.lab-container {
            padding-top: 140px;
            padding-bottom: 80px;
            min-height: 100vh;
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 5%;
            padding-right: 5%;
            display: flex;
            justify-content: center;
            align-items: flex-start;
        }

        .calculator-box {
            background: #0a0a0a;
            border: 1px solid rgba(176, 196, 222, 0.3);
            width: 100%;
            max-width: 650px;
            padding: 40px;
            border-radius: 4px;
            position: relative;
            box-shadow: 0 0 50px rgba(176, 196, 222, 0.10);
        }

        .modal-header {
            margin-bottom: 30px;
            border-bottom: 1px solid #222;
            padding-bottom: 15px;
        }

        .modal-title {
            font-family: 'Marcellus', serif;
            color: #fff;
            font-size: 1.8rem;
            margin-top: 5px;
        }

        .tech-mono {
            font-family: 'Courier New', Courier, monospace;
            font-size: 0.65rem;
            letter-spacing: 1px;
            text-transform: uppercase;
            font-weight: 700;
        }

        .executive-text {
            color: #b0c4de;
        }

        .lab-btn-executive {
            width: 100%;
            background: linear-gradient(135deg, #b0c4de 0%, #778899 100%);
            border: none;
            padding: 15px;
            color: #000;
            font-weight: 700;
            font-family: 'Cinzel', serif;
            letter-spacing: 2px;
            cursor: pointer;
            transition: 0.3s;
        }

        .lab-btn-executive:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 20px rgba(176, 196, 222, 0.4);
        }

        .lab-form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 30px;
        }

        .full-width {
            grid-column: span 2;
        }

        .tech-label {
            display: block;
            font-family: 'Courier New', monospace;
            font-size: 0.7rem;
            margin-bottom: 8px;
            letter-spacing: 1px;
        }

        .lab-input,
        .lab-select {
            width: 100%;
            background: #111;
            border: 1px solid #333;
            color: #fff;
            padding: 12px;
            font-family: 'Manrope', sans-serif;
            font-size: 1rem;
            transition: 0.3s;
            border-radius: 2px;
        }

        .lab-input:focus,
        .lab-select:focus {
            border-color: #b0c4de;
            outline: none;
            background: #161616;
        }

        .lab-btn-secondary {
            width: 100%;
            background: transparent;
            border: 1px solid #333;
            color: #888;
            padding: 15px;
            margin-top: 20px;
            cursor: pointer;
            font-family: 'Manrope', sans-serif;
            letter-spacing: 2px;
            transition: 0.3s;
        }

        .lab-btn-secondary:hover {
            border-color: #b0c4de;
            color: #b0c4de;
        }

        .modal-view {
            display: none;
            animation: fadeIn 0.4s ease;
        }

        .modal-view.active {
            display: block;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }

            to {
                opacity: 1;
            }
        }

        /* Custom Readout for the Protocol */
        .protocol-step {
            background: rgba(15, 20, 25, 0.8);
            border-left: 3px solid #b0c4de;
            padding: 15px 20px;
            margin-bottom: 15px;
            text-align: left;
            position: relative;
        }

        .step-number {
            position: absolute;
            top: -10px;
            left: -10px;
            background: #b0c4de;
            color: #000;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: 'Courier New', monospace;
            font-weight: bold;
            font-size: 0.8rem;
            border-radius: 2px;
        }

        .step-title {
            font-family: 'Marcellus', serif;
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: 5px;
        }

        .step-desc {
            font-family: 'Manrope', sans-serif;
            color: #aaa;
            font-size: 0.85rem;
            line-height: 1.5;
        }

        .step-metric {
            font-family: 'Courier New', monospace;
            color: #e6b34a;
            font-size: 0.75rem;
            margin-top: 8px;
            display: block;
        }

        .loading-bar-container {
            width: 100%;
            height: 4px;
            background: #222;
            margin: 30px 0;
            position: relative;
            overflow: hidden;
            display: none;
        }

        .loading-bar {
            height: 100%;
            width: 0%;
            background: #b0c4de;
            transition: width 0.1s linear;
        }

        .loading-text {
            font-family: 'Courier New', monospace;
            color: #b0c4de;
            font-size: 0.8rem;
            text-align: center;
            margin-bottom: 10px;
            display: none;
        }

        @media (max-width: 600px) {
            .lab-form-grid {
                grid-template-columns: 1fr;
            }

            .full-width {
                grid-column: auto;
            }

            .calculator-box {
                padding: 25px;
            }
        }

        /* ============================================================
           SURGICAL OVERRIDE: CARBON GLASS HUD (DARK LAB UNIFORM)
           ============================================================ */

        /* 1. The Carbon Glass Pane */
        body nav {
            background: rgba(2, 1, 1, 0.85) !important;
            backdrop-filter: blur(15px) !important;
            -webkit-backdrop-filter: blur(15px) !important;
            border-bottom: 1px solid rgba(230, 179, 74, 0.15) !important;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.8) !important;
        }

        /* 2. Standardize Nav Links */
        body nav .nav-links a {
            color: #E2E8F0 !important;
            transition: 0.3s ease !important;
        }

        body nav .nav-links a:hover {
            color: #fff !important;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.3) !important;
        }

        /* 3. The "ATELIER / LAB" Button */
        body nav .nav-center-group #labBtn {
            background: transparent !important;
            color: #e6b34a !important;
            border: 1px solid rgba(230, 179, 74, 0.3) !important;
            box-shadow: 0 0 15px rgba(230, 179, 74, 0.1) !important;
            text-shadow: 0 0 10px rgba(230, 179, 74, 0.5) !important;
        }

        /* 4. The "LuKUL" Button */
        body nav .nav-center-group .app-btn-bespoke:not(#labBtn) {
            background: transparent !important;
            color: #E2E8F0 !important;
            border: 1px solid transparent !important;
            box-shadow: none !important;
            text-shadow: none !important;
        }

        body nav .nav-center-group .app-btn-bespoke:not(#labBtn):hover {
            color: #fff !important;
            text-shadow: 0 0 10px rgba(255, 255, 255, 0.3) !important;
        }

        /* 5. The "APPLY" CTA */
        body nav .cta-btn {
            background: linear-gradient(135deg, #B89643 0%, #d4b76a 50%, #9e7f32 100%) !important;
            color: #111111 !important;
            border: 1px solid rgba(184, 150, 67, 0.8) !important;
            box-shadow: 4px 4px 0px rgba(184, 150, 67, 0.25) !important;
            text-shadow: none !important;
        }

        body nav .cta-btn:hover {
            background: linear-gradient(135deg, #d4b76a 0%, #F59E0B 50%, #d4b76a 100%) !important;
            transform: translate(-2px, -2px) !important;
            box-shadow: 6px 6px 0px rgba(184, 150, 67, 0.4) !important;
        }

        /* 6. Language Switcher Base Text */
        body nav .lang-dropdown .lang-btn,
        body nav .lang-dropdown .lang-btn span {
            color: #E2E8F0 !important;
            text-shadow: none !important;
            opacity: 0.8 !important;
        }

        body nav .lang-dropdown .lang-btn:hover,
        body nav .lang-dropdown .lang-btn:hover span {
            color: #ffffff !important;
            opacity: 1 !important;
        }

        /* 7. Mobile Centering Constraints */
        @media (max-width: 768px) {
            body nav {
                justify-content: center !important;
                gap: 12px !important;
                padding-left: 2% !important;
                padding-right: 2% !important;
            }

            body nav .lang-dropdown,
            body nav .nav-center-group,
            body nav .cta-btn {
                margin: 0 !important;
                position: static !important;
                transform: none !important;
            }

            body nav .lang-dropdown {
                margin: 0 !important;
                position: relative !important;
                transform: none !important;
            }

            body nav .nav-center-group {
                gap: 8px !important;
            }

            body nav .app-btn-bespoke,
            body nav .cta-btn,
            body nav #labBtn {
                white-space: nowrap !important;
                font-size: 9px !important;
                letter-spacing: 0.5px !important;
                padding: 8px 10px !important;
                line-height: 1 !important;
                height: auto !important;
            }

            body nav .nav-links {
                display: none !important;
            }
        }

        /* ============================================================
           8. STEALTH LANGUAGE DROPDOWN (NUCLEAR OVERRIDE)
           ============================================================ */
        html body nav #langDropdown #langMenu {
            background: rgba(2, 1, 1, 0.95) !important;
            backdrop-filter: blur(15px) !important;
            -webkit-backdrop-filter: blur(15px) !important;
            border: 1px solid rgba(230, 179, 74, 0.2) !important;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.9) !important;
        }

        html body nav #langDropdown .lang-btn,
        html body nav #langDropdown .lang-btn span {
            color: #E2E8F0 !important;
            font-family: 'Space Mono', monospace !important;
            font-weight: 400 !important;
            text-shadow: none !important;
            background: transparent !important;
        }

        html body nav #langDropdown .lang-btn:hover,
        html body nav #langDropdown .lang-btn:hover span {
            color: #ffffff !important;
        }

        html body nav #langDropdown #langMenu .lang-item,
        html body nav #langDropdown #langMenu a.lang-item {
            color: #E2E8F0 !important;
            background: transparent !important;
            font-family: 'Space Mono', monospace !important;
            font-size: 11px !important;
            text-shadow: none !important;
            transition: 0.3s ease !important;
            padding: 12px 15px !important;
        }

        html body nav #langDropdown #langMenu .lang-item:hover,
        html body nav #langDropdown #langMenu a.lang-item:hover {
            color: #e6b34a !important;
            background: rgba(230, 179, 74, 0.1) !important;
            text-shadow: 0 0 10px rgba(230, 179, 74, 0.4) !important;
        }

        /* ============================================================
           9. THE CANVAS OVERRIDE (KINETIC GOLD GRID & DARK VOID)
           ============================================================ */
        @keyframes gridFlowLab {
            0% {
                background-position: 0 0, 0 0, 0 0;
            }

            100% {
                background-position: 60px 60px, 60px 60px, 0 0;
            }
        }

        html body {
            background-color: #020101 !important;
            color: #E6E6E6 !important;
            background-image:
                linear-gradient(rgba(230, 179, 74, 0.25) 2px, transparent 2px),
                linear-gradient(90deg, rgba(230, 179, 74, 0.25) 2px, transparent 1px),
                radial-gradient(circle at 50% 0%, rgba(230, 179, 74, 0.25) 0%, transparent 75%) !important;
            background-size: 60px 60px, 60px 60px, 100% 100% !important;
            background-attachment: fixed !important;
            animation: gridFlowLab 120s linear infinite !important;
        }

        @media (max-width: 768px) {
            html body {
                background-image:
                    linear-gradient(rgba(230, 179, 74, 0.25) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(230, 179, 74, 0.25) 1px, transparent 1px),
                    radial-gradient(circle at 50% 0%, rgba(230, 179, 74, 0.22) 0%, transparent 75%) !important;
            }
        }

        html body #preloader {
            background-color: #020101 !important;
            background-image: radial-gradient(circle at 50% 50%, rgba(230, 179, 74, 0.15) 0%, transparent 70%) !important;
        }

        html body .lab-container p {
            color: #a1a1aa !important;
        }

        html body .lab-container h1,
        html body .lab-container h2 {
            color: #F9F9F9 !important;
        }

        /* ============================================================
           10. PRELOADER LOGO OVERRIDE (RESTORE DARK MODE SEAL)
           ============================================================ */

        /* Re-introduce the slow, deep glowing animation */
        @keyframes breatheDark {
            0% {
                transform: scale(1);
                filter: drop-shadow(0 0 20px rgba(230, 179, 74, 0.4));
            }

            50% {
                transform: scale(1.08);
                filter: drop-shadow(0 0 35px rgba(255, 140, 0, 0.6));
            }

            100% {
                transform: scale(1);
                filter: drop-shadow(0 0 20px rgba(230, 179, 74, 0.4));
            }
        }

        /* Nuclear override to kill the small, inverted, transparent clinical stamp */
        html body #preloader .breathing-seal {
            width: 225px !important;
            height: auto !important;
            opacity: 1 !important;
            filter: drop-shadow(0 0 20px rgba(230, 179, 74, 0.4)) !important;
            /* Kills invert(1) */
            animation: breatheDark 4s infinite ease-in-out !important;
        }