:root {
  --ink: #10222a;
  --muted: #5e6f78;
  --line: rgba(16, 34, 42, 0.1);
  --panel: rgba(255, 255, 255, 0.88);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --accent: #0f766e;
  --accent-deep: #084c49;
  --accent-soft: rgba(15, 118, 110, 0.12);
  --gold: #b45309;
  --gold-soft: rgba(180, 83, 9, 0.12);
  --shadow: 0 24px 70px rgba(16, 34, 42, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at 12% 12%, rgba(15, 118, 110, 0.18), transparent 26%),
    radial-gradient(circle at 88% 10%, rgba(180, 83, 9, 0.14), transparent 22%),
    radial-gradient(circle at 74% 84%, rgba(15, 118, 110, 0.11), transparent 24%),
    linear-gradient(180deg, #f9f7f0 0%, #ece7d8 100%);
}

code,
table {
  font-family: "IBM Plex Mono", monospace;
}

.app-shell {
  width: min(1380px, calc(100vw - 24px));
  margin: 0 auto;
  padding: 18px 0 24px;
}

.hero {
  display: flex;
  gap: 16px;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 14px;
}

.hero-copy {
  min-width: 0;
}

.eyebrow,
.section-kicker,
.meta-label {
  margin: 0 0 6px;
  color: var(--accent-deep);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.panel h2,
.sheet-card h3,
.preview-section h4 {
  margin: 0;
  line-height: 1;
}

.hero h1 {
  font-size: clamp(1.55rem, 3vw, 3.1rem);
  letter-spacing: -0.04em;
}

.subtitle,
.panel-copy {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.pill {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  font-size: 0.82rem;
}

.workspace {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 12px;
}

.panel {
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.76);
  border-radius: 20px;
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.panel-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
}

.upload-panel,
.meta-panel,
.preview-panel {
  min-width: 0;
}

.upload-panel {
  display: flex;
  flex-direction: column;
}

.drop-zone {
  display: block;
  margin-top: 14px;
  padding: 18px;
  border: 1.5px dashed rgba(15, 118, 110, 0.32);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(15, 118, 110, 0.08), rgba(255, 255, 255, 0.98)),
    var(--panel-strong);
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.drop-zone:hover,
.drop-zone.drag-over {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 16px 36px rgba(15, 118, 110, 0.16);
}

.drop-title {
  display: block;
  font-size: 1rem;
  font-weight: 800;
}

.drop-subtitle {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.86rem;
}

.status,
.summary,
.log,
.empty-state,
.meta-card {
  border-radius: 16px;
}

.status {
  margin-top: 12px;
  padding: 11px 12px;
  background: rgba(16, 34, 42, 0.05);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
}

.status-ready {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.status-error {
  background: var(--gold-soft);
  color: var(--gold);
}

.primary-button,
.ghost-button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, opacity 160ms ease, background 160ms ease;
}

.primary-button {
  width: 100%;
  margin-top: 12px;
  padding: 13px 18px;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-deep) 100%);
  color: #fff;
  font-weight: 800;
}

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

.ghost-button {
  padding: 8px 12px;
  background: rgba(16, 34, 42, 0.06);
  color: var(--ink);
  font-size: 0.88rem;
}

.primary-button:hover:not(:disabled),
.ghost-button:hover {
  transform: translateY(-1px);
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 14px;
}

.meta-card {
  padding: 11px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.meta-card strong {
  display: block;
  font-size: 0.96rem;
  line-height: 1.35;
  word-break: break-word;
}

.summary,
.log {
  margin-top: 12px;
  padding: 12px 14px;
  font-size: 0.88rem;
  line-height: 1.5;
  white-space: pre-wrap;
}

.summary {
  background: linear-gradient(180deg, rgba(15, 118, 110, 0.08), rgba(255, 255, 255, 0.92));
}

.log {
  background: rgba(16, 34, 42, 0.05);
}

.preview-panel {
  margin-top: 12px;
}

.empty-state {
  padding: 16px;
  color: var(--muted);
  background: rgba(16, 34, 42, 0.04);
}

.empty-state.compact {
  margin-top: 8px;
  padding: 12px 14px;
}

.preview-grid {
  display: grid;
  gap: 14px;
}

.sheet-card {
  padding: 14px;
  border: 1px solid rgba(16, 34, 42, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
}

.sheet-card-header {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 12px;
}

.sheet-card h3 {
  font-size: 1.05rem;
}

.sheet-meta {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.45;
}

.sheet-badge {
  flex: 0 0 auto;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(15, 118, 110, 0.12);
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

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

.preview-section h4 {
  margin-bottom: 8px;
  font-size: 0.92rem;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

table {
  width: 100%;
  min-width: 420px;
  border-collapse: collapse;
}

.preview-section:first-child table {
  min-width: 520px;
}

th,
td {
  padding: 8px 9px;
  border-bottom: 1px solid rgba(16, 34, 42, 0.08);
  text-align: left;
  font-size: 0.8rem;
  vertical-align: top;
}

thead th {
  position: sticky;
  top: 0;
  background: #f4faf7;
}

tbody tr:nth-child(even) {
  background: rgba(16, 34, 42, 0.02);
}

.preview-note {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.hidden {
  display: none;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .hero {
    display: grid;
  }

  .hero-pills {
    justify-content: flex-start;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100vw - 18px, 1380px);
    padding-top: 12px;
  }

  .panel {
    padding: 14px;
    border-radius: 18px;
  }

  .meta-grid,
  .preview-split {
    grid-template-columns: 1fr;
  }

  .sheet-card-header,
  .panel-head {
    flex-direction: column;
  }

  table,
  .preview-section:first-child table {
    min-width: 100%;
  }
}