:root {
    --bg-color: #ffffff;
    --text-color: #1a1a1a;
    --accent-color: #000000;
    --gold-color: #c5a059;
    --gold-light: #e0c58e;
    --gold-dark: #8e6d2f;
    --off-white: #f8f8f8;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;
    --spacing-unit: 2rem;
    --transition-speed: 0.6s;
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
}

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

body {
    font-family: var(--font-body);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--bg-color);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    color: var(--accent-color);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 3rem;
}

/* Sticky Navigation */
.sticky-nav {
    position: sticky;
    top: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    padding: 1.2rem 0;
    border-bottom: 1px solid rgba(197, 160, 89, 0.2);
}

.sticky-nav ul {
    display: flex;
    justify-content: center;
    gap: 3rem;
    list-style: none;
}

.sticky-nav a {
    color: #fff;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 400;
    padding: 0.5rem 1rem;
    position: relative;
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.sticky-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--gold-color), transparent);
    transition: all 0.4s cubic-bezier(0.19, 1, 0.22, 1);
    transform: translateX(-50%);
}

.sticky-nav a:hover::after,
.sticky-nav a.active::after {
    width: 100%;
}

.sticky-nav a:hover,
.sticky-nav a.active {
    color: var(--gold-color);
    text-shadow: 0 0 20px rgba(197, 160, 89, 0.5);
}

/* Section Headings */
h2[data-number] {
    font-size: 3rem;
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
}

h2[data-number]::before {
    content: attr(data-number);
    position: absolute;
    left: -4rem;
    top: 0;
    font-size: 1rem;
    color: var(--gold-color);
    font-family: var(--font-body);
    font-weight: 300;
}

/* Split Content Layout */
.split-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.split-content .visual img {
    width: 100%;
    height: auto;
    object-fit: cover;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
    cursor: zoom-in;
}

.split-content .visual img:hover {
    transform: scale(1.02) translateY(-5px);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
}

/* Intro Text */
.intro-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: #444;
    margin-bottom: 3rem;
    max-width: 600px;
}

/* Detail Items */
.detail-item {
    margin-bottom: 2.5rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--gold-color);
}

.detail-item h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: var(--accent-color);
}

.detail-item p {
    color: #555;
    line-height: 1.7;
}

.feature-card {
    background: #fff;
    padding: 2.5rem;
    border: 1px solid #eee;
    transition: all 0.5s cubic-bezier(0.19, 1, 0.22, 1);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: linear-gradient(180deg, var(--gold-color), var(--gold-dark));
    transition: height 0.5s cubic-bezier(0.19, 1, 0.22, 1);
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(197, 160, 89, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.feature-card:hover::before {
    height: 100%;
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-card:hover {
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.15);
    transform: translateY(-10px) rotateX(2deg);
    border-color: rgba(197, 160, 89, 0.3);
}

.feature-card h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
    transition: color 0.3s ease;
}

.feature-card:hover h4 {
    color: var(--gold-dark);
}

.feature-card p {
    color: #666;
    line-height: 1.7;
}

/* Grid Features */
.grid-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

/* Concept Box */
.concept-box {
    background: linear-gradient(135deg, #f8f8f8, #fff);
    padding: 2.5rem;
    border-left: 4px solid var(--gold-color);
    margin-bottom: 2rem;
}

.concept-box p {
    font-size: 1.2rem;
    color: #444;
    line-height: 1.8;
    font-style: italic;
}

/* Alternate Background */
.alt-bg {
    background: var(--off-white);
}

/* Gallery Grid */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 3rem;
}

.gallery-grid img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    filter: grayscale(20%);
}

.gallery-grid img:hover {
    transform: scale(1.03);
    filter: grayscale(0%);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    z-index: 10;
    position: relative;
}

/* Footer */
footer {
    background: #000;
    color: #fff;
    padding: 4rem 0;
    text-align: center;
}

footer p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

footer .credits {
    color: var(--gold-color);
    font-size: 0.85rem;
    letter-spacing: 2px;
    text-transform: uppercase;
}

footer .credits span {
    margin: 0 0.8rem;
    opacity: 0.5;
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    color: white;
    overflow: hidden;
    background-color: #000;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100vw;
    height: 100vh;
    min-width: 177.77vh; /* 16:9 aspect ratio */
    min-height: 56.25vw; /* 16:9 aspect ratio */
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0.7;
    pointer-events: none;
    /* Darker video for better text contrast */
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.6));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: 4.5rem;
    margin-bottom: 0.5rem;
    color: #fff;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero h1 span {
    color: var(--gold-color);
}

.hero .subtitle {
    font-size: 1.4rem;
    margin-bottom: 3.5rem;
    font-weight: 300;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--gold-light);
}

.btn-scroll {
    display: inline-block;
    padding: 1.2rem 3rem;
    border: 1px solid var(--gold-color);
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    background: rgba(197, 160, 89, 0.1);
    backdrop-filter: blur(5px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.btn-scroll:hover {
    background: var(--gold-color);
    color: #000;
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

/* Scroll Progress Bar */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: var(--gold-color);
    z-index: 1000;
    transition: width 0.1s ease-out;
}

/* Vertical Labels (Architectural Aesthetic) */
.vertical-label {
    position: absolute;
    left: 1rem;
    top: 0;
    font-size: 0.7rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    transform: rotate(90deg) translate(0, -100%);
    transform-origin: top left;
    color: var(--gold-color);
    font-weight: 600;
    opacity: 0.6;
}

.content-section {
    position: relative;
    padding: 12rem 0;
}

/* Hero Enhancements */
.hero-location {
    font-size: 0.9rem;
    letter-spacing: 5px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 1rem;
}

/* Process Steps (Content Enrichment) */
.process-steps {
    margin-top: 2rem;
    border-left: 2px solid var(--gold-color);
    padding-left: 2rem;
}

.step {
    margin-bottom: 2rem;
    position: relative;
}

.step::before {
    content: '';
    position: absolute;
    left: -2.3rem;
    top: 10px;
    width: 10px;
    height: 10px;
    background: var(--gold-color);
    border-radius: 50%;
}

/* Lightbox Styling */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

.lightbox[aria-hidden="false"] {
    display: flex;
}

.lightbox-content {
    max-width: 90vw;
    max-height: 80vh;
    box-shadow: 0 0 50px rgba(197, 160, 89, 0.2);
    transform: scale(0.9);
    transition: transform 0.4s cubic-bezier(0.19, 1, 0.22, 1);
}

.lightbox[aria-hidden="false"] .lightbox-content {
    transform: scale(1);
}

.lightbox-close {
    position: absolute;
    top: 30px;
    right: 40px;
    color: #fff;
    font-size: 40px;
    font-weight: 200;
    cursor: pointer;
}

.lightbox-trigger {
    cursor: zoom-in;
}

.lightbox-caption {
    position: absolute;
    bottom: 50px;
    color: #fff;
    font-size: 1.2rem;
    font-family: var(--font-heading);
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* Feature Card Icons */
.card-icon {
    font-size: 3rem;
    color: rgba(197, 160, 89, 0.15);
    margin-bottom: 1rem;
    font-weight: 900;
    font-family: var(--font-body);
}

/* Footer Enhancements */
.footer-logo {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: #fff;
}

.footer-logo span {
    color: var(--gold-color);
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(60px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Reveal animations */
.reveal {
    opacity: 0;
    transform: translateY(60px);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-60px);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.reveal-left.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(60px);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.reveal-right.active {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.85);
    transition: all 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.reveal-scale.active {
    opacity: 1;
    transform: scale(1);
}

/* Stagger animation for grid items */
.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.19, 1, 0.22, 1);
}

.stagger-item.active {
    opacity: 1;
    transform: translateY(0);
}

.hidden {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.19, 1, 0.22, 1);
}

.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Parallax effect */
.parallax-img {
    transition: transform 0.1s ease-out;
}

/* Glow effect on hover */
.glow-hover:hover {
    box-shadow: 0 0 40px rgba(197, 160, 89, 0.3);
}

/* Text reveal animation */
.text-reveal {
    overflow: hidden;
}

.text-reveal span {
    display: inline-block;
    transform: translateY(100%);
    transition: transform 0.8s cubic-bezier(0.19, 1, 0.22, 1);
}

.text-reveal.active span {
    transform: translateY(0);
}

/* Cursor follower styles */
.cursor-follower {
    position: fixed;
    width: 40px;
    height: 40px;
    border: 2px solid var(--gold-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    transition: transform 0.15s ease-out, opacity 0.3s ease;
    opacity: 0;
    mix-blend-mode: difference;
}

.cursor-follower.active {
    opacity: 1;
}

.cursor-follower.hover {
    transform: scale(1.5);
    background: rgba(197, 160, 89, 0.1);
}

/* Enhanced scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-dark), var(--gold-color), var(--gold-light));
    z-index: 1000;
    transition: width 0.1s ease-out;
    box-shadow: 0 0 10px rgba(197, 160, 89, 0.5);
}

/* Responsive */
@media (max-width: 1024px) {
    .split-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }

    .hero h1 {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .sticky-nav ul {
        gap: 1.5rem;
    }

    .details-grid {
        grid-template-columns: 1fr;
    }
}

/* Video Control Button */
.video-control {
    position: absolute;
    bottom: 40px;
    right: 40px;
    z-index: 10;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid var(--gold-color);
    color: var(--gold-color);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.4s ease;
}

.video-control:hover {
    background: var(--gold-color);
    color: #000;
    transform: rotate(15deg) scale(1.1);
}