/* ============================================================
   Admin Panel – enhanced sidebar, scrollable nav, mobile overlay
   ============================================================ */

body.admin-body {
  background: var(--bg);
}

/* ----- Sidebar (full height + scrollable nav) ----- */
.admin-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar);
  height: 100vh;                    /* full viewport */
  padding: 20px 14px;
  background: linear-gradient(180deg, #0d1b2e 0%, #0a1424 100%);
  backdrop-filter: blur(8px);
  border-right: 1px solid rgba(255,255,255,0.06);
  box-shadow: 8px 0 30px rgba(0,0,0,0.2);
  z-index: 50;
  display: flex;
  flex-direction: column;
  color: #d9e5fb;
  overflow: hidden;                 /* prevent outer scroll */
}

.admin-sidebar .brand {
  padding: 8px 10px 24px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.admin-sidebar .brand-name {
  color: #fff;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: -0.5px;
}
.admin-sidebar .brand-mark {
  background: linear-gradient(135deg, #3b7bff, #1a5ad0);
  box-shadow: 0 8px 20px rgba(42,109,244,0.3);
}

/* ----- Scrollable nav container ----- */
.admin-sidebar nav {
  flex: 1;
  overflow-y: auto;                 /* ⬅️ enables scrolling */
  padding-right: 4px;               /* avoid cut-off */
  scrollbar-width: thin;            /* Firefox */
}
.admin-sidebar nav::-webkit-scrollbar {
  width: 4px;
}
.admin-sidebar nav::-webkit-scrollbar-track {
  background: transparent;
}
.admin-sidebar nav::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
}

.admin-sidebar .nav-label {
  padding: 18px 12px 6px;
  color: #6a7f9c;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
}
.admin-sidebar .nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #b0c3db;
  padding: 10px 12px;
  border-radius: 12px;
  margin: 2px 0;
  font-weight: 600;
  transition: all var(--transition);
}
.admin-sidebar .nav-link:hover {
  background: rgba(255,255,255,0.06);
  color: #fff;
  transform: translateX(4px);
}
.admin-sidebar .nav-link.active {
  background: linear-gradient(90deg, rgba(42,109,244,0.25), rgba(42,109,244,0.05));
  color: #fff;
  box-shadow: inset 3px 0 var(--primary);
}
.admin-sidebar .nav-link > span:first-child {
  width: 24px;
  text-align: center;
  opacity: 0.8;
}

/* ----- Sidebar footer (fixed at bottom) ----- */
.admin-sidebar .sidebar-footer {
  flex-shrink: 0;
  margin-top: auto;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 14px;
}
.admin-sidebar .user-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 4px;
}
.admin-sidebar .avatar {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3b7bff, #1a5ad0);
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 700;
}
.admin-sidebar .logout {
  font-size: 12px;
  color: #849bb8;
}

/* ----- Main content ----- */
.admin-main {
  margin-left: var(--sidebar);
  min-height: 100vh;
  padding: 30px 30px 40px;
}
.admin-main .topbar { padding-top: 0; }
.admin-main .stat-card:first-child { border-top: 3px solid var(--primary); }

.admin-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.admin-kicker:before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

.admin-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

/* ----- Mobile overlay & sidebar sliding (for ≤ 620px) ----- */
.admin-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 45;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.admin-overlay.show {
  display: block;
}

/* ----- Responsive: tablet (≤ 900px) ----- */
@media (max-width: 900px) {
  .admin-sidebar {
    width: 76px;
    padding: 14px 8px;
  }
  .admin-sidebar .brand-name,
  .admin-sidebar .nav-label,
  .admin-sidebar .nav-text,
  .admin-sidebar .user-meta {
    display: none;
  }
  .admin-sidebar .brand {
    justify-content: center;
    padding: 6px 0 16px;
  }
  .admin-sidebar .nav-link {
    justify-content: center;
    padding: 12px;
  }
  .admin-sidebar .user-chip {
    justify-content: center;
  }
  .admin-main {
    margin-left: 76px;
    padding: 20px;
  }
}

/* ----- Responsive: mobile (≤ 620px) ----- */
@media (max-width: 620px) {
  .admin-sidebar {
    width: 280px;
    transform: translateX(-105%);
    transition: transform 0.25s ease;
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }
  .admin-sidebar .brand-name,
  .admin-sidebar .nav-label,
  .admin-sidebar .nav-text,
  .admin-sidebar .user-meta {
    display: block;
  }
  .admin-sidebar .brand {
    justify-content: flex-start;
  }
  .admin-sidebar .nav-link {
    justify-content: flex-start;
  }
  .admin-main {
    margin-left: 0;
    padding: 16px;
  }
}

/* ============================================================
   SIDEBAR TOGGLE - Mobile Fix
   ============================================================ */

/* The button itself – hidden on desktop */
.mobile-toggle {
  display: none;
}

/* On mobile, show the button and make sidebar slide */
@media (max-width: 620px) {
  .mobile-toggle {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    position: fixed;
    right: 14px;
    top: 14px;
    z-index: 9999; /* high to stay on top */
    width: 44px;
    height: 44px;
    border: 1px solid var(--line, #e6ebf2);
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    font-size: 22px;
    color: #0f1a2e;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    cursor: pointer;
  }

  /* Hide the button when sidebar is open (optional) */
  .admin-sidebar.open ~ .mobile-toggle {
    display: none !important;
  }

  /* Sidebar slides from left */
  .admin-sidebar {
    transform: translateX(-105%);
    transition: transform 0.3s ease;
    width: 280px;
  }
  .admin-sidebar.open {
    transform: translateX(0);
  }

  /* Overlay */
  .admin-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 40;
    backdrop-filter: blur(4px);
  }
  .admin-overlay.show {
    display: block;
  }

  /* Main content shift */
  .admin-main {
    margin-left: 0 !important;
  }
}

/* ============================================================
   PRELOADER – full-screen loading animation
   ============================================================ */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--bg, #f0f4f8);
    z-index: 99999;               /* highest */
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.6s ease;
    opacity: 1;
    pointer-events: all;
}
#preloader.hide {
    opacity: 0;
    pointer-events: none;
}

.preloader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--line, #d0d7de);
    border-top-color: var(--primary, #2a6df4);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Dark mode support */
html.dark #preloader {
    background: var(--bg, #0b1424);
}