/**
 * Image Zoom Out & Effects Studio — Frontend Styles
 *
 * Design system: soft shadows, gradient accents, smooth transitions.
 * Fully responsive from 320 px upward.
 *
 * @package ImageZoomEffectsStudio
 */

/* ── Reset / Base ─────────────────────────────────────────────────────────── */
.izes-studio *,
.izes-studio *::before,
.izes-studio *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* ── Custom properties ────────────────────────────────────────────────────── */
.izes-studio {
  --izes-primary:    #667eea;
  --izes-primary-2:  #764ba2;
  --izes-success:    #22c55e;
  --izes-success-2:  #16a34a;
  --izes-danger:     #ef4444;
  --izes-warning:    #f59e0b;
  --izes-surface:    #ffffff;
  --izes-bg:         #f8faff;
  --izes-border:     #e4e9f5;
  --izes-text:       #1e293b;
  --izes-text-muted: #64748b;
  --izes-radius:     12px;
  --izes-radius-lg:  20px;
  --izes-shadow:     0 4px 24px rgba(102, 126, 234, 0.10);
  --izes-shadow-lg:  0 8px 40px rgba(102, 126, 234, 0.18);
  --izes-transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);

  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 15px;
  line-height: 1.5;
  color: var(--izes-text);
  background: var(--izes-bg);
  border-radius: var(--izes-radius-lg);
  padding: 32px 28px;
  max-width: 1200px;
  margin: 0 auto;
  box-shadow: var(--izes-shadow-lg);
}

/* ── Header ───────────────────────────────────────────────────────────────── */
.izes-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.izes-header-icon {
  font-size: 36px;
  line-height: 1;
  flex-shrink: 0;
}

.izes-title {
  font-size: 1.6rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--izes-primary), var(--izes-primary-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin: 0;
}

.izes-subtitle {
  color: var(--izes-text-muted);
  font-size: 0.9rem;
  margin-top: 2px;
}

/* ── Notices ──────────────────────────────────────────────────────────────── */
.izes-notice {
  padding: 12px 16px;
  border-radius: var(--izes-radius);
  margin-bottom: 16px;
  font-size: 0.9rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: izesSlideIn var(--izes-transition) both;
}

.izes-notice--success {
  background: #dcfce7;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.izes-notice--error {
  background: #fee2e2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

@keyframes izesSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Upload Zone ──────────────────────────────────────────────────────────── */
.izes-upload-zone {
  border: 2px dashed var(--izes-border);
  border-radius: var(--izes-radius-lg);
  background: var(--izes-surface);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--izes-transition), background var(--izes-transition), transform var(--izes-transition);
}

.izes-upload-zone:hover,
.izes-upload-zone.izes-drag-over {
  border-color: var(--izes-primary);
  background: #f0f4ff;
  transform: translateY(-2px);
}

.izes-upload-zone.izes-drag-over {
  box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
}

.izes-upload-icon {
  font-size: 48px;
  margin-bottom: 12px;
  display: block;
}

.izes-upload-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--izes-text);
  margin-bottom: 6px;
}

.izes-upload-sub {
  color: var(--izes-text-muted);
  margin-bottom: 14px;
  font-size: 0.85rem;
}

.izes-upload-hint {
  color: var(--izes-text-muted);
  font-size: 0.8rem;
  margin-top: 14px;
}

/* ── Progress Bar ─────────────────────────────────────────────────────────── */
.izes-progress-wrap {
  margin-top: 20px;
  position: relative;
  background: #e9ecef;
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
}

.izes-progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--izes-primary), var(--izes-primary-2));
  border-radius: 999px;
  transition: width 0.4s ease;
  animation: izesShimmer 1.5s infinite;
  background-size: 200% 100%;
}

@keyframes izesShimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

.izes-progress-label {
  position: absolute;
  top: 14px;
  left: 0;
  right: 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--izes-text-muted);
}

/* ── Workspace ────────────────────────────────────────────────────────────── */
.izes-workspace {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 24px;
  align-items: start;
}

@media (max-width: 860px) {
  .izes-workspace {
    grid-template-columns: 1fr;
  }
}

/* ── Controls Panel ───────────────────────────────────────────────────────── */
.izes-controls-panel {
  background: var(--izes-surface);
  border-radius: var(--izes-radius-lg);
  padding: 24px;
  box-shadow: var(--izes-shadow);
  border: 1px solid var(--izes-border);
}

.izes-panel-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--izes-text);
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--izes-border);
}

/* ── Control Groups ───────────────────────────────────────────────────────── */
.izes-control-group {
  margin-bottom: 18px;
}

.izes-control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--izes-text);
  margin-bottom: 8px;
}

.izes-control-label-sm {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--izes-text-muted);
  margin-right: 8px;
}

.izes-slider-val {
  background: linear-gradient(135deg, var(--izes-primary), var(--izes-primary-2));
  color: #fff;
  font-size: 0.75rem;
  padding: 2px 8px;
  border-radius: 999px;
  font-weight: 600;
  min-width: 36px;
  text-align: center;
}

/* ── Sliders ──────────────────────────────────────────────────────────────── */
.izes-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--izes-border);
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  transition: background var(--izes-transition);
}

.izes-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--izes-primary), var(--izes-primary-2));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.45);
  transition: transform var(--izes-transition), box-shadow var(--izes-transition);
}

.izes-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.6);
}

.izes-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--izes-primary), var(--izes-primary-2));
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(102, 126, 234, 0.45);
}

/* ── Background Options ───────────────────────────────────────────────────── */
.izes-bg-options {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.izes-bg-opt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  font-size: 0.75rem;
  color: var(--izes-text-muted);
  padding: 6px 10px;
  border-radius: 10px;
  border: 2px solid var(--izes-border);
  background: var(--izes-surface);
  transition: all var(--izes-transition);
  font-weight: 500;
  user-select: none;
}

.izes-bg-opt:hover,
.izes-bg-opt--active {
  border-color: var(--izes-primary);
  color: var(--izes-primary);
  background: #f0f4ff;
}

.izes-bg-swatch {
  width: 32px;
  height: 20px;
  border-radius: 6px;
  border: 1px solid rgba(0,0,0,0.08);
  flex-shrink: 0;
}

.izes-bg-swatch--white      { background: #ffffff; }
.izes-bg-swatch--color      { background: linear-gradient(135deg, #f87171, #60a5fa, #4ade80); }
.izes-bg-swatch--blur       { background: linear-gradient(135deg, #c4b5fd, #93c5fd); filter: blur(2px); }
.izes-bg-swatch--reflection { background: linear-gradient(to bottom, #94a3b8, #e2e8f0); }
.izes-bg-swatch--duplicate  { background: repeating-linear-gradient(45deg, #c7d2fe 0, #c7d2fe 4px, #e0e7ff 4px, #e0e7ff 10px); }

/* ── Colour Input ─────────────────────────────────────────────────────────── */
.izes-color-input {
  width: 44px;
  height: 36px;
  padding: 2px;
  border: 2px solid var(--izes-border);
  border-radius: 8px;
  cursor: pointer;
  background: none;
  outline: none;
  transition: border-color var(--izes-transition);
}

.izes-color-input:hover,
.izes-color-input:focus {
  border-color: var(--izes-primary);
}

/* ── Rotate Buttons ───────────────────────────────────────────────────────── */
.izes-rotate-buttons {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

/* ── Border Color Row ─────────────────────────────────────────────────────── */
.izes-border-color-row {
  display: flex;
  align-items: center;
  margin-top: 10px;
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */
.izes-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 18px;
  border: none;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--izes-transition);
  outline: none;
  text-decoration: none;
  white-space: nowrap;
  font-family: inherit;
}

.izes-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.4);
}

.izes-btn--primary {
  background: linear-gradient(135deg, var(--izes-primary), var(--izes-primary-2));
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.izes-btn--primary:hover {
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.55);
  transform: translateY(-1px);
}

.izes-btn--success {
  background: linear-gradient(135deg, var(--izes-success), var(--izes-success-2));
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(34, 197, 94, 0.35);
}

.izes-btn--success:hover:not(:disabled) {
  box-shadow: 0 6px 20px rgba(34, 197, 94, 0.5);
  transform: translateY(-1px);
}

.izes-btn--success:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.izes-btn--ghost {
  background: transparent;
  color: var(--izes-text-muted);
  border: 2px solid var(--izes-border);
}

.izes-btn--ghost:hover {
  border-color: var(--izes-primary);
  color: var(--izes-primary);
  background: #f0f4ff;
}

.izes-btn--icon {
  padding: 7px 12px;
  font-size: 0.78rem;
  background: var(--izes-bg);
  color: var(--izes-text-muted);
  border: 2px solid var(--izes-border);
}

.izes-btn--icon:hover,
.izes-btn--icon.izes-active {
  border-color: var(--izes-primary);
  color: var(--izes-primary);
  background: #f0f4ff;
}

.izes-btn--full {
  width: 100%;
  justify-content: center;
}

.izes-btn-icon {
  font-style: normal;
}

/* ── Actions ──────────────────────────────────────────────────────────────── */
.izes-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 6px;
}

.izes-actions-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

/* ── Preview Panel ────────────────────────────────────────────────────────── */
.izes-preview-panel {
  background: var(--izes-surface);
  border-radius: var(--izes-radius-lg);
  padding: 24px;
  box-shadow: var(--izes-shadow);
  border: 1px solid var(--izes-border);
}

.izes-preview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 600px) {
  .izes-preview-grid {
    grid-template-columns: 1fr;
  }
}

.izes-preview-box {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.izes-preview-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--izes-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.izes-preview-img-wrap {
  background: repeating-conic-gradient(#e2e8f0 0% 25%, var(--izes-surface) 0% 50%) 0 0 / 20px 20px;
  border-radius: var(--izes-radius);
  border: 1px solid var(--izes-border);
  overflow: hidden;
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.izes-preview-img-wrap img {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  display: block;
  transition: opacity 0.3s ease;
}

.izes-preview-placeholder {
  text-align: center;
  color: var(--izes-text-muted);
  padding: 32px 16px;
}

.izes-preview-placeholder span {
  font-size: 40px;
  display: block;
  margin-bottom: 10px;
  opacity: 0.5;
}

.izes-preview-placeholder p {
  font-size: 0.85rem;
}

/* ── Link ─────────────────────────────────────────────────────────────────── */
.izes-link {
  color: var(--izes-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: opacity var(--izes-transition);
}

.izes-link:hover {
  opacity: 0.75;
  text-decoration: underline;
}

/* ── Loading overlay on result ────────────────────────────────────────────── */
.izes-preview-loading {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  color: var(--izes-primary);
  font-weight: 600;
  gap: 8px;
  border-radius: var(--izes-radius);
}

.izes-spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(102,126,234,0.25);
  border-top-color: var(--izes-primary);
  border-radius: 50%;
  animation: izesSpin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes izesSpin {
  to { transform: rotate(360deg); }
}

/* ── Utility ──────────────────────────────────────────────────────────────── */
[hidden] { display: none !important; }