/* -------------------------------------------------------------
   MAISON ÉTOILE DESIGN SYSTEM (FASHION DESIGN LANGUAGE - FDL)
---------------------------------------------------------------- */

:root {
    /* Color System (Material Inspired) */
    --color-bg-primary: #FDFBF7;       /* Warm Ivory (handmade cotton paper) */
    --color-bg-secondary: #F5EFEB;     /* Natural Linen */
    --color-surface: #EAE3DB;          /* Travertine Stone */
    --color-text-primary: #1C1C1C;     /* Deep Charcoal */
    --color-text-secondary: #5A5A5A;   /* Weathered Graphite */
    --color-accent: #BFA280;           /* Champagne Bronze */
    --color-interactive: #0D0D0D;      /* Black Silk */
    
    /* System Feedback */
    --color-success: #7C8D80;          /* Sage */
    --color-warning: #C18567;          /* Clay */
    --color-error: #8E4D51;            /* Muted Burgundy */

    /* Typography Fonts */
    --font-serif: 'Cormorant Garamond', Georgia, serif;
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;

    /* Timing scale (Luxury pacing) */
    --duration-micro: 200ms;
    --duration-standard: 450ms;
    --duration-large: 800ms;
    --ease-editorial: cubic-bezier(0.25, 1, 0.5, 1); /* OutQuart */
    --ease-page-turn: cubic-bezier(0.645, 0.045, 0.355, 1); /* InOutCaspian */

    /* Spacing system (Base Unit 8px) */
    --space-1: 8px;
    --space-2: 16px;
    --space-3: 24px;
    --space-4: 32px;
    --space-6: 48px;
    --space-8: 64px;
    --space-12: 96px;
    --space-16: 128px;
    --space-24: 192px;
    --space-32: 256px;

    /* Border Radius & Geometry */
    --radius-button: 8px;
    --radius-card: 12px;
    --radius-dialog: 16px;
    --radius-image: 12px;

    /* Hairline boundaries */
    --border-hairline: 1px solid rgba(28, 28, 28, 0.08);
    --border-hairline-bright: 1px solid rgba(28, 28, 28, 0.15);
}

/* -------------------------------------------------------------
   RESET & FOUNDATIONS
---------------------------------------------------------------- */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

button {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* Custom dot cursor */
.custom-cursor {
    width: 6px;
    height: 6px;
    background-color: var(--color-interactive);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: width var(--duration-micro) var(--ease-editorial), height var(--duration-micro) var(--ease-editorial);
}

.custom-cursor-ring {
    width: 30px;
    height: 30px;
    border: 1px solid rgba(28, 28, 28, 0.15);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transform: translate(-50%, -50%);
    transition: transform 0.08s ease-out, width var(--duration-micro) var(--ease-editorial), height var(--duration-micro) var(--ease-editorial), border var(--duration-micro) var(--ease-editorial);
}

.custom-cursor.hovered {
    width: 10px;
    height: 10px;
}

.custom-cursor-ring.hovered {
    width: 44px;
    height: 44px;
    border: 1px solid var(--color-accent);
}

/* Base Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
    background: var(--color-surface);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-accent);
}

/* 12-Column Grid Layout (Desktop Max: 1440px, Content: 1320px) */
.grid-container {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    column-gap: var(--space-3);
    row-gap: var(--space-4);
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    width: 100%;
}

.col-1  { grid-column: span 1; }
.col-2  { grid-column: span 2; }
.col-3  { grid-column: span 3; }
.col-4  { grid-column: span 4; }
.col-5  { grid-column: span 5; }
.col-6  { grid-column: span 6; }
.col-7  { grid-column: span 7; }
.col-8  { grid-column: span 8; }
.col-9  { grid-column: span 9; }
.col-10 { grid-column: span 10; }
.col-11 { grid-column: span 11; }
.col-12 { grid-column: span 12; }

/* Paper texture filter layer */
.paper-texture-overlay, .loader-paper-texture, .menu-paper-texture, .modal-paper-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* -------------------------------------------------------------
   MOMENT 1: CINEMATIC LOADER
---------------------------------------------------------------- */

.loader-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-bg-primary);
    z-index: 10000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity var(--duration-large) var(--ease-editorial);
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    color: var(--color-text-primary);
}

.loader-brand-name {
    font-family: var(--font-serif);
    font-weight: 300;
    font-size: 2.2rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-top: var(--space-3);
    opacity: 0;
    transform: translateY(10px);
    animation: fade-in-up 1s var(--ease-editorial) forwards 0.8s;
}

.loader-tagline {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-1);
    opacity: 0;
    transform: translateY(10px);
    animation: fade-in-up 1s var(--ease-editorial) forwards 1.2s;
}

.loader-progress-bar {
    width: 120px;
    height: 1px;
    background-color: rgba(28, 28, 28, 0.1);
    margin-top: var(--space-4);
    position: relative;
    overflow: hidden;
}

.loader-progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0%;
    background-color: var(--color-accent);
}

/* Star SVG drawing animation */
.star-draw-path {
    stroke-dasharray: 400;
    stroke-dashoffset: 400;
    animation: draw-star 2s ease-in-out forwards 0.2s;
}

@keyframes draw-star {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes fade-in-up {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* -------------------------------------------------------------
   MAIN HEADER NAVIGATION
---------------------------------------------------------------- */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--space-3) 0;
    background-color: rgba(253, 251, 247, 0.96);
    border-bottom: 1px solid rgba(28, 28, 28, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
    transition: padding var(--duration-standard) var(--ease-editorial), background-color var(--duration-standard) var(--ease-editorial);
}

.main-header.scrolled {
    padding: var(--space-2) 0;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
}

.header-inner {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-left, .header-right {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    width: 30%;
}

.header-right {
    justify-content: flex-end;
}

.header-logo {
    width: 40%;
    text-align: center;
}

.logo-link {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 400;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-text-primary);
    transition: color var(--duration-standard) var(--ease-editorial);
}

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

.nav-toggle-btn {
    background: none;
    border: none;
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 24px;
    height: 14px;
    justify-content: center;
    cursor: none;
    z-index: 1002;
}

.burger-line {
    width: 100%;
    height: 1.5px;
    background-color: var(--color-text-primary);
    transition: transform var(--duration-micro) var(--ease-editorial), background-color var(--duration-micro) var(--ease-editorial);
}

/* Burger Active States */
.nav-toggle-btn.active .burger-line:first-child {
    transform: translateY(3px) rotate(45deg);
}

.nav-toggle-btn.active .burger-line:last-child {
    transform: translateY(-3px) rotate(-45deg);
}

.desktop-nav, .desktop-nav-right {
    display: flex;
    gap: var(--space-3);
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-text-secondary);
    position: relative;
    padding-bottom: 2px;
    transition: color var(--duration-micro) var(--ease-editorial);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-accent);
    transition: width var(--duration-micro) var(--ease-editorial);
}

.nav-link:hover {
    color: var(--color-text-primary);
}

.nav-link:hover::after {
    width: 100%;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: none;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--duration-micro);
}

.icon-btn:hover {
    color: var(--color-accent);
}

.bag-count {
    position: absolute;
    top: -6px;
    right: -6px;
    font-size: 0.65rem;
    font-weight: 500;
    background-color: var(--color-accent);
    color: white;
    border-radius: 50%;
    width: 14px;
    height: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* -------------------------------------------------------------
   OVERLAY NAVIGATION MENU
---------------------------------------------------------------- */

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: var(--color-bg-primary);
    z-index: 1001;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: transform var(--duration-standard) var(--ease-editorial), opacity var(--duration-standard) var(--ease-editorial), visibility var(--duration-standard) var(--ease-editorial);
    padding: var(--space-12) 0 var(--space-6);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.menu-overlay.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.menu-inner {
    flex-grow: 1;
    align-items: center;
}

.menu-section-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-1);
}

.menu-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.menu-item-link {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 300;
    text-decoration: none;
    color: var(--color-text-primary);
    transition: color var(--duration-micro) var(--ease-editorial), transform var(--duration-micro) var(--ease-editorial);
    display: inline-block;
}

.menu-item-link:hover {
    color: var(--color-accent);
    transform: translateX(10px);
}

.menu-sublist {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.menu-sub-link {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color var(--duration-micro);
}

.menu-sub-link:hover {
    color: var(--color-text-primary);
}

.menu-action-btn {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    text-align: left;
    cursor: none;
    transition: color var(--duration-micro);
}

.menu-action-btn:hover {
    color: var(--color-text-primary);
}

.menu-footer {
    display: flex;
    justify-content: space-between;
    max-width: 1440px;
    margin: 0 auto;
    width: 100%;
    padding: var(--space-4) var(--space-8) 0;
    border-top: var(--border-hairline);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.menu-footer-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    margin-left: var(--space-3);
    transition: color var(--duration-micro);
}

.menu-footer-link:hover {
    color: var(--color-text-primary);
}

/* -------------------------------------------------------------
   EDITORIAL CHAPTER SECTIONS
---------------------------------------------------------------- */

.chapter-section {
    position: relative;
    padding: var(--space-12) 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    border-bottom: var(--border-hairline);
}

.section-header-editorial {
    max-width: 800px;
    margin: 0 auto var(--space-8);
    padding: 0 var(--space-3);
}

.chapter-index {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-2);
}

.editorial-section-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 300;
    letter-spacing: 0.02em;
    margin-bottom: var(--space-2);
}

.editorial-section-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--color-text-secondary);
}

.text-center {
    text-align: center;
}

/* -------------------------------------------------------------
   CHAPTER ONE: HERO EXPERIENCE (Townhouse & Light Engine)
---------------------------------------------------------------- */

.hero-section {
    padding: 0;
    overflow: hidden;
    position: relative;
    min-height: 100vh;
}

.hero-bg-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: radial-gradient(circle at 50% 40%, #221E19 0%, #12100E 60%, #0A0908 100%);
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero-campaign-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transform: scale(1.05);
    filter: brightness(0.72) contrast(1.06);
    transition: opacity 1.8s var(--ease-editorial), transform 2s var(--ease-editorial), filter 1.8s var(--ease-editorial);
}

.hero-campaign-img.loaded {
    opacity: 1;
    transform: scale(1);
}

.hero-shadow-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10, 9, 8, 0.75) 0%, rgba(10, 9, 8, 0.45) 45%, rgba(10, 9, 8, 0.85) 100%);
    z-index: 2;
}

/* Light ray engine */
.light-ray-engine {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
    pointer-events: none;
    background: linear-gradient(135deg, rgba(212, 200, 160, 0.12) 0%, transparent 65%);
    opacity: 0.8;
}

.hero-content {
    position: relative;
    z-index: 4;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    width: 100%;
    height: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-reveal-box {
    max-width: 660px;
    background: rgba(14, 13, 11, 0.65);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 16px;
    padding: 44px 44px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
    color: #FFFFFF;
}

.hero-tag {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: #D4C8A0;
    display: inline-block;
    margin-bottom: var(--space-2);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1.2s var(--ease-editorial) 0.3s, transform 1.2s var(--ease-editorial) 0.3s;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.6rem;
    font-weight: 300;
    line-height: 1.15;
    color: #FFFFFF;
    margin-bottom: var(--space-3);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(25px);
    transition: opacity 1.4s var(--ease-editorial) 0.5s, transform 1.4s var(--ease-editorial) 0.5s;
}

.hero-subtitle {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    line-height: 1.65;
    color: #EAE3DB;
    margin-bottom: var(--space-4);
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1.4s var(--ease-editorial) 0.7s, transform 1.4s var(--ease-editorial) 0.7s;
}

.hero-invitation {
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 1.2s var(--ease-editorial) 0.9s, transform 1.2s var(--ease-editorial) 0.9s;
}

.hero-section.revealed .hero-tag,
.hero-section.revealed .hero-title,
.hero-section.revealed .hero-subtitle,
.hero-section.revealed .hero-invitation {
    opacity: 1;
    transform: translateY(0);
}

.editorial-invite-link {
    display: inline-flex;
    flex-direction: column;
    text-decoration: none;
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    background: rgba(191, 162, 128, 0.22);
    border: 1px solid rgba(191, 162, 128, 0.5);
    padding: 12px 28px;
    border-radius: 50px;
    transition: all var(--duration-standard) var(--ease-editorial);
}

.editorial-invite-link:hover {
    background: var(--color-accent);
    color: #1C1C1C;
    border-color: var(--color-accent);
    box-shadow: 0 8px 24px rgba(191, 162, 128, 0.4);
}

.invite-line {
    width: 40px;
    height: 1px;
    background-color: currentColor;
    margin-top: 6px;
    transition: width var(--duration-standard) var(--ease-editorial);
}

.editorial-invite-link:hover .invite-line {
    width: 100%;
}

.scroll-indicator {
    position: absolute;
    bottom: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    z-index: 4;
    display: flex;
    flex-direction: column;
    align-items: center;
    color: #FDFBF7;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
}

.scroll-dot {
    width: 1px;
    height: 30px;
    background-color: rgba(253, 251, 247, 0.3);
    position: relative;
    overflow: hidden;
}

.scroll-dot::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50%;
    background-color: var(--color-bg-primary);
    animation: scroll-dot-move 2s infinite ease-in-out;
}

@keyframes scroll-dot-move {
    0% { transform: translateY(-100%); }
    80% { transform: translateY(200%); }
    100% { transform: translateY(200%); }
}

.scroll-text {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    margin-top: var(--space-1);
    opacity: 0.6;
}

/* -------------------------------------------------------------
   CHAPTER TWO: PHILOSOPHY
---------------------------------------------------------------- */

.philosophy-section {
    background-color: var(--color-bg-secondary);
}

.philosophy-img-col {
    display: flex;
    align-items: center;
}

.reveal-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: var(--radius-image);
}

.philosophy-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-image);
    filter: sepia(0.08) contrast(1.02);
}

.philosophy-content-box {
    padding: var(--space-6) 0 var(--space-6) var(--space-4);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.philosophy-headline {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 300;
    line-height: 1.25;
    margin-bottom: var(--space-3);
}

.philosophy-paragraph {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.philosophy-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.4rem;
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-2);
    color: var(--color-text-primary);
}

/* -------------------------------------------------------------
   CHAPTER THREE: THE SKETCHBOOK (Moment 2: Sketch Slider)
---------------------------------------------------------------- */

.sketchbook-section {
    background-color: var(--color-bg-primary);
    overflow: hidden;
}

.sketchbook-container {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--space-4);
}

.sketchbook-viewer {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-image);
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.03);
    border: var(--border-hairline);
}

.garment-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.garment-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.sketch-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    overflow: hidden;
    /* Mask logic is controlled via clip-path in JavaScript (width/rect) */
}

.sketch-paper-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #F8F4EE;
    opacity: 0.95;
    z-index: 1;
}

.sketch-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 2;
    mix-blend-mode: multiply; /* Make pencil lines overlay beautifully */
    filter: contrast(1.05) grayscale(0.5);
}

.sketch-slider-handle {
    position: absolute;
    top: 0;
    left: 50%; /* JS will bind this position */
    height: 100%;
    width: 2px;
    background-color: var(--color-accent);
    z-index: 3;
    transform: translateX(-50%);
    cursor: ew-resize;
}

.slider-handle-line {
    height: 100%;
    width: 100%;
}

.slider-handle-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--color-bg-primary);
    border: var(--border-hairline-bright);
    border-radius: 30px;
    padding: 10px 18px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-primary);
    box-shadow: 0 4px 15px rgba(0,0,0,0.06);
    user-select: none;
}

.handle-arrow-left, .handle-arrow-right {
    font-size: 0.8rem;
    color: var(--color-accent);
}

/* -------------------------------------------------------------
   CHAPTER FOUR: MATERIAL EXPLORER (Moment 3: Fabric Light)
---------------------------------------------------------------- */

.materials-section {
    background-color: var(--color-bg-secondary);
}

.material-controls-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.material-intro-paragraph {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.material-selectors {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.material-tab-btn {
    background: none;
    border: none;
    border-left: 2px solid transparent;
    padding: var(--space-2) 0 var(--space-2) var(--space-2);
    text-align: left;
    cursor: none;
    transition: border-color var(--duration-micro), background-color var(--duration-micro);
}

.material-tab-btn.active {
    border-left-color: var(--color-accent);
    background-color: rgba(28, 28, 28, 0.02);
}

.material-name {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 400;
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 2px;
}

.material-meta {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    letter-spacing: 0.02em;
}

.material-display-col {
    display: flex;
    align-items: center;
}

.material-explorer-card {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-card);
    width: 100%;
    padding: var(--space-4);
    box-shadow: 0 20px 40px rgba(0,0,0,0.02);
    border: var(--border-hairline);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.material-light-controller {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-2);
}

.light-control-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-secondary);
}

.light-knob-container {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.light-time-tag {
    font-size: 0.8rem;
    color: var(--color-accent);
}

.light-angle-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 120px;
    height: 1px;
    background: rgba(28,28,28,0.1);
    outline: none;
}

.light-angle-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
    cursor: none;
}

.material-visual-display {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-image);
    overflow: hidden;
    background-color: var(--color-bg-secondary);
}

.material-texture-wrapper {
    width: 100%;
    height: 100%;
    position: relative;
}

.material-texture-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--duration-standard) var(--ease-editorial);
}

.material-texture-img.active {
    opacity: 1;
}

.material-shadows {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 5;
    pointer-events: none;
    mix-blend-mode: multiply;
    transition: opacity var(--duration-micro);
    /* In JS, we will manipulate box shadow values and gradient directions to simulate shifting sun rays */
    background: linear-gradient(45deg, rgba(28,28,28,0.1) 0%, transparent 60%);
}

.material-story-box {
    margin-top: var(--space-1);
}

.material-story-title {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 300;
    margin-bottom: var(--space-1);
}

.material-story-text {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.material-details-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    column-gap: var(--space-3);
    border-top: var(--border-hairline);
    padding-top: var(--space-2);
}

.detail-cell {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.cell-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
}

.cell-value {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* -------------------------------------------------------------
   CHAPTER FIVE: THE ATELIER (Moment 4: Scroll Transition)
---------------------------------------------------------------- */

.atelier-section {
    background-color: var(--color-bg-primary);
}

.atelier-timeline-container {
    max-width: 1440px;
    margin: var(--space-4) auto 0;
    padding: 0 var(--space-8);
    display: flex;
    position: relative;
}

.atelier-media-sticky {
    width: 45%;
    position: sticky;
    top: 15vh;
    height: 70vh;
    border-radius: var(--radius-image);
    overflow: hidden;
    border: var(--border-hairline);
    box-shadow: 0 20px 40px rgba(0,0,0,0.02);
}

.atelier-image-stages {
    position: relative;
    width: 100%;
    height: 100%;
}

.stage-img-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: scale(1.02);
    transition: opacity var(--duration-standard) var(--ease-editorial), transform var(--duration-standard) var(--ease-editorial);
}

.stage-img-wrapper.active {
    opacity: 1;
    transform: scale(1);
    z-index: 2;
}

.stage-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.stage-overlay-label {
    position: absolute;
    bottom: var(--space-3);
    left: var(--space-3);
    z-index: 5;
    background-color: rgba(253, 251, 247, 0.95);
    border: var(--border-hairline);
    border-radius: 4px;
    padding: 6px 12px;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.atelier-timeline-scroll {
    width: 55%;
    padding-left: var(--space-8);
}

.atelier-timeline-block {
    padding: 15vh 0;
    border-bottom: var(--border-hairline);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.atelier-timeline-block:last-child {
    border-bottom: none;
    padding-bottom: 25vh;
}

.block-number {
    font-family: var(--font-serif);
    font-size: 3rem;
    font-weight: 300;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.block-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: var(--space-2);
}

.block-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

/* -------------------------------------------------------------
   CHAPTER SIX: THE EDITORIAL LOOKBOOK (Moment 5: 3D Flip)
---------------------------------------------------------------- */

.lookbook-section {
    background-color: var(--color-bg-secondary);
    overflow: hidden;
}

.lookbook-wrapper {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--space-4);
    perspective: 2000px; /* Crucial for 3D page flip effects */
}

.lookbook-book {
    position: relative;
    width: 100%;
    aspect-ratio: 1.4 / 1; /* Horizontal double-spread page layout */
    transform-style: preserve-3d;
    transition: transform var(--duration-large) var(--ease-page-turn);
}

.book-page {
    position: absolute;
    top: 0;
    left: 50%; /* Spine is in the middle */
    width: 50%;
    height: 100%;
    transform-origin: left center;
    transform-style: preserve-3d;
    z-index: 10;
    transition: transform var(--duration-large) var(--ease-page-turn);
    pointer-events: none;
}

.book-page.active {
    pointer-events: auto;
}

.page-side {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    background-color: var(--color-bg-primary);
    border: var(--border-hairline);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: inset 20px 0 30px rgba(0,0,0,0.015);
}

.page-front {
    z-index: 2;
}

.page-back {
    transform: rotateY(180deg);
    z-index: 1;
}

/* Spine shadow shading */
.page-front::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(to right, rgba(0,0,0,0.03) 0%, transparent 100%);
    pointer-events: none;
}

.page-back::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 30px;
    height: 100%;
    background: linear-gradient(to left, rgba(0,0,0,0.03) 0%, transparent 100%);
    pointer-events: none;
}

/* Page states */
.book-page.turned-left {
    transform: rotateY(-180deg);
    z-index: 5;
}

/* Page Contents */
.lookbook-cover-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    padding: var(--space-4);
}

.lookbook-vol {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-2);
}

.lookbook-title {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 300;
    line-height: 1.2;
    margin-bottom: var(--space-3);
}

.lookbook-season {
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.lookbook-intro-text {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    max-width: 300px;
    margin-bottom: var(--space-4);
}

.lookbook-cta-tip {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
}

.page-layout-split {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.page-layout-split img {
    flex-grow: 1;
    width: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.page-caption {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: var(--space-2);
    text-align: center;
}

.page-layout-full {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: var(--space-2);
}

.page-layout-full img {
    height: 55%;
    width: 100%;
    object-fit: cover;
    border-radius: 4px;
}

.page-text-content {
    padding: var(--space-1) 0;
}

.page-text-content h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 6px;
}

.page-text-content p {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

.lookbook-end-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    gap: var(--space-3);
}

.lookbook-end-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.2rem;
    color: var(--color-text-secondary);
    max-width: 280px;
}

.lookbook-end-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    align-items: center;
}

.lookbook-shop-link {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    text-decoration: underline;
    font-weight: 500;
}

.lookbook-reset-btn {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    cursor: none;
}

.lookbook-back-cover {
    width: 100%;
    height: 100%;
    background-color: var(--color-surface);
}

/* Lookbook Controls */
.lookbook-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-4);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.lookbook-control-btn {
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-primary);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: none;
    opacity: 0.8;
    transition: opacity var(--duration-micro), color var(--duration-micro);
}

.lookbook-control-btn:hover:not(:disabled) {
    color: var(--color-accent);
    opacity: 1;
}

.lookbook-control-btn:disabled {
    opacity: 0.2;
}

.lookbook-page-indicator {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

/* -------------------------------------------------------------
   CHAPTER SEVEN: THE COLLECTION (Product Grid)
---------------------------------------------------------------- */

.collections-section {
    background-color: var(--color-bg-primary);
}

.collections-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.collection-tab-btn {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-text-secondary);
    cursor: none;
    padding-bottom: 4px;
    border-bottom: 1px solid transparent;
    transition: color var(--duration-micro), border-color var(--duration-micro);
}

.collection-tab-btn.active, .collection-tab-btn:hover {
    color: var(--color-text-primary);
    border-bottom-color: var(--color-interactive);
}

.products-grid-container {
    margin-top: var(--space-4);
}

.product-card-wrapper {
    opacity: 1;
    transform: translateY(0);
    transition: opacity var(--duration-standard) var(--ease-editorial), transform var(--duration-standard) var(--ease-editorial);
}

.product-card-wrapper.hide {
    opacity: 0;
    transform: translateY(15px);
    pointer-events: none;
    display: none;
}

.product-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    text-decoration: none;
    color: inherit;
}

.product-image-container {
    position: relative;
    width: 100%;
    aspect-ratio: 3 / 4;
    border-radius: var(--radius-card);
    overflow: hidden;
    border: var(--border-hairline);
    background-color: var(--color-bg-secondary);
}

.product-main-img, .product-hover-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    transition: transform var(--duration-standard) var(--ease-editorial), opacity var(--duration-standard) var(--ease-editorial);
}

.product-hover-img {
    opacity: 0;
}

.product-card:hover .product-main-img {
    transform: scale(1.03);
    opacity: 0;
}

.product-card:hover .product-hover-img {
    transform: scale(1.03);
    opacity: 1;
}

.add-to-bag-hover-btn {
    position: absolute;
    bottom: var(--space-3);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: rgba(253, 251, 247, 0.95);
    border: var(--border-hairline-bright);
    border-radius: var(--radius-button);
    padding: 10px 20px;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: none;
    z-index: 5;
    opacity: 0;
    box-shadow: 0 4px 15px rgba(0,0,0,0.04);
    transition: opacity var(--duration-micro) var(--ease-editorial), transform var(--duration-micro) var(--ease-editorial), background-color var(--duration-micro);
}

.product-card:hover .add-to-bag-hover-btn {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.add-to-bag-hover-btn:hover {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
}

.product-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-1);
    margin-top: 4px;
}

.product-card-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 400;
    color: var(--color-text-primary);
}

.product-card-price {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-secondary);
}

.product-card-description {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.product-card-material {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-accent);
}

.product-card-summary {
    font-size: 0.8rem;
    line-height: 1.4;
    color: var(--color-text-secondary);
}

/* -------------------------------------------------------------
   CHAPTER EIGHT: THE BIOGRAPHY OF LEATHER (Moment 6: Patina)
---------------------------------------------------------------- */

.patina-section {
    background-color: var(--color-bg-secondary);
}

.patina-text-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.patina-paragraph {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.patina-controller {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-card);
    padding: var(--space-3);
    border: var(--border-hairline);
    box-shadow: 0 10px 30px rgba(0,0,0,0.015);
    margin-bottom: var(--space-4);
}

.patina-slider-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-2);
}

.patina-year-label {
    color: var(--color-text-secondary);
}

.patina-year-value {
    color: var(--color-accent);
    font-weight: 500;
}

.patina-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 1px;
    background: rgba(28,28,28,0.1);
    outline: none;
    margin-bottom: 8px;
}

.patina-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-interactive);
    cursor: none;
}

.patina-slider-ticks {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
    color: var(--color-text-secondary);
}

.patina-quote-box {
    border-left: 2px solid var(--color-accent);
    padding-left: var(--space-2);
}

.patina-quote {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.15rem;
    color: var(--color-text-primary);
    line-height: 1.4;
}

.patina-visual-col {
    display: flex;
    align-items: center;
}

.patina-canvas-container {
    position: relative;
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-image);
    overflow: hidden;
    border: var(--border-hairline);
    background-color: var(--color-bg-primary);
    box-shadow: 0 20px 40px rgba(0,0,0,0.02);
    display: flex;
    flex-direction: column;
}

.patina-visual-box {
    position: relative;
    flex-grow: 1;
    width: 100%;
    overflow: hidden;
}

.patina-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Patina aged overlay */
.patina-aged-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #5D3A1B; /* Rich warm leather tanning color */
    mix-blend-mode: multiply; /* Blend onto the bag image */
    opacity: 0; /* JS will adjust opacity from 0 to 0.75 */
    pointer-events: none;
    transition: opacity 0.1s ease-out;
}

.patina-caption {
    background-color: var(--color-bg-primary);
    border-top: var(--border-hairline);
    padding: var(--space-2) var(--space-3);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    text-align: center;
}

/* -------------------------------------------------------------
   CHAPTER NINE: THE EDITORIAL JOURNAL (Kinfolk Grid)
---------------------------------------------------------------- */

.journal-section {
    background-color: var(--color-bg-primary);
}

.journal-grid {
    margin-top: var(--space-4);
}

.journal-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.journal-card-image {
    width: 100%;
    aspect-ratio: 4 / 3;
    border-radius: var(--radius-image);
    overflow: hidden;
    border: var(--border-hairline);
    background-color: var(--color-bg-secondary);
}

.journal-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-standard) var(--ease-editorial);
}

.journal-card:hover .journal-img {
    transform: scale(1.03);
}

.journal-card-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-top: 4px;
}

.journal-category {
    color: var(--color-accent);
}

.journal-date {
    color: var(--color-text-secondary);
}

.journal-card-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1.25;
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.journal-card-excerpt {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.journal-read-btn {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-primary);
    text-decoration: underline;
    text-align: left;
    cursor: none;
}

.journal-read-btn:hover {
    color: var(--color-accent);
}

/* -------------------------------------------------------------
   CHAPTER TEN: THE BOUTIQUES & PRIVATES
---------------------------------------------------------------- */

.boutiques-section {
    background-color: var(--color-bg-secondary);
}

.boutiques-intro {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.boutique-cards-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.boutique-selector-card {
    background-color: var(--color-bg-primary);
    border: var(--border-hairline);
    border-radius: var(--radius-card);
    padding: var(--space-3);
    cursor: none;
    transition: transform var(--duration-micro) var(--ease-editorial), border-color var(--duration-micro), box-shadow var(--duration-micro);
}

.boutique-selector-card.active {
    border-left: 2px solid var(--color-accent);
    box-shadow: 0 10px 30px rgba(0,0,0,0.02);
}

.boutique-selector-card h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 4px;
}

.boutique-selector-card p {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: 2px;
}

.boutique-schedule {
    font-size: 0.7rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.boutique-preview-container {
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-card);
    overflow: hidden;
    border: var(--border-hairline);
    box-shadow: 0 20px 45px rgba(0,0,0,0.025);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.boutique-img-wrapper {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    border-bottom: var(--border-hairline);
}

.boutique-preview-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0;
    transition: opacity var(--duration-standard) var(--ease-editorial);
}

.boutique-preview-img.active {
    opacity: 1;
}

.boutique-quick-facts {
    padding: var(--space-4);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: var(--space-3);
}

.boutique-quick-facts h4 {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 300;
}

.boutique-quick-facts p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.arrange-viewing-btn {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-button);
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: none;
    transition: background-color var(--duration-micro), transform var(--duration-micro);
    align-self: flex-start;
}

.arrange-viewing-btn:hover {
    background-color: var(--color-accent);
}

/* -------------------------------------------------------------
   MOMENT 7: SUNSET OUTRO INVITATION
---------------------------------------------------------------- */

.sunset-atelier-section {
    background-color: #1F1F1F;
    color: var(--color-bg-primary);
    padding: var(--space-16) 0;
    overflow: hidden;
}

.sunset-glow-engine {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
    background: radial-gradient(circle at 50% 50%, rgba(223, 137, 72, 0.08) 0%, transparent 70%);
}

.sunset-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--space-4);
}

.sunset-atelier-view {
    width: 100%;
    max-width: 600px;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-image);
    overflow: hidden;
    margin: 0 auto var(--space-6);
    border: 1px solid rgba(253, 251, 247, 0.1);
}

.sunset-atelier-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: sepia(0.2) brightness(0.7);
}

.sunset-message {
    font-family: var(--font-serif);
    font-size: 2.6rem;
    font-weight: 300;
    margin-bottom: var(--space-2);
    letter-spacing: 0.02em;
}

.sunset-subtext {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.2rem;
    color: var(--color-bg-secondary);
    margin-bottom: var(--space-4);
    opacity: 0.8;
}

.sunset-cta-btn {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    border: none;
    border-radius: var(--radius-button);
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    cursor: none;
    transition: background-color var(--duration-micro), transform var(--duration-micro);
}

.sunset-cta-btn:hover {
    background-color: var(--color-accent);
    color: white;
}

/* -------------------------------------------------------------
   FOOTER (Printed Book Endpage)
---------------------------------------------------------------- */

.main-footer {
    background-color: var(--color-bg-primary);
    border-top: var(--border-hairline-bright);
    padding: var(--space-12) 0 var(--space-6);
}

.footer-inner {
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-8);
}

.footer-brand-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--space-2);
}

.footer-brand-desc {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.audio-control-container {
    display: inline-block;
}

.audio-toggle-btn {
    background: none;
    border: var(--border-hairline-bright);
    border-radius: 30px;
    padding: 8px 18px;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: none;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-text-primary);
    transition: background-color var(--duration-micro), border-color var(--duration-micro);
}

.audio-toggle-btn:hover {
    background-color: rgba(28,28,28,0.02);
}

.audio-toggle-btn.active {
    border-color: var(--color-accent);
}

.audio-wave {
    display: flex;
    align-items: flex-end;
    gap: 2px;
    height: 10px;
}

.wave-bar {
    width: 2px;
    background-color: var(--color-text-primary);
    height: 3px;
    transition: height 0.1s;
}

.audio-toggle-btn.active .wave-bar:nth-child(1) { animation: wave-bar-anim 0.8s infinite alternate 0.1s; }
.audio-toggle-btn.active .wave-bar:nth-child(2) { animation: wave-bar-anim 0.6s infinite alternate 0.3s; }
.audio-toggle-btn.active .wave-bar:nth-child(3) { animation: wave-bar-anim 1.0s infinite alternate 0.2s; }

@keyframes wave-bar-anim {
    from { height: 3px; }
    to { height: 10px; }
}

.footer-title {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer-link {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color var(--duration-micro);
}

.footer-link:hover {
    color: var(--color-text-primary);
}

.newsletter-desc {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
}

.newsletter-form {
    display: flex;
    border-bottom: 1px solid var(--color-text-primary);
    padding-bottom: 6px;
}

.newsletter-input {
    background: none;
    border: none;
    flex-grow: 1;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-primary);
    outline: none;
}

.newsletter-input::placeholder {
    color: var(--color-text-secondary);
    opacity: 0.7;
}

.newsletter-submit-btn {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--duration-micro);
}

.newsletter-submit-btn:hover {
    color: var(--color-accent);
}

.newsletter-feedback {
    display: block;
    margin-top: 6px;
    font-size: 0.75rem;
    color: var(--color-success);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    padding-top: var(--space-4);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-3);
}

.footer-bottom-link {
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color var(--duration-micro);
}

.footer-bottom-link:hover {
    color: var(--color-text-primary);
}

/* -------------------------------------------------------------
   OVERLAY PORTALS & MODALS (Form & Booking & Cart details)
---------------------------------------------------------------- */

.overlay-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(253, 251, 247, 0.98); /* Warm Ivory base */
    z-index: 2000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-standard) var(--ease-editorial);
    padding: var(--space-4);
}

.overlay-modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background-color: var(--color-bg-primary);
    border: var(--border-hairline-bright);
    border-radius: var(--radius-dialog);
    max-width: 750px;
    width: 100%;
    padding: var(--space-6);
    position: relative;
    z-index: 15;
    box-shadow: 0 30px 90px rgba(0,0,0,0.06);
    transform: translateY(20px);
    transition: transform var(--duration-standard) var(--ease-editorial);
}

.overlay-modal.active .modal-container {
    transform: translateY(0);
}

.scrollable-modal {
    max-height: 90vh;
    overflow-y: auto;
}

.modal-close-btn {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--color-text-secondary);
    cursor: none;
    transition: color var(--duration-micro);
}

.modal-close-btn:hover {
    color: var(--color-text-primary);
}

.modal-header {
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-3);
    margin-bottom: var(--space-4);
}

.modal-subtitle {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    display: block;
    margin-bottom: var(--space-1);
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 6px;
}

.modal-desc {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
}

/* Appointment Form */
.appointment-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.form-row {
    margin-bottom: 0;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
    background-color: var(--color-bg-secondary);
    border: 1px solid transparent;
    border-radius: var(--radius-button);
    padding: 10px 14px;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--color-text-primary);
    outline: none;
    transition: border-color var(--duration-micro), background-color var(--duration-micro);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--color-accent);
    background-color: var(--color-bg-primary);
}

.checkbox-group {
    display: flex;
    gap: var(--space-4);
    margin-top: 4px;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    cursor: none;
}

.checkbox-container input {
    display: none;
}

.checkbox-custom {
    width: 14px;
    height: 14px;
    border: 1px solid rgba(28,28,28,0.2);
    border-radius: 2px;
    display: inline-block;
    position: relative;
}

.checkbox-container input:checked + .checkbox-custom {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
}

.checkbox-container input:checked + .checkbox-custom::after {
    content: '';
    position: absolute;
    left: 4px;
    top: 1px;
    width: 4px;
    height: 7px;
    border: solid white;
    border-width: 0 1px 1px 0;
    transform: rotate(45deg);
}

.modal-submit-btn {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-button);
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    cursor: none;
    width: 100%;
    margin-top: var(--space-2);
    transition: background-color var(--duration-micro);
}

.modal-submit-btn:hover {
    background-color: var(--color-accent);
}

/* Success screen modal */
.modal-success-screen {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-primary);
    border-radius: var(--radius-dialog);
    z-index: 20;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: var(--space-6);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--duration-standard) var(--ease-editorial);
}

.modal-success-screen.active {
    opacity: 1;
    pointer-events: auto;
}

.success-check-svg {
    color: var(--color-success);
    margin-bottom: var(--space-3);
}

.success-title {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 300;
    margin-bottom: 6px;
}

.success-message {
    font-size: 0.85rem;
    line-height: 1.5;
    color: var(--color-text-secondary);
    max-width: 450px;
    margin-bottom: var(--space-4);
}

.success-close-btn {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-button);
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: none;
    transition: background-color var(--duration-micro);
}

.success-close-btn:hover {
    background-color: var(--color-accent);
}

/* Care & Repair Details */
.care-content-sections {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.care-section {
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-3);
}

.care-section:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.care-section h4 {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 6px;
    color: var(--color-text-primary);
}

.care-section p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.arrange-repair-btn {
    background: none;
    border: 1px solid var(--color-interactive);
    border-radius: var(--radius-button);
    padding: 10px 20px;
    font-family: var(--font-sans);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    cursor: none;
    transition: background-color var(--duration-micro), color var(--duration-micro);
}

.arrange-repair-btn:hover {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
}

/* Client Account tabs styling */
.client-tabs-container {
    display: flex;
    gap: var(--space-4);
    min-height: 300px;
}

.client-sidebar {
    width: 30%;
    display: flex;
    flex-direction: column;
    gap: 8px;
    border-right: var(--border-hairline);
    padding-right: var(--space-3);
}

.client-tab-link {
    background: none;
    border: none;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-secondary);
    text-align: left;
    padding: 8px 12px;
    border-radius: var(--radius-button);
    cursor: none;
    transition: background-color var(--duration-micro), color var(--duration-micro);
}

.client-tab-link.active, .client-tab-link:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
}

.client-tab-content {
    width: 70%;
    padding-left: var(--space-2);
}

.client-tab-pane {
    display: none;
}

.client-tab-pane.active {
    display: block;
}

.empty-client-state {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    gap: var(--space-3);
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.client-secondary-btn {
    background: none;
    border: 1px solid var(--color-accent);
    color: var(--color-text-primary);
    border-radius: var(--radius-button);
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: none;
}

/* Shopping Bag */
.bag-container-panel {
    max-width: 500px;
    margin-left: auto;
    margin-right: 0;
    height: 100vh;
    border-radius: 0;
    max-height: 100vh;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform var(--duration-standard) var(--ease-editorial);
}

.overlay-modal.active .bag-container-panel {
    transform: translateX(0);
}

.bag-items-list {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding-right: var(--space-1);
    margin-bottom: var(--space-4);
}

.bag-item-card {
    display: flex;
    gap: var(--space-2);
    border-bottom: var(--border-hairline);
    padding-bottom: var(--space-2);
}

.bag-item-img {
    width: 70px;
    aspect-ratio: 3 / 4;
    border-radius: 4px;
    object-fit: cover;
    border: var(--border-hairline);
}

.bag-item-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.bag-item-title-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.bag-item-title {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 400;
}

.bag-item-price {
    font-size: 0.85rem;
    font-weight: 500;
}

.bag-item-material {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: var(--color-accent);
}

.bag-item-remove-btn {
    background: none;
    border: none;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-error);
    text-align: left;
    cursor: none;
    width: fit-content;
}

.empty-bag-state {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    height: 100%;
    gap: var(--space-3);
    color: var(--color-text-secondary);
    font-size: 0.85rem;
}

.bag-explore-btn {
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
    border-radius: var(--radius-button);
    padding: 10px 20px;
    text-decoration: none;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    transition: background-color var(--duration-micro);
}

.bag-explore-btn:hover {
    background-color: var(--color-accent);
}

.bag-summary-container {
    border-top: var(--border-hairline-bright);
    padding-top: var(--space-3);
}

.bag-subtotal-row {
    display: flex;
    justify-content: space-between;
    font-weight: 500;
    margin-bottom: 6px;
    font-size: 1rem;
}

.bag-delivery-note {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.bag-checkout-btn {
    width: 100%;
    background-color: var(--color-interactive);
    color: var(--color-bg-primary);
    border: none;
    border-radius: var(--radius-button);
    padding: 12px 24px;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 500;
    cursor: none;
    transition: background-color var(--duration-micro);
}

.bag-checkout-btn:hover {
    background-color: var(--color-accent);
}

/* -------------------------------------------------------------
   RESPONSIVE DESIGN (Core Web Adaptation)
---------------------------------------------------------------- */

@media (max-width: 1200px) {
    .grid-container {
        padding: 0 var(--space-4);
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
}

@media (max-width: 992px) {
    /* Tablet Configuration (8-Column layout simulation) */
    .grid-container {
        grid-template-columns: repeat(8, 1fr);
        column-gap: var(--space-2);
    }
    
    .col-md-hide { display: none; }
    .col-1, .col-2 { grid-column: span 2; }
    .col-3, .col-4 { grid-column: span 4; }
    .col-5, .col-6 { grid-column: span 8; }
    .col-7, .col-8 { grid-column: span 8; }
    .col-9, .col-10, .col-11, .col-12 { grid-column: span 8; }

    .main-header {
        padding: var(--space-2) 0;
    }

    .desktop-nav, .desktop-nav-right {
        display: none; /* Fold to burger */
    }

    .header-left, .header-right {
        width: 20%;
    }
    
    .header-logo {
        width: 60%;
    }

    .logo-link {
        font-size: 1.3rem;
    }

    .chapter-section {
        padding: var(--space-8) 0;
    }

    .editorial-section-title {
        font-size: 2.2rem;
    }

    .hero-title {
        font-size: 2.6rem;
    }

    /* Philosophy layout adjustment */
    .philosophy-content-box {
        padding: var(--space-4) 0;
    }

    /* Materials layout adjustment */
    .material-controls-col, .material-display-col {
        grid-column: span 8;
    }

    .material-explorer-card {
        margin-top: var(--space-3);
    }

    /* Atelier timeline adjustment */
    .atelier-timeline-container {
        flex-direction: column;
        padding: 0 var(--space-4);
    }

    .atelier-media-sticky {
        width: 100%;
        position: relative;
        top: 0;
        height: 50vh;
        margin-bottom: var(--space-4);
    }

    .atelier-timeline-scroll {
        width: 100%;
        padding-left: 0;
    }

    .atelier-timeline-block {
        padding: var(--space-4) 0;
    }

    .atelier-timeline-block:last-child {
        padding-bottom: var(--space-4);
    }

    /* Lookbook adjustment */
    .lookbook-book {
        aspect-ratio: 1.2 / 1;
    }
    
    .lookbook-title {
        font-size: 1.8rem;
    }

    /* Patina layout adjustment */
    .patina-text-col, .patina-visual-col {
        grid-column: span 8;
    }

    .patina-canvas-container {
        margin-top: var(--space-3);
    }

    /* Boutiques layout adjustment */
    .boutiques-list-col, .boutique-preview-col {
        grid-column: span 8;
    }

    .boutique-preview-container {
        margin-top: var(--space-3);
    }

    /* Footer layout adjustment */
    .footer-brand-col, .footer-newsletter-col {
        grid-column: span 8;
    }

    .footer-links-col {
        grid-column: span 4;
        margin-top: var(--space-3);
    }
    
    .client-tabs-container {
        flex-direction: column;
    }
    
    .client-sidebar {
        width: 100%;
        flex-direction: row;
        border-right: none;
        border-bottom: var(--border-hairline);
        padding-right: 0;
        padding-bottom: var(--space-2);
        overflow-x: auto;
    }
    
    .client-tab-content {
        width: 100%;
        padding-left: 0;
        padding-top: var(--space-2);
    }
}

@media (max-width: 576px) {
    /* Mobile Configuration (4-Column layout simulation) */
    .grid-container {
        grid-template-columns: repeat(4, 1fr);
        padding: 0 var(--space-3);
    }

    .col-1, .col-2, .col-3, .col-4, .col-5, .col-6, 
    .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        grid-column: span 4;
    }

    .logo-link {
        font-size: 1.1rem;
        letter-spacing: 0.12em;
    }

    .hero-content {
        padding: 0 var(--space-3);
    }

    .hero-reveal-box {
        padding: 32px 22px;
        border-radius: 12px;
        margin-top: 40px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.05rem;
    }

    .editorial-section-title {
        font-size: 1.8rem;
    }

    .philosophy-headline {
        font-size: 1.6rem;
    }

    /* Touch Action & Native Mobile Optimization */
    button, a, .collection-tab-btn, .add-to-bag-hover-btn, .icon-btn {
        touch-action: manipulation;
        -webkit-tap-highlight-color: transparent;
    }

    /* Lookbook turn into simple fade carousel on mobile */
    .lookbook-wrapper {
        perspective: none;
    }
    
    .lookbook-book {
        aspect-ratio: 0.75 / 1;
        transform-style: flat;
    }

    .book-page {
        left: 0;
        width: 100%;
        transform-origin: center center;
        opacity: 0;
        pointer-events: none;
        transition: opacity var(--duration-standard) ease-out;
    }

    .book-page.active {
        opacity: 1;
        pointer-events: auto;
        transform: none !important;
    }

    .page-side {
        backface-visibility: visible;
        box-shadow: none;
    }

    .page-back {
        display: none;
    }

    /* Horizontally scrollable category tabs on mobile */
    .collections-tabs {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: var(--space-2);
        padding-left: var(--space-2);
        padding-right: var(--space-2);
        gap: 8px;
        scrollbar-width: none;
    }

    .collections-tabs::-webkit-scrollbar {
        display: none;
    }

    .collection-tab-btn {
        flex-shrink: 0;
        white-space: nowrap;
        font-size: 0.75rem;
        padding: 8px 16px;
    }

    /* 2-Column Mobile Product Grid (Luxury Fashion E-Commerce Standard) */
    .products-grid-container {
        display: grid !important;
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 12px !important;
        padding: 0 var(--space-2) !important;
    }

    .col-4.product-card-wrapper {
        grid-column: span 1 !important;
        width: 100% !important;
    }

    .product-card-meta {
        margin-top: 4px;
    }

    .product-card-title {
        font-size: 0.85rem;
        line-height: 1.25;
    }

    .product-card-price {
        font-size: 0.8rem;
    }

    .product-card-description {
        display: none; /* Keep mobile cards sleek & clean */
    }

    .add-to-bag-hover-btn {
        position: relative;
        bottom: auto;
        left: auto;
        transform: none;
        opacity: 1;
        width: 100%;
        margin-top: 8px;
        padding: 8px 10px;
        font-size: 0.68rem;
        border-radius: 6px;
    }

    .footer-links-col {
        grid-column: span 2;
    }
}

/* ============================================================
   MOBILE OPTIMIZATION
   ============================================================ */
@media (pointer: coarse) {
  .btn, .nav-link, .menu-item, .cart-btn, .wishlist-btn,
  .filter-btn, .size-btn, .color-swatch, .add-to-bag-btn,
  .add-to-bag-hover-btn, a, button {
    min-height: 44px;
    min-width: 44px;
    -webkit-tap-highlight-color: transparent;
  }
  .btn { padding: 14px 24px; }
  .add-to-bag-hover-btn { min-height: 40px; padding: 12px 16px; }
  body { cursor: auto; -webkit-text-size-adjust: 100%; }
  html, body { overflow-x: hidden; overscroll-behavior-x: none; }
}

@media (max-width: 480px) {
  .hero-headline, .hero-section h1 { font-size: 1.75rem; line-height: 1.15; }
  .hero-tagline, .hero-desc { font-size: 0.95rem; }
  .hero-ctas { flex-direction: column; width: 100%; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .grid-container { grid-template-columns: 1fr !important; padding: 0 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .product-card { min-width: unset; }
  .modal-content, .quickview-modal { width: 95vw; max-width: 95vw; }
  .size-btn { min-width: 40px; padding: 8px; }
  .color-swatch { width: 32px; height: 32px; }
}

@media (max-width: 768px) {
  .main-header {
    padding: 10px 16px;
  }
  .header-inner {
    height: 52px;
  }
  .header-logo .logo-link {
    font-size: 1.25rem;
    letter-spacing: 0.12em;
  }
  .desktop-nav, .desktop-nav-right {
    display: none !important;
  }
  .icon-btn#client-account-btn {
    display: none !important; /* Hide redundant account icon in header on mobile */
  }
  .header-right {
    gap: 12px;
  }
  .menu-overlay {
    padding: 80px 20px 30px 20px !important;
    justify-content: flex-start;
  }
  .menu-inner {
    display: flex !important;
    flex-direction: column !important;
    gap: 28px !important;
    padding: 0 !important;
    flex-grow: 0 !important;
  }
  .menu-nav-links, .menu-collections, .menu-boutiques {
    width: 100% !important;
    grid-column: span 12 !important;
  }
  .menu-item-link {
    font-size: 1.6rem !important;
  }
  .menu-footer {
    flex-direction: column !important;
    gap: 14px !important;
    align-items: flex-start !important;
    padding: 24px 0 0 0 !important;
    margin-top: 32px !important;
    border-top: 1px solid rgba(28, 28, 28, 0.15) !important;
  }
  .menu-footer-right {
    flex-direction: row !important;
    gap: 16px !important;
    margin-left: 0 !important;
  }
  .menu-footer-link {
    margin-left: 0 !important;
  }
}

/* ============================================================
   EDITORIAL & COMPONENT STYLING FIXES
   ============================================================ */
.collection-tab-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
    background-color: transparent;
    border: 1px solid rgba(28, 28, 28, 0.2);
    padding: 9px 20px;
    border-radius: 30px;
    cursor: pointer;
    transition: all var(--duration-micro) var(--ease-editorial);
    white-space: nowrap;
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.collection-tab-btn:hover,
.collection-tab-btn.active {
    color: #FDFBF7;
    background-color: var(--color-interactive);
    border-color: var(--color-interactive);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.editorial-container {
    width: 100%;
    position: relative;
}

.invite-text {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-primary);
    transition: color var(--duration-micro) var(--ease-editorial);
}

.audio-label, .handle-label {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-secondary);
}

.menu-nav-links, .menu-collections, .menu-boutiques {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.menu-footer-left, .menu-footer-right {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
}

.philosophy-text-col, .journal-card-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.form-submit-row {
    margin-top: var(--space-3);
    display: flex;
    justify-content: flex-end;
}

.scroll-trigger-effect {
    transition: transform var(--duration-standard) var(--ease-editorial), opacity var(--duration-standard) var(--ease-editorial);
}

.lookbook-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-large) var(--ease-editorial);
}

.lookbook-img:hover {
    transform: scale(1.03);
}

.loader-logo-svg {
    stroke: var(--color-text-primary);
    color: var(--color-text-primary);
}

.sunset-text-box {
    padding: var(--space-4);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-card);
    border: var(--border-hairline);
}