/* ============================================================
   admin.css — Admin panel specific styles
   Link di setiap halaman admin:
   <link rel="stylesheet" href="/css/admin.css">
   ============================================================ */

/* ── Tabs ───────────────────────────────────────────────── */
.admin-tabs { display:flex; gap:4px; background:#f1f5f9; border-radius:14px; padding:4px; margin-bottom:24px; flex-wrap:wrap; }
.admin-tab { padding:9px 16px; border-radius:10px; border:none; background:transparent; font-family:'Plus Jakarta Sans',sans-serif; font-weight:600; font-size:.82rem; color:#64748b; cursor:pointer; transition:all .2s; display:flex; align-items:center; gap:6px; }
.admin-tab svg { width:14px; height:14px; flex-shrink:0; }
.admin-tab:hover { color:#334155; background:rgba(255,255,255,.5); }
.admin-tab.active { background:white; color:#1e293b; box-shadow:0 2px 8px rgba(0,0,0,.08); }
.admin-section { display:none; }
.admin-section.active { display:block; }

/* ── Stats row ──────────────────────────────────────────── */
.stats-row { display:grid; grid-template-columns:repeat(4,1fr); gap:16px; margin-bottom:24px; }

/* ── Action dropdown ────────────────────────────────────── */
.action-menu { position:relative; display:inline-block; }
.action-dropdown { position:absolute; right:0; top:100%; background:white; border:1px solid #e2e8f0; border-radius:12px; box-shadow:0 8px 24px rgba(0,0,0,.10); min-width:160px; z-index:100; overflow:hidden; display:none; }
.action-dropdown.open { display:block; }
.action-item { padding:10px 16px; font-size:.82rem; cursor:pointer; transition:background .15s; display:flex; align-items:center; gap:8px; color:#334155; }
.action-item svg { width:14px; height:14px; flex-shrink:0; }
.action-item:hover { background:#f8fafc; }
.action-item.danger { color:#ef4444; }
.action-item.danger:hover { background:#fef2f2; }

/* ── Search bar ─────────────────────────────────────────── */
.search-bar { display:flex; gap:10px; margin-bottom:16px; flex-wrap:wrap; }
.search-bar .form-control { flex:1; min-width:200px; }

/* ── Payment admin row (legacy) ─────────────────────────── */
.payment-admin-row { display:flex; align-items:center; justify-content:space-between; padding:14px 0; border-bottom:1px solid #f8fafc; flex-wrap:wrap; gap:10px; }
.payment-admin-row:last-child { border:none; }

/* ── Announcement form ──────────────────────────────────── */
.announcement-form { background:#f8fafc; border-radius:14px; padding:20px; margin-bottom:20px; }

/* ── Report stat (old) ──────────────────────────────────── */
.report-stat { background:white; border-radius:14px; padding:20px; border:1px solid #e2e8f0; text-align:center; }
.report-stat-val { font-family:'Plus Jakarta Sans',sans-serif; font-weight:900; font-size:2rem; color:#1e293b; }
.report-stat-lbl { font-size:.78rem; color:#94a3b8; margin-top:4px; }

/* ── Bar chart (overview) ───────────────────────────────── */
.bar-chart { display:flex; align-items:flex-end; gap:8px; height:160px; padding:10px 0; }
.bar-item { flex:1; display:flex; flex-direction:column; align-items:center; gap:6px; }
.bar-fill { width:100%; border-radius:6px 6px 0 0; transition:height .5s ease; min-height:4px; background:linear-gradient(180deg,#4a6fd4,#123191); }
.bar-label { font-size:.68rem; color:#94a3b8; white-space:nowrap; }
.bar-val { font-size:.68rem; font-weight:700; color:#475569; }

/* ── Kelas cards ────────────────────────────────────────── */
.kelas-card { background:white; border-radius:16px; border:1.5px solid #e2e8f0; padding:18px 20px; transition:all .2s; }
.kelas-card:hover { border-color:#adc0f0; box-shadow:0 4px 16px rgba(37,99,235,.08); transform:translateY(-2px); }
.kelas-kode { display:inline-flex; align-items:center; gap:5px; background:#e8eeff; color:#123191; font-weight:700; font-size:.72rem; padding:3px 10px; border-radius:6px; letter-spacing:.04em; font-family:monospace; }
.kelas-nama { font-family:'Plus Jakarta Sans',sans-serif; font-weight:700; font-size:.95rem; color:#0f172a; margin:6px 0 4px; }
.kelas-meta { display:flex; flex-wrap:wrap; gap:10px; font-size:.76rem; color:#64748b; }
.kelas-meta-item { display:flex; align-items:center; gap:4px; }
.kelas-meta-item svg { width:12px; height:12px; flex-shrink:0; }
.kelas-actions { display:flex; gap:8px; margin-top:14px; padding-top:14px; border-top:1px solid #f1f5f9; flex-wrap:wrap; }

/* ── Filter chips ───────────────────────────────────────── */
.filter-chips { display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
.filter-chip { padding:6px 14px; border-radius:999px; border:1.5px solid #e2e8f0; background:white; font-size:.78rem; font-weight:600; color:#475569; cursor:pointer; transition:all .2s; }
.filter-chip:hover { border-color:#7da0e8; color:#123191; }
.filter-chip.active { background:#123191; border-color:#123191; color:white; }

/* ── Kelas detail header ────────────────────────────────── */
.kelas-detail-header { background:linear-gradient(135deg,#0e2678,#123191); border-radius:16px; padding:24px; margin-bottom:20px; color:white; position:relative; overflow:hidden; }
.kelas-detail-header::before { content:''; position:absolute; top:-40px; right:-40px; width:160px; height:160px; border-radius:50%; background:rgba(255,255,255,.07); }
.kd-stats { display:flex; gap:20px; flex-wrap:wrap; margin-top:16px; }
.kd-stat { text-align:center; }
.kd-stat-val { font-family:'Plus Jakarta Sans',sans-serif; font-weight:900; font-size:1.4rem; color:white; }
.kd-stat-lbl { font-size:.7rem; color:rgba(255,255,255,.7); }
.kd-stat-div { width:1px; background:rgba(255,255,255,.2); }

/* ── Reports ────────────────────────────────────────────── */
.report-tabs { display:flex; gap:4px; background:#f1f5f9; border-radius:12px; padding:4px; margin-bottom:20px; flex-wrap:wrap; }
.report-tab { padding:8px 16px; border-radius:8px; border:none; background:transparent; font-size:.8rem; font-weight:600; color:#64748b; cursor:pointer; transition:all .2s; }
.report-tab.active { background:white; color:#1e293b; box-shadow:0 2px 6px rgba(0,0,0,.08); }
.report-section { display:none; }
.report-section.active { display:block; }
.kpi-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:20px; }
.kpi-card { background:white; border-radius:14px; border:1px solid #e2e8f0; padding:18px 20px; }
.kpi-label { font-size:.72rem; font-weight:700; color:#64748b; text-transform:uppercase; letter-spacing:.05em; margin-bottom:6px; }
.kpi-val { font-family:'Plus Jakarta Sans',sans-serif; font-weight:900; font-size:1.6rem; color:#0f172a; line-height:1; }
.kpi-sub { font-size:.75rem; color:#94a3b8; margin-top:5px; }
.kpi-trend-up { color:#10b981; font-weight:700; }
.kpi-trend-dn { color:#ef4444; font-weight:700; }
.chart-bar-wrap { display:flex; align-items:flex-end; gap:6px; height:140px; padding:4px 0; }
.chart-bar-col { flex:1; display:flex; flex-direction:column; align-items:center; gap:4px; min-width:0; }
.chart-bar-fill { width:100%; border-radius:5px 5px 0 0; transition:height .5s; min-height:3px; }
.chart-bar-lbl { font-size:.6rem; color:#94a3b8; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:100%; text-align:center; }
.chart-bar-val { font-size:.62rem; font-weight:700; color:#475569; }
.report-table { width:100%; border-collapse:collapse; font-size:.82rem; }
.report-table th { padding:10px 12px; text-align:left; font-size:.72rem; font-weight:700; color:#94a3b8; text-transform:uppercase; letter-spacing:.04em; border-bottom:2px solid #f1f5f9; }
.report-table td { padding:10px 12px; border-bottom:1px solid #f8fafc; color:#334155; }
.report-table tr:hover td { background:#f8fafc; }
.funnel-step { display:flex; align-items:center; gap:12px; padding:14px; background:#f8fafc; border-radius:12px; margin-bottom:8px; }
.funnel-num { font-family:'Plus Jakarta Sans',sans-serif; font-weight:900; font-size:1.4rem; min-width:70px; }
.funnel-bar-wrap { flex:1; }
.funnel-bar { height:10px; border-radius:5px; transition:width .6s; }
.funnel-label { font-weight:600; font-size:.82rem; color:#1e293b; }
.funnel-sub { font-size:.72rem; color:#94a3b8; margin-top:2px; }
.export-bar { display:flex; align-items:center; justify-content:space-between; margin-bottom:20px; flex-wrap:wrap; gap:10px; }
.period-select { display:flex; gap:6px; flex-wrap:wrap; }
.period-btn { padding:6px 14px; border-radius:999px; border:1.5px solid #e2e8f0; background:white; font-size:.76rem; font-weight:600; color:#475569; cursor:pointer; transition:all .2s; }
.period-btn.active { background:#123191; border-color:#123191; color:white; }

/* ══════════════════════════════════════
   PAY SECTION — Kelola Pembayaran
══════════════════════════════════════ */
.pay-section {
  --pay-radius:14px; --pay-radius-sm:9px;
  --pay-border:#e8edf5; --pay-bg-card:#ffffff; --pay-bg-surface:#f6f8fc;
  --pay-text-primary:#0f172a; --pay-text-secondary:#64748b; --pay-text-muted:#94a3b8;
  --pay-blue:#123191; --pay-blue-light:#e8eeff;
  --pay-green:#16a34a; --pay-green-light:#f0fdf4;
  --pay-amber:#d97706; --pay-amber-light:#fffbeb;
  --pay-red:#dc2626; --pay-red-light:#fef2f2;
  --pay-purple:#7c3aed; --pay-purple-light:#f5f3ff;
  --pay-shadow-sm:0 1px 3px rgba(15,23,42,.06),0 1px 2px rgba(15,23,42,.04);
  --pay-shadow:0 4px 16px rgba(15,23,42,.07),0 1px 4px rgba(15,23,42,.04);
}
.pay-stats { display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-bottom:20px; }
.pay-stat-card { background:var(--pay-bg-card); border:1px solid var(--pay-border); border-radius:var(--pay-radius); padding:18px 20px; box-shadow:var(--pay-shadow-sm); transition:box-shadow .15s; }
.pay-stat-card:hover { box-shadow:var(--pay-shadow); }
.pay-stat-label { font-size:.68rem; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--pay-text-muted); margin-bottom:10px; }
.pay-stat-value { font-size:1.65rem; font-weight:800; color:var(--pay-text-primary); line-height:1; }
.pay-stat-card.--pending .pay-stat-value { color:var(--pay-amber); }
.pay-stat-card.--paid    .pay-stat-value { color:var(--pay-green); }
.pay-stat-card.--revenue .pay-stat-value { color:var(--pay-blue); font-size:1.25rem; }
.pay-toolbar { background:var(--pay-bg-card); border:1px solid var(--pay-border); border-radius:var(--pay-radius); padding:16px 18px; margin-bottom:16px; box-shadow:var(--pay-shadow-sm); display:flex; flex-direction:column; gap:12px; }
.pay-date-pills { display:flex; gap:6px; flex-wrap:wrap; align-items:center; }
.pay-date-pill { padding:6px 14px; border-radius:30px; border:1.5px solid var(--pay-border); background:var(--pay-bg-surface); font-size:.78rem; font-weight:600; color:var(--pay-text-secondary); cursor:pointer; transition:all .15s; white-space:nowrap; user-select:none; }
.pay-date-pill:hover { border-color:var(--pay-blue); color:var(--pay-blue); background:var(--pay-blue-light); }
.pay-date-pill.--active { border-color:var(--pay-blue); background:var(--pay-blue); color:#fff; }
.pay-custom-range { display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.pay-custom-range label { font-size:.76rem; font-weight:600; color:var(--pay-text-secondary); white-space:nowrap; }
.pay-date-input { padding:6px 10px; border:1.5px solid var(--pay-border); border-radius:var(--pay-radius-sm); font-size:.8rem; color:var(--pay-text-primary); background:var(--pay-bg-surface); outline:none; transition:border-color .15s; width:140px; }
.pay-date-input:focus { border-color:var(--pay-blue); background:#fff; }
.pay-filters-row { display:flex; gap:10px; flex-wrap:wrap; }
.pay-search-wrap { position:relative; flex:1; min-width:200px; }
.pay-search-wrap svg { position:absolute; left:10px; top:50%; transform:translateY(-50%); color:var(--pay-text-muted); pointer-events:none; width:15px; height:15px; }
.pay-search-input { width:100%; padding:8px 10px 8px 34px; border:1.5px solid var(--pay-border); border-radius:var(--pay-radius-sm); font-size:.82rem; color:var(--pay-text-primary); background:var(--pay-bg-surface); outline:none; transition:border-color .15s; box-sizing:border-box; }
.pay-search-input:focus { border-color:var(--pay-blue); background:#fff; }
.pay-search-input::placeholder { color:var(--pay-text-muted); }
.pay-status-select { padding:8px 30px 8px 12px; border:1.5px solid var(--pay-border); border-radius:var(--pay-radius-sm); font-size:.82rem; color:var(--pay-text-primary); background:var(--pay-bg-surface); outline:none; cursor:pointer; appearance:none; background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' fill='none' stroke='%2394a3b8' stroke-width='2' viewBox='0 0 24 24'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E"); background-repeat:no-repeat; background-position:right 8px center; transition:border-color .15s; }
.pay-status-select:focus { border-color:var(--pay-blue); }
.pay-btn-refresh { display:flex; align-items:center; gap:6px; padding:8px 14px; border-radius:var(--pay-radius-sm); border:1.5px solid var(--pay-border); background:var(--pay-bg-surface); font-size:.8rem; font-weight:600; color:var(--pay-text-secondary); cursor:pointer; transition:all .15s; white-space:nowrap; }
.pay-btn-refresh:hover { border-color:var(--pay-blue); color:var(--pay-blue); background:var(--pay-blue-light); }
.pay-btn-refresh svg { width:14px; height:14px; }
.pay-btn-refresh.--loading svg { animation:pay-spin 1s linear infinite; }
@keyframes pay-spin { to { transform:rotate(360deg); } }
.pay-period-badge { font-size:.72rem; color:var(--pay-text-muted); display:flex; align-items:center; gap:5px; }
.pay-period-badge svg { width:12px; height:12px; }
.pay-list { display:flex; flex-direction:column; gap:10px; }
.pay-card { background:var(--pay-bg-card); border:1.5px solid var(--pay-border); border-radius:var(--pay-radius); padding:14px 18px; box-shadow:var(--pay-shadow-sm); transition:box-shadow .15s,border-color .15s; position:relative; overflow:hidden; }
.pay-card:hover { box-shadow:var(--pay-shadow); border-color:#d4dde8; }
.pay-card::before { content:''; position:absolute; left:0; top:0; bottom:0; width:3px; border-radius:0 2px 2px 0; background:var(--pay-border); }
.pay-card.--paid::before   { background:var(--pay-green); }
.pay-card.--pending::before { background:var(--pay-amber); }
.pay-card.--failed::before  { background:var(--pay-red); }
.pay-card.--expired::before { background:var(--pay-text-muted); }
.pay-badge { display:inline-flex; align-items:center; gap:4px; padding:3px 10px; border-radius:20px; font-size:.68rem; font-weight:700; letter-spacing:.03em; white-space:nowrap; }
.pay-badge.--paid    { background:var(--pay-green-light);  color:var(--pay-green);  }
.pay-badge.--pending { background:var(--pay-amber-light);  color:var(--pay-amber);  }
.pay-badge.--failed  { background:var(--pay-red-light);    color:var(--pay-red);    }
.pay-badge.--expired { background:#f1f5f9; color:var(--pay-text-muted); }
.pay-badge.--semester{ background:var(--pay-purple-light); color:var(--pay-purple); }
.pay-badge svg { width:8px; height:8px; }
.pay-order-id { font-size:.72rem; font-family:'DM Mono','Courier New',monospace; color:var(--pay-blue); font-weight:500; cursor:pointer; transition:opacity .15s; }
.pay-order-id:hover { opacity:.7; }
.pay-package-name { font-size:.88rem; font-weight:700; color:var(--pay-text-primary); }
.pay-price { font-size:1rem; font-weight:800; color:var(--pay-text-primary); letter-spacing:-.01em; white-space:nowrap; }
.pay-actions { display:flex; gap:6px; flex-wrap:wrap; justify-content:flex-end; }
.pay-btn { display:inline-flex; align-items:center; gap:5px; padding:6px 13px; border-radius:var(--pay-radius-sm); border:1.5px solid transparent; font-size:.75rem; font-weight:600; cursor:pointer; transition:all .14s; white-space:nowrap; }
.pay-btn svg { width:12px; height:12px; }
.pay-btn.--outline { border-color:var(--pay-border); background:var(--pay-bg-surface); color:var(--pay-text-secondary); }
.pay-btn.--outline:hover { border-color:var(--pay-blue); color:var(--pay-blue); background:var(--pay-blue-light); }
.pay-btn.--confirm { background:var(--pay-green-light); border-color:#bbf7d0; color:var(--pay-green); }
.pay-btn.--confirm:hover { background:#dcfce7; }
.pay-btn.--reject { background:var(--pay-red-light); border-color:#fecaca; color:var(--pay-red); }
.pay-btn.--reject:hover { background:#fee2e2; }
.pay-btn:disabled { opacity:.45; cursor:not-allowed; pointer-events:none; }
.pay-empty { text-align:center; padding:56px 24px; color:var(--pay-text-muted); }
.pay-empty svg { width:48px; height:48px; margin-bottom:12px; opacity:.35; display:block; margin-left:auto; margin-right:auto; }
.pay-empty-title { font-size:.9rem; font-weight:700; color:var(--pay-text-secondary); margin-bottom:4px; }
.pay-empty-desc { font-size:.8rem; }
.pay-skeleton { background:linear-gradient(90deg,#f1f5f9 25%,#e2e8f0 50%,#f1f5f9 75%); background-size:200% 100%; animation:pay-shimmer 1.4s infinite; border-radius:var(--pay-radius); height:90px; }
@keyframes pay-shimmer { 0%{background-position:200% 0;} 100%{background-position:-200% 0;} }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media(max-width:1024px) { .stats-row { grid-template-columns:repeat(2,1fr); } }
@media(max-width:900px)  { .kpi-grid { grid-template-columns:repeat(2,1fr); } }
@media(max-width:600px)  { .stats-row { grid-template-columns:1fr; } }
@media(max-width:500px)  { .kpi-grid { grid-template-columns:1fr; } }

@media(max-width:768px) {
  .admin-tabs { flex-wrap:nowrap !important; overflow-x:auto; -webkit-overflow-scrolling:touch; scrollbar-width:none; gap:4px; padding:4px; margin-bottom:16px; }
  .admin-tabs::-webkit-scrollbar { display:none; }
  .admin-tab { flex-direction:column !important; align-items:center !important; justify-content:center !important; white-space:nowrap; flex-shrink:0; padding:8px 12px !important; font-size:.68rem !important; gap:4px !important; min-width:60px; }
  .admin-tab svg { width:16px !important; height:16px !important; display:block !important; }
  .stats-row { grid-template-columns:repeat(2,1fr) !important; gap:10px; margin-bottom:16px; }
  .kpi-grid { grid-template-columns:repeat(2,1fr) !important; }
  #pay-summary-cards { grid-template-columns:repeat(2,1fr) !important; gap:10px !important; }
  #section-overview .grid-2 { grid-template-columns:1fr !important; gap:16px !important; }
  #section-overview .card { padding:18px 16px !important; }
  .card { padding:18px 16px; }
  .stat-card { padding:14px 12px; gap:10px; }
  .search-bar { flex-direction:column; gap:8px; }
  .search-bar > * { width:100% !important; min-width:unset !important; }
  #kelas-grid { grid-template-columns:1fr !important; }
  #kelas-list-view > div:first-child { flex-direction:column; align-items:flex-start; gap:10px; }
  #kelas-list-view > div:first-child > div:last-child { width:100%; }
  #kelas-list-view > div:first-child > div:last-child input { width:100% !important; }
  .filter-chips { flex-wrap:nowrap; overflow-x:auto; scrollbar-width:none; padding-bottom:4px; }
  .filter-chips::-webkit-scrollbar { display:none; }
  .filter-chip { flex-shrink:0; }
  .kelas-actions { gap:6px; }
  .kelas-actions .btn { flex:1; justify-content:center; font-size:.75rem; }
  .card-header { flex-wrap:wrap !important; gap:10px; }
  .card-header > div:last-child > div { flex-direction:column; gap:8px; }
  .card-header > div:last-child input,
  .card-header > div:last-child select { width:100% !important; min-width:unset !important; }
  .payment-admin-row { flex-direction:column; align-items:flex-start; gap:8px; padding:12px 0; }
  .pay-stats { grid-template-columns:repeat(2,1fr) !important; gap:10px !important; }
  .pay-date-pills { gap:4px !important; }
  .pay-date-pill { padding:5px 10px !important; font-size:.72rem !important; }
  .pay-card > div:first-child { flex-wrap:wrap !important; }
  .pay-card > div:first-child > div:last-child { width:100% !important; margin-left:0 !important; justify-content:space-between !important; }
  .export-bar { flex-direction:column; align-items:flex-start; gap:12px; }
  .period-select { width:100%; justify-content:space-between; }
  .period-btn { flex:1; text-align:center; }
  .report-tabs { flex-wrap:nowrap; overflow-x:auto; scrollbar-width:none; }
  .report-tabs::-webkit-scrollbar { display:none; }
  .report-tab { flex-shrink:0; white-space:nowrap; }
  .funnel-step { gap:8px; padding:10px; }
  .funnel-num { font-size:1.1rem; min-width:50px; }
  .modal { width:calc(100vw - 32px) !important; max-width:unset !important; }
  .bar-chart, .chart-bar-wrap { height:110px; }
}

@media(max-width:480px) {
  .stats-row { grid-template-columns:1fr !important; }
  #pay-summary-cards { grid-template-columns:1fr !important; }
  .kpi-grid { grid-template-columns:1fr !important; }
  .admin-tab { min-width:52px; padding:7px 8px !important; font-size:.64rem !important; }
  .kelas-card { padding:12px 14px; }
  .pay-stats { grid-template-columns:1fr 1fr !important; }
}