:root {
  --bg: #f5f7fb;
  --bg-panel: #ffffff;
  --bg-panel-2: #f8fafc;
  --bg-elevated: #eef2ff;
  --border: #d9e2ef;
  --border-soft: #edf1f7;
  --text: #111827;
  --text-dim: #4b5563;
  --text-faint: #8792a2;
  --accent: #2563eb;
  --accent-dim: #1d4ed8;
  --accent-strong: #3b82f6;
  --accent-glow: rgba(37, 99, 235, 0.16);
  --accent-contrast: #ffffff;
  --accent-2: #0f766e;
  --accent-2-dim: rgba(15, 118, 110, 0.08);
  --ok: #15803d;
  --ok-dim: rgba(22, 163, 74, 0.11);
  --ok-contrast: #ffffff;
  --warn: #b45309;
  --warn-dim: rgba(245, 158, 11, 0.14);
  --warn-contrast: #ffffff;
  --danger: #dc2626;
  --danger-dim: rgba(220, 38, 38, 0.10);
  --danger-contrast: #ffffff;
  --radius: 12px;
  --radius-sm: 8px;
}

html,
body {
  background: var(--bg);
  color: var(--text);
}

body {
  background-image: none;
}

::selection {
  background: rgba(37, 99, 235, 0.18);
  color: var(--text);
}

::-webkit-scrollbar-thumb {
  background: #c8d4e4;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.app-shell {
  grid-template-columns: 268px minmax(0, 1fr);
  background: var(--bg);
}

.sidebar {
  background: #ffffff;
  border-right: 1px solid #dfe7f2;
  box-shadow: 10px 0 30px rgba(15, 23, 42, 0.04);
  padding: 20px 14px;
}

.brand {
  padding: 6px 8px 22px;
}

.brand h1,
.mobile-topbar-brand {
  color: #0f172a;
}

.brand .dot-grid span,
.mobile-topbar-brand .dot-grid span {
  background: #cbd5e1;
}

.brand .dot-grid span:nth-child(1),
.brand .dot-grid span:nth-child(4),
.mobile-topbar-brand .dot-grid span:nth-child(1),
.mobile-topbar-brand .dot-grid span:nth-child(4) {
  background: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.nav-section-label {
  color: #94a3b8;
  padding-left: 12px;
}

.nav-item {
  color: #475569;
  border: 1px solid transparent;
  border-radius: 10px;
  min-height: 40px;
}

.nav-item:hover {
  background: #f8fafc;
  color: #0f172a;
  border-color: #e2e8f0;
}

.nav-item.active {
  background: #eff6ff;
  color: #0f172a;
  border-color: #bfdbfe;
  box-shadow: inset 3px 0 0 var(--accent);
}

.nav-badge {
  background: #e2e8f0;
  color: #334155;
}

.nav-item.active .nav-badge {
  background: var(--accent);
  color: #ffffff;
}

.sidebar-footer {
  border-top-color: #edf2f7;
}

.fleet-mini {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  color: #64748b;
}

.fleet-mini strong {
  color: #0f172a;
}

.logout-btn {
  background: #ffffff;
  border-color: #d9e2ef;
  color: #64748b;
}

.logout-btn:hover {
  background: #fef2f2;
}

.main {
  width: 100%;
  max-width: none;
  padding: 24px 30px 48px;
}

.topbar {
  align-items: center;
  flex-wrap: wrap;
  padding: 18px 20px;
  margin-bottom: 18px;
  background: #ffffff;
  border: 1px solid #dfe7f2;
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.05);
}

.topbar h2 {
  color: #0f172a;
  font-size: 22px;
  letter-spacing: 0;
}

.topbar p {
  color: #64748b;
  max-width: 720px;
}

.topbar-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.btn,
.logout-btn,
.mobile-menu-btn,
.sidebar-close-btn {
  border-radius: 8px;
}

.btn {
  min-height: 34px;
  background: #ffffff;
  color: #1f2937;
  border-color: #d8e1ec;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
  white-space: nowrap;
}

.btn:hover {
  background: #f8fafc;
  border-color: #b6c4d6;
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.07);
}

.btn-sm {
  min-height: 30px;
  padding: 6px 10px;
  font-size: 12px;
}

.btn-accent {
  background: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.20);
}

.btn-accent:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.24);
}

/* Trạng thái chờ API khi thêm/sửa VPS: khóa nút để không tạo request trùng. */
#vpsFormSubmit:disabled,
#vpsFormSubmit:disabled:hover {
  cursor: not-allowed;
  pointer-events: none;
  opacity: 0.78;
  filter: none;
  box-shadow: none;
}

.vps-submit-spinner {
  display: none;
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 2px solid rgba(255, 255, 255, 0.45);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: vps-submit-spin 0.72s linear infinite;
}

#vpsFormSubmit.is-loading .vps-submit-spinner { display: inline-block; }

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

.btn-secondary {
  background: #eff6ff;
  color: #1d4ed8;
  border-color: #bfdbfe;
}

.btn-secondary:hover {
  background: #dbeafe;
  border-color: #93c5fd;
}

.btn-ghost {
  background: #ffffff;
  color: #475569;
  border-color: #e2e8f0;
  box-shadow: none;
}

.btn-ghost:hover {
  background: #f8fafc;
  border-color: #cbd5e1;
}

.btn-success {
  background: #ecfdf3;
  color: var(--ok);
  border-color: #bbf7d0;
}

.btn-success:hover {
  background: #dcfce7;
  border-color: #86efac;
}

/* ===== Nút hàng VPS + topbar (theme SÁNG) =============================
   PHẢI khai lại ở đây: file này nạp SAU style.css và có quy tắc
   `.btn { background:#ffffff }` cùng độ ưu tiên (0,1,0). Class mới
   .btn-row/.btn-top định nghĩa bên style.css nên bị đè trắng hết màu —
   đúng lỗi "toàn bộ button mất màu" ở theme sáng.
   Bảng màu lấy theo hệ sáng (xanh #2563eb, lục #15803d, đỏ #dc2626)
   chứ không bê nguyên màu tối sang, kẻo chữ chìm vào nền trắng. */
.btn-row, .btn-top {
    background: #ffffff;
    color: #334155;
    border-color: #d8e1ec;
}
.btn-row:hover, .btn-top:hover {
    background: #f8fafc;
    border-color: #b6c4d6;
}

/* Hành động chính — nút nền đặc duy nhất trong nhóm */
.btn-row--primary, .btn-top--primary {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 3px 10px rgba(37, 99, 235, 0.24);
}
.btn-row--primary:hover, .btn-top--primary:hover {
    background: var(--accent-dim);
    border-color: var(--accent-dim);
    box-shadow: 0 5px 14px rgba(37, 99, 235, 0.32);
    filter: none;
}

.btn-row--info {
    background: #dbeafe;
    color: #1e40af;
    border-color: #93c5fd;
}
.btn-row--info:hover { background: #dbeafe; border-color: #93c5fd; }

.btn-row--ok, .btn-top--ok {
    background: #d1fae5;
    color: #166534;
    border-color: #6ee7b7;
}
.btn-row--ok:hover, .btn-top--ok:hover { background: #dcfce7; border-color: #86efac; }

.btn-row--danger {
    background: #fee2e2;
    color: #b91c1c;
    border-color: #fca5a5;
}
.btn-row--danger:hover { background: #fee2e2; border-color: #fca5a5; }

/* Ba sắc còn lại ở theme sáng — nền nhạt + chữ đậm để nổi trên nền trắng.
   Không bê màu của theme tối sang, chữ sẽ chìm. */
/* Nền đậm hơn một bậc so với bản đầu: #f5f3ff/#f1f5f9 nhạt tới mức nhìn như
   trắng, và "slate" vốn là xám nên đọc ra thành "không có màu". */
.btn-row--violet, .btn-top--violet { background: #ddd6fe; color: #5b21b6; border-color: #a78bfa; }
.btn-row--violet:hover, .btn-top--violet:hover { background: #c4b5fd; border-color: #8b5cf6; }
.btn-row--amber,  .btn-top--amber  { background: #fef3c7; color: #b45309; border-color: #fcd34d; }
.btn-row--amber:hover,  .btn-top--amber:hover  { background: #fde68a; border-color: #f59e0b; }
/* Sửa: đổi từ xám sang chàm — vẫn dịu nhưng rõ là một màu */
.btn-row--rose, .btn-top--rose { background: #fce7f3; color: #9d174d; border-color: #f9a8d4; }
.btn-row--rose:hover, .btn-top--rose:hover { background: #fbcfe8; border-color: #f472b6; }
.vps-package-badge.v1 { color: #5b21b6; background: #ede9fe; border-color: #c4b5fd; }
.vps-package-badge.v2 { color: #92400e; background: #fef3c7; border-color: #fcd34d; }
.btn-top--solid-ok {
    background: #16a34a;
    color: #ffffff;
    border-color: #16a34a;
    box-shadow: 0 3px 10px rgba(22, 163, 74, 0.24);
}
.btn-top--solid-ok:hover {
    background: #15803d;
    border-color: #15803d;
    box-shadow: 0 5px 14px rgba(22, 163, 74, 0.32);
    filter: none;
}

.btn-top--cyan { background: #cffafe; color: #155e75; border-color: #67e8f9; }
.btn-top--cyan:hover { background: #cffafe; border-color: #67e8f9; }

.btn-danger-ghost {
  background: #fef2f2;
  color: var(--danger);
  border-color: #fecaca;
}

.btn-danger-ghost:hover {
  background: #fee2e2;
  border-color: #fca5a5;
}

.btn[data-action="restart"] {
  background: #f8fafc;
  color: #334155;
  border-color: #d8e1ec;
}

.btn[data-action="restart"]:hover {
  background: #eef2f7;
}

.btn[data-action="refresh-expiry"],
.btn[data-action="stop"],
.btn[data-action="copy-curl"] {
  background: #fffbeb;
  color: var(--warn);
  border-color: #fde68a;
}

.btn[data-action="refresh-expiry"]:hover,
.btn[data-action="stop"]:hover,
.btn[data-action="copy-curl"]:hover {
  background: #fef3c7;
  border-color: #fcd34d;
}

.btn[data-action="autozalo-sync-test"] {
  background: #f0fdfa;
  color: var(--accent-2);
  border-color: #99f6e4;
}

.btn[data-action="autozalo-sync-test"]:hover {
  background: #ccfbf1;
}

.stat-row {
  grid-template-columns: repeat(5, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat-card {
  position: relative;
  overflow: hidden;
  min-height: 88px;
  padding: 15px 16px 14px;
  background: #ffffff;
  border-color: #dfe7f2;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.045);
}

.stat-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 4px;
  background: var(--accent);
}

.stat-card:nth-child(2)::before {
  background: var(--ok);
}

.stat-card:nth-child(3)::before,
.stat-card:nth-child(5)::before {
  background: var(--danger);
}

.stat-card:nth-child(4)::before {
  background: var(--warn);
}

.stat-card .label {
  color: #64748b;
  font-size: 12px;
}

.stat-card .value {
  color: #0f172a;
  font-size: 26px;
}

.fleet-grid-head {
  padding: 0 4px;
  margin: 14px 0 8px;
}

.fleet-grid-title {
  color: #334155;
  font-weight: 700;
}

.fleet-grid-legend {
  color: #64748b;
}

.legend-dot.online {
  background: var(--ok);
  box-shadow: 0 0 0 3px var(--ok-dim);
}

.legend-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-dim);
}

.legend-dot.pending {
  background: #94a3b8;
  box-shadow: 0 0 0 3px #e2e8f0;
}

.fleet-grid {
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 8px;
  padding: 12px;
  margin-bottom: 18px;
  background: #ffffff;
  border-color: #dfe7f2;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.045);
}

.fleet-cell {
  height: 34px;
  background: #f8fafc;
  color: #475569;
  border: 1px solid #e2e8f0;
  box-shadow: none;
}

.fleet-cell:hover {
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.10);
}

.fleet-cell.online {
  background: #ecfdf3;
  color: var(--ok);
  border-color: #bbf7d0;
  box-shadow: inset 0 0 0 1px #bbf7d0;
}

.fleet-cell.offline {
  background: #fef2f2;
  color: var(--danger);
  border-color: #fecaca;
  box-shadow: inset 0 0 0 1px #fecaca;
}

.fleet-cell.pending {
  background: #f8fafc;
  color: #64748b;
}

.domain-link {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.domain-link:hover {
  text-decoration: underline;
}

.resource-stack {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 142px;
}

.resource-line {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.resource-meta {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 11px;
  color: #64748b;
  line-height: 1;
}

.resource-meta strong {
  color: #0f172a;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
}

.resource-bar {
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: #e2e8f0;
}

.resource-fill {
  height: 100%;
  border-radius: inherit;
  background: var(--ok);
}

.resource-fill.warn,
.metric-bar-fill.warn {
  background: var(--warn);
}

.resource-fill.danger,
.metric-bar-fill.danger {
  background: var(--danger);
}

.toolbar {
  padding: 12px;
  margin-bottom: 12px;
  background: #ffffff;
  border: 1px solid #dfe7f2;
  border-radius: 12px;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
}

.search-input,
select.filter-select,
.field input,
.field select,
textarea.field-textarea {
  background: #ffffff;
  border-color: #d8e1ec;
  color: #0f172a;
}

/* Mũi tên select vẽ bằng SVG nền nên phải đổi màu riêng cho theme sáng —
   màu xám của theme tối (#8891A4) chìm hẳn trên nền trắng. */
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8' fill='none'%3E%3Cpath d='M1 1.5 6 6.5l5-5' stroke='%234b5563' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  /* Phải lặp lại repeat/position: quy tắc gộp phía trên dùng shorthand `background: #fff`,
     mà shorthand reset luôn background-repeat/position về mặc định — không khai báo lại
     thì mũi tên bị lát kín ô và dính góc trên trái. */
  background-repeat: no-repeat;
  background-position: right 13px center;
}
.field select option { background: #ffffff; color: #0f172a; }

.search-input::placeholder,
.field input::placeholder,
textarea.field-textarea::placeholder {
  color: #94a3b8;
}

.search-input:focus,
select.filter-select:focus,
.field input:focus,
.field select:focus,
textarea.field-textarea:focus {
  border-color: #93c5fd;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.10);
}

.field label {
  color: #475569;
}

.field-hint,
.file-tree-path {
  color: #94a3b8;
}

.vps-table-wrap {
  background: #ffffff;
  border-color: #dfe7f2;
  box-shadow: 0 10px 28px rgba(15, 23, 42, 0.045);
  overflow-x: auto;
}

table.vps-table {
  min-width: 980px;
}

#fleetVpsTable {
  min-width: 1260px;
}

table.vps-table thead th {
  background: #f8fafc;
  color: #64748b;
  border-bottom-color: #dfe7f2;
}

table.vps-table thead th[data-sort]:hover,
table.vps-table thead th[data-sort].sorted {
  color: var(--accent);
}

table.vps-table tbody td {
  border-bottom-color: #edf2f7;
  color: #1f2937;
}

table.vps-table tbody tr:hover {
  background: #f8fbff;
}

.vps-name {
  color: #0f172a;
}

.vps-host {
  color: #64748b;
}

.row-actions {
  gap: 6px;
  flex-wrap: wrap;
}

#fleetVpsTable .row-actions {
  min-width: 370px;
}

#proxyTable .row-actions,
#proxyListTableBody .row-actions {
  min-width: 280px;
}

.icon-btn {
  background: #ffffff;
  color: #475569;
  border-color: #d8e1ec;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.icon-btn:hover {
  box-shadow: 0 4px 12px rgba(15, 23, 42, 0.10);
}

.status-pill {
  border: 1px solid transparent;
}

.status-pill.online {
  background: #ecfdf3;
  color: var(--ok);
  border-color: #bbf7d0;
}

.status-pill.offline {
  background: #fef2f2;
  color: var(--danger);
  border-color: #fecaca;
}

.status-pill.pending {
  background: #f1f5f9;
  color: #64748b;
  border-color: #e2e8f0;
}

.service-chip {
  background: #f8fafc;
  color: #475569;
  border-color: #d8e1ec;
}

.service-chip.active {
  background: #ecfdf3;
  color: var(--ok);
  border-color: #bbf7d0;
}

.service-chip.inactive {
  background: #fef2f2;
  color: var(--danger);
  border-color: #fecaca;
}

.empty-state {
  color: #64748b;
}

.empty-state h3 {
  color: #0f172a;
}

.modal-overlay {
  background: rgba(15, 23, 42, 0.42);
  backdrop-filter: blur(4px);
}

.modal {
  background: #ffffff;
  border-color: #dfe7f2;
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.24);
}

.modal-header,
.modal-footer,
.detail-header,
.tabs,
.exec-toolbar,
.editor-toolbar {
  border-color: #edf2f7;
}

.modal-header h3,
.detail-header h3 {
  color: #0f172a;
}

.modal-close {
  background: #ffffff;
  color: #64748b;
  border-color: #d8e1ec;
}

.modal-close:hover {
  background: #fef2f2;
}

.tabs {
  background: #ffffff;
}

.tab-btn {
  color: #64748b;
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.detail-metrics {
  background: #ffffff;
  border-bottom-color: #edf2f7;
}

.metric-box .label {
  color: #64748b;
}

.metric-box .val {
  color: #0f172a;
}

.metric-bar {
  background: #e2e8f0;
}

.file-tree-panel {
  background: #f8fafc;
  border-right-color: #edf2f7;
}

.file-tree-item {
  color: #475569;
}

.file-tree-item:hover {
  background: #eef6ff;
  color: #0f172a;
  border-color: #dbeafe;
}

.file-tree-item.selected {
  background: #dbeafe;
  color: var(--accent);
  border-color: #93c5fd;
}

.file-tree-item[data-isdir="true"] {
  color: var(--warn);
}

.file-tree-item[data-isdir="true"]:hover,
.file-tree-item[data-isdir="true"].selected {
  background: #fffbeb;
  color: var(--warn);
  border-color: #fde68a;
}

.editor-panel,
.editor-empty {
  background: #ffffff;
}

.editor-toolbar .file-path {
  color: #64748b;
}

.exec-toolbar {
  background: #ffffff;
}

.lang-toggle {
  border-color: #d8e1ec;
}

.lang-toggle button {
  background: #ffffff;
  color: #64748b;
}

.lang-toggle button.active {
  background: var(--accent);
  color: #ffffff;
}

.sudo-toggle {
  color: #475569;
}

.schedule-status,
.job-result-row,
.job-history-row {
  background: #f8fafc;
  border-color: #dfe7f2;
  color: #475569;
}

.schedule-status strong,
.job-result-row .name,
.job-history-row .time,
.bulk-exec-panel-head .name {
  color: #0f172a;
}

.job-result-row .msg,
.job-history-row,
.bulk-exec-panel-head .host {
  color: #64748b;
}

.update-progress-track { background: #e8eef6; border-color: #d8e2ef; }
.update-progress-counts span { background: #f8fafc; border-color: #dfe7f2; }
.update-progress-summary strong { color: #0f172a; }
.update-progress-summary span,
.update-progress-note { color: #64748b; }

.terminal-output,
.bulk-exec-panel-body,
.xterm-wrap {
  background: #05070b;
}

.terminal-output .line-meta {
  color: #94a3b8;
}

.toast {
  background: #ffffff;
  border-color: #dfe7f2;
  color: #0f172a;
  box-shadow: 0 18px 40px rgba(15, 23, 42, 0.16);
}

.toast.success {
  border-color: #86efac;
}

.toast.error {
  border-color: #fca5a5;
  color: var(--danger);
}

.zalo-config-modal {
  width: min(1180px, 94vw);
  max-width: 94vw;
}

.zalo-config-body {
  background: #f8fafc;
}

.zalo-config-page {
  background: transparent;
}

.zalo-config-status {
  padding: 10px 12px;
  margin-bottom: 12px;
  border: 1px solid #dfe7f2;
  border-radius: 10px;
  background: #ffffff;
  color: #64748b;
  font-size: 12.5px;
  word-break: break-word;
}

.zalo-config-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.zalo-config-card {
  background: #ffffff;
  border: 1px solid #dfe7f2;
  border-radius: 12px;
  padding: 14px;
  box-shadow: 0 8px 22px rgba(15, 23, 42, 0.045);
}

.zalo-config-card.span-2 {
  grid-column: span 2;
}

.zalo-config-card-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 12px;
}

.zalo-config-card h4 {
  margin: 0;
  color: #0f172a;
  font-family: var(--font-display);
  font-size: 14px;
}

.zalo-config-card p {
  margin: 4px 0 0;
  color: #64748b;
  font-size: 12.5px;
  line-height: 1.45;
}

.zalo-color-table,
.zalo-gradient-table {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.zalo-color-row,
.zalo-gradient-row {
  display: grid;
  gap: 7px;
  align-items: center;
  padding: 8px;
  border: 1px solid #edf2f7;
  border-radius: 10px;
  background: #f8fafc;
}

.zalo-color-row {
  grid-template-columns: minmax(120px, 1fr) 42px repeat(4, 62px) auto;
}

.zalo-gradient-row {
  grid-template-columns: minmax(130px, 1fr) minmax(120px, 0.8fr) 42px 42px repeat(7, 56px) auto;
}

.zalo-color-row input,
.zalo-gradient-row input {
  width: 100%;
  min-width: 0;
  background: #ffffff;
  border: 1px solid #d8e1ec;
  border-radius: 8px;
  color: #0f172a;
  padding: 7px 8px;
  font-size: 12px;
}

.zalo-color-row input[type="color"],
.zalo-gradient-row input[type="color"] {
  height: 32px;
  padding: 3px;
}

.zalo-gradient-preview {
  min-height: 32px;
  border: 1px solid #d8e1ec;
  border-radius: 8px;
  background: #ffffff;
  overflow: hidden;
  position: relative;
}

.zalo-gradient-preview::after {
  content: attr(data-count);
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  padding: 2px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.86);
  color: #334155;
  font-size: 10.5px;
  font-weight: 700;
}

.zalo-detect-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.95fr) minmax(360px, 1.05fr);
  gap: 14px;
}

.zalo-detect-panel,
.zalo-detect-result-block {
  border: 1px solid #edf2f7;
  border-radius: 10px;
  background: #f8fafc;
  padding: 12px;
}

.zalo-detect-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.zalo-file-input {
  display: none;
}

.zalo-detect-file-name {
  margin-top: 8px;
  color: #64748b;
  font-size: 12px;
  word-break: break-word;
}

.zalo-detect-canvas-wrap {
  position: relative;
  margin-top: 10px;
  min-height: 260px;
  border: 1px dashed #cbd5e1;
  border-radius: 10px;
  background: #ffffff;
  overflow: hidden;
  display: grid;
  place-items: center;
}

#zaloDetectCanvas {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 560px;
  cursor: crosshair;
}

#zaloDetectCanvas:not([width]),
#zaloDetectCanvas[width="0"] {
  display: none;
}

.zalo-detect-hint {
  position: absolute;
  inset: auto 12px 12px;
  padding: 8px 10px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  color: #64748b;
  border: 1px solid #e2e8f0;
  font-size: 12px;
  text-align: center;
}

.zalo-detect-hint.is-ready {
  color: #0f766e;
  border-color: #99f6e4;
  background: rgba(240, 253, 250, 0.95);
}

.zalo-detect-hint.is-error {
  color: #b91c1c;
  border-color: #fecaca;
  background: rgba(254, 242, 242, 0.96);
}

.zalo-detect-loupe {
  position: absolute;
  left: 0;
  top: 0;
  z-index: 5;
  width: 150px;
  padding: 8px;
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 16px 36px rgba(15, 23, 42, 0.18);
  pointer-events: none;
  display: none;
}

.zalo-detect-loupe.is-active {
  display: block;
}

.zalo-detect-loupe-title,
.zalo-detect-loupe-color {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #334155;
  font-size: 11px;
  font-weight: 700;
}

.zalo-loupe-icon {
  position: relative;
  width: 14px;
  height: 14px;
  border: 2px solid #2563eb;
  border-radius: 999px;
  flex: 0 0 auto;
}

.zalo-loupe-icon::after {
  content: "";
  position: absolute;
  width: 7px;
  height: 2px;
  right: -6px;
  bottom: -4px;
  background: #2563eb;
  border-radius: 999px;
  transform: rotate(45deg);
}

#zaloDetectLoupeCanvas {
  display: block;
  width: 112px;
  height: 112px;
  margin: 7px auto;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  image-rendering: pixelated;
  background: #ffffff;
}

.zalo-detect-loupe-swatch {
  width: 16px;
  height: 16px;
  border: 1px solid rgba(15, 23, 42, 0.22);
  border-radius: 5px;
  flex: 0 0 auto;
}

.zalo-detect-results-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.zalo-detect-gradient-picker {
  border: 1px solid #bfdbfe;
  border-radius: 10px;
  background: #eff6ff;
  padding: 12px;
}

.zalo-gradient-picked-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 42px;
}

.zalo-gradient-picked-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 8px;
  border-radius: 999px;
  border: 1px solid #cbd5e1;
  background: #ffffff;
  color: #334155;
  font-size: 12px;
  font-weight: 700;
}

.zalo-gradient-picked-chip button {
  width: 18px;
  height: 18px;
  border: 0;
  border-radius: 999px;
  background: #f1f5f9;
  color: #64748b;
  cursor: pointer;
  line-height: 18px;
  padding: 0;
}

.zalo-gradient-picked-swatch {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(15, 23, 42, 0.18);
  border-radius: 999px;
  flex: 0 0 auto;
}

.zalo-gradient-picked-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.zalo-detect-result-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
  margin-bottom: 8px;
}

.zalo-detect-result-head h5 {
  margin: 0;
  color: #0f172a;
  font-size: 13px;
}

.zalo-detect-result-head span {
  min-width: 26px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: #e0f2fe;
  color: #0369a1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}

.zalo-detect-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 8px;
}

.zalo-detect-empty {
  grid-column: 1 / -1;
  padding: 12px;
  border: 1px dashed #cbd5e1;
  border-radius: 8px;
  color: #64748b;
  background: #ffffff;
  font-size: 12px;
}

.zalo-detect-card {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 8px;
  align-items: start;
  padding: 8px;
  border: 1px solid #e2e8f0;
  border-radius: 9px;
  background: #ffffff;
}

.zalo-detect-swatch {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid rgba(15, 23, 42, 0.16);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.zalo-detect-card strong {
  display: block;
  color: #0f172a;
  font-size: 12.5px;
  line-height: 1.25;
}

.zalo-detect-card small {
  display: block;
  margin-top: 2px;
  color: #64748b;
  font-size: 11.5px;
  line-height: 1.35;
}

.zalo-detect-card .btn {
  grid-column: 1 / -1;
  justify-content: center;
  width: 100%;
}

.zalo-detect-actions {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.zalo-detect-actions .btn {
  grid-column: auto;
}

.zalo-textarea-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.zalo-textarea-grid .field {
  margin-bottom: 0;
}

.mobile-topbar {
  background: #ffffff;
  border-bottom-color: #dfe7f2;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06);
}

.mobile-menu-btn,
.sidebar-close-btn {
  background: #ffffff;
  border-color: #d8e1ec;
  color: #334155;
}

.sidebar-overlay {
  background: rgba(15, 23, 42, 0.36);
}

/* OCR.space API key usage */
.ocr-usage-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  padding: 14px 16px;
  border: 1px solid #dbe6f2;
  border-radius: 12px;
  background: linear-gradient(135deg, #f8fbff, #eef7ff);
  color: #334155;
}

.ocr-usage-note > div { display: flex; flex-direction: column; gap: 4px; }
.ocr-usage-note strong { color: #0f172a; }
.ocr-usage-note span { font-size: 12px; color: #64748b; }
.ocr-usage-period {
  flex: 0 0 auto;
  padding: 6px 10px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8 !important;
  font-weight: 700;
}

.ocr-stat-row .stat-card .value { font-size: clamp(20px, 2vw, 28px); }
.ocr-usage-toolbar { display: flex; gap: 10px; align-items: center; }
.ocr-usage-result { margin-left: auto; color: #64748b; font-size: 13px; font-weight: 600; }
.ocr-usage-table { min-width: 1050px; }
.ocr-usage-table td { vertical-align: middle; }
.ocr-usage-table td > small,
.ocr-usage-table td > strong + small { display: block; margin-top: 4px; color: #64748b; }

/* Test OCR.space */
.ocr-test-layout { display: grid; grid-template-columns: minmax(340px, .85fr) minmax(420px, 1.15fr); gap: 18px; align-items: start; }
.ocr-test-card { background: #fff; border: 1px solid #e2e8f0; border-radius: 14px; padding: 20px; box-shadow: 0 8px 24px rgba(15,23,42,.05); }
.ocr-test-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 14px; margin-bottom: 18px; }
.ocr-test-card-head h3 { margin: 0 0 6px; font-size: 16px; color: #0f172a; }
.ocr-test-card-head p { margin: 0; color: #64748b; font-size: 12px; line-height: 1.55; }
.ocr-test-card .field input,
.ocr-test-card .field select { width: 100%; box-sizing: border-box; background: #fff; color: #0f172a; border: 1px solid #cbd5e1; }
.ocr-test-options { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ocr-test-file-drop { min-height: 108px; border: 1.5px dashed #94a3b8; border-radius: 12px; display: flex !important; flex-direction: column; align-items: center; justify-content: center; gap: 7px; cursor: pointer; background: #f8fafc; transition: border-color .18s ease, background .18s ease; }
.ocr-test-file-drop:hover { border-color: #0ea5e9; background: #f0f9ff; }
.ocr-test-file-drop input { display: none; }
.ocr-test-file-title { color: #0369a1; font-weight: 700; font-size: 13px; }
.ocr-test-file-drop small { color: #64748b; text-align: center; padding: 0 12px; }
.ocr-test-preview-wrap { margin: -4px 0 16px; min-height: 150px; max-height: 360px; padding: 10px; align-items: center; justify-content: center; background: #f8fafc; border: 1px solid #e2e8f0; border-radius: 12px; overflow: hidden; }
.ocr-test-preview-wrap img { display: block; max-width: 100%; max-height: 338px; object-fit: contain; border-radius: 8px; }
.ocr-test-submit { width: 100%; justify-content: center; }
.ocr-test-result-card { min-width: 0; }
.ocr-test-json { margin: 0; min-height: 540px; max-height: calc(100vh - 265px); overflow: auto; white-space: pre; word-break: normal; padding: 16px; border-radius: 12px; background: #07111f; color: #b7f7d1; border: 1px solid #1e293b; font: 12px/1.55 'JetBrains Mono', monospace; tab-size: 2; }
#ocrTestStatus.is-error { color: #dc2626; }
.ocr-test-key-btn { white-space: nowrap; }
.ocr-key-id { color: #0f4c81; font-family: 'JetBrains Mono', monospace; }
.ocr-progress {
  width: 130px;
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8eef5;
}
.ocr-progress span { display: block; height: 100%; border-radius: inherit; }
.ocr-progress span.ok { background: #10b981; }
.ocr-progress span.warn { background: #f59e0b; }
.ocr-progress span.danger { background: #ef4444; }
.ocr-key-state {
  display: inline-flex;
  max-width: 260px;
  padding: 5px 8px;
  border-radius: 7px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.35;
}
.ocr-key-state.ok { color: #047857; background: #d1fae5; }
.ocr-key-state.warn { color: #9a5a00; background: #fef3c7; }
.ocr-key-state.danger { color: #b91c1c; background: #fee2e2; }
.ocr-pagination { display: flex; justify-content: center; align-items: center; gap: 14px; padding: 14px; color: #64748b; font-size: 13px; }
.ocr-agent-panel { margin-top: 18px; border: 1px solid #dbe4ee; border-radius: 12px; background: #fff; overflow: hidden; }
.ocr-agent-head { display: flex; justify-content: space-between; padding: 13px 16px; border-bottom: 1px solid #e5edf5; }
.ocr-agent-head span { color: #64748b; font-size: 13px; }
.ocr-agent-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 10px; padding: 12px; max-height: 300px; overflow: auto; }
.ocr-agent-item { display: grid; gap: 4px; padding: 10px 12px; border: 1px solid #e2e8f0; border-radius: 9px; background: #f8fafc; }
.ocr-agent-item.active { border-color: #86efac; background: #f0fdf4; }
.ocr-agent-item strong { color: #0f172a; overflow-wrap: anywhere; }
.ocr-agent-item span { color: #64748b; font-size: 12px; }
.ocr-agent-item.active span { color: #047857; font-weight: 700; }
.ocr-agent-item small, .ocr-agent-empty { color: #64748b; font-size: 11px; }
.btn.is-loading { opacity: .7; cursor: wait; }

@media (max-width: 1100px) {
  .ocr-test-layout { grid-template-columns: 1fr; }
  .ocr-test-json { min-height: 380px; max-height: 620px; }
  .stat-row {
    grid-template-columns: repeat(2, minmax(160px, 1fr));
  }

  .topbar {
    align-items: flex-start;
  }

  .topbar-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .ocr-test-options { grid-template-columns: 1fr; gap: 0; }
  .ocr-test-card { padding: 14px; }
  .main {
    padding: 16px 14px 84px;
  }

  .topbar {
    padding: 14px;
    border-radius: 12px;
  }

  .topbar-actions {
    flex-wrap: nowrap;
    overflow-x: auto;
    width: 100%;
  }

  .stat-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .stat-card {
    min-height: 78px;
  }

  .fleet-grid {
    grid-template-columns: repeat(auto-fill, minmax(76px, 1fr));
  }

  .toolbar {
    padding: 10px;
  }

  .ocr-usage-note { align-items: flex-start; }
  .ocr-usage-toolbar { align-items: stretch; flex-direction: column; }
  .ocr-usage-result { margin-left: 0; }

  .zalo-config-grid,
  .zalo-detect-layout,
  .zalo-textarea-grid {
    grid-template-columns: 1fr;
  }

  .zalo-config-card.span-2 {
    grid-column: span 1;
  }

  .zalo-color-row,
  .zalo-gradient-row {
    grid-template-columns: 1fr 42px repeat(2, minmax(54px, 1fr));
  }

  .zalo-gradient-row {
    grid-template-columns: 1fr minmax(120px, 1fr) 42px 42px repeat(2, minmax(54px, 1fr));
  }

  .zalo-detect-results {
    grid-template-columns: 1fr;
  }

  .zalo-detect-actions {
    grid-template-columns: 1fr;
  }

  #fleetVpsTable {
    min-width: 1180px;
  }

  table.vps-table {
    min-width: 900px;
  }

  .row-actions {
    flex-wrap: nowrap;
  }

  #fleetVpsTable .row-actions {
    min-width: 360px;
  }
}

@media (max-width: 430px) {
  .stat-row {
    grid-template-columns: 1fr;
  }

  .fleet-grid-legend {
    width: 100%;
    flex-wrap: wrap;
  }
}