/* ============================================================
   CSS - O tee mou Theme (Temu parody: Orange + Purple + Chaos)
   ============================================================ */

:root {
  --orange: #FF6B35;
  --orange-light: #FF8F5E;
  --orange-dark: #E55A2B;
  --purple: #7B2D8E;
  --purple-light: #9B4DBA;
  --purple-dark: #5C1F6E;
  --bg: #FFF8F0;
  --bg-card: #FFFFFF;
  --text: #2D1B3D;
  --text-light: #6B5B7B;
  --border: #FFD4B8;
  --shadow: rgba(123, 45, 142, 0.15);
  --success: #2ECC71;
  --gold: #FFD700;
  --danger: #E74C3C;
  --font: 'Fredoka', sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #1A1025;
  --bg-card: #2D1B3D;
  --text: #F0E6F6;
  --text-light: #B8A8C8;
  --border: #4A2D5E;
  --shadow: rgba(0, 0, 0, 0.3);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
  overflow-x: hidden;
}

::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--purple-light);
  border-radius: 4px;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: linear-gradient(135deg, var(--orange), var(--purple));
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 4px 20px var(--shadow);
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-decoration: none;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  transition: background var(--transition);
}

.header-btn:hover {
  background: rgba(255, 255, 255, 0.35);
}

.cart-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: var(--danger);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font);
}

.user-name-display {
  color: white;
  font-weight: 500;
  font-size: 0.9rem;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== Screens ===== */
.screen {
  display: none;
  animation: fadeIn 0.4s ease;
}

.screen.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== Setup / Login ===== */
.setup-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: linear-gradient(135deg, var(--orange-light), var(--purple-light));
}

.setup-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 40px 32px;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 20px 60px var(--shadow);
  text-align: center;
}

.setup-card h1 {
  font-size: 2.2rem;
  background: linear-gradient(135deg, var(--orange), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.setup-card .tagline {
  color: var(--text-light);
  margin-bottom: 24px;
  font-size: 0.95rem;
}

.form-group {
  margin-bottom: 16px;
  text-align: left;
}

.form-group label {
  display: block;
  font-weight: 500;
  margin-bottom: 4px;
  font-size: 0.85rem;
  color: var(--text-light);
}

.form-group input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.95rem;
  background: var(--bg);
  color: var(--text);
  transition: border-color var(--transition);
}

.form-group input:focus {
  outline: none;
  border-color: var(--purple);
}

.btn {
  padding: 12px 28px;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--orange), var(--purple));
  color: white;
  width: 100%;
  justify-content: center;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--shadow);
}

.btn-secondary {
  background: var(--bg);
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--purple);
}

.btn-small {
  padding: 8px 16px;
  font-size: 0.85rem;
}

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

.btn-danger:hover {
  opacity: 0.9;
}

.disclaimer {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 16px;
  padding: 10px;
  background: #FFF3CD;
  border-radius: var(--radius-sm);
  color: #856404;
}

[data-theme="dark"] .disclaimer {
  background: #3D2E00;
  color: #FFD700;
}

/* ===== Homepage ===== */
.homepage {
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
  text-align: center;
}

.homepage .logo-big {
  font-size: 4rem;
  margin-bottom: 8px;
}

.homepage h1 {
  font-size: 3rem;
  background: linear-gradient(135deg, var(--orange), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.homepage .tagline {
  font-size: 1.2rem;
  color: var(--text-light);
  margin-bottom: 32px;
}

.search-container {
  width: 100%;
  max-width: 600px;
  position: relative;
}

.search-bar {
  width: 100%;
  padding: 16px 20px;
  padding-right: 60px;
  border: 3px solid var(--border);
  border-radius: 50px;
  font-family: var(--font);
  font-size: 1.1rem;
  background: var(--bg-card);
  color: var(--text);
  transition: all var(--transition);
  box-shadow: 0 4px 20px var(--shadow);
}

.search-bar:focus {
  outline: none;
  border-color: var(--purple);
  box-shadow: 0 4px 30px rgba(123, 45, 142, 0.25);
}

.search-btn {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  background: linear-gradient(135deg, var(--orange), var(--purple));
  border: none;
  color: white;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  transition: transform var(--transition);
}

.search-btn:hover {
  transform: translateY(-50%) scale(1.05);
}

/* ===== Recent Discoveries ===== */
.recent-section {
  margin-top: 48px;
  width: 100%;
  max-width: 700px;
}

.recent-section h3 {
  font-size: 1rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.recent-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.recent-tag {
  background: var(--bg-card);
  border: 2px solid var(--border);
  border-radius: 50px;
  padding: 8px 16px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.recent-tag:hover {
  border-color: var(--purple);
  transform: translateY(-2px);
}

.recent-tag .rarity-badge {
  background: var(--gold);
  color: #333;
  border-radius: 50px;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 700;
}

/* ===== Results Grid ===== */
.results-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 20px;
}

.results-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.results-header h2 {
  font-size: 1.3rem;
}

.results-header .points-earned {
  background: var(--gold);
  color: #333;
  padding: 6px 16px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

/* ===== Product Card ===== */
.product-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 4px 20px var(--shadow);
  transition: all var(--transition);
  border: 2px solid transparent;
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px var(--shadow);
  border-color: var(--purple-light);
}

.product-card.rarity-100 {
  border-color: var(--gold);
  animation: glowPulse 2s infinite;
}

@keyframes glowPulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(255, 215, 0, 0.3);
  }
  50% {
    box-shadow: 0 0 25px rgba(255, 215, 0, 0.6);
  }
}

.product-image {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #E0D0E8, #FFD4B8);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

.product-image .missing-icon {
  font-size: 4rem;
  opacity: 0.5;
}

.product-image .crown {
  position: absolute;
  top: 8px;
  right: 8px;
  font-size: 2rem;
  animation: crownBounce 1.5s infinite;
}

@keyframes crownBounce {
  0%, 100% {
    transform: translateY(0) rotate(-5deg);
  }
  50% {
    transform: translateY(-5px) rotate(5deg);
  }
}

/* AI εικόνες προϊόντων (Pollinations) - async φόρτωση πάνω από το placeholder */
.product-image .product-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.45s ease;
  z-index: 1;
}

.product-image.has-img .product-img {
  opacity: 1;
}

.product-image.has-img .product-img-ph {
  opacity: 0;
  transition: opacity 0.2s ease;
}

.product-image .product-img-ph {
  position: relative;
  z-index: 0;
  animation: imgPulse 1.6s ease-in-out infinite;
}

@keyframes imgPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

.product-body {
  padding: 16px;
}

.product-name {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 12px;
  line-height: 1.4;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 8px;
}

.product-rarity {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: linear-gradient(135deg, var(--gold), #FFA500);
  color: #333;
  padding: 4px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 10px;
}

.product-stars {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.stars-filled {
  color: var(--gold);
}

.stars-empty {
  color: #DDD;
}

.product-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 12px;
}

.product-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.product-actions .btn {
  flex: 1;
  justify-content: center;
  font-size: 0.8rem;
  padding: 10px 12px;
  min-width: 0;
}

.btn-fav.active {
  background: #FFE0E0;
  color: var(--danger);
  border-color: var(--danger);
}

.btn-cart {
  background: var(--purple);
  color: white;
}

.btn-cart:hover {
  background: var(--purple-dark);
}

.btn-buy {
  background: var(--orange);
  color: white;
}

.btn-buy:hover {
  background: var(--orange-dark);
}

/* ===== Reviews ===== */
.reviews-section {
  margin-top: 16px;
  border-top: 2px solid var(--border);
  padding-top: 12px;
}

.reviews-section h4 {
  font-size: 0.9rem;
  margin-bottom: 8px;
  color: var(--text-light);
}

.review-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  margin-bottom: 8px;
  font-size: 0.8rem;
}

.review-item .review-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}

.review-item .review-user {
  font-weight: 600;
}

.review-item .review-date {
  font-size: 0.7rem;
  color: var(--text-light);
}

.review-item .review-text {
  color: var(--text-light);
  line-height: 1.3;
}

.review-form {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.review-form textarea {
  width: 100%;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.85rem;
  resize: vertical;
  min-height: 60px;
  background: var(--bg);
  color: var(--text);
}

.review-form textarea:focus {
  outline: none;
  border-color: var(--purple);
}

.star-selector {
  display: flex;
  gap: 4px;
  font-size: 1.3rem;
  cursor: pointer;
}

.star-selector span {
  cursor: pointer;
  transition: transform var(--transition);
}

.star-selector span:hover {
  transform: scale(1.2);
}

/* ===== Loading Spinner ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 200;
  backdrop-filter: blur(4px);
}

.loading-overlay.active {
  display: flex;
}

.spinner {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.spinner-icon {
  width: 60px;
  height: 60px;
  border: 5px solid var(--border);
  border-top-color: var(--purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

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

.spinner p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* ===== Modals ===== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 300;
  backdrop-filter: blur(4px);
  padding: 20px;
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--bg-card);
  border-radius: var(--radius);
  max-width: 500px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from {
    transform: scale(0.9);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  background: var(--bg-card);
  z-index: 1;
}

.modal-header h2 {
  font-size: 1.2rem;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--text-light);
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--danger);
}

.modal-body {
  padding: 20px 24px;
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 500;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  box-shadow: 0 8px 30px var(--shadow);
  border-left: 4px solid var(--purple);
  animation: toastIn 0.3s ease;
  max-width: 350px;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.toast.success {
  border-left-color: var(--success);
}

.toast.error {
  border-left-color: var(--danger);
}

.toast.warning {
  border-left-color: var(--gold);
}

@keyframes toastIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===== Confetti ===== */
.confetti-container {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  z-index: 400;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  width: 10px;
  height: 10px;
  top: -10px;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  to {
    transform: translateY(100vh) rotate(720deg);
    opacity: 0;
  }
}

/* ===== Badges ===== */
.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge-item {
  background: var(--bg);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  text-align: center;
  flex: 1;
  min-width: 100px;
  border: 2px solid var(--border);
  transition: all var(--transition);
}

.badge-item.locked {
  opacity: 0.4;
  filter: grayscale(1);
}

.badge-item.unlocked {
  border-color: var(--gold);
  background: linear-gradient(135deg, #FFF8E0, #FFF0C0);
}

[data-theme="dark"] .badge-item.unlocked {
  background: linear-gradient(135deg, #3D2E00, #5C4400);
}

.badge-item .badge-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 4px;
}

.badge-item .badge-name {
  font-size: 0.8rem;
  font-weight: 600;
}

.badge-item .badge-desc {
  font-size: 0.7rem;
  color: var(--text-light);
}

/* ===== Leaderboard ===== */
.leaderboard-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  background: var(--bg);
  transition: all var(--transition);
}

.leaderboard-item.current-user {
  background: linear-gradient(135deg, var(--orange-light), var(--purple-light));
  color: white;
}

.leaderboard-item .rank {
  font-size: 1.2rem;
  font-weight: 700;
  width: 30px;
  text-align: center;
}

.leaderboard-item .rank.gold {
  color: var(--gold);
}

.leaderboard-item .rank.silver {
  color: #C0C0C0;
}

.leaderboard-item .rank.bronze {
  color: #CD7F32;
}

.leaderboard-item .lb-name {
  flex: 1;
  font-weight: 500;
}

.leaderboard-item .lb-points {
  font-weight: 700;
  color: var(--purple);
}

.leaderboard-item.current-user .lb-points {
  color: white;
}

/* ===== Hall of Fame ===== */
.hall-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
}

.hall-item {
  background: linear-gradient(135deg, #FFF8E0, #FFE0B0);
  border-radius: var(--radius);
  padding: 20px;
  text-align: center;
  border: 2px solid var(--gold);
}

[data-theme="dark"] .hall-item {
  background: linear-gradient(135deg, #3D2E00, #5C4400);
}

.hall-item .trophy {
  font-size: 3rem;
}

.hall-item .hall-name {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 8px 0 4px;
}

.hall-item .hall-rarity {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ===== Purchase Animation ===== */
.purchase-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 600;
}

.purchase-overlay.active {
  display: flex;
}

.purchase-success {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 40px;
  text-align: center;
  max-width: 400px;
  animation: modalIn 0.5s ease;
}

.purchase-success .big-icon {
  font-size: 4rem;
  margin-bottom: 16px;
}

.purchase-success h2 {
  margin-bottom: 8px;
}

.purchase-success p {
  color: var(--text-light);
  margin-bottom: 20px;
}

/* ===== Cart Items ===== */
.cart-item {
  display: flex;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  align-items: center;
}

.cart-item:last-child {
  border-bottom: none;
}

.cart-item .cart-img {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #E0D0E8, #FFD4B8);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
  overflow: hidden;
}

.cart-item .cart-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.cart-item .cart-info {
  flex: 1;
}

.cart-item .cart-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.cart-item .cart-price {
  color: var(--orange);
  font-weight: 600;
}

.cart-item .cart-remove {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 1.2rem;
}

/* ===== Settings ===== */
.settings-group {
  margin-bottom: 20px;
}

.settings-group h3 {
  font-size: 1rem;
  margin-bottom: 10px;
  color: var(--text-light);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
  .header {
    padding: 10px 16px;
  }
  .header-logo {
    font-size: 1.2rem;
  }
  .homepage h1 {
    font-size: 2rem;
  }
  .homepage .logo-big {
    font-size: 3rem;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .modal {
    max-width: 100%;
    margin: 10px;
  }
  .product-actions .btn {
    font-size: 0.75rem;
    padding: 8px 10px;
  }
}

/* ===== Utility ===== */
.text-center {
  text-align: center;
}
.mt-8 {
  margin-top: 8px;
}
.mt-16 {
  margin-top: 16px;
}
.mb-8 {
  margin-bottom: 8px;
}
.mb-16 {
  margin-bottom: 16px;
}
.gap-8 {
  gap: 8px;
}
.flex {
  display: flex;
}
.flex-wrap {
  flex-wrap: wrap;
}
.items-center {
  align-items: center;
}
.justify-between {
  justify-content: space-between;
}