:root {
  --bg: #08090B;
  --panel: #111318;
  --border: #22252B;
  --hi: #C9C6BD;
  --lo: #83868D;
  --lo2: #52555C;
  --accent: #4FA8A0;
  --accent-hover: #5DBAB1;
  --onaccent: #08090B;
  --danger: #D9714E;
  --success: #5FAE7A;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--hi);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.mono { font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace; }

button {
  font-family: inherit;
  cursor: pointer;
}
input, select {
  font-family: inherit;
}

/* ---------- Login ---------- */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-box {
  width: 100%;
  max-width: 380px;
}
.login-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}
.login-logo .badge {
  width: 32px; height: 32px;
  border-radius: 4px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  color: var(--onaccent);
  font-weight: 700;
}
.login-logo .title {
  font-family: "SFMono-Regular", Consolas, monospace;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 14px;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 24px;
}
.login-card .eyebrow {
  display: flex; align-items: center; gap: 6px;
  color: var(--lo);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 11px;
  font-family: monospace;
  margin-bottom: 4px;
}
.login-card p.lead {
  font-size: 14px;
  margin: 0 0 20px;
}
.field { margin-bottom: 12px; }
.field label {
  display: block;
  font-size: 11px;
  color: var(--lo);
  font-family: monospace;
  margin-bottom: 4px;
}
.input-wrap {
  display: flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 12px;
}
.input-wrap:focus-within { border-color: var(--accent); }
.input-wrap input {
  border: none;
  background: transparent;
  outline: none;
  color: var(--hi);
  font-size: 14px;
  width: 100%;
}
.input-wrap input::placeholder { color: var(--lo2); }
.btn-primary {
  width: 100%;
  background: var(--accent);
  color: var(--onaccent);
  border: none;
  font-weight: 600;
  font-size: 14px;
  border-radius: 4px;
  padding: 10px;
  margin-top: 8px;
}
.btn-primary:hover { background: var(--accent-hover); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.error-text { color: var(--danger); font-size: 12px; margin: 4px 0 0; }
.security-note {
  display: flex; align-items: center; gap: 6px;
  color: var(--lo2);
  border-top: 1px solid var(--border);
  margin-top: 16px; padding-top: 16px;
  font-size: 10px;
  font-family: monospace;
}

/* ---------- Top bar ---------- */
.topbar {
  border-bottom: 1px solid var(--border);
  background: var(--panel);
}
.topbar-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
}
@media (min-width: 640px) { .topbar-inner { padding: 12px 24px; } }
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-left .badge {
  width: 28px; height: 28px;
  border-radius: 4px;
  background: var(--accent);
  display: flex; align-items: center; justify-content: center;
  color: var(--onaccent);
  font-weight: 700;
  flex-shrink: 0;
}
.topbar-left .title {
  font-family: monospace;
  font-size: 12px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.topbar-search {
  flex: 1; max-width: 320px;
  display: none;
}
@media (min-width: 640px) { .topbar-search { display: block; } }
.topbar-search .input-wrap { padding: 6px 10px; }
.topbar-search input { font-size: 12px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.view-toggle {
  display: flex; align-items: center;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px;
}
.view-toggle button {
  display: flex; align-items: center; gap: 6px;
  background: transparent;
  border: none;
  color: var(--lo);
  font-family: monospace;
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 4px;
}
.view-toggle button.active { background: var(--accent); color: var(--onaccent); }
.view-toggle button:hover:not(.active) { color: var(--hi); }
.icon-btn {
  background: none; border: none; color: var(--lo); padding: 6px;
  display: flex; align-items: center;
}
.icon-btn:hover { color: var(--hi); }
.icon-btn.danger:hover { color: var(--danger); }
.user-chip { text-align: right; display: none; }
@media (min-width: 640px) { .user-chip { display: block; } }
.user-chip .name { font-size: 12px; font-family: monospace; line-height: 1; }
.user-chip .role { font-size: 10px; color: var(--accent); font-family: monospace; text-transform: uppercase; letter-spacing: 0.08em; margin-top: 2px; }

/* ---------- Error banner ---------- */
.error-banner {
  margin: 12px 16px 0;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 12px;
  display: flex; align-items: center; gap: 8px;
}
@media (min-width: 640px) { .error-banner { margin: 12px 24px 0; } }
.error-banner span { color: var(--danger); font-size: 12px; flex: 1; }

/* ---------- Summary + board ---------- */
.summary-row {
  display: flex; flex-wrap: wrap; gap: 12px;
  padding: 16px 16px 0;
}
@media (min-width: 640px) { .summary-row { padding: 16px 24px 0; } }
.chip {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px 12px;
}
.chip .label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--lo); font-family: monospace; }
.chip .value { font-size: 14px; font-family: monospace; margin-top: 2px; }
.chip .value.accent { color: var(--accent); }
.btn-accent {
  background: var(--accent);
  color: var(--onaccent);
  border: none;
  font-size: 12px;
  font-weight: 500;
  border-radius: 4px;
  padding: 8px 12px;
  display: flex; align-items: center; gap: 6px;
  margin-left: auto;
}
.btn-accent:hover { background: var(--accent-hover); }

.board-scroll {
  padding: 16px;
  overflow-x: auto;
}
@media (min-width: 640px) { .board-scroll { padding: 16px 24px; } }
.board-row { display: flex; gap: 12px; min-width: max-content; padding-bottom: 16px; }
.column { width: 256px; flex-shrink: 0; }
.column-header {
  display: flex; align-items: center; gap: 6px;
  margin-bottom: 8px; padding: 0 4px;
}
.column-header .dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; }
.column-header .label {
  font-size: 12px; font-family: monospace; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--lo);
  background: none; border: none; cursor: pointer;
  display: flex; align-items: center; gap: 4px;
}
.column-header .label input {
  background: var(--bg); border: 1px solid var(--accent); border-radius: 2px;
  color: var(--hi); font-family: monospace; font-size: 12px; padding: 0 2px;
}
.column-header .count { font-size: 10px; font-family: monospace; color: var(--lo2); }
.column-actions { margin-left: auto; display: flex; align-items: center; gap: 2px; opacity: 0; transition: opacity 0.15s; }
.column:hover .column-actions { opacity: 1; }
.column-actions button { background: none; border: none; color: var(--lo2); padding: 2px; }
.column-actions button:hover { color: var(--hi); }
.column-actions button.danger:hover { color: var(--danger); }
.column-actions button:disabled { opacity: 0.2; cursor: default; }
.column-actions .confirm { font-size: 10px; font-family: monospace; color: var(--danger); text-decoration: underline; }

.units-list { display: flex; flex-direction: column; gap: 8px; }
.unit-empty {
  border: 1px dashed var(--border); border-radius: 4px; padding: 12px; text-align: center;
}
.unit-empty span { font-size: 10px; color: var(--lo2); font-family: monospace; }

.unit-card {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 12px;
  position: relative;
  overflow: hidden;
}
.unit-card:hover { border-color: rgba(79,168,160,0.6); }
.unit-card .edge {
  position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: linear-gradient(to bottom, var(--border), rgba(79,168,160,0.4), var(--border));
}
.unit-card .content { padding-left: 8px; }
.unit-card .top-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.unit-card .code { font-family: monospace; font-size: 10px; color: var(--lo2); letter-spacing: 0.05em; }
.unit-card .meta-right { display: flex; align-items: center; gap: 4px; }
.unit-card .date { font-family: monospace; font-size: 10px; color: var(--lo2); }
.unit-card .del-btn { background: none; border: none; color: var(--lo2); opacity: 0; transition: opacity 0.15s; }
.unit-card:hover .del-btn { opacity: 1; }
.unit-card .del-btn:hover { color: var(--danger); }
.unit-card .title-btn { background: none; border: none; text-align: left; width: 100%; padding: 0; }
.unit-card .brand-model { font-size: 14px; font-weight: 500; line-height: 1.2; color: var(--hi); }
.unit-card .serial { color: var(--lo); font-size: 12px; font-family: monospace; margin-top: 2px; }
.unit-card .bottom-row { display: flex; align-items: center; justify-content: space-between; margin-top: 10px; }
.unit-card .tech { font-size: 10px; color: var(--lo); font-family: monospace; }
.unit-card .margin { font-size: 12px; font-family: monospace; }
.unit-card .margin.pos { color: var(--success); }
.unit-card .margin.neg { color: var(--danger); }
.unit-card .margin.neutral { color: var(--lo); }

.add-column-btn {
  width: 256px; flex-shrink: 0;
  min-height: 100px;
  border: 1px dashed var(--border);
  border-radius: 4px;
  background: none;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px;
  color: var(--lo2);
}
.add-column-btn:hover { color: var(--accent); border-color: rgba(79,168,160,0.6); }
.add-column-btn span { font-size: 10px; font-family: monospace; }

#unit-notes, #unit-links {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 8px;
  color: var(--hi);
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}
#unit-notes:focus, #unit-links:focus { outline: none; border-color: var(--accent); }

.unit-card .notes-preview {
  color: var(--lo);
  font-size: 11px;
  margin-top: 4px;
  line-height: 1.3;
}
.links-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 6px;
}
.link-chip {
  font-size: 10px;
  font-family: monospace;
  color: var(--accent);
  background: rgba(79,168,160,0.1);
  border: 1px solid rgba(79,168,160,0.3);
  border-radius: 3px;
  padding: 2px 6px;
  text-decoration: none;
}
.link-chip:hover { background: rgba(79,168,160,0.2); }

.drag-handle {
  cursor: grab;
  color: var(--lo2);
  font-size: 14px;
  user-select: none;
  flex-shrink: 0;
}
.drag-handle:active { cursor: grabbing; }

.archived-section {
  margin: 0 16px 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel);
  overflow: hidden;
}
@media (min-width: 640px) { .archived-section { margin: 0 24px 24px; } }
.archived-header {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  font-size: 12px; font-family: monospace; color: var(--lo);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.archived-list { max-height: 320px; overflow-y: auto; }
.archived-row {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
}
.archived-row:last-child { border-bottom: none; }
.archived-row:hover { background: var(--bg); }
.archived-row .a-code { color: var(--lo2); font-size: 11px; width: 64px; flex-shrink: 0; }
.archived-row .a-name { flex: 1; font-size: 13px; }
.archived-row .a-serial { color: var(--lo); font-size: 11px; width: 130px; flex-shrink: 0; }
.archived-row .a-date { color: var(--lo2); font-size: 11px; width: 70px; flex-shrink: 0; }
.archived-row .a-price { color: var(--success); font-size: 12px; width: 90px; text-align: right; flex-shrink: 0; }

/* ---------- Modals ---------- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex; align-items: center; justify-content: center;
  z-index: 30;
  padding: 24px;
}
.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  width: 100%;
  max-width: 420px;
  max-height: 85vh;
  overflow-y: auto;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px; border-bottom: 1px solid var(--border);
}
.modal-header h3 { margin: 0; font-size: 14px; font-weight: 500; }
.modal-body { padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.modal-body label.section-label {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--lo);
  font-family: monospace; display: block; margin-bottom: 8px;
}
.status-pills { display: flex; flex-wrap: wrap; gap: 6px; }
.status-pill {
  padding: 4px 8px; border-radius: 4px; font-size: 11px; font-family: monospace;
  border: 1px solid var(--border); background: transparent; color: var(--lo);
}
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; font-size: 14px; }
.editable-field {
  background: none; border: none; text-align: left; color: inherit; font: inherit; padding: 0;
  display: flex; align-items: center; gap: 4px;
}
.editable-field input {
  background: var(--bg); border: 1px solid var(--accent); border-radius: 2px; padding: 0 4px; color: var(--hi); font: inherit;
}
.fin-box { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 12px; display: flex; flex-direction: column; gap: 8px; }
.fin-box .fin-title { display: flex; align-items: center; gap: 6px; font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--lo); font-family: monospace; }
.fin-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.fin-row span.label { font-size: 12px; color: var(--lo); }
.fin-row input {
  background: transparent; border: none; border-bottom: 1px solid transparent;
  text-align: right; font-size: 12px; font-family: monospace; color: var(--hi); width: 110px;
}
.fin-row input:focus { outline: none; border-bottom-color: var(--accent); }
.margin-row { padding-top: 6px; margin-top: 6px; border-top: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.margin-row .val { font-size: 12px; font-family: monospace; color: var(--accent); font-weight: 600; }
.locked-box { background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 12px; display: flex; align-items: center; gap: 8px; }
.locked-box p { font-size: 12px; color: var(--lo2); margin: 0; }
.delete-row { border-top: 1px solid var(--border); padding-top: 12px; }
.delete-btn { background: none; border: none; color: var(--lo); font-size: 12px; display: flex; align-items: center; gap: 6px; }
.delete-btn:hover { color: var(--danger); }
.confirm-delete { display: flex; align-items: center; gap: 8px; }
.confirm-delete span { color: var(--danger); font-size: 12px; flex: 1; }
.confirm-delete .btn-confirm { background: var(--danger); color: var(--onaccent); border: none; font-size: 12px; font-family: monospace; border-radius: 4px; padding: 4px 8px; }
.confirm-delete .btn-cancel { background: none; border: none; color: var(--lo); font-size: 12px; font-family: monospace; padding: 4px 8px; }

.form-field { margin-bottom: 12px; }
.form-field label { display: block; font-size: 11px; color: var(--lo); font-family: monospace; margin-bottom: 4px; }
.form-field input, .form-field select {
  width: 100%; background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: 8px 12px; font-size: 14px; color: var(--hi); outline: none;
}
.form-field input:focus, .form-field select:focus { border-color: var(--accent); }
.form-field input::placeholder { color: var(--lo2); }

.user-row {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg); border: 1px solid var(--border); border-radius: 4px;
  padding: 8px 12px; margin-bottom: 8px;
}
.user-row .uname { font-size: 13px; font-family: monospace; }
.user-row .uname .you { color: var(--lo2); font-size: 10px; }
.user-row .actions { display: flex; align-items: center; gap: 8px; }
.user-row select {
  background: var(--panel); border: 1px solid var(--border); border-radius: 4px;
  font-size: 11px; font-family: monospace; padding: 4px 8px; color: var(--hi);
}
.add-user-form { border-top: 1px solid var(--border); padding: 16px; display: flex; flex-direction: column; gap: 8px; }
.add-user-form .row { display: flex; align-items: center; gap: 8px; }
.add-user-form input, .add-user-form select {
  background: var(--bg); border: 1px solid var(--border); border-radius: 4px; padding: 8px 12px;
  font-size: 14px; color: var(--hi);
}
.add-user-form input { flex: 1; }
.add-user-form .submit-btn { background: var(--accent); color: var(--onaccent); border: none; border-radius: 4px; padding: 8px; display: flex; align-items: center; }
.footnote { padding: 0 16px 16px; font-size: 10px; color: var(--lo2); font-family: monospace; }

/* ---------- Stats ---------- */
.stats-page { padding: 24px 16px; display: flex; flex-direction: column; gap: 24px; }
@media (min-width: 640px) { .stats-page { padding: 24px; } }
.kpi-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (min-width: 1024px) { .kpi-grid { grid-template-columns: repeat(4, 1fr); } }
.kpi-card { background: var(--panel); border: 1px solid var(--border); border-radius: 4px; padding: 16px; }
.kpi-card .head { display: flex; align-items: center; gap: 6px; margin-bottom: 8px; color: var(--lo); font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; font-family: monospace; }
.kpi-card .val { font-size: 20px; font-family: monospace; font-weight: 600; }
.kpi-card .val.accent { color: var(--accent); }
.kpi-card .sub { font-size: 10px; color: var(--lo2); font-family: monospace; margin-top: 4px; }
.charts-grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
@media (min-width: 1024px) { .charts-grid { grid-template-columns: 2fr 1fr; } }
.chart-box { background: var(--panel); border: 1px solid var(--border); border-radius: 4px; padding: 16px; }
.chart-box .chart-title { font-size: 10px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--lo); font-family: monospace; margin-bottom: 12px; }
.chart-box canvas { max-height: 220px; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 8px; justify-content: center; }
.chart-legend .item { display: flex; align-items: center; gap: 4px; font-size: 10px; color: var(--lo2); font-family: monospace; }
.chart-legend .dot { width: 6px; height: 6px; border-radius: 50%; }
.stats-note { font-size: 10px; color: var(--lo2); font-family: monospace; text-align: center; }
.empty-note { font-size: 12px; color: var(--lo2); font-family: monospace; text-align: center; padding: 32px 0; }

.loading-screen {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
}
.loading-screen span { color: var(--lo); font-family: monospace; font-size: 12px; }