/* EPM Tools — KPR design system (navy + mint), dark default with light override. */

:root {
  --bg: #0a0e1a;
  --bg-hero: #141a33;
  --panel: #131a2e;
  --panel-2: #1c243d;
  --panel-3: #232d4b;
  --line: #242e4a;
  --border-2: #313d5e;
  --accent: #00d4a4;
  --accent-hover: #00e5b1;
  --accent-2: #7c3aed;
  --accent-dim: #00b393;
  --accent-glow: rgba(0, 212, 164, 0.35);
  --text: #f5f7fa;
  --text-2: #c9d1e0;
  --muted: #7a869e;
  --danger: #ff5674;
  --warn: #f5c34a;
  --info: #7dd3fc;
  --ok: #7ee0a1;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --radius: 10px;
  --font: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, "SF Mono", Consolas, "Cascadia Mono", monospace;
}

[data-theme="light"] {
  --bg: #f5f7fa;
  --bg-hero: #e9ecf5;
  --panel: #ffffff;
  --panel-2: #f0f2f6;
  --panel-3: #e5e8ee;
  --line: #d5dae2;
  --border-2: #c1c8d3;
  --accent: #00a884;
  --accent-hover: #00b893;
  --accent-dim: #00b893;
  --accent-glow: rgba(0, 168, 132, 0.25);
  --text: #1a2340;
  --text-2: #4a5468;
  --muted: #6a7688;
  --shadow: 0 6px 18px rgba(20, 30, 60, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.5;
  min-height: 100vh;
}

body {
  padding: 32px 20px 80px;
  padding-top: calc(env(safe-area-inset-top) + 32px);
  -webkit-tap-highlight-color: transparent;
}

.app {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
header.brand {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
header.brand h1 {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  flex: 1;
  min-width: 0;
}
header.brand h1 .accent { color: var(--accent); }
header.brand .tagline {
  color: var(--muted);
  font-size: 12px;
  margin-top: 2px;
  display: block;
  font-weight: 400;
  letter-spacing: 0;
}
.header-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  /* leave room for kpr-core account button (top-right, ~48px) */
  margin-right: 56px;
}
.icon-btn {
  width: 36px; height: 36px; padding: 0;
  background: var(--panel); color: var(--text-2);
  border: 1px solid var(--line); border-radius: 999px;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; font-size: 15px; line-height: 1;
  transition: color 120ms, border-color 120ms, background 120ms;
}
.icon-btn:hover { color: var(--text); border-color: var(--border-2); background: var(--panel-2); }
.icon-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  padding: 4px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  flex: 1;
  min-width: max-content;
  background: transparent;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: color 120ms, background 120ms;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active {
  background: var(--accent);
  color: #0a1a12;
}
[data-theme="light"] .tab.active { color: #ffffff; }
.tab:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.tab-panel { display: none; flex-direction: column; gap: 20px; }
.tab-panel.active { display: flex; }

/* Panels */
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.panel-head h2 {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}
.panel-desc {
  color: var(--muted);
  font-size: 12px;
  margin: 0 0 10px;
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-2);
  border-radius: var(--radius);
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  background: var(--panel);
  transition: border-color 120ms, background 120ms;
}
.dropzone:hover, .dropzone.drop-active {
  border-color: var(--accent);
  background: var(--panel-2);
}
.dz-title { font-size: 15px; font-weight: 500; }
.dz-hint { color: var(--muted); font-size: 12px; margin-top: 4px; }

/* File list */
.file-list-empty {
  color: var(--muted);
  font-size: 13px;
  padding: 6px 4px;
}
.file-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 6px;
  transition: background 120ms;
}
.file-row + .file-row { margin-top: 2px; }
.file-row:hover { background: var(--panel-2); }
.file-row.done { background: rgba(0, 212, 164, 0.10); }
.file-row.error { background: rgba(255, 86, 116, 0.10); }
.file-row.processing { background: rgba(0, 212, 164, 0.06); }
.file-name { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-meta { color: var(--muted); font-size: 12px; font-family: var(--mono); }
.file-row.error .file-meta { color: var(--danger); }

.x-btn {
  background: transparent;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  line-height: 1;
  font-size: 14px;
}
.x-btn:hover { background: var(--panel-3); color: var(--text); }

/* Options grid */
.opts-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}
.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.field-label {
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
label.check {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  color: var(--text);
  font-size: 14px;
  padding: 4px 0;
}
label.check input { accent-color: var(--accent); }
.formats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin-top: 2px;
}

/* Inputs */
input[type="text"], select {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  width: 100%;
  font-weight: 500;
}
input[type="text"]:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 212, 164, 0.15);
}

/* Buttons */
.action-bar {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}
button.primary, button.ghost {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 120ms, border-color 120ms, transform 120ms;
}
button.primary {
  background: var(--accent);
  color: #0a1a12;
  border-color: var(--accent);
  box-shadow: 0 6px 18px var(--accent-glow);
}
[data-theme="light"] button.primary { color: #ffffff; }
button.primary:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  transform: translateY(-1px);
}
button.ghost:hover:not(:disabled) { background: var(--panel-3); border-color: var(--border-2); }
button:disabled { opacity: 0.5; cursor: not-allowed; box-shadow: none; }
button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Log */
.log {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  max-height: 200px;
  overflow-y: auto;
  white-space: pre-wrap;
}
.log-line { padding: 1px 0; }
.log-ok { color: var(--ok); }
.log-warn { color: var(--warn); }
.log-err { color: var(--danger); }
.log-info { color: var(--info); }

/* Preview / tables */
.preview-empty {
  color: var(--muted);
  font-size: 13px;
  padding: 8px 4px;
}
.preview-heading {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
  font-weight: 600;
}
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 6px;
}
table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  font-family: var(--mono);
}
table.data th, table.data td {
  padding: 6px 10px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.data tr:last-child td { border-bottom: none; }
table.data th {
  background: var(--panel-2);
  color: var(--muted);
  font-weight: 600;
  position: sticky;
  top: 0;
}
table.data td { color: var(--text); }

.warnings {
  margin-top: 14px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}
.warnings-title {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  font-weight: 600;
}
.warn-line {
  font-size: 12px;
  padding: 3px 0;
  color: var(--muted);
}
.warn-line.warning { color: var(--warn); }
.warn-line.info { color: var(--info); }

/* Report (verifier) */
.report {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  max-height: 500px;
  overflow: auto;
  white-space: pre;
}
.report-pass { color: var(--ok); font-weight: 700; }
.report-fail { color: var(--danger); font-weight: 700; }

/* Single-file picker rows (converter/verifier) */
.picker-row {
  display: grid;
  grid-template-columns: 120px 1fr auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}
.picker-row label {
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.picker-row .path {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 12px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.picker-row .path.empty { color: var(--muted); font-style: italic; }
.picker-row button {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
}
.picker-row button:hover { border-color: var(--border-2); background: var(--panel-3); }

.status-line {
  font-size: 12px;
  color: var(--muted);
  padding: 6px 0;
  min-height: 20px;
}
.status-line.ok { color: var(--ok); }
.status-line.fail { color: var(--danger); }

/* About modal */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 99998;
}
.modal-overlay.open { display: flex; }
.modal-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  max-width: 460px;
  width: 100%;
  color: var(--text);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.modal-card h2 { margin: 0 0 12px; font-size: 20px; font-weight: 700; }
.modal-card p { margin: 0 0 12px; color: var(--text-2); font-size: 14px; line-height: 1.6; }
.modal-card ul { margin: 0 0 12px; padding-left: 20px; color: var(--text-2); font-size: 14px; }
.modal-card li { margin: 4px 0; }
.modal-card .modal-close {
  margin-top: 8px;
  background: var(--accent);
  color: #0a1a12;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
}
[data-theme="light"] .modal-card .modal-close { color: #ffffff; }

.footer {
  color: var(--muted);
  font-size: 11px;
  text-align: center;
  margin-top: 8px;
}

/* Mobile */
@media (max-width: 720px) {
  body { padding: 20px 14px 100px; padding-top: calc(env(safe-area-inset-top) + 20px); }
  header.brand { flex-wrap: wrap; }
  header.brand h1 { font-size: 20px; }
  .header-actions { margin-right: 48px; }
  .opts-grid { grid-template-columns: 1fr; gap: 12px; }
  .picker-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .picker-row label { margin-bottom: 2px; }
  .panel { padding: 14px; }
  .action-bar { justify-content: stretch; }
  .action-bar button { flex: 1; }
}

/* Narrow phones: full labels ("Hierarchy Arranger", "Entity Converter",
   "Entity Verifier") don't fit — the third tab was being clipped with no
   scroll cue. Drop the redundant leading word so all three fit inline. */
@media (max-width: 480px) {
  .tab .tab-long { display: none; }
  .tab { padding: 9px 12px; }
}