/* 
======================================================================
CSS ARCHITECTURE: Variables & Reset
======================================================================
*/
:root {
    /* Brand Color System */
    --color-base: #F9F8F6;       /* Gallery White */
    --color-surface: #FFFFFF;    /* Pure White */
    --color-ink: #1A1A1A;        /* Charcoal Ink */
    --color-ink-light: #4A4A4A;  /* Soft Ink */
    --color-muted: #EBE7E0;      /* Muted Clay Background */
    --color-accent: #D1C8C1;     /* Warm Accent */
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Inter', sans-serif;
    
    /* Layout */
    --max-width: 1320px;
    --section-spacing: 120px;
    --container-padding: 5%;
    
    /* UI Elements */
    --radius: 0px; /* Minimalist strict corners */
    --shadow-soft: 0 10px 40px rgba(26, 26, 26, 0.04);
    --shadow-hover: 0 15px 50px rgba(26, 26, 26, 0.08);
    --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
    font-family: var(--font-body);
    color: var(--color-ink);
    background-color: var(--color-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
    object-fit: cover;
}

ul {
    list-style: none;
}

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

/* 
======================================================================
TYPOGRAPHY SYSTEM
======================================================================
*/
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 400;
    line-height: 1.1;
    color: var(--color-ink);
}

.headline {
    font-size: clamp(3rem, 6vw, 5.5rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(2.5rem, 4vw, 4rem);
    letter-spacing: -0.01em;
    margin-bottom: 1.5rem;
}

.subtext {
    font-family: var(--font-body);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-ink-light);
    margin-bottom: 1rem;
    display: block;
}

.body-large {
    font-size: clamp(1.25rem, 2vw, 1.75rem);
    font-family: var(--font-heading);
    line-height: 1.4;
    margin-bottom: 2rem;
    color: var(--color-ink);
}

.body-text {
    font-size: 1.125rem;
    color: var(--color-ink-light);
    margin-bottom: 1.5rem;
    max-width: 600px;
}

.text-center {
    text-align: center;
}

/* 
======================================================================
LAYOUT & GRIDS
======================================================================
*/
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

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

.bg-muted {
    background-color: var(--color-muted);
}

.grid-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

/* 
======================================================================
BUTTON SYSTEM
======================================================================
*/
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    border-radius: var(--radius);
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-solid {
    background-color: var(--color-ink);
    color: var(--color-surface);
}

.btn-solid:hover {
    background-color: var(--color-ink-light);
}

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

.btn-outline:hover {
    background-color: var(--color-ink);
    color: var(--color-surface);
}

.btn-ghost {
    background-color: transparent;
    color: var(--color-ink);
    padding: 1rem 1.5rem;
    position: relative;
}

.btn-ghost::after {
    content: '';
    position: absolute;
    bottom: 0.8rem;
    left: 1.5rem;
    right: 1.5rem;
    height: 1px;
    background-color: var(--color-ink);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s ease;
}

.btn-ghost:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.btn-small {
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
}

.btn-full {
    width: 100%;
}

.link-arrow {
    display: inline-block;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 1.5rem;
    position: relative;
}

.link-arrow:hover {
    padding-left: 0.5rem;
}

/* 
======================================================================
HEADER & NAVIGATION
======================================================================
*/
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    background-color: transparent;
    transition: var(--transition-smooth);
}

.site-header.scrolled {
    background-color: rgba(249, 248, 246, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    box-shadow: var(--shadow-soft);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.desktop-nav .nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-ink-light);
}

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 101;
}

.mobile-toggle .line {
    display: block;
    width: 100%;
    height: 1px;
    background-color: var(--color-ink);
    position: absolute;
    transition: var(--transition-smooth);
}

.mobile-toggle .line:first-child { top: 0; }
.mobile-toggle .line:last-child { bottom: 0; }

/* 
======================================================================
HERO SECTION
======================================================================
*/
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 50%;
    height: 100%;
    background-color: var(--color-muted);
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-cta {
    margin-top: 3rem;
    display: flex;
    gap: 1rem;
}

.hero-image-wrapper {
    position: relative;
    height: 70vh;
    width: 100%;
    overflow: hidden;
}

.hero-image {
    width: 100%;
    height: 100%;
    object-position: center;
}

/* 
======================================================================
ABOUT SECTION
======================================================================
*/
.editorial-img {
    width: 100%;
    aspect-ratio: 4/5;
    box-shadow: var(--shadow-soft);
}

.value-props {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.prop {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-accent);
    padding-bottom: 1rem;
}

.prop-num {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: var(--color-ink-light);
}

.prop-text {
    font-family: var(--font-heading);
    font-size: 1.25rem;
}

/* 
======================================================================
EXHIBITIONS SECTION
======================================================================
*/
.exhibition-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-top: 4rem;
}

.exhibition-card {
    background: var(--color-surface);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.exhibition-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-5px);
}

.card-image {
    position: relative;
    aspect-ratio: 3/4;
    overflow: hidden;
    margin-bottom: 2rem;
}

.card-image img {
    width: 100%;
    height: 100%;
    transition: transform 1.5s ease;
}

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

.card-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--color-surface);
    color: var(--color-ink);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--color-surface);
    color: var(--color-surface);
}

.card-meta {
    font-size: 0.875rem;
    color: var(--color-ink-light);
    margin-bottom: 1rem;
}

/* 
======================================================================
TESTIMONIALS
======================================================================
*/
.testimonials {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.testimonial-quote {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    line-height: 1.3;
    margin-bottom: 2rem;
}

.testimonial-author strong {
    display: block;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--color-ink-light);
}

/* 
======================================================================
JOURNAL SECTION
======================================================================
*/
.journal-list {
    margin-top: 4rem;
    border-top: 1px solid var(--color-accent);
}

.journal-item {
    display: grid;
    grid-template-columns: 200px 1fr 300px;
    gap: 3rem;
    align-items: center;
    padding: 3rem 0;
    border-bottom: 1px solid var(--color-accent);
}

.journal-item:hover .journal-item-title {
    color: var(--color-ink-light);
}

.journal-item-meta {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--color-ink-light);
}

.journal-item-title {
    font-size: 2rem;
    transition: color 0.3s ease;
}

.journal-item-img {
    aspect-ratio: 16/9;
    overflow: hidden;
}

.journal-item-img img {
    width: 100%;
    height: 100%;
    filter: grayscale(20%);
    transition: transform 1s ease;
}

.journal-item:hover .journal-item-img img {
    transform: scale(1.05);
    filter: grayscale(0%);
}

/* 
======================================================================
FAQ SECTION
======================================================================
*/
.faq-accordion {
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid var(--color-accent);
}

.faq-item summary {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    padding: 1.5rem 0;
    cursor: pointer;
    list-style: none;
    position: relative;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: 0;
    font-family: var(--font-body);
    font-weight: 300;
}

.faq-item[open] summary::after {
    content: '-';
}

.faq-content {
    padding-bottom: 1.5rem;
    color: var(--color-ink-light);
    line-height: 1.8;
}

/* 
======================================================================
CONTACT FORM
======================================================================
*/
.contact-details {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.detail-block h4 {
    font-family: var(--font-body);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.detail-block p {
    color: var(--color-ink-light);
}

.contact-form {
    background: var(--color-surface);
    padding: 4rem 3rem;
    box-shadow: var(--shadow-soft);
}

.input-group {
    position: relative;
    margin-bottom: 2.5rem;
}

.input-group input,
.input-group select,
.input-group textarea {
    width: 100%;
    padding: 1rem 0;
    border: none;
    border-bottom: 1px solid var(--color-accent);
    background: transparent;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-ink);
    outline: none;
    transition: border-color 0.3s ease;
}

.input-group textarea {
    resize: vertical;
}

.input-group label {
    position: absolute;
    top: 1rem;
    left: 0;
    font-size: 1rem;
    color: var(--color-ink-light);
    pointer-events: none;
    transition: all 0.3s ease;
}

.input-group input:focus,
.input-group textarea:focus,
.input-group input:not(:placeholder-shown),
.input-group textarea:not(:placeholder-shown) {
    border-bottom-color: var(--color-ink);
}

.input-group input:focus + label,
.input-group textarea:focus + label,
.input-group input:not(:placeholder-shown) + label,
.input-group textarea:not(:placeholder-shown) + label {
    top: -1rem;
    font-size: 0.75rem;
    color: var(--color-ink);
}

/* 
======================================================================
FOOTER
======================================================================
*/
.site-footer {
    background-color: var(--color-ink);
    color: var(--color-surface);
    padding: 6rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 6rem;
}

.footer-brand h3 {
    color: var(--color-surface);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #999;
}

.footer-links h4 {
    color: var(--color-surface);
    font-family: var(--font-body);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}

.footer-links ul li {
    margin-bottom: 0.75rem;
}

.footer-links a, .footer-social a {
    color: #999;
    font-size: 0.875rem;
}

.footer-links a:hover, .footer-social a:hover {
    color: var(--color-surface);
}

.footer-social ul li {
    margin-bottom: 0.75rem;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    font-size: 0.75rem;
    color: #666;
}

.legal-links a {
    margin-left: 2rem;
    color: #666;
}

.legal-links a:hover {
    color: var(--color-surface);
}