.gradient-page {
  max-width: 1160px;
  margin: 0 auto;
  padding: 8px 0 40px;
}

/* 상단 */
.gradient-page .utility-top {
  text-align: center;
  padding: 30px 20px 28px;
}

.gradient-page .utility-label {
  display: inline-flex;
  align-items: center;
  margin-bottom: 12px;
  padding: 6px 13px;
  border-radius: 999px;
  background: #eff6ff;
  color: #2563eb;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.gradient-page .utility-title {
  margin: 0;
  color: #0f172a;
  font-size: clamp(32px, 4vw, 46px);
  font-weight: 900;
  letter-spacing: -0.04em;
}

.gradient-page .utility-desc {
  max-width: 760px;
  margin: 16px auto 0;
  color: #64748b;
  font-size: 15px;
  line-height: 1.8;
}

/* 요약 */
.gradient-summary-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 22px;
}

.gradient-summary-item {
  padding: 20px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 20px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.06);
}

.gradient-summary-item::before {
  content: "";
  display: block;
  width: 36px;
  height: 4px;
  margin-bottom: 14px;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #7c3aed);
}

.gradient-summary-item strong {
  display: block;
  margin-bottom: 7px;
  color: #0f172a;
  font-size: 15px;
  font-weight: 900;
}

.gradient-summary-item span {
  color: #64748b;
  font-size: 13px;
  line-height: 1.7;
}

/* 카드 */
.gradient-generator-card,
.gradient-result-card {
  padding: 28px;
  margin-bottom: 24px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.24);
  border-radius: 26px;
  background: #ffffff;
  box-shadow: 0 18px 48px rgba(15, 23, 42, 0.08);
}

.gradient-card-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 24px;
}

.gradient-card-head h2 {
  margin: 0 0 8px;
  color: #0f172a;
  font-size: 22px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.gradient-card-head p {
  margin: 0;
  color: #64748b;
  font-size: 14px;
  line-height: 1.6;
}

.gradient-head-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* 레이아웃 */
.gradient-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 26px;
  align-items: start;
}

.gradient-control-panel {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.gradient-preview-panel {
  position: sticky;
  top: 20px;
  padding: 22px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 24px;
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), transparent 30%),
    #f8fafc;
}

.gradient-preview-label {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 11px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 12px;
  font-weight: 900;
}

/* 폼 */
.gradient-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.gradient-field {
  padding: 18px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 20px;
  background: #f8fafc;
}

.gradient-page .utility-field-label {
  display: block;
  margin-bottom: 10px;
  color: #0f172a;
  font-weight: 900;
}

.gradient-input {
  width: 100%;
  min-height: 48px;
  box-sizing: border-box;
  border-radius: 14px;
  font-weight: 700;
}

.gradient-input:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.14);
}

.gradient-field-help {
  margin: 10px 0 0;
  color: #64748b;
  font-size: 12px;
  line-height: 1.6;
}

/* 컬러 */
.gradient-color-row {
  display: flex;
  gap: 12px;
  align-items: center;
}

.gradient-color {
  width: 64px;
  min-width: 64px;
  height: 48px;
  padding: 0;
  border: none;
  border-radius: 14px;
  background: none;
  cursor: pointer;
  overflow: hidden;
}

.gradient-color::-webkit-color-swatch-wrapper {
  padding: 0;
}

.gradient-color::-webkit-color-swatch {
  border: none;
  border-radius: 14px;
}

/* Range */
.gradient-range {
  width: 100%;
  margin: 6px 0 12px;
  accent-color: #2563eb;
}

.gradient-range-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.gradient-range-row span {
  color: #94a3b8;
  font-size: 12px;
  font-weight: 700;
}

.gradient-range-row strong {
  color: #2563eb;
  font-size: 14px;
  font-weight: 900;
}

/* 프리셋 */
.gradient-preset-wrap {
  padding: 22px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  border-radius: 24px;
  background: #f8fafc;
}

.gradient-preset-wrap h3 {
  margin: 0 0 18px;
  color: #0f172a;
  font-size: 18px;
  font-weight: 900;
}

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

.gradient-preset {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 58px;
  padding: 0 14px;
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 16px;
  background: #ffffff;
  color: #0f172a;
  font-size: 13px;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 0.18s ease,
    border-color 0.18s ease,
    box-shadow 0.18s ease;
}

.gradient-preset:hover {
  transform: translateY(-2px);
  border-color: rgba(37, 99, 235, 0.3);
  box-shadow: 0 12px 24px rgba(15, 23, 42, 0.08);
}

.gradient-preset span {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  flex-shrink: 0;
}

/* 미리보기 */
.gradient-preview-box {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 340px;
  padding: 28px;
  overflow: hidden;
  border-radius: 28px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.18),
    0 24px 48px rgba(37, 99, 235, 0.18);
}

.gradient-preview-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top right, rgba(255,255,255,0.18), transparent 24%),
    radial-gradient(circle at bottom left, rgba(255,255,255,0.12), transparent 20%);
  pointer-events: none;
}

.gradient-preview-box strong {
  position: relative;
  display: block;
  margin-bottom: 8px;
  color: #ffffff;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.gradient-preview-box p {
  position: relative;
  margin: 0;
  color: rgba(255,255,255,0.88);
  font-size: 15px;
  line-height: 1.7;
}

/* 미리보기 정보 */
.gradient-preview-info {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.gradient-preview-info div {
  padding: 16px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid rgba(148, 163, 184, 0.18);
}

.gradient-preview-info span {
  display: block;
  margin-bottom: 8px;
  color: #64748b;
  font-size: 12px;
  font-weight: 700;
}

.gradient-preview-info strong {
  color: #0f172a;
  font-size: 15px;
  font-weight: 900;
}

/* 버튼 */
.gradient-action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.gradient-page .utility-btn {
  min-height: 46px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 800;
}

.gradient-page .utility-btn-primary {
  border-color: #0f172a;
  background: linear-gradient(135deg, #0f172a, #2563eb);
  color: #ffffff;
}

.gradient-page .utility-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.18);
}

/* 상태 */
.gradient-status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 82px;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
}

.gradient-status-badge.is-ready {
  background: #f1f5f9;
  color: #475569;
}

.gradient-status-badge.is-success {
  background: #dbeafe;
  color: #1d4ed8;
}

.gradient-status-badge.is-error {
  background: #fee2e2;
  color: #b91c1c;
}

/* 결과 */
.gradient-result-box {
  min-height: 320px;
  max-height: 680px;
  overflow: auto;
  margin-top: 18px;
  padding: 24px;
  border-radius: 20px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.9;
  font-size: 14px;
  font-family:
    Consolas,
    Monaco,
    "SFMono-Regular",
    "Courier New",
    monospace;
}

.gradient-result-box.is-ready {
  border: 1px solid rgba(148, 163, 184, 0.24);
  background: #f8fafc;
  color: #64748b;
}

.gradient-result-box.is-success {
  border: 1px solid rgba(37, 99, 235, 0.22);
  background:
    radial-gradient(circle at top right, rgba(37, 99, 235, 0.08), transparent 28%),
    linear-gradient(180deg, #0f172a 0%, #111827 100%);
  color: #dbeafe;
}

.gradient-result-box.is-error {
  border: 1px solid rgba(239, 68, 68, 0.28);
  background: #fef2f2;
  color: #991b1b;
}

/* 도움말 */
.gradient-page .help-panel {
  margin-top: 30px;
}

.gradient-page .help-panel > h2 {
  margin: 0 0 18px;
  color: #0f172a;
  font-size: 28px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.gradient-page .help-box {
  border-radius: 22px;
}

/* 반응형 */
@media (max-width: 1080px) {
  .gradient-layout {
    grid-template-columns: 1fr;
  }

  .gradient-preview-panel {
    position: relative;
    top: auto;
  }
}

@media (max-width: 980px) {
  .gradient-summary-card,
  .gradient-form-grid,
  .gradient-preview-info,
  .gradient-preset-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .gradient-page {
    padding: 0 0 28px;
  }

  .gradient-page .utility-top {
    padding: 24px 14px 22px;
  }

  .gradient-generator-card,
  .gradient-result-card {
    padding: 22px;
    border-radius: 22px;
  }

  .gradient-card-head {
    flex-direction: column;
    gap: 14px;
  }

  .gradient-head-actions,
  .gradient-action-row {
    width: 100%;
    flex-direction: column;
  }

  .gradient-head-actions .utility-btn,
  .gradient-action-row .utility-btn {
    width: 100%;
  }

  .gradient-preview-box {
    min-height: 240px;
    padding: 22px;
  }

  .gradient-preview-box strong {
    font-size: 24px;
  }

  .gradient-result-box {
    min-height: 260px;
    font-size: 13px;
  }

  .gradient-page .utility-title {
    font-size: 34px;
  }
}