:root {
  --bg-primary: #0a0a16;
  --bg-secondary: #121224;
  --bg-tertiary: #1a1a33;
  --bg-card: rgba(30, 30, 53, 0.7);
  --accent: #ff477e;
  --accent-hover: #ff7096;
  --accent2: #4361ee;
  --accent3: #7209b7;
  --text-primary: #ffffff;
  --text-secondary: #e0e0e8;
  --text-muted: #8a8a9a;
  --border: rgba(255, 255, 255, 0.08);
  --success: #00f5d4;
  --shadow: 0 8px 32px rgba(0,0,0,0.4);
  --radius: 10px;
  --radius-lg: 16px;
  --glass-bg: rgba(18, 18, 36, 0.75);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* Header */
.app-header {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 900;
}

.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
}

.logo span { color: var(--accent); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.2s;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #c0392b);
  color: white;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(233,69,96,0.4); }

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-success {
  background: linear-gradient(135deg, #00b894, #00d2ff);
  color: white;
}
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(0,184,148,0.4); }

.btn-icon {
  width: 36px; height: 36px;
  padding: 0;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 16px;
}
.btn-icon:hover { background: var(--accent); border-color: var(--accent); }
.btn-icon.active { background: var(--accent); border-color: var(--accent); color: white; }

/* Main Layout */
.app-layout {
  display: flex;
  height: calc(100vh - 57px);
}

/* Left Toolbar */
.toolbar {
  width: 60px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 8px;
  flex-shrink: 0;
  z-index: 50;
}

.tool-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: var(--radius);
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 18px;
  position: relative;
}
.tool-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.tool-btn.active { background: var(--accent); color: white; }
.tool-btn .tooltip {
  position: absolute;
  left: 50px;
  background: var(--bg-card);
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 12px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  border: 1px solid var(--border);
  z-index: 10;
}
.tool-btn:hover .tooltip { opacity: 1; }

.tool-divider {
  width: 30px;
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}

/* Canvas Area */
.canvas-area {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  background-image: radial-gradient(circle at 1px 1px, rgba(255,255,255,0.03) 1px, transparent 0);
  background-size: 20px 20px;
  overflow: auto;
  padding: 20px;
}

.canvas-wrapper {
  position: relative;
  box-shadow: 0 8px 40px rgba(0,0,0,0.5);
  border-radius: 4px;
  overflow: hidden;
}

#mainCanvas {
  display: block;
  cursor: default;
}

/* Right Panel */
.properties-panel {
  width: 320px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  z-index: 50;
}

.panel-section {
  border-bottom: 1px solid var(--border);
}

.panel-header {
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
}
.panel-header:hover { background: rgba(255,255,255,0.02); }

.panel-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.panel-toggle {
  font-size: 12px;
  color: var(--text-muted);
  transition: transform 0.2s;
}
.panel-section.collapsed .panel-toggle { transform: rotate(-90deg); }
.panel-section.collapsed .panel-content { display: none; }

.panel-content {
  padding: 0 16px 16px;
}

/* Form Controls */
.form-group {
  margin-bottom: 12px;
}

.form-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  display: block;
}

.form-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.form-input, .form-select {
  width: 100%;
  padding: 8px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s;
}
.form-input:focus, .form-select:focus { border-color: var(--accent); }

.form-select {
  cursor: pointer;
  appearance: none;
  background-image: url("image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23b0b0c8' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 28px;
}

.form-input-sm {
  width: 60px;
  padding: 6px 8px;
  text-align: center;
}

input[type="color"] {
  -webkit-appearance: none;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  width: 36px;
  height: 36px;
  cursor: pointer;
  padding: 2px;
  background: var(--bg-primary);
}
input[type="color"]::-webkit-color-swatch-wrapper { padding: 2px; }
input[type="color"]::-webkit-color-swatch { border: none; border-radius: 4px; }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-primary);
  border-radius: 3px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  background: var(--accent);
  border-radius: 50%;
  cursor: pointer;
}

/* Gradient Preview */
.gradient-preview {
  width: 100%;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  cursor: pointer;
}

.gradient-colors {
  display: flex;
  gap: 8px;
  align-items: center;
}

.gradient-stop {
  display: flex;
  align-items: center;
  gap: 4px;
}

.gradient-stop label {
  font-size: 11px;
  color: var(--text-muted);
}

.gradient-direction {
  display: flex;
  gap: 4px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.dir-btn {
  width: 28px; height: 28px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}
.dir-btn:hover, .dir-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

/* Text Style Buttons */
.style-buttons {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.style-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 14px;
  transition: all 0.2s;
}
.style-btn:hover { background: var(--bg-card); color: var(--text-primary); }
.style-btn.active { background: var(--accent); border-color: var(--accent); color: white; }

.style-btn-bold { font-weight: 900; font-size: 15px; }
.style-btn-italic { font-style: italic; font-size: 15px; }
.style-btn-underline { text-decoration: underline; font-size: 14px; }

/* Alignment */
.align-buttons {
  display: flex;
  gap: 4px;
}

/* Text Effects */
.effect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}

.effect-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  font-size: 12px;
  color: var(--text-secondary);
}
.effect-item:hover { border-color: var(--accent); }
.effect-item.active { background: rgba(233,69,96,0.15); border-color: var(--accent); color: var(--accent); }

/* Font Custom Input */
.custom-font-input {
  display: flex;
  gap: 6px;
  margin-top: 8px;
}

/* Layers */
.layer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 4px;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 12px;
}
.layer-item:hover { border-color: var(--accent); }
.layer-item.active { border-color: var(--accent); background: rgba(233,69,96,0.1); }

.layer-icon { font-size: 14px; }
.layer-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.layer-actions { display: flex; gap: 4px; }
.layer-action-btn {
  width: 22px; height: 22px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 4px;
  font-size: 12px;
}
.layer-action-btn:hover { background: var(--bg-card); color: var(--text-primary); }

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
}
.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  max-width: 700px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
}

/* Size Presets */
.size-presets {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.size-preset {
  padding: 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}
.size-preset:hover { border-color: var(--accent); background: rgba(233,69,96,0.05); }
.size-preset.active { border-color: var(--accent); background: rgba(233,69,96,0.15); box-shadow: 0 0 15px rgba(233,69,96,0.2); }

.size-preset-name { font-size: 14px; font-weight: 700; margin-bottom: 4px; display: block; }
.size-preset-dims { font-size: 12px; color: var(--text-secondary); display: block; }

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 2000;
  transition: transform 0.3s ease;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow);
}
.toast.show { transform: translateX(-50%) translateY(0); }
.toast.success { border-color: #00b894; }

/* Responsive */
@media (max-width: 1200px) {
  .properties-panel { width: 280px; }
}

@media (max-width: 900px) {
  .app-layout { flex-direction: column; height: auto; min-height: calc(100vh - 57px); }
  .toolbar { flex-direction: row; width: 100%; height: auto; padding: 8px; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border); }
  .tool-divider { width: 1px; height: 30px; margin: 0 4px; }
  .properties-panel { width: 100%; max-height: none; border-left: none; border-top: 1px solid var(--border); flex: 1; }
  .canvas-area { padding: 10px; height: 45vh; min-height: 350px; }
  .size-presets { grid-template-columns: 1fr; }
  .app-header { flex-wrap: wrap; }
  .header-actions { margin-top: 10px; width: 100%; overflow-x: auto; padding-bottom: 5px; }
}

/* Export progress */
.export-progress {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--bg-primary);
  z-index: 9999;
  display: none;
}
.export-progress.active { display: block; }
.export-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--success));
  width: 0%;
  transition: width 0.3s;
}