:root {
            --black: #000000;
            --white: #FFFFFF;
            --perf-red: #FF5656;
            --electric-blue: #0046FF;
            --silver-gray: #BFC6C4;
            --dark-gray: #111111;
            
            --font-editorial: 'Raleway', sans-serif;
            --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
            --transition-fast: all 0.3s ease;
            --page-max-width: 1400px;
        }

        /* --- EDITORIAL SYSTEM RESET --- */
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html, body {
            background-color: var(--black);
            color: var(--white);
            font-family: var(--font-editorial);
            font-size: 16px;
            overflow-x: hidden;
            width: 100vw;
            -webkit-font-smoothing: antialiased;
            scroll-behavior: smooth;
        }

        /* --- HEADLINE & PROSE DESIGN PROFILE --- */
        h1, h2, h3, h4 {
            font-weight: 900;
            text-transform: uppercase;
            letter-spacing: -0.03em;
            line-height: 0.95;
        }

        .ultra-thin-head {
            font-weight: 100;
            letter-spacing: 0.05em;
        }

        p {
            font-size: 1.15rem;
            line-height: 1.8;
            font-weight: 300;
            letter-spacing: 0.01em;
        }

        .caps-label {
            font-size: 0.85rem;
            text-transform: uppercase;
            letter-spacing: 0.25em;
            font-weight: 700;
            display: block;
            margin-bottom: 1.5rem;
        }

        /* --- HIGH-PERFORMANCE HEADER NAVIGATION --- */
        .luxury-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 75px;
            background-color: var(--perf-red);
            z-index: 1000;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0 3rem;
            transition: var(--transition-fast);
        }

        .header-logo-container img {
            height: 38px;
            width: auto;
            display: block;
        }

        .center-publication-links {
            display: flex;
            gap: 2.5rem;
        }

        .pub-nav-item {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--white);
            text-transform: uppercase;
            letter-spacing: 0.15em;
            text-decoration: none;
            cursor: pointer;
            transition: var(--transition-fast);
        }

        .pub-nav-item:hover, .pub-nav-item.active-pub-node {
            opacity: 0.7;
        }

        .start-action-btn {
            background-color: var(--black);
            color: var(--white);
            border: 1px solid var(--black);
            padding: 0.75rem 2rem;
            font-family: var(--font-editorial);
            font-weight: 700;
            font-size: 0.85rem;
            letter-spacing: 0.15em;
            text-transform: uppercase;
            cursor: pointer;
            transition: var(--transition-fast);
        }

        .start-action-btn:hover {
            background-color: var(--white);
            color: var(--black);
            border-color: var(--white);
        }

        /* --- RESPONSIVE HAMBURGER DRAW CONFIGURATION --- */
        .hamburger-toggle-icon {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            flex-direction: column;
            gap: 6px;
            z-index: 1100;
        }

        .hamburger-toggle-icon span {
            display: block;
            width: 26px;
            height: 2px;
            background-color: var(--white);
            transition: var(--transition-fast);
        }

        .hamburger-toggle-icon.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
        .hamburger-toggle-icon.open span:nth-child(2) { opacity: 0; }
        .hamburger-toggle-icon.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

        .mobile-pub-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 100%;
            height: 100vh;
            background-color: var(--black);
            z-index: 1050;
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 2.5rem;
            transition: var(--transition-smooth);
        }

        .mobile-pub-drawer.drawer-visible {
            right: 0;
        }

        /* --- SPA VIEWPORT ENVIRONMENT ROUTER --- */
        .pub-viewport-wrapper {
            display: none;
            opacity: 0;
            transition: opacity 0.5s ease-in-out;
        }

        .pub-viewport-wrapper.active-pub-viewport {
            display: block;
            opacity: 1;
        }

        .editorial-section-box {
            max-width: var(--page-max-width);
            margin: 0 auto;
            padding: 8rem 3rem;
        }

        /* --- SECTION 1: CINEMATIC FULLSCREEN HERO --- */
        .cinematic-hero-frame {
            position: relative;
            width: 100vw;
            height: calc(100vh - 75px);
            overflow: hidden;
            background-color: var(--black);
        }

        .hero-video-render {
            position: absolute;
            top: 50%;
            left: 50%;
            min-width: 100%;
            min-height: 100%;
            width: auto;
            height: auto;
            transform: translate(-50%, -50%);
            object-fit: cover;
            z-index: 1;
        }

        .hero-dark-curtain {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(0,0,0,0.4) 0%, rgba(0,0,0,0.85) 100%);
            z-index: 2;
        }

        .hero-content-layer {
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            padding: 4rem 3rem;
            z-index: 3;
            display: flex;
            justify-content: space-between;
            align-items: flex-end;
        }

        .hero-headline-group h1 {
            font-size: 5.5rem;
            color: var(--white);
            margin-bottom: 1.5rem;
            line-height: 0.9;
        }

        .hero-headline-group p {
            max-width: 28rem;
            color: rgba(255, 255, 255, 0.8);
        }

        .mindset-floating-panel {
            background-color: var(--white);
            color: var(--black);
            padding: 2.5rem;
            max-width: 22rem;
            box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
        }

        .mindset-floating-panel h3 {
            font-size: 1.2rem;
            letter-spacing: 0.2em;
            margin-bottom: 1rem;
            color: var(--perf-red);
        }

        .mindset-floating-panel p {
            font-size: 1.05rem;
            color: var(--black);
            font-weight: 600;
            line-height: 1.6;
        }

        /* --- SECTION 2: WHY FITNESS MANIFESTO CORE --- */
        .manifesto-panel-bg {
            background-color: var(--black);
            color: var(--white);
        }

        .split-manifesto-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6rem;
            margin-top: 4rem;
            align-items: center;
        }

        .manifesto-portrait-frame {
            position: relative;
        }

        .manifesto-portrait-frame img {
            width: 100%;
            height: 600px;
            object-fit: cover;
        }

        .performance-pullquote-red {
            font-size: 3.5rem;
            font-weight: 900;
            color: var(--perf-red);
            margin-top: 2rem;
            line-height: 0.95;
        }

        /* --- SECTION 3: ASYMMETRIC PERFORMANCE WALL --- */
        .perf-wall-bg {
            background-color: var(--white);
            color: var(--black);
        }

        .asymmetric-performance-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 3rem;
            margin-top: 4rem;
        }

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

        .perf-tile-node {
            position: relative;
            overflow: hidden;
            cursor: pointer;
            background-color: var(--black);
        }

        .perf-tile-node img {
            width: 100%;
            height: 450px;
            object-fit: cover;
            display: block;
            transition: var(--transition-smooth);
        }

        .grid-span-full img {
            height: 550px;
        }

        .tile-blue-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 70, 255, 0.9);
            opacity: 0;
            transition: var(--transition-fast);
            display: flex;
            flex-direction: column;
            justify-content: center;
            padding: 4rem;
            z-index: 2;
        }

        .perf-tile-node:hover img {
            transform: scale(1.03);
            opacity: 0.3;
        }

        .perf-tile-node:hover .tile-blue-overlay {
            opacity: 1;
        }

        .tile-blue-overlay h3 {
            color: var(--white);
            font-size: 3rem;
            margin-bottom: 1rem;
        }

        .tile-blue-overlay p {
            color: var(--white);
            max-width: 25rem;
        }

        /* --- SECTION 4: HOW IT WORKS CHAPTERS --- */
        .chapters-blue-bg {
            background-color: var(--electric-blue);
            color: var(--white);
        }

        .giant-chapter-viewport {
            min-height: 85vh;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 6rem;
            align-items: center;
            border-bottom: 1px solid rgba(255,255,255,0.15);
            padding: 6rem 0;
        }

        .giant-chapter-viewport:last-child {
            border-bottom: none;
        }

        .chapter-numeral {
            font-size: 7rem;
            font-weight: 100;
            opacity: 0.5;
            margin-bottom: 1rem;
        }

        .chapter-text h3 {
            font-size: 4rem;
            margin-bottom: 1.5rem;
        }

        .chapter-image-canvas img {
            width: 100%;
            height: 500px;
            object-fit: cover;
            box-shadow: 0 30px 60px rgba(0,0,0,0.3);
        }

        /* --- SECTION 5: HORIZONTAL FITNESS ARCHIVE --- */
        .archive-horizontal-container {
            display: flex;
            gap: 2.5rem;
            overflow-x: auto;
            padding: 3rem 0;
            scrollbar-width: none;
        }

        .archive-horizontal-container::-webkit-scrollbar {
            display: none;
        }

        .archive-magazine-card {
            min-width: 380px;
            max-width: 380px;
            background-color: #F7F7F7;
            display: flex;
            flex-direction: column;
        }

        .archive-magazine-card img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .archive-card-body {
            padding: 2rem;
            color: var(--black);
        }

        .archive-card-body h3 {
            font-size: 1.6rem;
            margin-bottom: 1rem;
            color: var(--black);
        }

        .archive-card-body p {
            font-size: 1rem;
            color: #444444;
        }

        /* --- SECTION 6: LUXURY SERVICES PANELS --- */
        .services-silver-bg {
            background-color: var(--silver-gray);
            color: var(--black);
        }

        .luxury-services-rack {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 2.5rem;
            margin-top: 4rem;
        }

        .service-editorial-panel {
            background-color: var(--white);
            display: flex;
            flex-direction: column;
        }

        .service-editorial-panel img {
            width: 100%;
            height: 320px;
            object-fit: cover;
        }

        .service-panel-desc {
            padding: 2.5rem;
        }

        .service-panel-desc h3 {
            font-size: 1.8rem;
            margin-bottom: 1rem;
            color: var(--black);
        }

        .service-panel-desc p {
            font-size: 1rem;
            color: #333333;
        }

        /* --- SECTION 7: EDITORIAL TIPS & TRICKS NEWSPAPER ACCORDIONS --- */
        .newspaper-accordion-stack {
            max-width: 900px;
            margin: 4rem auto 0 auto;
        }

        .accordion-row-node {
            border-bottom: 1px solid rgba(255,255,255,0.2);
        }

        .accordion-row-header {
            padding: 2rem 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .accordion-row-header h3 {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            transition: var(--transition-fast);
        }

        .accordion-row-node:hover .accordion-row-header h3 {
            color: var(--perf-red);
        }

        .accordion-row-content {
            max-height: 0;
            overflow: hidden;
            transition: var(--transition-smooth);
        }

        .accordion-row-node.expanded-row .accordion-row-content {
            max-height: 400px;
            padding-bottom: 3rem;
        }

        /* --- SECTION 8: FULLSCREEN PARALLAX QUOTE FRAME --- */
        .parallax-quote-frame {
            position: relative;
            width: 100vw;
            height: 65vh;
            background-image: url('https://i.pinimg.com/736x/a9/f9/54/a9f954544397fdfb4a5d35afa589a1f7.jpg');
            background-size: cover;
            background-position: center;
            background-attachment: fixed;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 4rem;
        }

        .parallax-quote-frame::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0,0,0,0.65);
        }

        .parallax-quote-frame h2 {
            position: relative;
            z-index: 2;
            font-size: 4rem;
            max-width: 55rem;
            line-height: 1;
            color: var(--white);
        }

        /* --- SECTION 9: FITNESS PERFORMANCE JOURNAL --- */
        .journal-stack-wrapper {
            display: flex;
            flex-direction: column;
            gap: 6rem;
            margin-top: 4rem;
        }

        .journal-row-item {
            display: grid;
            grid-template-columns: 5fr 7fr;
            gap: 5rem;
            align-items: center;
        }

        .journal-row-item.reverse-row {
            grid-template-columns: 7fr 5fr;
        }

        .journal-row-item img {
            width: 100%;
            height: 400px;
            object-fit: cover;
        }

        .journal-row-text h3 {
            font-size: 2.2rem;
            color: var(--black);
            margin-bottom: 1.5rem;
        }

        .journal-row-text p {
            color: #333333;
            margin-bottom: 1.5rem;
        }

        .journal-read-link {
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.15em;
            font-weight: 700;
            color: var(--perf-red);
            text-decoration: none;
            border-bottom: 2px solid var(--perf-red);
            padding-bottom: 4px;
        }

        /* --- SECTION 10: WEEKLY PERFORMANCE LETTER --- */
        .letter-red-panel {
            background-color: var(--perf-red);
            color: var(--white);
            text-align: center;
            padding: 8rem 3rem;
        }

        .letter-red-panel h2 {
            font-size: 4rem;
            margin-bottom: 2rem;
            line-height: 0.9;
        }

        .performance-letter-form {
            max-width: 550px;
            margin: 3rem auto 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .perf-letter-input {
            background: transparent;
            border: none;
            border-bottom: 2px solid var(--white);
            padding: 1rem;
            font-family: var(--font-editorial);
            font-size: 1.4rem;
            color: var(--white);
            text-align: center;
            outline: none;
        }

        .perf-letter-input::placeholder {
            color: rgba(255,255,255,0.4);
        }

        .perf-letter-submit {
            background-color: var(--black);
            color: var(--white);
            border: none;
            padding: 1.2rem;
            font-family: var(--font-editorial);
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.2em;
            cursor: pointer;
            transition: var(--transition-fast);
        }

        .perf-letter-submit:hover {
            background-color: var(--white);
            color: var(--black);
        }

        /* --- SYSTEMIC LONG-FORM PRIVACY / TERMS COMPLIANCE HOUSING --- */
        .compliance-editorial-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .compliance-editorial-container h2 {
            font-size: 2rem;
            color: var(--perf-red);
            margin-top: 3.5rem;
            margin-bottom: 1.2rem;
        }

        /* --- LUXURY BRAND HOUSE FOOTER --- */
        .publication-brand-footer {
            background-color: var(--black);
            color: var(--white);
            padding: 6rem 3rem 3rem 3rem;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        .footer-logo-row h2 {
            font-size: 2.5rem;
            margin-bottom: 4rem;
            letter-spacing: -0.01em;
        }

        .footer-four-columns {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 4rem;
            margin-bottom: 6rem;
        }

        .footer-column-label {
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.2em;
            color: rgba(255,255,255,0.4);
            margin-bottom: 1.8rem;
            font-weight: 700;
        }

        .footer-nav-link {
            color: var(--white);
            text-decoration: none;
            display: block;
            margin-bottom: 1rem;
            font-size: 1rem;
            font-weight: 300;
            cursor: pointer;
            transition: var(--transition-fast);
        }

        .footer-nav-link:hover {
            color: var(--perf-red);
            padding-left: 4px;
        }

        .footer-bottom-line {
            border-top: 1px solid var(--perf-red);
            padding-top: 2.5rem;
            display: flex;
            justify-content: space-between;
            font-size: 0.85rem;
            color: rgba(255,255,255,0.4);
        }

        .footer-bottom-line a {
            color: rgba(255,255,255,0.4);
            text-decoration: none;
            margin-right: 1.5rem;
        }

        .footer-bottom-line a:hover {
            color: var(--white);
        }

        /* --- GRAPHIC ADAPTABILITY RESPONSIVE ENGINE --- */
        @media(max-width: 1100px) {
            .hero-content-layer { flex-direction: column; align-items: flex-start; gap: 3rem; }
            .split-manifesto-grid { grid-template-columns: 1fr; }
            .asymmetric-performance-grid { grid-template-columns: 1fr; }
            .grid-span-full { grid-column: span 1; }
            .giant-chapter-viewport { grid-template-columns: 1fr; gap: 3rem; }
            .luxury-services-rack { grid-template-columns: 1fr; }
            .journal-row-item, .journal-row-item.reverse-row { grid-template-columns: 1fr; gap: 3rem; }
            .footer-four-columns { grid-template-columns: repeat(2, 1fr); }
        }

        @media(max-width: 800px) {
            .center-publication-links { display: none; }
            .hamburger-toggle-icon { display: flex; }
            .hero-headline-group h1 { font-size: 3.5rem; }
            .editorial-section-box { padding: 5rem 1.5rem; }
            .footer-four-columns { grid-template-columns: 1fr; }
            .footer-bottom-line { flex-direction: column; gap: 1.5rem; }
        }