:root {
  --ink: #13201f;
  --muted: #64716e;
  --line: #d9e1df;
  --paper: #ffffff;
  --soft: #edf4f2;
  --brand: #0e5c56;
  --brand-2: #d99635;
  --danger: #a53636;
  --shadow: 0 18px 50px rgba(23, 42, 39, 0.13);
}

* { box-sizing: border-box; }

html { color-scheme: light; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(14, 92, 86, 0.09), rgba(217, 150, 53, 0.08)),
    repeating-linear-gradient(90deg, rgba(14, 92, 86, 0.04) 0 1px, transparent 1px 36px),
    #f6f8f7;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  min-height: 42px;
  padding: 0 14px;
  cursor: pointer;
}

button:hover { border-color: var(--brand); }
button:disabled { opacity: 0.55; cursor: wait; }

.primary {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}

.app-shell {
  width: min(1420px, 100%);
  margin: 0 auto;
  padding: 22px;
}

.topbar,
.report-toolbar,
.section-head,
.toolbar-actions,
.actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar {
  justify-content: space-between;
  padding: 10px 0 22px;
}

.topbar h1,
.report-toolbar h2,
.form-card h3,
.history h2 {
  margin: 0;
  letter-spacing: 0;
}

.topbar h1 {
  font-size: clamp(30px, 5vw, 56px);
  line-height: 1;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.status-pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--muted);
  padding: 8px 12px;
  white-space: nowrap;
}

.workspace {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 18px;
  align-items: start;
}

.upload-panel,
.report-panel,
.form-card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.upload-panel {
  position: sticky;
  top: 16px;
  padding: 14px;
}

.drop-zone {
  position: relative;
  display: grid;
  gap: 12px;
  place-items: center;
  min-height: 260px;
  padding: 20px;
  text-align: center;
  border: 2px dashed #b8c8c5;
  border-radius: 8px;
  background: linear-gradient(180deg, #fff, #eff6f4);
}

.drop-zone.is-dragging { border-color: var(--brand); background: #e5f2ef; }
.drop-zone input { position: absolute; inset: 0; opacity: 0; pointer-events: none; }
.drop-zone h2, .drop-zone p { margin: 0; }
.drop-zone p { color: var(--muted); line-height: 1.45; }

.drop-art {
  width: 118px;
  height: 82px;
  position: relative;
}

.drop-art span {
  position: absolute;
  display: block;
  border: 2px solid var(--brand);
  background: #fff;
  box-shadow: 0 10px 20px rgba(14, 92, 86, 0.12);
}

.drop-art span:nth-child(1) { width: 58px; height: 72px; left: 10px; top: 8px; }
.drop-art span:nth-child(2) { width: 58px; height: 72px; right: 8px; top: 0; border-color: var(--brand-2); }
.drop-art span:nth-child(3) { width: 42px; height: 2px; left: 48px; top: 43px; background: var(--brand); }

.file-list,
.history-list,
.actions {
  margin-top: 14px;
}

.file-chip,
.history-item {
  display: grid;
  gap: 4px;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  margin-bottom: 8px;
}

.file-chip strong,
.history-item strong {
  overflow-wrap: anywhere;
}

.file-chip small,
.history-item small {
  color: var(--muted);
}

.actions { flex-wrap: wrap; }
.actions button { flex: 1 1 130px; }

.history {
  border-top: 1px solid var(--line);
  margin-top: 16px;
  padding-top: 14px;
}

.section-head {
  justify-content: space-between;
}

.report-panel {
  padding: 16px;
}

.report-toolbar {
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding-bottom: 14px;
  margin-bottom: 14px;
}

.toolbar-actions { flex-wrap: wrap; justify-content: flex-end; }

.alert {
  border-radius: 8px;
  border: 1px solid #e8c58b;
  background: #fff6e6;
  color: #60410d;
  padding: 12px;
  margin-bottom: 14px;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.form-card {
  padding: 14px;
  box-shadow: none;
}

.form-card h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

label {
  display: grid;
  gap: 6px;
  margin-bottom: 11px;
  color: #263835;
  font-size: 13px;
  font-weight: 750;
}

input,
textarea {
  width: 100%;
  border: 1px solid #c8d4d1;
  border-radius: 8px;
  background: #fbfdfc;
  color: var(--ink);
  padding: 10px 11px;
  line-height: 1.35;
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(14, 92, 86, 0.15);
  border-color: var(--brand);
}

.two-col,
.sketch-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.wide { grid-column: 1 / -1; }

.price-row {
  display: grid;
  grid-template-columns: 1fr 150px 42px;
  gap: 8px;
  align-items: end;
  margin-bottom: 8px;
}

.price-row button {
  width: 42px;
  padding: 0;
  color: var(--danger);
}

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

  .upload-panel {
    position: static;
  }
}

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

  .topbar,
  .report-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions button {
    flex: 1 1 140px;
  }

  .two-col,
  .sketch-grid,
  .price-row {
    grid-template-columns: 1fr;
  }

  .price-row button {
    width: 100%;
  }
}