/* ==========================================================================
   TABLE OF CONTENTS:
   1. Design Tokens & CSS Variables
   2. Base & CSS Reset
   3. Typography & Hierarchy
   4. Buttons & Interactive Elements
   5. Header & Navigation Layout
   6. Fullscreen Hero Section
   7. About Section & Experience Badge
   8. Gallery & Masonry System
   9. Exhibitions Timeline & Awards
   10. Commission Form & Contact Layouts
   11. Modals & Lightbox Components
   12. Toast & Footer
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. DESIGN TOKENS & CSS VARIABLES
   -------------------------------------------------------------------------- */
:root {
  /* Brand Palette */
  --color-bg-primary: #121212;
  --color-bg-secondary: #191817;
  --color-bg-elevated: #22201e;
  --color-text-main: #f4f1ea;
  --color-text-muted: #a39f97;
  --color-text-dim: #6e6b65;

  /* Accent Colors */
  --color-accent-gold: #c5a059;
  --color-accent-gold-hover: #dfb76c;
  --color-accent-gold-soft: rgba(197, 160, 89, 0.15);
  
  /* Borders & Glassmorphism */
  --border-subtle: rgba(244, 241, 234, 0.08);
  --border-gold: rgba(197, 160, 89, 0.3);
  --glass-bg: rgba(25, 24, 23, 0.75);
  --glass-blur: blur(16px);
  --shadow-luxury: 0 20px 50px rgba(0, 0, 0, 0.5);

  /* Fonts */
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Transitions & Radii */
  --transition-smooth: cubic-bezier(0.25, 1, 0.5, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --max-width: 1280px;
}

/* --------------------------------------------------------------------------
   2. BASE & CSS RESET
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-bg-primary);
  color: var(--color-text-main);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--color-bg-primary);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--transition-smooth);
}

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  background: none;
  border: none;
  color: inherit;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 4px;
}

.skip-to-content {
  position: absolute;
  top: -100px;
  left: 20px;
  background: var(--color-accent-gold);
  color: #000;
  padding: 12px 24px;
  font-weight: 600;
  z-index: 9999;
  transition: top 0.3s;
}

.skip-to-content:focus {
  top: 20px;
}

/* Utility Layout Containers */
.container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-padding {
  padding: 100px 0;
}

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

.grid-2-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

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

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

/* Glass Panel Styling */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   3. TYPOGRAPHY & HIERARCHY
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
}

.section-subtitle {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 12px;
  font-weight: 600;
}

.section-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto 40px auto;
}

/* --------------------------------------------------------------------------
   4. BUTTONS & INTERACTIVE ELEMENTS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.35s var(--transition-smooth);
}

.btn-primary-gold {
  background-color: var(--color-accent-gold);
  color: #0d0d0d;
}

.btn-primary-gold:hover {
  background-color: var(--color-accent-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(197, 160, 89, 0.25);
}

.btn-outline-gold {
  border: 1px solid var(--border-gold);
  color: var(--color-text-main);
}

.btn-outline-gold:hover {
  border-color: var(--color-accent-gold);
  background-color: var(--color-accent-gold-soft);
  color: var(--color-accent-gold-hover);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--color-text-main);
  backdrop-filter: blur(8px);
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-block {
  width: 100%;
}

/* --------------------------------------------------------------------------
   5. HEADER & NAVIGATION LAYOUT
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 24px 0;
  transition: all 0.4s var(--transition-smooth);
}

.site-header.scrolled {
  padding: 14px 0;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-subtle);
}

.header-container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  flex-direction: column;
}

.logo-text {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  letter-spacing: 3px;
  font-weight: 500;
}

.logo-subtext {
  font-size: 0.65rem;
  letter-spacing: 2px;
  color: var(--color-text-muted);
}

.desktop-nav .nav-list {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  position: relative;
  padding: 4px 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 1px;
  background-color: var(--color-accent-gold);
  transition: width 0.3s var(--transition-smooth);
}

.nav-link:hover, .nav-link.active {
  color: var(--color-text-main);
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 8px;
}

.hamburger-bar {
  width: 26px;
  height: 2px;
  background-color: var(--color-text-main);
  transition: transform 0.3s, opacity 0.3s;
}

/* Mobile Drawer Overlay */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 400px;
  height: 100vh;
  background: var(--color-bg-secondary);
  border-left: 1px solid var(--border-subtle);
  z-index: 1001;
  padding: 100px 40px 40px 40px;
  transition: right 0.4s var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.mobile-menu.active {
  right: 0;
}

.mobile-nav-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav-link {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  color: var(--color-text-main);
}

/* --------------------------------------------------------------------------
   6. FULLSCREEN HERO SECTION
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 14px 0 60px 0;
  overflow: hidden;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 70% 30%, rgba(197, 160, 89, 0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-container {
  width: 90%;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  z-index: 2;
}

.eyebrow-tag {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 4px;
  color: var(--color-accent-gold);
  margin-bottom: 16px;
}

.hero-title {
  font-size: clamp(2.8rem, 5vw, 4.8rem);
  line-height: 1.08;
  margin-bottom: 24px;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  gap: 20px;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-luxury);
}

.hero-image-frame img {
  width: 100%;
  height: 600px;
  object-fit: cover;
  transition: transform 0.8s var(--transition-smooth);
}

.hero-image-frame:hover img {
  transform: scale(1.03);
}

.artwork-badge {
  position: absolute;
  bottom: 24px;
  left: 24px;
  right: 24px;
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  padding: 16px 20px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
}

.badge-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.badge-meta {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.scroll-down-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-dim);
  font-size: 0.7rem;
  letter-spacing: 2px;
}

.scroll-line {
  width: 1px;
  height: 30px;
  background: linear-gradient(to bottom, var(--color-accent-gold), transparent);
}

/* --------------------------------------------------------------------------
   7. ABOUT SECTION & EXPERIENCE BADGE
   -------------------------------------------------------------------------- */
.image-stack {
  position: relative;
}

.primary-artist-img {
  width: 100%;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-luxury);
}

.experience-card {
  position: absolute;
  bottom: -30px;
  right: -30px;
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  color: var(--color-accent-gold);
  line-height: 1;
}

.stat-label {
  font-size: 0.75rem;
  letter-spacing: 1px;
  color: var(--color-text-muted);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin: 36px 0;
  padding: 24px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.stat-item-val {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--color-text-main);
  display: block;
}

.stat-item-lbl {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
}

.artist-signature-block {
  margin-top: 24px;
}

.signature-text {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-style: italic;
  color: var(--color-accent-gold);
}

/* --------------------------------------------------------------------------
   8. GALLERY & MASONRY SYSTEM
   -------------------------------------------------------------------------- */
.gallery-filter-bar {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 20px;
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--color-text-muted);
  border-radius: 30px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s;
}

.filter-btn.active, .filter-btn:hover {
  color: var(--color-accent-gold);
  border-color: var(--border-gold);
  background-color: var(--color-accent-gold-soft);
}

.gallery-masonry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background-color: var(--color-bg-elevated);
  cursor: pointer;
}

.gallery-card img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

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

.gallery-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 70%);
  opacity: 0;
  padding: 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: opacity 0.4s var(--transition-smooth);
}

.gallery-card:hover .gallery-card-overlay {
  opacity: 1;
}

.card-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-text-main);
}

.card-meta {
  font-size: 0.8rem;
  color: var(--color-accent-gold);
  margin-bottom: 8px;
}

.card-specs {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   9. EXHIBITIONS TIMELINE & AWARDS
   -------------------------------------------------------------------------- */
.timeline-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 30px;
}

.timeline-item {
  padding-left: 20px;
  border-left: 2px solid var(--border-gold);
}

.timeline-year {
  font-size: 0.8rem;
  color: var(--color-accent-gold);
  font-weight: 600;
}

.timeline-title {
  font-family: var(--font-serif);
  font-size: 1.3rem;
}

.timeline-venue {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 30px;
}

.award-item {
  padding: 20px;
  border-radius: var(--radius-sm);
}

.award-title {
  font-family: var(--font-serif);
  font-size: 1.2rem;
}

.award-org {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   10. COMMISSION FORM & CONTACT LAYOUTS
   -------------------------------------------------------------------------- */
.commission-card {
  padding: 60px;
}

.commission-perks {
  margin: 24px 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.check-icon {
  color: var(--color-accent-gold);
  font-weight: bold;
}

.whatsapp-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #25d366;
  font-weight: 500;
  margin-left: 8px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

input, select, textarea {
  width: 100%;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--color-text-main);
  transition: border-color 0.3s;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--color-accent-gold);
  background: rgba(255, 255, 255, 0.05);
}

select option {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-main);
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-top: 36px;
}

.detail-label {
  display: block;
  font-size: 0.7rem;
  letter-spacing: 2px;
  color: var(--color-accent-gold);
}

.detail-value {
  font-size: 1.1rem;
}

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

/* --------------------------------------------------------------------------
   11. MODALS & LIGHTBOX COMPONENTS
   -------------------------------------------------------------------------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--transition-smooth);
}

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

.modal-card {
  width: 90%;
  max-width: 1000px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  padding: 40px;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 2rem;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1;
}

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

.modal-body-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.modal-image-col img {
  width: 100%;
  max-height: 550px;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.modal-category-tag {
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-gold);
}

.modal-title {
  font-size: 2.2rem;
  margin: 6px 0 12px 0;
}

.modal-price {
  font-size: 1.4rem;
  color: var(--color-text-main);
  font-family: var(--font-serif);
}

.modal-spec-list {
  margin: 20px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  padding: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
}

.spec-label {
  color: var(--color-text-muted);
}

.modal-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

.modal-cta-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* --------------------------------------------------------------------------
   12. TOAST & FOOTER
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  background: var(--color-bg-elevated);
  border-left: 4px solid var(--color-accent-gold);
  color: var(--color-text-main);
  padding: 16px 24px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-luxury);
  animation: toastIn 0.3s var(--transition-smooth) forwards;
}

@keyframes toastIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--border-subtle);
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s;
  z-index: 900;
}

.back-to-top.visible {
  opacity: 1;
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--color-accent-gold);
  color: #000;
}

/* Footer Styling */
.site-footer {
  background-color: var(--color-bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 40px 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  letter-spacing: 2px;

}

.footer-tagline {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin-top: 8px;
}

.footer-col-title {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent-gold);
  margin-bottom: 20px;
}

.footer-nav-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.footer-social-links {
  display: flex;
  gap: 16px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 30px;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--color-text-dim);
}

.footer-legal {
  display: flex;
  gap: 20px;
}