:root {
  --bg: #EDF0EC;
  --panel: #FFFFFF;
  --ink: #142420;
  --ink-soft: #4B5951;
  --line: #DCE1DB;
  --teal: #1F6F63;
  --teal-deep: #14241E;
  --amber: #C97A3D;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", sans-serif;
  -webkit-font-smoothing: antialiased;
}

.masthead {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.masthead-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.mark {
  width: 44px; height: 44px;
  border: 1px solid var(--teal);
  color: var(--teal);
  display: flex; align-items: center; justify-content: center;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.04em;
  flex-shrink: 0;
}
.masthead-text h1 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 28px;
  margin: 0;
  letter-spacing: -0.01em;
}
.masthead-text p {
  margin: 4px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 32px 24px 64px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.panel-label {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.upload-panel, .extracted-panel, .reports-panel, .metrics-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 24px;
}

.dropzone {
  border: 1.5px dashed var(--line);
  padding: 32px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.dropzone:hover, .dropzone.dragover {
  border-color: var(--teal);
  background: rgba(31, 111, 99, 0.04);
}
.dz-primary { margin: 0; font-size: 15px; color: var(--ink); }
.dz-file {
  margin: 8px 0 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--teal);
}

.upload-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  flex-wrap: wrap;
}
.upload-row label {
  font-size: 13px;
  color: var(--ink-soft);
}
.upload-row input[type="date"] {
  font-family: "IBM Plex Mono", monospace;
  border: 1px solid var(--line);
  padding: 8px 10px;
  background: var(--bg);
  color: var(--ink);
}
.upload-row button {
  margin-left: auto;
  background: var(--teal-deep);
  color: #fff;
  border: none;
  padding: 10px 18px;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s;
}
.upload-row button:hover { background: var(--teal); }
.upload-row button:disabled { opacity: 0.6; cursor: default; }

.upload-status {
  margin-top: 14px;
  font-size: 13px;
  color: var(--teal);
  min-height: 16px;
}
.upload-status.error { color: var(--amber); }

.extracted-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.extracted-list li {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.extracted-list li:last-child { border-bottom: none; }
.ex-value {
  font-family: "IBM Plex Mono", monospace;
  color: var(--teal-deep);
  font-weight: 500;
}

.reports-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.reports-head .panel-label { margin-bottom: 0; }
.reports-toggle {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-soft);
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.reports-toggle:hover { border-color: var(--teal); color: var(--teal); }
.reports-toggle.active {
  background: var(--teal-deep);
  border-color: var(--teal-deep);
  color: #fff;
}

.reports-list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 240px;
  overflow-y: auto;
}
.reports-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
  gap: 12px;
}
.reports-list li:last-child { border-bottom: none; }
.report-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.report-date {
  font-family: "IBM Plex Mono", monospace;
  color: var(--teal-deep);
  font-weight: 500;
}
.report-filename {
  font-size: 12px;
  color: var(--ink-soft);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.report-delete {
  flex-shrink: 0;
  background: none;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  padding: 6px 10px;
  cursor: pointer;
  transition: all 0.15s;
}
.report-delete:hover {
  border-color: var(--amber);
  color: var(--amber);
}
.report-delete:disabled { opacity: 0.5; cursor: default; }

.metric-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.empty-note {
  color: var(--ink-soft);
  font-size: 14px;
  margin: 0;
}
.chip {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink-soft);
  padding: 7px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.chip:hover { border-color: var(--teal); color: var(--teal); }
.chip.active {
  background: var(--teal-deep);
  border-color: var(--teal-deep);
  color: #fff;
}

.chart-card {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.chart-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 6px;
}
.chart-head h2 {
  font-family: "Fraunces", serif;
  font-weight: 600;
  font-size: 20px;
  margin: 0;
}
.chart-latest {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--teal);
}

footer {
  text-align: center;
  padding: 24px;
  color: var(--ink-soft);
  font-size: 12px;
}

@media (max-width: 560px) {
  .upload-row { flex-direction: column; align-items: stretch; }
  .upload-row button { margin-left: 0; }
}