/* ERP web UI — clean responsive layout (CSS grid/flex), no framework. */

:root {
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-border: #e1e4e8;
  --color-text: #1f2328;
  --color-muted: #6e7781;
  --color-primary: #0969da;
  --color-primary-dark: #0b5b9e;
  --color-danger: #cf222e;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(27, 31, 36, 0.12);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica,
    Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 56px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  color: var(--color-primary);
  text-decoration: none;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}

.main-nav a {
  padding: 6px 10px;
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
  font-size: 14px;
}

.main-nav a:hover { background: rgba(9, 105, 218, 0.08); }

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-name { color: var(--color-muted); font-size: 14px; }

.inline-form { display: inline; margin: 0; }

/* Main content */
main.container { padding-top: 24px; padding-bottom: 48px; }

h1 { font-size: 24px; margin: 0 0 16px; }

.muted { color: var(--color-muted); }

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 16px 0;
  color: var(--color-muted);
  font-size: 13px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}

.btn:hover { background: #f3f4f6; }

.btn-primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover { background: var(--color-primary-dark); }

.btn-danger { color: var(--color-danger); }

.btn-link {
  border: none;
  background: none;
  color: var(--color-primary);
  padding: 4px 6px;
  text-decoration: underline;
}

.btn-block { width: 100%; }

/* Forms */
.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--color-surface);
}

.form-group input:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.15);
}

/* Alerts */
.alert {
  padding: 10px 14px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  font-size: 14px;
}

.alert-error {
  background: #ffebe9;
  border: 1px solid #ff8182;
  color: #82071e;
}

.alert-success {
  background: #dafbe1;
  border: 1px solid #1a7f37;
  color: #0a4611;
}

/* Login page */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 32px 28px;
}

.login-card h1 {
  font-size: 20px;
  text-align: center;
  margin-bottom: 4px;
  color: var(--color-primary);
}

.login-subtitle {
  text-align: center;
  color: var(--color-muted);
  margin: 0 0 24px;
  font-size: 14px;
}

/* Dashboard */
.kpi-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.kpi-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
}

.kpi-form input[type="date"],
.kpi-form input[data-date-input] {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--color-surface);
}

.kpi-form input[type="date"]:focus,
.kpi-form input[data-date-input]:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.15);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}

.kpi-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.kpi-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text);
}

.kpi-value.positive { color: #1a7f37; }
.kpi-value.negative { color: var(--color-danger); }

.kpi-sub {
  font-size: 12px;
  color: var(--color-muted);
}

.chart-title {
  font-size: 18px;
  margin: 0 0 14px;
}

.chart-bars {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

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

.chart-row-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  text-align: right;
}

.chart-track {
  position: relative;
  height: 26px;
  border-radius: var(--radius);
  background: #eef1f4;
  overflow: hidden;
}

.bar {
  display: flex;
  align-items: center;
  height: 100%;
  min-width: 2px;
  padding: 0 8px;
  border-radius: var(--radius);
  color: #ffffff;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  transition: width 0.3s ease;
}

.bar-rev { background: #1a7f37; }
.bar-exp { background: #cf222e; }

/* Tables */
.table-wrap { overflow-x: auto; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

th, td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

th { background: #f6f8fa; font-weight: 600; }

tr:last-child td { border-bottom: none; }

.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }

.actions { white-space: nowrap; }
.actions .btn { margin-right: 4px; }

.btn-sm {
  padding: 4px 8px;
  font-size: 13px;
}

.btn-danger { color: var(--color-danger); }

.btn-sm.btn-danger {
  color: var(--color-danger);
  background: transparent;
}

.btn-sm.btn-danger:hover { background: #ffebe9; }

/* Page heading with an inline action button */
.page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-head h1 { margin: 0; }

.page-head p { margin: 4px 0 0; }

/* List toolbar (search + filter) */
.entity-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 14px;
}

.entity-filters label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
}

.entity-filters input[type="search"],
.entity-filters select {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--color-surface);
}

.entity-filters input[type="search"] { min-width: 220px; }

.entity-filters input[type="search"]:focus,
.entity-filters select:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.15);
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 14px;
}

.page-info { font-size: 14px; color: var(--color-muted); }

/* Card pages: stat boxes + period range form */
.card-period {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 20px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.card-period label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
}

.card-period input[type="date"],
.card-period input[data-date-input] {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  background: var(--color-surface);
}

.card-period input[type="date"]:focus,
.card-period input[data-date-input]:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 3px rgba(9, 105, 218, 0.15);
}

.card-totals {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.stat-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.stat-box-strong {
  border-color: var(--color-primary);
  background: #f0f7ff;
}

.stat-box .kpi-value { font-size: 20px; }

/* Status badges (transaction status + draft) */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
}

.badge-unpaid { background: #fff1e5; color: #9a3412; border: 1px solid #fed7aa; }
.badge-partially_paid { background: #fff7d6; color: #854d0e; border: 1px solid #fde68a; }
.badge-paid { background: #dafbe1; color: #0a4611; border: 1px solid #4ac26b; }
.badge-draft { background: #ebe9ff; color: #3b2f9e; border: 1px solid #c7c3ff; }

/* Transaction detail page */
.detail-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 20px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px 20px;
  margin-bottom: 16px;
}

.detail-field {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 14px;
  min-width: 0;
  overflow-wrap: anywhere;
}

.detail-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.amount-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.amount-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px;
  background: #f6f8fa;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  min-width: 130px;
}

.amount-box-strong {
  background: #f0f7ff;
  border-color: var(--color-primary);
}

.amount-value { font-size: 18px; font-weight: 700; }

.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 20px;
}

.section-block {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 20px;
}

.section-block .chart-title { margin-bottom: 12px; }

.upload-form {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 12px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
}

.upload-form label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-muted);
  flex: 1;
  min-width: 200px;
}

.upload-form input[type="file"] {
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  font-size: 14px;
}

/* Transaction create form: side-by-side money fields + readonly total */
.form-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.form-row .form-group { flex: 1; min-width: 120px; }

.total-readonly {
  background: #f6f8fa !important;
  font-weight: 700;
}

/* Responsive */
@media (max-width: 720px) {
  .header-inner { flex-wrap: wrap; gap: 8px; padding-top: 8px; padding-bottom: 8px; }
  .header-right { margin-left: 0; width: 100%; justify-content: space-between; }
}

/* Date picker popup (from date_input.js) */
.date-picker {
  z-index: 1000;
  background: var(--color-surface, #fff);
  border: 1px solid var(--color-border, #d0d7de);
  border-radius: 8px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
  padding: 8px;
  width: 240px;
  font-size: 13px;
}
.date-picker-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.date-picker-nav-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 2px 8px;
  color: var(--color-text, #1f2328);
}
.date-picker-nav-btn:hover { background: var(--color-border, #eaeef2); border-radius: 4px; }
.date-picker-nav-year { font-size: 14px; color: var(--color-muted, #59636e); }
.date-picker-title { font-weight: 600; }
.date-picker-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  text-align: center;
}
.date-picker-dow {
  font-weight: 600;
  color: var(--color-muted, #59636e);
  padding: 2px 0;
  font-size: 11px;
}
.date-picker-day {
  cursor: pointer;
  padding: 4px 0;
  border-radius: 4px;
}
.date-picker-day:hover { background: var(--color-primary, #0969da); color: #fff; }
.date-picker-day.is-today {
  font-weight: 700;
  color: var(--color-primary, #0969da);
  box-shadow: inset 0 0 0 1px var(--color-primary, #0969da);
}
.date-picker-day.is-today:hover { color: #fff; }
.date-picker-footer { margin-top: 6px; padding-top: 6px; border-top: 1px solid var(--color-border, #eaeef2); }
.date-picker-today {
  display: block;
  width: 100%;
  padding: 5px 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary, #0969da);
  background: none;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.date-picker-today:hover { background: var(--color-border, #eaeef2); }