:root {
    --bg-main: #f8f9fa;
    --bg-secondary: #e9ecef;
    --bg-dark: #212529;
    --text-dark: #212529;
    --text-light: #f8f9fa;
    --primary-blue: #1e3a8a;
    --amber-dark: #b45309;
    --amber-light: #d97706;
    --border-color: #dee2e6;
}

@font-face {
    /* Abel
       Author: MADType
       Licence: SIL Open Font License, 1.1
       http://scripts.sil.org/OFL
    */
    font-family: 'Abel';
    font-style: normal;
    font-weight: 400;
    src: url('/font/abel/Abel-Regular.ttf');
}

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

body {
    font-family: 'Abel', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-dark);
    line-height: 1.6;
    letter-spacing: 0.5px;
}

/* HERO HEADER WITH NAVIGATION EXTENSIONS */
.hero-header-parallax {
    height: 100vh;
    min-height: 600px;
    background-image: url('/img/astronaut_tablet_orange.jpg');
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    position: relative;
    display: flex;
    flex-direction: column;
    border-bottom: 4px solid var(--amber-light);
}

/* Dark overlay for perfect text readability */
.hero-header-parallax::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(21, 25, 29, 0.7);
    z-index: 1;
}

/* Overlay navigation structure inside the header */
.nav-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 30px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(217, 119, 6, 0.3);
    position: relative;
    z-index: 2;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--text-light);
    letter-spacing: 1px;
    text-decoration: none;
}

.logo span {
    color: var(--amber-light);
    text-shadow: 0 0 10px rgba(217, 119, 6, 0.6);
}

.tag-oss {
    font-size: 13px;
    font-weight: 600;
    background: rgba(217, 119, 6, 0.15);
    padding: 6px 14px;
    border-radius: 4px;
    color: var(--text-light);
    border: 1px solid var(--amber-light);
    backdrop-filter: blur(5px);
}

/* Top Menu Links Styling */
.nav-menu {
    display: flex;
    gap: 25px;
    align-items: center;
    list-style: none;
}

.nav-link {
    color: #ced4da;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color 0.2s ease;
}

.a {
    color: #ced4da;
    text-decoration: none;
    font-size: 18px;
    font-weight: 600;
    letter-spacing: 1px;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: var(--amber-light);
}

/* Hero Content layered inside the background */
.hero-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    max-width: 850px;
    margin: 0 auto;
    padding: 0 20px 60px 20px;
    position: relative;
    z-index: 2;
}

h1 {
    font-size: 54px;
    line-height: 1.2;
    color: var(--text-light);
    margin-bottom: 24px;
    text-shadow: 0 2px 12px rgba(0,0,0,0.7);
    letter-spacing: 1px;
}

h1 mark {
    background: none;
    color: var(--amber-light);
}

.hero-content p {
    font-size: 22px;
    color: #e9ecef;
    margin-bottom: 35px;
    text-shadow: 0 1px 5px rgba(0,0,0,0.6);
}

/* DYNAMIC VIBRANT ORANGE BUTTONS */
.btn {
    display: inline-block;
    background-color: var(--amber-light);
    color: var(--text-light);
    text-decoration: none;
    padding: 16px 36px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 19px;
    letter-spacing: 1px;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    box-shadow: 0 4px 20px rgba(217, 119, 6, 0.4);
    text-transform: uppercase;
}

.btn:hover {
    background-color: var(--amber-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(180, 83, 9, 0.6);
    cursor: pointer;
}

main {
    padding-bottom: 30px;
}

.content-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 60px 20px;
}

.section-title {
    font-size: 34px;
    color: var(--primary-blue);
    margin: 40px 0 35px 0;
    text-align: center;
    font-weight: 700;
    letter-spacing: 1px;
    position: relative;
}

.section-title::after {
    content: "";
    display: block;
    width: 50px;
    height: 3px;
    background-color: var(--amber-light);
    margin: 10px auto 0 auto;
}

/* 3-Column Grid for Foundation USPs */
.grid-usps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.card {
    background-color: var(--bg-secondary);
    border-top: 3px solid var(--amber-light);
    border-left: 1px solid var(--border-color);
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 35px;
    border-radius: 4px;
}

.card h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: var(--primary-blue);
    letter-spacing: 0.5px;
}

.card p {
    color: #495057;
    font-size: 16px;
}

/* Core Features Grid */
.grid-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.feature-detail {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-blue);
    padding: 35px;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.feature-detail h3 {
    font-size: 22px;
    color: var(--primary-blue);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 12px;
    letter-spacing: 0.5px;
}

.feature-detail h3::before {
    content: "▪";
    color: var(--amber-light);
    font-size: 26px;
}

/* Standard styling elements that can be used in Blog articles */
.feature-detail ul, .blog-content ul {
    list-style: none;
    padding-left: 0;
}

.feature-detail li, .blog-content li {
    font-size: 16px;
    color: #495057;
    margin-bottom: 10px;
    padding-left: 18px;
    position: relative;
}

.feature-detail li::before, .blog-content li::before {
    content: "•";
    color: var(--amber-light);
    position: absolute;
    left: 0;
    font-weight: bold;
    font-size: 18px;
    top: -2px;
}

/* Commercial Modules Section (Dark Mode Callout) */
.modules-section {
    background-color: var(--bg-dark);
    color: var(--text-light);
    padding: 50px;
    border-radius: 4px;
    margin: 40px 0;
    border: 1px solid rgba(217, 119, 6, 0.2);
}

.modules-section .section-title {
    color: var(--text-light);
    text-align: left;
    margin-top: 0;
    margin-bottom: 10px;
}

.modules-section .section-title::after {
    margin: 10px 0 0 0;
}

.grid-modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
    margin-top: 35px;
}

.module-box {
    border-left: 4px solid var(--amber-light);
    padding-left: 20px;
}

.module-box h4 {
    font-size: 24px;
    color: var(--text-light);
    margin-bottom: 12px;
    letter-spacing: 0.5px;
}

.module-box ul {
    list-style: none;
    margin-top: 15px;
}

.module-box li {
    font-size: 16px;
    color: #adb5bd;
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.module-box li::before {
    content: "✓";
    color: var(--amber-light);
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* Team Section */
.grid-team {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.team-card {
    background-color: #fff;
    border: 1px solid var(--border-color);
    padding: 40px 30px;
    border-radius: 4px;
    text-align: center;
    transition: border-color 0.2s ease;
}

.team-card:hover {
    border-color: var(--amber-light);
}

.team-avatar-placeholder {
    width: 80px;
    height: 80px;
    background-color: var(--bg-secondary);
    border: 2px solid var(--amber-light);
    border-radius: 50%;
    margin: 0 auto 20px auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--amber-dark);
    font-size: 24px;
}

.team-card h3 {
    font-size: 24px;
    color: var(--primary-blue);
    margin-bottom: 5px;
    letter-spacing: 0.5px;
}

.team-role {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--amber-dark);
    letter-spacing: 1.5px;
    margin-bottom: 15px;
}

.team-card p {
    font-size: 16px;
    color: #495057;
}

/* Contact & Trust Section */
.contact-section {
    text-align: center;
    max-width: 650px;
    margin: 40px auto 0 auto;
    background-color: var(--bg-secondary);
    border: 2px solid var(--amber-light);
    padding: 50px;
    border-radius: 4px;
}

.contact-section h2 {
    color: var(--primary-blue);
    margin-bottom: 15px;
    font-size: 28px;
    letter-spacing: 0.5px;
}

.contact-section p {
    color: #495057;
    margin-bottom: 30px;
    font-size: 18px;
}

.security-note {
    margin-top: 25px;
    font-size: 13px;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

/* CSS Parallax Containers for Body Separators */
.parallax-container {
    height: 350px;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    border-top: 3px solid var(--amber-light);
    border-bottom: 3px solid var(--amber-light);
}

.parallax-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(21, 25, 29, 0.65);
}

.parallax-text {
    position: relative;
    color: var(--text-light);
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    text-align: center;
    padding: 0 20px;
    border-left: 4px solid var(--amber-light);
    border-right: 4px solid var(--amber-light);
}

/* Footer Navigation Line */
footer {
    text-align: center;
    padding: 20px 20px 40px 20px;
    font-size: 14px;
    color: #6c757d;
    border-top: 1px solid var(--border-color);
    margin-top: 60px;
}

footer a {
    color: #495057;
    text-decoration: none;
    margin: 0 10px;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--amber-light);
}

/* Separator Images */
        .img-control-2 {
            background-image: url('/img/OPENVOCS.jpeg');
        }

        .img-network-3 {
            background-image: url('/img/openvocs_spaceops.jpeg');
        }

@media (max-width: 600px) {
    h1 { font-size: 36px; }
    .nav-container { flex-direction: column; gap: 15px; text-align: center; }
    .logo-group { flex-direction: column; gap: 5px; }
    .grid-modules, .grid-features, .grid-team { grid-template-columns: 1fr; }
    .modules-section { padding: 30px; }
    .hero-header-parallax, .parallax-container { background-attachment: scroll; }
    .hero-header-parallax { height: auto; padding-bottom: 60px; }
    .parallax-container { height: 200px; }
}