:root {
  --bg: #0b0d12;
  --bg-elevated: #11141b;
  --surface: #161b24;
  --surface-hover: #1c2230;
  --border: #252b38;
  --border-light: #313949;
  --text: #eef1f6;
  --text-secondary: #9aa3b2;
  --text-muted: #6b7280;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-soft: rgba(59, 130, 246, 0.12);
  --green: #22c55e;
  --green-soft: rgba(34, 197, 94, 0.12);
  --red: #ef4444;
  --red-soft: rgba(239, 68, 68, 0.12);
  --yellow: #eab308;
  --yellow-soft: rgba(234, 179, 8, 0.12);
  --sidebar-width: 240px;
  --radius: 10px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

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

body {
  font-family: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.hidden { display: none !important; }

/* Login */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(34, 197, 94, 0.05) 0%, transparent 50%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: var(--shadow);
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 18px;
}

.login-brand h1 {
  font-size: 1.25rem;
  font-weight: 600;
}

.login-brand p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

input[type="password"],
input[type="text"],
select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: var(--radius);
  padding: 11px 14px;
  font-size: 0.95rem;
  transition: border-color 0.15s;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  white-space: nowrap;
}

.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-block { width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background: var(--surface-hover);
  color: var(--text);
}

.btn-success { background: var(--green); }
.btn-success:hover { background: #16a34a; }
.btn-danger { background: var(--red); }
.btn-danger:hover { background: #dc2626; }

.error-msg {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 12px;
}

/* Layout */
.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-elevated);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-brand {
  padding: 24px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand span {
  font-weight: 600;
  font-size: 0.95rem;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  border-radius: 8px;
  font-size: 0.9rem;
  cursor: pointer;
  text-align: left;
  margin-bottom: 4px;
  transition: background 0.15s, color 0.15s;
}

.nav-item:hover {
  background: var(--surface);
  color: var(--text);
}

.nav-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}

.nav-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.nav-dot.pending { background: var(--yellow); }
.nav-dot.approved { background: var(--green); }
.nav-dot.rejected { background: var(--red); }
.nav-dot.all { background: var(--text-muted); }

.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--border);
}

.main {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.topbar {
  padding: 20px 32px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.topbar h2 {
  font-size: 1.15rem;
  font-weight: 600;
}

.topbar-meta {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

#notify-btn.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-soft);
}

#notify-btn.denied {
  opacity: 0.5;
}

.content {
  padding: 28px 32px 48px;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1;
}

.stat-card.pending .stat-value { color: var(--yellow); }
.stat-card.approved .stat-value { color: var(--green); }
.stat-card.rejected .stat-value { color: var(--red); }
.stat-card.total .stat-value { color: var(--accent); }

/* Toolbar */
.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 20px;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box input {
  padding-left: 36px;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.85rem;
  pointer-events: none;
}

.filter-select {
  width: auto;
  min-width: 140px;
}

/* Table */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

thead {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

tbody tr {
  transition: background 0.12s;
}

tbody tr:hover {
  background: var(--surface-hover);
}

tbody tr:last-child td {
  border-bottom: none;
}

.cell-project {
  font-weight: 600;
  text-transform: capitalize;
}

.cell-subtitle {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.cell-id {
  font-family: ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.cell-date {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-pending { background: var(--yellow-soft); color: var(--yellow); }
.badge-approved { background: var(--green-soft); color: var(--green); }
.badge-rejected { background: var(--red-soft); color: var(--red); }

.row-actions {
  display: flex;
  gap: 6px;
  justify-content: flex-end;
}

.empty-state {
  text-align: center;
  padding: 64px 24px;
  color: var(--text-secondary);
}

.empty-state svg {
  margin-bottom: 16px;
  opacity: 0.4;
}

.empty-state h3 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 6px;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.pagination-btns {
  display: flex;
  gap: 8px;
}

/* Modal */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: grid;
  place-items: center;
  padding: 24px;
}

.modal {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%;
  max-width: 820px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  font-size: 1rem;
  font-weight: 600;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.meta-item label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.meta-item span {
  font-size: 0.9rem;
}

.json-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow: auto;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.8rem;
  line-height: 1.6;
  max-height: 400px;
  white-space: pre-wrap;
  word-break: break-word;
}

.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.detail-section {
  margin-bottom: 20px;
}

.detail-section-title {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.detail-kv label {
  display: block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.detail-kv span {
  font-size: 0.9rem;
  word-break: break-all;
}

.wallet-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 12px;
}

.wallet-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.wallet-chain {
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chain-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.chain-dot.eth { background: #627eea; }
.chain-dot.sol { background: #9945ff; }
.chain-dot.key { background: var(--accent); }

.detail-field {
  margin-bottom: 12px;
}

.detail-field:last-child {
  margin-bottom: 0;
}

.detail-field label {
  display: block;
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.copy-row {
  display: flex;
  align-items: stretch;
  gap: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.copy-value {
  flex: 1;
  padding: 10px 12px;
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  word-break: break-all;
  color: var(--text);
  min-width: 0;
}

.copy-value.sensitive {
  color: #fbbf24;
}

.copy-btn {
  flex-shrink: 0;
  background: var(--surface-hover);
  border: none;
  border-left: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 0 14px;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.copy-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}

.copy-btn.copied {
  color: var(--green);
}

.raw-json-toggle {
  margin-top: 20px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.raw-json-toggle summary {
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
  margin-bottom: 12px;
}

.raw-json-toggle summary:hover {
  color: var(--text-secondary);
}

.raw-json-toggle .json-block {
  margin-top: 8px;
}

/* Toast */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
  animation: slideIn 0.25s ease;
  min-width: 260px;
}

.toast.success { border-left: 3px solid var(--green); }
.toast.error { border-left: 3px solid var(--red); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.loading-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .content { padding: 20px 16px 40px; }
  .topbar { padding: 16px; }
}