:root {
  --bg: #120607;
  --panel: #1a0c0e;
  --panel-soft: #241014;
  --maroon: #4a1018;
  --maroon-light: #74202d;
  --text: #f5eeee;
  --muted: #b5979b;
  --border: #3a171d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top right, rgba(116, 32, 45, 0.18), transparent 35%),
    var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

.app-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 360px 1fr;
}

.sidebar {
  padding: 22px;
  background: rgba(26, 12, 14, 0.96);
  border-right: 1px solid var(--border);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 24px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #74202d, #310b12);
  font-weight: 900;
  letter-spacing: -1px;
  box-shadow: 0 10px 30px rgba(116, 32, 45, 0.35);
}

.brand h1 {
  margin: 0;
  font-size: 24px;
}

.brand p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.upload-box {
  display: block;
  padding: 20px;
  margin-bottom: 18px;
  border: 1px dashed var(--maroon-light);
  border-radius: 16px;
  background: var(--panel-soft);
  text-align: center;
  cursor: pointer;
}

.upload-box:hover {
  background: #2b1117;
}

.upload-box span {
  display: block;
  font-weight: bold;
}

.upload-box small {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

input,
textarea,
button {
  width: 100%;
  font: inherit;
  border-radius: 12px;
}

input,
textarea {
  border: 1px solid var(--border);
  background: #100609;
  color: var(--text);
  outline: none;
  padding: 11px 12px;
}

textarea {
  resize: vertical;
  line-height: 1.4;
}

input:focus,
textarea:focus {
  border-color: var(--maroon-light);
}

input[type="range"] {
  padding: 0;
  accent-color: var(--maroon-light);
}

.actions {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

button {
  border: 0;
  padding: 12px;
  background: var(--maroon-light);
  color: white;
  cursor: pointer;
  font-weight: bold;
}

button:hover {
  background: #8c2836;
}

button.secondary {
  background: #30151a;
}

button.danger {
  color: #ffb9b9;
}

.editor-area {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.editor-header {
  width: min(100%, 960px);
  margin: 0 auto 16px;
  display: flex;
  align-items: end;
  justify-content: space-between;
}

.editor-header h2 {
  margin: 0;
  font-size: 22px;
}

.editor-header p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(116, 32, 45, 0.2);
  border: 1px solid var(--border);
  color: #f3c2c8;
  font-size: 12px;
  font-weight: bold;
}

.workbench {
  width: min(100%, 960px);
  margin: 0 auto;
  padding: 22px;
  border-radius: 22px;
  background:
    linear-gradient(45deg, rgba(255,255,255,0.04) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(255,255,255,0.04) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(255,255,255,0.04) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(255,255,255,0.04) 75%),
    #17090d;
  background-size: 28px 28px;
  background-position: 0 0, 0 14px, 14px -14px, -14px 0px;
  border: 1px solid var(--border);
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.4);
}

canvas {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 4 / 3;
  display: block;
  margin: 0 auto;
  background: black;
  cursor: grab;
  border: 2px solid var(--maroon-light);
  box-shadow:
    0 0 0 6px rgba(116, 32, 45, 0.14),
    0 18px 50px rgba(0, 0, 0, 0.45);
}

canvas:active {
  cursor: grabbing;
}

@media (max-width: 900px) {
  .app-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .editor-area {
    padding: 18px;
  }
}

.brand-logo {
  width: 46px;
  height: 46px;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(116, 32, 45, 0.35);
  border: 1px solid var(--border);
}