/* ===== ADMIN DASHBOARD — CARBON STYLES ===== */

/* ── Layout ── */
.admin-layout { display: flex; min-height: 100vh; }

.admin-sidebar {
  width: 240px; background: rgba(12,12,15,0.45);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--glass-border);
  display: flex; flex-direction: column; position: fixed;
  top: 0; left: 0; bottom: 0; z-index: 100;
}
.admin-sidebar-header { padding: 24px 16px 16px; }
.admin-sidebar-brand { display: flex; align-items: center; gap: 10px; }
.admin-brand-icon {
  width: 36px; height: 36px;
  background: var(--primary);
  border-radius: var(--radius-sm); display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 14px; color: #fff; flex-shrink: 0;
  box-shadow: 0 2px 12px rgba(179,8,8,0.3);
}
.admin-brand-text { font-size: 16px; font-weight: 700; color: var(--text); letter-spacing: -0.3px; }
.admin-brand-sub {
  font-size: 9px; font-weight: 700; color: #fff; text-transform: uppercase;
  letter-spacing: 0.8px; margin-top: 2px; background: var(--primary);
  padding: 2px 8px; border-radius: 6px; display: inline-block;
}

.admin-sidebar-nav { flex: 1; padding: 8px 10px; overflow-y: auto; }
.admin-nav-item {
  display: flex; align-items: center; gap: 10px; padding: 10px 14px;
  border-radius: var(--radius-sm); cursor: pointer; color: var(--text3);
  font-size: 13.5px; font-weight: 500; transition: all var(--transition-fast);
  margin-bottom: 2px; border: none; background: none; width: 100%; text-align: left;
}
.admin-nav-item i { width: 18px; text-align: center; font-size: 14px; opacity: 0.6; }
.admin-nav-item:hover { background: var(--hover-bg); color: var(--text2); }
.admin-nav-item:hover i { opacity: 0.8; }
.admin-nav-item.active { background: var(--glass-bg-hover); color: var(--text); border-left: 2px solid var(--primary); padding-left: 12px; }
.admin-nav-item.active i { opacity: 1; color: var(--primary); }

.admin-sidebar-footer { padding: 14px; border-top: 1px solid var(--border); }

/* ── Main ── */
.admin-main {
  margin-left: 240px; flex: 1; padding: 32px 40px;
  min-height: 100vh; max-width: calc(100vw - 240px);
  background: var(--bg); position: relative;
}
.admin-main::before {
  content: ''; position: fixed;
  top: 0; left: 240px; right: 0; bottom: 0;
  background-image: var(--grid-pattern);
  background-size: var(--grid-size) var(--grid-size);
  pointer-events: none; z-index: 0;
}
.admin-main::after {
  content: ''; position: fixed;
  top: -100px; right: -80px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(179,8,8,0.06) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none; z-index: 0;
}
.admin-main > * { position: relative; z-index: 1; }

/* ── Welcome Banner ── */
.admin-welcome {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--primary-border); border-radius: var(--radius-lg);
  padding: 32px 36px; margin-bottom: 32px; position: relative; overflow: hidden;
}
.admin-welcome::before {
  content: ''; position: absolute; top: -60px; right: -40px;
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle, rgba(179,8,8,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.admin-welcome-title {
  font-size: clamp(1.4rem, 3vw, 1.65rem); font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text) 0%, var(--text2) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  margin-bottom: 4px;
}
.admin-welcome-sub { font-size: 14px; color: var(--text2); }
.admin-welcome-date {
  position: absolute; right: 36px; top: 50%; transform: translateY(-50%);
  font-size: 12px; color: var(--text3); font-weight: 500;
  display: flex; align-items: center; gap: 6px;
}

/* ── Page Header ── */
.admin-page-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px;
}
.admin-page-title {
  font-size: clamp(1.3rem, 2.5vw, 1.5rem); font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text) 0%, var(--text2) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.admin-page-subtitle { font-size: 13px; color: var(--text3); margin-top: 2px; }

/* ── Stats Grid ── */
.admin-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px; margin-bottom: 28px;
}
.admin-stat-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius);
  padding: 22px 24px; transition: all var(--transition-base); position: relative; overflow: hidden;
}
.admin-stat-card::before {
  content: ''; position: absolute; top: -30px; right: -30px;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(179,8,8,0.06) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none; opacity: 0;
  transition: opacity var(--transition-base);
}
.admin-stat-card:hover { border-color: var(--hover-border-strong); transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.admin-stat-card:hover::before { opacity: 1; }

.admin-stat-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.admin-stat-icon {
  width: 40px; height: 40px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center; font-size: 16px;
}
.admin-stat-icon.red { background: rgba(179,8,8,0.1); color: var(--primary); }
.admin-stat-icon.green { background: rgba(34,197,94,0.1); color: var(--success); }
.admin-stat-icon.blue { background: rgba(59,130,246,0.1); color: var(--info); }
.admin-stat-icon.orange { background: rgba(245,158,11,0.1); color: var(--warning); }
.admin-stat-icon.purple { background: rgba(139,92,246,0.1); color: #8b5cf6; }

.admin-stat-value {
  font-size: 28px; font-weight: 800; letter-spacing: -1px;
  color: var(--text); line-height: 1.1;
}
.admin-stat-label { font-size: 10px; color: var(--text3); margin-top: 4px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.admin-stat-sub { font-size: 11px; color: var(--text3); margin-top: 6px; display: flex; align-items: center; gap: 4px; }
.admin-stat-sub .up { color: var(--success); }
.admin-stat-sub .down { color: var(--danger); }

/* ── Cards ── */
.admin-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  margin-bottom: 20px; overflow: hidden;
  transition: all var(--transition-base);
}
.admin-card:hover { border-color: var(--hover-border); }
.admin-card-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 24px; border-bottom: 1px solid var(--border-subtle);
}
.admin-card-title {
  font-size: 14px; font-weight: 700; color: var(--text);
  display: flex; align-items: center; gap: 8px;
}
.admin-card-title i { color: var(--primary); font-size: 14px; opacity: 0.8; }
.admin-card-badge {
  font-size: 10px; font-weight: 700; background: var(--primary-bg);
  color: var(--primary); padding: 3px 10px; border-radius: 12px;
}
.admin-card-body { padding: 20px 24px; }
.admin-card-body.no-pad { padding: 0; }

/* ── Grids ── */
.admin-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.admin-grid-3 { display: grid; grid-template-columns: 1.6fr 1fr; gap: 20px; }
.admin-grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ── Tables ── */
.admin-table { width: 100%; border-collapse: collapse; }
.admin-table th {
  text-align: left; font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px; color: var(--text3); padding: 12px 16px;
  border-bottom: 1px solid var(--border); background: transparent;
}
.admin-table td {
  padding: 13px 16px; font-size: 13px; color: var(--text);
  border-bottom: 1px solid var(--border-subtle); vertical-align: middle;
}
.admin-table tr { transition: background var(--transition-fast); }
.admin-table tr:hover td { background: var(--hover-bg); }
.admin-table tr:last-child td { border-bottom: none; }

/* ── Badges ── */
.admin-badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 11px; font-weight: 600; padding: 4px 12px; border-radius: 20px;
}
.admin-badge.active { background: rgba(34,197,94,0.1); color: var(--success); }
.admin-badge.canceled { background: rgba(239,68,68,0.1); color: var(--danger); }
.admin-badge.past_due { background: rgba(245,158,11,0.1); color: var(--warning); }
.admin-badge.inactive { background: var(--glass-bg-hover); color: var(--text3); }

/* ── Coach/data styling ── */
.admin-coach-email { font-weight: 500; color: var(--text); }
.admin-coach-date { font-size: 12px; color: var(--text3); }
.admin-coach-mrr { font-weight: 700; color: var(--success); }

/* ── Coach Cards ── */
.admin-coach-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; }
.admin-coach-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 24px; transition: all var(--transition-base); cursor: default;
  position: relative; overflow: hidden;
}
.admin-coach-card::before {
  content: ''; position: absolute; top: -30px; right: -30px;
  width: 100px; height: 100px;
  background: radial-gradient(circle, rgba(179,8,8,0.06) 0%, transparent 70%);
  border-radius: 50%; pointer-events: none; opacity: 0;
  transition: opacity var(--transition-base);
}
.admin-coach-card:hover { border-color: var(--hover-border-strong); box-shadow: var(--shadow-card-hover); transform: translateY(-3px); }
.admin-coach-card:hover::before { opacity: 1; }
.admin-coach-card-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.admin-coach-avatar {
  width: 42px; height: 42px; border-radius: var(--radius-sm); background: var(--glass-bg-hover);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 15px; color: var(--text2); flex-shrink: 0;
}
.admin-coach-card-name { font-size: 15px; font-weight: 700; color: var(--text); }
.admin-coach-card-sub { font-size: 12px; color: var(--text3); margin-top: 1px; }
.admin-coach-card-stats { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.admin-coach-card-stat {
  background: var(--glass-bg); border-radius: var(--radius-sm); padding: 12px;
  text-align: center; border: 1px solid var(--border-subtle);
}
.admin-coach-card-stat-val { font-size: 18px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.admin-coach-card-stat-lbl { font-size: 10px; color: var(--text3); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.5px; }

/* ── Charts ── */
.admin-chart-container { position: relative; height: 280px; padding: 8px 0; }
.admin-chart-small { height: 180px; }

/* ── Metric Cards ── */
.admin-metrics-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; }
.admin-metric-item {
  background: var(--glass-bg); border: 1px solid var(--glass-border);
  border-radius: var(--radius); padding: 24px 18px; text-align: center;
  transition: all var(--transition-base); position: relative; overflow: hidden;
}
.admin-metric-item:hover { border-color: var(--hover-border); background: var(--glass-bg-hover); transform: translateY(-2px); }
.admin-metric-icon { font-size: 24px; color: var(--primary); margin-bottom: 12px; opacity: 0.8; }
.admin-metric-value { font-size: 30px; font-weight: 800; color: var(--text); letter-spacing: -1px; }
.admin-metric-label {
  font-size: 10px; color: var(--text3); margin-top: 4px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
}
.admin-metric-bar {
  height: 3px; background: var(--glass-bg-hover); border-radius: 2px; margin-top: 14px; overflow: hidden;
}
.admin-metric-bar-fill {
  height: 100%; background: linear-gradient(90deg, var(--primary), #f87171);
  border-radius: 2px; transition: width 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Activity Feed ── */
.admin-activity-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 0; border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast);
}
.admin-activity-item:last-child { border-bottom: none; }
.admin-activity-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.admin-activity-dot.payment { background: var(--success); box-shadow: 0 0 8px rgba(34,197,94,0.4); }
.admin-activity-dot.signup { background: var(--info); box-shadow: 0 0 8px rgba(59,130,246,0.4); }
.admin-activity-dot.cancel { background: var(--danger); box-shadow: 0 0 8px rgba(239,68,68,0.4); }
.admin-activity-text { flex: 1; font-size: 13px; color: var(--text); }
.admin-activity-text strong { font-weight: 600; }
.admin-activity-time { font-size: 11px; color: var(--text3); white-space: nowrap; }

/* ── Donut Legend ── */
.admin-donut-wrap { display: flex; align-items: center; gap: 24px; padding: 8px 0; }
.admin-donut-legend { display: flex; flex-direction: column; gap: 10px; }
.admin-donut-item { display: flex; align-items: center; gap: 8px; }
.admin-donut-color { width: 10px; height: 10px; border-radius: 3px; flex-shrink: 0; }
.admin-donut-label { font-size: 12px; color: var(--text2); }
.admin-donut-val { font-size: 13px; font-weight: 700; color: var(--text); margin-left: auto; }

/* ── Empty State ── */
.admin-empty {
  text-align: center; padding: 56px 24px; color: var(--text3); font-size: 14px;
}
.admin-empty i { font-size: 40px; margin-bottom: 14px; display: block; opacity: 0.3; }

/* ── Search ── */
.admin-search {
  background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-sm);
  padding: 10px 14px 10px 36px; font-size: 13px; color: var(--text);
  font-family: 'Inter', sans-serif; outline: none;
  transition: all var(--transition-fast); width: 280px;
}
.admin-search:focus { border-color: rgba(179,8,8,0.4); box-shadow: 0 0 0 3px rgba(179,8,8,0.15), 0 0 20px rgba(179,8,8,0.06); }
.admin-search-wrap { position: relative; }
.admin-search-wrap i {
  position: absolute; left: 12px; top: 50%; transform: translateY(-50%);
  color: var(--text3); font-size: 13px;
}

/* ── Sections ── */
.admin-section { display: none; }
.admin-section.active { display: block; animation: adminFadeIn 0.35s cubic-bezier(0.22, 1, 0.36, 1); }

@keyframes adminFadeIn {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .admin-grid-2, .admin-grid-3 { grid-template-columns: 1fr; }
  .admin-stats { grid-template-columns: repeat(2, 1fr); }
  .admin-coach-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; padding: 24px 20px; max-width: 100vw; }
  .admin-main::before { left: 0; }
  .admin-stats { grid-template-columns: 1fr 1fr; }
  .admin-welcome-date { display: none; }
}