/* PriceKaki Dashboard Styles */
/* Design language: Dark theme, orange accents, Space Grotesk + DM Sans */

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

:root {
  --orange: #FF6B35;
  --orange-light: #FF8C5A;
  --orange-dim: rgba(255, 107, 53, 0.15);
  --green: #22C55E;
  --green-dim: rgba(34, 197, 94, 0.15);
  --red: #EF4444;
  --red-dim: rgba(239, 68, 68, 0.15);
  --dark: #0D0D0D;
  --dark-soft: #1A1A1A;
  --dark-card: #161616;
  --border: #2a2a2a;
  --border-hover: #3a3a3a;
  --cream: #FFF8F0;
  --gray: #888;
  --gray-light: #aaa;
  --white: #FFFFFF;
  --radius: 12px;
  --radius-sm: 8px;
}

body {
  font-family: 'DM Sans', sans-serif;
  background: var(--dark);
  color: var(--white);
  overflow-x: hidden;
  min-height: 100vh;
}

h1, h2, h3, h4 {
  font-family: 'Space Grotesk', sans-serif;
}

a { color: var(--orange); text-decoration: none; }
a:hover { color: var(--orange-light); }

/* ===== NAV ===== */
.app-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 48px;
  max-width: 1200px;
  margin: 0 auto;
  border-bottom: 1px solid var(--border);
}

.app-nav .logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--orange);
  letter-spacing: -0.5px;
}
.app-nav .logo span { color: var(--white); }

.app-nav .nav-links {
  display: flex;
  gap: 24px;
  align-items: center;
}

.app-nav .nav-links a {
  font-size: 0.85rem;
  color: var(--gray);
  transition: color 0.2s;
}
.app-nav .nav-links a:hover { color: var(--white); }
.app-nav .nav-links a.active { color: var(--orange); }

/* ===== MAIN CONTAINER ===== */
.app-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 48px;
}

/* ===== TRACK INPUT ===== */
.track-section {
  margin-bottom: 48px;
}

.track-section h2 {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.track-input-row {
  display: flex;
  gap: 12px;
  max-width: 700px;
}

.track-input {
  flex: 1;
  background: var(--dark-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-size: 0.95rem;
  color: var(--white);
  font-family: 'DM Sans', sans-serif;
  transition: border-color 0.2s;
  outline: none;
}

.track-input:focus {
  border-color: var(--orange);
}

.track-input::placeholder {
  color: #555;
}

.track-btn {
  background: var(--orange);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 14px 32px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.track-btn:hover {
  background: var(--orange-light);
  transform: translateY(-1px);
}

.track-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.track-error {
  color: var(--red);
  font-size: 0.85rem;
  margin-top: 10px;
  display: none;
}

.track-error.show { display: block; }

.track-error.upgrade {
  color: var(--orange);
}

/* ===== STATS BAR ===== */
.stats-bar {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  padding: 20px 24px;
  background: var(--dark-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--orange);
}

.stat-label {
  font-size: 0.75rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.section-header h3 {
  font-size: 1.2rem;
  font-weight: 600;
}

.section-header .tag {
  font-size: 0.75rem;
  color: var(--gray);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 100px;
}

/* ===== PRODUCT GRID ===== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 16px;
  margin-bottom: 48px;
}

.product-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.product-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.product-card.selected {
  border-color: var(--orange);
  box-shadow: 0 0 0 1px var(--orange);
}

.product-header {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
}

.product-image {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--dark-soft);
  object-fit: cover;
  flex-shrink: 0;
}

.product-image-placeholder {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-sm);
  background: var(--dark-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.product-info {
  flex: 1;
  min-width: 0;
}

.product-name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.3;
  margin-bottom: 4px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-region {
  font-size: 0.75rem;
  color: var(--gray);
}

.product-prices {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 12px;
}

.current-price {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
}

.current-price.is-low {
  color: var(--orange);
}

.price-change {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 6px;
}

.price-change.down {
  color: var(--green);
  background: var(--green-dim);
}

.price-change.up {
  color: var(--red);
  background: var(--red-dim);
}

.price-change.same {
  color: var(--gray);
  background: rgba(136, 136, 136, 0.1);
}

.product-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--gray);
  padding-top: 12px;
  border-top: 1px solid var(--border);
}

.product-actions {
  position: absolute;
  top: 12px;
  right: 12px;
}

.remove-btn {
  background: none;
  border: none;
  color: #444;
  cursor: pointer;
  font-size: 1.1rem;
  padding: 4px;
  border-radius: 4px;
  transition: all 0.2s;
}

.remove-btn:hover {
  color: var(--red);
  background: var(--red-dim);
}

/* ===== UPGRADE CARD ===== */
.upgrade-card {
  background: linear-gradient(135deg, var(--dark-soft), #1f1510);
  border: 1px dashed var(--orange);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}

.upgrade-card:hover {
  border-style: solid;
  transform: translateY(-2px);
}

.upgrade-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.upgrade-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.upgrade-card p {
  font-size: 0.8rem;
  color: var(--gray);
}

/* ===== CHART SECTION ===== */
.chart-section {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 48px;
  display: none;
}

.chart-section.show { display: block; }

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 24px;
}

.chart-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.chart-subtitle {
  font-size: 0.85rem;
  color: var(--gray);
}

.chart-stats {
  display: flex;
  gap: 24px;
}

.chart-stat {
  text-align: right;
}

.chart-stat-label {
  font-size: 0.7rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chart-stat-value {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
}

.chart-stat-value.low { color: var(--green); }
.chart-stat-value.high { color: var(--red); }
.chart-stat-value.current { color: var(--orange); }

.chart-wrapper {
  position: relative;
  height: 300px;
  margin-bottom: 16px;
}

.chart-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.chart-period-btns {
  display: flex;
  gap: 8px;
}

.period-btn {
  background: var(--dark-soft);
  border: 1px solid var(--border);
  color: var(--gray);
  font-family: 'DM Sans', sans-serif;
  font-size: 0.8rem;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}

.period-btn:hover { border-color: var(--border-hover); color: var(--white); }
.period-btn.active { border-color: var(--orange); color: var(--orange); background: var(--orange-dim); }

.shopee-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--orange);
  padding: 8px 16px;
  border: 1px solid var(--orange);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.shopee-link:hover {
  background: var(--orange-dim);
}

/* ===== TELEGRAM BANNER ===== */
.telegram-banner {
  background: linear-gradient(135deg, #1a2332, #1a1a2e);
  border: 1px solid #2a3a4a;
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 48px;
}

.telegram-info h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.telegram-info p {
  font-size: 0.85rem;
  color: var(--gray);
}

.telegram-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #2AABEE;
  color: var(--white);
  border: none;
  border-radius: var(--radius-sm);
  padding: 12px 24px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}

.telegram-btn:hover {
  background: #1E9AD6;
  transform: translateY(-1px);
  color: var(--white);
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--gray);
}

.empty-state .icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 1.3rem;
  color: var(--white);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.9rem;
  max-width: 400px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== FEATURED SECTION ===== */
.featured-section {
  margin-bottom: 48px;
}

.featured-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--gray);
  margin-bottom: 16px;
}

/* ===== LOADING / TOAST ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid transparent;
  border-top-color: var(--white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--dark-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px 20px;
  font-size: 0.9rem;
  color: var(--white);
  z-index: 1000;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success { border-color: var(--green); }
.toast.error { border-color: var(--red); }

/* ===== FOOTER ===== */
.app-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 48px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #444;
}

.app-footer strong { color: var(--orange); }

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .app-nav { padding: 16px 20px; }
  .app-nav .nav-links { gap: 16px; }
  .app-container { padding: 24px 20px; }

  .track-input-row { flex-direction: column; }
  .track-btn { width: 100%; }

  .stats-bar { flex-wrap: wrap; gap: 20px; padding: 16px; }

  .products-grid { grid-template-columns: 1fr; }

  .chart-header { flex-direction: column; gap: 16px; }
  .chart-stats { gap: 16px; }
  .chart-stat { text-align: left; }
  .chart-wrapper { height: 220px; }
  .chart-actions { flex-direction: column; gap: 12px; }

  .telegram-banner {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .app-footer {
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .track-section h2 { font-size: 1.3rem; }
  .current-price { font-size: 1.2rem; }
  .chart-wrapper { height: 180px; }
}