frontend/src/styles.css

:root {
  color-scheme: dark;
  --bg: #071014;
  --surface: rgba(247, 252, 252, 0.94);
  --surface-strong: #ffffff;
  --line: rgba(121, 220, 209, 0.24);
  --line-strong: rgba(24, 120, 125, 0.28);
  --ink: #102027;
  --muted: #55707a;
  --cyan: #31d8c6;
  --teal: #0f7b78;
  --blue: #4d8dff;
  --lime: #b5e853;
  --amber: #f4b740;
  --rose: #db4a70;
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  background:
    linear-gradient(90deg, rgba(49, 216, 198, 0.08) 1px, transparent 1px) 0 0 / 58px 58px,
    linear-gradient(rgba(49, 216, 198, 0.06) 1px, transparent 1px) 0 0 / 58px 58px,
    linear-gradient(135deg, rgba(181, 232, 83, 0.12) 0 12%, transparent 12% 48%, rgba(77, 141, 255, 0.11) 48% 61%, transparent 61%),
    var(--bg);
  color: var(--ink);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, transparent 0 36%, rgba(49, 216, 198, 0.08) 36% 37%, transparent 37% 100%),
    linear-gradient(300deg, transparent 0 61%, rgba(181, 232, 83, 0.08) 61% 62%, transparent 62% 100%);
  mask-image: linear-gradient(to bottom, #000, transparent 78%);
}

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  min-height: 38px;
  border: 1px solid rgba(49, 216, 198, 0.45);
  background: linear-gradient(135deg, #0f7b78, #1263a8);
  color: white;
  padding: 10px 15px;
  border-radius: 7px;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  box-shadow: 0 10px 24px rgba(15, 123, 120, 0.26);
}

button:hover:not(:disabled) {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  box-shadow: none;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid #b8d7d6;
  border-radius: 7px;
  padding: 10px 11px;
  background: rgba(255, 255, 255, 0.86);
  color: var(--ink);
  font: inherit;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--teal);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(49, 216, 198, 0.18);
}

textarea {
  min-height: 82px;
  resize: vertical;
}

label {
  display: grid;
  gap: 6px;
  color: #24404a;
  font-size: 13px;
  font-weight: 800;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

th,
td {
  border-bottom: 1px solid rgba(24, 120, 125, 0.16);
  padding: 11px 10px;
  text-align: left;
  vertical-align: top;
}

th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #e9f8f6;
  color: #173942;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0;
}

tbody tr {
  background: rgba(255, 255, 255, 0.7);
}

tbody tr:hover {
  background: rgba(229, 255, 249, 0.86);
}

h2,
h3,
p {
  margin-top: 0;
}

h2,
h3 {
  margin-bottom: 0;
  color: #0b2931;
  line-height: 1.18;
}

.app-shell {
  position: relative;
  min-height: 100vh;
  padding-bottom: 4px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  background: rgba(6, 18, 23, 0.9);
  border-bottom: 1px solid rgba(49, 216, 198, 0.22);
  color: #f6ffff;
  backdrop-filter: blur(18px);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.22);
}

.brand-block {
  display: grid;
  gap: 5px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-weight: 850;
  font-size: 19px;
  line-height: 1.3;
}

.brand-mark {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(49, 216, 198, 0.46);
  border-radius: 8px;
  background: rgba(49, 216, 198, 0.12);
  color: var(--cyan);
}

.topbar p {
  margin: 0;
  color: #a5c6cc;
  font-size: 13px;
}

.topbar-signals {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 9px;
  flex-wrap: wrap;
}

.topbar-signals span,
.count-chip,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  width: fit-content;
  border: 1px solid rgba(49, 216, 198, 0.28);
  border-radius: 999px;
  color: #dffdf8;
  background: rgba(49, 216, 198, 0.1);
  padding: 6px 10px;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(320px, 430px) minmax(0, 1fr);
  gap: 18px;
  padding: 22px 24px 18px;
}

.panel,
.results,
.candidate-detail {
  position: relative;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel::before,
.results::before,
.candidate-detail::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--lime));
}

.panel {
  display: grid;
  gap: 13px;
  align-content: start;
  padding: 18px;
}

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

.panel-heading {
  display: grid;
}

.panel-heading .eyebrow,
.results .eyebrow,
.candidate-detail .eyebrow {
  border-color: rgba(15, 123, 120, 0.24);
  background: rgba(15, 123, 120, 0.08);
  color: #0f6564;
}

.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 9px;
  padding-left: 0;
  list-style: none;
}

.steps li {
  counter-increment: step;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(16, 32, 39, 0.08);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.72);
  padding: 8px 9px;
  color: #496872;
  font-size: 12px;
  font-weight: 800;
}

.steps li::before {
  content: counter(step);
  display: inline-flex;
  width: 21px;
  height: 21px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #e6eff0;
  color: #55707a;
  font-size: 11px;
}

.steps .step-complete {
  border-color: rgba(49, 216, 198, 0.36);
  background: rgba(218, 255, 247, 0.82);
  color: #0f6564;
}

.steps .step-complete::before {
  content: "";
  background: var(--teal);
  box-shadow: inset 0 0 0 6px var(--cyan);
}

.steps .step-active {
  border-color: rgba(244, 183, 64, 0.5);
  background: rgba(255, 247, 224, 0.92);
  color: #725010;
}

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

.status-grid p {
  margin: 0;
  display: grid;
  gap: 5px;
  border: 1px solid rgba(24, 120, 125, 0.16);
  border-radius: 7px;
  padding: 11px;
  background: rgba(255, 255, 255, 0.68);
}

.status-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.status-grid strong {
  color: #0b2931;
  font-size: 20px;
}

.status-pill {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 10px;
  font-size: 12px !important;
  text-transform: uppercase;
  letter-spacing: 0;
}

.status-idle {
  background: #e9eff2;
}

.status-running {
  background: rgba(244, 183, 64, 0.18);
  color: #6d4a00 !important;
}

.status-completed {
  background: rgba(49, 216, 198, 0.18);
  color: #0f6564 !important;
}

.status-failed {
  background: rgba(219, 74, 112, 0.16);
  color: #8a1d3a !important;
}

.results,
.candidate-detail {
  margin: 0 24px 24px;
  padding: 18px;
}

.results {
  overflow-x: auto;
}

.results-heading {
  margin-bottom: 14px;
}

.count-chip {
  flex: 0 0 auto;
  border-color: rgba(181, 232, 83, 0.36);
  background: rgba(181, 232, 83, 0.14);
  color: #325100;
}

.structure-depiction {
  width: 188px;
  min-height: 126px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(24, 120, 125, 0.14);
  border-radius: 7px;
  background:
    linear-gradient(90deg, rgba(15, 123, 120, 0.05) 1px, transparent 1px) 0 0 / 22px 22px,
    linear-gradient(rgba(15, 123, 120, 0.05) 1px, transparent 1px) 0 0 / 22px 22px,
    #ffffff;
}

.structure-button {
  min-height: 126px;
  padding: 8px;
  border-radius: 7px;
  color: inherit;
  box-shadow: none;
}

.structure-depiction svg {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 144px;
}

.structure-depiction img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 144px;
  object-fit: contain;
}

.detail-structure {
  width: min(260px, 100%);
}

.lookup-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.lookup-note {
  margin: 0;
  color: #0f6564;
  font-size: 12px;
  font-weight: 800;
}

.field-note {
  margin: -4px 0 2px;
  color: #4c6570;
  font-size: 12px;
  line-height: 1.45;
}

.reference-preview {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(24, 120, 125, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.66);
  padding: 10px;
}

.reference-preview-heading {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: #31525d;
  font-size: 12px;
  font-weight: 800;
}

.reference-structure {
  width: 100%;
  min-height: 168px;
}

.image-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(3, 10, 13, 0.72);
}

.image-modal {
  width: min(760px, 100%);
  max-height: min(720px, calc(100vh - 48px));
  overflow: auto;
  border: 1px solid rgba(49, 216, 198, 0.28);
  border-radius: 8px;
  background: #f8ffff;
  padding: 18px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.42);
}

.structure-preview {
  display: flex;
  min-height: 360px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(24, 120, 125, 0.16);
  border-radius: 8px;
  background: #ffffff;
  padding: 20px;
}

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

.comparison-grid h4 {
  margin: 0 0 8px;
  color: #193943;
}

.change-note {
  margin: 12px 0 0;
  border-left: 4px solid var(--amber);
  border-radius: 6px;
  background: rgba(244, 183, 64, 0.12);
  color: #5d4308;
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 800;
}

.structure-preview svg,
.structure-preview img {
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: min(520px, 60vh);
  object-fit: contain;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  padding-top: 14px;
  color: #31525d;
  font-size: 13px;
  font-weight: 800;
}

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

.candidate-detail div {
  display: grid;
  gap: 3px;
}

.candidate-detail dt {
  color: var(--muted);
  font-size: 12px;
}

.candidate-detail dd {
  margin: 0;
  font-weight: 800;
}

.mono {
  font-family: Consolas, "SFMono-Regular", monospace;
  max-width: 460px;
  color: #193943;
  word-break: break-all;
}

.error {
  margin-bottom: 0;
  border-left: 4px solid var(--rose);
  border-radius: 6px;
  background: rgba(219, 74, 112, 0.1);
  color: #8a1d3a;
  padding: 10px 12px;
  font-weight: 800;
}

.empty-state {
  color: var(--muted);
  font-weight: 800;
}

.app-footer {
  padding: 0 24px 24px;
  color: #a5c6cc;
  font-size: 13px;
  text-align: right;
}

@media (max-width: 980px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .topbar-signals {
    justify-content: flex-start;
  }

  .workspace {
    grid-template-columns: 1fr;
    padding: 14px;
  }

  .results,
  .candidate-detail {
    margin: 0 14px 14px;
  }
}

@media (max-width: 620px) {
  .topbar {
    padding: 15px;
  }

  .brand {
    font-size: 17px;
  }

  .panel,
  .results,
  .candidate-detail {
    padding: 14px;
  }

  .panel-heading,
  .results-heading,
  .status-grid,
  .candidate-detail dl {
    grid-template-columns: 1fr;
  }

  .results-heading {
    display: grid;
  }

  .steps {
    grid-template-columns: 1fr;
  }

  .pagination {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

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

  .structure-preview {
    min-height: 240px;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
  }

  .app-footer {
    padding: 0 14px 16px;
    text-align: left;
  }
}