:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --bg: #f3f7fd;
  --card-bg: #ffffff;
  --primary: #1367d5;
  --primary-hover: #0f54af;
  --text: #13233a;
  --muted: #4f6078;
  --border: #d8e1ee;
  --success: #1f8d49;
  --error: #bf1f3d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
}

.page {
  width: min(960px, 100%);
  margin: 0 auto;
  padding-bottom: 1.5rem;
}

.hero {
  width: 100%;
  display: block;
  max-height: 320px;
  object-fit: cover;
}

.card {
  width: min(700px, calc(100% - 1.5rem));
  margin: -3rem auto 0;
  background: var(--card-bg);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  border: 1px solid var(--border);
  padding: 1rem;
}

h1 {
  margin: 0;
  text-align: center;
  font-size: clamp(1.5rem, 4.5vw, 2rem);
}

.subtitle {
  margin: 0.35rem 0 1rem;
  text-align: center;
  color: var(--muted);
}

form {
  display: grid;
  gap: 0.5rem;
}

label {
  font-weight: 600;
  font-size: 0.95rem;
}

input,
select,
button {
  width: 100%;
  font: inherit;
  border-radius: 10px;
}

input,
select {
  padding: 0.7rem 0.75rem;
  border: 1px solid var(--border);
  background: #fff;
}

input[type='file'] {
  padding: 0.65rem;
}

button {
  margin-top: 0.35rem;
  padding: 0.85rem 1rem;
  border: 0;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
}

button:hover:enabled {
  background: var(--primary-hover);
}

button:disabled {
  opacity: 0.65;
}

.progress-wrap {
  margin-top: 1rem;
}

.progress-label-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

progress {
  width: 100%;
  height: 0.95rem;
}

.status-wrap {
  margin-top: 1rem;
}

h2 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

#statusLog {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 280px;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #fafcff;
}

#statusLog li {
  padding: 0.55rem 0.65rem;
  border-bottom: 1px solid #ecf1f8;
  font-size: 0.93rem;
}

#statusLog li:last-child {
  border-bottom: 0;
}

.success {
  color: var(--success);
}

.error {
  color: var(--error);
}

footer {
  text-align: center;
  color: var(--muted);
  font-size: 0.95rem;
  padding: 1.25rem 0 2rem;
}

@media (max-width: 520px) {
  .card {
    margin-top: -2rem;
    padding: 0.9rem;
  }
}