:root {
  --bg: #0e1014;
  --panel: #161a22;
  --border: #262c38;
  --text: #e8eaf0;
  --muted: #8a93a3;
  --accent: #4f9eff;
  --accent-hover: #6cb0ff;
  --error: #ff6f6f;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 48px 16px;
}

main {
  width: 100%;
  max-width: 640px;
}

h1 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0 0 28px;
  color: var(--muted);
}

form {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.drop {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.drop:hover, .drop--over {
  border-color: var(--accent);
  background: rgba(79, 158, 255, 0.06);
}
.drop input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}
.drop__text { color: var(--text); }
.drop__text small { color: var(--muted); }
.drop__filename {
  color: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  word-break: break-all;
}

.grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.grid .span2 { grid-column: 1 / -1; }
.grid label, form > label:not(.drop) {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
label > span {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="text"],
input[type="number"],
input[type="datetime-local"],
select {
  background: #0b0d12;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  font: inherit;
  font-size: 14px;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}

button {
  background: var(--accent);
  color: white;
  border: 0;
  border-radius: 9px;
  padding: 12px 18px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
button:hover:not(:disabled) { background: var(--accent-hover); }
button:disabled {
  opacity: 0.55;
  cursor: progress;
}

.status {
  margin: 0;
  min-height: 1.4em;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
}