:root {
  --bg: #eef2ef;
  --panel: #fbfcfb;
  --panel-strong: #ffffff;
  --ink: #17211f;
  --muted: #687570;
  --line: #d8dfdc;
  --teal: #1f9d85;
  --teal-dark: #117966;
  --amber: #b86b20;
  --red: #b4463f;
  --shadow: 0 16px 40px rgba(23, 33, 31, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(31, 157, 133, 0.08), transparent 240px),
    var(--bg);
  color: var(--ink);
  font-family: Inter, "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

button,
input {
  font: inherit;
}

a {
  color: inherit;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 36px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.brand {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  flex: 0 0 48px;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: var(--shadow);
}

.brand-mark svg {
  width: 32px;
  height: 32px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 24px;
  line-height: 1.15;
  font-weight: 760;
}

.brand p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.metric-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(96px, 1fr));
  gap: 8px;
}

.topbar-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.metric-strip > div {
  min-height: 56px;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.74);
}

.metric-strip span {
  display: block;
  font-size: 18px;
  font-weight: 760;
  line-height: 1.2;
}

.metric-strip small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.upload-panel,
.result-panel,
.records-panel {
  padding: 18px;
}

.records-panel {
  grid-column: 1 / -1;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.section-title h2 {
  font-size: 16px;
  line-height: 1.25;
  font-weight: 720;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  max-width: 160px;
  padding: 0 10px;
  border: 1px solid #ecd7bc;
  border-radius: 999px;
  color: var(--amber);
  background: #fff8ee;
  font-size: 12px;
  white-space: nowrap;
}

.status-pill.ready {
  border-color: #cde7df;
  color: var(--teal-dark);
  background: #effaf6;
}

.upload-form {
  display: grid;
  gap: 14px;
}

.dropzone {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  align-items: center;
  min-height: 150px;
  padding: 18px;
  border: 1.5px dashed #aeb9b5;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(31, 157, 133, 0.08), rgba(184, 107, 32, 0.06)),
    #f9fbfa;
  cursor: pointer;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.dropzone:hover,
.dropzone.drag-over {
  border-color: var(--teal);
  background:
    linear-gradient(135deg, rgba(31, 157, 133, 0.13), rgba(184, 107, 32, 0.08)),
    #ffffff;
}

.dropzone.drag-over {
  transform: translateY(-1px);
}

.drop-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 8px;
  color: var(--teal-dark);
  background: #e6f6f1;
}

.drop-icon svg,
.button svg,
.icon-button svg {
  width: 18px;
  height: 18px;
}

.drop-copy {
  display: grid;
  min-width: 0;
  gap: 5px;
}

.drop-copy strong {
  display: block;
  font-size: 18px;
  line-height: 1.28;
  overflow-wrap: anywhere;
}

.drop-copy span {
  color: var(--muted);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.button,
.icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 40px;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease, opacity 140ms ease;
}

.button {
  padding: 0 14px;
  font-weight: 680;
}

.button.primary {
  color: #ffffff;
  background: var(--teal-dark);
}

.button.primary:hover {
  background: #0f6b5a;
}

.button.secondary,
.icon-button {
  color: var(--ink);
  border-color: var(--line);
  background: var(--panel-strong);
}

.button.secondary:hover,
.icon-button:hover {
  border-color: #b8c3bf;
  background: #f5f7f6;
}

.button.danger {
  color: var(--red);
}

.button:disabled,
.button.disabled {
  pointer-events: none;
  opacity: 0.46;
}

.icon-button {
  width: 38px;
  height: 38px;
  padding: 0;
}

.link-preview {
  display: flex;
  align-items: center;
  min-height: 80px;
  margin-bottom: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7f9f8;
}

.link-preview a {
  color: var(--teal-dark);
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  overflow-wrap: anywhere;
}

.link-preview a:hover {
  text-decoration: underline;
}

.records-title {
  margin-bottom: 12px;
}

.record-tools {
  display: grid;
  grid-template-columns: minmax(220px, 340px) minmax(0, 1fr);
  align-items: start;
  gap: 12px;
  margin-bottom: 12px;
}

.search-box {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--muted);
}

.search-box svg {
  width: 18px;
  height: 18px;
}

.search-box input {
  width: 100%;
  min-width: 0;
  border: 0;
  outline: 0;
  color: var(--ink);
  background: transparent;
}

.tag-filter,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag-chip,
.tag-mini {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #46514e;
  background: #ffffff;
  cursor: pointer;
  white-space: nowrap;
}

.tag-chip {
  padding: 0 10px;
  font-size: 12px;
  font-weight: 650;
}

.tag-chip.active {
  border-color: #b7dfd4;
  color: var(--teal-dark);
  background: #edf9f5;
}

.tag-mini {
  min-height: 24px;
  padding: 0 8px;
  font-size: 12px;
}

.tag-mini:hover,
.tag-chip:hover {
  border-color: #aab8b3;
}

.tag-empty {
  color: var(--muted);
  font-size: 12px;
}

.table-frame {
  position: relative;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
}

table {
  width: 100%;
  min-width: 1120px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: #46514e;
  background: #f3f6f4;
  font-size: 12px;
  font-weight: 760;
}

td {
  font-size: 14px;
}

tr:last-child td {
  border-bottom: 0;
}

.file-stack,
.link-stack,
.description-stack {
  display: grid;
  min-width: 0;
  gap: 3px;
}

.file-stack strong,
.link-stack a,
.description-stack strong {
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-stack span,
.link-stack span,
.description-stack span {
  color: var(--muted);
  font-size: 12px;
}

.description-stack span {
  max-width: 360px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-stack a {
  color: var(--teal-dark);
  font-weight: 680;
  text-decoration: none;
}

.link-stack a:hover {
  text-decoration: underline;
}

.row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.row-actions .button {
  min-height: 34px;
  padding: 0 10px;
  font-size: 13px;
}

.empty-state {
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  gap: 12px;
  color: var(--muted);
  font-weight: 650;
}

.empty-state.visible {
  display: flex;
}

.empty-state svg {
  width: 42px;
  height: 42px;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 12px 14px;
  border: 1px solid #cde7df;
  border-radius: 8px;
  color: var(--ink);
  background: #ffffff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.login-page {
  display: grid;
  place-items: center;
}

.login-shell {
  width: min(100% - 32px, 420px);
}

.login-panel {
  padding: 24px;
}

.login-brand {
  margin-bottom: 22px;
}

.login-form {
  display: grid;
  gap: 14px;
}

.login-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.login-form input {
  width: 100%;
  min-height: 44px;
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: #ffffff;
}

.login-error {
  min-height: 20px;
  margin-top: 12px;
  color: var(--red);
  font-size: 13px;
}

@media (max-width: 860px) {
  .app-shell {
    width: min(100% - 20px, 760px);
    padding-top: 18px;
  }

  .topbar,
  .workspace {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

  .topbar-tools,
  .metric-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topbar-tools {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 38px;
  }

  .record-tools {
    grid-template-columns: 1fr;
  }

  .workspace {
    display: grid;
  }
}

@media (max-width: 560px) {
  .brand-mark {
    flex-basis: 42px;
    width: 42px;
    height: 42px;
  }

  h1 {
    font-size: 21px;
  }

  .upload-panel,
  .result-panel,
  .records-panel {
    padding: 14px;
  }

  .dropzone {
    grid-template-columns: 1fr;
    gap: 12px;
    min-height: 150px;
  }

  .button-row {
    display: grid;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }
}