:root {
  color-scheme: light;
  --bg: #f7f7f4;
  --panel: #ffffff;
  --text: #1b1b1b;
  --muted: #5f5f5f;
  --accent: #0f6fff;
  --border: #e4e4e0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.container {
  max-width: 880px;
  margin: 40px auto;
  padding: 0 20px 60px;
}

.logo {
  display: inline-block;
  width: 180px;
  height: auto;
  margin-bottom: 12px;
}

h1 {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

p {
  color: var(--muted);
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-top: 18px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
}

button.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

button:disabled {
  background: #9bbcff;
  cursor: not-allowed;
}

.hidden {
  display: none;
}

.status {
  margin-top: 12px;
  font-size: 0.95rem;
}

.status.ok {
  color: #1f7a1f;
}

.status.error {
  color: #b00020;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.file-input {
  padding: 8px;
  background: #fafafa;
  border: 1px dashed var(--border);
  border-radius: 8px;
  width: 100%;
}

.small {
  font-size: 0.9rem;
  color: var(--muted);
}