.kaiv-app {
  --kaiv-bg: #f6f7f4;
  --kaiv-panel: #ffffff;
  --kaiv-text: #17211d;
  --kaiv-muted: #64726b;
  --kaiv-line: #dce4df;
  --kaiv-accent: #247c62;
  --kaiv-accent-strong: #14533f;
  --kaiv-warn: #9a5a2c;
  color: var(--kaiv-text);
  font-family: inherit;
}

.kaiv-app * {
  box-sizing: border-box;
}

.kaiv-shell {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  width: 100%;
}

.kaiv-panel,
.kaiv-stage-wrap {
  border: 1px solid var(--kaiv-line);
  background: var(--kaiv-panel);
  border-radius: 8px;
}

.kaiv-panel--controls {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.kaiv-brand {
  display: grid;
  grid-template-columns: 38px 1fr;
  gap: 12px;
  align-items: center;
}

.kaiv-brand__mark {
  width: 38px;
  height: 38px;
  border: 1px solid #bfcfc6;
  border-radius: 8px;
  background:
    linear-gradient(135deg, transparent 40%, rgba(36, 124, 98, 0.3) 41%, rgba(36, 124, 98, 0.3) 50%, transparent 51%),
    linear-gradient(90deg, #f4f1ea, #dfe7e0);
}

.kaiv-brand h2 {
  margin: 0;
  font-size: 18px;
  line-height: 1.2;
}

.kaiv-brand p,
.kaiv-status {
  margin: 0;
  color: var(--kaiv-muted);
  font-size: 13px;
  line-height: 1.45;
}

.kaiv-field {
  display: grid;
  gap: 7px;
}

.kaiv-field label,
.kaiv-lead label {
  color: #25322d;
  font-size: 12px;
  font-weight: 700;
}

.kaiv-field input,
.kaiv-field select,
.kaiv-lead input {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--kaiv-line);
  border-radius: 7px;
  background: #fff;
  color: var(--kaiv-text);
  font: inherit;
}

.kaiv-field input[type='range'] {
  min-height: 24px;
  padding: 0;
  accent-color: var(--kaiv-accent);
}

.kaiv-upload {
  padding: 8px;
}

.kaiv-actions,
.kaiv-toolbar__actions,
.kaiv-segmented,
.kaiv-grid {
  display: flex;
  gap: 8px;
}

.kaiv-actions {
  flex-wrap: wrap;
}

.kaiv-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.kaiv-btn,
.kaiv-icon-btn,
.kaiv-segmented button {
  min-height: 38px;
  border: 1px solid var(--kaiv-line);
  border-radius: 7px;
  background: #fff;
  color: var(--kaiv-text);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
}

.kaiv-btn {
  padding: 0 13px;
}

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

.kaiv-btn:hover,
.kaiv-icon-btn:hover,
.kaiv-segmented button:hover,
.kaiv-product:hover {
  border-color: var(--kaiv-accent);
}

.kaiv-btn.is-active,
.kaiv-segmented button.is-active,
.kaiv-segmented button[aria-pressed='true'] {
  border-color: var(--kaiv-accent);
  background: #e7f3ef;
  color: var(--kaiv-accent-strong);
}

.kaiv-segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.kaiv-divider {
  height: 1px;
  background: var(--kaiv-line);
}

.kaiv-products {
  display: grid;
  gap: 8px;
  max-height: 230px;
  overflow: auto;
  padding-right: 2px;
}

.kaiv-product {
  display: grid;
  grid-template-columns: 46px 1fr;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 58px;
  border: 1px solid var(--kaiv-line);
  border-radius: 8px;
  background: #fff;
  color: inherit;
  cursor: pointer;
  padding: 7px;
  text-align: left;
}

.kaiv-product.is-selected {
  border-color: var(--kaiv-accent);
  box-shadow: inset 0 0 0 1px var(--kaiv-accent);
}

.kaiv-product__swatch {
  width: 44px;
  height: 44px;
  border: 1px solid var(--kaiv-line);
  border-radius: 7px;
  background-color: #eef1ed;
  background-position: center;
  background-size: cover;
}

.kaiv-product__text {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.kaiv-product strong,
.kaiv-product small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.kaiv-product strong {
  font-size: 13px;
}

.kaiv-product small {
  color: var(--kaiv-muted);
  font-size: 12px;
}

.kaiv-stage-wrap {
  min-width: 0;
  overflow: hidden;
}

.kaiv-toolbar {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
  min-height: 58px;
  border-bottom: 1px solid var(--kaiv-line);
  padding: 11px 14px;
}

.kaiv-icon-btn {
  display: inline-grid;
  place-items: center;
  width: 38px;
  padding: 0;
}

.kaiv-icon-btn span {
  font-size: 11px;
  letter-spacing: 0;
}

.kaiv-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 440px;
  background:
    linear-gradient(45deg, #edf2ee 25%, transparent 25%),
    linear-gradient(-45deg, #edf2ee 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #edf2ee 75%),
    linear-gradient(-45deg, transparent 75%, #edf2ee 75%);
  background-color: var(--kaiv-bg);
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
  background-size: 20px 20px;
}

.kaiv-canvas {
  display: block;
  width: 100%;
  height: auto;
  max-height: 72vh;
  object-fit: contain;
  touch-action: none;
}

.kaiv-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 5px;
  color: var(--kaiv-muted);
  text-align: center;
  pointer-events: none;
}

.kaiv-empty strong {
  color: var(--kaiv-text);
  font-size: 16px;
}

.kaiv-empty span {
  font-size: 13px;
}

.kaiv-lead {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
  gap: 10px;
  align-items: end;
  border-top: 1px solid var(--kaiv-line);
  padding: 14px;
}

.kaiv-lead > div {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.kaiv-lead .kaiv-btn {
  white-space: nowrap;
}

@media (max-width: 980px) {
  .kaiv-shell {
    grid-template-columns: 1fr;
  }

  .kaiv-panel--controls {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .kaiv-brand,
  .kaiv-actions,
  .kaiv-products,
  .kaiv-divider {
    grid-column: 1 / -1;
  }

  .kaiv-products {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    max-height: none;
  }

  .kaiv-lead {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .kaiv-panel--controls,
  .kaiv-grid,
  .kaiv-products,
  .kaiv-lead {
    grid-template-columns: 1fr;
  }

  .kaiv-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .kaiv-stage {
    min-height: 300px;
  }

  .kaiv-canvas {
    max-height: 62vh;
  }
}