:root {
    --primary-color: #0b192f;
    --secondary-color: #64ffda;
    --text-color: #8892b0;
    --light-text-color: #ccd6f6;
    --background-color: #0b192f;
    --card-background-color: #112240;
    --hover-color: rgba(100, 255, 218, 0.1);
}

body {
    font-family: 'Calibre', 'San Francisco', 'SF Pro Text', -apple-system, system-ui, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: var(--background-color);
    color: var(--text-color);
}

header {
    background-color: rgba(11, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    margin: 0 auto;
    padding: 0 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--secondary-color);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--light-text-color);
    font-weight: bold;
    transition: color 0.3s;
}

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

.hero {
    position: relative;
    color: #fff;
    text-align: center;
    padding: 12rem 2rem;
    margin-top: 60px;
    overflow: hidden;
}

#particles-js {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: var(--light-text-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    background-color: transparent;
    color: var(--secondary-color);
    padding: 0.8rem 1.5rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    border: 1px solid var(--secondary-color);
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: var(--hover-color);
}

section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--light-text-color);
}

.feature-cards, .team-members {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    justify-content: center;
}

.card, .team-member {
    background-color: var(--card-background-color);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid transparent;
    box-shadow: 0 10px 30px -15px rgba(2,12,27,0.7);
    text-align: left;
    transition: transform 0.3s, border-color 0.3s;
}

.card:hover, .team-member:hover {
    transform: translateY(-10px);
    border-color: var(--secondary-color);
}

.card-icon {
    color: var(--secondary-color);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.card h3, .team-member h4 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--light-text-color);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline-item {
    padding: 1.5rem 2rem;
    position: relative;
    background-color: var(--card-background-color);
    margin-bottom: 2rem;
    border-radius: 10px;
    border-left: 3px solid var(--secondary-color);
}

.faq-item {
    background-color: var(--card-background-color);
    margin-bottom: 1rem;
    border-radius: 5px;
    text-align: left;
}

.faq-question {
    padding: 1rem;
    cursor: pointer;
    color: var(--light-text-color);
    font-weight: bold;
}

.faq-answer {
    padding: 0 1rem 1rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

#contact {
    background-color: transparent;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

#contact-form input,
#contact-form textarea {
    padding: 0.8rem;
    border: 1px solid var(--text-color);
    border-radius: 5px;
    background-color: var(--card-background-color);
    color: var(--light-text-color);
}

#contact-form button {
    background-color: transparent;
    color: var(--secondary-color);
    padding: 0.8rem;
    border: 1px solid var(--secondary-color);
    border-radius: 5px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

#contact-form button:hover {
    background-color: var(--hover-color);
}

footer {
    background-color: var(--primary-color);
    color: var(--text-color);
    text-align: center;
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.social-links a {
    color: var(--text-color);
    text-decoration: none;
    margin-left: 1rem;
    transition: color 0.3s;
}

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