/* ==========================================================================
   gabel Pro — Modern Design System (Apple-inspired)
   ========================================================================== */

/* Design Tokens & CSS Variables */
:root {
    --bg-black: #000000;
    --bg-dark-gray: #161617;
    --bg-card: #1d1d1f;
    --text-primary: #f5f5f7;
    --text-secondary: #86868b;
    --text-dim: #6e6e73;
    --accent-color: #0071e3;
    --accent-color-hover: #2997ff;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-color-hover: rgba(255, 255, 255, 0.2);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Outfit', sans-serif;
    --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-quick: all 0.2s ease;
    
    /* Dynamic Swatch Colors */
    --glow-color: rgba(255, 255, 255, 0.05);
}

/* Base resets & styles */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    overflow-x: hidden;
}

/* Common Layout Containers */
.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

.max-width-md {
    max-width: 760px;
}

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

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-display);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* ==========================================================================
   Navigation
   ========================================================================== */

/* Main Translucent Nav Bar */
.global-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 48px;
    background-color: rgba(22, 22, 23, 0.75);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: var(--transition-quick);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1024px;
    height: 100%;
    margin: 0 auto;
    padding: 0 22px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    transition: opacity 0.2s ease;
}

.nav-logo:hover {
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-item {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 400;
    transition: color 0.2s ease;
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-cta-btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 12px;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

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

.nav-cta-btn-mobile {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.mobile-menu-toggle .bar {
    width: 18px;
    height: 1.5px;
    background-color: var(--text-primary);
    transition: var(--transition-quick);
}

/* Sub-Navbar (Apple-style Product Bar) */
.product-nav {
    position: sticky;
    top: 48px;
    width: 100%;
    height: 52px;
    background-color: rgba(22, 22, 23, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 99;
}

.product-nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1024px;
    height: 100%;
    margin: 0 auto;
    padding: 0 22px;
}

.product-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
}

.product-nav-actions {
    display: flex;
    align-items: center;
    gap: 18px;
}

.product-price {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.product-buy-btn {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 12px;
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.product-buy-btn:hover {
    background-color: var(--accent-color-hover);
}

/* ==========================================================================
   Section Layouts & General Components
   ========================================================================== */

section {
    padding: 100px 0;
    position: relative;
}

.section-eyebrow {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-weight: 500;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(180deg, #ffffff 0%, #a1a1a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-lead {
    font-size: 1.35rem;
    line-height: 1.5;
    color: var(--text-secondary);
    max-width: 720px;
    margin: 0 auto 50px auto;
    font-weight: 400;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 980px;
    font-size: 1rem;
    font-weight: 500;
    padding: 12px 24px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-quick);
    border: none;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #fff;
}

.btn-primary:hover {
    background-color: var(--accent-color-hover);
    transform: scale(1.02);
}

.btn-link {
    background: transparent;
    color: var(--accent-color);
    padding: 12px 16px;
    font-size: 1.1rem;
}

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

.btn-link .chevron {
    margin-left: 4px;
    transition: transform 0.2s ease;
}

.btn-link:hover .chevron {
    transform: translateX(4px);
}

/* Scroll Reveal animation triggers */
.scroll-reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 1s cubic-bezier(0.25, 1, 0.5, 1), transform 1s cubic-bezier(0.25, 1, 0.5, 1);
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero-section {
    padding-top: 150px;
    padding-bottom: 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background-color: var(--bg-black);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
}

.hero-text-content {
    max-width: 500px;
}

.hero-eyebrow {
    font-size: 1.5rem;
    color: var(--accent-color-hover);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.hero-title {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1.15;
    padding-bottom: 0.1em;
    margin-bottom: 12px;
    background: linear-gradient(180deg, #ffffff 0%, #86868b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-tagline {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--text-primary);
    line-height: 1.1;
}

.hero-subtagline {
    font-size: 1.25rem;
    line-height: 1.5;
    color: var(--text-secondary);
    margin-bottom: 36px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Fork visual and spotlight illumination */
.hero-image-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-glow {
    position: absolute;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, rgba(0, 0, 0, 0) 65%);
    z-index: 1;
    pointer-events: none;
    animation: pulseGlow 8s infinite alternate ease-in-out;
}

.hero-fork-image {
    width: 100%;
    max-width: 480px;
    height: auto;
    object-fit: contain;
    z-index: 2;
    filter: drop-shadow(0 25px 50px rgba(0,0,0,0.8)) brightness(0.9);
    animation: floatFork 6s infinite ease-in-out;
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
}

@keyframes floatFork {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-15px) rotate(1deg); }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.7; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

/* ==========================================================================
   Quad-Tine Section (Innovation Cards)
   ========================================================================== */

.quad-tine-section {
    background-color: var(--bg-dark-gray);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.tine-diagram-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-top: 50px;
}

.tine-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    text-align: left;
    transition: var(--transition-smooth);
}

.tine-card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.4);
}

.tine-visual {
    width: 80px;
    height: 80px;
    margin-bottom: 24px;
    background-color: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    border: 1px solid var(--border-color);
}

.tine-svg {
    width: 100%;
    height: 100%;
}

.tine-card h4 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.tine-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   Color Switcher Configurator Section
   ========================================================================== */

.colors-section {
    background-color: var(--bg-black);
}

.colors-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    align-items: center;
    gap: 60px;
}

.colors-image-area {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(255,255,255,0.01);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    padding: 80px 20px;
    min-height: 500px;
    overflow: hidden;
}

.color-fork-glow {
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, var(--glow-color) 0%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
    z-index: 1;
    transition: var(--transition-smooth);
}

.config-fork-image {
    width: 100%;
    max-width: 420px;
    height: auto;
    object-fit: contain;
    z-index: 2;
    mix-blend-mode: lighten;
    transition: filter 0.6s cubic-bezier(0.25, 1, 0.5, 1), transform 0.6s ease;
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
}

.colors-control-area {
    max-width: 440px;
}

.colors-desc {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 36px;
    font-size: 1.1rem;
}

.color-swatches {
    display: flex;
    gap: 20px;
    margin-bottom: 24px;
}

/* Round Color Swatch Buttons */
.swatch-btn {
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 2px solid transparent;
    cursor: pointer;
    outline: none;
    transition: var(--transition-quick);
    box-shadow: inset 0 3px 5px rgba(0,0,0,0.3);
}

.swatch-btn::after {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    border: 2px solid transparent;
    border-radius: 50%;
    transition: var(--transition-quick);
}

.swatch-btn.active::after {
    border-color: var(--accent-color);
}

.swatch-tooltip {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%) translateY(5px);
    background-color: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.75rem;
    padding: 4px 8px;
    border-radius: 6px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-quick);
    border: 1px solid var(--border-color);
}

.swatch-btn:hover .swatch-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.selected-color-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    font-family: var(--font-display);
}

/* Swatch Image Filtering Classes */
.colors-image-area.space-gray {
    --glow-color: rgba(255, 255, 255, 0.05);
}
.colors-image-area.space-gray img {
    filter: brightness(0.65) contrast(1.1);
}

.colors-image-area.silver {
    --glow-color: rgba(255, 255, 255, 0.12);
}
.colors-image-area.silver img {
    filter: brightness(1) contrast(1);
}

.colors-image-area.gold {
    --glow-color: rgba(229, 193, 88, 0.08);
}
.colors-image-area.gold img {
    filter: sepia(0.65) hue-rotate(8deg) saturate(1.8) brightness(0.9) contrast(1.05);
}

.colors-image-area.midnight {
    --glow-color: rgba(0, 80, 180, 0.08);
}
.colors-image-area.midnight img {
    filter: hue-rotate(185deg) saturate(0.6) brightness(0.55) contrast(1.2);
}

/* ==========================================================================
   Bento Grid Layout
   ========================================================================== */

.bento-section {
    background-color: var(--bg-dark-gray);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-rows: 240px;
    gap: 24px;
    margin-top: 50px;
}

.bento-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 28px;
    padding: 32px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.bento-card:hover {
    border-color: var(--border-color-hover);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    transform: translateY(-4px);
}

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

.row-span-2 {
    grid-row: span 2;
}

.bento-content {
    z-index: 2;
}

.card-tag {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    display: block;
    margin-bottom: 12px;
}

.bento-card h4 {
    font-size: 1.75rem;
    margin-bottom: 12px;
    line-height: 1.2;
}

.bento-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Custom Visuals inside Bento Cards */

/* omniFeed OS icons graphic */
.omnifeed-card {
    background: radial-gradient(circle at 80% 80%, rgba(41, 151, 255, 0.08), transparent 50%), var(--bg-card);
}

.omnifeed-card p {
    max-width: 480px;
}

.card-visual-custom {
    margin-top: auto;
    padding-top: 20px;
    display: flex;
    justify-content: flex-end;
}

.os-icons {
    display: flex;
    gap: 20px;
    font-size: 3rem;
    opacity: 0.85;
    animation: floatIcons 6s infinite alternate ease-in-out;
}

@keyframes floatIcons {
    0% { transform: translateY(0); }
    100% { transform: translateY(-10px); }
}

/* Battery Visual (ZeroPower) */
.zero-power-card {
    align-items: flex-start;
}

.battery-visual {
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 16px;
    width: 100%;
}

.battery-body {
    width: 70px;
    height: 32px;
    border: 2.5px solid var(--text-secondary);
    border-radius: 8px;
    padding: 2px;
    position: relative;
}

.battery-body::after {
    content: '';
    position: absolute;
    right: -7px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 10px;
    background-color: var(--text-secondary);
    border-radius: 0 3px 3px 0;
}

.battery-level {
    width: 100%;
    height: 100%;
    background-color: #34c759;
    border-radius: 3px;
    animation: batteryCharge 4s infinite alternate ease-in-out;
}

.battery-text {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: #34c759;
}

@keyframes batteryCharge {
    0% { width: 90%; }
    100% { width: 100%; }
}

/* Steel card textured gradient */
.steel-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.01) 0%, rgba(255,255,255,0.05) 100%), var(--bg-card);
}

/* Latency Card custom element */
.latency-card {
    background: radial-gradient(circle at 10% 90%, rgba(52, 199, 89, 0.05), transparent 60%), var(--bg-card);
}

/* ==========================================================================
   Tech Specs Accordion Section
   ========================================================================== */

.specs-section {
    background-color: var(--bg-black);
}

.accordion {
    margin-top: 40px;
    border-top: 1px solid var(--border-color);
}

.accordion-item {
    border-bottom: 1px solid var(--border-color);
}

.accordion-header {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 28px 0;
    background: none;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    outline: none;
    transition: color 0.2s ease;
}

.accordion-header:hover {
    color: var(--accent-color-hover);
}

/* Icon Plus transforming to Minus */
.icon-plus {
    position: relative;
    width: 16px;
    height: 16px;
}

.icon-plus::before, .icon-plus::after {
    content: '';
    position: absolute;
    background-color: currentColor;
    transition: transform 0.3s ease;
}

/* Horizontal line */
.icon-plus::before {
    top: 7px;
    left: 0;
    width: 16px;
    height: 2px;
}

/* Vertical line */
.icon-plus::after {
    top: 0;
    left: 7px;
    width: 2px;
    height: 16px;
}

.accordion-header[aria-expanded="true"] .icon-plus::after {
    transform: rotate(90deg);
    opacity: 0;
}

.accordion-header[aria-expanded="true"] .icon-plus::before {
    transform: rotate(180deg);
}

/* Dynamic Collapse container */
.accordion-collapse {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.accordion-body {
    padding-bottom: 28px;
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.05rem;
}

.accordion-body ul {
    list-style: none;
}

.accordion-body li {
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.03);
    padding-bottom: 8px;
}

.accordion-body li strong {
    color: var(--text-primary);
    font-weight: 400;
}

/* ==========================================================================
   Call To Action (CTA) Section
   ========================================================================== */

.cta-section {
    background-color: var(--bg-dark-gray);
    padding: 140px 0;
    overflow: hidden;
    border-top: 1px solid var(--border-color);
}

.cta-glow {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 200vw;
    height: 100%;
    background: radial-gradient(circle at top center, rgba(0, 113, 227, 0.15) 0%, rgba(0,0,0,0) 60%);
    pointer-events: none;
}

.cta-eyebrow {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.cta-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 20px;
    background: linear-gradient(180deg, #fff 0%, #a1a1a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-price {
    font-size: 1.35rem;
    margin-bottom: 8px;
    font-weight: 500;
}

.cta-delivery {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.btn-large {
    padding: 16px 40px;
    font-size: 1.25rem;
    font-weight: 600;
}

.assurance-badges {
    margin-top: 48px;
    display: flex;
    justify-content: center;
    gap: 32px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

/* ==========================================================================
   Footer Elements
   ========================================================================== */

.global-footer {
    background-color: var(--bg-dark-gray);
    color: var(--text-dim);
    font-size: 0.75rem;
    line-height: 1.6;
    padding: 40px 0 60px 0;
}

.footer-footnotes {
    margin-bottom: 30px;
}

.footer-footnotes p {
    margin-bottom: 8px;
}

.footer-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin-bottom: 24px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.footer-links {
    display: flex;
    gap: 16px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

.footer-country {
    color: var(--text-secondary);
}

/* ==========================================================================
   Responsive Adaptation (Mobile & Tablet)
   ========================================================================== */

@media (max-width: 900px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 40px;
    }
    
    .hero-text-content {
        max-width: 100%;
        margin: 0 auto;
    }
    
    .hero-title {
        font-size: 3.8rem;
    }
    
    .hero-tagline {
        font-size: 2rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-fork-image {
        max-width: 360px;
        margin-top: 30px;
    }

    .tine-diagram-container {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .colors-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .colors-image-area {
        padding: 40px 10px;
        min-height: 400px;
    }
    
    .colors-control-area {
        max-width: 100%;
        text-align: center;
    }
    
    .color-swatches {
        justify-content: center;
    }

    .bento-grid {
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }
    
    .col-span-2 {
        grid-column: span 1;
    }
    
    .row-span-2 {
        grid-row: span 1;
    }
    
    .omnifeed-card {
        aspect-ratio: auto;
    }

    .section-title {
        font-size: 2.3rem;
    }

    .cta-title {
        font-size: 2.8rem;
    }
    
    .assurance-badges {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
}

@media (max-width: 768px) {
    /* Mobile Menu Drawer Animation Toggle */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 48px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: rgba(22, 22, 23, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        gap: 0;
        overflow: hidden;
        transition: height 0.35s cubic-bezier(0.25, 1, 0.5, 1);
        z-index: 98;
    }
    
    .nav-links.open {
        height: calc(100vh - 48px);
    }
    
    .nav-item {
        width: 100%;
        padding: 22px 40px;
        font-size: 1.35rem;
        font-weight: 500;
        color: var(--text-primary);
        border-bottom: 1px solid rgba(255,255,255,0.04);
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
    }
    
    .nav-links.open .nav-item {
        opacity: 1;
        transform: translateY(0);
    }
    
    /* stagger delay for mobile menu items */
    .nav-links.open .nav-item:nth-child(1) { transition-delay: 0.1s; }
    .nav-links.open .nav-item:nth-child(2) { transition-delay: 0.15s; }
    .nav-links.open .nav-item:nth-child(3) { transition-delay: 0.2s; }
    .nav-links.open .nav-item:nth-child(4) { transition-delay: 0.25s; }
    
    .nav-cta-btn-mobile {
        display: block;
        margin: 40px;
        background-color: var(--accent-color);
        color: #fff;
        text-align: center;
        padding: 14px;
        border-radius: 12px;
        font-size: 1.1rem;
        text-decoration: none;
        font-weight: 500;
    }

    .nav-actions .nav-cta-btn {
        display: none; /* Hide top right pre-order button on small screens, drawer handles it */
    }
    
    .mobile-menu-toggle.open .bar:nth-child(1) {
        transform: translateY(2.5px) rotate(45deg);
    }
    
    .mobile-menu-toggle.open .bar:nth-child(2) {
        transform: translateY(-3px) rotate(-45deg);
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ==========================================================================
   Kaufen (Buy) Configurator Page Styling
   ========================================================================== */

.buy-page-body {
    background-color: var(--bg-black);
    padding-top: 100px;
    padding-bottom: 160px;
}

.product-nav-fixed {
    position: fixed !important;
    top: 48px !important;
}

.buy-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: start;
    position: relative;
    margin-top: 54px;
}

/* Left Sticky Gallery Panel */
.buy-gallery-panel {
    position: sticky;
    top: 140px;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: rgba(255,255,255,0.01);
    border: 1px solid var(--border-color);
    border-radius: 32px;
    padding: 60px 20px;
    min-height: 520px;
    overflow: hidden;
}

.buy-fork-wrapper {
    position: relative;
    width: 100%;
    max-width: 380px;
    display: flex;
    justify-content: center;
    align-items: center;
    mix-blend-mode: lighten;
}

.buy-fork-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    z-index: 2;
    mix-blend-mode: lighten;
    transition: filter 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    -webkit-mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
    mask-image: radial-gradient(circle, rgba(0,0,0,1) 75%, rgba(0,0,0,0) 100%);
}

/* Engraving Live Projection styling */
.engraving-projection {
    position: absolute;
    bottom: 22%; /* Positioning along the handle */
    left: 45%;
    transform: translate(-50%, 50%) rotate(-48deg); /* Rotate to match fork handle angle */
    font-family: var(--font-sans);
    font-size: 0.52rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.38); /* Laser engraved look */
    letter-spacing: 0.15em;
    text-transform: uppercase;
    white-space: nowrap;
    pointer-events: none;
    z-index: 3;
    text-shadow: 0.5px 0.5px 0.5px rgba(0,0,0,0.4), -0.5px -0.5px 0.5px rgba(255,255,255,0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.engraving-projection.active {
    opacity: 1;
}

/* Gallery color tint classes (matching config page) */
.buy-gallery-panel.space-gray { --glow-color: rgba(255,255,255,0.04); }
.buy-gallery-panel.space-gray img { filter: brightness(0.65) contrast(1.1); }

.buy-gallery-panel.silver { --glow-color: rgba(255,255,255,0.12); }
.buy-gallery-panel.silver img { filter: brightness(1) contrast(1); }

.buy-gallery-panel.gold { --glow-color: rgba(229,193,88,0.08); }
.buy-gallery-panel.gold img { filter: sepia(0.65) hue-rotate(8deg) saturate(1.8) brightness(0.9) contrast(1.05); }

.buy-gallery-panel.midnight { --glow-color: rgba(0,80,180,0.08); }
.buy-gallery-panel.midnight img { filter: hue-rotate(185deg) saturate(0.6) brightness(0.55) contrast(1.2); }

/* Right Configurator Options Panel */
.buy-config-panel {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.buy-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 24px;
}

.buy-eyebrow {
    font-size: 1.1rem;
    color: var(--accent-color-hover);
    margin-bottom: 6px;
}

.buy-title {
    font-size: 3.2rem;
    font-weight: 700;
}

.config-section {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.config-section-title {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
}

.config-section-title span {
    font-weight: 400;
    color: var(--text-secondary);
}

/* Selectable Cards (Model/Payment) */
.choice-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.choice-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-quick);
}

.choice-card:hover {
    border-color: var(--border-color-hover);
}

.choice-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.choice-details {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.choice-name {
    font-size: 1.15rem;
    font-weight: 600;
}

.choice-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.choice-price {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    white-space: nowrap;
    flex-shrink: 0;
}

/* Color Swatches inside checkout page */
.color-swatches-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.color-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition-quick);
}

.color-card:hover {
    border-color: var(--border-color-hover);
}

.color-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    box-shadow: inset 0 2px 3px rgba(0,0,0,0.3);
}

.color-name {
    font-size: 0.95rem;
    font-weight: 500;
}

/* Laser Engraving Option Inputs */
.engraving-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.engraving-box p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.engraving-input-wrapper {
    position: relative;
    width: 100%;
}

.engraving-text-input {
    width: 100%;
    background-color: var(--bg-black);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 14px;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: var(--font-sans);
    outline: none;
    transition: var(--transition-quick);
    text-transform: uppercase;
}

.engraving-text-input:focus {
    border-color: var(--accent-color);
}

.char-counter {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.8rem;
    color: var(--text-dim);
}

/* Sticky Bottom Summary Checkout Bar */
.checkout-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(22, 22, 23, 0.8);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    border-top: 1px solid var(--border-color);
    padding: 16px 0;
    z-index: 98;
    box-shadow: 0 -10px 30px rgba(0,0,0,0.4);
}

.checkout-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.summary-text-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.summary-title {
    font-size: 1.15rem;
    font-weight: 600;
}

.summary-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

.summary-actions {
    display: flex;
    align-items: center;
    gap: 24px;
}

.summary-total-price {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    white-space: nowrap;
    flex-shrink: 0;
}

.checkout-btn {
    background-color: var(--accent-color);
    color: #fff;
    padding: 10px 24px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 20px;
    text-decoration: none;
    transition: var(--transition-quick);
}

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

/* Checkout Page Responsive */
@media (max-width: 900px) {
    .buy-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .buy-gallery-panel {
        position: relative;
        top: 0;
        min-height: 380px;
        padding: 40px 10px;
    }
    
    .checkout-bar-content {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .summary-actions {
        width: 100%;
        justify-content: space-between;
    }
}

/* ==========================================================================
   Static Finishes Showcase & Bento Grid Tag Styles
   ========================================================================== */

.finishes-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 30px;
}

.finish-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    transition: var(--transition-quick);
}

.finish-item:hover {
    border-color: var(--border-color-hover);
    transform: translateX(5px);
}

.finish-item .color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    box-shadow: inset 0 2px 3px rgba(0,0,0,0.3);
    flex-shrink: 0;
}

.finish-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.finish-title {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    font-family: var(--font-display);
}

.finish-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.os-tag {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-family: var(--font-sans);
    transition: var(--transition-quick);
}

.os-tag:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}