:root {
            /* Palette: Studio Terminal Dark */
            --bg-core: #050505;
            --bg-panel: #0f1012;
            --bg-input: #1a1c1f;
            --fg-primary: #e0e0e0;
            --fg-secondary: #9095a0;
            --accent-cyan: #64ffda;
            --accent-dim: #234f46;
            --accent-alert: #ff6b6b;
            --border: #2d3035;
            
            /* Typography */
            --font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            --font-mono: "SF Mono", "Monaco", "Andale Mono", "Lucida Console", "Courier New", monospace;
            
            /* Spacing - Condensed for Density */
            --space-sm: 0.5rem;
            --space-md: 1.5rem;
            --space-lg: 4rem;
        }

        /* 7) RESPECT USER PREFERENCES (Reduced Motion) */
        @media (prefers-reduced-motion: reduce) {
            * {
                animation: none !important;
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }

        * { box-sizing: border-box; outline-offset: 2px; }
        
        html { scroll-behavior: smooth; }

        body {
            /* 7) VISUAL REFINEMENT: Soften stark black with extremely dark charcoal gradient */
            background: linear-gradient(180deg, #050505 0%, #0a0b0d 100%);
            color: var(--fg-primary);
            font-family: var(--font-ui);
            line-height: 1.6;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
            position: relative; /* Context for background */
            min-height: 100vh;
        }
        
        /* 5) SONIC-VISUAL SYNESTHESIA: 60 BPM Pulse Background */
        /* Fixed overlay to ensure visibility */
        body::before {
            content: "";
            position: fixed;
            top: 0; left: 0; width: 100%; height: 100%;
            /* Subtle radial pulse */
            background: radial-gradient(circle at 50% 50%, rgba(100, 255, 218, 0.03) 0%, transparent 60%);
            pointer-events: none;
            z-index: 0;
            /* 60 BPM = 1 beat per second. 4s cycle = 1 bar of 4/4 time */
            animation: bgPulse 4s infinite ease-in-out;
        }

        @keyframes bgPulse {
            0%, 100% { opacity: 0.2; transform: scale(1); }
            50% { opacity: 0.5; transform: scale(1.1); }
        }

        /* Utilities */
        h1, h2, h3, h4 { margin: 0 0 var(--space-md) 0; font-weight: 500; letter-spacing: -0.02em; }
        h1 { font-size: 3rem; line-height: 1.1; }
        h2 { font-size: 2rem; color: var(--accent-cyan); }
        p { margin-bottom: var(--space-md); color: var(--fg-secondary); max-width: 65ch; }
        .mono { font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.05em; text-transform: uppercase; }
        .accent { color: var(--accent-cyan); }
        .fg-sec { color: var(--fg-secondary); }
        
        /* Container Logic & 1) MOBILE VAR FIX */
        .container { 
            max-width: 1000px; 
            margin: 0 auto; 
            padding: 0 var(--space-lg); 
            width: 100%; 
            position: relative;
            z-index: 1; /* Ensure content sits above pulse */
        }
        @media (max-width: 768px) {
            :root { --space-lg: 3rem; }
            .container { padding: 0 1.5rem; } 
            h1 { font-size: 2rem; }
            h2 { font-size: 1.5rem; }
        }
        
        /* 8) REDUCE INLINE STYLES - Common Classes */
        .card { 
            background: var(--bg-panel); 
            padding: 2rem; 
            border: 1px solid var(--border); 
            height: 100%; 
            transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
        }
        /* 3) ENHANCED HIERARCHY: Midground lift on hover */
        .card:hover {
            border-color: rgba(100, 255, 218, 0.3);
            transform: translateY(-2px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.4);
        }
        
        .card-h4 { color: var(--fg-primary); font-size: 1.1rem; margin-bottom: 0.75rem; }
        .card-p { font-size: 0.9rem; margin: 0; line-height: 1.5; }
        
        /* Interactive Elements */
        button {
            cursor: pointer;
            border: 1px solid var(--accent-cyan);
            background: transparent;
            color: var(--accent-cyan);
            padding: 14px 28px;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); 
            position: relative;
            overflow: hidden;
        }
        /* 1) MICRO-INTERACTION: Signal Ripple Effect on Click */
        button:active::after {
            content: '';
            position: absolute;
            top: 50%; left: 50%;
            width: 100%; height: 100%;
            background: rgba(100, 255, 218, 0.2);
            border-radius: 50%;
            transform: translate(-50%, -50%) scale(0);
            animation: ripple 0.4s linear;
        }
        @keyframes ripple {
            to { transform: translate(-50%, -50%) scale(4); opacity: 0; }
        }

        button:hover { background: var(--accent-dim); box-shadow: 0 0 15px rgba(100, 255, 218, 0.15); }
        button.primary { background: var(--accent-cyan); color: var(--bg-core); font-weight: 600; }
        button.primary:hover { background: #9efff0; box-shadow: 0 0 20px rgba(100, 255, 218, 0.4); }

        input[type="text"], input[type="email"], textarea, select, input[type="number"] {
            background: var(--bg-input);
            border: 1px solid var(--border);
            color: var(--fg-primary);
            padding: 14px;
            width: 100%;
            font-family: var(--font-mono);
            font-size: 0.9rem;
            margin-bottom: 0; 
            border-radius: 0;
            -webkit-appearance: none;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }
        input:focus, textarea:focus, select:focus { border-color: var(--accent-cyan); outline: none; box-shadow: 0 0 0 1px rgba(100,255,218,0.2); }

        /* Navigation */
        nav {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(5, 5, 5, 0.95);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            height: 70px;
            display: flex;
            align-items: center;
        }
        .nav-content { display: flex; justify-content: space-between; align-items: center; width: 100%; }
        .logo { font-weight: 700; font-size: 1.2rem; letter-spacing: -0.03em; color: var(--fg-primary); text-decoration: none; flex-shrink: 0; z-index: 102; }
        
        /* Desktop Nav */
        .nav-links { 
            display: flex; 
            gap: 1.5rem; 
            align-items: center; 
        }

        .nav-links a { 
            color: var(--fg-secondary); 
            text-decoration: none; 
            font-size: 0.9rem; 
            transition: color 0.2s; 
            position: relative;
            white-space: nowrap; 
            padding-bottom: 2px;
        }
        .nav-links a:hover, .nav-links a.active { color: var(--accent-cyan); }
        
        /* 1) MICRO-INTERACTION: Signal Lock (Underline Snap) */
        .nav-links a::after {
            content: ''; 
            position: absolute; 
            bottom: -4px; 
            left: 0; 
            width: 0%; /* Start hidden */
            height: 1px; 
            background: var(--accent-cyan);
            transition: width 0.3s cubic-bezier(0.22, 1, 0.36, 1); /* Scanline effect */
            box-shadow: 0 0 4px var(--accent-cyan);
        }
        .nav-links a:hover::after, .nav-links a.active::after {
            width: 100%; /* Snap to full width */
        }
        
        .cta-small { border: 1px solid var(--border); padding: 6px 16px; border-radius: 4px; color: var(--accent-cyan) !important; }
        .cta-small.active::after { display: none; }

        /* MOBILE MENU (Sandwich Style) */
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            z-index: 102;
            padding: 0;
            width: 30px;
            height: 20px;
            position: relative;
        }
        .mobile-toggle span {
            display: block;
            width: 100%;
            height: 2px;
            background-color: var(--accent-cyan);
            position: absolute;
            transition: all 0.3s ease;
        }
        .mobile-toggle span:nth-child(1) { top: 0; }
        .mobile-toggle span:nth-child(2) { top: 9px; }
        .mobile-toggle span:nth-child(3) { top: 18px; }
        
        /* Hamburger Animation */
        .mobile-toggle.open span:nth-child(1) { top: 9px; transform: rotate(45deg); }
        .mobile-toggle.open span:nth-child(2) { opacity: 0; }
        .mobile-toggle.open span:nth-child(3) { top: 9px; transform: rotate(-45deg); }

        /* Mobile Menu Overlay */
        .mobile-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: var(--bg-core);
            z-index: 101;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            opacity: 0;
            pointer-events: none;
            transition: opacity 0.3s ease;
        }
        .mobile-menu-overlay.active {
            opacity: 1;
            pointer-events: all;
        }
        .mobile-menu-links {
            display: flex;
            flex-direction: column;
            gap: 2rem;
            text-align: center;
        }
        .mobile-menu-links a {
            font-size: 1.5rem;
            color: var(--fg-primary);
            text-decoration: none;
            font-family: var(--font-mono);
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.4s ease;
        }
        .mobile-menu-overlay.active .mobile-menu-links a {
            opacity: 1;
            transform: translateY(0);
        }
        /* Staggered animation delays */
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(1) { transition-delay: 0.1s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(2) { transition-delay: 0.15s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(3) { transition-delay: 0.2s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(4) { transition-delay: 0.25s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(5) { transition-delay: 0.3s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(6) { transition-delay: 0.35s; }
        .mobile-menu-overlay.active .mobile-menu-links a:nth-child(7) { transition-delay: 0.4s; }


        @media (max-width: 768px) {
            .nav-links { display: none; } /* Hide desktop nav */
            .mobile-toggle { display: block; } /* Show hamburger */
        }

        /* Sections */
        section { 
            min-height: auto; 
            padding: 6rem 0;
            border-bottom: 1px solid var(--border);
            scroll-margin-top: 70px;
        }
        @media (max-width: 768px) { section { padding: 4rem 0; } }
        
        /* Hero */
        #hero {
            min-height: calc(100vh - 70px);
            display: flex;
            align-items: center;
            padding: 0;
        }
        @media (max-width: 768px) { 
            #hero { min-height: auto; padding: 4rem 0; } 
        }
        
        /* 2) PROGRESSIVE REVEAL: Animated Stats */
        @keyframes telemetrySlide {
            from { opacity: 0; transform: translateX(-10px); }
            to { opacity: 1; transform: translateX(0); }
        }
        .hero-stat { 
            border-left: 2px solid var(--accent-dim); 
            padding-left: var(--space-md); 
            margin-bottom: var(--space-md); 
            opacity: 0; /* Initial state for animation */
            animation: telemetrySlide 0.6s ease-out forwards;
        }
        .hero-stat:nth-child(1) { animation-delay: 0.2s; }
        .hero-stat:nth-child(2) { animation-delay: 0.4s; }
        .hero-stat:nth-child(3) { animation-delay: 0.6s; }
        
        .hero-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); align-items: center; }
        @media(min-width: 768px) { .hero-grid { grid-template-columns: 2fr 1fr; } }

        /* FAQ Grid */
        .grid-2 { display: grid; grid-template-columns: 1fr; gap: var(--space-lg); }
        @media(min-width: 768px) { .grid-2 { grid-template-columns: 1fr 1fr; } }
        .grid-4 { display: grid; grid-template-columns: 1fr; gap: var(--space-md); }
        @media(min-width: 768px) { .grid-4 { grid-template-columns: repeat(4, 1fr); } }
        
        /* Architecture / Day Arc */
        .graph-controls { display: flex; gap: 10px; margin-bottom: 1rem; overflow-x: auto; padding-bottom: 5px; }
        
        /* 2) ACCESSIBILITY: BUTTON TOGGLES */
        .toggle-pill { 
            font-size: 0.75rem; border: 1px solid var(--border); padding: 4px 12px; 
            border-radius: 12px; color: var(--fg-secondary); background: transparent; cursor: pointer; user-select: none; white-space: nowrap;
            transition: all 0.2s; font-family: var(--font-ui);
        }
        .toggle-pill:hover, .toggle-pill:focus { border-color: var(--accent-cyan); outline: none; }
        .toggle-pill.active { background: var(--accent-dim); color: var(--accent-cyan); border-color: var(--accent-cyan); }
        .toggle-pill[aria-pressed="true"] { background: var(--accent-dim); color: var(--accent-cyan); border-color: var(--accent-cyan); }

        .daw-visual {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            padding: 2rem 2rem 2rem 4rem; 
            position: relative;
            overflow: hidden;
            /* 1) MICRO-INTERACTION: Scanline Overlay for Tech Vibe */
            background-image: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
            background-size: 100% 2px, 3px 100%;
        }
        @media (max-width: 600px) {
            .daw-visual { padding: 1.5rem 1rem 1.5rem 2.5rem; } 
        }
        .y-axis-label {
            position: absolute; left: 1rem; top: 50%; 
            transform: translateY(-50%) rotate(-90deg);
            transform-origin: center;
            color: var(--fg-secondary); font-family: var(--font-mono); font-size: 10px; white-space: nowrap;
            transition: opacity 0.3s;
        }
        @media (max-width: 600px) {
            .y-axis-label { left: 0.25rem; font-size: 9px; }
        }
        .axis-label { fill: var(--fg-secondary); font-family: var(--font-mono); font-size: 11px; }
        
        /* 1) MICRO-INTERACTION: Wipe Transition for Graph Layers */
        .graph-layer { transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1); }
        .graph-hidden { opacity: 0; pointer-events: none; transform: scaleY(0.95); /* Subtle collapse effect */ }
        
        .beacon-marker { fill: var(--bg-core); stroke: var(--accent-cyan); stroke-width: 2; cursor: help; transition: r 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275); }
        /* 5) SONIC-VISUAL: Pulse on Hover for Beacons */
        .beacon-marker:hover { r: 8; fill: var(--accent-cyan); stroke-width: 4; stroke-opacity: 0.5; }
        
        .beacon-line { stroke: var(--accent-cyan); stroke-width: 1; stroke-dasharray: 2,4; opacity: 0.5; }

        .legend-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1.5rem; font-size: 0.85rem; color: var(--fg-secondary); }
        @media (max-width: 600px) { .legend-grid { grid-template-columns: 1fr; } }
        .legend-item strong { color: var(--accent-cyan); display: block; margin-bottom: 2px; }

        /* Palette Questionnaire */
        .quiz-step { display: none; }
        .quiz-step.active { display: block; animation: fadeIn 0.4s ease; }
        .option-grid { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
        .option-btn {
            flex: 1 1 30%; 
            border: 1px solid var(--border);
            padding: 20px;
            text-align: center;
            background: var(--bg-input);
            color: var(--fg-secondary);
            font-size: 0.95rem;
            transition: all 0.2s ease; /* 2) FOCUS SHARPEN transition */
        }
        @media (max-width: 600px) { .option-btn { flex: 1 1 100%; padding: 16px; } }
        
        /* 2) PROGRESSIVE REVEAL: Focus Sharpen - De-emphasize siblings on hover */
        .option-grid:hover .option-btn:not(:hover) {
            opacity: 0.5;
            filter: blur(0.5px);
        }
        .option-btn:hover { 
            border-color: var(--accent-cyan); 
            color: var(--fg-primary); 
            transform: scale(1.02); 
            z-index: 1;
            opacity: 1 !important;
            filter: none !important;
        }
        .option-btn.selected { 
            background: var(--accent-dim); 
            border-color: var(--accent-cyan); 
            color: var(--accent-cyan); 
            box-shadow: 0 0 0 1px var(--accent-cyan); /* Crisp outline */
            transform: scale(1.02);
            z-index: 2;
        }
        
        .result-card { border: 1px solid var(--accent-cyan); background: rgba(100, 255, 218, 0.05); padding: 2.5rem; }
        @media (max-width: 600px) { .result-card { padding: 1.5rem; } }

        /* --- PREVIEW KIT CARDS (Refined) --- */
        .preview-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; margin-top: 1.5rem; }
        @media(min-width: 768px) { .preview-grid { grid-template-columns: repeat(4, 1fr); } }
        
        .preview-card {
            border: 1px solid var(--border);
            background: var(--bg-panel);
            padding: 1.25rem;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            transition: border-color 0.2s;
            overflow: hidden; /* Ensure scans stay inside */
            position: relative;
        }
        .preview-card:hover { border-color: var(--accent-cyan); }

        /* Brand Beacon row: span full width under the 4 phase cards */
        .preview-card.is-wide { grid-column: 1 / -1; }

        /* On desktop, make the wide card feel like a single horizontal row */
        @media(min-width: 768px) {
            .preview-card.is-wide { flex-direction: row; align-items: center; gap: 1.5rem; }
            .preview-card.is-wide > div:first-child { flex: 1 1 auto; }
            .preview-card.is-wide .audio-btn { width: auto; min-width: 240px; }

            /* Brand Beacon: keep the CTA aligned with the waveform/progress bar */
            .preview-card.is-wide.beacon-card {
                display: grid;
                grid-template-columns: 1fr auto;
                grid-template-rows: auto auto;
                column-gap: 1.5rem;
                row-gap: 0.75rem;
                align-items: end;
            }
            .preview-card.is-wide.beacon-card .beacon-meta { grid-column: 1 / -1; }
            .preview-card.is-wide.beacon-card .beacon-cta { justify-self: end; align-self: end; }
            .preview-card.is-wide.beacon-card .wave-skeleton { margin: 0.75rem 0 0; }
        }


        /* 5) SONIC-VISUAL: Wave Skeleton Scan Animation */
        @keyframes waveScan {
            0% { background-position-x: -240px; }
            100% { background-position-x: calc(100% + 240px); }
        }

        @keyframes waveScanInProgress {
            0% { background-position: 0 0, -240px 0; }
            100% { background-position: 0 0, calc(100% + 240px) 0; }
        }

        .wave-skeleton {
            margin: 0.75rem 0 1rem;
            height: 48px;
            width: 100%;
            border: 1px solid var(--border);
            /* Base pattern */
            background-image: repeating-linear-gradient(
                90deg,
                rgba(100, 255, 218, 0.1),
                rgba(100, 255, 218, 0.1) 2px,
                transparent 2px,
                transparent 6px
            );
            opacity: 0.6;
            position: relative;
            overflow: hidden;
        }

        /* Playback progress overlay (driven by JS via --progress 0..100) */
        .wave-skeleton::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            height: 100%;
            width: calc(var(--progress, 0) * 1%);
            background-image: repeating-linear-gradient(
                90deg,
                rgba(100, 255, 218, 0.28),
                rgba(100, 255, 218, 0.28) 2px,
                transparent 2px,
                transparent 6px
            );
            opacity: 0.95;
            pointer-events: none;
        }
        .wave-skeleton.is-seekable { cursor: pointer; }

        .wave-skeleton::after {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 100%;
            height: 100%;
            background-image: linear-gradient(
                100deg,
                transparent 0%,
                rgba(100, 255, 218, 0.10) 38%,
                rgba(100, 255, 218, 0.30) 50%,
                rgba(100, 255, 218, 0.10) 62%,
                transparent 100%
            );
            background-repeat: no-repeat;
            background-size: 220px 100%;
            background-position-x: -240px;
            opacity: 0;
            pointer-events: none;
        }

        /* Ready state: shimmer sweeps entire tracker only while hovering. */
        .preview-card:hover .wave-skeleton.is-seekable:not(.track-active)::after {
            opacity: 1;
            animation: waveScan 1.6s linear infinite;
        }

        /* Active state: shimmer is constrained to played progress only while hovering. */
        .preview-card:hover .wave-skeleton.is-seekable.track-active::after {
            opacity: 0;
            animation: none;
        }
        .preview-card:hover .wave-skeleton.is-seekable.track-active::before {
            background-image:
                repeating-linear-gradient(
                    90deg,
                    rgba(100, 255, 218, 0.28),
                    rgba(100, 255, 218, 0.28) 2px,
                    transparent 2px,
                    transparent 6px
                ),
                linear-gradient(
                    100deg,
                    transparent 0%,
                    rgba(100, 255, 218, 0.10) 38%,
                    rgba(100, 255, 218, 0.30) 50%,
                    rgba(100, 255, 218, 0.10) 62%,
                    transparent 100%
                );
            background-repeat: repeat, no-repeat;
            background-size: auto, 220px 100%;
            background-position: 0 0, -240px 0;
            animation: waveScanInProgress 1.6s linear infinite;
        }

        .audio-btn {
            width: 100%;
            padding: 0.8rem 1rem;
            border: 1px solid var(--border);
            background: transparent;
            color: var(--fg-primary);
            font-family: var(--font-mono);
            text-transform: uppercase;
            font-size: 0.75rem;
            letter-spacing: 0.05em;
            cursor: pointer;
            display: flex; justify-content: space-between; align-items: center;
        }
        .audio-btn:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); background: rgba(100, 255, 218, 0.05); }
        /* 9) PLACEHOLDER HONESTY: Controls Disabled */
        .audio-btn:disabled { opacity: 0.5; cursor: not-allowed; border-color: var(--border); color: var(--fg-secondary); }
        .audio-btn:disabled:hover { background: transparent; box-shadow: none; color: var(--fg-secondary); border-color: var(--border); }

        /* --- PRICING ARCHITECTURE (Normalized) --- */
        .pricing-layout {
            display: grid;
            grid-template-columns: 1fr;
            gap: 2rem;
            margin-top: 3rem;
        }
        @media(min-width: 800px) {
            .pricing-layout {
                grid-template-columns: 0.9fr 1.1fr; 
                gap: 3rem;
                align-items: start;
            }
        }

        /* FLEX COLUMN for Left Side - Controls vertical rhythm */
        .pricing-column-left {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }
        @media (max-width: 800px) {
            .pricing-column-left {
                gap: 1rem; /* Tighter gap on mobile */
            }
        }

        .pricing-panel {
            background: var(--bg-panel);
            border: 1px solid var(--border);
            padding: 0;
            display: flex;
            flex-direction: column;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }
        /* 7) VISUAL REFINEMENT: Calculator Active Glow */
        .pricing-panel:hover {
            border-color: rgba(100, 255, 218, 0.2);
            box-shadow: 0 0 15px rgba(0,0,0,0.3);
        }
        
        /* -- UNIFIED BOX PADDING -- */
        .panel-header {
            padding: 1.5rem;
            border-bottom: 1px solid var(--border);
            font-family: var(--font-mono);
            font-size: 0.85rem;
            color: var(--accent-cyan);
            letter-spacing: 0.05em;
            text-transform: uppercase;
        }
        @media (max-width: 600px) { .panel-header { padding: 1.25rem; } }

        .pricing-row { 
            display: flex; 
            align-items: center; 
            padding: 1rem 1.5rem; 
            border-bottom: 1px solid var(--border); 
            font-size: 0.95rem;
        }
        .pricing-row:last-child { border-bottom: none; }
        
        /* Mobile Pricing Stack Logic */
        @media (max-width: 600px) {
            .pricing-row {
                flex-direction: column;
                align-items: flex-start;
                gap: 0.25rem;
                padding: 0.75rem 1.25rem; /* Consistent side padding */
            }
            .pricing-leader { display: none; } 
            .pricing-col-2 { align-self: flex-start; color: var(--accent-cyan); }
        }

        .pricing-col-1 { color: var(--fg-secondary); white-space: nowrap; }
        @media (max-width: 600px) { .pricing-col-1 { white-space: normal; } }

        .pricing-leader {
            flex-grow: 1;
            border-bottom: 1px dotted var(--border);
            margin: 0 1rem;
            opacity: 0.4;
            transform: translateY(4px);
        }
        .pricing-col-2 { font-family: var(--font-mono); color: var(--fg-primary); white-space: nowrap; }

        /* --- CAPITAL EFFICIENCY (Homogenized) --- */
        .efficiency-box {
            padding: 1.5rem; /* Matches Header/Body padding */
            border: 1px dashed var(--border); 
            background: rgba(100,255,218,0.01);
        }
        @media (max-width: 600px) { .efficiency-box { padding: 1.25rem; } }

        .efficiency-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
            font-size: 0.9rem;
            flex-wrap: wrap; 
            gap: 0.5rem;
        }
        
        /* STRICT MOBILE STACKING */
        @media (max-width: 600px) { 
            .efficiency-row {
                display: block; 
                margin-bottom: 1rem;
            }
            .efficiency-row > span {
                display: block; 
                word-break: break-word; /* Prevent overflow */
            }
            .efficiency-row > span:first-child {
                margin-bottom: 0.25rem;
                color: var(--fg-secondary);
                font-size: 0.85rem;
            }
            .efficiency-row > span:last-child {
                font-size: 0.9rem;
            }
        }

        /* Calculator Body Padding - Perfectly matched */
        .calculator-body { padding: 1.5rem; }
        @media (max-width: 600px) { .calculator-body { padding: 1.25rem; } }
        
        /* Range Slider & Inputs */
        input[type=range] { -webkit-appearance: none; width: 100%; background: transparent; margin: 10px 0; }
        input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; height: 18px; width: 18px; border-radius: 50%; background: var(--accent-cyan); cursor: pointer; margin-top: -7px; transition: transform 0.1s ease; }
        input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.2); } /* 1) Micro-interaction: Thumb scale */
        input[type=range]::-webkit-slider-runnable-track { width: 100%; height: 4px; cursor: pointer; background: var(--border); }
        
        .check-group { display: flex; align-items: flex-start; gap: 16px; cursor: pointer; user-select: none; }
        .check-box { width: 20px; height: 20px; border: 1px solid var(--fg-secondary); display: inline-block; position: relative; flex-shrink: 0; transition: all 0.2s; margin-top: 2px; }
        .check-group input { display: none; }
        .check-group input:checked + .check-box { background: var(--accent-cyan); border-color: var(--accent-cyan); }

        /* CONTACT FORM UNIFICATION */
        #contact-form {
            display: flex;
            flex-direction: column;
            gap: 1.25rem; /* The Universal Gap */
        }
        
        /* 4) MOBILE: Sticky Context Pill for Quiz */
        #quiz-mobile-nav {
            display: none;
            position: fixed;
            top: 70px; /* Below main nav */
            left: 0;
            width: 100%;
            background: rgba(15, 16, 18, 0.95);
            border-bottom: 1px solid var(--border);
            padding: 0.5rem 1.5rem;
            z-index: 90;
            justify-content: space-between;
            align-items: center;
            font-size: 0.75rem;
            color: var(--fg-secondary);
            backdrop-filter: blur(10px);
        }
        @media (max-width: 600px) {
             /* Show only when quiz section is active (handled in JS) */
            .quiz-active #quiz-mobile-nav { display: flex; }
        }

        /* Footer Mobile */
        footer .container {
            padding: 4rem 0;
            display: flex;
            justify-content: space-between;
            border-top: 1px solid var(--border);
            flex-wrap: wrap; 
            gap: 1rem;
        }
        @media (max-width: 600px) {
            footer .container { padding: 2rem 1.5rem; flex-direction: column; align-items: center; text-align: center; }
        }
        
        /* 6) STATUS LINE (Bottom Right) */
        #global-status {
            position: fixed;
            bottom: 1rem;
            right: 1.5rem;
            font-family: var(--font-mono);
            font-size: 0.7rem;
            color: var(--fg-secondary);
            opacity: 0.6;
            pointer-events: none;
            z-index: 50;
            text-align: right;
            transition: opacity 0.3s;
            background: rgba(0,0,0,0.5);
            padding: 2px 6px;
            border-radius: 4px;
        }
        @media (max-width: 768px) { #global-status { display: none; } } /* Hide on mobile to save space */

        /* --- COMPLIANCE / LEGAL OVERLAYS --- */
        
        /* Cookie Banner */
        .cookie-banner {
            position: fixed;
            bottom: 0;
            left: 0;
            width: 100%;
            background: var(--bg-panel);
            border-top: 1px solid var(--accent-cyan);
            padding: 1.5rem;
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            box-shadow: 0 -10px 30px rgba(0,0,0,0.8);
            transform: translateY(100%);
            transition: transform 0.4s ease-out;
        }
        .cookie-banner.active { transform: translateY(0); }
        
        .cookie-content { flex: 1; max-width: 800px; font-size: 0.85rem; color: var(--fg-secondary); }
        .cookie-actions { display: flex; gap: 1rem; }

        /* Legal Modal Overlay */
        .legal-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(5,5,5,0.95);
            backdrop-filter: blur(8px);
            z-index: 2000;
            display: none; /* Hidden by default */
            justify-content: center;
            align-items: center;
            opacity: 0;
            transition: opacity 0.3s ease;
        }
        .legal-overlay.open { display: flex; opacity: 1; }

        .legal-modal {
            width: 90%;
            max-width: 700px;
            max-height: 85vh;
            background: var(--bg-panel);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            box-shadow: 0 0 50px rgba(0,0,0,0.8);
        }

        .legal-header {
            padding: 1.5rem;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .legal-body {
            padding: 2rem;
            overflow-y: auto;
            font-size: 0.9rem;
            color: var(--fg-secondary);
            font-family: var(--font-mono);
            line-height: 1.7;
        }
        .legal-body h3 { color: var(--accent-cyan); margin-top: 2rem; font-size: 1rem; text-transform: uppercase; }
        .legal-body h3:first-child { margin-top: 0; }
        .legal-body ul { padding-left: 1.5rem; }
        
        .close-btn { 
            background: none; border: none; color: var(--fg-secondary); font-size: 1.5rem; cursor: pointer; padding: 0; 
        }
        .close-btn:hover { color: var(--accent-alert); }

        .legal-link { cursor: pointer; color: var(--fg-secondary); transition: color 0.2s; }
        .legal-link:hover { color: var(--accent-cyan); text-decoration: underline; }

        /* Animations */
        @keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

        /* Utility */
        .hidden { display: none; }
        .warning-box { border-left: 3px solid var(--accent-alert); background: rgba(255, 107, 107, 0.05); padding: 1.5rem; font-size: 0.9rem; margin-top: 2rem; }