/* ──────────────────────────────────────────────────────────────────────────
   EFRI web app — ADMETlab-3.0-inspired palette
   ────────────────────────────────────────────────────────────────────────── */

:root {
  --navy:        #0a3d62;
  --navy-dark:   #082e4a;
  --navy-soft:   #145a8d;
  --bg:          #f4f6f9;
  --panel-bg:    #ffffff;
  --border:      #e1e6ed;
  --text:        #1f2d3d;
  --text-mute:   #5a6b7d;
  --row-alt:     #fafbfc;
  --header-bg:   #f4f6f9;
  --green:       #27ae60;
  --amber:       #f39c12;
  --red:         #c0392b;
  --shadow:      0 1px 2px rgba(10, 61, 98, 0.06);
  --shadow-md:   0 2px 6px rgba(10, 61, 98, 0.10);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* ── Header ─────────────────────────────────────────────────────────────── */
.topbar {
  background: var(--navy);
  color: #fff;
  border-bottom: 3px solid var(--navy-dark);
  padding: 18px 32px;
}
.brand { display: flex; align-items: center; gap: 20px; }
.logo {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: #fff;
  color: var(--navy);
  padding: 6px 14px;
  border-radius: 4px;
}
.title-block .title {
  font-size: 20px;
  font-weight: 600;
}
.title-block .subtitle {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 2px;
}

/* ── Layout ──────────────────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 24px auto;
  padding: 0 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.panel {
  background: var(--panel-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 20px;
  box-shadow: var(--shadow);
}
.panel h2 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 14px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

/* ── Input ───────────────────────────────────────────────────────────────── */
.input-panel label {
  display: block;
  margin-bottom: 8px;
}
#smiles {
  width: 100%;
  font-family: "SF Mono", Consolas, "Courier New", monospace;
  font-size: 13px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  resize: vertical;
  background: #fcfdfe;
}
#smiles:focus {
  outline: none;
  border-color: var(--navy-soft);
  box-shadow: 0 0 0 3px rgba(20, 90, 141, 0.15);
}
.input-actions {
  display: flex;
  gap: 10px;
  margin-top: 12px;
}
.status {
  margin: 10px 0 0;
  font-size: 12px;
  color: var(--text-mute);
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  font: inherit;
  padding: 8px 18px;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.btn:disabled { opacity: 0.55; cursor: not-allowed; }
.btn-primary {
  background: var(--navy);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--navy-dark); }
.btn-secondary {
  background: #fff;
  color: var(--navy);
  border-color: var(--navy);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--navy);
  color: #fff;
}

/* ── Error ───────────────────────────────────────────────────────────────── */
.error-panel {
  border-color: var(--red);
  background: #fdf3f2;
  color: var(--red);
}
.error-panel p { margin: 8px 0 12px; }

/* ── Loading ─────────────────────────────────────────────────────────────── */
.loading-panel {
  text-align: center;
  padding: 36px 20px;
}
.spinner {
  width: 36px;
  height: 36px;
  margin: 0 auto 14px;
  border: 3px solid var(--border);
  border-top-color: var(--navy);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-title { margin: 0; font-weight: 600; color: var(--navy); }
.loading-hint  { margin: 4px 0 0; color: var(--text-mute); font-size: 12px; }

/* ── EFRI Summary ────────────────────────────────────────────────────────── */
.efri-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.efri-header h2 {
  margin: 0;
  border-bottom: none;
  padding-bottom: 0;
}
.cache-tag {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--header-bg);
  color: var(--text-mute);
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid var(--border);
}
.efri-hero {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 14px 0 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 18px;
}
.hero-right {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 16px 20px;
  min-width: 200px;
}
.structure-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 0;
}
#structure-img {
  display: block;
  max-width: 260px;
  height: auto;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 6px;
  cursor: zoom-in;
}
.structure-caption {
  font-size: 11px;
  color: var(--text-mute);
  font-family: "SF Mono", Consolas, monospace;
  max-width: 260px;
  word-break: break-all;
  text-align: center;
}
.risk-badge {
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: var(--header-bg);
  color: var(--text-mute);
}
.risk-badge.risk-low      { background: var(--green); color: #fff; }
.risk-badge.risk-medium   { background: var(--amber); color: #fff; }
.risk-badge.risk-high     { background: var(--red);   color: #fff; }
.risk-badge.risk-unknown  { background: #95a5a6;      color: #fff; }
.overall-block .overall-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}
.overall-block .overall-score {
  font-size: 28px;
  font-weight: 700;
  color: var(--navy);
  font-variant-numeric: tabular-nums;
}

.sub-scores {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.score-card {
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
}
.score-card .score-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-mute);
}
.score-card .score-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--navy);
  margin: 4px 0 8px;
  font-variant-numeric: tabular-nums;
}
.score-bar {
  background: var(--border);
  border-radius: 999px;
  height: 6px;
  overflow: hidden;
}
.score-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  transition: width 0.4s ease;
}
.score-card.risk-low    .score-fill { background: var(--green); }
.score-card.risk-medium .score-fill { background: var(--amber); }
.score-card.risk-high   .score-fill { background: var(--red); }
.score-card.risk-unknown .score-value { color: var(--text-mute); }

.warnings {
  list-style: none;
  padding: 0;
  margin: 16px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.warnings li {
  background: #fdf3f2;
  color: var(--red);
  border: 1px solid #f5c6cb;
  border-radius: 3px;
  padding: 4px 10px;
  font-size: 12px;
}

/* ── Two-column results grid ─────────────────────────────────────────────── */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.section-list { display: flex; flex-direction: column; gap: 8px; }

details.section {
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
details.section > summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 14px;
  background: var(--header-bg);
  font-weight: 600;
  color: var(--navy);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
details.section > summary::-webkit-details-marker { display: none; }
details.section > summary::after {
  content: "▸";
  color: var(--text-mute);
  transition: transform 0.15s;
}
details.section[open] > summary::after {
  transform: rotate(90deg);
}
details.section > .section-body {
  padding: 8px 14px 14px;
  max-height: 320px;
  overflow-y: auto;
}

.data-empty {
  color: var(--text-mute);
  font-style: italic;
  padding: 10px 4px;
}

/* ── Tables ──────────────────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
thead th {
  background: var(--header-bg);
  color: var(--navy);
  text-align: left;
  font-weight: 600;
  padding: 6px 8px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
}
tbody td {
  padding: 6px 8px;
  border-bottom: 1px solid #f0f2f5;
  font-variant-numeric: tabular-nums;
}
tbody tr:nth-child(even) { background: var(--row-alt); }
tbody tr:hover { background: #eef4fa; }

td.num { text-align: right; font-weight: 500; }
td.endpoint { font-family: "SF Mono", Consolas, monospace; font-size: 12px; }
td.uncertainty { color: var(--text-mute); font-size: 12px; }

/* Symbol classification coloring (ADMETlab +/- and DTL high/low) */
.sym {
  display: inline-block;
  padding: 1px 8px;
  border-radius: 3px;
  font-weight: 600;
  font-family: "SF Mono", Consolas, monospace;
}
.sym.sym-high   { background: #fdecea; color: var(--red); }
.sym.sym-medium { background: #fef5e7; color: #b9770e; }
.sym.sym-low    { background: #eafaf1; color: var(--green); }

.value-low    { color: var(--green); font-weight: 600; }
.value-medium { color: #b9770e;       font-weight: 600; }
.value-high   { color: var(--red);    font-weight: 600; }

/* ── Raw JSON panel ──────────────────────────────────────────────────────── */
.raw-panel summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--navy);
  user-select: none;
}
.raw-panel pre {
  background: #1e2a38;
  color: #e1e6ed;
  padding: 14px;
  border-radius: 4px;
  font-size: 12px;
  font-family: "SF Mono", Consolas, monospace;
  overflow-x: auto;
  max-height: 360px;
  margin-top: 12px;
}

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 24px;
  color: var(--text-mute);
  font-size: 12px;
}

/* ── Structure preview modal ──────────────────────────────────────────────── */
.structure-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.structure-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 18, 28, 0.78);
  cursor: zoom-out;
}
#structure-modal-img {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  background: #fff;
  border-radius: 6px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  cursor: default;
}
.structure-modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  transition: background 0.15s;
}
.structure-modal-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .results-grid      { grid-template-columns: 1fr; }
  .sub-scores        { grid-template-columns: 1fr 1fr; }
  .efri-hero         { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .sub-scores        { grid-template-columns: 1fr; }
  .container         { padding: 0 12px; }
  .topbar            { padding: 14px 16px; }
}

/* ──────────────────────────────────────────────────────────────────────────
   撤市原因预测模块
   ────────────────────────────────────────────────────────────────────────── */
.reason-summary {
  margin-bottom: 1rem;
  border-left: 4px solid var(--indigo, #6366f1);
  background: linear-gradient(180deg, #fafaff 0%, #ffffff 100%);
}

.reason-summary .reason-header {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin-bottom: 0.8rem;
}

.reason-summary .reason-header .reason-sub {
  font-size: 0.85rem;
  color: #6b7280;
  font-weight: 400;
}

.reason-summary .reason-body {
  display: grid;
  grid-template-columns: minmax(180px, 0.9fr) 2fr;
  gap: 1.25rem;
  align-items: center;
}

.reason-summary .reason-hero {
  text-align: left;
}

.reason-summary .reason-predicted {
  font-size: 1.5rem;
  font-weight: 700;
  color: #4338ca;
  line-height: 1.15;
  margin-bottom: 0.3rem;
}

.reason-summary .reason-confidence {
  font-size: 0.85rem;
  color: #6b7280;
}

.reason-summary .reason-bars {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.reason-summary .reason-row {
  display: grid;
  grid-template-columns: 7.5rem 1fr 4rem;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.92rem;
}

.reason-summary .reason-row .reason-label {
  color: #374151;
  font-weight: 500;
}

.reason-summary .reason-row .reason-bar {
  height: 10px;
  background: #f3f4f6;
  border-radius: 5px;
  overflow: hidden;
}

.reason-summary .reason-row .reason-bar-fill {
  height: 100%;
  background: #6366f1;
  border-radius: 5px;
  width: 0;
  transition: width 0.5s ease-out;
}

.reason-summary .reason-row.is-top .reason-bar-fill {
  background: #4338ca;
}
.reason-summary .reason-row.is-top .reason-label {
  font-weight: 700;
  color: #1f2937;
}

.reason-summary .reason-row .reason-value {
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: #1f2937;
  font-weight: 600;
}

.reason-summary .reason-meta {
  grid-column: 1 / -1;
  margin-top: 0.6rem;
  padding-top: 0.6rem;
  border-top: 1px dashed #e5e7eb;
  font-size: 0.78rem;
  color: #6b7280;
}

@media (max-width: 700px) {
  .reason-summary .reason-body {
    grid-template-columns: 1fr;
  }
}