@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Poppins:wght@600;700&display=swap');

:root {
  --admin-navy: #0a1628;
  --admin-navy-2: #132337;
  --admin-blue: #0066ff;
  --admin-cyan: #00d4ff;
  --admin-bg: #eef2ff;
  --admin-card: #ffffff;
  --admin-text: #0f172a;
  --admin-muted: #64748b;
  --admin-border: #dce5ff;
  --admin-sidebar-w: 270px;
  --admin-topbar-h: 64px;
}

body.admin-v2 {
  margin: 0;
  font-family: 'Inter', system-ui, sans-serif;
  color: var(--admin-text);
  background: var(--admin-bg);
  min-height: 100vh;
}

.admin-shell {
  min-height: 100vh;
  display: flex;
}

/* Sidebar */
.admin-sidebar {
  width: var(--admin-sidebar-w);
  background: linear-gradient(180deg, var(--admin-navy) 0%, #0d2847 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1100;
  transition: transform 0.3s ease;
  border-right: 1px solid rgba(0, 212, 255, 0.12);
}

.sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
}
.sidebar-brand img { height: 36px; filter: brightness(0) invert(1); }
.sidebar-brand span { font-family: 'Poppins', sans-serif; font-weight: 700; font-size: 0.9rem; }

.sidebar-close {
  display: none;
  background: rgba(255,255,255,0.1);
  border: none;
  color: #fff;
  width: 36px; height: 36px;
  border-radius: 10px;
  cursor: pointer;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 10px;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  margin-bottom: 4px;
  border-radius: 12px;
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
}
.sidebar-nav a i { width: 20px; text-align: center; opacity: 0.85; }
.sidebar-nav a:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}
.sidebar-nav a.is-active {
  background: rgba(0, 102, 255, 0.35);
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.25);
}
.sidebar-nav .nav-divider {
  height: 1px;
  background: rgba(255,255,255,0.1);
  margin: 12px 8px;
}
.sidebar-nav .nav-logout:hover { background: rgba(239, 68, 68, 0.25); }

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  background: rgba(0,0,0,0.15);
}
.user-avatar {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--admin-blue), var(--admin-cyan));
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1rem;
}
.sidebar-user strong { display: block; font-size: 0.85rem; }
.sidebar-user small { color: rgba(255,255,255,0.55); font-size: 0.75rem; }

/* Content area */
.admin-content-wrap {
  flex: 1;
  margin-left: var(--admin-sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.admin-topbar {
  height: var(--admin-topbar-h);
  background: var(--admin-card);
  border-bottom: 1px solid var(--admin-border);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(10, 22, 40, 0.06);
}

.sidebar-toggle {
  display: none;
  width: 42px; height: 42px;
  border-radius: 12px;
  border: 1px solid var(--admin-border);
  background: #fff;
  color: var(--admin-navy);
  cursor: pointer;
  font-size: 1rem;
}

.topbar-title { flex: 1; min-width: 0; }
.topbar-title h1 {
  margin: 0;
  font-family: 'Poppins', sans-serif;
  font-size: 1.15rem;
  color: var(--admin-navy);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-title p {
  margin: 2px 0 0;
  font-size: 0.8rem;
  color: var(--admin-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.admin-main {
  flex: 1;
  padding: 24px;
}

.admin-footer {
  padding: 16px 24px;
  background: var(--admin-navy);
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
}
.admin-footer a { color: var(--admin-cyan); text-decoration: none; }

.admin-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(10, 22, 40, 0.55);
  z-index: 1050;
  backdrop-filter: blur(4px);
}
.admin-overlay.show { display: block; }

/* Buttons */
.btn-admin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}
.btn-admin-primary {
  background: linear-gradient(135deg, var(--admin-blue), var(--admin-cyan));
  color: #fff;
  box-shadow: 0 8px 20px rgba(0, 102, 255, 0.3);
}
.btn-admin-primary:hover { transform: translateY(-1px); }
.btn-admin-ghost {
  background: #fff;
  color: var(--admin-navy);
  border: 1px solid var(--admin-border);
}
.btn-admin-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.btn-admin-sm { padding: 7px 12px; font-size: 0.8rem; }

/* Cards & grid */
.admin-grid { display: grid; gap: 20px; }
.admin-grid-2 { grid-template-columns: repeat(2, 1fr); }
.admin-grid-3 { grid-template-columns: repeat(3, 1fr); }
.admin-grid-4 { grid-template-columns: repeat(4, 1fr); }

.admin-card {
  background: var(--admin-card);
  border-radius: 16px;
  border: 1px solid var(--admin-border);
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.06);
  overflow: hidden;
}
.admin-card-head {
  padding: 18px 22px;
  border-bottom: 1px solid var(--admin-border);
}
.admin-card-head h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--admin-navy);
  display: flex;
  align-items: center;
  gap: 8px;
}
.admin-card-body { padding: 22px; }

.admin-alert {
  padding: 14px 18px;
  border-radius: 12px;
  margin-bottom: 20px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-alert-success { background: rgba(16,185,129,0.1); color: #059669; border: 1px solid rgba(16,185,129,0.2); }
.admin-alert-error { background: rgba(239,68,68,0.1); color: #dc2626; border: 1px solid rgba(239,68,68,0.2); }

/* Metrics */
.metric-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 22px;
}
.metric-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  color: #fff;
}
.metric-icon.blue { background: linear-gradient(135deg, #0066ff, #00d4ff); }
.metric-icon.green { background: linear-gradient(135deg, #059669, #10b981); }
.metric-icon.purple { background: linear-gradient(135deg, #7c3aed, #a78bfa); }
.metric-icon.orange { background: linear-gradient(135deg, #ea580c, #f97316); }
.metric-info h3 { margin: 0 0 4px; font-size: 0.8rem; color: var(--admin-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.metric-value { font-size: 1.75rem; font-weight: 800; color: var(--admin-navy); font-family: 'Poppins', sans-serif; }

/* Forms */
.admin-form .form-row { margin-bottom: 16px; }
.admin-form label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--admin-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.admin-form input,
.admin-form textarea,
.admin-form select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--admin-border);
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
  background: #fff;
}
.admin-form input:focus,
.admin-form textarea:focus,
.admin-form select:focus {
  outline: none;
  border-color: var(--admin-blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.12);
}
.admin-form textarea { min-height: 100px; resize: vertical; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* Tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.admin-table th {
  text-align: left;
  padding: 12px 14px;
  background: var(--admin-bg);
  color: var(--admin-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  white-space: nowrap;
}
.admin-table td {
  padding: 14px;
  border-top: 1px solid var(--admin-border);
  vertical-align: top;
}
.admin-table tr:hover td { background: rgba(0, 102, 255, 0.03); }

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}
.badge-open, .badge-new { background: rgba(0,102,255,0.12); color: #0066ff; }
.badge-in_progress, .badge-read { background: rgba(245,158,11,0.15); color: #d97706; }
.badge-closed, .badge-replied, .badge-archived { background: rgba(16,185,129,0.12); color: #059669; }

.quick-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.quick-action {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 20px 12px;
  border-radius: 14px;
  background: var(--admin-bg);
  border: 1px solid var(--admin-border);
  text-decoration: none;
  color: var(--admin-navy);
  font-weight: 600;
  font-size: 0.85rem;
  transition: all 0.2s;
}
.quick-action i { font-size: 1.4rem; color: var(--admin-blue); }
.quick-action:hover { border-color: var(--admin-blue); transform: translateY(-2px); }

.list-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 16px 0;
  border-bottom: 1px solid var(--admin-border);
}
.list-item:last-child { border-bottom: none; }
.list-item-thumb {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: var(--admin-bg);
  display: grid;
  place-items: center;
  color: var(--admin-blue);
  flex-shrink: 0;
  overflow: hidden;
}
.list-item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.list-item-body { flex: 1; min-width: 0; }
.list-item-body strong { display: block; color: var(--admin-navy); margin-bottom: 4px; }
.list-item-body p { margin: 0; font-size: 0.85rem; color: var(--admin-muted); }
.list-item-actions { flex-shrink: 0; }

.card-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.card-header-row h3 { margin: 0; font-size: 1rem; color: var(--admin-navy); }
.small-link { font-size: 0.85rem; color: var(--admin-blue); font-weight: 600; text-decoration: none; }

/* Login page */
.auth-page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: linear-gradient(135deg, #0a1628 0%, #0d2847 45%, #0066ff 100%);
}
.auth-topbar {
  padding: 14px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255,255,255,0.85);
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.auth-topbar a { color: var(--admin-cyan); text-decoration: none; font-weight: 600; }
.auth-header {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.auth-header .brand img { height: 42px; }
.auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: #fff;
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}
.auth-card h1 {
  margin: 0 0 8px;
  font-family: 'Poppins', sans-serif;
  font-size: 1.75rem;
  color: var(--admin-navy);
}
.auth-card .subtitle {
  margin: 0 0 28px;
  color: var(--admin-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}
.auth-error {
  padding: 12px 14px;
  background: rgba(239,68,68,0.1);
  color: #dc2626;
  border-radius: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
  font-weight: 600;
}
.auth-footer {
  padding: 20px 24px;
  text-align: center;
  color: rgba(255,255,255,0.6);
  font-size: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.auth-footer a { color: var(--admin-cyan); text-decoration: none; }

/* Responsive */
@media (max-width: 1100px) {
  .admin-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .admin-grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .sidebar-close { display: grid; place-items: center; }
  .admin-content-wrap { margin-left: 0; }
  .sidebar-toggle { display: grid; place-items: center; }
  .admin-main { padding: 16px; }
  .admin-grid-2,
  .admin-grid-3,
  .admin-grid-4 { grid-template-columns: 1fr; }
  .form-grid-2 { grid-template-columns: 1fr; }
  .topbar-actions .btn-admin span { display: none; }
  .admin-topbar { padding: 0 16px; }
  .admin-footer { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .metric-card { flex-direction: column; text-align: center; }
  .quick-actions { grid-template-columns: 1fr; }
  .list-item { flex-direction: column; }
}

/* Image upload fields */
.upload-field { margin-bottom: 18px; }
.upload-control {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}
.upload-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}
.upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.12), rgba(0, 212, 255, 0.12));
  border: 1px dashed var(--admin-blue);
  color: var(--admin-blue);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.2s ease;
}
.upload-btn:hover { background: rgba(0, 102, 255, 0.18); transform: translateY(-1px); }
.upload-name {
  font-size: 0.85rem;
  color: var(--admin-muted);
  flex: 1;
  min-width: 120px;
  word-break: break-all;
}
.upload-hint {
  display: block;
  margin-top: 8px;
  color: var(--admin-muted);
  font-size: 0.78rem;
}
.upload-preview {
  margin-top: 12px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--admin-border);
  max-width: 220px;
  background: var(--admin-bg);
}
.upload-preview img {
  width: 100%;
  height: auto;
  display: block;
  max-height: 160px;
  object-fit: cover;
}
.admin-form-upload { /* marker class optional */ }