/* assets/css/admin.css */
:root {
  --primary: #0f172a;
  --accent:  #6366f1;
  --accent2: #22d3ee;
  --success: #10b981;
  --warning: #f59e0b;
  --danger:  #ef4444;
  --sidebar-w: 260px;
  --topbar-h:  64px;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --text: #1e293b;
  --text-muted: #64748b;
  --border: #e2e8f0;
  font-family: 'DM Sans', sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Sidebar ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--primary);
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease;
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 20px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.brand-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 18px;
  flex-shrink: 0;
}

.brand-text {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 15px;
  color: #fff;
  white-space: nowrap;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  padding: 12px 10px 4px;
  margin-top: 4px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.2s;
  position: relative;
}

.nav-item:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
}

.nav-item.active {
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99,102,241,0.4);
}

.nav-item i { width: 18px; text-align: center; font-size: 15px; }
.nav-item .badge-count {
  background: var(--danger);
  color: #fff;
  font-size: 10px;
  padding: 2px 6px;
  border-radius: 10px;
  margin-left: auto;
}

.logout-item { color: rgba(239,68,68,0.7); margin-top: auto; }
.logout-item:hover { background: rgba(239,68,68,0.1); color: var(--danger); }

/* ── Main content ───────────────────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left 0.3s;
}

.topbar {
  height: var(--topbar-h);
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0; z-index: 100;
  gap: 16px;
}

.topbar-left { display: flex; align-items: center; gap: 16px; }
.topbar-right { display: flex; align-items: center; gap: 16px; }

.sidebar-toggle {
  background: none; border: none;
  width: 36px; height: 36px;
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  cursor: pointer; font-size: 16px;
  transition: all 0.2s;
}
.sidebar-toggle:hover { background: var(--bg); color: var(--text); }

.page-title {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.admin-info { display: flex; align-items: center; gap: 10px; }
.admin-avatar {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 15px;
}
.admin-details { display: flex; flex-direction: column; }
.admin-name { font-size: 13px; font-weight: 600; color: var(--text); }
.admin-role { font-size: 11px; color: var(--text-muted); }

.content-wrapper { padding: 24px; flex: 1; }

/* ── Cards ──────────────────────────────────────────────── */
.stat-card {
  background: var(--card-bg);
  border-radius: 14px;
  padding: 24px;
  border: 1px solid var(--border);
  transition: all 0.25s;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: 14px 14px 0 0;
}
.stat-card.accent::before  { background: linear-gradient(90deg, var(--accent), var(--accent2)); }
.stat-card.success::before { background: linear-gradient(90deg, var(--success), #34d399); }
.stat-card.warning::before { background: linear-gradient(90deg, var(--warning), #fcd34d); }
.stat-card.danger::before  { background: linear-gradient(90deg, var(--danger), #f87171); }

.stat-card:hover { transform: translateY(-3px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }

.stat-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px; margin-bottom: 16px;
}
.stat-icon.accent  { background: rgba(99,102,241,0.1); color: var(--accent); }
.stat-icon.success { background: rgba(16,185,129,0.1); color: var(--success); }
.stat-icon.warning { background: rgba(245,158,11,0.1); color: var(--warning); }
.stat-icon.danger  { background: rgba(239,68,68,0.1); color: var(--danger); }
.stat-icon.cyan    { background: rgba(34,211,238,0.1); color: var(--accent2); }

.stat-value {
  font-family: 'Syne', sans-serif;
  font-size: 28px; font-weight: 800;
  color: var(--text); line-height: 1;
  margin-bottom: 6px;
}
.stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }

/* ── Data Tables ─────────────────────────────────────────── */
.data-card {
  background: var(--card-bg);
  border-radius: 14px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.data-card-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; flex-wrap: wrap;
}

.data-card-title {
  font-family: 'Syne', sans-serif;
  font-size: 16px; font-weight: 700;
  color: var(--text);
}

.data-table { width: 100%; border-collapse: collapse; }
.data-table thead th {
  background: #f8fafc;
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.data-table tbody td {
  padding: 13px 16px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #f8fafc; }

/* ── Badges ──────────────────────────────────────────────── */
.badge-status {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px;
  font-size: 11px; font-weight: 600;
}
.badge-status::before { content:''; width:6px; height:6px; border-radius:50%; }
.badge-active   { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-active::before { background: var(--success); }
.badge-inactive { background: rgba(100,116,139,0.1); color: var(--text-muted); }
.badge-inactive::before { background: var(--text-muted); }
.badge-pending  { background: rgba(245,158,11,0.1); color: var(--warning); }
.badge-pending::before  { background: var(--warning); }
.badge-approved { background: rgba(16,185,129,0.1); color: var(--success); }
.badge-approved::before { background: var(--success); }
.badge-rejected { background: rgba(239,68,68,0.1); color: var(--danger); }
.badge-rejected::before { background: var(--danger); }

/* ── Buttons ─────────────────────────────────────────────── */
.btn-primary-custom {
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #fff; border: none;
  padding: 9px 20px; border-radius: 8px;
  font-size: 13px; font-weight: 600;
  cursor: pointer; transition: all 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
  text-decoration: none;
}
.btn-primary-custom:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99,102,241,0.4);
  color: #fff;
}
.btn-success-custom {
  background: linear-gradient(135deg, var(--success), #34d399);
  color: #fff; border: none;
  padding: 7px 16px; border-radius: 7px;
  font-size: 12px; font-weight: 600; cursor: pointer;
  transition: all 0.2s; display: inline-flex; align-items: center; gap: 6px;
  text-decoration: none;
}
.btn-danger-custom {
  background: linear-gradient(135deg, var(--danger), #f87171);
  color: #fff; border: none;
  padding: 7px 16px; border-radius: 7px;
  font-size: 12px; font-weight: 600; cursor: pointer;
  transition: all 0.2s; display: inline-flex; align-items: center; gap: 6px;
}
.btn-icon {
  width: 30px; height: 30px;
  border-radius: 7px; border: none;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px; cursor: pointer; transition: all 0.2s;
}
.btn-icon-primary { background: rgba(99,102,241,0.1); color: var(--accent); }
.btn-icon-primary:hover { background: var(--accent); color: #fff; }
.btn-icon-danger  { background: rgba(239,68,68,0.1); color: var(--danger); }
.btn-icon-danger:hover  { background: var(--danger); color: #fff; }

/* ── Forms ───────────────────────────────────────────────── */
.form-card {
  background: var(--card-bg);
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 28px;
}
.form-label-custom {
  font-size: 13px; font-weight: 600;
  color: var(--text); margin-bottom: 6px;
  display: block;
}
.form-control-custom {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-control-custom:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
  background: #fff;
}
.form-group { margin-bottom: 18px; }

/* ── Alerts ──────────────────────────────────────────────── */
.alert-custom {
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 13.5px;
  margin-bottom: 18px;
  display: flex; align-items: center; gap: 10px;
}
.alert-success-custom { background: rgba(16,185,129,0.1); color: #065f46; border: 1px solid rgba(16,185,129,0.3); }
.alert-danger-custom  { background: rgba(239,68,68,0.1);  color: #7f1d1d; border: 1px solid rgba(239,68,68,0.3); }

/* ── Search bar ──────────────────────────────────────────── */
.search-box {
  position: relative;
  display: flex; align-items: center;
}
.search-box i {
  position: absolute; left: 12px;
  color: var(--text-muted); font-size: 13px;
}
.search-box input {
  padding: 8px 12px 8px 34px;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 13px;
  background: var(--bg);
  outline: none;
  width: 220px;
}
.search-box input:focus {
  border-color: var(--accent);
  background: #fff;
}

/* ── Tree ────────────────────────────────────────────────── */
.tree-wrapper { overflow-x: auto; padding: 20px; }
.tree-node {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}
.tree-card {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 12px;
  padding: 12px 18px;
  text-align: center;
  min-width: 140px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.tree-card:hover { border-color: var(--accent); box-shadow: 0 4px 16px rgba(99,102,241,0.2); }
.tree-card.sponsor { border-color: var(--accent); background: rgba(99,102,241,0.05); }
.tree-card .member-id { font-size: 11px; color: var(--text-muted); margin-bottom: 4px; }
.tree-card .member-name { font-size: 13px; font-weight: 600; color: var(--text); }
.tree-card .member-pkg { font-size: 11px; color: var(--accent); margin-top: 3px; }
.tree-children {
  display: flex;
  gap: 20px;
  padding-top: 0;
  position: relative;
}
.tree-connector {
  width: 2px;
  height: 20px;
  background: var(--border);
  margin: 0 auto;
}
.tree-children-connector {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--border);
}

/* ── Login page ──────────────────────────────────────────── */
.login-page {
  min-height: 100vh;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
}
.login-card {
  background: #fff;
  border-radius: 20px;
  padding: 40px;
  width: 100%; max-width: 420px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.login-logo {
  text-align: center;
  margin-bottom: 30px;
}
.login-logo .logo-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: #fff;
  margin: 0 auto 14px;
}
.login-logo h1 {
  font-family: 'Syne', sans-serif;
  font-size: 22px; font-weight: 800;
  color: var(--text);
}
.login-logo p { font-size: 13px; color: var(--text-muted); }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .content-wrapper { padding: 16px; }
  .topbar { padding: 0 16px; }
}

/* ── Pagination ──────────────────────────────────────────── */
.pagination .page-link {
  border-color: var(--border);
  color: var(--text);
  font-size: 13px;
}
.pagination .page-item.active .page-link {
  background: var(--accent);
  border-color: var(--accent);
}

/* ── Progress / stats mini ──────────────────────────────── */
.mini-stat {
  display: flex; align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.mini-stat:last-child { border-bottom: none; }
.mini-stat-label { font-size: 13px; color: var(--text-muted); }
.mini-stat-value { font-size: 14px; font-weight: 700; color: var(--text); }