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

:root {
    /* Color Palette */
    --primary-dark: #1a1a1a;
    --soft-dark: #2d2d2d;
    --dark-gray: #3a3a3a;
    --medium-gray: #666666;
    --light-gray: #999999;
    --pure-white: #ffffff;
    --off-white: #f5f5f5;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-size-xs: 0.875rem;
    --font-size-sm: 1rem;
    --font-size-md: 1.125rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.5rem;
    --font-size-xxl: 2rem;
    --font-size-xxxl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s ease;
    --transition-slow: 0.6s ease;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    
    /* Border radius */
    --border-radius: 8px;
    --border-radius-lg: 12px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--pure-white);
    background-color: var(--primary-dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header and Navigation */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(26, 26, 26, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--dark-gray);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar {
    padding: var(--spacing-sm) 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--pure-white);
    text-decoration: none;
}

.logo-img {
    width: 32px;
    height: 32px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    color: var(--light-gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--pure-white);
    transition: var(--transition-fast);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.bar {
    width: 25px;
    height: 3px;
    background: var(--soft-dark);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--soft-dark) 100%);
    padding-top: 80px;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
}

.hero-content {
    max-width: 500px;
}

.hero-title {
    font-size: var(--font-size-xxxl);
    font-weight: 800;
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--medium-gray);
    margin-bottom: var(--spacing-xl);
    line-height: 1.6;
}

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

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.server-icon {
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.server-rack {
    width: 120px;
    height: 200px;
    background: var(--dark-gray);
    border-radius: var(--border-radius);
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 16px;
    box-shadow: var(--shadow-lg);
}

.server-unit {
    height: 32px;
    background: var(--dark-gray);
    border-radius: 4px;
    position: relative;
}

.server-unit::before {
    content: '';
    position: absolute;
    top: 50%;
    right: 8px;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 50%;
}

.server-unit.active::before {
    background: #00ff88;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    min-width: 140px;
    text-align: center;
}

.btn-primary {
    background: var(--soft-dark);
    color: var(--pure-white);
}

.btn-primary:hover {
    background: var(--dark-gray);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: transparent;
    color: var(--pure-white);
    border-color: var(--light-gray);
}

.btn-secondary:hover {
    background: var(--soft-dark);
    color: var(--pure-white);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    color: var(--light-gray);
    border-color: var(--medium-gray);
}

.btn-outline:hover {
    background: var(--dark-gray);
    color: var(--pure-white);
    border-color: var(--dark-gray);
}

.btn-full {
    width: 100%;
}

/* Sections */
section {
    padding: var(--spacing-xxl) 0;
}

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

.section-title {
    font-size: var(--font-size-xxl);
    font-weight: 700;
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--medium-gray);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background: var(--soft-dark);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: var(--dark-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    border: 1px solid var(--medium-gray);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 60px;
    height: 60px;
    background: var(--pure-white);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary-dark);
}

.service-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--pure-white);
    margin-bottom: var(--spacing-md);
}

.service-description {
    color: var(--medium-gray);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

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

.service-features li {
    color: var(--light-gray);
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--pure-white);
    font-weight: 600;
}

/* Pricing Section */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--pure-white);
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    position: relative;
    transition: var(--transition-smooth);
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border-color: var(--light-gray);
    transform: scale(1.05);
    background: var(--soft-dark);
    color: var(--pure-white);
}

.featured-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--soft-dark);
    color: var(--pure-white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    font-weight: 600;
}

.pricing-card.featured .featured-badge {
    background: var(--pure-white);
    color: var(--pure-white);
}

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

.plan-name {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.plan-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 2px;
}

.currency {
    font-size: var(--font-size-lg);
    font-weight: 600;
}

.amount {
    font-size: var(--font-size-xxxl);
    font-weight: 800;
}

.period {
    font-size: var(--font-size-sm);
    color: var(--medium-gray);
}

.pricing-card.featured .period {
    color: var(--light-gray);
}

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

.plan-features li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--light-gray);
}

.pricing-card.featured .plan-features li {
    border-color: rgba(255, 255, 255, 0.2);
}

.plan-features li:last-child {
    border-bottom: none;
}

/* Contact Section */
.contact {
    background: var(--soft-dark);
}

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

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

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--pure-white);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-icon svg {
    width: 24px;
    height: 24px;
    color: var(--primary-dark);
}

.contact-details h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--pure-white);
    margin-bottom: var(--spacing-xs);
}

.contact-details p {
    color: var(--medium-gray);
}

/* Form Styles */
.form {
    background: var(--dark-gray);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

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

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
    font-family: inherit;
    transition: var(--transition-fast);
    background: var(--soft-dark);
    color: var(--pure-white);
}

.form-input:focus {
    outline: none;
    border-color: var(--light-gray);
}

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

/* Footer */
.footer {
    background: var(--primary-dark);
    color: var(--pure-white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    border-top: 1px solid var(--dark-gray);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--light-gray);
    line-height: 1.6;
}

.footer-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
}

.footer-links a {
    color: var(--light-gray);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    border-top: 1px solid var(--dark-gray);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: var(--light-gray);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--pure-white);
        width: 100%;
        text-align: center;
        transition: var(--transition-smooth);
        box-shadow: var(--shadow-md);
        padding: var(--spacing-lg);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .bar:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .nav-toggle.active .bar:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }

    .hero-title {
        font-size: var(--font-size-xxl);
    }

    .services-grid {
        grid-template-columns: 1fr;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .hero-buttons {
        justify-content: center;
    }

    .server-icon {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .nav-container {
        padding: 0 var(--spacing-sm);
    }

    .hero-title {
        font-size: var(--font-size-xl);
    }

    .section-title {
        font-size: var(--font-size-xl);
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        min-width: 120px;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 200px;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-8px);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus styles for accessibility */
.btn:focus,
.nav-link:focus,
.form-input:focus {
    outline: 2px solid var(--primary-black);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --medium-gray: #333333;
        --light-gray: #cccccc;
    }
}