/* ==============================================================================
   CADs, by V.Michl - Main Stylesheet
   Supports Light (Default) and Dark Themes via CSS Variables
   ============================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Semi+Condensed:ital,wght@0,400;0,500;0,600;0,700;1,400&family=Rajdhani:wght@600;700;800&display=swap');

:root, [data-theme="light"] {
    --bg-primary: #f4f7fa;
    --bg-surface: #e8f4fb; /* was ffffff */
    --bg-surface-alt: #ebf1f6;
    --bg-surface-active: #b8eafd;
    --bg-invert: #1294d7;
    --bg-card: #ffffff;
    --border-color: #d1dce5;
    --border-light: #e3ebf2;
    
    --text-primary: #1e293b;
    --text-invert: #f8fafc;
    --text-secondary: #475569;
    --text-muted: #74849b;
    --text-light: #94a3b8;
    
    /* Technical CAD / Blueprint Accent Colors */
    --accent-blue: #0284c7;
    --accent-blue-hover: #0369a1;
    --accent-blue-subtle: #e0f2fe;
    --accent-cyan: #0888c2;
    --accent-gold: #d97706;
    --accent-green: #059669;
    --accent-border: #38bdf8;
    
    --header-gradient: linear-gradient(135deg, #0a3d62 0%, #1e5f8a 50%, #082b45 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --card-shadow-hover: 0 10px 15px -3px rgba(2, 132, 199, 0.12), 0 4px 6px -4px rgba(0, 0, 0, 0.08);
	--icon-brightness: brightness(100%); --icon-brightness2: brightness(100%);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    
    /* Typography: Bold Technical Titles (Rajdhani) & Narrow Precision Body (Barlow Semi Condensed) */
    --font-heading: "Rajdhani", "Segoe UI", -apple-system, BlinkMacSystemFont, Roboto, sans-serif;
    --font-sans: "Barlow Semi Condensed", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: "Cascadia Code", "Fira Code", Consolas, "Courier New", monospace;
	--bw: opacity(0.8);

	--pattern-grid-size: 80px;
    --pattern-micro-size: 16px;
    --pattern-scan-size: 8px;
}

[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-surface: #1a2b3d; /* was: #1e293b; */
    --bg-surface-alt: #162032;
    --bg-surface-active: #202f48;
    --bg-invert: #189dd8;
    --bg-card: #1b263b;
    --border-color: #334155;
    --border-light: #243044;
    
    --text-primary: #f8fafc;
    --text-invert: #1e293b;
    --text-secondary: #cbd5e1;
    --text-muted: #8493a8;
    --text-light: #64748b;
    
    /* Vibrant CAD Viewport Accents */
    --accent-blue: #28ade8;
    --accent-blue-hover: #7dd3fc;
    --accent-blue-subtle: #0c2d48;
    --accent-cyan: #0293c0; /* was #22d3ee; */
    --accent-gold: #fbbf24;
    --accent-green: #34d399;
    --accent-border: #0ea5e9;
    
    --header-gradient: linear-gradient(135deg, #02111f 0%, #092036 50%, #031422 100%);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --card-shadow-hover: 0 10px 15px -3px rgba(56, 189, 248, 0.2), 0 4px 6px -4px rgba(0, 0, 0, 0.25);
	--icon-brightness: brightness(150%); --icon-brightness2: brightness(250%);
	--bw: invert(0.9);

	--pattern-grid-size: 80px;
    --pattern-micro-size: 16px;
    --pattern-scan-size: 8px;
}

/* Base Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    font-size: 1.02rem;
    letter-spacing: 0.05px;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.55;
    transition: background-color 0.25s ease, color 0.25s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;

  background-color: var(--bg-primary);
  
  /* Layered pattern using design tokens */
  background-image:
    radial-gradient(
      circle at 50% 50%, 
      rgba(var(--accent-blue-rgb, 2, 132, 199), 0.12) 0%, 
      transparent 60%
    ),
    radial-gradient( /* maj grid dots */
      circle, 
      /* var(--accent-border) 1.5px, */
	  color-mix(in srgb, var(--accent-border) 30%, transparent) 1.5px,
      transparent 2px
    ),
    radial-gradient(
      circle, 
      color-mix(in srgb, var(--text-light) 70%, transparent) 0.5px, 
      transparent 1px
    ),
    linear-gradient( /* maj hor */
      to right, 
      /* var(--border-color) 1px, */
	  color-mix(in srgb, var(--border-color) 60%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient( /* maj ver */
      to bottom, 
      /* var(--border-color) 1px, */
	  color-mix(in srgb, var(--border-color) 60%, transparent) 1px,
      transparent 1px
    ),
    linear-gradient( /* dia */
      135deg, 
      var(--border-light) 25%, 
      transparent 25%, 
      transparent 50%, 
      var(--border-light) 50%, 
      var(--border-light) 75%, 
      transparent 75%, 
      transparent
    );
    background-size: 
    100% 100%,
    var(--pattern-grid-size) var(--pattern-grid-size),
    var(--pattern-micro-size) var(--pattern-micro-size),
    var(--pattern-grid-size) var(--pattern-grid-size),
    var(--pattern-grid-size) var(--pattern-grid-size),
    var(--pattern-scan-size) var(--pattern-scan-size);
    background-position: 0 0;
    transition: background-color 0.3s ease, background-image 0.3s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 0.35px;
    line-height: 1.25;
	margin-top: 18px;
}

h1 {
    font-weight: 800;
    letter-spacing: 0.5px;
}

a {
    color: var(--accent-blue);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-blue-hover); /* krome buttonu */
}

input, select {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm) !important;
    padding: 1px 4px;
    color: var(--text-primary);
    transition: all 0.2s ease;
}
input.active, select.active {background: var(--bg-surface-active); border: 1px solid var(--accent-border);}
input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--bg-surface);
}
button, input[type=button], input[type=submit] {
    background: var(--accent-blue);
    color: white;
    font-family: var(--font-family);
    font-size: 0.75rem;
	padding:3px 8px 6px 8px; border-radius:6px;
}

/* ==============================================================================
   Top Utility Bar (Language Switcher + Theme Switcher + Search)
   ============================================================================== */

.top-bar {
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    padding: 8px 24px;
    font-size: 0.875rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.top-bar-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.top-bar-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--accent-blue);
}

.top-bar-brand-icon {
    font-size: 1.1rem;
}
.top-bar-brand-icon img {vertical-align: middle; filter: var(--icon-brightness);}

.top-bar-controls {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Search Bar */
.top-search-form {
    display: flex;
    align-items: center;
    position: relative;
}

.top-search-input {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 6px 36px 6px 12px;
    font-size: 0.85rem;
    color: var(--text-primary);
    width: 248px;
    transition: all 0.2s ease;
}

.top-search-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    width: 300px;
    background: var(--bg-surface);
}

.top-search-btn {
    position: absolute;
    right: 0px;   top: 0px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.9rem;
}
.top-search-btn span {filter: saturate(0.75) opacity(0.6) contrast(0.8); font-size: 120%;}

/* Language Switcher */
.lang-switcher {
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-surface-alt);
    padding: 3px 6px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.lang-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    margin-right: 4px;
}

.lang-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s ease;
}

.lang-btn:hover {
    background-color: rgba(2, 132, 199, 0.1);
    color: var(--accent-blue);
}

.lang-btn.active {
    background-color: var(--accent-blue);
    color: #ffffff;
}

/* Theme Switcher Button */
.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.theme-toggle-btn:hover {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    border-color: var(--accent-border);
}

.bw {filter: var(--bw); padding-top: 16px;}

/* ==============================================================================
   Thematic CAD Graphic Header Banner
   ============================================================================== */

.site-header {
    background: var(--header-gradient);
    position: relative;
    overflow: hidden;
    color: #ffffff;
    border-bottom: 3px solid var(--accent-cyan);
}

.header-banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.85;
    pointer-events: none;

    overflow: hidden;
    background-size: cover;
    background-position: center center;
    background-image: url('/assets/CADshd.jpg');
}

.site-header-content {
    position: relative;
    z-index: 10;
    max-width: 1400px;
    margin: 0 auto;
    padding: 34px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
}

.header-title-group {
    max-width: 680px;
}

.header-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(8, 145, 178, 0.35);
    border: 1px solid rgba(34, 211, 238, 0.4);
    padding: 4px 10px 2px 4px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    color: #e0f2fe;
}

.header-title {
    font-family: var(--font-heading);
    font-size: 2.4rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    line-height: 1.15;
    margin-bottom: 8px;
    color: #ffffff;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.header-title span.author {
    font-weight: 400;
    color: var(--accent-cyan);
    font-size: 1.0rem;
    text-shadow: #222 2px 2px;
}
.header-title img {filter: drop-shadow(5px 5px 5px #222); }

.header-tagline {
    font-size: 1.05rem;
    color: #cbd5e1;
    font-weight: 400;
	text-shadow: #222 2px 2px;
}

.header-meta-chips {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.meta-chip {
    display: flex;
    align-items: center;
    gap: 6px;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: #e2e8f0;
}

.meta-chip-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 8px #10b981;
}
.meta-chip img, .meta-date img, .meta-views img {vertical-align:middle; padding:0 1px 2px 0; opacity: 0.75; filter: var(--icon-brightness2);}

.date  {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

.pagination { font-size: 0.80rem; color: var(--text-light);}
.pagination span { padding: 1px 3px; border-radius: 4px; font-weight: 400; margin-right: 3px;
    background: rgba(8, 145, 178, 0.12);
    color: var(--accent-cyan);
    border: 1px solid rgba(8, 145, 178, 0.5);}
.pagination span.active {background: var(--accent-cyan); color: #eee;}

/* ==============================================================================
   Main Layout Structure (Sidebar + Tiled Content)
   ============================================================================== */

.site-body {
    max-width: 1400px;
    margin: 28px auto;
    padding: 0 24px;
    width: 100%;
    display: grid;
    grid-template-columns: 270px 1fr;
    gap: 28px;
    flex: 1;
}

/* Left-hand Navigation Menu */
.sidebar-nav {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 2px 18px 14px;
    height: fit-content;
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 68px;
}

.nav-section-title {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.8px;
    padding: 8px 12px;
    margin-top: 10px;
}

.nav-section-title:first-child {
    margin-top: 0;
}

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.nav-list li {border-bottom: 1px dotted #80d0e080;  margin-bottom: 3px;}

.nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 900;
    transition: all 0.15s ease;
}

.nav-link-content {
    display: flex;
    align-items: center;
    gap: 10px;
	text-transform: uppercase;
}

.nav-icon {
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    color: var(--accent-blue);
}
.nav-icon img {vertical-align:middle; padding: 0 2px 2px 0; filter: var(--icon-brightness);}

.nav-link:hover {
    background-color: var(--bg-surface-alt);
    color: var(--accent-blue);
    transform: translateX(3px);
}

.nav-link.active {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    /*font-weight: 600;*/
    border-left: 3px solid var(--accent-blue);
}

.nav-badge-soon {
    background: rgba(217, 119, 6, 0.15);
    color: var(--accent-gold);
    border: 1px solid rgba(217, 119, 6, 0.3);
    font-size: 0.66rem;
    padding: 1px 5px;
    border-radius: 12px;
    font-weight: 600;
}

/* ==============================================================================
   Tiled Content Sections (Dashboard / Grid)
   ============================================================================== */

.content-wrapper {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.portal-welcome-banner {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-blue);
    border-radius: var(--radius-md);
    padding: 18px 22px;
    box-shadow: var(--card-shadow);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.welcome-text h2 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 4px; margin-top: 0;
    color: var(--text-primary);
}

.welcome-text p {
    font-size: 0.92rem;
    color: var(--text-secondary);
}

.tech-tag-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.tech-tag {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 4px 9px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}
.kwd-tag-group { display: flex; gap: 8px; flex-wrap: wrap; }
.kwd-tag {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 2px 4px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.66rem;
    color: var(--text-muted);
}
.cad-tag {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 3px 5px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-blue-hover);
	margin-right: 4px;
}

/* Sections Grid */
.tiles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(430px, 1fr)); /* was 330 */
    gap: 24px;
}

/* Individual Content Tile Card */
.content-tile {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.content-tile:hover {
    transform: translateY(-3px);
    box-shadow: var(--card-shadow-hover);
    border-color: var(--accent-border);
}

.tile-header {
    padding: 20px 20px 14px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.tile-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tile-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
}
.tile-icon img {filter: var(--icon-brightness);}

.tile-icon.blue {
    background: rgba(2, 132, 199, 0.12);
    color: var(--accent-blue);
    border: 1px solid rgba(2, 132, 199, 0.25);
}

.tile-icon.cyan {
    background: rgba(8, 145, 178, 0.12);
    color: var(--accent-cyan);
    border: 1px solid rgba(8, 145, 178, 0.25);
}

.tile-icon.gold {
    background: rgba(217, 119, 6, 0.12);
    color: var(--accent-gold);
    border: 1px solid rgba(217, 119, 6, 0.25);
}

.tile-icon.green {
    background: rgba(5, 150, 105, 0.12);
    color: var(--accent-green);
    border: 1px solid rgba(5, 150, 105, 0.25);
}

.tile-icon.purple {
    background: rgba(147, 51, 234, 0.12);
    color: #9333ea;
    border: 1px solid rgba(147, 51, 234, 0.25);
}

.tile-title-group h3 {
    font-size: 1.33rem; /* was 1.15 */
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.25;
}
.tile-title-group h3 a {color: var(--text-primary);}

.tile-title-group p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.tile-badge {
    padding: 3px 8px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    white-space: nowrap;
}

.tile-badge.info {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    border: 1px solid var(--accent-border);
}

.tile-body {
    padding: 16px 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.tile-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

/* Include Placeholder Box inside the tile */
.include-placeholder-box {
    background: var(--bg-surface-alt);
    border: 1px dashed var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: auto;
}

.placeholder-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.placeholder-code {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent-blue);
    background: var(--bg-surface);
    padding: 4px 8px;
    border-radius: 4px;
    border: 1px solid var(--border-light);
    display: block;
    word-break: break-all;
}

.placeholder-status {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 6px;
    font-style: italic;
}

.tile-footer {
    padding: 12px 20px;
    background: var(--bg-surface-alt);
    border-top: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tile-action-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.84rem;
    font-weight: 600;
    background: var(--accent-blue);
    color: #ffffff;
    transition: background 0.15s ease;
}

.tile-action-btn:hover {
    background: var(--accent-blue-hover);
    color: #ffffff;
}

.tile-meta-note {
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--text-muted);
}

/* ==============================================================================
   Footer & About Section
   ============================================================================== */

.site-footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-color);
    margin-top: 48px;
    padding: 40px 24px 24px 24px;
}

.footer-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 4fr 1fr 1.2fr; /* radeji 8-2-3 */
    gap: 48px;
    padding-bottom: 22px;
    border-bottom: 1px solid var(--border-light);
}
.footer-about {flex-grow:2;}
.footer-about h4 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-about p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 14px;
}

.author-credentials {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 8px;
}

.credential-badge {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-blue);
}

.footer-col h5 {
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.footer-links-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.footer-links-list a {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.footer-links-list a:hover {
    color: var(--accent-blue);
    padding-left: 3px;
}

.footer-links-list img {width:24px; vertical-align:middle; padding-right:6px; padding-bottom:2px; filter: var(--icon-brightness2) drop-shadow(0 0 0 #ffffff);}

.footer-bottom {
    max-width: 1400px;
    margin: 20px auto 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: var(--text-muted);
    flex-wrap: wrap;
    gap: 12px;
}

.footer-disclaimer {
    font-size: 0.78rem;
}

/* ==============================================================================
   Breadcrumb Navigation & Section Detail Views
   ============================================================================== */

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.breadcrumb-nav a {
    color: var(--accent-blue);
    font-weight: 500;
}

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

.breadcrumb-separator {
    color: var(--text-light);
    font-size: 0.95rem;
}

.breadcrumb-current {
    color: var(--text-secondary);
    font-weight: 600;
}

/* Detail Banner */
.section-detail-banner {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.section-detail-header {
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.detail-badge-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
    flex-wrap: wrap;
}

.section-detail-title {
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.2;
}

.section-detail-subtitle {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.section-detail-desc {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Section Filter Bar */
.section-filter-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px; /* was 16 */
    /* padding-top: 14px;   off:VM */
    /* border-top: 1px solid var(--border-light);    off:VM */
    flex-wrap: wrap;
}

.filter-pills-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
}

.filter-pill {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    transition: all 0.15s ease;
}
.sec {font-weight: 100; padding: 1px 6px; font-size: 0.75rem;}

.filter-pill:hover {
    background: var(--accent-blue-subtle);
    color: var(--accent-blue);
    border-color: var(--accent-border);
}

.filter-pill.active {
    background: var(--accent-blue);
    color: #ffffff;
    border-color: var(--accent-blue);
}

.section-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
	/* added VM */
	width:100%; align-items: flex-end; flex-flow: column-reverse;
}

.section-search-input {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 6px 36px 6px 12px;
    font-size: 0.84rem;
    color: var(--text-primary);
    width: 248px;
    transition: all 0.2s ease;
}

.section-search-input:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: var(--bg-surface);
}

/* Detail Card & Placeholder Stream */
.detail-content-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.detail-card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.detail-card-header h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
}

.detail-card-body {
    padding: 20px;
}

.placeholder-grid-preview {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.placeholder-item-row {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    transition: background 0.15s ease;
}

.placeholder-item-row:hover {
    background: var(--accent-blue-subtle);
}

.row-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 2px 7px;
    border-radius: 4px;
    color: var(--accent-blue);
    white-space: nowrap;
}

.row-title {
    flex: 1;
    color: var(--text-primary);
    font-weight: 500;
}

.row-cat {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 600;
}

.detail-card-footer {
    padding: 14px 20px;
    background: var(--bg-surface-alt);
    border-top: 1px solid var(--border-light);
}

.btn-back-home {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.btn-back-home:hover {
    color: var(--accent-blue);
}

/* ==============================================================================
   Tri-Mode SQL Includes Styling (Tile 10-List, Filtered Stream, Full Detail)
   ============================================================================== */

/* Mode 1: 10 Latest Items on Homepage Tiles */
.tile-latest-box {
    margin-top: 14px;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
}

.tile-latest-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 8px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-light);
}

.latest-count-badge {
    background: var(--accent-blue);
    color: #ffffff;
    font-size: 0.72rem;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 700;
}

.tile-latest-list {
    list-style-position: inside;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.tile-latest-item {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 6px;
    border-radius: 4px;
    transition: background 0.15s ease;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.tile-latest-item:hover {
    background: var(--accent-blue-subtle);
}

.tile-item-link {
    color: var(--text-primary);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.tile-item-link:hover {
    color: var(--accent-blue);
}

/* Category Badges / Tags */
.item-cat-tag {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 4px;
    white-space: nowrap;
    letter-spacing: 0.3px;
}

.item-cat-tag.large {
    font-size: 0.78rem;
    padding: 3px 8px;
    border-radius: 6px;
}

.item-cat-tag.cad {
    background: rgba(8, 145, 178, 0.15);
    color: #0891b2;
    border: 1px solid rgba(8, 145, 178, 0.3);
}
.item-cat-tag.hw {
    background: rgba(96, 104, 112, 0.15);
    color: #707880;
    border: 1px solid rgba(96, 104, 112, 0.3);
}
.item-cat-tag.pgm {
    background: rgba(96, 8, 112, 0.15);
    color: #700880;
    border: 1px solid rgba(96, 8, 112, 0.3);
}
.item-cat-tag.aec {
    background: rgba(14, 115, 232, 0.15);
    color: #0e73e8;
    border: 1px solid rgba(14, 115, 232, 0.3);
}
.item-cat-tag.mfg {
    background: rgba(214, 118, 0, 0.15);
    color: #da7600;
    border: 1px solid rgba(214, 118, 0, 0.3);
}
.item-cat-tag.file {
    background: rgba(255, 126, 0, 0.15);
    color: #ff7e00;
    border: 1px solid rgba(255, 126, 0, 0.3);
}
.item-cat-tag.ext {
    background: rgba(255, 64, 0, 0.15);
    color: #ff4000;
    border: 1px solid rgba(255, 64, 0, 0.3);
}

.item-cat-tag.link {
    background: rgba(8, 145, 178, 0.15);
    color: #0891b2;
    border: 1px solid rgba(8, 145, 178, 0.3);
}

.item-cat-tag.forma {
    background: rgba(1, 154, 200, 0.15);
    color: #014bd8;
    border: 1px solid rgba(1, 154, 200, 0.3);
}

.item-cat-tag.fusion {
    background: rgba(255, 126, 0, 0.15);
    color: #ff7e00;
    border: 1px solid rgba(255, 126, 0, 0.3);
}

.item-cat-tag.autocad {
    background: rgba(229, 28, 36, 0.15);
    color: #e51c24;
    border: 1px solid rgba(229, 28, 36, 0.3);
}

.item-cat-tag.inventor {
    background: rgba(214, 118, 0, 0.15);
    color: #da7600;
    border: 1px solid rgba(214, 118, 0, 0.3);
}
.item-cat-tag.vault {
    background: rgba(184, 118, 38, 0.15);
    color: #ba7f20;
    border: 1px solid rgba(184, 118, 38, 0.3);
}

.item-cat-tag.revit {
    background: rgba(14, 115, 232, 0.15);
    color: #0e73e8;
    border: 1px solid rgba(14, 115, 232, 0.3);
}

.item-cat-tag.lisp {
    background: rgba(5, 150, 105, 0.15);
    color: #059669;
    border: 1px solid rgba(5, 150, 105, 0.3);
}

.item-cat-tag.architecture {
    background: rgba(8, 145, 178, 0.15);
    color: #0891b2;
    border: 1px solid rgba(8, 145, 178, 0.3);
}

.item-cat-tag.mechanical {
    background: rgba(100, 116, 139, 0.15);
    color: #64748b;
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.item-cat-tag.mep {
    background: rgba(147, 51, 234, 0.15);
    color: #9333ea;
    border: 1px solid rgba(147, 51, 234, 0.3);
}

.item-cat-tag.civil3d {
    background: rgba(165, 28, 100, 0.15);
    color: #a51c64;
    border: 1px solid rgba(165, 28, 100, 0.3);
}
.item-cat-tag.map {
    background: rgba(197, 28, 68, 0.15);
    color: #c51c44;
    border: 1px solid rgba(197, 28, 68, 0.3);
}
.item-cat-tag.navisworks {
    background: rgba(181, 48, 76, 0.15);
    color: #b53844;
    border: 1px solid rgba(181, 48, 76, 0.3);
}

.item-cat-tag.scripts {
    background: rgba(178, 81, 134, 0.15);
    color: #a44389;
    border: 1px solid rgba(178, 81, 134, 0.3);
}

.item-cat-tag.calc {
    background: rgba(178, 81, 134, 0.15);
    color: #a44389;
    border: 1px solid rgba(178, 81, 134, 0.3);
}
.item-cat-tag.conv {
    background: rgba(146, 129, 134, 0.15);
    color: #847389;
    border: 1px solid rgba(146, 129, 134, 0.3);
}
.item-cat-tag.tab {
    background: rgba(147, 51, 234, 0.15);
    color: #9333ea;
    border: 1px solid rgba(147, 51, 234, 0.3);
}
.item-cat-tag.gen {
    background: rgba(37, 134, 121, 0.15);
    color: #258679;
    border: 1px solid rgba(37, 134, 121, 0.3);
}
.item-cat-tag.nest {
    background: rgba(37, 89, 150, 0.15);
    color: #255996;
    border: 1px solid rgba(37, 89, 150, 0.3);
}
.item-cat-tag.view {
    background: rgba(207, 126, 0, 0.15);
    color: #cf7e00;
    border: 1px solid rgba(207, 126, 0, 0.3);
}
.item-cat-tag.geo, .item-cat-tag.units, .item-cat-tag.formats {
    background: rgba(2, 132, 199, 0.15);
    color: #0284c7;
    border: 1px solid rgba(2, 132, 199, 0.3);
}

/* Mode 2: Filtered Content Stream */
.filter-status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
    margin-bottom: 16px;
}

.clear-filter-link {
    color: #ef4444;
    font-weight: 600;
    text-decoration: none;
}

.clear-filter-link:hover {
    text-decoration: underline;
}

.filtered-items-stream {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.filter-item-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    box-shadow: var(--card-shadow);
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.filter-item-card:hover {
    transform: translateY(-2px);
    border-color: var(--accent-border);
}

.filter-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    flex-wrap: wrap;
    gap: 8px;
}

.filter-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.tip-id-badge {
    font-family: var(--font-mono);
    font-size: 0.76rem;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-light);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--accent-blue);
    font-weight: 600;
}

.filter-card-title {
    font-size: 1.33rem; /* was 1.12 */
    font-weight: 700;
    margin-bottom: 6px;
    line-height: 1.35;
}

.filter-card-title a {
    color: var(--text-primary);
}

.filter-card-title a:hover {
    color: var(--accent-blue);
}

.filter-card-excerpt {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.filter-card-action {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--accent-blue);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* ==============================================================================
   Downloads Page — Table-Style List (page mode)
   ============================================================================== */

/* Sort toggle row */
.dl-sort-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.82rem;
    flex-wrap: wrap;
}

.dl-sort-active {
    font-weight: 700;
    color: var(--text-secondary);
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    padding: 3px 9px;
    border-radius: 20px;
}

.dl-sort-switch {
    display: inline-block;
    padding: 3px 9px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    color: var(--accent-blue);
    transition: all 0.15s ease;
}

.dl-sort-switch:hover {
    background: var(--accent-blue-subtle);
    border-color: var(--accent-border);
    color: var(--accent-blue);
}

/* Section wrapper */
.dl-compact-section {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 10px 12px 14px 12px;
    margin-top: 14px;
}

.dl-compact-section-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: 10px;
    padding-bottom: 7px;
    border-bottom: 1px solid var(--border-light);
}

.dl-all-count-badge {
    background: var(--accent-green);
    color: #ffffff;
    font-size: 0.72rem;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 700;
}

/* ---- Table layout ---- */
.dl-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.dl-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.83rem;
}

.dl-table thead th {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.4px;
    color: var(--text-muted);
    padding: 4px 6px 5px 6px;
    border-bottom: 1px solid var(--border-light);
    white-space: nowrap;
    text-align: left;
}

.dl-th-type  { width: 52px; }
.dl-th-title { width: auto; }
.dl-th-cat   { width: 160px; }
.dl-th-date  { width: 82px;  text-align: right; }
.dl-th-size  { width: 68px;  text-align: right; }

.dl-table-row {
    border-bottom: 1px solid var(--border-light);
    transition: background 0.12s ease;
}

.dl-table-row:last-child {
    border-bottom: none;
}

.dl-table-row:hover {
    background: var(--accent-blue-subtle);
}

/* "New" row accent */
.dl-row-new {
    background: rgba(5, 150, 105, 0.05);
    border-left: 3px solid var(--accent-green);
}

.dl-row-new:hover {
    background: rgba(5, 150, 105, 0.12);
}

.dl-td-type {
    padding: 5px 6px;
    white-space: nowrap;
    vertical-align: middle;
}

.dl-td-title {
    padding: 5px 8px 5px 4px;
    vertical-align: middle;
    min-width: 160px;
}

.dl-td-cat {
    padding: 5px 6px;
    vertical-align: middle;
}

.dl-td-date {
    padding: 5px 6px;
    text-align: right;
    white-space: nowrap;
    vertical-align: middle;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    color: var(--text-muted);
}

.dl-td-size {
    padding: 5px 6px;
    text-align: right;
    white-space: nowrap;
    vertical-align: middle;
    font-family: var(--font-mono);
    font-size: 0.74rem;
    font-weight: 600;
    color: var(--accent-blue);
}

/* Title link within table */
.dl-compact-title {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    line-height: 1.35;
}

.dl-compact-title:hover {
    color: var(--accent-blue);
}

/* "New" badge */
.dl-new-badge {
    display: inline-flex;
    align-items: center;
	
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 1px 5px;
    border-radius: 4px;
    white-space: nowrap;
    letter-spacing: 0.3px;
	margin-right: 4px;
	/*
    margin-left: 8px;
    padding: 1px 7px;
    border-radius: 10px;
    font-size: 0.66rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 0 6px rgba(16, 185, 129, 0.25);
	*/
    background: rgba(5, 150, 105, 0.2);
    color: #059669;
    border: 1px solid #10b981;
    vertical-align: middle;
    white-space: nowrap;
}

[data-theme="dark"] .dl-new-badge {
    background: rgba(52, 211, 153, 0.25);
    color: #34d399;
    border-color: #34d399;
    box-shadow: 0 0 8px rgba(52, 211, 153, 0.35);
}

.dl-new-badge-large {
    font-size: 0.75rem;
    padding: 2px 10px;
}

/* ---- NadCat (top-level) bold separator ---- */
.dl-ncat-separator {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 18px 0 6px 0;
    padding: 7px 10px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--accent-blue);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.dl-ncat-separator:first-of-type {
    margin-top: 4px;
}

.dl-ncat-label {
    font-family: var(--font-heading);
    font-size: 0.97rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: 0.2px;
    flex: 1;
}

.dl-ncat-filter-link {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-blue);
    white-space: nowrap;
    opacity: 0.7;
    transition: opacity 0.15s;
}

.dl-ncat-filter-link:hover {
    opacity: 1;
    text-decoration: underline;
}

/* ---- Sub-category (Cat) header ---- */
.dl-cat-group-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0 4px 14px;
}

.dl-subcat-tag {
    background: var(--bg-surface-alt) !important;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-color) !important;
}

.dl-cat-count {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    padding: 1px 6px;
    border-radius: 10px;
}

/* Category breadcrumb in flat/date view */
.dl-cat-crumb {
    font-size: 0.76rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.dl-cat-crumb a {
    color: var(--text-muted);
    transition: color 0.13s;
}

.dl-cat-crumb a:hover {
    color: var(--accent-blue);
}

.dl-crumb-sep {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* File-type hint box inside detail view */
.dl-hint-box {
    margin-top: 8px;
    padding: 8px 12px;
    background: var(--accent-blue-subtle);
    border-left: 3px solid var(--accent-blue);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Error / empty state */
.dl-no-results {
    padding: 18px 0;
    color: var(--text-muted);
    font-size: 0.92rem;
    font-style: italic;
}

.dl-db-error {
    color: #ef4444;
    font-size: 0.88rem;
    padding: 10px 0;
}

/* Responsive: hide columns on small screens */
@media (max-width: 640px) {
    .dl-th-cat,  .dl-td-cat  { display: none; }
    .dl-th-date, .dl-td-date { display: none; }
}


/* Mode 3: Single Item Full Detail View */
.single-item-detail {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.item-detail-header {
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 16px;
}

.item-meta-row {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 12px;
}

.item-detail-title {
    font-size: 1.7rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.25;
    margin-bottom: 12px;
}

.item-compat-box {
    background: var(--bg-surface-alt);
    border-left: 3px solid var(--accent-blue);
    padding: 8px 14px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.item-detail-body { /* Tip body */
    /* display: flex;
    flex-direction: column;
    gap: 16px; */
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-primary);
}
.item-detail-body p {padding-top: 0.5em; padding-bottom: 0.25em;}
.item-detail-body li > p {padding-top: 0;}
.item-detail-body li {margin-left: 1.2em;}
.item-detail-body tt, pre, code {font-size: 0.85rem;}
.item-detail-body pre {line-height: 1.4; margin-top: 10px;}

.item-detail-body table {border-collapse:collapse; margin-top: 10px;}
.item-detail-body table tr:nth-child(even) { background: rgba(120,120,120,0.15); }
.item-detail-body table.normal tr { background: initial; }
.item-detail-body table th {background-color: var(--bg-invert); color:var(--text-invert); text-align: center; border: 1px solid gray;}
.item-detail-body table td {padding: 2px 4px 2px 4px;}
.item-detail-body table td p {font-size: 1rem; line-height: 1.4;}
.item-detail-body table th h5 {margin:inherit; padding:8px;}

.item-lead-paragraph {
    font-size: 1.05rem;
    font-weight: 500;
	font-style: italic;
    color: var(--text-secondary);
    line-height: 1.6;
    padding-bottom: 8px;
    border-bottom: 1px dashed var(--border-light);
}

.code-sample-wrapper {
    background: #0d1117;
    border: 1px solid #30363d;
    border-radius: var(--radius-sm);
    overflow: hidden;
    margin: 8px 0;
}

.code-sample-header {
    background: #161b22;
    padding: 8px 14px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: #8b949e;
    border-bottom: 1px solid #30363d;
}

.btn-copy-code {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #c9d1d9;
    border-radius: 4px;
    padding: 2px 8px;
    font-size: 0.74rem;
    cursor: pointer;
}

.btn-copy-code:hover {
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.code-sample-block {
    padding: 14px 16px;
    margin: 0;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.84rem;
    color: #58a6ff;
    line-height: 1.5;
}

.item-attachment-box {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
	margin-top: 20px;
}

.attachment-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.attachment-icon {
    font-size: 1.6rem;
}
.attachment-icon img {vertical-align: middle; filter: var(--icon-brightness); border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 8px;
 }

.attachment-filename {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.btn-download-file {
    background: var(--accent-blue);
    color: #ffffff;
    border: none;
    padding: 8px 18px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-download-file:hover {
    background: var(--accent-blue-hover);
	color: white;
}

.item-detail-footer {
    display: flex;
    gap: 14px;
    padding-top: 20px;
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
}

/* Interactive Calculator Box Form */
.calculator-interactive-card {
    background: var(--bg-surface-alt);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin: 10px 0;
    display: flex;
    flex-direction: column;
    gap: 14px;
}
.calculator-interactive-card p {font-size: 0.95rem; line-height: 1.5;}

.calc-card-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.calc-inputs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.calc-input-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.calc-input-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.calc-text-input {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 8px 12px;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.calc-text-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.btn-calculate-action {
    align-self: flex-start;
    background: var(--accent-blue);
    color: #ffffff;
    border: none;
    padding: 9px 20px;
    border-radius: var(--radius-sm);
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    transition: background 0.15s ease;
}

.btn-calculate-action:hover {
    background: var(--accent-blue-hover);
}

#themeIcon img {width:16px; height:16px; vertical-align:middle;}

        dialog#dlModal { border: 1px solid #ccc; border-radius: 6px; padding: 0; width: 480px; }
        dialog#dlModal::backdrop { background: rgba(0,0,0,0.5); }
        .modal-header { padding: 8px 16px; background: #f1f1f1; text-align: right; }
        iframe#dlFrame { width: 100%; height: 300px; border: none; }

fieldset#example {padding: 6px 16px 12px 16px; border: 1px solid #909090a0; border-radius: 8px; font-size: 0.9rem;}
fieldset#example legend {font-size: 1.1rem;}
fieldset#example div {line-height: 1.75;}
fieldset#example div span {color:rgba(128,128,128,0.75);; padding:0 4px 0 4px}

/* CF */
.red {color:#f64;}
.cmd {color: var(--accent-cyan) !important; border-bottom: 1px dotted var(--accent-cyan); cursor: help; font-size: 1rem;}
.var {color: var(--accent-green) !important; border-bottom: 1px dotted var(--accent-green); cursor: help; font-size: 1rem;}
.kwd {border-bottom: 1px solid var(--accent-gold); }
.term {border-bottom: 2px dotted var(--accent-green); cursor: help; text-decoration: none !important;}


/* ==============================================================================
   Responsive Adjustments
   ============================================================================== */

@media (max-width: 1024px) {
    .site-body {
        grid-template-columns: 1fr;
    }

    .sidebar-nav {
        position: static;
    }

    .footer-inner {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .top-bar-inner {
        flex-direction: column;
        align-items: stretch;
    }

    .top-bar-controls {
        justify-content: space-between;
    }

    .top-search-input {
        width: 100%;
    }

    .header-title {
        font-size: 1.8rem;
    }

    .header-meta-chips {
        display: none;
    }

    .footer-inner {
        grid-template-columns: 1fr;
    }

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