/* Variables - Default Theme */
:root {
    /* Default Theme - Terminal Green */
    --primary-bg: #000500;
    --secondary-bg: #001500;
    --card-bg: #001800;
    --card-bg-secondary: #000800;
    --row-bg-alt: #001000;
    --text-primary: #0f0;
    --text-secondary: #0a0;
    --text-muted: #060;
    --border-color: #030;
    --accent-color: #0f0;
    --success-color: #0f0;
    --error-color: #f00;
    --card-radius: 0px;
    --card-shadow: none;
    --font-mono: 'Courier New', Courier, monospace;
}

/* Blue Theme */
[data-theme="blue"] {
    --primary-bg: #000814;
    --secondary-bg: #001529;
    --card-bg: #002147;
    --card-bg-secondary: #001833;
    --row-bg-alt: #00152d;
    --text-primary: #47cbff;
    --text-secondary: #0098e6;
    --text-muted: #00598a;
    --border-color: #002c5a;
    --accent-color: #47cbff;
    --success-color: #47cbff;
    --error-color: #ff4d4d;
}

/* Purple Theme */
[data-theme="purple"] {
    --primary-bg: #13001a;
    --secondary-bg: #1f0029;
    --card-bg: #280035;
    --card-bg-secondary: #20002b;
    --row-bg-alt: #1a0022;
    --text-primary: #d359ff;
    --text-secondary: #a64dff;
    --text-muted: #6a00b3;
    --border-color: #39004d;
    --accent-color: #d359ff;
    --success-color: #d359ff;
    --error-color: #ff4d4d;
}

/* Amber Theme */
[data-theme="amber"] {
    --primary-bg: #190f00;
    --secondary-bg: #2e1c00;
    --card-bg: #3d2500;
    --card-bg-secondary: #331f00;
    --row-bg-alt: #261800;
    --text-primary: #ffad0f;
    --text-secondary: #d68c00;
    --text-muted: #804d00;
    --border-color: #4d2e00;
    --accent-color: #ffad0f;
    --success-color: #ffad0f;
    --error-color: #ff4d4d;
}

/* Monochrome Theme */
[data-theme="monochrome"] {
    --primary-bg: #121212;
    --secondary-bg: #1e1e1e;
    --card-bg: #2d2d2d;
    --card-bg-secondary: #252525;
    --row-bg-alt: #1e1e1e;
    --text-primary: #ffffff;
    --text-secondary: #bbbbbb;
    --text-muted: #777777;
    --border-color: #3d3d3d;
    --accent-color: #ffffff;
    --success-color: #bbbbbb;
    --error-color: #ff4d4d;
}

/* Global styles */
body {
    background-color: var(--primary-bg);
    color: var(--text-primary);
    min-height: 100vh;
    font-family: var(--font-mono);
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/* Container and layout */
.container {
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

/* Card styles */
.section-card {
    background-color: var(--card-bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.profile-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 2rem;
    margin-bottom: 2rem;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
}

.project-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--accent-color);
    text-decoration: none;
}

.project-link:hover {
    text-decoration: underline;
}

.project-tags {
    margin-top: 0.5rem;
}

.tag {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    margin-right: 0.5rem;
    font-size: 0.8rem;
}

/* Nav styles */
.nav-container {
    background-color: var(--primary-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0.5rem 0;
    margin-bottom: 1rem;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
}

nav li {
    margin-right: 1.5rem;
}

nav a {
    color: var(--text-primary);
    text-decoration: none;
    text-transform: uppercase;
    font-size: 0.9rem;
}

nav a:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

nav a.active {
    color: var(--text-primary);
    font-weight: bold;
}

/* Theme Selector */
.theme-selector {
    margin-left: auto;
    display: flex;
    align-items: center;
}

.theme-selector select {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.5rem;
    font-family: var(--font-mono);
    cursor: pointer;
}

.theme-selector select:focus {
    outline: none;
    border-color: var(--accent-color);
}

.theme-selector option {
    background-color: var(--card-bg);
    color: var(--text-primary);
}

/* Header elements */
h1, h2, h3, h4 {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
}

h2::after, h3::after, h4::after {
    content: "_";
    animation: blink 1s step-end infinite;
}

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

/* Highlighted projects grid */
.highlighted-projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

/* Search section */
.search-section {
    margin: 2rem 0;
}

.search-container {
    display: flex;
    gap: 1rem;
}

#search-input {
    flex: 1;
    background-color: var(--primary-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: var(--font-mono);
}

#search-input:focus {
    border-color: var(--accent-color);
    outline: none;
}

#search-button {
    background-color: var(--secondary-bg);
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-family: var(--font-mono);
}

#search-button:hover {
    background-color: var(--accent-color);
    color: var(--primary-bg);
}

/* Resource grid layout */
.resource-grid {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

/* Desktop only styles */
@media (min-width: 769px) {
    .category-dropdown {
        display: none !important; /* Force hide on desktop */
    }
    
    .categories ul {
        display: block !important; /* Force show on desktop */
    }
}

/* Categories sidebar */
.categories {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
}

.categories h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.categories ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.categories li {
    margin-bottom: 0.75rem;
}

.categories a {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    padding: 0.5rem;
    transition: all 0.2s;
}

.categories a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.categories li.active a {
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.1);
    border-left: 3px solid var(--accent-color);
    padding-left: calc(0.5rem - 3px);
}

/* Resources container */
#resources-container {
    min-height: 400px;
}

.resource-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.resource-card h3 {
    margin: 0;
}

.resource-card p {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

.resource-card a {
    color: var(--accent-color);
    text-decoration: none;
}

.resource-card a:hover {
    text-decoration: underline;
}

/* Category label */
.category-label {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.8rem;
    padding: 0.2rem 0.5rem;
    margin-bottom: 0.5rem;
    border-radius: 2px;
    text-transform: uppercase;
}

/* Footer */
.site-footer {
    background-color: var(--card-bg);
    color: var(--text-secondary);
    text-align: center;
    padding: 1.5rem;
    margin-top: auto;
}

.site-footer a {
    color: var(--text-primary);
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

/* View handling */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* Loading indicator */
.loading {
    text-align: center;
    padding: 2rem;
}

[aria-busy="true"]::after {
    content: "";
    display: inline-block;
    width: 1rem;
    height: 1rem;
    margin-left: 0.5rem;
    border: 2px solid var(--text-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spinner 0.75s linear infinite;
}

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

/* Markdown content styles */
.markdown-content {
    line-height: 1.6;
}

.markdown-content a {
    color: var(--accent-color);
    text-decoration: none;
}

.markdown-content a:hover {
    text-decoration: underline;
}

.markdown-content code {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 3px;
    font-family: var(--font-mono);
}

.markdown-content pre {
    background-color: var(--primary-bg);
    padding: 1rem;
    border-radius: 3px;
    overflow-x: auto;
    border: 1px solid var(--border-color);
}

/* No results */
.no-results {
    background-color: var(--card-bg);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-size: 1.2rem;
    padding: 0.5rem;
    cursor: pointer;
    margin-right: 1rem;
}

.mobile-menu-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Responsive Breakpoints - Mobile First Approach */
@media (max-width: 768px) {
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    nav {
        position: relative;
    }

    #mainnav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--primary-bg);
        border: 1px solid var(--border-color);
        border-top: none;
        z-index: 100;
        width: 100%;
        display: none;
        padding: 0.5rem 0;
    }
    
    #mainnav.mobile-active {
        display: flex;
    }
    
    #mainnav li {
        margin: 0;
        width: 100%;
    }
    
    #mainnav a {
        padding: 1rem;
        display: block;
        width: 100%;
    }
    
    .theme-selector {
        margin: 0;
        padding: 0.5rem 1rem;
    }
    
    .theme-selector select {
        width: 100%;
        padding: 0.5rem;
    }
    
    /* Resource Grid Layout */
    .resource-grid {
        grid-template-columns: 1fr;
    }
    
    /* Categories sidebar moves to the top on mobile */
    .categories {
        margin-bottom: 1.5rem;
    }

    /* Improve category links touch targets */
    .categories li {
        margin-bottom: 0;
    }
    
    .categories a {
        padding: 0.75rem 0.5rem;
    }
    
    /* Horizontal scrolling category list option */
    .horizontal-categories {
        overflow-x: auto;
        white-space: nowrap;
        padding-bottom: 0.5rem;
        -webkit-overflow-scrolling: touch;
    }
    
    .horizontal-categories ul {
        display: inline-flex;
        flex-wrap: nowrap;
    }
    
    .horizontal-categories li {
        flex: 0 0 auto;
        margin-right: 0.5rem;
    }
    
    /* Search section */
    .search-container {
        flex-direction: column;
    }
    
    #search-input,
    #search-button {
        width: 100%;
        padding: 0.75rem;
    }
    
    /* Project cards and resource cards */
    .highlighted-projects {
        grid-template-columns: 1fr;
    }
    
    .project-card,
    .resource-card {
        padding: 1rem;
    }
    
    /* Better spacing for mobile */
    .container {
        padding: 0.75rem;
    }
    
    h1, h2, h3, h4 {
        word-break: break-word;
    }
}

/* Small mobile screens */
@media (max-width: 480px) {
    .container {
        padding: 0.5rem;
    }
    
    .section-card, .profile-card {
        padding: 1rem;
    }
    
    /* Enlarge touch elements */
    button, select, input {
        min-height: 44px; /* Apple's recommended minimum touch target size */
    }
    
    /* Font size adjustments */
    body {
        font-size: 14px;
    }
}