/* Torpi Mobile-First Styles */

:root {
    /* Color palette */
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-card: #252542;
    --text-primary: #e8e8f0;
    --text-secondary: #a0a0b8;
    --accent-primary: #6c63ff;
    --accent-secondary: #4ecdc4;
    --border-color: #3a3a5a;
    --error-color: #ff6b6b;
    --success-color: #4ecdc4;
    
    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    
    /* Layout */
    --nav-height: 56px;
    --header-height: 48px;
    --max-content-width: 800px;
    
    /* Animation */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Hide scrollbar but allow scrolling */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 2px;
}

/* Touch-friendly focus states */
:focus {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

/* Button base */
button {
    font-family: inherit;
    font-size: var(--font-size-md);
    border: none;
    background: none;
    cursor: pointer;
    color: inherit;
    -webkit-tap-highlight-color: transparent;
}

/* Link base */
a {
    color: var(--accent-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Card component */
.card {
    background: var(--bg-card);
    border-radius: 12px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:active {
    transform: scale(0.98);
}

/* Tag chip */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: 16px;
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-right: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
}

.tag-category {
    color: var(--accent-secondary);
    margin-right: var(--spacing-xs);
}

/* Input fields */
input, textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: var(--font-size-md);
    transition: border-color var(--transition-fast);
}

input:focus, textarea:focus {
    border-color: var(--accent-primary);
    outline: none;
}

input::placeholder, textarea::placeholder {
    color: var(--text-secondary);
}

/* Loading spinner */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Error message */
.error {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid var(--error-color);
    color: var(--error-color);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

/* Mobile navigation */
.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom);
    z-index: 100;
}

.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-sm);
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    min-width: 64px;
}

.nav-item.active {
    color: var(--accent-primary);
}

.nav-item svg {
    width: 24px;
    height: 24px;
    margin-bottom: var(--spacing-xs);
}

.nav-item span {
    font-size: var(--font-size-sm);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 var(--spacing-md);
    z-index: 100;
}

.header-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    flex: 1;
}

/* Main content area */
.content {
    position: fixed;
    top: var(--header-height);
    bottom: var(--nav-height);
    left: 0;
    right: 0;
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    padding: var(--spacing-md);
}

/* Markdown content styling */
.markdown h1 { font-size: var(--font-size-xl); margin: var(--spacing-lg) 0 var(--spacing-md); }
.markdown h2 { font-size: var(--font-size-lg); margin: var(--spacing-md) 0 var(--spacing-sm); }
.markdown h3 { font-size: var(--font-size-md); margin: var(--spacing-md) 0 var(--spacing-sm); font-weight: 600; }
.markdown p { margin-bottom: var(--spacing-md); }
.markdown ul, .markdown ol { padding-left: var(--spacing-lg); margin-bottom: var(--spacing-md); }
.markdown li { margin-bottom: var(--spacing-xs); }
.markdown code {
    background: var(--bg-secondary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, monospace;
    font-size: var(--font-size-sm);
}
.markdown pre {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}
.markdown pre code {
    background: none;
    padding: 0;
}
.markdown blockquote {
    border-left: 3px solid var(--accent-primary);
    padding-left: var(--spacing-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Search bar */
.search-bar {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.search-bar input {
    flex: 1;
}

.search-bar button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--accent-primary);
    color: white;
    border-radius: 8px;
    font-weight: 500;
}

/* Action button */
.action-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    transition: background var(--transition-fast);
}

.action-btn:hover {
    background: var(--bg-card);
}

/* Relation list */
.relations {
    margin-top: var(--spacing-lg);
}

.relations h3 {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

.relation-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: 8px;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.relation-item:hover {
    background: var(--bg-card);
    text-decoration: none;
}

/* Responsive adjustments */
@media (min-width: 768px) {
    .content {
        max-width: var(--max-content-width);
        margin: 0 auto;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .mobile-nav {
        max-width: var(--max-content-width);
        left: 50%;
        transform: translateX(-50%);
        border-radius: 12px 12px 0 0;
    }
    
    .header {
        max-width: var(--max-content-width);
        left: 50%;
        transform: translateX(-50%);
        border-radius: 0 0 12px 12px;
    }
}

/* ============================================
   Rendered Markdown Styles
   ============================================ */

.rendered-markdown {
    line-height: 1.7;
    word-wrap: break-word;
}

.rendered-markdown h1,
.rendered-markdown h2,
.rendered-markdown h3,
.rendered-markdown h4,
.rendered-markdown h5,
.rendered-markdown h6 {
    margin-top: 1.5em;
    margin-bottom: 0.5em;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

.rendered-markdown h1:first-child,
.rendered-markdown h2:first-child,
.rendered-markdown h3:first-child {
    margin-top: 0;
}

.rendered-markdown h1 { font-size: 1.75rem; }
.rendered-markdown h2 { font-size: 1.5rem; }
.rendered-markdown h3 { font-size: 1.25rem; }
.rendered-markdown h4 { font-size: 1.1rem; }

.rendered-markdown p {
    margin: 1em 0;
}

.rendered-markdown ul,
.rendered-markdown ol {
    margin: 1em 0;
    padding-left: 2em;
}

.rendered-markdown li {
    margin: 0.5em 0;
}

.rendered-markdown blockquote {
    margin: 1em 0;
    padding: 0.5em 1em;
    border-left: 4px solid var(--accent-primary);
    background: var(--bg-secondary);
    font-style: italic;
    border-radius: 0 8px 8px 0;
}

.rendered-markdown pre {
    margin: 1em 0;
    padding: 1em;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow-x: auto;
    font-size: 0.875rem;
    max-width: 100%;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.rendered-markdown code {
    font-family: 'Fira Code', 'Monaco', 'Consolas', monospace;
    background: var(--bg-secondary);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-size: 0.875em;
    word-break: break-word;
}

.rendered-markdown pre code {
    background: transparent;
    padding: 0;
    white-space: pre-wrap;
    word-break: break-word;
}

.rendered-markdown table {
    width: 100%;
    margin: 1em 0;
    border-collapse: collapse;
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.rendered-markdown table thead,
.rendered-markdown table tbody,
.rendered-markdown table tr {
    display: table;
    width: 100%;
    table-layout: fixed;
}

.rendered-markdown th,
.rendered-markdown td {
    padding: 0.75em;
    border: 1px solid var(--border-color);
    text-align: left;
    word-wrap: break-word;
}

.rendered-markdown th {
    background: var(--bg-secondary);
    font-weight: 600;
}

.rendered-markdown a {
    color: var(--accent-primary);
    text-decoration: underline;
}

.rendered-markdown a:hover {
    color: var(--accent-secondary);
}

.rendered-markdown img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.rendered-markdown hr {
    margin: 2em 0;
    border: none;
    border-top: 1px solid var(--border-color);
}

/* ============================================
   RTL (Right-to-Left) Support
   ============================================ */

.rendered-markdown.rtl,
.rtl .rendered-markdown {
    direction: rtl;
    text-align: right;
    font-family: 'Vazirmatn', 'Tahoma', sans-serif;
}

.rendered-markdown.rtl blockquote {
    border-left: none;
    border-right: 4px solid var(--accent-primary);
    border-radius: 8px 0 0 8px;
    padding-left: 0;
    padding-right: 1em;
}

.rendered-markdown.rtl ul,
.rendered-markdown.rtl ol {
    padding-left: 0;
    padding-right: 2em;
}

.rendered-markdown.rtl th,
.rendered-markdown.rtl td {
    text-align: right;
}

/* LTR explicit (for mixed content) */
.rendered-markdown.ltr {
    direction: ltr;
    text-align: left;
}

/* ============================================
   Print Styles (PDF Export)
   ============================================ */

@media print {
    /* Reset page for clean printing */
    html, body {
        height: auto !important;
        overflow: visible !important;
        background: white !important;
        color: black !important;
        font-size: 12pt !important;
    }

    /* Hide all UI elements */
    .header,
    .mobile-nav,
    mobile-nav,
    .header-back,
    .header-user,
    .user-menu,
    .search-bar,
    .edit-toolbar,
    .copy-content-btn,
    .print-btn,
    .id-badge,
    .relations,
    relation-graph,
    .meta,
    .tags,
    .tag,
    .loading,
    .spinner,
    button {
        display: none !important;
    }

    /* Reset card styling for paper */
    .asset-card {
        background: white !important;
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
        max-width: none !important;
        border-radius: 0 !important;
    }

    /* Asset title styling for print */
    .asset-title {
        color: black !important;
        font-size: 18pt !important;
        margin-bottom: 16pt !important;
        border-bottom: 1px solid #ccc;
        padding-bottom: 8pt;
    }

    /* Content area reset */
    .asset-content,
    .asset-content.rendered-markdown {
        color: black !important;
        background: white !important;
        max-width: none !important;
    }

    /* Markdown heading colors */
    .rendered-markdown h1,
    .rendered-markdown h2,
    .rendered-markdown h3,
    .rendered-markdown h4,
    .rendered-markdown h5,
    .rendered-markdown h6,
    .asset-content.rendered-markdown h1,
    .asset-content.rendered-markdown h2,
    .asset-content.rendered-markdown h3,
    .asset-content.rendered-markdown h4,
    .asset-content.rendered-markdown h5,
    .asset-content.rendered-markdown h6 {
        color: black !important;
    }

    /* Code blocks for print */
    .rendered-markdown pre,
    .asset-content.rendered-markdown pre {
        background: #f5f5f5 !important;
        color: black !important;
        border: 1px solid #ddd !important;
        page-break-inside: avoid;
    }

    .rendered-markdown code,
    .asset-content.rendered-markdown code {
        background: #f0f0f0 !important;
        color: black !important;
    }

    /* Blockquotes for print */
    .rendered-markdown blockquote,
    .asset-content.rendered-markdown blockquote {
        background: #f9f9f9 !important;
        border-left-color: #666 !important;
        color: #333 !important;
    }

    /* RTL blockquotes */
    .rendered-markdown.rtl blockquote,
    .asset-content.rendered-markdown.rtl blockquote {
        border-right-color: #666 !important;
    }

    /* Tables for print */
    .rendered-markdown table,
    .asset-content.rendered-markdown table {
        border-color: #ccc !important;
    }

    .rendered-markdown th,
    .asset-content.rendered-markdown th {
        background: #f0f0f0 !important;
        color: black !important;
    }

    .rendered-markdown td,
    .asset-content.rendered-markdown td {
        border-color: #ccc !important;
        color: black !important;
    }

    /* Links show URL in print */
    .rendered-markdown a,
    .asset-content.rendered-markdown a {
        color: #0066cc !important;
        text-decoration: underline !important;
    }

    /* Avoid page breaks inside important elements */
    .rendered-markdown pre,
    .rendered-markdown blockquote,
    .rendered-markdown table,
    .rendered-markdown img {
        page-break-inside: avoid;
    }

    /* Allow page breaks before headings */
    .rendered-markdown h1,
    .rendered-markdown h2,
    .rendered-markdown h3 {
        page-break-after: avoid;
    }
}