/* Universal Styles for Space Dust Industries Inc. */
:root {
    --navy: #1a1a2e;
    --navy-light: #233554;
    --navy-medium: #16213e;
    --navy-dark: #0f3460;
    --gold: #c9b037;
    --red: #e94560;
    --border: #53354a;
    --text: #e0e0e0;
    --text-dim: #b0b0b0;
    --shadow-gold: rgba(201, 176, 55, 0.1);
    --shadow-gold-hover: rgba(201, 176, 55, 0.3);
    --shadow-red: rgba(233, 69, 96, 0.1);
}

/* Reset and Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--navy);
    color: var(--text);
    line-height: 1.6;
    font-size: 16px;
}

/* Typography */
h1 {
    color: var(--gold);
    font-size: 2.5em;
    margin: 0 0 15px 0;
}

h2 {
    color: var(--gold);
    font-size: 2em;
    margin: 30px 0 20px 0;
}

h3 {
    color: var(--red);
    font-size: 1.5em;
    margin: 20px 0 15px 0;
}

h4 {
    color: var(--gold);
    font-size: 1.2em;
    margin: 15px 0 10px 0;
}

p {
    margin-bottom: 15px;
    color: var(--text);
}

a {
    color: var(--gold);
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: var(--red);
}

/* Unified Header */
.main-header {
    background: linear-gradient(135deg, var(--navy-medium) 0%, var(--navy-dark) 100%);
    color: #fff;
    padding: 40px 0;
    text-align: center;
    border-bottom: 3px solid var(--gold);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo-section h1 {
    margin: 0 0 10px 0;
    font-size: 2.5em;
}

.logo-section h1 a {
    color: var(--gold);
    text-decoration: none;
}

.tagline {
    font-size: 1.2em;
    opacity: 0.9;
    margin: 0;
}

.sub-tagline {
    font-size: 1em;
    opacity: 0.8;
    margin-top: 5px;
}

/* Unified Navigation */
.main-nav {
    background-color: var(--navy-dark);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.nav-links {
    display: flex;
    gap: 25px;
    flex-wrap: wrap;
    align-items: center;
}

.main-nav a {
    color: var(--gold);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    padding: 5px 10px;
    border-radius: 5px;
}

.main-nav a:hover {
    color: var(--red);
    background: rgba(233, 69, 96, 0.1);
}

.main-nav a.active {
    color: var(--red);
    background: rgba(233, 69, 96, 0.2);
}

/* Universal Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Hero Section */
.hero-section {
    position: relative;
    height: 500px;
    overflow: hidden;
    margin-bottom: 40px;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(26,26,46,0.9) 40%, transparent);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 40px;
}

.hero-content {
    max-width: 800px;
}

.hero-overlay h2 {
    color: white;
    font-size: 2.5em;
    margin: 0 0 20px 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

.hero-overlay p {
    color: white;
    font-size: 1.3em;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}

/* Universal Grid System */
.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 30px;
    margin: 40px 0;
}

/* Full Width Card */
.full-width {
    grid-column: 1 / -1;
}

/* Universal Card Style */
.content-card {
    background: linear-gradient(135deg, var(--navy-light) 0%, var(--navy) 100%);
    border: 2px solid var(--border);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px var(--shadow-gold);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--shadow-gold-hover);
    border-color: var(--gold);
}

.content-card.ai-enhanced {
    background: linear-gradient(135deg, var(--shadow-red) 0%, var(--navy) 100%);
    border-color: rgba(233, 69, 96, 0.3);
}

.content-card.ai-enhanced:hover {
    border-color: var(--red);
    box-shadow: 0 8px 30px rgba(233, 69, 96, 0.3);
}

.card-image {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.card-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-content h2,
.card-content h3 {
    margin-top: 0;
}

.card-content p {
    flex: 1;
}

/* Tech Specs */
.tech-specs {
    background: rgba(201, 176, 55, 0.1);
    border-left: 3px solid var(--gold);
    padding: 20px;
    margin: 20px 0;
    border-radius: 5px;
}

.tech-specs h4 {
    margin-top: 0;
}

.tech-specs ul {
    list-style: none;
    padding: 0;
}

.tech-specs li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
}

.tech-specs li:before {
    content: "▸";
    color: var(--red);
    position: absolute;
    left: 0;
}

/* Learn More Link */
.learn-more {
    color: var(--red);
    font-weight: bold;
    margin-top: auto;
    display: inline-block;
    padding-top: 10px;
}

/* Parallax Divider */
.parallax {
    background: linear-gradient(to right, var(--gold), var(--red));
    height: 3px;
    margin: 60px 0;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(45deg, var(--gold), var(--red));
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    font-size: 1.1em;
    margin-top: 20px;
    transition: all 0.3s;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px var(--shadow-gold-hover);
    color: white;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--navy-medium) 0%, var(--navy-dark) 100%);
    border-radius: 15px;
    padding: 60px 40px;
    text-align: center;
    margin: 60px 0;
    border: 2px solid var(--gold);
}

.cta-section h2 {
    margin-top: 0;
}

/* Footer */
.main-footer {
    background: linear-gradient(135deg, var(--navy-medium) 0%, var(--navy-dark) 100%);
    color: #fff;
    padding: 60px 0 40px;
    text-align: center;
    border-top: 3px solid var(--gold);
    margin-top: 80px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-links {
    margin: 30px 0;
}

.footer-links a {
    color: var(--gold);
    margin: 0 15px;
}

.footer-links a:hover {
    color: var(--red);
}

.copyright {
    margin-top: 30px;
    font-size: 14px;
    opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    }
}

@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .nav-container {
        flex-direction: column;
    }

    .nav-links {
        justify-content: center;
        gap: 15px;
    }

    .hero-section {
        height: 400px;
    }

    .hero-overlay h2 {
        font-size: 2em;
    }

    h1 {
        font-size: 2em;
    }

    h2 {
        font-size: 1.6em;
    }
}

@media (max-width: 480px) {
    .nav-links {
        flex-direction: column;
        width: 100%;
    }

    .main-nav a {
        display: block;
        text-align: center;
    }
}

/* For ultra-wide screens */
@media (min-width: 2000px) {
    .content-grid {
        grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    }

    .container {
        max-width: 1800px;
    }
}

/* Loading Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-card {
    animation: fadeIn 0.6s ease-out;
}