:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --accent: #06b6d4;
  --danger: #ef4444;
  --success: #10b981;
  --bg: #f1f4f9;
  --surface: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow-sm: 0 1px 3px rgba(15,23,42,.08);
  --shadow-md: 0 4px 16px rgba(15,23,42,.10);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.16);
  --transition: all .2s ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: 'Segoe UI', system-ui, -apple-system, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 10px; }
::-webkit-scrollbar-thumb:hover { background: #94a3b8; }

/* ---------- LOGIN ---------- */
.login-body {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 40%, #06b6d4 100%);
  position: relative; overflow: hidden;
}
.login-body::before, .login-body::after {
  content: ''; position: absolute; border-radius: 50%;
  background: rgba(255,255,255,.08); animation: float 8s ease-in-out infinite;
}
.login-body::before { width: 300px; height: 300px; top: -80px; left: -80px; }
.login-body::after { width: 400px; height: 400px; bottom: -120px; right: -100px; animation-delay: 2s; }
@keyframes float { 0%,100% { transform: translateY(0) } 50% { transform: translateY(-20px) } }

.login-box {
  background: rgba(255,255,255,.97); backdrop-filter: blur(10px);
  padding: 44px 40px; border-radius: 20px; width: 360px;
  box-shadow: var(--shadow-lg); text-align: center; position: relative; z-index: 2;
  animation: slideUp .5s ease;
}
@keyframes slideUp { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.login-box h1 { font-size: 20px; margin-bottom: 2px; color: var(--primary-dark); font-weight: 800; letter-spacing: -.3px; }
.login-box h3 { margin-top: 4px; margin-bottom: 20px; color: var(--text-muted); font-weight: 400; font-size: 14px; }
.login-box input {
  width: 100%; padding: 13px 14px; margin: 8px 0; border: 1.5px solid var(--border);
  border-radius: 10px; font-size: 14px; transition: var(--transition); background: #f8fafc;
}
.login-box input:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(99,102,241,.15); }
.login-box button {
  width: 100%; padding: 13px; margin-top: 14px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; border: none; border-radius: 10px; cursor: pointer; font-weight: 700; font-size: 14px;
  transition: var(--transition); box-shadow: 0 4px 14px rgba(79,70,229,.35);
}
.login-box button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(79,70,229,.45); }
.login-box button:active { transform: translateY(0); }
.error { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 6px; font-weight: 500; }

/* ---------- TOPBAR ---------- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(135deg, #1e293b, #334155);
  color: #fff; padding: 14px 28px; position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow-md); flex-wrap: wrap; gap: 10px;
}
.topbar .brand { font-weight: 800; font-size: 18px; letter-spacing: -.3px; display: flex; align-items: center; gap: 8px; }
.topbar .brand::before { content: '🎓'; font-size: 20px; }
.topbar nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.topbar nav a, .topbar nav .nav-link {
  color: #f8fafc; text-decoration: none; font-size: 14px; padding: 9px 16px;
  border-radius: 9px; transition: var(--transition); font-weight: 600;
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.15);
}
.topbar nav a:hover { background: rgba(255,255,255,.22); color: #fff; transform: translateY(-1px); }
.topbar nav a.active {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; box-shadow: 0 3px 10px rgba(99,102,241,.5); border-color: transparent;
}
.topbar .btn-outline.nav-link {
  background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.2); color: #f8fafc;
}
.topbar .btn-outline.nav-link:hover { background: rgba(255,255,255,.22); border-color: #fff; }
.topbar .right { display: flex; align-items: center; gap: 12px; }
.topbar .right span { font-size: 13px; color: #cbd5e1; display: flex; align-items: center; gap: 6px; }

.btn {
  padding: 9px 16px; border: none; border-radius: 9px; cursor: pointer;
  font-weight: 600; font-size: 13px; transition: var(--transition);
  display: inline-flex; align-items: center; gap: 6px;
}
.btn:active { transform: scale(.96); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; box-shadow: 0 3px 10px rgba(79,70,229,.35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(79,70,229,.45); }
.btn-secondary { background: #e2e8f0; color: #1e293b; }
.btn-secondary:hover { background: #cbd5e1; }
.btn-danger { background: linear-gradient(135deg, #f87171, var(--danger)); color: #fff; box-shadow: 0 3px 10px rgba(239,68,68,.3); }
.btn-danger:hover { transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1.5px solid rgba(255,255,255,.35); color: #e2e8f0; }
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: #fff; }

.container { max-width: 1300px; margin: 28px auto; padding: 0 20px; animation: fadeIn .4s ease; }
.container-full { max-width: 100%; margin: 28px auto; padding: 0 28px; animation: fadeIn .4s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
h2 { font-size: 22px; font-weight: 800; letter-spacing: -.3px; margin-bottom: 18px; color: var(--text); }

/* ---------- CARDS ---------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 18px; margin-bottom: 28px; }
.card {
  background: var(--surface); border-radius: var(--radius); padding: 20px 22px;
  box-shadow: var(--shadow-sm); transition: var(--transition); position: relative;
  overflow: hidden; border: 1px solid var(--border);
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; width: 4px; height: 100%;
  background: linear-gradient(180deg, var(--primary), var(--accent));
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.card .label { font-size: 13px; color: var(--text-muted); font-weight: 600; text-transform: uppercase; letter-spacing: .4px; }
.card .value { font-size: 30px; font-weight: 800; color: var(--text); margin-top: 8px; }

.panel {
  background: var(--surface); border-radius: var(--radius); padding: 22px;
  box-shadow: var(--shadow-sm); margin-bottom: 22px; border: 1px solid var(--border);
  transition: var(--transition);
}
.panel:hover { box-shadow: var(--shadow-md); }
.panel h3 { margin-top: 0; font-size: 16px; font-weight: 700; }

.topics-list { max-height: 220px; overflow-y: auto; }
.topics-list div {
  padding: 9px 10px; border-bottom: 1px solid #f1f5f9; font-size: 14px;
  border-radius: 6px; transition: var(--transition);
}
.topics-list div:hover { background: #f8fafc; }

/* ---------- TOOLBAR ---------- */
.toolbar {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-bottom: 18px;
  justify-content: space-between; background: var(--surface); padding: 14px 18px;
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.toolbar .left, .toolbar .right { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.toolbar input[type=text], .toolbar input[type=date], .toolbar select {
  padding: 9px 12px; border: 1.5px solid var(--border); border-radius: 8px; font-size: 13px;
  transition: var(--transition); background: #f8fafc;
}
.toolbar input:focus, .toolbar select:focus { outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(99,102,241,.12); }
.toolbar input[type=text]#searchInput { min-width: 220px; }

/* ---------- TABLE ---------- */
.table-wrapper {
  width: 100%; overflow-x: auto; overflow-y: auto; max-height: 68vh; background: var(--surface);
  border-radius: var(--radius); box-shadow: var(--shadow-sm); border: 1.5px solid var(--border);
}
table { width: 100%; border-collapse: collapse; table-layout: auto; }
table, thead th, tbody td { border: 1px solid #eef1f6; }
thead th:first-child, tbody td:first-child { border-left: none; }
thead th:last-child, tbody td:last-child { border-right: none; }
thead th {
  position: sticky; top: 0; background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  color: #fff; text-align: left; padding: 12px 14px; font-size: 12.5px; z-index: 5;
  font-weight: 700; text-transform: uppercase; letter-spacing: .3px;
}
tbody td { padding: 12px 14px; border-bottom: 1px solid #f1f5f9; font-size: 13.5px; vertical-align: middle; }
tbody tr { transition: var(--transition); }
tbody tr:hover { background: #f8fafc; }

.link-cell a { color: var(--primary-dark); text-decoration: none; font-weight: 600; }
.link-cell a:hover { text-decoration: underline; }
.link-cell .cname { display: block; color: #475569; font-size: 12px; margin-top: 3px; }

.tag {
  display: inline-block; padding: 4px 10px; border-radius: 14px; font-size: 11px;
  font-weight: 700; margin: 2px; color: #1e293b; box-shadow: 0 1px 3px rgba(0,0,0,.08);
  transition: var(--transition);
}
.pid-tag { cursor: pointer; }
.pid-tag:hover { transform: translateY(-2px) scale(1.05); box-shadow: 0 4px 10px rgba(0,0,0,.15); }

.icon-btn {
  border: none; background: #f1f5f9; cursor: pointer; font-size: 15px; margin: 0 3px;
  width: 32px; height: 32px; border-radius: 8px; transition: var(--transition);
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn:hover { transform: scale(1.1); }
.icon-btn.edit { color: var(--primary-dark); }
.icon-btn.edit:hover { background: #e0e7ff; }
.icon-btn.delete { color: var(--danger); }
.icon-btn.delete:hover { background: #fee2e2; }

/* ---------- PAGINATION ---------- */
.pagination { display: flex; justify-content: center; align-items: center; gap: 14px; margin-top: 18px; }
.pagination button {
  padding: 8px 16px; border: 1.5px solid var(--border); background: var(--surface);
  border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 13px; transition: var(--transition);
}
.pagination button:hover:not(:disabled) { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: .4; cursor: not-allowed; }
.pagination span { font-size: 13px; color: var(--text-muted); font-weight: 500; }

/* ---------- MODAL ---------- */
.modal-overlay {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(15,23,42,.55); backdrop-filter: blur(3px);
  display: none; align-items: center; justify-content: center; z-index: 200; padding: 20px;
}
.modal-overlay.active { display: flex; animation: overlayFade .2s ease; }
@keyframes overlayFade { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface); border-radius: 16px; padding: 26px; width: 480px;
  max-height: 88vh; overflow-y: auto; box-shadow: var(--shadow-lg); border: 1.5px solid var(--border);
  animation: modalPop .25s ease;
}
@keyframes modalPop { from { opacity: 0; transform: scale(.94) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal h3 { margin-top: 0; font-size: 18px; font-weight: 800; color: var(--text); }
.modal label { display: block; font-size: 12.5px; margin: 12px 0 5px; color: #475569; font-weight: 700; text-transform: uppercase; letter-spacing: .3px; }
.modal input, .modal select, .modal textarea {
  width: 100%; padding: 10px 12px; border: 1.5px solid var(--border); border-radius: 8px;
  font-size: 13.5px; transition: var(--transition); background: #f8fafc;
}
.modal input:focus, .modal select:focus, .modal textarea:focus {
  outline: none; border-color: var(--primary); background: #fff; box-shadow: 0 0 0 3px rgba(99,102,241,.12);
}
.modal .actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.modal .portal-checks { display: flex; flex-wrap: wrap; gap: 10px; }
.modal .portal-checks label {
  display: flex; align-items: center; gap: 6px; font-weight: 500; font-size: 13px; margin: 0;
  text-transform: none; background: #f1f5f9; padding: 6px 10px; border-radius: 8px; cursor: pointer;
  transition: var(--transition);
}
.modal .portal-checks label:hover { background: #e2e8f0; }

.pid-popup-list { max-height: 160px; overflow-y: auto; margin: 12px 0; }
.pid-popup-list div {
  display: flex; justify-content: space-between; align-items: center; padding: 8px 6px;
  border-bottom: 1px solid #f1f5f9; border-radius: 6px; transition: var(--transition);
}
.pid-popup-list div:hover { background: #f8fafc; }

.role-badge { padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .3px; }
.role-admin { background: #fee2e2; color: #991b1b; }
.role-edit { background: #dbeafe; color: #1e40af; }
.role-view { background: #e2e8f0; color: #334155; }

/* ---------- TOAST ---------- */
#toastContainer { position: fixed; top: 20px; right: 20px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--surface); border-left: 4px solid var(--primary); border-radius: 10px;
  padding: 14px 18px; box-shadow: var(--shadow-lg); font-size: 13.5px; font-weight: 500;
  min-width: 240px; animation: toastIn .3s ease; color: var(--text);
}
.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
@keyframes toastIn { from { opacity: 0; transform: translateX(30px); } to { opacity: 1; transform: translateX(0); } }

/* ---------- HAMBURGER (mobile nav) ---------- */
.hamburger { display: none; background: transparent; border: none; color: #fff; font-size: 22px; cursor: pointer; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .topbar nav { display: none; width: 100%; flex-direction: column; align-items: stretch; }
  .topbar nav.open { display: flex; }
  .topbar .brand { flex: 1; }
  .hamburger { display: block; }
  .topbar { position: sticky; }
  .modal { width: 92%; }
}

@media (max-width: 640px) {
  .container { padding: 0 12px; margin: 16px auto; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar .left, .toolbar .right { flex-direction: column; align-items: stretch; }
  .toolbar input, .toolbar select { width: 100%; }
  .cards { grid-template-columns: 1fr 1fr; }
  .card .value { font-size: 24px; }
  .topbar .right span { display: none; }
}

@media (max-width: 420px) {
  .cards { grid-template-columns: 1fr; }
  .login-box { width: 90%; padding: 32px 24px; }
}


/* ---------- LOADING SPINNER ---------- */
.spinner {
  width: 34px; height: 34px; border: 3.5px solid #e2e8f0; border-top-color: var(--primary);
  border-radius: 50%; animation: spin .7s linear infinite; margin: 0 auto;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes rowFade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }


/* ---------- ABSTRACT BACKGROUND SHAPES ---------- */
.abstract-bg {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%;
  z-index: -1; overflow: hidden; pointer-events: none;
}
.abstract-bg .shape {
  position: absolute; border-radius: 50%; opacity: .35; filter: blur(2px);
  animation: drift 14s ease-in-out infinite;
}
.abstract-bg .shape1 {
  width: 340px; height: 340px; background: radial-gradient(circle at 30% 30%, #818cf8, #4f46e5);
  top: -100px; left: -80px; animation-delay: 0s;
}
.abstract-bg .shape2 {
  width: 260px; height: 260px; background: radial-gradient(circle at 30% 30%, #22d3ee, #0891b2);
  bottom: -90px; right: -60px; animation-delay: 3s;
}
.abstract-bg .shape3 {
  width: 180px; height: 180px; background: radial-gradient(circle at 30% 30%, #f472b6, #db2777);
  top: 40%; right: 8%; animation-delay: 6s; opacity: .2;
}
.abstract-bg .shape4 {
  width: 140px; height: 140px; background: radial-gradient(circle at 30% 30%, #fbbf24, #f59e0b);
  bottom: 15%; left: 6%; animation-delay: 1.5s; opacity: .18;
}
.abstract-bg .blob-poly {
  position: absolute; opacity: .12; top: 20%; left: 45%;
  animation: rotate360 40s linear infinite;
}
@keyframes drift {
  0%, 100% { transform: translate(0,0) scale(1); }
  50% { transform: translate(30px,-20px) scale(1.08); }
}
@keyframes rotate360 { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

.app-body { position: relative; min-height: 100vh; }

/* ---------- USER MENU ---------- */
.user-menu { position: relative; display: flex; align-items: center; gap: 10px; }
.user-avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 800; font-size: 14px; text-transform: uppercase;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
}
.user-menu .role-badge { font-size: 12px; padding: 5px 12px; }

/* ---------- GREETING BANNER ---------- */
.greeting-banner {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff; border-radius: var(--radius); padding: 24px 28px; margin-bottom: 24px;
  box-shadow: var(--shadow-md); position: relative; overflow: hidden;
  animation: slideUp .4s ease;
}
.greeting-banner::after {
  content: ''; position: absolute; width: 180px; height: 180px; border-radius: 50%;
  background: rgba(255,255,255,.12); top: -60px; right: -40px;
}
.greeting-banner h2 { margin: 0 0 4px; color: #fff; font-size: 22px; }
.greeting-banner p { margin: 0; font-size: 14px; opacity: .92; }
.greeting-banner .emoji { font-size: 26px; margin-right: 8px; }


/* ---------- WIDE MODAL ---------- */
.modal-wide { width: 640px !important; max-width: 92vw; }
.modal-wide .two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }

/* ---------- CLEARER ICON BUTTONS ---------- */
.icon-btn {
  border: 1.5px solid var(--border); background: #fff; cursor: pointer; font-size: 15px; margin: 0 4px;
  width: 34px; height: 34px; border-radius: 8px; transition: var(--transition);
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn.edit { color: var(--primary-dark); border-color: #c7d2fe; background: #eef2ff; }
.icon-btn.edit:hover { background: var(--primary-dark); color: #fff; border-color: var(--primary-dark); }
.icon-btn.delete { color: var(--danger); border-color: #fecaca; background: #fef2f2; }
.icon-btn.delete:hover { background: var(--danger); color: #fff; border-color: var(--danger); }
.icon-btn.add { color: var(--success); border-color: #a7f3d0; background: #ecfdf5; }
.icon-btn.add:hover { background: var(--success); color: #fff; border-color: var(--success); }

/* ---------- STRUCTURED POPUP ROWS (users/portals) ---------- */
.pid-popup-list {
  border: 1.5px solid var(--border); border-radius: 10px; padding: 6px 10px; background: #f8fafc;
}
.pid-popup-list div {
  display: flex; justify-content: space-between; align-items: center; padding: 10px 4px;
  border-bottom: 1px solid #e2e8f0;
}
.pid-popup-list div:last-child { border-bottom: none; }
.pid-popup-list div span:first-child { display: flex; align-items: center; gap: 8px; }
.pid-popup-list div > span:last-child, .pid-popup-list div > .row-actions {
  display: flex; align-items: center; gap: 8px;
}
.pid-popup-list select { padding: 6px 10px; border: 1.5px solid var(--border); border-radius: 6px; font-size: 12.5px; background: #fff; }