/**
 * dev.horde.org Unified Stylesheet - Dark Topbar Variant
 *
 * Material-inspired design with dark app bar and responsive multi-column layout
 * Pure CSS with custom properties - no preprocessors needed
 *
 * Copyright 2026 The Horde Project (http://www.horde.org/)
 */

/* ============================================================================
   CSS Custom Properties - Single source of truth for theming
   ============================================================================ */
:root {
    /* Horde Brand Colors */
    --horde-red: #990000;
    --horde-red-light: #cc0000;
    --horde-red-dark: #660000;

    /* Text Colors */
    --text-primary: #2c3e50;
    --text-secondary: #666666;
    --text-meta: #999999;
    --text-inverse: #ffffff;

    /* Background Colors */
    --bg-body: #f5f5f5;
    --bg-card: #ffffff;
    --bg-hover: #f8f9fa;
    --bg-accent: #fef5f5;

    /* Dark Topbar Colors (Material Design inspired) */
    --topbar-bg: #212121;
    --topbar-text: #ffffff;
    --topbar-hover: #424242;

    /* Border Colors */
    --border-light: #e1e4e8;
    --border-medium: #d1d5da;
    --border-dark: #959da5;

    /* Event Type Colors */
    --color-issue: #28a745;
    --color-release: #0366d6;
    --color-push: #6f42c1;
    --color-comment: #f9826c;
    --color-create: #28a745;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.16);
    --shadow-appbar: 0 2px 4px rgba(0, 0, 0, 0.2);

    /* Border Radius */
    --radius-sm: 3px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;

    /* Typography */
    --font-body: Tahoma, Verdana, "Myriad Web", Syntax, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: "SF Mono", Monaco, "Cascadia Code", Consolas, monospace;

    --font-size-sm: 12px;
    --font-size-base: 14px;
    --font-size-md: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-body);
    margin: 0;
    padding: 0;
}

/* ============================================================================
   Typography
   ============================================================================ */
h1 {
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--horde-red);
    text-align: center;
    margin: var(--space-lg) 0 var(--space-md) 0;
    line-height: 1.3;
}

h2 {
    font-size: var(--font-size-md);
    font-weight: 500;
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-md) 0;
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--horde-red);
}

/* First h2 after h1 - reduce top margin for tighter layout */
h1 + h2 {
    margin-top: var(--space-md);
}

h3 {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-sm) 0;
}

p {
    margin: 0 0 var(--space-md) 0;
}

a {
    color: var(--horde-red);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--horde-red-light);
    text-decoration: underline;
}

a:active {
    color: var(--horde-red-dark);
}

/* ============================================================================
   Material-Inspired Dark App Bar
   ============================================================================ */
.topbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0;
    list-style: none;
    margin: 0;
    padding: 0;
    background: var(--topbar-bg);
    box-shadow: var(--shadow-appbar);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.topbar li {
    margin: 0;
}

.topbar a {
    display: block;
    padding: var(--space-md) var(--space-lg);
    color: var(--topbar-text);
    font-weight: 400;
    font-size: var(--font-size-base);
    transition: background-color var(--transition-fast);
    white-space: nowrap;
}

.topbar a:hover {
    background: var(--topbar-hover);
    color: var(--topbar-text);
    text-decoration: none;
}

/* Optional: Highlight first item or add accent */
.topbar li:first-child a {
    font-weight: 500;
}

/* ============================================================================
   Main Container
   ============================================================================ */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-md);
}

/* ============================================================================
   Activity Grid Layout - Two columns on larger screens
   ============================================================================ */
.activity-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

/* Two columns on tablets and up (768px+) */
@media (min-width: 768px) {
    .activity-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Three columns on very large screens (1400px+) */
@media (min-width: 1400px) {
    .activity-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Component list spans full width */
.activity-grid .activity-section.full-width {
    grid-column: 1 / -1;
}

/* ============================================================================
   Activity Sections
   ============================================================================ */
.activity-updated {
    color: var(--text-meta);
    font-size: var(--font-size-sm);
    text-align: right;
    margin-bottom: var(--space-md);
}

.activity-section {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-base);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.activity-section:hover {
    box-shadow: var(--shadow-md);
}

.activity-section h2 {
    margin-top: 0;
    font-size: var(--font-size-md);
}

/* ============================================================================
   Event List & Items
   ============================================================================ */
.event-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    flex: 1;
}

.event-item {
    padding: var(--space-md);
    background: var(--bg-hover);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--border-medium);
    transition: all var(--transition-base);
}

.event-item:hover {
    border-left-color: var(--horde-red);
    box-shadow: var(--shadow-sm);
    transform: translateX(2px);
}

/* Event Type Indicators */
.event-item.type-issue {
    border-left-color: var(--color-issue);
}

.event-item.type-release {
    border-left-color: var(--color-release);
}

.event-item.type-push {
    border-left-color: var(--color-push);
}

.event-item.type-comment {
    border-left-color: var(--color-comment);
}

.event-item.type-create {
    border-left-color: var(--color-create);
}

.event-item.empty {
    color: var(--text-meta);
    font-style: italic;
    border-left-color: var(--border-light);
}

/* Event Content */
.event-title {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
    line-height: 1.4;
    font-size: var(--font-size-sm);
}

.event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xs);
    align-items: center;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.event-repo {
    color: var(--horde-red);
    font-weight: 500;
}

.event-badge {
    display: inline-block;
    padding: 2px var(--space-sm);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-secondary);
}

.event-meta a {
    color: var(--horde-red);
    font-weight: 500;
}

/* ============================================================================
   Component Grid
   ============================================================================ */
.component-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-sm);
    list-style: none;
    padding: 0;
    margin: 0;
}

.component-grid li {
    background: var(--bg-hover);
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    border-left: 3px solid var(--border-light);
}

.component-grid li:hover {
    background: var(--bg-accent);
    border-left-color: var(--horde-red);
    transform: translateX(2px);
    box-shadow: var(--shadow-sm);
}

.component-grid a {
    display: block;
    color: var(--text-primary);
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.component-grid a:hover {
    color: var(--horde-red);
    text-decoration: none;
}

/* ============================================================================
   Legacy Content Sections (Source Code, Mailing Lists, etc.)
   ============================================================================ */
.content-section {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
    box-shadow: var(--shadow-sm);
}

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

.content-section ul {
    list-style: disc;
    padding-left: var(--space-lg);
    margin: 0;
}

.content-section li {
    margin-bottom: var(--space-sm);
}

/* ============================================================================
   Tables (for API References, etc.)
   ============================================================================ */
table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

td, th {
    padding: var(--space-sm) var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-light);
}

th {
    background: var(--bg-hover);
    font-weight: 500;
    color: var(--text-primary);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover {
    background: var(--bg-hover);
}

.apiname {
    border-right: 1px solid var(--border-medium);
    padding-right: var(--space-md);
    text-align: right;
    font-weight: 500;
}

.apidate {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding-left: var(--space-lg);
}

/* ============================================================================
   Back Links & Navigation
   ============================================================================ */
.back-link {
    margin-bottom: var(--space-md);
    font-size: var(--font-size-sm);
}

.back-link a {
    color: var(--text-secondary);
}

.back-link a:hover {
    color: var(--horde-red);
}

/* ============================================================================
   Component Directory - Search and Cards
   ============================================================================ */
.component-search {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    background: var(--bg-card);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.search-input {
    width: 100%;
    padding: var(--space-md);
    font-size: var(--font-size-md);
    font-family: var(--font-body);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    background: var(--bg-hover);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.search-input:focus {
    outline: none;
    border-color: var(--horde-red);
    background: var(--bg-card);
    box-shadow: 0 0 0 3px rgba(153, 0, 0, 0.1);
}

.search-input::placeholder {
    color: var(--text-meta);
}

.search-info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: right;
}

.search-info strong {
    color: var(--horde-red);
    font-weight: 600;
}

.component-directory {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

/* Two columns on tablets */
@media (min-width: 768px) {
    .component-directory {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Three columns on large screens */
@media (min-width: 1200px) {
    .component-directory {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Four columns on very large screens */
@media (min-width: 1600px) {
    .component-directory {
        grid-template-columns: repeat(4, 1fr);
    }
}

.component-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    border-left: 4px solid var(--border-light);
}

.component-card:hover {
    box-shadow: var(--shadow-md);
    border-left-color: var(--horde-red);
    transform: translateY(-2px);
}

.component-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.component-name {
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--horde-red);
    margin: 0;
}

.component-version {
    font-size: var(--font-size-sm);
    color: var(--text-meta);
    font-family: var(--font-mono);
    background: var(--bg-hover);
    padding: 2px var(--space-sm);
    border-radius: var(--radius-sm);
}

.component-description {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.5;
    margin: 0;
}

.component-recent {
    border-top: 1px solid var(--border-light);
    padding-top: var(--space-sm);
}

.component-recent h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-sm) 0;
}

.component-activity-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) 0;
    font-size: var(--font-size-sm);
}

.activity-icon {
    font-size: 14px;
    flex-shrink: 0;
}

.activity-icon.type-issue {
    filter: grayscale(0.3) brightness(1.1);
}

.activity-icon.type-release {
    filter: grayscale(0.3) brightness(1.1);
}

.activity-icon.type-push {
    filter: grayscale(0.3) brightness(1.1);
}

.activity-text {
    flex: 1;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.activity-time {
    color: var(--text-meta);
    font-size: 11px;
    flex-shrink: 0;
}

.component-links {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
    padding-top: var(--space-xs);
    border-top: 1px solid var(--border-light);
}

.component-link {
    font-size: var(--font-size-sm);
    color: var(--horde-red);
    font-weight: 500;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.component-link:hover {
    color: var(--horde-red-light);
    text-decoration: underline;
}

/* ============================================================================
   Component Details Card (individual component pages)
   ============================================================================ */
.component-details-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--horde-red);
}

.component-detail-row {
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--border-light);
}

.component-detail-row:last-child {
    border-bottom: none;
    padding-top: var(--space-md);
}

.component-detail-row strong {
    color: var(--text-primary);
    font-weight: 600;
    margin-right: var(--space-sm);
}

.dependency-list {
    margin: var(--space-sm) 0 0 var(--space-lg);
    padding: 0;
    list-style: disc;
    color: var(--text-secondary);
}

.dependency-list li {
    padding: var(--space-xs) 0;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

/* ============================================================================
   Responsive Design
   ============================================================================ */
@media (max-width: 768px) {
    .container {
        padding: var(--space-sm);
    }

    .topbar {
        flex-direction: column;
        position: relative;
    }

    .topbar li {
        width: 100%;
    }

    .topbar a {
        text-align: center;
        padding: var(--space-md);
    }

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

    .event-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-xs);
    }

    h1 {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 480px) {
    .activity-section,
    .content-section {
        padding: var(--space-md);
    }

    .event-item {
        padding: var(--space-sm);
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */
@media print {
    body {
        background: white;
    }

    .topbar {
        display: none;
    }

    .activity-section,
    .content-section {
        box-shadow: none;
        border: 1px solid var(--border-light);
        page-break-inside: avoid;
    }

    .event-item {
        page-break-inside: avoid;
    }

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

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: var(--font-size-sm);
        color: var(--text-secondary);
    }
}

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

.text-right {
    text-align: right;
}

.text-muted {
    color: var(--text-secondary);
}

.text-small {
    font-size: var(--font-size-sm);
}

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

/* ============================================================================
   Accessibility
   ============================================================================ */
.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;
}

/* Focus styles for keyboard navigation */
a:focus,
button:focus {
    outline: 2px solid var(--horde-red);
    outline-offset: 2px;
}

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