:root {
  --lab-bg-1: #e6f4ef;
  --lab-bg-2: #f7e2bc;
  --lab-paper: rgba(255, 251, 245, 0.92);
  --lab-ink: #173734;
  --lab-subtle: #5c716c;
  --lab-border: rgba(33, 89, 82, 0.14);
  --lab-accent: #0f7a6a;
  --lab-accent-soft: rgba(15, 122, 106, 0.1);
  --lab-shadow: 0 24px 60px rgba(18, 52, 47, 0.13);
  --lab-danger: #8f4838;
  --lab-warn: #9b6b15;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--lab-ink);
  background:
    radial-gradient(circle at top left, rgba(119, 196, 185, 0.4), transparent 34%),
    radial-gradient(circle at top right, rgba(242, 198, 124, 0.5), transparent 28%),
    linear-gradient(135deg, var(--lab-bg-1), #f7f1e6 55%, var(--lab-bg-2));
  min-height: 100vh;
}

.lab-shell {
  max-width: 1360px;
  margin: 0 auto;
  padding: 36px 24px 56px;
}

.lab-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 800;
  color: #0d6d63;
}

h1, h2 {
  margin: 0;
  font-family: "Fraunces", serif;
  line-height: 0.95;
}

h1 {
  font-size: clamp(3rem, 6vw, 5.3rem);
  max-width: 10ch;
}

h2 {
  font-size: 2rem;
  margin-bottom: 14px;
}

.subhead {
  max-width: 62ch;
  color: var(--lab-subtle);
  font-size: 1.06rem;
  line-height: 1.6;
}

.lab-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 8px;
}

.lab-links a {
  color: #0d6d63;
  text-decoration: none;
  font-weight: 700;
}

.lab-grid {
  display: grid;
  grid-template-columns: minmax(320px, 440px) minmax(420px, 1fr);
  gap: 22px;
}

.panel {
  background: var(--lab-paper);
  border: 1px solid var(--lab-border);
  border-radius: 28px;
  box-shadow: var(--lab-shadow);
  padding: 28px;
  backdrop-filter: blur(10px);
}

.stack {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-weight: 700;
}

.field small {
  color: var(--lab-subtle);
}

input,
select,
button {
  font: inherit;
}

input[type="text"],
input[type="number"],
select,
input[type="file"] {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(22, 70, 64, 0.16);
  background: rgba(255, 255, 255, 0.88);
  padding: 14px 16px;
  color: var(--lab-ink);
}

.grid-two {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.file-list {
  min-height: 64px;
  border-radius: 20px;
  border: 1px dashed rgba(15, 122, 106, 0.28);
  background: rgba(255, 255, 255, 0.65);
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.file-list.empty {
  color: var(--lab-subtle);
  align-items: center;
}

.file-pill {
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(15, 122, 106, 0.08);
  border: 1px solid rgba(15, 122, 106, 0.14);
  font-size: 0.94rem;
}

.actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 14px 20px;
  cursor: pointer;
  font-weight: 800;
}

.btn.primary {
  background: linear-gradient(135deg, #0d7a6a, #12544c);
  color: white;
}

.btn.ghost {
  background: rgba(255, 255, 255, 0.82);
  color: var(--lab-ink);
  border: 1px solid rgba(22, 70, 64, 0.16);
}

.btn:disabled {
  opacity: 0.6;
  cursor: wait;
}

.status {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--lab-border);
}

.status.subtle { color: var(--lab-subtle); }
.status.busy { color: #0d6d63; background: rgba(15, 122, 106, 0.08); }
.status.error { color: var(--lab-danger); background: rgba(143, 72, 56, 0.08); }
.status.ok { color: #0f6b44; background: rgba(15, 107, 68, 0.08); }

.result-stack {
  display: grid;
  gap: 16px;
}

.empty-state {
  padding: 24px;
  border-radius: 20px;
  border: 1px dashed rgba(15, 122, 106, 0.25);
  color: var(--lab-subtle);
}

.result-card {
  border-radius: 22px;
  border: 1px solid var(--lab-border);
  background: rgba(255, 255, 255, 0.8);
  padding: 20px;
}

.result-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
}

.result-summary {
  font-weight: 700;
  margin-bottom: 10px;
}

.result-meta {
  color: var(--lab-subtle);
  font-size: 0.96rem;
  line-height: 1.6;
}

.result-list {
  margin: 12px 0 0;
  padding-left: 18px;
  color: var(--lab-ink);
}

.result-list li + li {
  margin-top: 8px;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 12px;
}

.pill {
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.88rem;
  font-weight: 700;
  background: var(--lab-accent-soft);
  color: #0d6d63;
}

.pill.warn {
  background: rgba(155, 107, 21, 0.1);
  color: var(--lab-warn);
}

.pill.danger {
  background: rgba(143, 72, 56, 0.1);
  color: var(--lab-danger);
}

.score-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.score-tile {
  border-radius: 18px;
  border: 1px solid var(--lab-border);
  background: rgba(245, 252, 250, 0.88);
  padding: 16px;
}

.score-tile strong {
  display: block;
  margin-bottom: 4px;
}

@media (max-width: 980px) {
  .lab-grid {
    grid-template-columns: 1fr;
  }

  .lab-header {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .lab-shell {
    padding: 22px 14px 40px;
  }

  .panel {
    padding: 20px;
    border-radius: 22px;
  }

  .grid-two,
  .score-grid {
    grid-template-columns: 1fr;
  }
}