:root {
  --bg: #10151c;
  --bg-2: #171e27;
  --line: #2a3442;
  --text: #e8eef4;
  --muted: #93a0b0;
  --accent: #2f9e8c;
  --accent-2: #1d6f63;
  --danger: #d15b5b;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 500px at 100% -10%, rgba(47, 158, 140, 0.16), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Tahoma, Arial, sans-serif;
}

.page {
  width: min(920px, calc(100% - 32px));
  margin: 40px auto 64px;
}

.hero h1 {
  margin: 8px 0 10px;
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  letter-spacing: -0.03em;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.lede, .hint, .status, .progress-sub, .file-size {
  color: var(--muted);
  line-height: 1.7;
}

.card {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  margin-top: 18px;
}

.drop {
  border-style: dashed;
  min-height: 180px;
  display: grid;
  place-items: center;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.drop.over {
  border-color: var(--accent);
  background: rgba(47, 158, 140, 0.08);
}

.drop-inner {
  text-align: center;
  display: grid;
  gap: 10px;
  justify-items: center;
}

.drop-inner span {
  color: var(--muted);
  font-size: 0.9rem;
}

.file-meta {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}

.file-name {
  margin: 0;
  font-weight: 700;
  word-break: break-all;
}

.file-size {
  margin: 6px 0 0;
}

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

.actions .status {
  margin: 0;
  flex: 1 1 220px;
}

.btn {
  appearance: none;
  border: 1px solid var(--line);
  background: #222b36;
  color: var(--text);
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 700;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn.primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.btn.ghost {
  background: transparent;
}

.btn.danger {
  background: transparent;
  border-color: rgba(209, 91, 91, 0.5);
  color: #f0b4b4;
}

.progress-top, .bar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.bar {
  height: 12px;
  border-radius: 999px;
  background: #0d1218;
  overflow: hidden;
  margin: 12px 0;
}

.bar i {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent-2), #7ee0d0);
  transition: width 0.2s ease;
}

.stats {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 12px;
}

.stats article {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px 16px;
}

.stats small {
  color: var(--muted);
  display: block;
  margin-bottom: 6px;
}

.stats b {
  font-size: 1.35rem;
}

.log-card h2 {
  margin: 0 0 12px;
  font-size: 1rem;
}

pre {
  margin: 0;
  max-height: 240px;
  overflow: auto;
  background: #0d1218;
  border-radius: 12px;
  padding: 14px;
  color: #c9d6e2;
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

code {
  font-size: 0.82rem;
  color: #cde8e2;
}

@media (max-width: 640px) {
  .page {
    margin-top: 20px;
  }

  .file-meta {
    flex-direction: column;
    align-items: stretch;
  }
}