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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #242836;
  --border: #2e3345;
  --text: #e4e7ef;
  --text-dim: #8b90a0;
  --primary: #6366f1;
  --primary-hover: #818cf8;
  --danger: #ef4444;
  --danger-hover: #f87171;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.hidden { display: none !important; }

/* Login Screen */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 360px;
  text-align: center;
}

.login-card h1 {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.login-subtitle {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.login-card label {
  display: block;
  text-align: left;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.login-card input {
  display: block;
  width: 100%;
  margin-top: 6px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}

.login-card input:focus {
  outline: none;
  border-color: var(--primary);
}

.btn-full {
  width: 100%;
  padding: 10px;
  margin-top: 4px;
}

.login-error {
  color: var(--danger);
  font-size: 0.8rem;
  margin-top: 12px;
}

.app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
}

header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

header h1 {
  font-size: 1.5rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--success);
}

.status-dot.killed {
  background: var(--danger);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* Tabs */
.tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.tab {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 10px 20px;
  cursor: pointer;
  font-size: 0.9rem;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.tab:hover { color: var(--text); }
.tab.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-content { display: none; }
.tab-content.active { display: block; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  text-align: center;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  color: var(--text-dim);
  margin-top: 4px;
  font-size: 0.85rem;
}

/* Buttons */
.btn {
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--primary);
  color: white;
}
.btn-primary:hover { background: var(--primary-hover); }

.btn-secondary {
  background: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-danger {
  background: var(--danger);
  color: white;
}
.btn-danger:hover { background: var(--danger-hover); }

.btn-sm {
  padding: 4px 10px;
  font-size: 0.75rem;
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.section-header h2 {
  font-size: 1.2rem;
  font-weight: 600;
}

/* Table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

th, td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  background: var(--surface);
  color: var(--text-dim);
  font-weight: 500;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td { background: var(--surface2); }

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

.key-cell {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.75rem;
  color: var(--primary);
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.badge-active { background: rgba(34, 197, 94, 0.15); color: var(--success); }
.badge-expired { background: rgba(245, 158, 11, 0.15); color: var(--warning); }
.badge-revoked { background: rgba(239, 68, 68, 0.15); color: var(--danger); }

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

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal.hidden { display: none; }

.modal-content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 400px;
  max-width: 90vw;
}

.modal-content h3 {
  margin-bottom: 16px;
  font-size: 1.1rem;
}

.modal-content label {
  display: block;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.modal-content input,
.modal-content select {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.9rem;
}

.modal-actions {
  display: flex;
  gap: 8px;
  margin-top: 16px;
  justify-content: flex-end;
}

/* Features Panel */
.features-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.features-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.features-header h3 {
  font-size: 1rem;
  flex-shrink: 0;
}

.features-header select {
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.85rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 8px;
}

.feature-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s;
}

.feature-toggle:hover {
  border-color: var(--primary);
}

.feature-toggle.on {
  border-color: var(--success);
  background: rgba(34, 197, 94, 0.05);
}

.feature-toggle input[type="checkbox"] {
  accent-color: var(--success);
  width: 16px;
  height: 16px;
  cursor: pointer;
}

.feature-toggle .feat-name {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text);
}

.feature-toggle .feat-desc {
  font-size: 0.65rem;
  color: var(--text-dim);
}

.features-note {
  margin-top: 12px;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.features-note code {
  background: var(--surface2);
  padding: 1px 5px;
  border-radius: 3px;
  font-size: 0.75rem;
}

/* Payload Editor */
.payload-editor {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.payload-editor label {
  display: block;
  margin-bottom: 12px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

.payload-editor select,
.payload-editor textarea,
.payload-editor input[type="text"] {
  display: block;
  width: 100%;
  margin-top: 4px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.85rem;
  font-family: 'SF Mono', 'Fira Code', monospace;
  resize: vertical;
}

.plan-select-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 4px;
}

.plan-select-row select { flex: 1; margin-top: 0; }

.plan-custom-input {
  flex: 1;
  margin-top: 0 !important;
  display: none;
}

.plan-custom-input.visible { display: block; }

.payload-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.upload-btn {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
}

.payload-warning {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 10px 14px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--danger);
  font-weight: 500;
}

.payload-info {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* Header button group */
.header-btn-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.extend-all-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.preset-btns {
  display: flex;
  gap: 4px;
}

.btn-preset {
  background: var(--surface2);
  color: var(--text-dim);
  border: 1px solid var(--border);
  padding: 4px 8px;
  font-size: 0.75rem;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.btn-preset:hover {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
}

.btn-preset-sub:hover {
  background: var(--danger);
  border-color: var(--danger);
}

.btn-preset-sub.active {
  background: var(--danger);
  color: white;
  border-color: var(--danger);
}

.preset-divider {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
}

.input-sm {
  width: 60px;
  padding: 6px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.85rem;
  text-align: center;
}

.modal-sublabel {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 12px;
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.time-good { color: var(--success); font-weight: 600; }
.time-warn { color: var(--warning); font-weight: 600; }
.time-critical { color: var(--danger); font-weight: 600; animation: pulse 1.5s infinite; }
.time-expired { color: var(--text-dim); font-weight: 600; text-decoration: line-through; }

/* Reseller Filter Chips */
.reseller-filter {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.reseller-chip {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.15s;
}

.reseller-chip:hover {
  border-color: var(--primary);
  color: var(--text);
}

.reseller-chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Reseller Cards Grid */
.resellers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

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

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

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

.reseller-prefix {
  font-family: 'SF Mono', 'Fira Code', monospace;
  font-size: 0.8rem;
  color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.reseller-stats {
  display: flex;
  gap: 16px;
  margin-bottom: 12px;
}

.reseller-stat {
  text-align: center;
}

.reseller-stat-val {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.reseller-stat-lbl {
  font-size: 0.7rem;
  color: var(--text-dim);
}

.reseller-card-actions {
  display: flex;
  gap: 6px;
}

/* Config grid */
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.config-grid label {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.config-grid input {
  padding: 8px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.85rem;
}

/* Config reseller sub-tabs */
.config-reseller-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.config-reseller-tab {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.15s;
}

.config-reseller-tab:hover {
  border-color: var(--primary);
  color: var(--text);
}

.config-reseller-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

/* Responsive */
@media (max-width: 768px) {
  .app { padding: 12px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .actions-cell { flex-direction: column; }
  .header-btn-group { flex-direction: column; align-items: flex-end; }
}