/* Background Removal Tool (Tool 026) styles */
:root {
  --bg: #0b0a10;
  --panel: #161424;
  --accent: #7f5af0;
  --text: #f5f7fb;
  --muted: #9aa3b5;
  --border: rgba(255, 255, 255, 0.12);
  --error: #ff6b6b;
  --success: #4ade80;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", "Space Grotesk", system-ui, -apple-system, sans-serif;
  background: radial-gradient(circle at 20% 20%, rgba(127, 90, 240, 0.08), transparent 30%),
              radial-gradient(circle at 80% 0%, rgba(54, 211, 153, 0.08), transparent 25%),
              var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 32px 20px 48px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  background: rgba(127, 90, 240, 0.15);
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
}

.subhead {
  margin: 0 0 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.upload-drop {
  border: 1.5px dashed var(--border);
  border-radius: 12px;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px;
  color: var(--muted);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: rgba(255, 255, 255, 0.02);
}

.upload-drop:hover,
.upload-drop.dragover {
  border-color: var(--accent);
  background: rgba(127, 90, 240, 0.08);
  color: var(--text);
}

.canvas-shell {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  min-height: 320px;
  background-image: linear-gradient(45deg, #2a2a2a 25%, transparent 25%),
                    linear-gradient(-45deg, #2a2a2a 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, #2a2a2a 75%),
                    linear-gradient(-45deg, transparent 75%, #2a2a2a 75%);
  background-size: 24px 24px;
  background-position: 0 0, 0 12px, 12px -12px, -12px 0px;
  display: flex;
  align-items: center;
  justify-content: center;
}

canvas {
  max-width: 100%;
  height: auto;
  display: block;
}

.controls {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.button {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(127, 90, 240, 0.2), rgba(127, 90, 240, 0.08));
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 800;
  font-size: 11px;
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

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

.button:hover:enabled {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(127, 90, 240, 0.25);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
}

.row {
  display: flex;
  gap: 10px;
}

.row > .button {
  flex: 1;
}

.options {
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

.option-group {
  margin-bottom: 12px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.02);
}

.option-group label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type="color"],
input[type="file"],
select,
input[type="range"] {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px;
  border-radius: 8px;
}

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

.notice {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  padding: 10px;
  border-radius: 10px;
  color: var(--muted);
  font-size: 13px;
}

.status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}

.progress {
  height: 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.progress-inner {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #4ade80);
  transition: width 0.2s ease;
}

.suggestions {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.suggestion {
  padding: 10px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
  transition: transform 0.12s ease, border-color 0.12s ease;
}

.suggestion:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.hidden {
  display: none !important;
}

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

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