, #6c63ff 0%, #3f5efb 100%);
    
    /* Font Families */
    --heading-font: 'Quicksand', sans-serif;
    --body-font: 'Poppins', sans-serif;
    
    /* Spacing */
    --section-padding: 80px 0;
    --container-padding: 0 15px;
}

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

html {
    scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

section {
    padding: var(--section-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    position: relative;
    display: inline-block;
}

.underline {
    height: 4px;
    width: 70px;
    background: var(--primary-color);
    margin: 0 auto;
    margin-top: 10px;
    border-radius: 2px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: var(--heading-font);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: #5a52e0;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(108, 99, 255, 0.2);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
    opacity: 0;
}

.btn-secondary:hover {
    background: #ff4f73;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 101, 132, 0.2);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    padding: 15px 0;
    transition: all 0.3s ease;
}

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

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    color: var(--dark-color);
    font-weight: 600;
    position: relative;
}

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

.nav-links a:hover {
    color: var(--primary-color);
}

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    transition: all 0.3s ease;
    background-color: var(--dark-color);
}

/* Hero Section */
.hero {
    padding-top: 150px;
    padding-bottom: 100px;
    background-color: #f9f9ff;
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    z-index: 2;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
    color: var(--primary-color);
}

.hero-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

.hero-image {
    flex: 1;
    position: relative;
    height: 400px;
}

.shape {
    position: absolute;
    border-radius: 50%;
}

.shape-1 {
    width: 150px;
    height: 150px;
    background: var(--gradient-1);
    top: 50px;
    right: 100px;
    animation: float 6s ease-in-out infinite;
}

.shape-2 {
    width: 80px;
    height: 80px;
    background: var(--gradient-2);
    top: 200px;
    right: 50px;
    animation: float 8s ease-in-out infinite;
}

.shape-3 {
    width: 120px;
    height: 120px;
    background: var(--gradient-3);
    bottom: 50px;
    right: 150px;
    animation: float 7s ease-in-out infinite;
}

.shape-4 {
    width: 60px;
    height: 60px;
    background: var(--accent-color);
    bottom: 100px;
    right: 80px;
    animation: float 5s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
    100% {
        transform: translateY(0);
    }
}

/* Mission Section */
.mission {
    background-color: white;
}

.mission-content {
    display: flex;
    flex-direction: column;
    gap: 50px;
}

.mission-text {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.mission-text p {
    font-size: 1.1rem;
}

.mission-cards {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.card-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 2rem;
    color: white;
}

.card:nth-child(1) .card-icon {
    background: var(--gradient-1);
}

.card:nth-child(2) .card-icon {
    background: var(--gradient-2);
}

.card:nth-child(3) .card-icon {
    background: var(--gradient-3);
}

.card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* Projects Section */
.projects {
    background-color: #f9f9ff;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
}

.project-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.project-image {
    height: 250px;
    position: relative;
    overflow: hidden;
}

.overlay-wiki-type {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/WikiType_logo.png');
    background-color: rgba(255, 255, 255, 0.8);
    background-size: cover;
    background-repeat: no-repeat;
    background-position: top;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: all 0.3s ease;
}
.overlay-aos {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('img/AllianceOfScience_Title_Image.png');
    background-size: contain;
    background-position: top;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: all 0.3s ease;
}

.project-image:hover .overlay,
.project-image:hover .overlay-wiki-type,
.project-image:hover .overlay-aos {
    opacity: 0.8;
}

.project-image:hover .btn-secondary{
    opacity: 1;
}

.project-info {
    padding: 30px;
}

.project-info h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.project-tags span {
    background: #f0f0ff;
    color: var(--primary-color);
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Contact Section */
.contact {
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 50px;
}

.contact-info h3, .contact-form h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-details {
    margin: 30px 0;
}

.contact-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.contact-item i {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 1.2rem;
}

.contact-item p {
    margin-bottom: 0;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: #f0f0ff;
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #e1e1e1;
    border-radius: 5px;
    font-family: var(--body-font);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.form-group textarea {
    height: 150px;
    resize: vertical;
}

/* Footer */
.footer {
    background-color: #2d2b55;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.footer-logo h2 {
    color: white;
    font-size: 1.8rem;
    margin-bottom: 10px;
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 0;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .hero-content h1 {
        font-size: 3rem;
    }
    
    .hero-content h2 {
        font-size: 1.8rem;
    }
    
    .hero .container {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-content {
        margin-bottom: 50px;
    }
    
    .mission-cards {
        flex-direction: column;
        align-items: center;
    }
    
    .card {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 20px 0;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }
    
    .footer-links ul {
        justify-content: center;
    }
}

@media (max-width: 576px) {
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-content h2 {
        font-size: 1.3rem;
    }
    
    .btn {
        padding: 10px 25px;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}