:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color-scheme: light;
  color: #1a1a1a;
  background-color: #ffffff;

  --accent: #c3002f;
  --accent-2: #ff4d4f;
  --accent-grad: linear-gradient(135deg, #c3002f, #ff4d4f);
  --accent-soft: rgba(195, 0, 47, 0.1);

  --size-level-0: 0;
  --size-level-1: 4px;
  --size-level-2: 8px;
  --size-level-3: 16px;
  --size-level-4: 32px;
  --size-level-5: 64px;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  margin: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-width: 320px;
  height: 100vh;
  position: fixed;
  inset: 0;
  overflow: hidden;
}

* { box-sizing: border-box; }

.app-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--size-level-4);
  width: 100%;
  max-width: 1000px;
  height: 100%;
  max-height: 100vh;
  padding: var(--size-level-4);
  text-align: center;
  overflow: hidden;
}

header {
  display: flex;
  flex-direction: column;
  gap: var(--size-level-2);
}

header p { margin: 0; }

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--size-level-2);
}

.logo {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
}

.title {
  font-size: 2.5rem;
  line-height: 1.1;
  margin: 0;
  background: var(--accent-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.products-banner {
  display: flex;
  align-items: center;
  gap: var(--size-level-3);
  width: 100%;
  padding: var(--size-level-3) var(--size-level-4);
  border-radius: var(--size-level-3);
  background: linear-gradient(135deg, #f6fbfa, #eaf4f7);
  text-decoration: none;
  color: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.products-banner:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.products-banner-icon {
  font-size: 2rem;
  line-height: 1;
}

.products-banner-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  flex: 1;
}

.products-banner-text strong {
  font-size: 1.1rem;
  color: #1a1a1a;
}

.products-banner-text span {
  font-size: 0.85rem;
  color: #80868b;
}

.products-banner-arrow {
  width: 22px;
  height: 22px;
  color: #4a9ba8;
  flex-shrink: 0;
}

.upload-section {
  width: 100%;
  border: 2px dashed var(--accent);
  border-radius: var(--size-level-3);
  padding: var(--size-level-5);
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--size-level-3);
}

.upload-section:hover, .upload-section.dragging {
  background-color: var(--accent-soft);
}

.hidden-input { display: none; }
.editor-layout {
  display: flex;
  gap: var(--size-level-4);
  width: 100%;
  flex: 1 1 auto;
  align-items: stretch;
  justify-content: space-between;
  overflow: hidden;
}

@media (max-width: 800px) {
  .app-container {
    padding: var(--size-level-3);
    gap: var(--size-level-3);
  }
  
  .title {
    font-size: 1.5rem;
  }
  
  .editor-layout {
    flex-direction: column;
    gap: var(--size-level-3);
  }
  
  .controls {
    flex: 0 0 auto !important;
    width: 100% !important;
    height: auto !important;
    max-height: 45%;
    padding: var(--size-level-3) !important;
  }
}

.preview-container {
  position: relative;
  background-color: #9aa0a6;
  border-radius: var(--size-level-2);
  box-shadow: inset 0 0 10px rgba(0,0,0,0.1);
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  min-height: 0;
  justify-content: center;
  align-items: center;
  overflow: hidden;
}

canvas#main-canvas {
  max-width: 100%;
  max-height: 100%;
  display: block;
  object-fit: contain;
}

.magnifier {
  position: absolute;
  pointer-events: none;
  border: 3px solid var(--accent);
  border-radius: 50%;
  width: 180px;
  height: 180px;
  box-shadow: 0 0 15px rgba(0,0,0,0.3);
  z-index: 10;
  overflow: hidden;
  background-color: #fff;
  display: none;
}

.magnifier::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 14px;
  transform: translate(-50%, -50%);
  border: 2px solid var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 0 1px #fff, inset 0 0 0 1px #fff;
  pointer-events: none;
}

.magnifier-canvas {
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.crop-selection {
  position: absolute;
  border: 1px solid var(--accent);
  background-color: var(--accent-soft);
  z-index: 5;
  box-shadow: 0 0 0 4000px rgba(0, 0, 0, 0.3);
}

.crop-handle {
  position: absolute;
  width: 12px;
  height: 12px;
  background-color: var(--accent);
  border: 1px solid white;
  border-radius: var(--size-level-1);
  z-index: 6;
}

.crop-handle.tl { top: -6px; left: -6px; cursor: nwse-resize; }
.crop-handle.tr { top: -6px; right: -6px; cursor: nesw-resize; }
.crop-handle.bl { bottom: -6px; left: -6px; cursor: nesw-resize; }
.crop-handle.br { bottom: -6px; right: -6px; cursor: nwse-resize; }
.crop-handle.tm { top: -6px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.crop-handle.bm { bottom: -6px; left: 50%; transform: translateX(-50%); cursor: ns-resize; }
.crop-handle.lm { top: 50%; left: -6px; transform: translateY(-50%); cursor: ew-resize; }
.crop-handle.rm { top: 50%; right: -6px; transform: translateY(-50%); cursor: ew-resize; }

.crop-move-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  cursor: move;
}

.crop-dimensions {
  position: absolute;
  top: -25px;
  left: 0;
  background-color: var(--accent);
  color: white;
  padding: 2px 6px;
  font-size: 10px;
  border-radius: var(--size-level-1);
  white-space: nowrap;
}

.controls {
  flex: 0 0 260px;
  display: flex;
  flex-direction: column;
  gap: var(--size-level-1);
  padding: var(--size-level-3);
  background: #f4f5f7;
  border: 1px solid #e0e2e6;
  border-radius: var(--size-level-2);
  text-align: left;
  overflow-y: auto;
  height: 100%;
  font-size: 0.78rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: var(--size-level-1);
  padding-bottom: var(--size-level-1);
  border-bottom: 1px solid #e0e2e6;
}

.controls label {
  font-weight: 600;
  font-size: 0.72rem;
  color: #5f6368;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.control-group:last-of-type {
  border-bottom: none;
  padding-bottom: 0;
}

.controls .control-group p {
  margin: 0;
  font-size: 0.7rem;
  color: #80868b;
}

.controls label.check-row {
  display: flex;
  align-items: center;
  gap: var(--size-level-2);
  font-size: 0.78rem;
  font-weight: 500;
  color: #1a1a1a;
  text-transform: none;
  letter-spacing: 0;
  cursor: pointer;
}

.controls label.check-row input {
  accent-color: var(--accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

input[type="range"] {
  width: 100%;
  margin: 0;
  accent-color: var(--accent);
}

.color-presets {
  display: flex;
  gap: var(--size-level-2);
  flex-wrap: wrap;
}

.color-btn {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid #ddd;
  cursor: pointer;
  padding: 0;
}

.color-btn.active {
  border-color: var(--accent);
  transform: scale(1.1);
}

.actions {
  display: flex;
  gap: var(--size-level-2);
}

.controls > .actions:last-child {
  margin-top: auto;
}

button {
  border-radius: var(--size-level-1);
  border: 1px solid transparent;
  padding: 0.5em 0.9em;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--size-level-1);
}

.btn-primary { background: var(--accent-grad); color: white; flex: 1; }
.btn-primary:hover { filter: brightness(0.92); }
.btn-secondary { background-color: #f9f9f9; color: #1a1a1a; flex: 1; border: 1px solid #ddd; }
.btn-secondary:hover { border-color: var(--accent); }

.loading-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  justify-content: center; align-items: center;
  color: white;
  z-index: 20;
}

.animate-spin {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}