/* Morphium Showcase - Custom CSS */
:root {
    --sidebar-width: 260px;
    --sidebar-bg: #1a1a2e;
    --sidebar-text: #e0e0e0;
    --sidebar-active: #0984e3;
    --sidebar-hover: #2d2d44;
    --accent: #0984e3;
    --accent-light: #74b9ff;
    --success: #00b894;
    --warning: #fdcb6e;
    --danger: #e17055;
    --code-bg: #2d2d44;

    --bg:              #f5f6fa;
    --text:            #2d3436;
    --text-secondary:  #636e72;
    --card-bg:         #fff;
    --border:          #e9ecef;
    --border-light:    #f0f0f0;
    --header-border:   #dfe6e9;
    --hover-bg:        #f8f9fa;
    --input-bg:        #fff;
    --table-header-bg: #f5f6fa;
    --inline-code-bg:  #e9ecef;
    --inline-code-color: #c0392b;
    --blockquote-bg:   #f0f7ff;
    --tag-bg:          #dfe6e9;
    --tag-color:       #636e72;
    --result-bg:       #f8f9fa;
    --chat-bg:         #f8f9fa;
    --doc-hover-bg:    #f0f7ff;
    --pipeline-bg:     #e3f2fd;
    --pipeline-color:  #1565c0;
    --shadow:          rgba(0,0,0,0.08);
    --shadow-hover:    rgba(0,0,0,0.12);
}

[data-theme="dark"] {
    --bg:              #0f0f1a;
    --text:            #e0e0e0;
    --text-secondary:  #a0a0b0;
    --card-bg:         #1a1a2e;
    --border:          #2d2d44;
    --border-light:    #2d2d44;
    --header-border:   #2d2d44;
    --hover-bg:        #22223a;
    --input-bg:        #22223a;
    --table-header-bg: #1a1a2e;
    --inline-code-bg:  #2d2d44;
    --inline-code-color: #f78c6c;
    --blockquote-bg:   rgba(9,132,227,0.1);
    --tag-bg:          #2d2d44;
    --tag-color:       #a0a0b0;
    --result-bg:       #1a1a2e;
    --chat-bg:         #1a1a2e;
    --doc-hover-bg:    rgba(9,132,227,0.1);
    --pipeline-bg:     rgba(9,132,227,0.15);
    --pipeline-color:  #74b9ff;
    --shadow:          rgba(0,0,0,0.3);
    --shadow-hover:    rgba(0,0,0,0.5);
    /* colored tags get muted dark variants */
    --tag-blue-bg: rgba(9,132,227,0.15);  --tag-blue-color: #74b9ff;
    --tag-green-bg: rgba(0,184,148,0.15); --tag-green-color: #55efc4;
    --tag-orange-bg: rgba(225,112,85,0.15); --tag-orange-color: #fab1a0;
    --tag-purple-bg: rgba(162,155,254,0.15); --tag-purple-color: #a29bfe;
    /* alerts get dark variants */
    --alert-success-bg: rgba(0,184,148,0.1); --alert-success-border: rgba(0,184,148,0.3); --alert-success-color: #55efc4;
    --alert-error-bg: rgba(225,112,85,0.1);  --alert-error-border: rgba(225,112,85,0.3);  --alert-error-color: #fab1a0;
    --alert-info-bg: rgba(9,132,227,0.1);    --alert-info-border: rgba(9,132,227,0.3);    --alert-info-color: #74b9ff;
    --alert-warning-bg: rgba(253,203,110,0.1); --alert-warning-border: rgba(253,203,110,0.3); --alert-warning-color: #fdcb6e;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    padding: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1.5rem 1.2rem 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h2 {
    margin: 0;
    font-size: 1.2rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar-header .version {
    font-size: 0.7rem;
    color: var(--accent-light);
    opacity: 0.8;
}

.sidebar-versions {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    margin-top: 0.35rem;
}

.sidebar-versions span {
    font-size: 0.65rem;
    color: rgba(255,255,255,0.45);
    font-family: monospace;
}

/* Sidebar Search */
.sidebar-search {
    padding: 0.6rem 1rem;
    position: relative;
}

.sidebar-search input {
    width: 100%;
    padding: 0.5rem 2rem 0.5rem 1.8rem;
    background: var(--sidebar-hover);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: #fff;
    font-size: 0.82rem;
    outline: none;
    transition: border-color 0.15s, background 0.15s;
}

.sidebar-search input::placeholder {
    color: rgba(255,255,255,0.35);
}

.sidebar-search input:focus {
    border-color: var(--accent);
    background: rgba(255,255,255,0.08);
}

.sidebar-search .search-icon {
    position: absolute;
    left: 1.55rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.75rem;
    opacity: 0.4;
    pointer-events: none;
}

.sidebar-search .search-clear {
    position: absolute;
    right: 1.55rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: rgba(255,255,255,0.4);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 0.2rem;
    line-height: 1;
    display: none;
}

.sidebar-search .search-clear:hover {
    color: #fff;
}

.sidebar-search.has-query .search-clear {
    display: block;
}

/* Nav link visibility during search */
.sidebar nav a.search-hidden {
    display: none;
}

.sidebar nav .nav-section.search-hidden {
    display: none;
}

.sidebar nav a.search-match {
    background: rgba(9, 132, 227, 0.08);
}

.nav-no-results {
    padding: 1rem 1.2rem;
    font-size: 0.82rem;
    color: rgba(255,255,255,0.35);
    font-style: italic;
    display: none;
}

.nav-no-results.visible {
    display: block;
}

.sidebar nav {
    padding: 0.5rem 0;
    flex: 1;
}

.sidebar nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.2rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.88rem;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.sidebar nav a:hover {
    background: var(--sidebar-hover);
    color: #fff;
}

.sidebar nav a.active {
    background: rgba(9, 132, 227, 0.15);
    color: var(--accent-light);
    border-left-color: var(--accent);
    font-weight: 600;
}

.sidebar nav a .nav-icon {
    font-size: 1.1rem;
    width: 1.5rem;
    text-align: center;
}

.sidebar nav .nav-section {
    padding: 0.8rem 1.2rem 0.3rem;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: rgba(255,255,255,0.4);
    font-weight: 600;
}

/* Theme Toggle */
.theme-toggle {
    padding: 0.8rem 1.2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.theme-toggle button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: var(--sidebar-hover);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 6px;
    color: var(--sidebar-text);
    font-size: 0.82rem;
    cursor: pointer;
    transition: all 0.15s;
}

.theme-toggle button:hover {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.theme-toggle .theme-icon {
    font-size: 1rem;
}

.theme-toggle .icon-moon { display: inline; }
.theme-toggle .icon-sun  { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun  { display: inline; }
.theme-toggle .label-dark  { display: inline; }
.theme-toggle .label-light { display: none; }
[data-theme="dark"] .theme-toggle .label-dark  { display: none; }
[data-theme="dark"] .theme-toggle .label-light { display: inline; }

/* Main Content */
.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: 2rem clamp(1.5rem, 3vw, 3rem);
    max-width: 1800px;
}

/* Page Header */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--header-border);
}

.page-header h1 {
    margin: 0 0 0.3rem;
    font-size: 1.8rem;
    color: var(--text);
}

.page-header p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Cards */
.card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px var(--shadow);
    border: 1px solid var(--border);
}

.card h3 {
    margin: 0 0 1rem;
    font-size: 1.1rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

/* Feature Cards (Index Page) */
.feature-card {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 1px 3px var(--shadow);
    border: 1px solid var(--border);
    transition: transform 0.15s, box-shadow 0.15s;
    text-decoration: none;
    color: inherit;
    display: block;
}

.feature-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.feature-card .feature-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.feature-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.05rem;
}

.feature-card p {
    margin: 0 0 0.75rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.feature-card .tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

/* Tags / Badges */
.tag {
    display: inline-block;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-size: 0.72rem;
    font-weight: 600;
    background: var(--tag-bg);
    color: var(--tag-color);
}

.tag-blue { background: var(--tag-blue-bg, #e3f2fd); color: var(--tag-blue-color, #1565c0); }
.tag-green { background: var(--tag-green-bg, #e8f5e9); color: var(--tag-green-color, #2e7d32); }
.tag-orange { background: var(--tag-orange-bg, #fff3e0); color: var(--tag-orange-color, #e65100); }
.tag-purple { background: var(--tag-purple-bg, #f3e5f5); color: var(--tag-purple-color, #7b1fa2); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
}
.btn-primary:hover { background: #0773c5; }

.btn-success {
    background: var(--success);
    color: #fff;
}
.btn-success:hover { background: #00a381; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #c0392b; }

.btn-warning {
    background: var(--warning);
    color: var(--text);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--header-border);
    color: var(--text-secondary);
}
.btn-outline:hover {
    background: var(--bg);
    border-color: var(--text-secondary);
}

.btn-sm {
    padding: 0.3rem 0.7rem;
    font-size: 0.8rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--header-border);
    border-radius: 6px;
    font-size: 0.88rem;
    color: var(--text);
    background: var(--input-bg);
    transition: border-color 0.15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(9,132,227,0.1);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

/* Tables */
.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

table th {
    text-align: left;
    padding: 0.6rem 0.8rem;
    background: var(--table-header-bg);
    border-bottom: 2px solid var(--header-border);
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

table td {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border-light);
}

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

/* Code Blocks */
.code-block {
    background: var(--code-bg);
    color: #e0e0e0;
    padding: 1rem 1.2rem;
    border-radius: 6px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
    line-height: 1.6;
    overflow-x: auto;
    margin: 0.5rem 0;
}

.code-block .keyword { color: #c792ea; }
.code-block .annotation { color: #ffcb6b; }
.code-block .string { color: #c3e88d; }
.code-block .comment { color: #676e95; }
.code-block .type { color: #82aaff; }
.code-block .number { color: #f78c6c; }

/* Result / Output */
.result-box {
    background: var(--result-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    font-family: monospace;
    font-size: 0.85rem;
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
}

.result-success { border-left: 3px solid var(--success); }
.result-error { border-left: 3px solid var(--danger); }
.result-info { border-left: 3px solid var(--accent); }

/* Stats */
.stats-row {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.stat {
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* HTMX Indicators */
.htmx-indicator {
    display: none;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    display: inline-block;
}

.spinner {
    display: inline-block;
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--header-border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Alert Messages */
.alert {
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.88rem;
}

.alert-success { background: var(--alert-success-bg, #e8f5e9); color: var(--alert-success-color, #2e7d32); border: 1px solid var(--alert-success-border, #c8e6c9); }
.alert-error { background: var(--alert-error-bg, #ffebee); color: var(--alert-error-color, #c62828); border: 1px solid var(--alert-error-border, #ffcdd2); }
.alert-info { background: var(--alert-info-bg, #e3f2fd); color: var(--alert-info-color, #1565c0); border: 1px solid var(--alert-info-border, #bbdefb); }
.alert-warning { background: var(--alert-warning-bg, #fff3e0); color: var(--alert-warning-color, #e65100); border: 1px solid var(--alert-warning-border, #ffe0b2); }

/* Chat Messages (Messaging page) */
.chat-container {
    max-height: 400px;
    overflow-y: auto;
    padding: 1rem;
    background: var(--chat-bg);
    border-radius: 6px;
    border: 1px solid var(--border);
}

.chat-message {
    margin-bottom: 0.75rem;
    padding: 0.6rem 1rem;
    border-radius: 8px;
    max-width: 80%;
    font-size: 0.88rem;
}

.chat-message.sent {
    background: var(--accent);
    color: #fff;
    margin-left: auto;
}

.chat-message.received {
    background: var(--card-bg);
    border: 1px solid var(--border);
}

.chat-meta {
    font-size: 0.72rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--header-border);
    margin-bottom: 1.5rem;
}

.tab {
    padding: 0.6rem 1.2rem;
    cursor: pointer;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    transition: all 0.15s;
    background: none;
    border-top: none;
    border-left: none;
    border-right: none;
}

.tab:hover { color: var(--accent); }
.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

/* API Comparison Tabs (inline code tabs) */
.api-comparison {
    margin: 1rem 0;
    border: 1px solid var(--header-border);
    border-radius: 6px;
    overflow: hidden;
}
.api-comparison-tabs {
    display: flex;
    gap: 0;
    background: var(--sidebar-bg);
    border-bottom: 1px solid var(--header-border);
}
.api-tab {
    padding: 0.5rem 1rem;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--sidebar-text);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}
.api-tab:hover { color: var(--accent-light); }
.api-tab.active {
    color: #fff;
    background: rgba(9, 132, 227, 0.15);
    border-bottom-color: var(--accent);
}
.api-tab-panel {
    padding: 0;
}
.api-tab-panel .code-card {
    border: none;
    border-radius: 0;
    margin: 0;
}
.api-tab-panel .code-card + .callout-list {
    padding: 0.5rem 1rem 0.75rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar { width: 200px; }
    .main-content { margin-left: 200px; padding: 1rem; }
    .card-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}

/* Toggle / Switch */
.toggle-group {
    display: inline-flex;
    border: 1px solid var(--header-border);
    border-radius: 6px;
    overflow: hidden;
}

.toggle-group button {
    padding: 0.4rem 0.8rem;
    border: none;
    background: var(--card-bg);
    color: var(--text);
    font-size: 0.82rem;
    cursor: pointer;
    border-right: 1px solid var(--header-border);
}

.toggle-group button:last-child { border-right: none; }
.toggle-group button.active {
    background: var(--accent);
    color: #fff;
}

/* JSON display */
.json-view {
    background: #1e1e2e;
    color: #cdd6f4;
    padding: 1rem;
    border-radius: 6px;
    font-family: monospace;
    font-size: 0.82rem;
    overflow-x: auto;
    white-space: pre;
}

/* Pipeline steps */
.pipeline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
    margin: 1rem 0;
}

.pipeline-step {
    background: var(--pipeline-bg);
    color: var(--pipeline-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
}

.pipeline-arrow {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Documentation Content (rendered Markdown) */
.doc-content h1 { font-size: 1.6rem; margin: 1.5rem 0 0.75rem; color: var(--text); border-bottom: 2px solid var(--header-border); padding-bottom: 0.5rem; }
.doc-content h2 { font-size: 1.3rem; margin: 1.3rem 0 0.6rem; color: var(--text); }
.doc-content h3 { font-size: 1.1rem; margin: 1.1rem 0 0.5rem; color: var(--text); }
.doc-content h4 { font-size: 1rem; margin: 1rem 0 0.4rem; color: var(--text-secondary); }
.doc-content p { margin: 0.5rem 0; line-height: 1.7; }
.doc-content ul, .doc-content ol { padding-left: 1.5rem; margin: 0.5rem 0; }
.doc-content li { margin: 0.3rem 0; line-height: 1.6; }
.doc-content a { color: var(--accent); text-decoration: none; }
.doc-content a:hover { text-decoration: underline; }

.doc-content pre {
    background: var(--code-bg);
    color: #e0e0e0;
    padding: 1rem 1.2rem;
    border-radius: 6px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.82rem;
    line-height: 1.6;
    overflow-x: auto;
    margin: 0.75rem 0;
}

.doc-content code {
    background: var(--inline-code-bg);
    color: var(--inline-code-color);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}

.doc-content pre code {
    background: none;
    color: inherit;
    padding: 0;
}

.doc-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 0.75rem 0;
    font-size: 0.85rem;
}

.doc-content table th {
    text-align: left;
    padding: 0.6rem 0.8rem;
    background: var(--table-header-bg);
    border-bottom: 2px solid var(--header-border);
    font-weight: 600;
    color: var(--text-secondary);
}

.doc-content table td {
    padding: 0.6rem 0.8rem;
    border-bottom: 1px solid var(--border-light);
}

.doc-content table tr:hover td {
    background: var(--hover-bg);
}

.doc-content blockquote {
    border-left: 4px solid var(--accent);
    margin: 0.75rem 0;
    padding: 0.5rem 1rem;
    background: var(--blockquote-bg);
    color: var(--text);
}

.doc-content blockquote p { margin: 0.25rem 0; }

.doc-content hr {
    border: none;
    border-top: 1px solid var(--header-border);
    margin: 1.5rem 0;
}

/* Documentation Hub Cards */
.doc-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.doc-card-link {
    display: block;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    text-decoration: none;
    color: inherit;
    transition: all 0.15s;
}

.doc-card-link:hover {
    border-color: var(--accent);
    background: var(--doc-hover-bg);
    transform: translateY(-1px);
}

.doc-card-title {
    display: block;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}

.doc-card-slug {
    display: block;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.2rem;
    font-family: monospace;
}

/* Doc Links List (Related Documentation) */
.doc-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.doc-links-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
    font-size: 0.88rem;
}

.doc-links-list li:last-child { border-bottom: none; }

.doc-links-list a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
}

.doc-links-list a:hover { text-decoration: underline; }

.doc-link-desc {
    color: var(--text-secondary);
    font-size: 0.82rem;
}

/* Breadcrumb */
.breadcrumb {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

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

.breadcrumb a:hover { text-decoration: underline; }

/* Service Code Card */
.service-code-card .code-block {
    margin-top: 0.75rem;
}

/* ===========================================
   Tooltip System
   =========================================== */
.has-tooltip {
    position: relative;
    cursor: help;
}

.tooltip-content {
    display: none;
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--code-bg);
    color: #e0e0e0;
    padding: 0.6rem 0.8rem;
    border-radius: 6px;
    font-size: 0.78rem;
    font-weight: 400;
    line-height: 1.5;
    white-space: normal;
    width: max-content;
    max-width: 320px;
    z-index: 200;
    box-shadow: 0 4px 12px rgba(0,0,0,0.25);
    text-align: left;
}

.tooltip-content::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--code-bg);
}

.has-tooltip:hover .tooltip-content,
.has-tooltip:focus .tooltip-content {
    display: block;
}

/* Compatibility indicators inside tooltips */
.compat-line {
    display: flex;
    gap: 0.35rem;
    margin-top: 0.5rem;
    padding-top: 0.45rem;
    border-top: 1px solid rgba(255,255,255,0.12);
}
.compat-ok, .compat-no, .compat-warn {
    font-size: 0.7rem;
    font-weight: 600;
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    white-space: nowrap;
}
.compat-ok {
    background: rgba(0,184,148,0.2);
    color: #55efc4;
}
.compat-ok::before { content: "\2713\00a0"; }
.compat-no {
    background: rgba(225,112,85,0.25);
    color: #fab1a0;
}
.compat-no::before { content: "\2717\00a0"; }
.compat-warn {
    background: rgba(253,203,110,0.2);
    color: #ffeaa7;
}
.compat-warn::before { content: "\26A0\00a0"; }

/* ===========================================
   Enhanced Code Blocks (code-card)
   =========================================== */
.code-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 1.5rem;
}

.code-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--table-header-bg);
    border-bottom: 1px solid var(--border);
    font-size: 0.82rem;
}

.code-card-title {
    font-weight: 600;
    color: var(--text);
    flex: 1;
}

.code-card-lang {
    font-size: 0.7rem;
}

.code-copy-btn {
    margin-left: auto;
    padding: 0.2rem 0.6rem;
    font-size: 0.75rem;
}

.code-copy-btn.copied {
    background: var(--success);
    color: #fff;
    border-color: var(--success);
}

.code-card .code-block {
    margin: 0;
    border-radius: 0;
    counter-reset: line;
    line-height: 1;
    padding: 0.75rem 1rem;
}

.code-card .code-block pre {
    margin: 0;
}

.code-card .code-block .line {
    display: block;
    padding-left: 3.5rem;
    position: relative;
    min-height: 1em;
}

.code-card .code-block .line::before {
    counter-increment: line;
    content: counter(line);
    position: absolute;
    left: 0;
    width: 2.5rem;
    text-align: right;
    color: #676e95;
    font-size: 0.75rem;
    padding-right: 0.5rem;
    user-select: none;
}

/* Code callout badges (numbered references like Quarkus docs) */
.code-callout {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.6em;
    height: 1.6em;
    padding: 0 0.3em;
    border-radius: 50%;
    background: var(--accent);
    color: #fff;
    font-size: 0.75em;
    font-weight: 700;
    line-height: 1;
    margin-left: 0.5em;
    vertical-align: middle;
    user-select: none;
    flex-shrink: 0;
}

[data-theme="dark"] .code-callout {
    background: #74b9ff;
    color: #0f0f1a;
}

.callout-list {
    margin: 0.75rem 0 1.5rem;
    padding: 0.75rem 1rem;
    background: var(--hover-bg);
    border-radius: 0.5rem;
    border: 1px solid var(--border);
    font-size: 0.875rem;
    line-height: 1.5;
}

.callout-item {
    position: relative;
    padding: 0.3rem 0 0.3rem 2.4em;
}

.callout-item .code-callout {
    position: absolute;
    left: 0;
    top: 0.4rem;
    margin-left: 0;
}

[data-theme="dark"] .callout-list {
    background: rgba(255,255,255,0.03);
    border-color: var(--border);
}

/* ===========================================
   ER Diagrams
   =========================================== */
.er-diagram {
    margin: 1.5rem 0;
}

.er-entities {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: flex-start;
    justify-content: center;
}

.er-entity {
    border: 2px solid var(--border);
    border-radius: 8px;
    min-width: 200px;
    max-width: 340px;
    background: var(--card-bg);
    overflow: hidden;
}

.er-entity-name {
    padding: 0.5rem 0.75rem;
    font-weight: 700;
    font-size: 0.9rem;
    border-bottom: 2px solid;
}

.er-entity.er-type-entity .er-entity-name {
    background: var(--tag-blue-bg, #e3f2fd);
    color: var(--tag-blue-color, #1565c0);
    border-bottom-color: var(--tag-blue-color, #1565c0);
}

.er-entity.er-type-embedded .er-entity-name {
    background: var(--tag-green-bg, #e8f5e9);
    color: var(--tag-green-color, #2e7d32);
    border-bottom-color: var(--tag-green-color, #2e7d32);
}

.er-entity.er-type-reference .er-entity-name {
    background: var(--tag-orange-bg, #fff3e0);
    color: var(--tag-orange-color, #e65100);
    border-bottom-color: var(--tag-orange-color, #e65100);
}

.er-entity-fields {
    padding: 0.5rem 0.75rem;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.78rem;
    line-height: 1.6;
}

.er-entity-fields .er-field {
    display: flex;
    gap: 0.3rem;
}

.er-field-name {
    color: var(--text);
    font-weight: 600;
}

.er-field-type {
    color: var(--text-secondary);
}

.er-field-annotation {
    color: var(--warning);
    font-size: 0.72rem;
}

.er-connector {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.5rem 0;
    align-self: center;
}

.er-connector-label {
    background: var(--tag-bg);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.72rem;
    white-space: nowrap;
}

.er-legend {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    margin-top: 1rem;
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.er-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.er-legend-color {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

.er-color-entity { background: var(--tag-blue-color, #1565c0); }
.er-color-embedded { background: var(--tag-green-color, #2e7d32); }
.er-color-reference { background: var(--tag-orange-color, #e65100); }

/* Hub layout: primary entity left, targets stacked right */
.er-entities.er-hub-layout {
    flex-wrap: nowrap;
    gap: 0;
}
.er-hub-primary {
    flex-shrink: 0;
}
.er-hub-targets {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.er-hub-target {
    display: flex;
    align-items: center;
    gap: 1rem;
}
.er-hub-target .er-connector {
    padding: 0;
}

/* ===========================================
   Learn Sections
   =========================================== */
.learn-section {
    margin-bottom: 2rem;
}

.learn-section h2 {
    font-size: 1.15rem;
    margin: 0 0 0.75rem;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.learn-intro {
    font-size: 0.92rem;
    line-height: 1.7;
    color: var(--text);
    margin-bottom: 1rem;
}

.learn-intro p {
    margin: 0.5rem 0;
}

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

.prereq-list li {
    padding: 0.4rem 0 0.4rem 1.2rem;
    position: relative;
    font-size: 0.88rem;
    line-height: 1.6;
    border-bottom: 1px solid var(--border-light);
}

.prereq-list li:last-child {
    border-bottom: none;
}

.prereq-list li::before {
    content: "\2022";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.feature-tags-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0.75rem 0;
}

/* ===========================================
   Tab Extensions for HTMX
   =========================================== */
#tab-content {
    min-height: 300px;
    transition: opacity 0.15s;
}

.htmx-request #tab-content,
#tab-content.htmx-swapping {
    opacity: 0.5;
}

/* Demo-specific styles */
.demo-context {
    background: var(--blockquote-bg);
    border-left: 4px solid var(--accent);
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.88rem;
    border-radius: 0 6px 6px 0;
    color: var(--text);
}

.demo-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

/* Inline code in prose */
.learn-section code {
    background: var(--inline-code-bg);
    color: var(--inline-code-color);
    padding: 0.1rem 0.35rem;
    border-radius: 3px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.85em;
}

/* ===========================================
   Responsive: ER + Tabs
   =========================================== */
@media (max-width: 768px) {
    .er-entities {
        flex-direction: column;
        align-items: stretch;
    }
    .er-entity {
        max-width: 100%;
    }
    .er-connector {
        transform: rotate(90deg);
        padding: 0.25rem 0;
    }
    .er-entities.er-hub-layout {
        flex-direction: column;
        align-items: stretch;
    }
    .er-hub-targets {
        align-items: stretch;
    }
    .er-hub-target {
        flex-direction: column;
    }
    .er-hub-target .er-connector {
        transform: rotate(90deg);
        padding: 0.25rem 0;
    }
    .tabs {
        flex-wrap: wrap;
    }
}

/* ===========================================
   Hero Section (Landing Page)
   =========================================== */
.hero {
    text-align: center;
    padding: 3rem 2rem 2.5rem;
    border-bottom: 2px solid var(--header-border);
    margin-bottom: 2.5rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin: 0 0 0.5rem;
    color: var(--text);
}

.hero .tagline {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin: 0 0 0.3rem;
}

.hero .sub-tagline {
    font-size: 0.92rem;
    color: var(--text-secondary);
    opacity: 0.8;
    margin: 0 0 1.25rem;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 0.75rem;
}

.hero .version-badge {
    display: inline-block;
    font-size: 0.75rem;
    background: var(--tag-bg);
    color: var(--tag-color);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
}

/* ===========================================
   Value Propositions Strip
   =========================================== */
.value-props {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.value-prop {
    text-align: center;
    padding: 1.25rem;
}

.value-prop .value-prop-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--accent);
}

.value-prop h3 {
    font-size: 0.95rem;
    margin: 0 0 0.3rem;
    color: var(--text);
}

.value-prop p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

@media (max-width: 768px) {
    .value-props { grid-template-columns: repeat(2, 1fr); }
}

/* ===========================================
   Capability / Challenge Sections (Learn Tabs)
   =========================================== */
.capability-section {
    background: var(--blockquote-bg);
    border-left: 4px solid var(--accent);
    border-radius: 0 8px 8px 0;
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.5rem;
}

.capability-section h2 {
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
    color: var(--accent);
}

.capability-section p {
    margin: 0;
    font-size: 0.92rem;
    line-height: 1.7;
}

.challenge-section {
    background: var(--hover-bg);
    border-left: 4px solid var(--warning);
    border-radius: 0 8px 8px 0;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.challenge-section h2 {
    font-size: 0.95rem;
    margin: 0 0 0.4rem;
    color: var(--warning);
}

.challenge-section p {
    margin: 0;
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* ===========================================
   "Under the Hood" Component (Demo Tabs)
   =========================================== */
.under-the-hood {
    background: var(--code-bg);
    border-radius: 8px;
    overflow: hidden;
    margin: 1rem 0 1.5rem;
}

.under-the-hood-header {
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.05);
    font-weight: 600;
    font-size: 0.82rem;
    color: #e0e0e0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.under-the-hood-body {
    padding: 0.75rem 1rem;
}

.under-the-hood-step {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    padding: 0.3rem 0;
}

.under-the-hood-step + .under-the-hood-step {
    border-top: 1px solid rgba(255,255,255,0.06);
}

.step-label {
    font-weight: 600;
    min-width: 7rem;
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    color: var(--accent-light);
    flex-shrink: 0;
}

.under-the-hood-step code {
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 0.8rem;
    color: #e0e0e0;
    background: none;
    padding: 0;
    word-break: break-all;
}

/* ===========================================
   Feature Groups (Landing Page)
   =========================================== */
.feature-group {
    margin-bottom: 2.5rem;
}

.feature-group-header {
    margin-bottom: 1rem;
}

.feature-group-header h2 {
    font-size: 1.15rem;
    letter-spacing: -0.01em;
    margin: 0 0 0.25rem;
    color: var(--text);
}

.feature-group-header p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
}

/* ===========================================
   CSS Icon System (replaces emojis)
   =========================================== */
.nav-icon-css {
    display: inline-block;
    width: 1.1rem;
    height: 1.1rem;
    flex-shrink: 0;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.7;
}

.sidebar nav a:hover .nav-icon-css,
.sidebar nav a.active .nav-icon-css {
    opacity: 1;
}

/* Monochrome SVG icons — files in /images/icons/ */
.icon-home    { background-image: url("/images/icons/home.svg"); }
.icon-data    { background-image: url("/images/icons/data.svg"); }
.icon-blog    { background-image: url("/images/icons/blog.svg"); }
.icon-poly    { background-image: url("/images/icons/poly.svg"); }
.icon-query   { background-image: url("/images/icons/query.svg"); }
.icon-jakarta { background-image: url("/images/icons/jakarta.svg"); }
.icon-chart   { background-image: url("/images/icons/chart.svg"); }
.icon-import  { background-image: url("/images/icons/import.svg"); }
.icon-geo     { background-image: url("/images/icons/geo.svg"); }
.icon-msg     { background-image: url("/images/icons/msg.svg"); }
.icon-tx      { background-image: url("/images/icons/tx.svg"); }
.icon-audit   { background-image: url("/images/icons/audit.svg"); }
.icon-health  { background-image: url("/images/icons/health.svg"); }
.icon-docs    { background-image: url("/images/icons/docs.svg"); }

/* ===========================================
   Navigation Hints
   =========================================== */
.nav-hint {
    display: block;
    font-size: 0.65rem;
    color: rgba(255,255,255,0.3);
    font-weight: 400;
    line-height: 1.3;
    margin-top: 0.1rem;
}

/* ===========================================
   Typography Refinements
   =========================================== */
.sidebar-header h2 {
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: -0.01em;
}

.page-header h1,
.hero h1,
.feature-group-header h2 {
    letter-spacing: -0.01em;
}