/* === Design Tokens === */
:root {
  /* Colors */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.8);
  --bg-card-hover: rgba(30, 41, 59, 0.9);
  --bg-glass: rgba(15, 23, 42, 0.6);
  --bg-input: rgba(30, 41, 59, 0.5);
  --bg-sidebar: rgba(8, 12, 24, 0.95);

  --border-color: rgba(148, 163, 184, 0.12);
  --border-active: rgba(6, 182, 212, 0.4);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent: #06b6d4;
  --accent-hover: #22d3ee;
  --accent-glow: rgba(6, 182, 212, 0.15);
  --accent-soft: rgba(6, 182, 212, 0.1);

  --success: #10b981;
  --success-soft: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-soft: rgba(245, 158, 11, 0.12);
  --error: #ef4444;
  --error-soft: rgba(239, 68, 68, 0.12);
  --info: #3b82f6;
  --info-soft: rgba(59, 130, 246, 0.12);

  /* Spacing */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(6, 182, 212, 0.08);

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;

  /* Font */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* === Reset === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
}

body {
  font-family: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}

#app {
  height: 100vh;
  display: flex;
}

a {
  color: var(--accent);
  text-decoration: none;
}

button {
  font-family: var(--font-family);
  cursor: pointer;
}

input, select, textarea {
  font-family: var(--font-family);
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* === Login Page === */
.login-page {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a0e1a 0%, #1a1a2e 50%, #0a0e1a 100%);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%),
              radial-gradient(circle at 70% 60%, rgba(99, 102, 241, 0.04) 0%, transparent 50%);
  animation: bgFloat 20s ease-in-out infinite;
}

@keyframes bgFloat {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-2%, -1%); }
}

.login-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  padding: var(--space-2xl);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.login-logo {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.login-logo h1 {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: var(--space-xs);
}

/* === Form Elements === */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all 0.2s ease;
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

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

textarea.form-input {
  resize: vertical;
  min-height: 80px;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #0891b2);
  color: white;
  box-shadow: 0 2px 10px rgba(6, 182, 212, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-hover), var(--accent));
  box-shadow: 0 4px 16px rgba(6, 182, 212, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
}

.btn-danger {
  background: var(--error-soft);
  color: var(--error);
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background: rgba(239, 68, 68, 0.2);
}

.btn-success {
  background: var(--success-soft);
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* === App Layout === */
.app-layout {
  display: flex;
  width: 100%;
  height: 100vh;
}

/* === Sidebar === */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  z-index: 100;
}

.sidebar-header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-header p {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.sidebar-nav {
  flex: 1;
  padding: var(--space-md);
  overflow-y: auto;
}

.nav-section {
  margin-bottom: var(--space-lg);
}

.nav-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 var(--space-md);
  margin-bottom: var(--space-sm);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: 10px var(--space-md);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.15s ease;
  margin-bottom: 2px;
}

.nav-item:hover {
  background: var(--accent-soft);
  color: var(--text-primary);
}

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

.nav-item .nav-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.sidebar-footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--border-color);
}

.user-info {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.85rem;
  color: white;
}

.user-details {
  flex: 1;
  min-width: 0;
}

.user-details .name {
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-details .role {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-logout {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  font-size: 1.1rem;
}

.btn-logout:hover {
  color: var(--error);
  background: var(--error-soft);
}

/* === Main Content === */
.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-primary);
}

.content-header {
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border-color);
  background: var(--bg-secondary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.content-header h1 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.3px;
}

.content-header .subtitle {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.content-body {
  flex: 1;
  padding: var(--space-xl);
  overflow-y: auto;
}

/* === KPI Cards === */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.kpi-card {
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.kpi-card:hover {
  border-color: var(--border-active);
  box-shadow: var(--shadow-glow);
}

.kpi-card:hover::before {
  opacity: 1;
}

.kpi-icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.kpi-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -1px;
  line-height: 1.2;
}

.kpi-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: var(--space-xs);
}

/* === Status Badges === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.badge-success {
  background: var(--success-soft);
  color: var(--success);
}

.badge-warning {
  background: var(--warning-soft);
  color: var(--warning);
}

.badge-error {
  background: var(--error-soft);
  color: var(--error);
}

.badge-info {
  background: var(--info-soft);
  color: var(--info);
}

.badge-neutral {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-secondary);
}

/* === Data Tables === */
.table-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--border-color);
}

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

.table-filters {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
  flex-wrap: wrap;
}

.table-filters .form-input {
  padding: 8px 12px;
  font-size: 0.8rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 12px var(--space-lg);
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: rgba(15, 23, 42, 0.5);
  border-bottom: 1px solid var(--border-color);
}

tbody td {
  padding: 12px var(--space-lg);
  font-size: 0.88rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

tbody tr {
  transition: background 0.1s ease;
}

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

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

td .text-primary {
  color: var(--text-primary);
  font-weight: 500;
}

td .text-muted {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.table-empty {
  padding: var(--space-2xl);
  text-align: center;
  color: var(--text-muted);
}

.table-empty .empty-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 600px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-lg {
  max-width: 800px;
}

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

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

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.modal-body {
  padding: var(--space-xl);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-top: 1px solid var(--border-color);
}

/* === Status Timeline === */
.status-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: var(--space-md) 0;
}

.timeline-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  position: relative;
  padding-bottom: var(--space-lg);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 32px;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-dot {
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  z-index: 1;
}

.timeline-dot.done {
  background: var(--success-soft);
  color: var(--success);
}

.timeline-dot.current {
  background: var(--info-soft);
  color: var(--info);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(59, 130, 246, 0); }
}

.timeline-dot.error {
  background: var(--error-soft);
  color: var(--error);
}

.timeline-dot.pending {
  background: rgba(148, 163, 184, 0.1);
  color: var(--text-muted);
}

.timeline-content h4 {
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 2px;
}

.timeline-content .time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.timeline-content .error-msg {
  font-size: 0.8rem;
  color: var(--error);
  margin-top: var(--space-xs);
  padding: var(--space-sm) var(--space-md);
  background: var(--error-soft);
  border-radius: var(--radius-sm);
}

/* === Toast Notifications === */
#toast-container {
  position: fixed;
  top: var(--space-lg);
  right: var(--space-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-size: 0.88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-width: 280px;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease;
  backdrop-filter: blur(10px);
}

.toast-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--success);
}

.toast-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: var(--error);
}

.toast-info {
  background: rgba(59, 130, 246, 0.15);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: var(--info);
}

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

.toast-exit {
  animation: toastOut 0.3s ease forwards;
}

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

/* === Utility === */
.clickable {
  cursor: pointer;
}

.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }

.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }

.text-center { text-align: center; }
.text-right { text-align: right; }

/* Multiselect tags */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid rgba(6, 182, 212, 0.2);
}

/* Raw payload viewer */
.payload-viewer {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  font-family: 'Menlo', 'Monaco', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  overflow-x: auto;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

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

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

.loading-overlay {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  gap: var(--space-md);
  color: var(--text-muted);
}

/* === Responsive === */
@media (max-width: 1024px) {
  .sidebar {
    position: fixed;
    left: -100%;
    transition: left 0.3s ease;
  }

  .sidebar.open {
    left: 0;
  }

  .kpi-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}