:root {
    /* Light Theme Colors */
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --primary-color: #00d8b4;
    --secondary-color: #3cb1ff;
    --link-color: #007bff;
    --accent-yellow: #ffc857;
    --accent-red: #ff5c5c;
    --header-bg: rgba(255, 255, 255, 0.9);
    --card-bg: #ffffff;
    --border-color: #dee2e6;
    --nav-text: #495057;
}

body.dark-theme {
    /* Dark Theme Colors */
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --primary-color: #00d8b4;
    --secondary-color: #3cb1ff;
    --link-color: #8ab4f8;
    --header-bg: rgba(18, 18, 18, 0.9);
    --card-bg: #1e1e1e;
    --border-color: #333333;
    --nav-text: #adb5bd;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.2s, opacity 0.2s;
}

a:hover {
    text-decoration: underline;
    opacity: 0.8;
}

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

/* Header & Nav */
header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.1rem 0;
}

.logo img {
    height: 60px;
}

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

.nav-links a {
    text-decoration: none;
    color: var(--nav-text);
    font-weight: 500;
    transition: color 0.2s;
}

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

#theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    padding: 5px 10px;
    border-radius: 5px;
    color: var(--text-color);
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

#theme-toggle:hover {
    background-color: var(--border-color);
}

/* Sections */
section {
    padding: 4rem 0;
}

.hero {
    text-align: center;
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--card-bg) 100%);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    max-width: 800px;
    margin: 0 auto 2rem;
    color: var(--nav-text);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #121212;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 216, 180, 0.4);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: #ffffff;
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(60, 177, 255, 0.4);
}

/* Grid Layouts */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: 12px;
    transition: transform 0.3s;
}

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

.card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

/* Content styles */
.content-section {
    max-width: 800px;
    margin: 0 auto;
}

.content-section h2 {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
    padding-bottom: 5px;
}

.content-section p {
    margin-bottom: 1rem;
}

.content-section ul {
    margin-bottom: 1rem;
    padding-left: 20px;
}

/* Footer */
footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--nav-text);
    font-size: 0.9rem;
}

/* Team section */
.team-section {
    text-align: center;
}

.team-section h1 {
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.team-member {
    background-color: transparent;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.team-member:hover {
    transform: translateY(-10px);
}

.team-member img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    margin-bottom: 1.5rem;
    border: 4px solid var(--primary-color);
    object-fit: cover;
    background-color: var(--bg-color);
    transition: transform 0.3s ease;
}

.team-member:hover img {
    transform: scale(1.05);
}

.team-member h3 {
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.team-member p {
    color: var(--nav-text);
    font-size: 0.95rem;
}

.team-member p strong {
    color: var(--primary-color);
    display: block;
    margin-bottom: 0.5rem;
}

.contact-section {
    border-top: 1px solid var(--border-color);
}

.contact-section h2 {
    margin-top: 2rem;
}

.footer-info-section {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0;
}

.footer-info-grid {
    display: grid;
    grid-template-columns: 6fr 4fr;
    gap: 2rem;
    align-items: start;
}

.footer-info-grid h2 {
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--primary-color);
    display: inline-block;
    padding-bottom: 5px;
}

.facebook-plugin {
    text-align: left;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    background: none;
    border: none;
    padding: 5px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: background-color 0.3s;
}

/* Responsive */
@media (max-width: 992px) {
    .footer-info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--header-bg);
        border-bottom: 1px solid var(--border-color);
        padding: 1rem 0;
        text-align: center;
        gap: 1rem;
        box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    }

    .nav-links.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2.5rem;
    }
}