:root {
  --bg: #0f1419;
  --card: #1a222d;
  --text: #e8eef4;
  --muted: #8b9aab;
  --accent: #3d9cf5;
  --accent-dim: #2a6fad;
  --ok: #3ecf8e;
  --err: #f07178;
  --radius: 12px;
  --font: "Segoe UI", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: radial-gradient(1200px 600px at 20% -10%, #1e3a5f 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #2a1f3d 0%, transparent 50%), var(--bg);
  color: var(--text);
}

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 3rem 1.25rem 4rem;
}

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: 1.75rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

.lede {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.lede strong {
  color: var(--text);
  font-weight: 600;
}

.scan-link {
  display: inline-flex;
  margin-top: 1rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(61, 156, 245, 0.45);
}

.card {
  margin-top: 2rem;
  padding: 1.5rem;
  background: var(--card);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.06);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.35);
}

.upload-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.file-label {
  position: relative;
  flex: 1;
  min-width: 200px;
}

.file-label input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  cursor: pointer;
}

.file-pill {
  display: block;
  padding: 0.75rem 1rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  transition: border-color 0.15s, color 0.15s;
}

.file-label:hover .file-pill,
.file-label:focus-within .file-pill {
  border-color: var(--accent);
  color: var(--text);
}

.btn {
  appearance: none;
  border: none;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  background: linear-gradient(180deg, var(--accent), var(--accent-dim));
  color: #fff;
  box-shadow: 0 4px 14px rgba(61, 156, 245, 0.35);
}

.btn:hover:not(:disabled) {
  filter: brightness(1.06);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.hint {
  margin: 1rem 0 0;
  font-size: 0.8rem;
  color: var(--muted);
}

.status {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  line-height: 1.45;
  display: none;
}

.status.visible {
  display: block;
}

.status.success {
  background: rgba(62, 207, 142, 0.12);
  border: 1px solid rgba(62, 207, 142, 0.35);
  color: var(--ok);
}

.status.error {
  background: rgba(240, 113, 120, 0.1);
  border: 1px solid rgba(240, 113, 120, 0.35);
  color: var(--err);
}

.status.loading {
  background: rgba(61, 156, 245, 0.1);
  border: 1px solid rgba(61, 156, 245, 0.3);
  color: var(--accent);
}

.card-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.card-links a {
  color: var(--text);
  font-size: 0.8rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.35);
}