/* ========== APP SHELL ========== */
.app-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 8px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius);
  transition: color 0.2s, background 0.2s;
}

.nav-link:hover {
  color: var(--fg);
  background: rgba(255,255,255,0.05);
}

.nav-link--active {
  color: var(--accent);
  background: var(--accent-subtle);
}

.app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 88px 28px 80px;
}

/* ========== TYPOGRAPHY ========== */
.highlight {
  color: var(--accent);
}

.accent {
  color: var(--accent) !important;
}

.green {
  color: var(--green) !important;
}

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

.text-accent:hover {
  text-decoration: underline;
}

/* ========== PAGE HEADER ========== */
.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  gap: 16px;
}

.page-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.page-subtitle {
  font-size: 15px;
  color: var(--fg-muted);
  margin-top: 6px;
}

/* ========== STATS ROW ========== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
  transition: border-color 0.3s;
}

.stat-card:hover {
  border-color: rgba(249,115,22,0.2);
}

.stat-card .stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--fg-muted);
}

/* ========== TABLE ========== */
.table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.table-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.table-header h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}

.table-scroll {
  overflow-x: auto;
}

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

.data-table th {
  padding: 12px 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--fg-dim);
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 16px;
  font-size: 14px;
  color: var(--fg-muted);
  border-bottom: 1px solid rgba(255,255,255,0.03);
  white-space: nowrap;
}

.table-row {
  cursor: pointer;
  transition: background 0.15s;
}

.table-row:hover td {
  background: rgba(255,255,255,0.03);
}

.load-id {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 600;
  color: var(--fg-dim) !important;
  font-size: 12px !important;
}

.route-cell {
  display: flex;
  align-items: center;
  gap: 8px;
}

.city {
  color: var(--fg) !important;
  font-weight: 500;
}

.arrow-right {
  color: var(--fg-dim);
  font-size: 12px;
}

.match-count {
  color: var(--green) !important;
}

.view-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
}

/* ========== STATUS BADGES ========== */
.status-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.status-lg {
  padding: 5px 14px;
  font-size: 12px;
}

.status-pending, .status-matching {
  background: rgba(249,115,22,0.1);
  color: var(--accent);
}

.status-matched {
  background: rgba(34,197,94,0.1);
  color: var(--green);
}

.status-completed {
  background: rgba(139,144,160,0.15);
  color: var(--fg-muted);
}

.status-error {
  background: rgba(239,68,68,0.1);
  color: #ef4444;
}

/* ========== EMPTY STATE ========== */
.empty-state {
  padding: 64px 24px;
  text-align: center;
}

.empty-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--fg);
}

.empty-state p {
  font-size: 15px;
  color: var(--fg-muted);
}

/* ========== BUTTONS ========== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.2s, transform 0.1s;
  white-space: nowrap;
}

.btn-primary:hover {
  background: #ea6a0a;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-full {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 16px;
}

/* ========== POST LOAD FORM ========== */
.form-container {
  max-width: 700px;
  margin: 0 auto;
}

.form-header {
  margin-bottom: 40px;
}

.form-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  background: var(--accent-subtle);
  border: 1px solid rgba(249,115,22,0.2);
  border-radius: 100px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.form-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

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

.form-header h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.form-lede {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.6;
}

.load-form {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 8px;
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 20px;
}

.form-row {
  display: flex;
  gap: 16px;
}

.form-row.two-col > * {
  flex: 1;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

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

.form-group label {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg-muted);
}

.form-group .req {
  color: var(--accent);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--fg);
  font-family: 'DM Sans', sans-serif;
  font-size: 15px;
  outline: none;
  transition: border-color 0.2s;
  width: 100%;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--fg-dim);
}

.form-group select option {
  background: var(--bg-elevated);
}

.form-group textarea {
  resize: vertical;
  min-height: 72px;
}

.route-arrow {
  text-align: center;
  font-size: 20px;
  color: var(--fg-dim);
  margin: -4px 0 12px;
}

/* ========== LOAD RESULTS PAGE ========== */
.back-link {
  display: inline-block;
  font-size: 14px;
  color: var(--fg-muted);
  text-decoration: none;
  margin-bottom: 28px;
  transition: color 0.2s;
}

.back-link:hover {
  color: var(--fg);
}

.load-summary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 32px;
}

.load-summary-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.route-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 12px;
}

.arrow-accent {
  color: var(--accent);
}

.load-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.meta-item--wide {
  flex-basis: 100%;
}

.meta-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.meta-value {
  font-size: 15px;
  font-weight: 500;
  color: var(--fg);
}

/* ========== CARRIER CARDS ========== */
.matches-section {
  margin-top: 8px;
}

.matches-section h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--fg);
}

.carrier-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.carrier-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.3s;
}

.carrier-card:hover {
  border-color: rgba(255,255,255,0.12);
}

.carrier-card--top {
  border-color: rgba(249,115,22,0.3);
  background: linear-gradient(135deg, rgba(249,115,22,0.04) 0%, var(--bg-card) 60%);
}

.top-badge {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-subtle);
  border: 1px solid rgba(249,115,22,0.25);
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.carrier-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

.carrier-rank {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-dim);
  margin-bottom: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.carrier-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}

.carrier-mc {
  font-size: 12px;
  color: var(--fg-dim);
}

.carrier-score {
  text-align: center;
  background: rgba(255,255,255,0.04);
  border-radius: 10px;
  padding: 12px 16px;
  min-width: 80px;
}

.score-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--green);
  line-height: 1;
}

.score-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-top: 4px;
}

.carrier-metrics {
  display: flex;
  gap: 32px;
  margin-bottom: 20px;
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
}

.metric-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--fg-dim);
}

.carrier-reasoning {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(255,255,255,0.03);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.55;
}

.reasoning-icon {
  flex-shrink: 0;
  font-size: 16px;
}

.btn-carrier {
  display: block;
  width: 100%;
  padding: 13px;
  border-radius: var(--radius);
  border: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
}

.btn-carrier:active {
  transform: scale(0.98);
}

.btn-carrier--primary {
  background: var(--accent);
  color: #fff;
}

.btn-carrier--primary:hover {
  background: #ea6a0a;
}

.btn-carrier--secondary {
  background: rgba(255,255,255,0.06);
  color: var(--fg);
  border: 1px solid var(--border);
}

.btn-carrier--secondary:hover {
  background: rgba(255,255,255,0.1);
}

/* ========== MATCHING SPINNER ========== */
.matching-spinner {
  text-align: center;
  padding: 64px 24px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 20px;
}

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

.matching-spinner p {
  font-size: 16px;
  color: var(--fg-muted);
  margin-bottom: 4px;
}

.spinner-sub {
  font-size: 13px !important;
  color: var(--fg-dim) !important;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .app-main {
    padding: 78px 16px 60px;
  }

  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .form-row.two-col {
    flex-direction: column;
  }

  .carrier-metrics {
    gap: 20px;
  }

  .load-summary-header {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .stats-row {
    grid-template-columns: 1fr 1fr;
  }
}