/* ===========================================
   Component Styles
   =========================================== */

/* ===========================================
   Hero Section
   =========================================== */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  z-index: -1;
}

.hero__pattern {
  position: absolute;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: var(--space-12);
  padding-bottom: var(--space-16);
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-display);
  font-weight: var(--font-bold);
  color: var(--color-white);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-4);
}

.hero__tagline {
  font-size: var(--text-lg);
  color: var(--color-gray-400);
  max-width: 400px;
  margin-bottom: var(--space-10);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  animation: bounce 2s infinite;
}

.hero__scroll svg {
  width: 24px;
  height: 24px;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-8px);
  }
  60% {
    transform: translateX(-50%) translateY(-4px);
  }
}

/* ===========================================
   Upload Component
   =========================================== */

.upload {
  width: 100%;
  max-width: 400px;
}

.upload__zone {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 2px dashed var(--color-gray-500);
  border-radius: var(--radius-xl);
  background: rgba(255, 255, 255, 0.05);
  cursor: pointer;
  transition: all var(--transition-base);
  overflow: hidden;
}

.upload__zone:hover,
.upload__zone:focus-visible {
  border-color: var(--color-secondary);
  background: rgba(var(--color-secondary-rgb), 0.1);
  transform: scale(1.02);
}

.upload__zone.drag-over {
  border-color: var(--color-secondary);
  border-style: solid;
  background: rgba(var(--color-secondary-rgb), 0.15);
  transform: scale(1.02);
}

.upload__empty {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.upload__icon {
  width: 48px;
  height: 48px;
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
}

.upload__text {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-white);
  margin-bottom: var(--space-1);
}

.upload__subtext {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
  margin-bottom: var(--space-4);
}

.upload__hint {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

.upload__preview {
  position: absolute;
  inset: 0;
}

.upload__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.upload__change {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.upload__change:hover {
  background: rgba(0, 0, 0, 0.85);
}

.upload__change svg {
  width: 16px;
  height: 16px;
}

.upload__remove {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  color: var(--color-white);
  border-radius: var(--radius-full);
  backdrop-filter: blur(8px);
  transition: all var(--transition-fast);
}

.upload__remove:hover {
  background: var(--color-error);
}

.upload__remove svg {
  width: 16px;
  height: 16px;
}

/* ===========================================
   Style Selection
   =========================================== */

.styles {
  background: var(--color-gray-50);
}

.styles__title {
  text-align: center;
  margin-bottom: var(--space-2);
}

.styles__subtitle {
  text-align: center;
  color: var(--color-gray-500);
  margin-bottom: var(--space-8);
}

.style-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  max-width: 600px;
  margin: 0 auto;
}

@media (min-width: 640px) {
  .style-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .style-grid {
    max-width: 800px;
    gap: var(--space-5);
  }
}

.style-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.style-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.style-card:active {
  transform: translateY(-2px) scale(0.98);
}

.style-card.selected {
  outline: 3px solid var(--color-secondary);
  outline-offset: 2px;
}

.style-card__image {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.style-card__placeholder {
  width: 80%;
  height: 80%;
  opacity: 0.9;
}

.style-card__content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-3);
  background: var(--gradient-overlay);
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.style-card__name {
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  color: var(--color-white);
}

.style-card__desc {
  font-size: var(--text-xs);
  color: var(--color-gray-300);
}

.style-card__check {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-secondary);
  border-radius: var(--radius-full);
  opacity: 0;
  transform: scale(0.5);
  transition: all var(--transition-base);
}

.style-card__check svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
}

.style-card.selected .style-card__check {
  opacity: 1;
  transform: scale(1);
}

/* ===========================================
   Generate Section
   =========================================== */

.generate {
  background: var(--color-white);
  text-align: center;
}

.generate__status {
  margin-bottom: var(--space-6);
}

.generate__requirements {
  display: flex;
  justify-content: center;
  gap: var(--space-8);
}

.requirement {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gray-400);
  font-size: var(--text-sm);
  transition: color var(--transition-fast);
}

.requirement.complete {
  color: var(--color-success);
}

.requirement__icon {
  width: 20px;
  height: 20px;
}

.btn-generate {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  width: 100%;
  max-width: 400px;
  padding: var(--space-4) var(--space-8);
  background: var(--gradient-gold);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-gold);
  transition: all var(--transition-base);
}

.btn-generate:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold-lg);
}

.btn-generate:active:not(:disabled) {
  transform: translateY(0);
}

.btn-generate:disabled {
  background: var(--color-gray-200);
  color: var(--color-gray-400);
  cursor: not-allowed;
  box-shadow: none;
}

.btn-generate__arrow {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.btn-generate:hover:not(:disabled) .btn-generate__arrow {
  transform: translateX(4px);
}

.btn-generate:disabled .btn-generate__arrow {
  display: none;
}

/* ===========================================
   Loading Overlay
   =========================================== */

.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(var(--color-primary-rgb), 0.97);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: var(--z-modal);
  backdrop-filter: blur(8px);
}

.loading__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-6);
}

.loading__preview {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-8);
  animation: pulse 2s ease-in-out infinite;
}

.loading__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(0.95);
  }
}

.loading__progress {
  position: relative;
  width: 120px;
  height: 120px;
  margin-bottom: var(--space-6);
}

.loading__ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.loading__ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 8;
}

.loading__ring-progress {
  fill: none;
  stroke: var(--color-secondary);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 339.292;
  stroke-dashoffset: 339.292;
  transition: stroke-dashoffset 0.5s ease;
}

.loading__percentage {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--text-h3);
  font-weight: var(--font-bold);
  color: var(--color-white);
}

.loading__message {
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--color-white);
  margin-bottom: var(--space-2);
}

.loading__submessage {
  font-size: var(--text-sm);
  color: var(--color-gray-400);
}

/* ===========================================
   Results Section
   =========================================== */

.results {
  background: var(--color-white);
}

.results__title {
  text-align: center;
  margin-bottom: var(--space-2);
}

.results__subtitle {
  text-align: center;
  color: var(--color-secondary);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-8);
}

/* Comparison Slider */
.comparison {
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

.comparison__container {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.comparison__before,
.comparison__after {
  position: absolute;
  inset: 0;
}

.comparison__before {
  z-index: 1;
}

.comparison__after {
  z-index: 0;
}

.comparison__before img,
.comparison__after img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.comparison__label {
  position: absolute;
  top: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: rgba(0, 0, 0, 0.6);
  color: var(--color-white);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-full);
  backdrop-filter: blur(4px);
}

.comparison__before .comparison__label {
  left: var(--space-4);
}

.comparison__after .comparison__label {
  right: var(--space-4);
}

.comparison__slider {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: var(--color-white);
  cursor: ew-resize;
  z-index: 2;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.3);
}

.comparison__handle {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
}

.comparison__handle svg {
  width: 20px;
  height: 20px;
  color: var(--color-gray-600);
}

/* Furniture Section */
.furniture {
  max-width: 600px;
  margin: 0 auto;
}

.furniture__title {
  font-size: var(--text-h3);
  margin-bottom: var(--space-2);
}

.furniture__subtitle {
  color: var(--color-gray-500);
  margin-bottom: var(--space-6);
}

.furniture-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .furniture-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.furniture-card {
  background: var(--color-gray-50);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  text-align: center;
  transition: all var(--transition-base);
}

.furniture-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.furniture-card__image {
  width: 100%;
  aspect-ratio: 1;
  background: var(--color-gray-100);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.furniture-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.furniture-card__image svg {
  width: 40%;
  height: 40%;
  color: var(--color-gray-300);
}

.furniture-card__name {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-800);
  margin-bottom: var(--space-1);
  display: block;
}

.furniture-card__price {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
}

/* Results Actions */
.results__actions {
  display: flex;
  justify-content: center;
  margin-top: var(--space-12);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  background: transparent;
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.btn-secondary svg {
  width: 20px;
  height: 20px;
}

/* ===========================================
   Footer
   =========================================== */

.footer {
  padding: var(--space-8) 0;
  background: var(--color-gray-50);
  text-align: center;
}

.footer__text {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-bottom: var(--space-1);
}

.footer__brand {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-gray-600);
}