:root {
    --color-black: #0c0c0c;
    --color-white: #f4f4f0;
    --color-gray: #888888;
    --color-border: #d0d0d0;
    
    --font-heading: 'Helvetica Neue', Helvetica, Arial, sans-serif; /* Bold, standard editorial */
    --font-body: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    
    --transition-smooth: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--color-white);
    color: var(--color-black);
    font-family: var(--font-body);
    line-height: 1.4;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
    overflow-x: hidden;
}

/* Theme Switching */
body.theme-dark {
    background-color: var(--color-black);
    color: var(--color-white);
    --color-border: #333333;
}
body.theme-dark .site-header { mix-blend-mode: difference; color: #fff; }
body.theme-dark .brand-mark { filter: invert(1); }
body.theme-dark .brand-text { color: #fff; }
body.theme-dark .btn-outline { border-color: var(--color-white); color: var(--color-white); }
body.theme-dark .btn-outline:hover { background: var(--color-white); color: var(--color-black); }

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

.container { max-width: 1400px; margin: 0 auto; padding: 0 4%; }
.section-padding { padding: clamp(4rem, 10vw, 8rem) 0; }
.page-top { padding-top: clamp(120px, 15vh, 180px); }
.mt-medium { margin-top: 2rem; }
.mt-large { margin-top: 5rem; }
.mb-large { margin-bottom: 5rem; }
.pt-medium { padding-top: 2rem; }
.border-top { border-top: 1px solid var(--color-border); }
.border-bottom { border-bottom: 1px solid var(--color-border); }

/* Typography */
h1, h2, h3 { font-family: var(--font-heading); font-weight: 700; letter-spacing: -0.03em; text-transform: uppercase; }
.huge-text { font-size: clamp(4rem, 10vw, 10rem); line-height: 0.9; }
.large-body { font-size: clamp(1.2rem, 2vw, 1.8rem); font-weight: 400; color: var(--color-gray); }
.section-label { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--color-gray); font-weight: bold; }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 1rem 2rem;
    background: var(--color-black);
    color: var(--color-white);
    border-radius: 50px;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    transition: transform 0.2s ease;
}
.btn-icon { width: 16px; margin-left: 10px; filter: invert(1); }
.btn-outline {
    background: transparent;
    color: var(--color-black);
    border: 1px solid var(--color-black);
}
.btn-outline:hover { background: var(--color-black); color: var(--color-white); }

body.theme-dark .btn { background: var(--color-white); color: var(--color-black); }
body.theme-dark .btn-icon { filter: invert(0); }

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 2rem 0;
    transition: transform 0.3s ease;
    mix-blend-mode: difference;
    color: white; /* Forced white for difference mode to work against white bg (makes it black) */
}
.header-inner { display: flex; justify-content: space-between; align-items: center; }
.brand-lockup { display:flex; align-items:center; gap:0.7rem; }
.brand-mark { width:32px; height:32px; }
.brand-text { font-size: 0.82rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; line-height: 1; }
.main-nav { display: flex; gap: 2rem; }
.main-nav a { font-size: 0.85rem; font-weight: bold; text-transform: uppercase; }
.main-nav a:hover, .main-nav a.active { text-decoration: underline; }

/* Animations - Grid Stagger */
.stagger-item {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.stagger-item.is-visible { opacity: 1; transform: translateY(0); }

/* Animations - Text Mask Reveal */
.mask-reveal { overflow: hidden; display: block; }
.mask-reveal span { display: block; transform: translateY(110%); padding-bottom: 0.1em;
    transition: transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}
.mask-reveal.is-visible span { transform: translateY(0); }

/* Animations - Spin Icon */
.spin-icon { width: 30px; animation: spin 10s linear infinite; }
@keyframes spin { 100% { transform: rotate(360deg); } }

/* Hero */
.hero { display: flex; flex-direction: column; gap: 4rem; padding-top: 150px; }
.hero-sub { max-width: 500px; margin-left: auto; margin-right: 10%; margin-top: -2rem; display: flex; flex-direction: column; gap: 2rem; align-items: flex-start; }
.hero-sub p { font-size: 1.2rem; font-weight: 500; }
.hero-visual { width: 100%; height: 60vh; overflow: hidden; }
.hero-visual img { width: 100%; height: 120%; object-fit: cover; object-position: center; }

/* Client Logo Wall */
.logo-wall { display: flex; justify-content: space-between; flex-wrap: wrap; margin-top: 2rem; gap: 2rem; }
.logo-wall h3 { font-size: clamp(1.5rem, 3vw, 2.5rem); color: var(--color-gray); }

/* Horizontal Scroll Work Band */
.horizontal-scroll-container { overflow-x: auto; padding-bottom: 2rem; scrollbar-width: none; }
.horizontal-scroll-container::-webkit-scrollbar { display: none; }
.horizontal-scroll-track { display: flex; gap: 4rem; width: max-content; padding: 0 4%; }
.work-card { display: block; width: 600px; }
.work-img { width: 100%; height: 400px; overflow: hidden; margin-bottom: 1.5rem; }
.work-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.work-card:hover .work-img img { transform: scale(1.05); }
.work-meta h3 { font-size: 1.5rem; margin-bottom: 0.2rem; }
.work-meta p { color: var(--color-gray); text-transform: uppercase; font-size: 0.8rem; letter-spacing: 0.05em; font-weight: bold;}

/* Work Page Grid */
.work-grid { display: flex; flex-direction: column; gap: 6rem; }
.work-list-item { display: block; width: 100%; }
.work-list-img { width: 100%; height: 60vh; overflow: hidden; margin-bottom: 1.5rem; }
.work-list-img img { width: 100%; height: 100%; object-fit: cover; filter: grayscale(100%); transition: filter 0.5s ease, transform 0.8s ease; }
.work-list-item:hover .work-list-img img { filter: grayscale(0%); transform: scale(1.02); }
.work-list-meta { display: flex; justify-content: space-between; align-items: baseline; border-bottom: 1px solid var(--color-border); padding-bottom: 1rem; }

/* Services Breakdown */
.services-breakdown { display: flex; flex-direction: column; }
.service-row { display: grid; grid-template-columns: 1fr 1fr; padding: 4rem 0; gap: 4rem; }
.service-title { display: flex; justify-content: space-between; align-items: flex-start; }
.service-title h2 { font-size: clamp(2rem, 5vw, 4rem); }
.service-desc p { font-size: 1.2rem; margin-bottom: 2rem; }
.tag-list { list-style: none; display: flex; gap: 1rem; flex-wrap: wrap; }
.tag-list li { border: 1px solid var(--color-border); padding: 0.5rem 1rem; border-radius: 30px; font-size: 0.8rem; text-transform: uppercase; font-weight: bold; }

/* Process Steps */
.process-steps { display: flex; flex-direction: column; gap: 4rem; }
.step-card { display: grid; grid-template-columns: auto 1fr; gap: 4rem; padding: 4rem; background: var(--color-black); color: var(--color-white); border-radius: 20px; transition: background 0.3s; }
body.theme-dark .step-card { background: var(--color-white); color: var(--color-black); }
.step-num { font-size: 2rem; font-weight: bold; font-family: var(--font-heading); color: var(--color-gray); }
.step-content h2 { font-size: 3rem; margin-bottom: 1rem; }
.step-content p { font-size: 1.2rem; max-width: 600px; }

/* About Studio */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-image img { height: 600px; width: 100%; object-fit: cover; }
.values-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; border-top: 1px solid var(--color-border); padding-top: 3rem; }
.value-item h3 { font-size: 1.5rem; margin-bottom: 1rem; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 4rem; }
.direct-email { font-size: clamp(1.5rem, 3vw, 2.5rem); font-weight: bold; display: inline-block; margin-top: 0.5rem; border-bottom: 2px solid currentColor; }
.minimal-form .form-group { margin-bottom: 2rem; }
.minimal-form input, .minimal-form textarea { width: 100%; background: transparent; border: none; border-bottom: 1px solid var(--color-border); padding: 1rem 0; font-size: 1.2rem; font-family: inherit; color: inherit; transition: border-color 0.3s; }
.minimal-form input:focus, .minimal-form textarea:focus { outline: none; border-color: currentColor; }

/* Footer */
.site-footer { padding: 6rem 0 2rem; background: var(--color-black); color: var(--color-white); }
body.theme-dark .site-footer { background: var(--color-white); color: var(--color-black); }
.footer-grid { display: flex; flex-direction: column; gap: 4rem; }
.footer-huge-text h2 { font-size: clamp(3rem, 8vw, 8rem); line-height: 1; }
.huge-link { font-size: clamp(1.5rem, 4vw, 3rem); font-family: var(--font-heading); font-weight: bold; text-decoration: underline; display: inline-block; margin-top: 1rem; }
.footer-meta { display: flex; gap: 2rem; align-items: center; color: var(--color-gray); font-size: 0.9rem; font-weight: bold; text-transform: uppercase; }
.footer-logo { height: 20px; filter: invert(1); }
body.theme-dark .footer-logo { filter: invert(0); }

/* Responsive */
@media (max-width: 900px) {
    .service-row, .about-grid, .contact-grid, .step-card { grid-template-columns: 1fr; gap: 2rem; }
    .about-image { order: -1; }
    .hero-sub { margin-right: 0; }
    .values-list { grid-template-columns: 1fr; }
    .work-list-meta { flex-direction: column; gap: 0.5rem; }
    .brand-text { display: none; }
}
@media (max-width: 600px) {
    .main-nav { display: flex; overflow-x: auto; max-width: 100%; white-space: nowrap; padding-bottom: 10px; gap: 1rem; scrollbar-width: none; } .main-nav::-webkit-scrollbar { display: none; }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; }
    .stagger-item, .mask-reveal span { opacity: 1; transform: none; }
    .parallax-el { transform: none !important; }
}

/* --- layout fix pack (2026-03-17) --- */
.hero-content, .featured-work, .clients, .about-content, .about-text, .values, .contact-info, .contact-form-wrap, .contact-hero { width:100%; }
.theme-light { background-color: var(--color-white); color: var(--color-black); }
.theme-dark-trigger, .theme-light-trigger, .magnetic-btn { cursor:pointer; }