.airt-shell {
  --airt-bg: #ffffff;
  --airt-surface: #ffffff;
  --airt-border: #e5e7eb;
  --airt-text: #111827;
  --airt-muted: #6b7280;
  --airt-primary: #0f172a;
  --airt-primary-hover: #1e293b;
  --airt-accent: #f8fafc;
  width: 100%;
  max-width: 100%;
  margin: 0;
  padding: 0;
  color: var(--airt-text);
  font-family: "Josefin Sans", sans-serif;
  box-sizing: border-box;
  position: relative;
}

.airt-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(255, 255, 255, 0.98);
  opacity: 1;
  visibility: visible;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.airt-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.airt-loader-box {
  width: min(420px, 100%);
  padding: 28px 26px;
  border: 1px solid var(--airt-border);
  border-radius: 22px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  text-align: center;
}

.airt-loader-box p {
  margin: 0 0 18px;
  color: var(--airt-text);
  font: 700 24px/1.2 "Josefin Sans", sans-serif;
  letter-spacing: -0.03em;
}

.airt-bar {
  width: 100%;
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: linear-gradient(90deg, #f1f5f9 0%, #e5e7eb 100%);
}

#airt-fill {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #0f172a 0%, #334155 100%);
  transition: width 0.18s ease;
}

#airt-percent {
  display: inline-block;
  margin-top: 14px;
  color: var(--airt-muted);
  font: 700 16px/1.2 "Josefin Sans", sans-serif;
}

.airt-header {
  display: block;
  margin-bottom: 16px;
}

.airt-eyebrow {
  margin: 0 0 8px;
  font: 700 12px/1.2 "Josefin Sans", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--airt-muted);
}

.airt-header h2 {
  margin: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.airt-subtitle {
  margin: 14px 0 0;
  max-width: 760px;
  color: var(--airt-muted);
  font: 400 18px/1.7 "Josefin Sans", sans-serif;
}

.airt-panel {
  border: 1px solid var(--airt-border);
  background: var(--airt-surface);
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.06);
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

.airt-panel,
.airt-panel * {
  box-sizing: border-box;
}

.airt-toolbar,
.airt-footer {
  display: flex;
  gap: 16px;
  align-items: end;
  justify-content: space-between;
  padding: 18px;
  border-bottom: 1px solid var(--airt-border);
  flex-wrap: wrap;
}

.airt-footer {
  border-top: 1px solid var(--airt-border);
  border-bottom: 0;
  align-items: center;
}

.airt-select-wrap {
  min-width: 170px;
  flex: 1 1 170px;
}

.airt-select-wrap label {
  display: block;
  margin-bottom: 6px;
  font: 600 12px/1.2 "Josefin Sans", sans-serif;
  color: var(--airt-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.airt-select-wrap select,
.airt-meta input[type="file"] {
  width: 100%;
  min-height: 42px;
  border: 1px solid var(--airt-border);
  border-radius: 12px;
  background: #fff;
  padding: 10px 12px;
  font: 500 14px/1.4 "Josefin Sans", sans-serif;
}

.airt-actions,
.airt-secondary-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.airt-option-row {
  padding: 14px 18px;
  border-bottom: 1px solid var(--airt-border);
  background: #fcfcfd;
}

.airt-advanced {
  width: 100%;
}

.airt-advanced summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--airt-border);
  border-radius: 12px;
  background: #fff;
  font: 700 14px/1.2 "Josefin Sans", sans-serif;
  user-select: none;
}

.airt-advanced summary::-webkit-details-marker {
  display: none;
}

.airt-advanced summary::after {
  content: "+";
  font-size: 18px;
  line-height: 1;
}

.airt-advanced[open] summary::after {
  content: "-";
}

.airt-advanced-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.airt-check {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--airt-border);
  padding: 12px 14px;
  border-radius: 12px;
  font: 600 13px/1.3 "Josefin Sans", sans-serif;
  color: var(--airt-text);
  background: #fff;
  min-width: 0;
  width: 100%;
}

.airt-check input {
  margin: 0;
  flex: 0 0 auto;
}

.airt-check span {
  min-width: 0;
  word-break: break-word;
}

.airt-btn {
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid var(--airt-border);
  background: #fff;
  padding: 0 16px;
  font: 700 14px/1 "Josefin Sans", sans-serif;
  color: var(--airt-text);
  cursor: pointer;
  transition: 0.2s ease;
}

.airt-btn:hover {
  border-color: #cbd5e1;
  transform: translateY(-1px);
}

.airt-btn-primary {
  background: var(--airt-primary);
  color: #fff;
  border-color: var(--airt-primary);
}

.airt-btn-primary:hover {
  background: var(--airt-primary-hover);
}

.airt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-width: 0;
}

.airt-card {
  min-width: 0;
  overflow: hidden;
}

.airt-card + .airt-card {
  border-left: 1px solid var(--airt-border);
}

.airt-card-head {
  display: flex;
  gap: 14px;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 12px;
  min-width: 0;
  flex-wrap: wrap;
}

.airt-card-head h3 {
  margin: 0;
  font: 700 20px/1.2 "Josefin Sans", sans-serif;
}

.airt-meta {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
  color: var(--airt-muted);
  font: 600 13px/1.4 "Josefin Sans", sans-serif;
  min-width: 0;
  max-width: 100%;
}

.airt-card textarea {
  width: 100%;
  min-height: 620px;
  max-width: 100%;
  border: 0;
  border-top: 1px solid var(--airt-border);
  resize: vertical;
  padding: 20px;
  background: #fff;
  color: var(--airt-text);
  font: 400 17px/1.8 "Josefin Sans", sans-serif;
  box-sizing: border-box;
}

.airt-card textarea:focus,
.airt-select-wrap select:focus {
  outline: none;
  box-shadow: inset 0 0 0 2px rgba(15, 23, 42, 0.08);
}

.airt-status {
  color: var(--airt-muted);
  font: 600 13px/1.4 "Josefin Sans", sans-serif;
}

.airt-status-block {
  display: grid;
  gap: 6px;
}

.airt-helper {
  color: var(--airt-muted);
  font: 400 12px/1.5 "Josefin Sans", sans-serif;
}

@media (max-width: 960px) {
  .airt-header,
  .airt-grid,
  .airt-toolbar,
  .airt-footer {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .airt-card + .airt-card {
    border-left: 0;
    border-top: 1px solid var(--airt-border);
  }

  .airt-card textarea {
    min-height: 360px;
  }

  .airt-advanced-grid {
    grid-template-columns: 1fr;
  }
}