/* ============================================
   CSS Variables & Theme
   ============================================ */
:root {
    --accent-color: #008afb;
    --accent-hover: #0070cc;
    --main-white: #f5f5f5;
    --main-gray: #373737;
    --main-light-gray: #969696;
    --main-background: #282828;
    --card-background: #373737;
    
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --transition-speed: 0.2s;
    
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    --font-family: Exo, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Verdana, Geneva, Tahoma, sans-serif;
    --max-content-width: 1400px;
}

/* ============================================
   Base Styles
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: var(--font-family);
    background-color: var(--main-background);
    color: var(--main-white);
    color-scheme: dark;
    line-height: 1.6;
    overflow-x: hidden;
}

body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1;
    min-height: 500px;
    padding: var(--spacing-lg) 0;
}

h1, h2, h3, h4, h5, h6 {
    font-style: italic;
    margin-top: 0;
    line-height: 1.2;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }

p {
    margin-top: 0;
}

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

/* ============================================
   Links & Interactions
   ============================================ */
a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color var(--transition-speed), filter var(--transition-speed);
}

a:hover,
a:focus {
    filter: brightness(75%);
    outline: 2px solid transparent;
}

a:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* ============================================
   Header & Navigation
   ============================================ */
#top-bar {
    background-color: var(--main-gray);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) var(--spacing-md);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

#top-bar-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

#top-bar-title a {
    display: flex;
    align-items: center;
}

.logo {
    width: 80px;
    height: 80px;
    transition: transform var(--transition-speed);
}

.logo:hover {
    transform: scale(1.05);
}

.logo-sm {
    display: none;
}

.logo-title {
    margin: 0;
    font-size: 1.5rem;
}

#top-bar-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-md);
    font-size: 1.1rem;
}

#top-bar-menu li {
    display: flex;
    align-items: center;
}

#top-bar-menu a {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-speed);
}

#top-bar-menu a:hover,
#top-bar-menu a:focus {
    background-color: rgba(255, 255, 255, 0.1);
    filter: none;
}

/* ============================================
   Layout Containers
   ============================================ */
.container {
    display: grid;
    gap: var(--spacing-xl);
    padding: 0 var(--spacing-md);
    max-width: var(--max-content-width);
    margin: 0 auto;
}

.container.two-column {
    grid-template-columns: 1fr 1fr;
}

.container.single-column {
    grid-template-columns: 1fr;
    max-width: 900px;
}

.content-left,
.content-right,
.content-center {
    min-width: 0; /* Prevents overflow in grid */
}

/* ============================================
   Loading States
   ============================================ */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    gap: var(--spacing-md);
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.hidden {
    display: none !important;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ============================================
   Project Cards
   ============================================ */
.project-entry {
    background-color: var(--card-background);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    transition: transform var(--transition-speed), box-shadow var(--transition-speed);
}

.project-entry:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.project-head {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.project-thumbnail {
    width: 64px;
    height: 64px;
    border-radius: var(--border-radius);
    background-size: cover;
    background-position: center;
    flex-shrink: 0;
    transition: transform var(--transition-speed);
}

.project-thumbnail:hover {
    transform: scale(1.1);
}

.project-head h2 {
    margin: 0;
}

.project-body p {
    margin: 0;
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.project-links {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.pill {
    background-color: var(--main-background) !important;
    color: var(--main-white) !important;
    border-radius: 16px;
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    white-space: nowrap;
    transition: background-color var(--transition-speed);
}

.pill:hover {
    background-color: rgba(0, 0, 0, 0.5) !important;
}

/* ============================================
   Icons & Media
   ============================================ */
.svg-icon {
    width: 32px;
    height: 32px;
    transition: transform var(--transition-speed);
    display: inline-block;
}

.svg-icon:hover {
    transform: scale(1.1);
}

/* ============================================
   Contact & Social Media
   ============================================ */
.contact-entry {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: background-color var(--transition-speed);
}

.contact-entry:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

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

.social-section h2 {
    margin-top: 0;
}

/* ============================================
   Video Embeds
   ============================================ */
.videos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    border-radius: var(--border-radius);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    border-radius: var(--border-radius);
}

/* ============================================
   Footer
   ============================================ */
#footer {
    text-align: center;
    color: var(--main-light-gray);
    padding: var(--spacing-xl) var(--spacing-md);
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

#footer p {
    margin: var(--spacing-sm) 0;
}

.social-link {
    display: inline-block;
    margin: 0 var(--spacing-sm);
}

/* ============================================
   Utilities
   ============================================ */
.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); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

/* ============================================
   Responsive Design
   ============================================ */
@media screen and (max-width: 768px) {
    #top-bar {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    #top-bar-title {
        justify-content: center;
        width: 100%;
    }
    
    #top-bar-menu {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .container.two-column {
        grid-template-columns: 1fr;
    }
    
    .logo-title {
        display: none;
    }
    
    .logo {
        display: none;
    }
    
    .logo-sm {
        display: block;
    }
    
    .social-grid {
        grid-template-columns: 1fr;
    }
    
    .videos {
        grid-template-columns: 1fr;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.25rem; }
}

@media screen and (max-width: 480px) {
    #top-bar-menu {
        font-size: 1rem;
        gap: var(--spacing-sm);
    }
    
    #top-bar-menu a {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .project-entry {
        padding: var(--spacing-md);
    }
    
    .project-footer {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    #top-bar,
    #footer {
        display: none;
    }
    
    body {
        color: #000;
        background: #fff;
    }
    
    a {
        text-decoration: underline;
    }
}