/* ============================================
   AETERNA — AI Imagine Tool Styles
   ============================================ */

/* Hero */
.imagine-hero {
  padding: var(--space-8) 0 var(--space-12);
  text-align: center;
}

.imagine-hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  line-height: 1.15;
  margin-bottom: var(--space-4);
}

.imagine-hero__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* Input Form */
.imagine-input {
  padding-bottom: var(--space-12);
}

.imagine-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: var(--space-8);
}

.imagine-form__label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.imagine-form__textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: var(--text-lg);
  line-height: 1.6;
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: var(--color-bg);
  color: var(--color-text);
  resize: vertical;
  min-height: 100px;
  transition: border-color var(--transition-interactive);
}

.imagine-form__textarea::placeholder {
  color: var(--color-text-faint);
  font-style: italic;
}

.imagine-form__textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* Prompt Chips */
.imagine-form__prompts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
  align-items: center;
}

.imagine-form__prompts-label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-right: var(--space-1);
}

.imagine-prompt-chip {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  transition: all var(--transition-interactive);
  white-space: nowrap;
}

.imagine-prompt-chip:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Options Row */
.imagine-form__options {
  display: flex;
  align-items: end;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.imagine-form__option {
  flex: 0 0 auto;
}

.imagine-form__option-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}

.imagine-form__select {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: var(--color-bg);
  color: var(--color-text);
  cursor: pointer;
  transition: border-color var(--transition-interactive);
}

.imagine-form__select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.imagine-form__generate {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-8);
  background: var(--color-primary);
  color: #FAFAF8;
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.imagine-form__generate:hover {
  background: var(--color-primary-hover);
  color: #FAFAF8;
}

.imagine-form__generate svg {
  width: 18px;
  height: 18px;
}

.imagine-form__generate.generating {
  opacity: 0.7;
  pointer-events: none;
}

.imagine-form__generate.generating svg {
  animation: spin 1s linear infinite;
}

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

/* Results */
.imagine-results {
  padding: var(--space-4) 0 clamp(var(--space-12), 4vw, var(--space-20));
}

.imagine-results__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  text-align: center;
  margin-bottom: var(--space-2);
}

.imagine-results__subtitle {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-10);
}

/* Loading */
.imagine-loading__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.imagine-loading__card {
  aspect-ratio: 1;
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

.imagine-shimmer {
  width: 100%;
  height: 100%;
  background: linear-gradient(
    110deg,
    var(--color-surface) 25%,
    var(--color-surface-alt) 37%,
    var(--color-surface) 63%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

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

.imagine-loading__text {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.imagine-loading__dots {
  display: inline-block;
  animation: dots 1.5s steps(4, end) infinite;
  width: 24px;
  text-align: left;
}

@keyframes dots {
  0% { content: ''; }
  25% { content: '.'; }
  50% { content: '..'; }
  75% { content: '...'; }
}

/* Results Grid */
.imagine-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

.imagine-card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--color-bg);
  opacity: 0;
  transform: translateY(20px);
  animation: imagine-reveal 0.6s var(--ease-out) forwards;
}

.imagine-card:nth-child(1) { animation-delay: 0s; }
.imagine-card:nth-child(2) { animation-delay: 0.15s; }
.imagine-card:nth-child(3) { animation-delay: 0.3s; }
.imagine-card:nth-child(4) { animation-delay: 0.45s; }

@keyframes imagine-reveal {
  to { opacity: 1; transform: translateY(0); }
}

.imagine-card__art {
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
}

.imagine-card__actions {
  padding: var(--space-4);
  display: flex;
  gap: var(--space-2);
}

.imagine-card__action {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  color: var(--color-text-muted);
  transition: all var(--transition-interactive);
  text-align: center;
}

.imagine-card__action:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.imagine-card__action--primary {
  background: var(--color-primary);
  color: #FAFAF8;
  border-color: var(--color-primary);
}

.imagine-card__action--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #FAFAF8;
}

/* CSS Abstract Art */
.concept-art {
  width: 100%;
  height: 100%;
  position: relative;
}

.concept-art--1 {
  background: linear-gradient(135deg, #2A4A6B 0%, #4A8BA8 30%, #7BC8D8 60%, #D4E8F0 100%);
}
.concept-art--1::before {
  content: '';
  position: absolute;
  width: 45%;
  height: 70%;
  bottom: 10%;
  left: 27.5%;
  border-radius: 50% 50% 10% 10% / 60% 60% 40% 40%;
  background: linear-gradient(170deg, rgba(255,255,255,0.3) 0%, rgba(120,180,200,0.5) 50%, rgba(60,100,140,0.7) 100%);
  box-shadow: inset 5px 5px 20px rgba(255,255,255,0.2), 0 10px 30px rgba(0,0,0,0.15);
}
.concept-art--1::after {
  content: '';
  position: absolute;
  width: 20%;
  height: 20%;
  top: 15%;
  right: 20%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.4), transparent);
  filter: blur(10px);
}

.concept-art--2 {
  background: linear-gradient(160deg, #3A2818 0%, #5A4028 30%, #8A6A48 60%, #C4A87C 100%);
}
.concept-art--2::before {
  content: '';
  position: absolute;
  width: 50%;
  height: 65%;
  bottom: 12%;
  left: 25%;
  border-radius: 30% 70% 60% 40% / 50% 30% 70% 50%;
  background: linear-gradient(145deg, #C4A87C 0%, #8B7355 50%, #5C4A35 100%);
  box-shadow: inset 3px 3px 12px rgba(196,168,124,0.4), inset -5px -5px 15px rgba(0,0,0,0.2);
}
.concept-art--2::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(175deg, transparent 0px, transparent 12px, rgba(255,255,255,0.03) 12px, rgba(255,255,255,0.03) 14px);
}

.concept-art--3 {
  background: linear-gradient(145deg, #F5F0E8 0%, #E8DED0 40%, #D4C4B0 100%);
}
.concept-art--3::before {
  content: '';
  position: absolute;
  width: 40%;
  height: 55%;
  bottom: 15%;
  left: 30%;
  border-radius: 50%;
  background: linear-gradient(145deg, #FFFFFF 0%, #F0EDE8 50%, #E0DCD4 100%);
  box-shadow: inset -10px -10px 25px rgba(0,0,0,0.06), inset 8px 8px 20px rgba(255,255,255,0.8), 0 15px 30px rgba(0,0,0,0.04);
}
.concept-art--3::after {
  content: '';
  position: absolute;
  width: 15%;
  height: 15%;
  top: 15%;
  left: 40%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,168,124,0.3), transparent);
  filter: blur(8px);
}

.concept-art--4 {
  background: linear-gradient(170deg, #1A2A1A 0%, #2A4A2A 30%, #4A7A4A 60%, #8AB88A 100%);
}
.concept-art--4::before {
  content: '';
  position: absolute;
  width: 45%;
  height: 60%;
  bottom: 15%;
  left: 27.5%;
  border-radius: 48% 52% 55% 45% / 50% 48% 52% 50%;
  background: linear-gradient(160deg, #6B5038 0%, #8B6E4E 50%, #A08060 100%);
  box-shadow: inset 3px 3px 10px rgba(139,110,78,0.3), 0 10px 20px rgba(0,0,0,0.2);
}
.concept-art--4::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 30% 20% at 25% 35%, rgba(74,122,74,0.3), transparent),
    radial-gradient(ellipse 20% 30% at 75% 55%, rgba(74,122,74,0.2), transparent);
}

/* Info */
.imagine-info {
  padding: var(--space-4) 0 clamp(var(--space-12), 4vw, var(--space-20));
}

.imagine-info__card {
  display: flex;
  gap: var(--space-6);
  padding: var(--space-8);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.imagine-info__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.imagine-info__icon svg {
  width: 24px;
  height: 24px;
}

.imagine-info__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  margin-bottom: var(--space-2);
}

.imagine-info__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-3);
}

.imagine-info__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-primary);
}

/* Responsive */
@media (max-width: 768px) {
  .imagine-form__options {
    flex-wrap: wrap;
  }

  .imagine-form__generate {
    margin-left: 0;
    width: 100%;
    justify-content: center;
  }

  .imagine-grid,
  .imagine-loading__grid {
    grid-template-columns: 1fr;
  }

  .imagine-info__card {
    flex-direction: column;
  }
}