/**
 * public/css/tools/gradient-background-generator.css
 * Gradient Background Generator  —  prefix: gbg-
 * Accent: #DB2777 (pink)
 * Loads after: style.css · desktop.css · tool-cards.css · design-tools-shared.css
 */

/* ── tc-icon--violet ── */
.tc-icon--violet { background: #F5F3FF; color: #7C3AED; }

.gbg-card {
  padding: 0 !important;
  overflow: hidden;
}

/* Split layout */
.gbg-layout {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  min-height: 540px;
}

.gbg-left {
  flex: 1 1 295px;
  padding: 28px;
  border-right: 1px solid #f1f5f9;
  display: flex;
  flex-direction: column;
  gap: 22px;
  overflow-y: auto;
  max-height: 640px;
  background: #fafafa;
}

.gbg-right {
  flex: 1 1 320px;
  display: flex;
  flex-direction: column;
}

/* Section label */
.gbg-label {
  display: block;
  font-size: .68rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .09em;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.gbg-section { display: flex; flex-direction: column; }

/* Type toggle buttons */
.gbg-type-btns {
  display: flex;
  gap: 0;
  border: 1.5px solid var(--border);
  border-radius: 9px;
  overflow: hidden;
  width: fit-content;
  box-shadow: 0 1px 3px rgba(0,0,0,.05);
}

.gbg-type-opt { display: flex; }
.gbg-type-opt input { display: none; }
.gbg-type-opt span {
  padding: 9px 22px;
  cursor: pointer;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface);
  border-right: 1.5px solid var(--border);
  transition: background .15s, color .15s;
  user-select: none;
}
.gbg-type-opt:last-child span { border-right: none; }
.gbg-type-opt input:checked + span {
  background: linear-gradient(135deg, #db2777 0%, #be185d 100%);
  color: #fff;
  font-weight: 800;
}

/* Angle slider */
.gbg-angle-range {
  width: 100%;
  accent-color: #db2777;
  cursor: pointer;
  margin-top: 6px;
  height: 4px;
}

/* Color stops */
.gbg-stops-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.gbg-stops-header button {
  background: linear-gradient(135deg, #fce7f3 0%, #fbcfe8 100%);
  color: #9d174d;
  border: 1.5px solid #f9a8d4;
  border-radius: 8px;
  padding: 7px 14px;
  font-family: inherit;
  font-size: .8rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .15s, transform .15s cubic-bezier(.34,1.56,.64,1);
  min-height: 36px;
}
.gbg-stops-header button:hover {
  background: #fdb8d7;
  border-color: #f472b6;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(219,39,119,.2);
}

.gbg-stop-row {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--surface);
  border: 1.5px solid #fce7f3;
  border-radius: 10px;
  padding: 10px 13px;
  margin-bottom: 8px;
  transition: border-color .15s, box-shadow .15s;
}
.gbg-stop-row:hover {
  border-color: #f9a8d4;
  box-shadow: 0 3px 10px rgba(219,39,119,.08);
}

.gbg-stop-row input[type="color"] {
  width: 38px;
  height: 34px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  padding: 2px;
  cursor: pointer;
  flex-shrink: 0;
  -webkit-appearance: none;
  appearance: none;
  background: none;
  transition: border-color .15s, transform .15s;
}
.gbg-stop-row input[type="color"]:hover {
  border-color: #db2777;
  transform: scale(1.05);
}

.gbg-stop-row input[type="range"] {
  flex: 1;
  accent-color: #db2777;
  cursor: pointer;
}

.gbg-stop-pos {
  width: 44px;
  font-size: .8rem;
  text-align: center;
  border: 1.5px solid var(--border);
  border-radius: 6px;
  padding: 4px 4px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s;
  min-height: 32px;
}
.gbg-stop-pos:focus { border-color: #db2777; }

.gbg-stop-pct {
  font-size: .74rem;
  color: var(--text-muted);
  flex-shrink: 0;
}

.gbg-remove-stop {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 3px 5px;
  flex-shrink: 0;
  font-family: inherit;
  line-height: 1;
  transition: color .15s, transform .15s;
  border-radius: 5px;
}
.gbg-remove-stop:hover {
  color: #ef4444;
  background: #fef2f2;
  transform: scale(1.1);
}

/* Presets */
.gbg-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.gbg-preset-btn {
  border: none;
  border-radius: 9px;
  padding: 7px 16px;
  cursor: pointer;
  font-family: inherit;
  font-size: .8rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0,0,0,.3);
  transition: transform .2s cubic-bezier(.34,1.56,.64,1), box-shadow .15s;
  box-shadow: 0 2px 6px rgba(0,0,0,.15);
  min-height: 34px;
}
.gbg-preset-btn:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 6px 18px rgba(0,0,0,.25);
}
.gbg-preset-btn:active { transform: scale(.97); }

/* Preview panel */
.gbg-preview {
  flex: 1;
  min-height: 320px;
  transition: background .15s;
  position: relative;
}
.gbg-preview::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  pointer-events: none;
  transition: background .15s;
}

/* Output strip */
.gbg-output-section {
  padding: 18px 24px;
  border-top: 1px solid #f1f5f9;
  background: var(--surface);
}

.gbg-output-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 8px;
}

.gbg-code {
  flex: 1;
  background: #0f172a;
  color: #e2e8f0;
  padding: 14px 18px;
  border-radius: 12px;
  font-size: .82rem;
  font-family: 'Courier New', Courier, monospace;
  word-break: break-all;
  white-space: pre-wrap;
  line-height: 1.65;
  min-height: 56px;
  border: 1px solid #1e293b;
}

.gbg-copy-btn {
  background: linear-gradient(135deg, #db2777 0%, #be185d 100%);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 12px 18px;
  font-family: inherit;
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
  flex-shrink: 0;
  transition: opacity .15s, transform .15s cubic-bezier(.34,1.56,.64,1), box-shadow .15s;
  box-shadow: 0 2px 8px rgba(219,39,119,.3);
  min-height: 44px;
}
.gbg-copy-btn:hover {
  opacity: .9;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(219,39,119,.4);
}
.gbg-copy-btn:active { transform: scale(.97); }
.gbg-copy-btn.copied {
  background: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
  box-shadow: 0 2px 8px rgba(22,163,74,.3);
}

@media (max-width: 760px) {
  .gbg-layout { flex-direction: column; min-height: auto; }
  .gbg-left { border-right: none; border-bottom: 1px solid #f1f5f9; max-height: none; background: var(--surface); }
  .gbg-preview { min-height: 240px; }
}
@media (max-width: 480px) {
  .gbg-left { padding: 20px 16px; }
  .gbg-output-section { padding: 16px; }
  .gbg-type-opt span { padding: 8px 15px; }
}