:root {
  --navy-950: #040d1a;
  --navy-900: #0b1728;
  --navy-850: #0f213a;
  --navy-800: #162c4d;
  --navy-700: #1e3a66;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-glow: rgba(37, 99, 235, 0.25);
  
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-subtle: #f1f5f9;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --text-white: #ffffff;

  --color-green: #10b981;
  --color-green-bg: #ecfdf5;
  --color-yellow: #f59e0b;
  --color-yellow-bg: #fffbeb;
  --color-red: #ef4444;
  --color-red-bg: #fef2f2;
  --color-purple: #8b5cf6;

  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.12);
  --sidebar-w: 270px;
}

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

html, body {
  overflow-x: hidden;
  max-width: 100vw;
  width: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ================= LOGIN SCREEN ================= */
.login-screen {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 10% 20%, #0f213a 0%, #040d1a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 9999;
}

.login-box {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  animation: scaleIn 0.3s ease-out;
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 1.75rem;
}

.login-logo {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: white;
  padding: 8px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  margin-bottom: 0.85rem;
  object-fit: contain;
}

.login-brand h1 {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--navy-900);
  letter-spacing: -0.02em;
}

.login-brand p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.security-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
  color: #047857;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  margin-top: 0.75rem;
}

/* ================= APP LAYOUT ================= */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
  width: var(--sidebar-w);
  background: var(--navy-900);
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  border-right: 1px solid var(--navy-800);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.sidebar-header {
  padding: 1.25rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-bottom: 1px solid var(--navy-800);
  background: var(--navy-950);
}

.sidebar-logo {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: white;
  padding: 4px;
  object-fit: contain;
}

.sidebar-brand h2 {
  font-size: 1rem;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.01em;
  line-height: 1.2;
}

.sidebar-brand span {
  font-size: 0.68rem;
  color: #38bdf8;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav-category {
  font-size: 0.68rem;
  font-weight: 800;
  color: #64748b;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.75rem 0.65rem 0.35rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  background: transparent;
  width: 100%;
  text-align: left;
  transition: all 0.15s ease;
}

.nav-item:hover {
  background: var(--navy-800);
  color: #ffffff;
}

.nav-item.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.nav-item svg {
  width: 18px;
  height: 18px;
  shrink-0: 0;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--navy-800);
  background: var(--navy-950);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.sidebar-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: white;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: 0.8rem;
  font-weight: 700;
  color: #f1f5f9;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 0.68rem;
  color: #38bdf8;
  font-weight: 600;
}

/* MAIN CONTENT WRAPPER */
.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-w);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

/* TOP NAVBAR */
.topbar {
  height: 64px;
  background: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding: 0 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.btn-sidebar-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  color: var(--text-main);
}

.topbar-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--navy-900);
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-view-site {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--navy-900);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 700;
  transition: all 0.2s;
}

.btn-view-site:hover {
  background: #e2e8f0;
}

/* CONTENT CONTAINER */
.content-container {
  padding: 1.75rem;
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
  animation: fadeIn 0.2s ease-in-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* CARDS */
.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card-title h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy-900);
}

.card-title p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* STATS ROW */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.stat-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-sm);
}

.stat-box-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-box-info h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-box-info .stat-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--navy-900);
  line-height: 1.1;
  margin: 2px 0;
}

.stat-box-info small {
  font-size: 0.72rem;
  color: var(--color-green);
  font-weight: 600;
}

/* FORMS & INPUTS */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.full-width {
  grid-column: span 2;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #334155;
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  color: var(--text-main);
  background: #ffffff;
  transition: all 0.2s;
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-hint {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.photo-uploader-box {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1rem;
  background: var(--bg-subtle);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  margin-top: 0.35rem;
}

.preview-thumb {
  width: 72px;
  height: 72px;
  border-radius: 12px;
  object-fit: cover;
  border: 2px solid white;
  box-shadow: var(--shadow-sm);
  background: #cbd5e1;
}

.uploader-actions {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.15rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  font-family: inherit;
  text-decoration: none;
  justify-content: center;
}

.btn-primary {
  background: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--primary-hover);
  box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-secondary {
  background: var(--bg-subtle);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: #e2e8f0;
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-danger-outline {
  background: transparent;
  border-color: var(--color-red);
  color: var(--color-red);
}

.btn-danger-outline:hover {
  background: var(--color-red);
  color: white;
}

.btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
}

.btn-block {
  width: 100%;
}

/* TABLES */
.table-responsive {
  overflow-x: auto;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.85rem;
}

.admin-table th {
  background: #f8fafc;
  padding: 0.75rem 1rem;
  font-weight: 700;
  color: #475569;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.admin-table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.admin-table tr:hover td {
  background: #f8fafc;
}

.table-user-cell {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.table-user-cell img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  object-fit: cover;
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.badge-blue { background: #eff6ff; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge-green { background: #ecfdf5; color: #047857; border: 1px solid #a7f3d0; }
.badge-amber { background: #fffbeb; color: #b45309; border: 1px solid #fde68a; }

/* MODALS */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  animation: scaleIn 0.2s ease-out;
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--navy-900);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  line-height: 1;
}

.modal-body {
  padding: 1.5rem;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  background: var(--bg-subtle);
  border-bottom-left-radius: var(--radius-xl);
  border-bottom-right-radius: var(--radius-xl);
}

/* TOAST */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 99999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--navy-900);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border-left: 4px solid var(--primary);
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ================= MOBILE RESPONSIVE ================= */
@media (max-width: 992px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 50px rgba(0,0,0,0.5);
  }

  .main-wrapper {
    margin-left: 0;
  }

  .btn-sidebar-toggle {
    display: inline-flex;
  }

  .topbar {
    padding: 0 1rem;
  }

  .content-container {
    padding: 1rem;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .form-group.full-width {
    grid-column: span 1;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }
}

@media (max-width: 480px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .modal-overlay {
    padding: 0;
    align-items: flex-end;
  }

  .modal-card {
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    max-height: 94vh;
  }

  .card {
    padding: 1.15rem 1rem;
  }
}