/* =====================================================================
   GCTU PDU Evaluation System - Admin Panel Stylesheet
   ===================================================================== */

* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --navy: #0a2748;
  --navy-dark: #061a30;
  --navy-light: #143a66;
  --amber: #f5a623;
  --amber-dark: #d18a13;
  --gray-50: #f8f9fb;
  --gray-100: #eef1f5;
  --gray-200: #dde2eb;
  --gray-300: #c4cbd6;
  --gray-500: #6c7689;
  --gray-700: #3a4256;
  --gray-900: #1a1f2e;
  --success: #1f9c5b;
  --danger: #d63b3b;
  --warning: #e8a317;
  --info: #1e88e5;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 14px;
  line-height: 1.55;
  color: var(--gray-900);
  background: var(--gray-50);
  min-height: 100vh;
}

a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--amber-dark); }

/* ---------- Login page ---------- */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  overflow: hidden;
}
.login-header {
  background: var(--navy);
  color: #fff;
  text-align: center;
  padding: 30px 24px;
  border-bottom: 4px solid var(--amber);
}
.login-header .logo {
  width: 70px; height: 70px;
  background: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  padding: 4px;
  box-shadow: 0 0 0 3px var(--amber);
}
.login-header .logo img { max-width: 100%; }
.login-header h1 { font-size: 18px; font-weight: 700; }
.login-header p { font-size: 12px; color: rgba(255,255,255,0.7); margin-top: 4px; }
.login-body { padding: 30px 28px; }

/* ---------- Admin shell layout ---------- */
.admin-shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

.sidebar {
  background: var(--navy);
  color: #fff;
  padding: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.sidebar-brand {
  padding: 22px 20px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 12px;
}
.sidebar-brand .logo {
  width: 38px; height: 38px;
  background: #fff;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 3px;
  flex-shrink: 0;
}
.sidebar-brand .logo img { max-width: 100%; }
.sidebar-brand .text {
  font-size: 13px;
  font-weight: 700;
  line-height: 1.25;
}
.sidebar-brand .text small {
  display: block;
  font-weight: 400;
  color: var(--amber);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-top: 2px;
}

.sidebar-nav { padding: 16px 0; }
.sidebar-nav .section-label {
  padding: 14px 20px 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: rgba(255,255,255,0.35);
  font-weight: 700;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: rgba(255,255,255,0.78);
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: background 0.15s, color 0.15s;
}
.sidebar-nav a:hover {
  background: rgba(255,255,255,0.05);
  color: #fff;
  text-decoration: none;
}
.sidebar-nav a.active {
  background: rgba(245,166,35,0.1);
  border-left-color: var(--amber);
  color: #fff;
}
.sidebar-nav a .ico {
  width: 18px; text-align: center; font-size: 14px;
}

.main {
  min-width: 0; /* Prevents grid overflow */
  display: flex;
  flex-direction: column;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid var(--gray-200);
  padding: 14px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar h1 { font-size: 18px; color: var(--navy); font-weight: 700; }
.topbar .user-menu {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
}
.topbar .user-menu .avatar {
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--amber);
  color: var(--navy);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.content { padding: 24px 28px; flex: 1; }

/* ---------- KPI cards ---------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.kpi {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--navy);
  box-shadow: 0 1px 3px rgba(10,39,72,0.04);
}
.kpi.kpi-amber  { border-left-color: var(--amber); }
.kpi.kpi-green  { border-left-color: var(--success); }
.kpi.kpi-blue   { border-left-color: var(--info); }
.kpi .label { color: var(--gray-500); font-size: 12px; text-transform: uppercase; letter-spacing: 0.4px; margin-bottom: 6px; }
.kpi .value { font-size: 28px; font-weight: 700; color: var(--navy); line-height: 1.1; }
.kpi .sub { font-size: 12px; color: var(--gray-500); margin-top: 4px; }

/* ---------- Cards ---------- */
.card {
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  margin-bottom: 22px;
  overflow: hidden;
}
.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--gray-50);
}
.card-header h3 { font-size: 14px; color: var(--navy); font-weight: 700; }
.card-body { padding: 18px; }

/* ---------- Tables ---------- */
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.table th, .table td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}
.table th {
  background: var(--gray-50);
  font-weight: 700;
  color: var(--navy);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.table tbody tr:hover { background: var(--gray-50); }
.table .actions { white-space: nowrap; }
.table .actions a, .table .actions button {
  margin-right: 6px;
}

.badge {
  display: inline-block;
  padding: 2px 9px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 30px;
  background: var(--gray-200);
  color: var(--gray-700);
}
.badge-success { background: #d2efde; color: #156a3d; }
.badge-danger  { background: #f9d6d6; color: #8c2424; }
.badge-amber   { background: #fcecc7; color: #7a5208; }
.badge-navy    { background: #d3dcea; color: var(--navy); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-control {
  width: 100%;
  padding: 9px 12px;
  font-size: 14px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  background: #fff;
  color: var(--gray-900);
  font-family: inherit;
}
.form-control:focus {
  outline: none;
  border-color: var(--navy);
  box-shadow: 0 0 0 3px rgba(10,39,72,0.12);
}
textarea.form-control { resize: vertical; min-height: 80px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }

.form-help { font-size: 12px; color: var(--gray-500); margin-top: 4px; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 9px 18px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  transition: all 0.15s;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--navy); color: #fff; }
.btn-primary:hover { background: var(--navy-light); color: #fff; }
.btn-amber { background: var(--amber); color: var(--navy); }
.btn-amber:hover { background: var(--amber-dark); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #178148; color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b32f2f; color: #fff; }
.btn-outline {
  background: transparent;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}
.btn-outline:hover { background: var(--gray-100); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-block { width: 100%; display: block; }

/* ---------- Flash messages ---------- */
.flash {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  border-left: 4px solid;
}
.flash-success { background: #e7f7ee; color: #156a3d; border-color: var(--success); }
.flash-error   { background: #fbe9e9; color: #8c2424; border-color: var(--danger); }
.flash-info    { background: #e7f2fc; color: #1b4e7e; border-color: var(--info); }
.flash-warning { background: #fdf3df; color: #7a5208; border-color: var(--warning); }

/* ---------- Filters bar ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
  margin-bottom: 18px;
  padding: 14px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
}
.filter-bar .form-group { margin: 0; flex: 1; min-width: 160px; }
.filter-bar .form-group label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.4px; }

/* ---------- Report blocks ---------- */
.report-meta {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  margin-bottom: 22px;
}
.report-meta .item {
  background: var(--gray-50);
  padding: 12px 14px;
  border-radius: 8px;
  border-left: 3px solid var(--amber);
}
.report-meta .item .label { font-size: 11px; color: var(--gray-500); text-transform: uppercase; letter-spacing: 0.4px; }
.report-meta .item .value { font-size: 16px; font-weight: 700; color: var(--navy); margin-top: 2px; }

.bar-row { margin-bottom: 14px; }
.bar-row .bar-label { display: flex; justify-content: space-between; font-size: 13px; margin-bottom: 4px; }
.bar-row .bar-track { background: var(--gray-100); border-radius: 4px; height: 18px; overflow: hidden; }
.bar-row .bar-fill { background: linear-gradient(90deg, var(--navy), var(--amber)); height: 100%; border-radius: 4px; transition: width 0.4s; }

.comments-list { max-height: 320px; overflow-y: auto; padding-right: 8px; }
.comment-item {
  padding: 10px 12px;
  border-left: 3px solid var(--sky-light, #a8e0e9);
  background: var(--gray-50);
  border-radius: 4px;
  margin-bottom: 8px;
  font-size: 13px;
  color: var(--gray-700);
}
.comment-item .meta { font-size: 11px; color: var(--gray-500); margin-top: 4px; }

/* ---------- Empty state ---------- */
.empty {
  padding: 50px 20px;
  text-align: center;
  color: var(--gray-500);
}
.empty .icon { font-size: 48px; margin-bottom: 12px; opacity: 0.5; }

/* ---------- Print ---------- */
@media print {
  .sidebar, .topbar, .no-print { display: none !important; }
  .admin-shell { display: block; }
  .main { display: block; }
  .content { padding: 0; }
  body { background: #fff; }
  .card { border: 1px solid #ccc; box-shadow: none; page-break-inside: avoid; }
  .kpi { box-shadow: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .admin-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; height: auto; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .form-grid-2, .form-grid-3 { grid-template-columns: 1fr; }
  .report-meta { grid-template-columns: 1fr 1fr; }
}

/* ---- Added: badge-info, alert, pagination ---- */
.badge-info    { background: #cfe5fa; color: #0a3a66; }

.alert {
  padding: 12px 16px;
  border-radius: 6px;
  margin-bottom: 16px;
  font-size: 14px;
  line-height: 1.5;
  border-left: 4px solid transparent;
}
.alert-error   { background: #fbe9e9; color: #8c2424; border-left-color: #c0392b; }
.alert-success { background: #e5f4eb; color: #156a3d; border-left-color: #2ecc71; }
.alert-info    { background: #e7f2fb; color: #0a3a66; border-left-color: #2980b9; }
.alert-warning { background: #fff5d6; color: #7a5208; border-left-color: var(--amber); }

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 4px;
  margin: 20px 0;
  flex-wrap: wrap;
}
.pagination a,
.pagination .current {
  display: inline-block;
  padding: 6px 11px;
  border-radius: 4px;
  text-decoration: none;
  font-size: 13px;
  color: var(--navy);
  background: var(--gray-100);
  border: 1px solid transparent;
  transition: background 0.15s;
}
.pagination a:hover    { background: var(--gray-200); }
.pagination .current   { background: var(--navy); color: #fff; font-weight: 700; }

@media print {
  .no-print, .sidebar, .topbar, .filter-bar, .pagination { display: none !important; }
  body { background: #fff; }
  .main-content { margin-left: 0 !important; padding: 0 !important; }
  .card { box-shadow: none; border: 1px solid #ddd; page-break-inside: avoid; }
}