:root {
  --tk-cream: #faf3e3;
  --tk-ink: #1c1c1c;
  --tk-muted: #6b5f5e;
  --tk-line: rgba(28, 28, 28, 0.12);
  --tk-panel: #fffdf8;
  --tk-panel-2: #f3ebda;
  --tk-green: #3f7a3a;
  --tk-green-soft: #d7e8c8;
  --tk-red: #cf4520;
  --tk-font: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --tk-display: "Fraunces", Georgia, serif;
  --tk-mono: "DM Mono", ui-monospace, monospace;
  --tk-radius: 14px;
  --tk-nav-h: 56px;
  --tk-rail-w: min(280px, 32vw);
  --tk-tray-w: min(260px, 28vw);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--tk-cream);
  color: var(--tk-ink);
  font-family: var(--tk-font);
  font-size: 15px;
  line-height: 1.45;
}

body {
  background:
    radial-gradient(ellipse 70% 45% at 8% -8%, rgba(63, 122, 58, 0.16), transparent 55%),
    radial-gradient(ellipse 50% 35% at 100% 0%, rgba(207, 69, 32, 0.1), transparent 50%),
    linear-gradient(180deg, #f7efe0 0%, var(--tk-cream) 42%, #f4ead6 100%);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

a { color: var(--tk-red); }
button, input, select, textarea { font: inherit; }

.tk-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: calc(var(--tk-nav-h) + env(safe-area-inset-top));
  padding: 10px 16px;
  padding-top: max(10px, env(safe-area-inset-top));
  padding-left: max(16px, env(safe-area-inset-left));
  padding-right: max(16px, env(safe-area-inset-right));
  border-bottom: 1.5px solid var(--tk-line);
  background: rgba(250, 243, 227, 0.94);
  position: sticky;
  top: 0;
  z-index: 20;
}

.tk-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.tk-nav-logo,
.tk-nav-section {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
  color: var(--tk-ink);
}

.tk-nav-logo {
  font-family: var(--tk-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.65;
}
.tk-nav-logo:hover { opacity: 1; }

.tk-nav-section {
  font-family: var(--tk-display);
  font-size: 1.15rem;
  font-weight: 600;
  padding-left: 10px;
  border-left: 1px solid var(--tk-line);
}

.tk-nav-links {
  display: flex;
  align-items: center;
  gap: 10px;
}
.tk-nav-links a {
  color: var(--tk-muted);
  text-decoration: none;
  font-size: 0.82rem;
}
.tk-nav-links a:hover { color: var(--tk-ink); }

.tk-app {
  flex: 1;
  display: grid;
  grid-template-columns: var(--tk-rail-w) minmax(0, 1fr) var(--tk-tray-w);
  min-height: 0;
}

.tk-rail,
.tk-tray {
  background: rgba(255, 253, 248, 0.72);
  border-right: 1.5px solid var(--tk-line);
  padding: 18px 16px 28px;
  overflow: auto;
}
.tk-tray {
  border-right: 0;
  border-left: 1.5px solid var(--tk-line);
}

.tk-kicker {
  font-family: var(--tk-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--tk-muted);
  margin: 0 0 6px;
}
.tk-brand {
  font-family: var(--tk-display);
  font-size: 2rem;
  font-weight: 650;
  margin: 0 0 8px;
  letter-spacing: -0.02em;
}
.tk-lede, .tk-blurb, .tk-meta, .tk-empty {
  color: var(--tk-muted);
  font-size: 0.88rem;
  margin: 0 0 12px;
}
.tk-docs { margin: 0; font-size: 0.82rem; }
.tk-docs a { text-decoration: none; border-bottom: 1px solid currentColor; }

.tk-group {
  margin: 16px 0 8px;
}
.tk-group-name {
  font-family: var(--tk-mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--tk-muted);
  margin: 0 0 6px;
}

.tk-source {
  display: block;
  width: 100%;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 8px 10px;
  border-radius: 10px;
  cursor: pointer;
  color: var(--tk-ink);
}
.tk-source:hover { background: rgba(28, 28, 28, 0.05); }
.tk-source.is-on {
  background: var(--tk-green-soft);
}
.tk-source-name { display: block; font-weight: 650; font-size: 0.9rem; }
.tk-source-blurb {
  display: block;
  color: var(--tk-muted);
  font-size: 0.75rem;
  margin-top: 2px;
}

.tk-main {
  min-width: 0;
  padding: 20px 22px 40px;
  overflow: auto;
}

.tk-setup {
  background: var(--tk-panel);
  border: 1.5px solid var(--tk-line);
  border-radius: var(--tk-radius);
  padding: 18px 18px 16px;
  margin-bottom: 16px;
}
.tk-step-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
}
.tk-step-row .tk-kicker { margin: 0; }
.tk-step {
  display: inline-flex;
  width: 1.55rem;
  height: 1.55rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: var(--tk-green);
  color: #faf3e3;
  font-weight: 700;
  font-size: 0.82rem;
  flex-shrink: 0;
}
.tk-source-picker {
  display: block;
  margin: 0 0 12px;
}
.tk-source-picker select {
  width: 100%;
  min-height: 52px;
  font-size: 1.15rem;
  font-weight: 650;
  border: 2px solid var(--tk-green);
  border-radius: 12px;
  padding: 10px 14px;
  background: #fff;
  color: var(--tk-ink);
}
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.tk-params {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin: 14px 0;
}
.tk-field { display: flex; flex-direction: column; gap: 5px; }
.tk-field span {
  font-size: 0.75rem;
  color: var(--tk-muted);
  font-weight: 650;
}
.tk-field input,
.tk-field select,
.tk-field textarea,
.tk-pick-tools input,
.tk-sheet-name input {
  border: 1.5px solid var(--tk-line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fff;
  color: var(--tk-ink);
  min-height: 40px;
}
.tk-field textarea {
  min-height: 140px;
  font-family: var(--tk-mono);
  font-size: 0.78rem;
  grid-column: 1 / -1;
}
.tk-field:has(textarea) { grid-column: 1 / -1; }

.tk-cta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.tk-status { margin: 0; font-size: 0.85rem; color: var(--tk-muted); }
.tk-status.is-bad { color: var(--tk-red); }
.tk-status.is-ok { color: var(--tk-green); }

.tk-btn {
  appearance: none;
  border: 0;
  border-radius: 9px;
  padding: 9px 14px;
  font-weight: 650;
  cursor: pointer;
  font-size: 0.88rem;
}
.tk-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.tk-btn-fetch, .tk-btn-export {
  background: var(--tk-green);
  color: #faf3e3;
}
.tk-btn-fetch:hover:not(:disabled),
.tk-btn-export:hover:not(:disabled) { filter: brightness(1.06); }
.tk-btn-ghost {
  background: transparent;
  color: var(--tk-ink);
  border: 1.5px solid var(--tk-line);
}
.tk-btn-ghost:hover:not(:disabled) { background: var(--tk-panel-2); }
.tk-btn-block { width: 100%; margin-top: 12px; }
.tk-btn-tiny {
  padding: 4px 8px;
  font-size: 0.75rem;
}

.tk-pick {
  background: var(--tk-panel);
  border: 1.5px solid var(--tk-line);
  border-radius: var(--tk-radius);
  padding: 18px;
}
.tk-pick-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.tk-pick h2, .tk-tray h2 {
  font-family: var(--tk-display);
  font-size: 1.25rem;
  margin: 0 0 4px;
}
.tk-pick-tools {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.tk-pick-tools input { min-width: 160px; }

.tk-cols {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 14px 0 12px;
}
.tk-field-row {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.4fr) auto;
  gap: 8px 12px;
  align-items: center;
  border: 1.5px solid var(--tk-line);
  border-radius: 10px;
  padding: 8px 10px;
  background: #fff;
}
.tk-field-row.is-off { opacity: 0.5; }
.tk-field-row.is-open {
  border-color: var(--tk-green);
  background: var(--tk-green-soft);
}
.tk-field-inc {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  cursor: pointer;
}
.tk-field-inc input { accent-color: var(--tk-green); }
.tk-field-inc code {
  font-family: var(--tk-mono);
  font-size: 0.78rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tk-field-ex {
  margin: 0;
  font-size: 0.78rem;
  color: var(--tk-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.tk-values {
  border: 1.5px solid var(--tk-line);
  border-radius: 10px;
  background: #fff;
  padding: 12px;
  margin: 0 0 16px;
}
.tk-values-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}
.tk-values-head h3 {
  font-family: var(--tk-display);
  font-size: 1.05rem;
  margin: 0 0 4px;
}
.tk-values-tools {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin: 10px 0;
}
.tk-values-tools input { min-width: 180px; flex: 1; }
.tk-value-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  max-height: min(42vh, 420px);
  overflow: auto;
  border: 1px solid var(--tk-line);
  border-radius: 8px;
  padding: 6px;
}
.tk-val {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 8px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.82rem;
}
.tk-val:hover { background: var(--tk-panel-2); }
.tk-val input { accent-color: var(--tk-green); }
.tk-val-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.tk-val-count {
  font-family: var(--tk-mono);
  font-size: 0.68rem;
  color: var(--tk-muted);
}
.tk-values-note {
  margin: 8px 0 0;
  font-size: 0.85rem;
  color: var(--tk-muted);
}

.tk-pager {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--tk-muted);
}

@media (max-width: 720px) {
  .tk-field-row {
    grid-template-columns: 1fr;
  }
}

.tk-preview-wrap { margin-top: 4px; }
.tk-preview-head {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  align-items: baseline;
}
.tk-table-scroll {
  overflow: auto;
  max-height: min(48vh, 520px);
  border: 1.5px solid var(--tk-line);
  border-radius: 10px;
  background: #fff;
}
.tk-table {
  border-collapse: collapse;
  width: max-content;
  min-width: 100%;
  font-size: 0.78rem;
}
.tk-table th, .tk-table td {
  border-bottom: 1px solid var(--tk-line);
  border-right: 1px solid rgba(28, 28, 28, 0.06);
  padding: 6px 8px;
  text-align: left;
  white-space: nowrap;
  max-width: 280px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tk-table th {
  position: sticky;
  top: 0;
  background: var(--tk-panel-2);
  font-family: var(--tk-mono);
  font-size: 0.68rem;
  font-weight: 500;
}

.tk-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
  margin-top: 14px;
}
.tk-sheet-name {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.75rem;
  color: var(--tk-muted);
  font-weight: 650;
}

.tk-sheets {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tk-sheet {
  background: #fff;
  border: 1.5px solid var(--tk-line);
  border-radius: 10px;
  padding: 10px 10px 8px;
}
.tk-sheet strong { display: block; font-size: 0.9rem; }
.tk-sheet p { margin: 4px 0 8px; font-size: 0.75rem; color: var(--tk-muted); }
.tk-sheet-tools { display: flex; gap: 6px; }

@media (max-width: 980px) {
  .tk-app {
    grid-template-columns: 1fr;
  }
  .tk-rail { display: none; }
  .tk-tray {
    border-right: 0;
    border-left: 0;
    border-top: 1.5px solid var(--tk-line);
  }
}

@media (pointer: coarse) {
  .tk-field input,
  .tk-field select,
  .tk-field textarea,
  .tk-source-picker select,
  .tk-pick-tools input,
  .tk-values-tools input,
  .tk-sheet-name input {
    font-size: 16px;
  }
  .tk-btn { min-height: 44px; }
}