@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

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

:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(24, 33, 54, 0.85);
  --bg-input: rgba(15, 20, 35, 0.8);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-focus: #1877F2;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #1877F2;
  --accent-hover: #1565d8;
  --accent-glow: rgba(24, 119, 242, 0.25);
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-xs: 6px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ─── Background Effect ─────────────────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 30% 20%, rgba(24, 119, 242, 0.06) 0%, transparent 50%),
              radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.04) 0%, transparent 50%);
  z-index: -1;
  animation: bgFloat 20s ease-in-out infinite;
}

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

/* ─── Header ────────────────────────────────────────────────────── */
.header {
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #1877F2, #6366f1);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.header-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ─── Main Layout ───────────────────────────────────────────────── */
.main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  position: sticky;
  top: 88px;
}

.content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ─── Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(255, 255, 255, 0.1);
}

.card-header {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-title .icon {
  font-size: 1.1rem;
}

.card-body {
  padding: 1.5rem;
}

.card-badge {
  font-size: 0.72rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

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

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

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
}

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

/* ─── Forms ─────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: 1rem;
}

.form-group:last-child {
  margin-bottom: 0;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}

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

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

.form-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ─── Buttons ───────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary {
  background: linear-gradient(135deg, #1877F2, #1565d8);
  color: #fff;
  box-shadow: 0 2px 12px var(--accent-glow);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
}

.btn-success:hover:not(:disabled) {
  transform: translateY(-1px);
}

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

.btn-outline:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.78rem;
}

.btn-block {
  width: 100%;
}

.btn-facebook {
  background: linear-gradient(135deg, #1877F2, #0d5ecf);
  color: #fff;
}

.btn-facebook:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(24, 119, 242, 0.35);
}

/* ─── Session Bar ───────────────────────────────────────────────── */
.session-bar {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  backdrop-filter: blur(12px);
}

.session-bar .form-input {
  flex: 1;
  min-width: 200px;
}

.session-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.session-info strong {
  color: var(--accent);
  font-weight: 600;
}

/* ─── Stats Row ─────────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.2rem;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  border-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.stat-value {
  font-size: 1.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-top: 4px;
}

/* ─── Tabs ──────────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 2px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.tab {
  flex: 1;
  padding: 8px 16px;
  background: transparent;
  border: none;
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.tab:hover {
  color: var(--text-secondary);
}

.tab.active {
  background: var(--bg-card);
  color: var(--text-primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
}

/* ─── Tables ────────────────────────────────────────────────────── */
.table-wrapper {
  overflow-x: auto;
}

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

.table th {
  text-align: left;
  padding: 10px 14px;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.table td {
  padding: 12px 14px;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
}

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

.table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.table .mono {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ─── Empty State ───────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.5;
}

.empty-state h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.empty-state p {
  font-size: 0.85rem;
  max-width: 300px;
  margin: 0 auto;
}

/* ─── JSON Viewer ───────────────────────────────────────────────── */
.json-viewer {
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.78rem;
  color: #a5b4fc;
  overflow-x: auto;
  line-height: 1.7;
  max-height: 400px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.json-key { color: #93c5fd; }
.json-string { color: #86efac; }
.json-number { color: #fbbf24; }
.json-boolean { color: #c084fc; }
.json-null { color: #64748b; }

/* ─── Toast ─────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 80px;
  right: 1.5rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
  box-shadow: var(--shadow);
  animation: slideIn 0.3s ease, fadeOut 0.3s ease 3.5s forwards;
  max-width: 380px;
  backdrop-filter: blur(12px);
}

.toast-success {
  background: rgba(16, 185, 129, 0.9);
  border: 1px solid rgba(16, 185, 129, 0.4);
}

.toast-error {
  background: rgba(239, 68, 68, 0.9);
  border: 1px solid rgba(239, 68, 68, 0.4);
}

.toast-info {
  background: rgba(24, 119, 242, 0.9);
  border: 1px solid rgba(24, 119, 242, 0.4);
}

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

@keyframes fadeOut {
  to { opacity: 0; transform: translateX(30px); }
}

/* ─── Pagination ────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 1rem;
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  transition: var(--transition);
}

.pagination button:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.pagination button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.pagination button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination .page-info {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 8px;
}

/* ─── Modal ─────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  width: 100%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  animation: modalIn 0.25s ease;
}

@keyframes modalIn {
  from { transform: scale(0.95) translateY(10px); opacity: 0; }
  to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 4px;
  transition: var(--transition);
}

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

.modal-body {
  padding: 1.5rem;
}

/* ─── API Key Display ───────────────────────────────────────────── */
.api-key-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 0.5rem;
}

.api-key-box code {
  flex: 1;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--success);
  word-break: break-all;
}

.api-key-box .btn-copy {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 4px 10px;
  border-radius: var(--radius-xs);
  cursor: pointer;
  font-size: 0.75rem;
  font-family: inherit;
  transition: var(--transition);
}

.api-key-box .btn-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ─── Loading ───────────────────────────────────────────────────── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-color);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

.loading-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ─── Step Indicator ────────────────────────────────────────────── */
.steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 1rem;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 20px;
  transition: var(--transition);
}

.step.active {
  color: var(--accent);
  background: var(--accent-glow);
}

.step.completed {
  color: var(--success);
}

.step-number {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  border: 1.5px solid currentColor;
}

.step-connector {
  width: 24px;
  height: 1px;
  background: var(--border-color);
}

/* ─── Detail Row ────────────────────────────────────────────────── */
.detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

.detail-row:last-child {
  border-bottom: none;
}

.detail-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.detail-value {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-primary);
}

/* ─── Responsive ────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
  }

  .main {
    padding: 1rem;
  }

  .session-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .header {
    padding: 0 1rem;
  }

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

  .steps {
    flex-wrap: wrap;
    gap: 4px;
  }

  .step-connector {
    display: none;
  }
}