/* DesignArTech IT Services - Modern CSS */

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

:root {
    /* Color Palette */
    --primary-blue: #1775D5;
    --dark-blue: #0D4A8F;
    --light-blue: #89A9C7;
    --text-dark: #5A6370;
    --text-light: #D1D3D7;
    --bg-gray: #6F7A86;
    --bg-light: #F8F9FA;
    --white: #FFFFFF;
    --border-color: #D7D7D7;
    
    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    --font-heading: 'Arial', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Global Styles */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--primary-blue);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    letter-spacing: 0.02em;
}

h1 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

h2 {
    font-size: 1.5rem;
}

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

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

a:hover {
    color: var(--dark-blue);
    text-decoration: underline;
}

ul, ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

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

/* Container & Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header Styles */
.top-bar {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: var(--spacing-xs) 0;
    font-size: 0.9rem;
}

.top-links {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: var(--spacing-md);
}

.top-links a {
    color: var(--white);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

.top-links a:hover {
    opacity: 0.8;
    text-decoration: none;
}

.header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo-section h1 {
    font-size: 1.8rem;
    color: var(--primary-blue);
    margin: 0;
    line-height: 1.2;
}

.logo-section .subtitle {
    font-size: 1rem;
    color: var(--text-dark);
    font-weight: normal;
}

/* Navigation */
.main-nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
    margin: 0;
}

.main-nav a {
    color: var(--text-dark);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.05em;
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--primary-blue);
    text-decoration: none;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-blue);
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* Main Content Layout */
.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    min-height: 60vh;
}

.content-area {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.content-area h1 {
    border-bottom: 3px solid var(--light-blue);
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

/* Sidebar */
.sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.sidebar-item {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.sidebar-header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--dark-blue) 100%);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-md);
}

.sidebar-header h2 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
    color: var(--white);
}

.sidebar-content {
    padding: var(--spacing-md);
    font-size: 0.9rem;
    line-height: 1.6;
}

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

.sidebar-links {
    list-style: none;
    margin: 0;
}

.sidebar-links li {
    margin: 0;
}

.sidebar-links a {
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--text-dark);
    border-left: 3px solid transparent;
    transition: all var(--transition-fast);
}

.sidebar-links a:hover {
    background: var(--bg-light);
    border-left-color: var(--primary-blue);
    text-decoration: none;
    padding-left: calc(var(--spacing-md) + 5px);
}

/* Twitter Feed */
.twitter-timeline {
    width: 100% !important;
    height: 400px !important;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--dark-blue) 0%, var(--primary-blue) 100%);
    color: var(--white);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer-content {
    font-size: 0.9rem;
    line-height: 1.8;
}

.footer a {
    color: var(--white);
    text-decoration: underline;
}

.footer a:hover {
    opacity: 0.8;
}

.footer-credit {
    font-size: 0.75rem;
    opacity: 0.7;
    margin-top: var(--spacing-sm);
}

/* Responsive Design */
@media (max-width: 968px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        grid-row: 2;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    .header-content {
        flex-wrap: wrap;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: var(--white);
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        transition: right var(--transition-normal);
        padding: var(--spacing-xl) var(--spacing-md);
        z-index: 1001;
    }
    
    .main-nav.active {
        right: 0;
    }
    
    .main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .main-nav a {
        display: block;
        padding: var(--spacing-sm);
        border-left: 3px solid transparent;
    }
    
    .main-nav a::after {
        display: none;
    }
    
    .main-nav a:hover,
    .main-nav a.active {
        border-left-color: var(--primary-blue);
        background: var(--bg-light);
    }
    
    .content-area {
        padding: var(--spacing-md);
    }
    
    .top-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
    }
    
    .logo-section h1 {
        font-size: 1.4rem;
    }
    
    .content-area {
        padding: var(--spacing-sm);
    }
}

/* Anchor Offset for Sticky Header */
h1[id], h2[id], h3[id] {
    scroll-margin-top: 120px;
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }