.design-page {
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 0%, rgba(42, 122, 185, 0.18), transparent 28rem),
    radial-gradient(circle at 90% 20%, rgba(100, 196, 229, 0.1), transparent 24rem),
    #050b14;
}

.design-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: min(92rem, calc(100% - 3rem));
  min-height: 6rem;
  margin: 0 auto;
  border-bottom: 1px solid var(--line);
}

.design-back {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: #bdcad5;
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  transition: color 180ms ease;
}

.design-back:hover {
  color: var(--white);
}

.design-back span {
  color: var(--cyan);
}

.design-help {
  justify-self: end;
}

.design-main {
  width: min(94rem, calc(100% - 3rem));
  margin: 0 auto;
  padding: 4.5rem 0 5rem;
}

.designer-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.55fr);
  align-items: end;
  gap: 3rem;
  width: min(86rem, 100%);
  margin: 0 auto 2.5rem;
}

.designer-intro h1 {
  max-width: none;
  font-size: clamp(3rem, 6vw, 6.2rem);
  line-height: 0.92;
}

.designer-intro > p {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.65;
}

.designer-frame {
  overflow: hidden;
  border: 1px solid rgba(127, 194, 230, 0.28);
  border-radius: var(--radius-lg);
  background: #07111d;
  box-shadow: var(--shadow), 0 0 80px rgba(51, 142, 204, 0.09);
}

.designer-toolbar,
.designer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.4rem;
  padding: 0 1.25rem;
  color: #7f95a7;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.designer-toolbar {
  border-bottom: 1px solid var(--line);
}

.designer-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.designer-status i {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: #ffd36e;
  box-shadow: 0 0 12px #ffd36e;
}

.designer-status b {
  color: #acbdca;
  font-weight: 700;
}

.designer-ready .designer-status i {
  background: #69e6bd;
  box-shadow: 0 0 12px #69e6bd;
}

.designer-stage {
  position: relative;
  min-height: 720px;
  padding: 0.75rem;
  background:
    linear-gradient(rgba(100, 196, 229, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(100, 196, 229, 0.035) 1px, transparent 1px),
    #06101a;
  background-size: 36px 36px;
}

.embed-container {
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(107, 183, 220, 0.2);
  border-radius: 1.2rem;
  background: #f4f7f9;
}

#inksoftEmbed {
  min-height: 720px;
  border-radius: inherit;
}

.designer-loading,
.designer-error {
  position: absolute;
  inset: 0.75rem;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 1.2rem;
  background:
    radial-gradient(circle at center, rgba(25, 81, 124, 0.2), transparent 26rem),
    #081421;
  flex-direction: column;
  text-align: center;
  transition: opacity 350ms ease, visibility 350ms ease;
}

.designer-ready .designer-loading {
  visibility: hidden;
  opacity: 0;
}

.loading-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 4.5rem;
  height: 4.5rem;
  margin-bottom: 1.3rem;
}

.loading-mark span,
.loading-mark i {
  position: absolute;
  border-radius: 50%;
}

.loading-mark span {
  inset: 0;
  border: 1px solid rgba(100, 196, 229, 0.28);
  border-top-color: var(--cyan);
  animation: engine-spin 1.4s linear infinite;
}

.loading-mark i {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--cyan);
  box-shadow: 0 0 24px rgba(100, 196, 229, 0.8);
}

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

.designer-loading p,
.designer-error p {
  margin: 0 0 0.45rem;
  color: var(--white);
  font-size: 1rem;
  font-weight: 800;
}

.designer-loading small {
  color: var(--muted-2);
  font-size: 0.78rem;
}

.designer-error[hidden] {
  display: none;
}

.designer-error a {
  color: var(--cyan-bright);
  font-size: 0.85rem;
  font-weight: 800;
}

.designer-footer {
  min-height: 4rem;
  border-top: 1px solid var(--line);
  letter-spacing: 0.05em;
  text-transform: none;
}

.designer-footer p {
  margin: 0;
}

.designer-footer p:first-child span {
  margin-right: 0.4rem;
  color: var(--cyan);
}

.designer-footer a {
  color: var(--cyan-bright);
  text-decoration: none;
}

@media (max-width: 900px) {
  .design-header {
    grid-template-columns: 1fr auto;
    width: min(100% - 2rem, 86rem);
    min-height: 5rem;
  }

  .design-back {
    display: none;
  }

  .design-help {
    min-height: 2.85rem;
    padding: 0.7rem 0.9rem 0.7rem 1.1rem;
  }

  .design-main {
    width: calc(100% - 2rem);
    padding-top: 3rem;
  }

  .designer-intro {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .designer-intro > p {
    max-width: 36rem;
  }

  .designer-toolbar > span:last-child {
    display: none;
  }

  .designer-footer {
    align-items: flex-start;
    padding: 1rem;
    flex-direction: column;
    gap: 0.6rem;
  }
}

@media (max-width: 560px) {
  .design-header {
    width: calc(100% - 1.5rem);
  }

  .design-help span:first-child {
    display: none;
  }

  .design-help {
    width: 2.8rem;
    padding: 0;
  }

  .design-main {
    width: calc(100% - 1rem);
    padding-top: 2.5rem;
  }

  .designer-intro {
    width: calc(100% - 1rem);
  }

  .designer-intro h1 {
    font-size: clamp(3rem, 15vw, 4.8rem);
  }

  .designer-frame {
    border-radius: 1.15rem;
  }

  .designer-toolbar {
    padding: 0 0.85rem;
  }

  .designer-stage {
    padding: 0.35rem;
  }

  .embed-container,
  .designer-loading,
  .designer-error {
    border-radius: 0.85rem;
  }

  .designer-loading,
  .designer-error {
    inset: 0.35rem;
  }
}