:root {
  color-scheme: light;
  --bg: #f4f4f5;
  --text: #18181b;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #d4d4d8;
  --box-bg: #000;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding-block: 32px;
  padding-inline: 16px;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.container {
  max-width: 860px;
  margin: 0 auto;
}

.header {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
}

.camera-icon {
  width: 34px;
  height: 34px;
  color: var(--text);
}

.header h1 {
  font-size: 2rem;
  margin: 0;
  letter-spacing: 0.02em;
}

.subtitle {
  text-align: center;
  color: var(--muted);
  margin-top: 6px;
  margin-bottom: 28px;
}

.form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 12px;
}

.form input {
  flex: 1 1 220px;
  padding: 10px 12px;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}

.form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.form button {
  padding: 10px 22px;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.form button:hover {
  background: var(--accent-hover);
}

.form button:disabled {
  background: var(--border);
  cursor: not-allowed;
}

.status {
  min-height: 1.4em;
  text-align: center;
  color: var(--muted);
  margin: 4px 0 20px;
}

.status.error {
  color: #dc2626;
}

.screenshot-box {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 800 / 600;
  margin: 0 auto;
  background: var(--box-bg);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.screenshot-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.placeholder-text {
  color: #6b7280;
  font-size: 0.95rem;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0b0c;
    --text: #f4f4f5;
    --muted: #9ca3af;
    --border: #3f3f46;
    --box-bg: #000;
  }
  .form input {
    background: #18181b;
  }
}