/* --- CSS Variables / Design Tokens --- */
:root {
  --bg-primary: #fcfcfb;
  --bg-secondary: #f4f3ef;
  --bg-card: #ffffff;
  --text-primary: #171717;
  --text-secondary: #585754;
  --text-muted: #8c8a85;
  --border-light: #e6e4de;
  --border-medium: #d4d1c8;
  --accent-color: #2b2b2b;
  --accent-hover: #000000;

  --font-serif: 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --header-height: 80px;
  --container-max: 1360px;
  --container-pad: clamp(1.25rem, 4vw, 3.5rem);

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-medium: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Prevent scroll when mobile menu or lightbox is open */
body.menu-open,
body.lightbox-open {
  overflow: hidden;
}

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

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

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

/* --- Top Menu Bar (Header) --- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(252, 252, 251, 0.94);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  z-index: 1000;
  transition: background-color var(--transition-fast);
}

.header-container {
  max-width: var(--container-max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo on Left */
.header-left {
  display: flex;
  align-items: center;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: opacity var(--transition-fast);
}

.site-logo:hover {
  opacity: 0.8;
}

.logo-image {
  height: 38px;
  width: auto;
}

/* Navigation on Right */
.primary-nav {
  display: flex;
  align-items: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 3vw, 2.75rem);
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 0.5rem 0.2rem;
  position: relative;
  transition: color var(--transition-fast);
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1.5px;
  background-color: var(--text-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-medium);
}

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

.nav-link.is-active {
  color: var(--text-primary);
  font-weight: 600;
}

/* Mobile Navigation Hamburger Toggle */
.mobile-nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  z-index: 1001;
  background: transparent;
  border-radius: 4px;
}

.nav-icon-bar {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-medium), opacity var(--transition-fast);
}

/* Main Site Content Area */
.site-main {
  flex: 1;
  padding: clamp(2rem, 5vw, 4.5rem) 0 clamp(4rem, 6vw, 6rem);
}

/* --- Split Page Layout (About & Contact Pages) --- */
.split-page-layout {
  width: 100%;
}

.split-page-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: grid;
  grid-template-columns: minmax(320px, 1.1fr) minmax(360px, 1.3fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

/* Left Column: Picture */
.split-col-media {
  position: relative;
}

.media-frame {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  background-color: var(--bg-secondary);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.05);
}

.split-feature-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.media-frame:hover .split-feature-image {
  transform: scale(1.015);
}

.media-caption {
  font-size: 0.8125rem;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-align: right;
  margin-top: 0.65rem;
  font-style: italic;
}

/* Right Column: Blurb */
.split-col-content {
  display: flex;
  flex-direction: column;
}

.split-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-light);
}

.split-page-title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

/* Prose Typography */
.split-prose {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.split-prose p {
  margin-bottom: 1.5rem;
}

.split-prose h2 {
  font-family: var(--font-serif);
  font-size: 1.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 1rem;
  letter-spacing: -0.01em;
}

.split-prose h3 {
  font-family: var(--font-serif);
  font-size: 1.45rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 2rem 0 0.85rem;
}

.split-prose ul {
  list-style: none;
  margin: 1.25rem 0 2rem;
  padding-left: 0;
}

.split-prose ul li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.75rem;
}

.split-prose ul li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--text-muted);
}

.split-prose a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 500;
}

.split-prose a:hover {
  opacity: 0.7;
}

.split-prose blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--text-primary);
  border-left: 2px solid var(--text-primary);
  padding-left: 1.5rem;
  margin: 2rem 0;
}

/* Contact Form Styling */
.contact-form {
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  text-transform: uppercase;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  background-color: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
  border-radius: 3px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: flex-start;
  padding: 0.95rem 2.25rem;
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background-color: var(--text-primary);
  color: #ffffff;
  border: 1px solid var(--text-primary);
  border-radius: 3px;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-submit:hover {
  background-color: #333333;
  transform: translateY(-1px);
}

/* --- Work Page Layout (Gallery) --- */
.work-page-layout {
  width: 100%;
}

.work-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.work-header {
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
  text-align: left;
}

.work-page-title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 4.5vw, 3.5rem);
  font-weight: 500;
  line-height: 1.15;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.work-description {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  letter-spacing: 0.02em;
}

/* Flexible Grid of Images */
.artwork-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: clamp(2rem, 3.5vw, 3.5rem) clamp(1.5rem, 2.5vw, 2.75rem);
  width: 100%;
  align-items: start;
}

.artwork-card {
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast);
}

.artwork-card-button {
  width: 100%;
  display: block;
  padding: 0;
  background: transparent;
  border: none;
  cursor: pointer;
  text-align: left;
}

.artwork-thumb-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 3px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-light);
  transition: box-shadow var(--transition-medium), border-color var(--transition-medium);
}

.artwork-card:hover .artwork-thumb-container {
  border-color: var(--border-medium);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.07);
}

.artwork-thumb {
  width: 100%;
  height: auto;
  display: block;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.artwork-card:hover .artwork-thumb {
  transform: scale(1.035);
}

/* Subtle Hover Zoom Overlay Hint */
.artwork-thumb-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(18, 18, 18, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  transition: opacity var(--transition-medium);
}

.artwork-card:hover .artwork-thumb-overlay {
  opacity: 1;
}

.artwork-expand-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.95);
  color: #111111;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transform: scale(0.85);
  transition: transform var(--transition-fast);
}

.artwork-card:hover .artwork-expand-icon {
  transform: scale(1);
}

/* Exactly 3 Lines of Information Below Each Artwork */
.artwork-info-3lines {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

/* Line 1: Title */
.artwork-info-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
  letter-spacing: -0.01em;
}

/* Line 2: Date */
.artwork-info-date {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.4;
  letter-spacing: 0.02em;
}

/* Line 3: Size */
.artwork-info-size {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.4;
  letter-spacing: 0.01em;
}

/* ==========================================================================
   Artwork Lightbox Modal
   "When an image is clicked on, it should enlarge and float above the page
    with a close box in the corner."
   ========================================================================== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.lightbox.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* Floating dark backdrop */
.lightbox-overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(10, 10, 12, 0.93);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  cursor: zoom-out;
}

/* Lightbox floating dialog container */
.lightbox-container {
  position: relative;
  z-index: 1;
  max-width: 92vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  outline: none;
  transform: scale(0.96);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.lightbox.is-visible .lightbox-container {
  transform: scale(1);
}

/* Prominent Close Box in the Corner */
.lightbox-close-btn {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  z-index: 100;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.lightbox-close-btn:hover,
.lightbox-close-btn:focus-visible {
  background-color: rgba(255, 255, 255, 0.25);
  transform: scale(1.08);
  outline: 2px solid #ffffff;
}

/* Lightbox Navigation Arrows */
.lightbox-arrow {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 99;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.lightbox-arrow:hover,
.lightbox-arrow:focus-visible {
  background-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-50%) scale(1.08);
  outline: 2px solid #ffffff;
}

.lightbox-arrow-prev {
  left: 1.5rem;
}

.lightbox-arrow-next {
  right: 1.5rem;
}

/* Enlarged image */
.lightbox-media-wrapper {
  max-width: 88vw;
  max-height: 74vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.lightbox-image {
  max-width: 100%;
  max-height: 74vh;
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

/* Caption and 3 lines in lightbox below image */
.lightbox-details {
  margin-top: 1.25rem;
  text-align: center;
  color: #ffffff;
  max-width: 700px;
  padding: 0 1rem;
}

.lightbox-title {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: #ffffff;
  letter-spacing: 0.01em;
}

.lightbox-date {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: #b0afab;
  margin-top: 0.2rem;
}

.lightbox-size {
  font-family: var(--font-sans);
  font-size: 0.8125rem;
  color: #d1cfc9;
  margin-top: 0.15rem;
  letter-spacing: 0.02em;
}

/* --- Footer --- */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-light);
  background-color: var(--bg-primary);
  padding: 2.25rem 0;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-link:hover {
  color: var(--text-primary);
}

.back-to-top {
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-medium);
}

/* ==========================================================================
   Responsive Breakpoints
   "The web site should size dynamically to the size of the browser and
    work well on a phone sized screen as well a desktop browser."
   ========================================================================== */

/* Tablets and small laptops (under 960px) */
@media screen and (max-width: 960px) {
  .split-page-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .split-col-media {
    max-width: 600px;
  }

  .artwork-grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2.25rem 1.75rem;
  }
}

/* Mobile Devices & Phones (under 768px) */
@media screen and (max-width: 768px) {
  :root {
    --header-height: 70px;
  }

  /* Hamburger menu activation */
  .mobile-nav-toggle {
    display: flex;
  }

  .primary-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background-color: rgba(252, 252, 251, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-light);
    padding: 2rem var(--container-pad);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition-medium), opacity var(--transition-fast), visibility var(--transition-fast);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
  }

  .primary-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-menu {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    width: 100%;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid var(--border-light);
    padding-bottom: 1rem;
  }

  .nav-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .nav-link {
    font-size: 1.15rem;
    display: block;
    width: 100%;
  }

  /* Hamburger transform into 'X' when open */
  .mobile-nav-toggle.is-active .nav-icon-bar:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
  }
  .mobile-nav-toggle.is-active .nav-icon-bar:nth-child(2) {
    opacity: 0;
  }
  .mobile-nav-toggle.is-active .nav-icon-bar:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
  }

  /* Artwork Grid on Mobile */
  .artwork-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  /* Lightbox on Mobile */
  .lightbox-arrow {
    display: none; /* Swipe or tap on mobile, or smaller button */
  }

  .lightbox-close-btn {
    top: 1rem;
    right: 1rem;
    width: 42px;
    height: 42px;
    font-size: 1.75rem;
  }

  .lightbox-media-wrapper {
    max-width: 95vw;
    max-height: 65vh;
  }

  .lightbox-image {
    max-height: 65vh;
  }

  .footer-container {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* Very small phones (under 400px) */
@media screen and (max-width: 400px) {
  :root {
    --container-pad: 1rem;
  }

  .logo-image {
    height: 32px;
  }
}

/* --- Single Artwork View (Fallback & Direct Link) --- */
.single-artwork-layout {
  width: 100%;
}

.single-artwork-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.artwork-back-nav {
  margin-bottom: 2rem;
}

.artwork-back-link {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.artwork-back-link:hover {
  color: var(--text-primary);
}

.single-artwork-display {
  display: grid;
  grid-template-columns: minmax(320px, 1.2fr) minmax(280px, 1fr);
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}

.single-artwork-media {
  background-color: var(--bg-secondary);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.single-artwork-img {
  width: 100%;
  height: auto;
  display: block;
}

.single-artwork-details {
  display: flex;
  flex-direction: column;
}

.artwork-detail-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 500;
  color: var(--text-primary);
  line-height: 1.2;
}

.artwork-detail-date {
  font-size: 1rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

.artwork-detail-size {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.artwork-detail-description {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-light);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.artwork-detail-actions {
  margin-top: 2.5rem;
}

.btn-inquire {
  display: inline-flex;
  align-items: center;
  padding: 0.9rem 2rem;
  background-color: var(--text-primary);
  color: #ffffff;
  border-radius: 3px;
  font-size: 0.9375rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-inquire:hover {
  background-color: #333333;
  transform: translateY(-1px);
}

@media screen and (max-width: 850px) {
  .single-artwork-display {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}