:root {
  --primary: #2952CC;
  --primary-dark: #1F3FA0;
  --primary-tint: #E8EEFC;
  --accent: #16A085;
  --accent-tint: #E4F5F0;
  --danger: #D9432B;
  --danger-tint: #FBE7E3;
  --warning: #B7791F;
  --warning-tint: #FCF1DC;
  --bg: #F4F6F9;
  --surface: #FFFFFF;
  --text: #1B2430;
  --text-soft: #5B6472;
  --line: #E1E5EB;
  --sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, monospace;
  --sidebar-width: 224px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
}

.el-page { min-height: 100vh; }

.el-input, select.el-input {
  height: 34px;
  border-radius: 6px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 0 10px;
  font-size: 13px;
  color: var(--text);
  font-family: var(--sans);
}
.el-input:focus { outline: 2px solid var(--primary); outline-offset: 1px; }
.el-mono { font-family: var(--mono); }
.el-label { font-size: 12px; font-weight: 600; color: var(--text-soft); }

.el-btn {
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px; font-size: 12.5px; font-weight: 600; cursor: pointer;
  border: 1px solid transparent; padding: 7px 14px;
}
.el-btn[hidden] { display: none; }
.el-btn:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }
.el-btn-primary { background: var(--primary); color: #fff; font-weight: 700; }
.el-btn-primary:hover { background: var(--primary-dark); }
.el-btn-ghost { background: transparent; color: var(--text-soft); border-color: var(--line); }
.el-btn-ghost:hover { background: var(--bg); }

.el-link-btn {
  background: none; border: none; padding: 0; color: var(--primary); font-size: 12.5px;
  font-weight: 600; cursor: pointer; text-decoration: none;
}
.el-link-btn:hover { text-decoration: underline; }
.el-btn-dark { background: var(--text); color: #fff; padding: 8px 14px; }

.el-error { color: var(--danger); font-size: 12px; margin-top: 8px; }

/* --- Login --- */
.el-login-card {
  max-width: 340px; margin: 12vh auto 0; background: var(--surface);
  border: 1px solid var(--line); border-radius: 12px; padding: 28px 26px;
  box-shadow: 0 1px 3px rgba(27,36,48,.06);
}
.el-login-logo { width: -webkit-fill-available; width: -moz-available; width: stretch; height: auto; display: block; margin: 0 auto 14px; object-fit: contain; }
.el-login-title { font-family: var(--sans); font-size: 22px; font-weight: 700; margin: 0 0 4px; }
.el-login-sub { font-size: 13px; color: var(--text-soft); margin: 0 0 18px; }
.el-demo-accounts { margin-top: 22px; border-top: 1px dashed var(--line); padding-top: 14px; }
.el-demo-title { font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-soft); font-weight: 600; margin-bottom: 8px; }
.el-demo-btn {
  display: flex; justify-content: space-between; align-items: center; width: 100%;
  background: var(--surface); border: 1px solid var(--line); border-radius: 6px;
  padding: 8px 10px; font-size: 12.5px; font-weight: 600; color: var(--text);
  cursor: pointer; margin-bottom: 6px;
}
.el-demo-btn:hover { background: var(--bg); }
.el-demo-email { font-family: var(--mono); font-weight: 400; color: var(--text-soft); font-size: 11.5px; }

/* --- App shell: sidebar + main --- */
.el-shell { display: flex; min-height: 100vh; }

.el-sidebar {
  width: var(--sidebar-width); flex-shrink: 0; background: var(--surface);
  border-right: 1px solid var(--line); display: flex; flex-direction: column;
  position: sticky; top: 0; height: 100vh;
}
.el-sidebar-brand {
  display: flex; flex-direction: column; align-items: flex-start; gap: 6px; padding: 16px;
  border-bottom: 1px solid var(--line);
}
.el-sidebar-brand span { font-weight: 700; font-size: 13px; color: var(--text-soft); }
.el-sidebar-logo-img { width: -webkit-fill-available; width: -moz-available; width: stretch; height: auto; object-fit: contain; }
.el-sidebar-nav { flex: 1; padding: 10px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.el-nav-item {
  display: flex; align-items: center; gap: 10px; text-align: left; width: 100%;
  background: transparent; border: none; border-radius: 7px; padding: 9px 10px;
  font-size: 13px; font-weight: 600; color: var(--text-soft); cursor: pointer;
}
.el-nav-item[hidden] { display: none; }
.el-nav-item:hover { background: var(--bg); color: var(--text); }
.el-nav-item.active { background: var(--primary-tint); color: var(--primary); }
.el-nav-icon { font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }
.el-sidebar-footer { padding: 14px; border-top: 1px solid var(--line); }
.el-account-name { font-size: 13px; font-weight: 600; }
.el-account-role { font-size: 11px; color: var(--text-soft); text-transform: uppercase; letter-spacing: .05em; }

.el-sidebar-backdrop { position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 90; }

.el-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.el-topbar {
  display: flex; align-items: center; gap: 12px; padding: 14px 24px;
  border-bottom: 1px solid var(--line); background: var(--surface);
  position: sticky; top: 0; z-index: 10;
}
.el-mobile-menu-btn {
  display: none; align-items: center; justify-content: center;
  background: transparent; border: 1px solid var(--line); border-radius: 7px;
  width: 34px; height: 34px; font-size: 16px; cursor: pointer; flex-shrink: 0; color: var(--text);
}
.el-eyebrow { font-size: 11px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-soft); font-weight: 600; }
.el-subtitle { font-size: 12.5px; color: var(--text-soft); margin-top: 2px; font-family: var(--mono); }

.el-content { padding: 20px 24px 60px; max-width: 1000px; }

.el-account { display: flex; align-items: center; gap: 12px; }

.el-admin-banner {
  display: flex; align-items: center; gap: 8px; background: var(--primary-tint); color: var(--primary-dark);
  border: 1px solid var(--primary); border-radius: 7px; padding: 9px 12px; font-size: 12.5px; margin-bottom: 16px;
}
.el-admin-banner[hidden] { display: none; }

.el-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; margin-bottom: 10px; }
.el-toolbar-filters { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.el-toolbar-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.el-checkbox-label { display: flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--text-soft); }
.el-checkbox-label[hidden] { display: none; }
.el-textarea { font-family: var(--sans); padding: 6px 10px; height: auto; resize: vertical; }

.el-add-form, .el-modal-card { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; padding: 14px; }
.el-add-form { margin-bottom: 14px; }
.el-add-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.el-form-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

.el-row-grid {
  display: grid; grid-template-columns: 70px 1fr 110px 110px; align-items: center; column-gap: 12px;
}
.el-col-header {
  font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--text-soft);
  font-weight: 600; padding: 0 10px 8px; border-bottom: 1px solid var(--line);
}

.el-entry { border-bottom: 1px solid var(--line); }
.el-entry-row { padding: 12px 10px; }
.el-date-cell { font-family: var(--mono); font-size: 12.5px; color: var(--text-soft); }
.el-desc-line { font-size: 14px; font-weight: 500; display: flex; align-items: center; flex-wrap: wrap; gap: 4px; }
.el-meta-line { font-size: 12px; color: var(--text-soft); margin-top: 2px; }
.el-settle-line { font-size: 11.5px; color: var(--accent); margin-top: 2px; font-family: var(--mono); }
.el-edited-tag {
  display: inline-flex; align-items: center; gap: 3px; background: var(--warning-tint); color: var(--warning);
  border: none; border-radius: 4px; padding: 1px 7px; font-size: 10.5px; font-weight: 600; cursor: pointer;
}
.el-edit-meta { font-size: 10px; color: var(--text-soft); font-family: var(--mono); margin-left: 2px; }
.el-entry.deleted { opacity: 0.6; background: var(--bg); }
.el-entry.deleted .el-desc-line { text-decoration: line-through; text-decoration-color: var(--danger); }
.el-deleted-tag {
  display: inline-flex; align-items: center; gap: 3px; background: var(--danger-tint); color: var(--danger);
  border: none; border-radius: 4px; padding: 1px 7px; font-size: 10.5px; font-weight: 600;
}
.el-restore-btn {
  background: transparent; border: 1px solid var(--line); border-radius: 4px; color: var(--text-soft);
  font-size: 10.5px; font-weight: 600; padding: 3px 8px; cursor: pointer; margin-top: 4px;
}
.el-restore-btn:hover { background: rgba(0,0,0,.05); }
.el-history-reason { font-size: 11.5px; color: var(--text-soft); font-style: italic; margin-top: 3px; }
.el-amount { font-family: var(--mono); font-size: 14px; font-weight: 600; text-align: right; color: var(--text); }
.el-amount.settled { color: var(--accent); }
.el-actions { display: flex; justify-content: flex-end; gap: 4px; }
.el-icon-btn {
  display: flex; align-items: center; justify-content: center; width: 28px; height: 28px;
  background: transparent; border: none; border-radius: 6px; cursor: pointer; color: var(--text-soft); font-size: 15px;
}
.el-icon-btn-auto { width: auto; padding: 0 6px; font-size: 12px; gap: 2px; }

.el-receipts-panel { background: var(--bg); border-top: 1px dashed var(--line); padding: 12px 16px 14px; }
.el-receipt-row { display: flex; align-items: center; gap: 8px; padding: 6px 0; border-bottom: 1px dotted var(--line); font-size: 12.5px; flex-wrap: wrap; }
.el-receipt-link { color: var(--primary); text-decoration: none; font-weight: 600; }
.el-receipt-link:hover { text-decoration: underline; }
.el-receipt-meta { color: var(--text-soft); font-size: 11px; font-family: var(--mono); margin-left: auto; }
.el-receipt-upload { display: flex; align-items: center; gap: 8px; margin-top: 10px; flex-wrap: wrap; }
.el-receipt-file-input { font-size: 12px; max-width: 220px; }
.el-icon-btn:hover { background: rgba(0,0,0,.05); }

.el-history-panel { background: var(--bg); border-top: 1px dashed var(--line); padding: 12px 16px 14px; }
.el-history-label { font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--text-soft); font-weight: 600; margin-bottom: 10px; }
.el-history-entry { display: flex; gap: 14px; padding: 8px 0; border-bottom: 1px dotted var(--line); flex-wrap: wrap; }
.el-stamp { min-width: 140px; }
.el-stamp-by { font-size: 11.5px; font-weight: 700; color: var(--danger); }
.el-stamp-at { font-size: 10px; color: var(--text-soft); font-family: var(--mono); }
.el-diff-list { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 200px; }
.el-diff-row { display: flex; align-items: baseline; gap: 8px; font-size: 12.5px; flex-wrap: wrap; }
.el-diff-field { min-width: 74px; color: var(--text-soft); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.el-diff-old { color: var(--danger); text-decoration: line-through; font-family: var(--mono); }
.el-diff-new { color: var(--text); font-weight: 600; font-family: var(--mono); }

.el-empty { padding: 40px 10px; text-align: center; color: var(--text-soft); font-size: 13px; }
.el-footer { margin-top: 24px; font-size: 11.5px; color: var(--text-soft); border-top: 1px solid var(--line); padding-top: 12px; line-height: 1.5; }

.el-stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 10px; margin-bottom: 20px; }
.el-stat-card { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; padding: 14px; }
.el-stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-soft); margin-bottom: 6px; }
.el-stat-value { font-family: var(--mono); font-size: 19px; font-weight: 700; color: var(--text); }
.el-stat-value.settled { color: var(--accent); }

.el-viz-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 14px; align-items: stretch; }

.el-category-panel { background: var(--surface); border: 1px solid var(--line); border-radius: 9px; padding: 16px; }
.el-category-title { font-size: 11px; text-transform: uppercase; letter-spacing: .05em; color: var(--text-soft); font-weight: 600; margin-bottom: 12px; }
.el-category-row { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; padding: 3px 4px; font-size: 13px; border-radius: 6px; cursor: default; }
.el-category-row:hover { background: var(--bg); }
.el-category-name { width: 90px; flex-shrink: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.el-category-bar-wrap { flex: 1; background: var(--bg); border-radius: 4px; height: 10px; overflow: hidden; }
.el-category-bar { height: 100%; background: var(--primary); border-radius: 0 4px 4px 0; min-width: 2px; }
.el-category-amount { font-family: var(--mono); width: 100px; text-align: right; flex-shrink: 0; }

/* --- Settlement meter --- */
.el-meter { display: flex; flex-direction: column; justify-content: center; height: 100%; gap: 10px; }
.el-meter-track { background: var(--primary-tint); border-radius: 999px; height: 14px; overflow: hidden; }
.el-meter-fill { height: 100%; background: var(--primary); border-radius: 999px; transition: width .3s ease; }
.el-meter-label { font-family: var(--mono); font-size: 13px; color: var(--text-soft); }
.el-meter-label strong { color: var(--text); font-size: 15px; }

/* --- Trend chart --- */
.el-trend-wrap { position: relative; width: 100%; }
.el-trend-wrap svg { display: block; width: 100%; height: auto; }
.el-trend-gridline { stroke: var(--line); stroke-width: 1; }
.el-trend-axis-label { fill: var(--text-soft); font-size: 10.5px; font-family: var(--mono); }
.el-trend-area { fill: var(--primary); opacity: .1; }
.el-trend-line { fill: none; stroke: var(--primary); stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.el-trend-dot { fill: var(--primary); stroke: var(--surface); stroke-width: 2; }
.el-trend-crosshair { stroke: var(--text-soft); stroke-width: 1; opacity: 0; pointer-events: none; }
.el-trend-hit { fill: transparent; cursor: crosshair; }

.el-viz-tooltip {
  position: fixed; z-index: 200; background: var(--text); color: #fff; border-radius: 6px;
  padding: 6px 10px; font-size: 12px; pointer-events: none; box-shadow: 0 6px 18px rgba(15,23,42,.25);
  max-width: 220px;
}
.el-viz-tooltip .el-viz-tooltip-value { font-weight: 700; font-family: var(--mono); }
.el-viz-tooltip .el-viz-tooltip-label { color: #C7CCD6; font-size: 11px; }

.el-report-row { display: grid; grid-template-columns: 1fr 110px 130px; column-gap: 12px; align-items: center; }
.el-report-summary { font-family: var(--mono); font-size: 13px; color: var(--text-soft); margin-bottom: 10px; }

.el-user-row { display: grid; grid-template-columns: 1fr 1fr 140px; column-gap: 12px; align-items: center; }

.el-catmgmt-row { display: grid; grid-template-columns: 1fr 160px 100px 70px; column-gap: 12px; align-items: center; }

.el-warning { color: var(--warning); background: var(--warning-tint); border: 1px solid var(--warning); border-radius: 6px; padding: 6px 10px; font-size: 12px; margin-top: 8px; }

.el-over-limit-tag {
  display: inline-flex; align-items: center; gap: 3px; background: var(--danger-tint); color: var(--danger);
  border: none; border-radius: 4px; padding: 1px 7px; font-size: 10.5px; font-weight: 600;
}

.el-modal-overlay {
  position: fixed; inset: 0; background: rgba(15,23,42,.5); display: flex;
  align-items: center; justify-content: center; z-index: 50; padding: 20px;
}
.el-modal-overlay[hidden] { display: none; }
.el-modal-card { width: min(380px, 92vw); box-shadow: 0 12px 40px rgba(15,23,42,.25); max-height: 90vh; overflow-y: auto; }
.el-modal-title { font-family: var(--sans); font-size: 18px; font-weight: 700; margin: 0; }
.el-audit-card { width: min(720px, 92vw); max-height: 82vh; display: flex; flex-direction: column; }
.el-audit-header { display: flex; justify-content: space-between; align-items: center; }
.el-audit-list { overflow-y: auto; flex: 1; border-top: 1px solid var(--line); }
.el-audit-row { display: flex; gap: 14px; padding: 10px 0; border-bottom: 1px dotted var(--line); flex-wrap: wrap; }
.el-audit-row-main { flex: 1; min-width: 220px; }
.el-audit-entry-desc { font-size: 13px; font-weight: 500; }
.el-audit-diff { font-size: 11.5px; color: var(--text-soft); font-family: var(--mono); margin-top: 2px; }

/* --- Responsive --- */
@media (max-width: 860px) {
  .el-sidebar {
    position: fixed; left: 0; top: 0; z-index: 100; height: 100vh;
    transform: translateX(-100%); transition: transform .2s ease;
  }
  .el-sidebar.open { transform: translateX(0); box-shadow: 8px 0 24px rgba(15,23,42,.2); }
  .el-mobile-menu-btn { display: flex; }
  .el-content { padding: 16px 14px 50px; }
  .el-topbar { padding: 12px 14px; }
}

@media (max-width: 640px) {
  .el-row-grid { grid-template-columns: 1fr; row-gap: 4px; }
  .el-amount { text-align: left; }
  .el-actions { justify-content: flex-start; }

  .el-report-row, .el-user-row, .el-catmgmt-row {
    grid-template-columns: 1fr; row-gap: 6px; text-align: left;
  }
  .el-report-row div, .el-user-row div { text-align: left !important; }
  .el-col-header.el-report-row div:nth-child(2),
  .el-col-header.el-report-row div:nth-child(3) { display: none; }

  .el-stat-grid { grid-template-columns: repeat(2, 1fr); }
  .el-viz-grid { grid-template-columns: 1fr; }
  .el-add-grid > * { width: 100% !important; flex: 1 1 100% !important; }
  .el-toolbar { flex-direction: column; align-items: stretch; }
  .el-toolbar-actions { justify-content: flex-start; }
}