/* ===================================
   Global Connectivity Hub - Premium Styles
   ===================================== */

/* CSS Custom Properties */
:root {
    /* Premium Dark Theme Palette */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;

    /* Accent Colors - Cosmic Blue & Teal */
    --accent-primary: #00d4ff;
    --accent-secondary: #7c3aed;
    --accent-tertiary: #10b981;
    --accent-gradient: linear-gradient(135deg, #00d4ff 0%, #7c3aed 50%, #00d4ff 100%);
    --accent-glow: rgba(0, 212, 255, 0.3);

    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --text-muted: rgba(255, 255, 255, 0.6);
    --text-subtle: rgba(255, 255, 255, 0.4);

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-hover: rgba(255, 255, 255, 0.06);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 5rem;
    --space-3xl: 8rem;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', 'Inter', sans-serif;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ambient Background */
.ambient-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background:
        radial-gradient(ellipse 80% 50% at 20% 20%, rgba(0, 212, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(124, 58, 237, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 50% 50%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.3;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    background: var(--accent-gradient);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientFlow 8s ease infinite;
}

h2 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    color: var(--text-primary);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: var(--space-md);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition-fast);
    position: relative;
}

a:hover {
    color: var(--accent-tertiary);
}

a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent-primary);
    transition: var(--transition-normal);
}

a:hover::after {
    width: 100%;
}

/* Animations */
@keyframes gradientFlow {

    0%,
    100% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) 0;
    transition: var(--transition-normal);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: var(--space-sm) 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.75rem;
    animation: float 3s ease-in-out infinite;
}

.logo-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
}

.nav-links a {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--space-xs) 0;
    transition: var(--transition-fast);
}

.nav-links a:hover {
    color: var(--accent-primary);
}

.nav-links a::after {
    bottom: 0;
    background: var(--accent-gradient);
    height: 2px;
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--space-3xl) var(--space-lg);
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    text-align: center;
    z-index: 2;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    color: var(--accent-primary);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-lg);
    text-transform: uppercase;
}

.hero h1 {
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Hero Visual */
.hero-visual {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    width: 400px;
    height: 400px;
    pointer-events: none;
    opacity: 0.5;
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
}

.ring-1 {
    width: 200px;
    height: 200px;
    animation: rotate 20s linear infinite;
}

.ring-2 {
    width: 300px;
    height: 300px;
    animation: rotate 30s linear infinite reverse;
}

.ring-3 {
    width: 400px;
    height: 400px;
    animation: rotate 40s linear infinite;
}

.satellite-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    animation: float 4s ease-in-out infinite;
}

/* Section Base */
.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-2xl);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-slow);
}

.section-header.visible {
    opacity: 1;
    transform: translateY(0);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: var(--space-md);
}

.section-subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Glass Card */
.glass-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-slow);
}

.glass-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.glass-card:hover {
    background: var(--glass-hover);
    border-color: rgba(0, 212, 255, 0.2);
    transform: translateY(-5px);
}

/* Introduction Section */
.intro-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.intro-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.section-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    animation: float 3s ease-in-out infinite;
}

.intro-text {
    text-align: left;
    margin-top: var(--space-xl);
}

.intro-text p {
    font-size: 1.05rem;
    line-height: 1.8;
}

/* Satellite Section */
.satellite-section {
    background: var(--bg-secondary);
}

.content-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--space-lg);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-sm);
}

.content-grid::-webkit-scrollbar {
    height: 8px;
}

.content-grid::-webkit-scrollbar-track {
    background: var(--glass-bg);
    border-radius: 4px;
}

.content-grid::-webkit-scrollbar-thumb {
    background: var(--accent-primary);
    border-radius: 4px;
}

.content-card {
    flex: 0 0 380px;
    min-width: 380px;
    scroll-snap-align: start;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

/* Equipment Section */
.equipment-section {
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.equipment-showcase {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-sm);
}

.equipment-showcase::-webkit-scrollbar {
    height: 8px;
}

.equipment-showcase::-webkit-scrollbar-track {
    background: var(--glass-bg);
    border-radius: 4px;
}

.equipment-showcase::-webkit-scrollbar-thumb {
    background: var(--accent-secondary);
    border-radius: 4px;
}

.equipment-item {
    flex: 0 0 260px;
    min-width: 260px;
    text-align: center;
    padding: var(--space-lg);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-slow);
    scroll-snap-align: start;
}

.equipment-item.visible {
    opacity: 1;
    transform: translateY(0);
}

.equipment-item:hover {
    background: var(--glass-hover);
    border-color: rgba(124, 58, 237, 0.3);
    transform: translateY(-5px) scale(1.02);
}

.equipment-visual {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--space-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    border-radius: 50%;
}

.equipment-icon {
    font-size: 2rem;
}

.equipment-item h3 {
    font-size: 1.1rem;
    margin-bottom: var(--space-xs);
}

.equipment-item p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 0;
}

.equipment-content {
    max-width: 900px;
    margin: 0 auto;
}

/* Mobility Section */
.mobility-section {
    background: var(--bg-primary);
}

.mobility-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--space-lg);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-sm);
}

.mobility-grid::-webkit-scrollbar {
    height: 8px;
}

.mobility-grid::-webkit-scrollbar-track {
    background: var(--glass-bg);
    border-radius: 4px;
}

.mobility-grid::-webkit-scrollbar-thumb {
    background: var(--accent-tertiary);
    border-radius: 4px;
}

.mobility-feature {
    flex: 0 0 400px;
    min-width: 400px;
    scroll-snap-align: start;
}

.feature-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
}

.feature-icon {
    font-size: 2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 212, 255, 0.1));
    border-radius: var(--radius-md);
}

/* Platforms Section */
.platforms-section {
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.platforms-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: var(--space-lg);
    justify-content: center;
}

.platform-card {
    flex: 0 0 500px;
    min-width: 400px;
    max-width: 500px;
}

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

.platform-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    animation: float 3s ease-in-out infinite;
}

/* Disclaimer Section */
.disclaimer-section {
    background: var(--bg-secondary);
    padding: var(--space-2xl) 0;
}

.disclaimer-card {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.disclaimer-icon {
    font-size: 2.5rem;
    margin-bottom: var(--space-md);
}

.disclaimer-content {
    text-align: left;
    margin-top: var(--space-lg);
}

.disclaimer-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    border-left: 3px solid var(--glass-border);
    padding-left: var(--space-md);
    margin-bottom: var(--space-lg);
}

.disclaimer-content strong {
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--bg-tertiary);
    border-top: 1px solid var(--glass-border);
    padding: var(--space-2xl) 0;
}

.footer-content {
    text-align: center;
}

.footer-brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.footer-text {
    color: var(--text-muted);
    max-width: 500px;
    margin: 0 auto var(--space-lg);
}

.footer-meta {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    color: var(--text-subtle);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-visual {
        display: none;
    }

    .content-card {
        flex: 0 0 340px;
        min-width: 340px;
    }

    .mobility-feature {
        flex: 0 0 360px;
        min-width: 360px;
    }

    .platform-card {
        flex: 0 0 400px;
        min-width: 350px;
    }
}

@media (max-width: 768px) {
    :root {
        --space-lg: 1.5rem;
        --space-xl: 2rem;
        --space-2xl: 3rem;
        --space-3xl: 5rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding-top: 100px;
    }

    .hero-stats {
        gap: var(--space-lg);
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .glass-card {
        padding: var(--space-lg);
    }

    .content-card {
        flex: 0 0 300px;
        min-width: 300px;
    }

    .equipment-item {
        flex: 0 0 220px;
        min-width: 220px;
    }

    .mobility-feature {
        flex: 0 0 320px;
        min-width: 320px;
    }

    .platforms-grid {
        flex-wrap: wrap;
        justify-content: center;
    }

    .platform-card {
        flex: 0 0 100%;
        min-width: 100%;
        max-width: 100%;
    }

    .footer-meta {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 480px) {
    .hero-badge {
        font-size: 0.75rem;
    }

    .content-card {
        flex: 0 0 280px;
        min-width: 280px;
    }

    .equipment-item {
        flex: 0 0 200px;
        min-width: 200px;
    }

    .mobility-feature {
        flex: 0 0 280px;
        min-width: 280px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus States */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 4px;
}

/* Selection */
::selection {
    background: rgba(0, 212, 255, 0.3);
    color: var(--text-primary);
}