/* css/style.css */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Roboto+Mono:wght@400;700&display=swap');

:root {
    --bg-dark: #0a0a0f;
    --bg-darker: #050508;
    --primary-color: #00d2ff;
    --secondary-color: #3a7bd5;
    --accent-color: #f72585;
    --text-main: #f0f0f0;
    --text-muted: #a0a0a5;
    --glass-bg: rgba(20, 20, 25, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 800;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

/* Glassmorphism Header */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: 1px;
}

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

.nav-links li a {
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
}

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

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

.dropdown {
    position: relative;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    min-width: 200px;
    padding: 1rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    flex-direction: column;
}

.dropdown:hover .dropdown-content {
    display: flex;
}

.dropdown-content li a {
    padding: 0.75rem 1.5rem;
    display: block;
    font-size: 0.85rem;
}

.dropdown-content li a::after {
    display: none;
}

.dropdown-content li a:hover {
    background: rgba(255,255,255,0.05);
    color: var(--primary-color);
}

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

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    z-index: -2;
    transform: translateX(-50%) translateY(-50%);
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(5,5,8,0.3) 0%, rgba(5,5,8,0.8) 100%);
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    padding: 0 2rem;
    z-index: 1;
    animation: fadeIn 1.5s ease-out forwards;
}

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

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 0 5px 15px rgba(0,0,0,0.5);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 30px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    box-shadow: 0 10px 20px rgba(0, 210, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(0, 210, 255, 0.4);
}

.btn-outline {
    background: transparent;
    color: #fff;
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: #0a0a0f;
}

/* Sections */
.section {
    padding: 6rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

/* Cards / Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 2.5rem 2rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
    border-color: rgba(255,255,255,0.2);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.card p {
    color: var(--text-muted);
}

/* Partners Section */
.partners {
    background: var(--bg-darker);
    padding: 4rem 5%;
    text-align: center;
}

.partners h2 {
    font-size: 1.5rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.partner-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4rem;
    flex-wrap: wrap;
}

.partner-logos img {
    height: 60px;
    filter: grayscale(100%) opacity(0.7);
    transition: all 0.3s ease;
}

.partner-logos img:hover {
    filter: grayscale(0%) opacity(1);
    transform: scale(1.1);
}

/* Colorful NASA override */
.partner-logos img.nasa {
    filter: grayscale(0%) opacity(1);
}

/* Footer */
footer {
    background: #000;
    padding: 4rem 5% 2rem;
    border-top: 1px solid var(--glass-border);
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    color: #fff;
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 0.75rem;
}

.footer-col ul li a {
    color: var(--text-muted);
}

.footer-col ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Certifications Badge */
.cert-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    padding: 10px 20px;
    border-radius: 50px;
    margin-top: 20px;
    backdrop-filter: blur(5px);
}
.cert-badge span {
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1px;
    background: linear-gradient(90deg, #ffd700, #ffaa00);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Interior Pages Header */
.page-header {
    padding: 10rem 5% 4rem;
    background: linear-gradient(to right, #0a0a0f, #1a1a24);
    text-align: center;
    border-bottom: 1px solid var(--glass-border);
}

.page-header h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

/* Media Queries */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Add mobile menu logic in JS if needed */
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
}