@font-face {
            font-family: 'Inter';
            font-style: normal;
            font-weight: 400;
            font-display: swap;
            src: url('/fonts/Inter-Regular.woff2') format('woff2');
        }

        @font-face {
            font-family: 'Inter';
            font-style: normal;
            font-weight: 500;
            font-display: swap;
            src: url('/fonts/Inter-Medium.woff2') format('woff2');
        }

        @font-face {
            font-family: 'Inter';
            font-style: normal;
            font-weight: 600;
            font-display: swap;
            src: url('/fonts/Inter-SemiBold.woff2') format('woff2');
        }

        @font-face {
            font-family: 'Inter';
            font-style: normal;
            font-weight: 700;
            font-display: swap;
            src: url('/fonts/Inter-Bold.woff2') format('woff2');
        }

        @font-face {
            font-family: 'JetBrains Mono';
            font-style: normal;
            font-weight: 400;
            font-display: swap;
            src: url('/fonts/JetBrainsMono-Regular.woff2') format('woff2');
        }

        @font-face {
            font-family: 'JetBrains Mono';
            font-style: normal;
            font-weight: 500;
            font-display: swap;
            src: url('/fonts/JetBrainsMono-Medium.woff2') format('woff2');
        }


        button[data-logo="true"] {
            background: none;
            border: none;
            outline: none;
            box-shadow: none;
            padding: 0;
            cursor: pointer;
            font: inherit;
            color: inherit;
        }

        /* ==========================================================================
           TITAN INDUSTRIAL v3.2 (STRICT MINIMALISM) - THEME SYSTEM
           ========================================================================== */

        /* Smooth scroll + navbar offset for anchor links */
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 80px;
        }

        /* LIGHT THEME (DEFAULT) */
        :root {
            /* Palette: Clean Professional */
            --bg-void: #FAFAFA;
            /* Slightly off-white for depth */
            --bg-panel: #FFFFFF;
            /* Pure white for panels */

            /* Text Contrast - WCAG AAA */
            --fg-primary: #0A0A0A;
            /* Almost black */
            --fg-secondary: #525252;
            /* Neutral gray */
            --fg-tertiary: #6B6B6B;
            /* Lighter gray for meta */

            /* Structural Accents - International Orange */
            --accent-core: #DD2E00;
            /* High visibility orange */
            --accent-dim: #B32400;
            /* Darker interaction state */

            /* Borders */
            --border-subtle: #E5E5E5;
            --border-strong: #D4D4D4;
            --border-accent: rgba(255, 51, 0, 0.4);

            /* Glass effects */
            --glass-bg: rgba(255, 255, 255, 0.95);
            --glass-border: rgba(0, 0, 0, 0.05);
            --grid-opacity: 0.04;

            /* Card/Panel backgrounds */
            --card-bg: #FFFFFF;
            --card-border: #E5E5E5;

            /* Code block styling */
            --code-bg: #F5F5F5;
            --code-border: #E5E5E5;
            --code-fg: #171717;
            --code-keyword: #B53AB3;
            /* Fuchsia for keywords */
            --code-type: #2563EB;
            /* Blue for types */
            --code-string: #16A34A;
            /* Green for strings */
            --code-comment: #6B6B6B;
            /* Neutral comments */
            --code-accent: #CC2900;

            /* Button colors */
            --btn-primary-bg: #0A0A0A;
            --btn-primary-fg: #FFFFFF;
            --btn-primary-border: #0A0A0A;
            --btn-ghost-border: rgba(0, 0, 0, 0.1);

            /* Timing */
            --ease-tech: cubic-bezier(0.2, 0, 0, 1);

            /* Color scheme hint */
            color-scheme: light;
        }

        /* DARK THEME */
        [data-theme="dark"] {
            /* Palette: Utilitarian Monochrome */
            --bg-void: #050505;
            /* True Black */
            --bg-panel: #0A0A0A;
            /* Off-Black for hierarchy */

            /* Text Contrast */
            --fg-primary: #EDEDED;
            /* High contrast white */
            --fg-secondary: #A1A1A1;
            /* Readable gray */
            --fg-tertiary: #8a8a8a;
            /* Muted meta (WCAG AA 5.5:1 on #0a0a0a) */

            /* Structural Accents */
            --accent-core: #FF3300;
            /* International Orange */
            --accent-dim: #B32400;

            /* Borders */
            --border-subtle: #171717;
            /* Very subtle separation */
            --border-strong: #262626;
            /* Structural borders */
            --border-accent: rgba(255, 51, 0, 0.5);

            /* Glass effects */
            --glass-bg: rgba(5, 5, 5, 0.90);
            --glass-border: rgba(255, 255, 255, 0.08);
            --grid-opacity: 0.08;

            /* Card/Panel backgrounds */
            --card-bg: #0A0A0A;
            --card-border: #171717;

            /* Code block styling */
            --code-bg: #0A0A0A;
            --code-border: #171717;
            --code-fg: #D4D4D4;
            --code-keyword: #E879F9;
            --code-type: #60A5FA;
            --code-string: #4ADE80;
            --code-comment: #8a8a8a;
            --code-accent: #FF3300;

            /* Button colors */
            --btn-primary-bg: #EDEDED;
            --btn-primary-fg: #050505;
            --btn-primary-border: #EDEDED;
            --btn-ghost-border: rgba(255, 255, 255, 0.15);

            color-scheme: dark;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        html {
            min-height: 100vh;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            background-color: var(--bg-void);
            color: var(--fg-primary);
            line-height: 1.5;
            overflow-x: hidden;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* Subtle Static Grid - Technical Texture */
        body::before {
            content: "";
            position: fixed;
            inset: 0;
            background-image:
                linear-gradient(var(--border-subtle) 1px, transparent 1px),
                linear-gradient(90deg, var(--border-subtle) 1px, transparent 1px);
            background-size: 60px 60px;
            pointer-events: none;
            z-index: -2;
            opacity: var(--grid-opacity);
        }

        /* Typography: Brutalist & Readable */
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 600;
            letter-spacing: -0.03em;
            color: var(--fg-primary);
        }

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

        /* Navigation Links - Touch Target Compliant (min 44x44px) */
        .link-premium {
            display: inline-flex;
            align-items: center;
            min-height: 44px;
            padding: 0 0.75rem;
        }

        /* Minimal Fade In */
        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(15px);
            }

            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes pulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.5;
            }
        }

        .animate-fade-in {
            animation: fadeIn 0.6s var(--ease-tech) forwards;
        }

        .animate-fade-in-delay-1 {
            animation: fadeIn 0.6s var(--ease-tech) 0.1s forwards;
            opacity: 0;
        }

        .animate-fade-in-delay-2 {
            animation: fadeIn 0.6s var(--ease-tech) 0.2s forwards;
            opacity: 0;
        }

        /* Focus Ring */
        .focus-ring:focus-visible {
            outline: 1px solid var(--accent-core);
            outline-offset: 4px;
        }

        /* Button: Sharp & Responsive */
        .btn-base {
            appearance: none;
            -webkit-appearance: none;
            background: none;
            border: none;
            outline: none;
            box-shadow: none;
            padding: 0;
            margin: 0;
            font: inherit;
            color: inherit;
            cursor: pointer;
            transition: all 0.2s var(--ease-tech);
        }

        .btn-base:hover {
            transform: translateY(-1px);
        }

        .btn-base:active {
            transform: translateY(1px);
            opacity: 0.8;
        }

        /* Scrollbar - theme aware */
        ::-webkit-scrollbar {
            width: 6px;
        }

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

        ::-webkit-scrollbar-thumb {
            background: var(--border-strong);
            border-radius: 0;
        }

        ::-webkit-scrollbar-thumb:hover {
            background: var(--fg-tertiary);
        }

        /* Theme Toggle Button */
        .theme-toggle {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.25rem;
            min-height: 2.25rem;
            padding: 0 0.75rem;
            border: 1px solid var(--glass-border);
            border-radius: 0.5rem;
            background: var(--glass-bg);
            color: var(--fg-secondary);
            cursor: pointer;
            transition: all 0.2s var(--ease-tech);
            font-family: 'JetBrains Mono', monospace;
            font-size: 0.75rem;
            white-space: nowrap;
        }

        .theme-toggle:hover {
            border-color: var(--border-strong);
            color: var(--fg-primary);
        }

        .theme-toggle svg {
            width: 1.125rem;
            height: 1.125rem;
            transition: transform 0.3s var(--ease-tech);
        }

        .theme-toggle:hover svg {
            transform: rotate(15deg);
        }

        /* Smooth theme transition */
        html.theme-transition,
        html.theme-transition *,
        html.theme-transition *::before,
        html.theme-transition *::after {
            transition: background-color 0.3s ease,
                color 0.3s ease,
                border-color 0.3s ease,
                box-shadow 0.3s ease !important;
        }

        /* ==========================================================================
           RESPONSIVE GRID UTILITIES (TITAN v3.2.1)
           ========================================================================== */

        /* Fluid Typography */
        :root {
            --text-hero: clamp(2.5rem, 8vw, 5rem);
            --text-h2: clamp(2rem, 5vw, 3rem);
        }

        /* Hero Grid */
        .hero-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 3rem;
            align-items: center;
        }

        @media (min-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr 1fr;
                gap: 6rem;
            }
        }

        /* Bento Grid */
        .bento-grid {
            display: grid;
            grid-template-columns: 1fr;
            gap: 1.5rem;
        }

        @media (min-width: 768px) {
            .bento-grid {
                grid-template-columns: repeat(3, 1fr);
                grid-template-rows: auto auto;
            }
        }

        /* Bento Items */
        .bento-card {
            background-color: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 2rem;
            transition: border-color 0.2s;
        }

        .bento-span-2 {
            grid-column: span 1;
        }

        @media (min-width: 768px) {
            .bento-span-2 {
                grid-column: span 2;
                grid-row: span 2;
            }
        }

        .bento-span-2 {
            position: relative;
            overflow: hidden;
        }

        .bento-span-2::before {
            content: "";
            position: absolute;
            bottom: -40px;
            right: -40px;
            width: 200px;
            height: 200px;
            background-image:
                repeating-linear-gradient(
                    45deg,
                    var(--border-subtle) 0px,
                    var(--border-subtle) 1px,
                    transparent 1px,
                    transparent 12px
                ),
                repeating-linear-gradient(
                    -45deg,
                    var(--border-subtle) 0px,
                    var(--border-subtle) 1px,
                    transparent 1px,
                    transparent 12px
                );
            opacity: 0.4;
            pointer-events: none;
            mask-image: radial-gradient(circle at bottom right, black 0%, transparent 70%);
            -webkit-mask-image: radial-gradient(circle at bottom right, black 0%, transparent 70%);
        }

        .bento-span-2::after {
            content: "";
            position: absolute;
            bottom: 20px;
            right: 20px;
            width: 24px;
            height: 24px;
            border-right: 2px solid var(--accent-core);
            border-bottom: 2px solid var(--accent-core);
            opacity: 0.5;
            pointer-events: none;
        }

        /* Stats Grid */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0;
        }

        /* On mobile 2x2: add bottom border to first row items */
        @media (max-width: 767px) {
            .stats-grid > *:nth-child(-n+2) {
                border-bottom: 1px solid var(--border-subtle);
                padding-bottom: 1.5rem;
            }
            .stats-grid > *:nth-child(n+3) {
                padding-top: 1.5rem;
            }
            .stats-grid > *:nth-child(2n) {
                border-right: none;
            }
        }

        @media (min-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }

        /* Technical Footer Link List */
        .footer-list {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .footer-link {
            color: var(--fg-secondary);
            font-size: 0.875rem;
            text-decoration: none;
            transition: color 0.2s;
            /* Touch target: min 44x44px */
            display: inline-block;
            min-height: 44px;
            line-height: 44px;
            padding: 0 0.5rem;
            margin: -0.25rem -0.5rem;
        }

        .footer-link:hover {
            color: var(--accent-core);
        }

        .code-keyword { color: var(--code-keyword); }
        .code-string { color: var(--code-string); }
        .code-type { color: var(--code-type); }
        .code-comment { color: var(--code-comment); }
        .code-accent { color: var(--code-accent); }

        /* ==========================================================================
           CSS-IN-RUST UTILITY CLASSES (generated from src/styles/ enums)
           ========================================================================== */

        /* --- Layout: Display --- */
        .d-flex { display: flex; }
        .d-grid { display: grid; }
        .d-inline-flex { display: inline-flex; }
        .d-block { display: block; }
        .d-hidden { display: none; }
        .d-contents { display: contents; }

        /* --- Layout: Position --- */
        .pos-relative { position: relative; }
        .pos-fixed { position: fixed; }
        .pos-absolute { position: absolute; }
        .pos-sticky { position: sticky; }
        .pos-static { position: static; }

        /* --- Layout: Flex --- */
        .flex-row { flex-direction: row; }
        .flex-col { flex-direction: column; }
        .flex-wrap { flex-wrap: wrap; }
        .flex-nowrap { flex-wrap: nowrap; }

        /* --- Layout: Alignment --- */
        .items-center { align-items: center; }
        .items-start { align-items: flex-start; }
        .items-baseline { align-items: baseline; }
        .justify-center { justify-content: center; }
        .justify-between { justify-content: space-between; }

        /* --- Layout: Grid --- */
        .grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
        .grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        .grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
        .grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

        /* --- Layout: Overflow --- */
        .overflow-x-hidden { overflow-x: hidden; }
        .overflow-x-auto { overflow-x: auto; }

        /* --- Layout: Z-Index --- */
        .z-49 { z-index: 49; }
        .z-50 { z-index: 50; }

        /* --- Spacing: Padding --- */
        .p-0_5 { padding: 0.125rem; }
        .p-2 { padding: 0.5rem; }
        .p-3 { padding: 0.75rem; }
        .p-4 { padding: 1rem; }
        .p-5 { padding: 1.25rem; }
        .p-6 { padding: 1.5rem; }
        .p-8 { padding: 2rem; }
        .p-16 { padding: 4rem; }
        .p-24 { padding: 6rem; }
        .p-32 { padding: 8rem; }

        .px-0_5 { padding-left: 0.125rem; padding-right: 0.125rem; }
        .px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
        .px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
        .px-4 { padding-left: 1rem; padding-right: 1rem; }
        .px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
        .px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
        .px-8 { padding-left: 2rem; padding-right: 2rem; }
        .px-16 { padding-left: 4rem; padding-right: 4rem; }
        .px-24 { padding-left: 6rem; padding-right: 6rem; }
        .px-32 { padding-left: 8rem; padding-right: 8rem; }

        .py-0_5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
        .py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
        .py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
        .py-4 { padding-top: 1rem; padding-bottom: 1rem; }
        .py-5 { padding-top: 1.25rem; padding-bottom: 1.25rem; }
        .py-6 { padding-top: 1.5rem; padding-bottom: 1.5rem; }
        .py-8 { padding-top: 2rem; padding-bottom: 2rem; }
        .py-16 { padding-top: 4rem; padding-bottom: 4rem; }
        .py-24 { padding-top: 6rem; padding-bottom: 6rem; }
        .py-32 { padding-top: 8rem; padding-bottom: 8rem; }

        .pt-0_5 { padding-top: 0.125rem; }
        .pt-2 { padding-top: 0.5rem; }
        .pt-3 { padding-top: 0.75rem; }
        .pt-4 { padding-top: 1rem; }
        .pt-5 { padding-top: 1.25rem; }
        .pt-6 { padding-top: 1.5rem; }
        .pt-8 { padding-top: 2rem; }
        .pt-16 { padding-top: 4rem; }
        .pt-24 { padding-top: 6rem; }
        .pt-32 { padding-top: 8rem; }

        .pr-0_5 { padding-right: 0.125rem; }
        .pr-2 { padding-right: 0.5rem; }
        .pr-3 { padding-right: 0.75rem; }
        .pr-4 { padding-right: 1rem; }
        .pr-5 { padding-right: 1.25rem; }
        .pr-6 { padding-right: 1.5rem; }
        .pr-8 { padding-right: 2rem; }
        .pr-16 { padding-right: 4rem; }
        .pr-24 { padding-right: 6rem; }
        .pr-32 { padding-right: 8rem; }

        .pb-0_5 { padding-bottom: 0.125rem; }
        .pb-2 { padding-bottom: 0.5rem; }
        .pb-3 { padding-bottom: 0.75rem; }
        .pb-4 { padding-bottom: 1rem; }
        .pb-5 { padding-bottom: 1.25rem; }
        .pb-6 { padding-bottom: 1.5rem; }
        .pb-8 { padding-bottom: 2rem; }
        .pb-16 { padding-bottom: 4rem; }
        .pb-24 { padding-bottom: 6rem; }
        .pb-32 { padding-bottom: 8rem; }

        .pl-0_5 { padding-left: 0.125rem; }
        .pl-2 { padding-left: 0.5rem; }
        .pl-3 { padding-left: 0.75rem; }
        .pl-4 { padding-left: 1rem; }
        .pl-5 { padding-left: 1.25rem; }
        .pl-6 { padding-left: 1.5rem; }
        .pl-8 { padding-left: 2rem; }
        .pl-16 { padding-left: 4rem; }
        .pl-24 { padding-left: 6rem; }
        .pl-32 { padding-left: 8rem; }

        /* --- Spacing: Margin --- */
        .m-0 { margin: 0; }
        .m-1 { margin: 0.25rem; }
        .m-2 { margin: 0.5rem; }
        .m-3 { margin: 0.75rem; }
        .m-4 { margin: 1rem; }
        .m-6 { margin: 1.5rem; }
        .m-8 { margin: 2rem; }
        .m-10 { margin: 2.5rem; }
        .m-12 { margin: 3rem; }
        .m-16 { margin: 4rem; }
        .m-auto { margin: auto; }

        .mx-0 { margin-left: 0; margin-right: 0; }
        .mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
        .mx-2 { margin-left: 0.5rem; margin-right: 0.5rem; }
        .mx-3 { margin-left: 0.75rem; margin-right: 0.75rem; }
        .mx-4 { margin-left: 1rem; margin-right: 1rem; }
        .mx-6 { margin-left: 1.5rem; margin-right: 1.5rem; }
        .mx-8 { margin-left: 2rem; margin-right: 2rem; }
        .mx-10 { margin-left: 2.5rem; margin-right: 2.5rem; }
        .mx-12 { margin-left: 3rem; margin-right: 3rem; }
        .mx-16 { margin-left: 4rem; margin-right: 4rem; }
        .mx-auto { margin-left: auto; margin-right: auto; }

        .my-0 { margin-top: 0; margin-bottom: 0; }
        .my-1 { margin-top: 0.25rem; margin-bottom: 0.25rem; }
        .my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
        .my-3 { margin-top: 0.75rem; margin-bottom: 0.75rem; }
        .my-4 { margin-top: 1rem; margin-bottom: 1rem; }
        .my-6 { margin-top: 1.5rem; margin-bottom: 1.5rem; }
        .my-8 { margin-top: 2rem; margin-bottom: 2rem; }
        .my-10 { margin-top: 2.5rem; margin-bottom: 2.5rem; }
        .my-12 { margin-top: 3rem; margin-bottom: 3rem; }
        .my-16 { margin-top: 4rem; margin-bottom: 4rem; }

        .mt-0 { margin-top: 0; }
        .mt-1 { margin-top: 0.25rem; }
        .mt-2 { margin-top: 0.5rem; }
        .mt-3 { margin-top: 0.75rem; }
        .mt-4 { margin-top: 1rem; }
        .mt-6 { margin-top: 1.5rem; }
        .mt-8 { margin-top: 2rem; }
        .mt-10 { margin-top: 2.5rem; }
        .mt-12 { margin-top: 3rem; }
        .mt-16 { margin-top: 4rem; }

        .mr-0 { margin-right: 0; }
        .mr-1 { margin-right: 0.25rem; }
        .mr-2 { margin-right: 0.5rem; }
        .mr-3 { margin-right: 0.75rem; }
        .mr-4 { margin-right: 1rem; }
        .mr-6 { margin-right: 1.5rem; }
        .mr-8 { margin-right: 2rem; }
        .mr-10 { margin-right: 2.5rem; }
        .mr-12 { margin-right: 3rem; }
        .mr-16 { margin-right: 4rem; }

        .mb-0 { margin-bottom: 0; }
        .mb-1 { margin-bottom: 0.25rem; }
        .mb-2 { margin-bottom: 0.5rem; }
        .mb-3 { margin-bottom: 0.75rem; }
        .mb-4 { margin-bottom: 1rem; }
        .mb-6 { margin-bottom: 1.5rem; }
        .mb-8 { margin-bottom: 2rem; }
        .mb-10 { margin-bottom: 2.5rem; }
        .mb-12 { margin-bottom: 3rem; }
        .mb-16 { margin-bottom: 4rem; }

        .ml-0 { margin-left: 0; }
        .ml-1 { margin-left: 0.25rem; }
        .ml-2 { margin-left: 0.5rem; }
        .ml-3 { margin-left: 0.75rem; }
        .ml-4 { margin-left: 1rem; }
        .ml-6 { margin-left: 1.5rem; }
        .ml-8 { margin-left: 2rem; }
        .ml-10 { margin-left: 2.5rem; }
        .ml-12 { margin-left: 3rem; }
        .ml-16 { margin-left: 4rem; }

        /* --- Spacing: Gap --- */
        .gap-0 { gap: 0; }
        .gap-2 { gap: 0.5rem; }
        .gap-3 { gap: 0.75rem; }
        .gap-4 { gap: 1rem; }
        .gap-6 { gap: 1.5rem; }
        .gap-8 { gap: 2rem; }
        .gap-12 { gap: 3rem; }

        /* --- Typography: Font Size --- */
        .text-xs { font-size: 0.75rem; line-height: 1rem; }
        .text-sm { font-size: 0.875rem; line-height: 1.25rem; }
        .text-base { font-size: 1rem; line-height: 1.5rem; }
        .text-lg { font-size: 1.125rem; line-height: 1.75rem; }
        .text-xl { font-size: 1.25rem; line-height: 1.75rem; }
        .text-2xl { font-size: 1.5rem; line-height: 2rem; }
        .text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
        .text-4xl { font-size: 2.25rem; line-height: 2.5rem; }
        .text-5xl { font-size: 3rem; line-height: 1; }
        .text-6xl { font-size: 3.75rem; line-height: 1; }
        .text-7xl { font-size: 4.5rem; line-height: 1; }
        .text-10px { font-size: 10px; }

        /* --- Typography: Font Weight --- */
        .font-normal { font-weight: 400; }
        .font-medium { font-weight: 500; }
        .font-semibold { font-weight: 600; }
        .font-bold { font-weight: 700; }

        /* --- Typography: Font Family --- */
        .font-sans { font-family: 'Inter', system-ui, -apple-system, sans-serif; }
        .font-mono { font-family: 'JetBrains Mono', monospace; }

        /* --- Typography: Letter Spacing --- */
        .tracking-tighter { letter-spacing: -0.05em; }
        .tracking-tight { letter-spacing: -0.025em; }
        .tracking-widest { letter-spacing: 0.1em; }

        /* --- Typography: Line Height --- */
        .leading-relaxed { line-height: 1.625; }
        .leading-105 { line-height: 1.05; }

        /* --- Typography: Text Transform --- */
        .uppercase { text-transform: uppercase; }
        .lowercase { text-transform: lowercase; }
        .italic { font-style: italic; }

        /* --- Typography: Text Decoration --- */
        .underline { text-decoration: underline; }

        /* --- Typography: Text Align --- */
        .text-left { text-align: left; }

        /* --- Typography: White Space --- */
        .whitespace-nowrap { white-space: nowrap; }

        /* --- Color: Text --- */
        .text-fg { color: var(--fg-primary); }
        .text-fg-secondary { color: var(--fg-secondary); }
        .text-fg-tertiary { color: var(--fg-tertiary); }
        .text-accent { color: var(--accent-core); }
        .text-code-fg { color: var(--code-fg); }
        .text-btn-primary-fg { color: var(--btn-primary-fg); }

        /* --- Color: Background --- */
        .bg-void { background-color: var(--bg-void); }
        .bg-panel { background-color: var(--bg-panel); }
        .bg-accent { background-color: var(--accent-core); }
        .bg-transparent { background-color: transparent; }
        .bg-code { background-color: var(--code-bg); }
        .bg-btn-primary { background-color: var(--btn-primary-bg); }
        .bg-accent-5 { background-color: rgba(255, 51, 0, 0.05); }

        /* --- Color: Border --- */
        .border-subtle { border-color: var(--border-subtle); }
        .border-strong { border-color: var(--border-strong); }
        .border-accent { border-color: var(--accent-core); }
        .border-code { border-color: var(--code-border); }
        .border-accent-30 { border-color: rgba(255, 51, 0, 0.3); }
        .border-btn-primary { border-color: var(--btn-primary-border); }
        .border-btn-ghost { border-color: var(--btn-ghost-border); }

        /* --- Border --- */
        .border { border-width: 1px; border-style: solid; }
        .border-b { border-bottom-width: 1px; border-bottom-style: solid; }
        .border-t { border-top-width: 1px; border-top-style: solid; }
        .border-r { border-right-width: 1px; border-right-style: solid; }
        .border-y { border-top-width: 1px; border-top-style: solid; border-bottom-width: 1px; border-bottom-style: solid; }

        /* --- Border Radius --- */
        .rounded-full { border-radius: 9999px; }
        .rounded-md { border-radius: 0.375rem; }
        .rounded-lg { border-radius: 0.5rem; }

        /* --- Border Collapse --- */
        .border-collapse { border-collapse: collapse; }

        /* --- Sizing: Width --- */
        .w-2 { width: 0.5rem; }
        .w-full { width: 100%; }

        /* --- Sizing: Height --- */
        .h-2 { height: 0.5rem; }
        .h-vh-minus-60 { height: calc(100vh - 60px); }

        /* --- Sizing: Min Width --- */
        .min-w-44px { min-width: 44px; }

        /* --- Sizing: Min Height --- */
        .min-h-screen { min-height: 100vh; }
        .min-h-44px { min-height: 44px; }

        /* --- Sizing: Max Width --- */
        .max-w-xl { max-width: 36rem; }
        .max-w-2xl { max-width: 42rem; }
        .max-w-600 { max-width: 600px; }
        .max-w-1200 { max-width: 1200px; }
        .max-w-32rem { max-width: 32rem; }

        /* --- Sizing: Position Values --- */
        .top-0 { top: 0; }
        .top-60px { top: 60px; }
        .left-0 { left: 0; }

        /* --- Interaction --- */
        .cursor-pointer { cursor: pointer; }

        /* --- Opacity --- */
        .opacity-50 { opacity: 0.5; }
        .opacity-60 { opacity: 0.6; }

        /* --- Transition --- */
        .transition-colors { transition-property: color, background-color, border-color; transition-duration: 200ms; transition-timing-function: var(--ease-tech); }

        /* --- Animation --- */
        .animate-pulse-2s { animation: pulse 2s infinite; }

        /* --- Pseudo States --- */
        .hover-text-accent:hover { color: var(--accent-core); }
        .hover-underline:hover { text-decoration: underline; }
        .hover-border-accent:hover { border-color: var(--accent-core); }
        .focus-border-accent:focus { border-color: var(--accent-core); }
        .focus-outline-none:focus { outline: none; }
        .placeholder-fg-tertiary::placeholder { color: var(--fg-tertiary); }
        .resize-y { resize: vertical; }

        /* --- Responsive: max-md (max-width: 768px) --- */
        @media (max-width: 768px) {
            .max-md\:text-5xl { font-size: 3rem; line-height: 1; }
            .max-md\:text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
            .max-md\:text-xl { font-size: 1.25rem; line-height: 1.75rem; }
            .max-md\:px-5 { padding-left: 1.25rem; padding-right: 1.25rem; }
            .max-md\:py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
            .max-md\:flex-col { flex-direction: column; }
            .max-md\:ml-0 { margin-left: 0; }
            .max-md\:gap-4 { gap: 1rem; }
            .max-md\:d-hidden { display: none; }
        }

        /* --- Responsive: max-600 (max-width: 600px) --- */
        @media (max-width: 600px) {
            .max-600\:px-4 { padding-left: 1rem; padding-right: 1rem; }
            .max-600\:py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
            .max-600\:gap-4 { gap: 1rem; }
            .max-600\:d-hidden { display: none; }
            .max-600\:d-flex { display: flex; }
        }

        /* --- Responsive: sm (min-width: 640px) --- */
        @media (min-width: 640px) {
            .sm\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
        }

        /* --- Responsive: md (min-width: 768px) --- */
        @media (min-width: 768px) {
            .md\:grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
            .md\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
        }

        /* --- Responsive: lg (min-width: 1024px) --- */
        @media (min-width: 1024px) {
            .lg\:grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
        }

.flex-1 { flex: 1 1 0%; }

/* ==========================================================================
   CASE STUDY PAGE STYLES
   ========================================================================== */

/* Case study container */
.case-study-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* Back link */
.case-study-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--fg-tertiary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    text-decoration: none;
    padding: 1rem 0;
    transition: color 200ms var(--ease-tech);
}
.case-study-back:hover {
    color: var(--accent-core);
}

/* Case study header */
.case-study-header {
    padding: 2rem 0 3rem;
    border-bottom: 1px solid var(--border-subtle);
}
.case-study-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2rem;
    font-weight: 700;
    color: var(--fg-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}
.case-study-repo-note {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--fg-tertiary);
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border-subtle);
    display: inline-block;
}

/* Section headings */
.case-study-section {
    padding: 2.5rem 0;
    border-bottom: 1px solid var(--border-subtle);
}
.case-study-section:last-child {
    border-bottom: none;
}
.case-study-section-heading {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-core);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

/* Paragraphs */
.case-study-text {
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--fg-secondary);
    margin-bottom: 1rem;
}
.case-study-text:last-child {
    margin-bottom: 0;
}

/* Bullet lists */
.case-study-bullets {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.case-study-bullet {
    font-family: 'Inter', sans-serif;
    font-size: 0.9375rem;
    line-height: 1.6;
    color: var(--fg-secondary);
    padding-left: 1.5rem;
    position: relative;
}
.case-study-bullet::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent-core);
}
.case-study-bullet strong {
    color: var(--fg-primary);
    font-weight: 600;
}

/* Metrics grid */
.case-study-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    border: 1px solid var(--border-subtle);
}
@media (min-width: 640px) {
    .case-study-metrics {
        grid-template-columns: repeat(3, 1fr);
    }
}
.case-study-metric {
    padding: 1.25rem;
    background: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    margin: -1px;
}
.case-study-metric-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--fg-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
}
.case-study-metric-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.625rem;
    color: var(--fg-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Architecture diagram */
.case-study-diagram {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    line-height: 1.4;
    color: var(--code-fg);
    background: var(--code-bg);
    border: 1px solid var(--code-border);
    padding: 1.5rem;
    overflow-x: auto;
    white-space: pre;
}

/* Design decisions */
.case-study-decision {
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-subtle);
}
.case-study-decision:last-child {
    border-bottom: none;
    padding-bottom: 0;
}
.case-study-decision-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--fg-primary);
    margin-bottom: 0.5rem;
}
.case-study-decision-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.625rem;
    color: var(--accent-core);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.25rem;
}
.case-study-decision-text {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--fg-secondary);
    margin-bottom: 0.5rem;
}
.case-study-decision-text:last-child {
    margin-bottom: 0;
}
.case-study-decision-alt {
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--fg-tertiary);
    font-style: italic;
}

/* Tech stack */
.case-study-techstack {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}
.case-study-techstack-row {
    display: flex;
    gap: 1rem;
    align-items: baseline;
}
.case-study-techstack-category {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.6875rem;
    color: var(--accent-core);
    text-transform: uppercase;
    min-width: 80px;
    flex-shrink: 0;
}
.case-study-techstack-items {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    color: var(--fg-secondary);
}

/* Competency list */
.case-study-competencies {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.case-study-competency {
    padding-left: 1.5rem;
    position: relative;
}
.case-study-competency::before {
    content: counter(competency, decimal-leading-zero);
    counter-increment: competency;
    position: absolute;
    left: 0;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.625rem;
    color: var(--accent-core);
}
.case-study-competencies {
    counter-reset: competency;
}
.case-study-competency-title {
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--fg-primary);
    margin-bottom: 0.25rem;
}
.case-study-competency-desc {
    font-family: 'Inter', sans-serif;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--fg-secondary);
}

/* Case Study CTA */
.case-study-cta {
    margin-top: 4rem;
    padding: 3rem 2rem;
    border-top: 1px solid var(--border-subtle);
    text-align: center;
}

.case-study-cta-title {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--fg-primary);
    margin: 0 0 1.5rem 0;
    letter-spacing: -0.02em;
}

.case-study-cta-button {
    display: inline-block;
    padding: 0.875rem 2.5rem;
    background: var(--accent-core);
    color: #fff !important;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--accent-core);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.case-study-cta-button:hover {
    background: transparent;
    color: var(--accent-core) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .case-study-title {
        font-size: 1.5rem;
    }
    .case-study-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    .case-study-diagram {
        font-size: 0.5625rem;
    }
    .case-study-techstack-row {
        flex-direction: column;
        gap: 0.25rem;
    }
}

/* Project Screenshots */
.project-screenshot {
    margin-left: 2.5rem;
    margin-top: 0.5rem;
    border: 1px solid var(--border-subtle);
    overflow: hidden;
}
.project-screenshot-img {
    display: block;
    width: 100%;
    height: auto;
    opacity: 0.85;
    transition: opacity 0.2s ease;
}
.project-screenshot-img:hover {
    opacity: 1;
}
@media (max-width: 768px) {
    .project-screenshot {
        margin-left: 0;
    }
}