:root {
  --bg-primary: #0a0f1d;
  --bg-secondary: #131b2e;
  --bg-tertiary: #1b2640;
  --border-color: #273754;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent-green: #10b981;
  --accent-gold: #f59e0b;
  --accent-cyan: #06b6d4;
  --accent-red: #ef4444;
  --card-radius: 12px;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo-box {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.brand-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge-ai {
  font-size: 0.7rem;
  background: linear-gradient(90deg, #ec4899, #8b5cf6);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.airgap-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: var(--accent-green);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1.1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  border: 1px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #2563eb, #1d4ed8);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: var(--bg-tertiary);
  border-color: #3b82f6;
}

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

.btn-secondary:hover {
  background-color: #273754;
  border-color: #3b82f6;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* Container */
.container {
  max-width: 1400px;
  margin: 1.5rem auto;
  padding: 0 1.5rem;
}

/* Metrics Grid */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.metric-card {
  position: relative;
  overflow: hidden;
}

.metric-card.highlight-green { border-top: 3px solid var(--accent-green); }
.metric-card.highlight-gold { border-top: 3px solid var(--accent-gold); }
.metric-card.highlight-cyan { border-top: 3px solid var(--accent-cyan); }

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.metric-val {
  font-size: 2.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-family: var(--font-mono);
}

.metric-sub {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

.text-green { color: var(--accent-green); }
.text-gold { color: var(--accent-gold); }
.text-cyan { color: var(--accent-cyan); }

/* Workspace Grid */
.workspace-grid {
  display: grid;
  grid-template-columns: 460px 1fr;
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border-color);
}

.card-header h3, .card-header h4 {
  font-size: 1.05rem;
  font-weight: 700;
}

.badge-model {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  font-size: 0.75rem;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-color);
  border-radius: 10px;
  padding: 1.6rem 1rem;
  text-align: center;
  background-color: rgba(19, 27, 46, 0.6);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 1rem;
}

.dropzone:hover, .dropzone.dragover {
  border-color: var(--primary);
  background-color: rgba(37, 99, 235, 0.08);
}

.dropzone-icon {
  font-size: 2.2rem;
  margin-bottom: 0.5rem;
}

.dropzone-text {
  font-size: 0.95rem;
  color: var(--text-main);
}

.dropzone-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0.35rem 0 0.85rem 0;
}

.file-input {
  display: none;
}

/* Image Preview */
.image-preview-container {
  position: relative;
  margin-bottom: 1rem;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  max-height: 180px;
}

.image-preview-container img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
}

.btn-remove-image {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Paste Box */
.paste-box {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.paste-box label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

textarea {
  width: 100%;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-main);
  padding: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  resize: vertical;
}

textarea:focus, input:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

.action-bar {
  display: flex;
  gap: 0.65rem;
  margin-top: 0.25rem;
}

.form-select {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.84rem;
  flex: 1;
}

.form-select-sm {
  padding: 0.4rem 0.65rem;
  font-size: 0.8rem;
}

/* Agent Stepper */
.agent-stepper {
  margin-top: 1.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1rem;
}

.stepper-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-gold);
  margin-bottom: 0.65rem;
}

.step-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
  transition: all 0.2s ease;
}

.step-item.active {
  color: var(--text-main);
  font-weight: 600;
}

.step-item.completed {
  color: var(--accent-green);
}

.step-bullet {
  width: 18px;
  height: 18px;
  background-color: var(--bg-tertiary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-family: var(--font-mono);
}

.step-item.completed .step-bullet {
  background-color: var(--accent-green);
  color: #000;
}

/* Privacy Card */
.privacy-card {
  margin-top: 1.25rem;
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08) 0%, var(--bg-secondary) 100%);
  border-color: rgba(59, 130, 246, 0.3);
}

.privacy-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.privacy-header h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: #60a5fa;
}

.privacy-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-bottom: 0.75rem;
}

.benefit-list {
  list-style: none;
  font-size: 0.8rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

/* Chart Card */
.chart-card {
  margin-bottom: 1.25rem;
  padding: 1.1rem 1.25rem;
}

.chart-container {
  width: 100%;
  height: 160px;
}

.chart-container svg {
  width: 100%;
  height: 100%;
}

/* Ledger Table */
.search-filter-box {
  display: flex;
  gap: 0.65rem;
}

.input-search {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  font-size: 0.82rem;
  min-width: 200px;
}

.table-container {
  overflow-x: auto;
  max-height: 520px;
}

.ledger-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.84rem;
  text-align: left;
}

.ledger-table th {
  background-color: var(--bg-tertiary);
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.65rem 0.85rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 1px solid var(--border-color);
}

.ledger-table td {
  padding: 0.8rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.ledger-table tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}

.badge-tag {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
}

.audit-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 600;
}

.audit-pass {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.audit-warn {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--accent-gold);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding: 0.2rem;
  transition: color 0.15s;
}

.btn-icon:hover {
  color: var(--text-main);
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
}

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

/* Category Breakdown Chips */
.summary-card {
  margin-top: 1.25rem;
}

.category-breakdown-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.category-chip {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  min-width: 170px;
}

.chip-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.chip-amount {
  font-size: 1.15rem;
  font-weight: 700;
  font-family: var(--font-mono);
}

.chip-deductible {
  font-size: 0.72rem;
  color: var(--accent-green);
}

/* Modal */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  width: 100%;
  max-width: 540px;
  box-shadow: var(--shadow);
}

.modal-large {
  max-width: 840px;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.15rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  cursor: pointer;
}

.modal-body {
  padding: 1.5rem;
  max-height: 70vh;
  overflow-y: auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

.form-group input {
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  color: var(--text-main);
  font-size: 0.88rem;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  padding: 1.15rem 1.5rem;
  border-top: 1px solid var(--border-color);
}

/* Schedule C Modal Table */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  text-align: left;
}

.schedule-table th {
  background-color: var(--bg-tertiary);
  padding: 0.65rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-muted);
}

.schedule-table td {
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.schedule-summary-box {
  margin-top: 1.5rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 1.15rem;
  display: flex;
  justify-content: space-around;
}

.sched-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sched-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.sched-stat-val {
  font-size: 1.5rem;
  font-weight: 800;
  font-family: var(--font-mono);
}

/* Footer */
.footer {
  text-align: center;
  padding: 2.5rem 1rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border-color);
  margin-top: 3rem;
}