.utm-page {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.utm-hero,
.utm-card {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.78);
  border-radius: 28px;
  box-shadow: var(--card-shadow);
}

.utm-hero {
  overflow: hidden;
  padding: 28px;
  background:
    radial-gradient(circle at top right, rgba(252, 204, 235, 0.46), transparent 30%),
    radial-gradient(circle at bottom left, rgba(214, 247, 226, 0.74), transparent 34%),
    linear-gradient(135deg, #ffffff 0%, #f7fbff 58%, #fff8f4 100%);
}

.utm-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 56px;
}

.utm-logo {
  width: 112px;
}

.utm-home-link {
  color: var(--gray-600);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
}

.utm-home-link:hover {
  color: var(--black);
}

.utm-hero-copy {
  max-width: 760px;
}

.utm-hero-copy h1,
.utm-card-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 100;
  letter-spacing: -0.04em;
}

.utm-hero-copy h1 {
  margin-top: 8px;
  font-size: clamp(3rem, 8vw, 6.5rem);
  line-height: 0.88;
}

.utm-hero-copy p:last-child {
  max-width: 660px;
  color: var(--gray-600);
  font-size: 18px;
  line-height: 1.7;
}

.utm-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 20px;
  margin-top: 20px;
}

.utm-card {
  padding: 24px;
}

.utm-card-heading {
  margin-bottom: 22px;
}

.utm-card-heading h2 {
  margin-top: 6px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 0.95;
}

.utm-form {
  display: grid;
  gap: 16px;
}

.utm-form label,
.utm-advanced label {
  display: grid;
  gap: 8px;
}

.utm-form label span,
.utm-advanced label span {
  color: var(--gray-600);
  font-size: 13px;
  font-weight: 700;
}

.utm-period-preview {
  color: var(--gray-500);
  font-size: 13px;
  line-height: 1.5;
}

.utm-form input,
.utm-form select,
.utm-output-box textarea {
  width: 100%;
  border: 1px solid var(--yma-line);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.92);
  color: var(--black);
  outline: none;
}

.utm-form input,
.utm-form select {
  min-height: 48px;
  padding: 0 14px;
}

.utm-form input:focus,
.utm-form select:focus,
.utm-output-box textarea:focus {
  border-color: rgba(26, 26, 26, 0.42);
  box-shadow: 0 0 0 4px rgba(232, 244, 255, 0.8);
}

.utm-two-col {
  display: grid;
  grid-template-columns: 1fr 120px;
  gap: 14px;
}

.utm-advanced {
  margin-top: 4px;
  border: 1px solid var(--yma-line-soft);
  border-radius: 18px;
  padding: 14px;
}

.utm-advanced summary {
  cursor: pointer;
  font-weight: 800;
}

.utm-advanced[open] {
  display: grid;
  gap: 14px;
}

.utm-help,
.utm-copy-status {
  margin: 0;
  color: var(--gray-500);
  font-size: 13px;
  line-height: 1.6;
}

.utm-output-card {
  align-self: start;
  position: sticky;
  top: 20px;
}

.utm-output-box {
  display: grid;
  gap: 12px;
}

.utm-output-box textarea {
  min-height: 152px;
  padding: 14px;
  color: var(--gray-800);
  line-height: 1.5;
  resize: vertical;
}

.utm-summary {
  display: grid;
  gap: 10px;
  margin: 20px 0 0;
}

.utm-summary div {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--yma-line-soft);
}

.utm-summary dt {
  color: var(--gray-500);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.utm-summary dd {
  margin: 0;
  color: var(--gray-800);
  overflow-wrap: anywhere;
}

.utm-guide {
  margin-top: 20px;
}

.utm-guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.utm-guide-grid article {
  min-height: 150px;
  padding: 18px;
  border: 1px solid var(--yma-line-soft);
  border-radius: 20px;
  background: rgba(248, 250, 252, 0.72);
}

.utm-guide-grid h3 {
  margin: 0 0 10px;
}

.utm-guide-grid p {
  margin: 0;
  color: var(--gray-600);
  line-height: 1.65;
}

@media (max-width: 860px) {
  .utm-layout,
  .utm-guide-grid {
    grid-template-columns: 1fr;
  }

  .utm-output-card {
    position: static;
  }
}

@media (max-width: 560px) {
  .utm-page {
    width: min(100% - 20px, 1180px);
    padding-top: 10px;
  }

  .utm-hero,
  .utm-card {
    border-radius: 22px;
    padding: 20px;
  }

  .utm-hero-top,
  .utm-two-col {
    grid-template-columns: 1fr;
  }

  .utm-hero-top {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 36px;
  }
}