:root {
    /* Color Direction */
    --color-bg: #F9F9F8;
    /* Off-white / warm white */
    --color-text: #1A1A1A;
    /* Deep charcoal */
    --color-text-light: #555555;
    --color-accent: #A8A39D;
    /* Muted stone grey */
    --color-accent-dark: #8C8782;
    --color-white: #FFFFFF;
    --color-border: #E5E5E5;

    /* Typography */
    --font-primary: 'Inter', sans-serif;

    /* Spacing System */
    --space-xs: 0.5rem;
    /* 8px */
    --space-sm: 1rem;
    /* 16px */
    --space-md: 2rem;
    /* 32px */
    --space-lg: 4rem;
    /* 64px */
    --space-xl: 8rem;
    /* 128px */
    --space-xxl: 12rem;
    /* 192px */

    /* Layout */
    --container-width: 1400px;
    --header-height: 90px;

    /* Transitions */
    --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.3s ease;
}

/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-weight: 300;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 400;
    /* Confident, unforced */
    line-height: 1.2;
    letter-spacing: -0.02em;
}

p {
    color: var(--color-text-light);
}

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

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

ul {
    list-style: none;
}

button {
    font-family: inherit;
    background: none;
    border: none;
    cursor: pointer;
}

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

/* Navigation */
.site-header {
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(249, 249, 248, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition-slow);
}

.site-header.scrolled {
    border-color: var(--color-border);
}

.nav-container {
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.02em;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    gap: var(--space-md);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: var(--color-text);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--transition-fast);
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

/* Footer */
.site-footer {
    padding: var(--space-xl) 0 var(--space-md);
    background-color: var(--color-bg);
    border-top: 1px solid var(--color-border);
    margin-top: var(--space-xl);
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: var(--space-lg);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--space-sm);
    display: block;
}

.footer-desc {
    font-size: 0.9rem;
}

.footer-links-group h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
    color: var(--color-text);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-links a {
    font-size: 0.95rem;
    color: var(--color-text-light);
}

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

.footer-bottom {
    margin-top: var(--space-lg);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    font-size: 0.9rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-text);
}

/* Utility Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    color: var(--color-white);
}

.hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
}

.hero-image.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(26, 26, 26, 0.2), rgba(26, 26, 26, 0.6));
}

.hero-content {
    max-width: 800px;
    margin-top: calc(var(--header-height) * -1);
    /* visual centering */
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 400;
    margin-bottom: var(--space-sm);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2vw, 1.5rem);
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--space-md);
    font-weight: 300;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.hero-trust-signals {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xs);
}

.trust-signal {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.03em;
}

/* Explanation Section */
.explanation {
    padding: var(--space-xxl) 0;
    max-width: 900px;
    text-align: center;
}

.explanation-text {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
    color: var(--color-text);
    line-height: 1.5;
    font-weight: 300;
}

/* Directory Section */
.studios-directory {
    padding: var(--space-xl) 0;
}

/* Filters */
.filters {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    flex: 1;
    min-width: 200px;
}

.filter-group label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

.filter-group select {
    font-family: inherit;
    font-size: 1rem;
    padding: 0.75rem 0;
    border: none;
    border-bottom: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    cursor: pointer;
    outline: none;
    appearance: none;
    border-radius: 0;
}

.filter-group select:focus {
    border-bottom-color: var(--color-text);
}

/* Studio Grid */
.studio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: var(--space-lg) var(--space-md);
}

.studio-card {
    display: flex;
    flex-direction: column;
}

.studio-image-wrapper {
    aspect-ratio: 4/5;
    overflow: hidden;
    margin-bottom: var(--space-sm);
    background-color: #EFEFEF;
}

.studio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.studio-card:hover .studio-image {
    transform: scale(1.03);
}

.studio-name {
    font-size: 1.25rem;
    font-weight: 400;
    margin-bottom: 0.25rem;
}

.studio-descriptor {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: var(--space-sm);
}

.studio-link {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.studio-card:hover .studio-link {
    opacity: 1;
    transform: translateY(0);
}

/* Insights Section */
.insights-section {
    padding: var(--space-xxl) 0;
    border-top: 1px solid var(--color-border);
}

.insights-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: var(--space-xl);
}

.section-title {
    font-size: clamp(2rem, 3vw, 2.5rem);
    font-weight: 300;
}

.view-all-link {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
    color: var(--color-text);
    white-space: nowrap;
}

.view-all-link:hover {
    color: var(--color-accent);
}

.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.insight-card {
    display: flex;
    flex-direction: column;
}

.insight-image-wrapper {
    aspect-ratio: 16/10;
    overflow: hidden;
    margin-bottom: var(--space-md);
    background: var(--color-border);
}

.insight-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.insight-card:hover .insight-image {
    transform: scale(1.03);
}

.insight-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.insight-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
}

.insight-title {
    font-size: 1.4rem;
    line-height: 1.3;
    margin-bottom: 0.5rem;
}

.insight-excerpt {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Studio Profile Page */
.studio-hero {
    position: relative;
    height: 100vh;
    min-height: 800px;
    display: flex;
    align-items: flex-end;
    color: var(--color-white);
    padding-bottom: var(--space-xl);
    margin-top: calc(var(--header-height) * -1);
    /* Under header */
}

.studio-hero-image-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.studio-hero-image-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0) 0%, rgba(26, 26, 26, 0.8) 100%);
}

.studio-hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.studio-profile-name {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 300;
    margin-bottom: 0.5rem;
    line-height: 1.1;
}

.studio-profile-descriptor {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* About & Stats */
.studio-about-section {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--space-xl);
    padding: var(--space-xxl) 0;
    border-bottom: 1px solid var(--color-border);
}

.studio-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-light);
}

.studio-about-text h2 {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.studio-about-text p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text);
}

/* Portfolio Gallery */
.studio-portfolio {
    padding: var(--space-xxl) 0;
}

.studio-portfolio .section-title {
    margin-bottom: var(--space-xl);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.portfolio-item {
    aspect-ratio: 4/3;
    overflow: hidden;
    background: var(--color-border);
    position: relative;
    cursor: pointer;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow), filter 0.4s ease;
}

.portfolio-item:hover img {
    transform: scale(1.03);
    filter: brightness(0.5);
}

.portfolio-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--space-lg) var(--space-md) var(--space-md);
    transform: translateY(100%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
    pointer-events: none;
}

.portfolio-item:hover .portfolio-item-overlay {
    transform: translateY(0);
}

.portfolio-project-name {
    color: #fff;
    font-size: 1.25rem;
    font-weight: 400;
    margin: 0;
    letter-spacing: 0.02em;
}

/* Inquiry Form */
.studio-inquiry {
    padding: var(--space-xxl) 0;
    max-width: 800px;
    margin: 0 auto;
}

.inquiry-wrapper {
    background: #FFF;
    padding: var(--space-xl);
    border: 1px solid var(--color-border);
}

.inquiry-header {
    margin-bottom: var(--space-xl);
    text-align: center;
}

.inquiry-header h2 {
    font-size: 2rem;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

.inquiry-header p {
    color: var(--color-text-light);
}

.inquiry-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: inherit;
    font-size: 1rem;
    padding: 1rem;
    border: 1px solid var(--color-border);
    background: transparent;
    color: var(--color-text);
    outline: none;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-text);
}

.submit-btn {
    margin-top: var(--space-md);
    width: 100%;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
    backdrop-filter: blur(4px);
}

.modal.visible {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--color-bg);
    width: 90%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    border-radius: 8px;
    position: relative;
    transform: translateY(20px) scale(0.95);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.modal.visible .modal-content {
    transform: translateY(0) scale(1);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--color-text-light);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text);
}

/* Modal Scrollbar */
.modal-content::-webkit-scrollbar {
    width: 8px;
}
.modal-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 0 8px 8px 0;
}
.modal-content::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
}
.modal-content::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* Responsive - Tablet */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }

    .studio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }

    .studio-about-section {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .footer-grid {
        gap: var(--space-md);
    }
}

/* Responsive - Mobile */
@media (max-width: 768px) {
    :root {
        --space-lg: 4rem;
        --space-xl: 6rem;
        --space-xxl: 8rem;
        --header-height: 70px;
    }

    .container {
        padding: 0 1.25rem;
    }

    .nav-links {
        display: none;
        /* simple mobile nav approach for later if needed */
    }

    .explanation {
        padding: 5rem 0;
        margin: 3rem 0;
    }

    .studios-directory {
        padding-bottom: 5rem;
    }

    .insights-section {
        padding-top: 7rem;
    }

    .hero-title,
    .studio-profile-name {
        font-size: 2.5rem;
    }

    .explanation-text {
        font-size: 1.1rem;
    }

    .filters {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .filter-group {
        min-width: 100%;
    }

    .studio-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg) 0;
    }

    .insights-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg) 0;
    }

    .studio-stats {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-md);
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: var(--space-sm);
    }

    .inquiry-wrapper {
        padding: var(--space-md);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        flex-direction: column;
        gap: var(--space-lg);
    }
}