* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #0f0f23;
  --surface: #1a1a2e;
  --accent: #ec4899;
  --text: #e2e8f0;
  --border: rgba(255,255,255,0.1);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}

.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-back {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.btn-back:hover {
  background: rgba(236, 72, 153, 0.1);
  border-color: var(--accent);
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem;
}

.upload-zone {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  margin-bottom: 2rem;
}

.upload-zone:hover, .upload-zone.dragover {
  border-color: var(--accent);
  background: rgba(236, 72, 153, 0.05);
}

.upload-zone.has-image {
  border-style: solid;
  border-color: var(--accent);
}

.upload-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

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

@media (max-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

.preview-panel {
  background: var(--surface);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border);
}

.preview-canvas-wrap {
  background: repeating-conic-gradient(#808080 0% 25%, transparent 0% 50%) 50% / 20px 20px;
  border-radius: 8px;
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 400px;
  position: relative;
}

#preview-canvas {
  max-width: 100%;
  max-height: 500px;
  image-rendering: pixelated;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.effects-panel {
  background: var(--surface);
  border-radius: 12px;
  padding: 1.5rem;
  border: 1px solid var(--border);
  max-height: 80vh;
  overflow-y: auto;
}

.effect-group {
  margin-bottom: 2rem;
}

.effect-group h3 {
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.effect-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  width: 100%;
  text-align: left;
  font-size: 0.95rem;
  transition: all 0.2s;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.effect-btn:hover {
  background: rgba(236, 72, 153, 0.1);
  border-color: var(--accent);
  transform: translateX(4px);
}

.effect-btn.active {
  background: var(--accent);
  border-color: var(--accent);
}

.effect-icon {
  font-size: 1.2rem;
}

.controls {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

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

.control-group label {
  font-size: 0.85rem;
  opacity: 0.8;
  display: flex;
  justify-content: space-between;
}

.control-group input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.1);
  outline: none;
  -webkit-appearance: none;
}

.control-group input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.control-group input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: 2px solid white;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.btn-primary {
  background: linear-gradient(135deg, #ec4899, #8b5cf6);
  color: white;
  border: none;
  padding: 1rem 2rem;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
  width: 100%;
  margin-top: 1rem;
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(236, 72, 153, 0.4);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.animation-controls {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
}

.animation-controls button {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 1.2rem;
}

.animation-controls button:hover {
  background: rgba(236, 72, 153, 0.1);
  border-color: var(--accent);
}

.animation-controls button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.info-badge {
  background: rgba(236, 72, 153, 0.1);
  border: 1px solid var(--accent);
  color: var(--accent);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  text-align: center;
  margin-top: 1rem;
}

#file-input {
  display: none;
}

.progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.1);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 1rem;
  display: none;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #ec4899, #8b5cf6);
  width: 0%;
  transition: width 0.3s;
}

/* Scrollbar personalizado */
.effects-panel::-webkit-scrollbar {
  width: 8px;
}

.effects-panel::-webkit-scrollbar-track {
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
}

.effects-panel::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 4px;
}

@media (max-width: 480px) {
  .header h1 {
    font-size: 1.2rem;
  }
  
  .preview-canvas-wrap {
    min-height: 300px;
    padding: 1rem;
  }
  
  .effect-btn {
    font-size: 0.9rem;
    padding: 0.6rem 0.8rem;
  }
}


/* ═══════════════════════════════════════════════════════════════ */
/* GLASS SHATTER VIEW */
/* ═══════════════════════════════════════════════════════════════ */

.glass-shatter-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* LEFT SECTION: Preview */
.glass-preview-section {
  display: flex;
  flex-direction: column;
}

.glass-preview-section h2 {
  margin: 0 0 1rem 0;
  font-size: 1.25rem;
}

.glass-preview-wrap {
  background: repeating-conic-gradient(#8884 0 25%, #0000 0 50%) 0 0/16px 16px;
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  justify-content: center;
  align-items: center;
  flex: 1;
  min-height: 400px;
}

#glass-canvas {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

/* RIGHT SECTION: Controls */
.glass-controls-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

#glass-upload-zone {
  background: var(--card-bg);
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

#glass-upload-zone:hover {
  border-color: var(--primary);
  background: var(--hover-bg);
}

#glass-upload-zone .upload-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

#glass-file-input {
  display: none;
}

.glass-controls-panel {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.glass-controls-panel input[type="checkbox"] {
  width: 18px;
  height: 18px;
  vertical-align: middle;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

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

.btn-secondary:hover {
  background: var(--border);
}

.glass-result {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.glass-result h3 {
  margin-top: 0;
}

/* Mobile: Stack vertically */
@media (max-width: 1024px) {
  .glass-shatter-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
  
  .glass-preview-wrap {
    min-height: 300px;
  }
}

@media (max-width: 768px) {
  .glass-shatter-layout {
    padding: 0 0.5rem;
  }

  .button-row {
    grid-template-columns: 1fr;
  }
  
  #glass-upload-zone {
    padding: 1.25rem;
  }
  
  #glass-upload-zone .upload-icon {
    font-size: 2rem;
  }
}