:root {
    /* Colors */
    --color-bg: #ffffff;
    --color-text: #1a1a1a;
    --color-text-light: #666666;
    --color-accent: #d4af37;
    /* Muted Gold */
    --color-border: #e5e5e5;

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;

    /* Layout */
    --container-width: 1400px;
    --header-height: 80px;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 300;
    line-height: 1.2;
}

img {
    max-width: 100%;
    display: block;
}

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

a:hover {
    opacity: 0.7;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    /* Added for absolute positioning of children */
}

/* Utility Classes */
.text-center {
    text-align: center;
}

.uppercase {
    text-transform: uppercase;
}

.flex {
    display: flex;
}

.grid {
    display: grid;
}

.hidden {
    display: none;
}

/* Navigation */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: background-color 0.3s ease, padding 0.3s ease;
    display: flex;
    align-items: center;
    background-color: transparent;
    /* Start transparent */
}

#main-header.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
}

#main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    position: relative;
    left: 0;
    transform: translateX(-60px);
    margin-right: 0;
}

.logo img {
    height: 40px;
    width: auto;
    filter: brightness(0) invert(1);
    /* White logo on dark hero */
    transition: filter 0.3s ease;
}

#main-header.scrolled .logo img {
    filter: brightness(0);
    /* Black logo on white header */
}

.nav-links {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
}

.nav-links a {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #ffffff;
    font-weight: 400;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 1px;
    background-color: #ffffff;
    transition: width 0.3s ease;
}

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

#main-header.scrolled .nav-links a {
    color: var(--color-text);
}

#main-header.scrolled .nav-links a::after {
    background-color: var(--color-text);
}

/* Hero Section */
#hero {
    height: 100vh;
    width: 100%;
    background-image: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('../assets/hero-bg.jpg');
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    padding-top: var(--header-height);
}

.hero-content h1 {
    font-size: clamp(3rem, 5vw, 6rem);
    font-weight: 200;
    letter-spacing: -1px;
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    animation: fadeUp 1s ease forwards 0.5s;
}

.hero-content p {
    font-size: 1.2rem;
    font-weight: 300;
    letter-spacing: 2px;
    text-transform: uppercase;
    opacity: 0;
    animation: fadeUp 1s ease forwards 0.8s;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

/* Studio Section */
#studio {
    padding: var(--spacing-xl) var(--spacing-md);
}

.studio-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.studio-title h2 {
    font-size: 2.5rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    padding-top: 20px;
}

.studio-title h2::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background-color: var(--color-accent);
}

.studio-text p {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-text-light);
    line-height: 1.8;
}

@media (max-width: 768px) {
    .studio-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

/* Services Section */
#services {
    padding: var(--spacing-xl) var(--spacing-md);
    background-color: #f9f9f9;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.services-content h2 {
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.services-content h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--color-accent);
    font-weight: 400;
}

.services-content p {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.services-list {
    list-style: none;
}

.services-list li {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
    color: var(--color-text-light);
    padding-left: 20px;
    position: relative;
}

.services-list li::before {
    content: '•';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.services-list li strong {
    color: var(--color-text);
    font-weight: 500;
}

.services-image {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.services-image img {
    width: 100%;
    height: auto;
    transition: transform 0.6s ease;
}

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

@media (max-width: 768px) {
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .services-image {
        order: -1;
        /* Show image first on mobile */
    }
}

/* Projects Section */
#projects {
    padding-bottom: var(--spacing-xl);
}

#projects h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-weight: 300;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
    cursor: pointer;
}

.project-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.project-card:hover img {
    transform: scale(1.05);
}

.project-info-card {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background-color: #1a1a1a;
    padding: 1.5rem 2rem;
    color: #ffffff;
    max-width: 80%;
    z-index: 10;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.project-card:hover .project-info-card {
    background-color: #000000;
}

.project-info-card h3 {
    color: #ffffff;
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
    font-weight: 400;
}

.project-info-card p {
    color: #cccccc;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
}

@media (max-width: 768px) {
    .project-grid {
        grid-template-columns: 1fr;
    }

    .project-info-card {
        bottom: 15px;
        left: 15px;
        padding: 1rem 1.5rem;
    }

    .project-info-card h3 {
        font-size: 1.2rem;
    }
}

/* Contact Section */
#contact {
    background-color: #f9f9f9;
    padding: var(--spacing-xl) 0;
    text-align: center;
}

#contact h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 2px;
}

#contact p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
}

.contact-btn {
    display: inline-block;
    padding: 15px 40px;
    border: 1px solid var(--color-text);
    color: var(--color-text);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.contact-btn:hover {
    background-color: var(--color-text);
    color: #ffffff;
}

/* Footer */
footer {
    background-color: #1a1a1a;
    color: #ffffff;
    padding: var(--spacing-lg) 0;
    text-align: center;
}

footer p {
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Intro Overlay */
#intro-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #ffffff;
    background-image: url('../assets/O_Noct_Aerea_03.png');
    background-size: cover;
    background-position: center;
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: transform 1s cubic-bezier(0.77, 0, 0.175, 1);
}

.intro-logo img {
    width: 300px;
    height: auto;
    opacity: 0;
    /* filter: brightness(0) invert(1); Removed as new logo is already white */
    animation: logoFadeIn 1s ease forwards 0.5s;
}

#intro-overlay.slide-up {
    transform: translateY(-100%);
}

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

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