:root {
  color-scheme: dark;
  --bg: #120b18;
  --panel: #1c1424;
  --panel-2: #241a30;
  --text: #efe6f7;
  --muted: #a79bb4;
  --accent: #c084fc;
  --accent-2: #8b5cf6;
  --border: #3a2c48;
  --ok: #4ade80;
  --warn: #fbbf24;
  --err: #f87171;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  background:
    radial-gradient(1200px 500px at 20% -10%, rgba(139, 92, 246, 0.16), transparent 60%),
    radial-gradient(1000px 500px at 90% 0%, rgba(192, 132, 252, 0.12), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  min-height: 100vh;
}

.shell {
  width: min(1180px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 28px 0 40px;
}

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}

.eyebrow--compact { margin-bottom: 2px; }

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  line-height: 1.1;
}

.lede {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.6;
  max-width: 720px;
}

.panel {
  background: linear-gradient(180deg, rgba(28, 20, 36, 0.98), rgba(18, 11, 24, 0.97));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 18px;
  margin-bottom: 16px;
}

/* --- Dropzone --- */

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 14px;
  padding: 26px 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:hover, .dropzone.is-dragging {
  border-color: var(--accent);
  background: rgba(192, 132, 252, 0.05);
}

.dropzone__icon {
  color: var(--accent);
  flex: 0 0 64px;
}

.dropzone__icon svg { width: 64px; height: 64px; }

.dropzone__copy { flex: 1; }

.dropzone__copy h2 { margin: 0 0 4px; font-size: 1.15rem; }

.dropzone__copy p { margin: 0; color: var(--muted); font-size: 0.92rem; }

.dropzone__cta { text-align: center; }

.dropzone__cta-label {
  display: inline-block;
  background: var(--accent-2);
  color: white;
  padding: 9px 18px;
  border-radius: 999px;
  font-weight: 600;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* --- Buttons --- */

.button {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.15s ease, opacity 0.15s ease;
}

.button:hover:not(:disabled) { filter: brightness(1.12); }

.button:disabled { opacity: 0.45; cursor: not-allowed; }

.button--accent {
  background: var(--accent-2);
  color: white;
  border-color: transparent;
}

.button--ghost { background: transparent; color: var(--text); }

.upload-actions {
  display: flex;
  gap: 10px;
  margin-top: 14px;
}

/* --- Workspace grid --- */

.workspace {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

@media (max-width: 860px) {
  .workspace { grid-template-columns: 1fr; }
}

/* --- Tabs --- */

.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}

.tab {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
}

.tab.is-active {
  background: var(--accent-2);
  color: white;
  border-color: transparent;
}

.tab-panel { display: none; }
.tab-panel.is-active { display: block; }

/* --- Controls --- */

.control-label {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
  margin: 12px 0 6px;
}

.color-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.color-row .control-label { margin: 0; }

.color-tools { display: flex; gap: 8px; align-items: center; }

.color-tools input[type="color"] {
  width: 46px;
  height: 34px;
  padding: 2px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-2);
  cursor: pointer;
}

.mini-button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  font-weight: 600;
  cursor: pointer;
}

.mini-button.is-active { background: var(--accent-2); color: white; border-color: transparent; }

.slider-row { display: block; margin: 6px 0; }

.slider-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent-2);
}

.check-row {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 8px 0;
  cursor: pointer;
}

.check-row input { accent-color: var(--accent-2); width: 17px; height: 17px; }

.radio-col { display: flex; gap: 16px; margin: 4px 0 4px; }

.radio-row { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.radio-row input { accent-color: var(--accent-2); }

.select {
  width: 100%;
  margin-top: 4px;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 0.95rem;
}

hr { border: none; border-top: 1px solid var(--border); margin: 16px 0; }

.hint { color: var(--muted); font-size: 0.8rem; margin: 4px 0 10px; }

/* --- Preview --- */

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.panel-head h2 { margin: 0 0 3px; font-size: 1.1rem; }

.panel-head p { margin: 0; color: var(--muted); font-size: 0.85rem; }

.view-switch { display: flex; gap: 6px; }

.view-btn {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.view-btn.is-active { background: var(--accent-2); color: white; border-color: transparent; }

.stage {
  position: relative;
  min-height: 320px;
  background: #0d0812;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  display: grid;
  place-items: center;
}

.preview-canvas {
  display: block;
  max-width: 100%;
  max-height: 620px;
  image-rendering: auto;
  cursor: crosshair;
}

.stage-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  font-size: 0.95rem;
}

/* --- Status bar --- */

.status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 12px;
}

.status-text { color: var(--muted); font-size: 0.88rem; }

.status-badge {
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.status-badge--idle { background: var(--panel-2); color: var(--muted); }
.status-badge--working { background: rgba(139, 92, 246, 0.25); color: var(--accent); }
.status-badge--done { background: rgba(74, 222, 128, 0.18); color: var(--ok); }
.status-badge--error { background: rgba(248, 113, 113, 0.18); color: var(--err); }

/* --- Notes --- */

.notes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}

.note-card h3 { margin: 0 0 8px; font-size: 0.98rem; color: var(--accent); }

.note-card p, .note-card li { color: var(--muted); font-size: 0.9rem; line-height: 1.6; }

.note-card ol { padding-left: 18px; margin: 0; }