/* ============================================
   PS Tools Design System — Namirial Voucher Manager
   ============================================ */

:root {
  --bg-primary: #0a0f1c;
  --bg-secondary: #0f1729;
  --bg-card: #151d30;
  --bg-input: #1a2340;
  --border-color: #1e2a45;
  --border-active: #3b82f6;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent-blue: #3b82f6;
  --accent-green: #22c55e;
  --accent-red: #ef4444;
  --accent-orange: #f59e0b;
  --accent-purple: #a855f7;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

body {
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  min-height: 100vh;
  margin: 0;
}

/* ---- Header / Navbar ---- */
.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.app-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  text-decoration: none;
}

.app-brand .brand-ps {
  color: var(--accent-blue);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--accent-blue);
  padding: 2px 6px;
  border-radius: 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.conn-status {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.conn-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-red);
  display: inline-block;
}

.conn-dot.connected { background: var(--accent-green); }
.conn-dot.connecting { background: var(--accent-orange); animation: pulse 1s infinite; }

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

.btn-disconnect {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-disconnect:hover {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

/* ---- Nav Tabs ---- */
.nav-tabs-custom {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 1.5rem;
  display: flex;
  gap: 0;
}

.nav-tab {
  padding: 0.75rem 1.25rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.nav-tab:hover:not(:disabled) {
  color: var(--text-secondary);
}

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

.nav-tab:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---- Main Content ---- */
.main-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}

.view { display: none; }
.view.active { display: block; }

/* ---- Auth View ---- */
.auth-container {
  max-width: 480px;
  margin: 3rem auto;
  text-align: center;
}

.auth-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.auth-subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
  font-family: var(--font-mono);
}

/* ---- Cards ---- */
.card-dark {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.5rem;
}

/* ---- Forms ---- */
.form-label-sm {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.input-dark {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  font-size: 0.9rem;
  width: 100%;
  font-family: var(--font-body);
  transition: border-color 0.2s;
}

.input-dark:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.input-dark::placeholder {
  color: var(--text-muted);
}

.input-dark::file-selector-button {
  background: var(--accent-blue);
  color: #fff;
  border: none;
  padding: 0.4rem 0.85rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  margin-right: 0.75rem;
  font-family: var(--font-body);
}

select.input-dark {
  appearance: auto;
}

/* ---- Buttons ---- */
.btn-primary-dark {
  background: var(--accent-blue);
  color: #fff;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-body);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary-dark:hover:not(:disabled) {
  background: #2563eb;
}

.btn-primary-dark:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-secondary-dark {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  padding: 0.65rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-body);
}

.btn-secondary-dark:hover {
  border-color: var(--text-muted);
}

.btn-danger-dark {
  background: var(--accent-red);
  color: #fff;
  border: none;
  padding: 0.65rem 1.5rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: var(--font-body);
}

.btn-danger-dark:hover {
  background: #dc2626;
}

/* ---- Input Group ---- */
.input-group-dark {
  display: flex;
  gap: 0.5rem;
}

.input-group-dark .input-dark { flex: 1; }

/* ---- Balance Cards ---- */
.balance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.balance-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 1.25rem;
  transition: border-color 0.2s;
}

.balance-card:hover {
  border-color: var(--text-muted);
}

.balance-card-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.75rem;
}

.product-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.product-icon.evimail { background: rgba(59, 130, 246, 0.15); color: var(--accent-blue); }
.product-icon.evinotice { background: rgba(245, 158, 11, 0.15); color: var(--accent-orange); }
.product-icon.evisms { background: rgba(34, 197, 94, 0.15); color: var(--accent-green); }
.product-icon.evisign { background: rgba(168, 85, 247, 0.15); color: var(--accent-purple); }
.product-icon.evipost { background: rgba(239, 68, 68, 0.15); color: var(--accent-red); }

.balance-card-title {
  font-weight: 600;
  font-size: 0.95rem;
}

.balance-entries {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.balance-entry {
  display: flex;
  justify-content: space-between;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border-color);
}

.balance-entry:last-child { border-bottom: none; }

.balance-entry-key { color: var(--text-secondary); }
.balance-entry-value { font-weight: 600; }

.balance-empty {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.85rem;
}

.balance-card.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100px;
}

.balance-card.error {
  border-color: var(--accent-red);
}

/* ---- Spinner ---- */
.spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.spinner-sm {
  width: 16px;
  height: 16px;
  border-width: 2px;
}

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

/* ---- Alerts ---- */
.alert-dark {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-top: 1rem;
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--accent-green);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--accent-red);
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: var(--accent-orange);
}

/* ---- Operations Log ---- */
.log-section {
  margin-top: 2rem;
}

.log-section h5 {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.log-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

.log-table th {
  text-align: left;
  padding: 0.5rem 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  border-bottom: 1px solid var(--border-color);
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
}

.log-table td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.78rem;
}

.log-table .log-success { color: var(--accent-green); }
.log-table .log-error { color: var(--accent-red); }

.log-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 1.5rem;
  font-size: 0.85rem;
}

/* ---- Recent Sites Dropdown ---- */
.recent-sites {
  position: relative;
}

.recent-sites-list {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 0 0 8px 8px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 10;
  display: none;
}

.recent-sites-list.show { display: block; }

.recent-site-item {
  padding: 0.5rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 1px solid var(--border-color);
}

.recent-site-item:hover {
  background: var(--bg-input);
  color: var(--text-primary);
}

.recent-site-item:last-child { border-bottom: none; }

/* ---- Modal ---- */
.modal-dark .modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.modal-dark .modal-header {
  border-bottom: 1px solid var(--border-color);
}

.modal-dark .modal-footer {
  border-top: 1px solid var(--border-color);
}

.modal-dark .btn-close {
  filter: invert(1);
}

/* ---- Section Headers ---- */
.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.form-row {
  margin-bottom: 1rem;
}

/* ---- Voucher Result ---- */
.voucher-result {
  margin-top: 1rem;
}

.voucher-result-id {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  word-break: break-all;
}

/* ---- Utility ---- */
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.text-mono { font-family: var(--font-mono); }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.d-none { display: none; }