:root {
  color-scheme: dark;
  --bg: #101318;
  --surface: #181d24;
  --surface-2: #202733;
  --text: #f4f0e8;
  --muted: #aeb7c3;
  --line: #374251;
  --accent: #ffb23f;
  --accent-2: #5ec4ff;
  --good: #72d483;
  --bad: #ff6d65;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, Segoe UI, system-ui, -apple-system, sans-serif;
  background:
    linear-gradient(140deg, rgba(255, 178, 63, 0.14), transparent 42%),
    radial-gradient(circle at 84% 18%, rgba(94, 196, 255, 0.15), transparent 34%),
    var(--bg);
  color: var(--text);
}

.app {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 32px 16px;
}

.workspace {
  width: min(860px, 100%);
  display: grid;
  gap: 18px;
}

.intro {
  display: grid;
  gap: 8px;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(44px, 7vw, 76px);
  line-height: 0.95;
  letter-spacing: 0;
}

.summary {
  margin: 0;
  max-width: 700px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.55;
}

.steps {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(24, 29, 36, 0.76);
  padding: 16px 18px;
}

.steps h2 {
  margin: 0 0 10px;
  font-size: 18px;
  letter-spacing: 0;
}

.steps ol {
  margin: 0;
  padding-left: 22px;
  color: var(--text);
  line-height: 1.55;
}

.steps p {
  margin: 10px 0 0;
  color: var(--muted);
}

.dropzone {
  min-height: 220px;
  border: 2px dashed var(--line);
  border-radius: 8px;
  background: rgba(24, 29, 36, 0.88);
  display: grid;
  place-items: center;
  gap: 6px;
  padding: 28px;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  background: rgba(32, 39, 51, 0.94);
  transform: translateY(-1px);
}

.dropzone input {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
}

.drop-title {
  font-size: 26px;
  font-weight: 750;
}

.drop-subtitle {
  color: var(--muted);
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(24, 29, 36, 0.92);
  padding: 18px;
  display: grid;
  gap: 14px;
}

.status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 24px;
  color: var(--muted);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--line);
  flex: 0 0 auto;
}

.status-dot.ready {
  background: var(--accent-2);
}

.status-dot.good {
  background: var(--good);
}

.status-dot.bad {
  background: var(--bad);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

button,
.download {
  min-height: 42px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 750;
  text-decoration: none;
}

button {
  color: #17120a;
  background: var(--accent);
  cursor: pointer;
}

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

.download {
  color: var(--text);
  border-color: var(--line);
  background: var(--surface-2);
}

.log {
  min-height: 160px;
  max-height: 300px;
  overflow: auto;
  margin: 0;
  border-radius: 6px;
  background: #0b0e13;
  border: 1px solid #242b35;
  padding: 12px;
  color: #d7dee8;
  font: 13px/1.45 Consolas, ui-monospace, monospace;
  white-space: pre-wrap;
}

@media (max-width: 560px) {
  .app {
    padding: 18px 12px;
  }

  .dropzone {
    min-height: 170px;
  }

  .drop-title {
    font-size: 22px;
  }
}