/* ============================================
   CSS GRADIENT GENERATOR
   ============================================ */

.gradient-container {
  max-width: 1120px;
  margin: 0 auto;
}

.gradient-workbench {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(340px, 0.85fr);
  gap: 1.25rem;
  align-items: stretch;
}

.gradient-preview {
  position: relative;
  min-height: 520px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  isolation: isolate;
}

.gradient-preview::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(45deg, rgba(var(--on-primary-rgb), 0.08) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(var(--on-primary-rgb), 0.08) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(var(--on-primary-rgb), 0.08) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(var(--on-primary-rgb), 0.08) 75%);
  background-position: 0 0, 0 16px, 16px -16px, -16px 0;
  background-size: 32px 32px;
  mix-blend-mode: overlay;
  opacity: 0.35;
  pointer-events: none;
}

.gradient-preview-overlay {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
  border: 1px solid rgba(var(--on-primary-rgb), 0.24);
  border-radius: calc(var(--radius) - 2px);
  background: rgba(var(--shadow-color-rgb), 0.28);
  color: var(--on-primary);
  backdrop-filter: blur(16px);
}

.gradient-preview-kicker,
.gradient-preview-label {
  font-size: 0.76rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.gradient-preview-label {
  opacity: 0.82;
  font-variant-numeric: tabular-nums;
}

.gradient-editor,
.gradient-presets,
.gradient-code {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.gradient-editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 1.2rem;
}

.gradient-editor-head {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.gradient-editor-head span {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.gradient-editor-head h2,
.gradient-section-head h3,
.gradient-presets h3,
.gradient-code h3 {
  margin: 0;
  color: var(--text);
  font-size: 1rem;
  line-height: 1.25;
}

.gradient-controls {
  display: grid;
  gap: 0.95rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}

.gradient-controls .input-group {
  margin-bottom: 0;
}

.gradient-controls label {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.gradient-controls input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
}

.gradient-stops {
  display: grid;
  gap: 0.9rem;
  padding-top: 1rem;
}

.gradient-section-head {
  display: grid;
  gap: 0.75rem;
}

.gradient-stops-controls {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.gradient-stops-controls .btn,
.gradient-code-actions .btn {
  min-height: 44px;
  padding: 0.52rem 0.7rem;
  white-space: nowrap;
}

.gradient-stops-bar {
  position: relative;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px rgba(var(--on-primary-rgb), 0.1);
  touch-action: none;
}

.gradient-stop-handle {
  position: absolute;
  top: 50%;
  width: 24px;
  height: 24px;
  border: 3px solid var(--surface);
  border-radius: 50%;
  box-shadow: 0 0 0 1px var(--border), 0 8px 18px rgba(var(--shadow-color-rgb), 0.24);
  transform: translate(-50%, -50%);
  cursor: grab;
  transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.gradient-stop-handle:focus,
.gradient-stop-handle:hover {
  outline: none;
  transform: translate(-50%, -50%) scale(1.12);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2), 0 10px 24px rgba(var(--shadow-color-rgb), 0.28);
}

.gradient-stops-list {
  display: grid;
  gap: 0.55rem;
}

.gradient-stop-row {
  display: grid;
  grid-template-columns: 38px minmax(0, 1fr) auto 34px;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  padding: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
}

.gradient-stop-color {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
}

.gradient-stop-pos {
  width: 100%;
  min-width: 0;
  height: 38px;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-variant-numeric: tabular-nums;
}

.gradient-stop-pos:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.12);
}

.gradient-stop-pct {
  color: var(--text-muted);
  font-size: 0.84rem;
}

.gradient-stop-del {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.gradient-stop-del:hover {
  color: var(--danger);
  border-color: var(--danger);
  background: rgba(var(--danger-rgb), 0.08);
}

.gradient-presets,
.gradient-code {
  margin-top: 1.25rem;
  padding: 1.15rem;
}

.gradient-presets h3 {
  margin-bottom: 0.9rem;
}

.gradient-preset-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.75rem;
}

.gradient-preset {
  position: relative;
  min-height: 76px;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
  font: inherit;
}

.gradient-preset:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.gradient-preset span {
  position: absolute;
  left: 0.55rem;
  right: 0.55rem;
  bottom: 0.55rem;
  overflow: hidden;
  padding: 0.32rem 0.5rem;
  border-radius: 999px;
  background: rgba(var(--shadow-color-rgb), 0.34);
  color: var(--on-primary);
  font-size: 0.74rem;
  font-weight: 700;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
  backdrop-filter: blur(10px);
}

.gradient-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
}

.gradient-code-actions {
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.gradient-code-pre {
  max-height: 340px;
  overflow: auto;
  margin: 0;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) - 2px);
  background: var(--bg);
  color: var(--text);
  font-size: 0.86rem;
  line-height: 1.6;
  white-space: pre;
}

.gradient-code-pre code {
  font-family: 'SF Mono', 'Cascadia Code', 'Roboto Mono', Menlo, Consolas, monospace;
}

@media (max-width: 960px) {
  .gradient-workbench {
    grid-template-columns: 1fr;
  }

  .gradient-preview {
    min-height: 360px;
  }

  .gradient-editor {
    padding: 1rem;
  }
}

@media (max-width: 620px) {
  .gradient-preview {
    min-height: 260px;
  }

  .gradient-preview-overlay,
  .gradient-code-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .gradient-stops-controls,
  .gradient-code-actions,
  .gradient-preset-grid {
    grid-template-columns: 1fr;
  }

  .gradient-code-actions {
    display: grid;
  }

  .gradient-stops-controls .btn,
  .gradient-code-actions .btn {
    width: 100%;
  }
}