/* ==========================================================================
   GLACIER SOFTWARE — OBSIDIAN ICE DESIGN SYSTEM
   World-Class Developer Portal (glaciersoftware.dev)
   WCAG 2.1 AAA Certified High-Contrast Palette & Responsive Layout Engine
   ========================================================================== */

:root {
    /* --- 1. Canvas & Surface Hierarchy --- */
    --canvas-deep:            #090B0E; /* Base viewport background */
    --canvas-subtle:          #0D1117; /* Secondary alternating sections, terminals */
    --canvas-surface:         #161B22; /* Card and container panels */
    --canvas-elevated:        #161B22; /* Elevated surfaces */
    --canvas-surface-hover:   #1C2128; /* Elevated card hover state */
    --canvas-terminal:        #0D1117; /* Code block / terminal interior */
    --canvas-glass:           rgba(22, 27, 34, 0.85); /* Glassmorphism panels */
    --glass-bg:               rgba(22, 27, 34, 0.85); /* Glassmorphism background */

    /* Backward compatibility aliases */
    --bg-primary:             #090B0E;
    --bg-secondary:           #0D1117;
    --bg-tertiary:            #161B22;

    /* --- 2. Typography Tokens (All L >= 0.3816, Ratio >= 7.11:1 on #161B22 and #090B0E) --- */
    --text-primary:           #F0F6FC; /* 18.10:1 AAA on #090B0E, 15.89:1 on #161B22 */
    --text-secondary:         #C9D1D9; /* 12.77:1 AAA on #090B0E, 11.21:1 on #161B22 */
    --text-muted:             #9EA7B3; /* 8.10:1 AAA on #090B0E, 7.11:1 on #161B22 (eliminates #8B949E 5.62:1 failure) */
    --text-muted-aaa:         #9EA7B3; /* WCAG AAA certified metadata & caption color */

    /* --- 3. Brand Accent & Interaction Tokens --- */
    --accent-color:           #66FCF1; /* Primary Glacial Cyan (15.72:1 AAA) */
    --accent-cyan:            #66FCF1; /* Glacial Cyan */
    --accent-hover:           #5EEAD4; /* High-contrast hover cyan (13.32:1 AAA, eliminates #45A29E failure) */
    --accent-cyan-hover:      #5EEAD4; /* High-contrast hover cyan */
    --accent-cyan-subtle:     rgba(102, 252, 241, 0.12);
    --accent-cyan-glow:       rgba(102, 252, 241, 0.25);
    --accent-neon-blue:       #388BFD; /* Secondary brand blue for graphical elements & focus */
    --accent-cobalt-bright:   #70B8FF; /* High-contrast cobalt text (9.37:1 AAA) */

    /* --- 4. 5-Pillar Functional Domain Tokens (All Verified >= 7.5:1 on #161B22) --- */
    /* Analytics & Query (Polaris, Forge, Sql, Chrono, Storage) */
    --pillar-analytics:       #66FCF1; /* Glacial Cyan: 15.72:1 AAA */
    --pillar-analytics-bg:    rgba(102, 252, 241, 0.12);
    --pillar-analytics-border:rgba(102, 252, 241, 0.35);

    /* Search, Vectors & Graphs (Vector, Graph, Grep, DocTree, Rag) */
    --pillar-search:          #CEB3FF; /* Lilac: 7.79:1 AAA on #161B22, 10.12:1 on #090B0E */
    --pillar-search-bg:       rgba(206, 179, 255, 0.10);
    --pillar-search-border:   rgba(206, 179, 255, 0.35);

    /* AI, Inference & Training (Inference, Tune, Agent, ADK, Bundle, Clavier) */
    --pillar-ml:              #FFB74D; /* Icy Amber: 9.99:1 AAA on #161B22, 11.38:1 on #090B0E */
    --pillar-ml-bg:           rgba(255, 183, 77, 0.12);
    --pillar-ml-border:       rgba(255, 183, 77, 0.35);
    --pillar-ai:              #FFB74D;

    /* Compute, Systems & Hardware (Gpu, Compute, Tensor, Cluster, ML, Serve) */
    --pillar-compute:         #34D399; /* Radiant Emerald: 9.00:1 AAA on #161B22, 10.25:1 on #090B0E */
    --pillar-compute-bg:      rgba(52, 211, 153, 0.12);
    --pillar-compute-border:  rgba(52, 211, 153, 0.35);

    /* Tools, Visualizers & Runtime (Studio, Desktop, Plot, StatsViz, Graphics, Game...) */
    --pillar-tools:           #85C4FF; /* Crisp Sky: 7.65:1 AAA on #161B22, 9.98:1 on #090B0E */
    --pillar-tools-bg:        rgba(133, 196, 255, 0.10);
    --pillar-tools-border:    rgba(133, 196, 255, 0.35);

    /* --- 5. Razor-Sharp Borders & Dividers --- */
    --border-subtle:          #30363D; /* Card border against dark canvas */
    --border-prominent:       #66FCF1; /* Prominent accent border */
    --border-razor:           #30363D; /* Razor card edges */
    --border-grid:            #21262D; /* Internal table/grid hairline dividers */
    --border-cyan-active:     #66FCF1; /* Active highlight border */
    --border-focus:           #388BFD; /* Focus accessibility ring */
    --border-color:           #30363D;

    /* --- 6. Elevation, Glow & Glassmorphism --- */
    --shadow-card:            0 4px 16px rgba(0, 0, 0, 0.6);
    --shadow-card-hover:      0 12px 32px rgba(0, 0, 0, 0.8), 0 0 16px rgba(102, 252, 241, 0.15);
    --shadow-cyan-glow:       0 0 24px rgba(102, 252, 241, 0.25);
    --backdrop-blur:          blur(12px);

    /* --- 7. Typography Stacks --- */
    --font-sans:              'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading:           'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono:              'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

/* ==========================================================================
   Base Layout & Typography
   ========================================================================== */
html {
    max-width: 100vw;
    overflow-x: hidden;
    box-sizing: border-box;
}

body {
    background-color: var(--canvas-deep);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    line-height: 1.6;
    max-width: 100vw;
    overflow-x: hidden;
    position: relative;
    box-sizing: border-box;
}

*, *::before, *::after {
    box-sizing: inherit;
}

h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 700;
}

p, li, span {
    color: var(--text-secondary);
}

a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-hover);
}

img, svg, canvas, video {
    max-width: 100%;
    height: auto;
}

/* ==========================================================================
   Navbar & Branding (Glassmorphism & High-Contrast Focus)
   ========================================================================== */
.navbar {
    background-color: var(--canvas-glass) !important;
    border-bottom: 1px solid var(--border-razor) !important;
    backdrop-filter: var(--backdrop-blur) !important;
    -webkit-backdrop-filter: var(--backdrop-blur) !important;
}

.brand-accent {
    color: var(--accent-color);
    font-size: 1.5rem;
}

.brand-text {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.brand-subtext {
    font-family: var(--font-heading);
    font-weight: 400;
    letter-spacing: 1px;
    color: var(--text-muted) !important;
}

.navbar-nav .nav-link {
    color: var(--text-secondary);
    font-weight: 500;
    margin-right: 1.5rem;
    transition: color 0.2s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color);
}

.navbar-nav .nav-link:focus-visible {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Header Sponsor Icons Group (Buy Me a Coffee, Ko-fi, GitHub Sponsors) */
.header-sponsor-group {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding-left: 0.65rem;
    border-left: 1px solid var(--border-razor, #30363d);
    margin-left: 0.65rem;
}

.header-sponsor-icon {
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--border-razor, #30363d);
    background-color: var(--canvas-surface, #161b22);
    color: var(--text-secondary, #c9d1d9);
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
}

.header-sponsor-icon.bmc-icon {
    color: #FFDD00;
}
.header-sponsor-icon.bmc-icon:hover,
.header-sponsor-icon.bmc-icon:focus-visible {
    color: #090B0E !important;
    background-color: #FFDD00 !important;
    border-color: #FFDD00 !important;
    box-shadow: 0 0 12px rgba(255, 221, 0, 0.45);
    transform: translateY(-2px);
    outline: none;
}

.header-sponsor-icon.kofi-icon {
    color: #FF5E5B;
}
.header-sponsor-icon.kofi-icon:hover,
.header-sponsor-icon.kofi-icon:focus-visible {
    color: #FFFFFF !important;
    background-color: #FF5E5B !important;
    border-color: #FF5E5B !important;
    box-shadow: 0 0 12px rgba(255, 94, 91, 0.45);
    transform: translateY(-2px);
    outline: none;
}

.header-sponsor-icon.gh-sponsor-icon {
    color: #EA4AAA;
}
.header-sponsor-icon.gh-sponsor-icon:hover,
.header-sponsor-icon.gh-sponsor-icon:focus-visible {
    color: #FFFFFF !important;
    background-color: #EA4AAA !important;
    border-color: #EA4AAA !important;
    box-shadow: 0 0 12px rgba(234, 74, 170, 0.45);
    transform: translateY(-2px);
    outline: none;
}

/* ==========================================================================
   Utility Classes & Contrast Remediation (WCAG AAA Certified)
   ========================================================================== */

/* Glacial Cyan Background Utility (15.72:1 AAA with dark text) */
.bg-cyan {
    background-color: var(--accent-cyan) !important;
    color: var(--canvas-deep) !important;
    font-weight: 700;
}

.bg-cyan.text-dark,
.bg-cyan .text-dark,
.badge.bg-cyan,
.badge.bg-cyan.text-dark {
    background-color: var(--accent-cyan) !important;
    color: var(--canvas-deep) !important;
    font-weight: 700 !important;
    border: 1px solid var(--accent-cyan) !important;
}

/* High-Contrast Text Color Utilities */
.text-cyan {
    color: var(--accent-cyan) !important;
}

.text-green {
    color: var(--pillar-compute) !important; /* #34D399: 9.00:1 AAA */
}

.text-purple {
    color: var(--pillar-search) !important; /* #CEB3FF: 7.79:1 AAA */
}

.text-amber {
    color: var(--pillar-ml) !important; /* #FFB74D: 9.99:1 AAA */
}

.text-blue {
    color: var(--pillar-tools) !important; /* #85C4FF: 7.65:1 AAA */
}

.text-muted-aaa {
    color: var(--text-muted-aaa) !important; /* #9EA7B3: 7.11:1 AAA */
}

.highlight-cyan {
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent-color);
    font-weight: 600;
}

.border-razor {
    border: 1px solid var(--border-razor) !important;
}

.border-subtle {
    border: 1px solid var(--border-subtle) !important;
}

.border-cyan-glow {
    border-color: rgba(102, 252, 241, 0.4) !important;
    box-shadow: 0 0 16px rgba(102, 252, 241, 0.15) !important;
}

.bg-dark-accent {
    background-color: var(--canvas-subtle) !important;
}

/* Bootstrap Badge Overrides (Eliminates low-contrast default solid colors) */
.badge.bg-primary {
    background-color: var(--pillar-tools-bg) !important;
    color: var(--pillar-tools) !important;
    border: 1px solid var(--pillar-tools-border) !important;
    font-weight: 700;
}

.badge.bg-success {
    background-color: var(--pillar-compute-bg) !important;
    color: var(--pillar-compute) !important;
    border: 1px solid var(--pillar-compute-border) !important;
    font-weight: 700;
}

.badge.bg-warning {
    background-color: var(--pillar-ml-bg) !important;
    color: var(--pillar-ml) !important;
    border: 1px solid var(--pillar-ml-border) !important;
    font-weight: 700;
}

/* 5-Domain Category Badge System */
.card-badge,
.badge-domain {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    line-height: 1;
    padding: 0.28rem 0.65rem;
    border-radius: 4px;
    letter-spacing: 0.3px;
    text-transform: uppercase;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.badge-domain-analytics {
    color: var(--pillar-analytics) !important;
    background-color: var(--pillar-analytics-bg) !important;
    border: 1px solid var(--pillar-analytics-border) !important;
}

.badge-domain-search {
    color: var(--pillar-search) !important;
    background-color: var(--pillar-search-bg) !important;
    border: 1px solid var(--pillar-search-border) !important;
}

.badge-domain-compute {
    color: var(--pillar-compute) !important;
    background-color: var(--pillar-compute-bg) !important;
    border: 1px solid var(--pillar-compute-border) !important;
}

.badge-domain-ml,
.badge-domain-ai {
    color: var(--pillar-ml) !important;
    background-color: var(--pillar-ml-bg) !important;
    border: 1px solid var(--pillar-ml-border) !important;
}

.badge-domain-tools {
    color: var(--pillar-tools) !important;
    background-color: var(--pillar-tools-bg) !important;
    border: 1px solid var(--pillar-tools-border) !important;
}

/* ==========================================================================
   Hero Section & Interactive Buttons
   ========================================================================== */
.hero-section {
    position: relative;
    padding: 8rem 0 6rem;
    background: radial-gradient(circle at 10% 20%, rgba(102, 252, 241, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(56, 139, 253, 0.04) 0%, transparent 45%);
}

.badge-accent {
    display: inline-block;
    padding: 0.35em 0.8em;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1;
    color: var(--accent-cyan) !important;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 50rem;
    background-color: var(--accent-cyan-subtle) !important;
    border: 1px solid rgba(102, 252, 241, 0.4) !important;
    font-family: var(--font-mono);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.25rem;
    font-weight: 400;
    color: var(--text-secondary);
    max-width: 650px;
}

/* Custom Buttons */
.btn-cyan {
    background-color: var(--accent-cyan) !important;
    color: var(--canvas-deep) !important;
    font-weight: 700 !important;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    border: 1px solid var(--accent-cyan) !important;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-cyan:hover {
    background-color: var(--accent-cyan-hover) !important;
    color: var(--canvas-deep) !important;
    border-color: var(--accent-cyan-hover) !important;
    box-shadow: var(--shadow-cyan-glow) !important;
    transform: translateY(-1px);
}

.btn-outline-cyan {
    background-color: transparent !important;
    color: var(--accent-cyan) !important;
    font-weight: 600 !important;
    padding: 0.5rem 1.25rem;
    border-radius: 4px;
    border: 1px solid var(--accent-cyan) !important;
    transition: all 0.2s ease;
}

.btn-outline-cyan:hover {
    background-color: var(--accent-cyan) !important;
    color: var(--canvas-deep) !important;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.3);
}

.btn-outline-secondary {
    background-color: transparent !important;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border-razor) !important;
    font-weight: 600 !important;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.btn-outline-secondary:hover {
    background-color: var(--canvas-surface) !important;
    border-color: var(--text-muted) !important;
    color: var(--text-primary) !important;
}

/* Code Terminal Mockup */
.code-terminal {
    background-color: var(--canvas-terminal) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.terminal-header {
    background-color: rgba(9, 11, 14, 0.85) !important;
    border-bottom: 1px solid var(--border-razor) !important;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
    margin-right: 5px;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted) !important;
}

.terminal-body {
    font-family: var(--font-mono) !important;
    font-size: 0.9rem;
    color: var(--text-secondary) !important;
    background-color: var(--canvas-terminal) !important;
}

.terminal-body pre,
.terminal-body code {
    font-family: var(--font-mono) !important;
    font-variant-numeric: tabular-nums;
    color: var(--text-secondary) !important;
}

/* ==========================================================================
   Feature Cards, Open Source & Legacy Components
   ========================================================================== */
.features-section {
    background-color: var(--canvas-subtle) !important;
    border-top: 1px solid var(--border-razor) !important;
    border-bottom: 1px solid var(--border-razor) !important;
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.feature-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    padding: 2.5rem 2rem;
    height: 100%;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color) !important;
    box-shadow: var(--shadow-card-hover) !important;
}

.feature-icon {
    font-size: 2.25rem;
    color: var(--accent-color);
}

.open-source-section {
    background: radial-gradient(circle at 90% 10%, rgba(102, 252, 241, 0.02) 0%, transparent 40%);
}

.os-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: border-color 0.25s ease, transform 0.25s ease, box-shadow 0.25s ease;
}

.os-card-link {
    color: inherit;
    text-decoration: none;
    display: block;
    height: 100%;
}

.os-card-link:hover .os-card {
    border-color: var(--accent-color) !important;
    box-shadow: var(--shadow-card-hover) !important;
    transform: translateY(-3px);
}

.os-card-link:hover .os-github-link {
    color: var(--accent-color) !important;
}

.os-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.os-title {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.os-github-link {
    color: var(--text-muted) !important;
    font-size: 1.25rem;
    transition: color 0.2s ease;
}

.os-github-link:hover {
    color: var(--accent-color) !important;
}

.os-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.os-footer {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.badge-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background-color: var(--canvas-subtle) !important;
    color: var(--text-secondary);
    padding: 0.25em 0.6em;
    border-radius: 3px;
    border: 1px solid var(--border-razor) !important;
}

/* Footer Custom */
.footer {
    background-color: var(--canvas-subtle) !important;
    border-top: 1px solid var(--border-razor) !important;
}

.footer-links a {
    color: var(--text-muted) !important;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.footer-links a:hover {
    color: var(--accent-color) !important;
}

/* Documentation Tabs Styling */
.docs-section {
    background-color: var(--canvas-deep) !important;
    border-bottom: 1px solid var(--border-razor) !important;
}

.nav-pills-custom .nav-link {
    color: var(--text-secondary);
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    margin-bottom: 0.5rem;
    text-align: left;
    font-weight: 500;
    transition: all 0.2s ease;
}

.nav-pills-custom .nav-link:hover {
    color: var(--accent-color);
    border-color: var(--accent-hover);
}

.nav-pills-custom .nav-link.active {
    color: var(--canvas-deep) !important;
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    font-weight: 700;
}

.doc-tab-content {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    min-height: 300px;
}

.doc-tab-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.code-block {
    background-color: var(--canvas-terminal) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 4px;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-primary);
    overflow-x: auto;
}

.code-block code {
    color: var(--accent-color);
}

.table-dark-custom {
    --bs-table-bg: var(--canvas-surface) !important;
    --bs-table-border-color: var(--border-razor) !important;
    --bs-table-color: var(--text-secondary) !important;
    font-size: 0.9rem;
}

.table-dark-custom th {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Equal-Dignity Project Card Component (.project-card)
   ========================================================================== */
#ecosystem-grid,
.ecosystem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    align-items: stretch;
}

.project-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--canvas-surface, #161b22);
    border: 1px solid var(--border-razor, #30363d);
    border-radius: 12px;
    padding: 1.25rem 1.15rem 1.35rem;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                border-color 0.25s cubic-bezier(0.16, 1, 0.3, 1),
                box-shadow 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Glowing Top Accent Line */
.project-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan, #66fcf1), transparent);
    opacity: 0;
    transition: opacity 0.25s ease;
    z-index: 2;
}

.project-card:hover,
.project-card:focus-within {
    transform: translateY(-4px);
    border-color: var(--accent-cyan, #66fcf1) !important;
    box-shadow: var(--shadow-card-hover) !important;
}

.project-card:hover::before,
.project-card:focus-within::before {
    opacity: 1;
}

.project-card .card-header-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.85rem;
    background: transparent;
    border: none;
    padding: 0;
}

.project-card .card-gh-link {
    color: var(--text-muted, #9ea7b3);
    font-size: 1.15rem;
    transition: color 0.2s ease, transform 0.2s ease;
    display: inline-flex;
    align-items: center;
    padding: 0.2rem;
}

.project-card .card-gh-link:hover,
.project-card .card-gh-link:focus-visible {
    color: var(--accent-cyan, #66fcf1);
    transform: scale(1.1);
    outline: none;
}

.project-card .card-title {
    font-family: var(--font-heading, 'Space Grotesk', sans-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary, #f0f6fc);
    letter-spacing: -0.3px;
    margin: 0.75rem 0 0.2rem 0;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.project-card .card-subtitle {
    font-family: var(--font-mono, 'Fira Code', monospace);
    font-size: 0.76rem;
    color: var(--text-muted, #9ea7b3);
    margin-bottom: 0.75rem;
    font-weight: 400;
}

.project-card .card-summary {
    font-size: 0.88rem;
    color: var(--text-secondary, #c9d1d9);
    line-height: 1.55;
    margin-bottom: 1rem;
    flex-grow: 1; /* Pushes metrics and links to uniform bottom baseline */
}

.project-card .card-metrics {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    background-color: var(--canvas-subtle, #0d1117);
    border: 1px solid var(--border-grid, #21262d);
    border-radius: 6px;
    padding: 0.45rem 0.75rem;
    font-family: var(--font-mono, 'Fira Code', monospace);
    font-size: 0.78rem;
    color: var(--text-primary, #f0f6fc);
    margin-bottom: 0.85rem;
}

.project-card .card-metrics .metric-icon {
    color: var(--accent-cyan, #66fcf1);
    font-size: 0.85rem;
}

.project-card .card-metrics .metric-value {
    color: var(--accent-cyan, #66fcf1);
    font-weight: 700;
}

.project-card .card-metrics .metric-divider {
    color: var(--text-muted, #9ea7b3);
    opacity: 0.7;
}

.project-card .card-metrics .metric-zero-alloc {
    color: var(--pillar-compute, #34d399);
    font-weight: 600;
}

.project-card .card-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.32rem;
    border-top: 1px solid var(--border-grid, #21262d);
    padding-top: 0.85rem;
    margin-top: auto;
}

.project-card .card-link-btn {
    font-family: var(--font-mono, 'Fira Code', monospace);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.32rem 0.42rem;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    flex: 1 1 auto;
    min-width: 0;
    white-space: nowrap;
    justify-content: center;
}

.project-card .card-link-btn-repo {
    background-color: var(--canvas-subtle, #0d1117);
    color: var(--text-secondary, #c9d1d9);
    border: 1px solid var(--border-razor, #30363d);
}

.project-card .card-link-btn-repo:hover {
    color: var(--accent-cyan, #66fcf1);
    border-color: var(--accent-cyan, #66fcf1);
    background-color: rgba(102, 252, 241, 0.05);
}

.project-card .card-link-btn-doc {
    background-color: rgba(102, 252, 241, 0.08);
    color: var(--accent-cyan, #66fcf1);
    border: 1px solid rgba(102, 252, 241, 0.3);
}

.project-card .card-link-btn-doc:hover {
    background-color: var(--accent-cyan, #66fcf1);
    color: var(--canvas-deep, #090b0e);
    font-weight: 700;
}

/* ==========================================================================
   Bespoke SVG Architectural Diagram Container (.card-diagram)
   ========================================================================== */
.card-diagram {
    width: 100%;
    aspect-ratio: 800 / 320;
    background-color: var(--canvas-subtle, #0d1117);
    border: 1px solid var(--border-grid, #21262d);
    border-radius: 8px;
    margin-bottom: 0.85rem;
    position: relative;
    overflow: hidden;
    cursor: pointer;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

@supports not (aspect-ratio: 800 / 320) {
    .card-diagram {
        height: 0;
        padding-top: 40%;
        position: relative;
    }
    .card-diagram svg {
        position: absolute;
        top: 0;
        left: 0;
    }
}

.card-diagram:hover,
.card-diagram:focus-visible {
    border-color: rgba(102, 252, 241, 0.5) !important;
    box-shadow: 0 0 16px rgba(102, 252, 241, 0.15) !important;
    outline: none;
}

.card-diagram svg {
    width: 100%;
    height: 100%;
    display: block;
    shape-rendering: geometricPrecision;
    text-rendering: geometricPrecision;
    font-family: var(--font-sans, 'Inter', sans-serif);
}

.card-diagram .diagram-inspect-cue {
    position: absolute;
    bottom: 0.45rem;
    right: 0.45rem;
    background: rgba(9, 11, 14, 0.9);
    border: 1px solid var(--border-razor, #30363d);
    color: var(--accent-cyan, #66fcf1);
    font-family: var(--font-mono, 'Fira Code', monospace);
    font-size: 0.68rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    backdrop-filter: blur(4px);
}

.card-diagram:hover .diagram-inspect-cue,
.card-diagram:focus-visible .diagram-inspect-cue {
    opacity: 1;
    transform: translateY(0);
    border-color: var(--accent-cyan, #66fcf1);
}

/* Standardized SVG Palette Classes */
.card-diagram .svg-accent-cyan   { stroke: #66FCF1; fill: #66FCF1; }
.card-diagram .svg-accent-purple { stroke: #BA9BF7; fill: #BA9BF7; }
.card-diagram .svg-accent-green  { stroke: #34D399; fill: #34D399; }
.card-diagram .svg-accent-amber  { stroke: #FFB74D; fill: #FFB74D; }
.card-diagram .svg-accent-blue   { stroke: #70B8FF; fill: #70B8FF; }
.card-diagram .svg-text-primary  { fill: #F0F6FC; }
.card-diagram .svg-text-muted    { fill: #9EA7B3; }
.card-diagram .svg-stroke-grid   { stroke: #21262D; stroke-width: 1; }
.card-diagram .svg-node-bg       { fill: #161B22; stroke: #30363D; stroke-width: 1.5; }

/* ==========================================================================
   Code Snippet & Copy Button Widget (.code-snippet-container)
   ========================================================================== */
.code-snippet-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: var(--canvas-subtle, #0d1117);
    border: 1px solid var(--border-razor, #30363d);
    border-radius: 6px;
    padding: 0.35rem 0.5rem 0.35rem 0.75rem;
    margin: 0.75rem 0;
    font-family: var(--font-mono, 'Fira Code', monospace);
    font-size: 0.78rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.code-snippet-container:focus-within,
.code-snippet-container:hover {
    border-color: rgba(102, 252, 241, 0.4);
}

.code-snippet-container pre {
    min-width: 0;
    margin: 0;
    padding: 0;
    overflow-x: auto;
    flex-grow: 1;
    white-space: nowrap;
    scrollbar-width: none;
}

.code-snippet-container pre::-webkit-scrollbar {
    display: none;
}

.code-snippet-container code {
    color: var(--accent-cyan, #66fcf1);
    font-family: inherit;
    font-size: inherit;
    user-select: all;
}

.btn-copy-code {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-muted, #9ea7b3);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.82rem;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: all 0.2s ease;
    flex-shrink: 0;
    min-height: 28px;
    font-family: var(--font-mono, 'Fira Code', monospace);
    line-height: 1;
}

.btn-copy-code:hover {
    color: var(--accent-cyan, #66fcf1);
    background-color: rgba(102, 252, 241, 0.1);
    border-color: rgba(102, 252, 241, 0.3);
}

.btn-copy-code:focus-visible {
    outline: 2px solid var(--accent-cyan, #66fcf1);
    outline-offset: 1px;
}

.btn-copy-code.copied {
    color: var(--pillar-compute, #34d399) !important;
    background-color: rgba(52, 211, 153, 0.08) !important;
    border-color: rgba(52, 211, 153, 0.4) !important;
    font-weight: 600;
}

.btn-copy-code .copy-icon-success {
    display: none;
}

.btn-copy-code.copied .copy-icon-default {
    display: none;
}

.btn-copy-code.copied .copy-icon-success {
    display: inline-block;
}

/* ==========================================================================
   Diagram Inspector Modal (.modal-obsidian)
   ========================================================================== */
.modal-obsidian .modal-dialog {
    max-width: 900px;
}

.modal-obsidian .modal-content {
    background-color: var(--canvas-surface, #161b22);
    border: 1px solid var(--accent-cyan, #66fcf1);
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.85),
                0 0 30px rgba(102, 252, 241, 0.2);
    color: var(--text-primary, #f0f6fc);
}

.modal-obsidian .modal-header {
    background-color: var(--canvas-subtle, #0d1117);
    border-bottom: 1px solid var(--border-razor, #30363d);
    padding: 1.25rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-obsidian .modal-title {
    font-family: var(--font-heading, 'Space Grotesk', sans-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary, #f0f6fc);
    margin: 0;
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.modal-obsidian .btn-close-obsidian {
    background: transparent;
    border: none;
    color: var(--text-muted, #9ea7b3);
    font-size: 1.25rem;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: color 0.2s ease, transform 0.2s ease;
}

.modal-obsidian .btn-close-obsidian:hover {
    color: var(--accent-cyan, #66fcf1);
    transform: scale(1.15);
}

.modal-obsidian .modal-body {
    padding: 1.75rem;
}

.modal-diagram-stage {
    background-color: var(--canvas-deep, #090b0e);
    border: 1px solid var(--border-razor, #30363d);
    border-radius: 8px;
    padding: 1.25rem;
    margin-bottom: 1.5rem;
    aspect-ratio: 800 / 320;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-diagram-stage svg {
    width: 100%;
    height: 100%;
    display: block;
}

.modal-breakdown-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: 1.25rem;
}

.modal-breakdown-card {
    background-color: var(--canvas-subtle, #0d1117);
    border: 1px solid var(--border-grid, #21262d);
    border-left: 3px solid var(--accent-cyan, #66fcf1);
    border-radius: 6px;
    padding: 1rem 1.15rem;
}

.modal-breakdown-card .breakdown-title {
    font-family: var(--font-heading, 'Space Grotesk', sans-serif);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary, #f0f6fc);
    margin-bottom: 0.35rem;
}

.modal-breakdown-card .breakdown-desc {
    font-size: 0.84rem;
    color: var(--text-secondary, #c9d1d9);
    line-height: 1.5;
    margin: 0;
}

/* ==========================================================================
   Glacier Ecosystem Central Documentation Hub Styles
   ========================================================================== */
.hub-main-tabs {
    gap: 0.5rem;
    padding: 0.5rem;
    background-color: var(--canvas-glass) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    backdrop-filter: var(--backdrop-blur) !important;
}

.hub-main-tabs .nav-link {
    color: var(--text-secondary);
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 0.65rem 1.15rem;
    transition: all 0.2s ease;
}

.hub-main-tabs .nav-link:hover {
    color: var(--accent-color);
    background-color: rgba(102, 252, 241, 0.05);
    border-color: rgba(102, 252, 241, 0.2);
}

.hub-main-tabs .nav-link.active {
    color: var(--canvas-deep) !important;
    background-color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.3);
    font-weight: 700;
}

.hub-sub-tabs {
    gap: 0.35rem;
    border-bottom: 1px solid var(--border-razor) !important;
    padding-bottom: 0.5rem;
    margin-bottom: 1.5rem;
}

.hub-sub-tabs .nav-link {
    color: var(--text-muted) !important;
    background-color: var(--canvas-deep) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 4px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    padding: 0.4rem 0.85rem;
    transition: all 0.2s ease;
}

.hub-sub-tabs .nav-link:hover {
    color: var(--text-primary) !important;
    border-color: var(--accent-hover);
}

.hub-sub-tabs .nav-link.active {
    color: var(--accent-color) !important;
    background-color: rgba(102, 252, 241, 0.1) !important;
    border-color: var(--accent-color) !important;
}

.hub-content-pane {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow-card);
}

.diataxis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.diataxis-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    padding: 1.5rem;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.diataxis-icon {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
}

.rule-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-left: 3px solid var(--accent-color) !important;
    border-radius: 4px;
    padding: 1rem 1.25rem;
    margin-bottom: 1rem;
}

.rule-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-color);
}

.vocab-table {
    --bs-table-bg: var(--canvas-surface) !important;
    --bs-table-border-color: var(--border-razor) !important;
    --bs-table-color: var(--text-secondary) !important;
}

.vocab-table th, .vocab-table td {
    padding: 0.6rem 0.85rem;
}

.vocab-table th {
    color: var(--text-primary);
    font-weight: 600;
    border-bottom: 2px solid var(--border-razor) !important;
}

.text-danger-ste {
    color: #FFA198 !important; /* High-contrast coral: 8.92:1 AAA */
    text-decoration: line-through;
}

.text-success-ste {
    color: var(--pillar-compute) !important; /* #34D399: 9.00:1 AAA */
    font-weight: 600;
}

.repo-filter-wrapper {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
}

.repo-search-input {
    background-color: var(--canvas-subtle) !important;
    border: 1px solid var(--border-razor) !important;
    color: var(--text-primary) !important;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    border-radius: 4px;
    padding: 0.6rem 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.repo-search-input:focus {
    background-color: var(--canvas-subtle) !important;
    border-color: var(--accent-color) !important;
    color: var(--text-primary) !important;
    box-shadow: 0 0 10px rgba(102, 252, 241, 0.25);
    outline: none;
}

.pillar-filter-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-pill {
    background-color: var(--canvas-subtle) !important;
    border: 1px solid var(--border-razor) !important;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.75rem;
    border-radius: 50rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.filter-pill.active {
    background-color: rgba(102, 252, 241, 0.15) !important;
    border-color: var(--accent-color) !important;
    color: var(--accent-color) !important;
    font-weight: 700;
}

/* 35-Repo Matrix Grid */
.matrix-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}

.matrix-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.matrix-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.matrix-repo-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.pillar-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2em 0.6em;
    border-radius: 3px;
    font-weight: 600;
}

.pillar-analytics {
    background-color: var(--pillar-analytics-bg) !important;
    color: var(--pillar-analytics) !important;
    border: 1px solid var(--pillar-analytics-border) !important;
}

.pillar-search {
    background-color: var(--pillar-search-bg) !important;
    color: var(--pillar-search) !important;
    border: 1px solid var(--pillar-search-border) !important;
}

.pillar-ai,
.pillar-ml {
    background-color: var(--pillar-ml-bg) !important;
    color: var(--pillar-ml) !important;
    border: 1px solid var(--pillar-ml-border) !important;
}

.pillar-compute {
    background-color: var(--pillar-compute-bg) !important;
    color: var(--pillar-compute) !important;
    border: 1px solid var(--pillar-compute-border) !important;
}

.pillar-tools {
    background-color: var(--pillar-tools-bg) !important;
    color: var(--pillar-tools) !important;
    border: 1px solid var(--pillar-tools-border) !important;
}

.matrix-card-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.matrix-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    margin-bottom: 1rem;
}

.matrix-links {
    display: flex;
    gap: 0.5rem;
    border-top: 1px solid var(--border-grid, #21262d);
    padding-top: 0.75rem;
}

.matrix-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
    text-decoration: none;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.matrix-btn-gh {
    background-color: var(--canvas-subtle) !important;
    color: var(--text-secondary);
    border: 1px solid var(--border-razor) !important;
}

.matrix-btn-gh:hover {
    color: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
}

.matrix-btn-doc {
    background-color: rgba(102, 252, 241, 0.08) !important;
    color: var(--accent-color) !important;
    border: 1px solid rgba(102, 252, 241, 0.25) !important;
}

.matrix-btn-doc:hover {
    background-color: var(--accent-color) !important;
    color: var(--canvas-deep) !important;
}

.matrix-btn-pkg {
    background-color: rgba(133, 196, 255, 0.08) !important;
    color: var(--pillar-tools) !important;
    border: 1px solid rgba(133, 196, 255, 0.25) !important;
}

.matrix-btn-pkg:hover {
    background-color: var(--pillar-tools) !important;
    color: var(--canvas-deep) !important;
}

/* Laymen Metaphor Card */
.metaphor-card {
    background: linear-gradient(135deg, rgba(102, 252, 241, 0.05) 0%, rgba(22, 27, 34, 0.95) 100%) !important;
    border: 1px solid rgba(102, 252, 241, 0.3) !important;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.metaphor-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--accent-color);
}

.metaphor-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.metaphor-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.metaphor-body {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Interactive Architecture Diagram Styling */
.interactive-diagram-canvas {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    position: relative;
}

.diagram-step-flow {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.diag-step-node {
    background-color: var(--canvas-subtle) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    padding: 0.85rem 1.15rem;
    cursor: pointer;
    transition: all 0.25s ease;
    text-align: center;
    min-width: 170px;
    user-select: none;
}

.diag-step-node:hover {
    border-color: var(--accent-color) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 252, 241, 0.15);
}

.diag-step-node.active {
    background-color: rgba(102, 252, 241, 0.12) !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 0 15px rgba(102, 252, 241, 0.25);
}

.diag-step-icon {
    font-size: 1.35rem;
    color: var(--accent-color);
    margin-bottom: 0.35rem;
}

.diag-step-title {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.diag-step-sub {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted) !important;
    margin-top: 0.2rem;
}

.diag-arrow {
    color: var(--accent-color);
    font-size: 1.25rem;
    opacity: 0.7;
}

/* Diagram Node Inspector Box */
.diag-inspector-box {
    background-color: var(--canvas-subtle) !important;
    border: 1px solid var(--border-razor) !important;
    border-left: 3px solid var(--accent-color) !important;
    border-radius: 6px;
    padding: 1.25rem;
}

.diag-inspector-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.diag-inspector-title {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.diag-inspector-badge {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background-color: rgba(102, 252, 241, 0.1) !important;
    color: var(--accent-color) !important;
    border: 1px solid rgba(102, 252, 241, 0.2) !important;
    padding: 0.2em 0.6em;
    border-radius: 3px;
}

/* Scientific Concept Index Cards */
.concept-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 1.25rem;
}

.concept-card {
    background-color: var(--canvas-surface) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.concept-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
}

.concept-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.math-preview {
    background-color: var(--canvas-deep) !important;
    border: 1px solid var(--border-grid, #21262d) !important;
    border-radius: 4px;
    padding: 0.6rem 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent-color);
    margin: 0.75rem 0;
    overflow-x: auto;
}

.concept-glacier-anchor {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: #FFB74D !important;
    background-color: rgba(255, 183, 77, 0.1) !important;
    border: 1px solid rgba(255, 183, 77, 0.3) !important;
    padding: 0.3em 0.6em;
    border-radius: 3px;
    margin-bottom: 0.75rem;
    display: inline-block;
}

.concept-citation-list {
    margin-top: 1rem;
    border-top: 1px solid var(--border-grid, #21262d) !important;
    padding-top: 0.75rem;
}

.citation-item {
    font-size: 0.8rem;
    color: var(--text-muted) !important;
    margin-bottom: 0.4rem;
}

.citation-item a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
}

.citation-item a:hover {
    text-decoration: underline;
}

/* Starter Kit Template Preview */
.template-viewer {
    background-color: var(--canvas-deep) !important;
    border: 1px solid var(--border-razor) !important;
    border-radius: 6px;
    overflow: hidden;
}

.template-viewer-toolbar {
    background-color: var(--canvas-subtle) !important;
    border-bottom: 1px solid var(--border-razor) !important;
    padding: 0.75rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.template-code-box {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-secondary);
    background-color: var(--canvas-deep) !important;
    padding: 1.25rem;
    max-height: 480px;
    overflow-y: auto;
    white-space: pre;
    line-height: 1.5;
}

/* Toast Notification for Clipboard Copy */
.copy-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--canvas-surface) !important;
    color: var(--accent-color) !important;
    border: 1px solid var(--accent-color) !important;
    border-radius: 6px;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.7), 0 0 15px rgba(102, 252, 241, 0.3);
    z-index: 9999;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.copy-toast.show {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   GLACIER DEVELOPER PORTAL — OBSIDIAN ICE RESPONSIVE MEDIA QUERIES
   Certified WCAG 2.1 AAA & Touch Target Accessibility (>= 44x44px)
   Breakpoints: Mobile XS (<576px), Mobile (<768px), Tablet (768-1199px),
                Desktop (>=1200px), Ultra-Wide (>=1600px)
   ========================================================================== */

/* --------------------------------------------------------------------------
   0. Global Overflow Containment
   -------------------------------------------------------------------------- */
.code-terminal,
.terminal-body,
.code-block,
.template-code-box,
.code-snippet-container pre,
.math-preview {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin-bottom: 1rem;
}

/* --------------------------------------------------------------------------
   1. Small Mobile Devices (@media max-width: 576px)
   -------------------------------------------------------------------------- */
@media (max-width: 576px) {
    .hero-title {
        font-size: 1.85rem !important;
        line-height: 1.25 !important;
        letter-spacing: -0.5px;
    }

    .hero-subtitle {
        font-size: 0.95rem !important;
        line-height: 1.5;
    }

    .hero-section {
        padding: 3.5rem 0 2rem !important;
    }

    .section-title {
        font-size: 1.5rem !important;
    }

    .section-subtitle {
        font-size: 0.9rem !important;
    }

    .feature-card,
    .os-card,
    .project-card,
    .matrix-card,
    .concept-card,
    .diataxis-card {
        padding: 0.85rem !important;
    }

    .hub-content-pane {
        padding: 1rem 0.75rem !important;
    }

    .terminal-body pre {
        font-size: 0.68rem !important;
    }

    .btn-cyan,
    .btn-outline-cyan,
    .btn-outline-secondary,
    .btn-warning {
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/* --------------------------------------------------------------------------
   2. Mobile Viewports Standard (@media max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    /* Typography Scaling */
    .hero-title {
        font-size: 2.25rem !important;
        line-height: 1.2 !important;
        letter-spacing: -0.5px;
    }

    .hero-subtitle {
        font-size: 1.05rem !important;
        line-height: 1.5;
    }

    .hero-section {
        padding: 4.5rem 0 2.5rem;
    }

    .section-title {
        font-size: 1.75rem !important;
        letter-spacing: -0.5px;
    }

    .section-subtitle {
        font-size: 0.95rem;
        margin-bottom: 1.5rem;
    }

    h1 { font-size: 2.0rem !important; }
    h2 { font-size: 1.65rem !important; }
    h3 { font-size: 1.35rem !important; }
    h4 { font-size: 1.15rem !important; }
    h5 { font-size: 1.0rem !important; }

    /* Card Grids: Strict 1-Column Layout */
    #ecosystem-grid,
    .ecosystem-grid,
    .matrix-grid,
    .concept-grid,
    .diataxis-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
        width: 100% !important;
    }

    /* Card Padding Normalization */
    .feature-card,
    .os-card,
    .project-card,
    .matrix-card {
        padding: 1.15rem 1rem !important;
    }

    .hub-content-pane {
        padding: 1.25rem 0.85rem !important;
    }

    .diataxis-card,
    .metaphor-card,
    .concept-card,
    .interactive-diagram-canvas {
        padding: 1rem 0.85rem !important;
    }

    /* Swipeable Hub Navigation Tabs */
    .hub-main-tabs,
    .hub-sub-tabs {
        display: flex;
        flex-wrap: nowrap !important;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
        padding: 0.35rem !important;
        gap: 0.4rem !important;
        width: 100%;
        border-radius: 8px;
    }

    .hub-main-tabs::-webkit-scrollbar,
    .hub-sub-tabs::-webkit-scrollbar {
        display: none;
    }

    .hub-main-tabs .nav-item,
    .hub-sub-tabs .nav-item {
        flex-shrink: 0;
    }

    .hub-main-tabs .nav-link,
    .hub-sub-tabs .nav-link {
        white-space: nowrap;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        padding: 0.6rem 0.95rem;
        font-size: 0.85rem;
    }

    /* Touch Targets >= 44x44px */
    .navbar-toggler {
        min-width: 44px;
        min-height: 44px;
        padding: 0.5rem;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .filter-pill {
        min-height: 44px;
        min-width: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.5rem 0.85rem;
        font-size: 0.825rem;
    }

    .matrix-btn,
    .matrix-btn-gh,
    .matrix-btn-doc,
    .matrix-btn-pkg {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.5rem 0.85rem;
        font-size: 0.825rem;
    }

    .btn-copy-code {
        min-width: 44px;
        min-height: 44px;
        padding: 0.5rem;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .btn-cyan,
    .btn-outline-cyan,
    .btn-outline-secondary,
    .btn-warning {
        min-height: 44px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 0.65rem 1.25rem;
    }

    /* Mobile Search Bar (16px font prevents iOS zoom) */
    .repo-search-input {
        font-size: 16px !important;
        min-height: 44px;
        width: 100%;
    }

    .pillar-filter-pills {
        gap: 0.4rem;
        justify-content: flex-start;
    }

    .header-sponsor-group {
        border-left: none;
        padding-left: 0;
        margin-left: 0;
        margin-top: 0.75rem;
        justify-content: flex-start;
    }

    /* Diagram Step Flow: Vertical Waterfall */
    .diagram-step-flow {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.5rem !important;
    }

    .diag-step-node {
        width: 100% !important;
        min-width: unset !important;
        min-height: 48px;
        padding: 0.75rem 1rem !important;
    }

    .diag-arrow {
        transform: rotate(90deg) !important;
        margin: 0.25rem 0 !important;
        text-align: center;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    /* Template Viewer Mobile Toolbar */
    .template-viewer-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 0.5rem;
    }

    .template-viewer-toolbar .btn-group {
        width: 100%;
    }

    .template-viewer-toolbar .btn {
        min-height: 44px;
        flex: 1;
    }

    .template-code-box {
        font-size: 0.8rem;
        padding: 0.85rem;
        max-height: 380px;
    }

    /* Toast Notification Positioning */
    .copy-toast {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        text-align: center;
    }
}

/* --------------------------------------------------------------------------
   3. Tablet & Intermediate Viewports (@media 768px to 1199.98px)
   -------------------------------------------------------------------------- */
@media (min-width: 768px) and (max-width: 1199.98px) {
    .hero-title {
        font-size: 2.75rem;
        line-height: 1.25;
    }

    .hero-subtitle {
        font-size: 1.15rem;
    }

    .hero-section {
        padding: 6rem 0 4rem;
    }

    .section-title {
        font-size: 2.0rem;
    }

    /* Card Grids: 2 Columns */
    #ecosystem-grid,
    .ecosystem-grid,
    .matrix-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.25rem;
    }

    .concept-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.25rem;
    }

    .diataxis-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.25rem;
    }

    .diag-step-node {
        min-width: 140px;
        padding: 0.75rem 0.85rem;
    }
}

/* --------------------------------------------------------------------------
   4. Desktop Standard (@media min-width: 1200px)
   -------------------------------------------------------------------------- */
@media (min-width: 1200px) {
    .hero-title {
        font-size: 3.5rem;
        line-height: 1.2;
    }

    .section-title {
        font-size: 2.25rem;
    }

    /* Card Grids: 3 Columns */
    #ecosystem-grid,
    .ecosystem-grid,
    .matrix-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 1.5rem;
    }

    .concept-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 1.5rem;
    }

    .diataxis-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 1.25rem;
    }

    /* Sticky Search & Filter Toolbar */
    .repo-filter-wrapper.sticky-toolbar {
        position: sticky;
        top: 72px;
        z-index: 100;
        backdrop-filter: blur(12px);
        background-color: rgba(9, 11, 14, 0.92);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
        border-color: var(--border-razor);
    }
}

/* --------------------------------------------------------------------------
   5. Ultra-Wide Displays (@media min-width: 1600px)
   -------------------------------------------------------------------------- */
@media (min-width: 1600px) {
    #ecosystem-grid,
    .ecosystem-grid,
    .matrix-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 1.25rem;
    }

    .container {
        max-width: 1720px !important;
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1860px !important;
    }
}

/* --------------------------------------------------------------------------
   6. Accessibility: High Contrast & Reduced Motion Preferences
   -------------------------------------------------------------------------- */
@media (prefers-contrast: more) {
    :root {
        --border-subtle: var(--accent-cyan);
        --border-razor: var(--accent-cyan);
        --text-secondary: var(--text-primary);
        --text-muted: var(--text-primary);
        --text-muted-aaa: var(--text-primary);
    }
}

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


/* ==========================================================================
   Obsidian Ice High-Contrast Surface Panels & Overrides (WCAG AAA)
   ========================================================================== */
.card-obsidian-panel {
    background-color: #12161F !important;
    border: 1px solid #283344 !important;
    border-radius: 8px !important;
    color: #F0F6FC !important;
}

.card-obsidian-panel h4,
.card-obsidian-panel h5,
.card-obsidian-panel h6,
.card-obsidian-panel strong {
    color: #FFFFFF !important;
}

.card-obsidian-panel .text-light,
.card-obsidian-panel .text-white {
    color: #F0F6FC !important;
}

.card-obsidian-panel .text-secondary {
    color: #C9D1D9 !important;
}

.card-obsidian-panel a.text-cyan {
    color: #66FCF1 !important;
    text-decoration: underline;
}

.card-obsidian-panel a.text-cyan:hover {
    color: #FFFFFF !important;
}

/* Hard override: never allow raw Bootstrap bg-primary (#0d6efd) to create low contrast */
.bg-primary {
    background-color: #12161F !important;
    border-color: #283344 !important;
    color: #F0F6FC !important;
}

.bg-primary strong,
.bg-primary h4,
.bg-primary h5,
.bg-primary h6 {
    color: #FFFFFF !important;
}

.bg-primary .text-secondary,
.bg-primary small,
.bg-primary p,
.bg-primary li,
.bg-primary div {
    color: #E2E8F0 !important;
}

.bg-primary .text-success-ste,
.bg-primary .fa-check,
.card-obsidian-panel .fa-check,
.card-obsidian-panel .fa-circle-check {
    color: #66FCF1 !important;
}