:root {
    --bg-color: #000000;
    --accent-blue: #00d4ff;
    --text-main: #ffffff;
    --text-dim: #888888;
    --card-bg: rgba(10, 10, 10, 0.9);
    --border-dim: #222222;
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-primary);
    margin: 0;
    overflow-x: hidden;
    line-height: 1.6;
}

/* STAR BACKGROUND */
.stars-overlay {
    position: fixed;
    top: -10%;
    left: -10%;
    width: 120%;
    height: 120%;
    z-index: -1;
    pointer-events: none;
    background: 
        radial-gradient(1px 1px at 20px 30px, #eee, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 40px 70px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 50px 160px, #ddd, rgba(0,0,0,0)),
        radial-gradient(1.5px 1.5px at 90px 40px, #fff, rgba(0,0,0,0)),
        radial-gradient(1px 1px at 130px 80px, #fff, rgba(0,0,0,0)),
        radial-gradient(2px 2px at 160px 120px, #ddd, rgba(0,0,0,0));
    background-repeat: repeat;
    background-size: 300px 300px;
    opacity: 0.4;
    transition: transform 0.1s ease-out;
}

/* NAVBAR STYLES */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-dim);
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
    font-weight: 800;
    letter-spacing: 4px;
    text-transform: uppercase;
}

.logo-img {
    height: 32px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-btn {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    cursor: pointer;
    transition: 0.3s;
    padding-bottom: 5px;
    border-bottom: 2px solid transparent;
}

.nav-btn:hover, .nav-btn.active {
    color: var(--text-main);
    border-bottom-color: var(--accent-blue);
    text-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

/* PAGE WRAPPERS */
.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* HERO TEXT */
.hero {
    height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.main-title {
    font-size: clamp(3rem, 12vw, 8rem);
    letter-spacing: 2.5rem;
    margin-bottom: 3rem;
    font-weight: 900;
    text-transform: uppercase;
    background: linear-gradient(to bottom, #ffffff 30%, #444444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 25px rgba(0, 212, 255, 0.3));
    margin-right: -2.5rem; /* Offsets last letter spacing for perfect center */
}

.scan-btn {
    padding: 1.2rem 3.5rem;
    border: 1px solid var(--accent-blue);
    color: white;
    border-radius: 50px;
    letter-spacing: 6px;
    font-weight: 600;
    text-transform: uppercase;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    background: rgba(0, 212, 255, 0.05);
    backdrop-filter: blur(5px);
}

.scan-btn:hover {
    background: var(--accent-blue);
    color: black;
    box-shadow: 0 0 30px var(--accent-blue);
    transform: scale(1.05);
}

/* TELEMETRY CARDS */
.section-divider {
    text-align: center;
    margin: 6rem 0 3rem;
    color: var(--text-dim);
    letter-spacing: 5px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    opacity: 0.8;
}

.telemetry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    padding: 0 10% 5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-dim);
    padding: 3rem 2rem;
    position: relative;
    transition: 0.4s;
    backdrop-filter: blur(8px);
}

.card:hover {
    border-color: #444;
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
}

.card-header {
    color: var(--accent-blue);
    font-size: 0.65rem;
    letter-spacing: 2px;
    font-weight: 800;
    margin-bottom: 1.5rem;
    opacity: 0.7;
}

.card h2 {
    font-size: 1.6rem;
    letter-spacing: 1px;
    margin-bottom: 1rem;
    font-weight: 700;
}

.card p {
    color: var(--text-dim);
    font-size: 0.95rem;
    line-height: 1.7;
}

.card-corner {
    position: absolute;
    width: 15px;
    height: 15px;
    border: 1px solid #444;
}
.card-corner.tl { top: 10px; left: 10px; border-right: 0; border-bottom: 0; }
.card-corner.br { bottom: 10px; right: 10px; border-left: 0; border-top: 0; }

/* ABOUT US STYLES */
.about-hero {
    padding: 8rem 5% 4rem;
    text-align: center;
}

.about-title {
    font-size: clamp(3rem, 8vw, 6rem);
    letter-spacing: 1.5rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-dim);
    letter-spacing: 6px;
    font-size: 0.8rem;
    font-weight: 600;
}

.protocol-box {
    max-width: 800px;
    margin: 3rem auto 6rem;
    background: var(--card-bg);
    padding: 4rem;
    border: 1px solid var(--border-dim);
    border-radius: 4px;
    text-align: center;
}

.protocol-header {
    font-size: 0.7rem;
    color: var(--accent-blue);
    letter-spacing: 4px;
    font-weight: 800;
    margin-bottom: 2rem;
}

.protocol-box p {
    font-size: 1.1rem;
    color: var(--text-main);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.repo-link {
    display: inline-block;
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 700;
    letter-spacing: 2px;
    border: 1px solid var(--accent-blue);
    padding: 0.8rem 2rem;
    border-radius: 4px;
    transition: 0.3s;
}

.repo-link:hover {
    background: var(--accent-blue);
    color: black;
    box-shadow: 0 0 15px var(--accent-blue);
}

/* TEAM STYLES */
.team-section {
    padding-bottom: 10rem;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 0 10%;
    max-width: 1200px;
    margin: 0 auto;
}

.team-card {
    text-align: center;
}

.img-container {
    width: 100%;
    aspect-ratio: 1/1;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border-dim);
    margin-bottom: 1.5rem;
    background: #0a0a0a;
}

.team-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1) contrast(1.2);
    transition: 0.5s ease;
}

.team-card:hover .team-img {
    filter: grayscale(0) contrast(1);
    transform: scale(1.05);
}

.team-card h3 {
    font-size: 0.9rem;
    letter-spacing: 3px;
    font-weight: 700;
    color: var(--text-main);
}

/* FOOTER */
.footer {
    padding: 6rem 5%;
    text-align: center;
    border-top: 1px solid var(--border-dim);
    background: linear-gradient(to top, rgba(0, 212, 255, 0.05), transparent);
}

.footer-logo {
    font-size: 2rem;
    letter-spacing: 1.5rem;
    margin-bottom: 1rem;
    margin-right: -1.5rem;
}

.footer-tagline {
    font-size: 0.65rem;
    color: var(--text-dim);
    letter-spacing: 4px;
    font-weight: 700;
    margin-bottom: 2rem;
}

.copyright {
    font-size: 0.6rem;
    color: #444;
    letter-spacing: 2px;
}