/* Admin V65 - sidebar dashboard giống ảnh mẫu */
:root {
  --admin-bg: #f4f6f9;
  --admin-sidebar: #1f2429;
  --admin-sidebar-2: #171b20;
  --admin-text: #1f2937;
  --admin-muted: #6b7280;
  --admin-line: #dfe3ea;
  --admin-blue: #1683f8;
  --admin-cyan: #19a5b8;
  --admin-green: #28a745;
  --admin-red: #dc3545;
}

* {
  box-sizing: border-box;
}

html,
body,
button,
input,
select,
textarea {
  font-family: "Be Vietnam Pro", Arial, Tahoma, sans-serif !important;
}

body.admin-v65-body {
  margin: 0;
  color: var(--admin-text);
  background: var(--admin-bg);
  font-size: 14px;
}

.admin-v65-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
}

.admin-v65-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  background: linear-gradient(180deg, var(--admin-sidebar), var(--admin-sidebar-2));
  color: #d7dee8;
  padding: 14px 10px 22px;
  box-shadow: 4px 0 18px rgba(15, 23, 42, .18);
  z-index: 20;
}

.admin-v65-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 10px 12px 16px;
  color: #fff;
  text-decoration: none;
  border-bottom: 1px solid rgba(255,255,255,.08);
  margin-bottom: 10px;
}

.admin-v65-brand-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  background: #0d86ff;
  color: #fff;
  font-weight: 900;
  font-size: 22px;
}

.admin-v65-brand small {
  display: block;
  color: #cbd5e1;
  font-size: 11px;
  font-weight: 700;
  line-height: 1;
}

.admin-v65-brand strong {
  display: block;
  color: #fff;
  font-size: 22px;
  line-height: .95;
  font-weight: 900;
  letter-spacing: -.04em;
}

.admin-v65-nav {
  display: grid;
  gap: 4px;
}

.admin-v65-nav-link,
.admin-v65-nav-group > summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 4px;
  padding: 0 14px;
  color: #d7dee8;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.admin-v65-nav-group > summary::-webkit-details-marker {
  display: none;
}

.admin-v65-nav-link:hover,
.admin-v65-nav-group > summary:hover,
.admin-v65-nav-link.is-active {
  background: #0d86ff;
  color: #fff;
}

.admin-v65-nav-ico {
  width: 22px;
  text-align: center;
  opacity: .92;
  font-weight: 900;
}

.admin-v65-nav-group summary b {
  margin-left: auto;
  transition: transform .2s ease;
}

.admin-v65-nav-group[open] summary b {
  transform: rotate(180deg);
}

.admin-v65-nav-group div {
  display: grid;
  padding: 4px 0 8px 42px;
}

.admin-v65-nav-group div a {
  min-height: 34px;
  display: flex;
  align-items: center;
  color: #cbd5e1;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}

.admin-v65-nav-group div a::before {
  content: "▹";
  margin-right: 10px;
  color: #b7c1cf;
}

.admin-v65-nav-group div a:hover,
.admin-v65-nav-group div a.is-active {
  color: #fff;
}

.admin-v65-content {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.admin-v65-topbar {
  position: sticky;
  top: 0;
  z-index: 15;
  min-height: 64px;
  padding: 0 22px;
  display: flex;
  align-items: center;
  gap: 16px;
  background: #fff;
  border-bottom: 1px solid var(--admin-line);
  box-shadow: 0 2px 10px rgba(15, 23, 42, .04);
}

.admin-v65-menu-btn {
  display: none;
  border: 0;
  background: #0d86ff;
  color: #fff;
  border-radius: 8px;
  width: 40px;
  height: 40px;
  font-weight: 900;
  cursor: pointer;
}

.admin-v65-top-title {
  display: grid;
  gap: 2px;
}

.admin-v65-top-title strong {
  font-size: 17px;
  font-weight: 900;
}

.admin-v65-top-title span {
  color: var(--admin-muted);
  font-size: 12px;
}

.admin-v65-top-actions {
  margin-left: auto;
  display: flex;
  gap: 10px;
}

.admin-v65-top-actions a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 0 13px;
  border-radius: 999px;
  color: #0d86ff;
  background: #eff6ff;
  text-decoration: none;
  font-weight: 800;
  font-size: 13px;
}

.admin-v65-main {
  padding: 18px;
}

.admin-v65-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.admin-v65-stat-card,
.admin-v65-action-card {
  min-height: 96px;
  display: flex;
  align-items: center;
  gap: 14px;
  background: #fff;
  border: 1px solid var(--admin-line);
  border-radius: 3px;
  padding: 10px;
  color: var(--admin-text);
  text-decoration: none;
  box-shadow: 0 1px 4px rgba(15, 23, 42, .12);
}

.admin-v65-stat-icon {
  flex: 0 0 auto;
  width: 76px;
  height: 76px;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 34px;
  font-weight: 900;
  border-radius: 2px;
  box-shadow: inset 0 -8px 18px rgba(0,0,0,.08);
}

.admin-v65-stat-icon.blue { background: var(--admin-blue); }
.admin-v65-stat-icon.cyan { background: var(--admin-cyan); }
.admin-v65-stat-icon.green { background: var(--admin-green); }
.admin-v65-stat-icon.red { background: var(--admin-red); }

.admin-v65-stat-card h3,
.admin-v65-action-card strong {
  margin: 0 0 4px;
  color: #0d6efd;
  font-size: 14px;
  font-weight: 800;
}

.admin-v65-stat-card p {
  margin: 2px 0;
  color: #2f3947;
  font-size: 14px;
  line-height: 1.35;
}

.admin-v65-stat-card p strong {
  color: #e60023;
}

.admin-v65-action-card span:last-child {
  display: grid;
  gap: 2px;
}

.admin-v65-action-card em {
  color: var(--admin-muted);
  font-size: 12px;
  font-style: normal;
}

.admin-v65-action-card b {
  color: #111827;
  font-size: 14px;
  font-weight: 900;
}

.admin-v65-action-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(15, 23, 42, .12);
}

.admin-v65-panel {
  background: #fff;
  border: 1px solid var(--admin-line);
  border-radius: 6px;
  box-shadow: 0 1px 5px rgba(15, 23, 42, .08);
  overflow: hidden;
}

.admin-v65-panel-head {
  padding: 18px 22px;
  border-bottom: 1px solid var(--admin-line);
}

.admin-v65-panel-head h2 {
  margin: 0;
  color: #1f2937;
  font-size: 22px;
  line-height: 1.35;
  font-weight: 600;
}

.admin-v65-filter {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(180px, 1fr) 96px;
  gap: 14px;
  padding: 22px;
}

.admin-v65-filter select,
.admin-v65-filter button {
  min-height: 42px;
  border: 1px solid #d7dde6;
  border-radius: 5px;
  padding: 0 14px;
  background: #fff;
  color: #4b5563;
  font-weight: 500;
}

.admin-v65-filter button {
  border-color: #28a745;
  background: #28a745;
  color: #fff;
  font-weight: 800;
  cursor: pointer;
}

.admin-v65-chart-wrap {
  padding: 12px 22px 24px;
  overflow-x: auto;
}

.admin-v65-chart {
  width: 100%;
  min-width: 900px;
  height: auto;
  display: block;
}

.grid-line {
  stroke: #e6e9ee;
  stroke-width: 1;
}

.axis-label,
.day-label {
  fill: #475467;
  font-size: 12px;
}

.day-label {
  text-anchor: middle;
}

.chart-line {
  fill: none;
  stroke: #5aa4cf;
  stroke-width: 5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.chart-dot {
  fill: #5aa4cf;
  stroke: #fff;
  stroke-width: 2;
}

/* Đồng bộ giao diện cho bảng/form admin cũ */
.topbar,
.admin-v65-main > .topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.admin-v65-main h1 {
  margin: 0 0 18px;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -.03em;
}

.table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border: 1px solid var(--admin-line);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 1px 5px rgba(15,23,42,.08);
}

.table th,
.table td {
  padding: 12px 14px;
  border-bottom: 1px solid #e7ebf0;
  text-align: left;
  vertical-align: middle;
}

.table th {
  background: #f8fafc;
  color: #344054;
  font-size: 13px;
  font-weight: 900;
}

.table td {
  font-size: 14px;
}

.thumb {
  width: 54px;
  height: 54px;
  object-fit: contain;
  border-radius: 8px;
  background: #f2f4f7;
  border: 1px solid #e4e7ec;
}

.btn,
button.btn {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 16px;
  border: 0;
  border-radius: 6px;
  background: #0d86ff;
  color: #fff !important;
  text-decoration: none;
  font-weight: 800;
  cursor: pointer;
}

.panel {
  background: #fff;
  border: 1px solid var(--admin-line);
  border-radius: 6px;
  padding: 18px;
  margin-bottom: 20px;
  box-shadow: 0 1px 5px rgba(15,23,42,.08);
}

.form {
  display: grid;
  gap: 10px;
}

.form input,
.form textarea,
.form select {
  width: 100%;
  min-height: 40px;
  border: 1px solid #d7dde6;
  border-radius: 5px;
  padding: 8px 11px;
}

.form textarea {
  min-height: 100px;
}

@media (max-width: 1200px) {
  .admin-v65-stats-grid {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
  }
}

@media (max-width: 860px) {
  .admin-v65-layout {
    grid-template-columns: 1fr;
  }

  .admin-v65-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 280px;
    transform: translateX(-105%);
    transition: transform .22s ease;
  }

  .admin-v65-sidebar.is-open {
    transform: translateX(0);
  }

  .admin-v65-menu-btn {
    display: inline-grid;
    place-items: center;
  }

  .admin-v65-top-actions {
    display: none;
  }

  .admin-v65-main {
    padding: 14px;
  }

  .admin-v65-stats-grid {
    grid-template-columns: 1fr;
  }

  .admin-v65-filter {
    grid-template-columns: 1fr;
  }
}


/* =========================================================
   V66 - GIAO DIỆN ĐĂNG NHẬP ADMIN
   ========================================================= */

.admin-login-v66-body {
  min-height: 100vh;
  margin: 0;
  font-family: "Be Vietnam Pro", Arial, Tahoma, sans-serif !important;
  background:
    radial-gradient(circle at 18% 12%, rgba(13, 134, 255, .22), transparent 30%),
    radial-gradient(circle at 86% 16%, rgba(40, 167, 69, .14), transparent 28%),
    linear-gradient(135deg, #eef4fb 0%, #f8fafc 48%, #edf3ff 100%);
  color: #0f172a;
}

.admin-login-v66 {
  min-height: 100vh;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  align-items: center;
  gap: 54px;
  padding: 48px 0;
}

.admin-login-v66-brand {
  position: relative;
  min-height: 620px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 46px;
  border-radius: 34px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(2, 6, 23, .94), rgba(15, 23, 42, .9)),
    radial-gradient(circle at 70% 20%, rgba(13, 134, 255, .55), transparent 30%);
  color: #fff;
  box-shadow: 0 28px 80px rgba(15, 23, 42, .22);
}

.admin-login-v66-brand::before {
  content: "";
  position: absolute;
  inset: auto -90px -120px auto;
  width: 360px;
  height: 360px;
  border-radius: 999px;
  background: rgba(13, 134, 255, .35);
  filter: blur(10px);
}

.admin-login-v66-logo {
  position: relative;
  z-index: 1;
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  width: max-content;
  color: #fff;
  text-decoration: none;
  line-height: .9;
  margin-bottom: 80px;
}

.admin-login-v66-logo span {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .03em;
}

.admin-login-v66-logo strong {
  font-size: 48px;
  font-weight: 900;
  letter-spacing: -.06em;
}

.admin-login-v66-copy {
  position: relative;
  z-index: 1;
  max-width: 620px;
}

.admin-login-v66-badge {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  margin-bottom: 18px;
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  color: #dbeafe;
  font-size: 13px;
  font-weight: 900;
}

.admin-login-v66-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 5vw, 70px);
  line-height: .98;
  letter-spacing: -.06em;
  font-weight: 900;
}

.admin-login-v66-copy p {
  margin: 0;
  max-width: 540px;
  color: #cbd5e1;
  font-size: 18px;
  line-height: 1.75;
}

.admin-login-v66-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 58px;
}

.admin-login-v66-stats div {
  min-height: 108px;
  padding: 18px;
  border-radius: 20px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .13);
  backdrop-filter: blur(10px);
}

.admin-login-v66-stats strong {
  display: block;
  color: #60a5fa;
  font-size: 20px;
  font-weight: 900;
  margin-bottom: 10px;
}

.admin-login-v66-stats span {
  display: block;
  color: #e5e7eb;
  font-size: 14px;
  line-height: 1.45;
  font-weight: 800;
}

.admin-login-v66-panel {
  display: flex;
  justify-content: center;
}

.admin-login-v66-card {
  width: 100%;
  padding: 34px;
  border-radius: 28px;
  background: rgba(255, 255, 255, .92);
  border: 1px solid rgba(203, 213, 225, .9);
  box-shadow: 0 24px 70px rgba(15, 23, 42, .16);
  backdrop-filter: blur(14px);
}

.admin-login-v66-card-head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid #e5e7eb;
}

.admin-login-v66-card-head > span {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: #0d86ff;
  color: #fff;
  font-size: 24px;
  box-shadow: 0 12px 24px rgba(13, 134, 255, .24);
}

.admin-login-v66-card-head h2 {
  margin: 0 0 4px;
  color: #0f172a;
  font-size: 30px;
  line-height: 1.15;
  letter-spacing: -.04em;
  font-weight: 900;
}

.admin-login-v66-card-head p {
  margin: 0;
  color: #64748b;
  font-size: 14px;
  line-height: 1.5;
}

.admin-login-v66-alert {
  margin-bottom: 18px;
  padding: 13px 14px;
  border-radius: 14px;
  background: #fff1f0;
  border: 1px solid #fecdca;
  color: #b42318;
  font-size: 14px;
  line-height: 1.5;
  font-weight: 800;
}

.admin-login-v66-field {
  display: grid;
  gap: 9px;
  margin-bottom: 18px;
  color: #111827;
  font-size: 14px;
  font-weight: 900;
}

.admin-login-v66-field input {
  width: 100%;
  min-height: 52px;
  border: 1px solid #cbd5e1;
  border-radius: 16px;
  background: #fff;
  color: #0f172a;
  outline: 0;
  padding: 0 16px;
  font-size: 15px;
  font-weight: 600;
  transition: border-color .18s ease, box-shadow .18s ease;
}

.admin-login-v66-field input:focus {
  border-color: #0d86ff;
  box-shadow: 0 0 0 4px rgba(13, 134, 255, .14);
}

.admin-login-v66-submit {
  width: 100%;
  min-height: 54px;
  border: 0;
  border-radius: 999px;
  background: #0d86ff;
  color: #fff;
  font-size: 16px;
  font-weight: 900;
  cursor: pointer;
  box-shadow: 0 16px 30px rgba(13, 134, 255, .22);
  transition: transform .18s ease, background .18s ease;
}

.admin-login-v66-submit:hover {
  background: #006fd8;
  transform: translateY(-1px);
}

.admin-login-v66-hint {
  margin: 18px 0 0;
  padding: 13px 14px;
  border-radius: 14px;
  background: #f8fafc;
  color: #64748b;
  font-size: 13px;
  line-height: 1.55;
}

.admin-login-v66-hint strong {
  color: #0f172a;
}

@media (max-width: 980px) {
  .admin-login-v66 {
    grid-template-columns: 1fr;
    gap: 22px;
    padding: 28px 0;
  }

  .admin-login-v66-brand {
    min-height: auto;
    padding: 30px;
  }

  .admin-login-v66-logo {
    margin-bottom: 40px;
  }

  .admin-login-v66-stats {
    grid-template-columns: 1fr;
    margin-top: 34px;
  }

  .admin-login-v66-card {
    max-width: 560px;
  }
}

@media (max-width: 560px) {
  .admin-login-v66 {
    width: min(100%, calc(100% - 28px));
  }

  .admin-login-v66-brand {
    padding: 24px;
    border-radius: 24px;
  }

  .admin-login-v66-copy h1 {
    font-size: 38px;
  }

  .admin-login-v66-copy p {
    font-size: 15px;
  }

  .admin-login-v66-logo strong {
    font-size: 38px;
  }

  .admin-login-v66-card {
    padding: 24px;
    border-radius: 22px;
  }

  .admin-login-v66-card-head h2 {
    font-size: 25px;
  }
}