/* =====================================================
   (r) EMI / Place - Token-Gated Pixel Canvas
   Clean, minimal, production-ready styles
   ===================================================== */

/* CSS Custom Properties */
:root {
  /* Color System - Warm earthy palette with digital accent */
  --color-bg: #0d0c0f;
  --color-bg-elevated: #1a181d;
  --color-bg-hover: #252329;
  --color-surface: #1e1c21;
  --color-border: #2d2a33;
  --color-border-light: #3d3944;
  
  --color-text-primary: #f4f0e8;
  --color-text-secondary: #a09b93;
  --color-text-muted: #6b6761;
  
  --color-accent: #e85a4f;
  --color-accent-hover: #d94a3f;
  --color-accent-glow: rgba(232, 90, 79, 0.3);
  
  --color-success: #4ecdc4;
  --color-warning: #f7b731;
  --color-error: #e85a4f;
  --color-info: #5c7aea;
  
  /* Palette Colors */
  --palette-red: #ff0000;
  --palette-blue: #0000ff;
  --palette-yellow: #ffff00;
  --palette-black: #000000;
  --palette-white: #ffffff;
  
  /* Typography */
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 20px var(--color-accent-glow);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms ease;
}

/* Import Google Fonts - Bauhaus-inspired typography */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Bebas+Neue&family=Oswald:wght@500;700&display=swap');

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

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

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background Pattern */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(232, 90, 79, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(92, 122, 234, 0.05) 0%, transparent 50%),
    linear-gradient(135deg, var(--color-bg) 0%, #12101a 100%);
  pointer-events: none;
  z-index: -1;
}

/* Utility Classes */
.hidden { display: none !important; }

/* App Container */
#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* =====================================================
   HEADER - Bauhaus Style
   ===================================================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-md) var(--space-xl);
  background: var(--color-bg-elevated);
  border-bottom: 4px solid var(--palette-black);
  position: sticky;
  top: 0;
  z-index: 100;
  position: relative;
  overflow: hidden;
}

/* Bauhaus geometric accents */
.header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 8px;
  background: linear-gradient(
    to bottom,
    var(--palette-red) 0%,
    var(--palette-red) 33.33%,
    var(--palette-yellow) 33.33%,
    var(--palette-yellow) 66.66%,
    var(--palette-blue) 66.66%,
    var(--palette-blue) 100%
  );
}


/* Bauhaus Logo Section */
.logo-section {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-left: var(--space-md);
}

.logo.bauhaus {
  font-family: 'Bebas Neue', 'Oswald', sans-serif;
  font-size: 2.5rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  display: flex;
  align-items: baseline;
  gap: 0;
  text-transform: uppercase;
  line-height: 1;
}

.logo-paren {
  color: var(--color-text-muted);
  font-weight: 400;
}

.logo-r {
  color: var(--palette-red);
  font-style: italic;
  text-transform: lowercase;
}

.logo-emi {
  color: var(--palette-yellow);
  letter-spacing: 0.05em;
}

.logo-slash {
  color: var(--color-text-muted);
  margin: 0 2px;
}

.logo-place {
  color: var(--palette-blue);
}

/* Pixel Counter - Bauhaus style */
.pixel-counter {
  display: flex;
  align-items: center;
  font-family: 'Bebas Neue', 'Oswald', sans-serif;
  font-size: 1.75rem;
  background: var(--color-surface);
  border: 3px solid var(--color-border);
  padding: var(--space-xs) var(--space-md);
  position: relative;
}

.pixel-counter::before {
  content: '';
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--palette-red);
}

.pixel-counter::after {
  content: '';
  position: absolute;
  right: -8px;
  top: 50%;
  transform: translateY(-50%);
  width: 12px;
  height: 12px;
  background: var(--palette-blue);
  border-radius: 50%;
}

#pixel-count {
  color: var(--palette-yellow);
  min-width: 3ch;
  text-align: right;
}

.counter-sep {
  color: var(--color-text-muted);
  margin: 0 2px;
}

#pixel-total {
  color: var(--color-text-secondary);
  min-width: 3ch;
}

/* Mondrian Bar - Simple colored blocks */
.mondrian-bar {
  display: flex;
  gap: 3px;
  background: #000;
  padding: 3px;
  height: 36px;
}

.mondrian-bar > div {
  height: 100%;
}

.mondrian-bar .m-red { background: #ff0000; width: 40px; }
.mondrian-bar .m-white { background: #ffffff; width: 30px; }
.mondrian-bar .m-blue { background: #0000ff; width: 60px; }
.mondrian-bar .m-yellow { background: #ffff00; width: 50px; }

@media (max-width: 900px) {
  .mondrian-bar {
    display: none;
  }
}

.wallet-section {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Network Badge */
.network-badge {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.network-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

.network-badge.error::before {
  background: var(--color-error);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* Wallet Status */
.wallet-status {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  position: relative;
}

.wallet-status.connected {
  color: var(--color-success);
}

.wallet-status.connected #status-text {
  cursor: pointer;
}

.wallet-status .address {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background: var(--color-surface);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.wallet-status.connected .address:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-light);
}

.wallet-status .address::after {
  content: ' ▾';
  font-size: 0.7em;
  opacity: 0.6;
}

/* Wallet Dropdown */
.wallet-dropdown {
  position: absolute;
  top: calc(100% + var(--space-xs));
  right: 0;
  min-width: 150px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  overflow: hidden;
  animation: dropdownFadeIn 0.15s ease;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.wallet-dropdown-item {
  display: block;
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  background: transparent;
  border: none;
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  text-align: left;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.wallet-dropdown-item:hover {
  background: var(--color-bg-hover);
  color: var(--color-error);
}

/* Buttons */
.btn {
  font-family: 'Bebas Neue', 'Oswald', sans-serif;
  font-size: 0.95rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-lg);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.4s ease;
}

.btn:hover::before {
  left: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: var(--shadow-sm);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border: 2px solid var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-hover);
  border-color: var(--color-text-secondary);
}

.btn-small {
  padding: var(--space-xs) var(--space-sm);
  font-size: 0.75rem;
}

.btn-danger {
  background: transparent;
  color: var(--color-error);
  border: 2px solid var(--color-error);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-error);
  color: white;
}

/* =====================================================
   AUTHORIZATION BANNER
   ===================================================== */
.auth-banner {
  padding: var(--space-sm) var(--space-xl);
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}

.auth-banner.authorized {
  background: linear-gradient(90deg, rgba(78, 205, 196, 0.15) 0%, rgba(78, 205, 196, 0.05) 100%);
  color: var(--color-success);
  border-bottom: 2px solid rgba(78, 205, 196, 0.3);
}

.auth-banner.view-only {
  background: linear-gradient(90deg, rgba(247, 183, 49, 0.15) 0%, rgba(247, 183, 49, 0.05) 100%);
  color: var(--color-warning);
  border-bottom: 2px solid rgba(247, 183, 49, 0.3);
}

/* =====================================================
   MODAL
   ===================================================== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(4px);
}

.modal-content {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.modal-content h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-warning);
}

.modal-content p {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.network-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.network-option-btn {
  width: 100%;
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.network-option-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-accent);
}

/* Wallet Selection Modal */
.wallet-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  max-height: 400px;
  overflow-y: auto;
  padding: var(--space-sm);
}

@media (max-width: 480px) {
  .wallet-options {
    grid-template-columns: 1fr;
  }
}

.wallet-option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  width: 100%;
  padding: var(--space-lg) var(--space-md);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  min-height: 100px;
}

.wallet-option-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(232, 90, 79, 0.15);
}

.wallet-option-btn:active {
  transform: translateY(0);
}

.wallet-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  object-fit: contain;
  background: var(--color-bg-elevated);
  padding: 4px;
}

/* Style the wallet modal specifically */
#wallet-modal .modal-content {
  max-width: 420px;
}

#wallet-modal .modal-content h2 {
  text-align: center;
  margin-bottom: var(--space-sm);
}

#wallet-modal .modal-content p {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.main-content {
  flex: 1;
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-md);
  max-width: 100%;
  margin: 0;
  width: 100%;
}

/* Canvas Container */
.canvas-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-elevated) 100%);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 0 0 var(--space-lg) var(--space-lg);
  min-height: 500px;
}

/* Bauhaus corner accents */
.canvas-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--palette-red) 50%, transparent 50%);
  border-top-left-radius: var(--radius-lg);
}

.canvas-container::after {
  content: '';
  position: absolute;
  bottom: 0;
  right: 0;
  width: 40px;
  height: 40px;
  background: linear-gradient(-45deg, var(--palette-blue) 50%, transparent 50%);
  border-bottom-right-radius: var(--radius-lg);
}

#pixel-canvas {
  /* Crisp pixel rendering */
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: var(--palette-white);
  border: 4px solid var(--palette-black);
  box-shadow: 
    var(--shadow-lg), 
    0 0 0 1px var(--color-border),
    0 0 60px rgba(0, 0, 0, 0.3);
  cursor: crosshair;
  max-width: 100%;
  max-height: 80vh;
  z-index: 1;
  /* Touch action for smooth drawing on mobile */
  touch-action: none;
}

.canvas-overlay {
  position: absolute;
  top: var(--space-xl);
  left: var(--space-xl);
  background: var(--palette-yellow);
  color: #1a1a1a;
  padding: var(--space-xs) var(--space-md);
  border-radius: 0;
  font-family: 'Bebas Neue', 'Oswald', sans-serif;
  font-size: 0.85rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  z-index: 10;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.3);
  pointer-events: none; /* Allow canvas interaction underneath */
}

/* =====================================================
   CONTROLS PANEL
   ===================================================== */
.controls-panel {
  width: 220px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.controls-panel section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  transition: all var(--transition-fast);
}

.controls-panel section:hover {
  border-color: var(--color-border-light);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.controls-panel h3 {
  font-family: 'Bebas Neue', 'Oswald', sans-serif;
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-bottom: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
}

/* Palette */
.palette-section {
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-elevated) 100%) !important;
  border: 1px solid var(--color-border) !important;
  padding: var(--space-md) !important;
}

.palette-section h3 {
  display: none;
}

.palette {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
}

.palette-btn {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border: 2px solid rgba(255,255,255,0.12);
  border-radius: 50%;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
  box-shadow: 
    0 2px 6px rgba(0,0,0,0.25),
    inset 0 1px 0 rgba(255,255,255,0.15);
}

.palette-btn::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  right: 2px;
  bottom: 2px;
  border-radius: 50%;
  background: inherit;
  box-shadow: inset 0 -2px 3px rgba(0,0,0,0.15);
}

.palette-btn:hover {
  transform: scale(1.18);
  z-index: 1;
  box-shadow: 
    0 4px 14px rgba(0,0,0,0.35),
    inset 0 1px 0 rgba(255,255,255,0.25);
  border-color: rgba(255,255,255,0.25);
}

.palette-btn.selected {
  border-color: var(--color-text-primary);
  box-shadow: 
    0 0 0 2px var(--color-bg), 
    0 0 0 4px var(--color-accent),
    0 4px 16px rgba(232, 90, 79, 0.35);
  transform: scale(1.18);
  z-index: 2;
}

/* Admin Eraser Section */
.eraser-section {
  border: 2px solid var(--color-error) !important;
  background: linear-gradient(135deg, var(--color-surface) 0%, rgba(232, 90, 79, 0.1) 100%) !important;
}

.eraser-section h3 {
  color: var(--color-error);
}

.eraser-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-bg-elevated);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.eraser-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-error);
}

.eraser-btn.active {
  background: var(--color-error);
  border-color: var(--color-error);
  color: white;
  box-shadow: 0 0 12px var(--color-accent-glow);
}

.eraser-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.eraser-btn.active .eraser-icon {
  animation: pulse 1s infinite;
}

.eraser-hint {
  margin-top: var(--space-sm);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* Status Row Container */
.status-row {
  display: flex;
  gap: var(--space-xs);
}

/* Coordinates Display */
.coords-display {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.coords-label {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
}

.coords-value {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--palette-yellow);
  background: var(--color-bg);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  min-width: 55px;
  text-align: center;
}

/* Connection Status Indicator */
.connection-status {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-text-muted);
  transition: background var(--transition-fast), box-shadow var(--transition-fast);
  flex-shrink: 0;
}

.status-dot.connected {
  background: var(--color-success);
  box-shadow: 0 0 6px var(--color-success);
  animation: pulse-connected 2s infinite;
}

.status-dot.disconnected {
  background: var(--color-error);
}

.status-dot.connecting {
  background: var(--color-warning);
  animation: pulse-connecting 1s infinite;
}

.status-dot.error {
  background: var(--color-error);
  animation: pulse-error 0.5s infinite;
}

.connection-status .status-text {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
}

@keyframes pulse-connected {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

@keyframes pulse-connecting {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

@keyframes pulse-error {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* Canvas Full Status */
.canvas-full-status {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: var(--space-xs) var(--space-sm);
  background: linear-gradient(135deg, var(--color-warning) 0%, #e67e22 100%);
  border-radius: var(--radius-md);
  color: #1a1a1a;
  font-weight: 600;
  animation: pulse-full 2s infinite;
}

.canvas-full-status.hidden {
  display: none;
}

.full-icon {
  font-size: 0.9rem;
}

.full-text {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
}

@keyframes pulse-full {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.02); }
}

/* Countdown Timer */
.countdown-timer {
  padding: var(--space-xs) var(--space-sm);
  background: rgba(247, 183, 49, 0.1);
  border: 1px solid var(--color-warning);
  border-radius: var(--radius-md);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-warning);
  text-align: center;
}

.countdown-timer.hidden {
  display: none;
}

/* Clear Notification */
.clear-notification {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(135deg, var(--color-success), #27ae60);
  color: white;
  font-weight: 600;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  z-index: 9999;
  transition: transform 0.3s ease;
}

.clear-notification.visible {
  transform: translateX(-50%) translateY(0);
}

.clear-icon {
  font-size: 1.5rem;
}


/* =====================================================
   FOOTER
   ===================================================== */
.footer {
  padding: var(--space-md) var(--space-xl);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  border-top: 4px solid var(--palette-black);
  background: var(--color-bg-elevated);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: var(--palette-yellow);
}

.footer .credits {
  margin-top: var(--space-xs);
  font-size: 0.65rem;
  opacity: 0.7;
}

/* =====================================================
   RESPONSIVE DESIGN
   ===================================================== */
@media (max-width: 900px) {
  .main-content {
    flex-direction: column;
  }
  
  .controls-panel {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .controls-panel section {
    flex: 1;
    min-width: 200px;
  }
}

@media (max-width: 600px) {
  .header {
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-md);
  }
  
  .wallet-section {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .main-content {
    padding: var(--space-md);
  }
  
  .canvas-container {
    padding: 0 0 var(--space-md) var(--space-md);
  }
  
  .controls-panel section {
    min-width: 100%;
  }
  
  .palette-btn {
    width: 40px;
    height: 40px;
  }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-10px); }
  to { opacity: 1; transform: translateY(0); }
}

.auth-banner:not(.hidden) {
  animation: fadeIn var(--transition-normal);
}

/* Loading State */
.btn.loading {
  position: relative;
  color: transparent;
}

.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  top: 50%;
  left: 50%;
  margin-left: -8px;
  margin-top: -8px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Touch-friendly adjustments */
@media (hover: none) {
  .palette-btn:hover {
    transform: none;
  }
  
  .palette-btn.selected {
    transform: none;
  }
  
  .btn:hover {
    transform: none;
  }
}