/* Style Sheet - VR Solutions Corporate Website */

/* ==========================================================================
   1. Design Tokens & Core Settings
   ========================================================================== */
:root {
    /* Color Palette */
    --color-bg-dark: #0A0A0A;
    --color-bg-card: rgba(20, 20, 20, 0.65);
    --color-gold-primary: #D4AF37;
    --color-gold-light: #FBF5B7;
    --color-gold-dark: #AA771C;
    --color-silver-primary: #C0C0C0;
    --color-silver-light: #F5F5F5;
    --color-silver-dark: #9E9E9E;
    
    /* Luxury Gradients */
    --gradient-gold: linear-gradient(135deg, #BF953F 0%, #FCF6BA 25%, #B38728 50%, #FBF5B7 75%, #AA771C 100%);
    --gradient-gold-hover: linear-gradient(135deg, #AA771C 0%, #B38728 25%, #FBF5B7 50%, #FCF6BA 75%, #BF953F 100%);
    --gradient-dark: linear-gradient(180deg, #121212 0%, #050505 100%);
    --gradient-glow: radial-gradient(circle, rgba(212, 175, 55, 0.15) 0%, rgba(10, 10, 10, 0) 70%);
    
    /* Layout & Details */
    --border-glass: 1px solid rgba(255, 255, 255, 0.05);
    --border-gold: 1px solid rgba(212, 175, 55, 0.2);
    --border-gold-focus: 1px solid rgba(212, 175, 55, 0.6);
    --shadow-premium: 0 15px 35px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 25px rgba(212, 175, 55, 0.2);
    --shadow-glow-intense: 0 0 40px rgba(212, 175, 55, 0.35);
    
    /* Fonts */
    --font-serif: 'Cinzel', serif;
    --font-sans: 'Outfit', sans-serif;
    
    /* Scroll Properties */
    scroll-behavior: smooth;
}

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

body {
    background-color: var(--color-bg-dark);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-weight: 300;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Premium Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #050505;
}
::-webkit-scrollbar-thumb {
    background: #252525;
    border-radius: 4px;
    border: 2px solid #050505;
    transition: background 0.3s ease;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-gold-primary);
}

/* Typography Selection */
::selection {
    background: var(--color-gold-primary);
    color: var(--color-bg-dark);
}

/* ==========================================================================
   2. Helper Classes & Layout Utilities
   ========================================================================== */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 120px 0;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 30px;
}
.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-2 { grid-template-columns: 1fr; }
    .section-padding { padding: 80px 0; }
}
@media (max-width: 600px) {
    .grid-4 { grid-template-columns: 1fr; }
}

/* Typography elements */
.section-header {
    margin-bottom: 60px;
}
.text-center { text-align: center; }

.section-tag {
    color: var(--color-gold-primary);
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 3px;
    display: block;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--color-silver-dark);
    max-width: 650px;
    margin: 0 auto;
}

.section-description {
    font-size: 1.05rem;
    color: var(--color-silver-light);
    opacity: 0.85;
    margin-bottom: 24px;
}

.gold-text-gradient {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

.silver-text-gradient {
    background: linear-gradient(135deg, #FFFFFF 0%, #C0C0C0 50%, #8E9EAB 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 700;
}

/* Glassmorphism Card Style */
.glass-card {
    background: var(--color-bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-premium);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Premium Buttons */
.cta-button {
    display: inline-block;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.primary-btn {
    background: var(--gradient-gold);
    color: var(--color-bg-dark);
    border: none;
}
.primary-btn:hover {
    background: var(--gradient-gold-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.secondary-btn {
    background: transparent;
    color: #FFFFFF;
    border: 1.5px solid var(--color-silver-primary);
}
.secondary-btn:hover {
    background: #FFFFFF;
    color: var(--color-bg-dark);
    border-color: #FFFFFF;
    transform: translateY(-2px);
}

/* ==========================================================================
   3. Sticky Navbar & Header
   ========================================================================== */
.navbar-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 90px;
    z-index: 1000;
    display: flex;
    align-items: center;
    background: rgba(10, 10, 10, 0.4);
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.navbar-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 32px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Logo block */
.logo-link {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 15px;
}
.nav-logo-img {
    height: 50px;
    width: 50px;
    object-fit: contain;
    transition: transform 0.4s ease;
}
.logo-link:hover .nav-logo-img {
    transform: rotate(5deg) scale(1.05);
}
.logo-text-wrapper {
    display: flex;
    flex-direction: column;
}
.logo-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 2px;
}
.logo-tagline {
    font-size: 0.6rem;
    color: var(--color-gold-primary);
    text-transform: uppercase;
    letter-spacing: 2.2px;
    margin-top: 1px;
}

/* Nav Menu Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}
.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
    padding: 6px 0;
    transition: color 0.3s ease;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--gradient-gold);
    transition: width 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.nav-link:hover, .nav-link.active {
    color: var(--color-gold-primary);
}
.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}
.nav-cta {
    padding: 10px 20px;
    font-size: 0.75rem;
    border: 1px solid var(--color-gold-primary);
    background: transparent;
    color: var(--color-gold-primary);
}
.nav-cta:hover {
    background: var(--gradient-gold);
    color: var(--color-bg-dark);
    box-shadow: var(--shadow-glow);
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
}
.mobile-toggle .bar {
    width: 100%;
    height: 2px;
    background: #FFFFFF;
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Native CSS Scroll-Driven Navbar Animation */
@supports ((animation-timeline: scroll()) and (animation-range: 0% 100%)) {
    @keyframes header-shrink {
        to {
            height: 70px;
            background: rgba(10, 10, 10, 0.85);
            border-bottom: 1px solid rgba(212, 175, 55, 0.15);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }
    }
    .navbar-header {
        animation: header-shrink auto linear both;
        animation-timeline: scroll(block root);
        animation-range: 0px 100px;
    }
}

/* JS Fallback Class (if scroll timeline is not supported) */
.navbar-header.shrunk {
    height: 70px;
    background: rgba(10, 10, 10, 0.85);
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* Mobile Navigation Drawer */
.mobile-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    max-width: 320px;
    height: 100%;
    background: rgba(8, 8, 8, 0.98);
    border-left: var(--border-glass);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    padding: 40px;
    transition: right 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.mobile-drawer.open {
    right: 0;
}
.drawer-close {
    align-self: flex-end;
    background: transparent;
    border: none;
    color: #FFFFFF;
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    margin-bottom: 40px;
}
.drawer-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}
.drawer-link {
    text-decoration: none;
    color: #FFFFFF;
    font-size: 1.1rem;
    font-family: var(--font-sans);
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: color 0.3s ease;
}
.drawer-link:hover {
    color: var(--color-gold-primary);
}
.drawer-cta {
    margin-top: 20px;
    text-align: center;
}

@media (max-width: 991px) {
    .nav-menu, .nav-cta { display: none; }
    .mobile-toggle { display: flex; }
    .navbar-header { height: 75px; }
}

/* ==========================================================================
   4. Hero Section
   ========================================================================== */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #000000;
}

#hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.hero-glow-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(212, 175, 55, 0.05) 0%, rgba(0, 0, 0, 0) 80%),
                linear-gradient(to bottom, rgba(10, 10, 10, 0) 70%, rgba(10, 10, 10, 1) 100%);
    z-index: 2;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 900px;
    text-align: center;
    margin: 0 auto;
}

.hero-mini-tag {
    color: var(--color-gold-primary);
    text-transform: uppercase;
    font-weight: 500;
    letter-spacing: 6px;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 24px;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 28px;
    letter-spacing: 2px;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-silver-light);
    opacity: 0.85;
    max-width: 750px;
    margin: 0 auto 40px auto;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 20px;
}

/* Scroll indicator mouse animation */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0.7;
}
.scroll-text {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-silver-primary);
}
.mouse {
    width: 20px;
    height: 32px;
    border: 2px solid var(--color-silver-primary);
    border-radius: 12px;
    position: relative;
}
.wheel {
    width: 4px;
    height: 6px;
    background: var(--color-gold-primary);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-wheel 1.6s infinite ease-out;
}

@keyframes scroll-wheel {
    0% { top: 6px; opacity: 0; }
    30% { opacity: 1; }
    100% { top: 18px; opacity: 0; }
}

@media (max-width: 768px) {
    .hero-title { font-size: 2.8rem; }
    .hero-description { font-size: 1.05rem; }
    .hero-actions { flex-direction: column; gap: 15px; align-items: center; }
    .hero-actions .cta-button { width: 100%; max-width: 280px; text-align: center; }
}

/* ==========================================================================
   5. About Section
   ========================================================================== */
.about-image-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
}
.image-frame-gold {
    position: relative;
    padding: 12px;
    border: var(--border-gold);
    border-radius: 8px;
    box-shadow: var(--shadow-glow);
    background: rgba(10, 10, 10, 0.5);
    transition: box-shadow 0.4s ease;
}
.image-frame-gold::before {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    width: calc(100% + 12px);
    height: calc(100% + 12px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    pointer-events: none;
    border-radius: 12px;
}
.about-image {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    display: block;
    filter: grayscale(10%) contrast(105%);
}
.image-frame-gold:hover {
    box-shadow: var(--shadow-glow-intense);
}

.stats-grid {
    margin-top: 40px;
}
.stat-card {
    border-radius: 8px;
    padding: 20px;
    text-align: left;
}
.stat-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gold-primary);
}
.stat-plus {
    font-size: 1.8rem;
    color: var(--color-gold-primary);
    font-family: var(--font-serif);
    margin-left: 2px;
}
.stat-label {
    font-size: 0.85rem;
    color: var(--color-silver-dark);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ==========================================================================
   6. Business Verticals Section
   ========================================================================== */
.verticals-grid {
    position: relative;
}
.vertical-card {
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    height: 100%;
    min-height: 320px;
}
.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.04) 0%, rgba(0, 0, 0, 0) 65%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}
.vertical-card:hover .card-glow {
    opacity: 1;
}

.card-icon-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 24px;
    transition: all 0.4s ease;
}
.card-icon {
    width: 28px;
    height: 28px;
    fill: none;
    stroke: var(--color-gold-primary);
    stroke-width: 1.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: transform 0.4s ease;
}
.vertical-card:hover .card-icon-wrapper {
    background: rgba(212, 175, 55, 0.06);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.1);
}
.vertical-card:hover .card-icon {
    transform: scale(1.1);
}

.card-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}
.vertical-card:hover .card-title {
    color: var(--color-gold-primary);
}

.card-description {
    font-size: 0.9rem;
    color: var(--color-silver-dark);
    margin-bottom: 24px;
    flex-grow: 1;
}

.card-btn {
    text-decoration: none;
    color: var(--color-gold-primary);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: auto;
    transition: color 0.3s ease;
}
.card-btn .arrow {
    transition: transform 0.3s ease;
}
.vertical-card:hover .card-btn {
    color: #FFFFFF;
}
.vertical-card:hover .card-btn .arrow {
    transform: translateX(4px);
}
.vertical-card:hover {
    border-color: rgba(212, 175, 55, 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.8), 0 0 20px rgba(212, 175, 55, 0.1);
    transform: translateY(-8px);
}

/* ==========================================================================
   7. Why Choose Section (Timeline)
   ========================================================================== */
.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 80px auto 0 auto;
}
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, rgba(212, 175, 55, 0) 0%, rgba(212, 175, 55, 0.5) 15%, rgba(212, 175, 55, 0.5) 85%, rgba(212, 175, 55, 0) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    margin-bottom: 40px;
}
.timeline-item:nth-child(even) {
    margin-left: 50%;
    padding-left: 45px;
}
.timeline-item:nth-child(odd) {
    margin-left: 0;
    padding-right: 45px;
    text-align: right;
}

.timeline-dot {
    position: absolute;
    width: 14px;
    height: 14px;
    background: #0A0A0A;
    border: 3px solid var(--color-gold-primary);
    border-radius: 50%;
    top: 30px;
    z-index: 5;
    box-shadow: 0 0 10px var(--color-gold-primary);
    transition: all 0.3s ease;
}
.timeline-item:nth-child(even) .timeline-dot {
    left: -7px;
}
.timeline-item:nth-child(odd) .timeline-dot {
    right: -7px;
}
.timeline-item:hover .timeline-dot {
    background: var(--color-gold-primary);
    transform: scale(1.3);
    box-shadow: 0 0 15px var(--color-gold-primary);
}

.timeline-content {
    position: relative;
    padding: 30px;
}
.timeline-number {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: rgba(212, 175, 55, 0.15);
    position: absolute;
    top: 15px;
    right: 20px;
}
.timeline-item:nth-child(odd) .timeline-number {
    left: 20px;
    right: auto;
}

.timeline-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 8px;
}
.timeline-text {
    font-size: 0.9rem;
    color: var(--color-silver-dark);
}

@media (max-width: 768px) {
    .timeline-line { left: 20px; }
    .timeline-item { width: 100%; margin-left: 0 !important; padding-left: 45px !important; padding-right: 0 !important; text-align: left !important; }
    .timeline-dot { left: 13px !important; }
    .timeline-number { right: 20px !important; left: auto !important; }
}

/* ==========================================================================
   8. Industries Impact Infographic
   ========================================================================== */
.interactive-diagram-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
}
.svg-diagram {
    width: 100%;
    max-width: 700px;
    height: auto;
}

.infographic-line {
    stroke: rgba(255, 255, 255, 0.06);
    stroke-width: 1.5;
    transition: all 0.5s ease;
}
.infographic-line.active {
    stroke: var(--color-gold-primary);
    stroke-width: 2.5;
    stroke-dasharray: 8, 4;
    animation: linePulse 2s infinite linear;
}

@keyframes linePulse {
    to { stroke-dashoffset: -20; }
}

.infographic-node {
    cursor: pointer;
}
.node-bg {
    fill: var(--color-bg-card);
    stroke: rgba(255, 255, 255, 0.08);
    stroke-width: 1.5;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.node-icon {
    font-family: var(--font-serif);
    font-size: 0.75rem;
    font-weight: 700;
    fill: var(--color-silver-primary);
    text-anchor: middle;
    pointer-events: none;
    transition: all 0.4s ease;
}
.node-label {
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 500;
    fill: var(--color-silver-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    text-anchor: middle;
    pointer-events: none;
    transition: all 0.4s ease;
}

.infographic-node:hover .node-bg, .infographic-node.active .node-bg {
    fill: rgba(212, 175, 55, 0.12);
    stroke: var(--color-gold-primary);
    box-shadow: var(--shadow-glow);
}
.infographic-node:hover .node-icon, .infographic-node.active .node-icon {
    fill: var(--color-gold-light);
}
.infographic-node:hover .node-label, .infographic-node.active .node-label {
    fill: var(--color-gold-primary);
}

.center-node {
    pointer-events: none;
}
.center-glow {
    fill: var(--color-gold-primary);
    opacity: 0.25;
}
.center-bg {
    fill: #000000;
    stroke: var(--color-gold-primary);
    stroke-width: 2px;
}
.center-text-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 900;
    fill: #FFFFFF;
    text-anchor: middle;
}
.center-text-sub {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    fill: var(--color-gold-primary);
    text-anchor: middle;
}

.infographic-detail-card {
    width: 100%;
    max-width: 550px;
    text-align: center;
    border-color: rgba(212, 175, 55, 0.15);
    background: rgba(15, 15, 15, 0.85);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(212, 175, 55, 0.05);
}
.detail-title {
    font-family: var(--font-serif);
    font-size: 1.45rem;
    font-weight: 600;
    color: #FFFFFF;
    margin-bottom: 4px;
}
.detail-tagline {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}
.detail-text {
    font-size: 0.95rem;
    color: var(--color-silver-light);
    opacity: 0.85;
}

/* ==========================================================================
   9. Portfolio Section
   ========================================================================== */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 50px;
}
.filter-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--color-silver-primary);
    padding: 10px 20px;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.filter-btn:hover, .filter-btn.active {
    color: var(--color-bg-dark);
    border-color: var(--color-gold-primary);
    background: var(--gradient-gold);
    box-shadow: var(--shadow-glow);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: 280px;
    gap: 20px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    border: var(--border-glass);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Layout variation to simulate masonry structure */
.portfolio-item:nth-child(2) { grid-row: span 2; }
.portfolio-item:nth-child(5) { grid-column: span 2; }
.portfolio-item:nth-child(7) { grid-row: span 2; }

@media (max-width: 1024px) {
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 240px; }
    .portfolio-item:nth-child(5) { grid-column: span 1; }
}
@media (max-width: 600px) {
    .portfolio-grid { grid-template-columns: 1fr; grid-auto-rows: 240px; }
    .portfolio-item { grid-row: span 1 !important; grid-column: span 1 !important; }
}

.portfolio-img-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}
.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.165, 0.84, 0.44, 1);
}
.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(10, 10, 10, 0.95) 0%, rgba(10, 10, 10, 0.4) 60%, rgba(10, 10, 10, 0.1) 100%);
    padding: 30px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    opacity: 0;
    transform: translateY(15px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.portfolio-category {
    color: var(--color-gold-primary);
    text-transform: uppercase;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 6px;
}
.portfolio-item-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 6px;
}
.portfolio-item-desc {
    font-size: 0.8rem;
    color: var(--color-silver-dark);
    margin-bottom: 16px;
}
.portfolio-view-btn {
    font-size: 0.75rem;
    color: #FFFFFF;
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 1px;
}

/* Item Hovers */
.portfolio-item:hover {
    box-shadow: var(--shadow-premium), 0 0 20px rgba(212, 175, 55, 0.08);
    border-color: rgba(212, 175, 55, 0.2);
}
.portfolio-item:hover .portfolio-img {
    transform: scale(1.08);
}
.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    transform: translateY(0);
}

/* Animation classes for filters */
.portfolio-item.hidden {
    display: none !important;
}

/* ==========================================================================
   10. Testimonials Section
   ========================================================================== */
.carousel-outer-wrapper {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    padding: 20px;
}
.carousel-container {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.165, 0.84, 0.44, 1);
    width: 400%; /* Adjust according to slide count */
}

.testimonial-slide {
    width: 25%; /* 100% / slide count */
    padding: 40px;
    text-align: center;
    opacity: 0.4;
    scale: 0.95;
    transition: opacity 0.5s ease, scale 0.5s ease;
    border-color: rgba(212, 175, 55, 0.1);
}
.testimonial-slide.active {
    opacity: 1;
    scale: 1;
    border-color: rgba(212, 175, 55, 0.25);
    box-shadow: var(--shadow-premium), 0 0 25px rgba(212, 175, 55, 0.08);
}

.rating-stars {
    color: var(--color-gold-primary);
    font-size: 1.1rem;
    margin-bottom: 20px;
    letter-spacing: 4px;
}
.testimonial-text {
    font-family: var(--font-sans);
    font-size: 1.15rem;
    font-weight: 300;
    font-style: italic;
    color: var(--color-silver-light);
    line-height: 1.7;
    margin-bottom: 24px;
}
.testimonial-author-info {
    display: inline-block;
}
.author-name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: #FFFFFF;
}
.author-title {
    font-size: 0.75rem;
    color: var(--color-silver-dark);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-top: 4px;
}

/* Control Buttons */
.carousel-control {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(10, 10, 10, 0.6);
    border: var(--border-glass);
    color: #FFFFFF;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    transition: all 0.3s ease;
    z-index: 10;
}
.carousel-control:hover {
    border-color: var(--color-gold-primary);
    color: var(--color-gold-primary);
    background: #000000;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}
.prev-control { left: 0; }
.next-control { right: 0; }

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 30px;
}
.carousel-dot {
    width: 6px;
    height: 6px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}
.carousel-dot.active {
    background: var(--color-gold-primary);
    width: 16px;
    border-radius: 3px;
}

@media (max-width: 768px) {
    .testimonial-slide { padding: 30px 15px; }
    .carousel-control { display: none; }
}

/* ==========================================================================
   11. Contact Section (Form Validation)
   ========================================================================== */
.contact-info {
    padding-right: 40px;
}
.contact-methods {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 28px;
}
.method-item {
    display: flex;
    align-items: center;
    gap: 20px;
}
.method-icon-wrapper {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 6px;
    width: 48px;
    height: 48px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.method-icon {
    width: 22px;
    height: 22px;
    fill: var(--color-gold-primary);
}
.method-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    font-weight: 600;
    color: #FFFFFF;
}
.method-value {
    font-size: 0.85rem;
    color: var(--color-silver-dark);
}

/* Form inputs styling */
.luxury-form {
    border-color: rgba(212, 175, 55, 0.15);
    background: rgba(15, 15, 15, 0.7);
}
.form-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.form-subtitle {
    font-size: 0.85rem;
    color: var(--color-silver-dark);
    margin-bottom: 32px;
}

.form-group {
    position: relative;
    margin-bottom: 24px;
}

.form-input {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 1.5px solid rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 300;
    outline: none;
    transition: all 0.3s ease;
}

.form-label {
    position: absolute;
    top: 12px;
    left: 0;
    font-size: 0.95rem;
    color: var(--color-silver-dark);
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Input Floating Label Logic */
.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
    top: -12px;
    font-size: 0.75rem;
    color: var(--color-gold-primary);
    font-weight: 600;
    letter-spacing: 1px;
}

.form-input:focus {
    border-bottom: 1.5px solid var(--color-gold-primary);
}

.text-area {
    min-height: 100px;
    resize: none;
}

/* Select element styling */
.form-select {
    width: 100%;
    padding: 12px 0;
    background: transparent;
    border: none;
    border-bottom: 1.5px solid rgba(255, 255, 255, 0.1);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 300;
    outline: none;
    appearance: none;
    cursor: pointer;
}
.form-select option {
    background: var(--color-bg-dark);
    color: #FFFFFF;
}

/* floating label for select */
.select-label {
    transition: all 0.3s ease;
}
.form-select:focus ~ .select-label,
.form-select:valid ~ .select-label {
    top: -12px;
    font-size: 0.75rem;
    color: var(--color-gold-primary);
    font-weight: 600;
    letter-spacing: 1px;
}
.form-select:focus {
    border-bottom: 1.5px solid var(--color-gold-primary);
}

/* Form validation status colors */
.form-input.invalid, .form-select.invalid {
    border-bottom-color: #e74c3c;
}
.error-msg {
    color: #e74c3c;
    font-size: 0.7rem;
    margin-top: 4px;
    display: none;
}
.form-input.invalid ~ .error-msg, .form-select.invalid ~ .error-msg {
    display: block;
}

.form-submit-btn {
    width: 100%;
    background: var(--gradient-gold);
    color: var(--color-bg-dark);
    border: none;
    font-size: 0.85rem;
    padding: 16px;
    margin-top: 10px;
}
.form-submit-btn:hover {
    background: var(--gradient-gold-hover);
    box-shadow: var(--shadow-glow-intense);
}

.form-status-msg {
    margin-top: 15px;
    font-size: 0.9rem;
    text-align: center;
    display: none;
}
.form-status-msg.success {
    display: block;
    color: var(--color-gold-primary);
}
.form-status-msg.error {
    display: block;
    color: #e74c3c;
}

/* ==========================================================================
   12. Footer Section
   ========================================================================== */
.footer-section {
    background: #050505;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    padding: 80px 0 30px 0;
}
.footer-grid {
    margin-bottom: 60px;
}
.footer-column-title {
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 24px;
    position: relative;
    display: inline-block;
}
.footer-column-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 25px;
    height: 1.5px;
    background: var(--color-gold-primary);
}

.info-column {
    padding-right: 20px;
}
.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    margin-bottom: 20px;
}
.footer-logo-img {
    height: 36px;
    width: 36px;
    object-fit: contain;
}
.footer-logo-text {
    font-family: var(--font-serif);
    font-size: 1.15rem;
    font-weight: 700;
    color: #FFFFFF;
    letter-spacing: 1.5px;
}
.footer-desc {
    font-size: 0.85rem;
    color: var(--color-silver-dark);
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 10px;
}
.social-icon-btn {
    width: 36px;
    height: 36px;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.01);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}
.social-svg {
    width: 16px;
    height: 16px;
    fill: var(--color-silver-primary);
    transition: fill 0.3s ease;
}
.social-icon-btn:hover {
    border-color: var(--color-gold-primary);
    background: rgba(212, 175, 55, 0.05);
    transform: translateY(-2px);
}
.social-icon-btn:hover .social-svg {
    fill: var(--color-gold-primary);
}

/* Footer Link list */
.footer-links-list {
    list-style: none;
}
.footer-links-list li {
    margin-bottom: 12px;
}
.footer-link {
    text-decoration: none;
    color: var(--color-silver-dark);
    font-size: 0.85rem;
    transition: color 0.3s ease, padding-left 0.3s ease;
}
.footer-link:hover {
    color: var(--color-gold-primary);
    padding-left: 4px;
}

/* Newsletter Column */
.newsletter-desc {
    font-size: 0.85rem;
    color: var(--color-silver-dark);
    margin-bottom: 20px;
}
.footer-newsletter-form {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.newsletter-input {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    padding: 12px;
    border-radius: 4px;
    outline: none;
    transition: border-color 0.3s ease;
}
.newsletter-input:focus {
    border-color: var(--color-gold-primary);
}
.newsletter-submit-btn {
    background: var(--gradient-gold);
    color: var(--color-bg-dark);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 12px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.3s ease;
}
.newsletter-submit-btn:hover {
    background: var(--gradient-gold-hover);
}
.newsletter-status {
    font-size: 0.75rem;
    margin-top: 8px;
    display: block;
}
.newsletter-status.success { color: var(--color-gold-primary); }
.newsletter-status.error { color: #e74c3c; }

/* Footer bottom */
.footer-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}
.footer-copyright {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
}
.footer-legal-links {
    display: flex;
    gap: 24px;
}
.legal-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.8rem;
    transition: color 0.3s ease;
}
.legal-link:hover {
    color: var(--color-gold-primary);
}

@media (max-width: 768px) {
    .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* ==========================================================================
   13. Back to Top Button
   ========================================================================== */
.back-to-top {
    position: fixed;
    bottom: -50px;
    right: 30px;
    width: 45px;
    height: 45px;
    border-radius: 4px;
    background: rgba(10, 10, 10, 0.85);
    border: var(--border-gold);
    color: var(--color-gold-primary);
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 999;
    box-shadow: var(--shadow-premium);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    opacity: 0;
    pointer-events: none;
}
.back-to-top.visible {
    bottom: 30px;
    opacity: 1;
    pointer-events: auto;
}
.back-to-top:hover {
    background: var(--gradient-gold);
    color: var(--color-bg-dark);
    box-shadow: var(--shadow-glow-intense);
    transform: translateY(-4px);
}

/* ==========================================================================
   14. Scroll-Triggered Reveal Animations
   ========================================================================== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal.reveal-active {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-left.reveal-active {
    opacity: 1;
    transform: translateX(0);
}

.scroll-reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-right.reveal-active {
    opacity: 1;
    transform: translateX(0);
}

/* Grid reveals delay cascade */
.scroll-reveal-card {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1), border-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
}
.scroll-reveal-card.reveal-active {
    opacity: 1;
    transform: translateY(0);
}

.scroll-reveal-timeline {
    opacity: 0;
    transform: scale(0.95) translateY(20px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}
.scroll-reveal-timeline.reveal-active {
    opacity: 1;
    transform: scale(1) translateY(0);
}

/* Prefers Reduced Motion Settings */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-delay: -1ms !important;
        animation-duration: 1ms !important;
        animation-iteration-count: 1 !important;
        background-attachment: initial !important;
        scroll-behavior: auto !important;
        transition-duration: 0s !important;
        transition-delay: 0s !important;
    }
    .scroll-reveal, .scroll-reveal-left, .scroll-reveal-right, .scroll-reveal-card, .scroll-reveal-timeline {
        opacity: 1 !important;
        transform: none !important;
    }
    #hero-particles {
        display: none !important;
    }
}