:root {
  --bg: #f6fbfb;
  --panel: #ffffff;
  --text: #173347;
  --muted: #5f7885;
  --primary: #14b8a6;
  --danger: #df4e4e;
  --border: #d9ecea;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, Segoe UI, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.admin-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 8%, rgba(20, 184, 166, 0.09), transparent 32%),
    radial-gradient(circle at 92% 92%, rgba(15, 118, 110, 0.1), transparent 30%),
    #f3fbfa;
}

.admin-layout {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 250px 1fr;
}

.admin-sidebar {
  background: #ffffff;
  color: #1e3d45;
  border-right: 1px solid #d8ece9;
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.sidebar-brand h1 {
  margin: 0;
  font-size: 22px;
  color: #0f766e;
}

.sidebar-brand p {
  margin: 6px 0 0;
  color: #6a8288;
  font-size: 13px;
}

.sidebar-nav {
  display: grid;
  gap: 8px;
}

.sidebar-link {
  border: 1px solid #d8ece9;
  background: #f8fdfc;
  color: #356069;
  border-radius: 10px;
  font-size: 14px;
  text-align: left;
  padding: 11px 12px;
  font-weight: 600;
  cursor: pointer;
}

.sidebar-link:hover {
  border-color: #99ddd5;
  background: #edf9f7;
}

.sidebar-link.active {
  border-color: #14b8a6;
  background: linear-gradient(90deg, #0f766e, #14b8a6);
  color: #fff;
}

.sidebar-logout {
  margin-top: auto;
  border: 1px solid #f1ccd2;
  background: #fff5f7;
  color: #b23a50;
  border-radius: 10px;
  padding: 11px 12px;
  font-weight: 700;
  cursor: pointer;
}

.sidebar-logout:hover {
  background: #ffeef2;
}

.admin-main {
  padding: 20px;
}

.admin-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.admin-topbar h2 {
  margin: 0 0 6px;
  font-size: 24px;
  color: #0f766e;
}

.admin-panel {
  display: none;
}

.admin-panel.active {
  display: block;
}

.admin-panel .admin-card {
  margin-bottom: 14px;
}

.admin-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

.auth-card {
  max-width: 420px;
  margin: 40px auto;
}

.admin-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  box-shadow: 0 10px 30px rgba(15, 45, 61, 0.06);
}

.admin-grid {
  display: grid;
  grid-template-columns: 360px 1fr;
  gap: 16px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.stat-card {
  padding: 16px;
  border-radius: 16px;
}

.stat-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.stat-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 18px;
  box-shadow: 0 10px 22px rgba(17, 24, 39, 0.16);
}

.stat-label {
  margin: 0;
  color: #5f7885;
  font-size: 13px;
  font-weight: 600;
}

.stat-value {
  margin: 10px 0 0;
  font-size: 36px;
  font-weight: 800;
  color: #153a46;
}

.stat-card-teal {
  background: linear-gradient(160deg, #ffffff, #f0fdfa);
}

.stat-card-teal .stat-icon {
  background: linear-gradient(135deg, #14b8a6, #0f766e);
}

.stat-card-blue {
  background: linear-gradient(160deg, #ffffff, #f0f7ff);
}

.stat-card-blue .stat-icon {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.stat-card-cyan {
  background: linear-gradient(160deg, #ffffff, #eefcff);
}

.stat-card-cyan .stat-icon {
  background: linear-gradient(135deg, #06b6d4, #0891b2);
}

.stat-card-violet {
  background: linear-gradient(160deg, #ffffff, #f5f3ff);
}

.stat-card-violet .stat-icon {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.brand-highlight {
  color: #0d9488;
}

.dashboard-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 10px;
}

.header-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

h1 { margin: 0 0 6px; font-size: 28px; }
h2 { margin: 0 0 10px; font-size: 18px; }
.mt { margin-top: 18px; }

.muted { color: var(--muted); margin: 0; font-size: 13px; }
.message { margin-top: 10px; font-size: 13px; color: var(--muted); }

label {
  display: block;
  margin: 8px 0 6px;
  color: var(--muted);
  font-size: 13px;
}

input, textarea, select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  background: #fff;
}

textarea {
  min-height: 88px;
  resize: vertical;
}

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.btn {
  border: none;
  border-radius: 10px;
  background: var(--primary);
  color: #fff;
  padding: 10px 14px;
  font-weight: 700;
  cursor: pointer;
}

.btn.secondary {
  background: #e9f7f5;
  color: #116c63;
  border: 1px solid var(--border);
}

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

.table-wrap {
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

th, td {
  text-align: left;
  padding: 10px 8px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}

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

@media (max-width: 980px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .admin-layout {
    grid-template-columns: 1fr;
  }
  .admin-sidebar {
    border-right: 0;
    border-bottom: 1px solid #d8ece9;
    padding: 14px;
  }
  .sidebar-nav {
    grid-template-columns: repeat(3, minmax(120px, 1fr));
  }
  .admin-main {
    padding: 14px;
  }
  .admin-topbar {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .sidebar-nav {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* Login Page (card design) */
.login-page {
  min-height: 100vh;
  margin: 0;
  color: #fff;
  background:
    radial-gradient(circle at 20% 20%, rgba(35, 78, 197, 0.25), transparent 35%),
    radial-gradient(circle at 80% 85%, rgba(24, 62, 175, 0.22), transparent 40%),
    #050e24;
}

.login-stage {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(440px, 100%);
  border-radius: 14px;
  overflow: hidden;
  background: #1b2437;
  border: 1px solid #243354;
  box-shadow:
    0 24px 50px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(64, 116, 255, 0.08) inset;
}

.login-head {
  background: linear-gradient(165deg, #2a55d7 0%, #2849b8 100%);
  padding: 32px 26px 28px;
  text-align: center;
}

.shield-badge {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  margin: 0 auto 14px;
  background: rgba(10, 23, 56, 0.45);
  border: 1px solid rgba(196, 216, 255, 0.25);
  display: grid;
  place-items: center;
}

.shield-badge svg {
  width: 15px;
  height: 15px;
  fill: #e9f1ff;
}

.login-head h1 {
  margin: 0;
  font-size: 32px;
  font-weight: 700;
}

.login-head p {
  margin: 6px 0 0;
  color: #c6d7ff;
  font-size: 13px;
}

.login-content {
  padding: 18px 18px 20px;
}

.login-page label {
  color: #e2ebff;
  margin: 10px 0 7px;
  font-size: 13px;
  font-weight: 600;
}

.input-shell {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid #273656;
  background: #0e1a34;
  border-radius: 8px;
  padding: 0 10px;
}

.input-icon {
  width: 14px;
  height: 14px;
  color: #6d86bd;
  flex-shrink: 0;
}

.input-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.input-shell input {
  border: 0;
  background: transparent;
  color: #e9f2ff;
  border-radius: 0;
  padding: 11px 2px 11px 0;
  font-size: 14px;
}

.input-shell input:focus {
  outline: none;
}

.input-shell:focus-within {
  border-color: #3b6ef2;
  box-shadow: 0 0 0 1px rgba(59, 110, 242, 0.35);
}

.input-shell input::placeholder {
  color: #7d8fb7;
}

.login-btn {
  width: 100%;
  margin-top: 16px;
  border: none;
  border-radius: 8px;
  background: linear-gradient(90deg, #3478ff, #468bff);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  padding: 11px 14px;
  cursor: pointer;
}

.login-btn:hover {
  filter: brightness(1.04);
}

.lang-switch {
  margin-top: 14px;
  display: flex;
  justify-content: center;
  gap: 8px;
}

.lang-btn {
  border: 1px solid #2d3c60;
  background: #17253f;
  color: #d2dcf2;
  border-radius: 18px;
  font-size: 12px;
  padding: 6px 12px;
  cursor: pointer;
}

.lang-btn.active {
  background: linear-gradient(90deg, #3f83ff, #5ca1ff);
  border-color: #4a8bff;
  color: #fff;
}

.login-page .login-message {
  color: #f6a5a5;
  font-size: 13px;
  margin: 10px 0 0;
  min-height: 20px;
  text-align: center;
}

@media (max-width: 520px) {
  .login-stage {
    padding: 16px;
  }
  .login-head h1 {
    font-size: 28px;
  }
}