/* CSS Custom Properties */
:root {
    /* Primary Colors */
    --primary: 220 98% 61%; /* #0d6efd */
    --primary-dark: 220 98% 51%; /* #0a58ca */
    --secondary: 213 27% 84%; /* #ced4da */
    --success: 142 76% 36%; /* #198754 */
    --danger: 354 100% 61%; /* #dc3545 */
    --warning: 45 100% 51%; /* #ffc107 */
    --info: 188 78% 41%; /* #0dcaf0 */
    
    /* Neutral Colors */
    --dark: 210 29% 24%; /* #343a40 */
    --light: 210 17% 98%; /* #f8f9fa */
    --white: 0 0% 100%; /* #ffffff */
    --black: 0 0% 0%; /* #000000 */
    
    /* Background Colors */
    --background: 210 11% 98%; /* #f5f7fa */
    --surface: 0 0% 100%; /* #ffffff */
    --surface-dark: 210 29% 24%; /* #343a40 */
    
    /* Text Colors */
    --text-primary: 210 29% 24%; /* #343a40 */
    --text-secondary: 213 27% 84%; /* #ced4da */
    --text-muted: 210 14% 53%; /* #6c757d */
    --text-light: 0 0% 100%; /* #ffffff */
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, hsl(220 98% 61%), hsl(260 98% 61%));
    --gradient-secondary: linear-gradient(135deg, hsl(210 29% 24%), hsl(220 29% 34%));
    --gradient-tech: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-cyber: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 3px hsla(210 29% 24% / 0.1);
    --shadow-md: 0 4px 6px hsla(210 29% 24% / 0.1);
    --shadow-lg: 0 10px 15px hsla(210 29% 24% / 0.1);
    --shadow-xl: 0 20px 25px hsla(210 29% 24% / 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    
    /* Border Radius */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 3rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: hsl(var(--text-primary));
    background: hsl(var(--background));
    overflow-x: hidden;
}

/* Animated Background */
#particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: linear-gradient(135deg, #0c0c0c 0%, #1a1a2e 50%, #16213e 100%);
}

.circuit-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background-image: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="circuit" x="0" y="0" width="20" height="20" patternUnits="userSpaceOnUse"><path d="M 10,0 L 10,10 M 0,10 L 20,10" stroke="rgba(0,123,255,0.1)" stroke-width="0.5" fill="none"/><circle cx="10" cy="10" r="1" fill="rgba(0,123,255,0.2)"/></pattern></defs><rect width="100" height="100" fill="url(%23circuit)"/></svg>');
    opacity: 0.3;
    animation: circuitMove 20s linear infinite;
}

@keyframes circuitMove {
    0% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(-20px) translateY(-20px); }
    50% { transform: translateX(-40px) translateY(0); }
    75% { transform: translateX(-20px) translateY(20px); }
    100% { transform: translateX(0) translateY(0); }
}

/* Navigation */
.navbar {
    background: rgba(13, 26, 62, 0.95) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all var(--transition-normal);
    padding: 1rem 0;
}

.navbar.scrolled {
    background: rgba(13, 26, 62, 0.98) !important;
    padding: 0.5rem 0;
    box-shadow: var(--shadow-lg);
}

.navbar-brand {
    display: flex;
    align-items: center;
    font-weight: 700;
    font-size: 1.5rem;
    color: hsl(var(--text-light)) !important;
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    margin-right: var(--spacing-sm);
    filter: drop-shadow(0 0 10px rgba(0, 123, 255, 0.5));
}

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

.navbar-nav .nav-link {
    color: hsl(var(--text-secondary)) !important;
    font-weight: 500;
    margin: 0 var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md) !important;
    border-radius: var(--border-radius-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.navbar-nav .nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: left var(--transition-normal);
    z-index: -1;
}

.navbar-nav .nav-link:hover {
    color: hsl(var(--text-light)) !important;
    transform: translateY(-2px);
}

.navbar-nav .nav-link:hover::before {
    left: 0;
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: hsl(var(--text-light));
    overflow: hidden;
}

.hero-content {
    z-index: 2;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 1s ease-out;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease-in-out infinite alternate;
}

@keyframes gradientShift {
    0% { filter: hue-rotate(0deg); }
    100% { filter: hue-rotate(30deg); }
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.hero-buttons {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.btn {
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: hsl(var(--text-light));
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
    filter: brightness(1.1);
}

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: hsl(var(--text-light));
    background: transparent;
}

.btn-outline-light:hover {
    background: hsl(var(--text-light));
    color: hsl(var(--text-primary));
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Floating Elements Animation */
.hero-animation {
    position: relative;
    height: 500px;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.element {
    position: absolute;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--gradient-tech);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: hsl(var(--text-light));
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.element-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.element-2 {
    top: 20%;
    right: 20%;
    animation-delay: 1.5s;
}

.element-3 {
    bottom: 30%;
    left: 20%;
    animation-delay: 3s;
}

.element-4 {
    bottom: 10%;
    right: 10%;
    animation-delay: 4.5s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 30px;
    height: 30px;
    border: 2px solid hsl(var(--text-light));
    border-left: none;
    border-top: none;
    transform: rotate(45deg);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* Section Styles */
section {
    position: relative;
    z-index: 1;
}

.section-header {
    margin-bottom: 4rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: hsl(var(--text-primary));
    margin-bottom: var(--spacing-md);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-sm);
}

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

/* Services Section */
.services-section {
    background: hsl(var(--surface));
    padding: 5rem 0;
}

.service-card {
    background: hsl(var(--surface));
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    border: 1px solid rgba(0, 123, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 123, 255, 0.05), transparent);
    transition: left 0.6s ease;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: hsl(var(--primary));
}

.service-card:hover::before {
    left: 100%;
}

.service-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    font-size: 1.5rem;
    color: hsl(var(--text-light));
    position: relative;
}

.service-icon::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 50%;
    z-index: -1;
    filter: blur(20px);
    opacity: 0.3;
}

.service-card h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: hsl(var(--text-primary));
}

.service-card p {
    color: hsl(var(--text-muted));
    margin-bottom: var(--spacing-lg);
}

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    padding: var(--spacing-xs) 0;
    color: hsl(var(--text-muted));
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: hsl(var(--success));
    font-weight: bold;
}

/* Pricing Section */
.pricing-section {
    background: linear-gradient(135deg, hsl(var(--background)) 0%, hsl(var(--light)) 100%);
    padding: 5rem 0;
}

.pricing-card {
    background: hsl(var(--surface));
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    height: 100%;
    border: 2px solid transparent;
    position: relative;
    overflow: hidden;
}

.pricing-card.featured {
    border-color: hsl(var(--primary));
    transform: scale(1.05);
    z-index: 2;
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: -30px;
    background: var(--gradient-primary);
    color: hsl(var(--text-light));
    padding: var(--spacing-xs) var(--spacing-xl);
    font-size: 0.8rem;
    font-weight: 600;
    transform: rotate(45deg);
    text-transform: uppercase;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-10px);
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.pricing-header h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: hsl(var(--text-primary));
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.currency {
    font-size: 1.5rem;
    color: hsl(var(--text-muted));
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: hsl(var(--primary));
    margin: 0 var(--spacing-xs);
}

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

.pricing-features {
    list-style: none;
    padding: 0;
    margin-bottom: var(--spacing-xl);
}

.pricing-features li {
    padding: var(--spacing-sm) 0;
    display: flex;
    align-items: center;
}

.pricing-features i {
    margin-right: var(--spacing-sm);
    width: 16px;
}

.pricing-features .fa-check {
    color: hsl(var(--success));
}

.pricing-features .fa-times {
    color: hsl(var(--text-muted));
}

/* About Section */
.about-section {
    background: hsl(var(--surface));
    padding: 5rem 0;
}

.about-content {
    padding-right: var(--spacing-lg);
}

.about-content .lead {
    font-size: 1.25rem;
    color: hsl(var(--primary));
    margin-bottom: var(--spacing-lg);
}

.stats-row {
    display: flex;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: hsl(var(--primary));
    display: block;
}

.stat-label {
    color: hsl(var(--text-muted));
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.about-features {
    padding-left: var(--spacing-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-xl);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-lg);
    font-size: 1.25rem;
    color: hsl(var(--text-light));
    flex-shrink: 0;
}

.feature-content h5 {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: hsl(var(--text-primary));
}

.feature-content p {
    color: hsl(var(--text-muted));
    margin: 0;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(135deg, hsl(var(--background)) 0%, hsl(var(--light)) 100%);
    padding: 5rem 0;
}

.contact-info {
    padding-right: var(--spacing-lg);
}

.contact-info h4 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: hsl(var(--text-primary));
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: var(--spacing-lg);
    color: hsl(var(--text-light));
    flex-shrink: 0;
}

.contact-details h6 {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: hsl(var(--text-primary));
}

.contact-details p {
    color: hsl(var(--text-muted));
    margin: 0;
}

/* Contact Form */
.contact-form-wrapper {
    background: hsl(var(--surface));
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.contact-form-wrapper h4 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xl);
    color: hsl(var(--text-primary));
}

.form-group {
    margin-bottom: var(--spacing-lg);
    position: relative;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: hsl(var(--text-primary));
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid rgba(0, 123, 255, 0.1);
    border-radius: var(--border-radius-md);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: hsl(var(--surface));
    color: hsl(var(--text-primary));
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: hsl(var(--primary));
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
    transform: translateY(-2px);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-feedback {
    margin-top: var(--spacing-sm);
    font-size: 0.875rem;
    min-height: 20px;
}

.form-feedback.valid {
    color: hsl(var(--success));
}

.form-feedback.invalid {
    color: hsl(var(--danger));
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
    border-color: hsl(var(--danger));
}

.form-group.has-success input,
.form-group.has-success select,
.form-group.has-success textarea {
    border-color: hsl(var(--success));
}

/* Form Button States */
.btn .btn-loading {
    display: none;
}

.btn.loading .btn-text {
    display: none;
}

.btn.loading .btn-loading {
    display: inline;
}

.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

/* Footer */
.footer {
    background: hsl(var(--surface-dark));
    color: hsl(var(--text-secondary));
}

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

.footer-logo {
    width: 40px;
    height: 40px;
    margin-right: var(--spacing-sm);
    filter: drop-shadow(0 0 10px rgba(0, 123, 255, 0.5));
}

.footer-brand span {
    font-size: 1.25rem;
    font-weight: 600;
    color: hsl(var(--text-light));
}

.footer-text {
    color: hsl(var(--text-secondary));
    margin-bottom: 0;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    justify-content: flex-end;
}

.footer-links a {
    color: hsl(var(--text-secondary));
    text-decoration: none;
    transition: color var(--transition-normal);
}

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

.footer-social {
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(0, 123, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: hsl(var(--text-secondary));
    transition: all var(--transition-normal);
}

.footer-social a:hover {
    background: hsl(var(--primary));
    color: hsl(var(--text-light));
    transform: translateY(-3px);
}

.footer-divider {
    border: none;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    margin: var(--spacing-lg) 0;
}

.copyright {
    color: hsl(var(--text-secondary));
    font-size: 0.9rem;
    margin: 0;
}

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-animation {
        height: 300px;
        margin-top: var(--spacing-xl);
    }
    
    .element {
        width: 60px;
        height: 60px;
        font-size: 1.25rem;
    }
    
    .about-content,
    .about-features,
    .contact-info {
        padding-right: 0;
        padding-left: 0;
        margin-bottom: var(--spacing-xl);
    }
    
    .stats-row {
        justify-content: space-around;
    }
    
    .footer-links,
    .footer-social {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .stats-row {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .navbar-nav {
        text-align: center;
        margin-top: var(--spacing-md);
    }
    
    .navbar-nav .nav-link {
        margin: var(--spacing-xs) 0;
    }
}

@media (max-width: 576px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .contact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-icon {
        margin: 0 auto var(--spacing-md) auto;
    }
    
    .feature-item {
        flex-direction: column;
        text-align: center;
    }
    
    .feature-icon {
        margin: 0 auto var(--spacing-md) auto;
    }
}

/* Loading Animation */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: hsl(var(--surface-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 123, 255, 0.3);
    border-top: 3px solid hsl(var(--primary));
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: hsl(var(--background));
}

::-webkit-scrollbar-thumb {
    background: hsl(var(--primary));
    border-radius: var(--border-radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: hsl(var(--primary-dark));
}