.imb-shell {
  --imb-cream: #f7f2ea;
  --imb-ink: #111;
  --imb-grid: #e9e0d4;
  --imb-accent: #d6ff3f;
  background: var(--imb-cream);
  color: var(--imb-ink);
  font-family: Inter, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", ui-sans-serif, system-ui, sans-serif;
  margin-inline: calc(50% - 50vw);
  overflow: hidden;
}

.imb-shell * {
  box-sizing: border-box;
}

.imb-shell button,
.imb-shell input,
.imb-shell textarea {
  font: inherit;
}

.imb-hero {
  min-height: 58vh;
  padding: clamp(42px, 7vw, 86px) clamp(18px, 4vw, 52px) 34px;
}

.imb-hero__copy {
  max-width: 980px;
}

.imb-eyebrow,
.imb-label,
.imb-strip,
.imb-upload span,
.imb-note {
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0;
}

.imb-eyebrow {
  margin: 0 0 16px;
}

.imb-shell h1,
.imb-shell h2,
.imb-shell p {
  margin-top: 0;
}

.imb-shell h1,
.imb-shell h2 {
  font-weight: 950;
  letter-spacing: 0;
  line-height: 1.02;
}

.imb-shell h1 {
  font-size: clamp(46px, 9vw, 128px);
  margin-bottom: 22px;
}

.imb-shell .imb-hero-title {
  font-size: clamp(30px, 5.2vw, 86px);
  line-height: 1;
  max-width: none;
  overflow-wrap: normal;
  white-space: nowrap;
}

.imb-shell h2 {
  font-size: clamp(32px, 5vw, 74px);
  margin-bottom: 0;
}

.imb-hero__copy > p:not(.imb-eyebrow) {
  font-size: clamp(18px, 2.2vw, 28px);
  line-height: 1.45;
  max-width: 760px;
}

.imb-button {
  align-items: center;
  border: 1px solid var(--imb-ink);
  cursor: pointer;
  display: inline-flex;
  font-size: 14px;
  font-weight: 900;
  justify-content: center;
  margin-top: 18px;
  min-height: 50px;
  min-width: 154px;
  padding: 14px 22px;
  text-decoration: none;
}

.imb-button--dark {
  background: var(--imb-ink);
  color: #fff;
}

.imb-strip {
  border-block: 1px solid var(--imb-ink);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.imb-strip span {
  min-height: 58px;
  padding: 20px;
}

.imb-strip span + span {
  border-left: 1px solid var(--imb-ink);
}

.imb-heading {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(220px, 0.35fr) minmax(0, 1fr);
  padding: clamp(44px, 7vw, 92px) clamp(18px, 4vw, 52px) 30px;
}

.imb-alert {
  border: 1px solid var(--imb-ink);
  font-size: 14px;
  font-weight: 800;
  line-height: 1.55;
  margin: 0 clamp(18px, 4vw, 52px) 18px;
  padding: 16px 18px;
}

.imb-alert--success {
  background: var(--imb-accent);
}

.imb-alert--error {
  background: #fff;
  color: #8a1f11;
}

.imb-builder {
  margin: 0 clamp(18px, 4vw, 52px) clamp(48px, 8vw, 108px);
}

.imb-form {
  background: #fff;
  border: 1px solid var(--imb-ink);
  display: grid;
  gap: 22px;
  padding: clamp(18px, 4vw, 36px);
}

.imb-honeypot {
  height: 1px;
  left: -10000px;
  overflow: hidden;
  position: absolute;
  top: auto;
  width: 1px;
}

.imb-upload {
  border: 2px dashed var(--imb-ink);
  cursor: pointer;
  display: grid;
  gap: 10px;
  min-height: 132px;
  padding: 24px;
  place-content: center;
  text-align: center;
}

.imb-upload input {
  height: 1px;
  opacity: 0;
  position: absolute;
  width: 1px;
}

.imb-upload strong {
  font-size: clamp(18px, 2.4vw, 26px);
  overflow-wrap: anywhere;
}

.imb-upload-error,
.imb-upload-quality,
.imb-moq-error {
  color: #8a1f11;
  font-size: 13px;
  font-weight: 850;
  line-height: 1.45;
  margin: -12px 0 0;
  min-height: 18px;
}

.imb-upload-quality {
  color: var(--imb-ink);
}

.imb-preview {
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(17, 17, 17, 0.08) 1px, transparent 1px), var(--imb-grid);
  background-size: 34px 34px;
  border: 1px solid var(--imb-ink);
  display: grid;
  gap: 18px;
  padding: clamp(16px, 3vw, 28px);
}

.imb-preview__head {
  align-items: end;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  justify-content: space-between;
}

.imb-preview__head strong {
  font-size: clamp(22px, 3vw, 36px);
  font-weight: 950;
}

.imb-preview__head span {
  font-size: 13px;
  font-weight: 750;
}

.imb-stage {
  display: grid;
  gap: clamp(18px, 4vw, 40px);
  grid-template-columns: 1fr;
}

.imb-shirt-card {
  display: grid;
  gap: 12px;
  justify-items: center;
  min-width: 0;
}

.imb-shirt-card > span {
  background: var(--imb-ink);
  color: #fff;
  font-size: 13px;
  font-weight: 900;
  padding: 8px 14px;
}

.imb-shirt-card--wide {
  width: 100%;
}

.imb-shirt {
  background: var(--imb-shirt);
  border: 2px solid rgba(17, 17, 17, 0.82);
  border-radius: 14px 14px 22px 22px;
  box-shadow: 0 22px 52px rgba(17, 17, 17, 0.18);
  height: clamp(360px, 46vw, 560px);
  max-width: 420px;
  position: relative;
  touch-action: none;
  width: min(74vw, 390px);
}

.imb-shirt__sleeve {
  background: var(--imb-shirt);
  border: 2px solid rgba(17, 17, 17, 0.82);
  height: 34%;
  position: absolute;
  top: 58px;
  width: 30%;
  z-index: 0;
}

.imb-shirt__sleeve--left {
  border-radius: 30px 6px 18px 18px;
  left: -24%;
  transform: rotate(16deg);
}

.imb-shirt__sleeve--right {
  border-radius: 6px 30px 18px 18px;
  right: -24%;
  transform: rotate(-16deg);
}

.imb-shirt__neck,
.imb-shirt__back-neck {
  background: var(--imb-grid);
  border: 2px solid rgba(17, 17, 17, 0.82);
  left: 50%;
  position: absolute;
  top: -2px;
  transform: translateX(-50%);
  z-index: 2;
}

.imb-shirt__neck {
  border-radius: 0 0 90px 90px;
  height: 68px;
  width: 150px;
}

.imb-shirt__back-neck {
  border-radius: 0 0 36px 36px;
  height: 34px;
  width: 132px;
}

.imb-print-zone {
  align-items: center;
  border: 1px dashed rgba(17, 17, 17, 0.42);
  color: var(--imb-ink);
  cursor: grab;
  display: flex;
  height: 48%;
  justify-content: center;
  left: 50%;
  overflow: hidden;
  padding: 10px;
  position: absolute;
  top: 26%;
  transform: translateX(-50%);
  user-select: none;
  width: 58%;
  z-index: 3;
}

.imb-print-zone:active {
  cursor: grabbing;
}

.imb-print-zone span {
  font-size: clamp(18px, 3vw, 34px);
  font-weight: 950;
  text-align: center;
}

.imb-print-zone img {
  height: 100%;
  object-fit: contain;
  transform-origin: center;
  width: 100%;
  will-change: transform;
}

.imb-control,
.imb-contact-grid label {
  display: grid;
  gap: 10px;
}

.imb-swatches {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(8, minmax(34px, 1fr));
}

.imb-swatches button {
  background: var(--imb-swatch);
  border: 1px solid var(--imb-ink);
  cursor: pointer;
  min-height: 46px;
  position: relative;
}

.imb-swatches button.is-active::after {
  border: 3px solid var(--imb-accent);
  content: "";
  inset: -5px;
  position: absolute;
}

.imb-size-grid,
.imb-contact-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.imb-contact-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.imb-size-grid label {
  border: 1px solid var(--imb-ink);
  display: grid;
  gap: 6px;
  padding: 10px;
}

.imb-size-grid span {
  font-size: 12px;
  font-weight: 900;
}

.imb-form input:not([type="file"]),
.imb-form textarea {
  background: #fff;
  border: 1px solid var(--imb-ink);
  border-radius: 0;
  color: var(--imb-ink);
  min-height: 48px;
  padding: 10px 12px;
  width: 100%;
}

.imb-form .imb-size-grid input {
  border: 0;
  min-height: 34px;
  padding: 0;
  text-align: center;
}

.imb-form textarea {
  resize: vertical;
}

.imb-fixed-delivery,
.imb-next-steps,
.imb-estimate {
  border: 1px solid var(--imb-ink);
  display: grid;
  gap: 8px;
  padding: 16px;
}

.imb-fixed-delivery {
  background: #f8f8f8;
}

.imb-fixed-delivery strong {
  font-size: 22px;
  font-weight: 950;
}

.imb-consents {
  display: grid;
  gap: 10px;
}

.imb-consents label {
  align-items: start;
  border: 1px solid var(--imb-ink);
  display: grid;
  gap: 10px;
  grid-template-columns: auto 1fr;
  line-height: 1.45;
  padding: 12px;
}

.imb-consents input {
  accent-color: var(--imb-ink);
  margin-top: 4px;
}

.imb-consents span {
  font-size: 13px;
  font-weight: 800;
}

.imb-estimate {
  background: var(--imb-accent);
}

.imb-estimate span,
.imb-estimate small,
.imb-note,
.imb-next-steps p,
.imb-next-steps a {
  font-size: 13px;
  font-weight: 800;
  line-height: 1.5;
  margin: 0;
}

.imb-estimate strong {
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1;
}

.imb-next-steps strong {
  font-size: 16px;
  font-weight: 950;
}

.imb-next-steps a {
  color: var(--imb-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.imb-note {
  margin: 0;
}

.imb-shirt {
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  height: auto;
  max-width: 980px;
  min-height: 0;
  width: 100%;
}

.imb-shirt__image {
  display: block;
  height: auto;
  position: relative;
  width: 100%;
  z-index: 1;
}

.imb-shirt--layout {
  --imb-shirt-pad: clamp(12px, 2vw, 24px);
  aspect-ratio: 740 / 340;
  background: #fff;
  border: 1px solid rgba(17, 17, 17, 0.3);
  overflow: hidden;
  width: min(100%, 980px);
}

.imb-shirt--layout .imb-shirt__image {
  height: 100%;
  object-fit: contain;
  padding: var(--imb-shirt-pad);
  position: relative;
  z-index: 3;
}

.imb-print-zone {
  border: 1px dashed rgba(17, 17, 17, 0.28);
  height: 100%;
  inset: 0;
  padding: 0;
  top: auto;
  transform: none;
  width: 100%;
  z-index: 4;
}

.imb-artwork-item {
  cursor: grab;
  left: 50%;
  position: absolute;
  top: 50%;
  transform-origin: center;
  width: clamp(58px, 13vw, 150px);
  will-change: transform;
}

.imb-artwork-item:active {
  cursor: grabbing;
}

.imb-artwork-item img {
  display: block;
  height: auto;
  max-width: none;
  object-fit: contain;
  pointer-events: none;
  width: 100%;
}

.imb-artwork-item.is-selected {
  outline: 1px dashed var(--imb-ink);
  outline-offset: 5px;
  z-index: 8;
}

.imb-artwork-remove {
  align-items: center;
  background: var(--imb-ink);
  border: 1px solid #fff;
  border-radius: 999px;
  color: #fff;
  cursor: pointer;
  display: none;
  font-size: 11px;
  font-weight: 950;
  height: 22px;
  justify-content: center;
  line-height: 1;
  padding: 0;
  position: absolute;
  right: -14px;
  top: -14px;
  width: 22px;
}

.imb-artwork-item.is-selected .imb-artwork-remove {
  display: inline-flex;
}

.imb-product-info {
  background: #fff;
  border-top: 1px solid var(--imb-ink);
  display: grid;
  gap: clamp(24px, 4vw, 52px);
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  padding: clamp(48px, 8vw, 96px) clamp(18px, 4vw, 52px);
}

.imb-product-info h2 {
  font-size: clamp(34px, 5vw, 76px);
  line-height: 1;
  margin-bottom: 18px;
}

.imb-product-info h3 {
  font-size: 16px;
  margin: 0 0 10px;
}

.imb-product-info p,
.imb-product-info li,
.imb-size-chart figcaption {
  font-size: 14px;
  font-weight: 750;
  line-height: 1.65;
}

.imb-product-info__grid {
  display: grid;
  gap: 18px;
  margin-top: 28px;
}

.imb-product-info ul {
  margin: 0;
  padding-left: 20px;
}

.imb-size-chart {
  align-self: start;
  background: #1b1b1b;
  color: #fff;
  margin: 0;
  padding: clamp(14px, 2vw, 22px);
}

.imb-size-chart table {
  border-collapse: collapse;
  font-size: clamp(11px, 1.2vw, 14px);
  font-weight: 850;
  width: 100%;
}

.imb-size-chart th,
.imb-size-chart td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding: clamp(10px, 1.3vw, 16px) 8px;
  text-align: left;
  white-space: nowrap;
}

.imb-size-chart th:not(:first-child),
.imb-size-chart td:not(:first-child) {
  text-align: center;
}

.imb-size-chart figcaption {
  color: #e8e8e8;
  margin-top: 12px;
}

.imb-process {
  background: var(--imb-ink);
  color: #fff;
  display: grid;
  gap: 34px;
  grid-template-columns: minmax(240px, 0.65fr) minmax(0, 1fr);
  padding: clamp(48px, 8vw, 96px) clamp(18px, 4vw, 52px);
}

.imb-process ol {
  border-top: 1px solid #fff;
  list-style: none;
  margin: 0;
  padding: 0;
}

.imb-process li {
  border-bottom: 1px solid #fff;
  display: grid;
  gap: 14px;
  grid-template-columns: 60px 190px 1fr;
  padding: 24px 0;
}

.imb-process span,
.imb-process strong {
  font-weight: 900;
}

.imb-process p {
  color: #ddd;
  line-height: 1.45;
  margin: 0;
}

.imb-process .imb-eyebrow,
.imb-process__headline {
  color: #fff;
  font-size: clamp(13px, 1.2vw, 17px);
  font-weight: 900;
  line-height: 1.4;
}

.imb-process__headline {
  margin-bottom: 0;
  max-width: 360px;
}

@media (max-width: 900px) {
  .imb-heading,
  .imb-process,
  .imb-product-info {
    grid-template-columns: 1fr;
  }

  .imb-strip,
  .imb-contact-grid {
    grid-template-columns: 1fr;
  }

  .imb-strip span + span {
    border-left: 0;
    border-top: 1px solid var(--imb-ink);
  }

  .imb-process li {
    grid-template-columns: 50px 1fr;
  }

  .imb-process li p {
    grid-column: 2;
  }
}

@media (max-width: 560px) {
  .imb-swatches {
    grid-template-columns: repeat(4, minmax(44px, 1fr));
  }

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

  .imb-shell .imb-hero-title {
    font-size: clamp(22px, 7.2vw, 34px);
  }

  .imb-shirt--layout {
    min-width: 0;
  }

  .imb-artwork-item {
    width: clamp(44px, 18vw, 96px);
  }

  .imb-size-chart {
    overflow-x: auto;
  }

  .imb-shirt {
    width: min(74vw, 270px);
  }
}