/* 
   Lumière Creative Studio - Professional CSS Stylesheet
   Design Style: Cinematic, Minimalist, Premium
*/

:root {
    /* Color Palette */
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1a1;
    --accent-color: #ffffff;
    --border-color: rgba(255, 255, 255, 0.15);
    --glass-bg: rgba(255, 255, 255, 0.05);
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Playfair Display', 'Cormorant Garamond', serif;
    
    /* Spacing */
    --section-padding: 120px;
    --container-max: 1440px;
    --transition-smooth: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

/* 1. Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

html {
    scroll-behavior: smooth;
    background-color: var(--bg-primary);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul {
    list-style: none;
}

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

section {
    padding: var(--section-padding) 5%;
    position: relative;
}

/* 2. Typography Utility */
.h1, .h2, .h3 {
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.02em;
    line-height: 0.9;
}

.serif-italic {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
    text-transform: lowercase;
}

/* 3. Navigation Bar */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 30px 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: 20px 5%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: 0.2rem;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.1rem;
    color: var(--text-secondary);
}

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

/* 4. Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-pill {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.btn-pill:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255,255,255,0.1);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-ghost:hover {
    background: var(--text-primary);
    color: var(--bg-primary);
}

/* 5. Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: linear-gradient(rgba(0,0,0,0.4), rgba(0,0,0,0.4)), url('hero-bg.jpg');
    background-size: cover;
    background-position: center;
}

.hero-title {
    font-size: clamp(3rem, 10vw, 8rem);
    margin-bottom: 40px;
}

.hero-title span {
    display: block;
}

.view-showreel {
    width: 120px;
    height: 120px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    letter-spacing: 0.1rem;
    position: relative;
    overflow: hidden;
}

/* 6. Logo Marquee */
.marquee {
    padding: 60px 0;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
}

.marquee-content {
    display: flex;
    animation: scroll 30s linear infinite;
}

.marquee-item {
    padding: 0 60px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-secondary);
    opacity: 0.5;
    filter: grayscale(1);
    white-space: nowrap;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* 7. Asymmetric Work Grid */
.work-grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.work-item {
    position: relative;
    overflow: hidden;
    grid-column: span 6;
}

.work-item.wide { grid-column: span 8; }
.work-item.small { grid-column: span 4; }

.work-img-wrapper {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.work-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.work-item:hover .work-img-wrapper img {
    transform: scale(1.05);
}

.work-category {
    position: absolute;
    top: 20px;
    left: 20px;
    padding: 6px 14px;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(5px);
    border-radius: 20px;
    font-size: 0.65rem;
    letter-spacing: 0.1rem;
}

/* 8. Service Cards (Grid) */
.services-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid var(--border-color);
    border-left: 1px solid var(--border-color);
}

.service-card {
    padding: 40px;
    border-right: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-smooth);
}

.service-card:hover {
    background: var(--glass-bg);
}

/* 9. Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.testimonial-card {
    padding: 30px;
    border: 1px solid var(--border-color);
}

.testimonial-text {
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-secondary);
}

.author-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: #333;
}

/* 10. Footer */
.footer {
    padding: 150px 5% 50px;
    background-color: var(--bg-secondary);
}

.footer-cta {
    font-size: clamp(3rem, 12vw, 10rem);
    font-weight: 800;
    line-height: 0.9;
    margin-bottom: 100px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 40px;
}

.footer-main {
    display: flex;
    justify-content: space-between;
    margin-bottom: 100px;
}

.footer-watermark {
    position: absolute;
    bottom: 0;
    right: 0;
    font-size: 20vw;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.02);
    pointer-events: none;
    line-height: 0.7;
}

/* 11. Utility Classes */
.text-grey { color: var(--text-secondary); }
.mt-20 { margin-top: 20px; }
.mb-60 { margin-bottom: 60px; }
.flex-between { display: flex; justify-content: space-between; align-items: flex-start; }

/* 12. Responsive Media Queries */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }
    
    .work-item, .work-item.wide, .work-item.small {
        grid-column: span 6;
    }
    
    .services-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }
    
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Usually replaced by a burger menu */
    }
    
    .work-item, .work-item.wide, .work-item.small {
        grid-column: span 12;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        flex-direction: column;
        gap: 50px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
}

/* Animation on scroll trigger classes (To be used with JS) */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

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