:root {
  --brand: #1f7a4d;
  --brand-dark: #155c39;
  --sidebar-bg: #15321f;
  --sidebar-fg: #d7e6dc;
  --sidebar-active: #2a7a4e;
  --bg: #f4f6f5;
  --card: #ffffff;
  --border: #e2e7e4;
  --text: #1f2a24;
  --muted: #6b7a72;
  --danger: #c0392b;
  --warn: #c77d12;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
}

/* ====== Login ====== */
.login-page {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh;
  background: linear-gradient(135deg, var(--brand), var(--sidebar-bg));
}
.login-card {
  background: var(--card); width: 360px; max-width: 92vw;
  padding: 32px 28px; border-radius: 14px;
  box-shadow: 0 18px 50px rgba(0,0,0,.25);
}
.login-brand { text-align: center; margin-bottom: 18px; }
.login-logo { font-size: 42px; }
.login-brand h1 { margin: 6px 0 2px; font-size: 22px; color: var(--brand-dark); }
.login-brand p { margin: 0; color: var(--muted); font-size: 13px; }

form label { display: block; margin-bottom: 12px; font-weight: 600; font-size: 13px; }
form input, form select {
  display: block; width: 100%; margin-top: 5px;
  padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font-size: 14px; font-weight: 400;
}
form input:focus, form select:focus { outline: 2px solid var(--brand); border-color: var(--brand); }

/* ====== Nút hiện/ẩn mật khẩu (con mắt) ====== */
.pw-wrap { position: relative; display: block; }
.pw-input { padding-right: 40px !important; }
.pw-toggle {
  position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--muted); display: flex; align-items: center; line-height: 0;
}
.pw-toggle:hover { color: var(--brand); }
.pw-toggle:focus-visible { outline: 2px solid var(--brand); border-radius: 6px; }
.pw-toggle svg { width: 18px; height: 18px; display: block; }
/* Trong hộp thoại SweetAlert2: giữ bề rộng ô như cũ */
.swal2-popup .pw-wrap { width: auto; }
.swal2-popup .pw-wrap .swal2-input { margin-left: 0; margin-right: 0; }

/* ====== Buttons ====== */
.btn {
  display: inline-block; padding: 9px 14px; border: 1px solid var(--border);
  background: #fff; border-radius: 8px; cursor: pointer; font-size: 14px;
}
.btn:hover { background: #f0f2f1; }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }
.btn-outline { background: transparent; border-color: #fff; color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.15); }
.btn-block { width: 100%; margin-top: 6px; }
.btn-sm { padding: 5px 9px; font-size: 12.5px; }
.btn-warn { color: var(--warn); border-color: var(--warn); }
.btn-ok { color: var(--brand); border-color: var(--brand); }
.icon-btn { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text); }

/* ====== Layout ====== */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 240px; flex: 0 0 240px; background: var(--sidebar-bg); color: var(--sidebar-fg);
  display: flex; flex-direction: column; transition: margin-left .2s;
}
.layout.sidebar-collapsed .sidebar { margin-left: -240px; }
.sidebar-brand {
  display: flex; align-items: center; gap: 10px;
  padding: 18px 18px; font-size: 17px; font-weight: 700; color: #fff;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.sidebar-logo { font-size: 22px; }
.sidebar-brand.clickable { cursor: pointer; }
.sidebar-brand.clickable:hover { background: rgba(255,255,255,.06); }
.menu { padding: 10px 0; overflow-y: auto; }
.menu-home { display: flex; align-items: center; gap: 8px; margin-bottom: 8px;
  padding-bottom: 11px; border-bottom: 1px solid rgba(255,255,255,.1); }
.menu-ic { font-size: 15px; line-height: 1; }
.menu-group { margin-bottom: 8px; }
.menu-group-title {
  padding: 10px 18px 4px; font-size: 11px; letter-spacing: .06em;
  text-transform: uppercase; color: #84a894; font-weight: 700;
}
.menu-item {
  display: block; padding: 9px 18px; color: var(--sidebar-fg);
  text-decoration: none; font-size: 14px; border-left: 3px solid transparent;
}
.menu-item:hover { background: rgba(255,255,255,.06); }
.menu-item.active {
  background: var(--sidebar-active); color: #fff;
  border-left-color: #8fe0b0; font-weight: 600;
}

.main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  display: flex; align-items: center; gap: 14px;
  background: var(--brand); color: #fff; padding: 0 18px; height: 56px;
  box-shadow: 0 2px 6px rgba(0,0,0,.12);
}
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.user-box { text-align: right; line-height: 1.2; }
.user-name { display: block; font-weight: 600; }
.user-role { display: block; font-size: 12px; opacity: .85; }

.content { padding: 22px; overflow-y: auto; }

/* ====== Card / Table ====== */
.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px; margin-bottom: 18px;
}
.card-narrow { max-width: 420px; }
.card-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.card h2 { margin: 0 0 6px; font-size: 18px; }
.placeholder { color: var(--muted); }

.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; }
.table th, .table td { padding: 9px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.table th { background: #f0f4f1; font-size: 12.5px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.table tr:hover td { background: #fafbfa; }
.actions { display: flex; gap: 6px; flex-wrap: wrap; }

.badge { padding: 3px 9px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge-on { background: #e3f5ea; color: var(--brand-dark); }
.badge-off { background: #fdecea; color: var(--danger); }

/* ====== Dashboard ====== */
.dash-filter { display: flex; flex-wrap: wrap; gap: 12px 14px; align-items: end; }
.dash-alert-slot { margin-left: auto; align-self: center; }
.dash-badge-warn { background: #fff0ef; color: var(--danger); border: 1px solid #f3b7b1;
  padding: 7px 12px; border-radius: 999px; font-weight: 600; font-size: 13px; }

.stat-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 12px; margin-bottom: 16px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px;
  padding: 14px; border-left: 4px solid var(--brand); }
.stat-card .stat-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.stat-card .stat-val { font-size: 18px; font-weight: 700; margin-top: 4px; color: var(--text); }
.stat-card .stat-sub { font-size: 12px; color: var(--muted); margin-top: 2px; }
.stat-card.c-tong { border-left-color: var(--brand-dark); background: #f0f7f3; }
.stat-card.c-datt { border-left-color: #2e9e67; }
.stat-card.c-chuatt { border-left-color: var(--danger); }
.stat-card.c-phu { border-left-color: #c77d12; }
.stat-card.c-ht { border-left-color: #3a6ea5; }
.stat-card.c-nam { border-left-color: #a05195; }

.dash-charts { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-bottom: 16px; }
.chart-card h3, .card > h3 { margin: 0 0 12px; font-size: 15px; }
.chart-box { position: relative; height: 280px; }
.chart-box canvas { max-height: 280px; }
.dash-chart-fallback-note { background: #fff9ec; border: 1px solid var(--warn); color: #8a5a00;
  border-radius: 8px; padding: 8px 12px; margin-bottom: 12px; font-size: 13px; }
.mini-table { font-size: 12.5px; }
.mini-table th { position: sticky; top: 0; }
.dash-empty { text-align: center; color: var(--muted); padding: 40px 20px; }
.dash-empty-ic { font-size: 40px; margin-bottom: 8px; }
.dash-empty-mini { color: var(--muted); padding: 20px; text-align: center; }

@media (max-width: 1100px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 900px) { .dash-charts { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } .dash-alert-slot { margin-left: 0; } }

/* ====== Tabs & toolbar (Danh mục) ====== */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.tab {
  padding: 9px 16px; border: none; background: none; cursor: pointer;
  font-size: 14px; color: var(--muted); border-bottom: 2px solid transparent; margin-bottom: -1px;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--brand-dark); border-bottom-color: var(--brand); font-weight: 600; }

.dm-toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.dm-search {
  flex: 1; max-width: 360px; padding: 9px 12px;
  border: 1px solid var(--border); border-radius: 8px; font-size: 14px;
}
.dm-search:focus { outline: 2px solid var(--brand); border-color: var(--brand); }
.dm-note { color: var(--muted); margin: 0 0 12px; }

/* ====== Nhập bảng kê: form ====== */
.muted-note { color: var(--muted); font-size: 13px; }
.nbk-form, .nbk-filter {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px 14px;
}
.nbk-filter { grid-template-columns: repeat(5, 1fr); margin-bottom: 14px; }
.fld { display: flex; flex-direction: column; min-width: 0; }
.fld-wide { grid-column: span 2; }
.fld > label { font-size: 12.5px; font-weight: 600; color: var(--muted); margin-bottom: 4px; }
.fld input, .fld select {
  padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; width: 100%;
}
.fld input:focus, .fld select:focus { outline: 2px solid var(--brand); border-color: var(--brand); }
.fld input.readonly { background: #f2f5f3; color: #333; }
.fld input.input-warn { border-color: var(--warn); background: #fff9ec; outline-color: var(--warn); }
.warn-line { color: var(--warn); font-size: 12px; margin-top: 3px; }

.ct-group { display: flex; flex-wrap: wrap; gap: 6px; }
.ct-btn {
  padding: 8px 12px; border: 1px solid var(--border); background: #fff; border-radius: 8px;
  cursor: pointer; font-size: 13px; font-weight: 600;
}
.ct-btn:hover { background: #f0f2f1; }
.ct-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; }

.nbk-actions { margin-top: 16px; display: flex; gap: 10px; }

/* ====== Combo gõ-để-lọc ====== */
.combo { position: relative; }
.combo-input { width: 100%; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; font-size: 14px; }
.combo-input:focus { outline: 2px solid var(--brand); border-color: var(--brand); }
.combo-menu {
  position: absolute; z-index: 40; left: 0; right: 0; top: calc(100% + 2px);
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0,0,0,.14); max-height: 240px; overflow-y: auto;
}
.combo-menu.hidden { display: none; }
.combo-item, .combo-add, .combo-empty { padding: 8px 10px; font-size: 14px; cursor: pointer; }
.combo-item:hover, .combo-item.hl { background: #eef5f0; }
.combo-add { color: var(--brand-dark); font-weight: 600; border-top: 1px solid var(--border); }
.combo-add:hover { background: #e3f5ea; }
.combo-empty { color: var(--muted); cursor: default; }

/* ====== Bảng kê ====== */
.nbk-table th.num, .nbk-table td.num { text-align: right; white-space: nowrap; }
.nbk-table td { font-size: 13px; }
.iso-warn { color: var(--warn); cursor: help; }
.tk-footer { background: #f0f4f1; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; margin-bottom: 14px; font-size: 13px; }
.tk-footer .tk-note { margin-bottom: 4px; }
.tk-footer.tk-empty { background: #fff9ec; border-color: var(--warn); color: #8a5a00; }
.tfoot-row td { background: #f0f4f1; border-top: 2px solid var(--border); }

@media (max-width: 980px) {
  .nbk-form { grid-template-columns: repeat(2, 1fr); }
  .nbk-filter { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .sidebar { position: fixed; z-index: 30; height: 100%; }
  .layout.sidebar-collapsed .sidebar { margin-left: -240px; }
  .nbk-form, .nbk-filter { grid-template-columns: 1fr; }
  .fld-wide { grid-column: span 1; }
}