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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    background-color: var(--color-bg);
    color: var(--color-text);
    overflow-x: hidden;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    position: relative;
    width: 100%;
    min-height: 100vh;
}

body::after {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: var(--noise-url);
    opacity: 0.4;
    pointer-events: none;
    z-index: 9999;
}

a {
    color: inherit;
    text-decoration: none;
}

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

/* Layout Utilities */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--gap-xl) 0;
}

/* Typography Utilities */
.text-uppercase {
    text-transform: uppercase;
}

.font-primary {
    font-family: var(--font-primary);
}

.text-cyan {
    color: var(--color-accent-cyan);
}

.text-red {
    color: var(--color-accent-red);
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 2.5rem;
    background: var(--color-text);
    color: var(--color-bg);
    font-family: var(--font-secondary);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 100px;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

/* Homepage Utilities */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.hero-title {
    font-size: clamp(4rem, 15vw, 15rem);
    line-height: 0.8;
    font-weight: 900;
    font-family: var(--font-primary);
    text-transform: uppercase;
    mix-blend-mode: overlay;
    opacity: 0.9;
}

.hero-subtitle {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 2rem;
    text-align: center;
    max-width: 800px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.service-card {
    background: var(--color-bg);
    padding: var(--gap-lg) var(--gap-md);
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: background 0.3s;
}

.service-card:hover {
    background: var(--color-surface);
}

.marquee-container {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--gap-md) 0;
    overflow: hidden;
    background: var(--color-bg);
}

.marquee-content {
    display: flex;
    gap: var(--gap-xl);
    width: max-content;
    animation: scrollLeft 30s linear infinite;
}

.client-logo {
    height: 40px;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.client-logo:hover {
    opacity: 1;
}

/* Case Study Utilities */
.case-hero {
    height: 90vh;
    position: relative;
    display: flex;
    align-items: flex-end;
    padding-bottom: 4rem;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
}

.stat-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.stat-value {
    font-family: var(--font-primary);
    font-size: 1.5rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin-top: 2rem;
}

.feature-list li {
    border-bottom: 1px solid #333;
    padding: 1rem 0;
    display: flex;
    justify-content: space-between;
    color: var(--color-text-muted);
}

.feature-list li span:first-child {
    color: white;
    font-weight: 500;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin: 4rem 0;
}

.grid-card {
    background: #111;
    border-radius: 4px;
    overflow: hidden;
}

.card-img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    filter: grayscale(20%);
    transition: filter 0.3s;
}

.grid-card:hover .card-img {
    filter: grayscale(0%);
}

.card-meta {
    padding: 1.5rem;
}

/* Advanced Grids */
.masonry-grid {
    columns: 2;
    column-gap: 1rem;
    margin: 4rem 0;
}

.masonry-item {
    break-inside: avoid;
    margin-bottom: 1rem;
    border-radius: 4px;
    width: 100%;
}

.swiss-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
    margin: 4rem 0;
}

.full-img {
    width: 100%;
    border-radius: 4px;
}

/* Projects Page Utilities */
.page-header {
    padding: 15rem 0 5rem;
    position: relative;
}

.filter-bar {
    display: flex;
    gap: 2rem;
    margin-bottom: 4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
    overflow-x: auto;
    /* Allow scroll on mobile */
    white-space: nowrap;
}

.filter-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-family: var(--font-primary);
    text-transform: uppercase;
    font-size: 1rem;
    cursor: pointer;
    transition: color 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--color-text);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem 2rem;
}

.project-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

.project-image {
    aspect-ratio: 16/9;
    width: 100%;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    filter: grayscale(100%);
}

.project-card:hover .project-image {
    transform: scale(1.02);
    filter: grayscale(0%);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

/* Services Page Utilities */
.service-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    margin-bottom: 8rem;
}

.service-card {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
}

.service-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.service-list {
    list-style: none;
    padding: 0;
    margin: 2rem 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.service-list li {
    color: var(--color-text-muted);
    border-bottom: 1px solid #222;
    padding-bottom: 0.5rem;
}

/* Contact Page Utilities */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
}

.contact-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.contact-value {
    font-family: var(--font-primary);
    font-size: 2rem;
    margin-bottom: 2rem;
    display: block;
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-value:hover {
    color: var(--color-accent-cyan);
}

form input,
form textarea {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid #333;
    padding: 1rem 0;
    font-family: var(--font-primary);
    font-size: 1.5rem;
    color: white;
    margin-bottom: 2rem;
    transition: border-color 0.3s;
}

form input:focus,
form textarea:focus {
    outline: none;
    border-bottom-color: var(--color-accent-cyan);
    /* Note: var(--color-primary) isn't defined in variables.css? Check this. */
}

form textarea {
    resize: vertical;
    min-height: 100px;
}

/* Responsive Utilities */
.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.grid-2-1-col {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.grid-1-2-col {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
}

@media (max-width: 900px) {
    html {
        font-size: 14px;
    }

    .container {
        padding: 0 1.5rem;
    }

    /* Grid Collapsing */
    .grid-2-col,
    .grid-2-1-col,
    .grid-1-2-col,
    .content-grid,
    .swiss-grid,
    .contact-grid,
    .services-grid,
    .projects-grid,
    .service-grid {
        grid-template-columns: 1fr !important;
        /* Override explicit styles if needed */
        gap: 2rem;
    }

    .case-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem 1rem;
    }

    .masonry-grid {
        columns: 1;
    }

    /* Typography Adjustments */
    .case-hero h1,
    h1.text-uppercase {
        font-size: 4rem !important;
        /* Clamp for mobile */
    }

    h2.text-uppercase {
        font-size: 2.5rem !important;
    }

    .case-hero {
        height: auto;
        min-height: 80vh;
        padding-bottom: 2rem;
    }

    /* Navigation */
    header {
        padding: 1.5rem !important;
    }

    nav {
        display: none !important;
        /* Simple hide for now, or hamburger? User didn't ask for hamburger logic yet, keeping it simple or maybe just wrapping? */
        /* Let's try to keep it visible but smaller or verify link count */
    }

    /* Re-thinking nav: 4 links is okay for mobile if small. */
    nav {
        display: flex !important;
        gap: 1rem !important;
    }

    nav a {
        font-size: 0.7rem !important;
    }
}