:root {
            --bg-main: #FFFFFF;
            --bg-soft: #F7F8FA;
            --bg-dark: #0A0F19;
            --bg-dark-panel: #111827;
            --bg-dark-panel-light: #1e293b;
            --text-primary: #121826;
            --text-secondary: #4B5563;
            --text-light: #F9FAFB;
            --text-light-secondary: #A6B0C3;
            --accent-blue: #3B82F6;
            --accent-green: #22C55E;
            --accent-purple: #A78BFA;
            --accent-red: #EF4444;
            --accent-yellow: #FBBF24;
            --border-color: #E5E7EB;
            --border-dark: #374151;
            --font-sans: 'Alliance No.1', sans-serif;
            --font-mono: 'Source Code Pro', monospace;
            --header-height: 80px;
            --container-width: 1400px; 
            --radius-sm: 8px;
            --radius-lg: 16px; 
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --cursor-display: inline-block;
        }

        *, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; font-size: 16px; }
        body {
            font-family: var(--font-sans);
            background-color: var(--bg-soft); 
            color: var(--text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }
        body.menu-open { overflow: hidden; }
        .container { max-width: var(--container-width); margin: 0 auto; padding: 0 2rem; }
        
        
        .eyebrow { 
            font-family: var(--font-mono); 
            font-size: 0.9rem; 
            color: var(--accent-blue); 
            font-weight: 700; 
            margin-bottom: 1rem; 
            display: block; 
            text-transform: uppercase; 
            letter-spacing: 0.05em;
        }
        .title { 
            font-size: clamp(2.8rem, 6vw, 4.5rem);
            font-weight: 800; 
            letter-spacing: -0.04em; 
            line-height: 1.1; 
            margin-bottom: 1.5rem; 
        }
        .subtitle { 
            font-size: 1.25rem; 
            color: var(--text-light-secondary); 
            max-width: 75ch; 
            line-height: 1.7; 
        }


        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            height: var(--header-height);
            background-color: transparent;
            border-bottom: 1px solid transparent;
            transition: background-color var(--transition), border-color var(--transition);
        }
        .header.scrolled {
            background-color: rgba(247, 248, 250, 0.8); 
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom-color: var(--border-color);
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 100%;
        }
        .nav-logo a { text-decoration: none; }
        .nav-logo-text {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--text-primary); 
            transition: color var(--transition);
        }
        .nav-controls {
            display: flex;
            align-items: center;
            gap: 1rem;
        }
        .nav-btn {
            padding: 0.6rem 1.5rem;
            font-weight: 600;
            text-decoration: none;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            border: 1px solid var(--text-primary);
            color: var(--text-primary);
            background-color: transparent;
        }
        .nav-btn:hover {
            background-color: var(--text-primary);
            color: var(--text-light);
        }
        .nav-icon-btn {
            background: none;
            border: none;
            cursor: pointer;
            font-size: 1.2rem;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-primary); 
            transition: color var(--transition), background-color var(--transition);
            border-radius: 50%;
        }
        .nav-icon-btn:hover {
            background-color: rgba(0, 0, 0, 0.05);
        }
        
        
        .nav-toggle .fa-xmark { display: none; }
        .menu-open .header .nav-toggle .fa-bars { display: none; }
        .menu-open .header .nav-toggle .fa-xmark { display: block; }
        
        
        .menu-open .header {
            background-color: transparent;
            border-bottom-color: transparent;
        }
        .menu-open .header .nav-logo-text,
        .menu-open .header .nav-icon-btn,
        .menu-open .header .nav-btn {
            color: var(--text-light);
            border-color: var(--text-light);
        }
        .menu-open .header .nav-btn:hover {
            background-color: var(--text-light);
            color: var(--bg-dark);
        }

        
        .fullscreen-menu {
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background-color: var(--bg-dark);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            pointer-events: none;
            transition: opacity var(--transition), visibility var(--transition);
            overflow-y: auto;
            padding: calc(var(--header-height) + 4rem) 2rem 4rem 2rem;
        }
        .fullscreen-menu.is-active {
            opacity: 1;
            visibility: visible;
            pointer-events: all;
        }
        .fullscreen-menu-grid {
            max-width: var(--container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 2rem;
        }
        .fullscreen-menu-col { grid-column: span 3; }
        .fullscreen-menu-col.main-nav { grid-column: span 4; }
        .fullscreen-menu-col.sub-nav { grid-column: span 2; }
        .fullscreen-menu-col h5 {
            font-family: var(--font-mono);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            color: var(--text-light-secondary);
            margin-bottom: 1.5rem;
            font-size: 0.8rem;
        }
        .fullscreen-menu-col ul { list-style: none; padding: 0; }
        .fullscreen-menu-col ul li a {
            display: block;
            text-decoration: none;
            color: var(--text-light);
            transition: color var(--transition), padding-left var(--transition);
        }
        .fullscreen-menu-col ul li a:hover {
            color: var(--accent-blue);
            padding-left: 0.5rem;
        }
        .fullscreen-menu-col.main-nav ul li { margin-bottom: 1rem; }
        .fullscreen-menu-col.main-nav ul li a {
            font-size: 2.5rem;
            font-weight: 700;
            letter-spacing: -0.03em;
        }
        .fullscreen-menu-col.sub-nav ul li { margin-bottom: 0.8rem; }
        .fullscreen-menu-col.sub-nav ul li a {
            font-size: 1rem;
            font-weight: 500;
            color: var(--text-light-secondary);
        }
        .fullscreen-menu-col.sub-nav ul li a:hover { color: var(--text-light); }


        .hero-wrapper {
            padding: calc(var(--header-height) + 4rem) 2rem 4rem 2rem;
        }
        .hero-visual-container {
            height: 75vh;
            min-height: 600px;
            position: relative;
            display: flex;
            flex-direction: column;
            justify-content: flex-end;
            background-color: var(--bg-dark);
            color: var(--text-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            padding: 4rem;
        }
        #hero-canvas-container { 
            position: absolute; 
            top: 0; 
            left: 0; 
            width: 100%; 
            height: 100%; 
            z-index: 1;
        }
        .hero-content-container { 
            position: relative; 
            z-index: 2;
            max-width: 60ch;
        }
        .hero-content-container .subtitle { max-width: 55ch; }
        
        #hero-title::after {
            content: '▋';
            animation: blink 0.7s infinite;
            color: var(--accent-blue);
            display: var(--cursor-display);
        }
        @keyframes blink { 50% { opacity: 0; } }

        #main-content { background-color: var(--bg-soft); }
        .commitments-container {
            display: grid; 
            grid-template-columns: 1fr 1fr;
            gap: 5rem;
            position: relative;
            padding: 10vh 0;
        }
        .commitments-text-col { position: relative; }
        .commitment-step {
            padding: 3rem 0 3rem 2rem;
            margin-bottom: 60vh;
            opacity: 0.3;
            transition: opacity var(--transition), border-color var(--transition);
            border-left: 3px solid var(--border-color);
        }
        .commitment-step.is-active {
            opacity: 1;
            border-left-color: var(--active-color, var(--accent-blue));
        }
        .commitment-step:last-child { margin-bottom: 20vh; }
        .commitment-step .icon {
            font-size: 2.5rem; 
            margin-bottom: 1.5rem; 
            display: inline-block;
            color: var(--text-secondary);
            transition: color var(--transition);
        }
        .commitment-step.is-active .icon { color: var(--active-color, var(--accent-blue)); }
        .commitment-step h3 { 
            font-size: 2.2rem; 
            font-weight: 700; 
            letter-spacing: -0.03em; 
            margin-bottom: 1rem; 
            color: var(--text-primary);
        }
        .commitment-step p { 
            font-size: 1.1rem; 
            line-height: 1.8; 
            color: var(--text-secondary);
        }
        
        .commitments-visual-col { 
            position: relative; 
            height: 100%;
        }
        .sticky-visual-panel {
            position: sticky; 
            top: calc(50vh - 300px);
            width: 100%; 
            height: 600px;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-main); 
            border: 1px solid var(--border-color);
            cursor: grab;
        }
        .sticky-visual-panel:active { cursor: grabbing; }
        #commitment-canvas { 
            width: 100%; 
            height: 100%; 
            display: block;
        }


        .footer { 
            background-color: var(--bg-dark); 
            border-top: 1px solid var(--border-dark); 
            padding: 80px 0; 
            font-size: 0.95rem; 
        }
        .footer .container { color: var(--text-light-secondary); }
        .footer-grid { 
            display: grid; 
            grid-template-columns: 2fr repeat(4, 1fr); 
            gap: 2rem; 
            padding-bottom: 3rem; 
        }
        .footer-about h4 { 
            font-size: 1.5rem; 
            color: var(--text-light); 
            margin-bottom: 1rem; 
        }
        .footer-about p { color: var(--text-light-secondary); }
        .footer-col h5 { 
            font-family: var(--font-mono); 
            text-transform: uppercase; 
            letter-spacing: 0.05em; 
            color: var(--text-light); 
            margin-bottom: 1.5rem; 
        }
        .footer-col ul { list-style: none; padding: 0; }
        .footer-col ul li { margin-bottom: 1rem; }
        .footer-col ul a { 
            color: var(--text-light-secondary); 
            text-decoration: none; 
            transition: var(--transition); 
        }
        .footer-col ul a:hover { color: var(--text-light); }
        .footer-bottom { 
            padding-top: 2rem; 
            border-top: 1px solid var(--border-dark); 
            display: flex; 
            justify-content: space-between; 
            align-items: center; 
        }
        .social-links { display: flex; gap: 1.5rem; }
        .social-links a { 
            color: var(--text-light-secondary); 
            font-size: 1.2rem; 
            transition: var(--transition); 
        }
        .social-links a:hover { 
            color: var(--text-light); 
            transform: translateY(-2px); 
        }


        @media (max-width: 992px) {
            .fullscreen-menu-grid {
                grid-template-columns: 1fr;
                gap: 3rem;
            }
            .fullscreen-menu-col,
            .fullscreen-menu-col.main-nav,
            .fullscreen-menu-col.sub-nav {
                grid-column: span 1;
            }
            .fullscreen-menu-col.main-nav ul li a { font-size: 2rem; }
            
            .commitments-container { grid-template-columns: 1fr; }
            .commitments-visual-col { display: none; }
            .commitment-step { 
                margin-bottom: 5rem; 
                padding-left: 0; 
                opacity: 1; 
                border-left: none; 
            }
            
            .footer-grid { grid-template-columns: 1fr 1fr; }
            .footer-about { 
                grid-column: 1 / -1; 
                margin-bottom: 2rem; 
            }
        }
        @media (max-width: 768px) {
            .nav-btn { display: none; }
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { 
                flex-direction: column; 
                gap: 1.5rem; 
                text-align: center; 
            }
        }