/* ===== ROOT VARIABLES ===== */
:root {
    /* Atena Brand Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #8b5cf6;
    --accent-color: #10b981;
    
    /* Grayscale */
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    
    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
}

/* ===== GLOBAL STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

@font-face {
    font-display: swap;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: 1.5rem;
}

/* ===== UTILITIES ===== */
.gradient-text {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-success {
    color: var(--success);
}

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

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-small {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-base);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.5rem;
    font-weight: 800;
}

.nav-logo-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.nav-title {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    opacity: 0.4;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at top, rgba(37, 99, 235, 0.2), transparent 50%),
                radial-gradient(ellipse at bottom, rgba(139, 92, 246, 0.2), transparent 50%);
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.8) 0%, rgba(15, 23, 42, 0.95) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-text {
    max-width: 900px;
}

.hero-title {
    margin-bottom: var(--spacing-lg);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-xl);
    left: 50%;
    transform: translateX(-50%);
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* Animation Classes */
.animate-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.delay-1 {
    animation-delay: 0.2s;
}

.delay-2 {
    animation-delay: 0.4s;
}

.delay-3 {
    animation-delay: 0.6s;
}

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

/* ===== SECTIONS ===== */
section {
    padding: var(--spacing-2xl) 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
}

.section-title {
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ===== SERVICES GRID ===== */
.services {
    background: var(--bg-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-color);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: var(--radius-lg);
    font-size: 2.5rem;
    color: var(--primary-color);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.5rem;
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== VIDEO SECTION ===== */
.video-section {
    background: var(--bg-darker);
}

.video-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.video-text h2 {
    margin-bottom: var(--spacing-md);
}

.video-text p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.feature-list {
    display: grid;
    gap: var(--spacing-sm);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 1.125rem;
}

.feature-list i {
    color: var(--success);
    font-size: 1.25rem;
}

.video-player {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.dashboard-mockup {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-card-hover));
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dashboard-icon {
    font-size: 5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

/* ===== USE CASES ===== */
.use-cases-section {
    background: var(--bg-dark);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.use-case {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.use-case:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.2);
}

.use-case i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.use-case h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.25rem;
}

.use-case p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== PRICING ===== */
.pricing {
    background: var(--bg-darker);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.pricing-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    box-shadow: 0 0 60px rgba(37, 99, 235, 0.3);
}

.pricing-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.pricing-badge.popular {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.pricing-title {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    font-size: 2rem;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-sm);
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.period {
    font-size: 1.25rem;
    color: var(--text-muted);
}

.custom {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

.pricing-description {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.pricing-features {
    display: grid;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.pricing-features li {
    display: flex;
    align-items: start;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.pricing-features i {
    color: var(--success);
    margin-top: 4px;
}

.pricing-sla {
    background: rgba(37, 99, 235, 0.1);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.pricing-sla strong {
    display: block;
    margin-bottom: var(--spacing-xs);
}

.sla-item {
    color: var(--text-secondary);
    font-size: 0.875rem;
    padding: var(--spacing-xs) 0;
}

/* ===== COMPARISON TABLE ===== */
.comparison {
    background: var(--bg-dark);
}

.table-container {
    overflow-x: auto;
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    background: var(--bg-card);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.comparison-table thead {
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-color));
}

.comparison-table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
}

.comparison-table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.comparison-table tbody tr:hover {
    background: var(--bg-card-hover);
}

.comparison-table i {
    font-size: 1.25rem;
}

/* ===== SLA SECTION ===== */
.sla-section {
    background: var(--bg-darker);
}

.sla-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.sla-card {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 2px solid transparent;
    transition: all var(--transition-base);
}

.sla-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.sla-card.critical {
    border-color: var(--danger);
}

.sla-card.high {
    border-color: var(--warning);
}

.sla-card.medium {
    border-color: var(--info);
}

.sla-card.low {
    border-color: var(--success);
}

.sla-severity {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.sla-severity i {
    font-size: 1.5rem;
}

.sla-card.critical .sla-severity i {
    color: var(--danger);
}

.sla-card.high .sla-severity i {
    color: var(--warning);
}

.sla-card.medium .sla-severity i {
    color: var(--info);
}

.sla-card.low .sla-severity i {
    color: var(--success);
}

.sla-card h3 {
    margin-bottom: var(--spacing-sm);
}

.sla-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.sla-times {
    display: grid;
    gap: var(--spacing-sm);
}

.sla-time {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--radius-md);
}

.sla-time .label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.sla-time .value {
    font-weight: 600;
}

/* ===== PLATFORMS SECTION ===== */
.platforms {
    background: var(--bg-dark);
}

.platforms-category {
    margin-bottom: var(--spacing-2xl);
}

.category-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    color: var(--primary-color);
}

.logos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.logo-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-item:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
}

.client-logo-placeholder {
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: var(--radius-lg);
    font-size: 2.5rem;
    color: var(--primary-color);
}

.logo-item span {
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.case-studies {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.case-study-card {
    background: var(--bg-card);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.case-study-card h4 {
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.case-study-card i {
    color: var(--success);
}

.case-study-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== DASHBOARD PREVIEW ===== */
.dashboard-preview {
    background: var(--bg-darker);
}

.dashboard-video {
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.dashboard-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.device-mockup {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-base);
}

.device-mockup:hover {
    transform: translateY(-8px);
    border-color: var(--primary-color);
}

.device-mockup i {
    font-size: 4rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.device-mockup p {
    color: var(--text-secondary);
    font-weight: 600;
}

/* ===== CONTACT SECTION ===== */
.contact {
    background: var(--bg-dark);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.contact-info h2 {
    margin-bottom: var(--spacing-md);
}

.contact-info > p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 1.125rem;
}

.contact-features {
    display: grid;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-feature {
    display: flex;
    gap: var(--spacing-md);
}

.contact-feature i {
    font-size: 2rem;
    color: var(--primary-color);
}

.contact-feature h4 {
    margin-bottom: var(--spacing-xs);
    font-size: 1.125rem;
}

.contact-feature p {
    color: var(--text-secondary);
}

.trust-badges {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.badge-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
}

.badge-item i {
    color: var(--primary-color);
}

.contact-form-container {
    background: var(--bg-card);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-form {
    display: grid;
    gap: var(--spacing-md);
}

.form-group {
    display: grid;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    font-size: 0.875rem;
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-sm);
    background: var(--bg-darker);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

.footer-section ul {
    display: grid;
    gap: var(--spacing-sm);
}

.footer-section a {
    color: var(--text-secondary);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--primary-color);
}

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

.footer-logo-icon {
    font-size: 2rem;
    color: var(--primary-color);
}

.footer-section p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: var(--text-muted);
}

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

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.4);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .video-content {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: var(--spacing-xl);
        transition: left var(--transition-base);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-toggle {
        display: block;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .pricing-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
}
/* ===== ENHANCED ESSENTIAL FEATURES SECTION ===== */
.features-essential {
    background: linear-gradient(180deg, var(--bg-darker) 0%, var(--bg-dark) 50%, var(--bg-darker) 100%);
    padding: var(--spacing-2xl) 0;
    position: relative;
    overflow: hidden;
}

.features-essential::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 30%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.section-badge {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.2), rgba(139, 92, 246, 0.2));
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--primary-light);
}

.features-essential-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
    position: relative;
    z-index: 1;
}

.feature-essential-card {
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-essential-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-essential-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border-color: rgba(37, 99, 235, 0.3);
}

.feature-essential-card:hover::before {
    opacity: 1;
}

/* Color variants for cards */
.card-purple { border-top-color: #9b59b6; }
.card-blue { border-top-color: #2563eb; }
.card-green { border-top-color: #10b981; }
.card-orange { border-top-color: #f59e0b; }
.card-red { border-top-color: #ef4444; }
.card-cyan { border-top-color: #06b6d4; }

.feature-essential-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.card-purple .feature-essential-icon {
    background: linear-gradient(135deg, #9b59b6, #8b5cf6);
    box-shadow: 0 10px 30px rgba(155, 89, 182, 0.3);
}

.card-blue .feature-essential-icon {
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.3);
}

.card-green .feature-essential-icon {
    background: linear-gradient(135deg, #10b981, #34d399);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.card-orange .feature-essential-icon {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.3);
}

.card-red .feature-essential-icon {
    background: linear-gradient(135deg, #ef4444, #f87171);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.3);
}

.card-cyan .feature-essential-icon {
    background: linear-gradient(135deg, #06b6d4, #22d3ee);
    box-shadow: 0 10px 30px rgba(6, 182, 212, 0.3);
}

.feature-essential-content h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-essential-desc {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    font-size: 1rem;
}

.feature-essential-list {
    list-style: none;
    margin: var(--spacing-lg) 0;
}

.feature-essential-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.feature-essential-list li i {
    color: var(--accent-color);
    font-size: 1.125rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.feature-essential-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-top: var(--spacing-md);
}

.feature-essential-badge i {
    font-size: 1rem;
}

/* Features CTA */
.features-essential-cta {
    text-align: center;
    padding: var(--spacing-2xl);
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(139, 92, 246, 0.1));
    border-radius: var(--radius-xl);
    margin-top: var(--spacing-2xl);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

.features-essential-cta h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.features-essential-cta p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

/* Responsive adjustments for Essential Features */
@media (max-width: 1024px) {
    .features-essential-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-essential-card {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .feature-essential-icon {
        width: 64px;
        height: 64px;
        font-size: 2rem;
    }
    
    .feature-essential-content h3 {
        font-size: 1.5rem;
    }
    
    .features-essential-cta h3 {
        font-size: 1.5rem;
    }
}

/* Animation for Essential Features */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-essential-card {
    animation: fadeInUp 0.6s ease-out;
    animation-fill-mode: both;
}

.feature-essential-card:nth-child(1) { animation-delay: 0.1s; }
.feature-essential-card:nth-child(2) { animation-delay: 0.2s; }
.feature-essential-card:nth-child(3) { animation-delay: 0.3s; }
.feature-essential-card:nth-child(4) { animation-delay: 0.4s; }
.feature-essential-card:nth-child(5) { animation-delay: 0.5s; }
.feature-essential-card:nth-child(6) { animation-delay: 0.6s; }

/* ===== CAROUSEL STYLES ===== */
.carousel-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.carousel-slides {
    position: relative;
    width: 100%;
    aspect-ratio: 16/10;
}

.carousel-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-slide.active {
    opacity: 1;
    z-index: 1;
}

.carousel-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-xl);
}

.carousel-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
    background: rgba(15, 23, 42, 0.6);
    padding: 10px 20px;
    border-radius: 50px;
    backdrop-filter: blur(10px);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.dot:hover {
    background: rgba(255, 255, 255, 0.6);
    transform: scale(1.2);
}

.dot.active {
    background: var(--primary-color);
    border-color: white;
    transform: scale(1.3);
}

/* Responsive Carousel */
@media (max-width: 768px) {
    .carousel-container {
        max-width: 100%;
    }
    
    .carousel-dots {
        bottom: 15px;
        gap: 8px;
        padding: 8px 15px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
}