/* Lab & Server Website Styles */

/* ===== Variables ===== */
:root {
    /* Color Palette */
    --primary-blue: #1E88E5;
    --secondary-blue: #0D47A1;
    --accent-blue: #64B5F6;
    --background-white: #FFFFFF;
    --off-white: #F5F7FA;
    --text-dark: #333333;
    --text-light: #757575;
    --border-light: #E0E0E0;
    --shadow-color: rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --heading-font: 'Montserrat', sans-serif;
    --body-font: 'Open Sans', sans-serif;
    --code-font: monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Container */
    --container-width: 1200px;
    --container-padding: 1.5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
}

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

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

a:hover {
    color: var(--secondary-blue);
}

ul {
    list-style: none;
}

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

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

h4 {
    font-size: 1.25rem;
}

p {
    margin-bottom: var(--spacing-md);
}

.highlight {
    color: var(--primary-blue);
}

/* ===== Layout ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

section {
    padding: var(--spacing-xl) 0;
}

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

.section-header h2 {
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--heading-font);
    border: none;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: white;
    box-shadow: 0 4px 6px rgba(30, 136, 229, 0.25);
}

.btn-primary:hover {
    background-color: var(--secondary-blue);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(30, 136, 229, 0.3);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--off-white);
    color: var(--secondary-blue);
    border-color: var(--secondary-blue);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-blue);
    border: 1px solid var(--border-light);
}

.btn-outline:hover {
    border-color: var(--primary-blue);
    background-color: rgba(30, 136, 229, 0.05);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn i {
    margin-left: 0.5rem;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    padding: 1rem 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    color: var(--text-dark);
}

.logo-text {
    font-family: var(--heading-font);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.logo-text .accent {
    color: var(--primary-blue);
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--text-dark);
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-blue);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-blue);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: var(--text-dark);
    transition: all var(--transition-fast);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    padding: var(--spacing-xxl) 0 calc(var(--spacing-xxl) + 100px);
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
    color: white;
    overflow: hidden;
}

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

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: white;
}

.hero-content .lead {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

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

.hero-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 4/3;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.server-illustration {
    width: 80%;
    height: 80%;
}

.server-rack {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 20px;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}

.server-unit {
    height: 60px;
    background-color: rgba(255, 255, 255, 0.3);
    border-radius: 5px;
    position: relative;
}

.server-unit::before {
    content: '';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
}

.server-unit.active::before {
    background-color: #4CAF50;
    box-shadow: 0 0 10px #4CAF50;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
}

/* ===== Intro Section ===== */
.intro {
    padding-top: var(--spacing-xl);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
}

.info-card {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--off-white);
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 2px 10px var(--shadow-color);
}

.info-icon {
    font-size: 2rem;
    color: var(--primary-blue);
    flex-shrink: 0;
}

.info-content h3 {
    margin-bottom: var(--spacing-xs);
}

.info-content p {
    margin-bottom: 0;
}

/* ===== Comparison Section ===== */
.comparison {
    background-color: var(--off-white);
}

.comparison-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.card {
    background-color: white;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--shadow-color);
}

.card-header {
    padding: var(--spacing-lg);
    background-color: var(--primary-blue);
    color: white;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.card-icon {
    font-size: 2rem;
    background-color: rgba(255, 255, 255, 0.2);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-header h3 {
    margin-bottom: 0;
    color: white;
}

.card-body {
    padding: var(--spacing-lg);
}

.card-body h4 {
    margin: var(--spacing-md) 0 var(--spacing-sm);
}

.card-body ul {
    margin-bottom: var(--spacing-md);
}

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

.card-body li i {
    color: var(--primary-blue);
}

.card-footer {
    padding: var(--spacing-md) var(--spacing-lg);
    border-top: 1px solid var(--border-light);
    text-align: center;
}

/* ===== User Types Section ===== */
.user-type-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.user-type-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: 0 5px 15px var(--shadow-color);
    text-align: center;
    transition: transform var(--transition-normal);
}

.user-type-card:hover {
    transform: translateY(-5px);
}

.user-icon {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: var(--spacing-md);
    width: 80px;
    height: 80px;
    background-color: var(--off-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

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

.user-type-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.link-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
    color: var(--primary-blue);
}

.link-arrow i {
    transition: transform var(--transition-fast);
}

.link-arrow:hover i {
    transform: translateX(3px);
}

/* ===== Featured Content Section ===== */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.featured-card {
    display: flex;
    background-color: var(--off-white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.featured-image {
    width: 100px;
    background-color: var(--primary-blue);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.featured-content {
    padding: var(--spacing-md);
    flex: 1;
}

.featured-content h3 {
    margin-bottom: var(--spacing-xs);
}

.featured-content p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
    font-size: 0.9rem;
}

/* ===== Footer ===== */
.site-footer {
    background-color: var(--secondary-blue);
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo .logo-text {
    color: white;
    font-size: 1.75rem;
}

.footer-logo p {
    opacity: 0.8;
    margin-top: var(--spacing-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.footer-section h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: white;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: background-color var(--transition-fast);
}

.social-links a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    opacity: 0.7;
}

.footer-bottom p {
    margin-bottom: var(--spacing-sm);
}

.footer-bottom i {
    color: #ff6b6b;
}

/* ===== Responsive Styles ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-image {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: 0 5px 10px var(--shadow-color);
        transform: translateY(-150%);
        transition: transform var(--transition-normal);
        z-index: 99;
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .comparison-cards,
    .user-type-grid,
    .featured-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .hero {
        padding: var(--spacing-xl) 0 calc(var(--spacing-xl) + 50px);
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .featured-card {
        flex-direction: column;
    }
    
    .featured-image {
        width: 100%;
        height: 100px;
    }
}