/* AI Instagram Generator - Modern SaaS Creator UI */
:root {
  --ai-ig-primary: #7c3aed;
  --ai-ig-primary-hover: #6d28d9;
  --ai-ig-primary-light: #f5f3ff;
  --ai-ig-primary-border: #ddd6fe;
  --ai-ig-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
  --ai-ig-gradient-subtle: linear-gradient(135deg, rgba(99, 102, 241, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
  --ai-ig-bg: #ffffff;
  --ai-ig-surface: #f8fafc;
  --ai-ig-card-bg: #ffffff;
  --ai-ig-border: #e2e8f0;
  --ai-ig-border-focus: #8b5cf6;
  --ai-ig-text: #0f172a;
  --ai-ig-text-muted: #64748b;
  --ai-ig-text-light: #94a3b8;
  --ai-ig-success: #10b981;
  --ai-ig-success-bg: #ecfdf5;
  --ai-ig-error: #ef4444;
  --ai-ig-error-bg: #fef2f2;
  --ai-ig-radius: 14px;
  --ai-ig-radius-sm: 8px;
  --ai-ig-shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.02);
  --ai-ig-shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.04);
  --ai-ig-shadow-lg: 0 10px 30px -5px rgba(124, 58, 237, 0.12), 0 4px 10px -2px rgba(15, 23, 42, 0.04);
  --ai-ig-transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

.ai-ig-app-wrapper {
  max-width: 1200px;
  margin: 0 auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  color: var(--ai-ig-text);
  box-sizing: border-box;
  padding: 10px 0;
}

.ai-ig-app-wrapper *,
.ai-ig-app-wrapper *::before,
.ai-ig-app-wrapper *::after {
  box-sizing: inherit;
}

/* Header */
.ai-ig-header {
  text-align: center;
  margin-bottom: 28px;
  padding: 0 16px;
}

.ai-ig-header-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.ai-ig-spark {
  color: #8b5cf6;
  font-size: 24px;
  line-height: 1;
  animation: ai-ig-spin 6s linear infinite;
  display: inline-block;
}

@keyframes ai-ig-spin {
  0% { transform: rotate(0deg) scale(1); }
  50% { transform: rotate(180deg) scale(1.15); }
  100% { transform: rotate(360deg) scale(1); }
}

.ai-ig-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0;
  background: var(--ai-ig-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.2;
}

.ai-ig-gemini-badge {
  display: inline-flex;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--ai-ig-gradient-subtle);
  color: var(--ai-ig-primary);
  border: 1px solid var(--ai-ig-primary-border);
}

.ai-ig-subtitle {
  color: var(--ai-ig-text-muted);
  font-size: 15px;
  margin: 0;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.5;
}

/* Tabs */
.ai-ig-tabs {
  display: flex;
  background: var(--ai-ig-surface);
  padding: 6px;
  border-radius: 16px;
  border: 1px solid var(--ai-ig-border);
  max-width: 480px;
  margin: 0 auto 30px auto;
  box-shadow: var(--ai-ig-shadow-sm);
  gap: 6px;
}

.ai-ig-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 18px;
  border: none;
  background: transparent;
  color: var(--ai-ig-text-muted);
  font-size: 14px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--ai-ig-transition);
}

.ai-ig-tab:hover {
  color: var(--ai-ig-text);
  background: rgba(255, 255, 255, 0.6);
}

.ai-ig-tab.active {
  background: var(--ai-ig-card-bg);
  color: var(--ai-ig-primary);
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.12), 0 1px 3px rgba(0, 0, 0, 0.05);
}

.ai-ig-tab-icon {
  font-size: 16px;
}

/* Two-column Container */
.ai-ig-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  align-items: start;
}

/* Left Panel: Form */
.ai-ig-panel-form {
  background: var(--ai-ig-card-bg);
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius);
  padding: 28px;
  box-shadow: var(--ai-ig-shadow-md);
  transition: var(--ai-ig-transition);
}

.ai-ig-field-group {
  margin-bottom: 20px;
}

.ai-ig-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.ai-ig-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--ai-ig-text);
  letter-spacing: -0.01em;
}

.ai-ig-required {
  color: var(--ai-ig-error);
}

.ai-ig-char-counter {
  font-size: 12px;
  color: var(--ai-ig-text-light);
  font-variant-numeric: tabular-nums;
}

.ai-ig-textarea {
  width: 100%;
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius-sm);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ai-ig-text);
  background: #ffffff;
  resize: vertical;
  min-height: 105px;
  transition: var(--ai-ig-transition);
  font-family: inherit;
}

.ai-ig-textarea:focus,
.ai-ig-input:focus,
.ai-ig-select:focus {
  outline: none;
  border-color: var(--ai-ig-border-focus);
  box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
}

.ai-ig-input {
  width: 100%;
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius-sm);
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ai-ig-text);
  background: #ffffff;
  transition: var(--ai-ig-transition);
  font-family: inherit;
}

.ai-ig-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.ai-ig-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.ai-ig-select-wrap {
  position: relative;
}

.ai-ig-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius-sm);
  padding: 10px 32px 10px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--ai-ig-text);
  background: #ffffff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E") no-repeat calc(100% - 12px) center;
  cursor: pointer;
  transition: var(--ai-ig-transition);
}

/* Toggle Switches */
.ai-ig-toggles-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  padding: 14px 16px;
  background: var(--ai-ig-surface);
  border-radius: var(--ai-ig-radius-sm);
  border: 1px solid var(--ai-ig-border);
  margin-bottom: 24px;
}

.ai-ig-toggle-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}

.ai-ig-toggle-item input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.ai-ig-toggle-switch {
  width: 36px;
  height: 20px;
  background-color: #cbd5e1;
  border-radius: 20px;
  position: relative;
  transition: var(--ai-ig-transition);
}

.ai-ig-toggle-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background-color: #ffffff;
  border-radius: 50%;
  transition: var(--ai-ig-transition);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.ai-ig-toggle-item input:checked + .ai-ig-toggle-switch {
  background: var(--ai-ig-primary);
}

.ai-ig-toggle-item input:checked + .ai-ig-toggle-switch::after {
  transform: translateX(16px);
}

.ai-ig-toggle-text {
  font-size: 13px;
  font-weight: 500;
  color: var(--ai-ig-text);
}

/* Buttons */
.ai-ig-action-bar {
  display: flex;
  gap: 12px;
  align-items: center;
}

.ai-ig-submit-btn {
  flex: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  background: var(--ai-ig-gradient);
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(124, 58, 237, 0.35);
  transition: var(--ai-ig-transition);
}

.ai-ig-submit-btn:hover {
  opacity: 0.95;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(124, 58, 237, 0.45);
}

.ai-ig-submit-btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

.ai-ig-btn-secondary {
  padding: 14px 20px;
  border: 1px solid var(--ai-ig-border);
  background: #ffffff;
  color: var(--ai-ig-text-muted);
  font-size: 13px;
  font-weight: 600;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--ai-ig-transition);
}

.ai-ig-btn-secondary:hover {
  background: var(--ai-ig-surface);
  color: var(--ai-ig-text);
  border-color: #cbd5e1;
}

/* Right Panel: Output & States */
.ai-ig-panel-result {
  background: var(--ai-ig-card-bg);
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius);
  padding: 24px;
  box-shadow: var(--ai-ig-shadow-md);
  min-height: 480px;
  display: flex;
  flex-direction: column;
}

/* Empty State */
.ai-ig-state-empty {
  margin: auto;
  text-align: center;
  padding: 40px 20px;
  max-width: 360px;
}

.ai-ig-empty-visual {
  width: 72px;
  height: 72px;
  background: var(--ai-ig-gradient-subtle);
  border: 1px solid var(--ai-ig-primary-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px auto;
}

.ai-ig-empty-icon {
  font-size: 32px;
}

.ai-ig-empty-title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--ai-ig-text);
}

.ai-ig-empty-desc {
  font-size: 13px;
  line-height: 1.6;
  color: var(--ai-ig-text-muted);
  margin: 0;
}

/* Loading State */
.ai-ig-state-loading {
  margin: auto;
  text-align: center;
  padding: 40px 20px;
}

.ai-ig-pulse-orb {
  width: 68px;
  height: 68px;
  margin: 0 auto 20px auto;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-ig-pulse-orb::before {
  content: "";
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--ai-ig-gradient);
  opacity: 0.25;
  animation: ai-ig-pulse 1.8s ease-out infinite;
}

.ai-ig-orb-inner {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--ai-ig-gradient);
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.6);
}

@keyframes ai-ig-pulse {
  0% { transform: scale(0.6); opacity: 0.8; }
  100% { transform: scale(1.6); opacity: 0; }
}

.ai-ig-loading-title {
  font-size: 17px;
  font-weight: 700;
  margin: 0 0 6px 0;
  color: var(--ai-ig-text);
}

.ai-ig-loading-sub {
  font-size: 13px;
  color: var(--ai-ig-text-muted);
  margin: 0 0 20px 0;
}

.ai-ig-loading-bars {
  display: flex;
  justify-content: center;
  gap: 6px;
}

.ai-ig-bar {
  width: 24px;
  height: 4px;
  background: #e2e8f0;
  border-radius: 4px;
  overflow: hidden;
  position: relative;
}

.ai-ig-bar::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--ai-ig-primary);
  animation: ai-ig-bar-slide 1.4s ease-in-out infinite;
}

.ai-ig-bar:nth-child(2)::after { animation-delay: 0.2s; }
.ai-ig-bar:nth-child(3)::after { animation-delay: 0.4s; }

@keyframes ai-ig-bar-slide {
  0% { transform: translateX(-100%); }
  50% { transform: translateX(0); }
  100% { transform: translateX(100%); }
}

/* Spinner icon inside button */
.ai-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: ai-ig-spin 0.8s linear infinite;
}

.ai-ig-submit-btn.is-loading .ai-spinner {
  display: inline-block;
}

/* Error Banner */
.ai-ig-alert-error {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--ai-ig-error-bg);
  border: 1px solid #fecaca;
  color: #991b1b;
  padding: 12px 16px;
  border-radius: var(--ai-ig-radius-sm);
  margin-bottom: 18px;
  font-size: 13px;
  line-height: 1.4;
}

.ai-ig-alert-icon {
  font-size: 16px;
  flex-shrink: 0;
}

/* Output Toolbar */
.ai-ig-output-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--ai-ig-border);
  flex-wrap: wrap;
  gap: 10px;
}

.ai-ig-output-meta {
  font-size: 13px;
  font-weight: 700;
  color: var(--ai-ig-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.ai-ig-toolbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ai-ig-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--ai-ig-surface);
  border: 1px solid var(--ai-ig-border);
  color: var(--ai-ig-text-muted);
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--ai-ig-transition);
}

.ai-ig-tool-btn:hover {
  color: var(--ai-ig-text);
  background: #ffffff;
  border-color: #cbd5e1;
}

.ai-ig-tool-btn-danger:hover {
  color: var(--ai-ig-error);
  background: var(--ai-ig-error-bg);
  border-color: #fecaca;
}

/* Result Cards Stack */
.ai-ig-cards-stack {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-ig-result-card {
  background: #ffffff;
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius-sm);
  padding: 18px;
  transition: var(--ai-ig-transition);
  position: relative;
  box-shadow: var(--ai-ig-shadow-sm);
}

.ai-ig-result-card:hover {
  border-color: #cbd5e1;
  box-shadow: var(--ai-ig-shadow-md);
}

.ai-ig-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.ai-ig-card-badge {
  font-size: 11px;
  font-weight: 700;
  color: var(--ai-ig-primary);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.ai-ig-card-content {
  font-size: 14px;
  line-height: 1.65;
  color: var(--ai-ig-text);
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 14px;
}

.ai-ig-copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: #ffffff;
  border: 1px solid var(--ai-ig-border);
  color: var(--ai-ig-text);
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: var(--ai-ig-transition);
}

.ai-ig-copy-btn:hover {
  background: var(--ai-ig-primary-light);
  border-color: var(--ai-ig-primary-border);
  color: var(--ai-ig-primary);
}

.ai-ig-copy-btn.is-copied {
  background: var(--ai-ig-success-bg);
  border-color: #a7f3d0;
  color: var(--ai-ig-success);
}

/* Hashtag Grid Output */
.ai-ig-hashtag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.ai-ig-hashtag-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 12px;
  background: var(--ai-ig-surface);
  border: 1px solid var(--ai-ig-border);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ai-ig-primary);
  transition: var(--ai-ig-transition);
  cursor: pointer;
  user-select: none;
}

.ai-ig-hashtag-tag:hover {
  background: var(--ai-ig-primary-light);
  border-color: var(--ai-ig-primary-border);
  transform: translateY(-1px);
}

.ai-ig-hashtag-raw {
  background: var(--ai-ig-surface);
  border: 1px solid var(--ai-ig-border);
  border-radius: var(--ai-ig-radius-sm);
  padding: 14px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--ai-ig-text-muted);
  font-family: monospace;
  word-break: break-all;
  margin-bottom: 16px;
  max-height: 150px;
  overflow-y: auto;
}

/* Responsive Breakpoints */
@media (max-width: 960px) {
  .ai-ig-container {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .ai-ig-panel-result {
    min-height: 380px;
  }
}

@media (max-width: 600px) {
  .ai-ig-panel-form,
  .ai-ig-panel-result {
    padding: 18px;
    border-radius: 12px;
  }
  .ai-ig-grid-2,
  .ai-ig-grid-3 {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .ai-ig-tabs {
    border-radius: 12px;
    padding: 4px;
  }
  .ai-ig-tab {
    padding: 10px 12px;
    font-size: 13px;
  }
  .ai-ig-action-bar {
    flex-direction: column;
  }
  .ai-ig-submit-btn,
  .ai-ig-btn-secondary {
    width: 100%;
  }
}