:root {
  --bg: #0a0c10;
  --bg-card: rgba(22, 26, 36, 0.75);
  --bg-hover: rgba(32, 38, 52, 0.9);
  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.14);
  --text: #eef0f5;
  --text-muted: #8b93a7;
  --accent: #6c8cff;
  --accent-glow: rgba(108, 140, 255, 0.35);
  --accent-dim: #5577ee;
  --sell: #34d399;
  --sell-glow: rgba(52, 211, 153, 0.25);
  --buy: #fbbf24;
  --buy-glow: rgba(251, 191, 36, 0.25);
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur: 0.35s;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

.main,
.header,
.tabs,
.footer {
  animation: fadeIn 0.5s var(--ease-out) both;
}

/* Ambient background */
.bg-glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  animation: floatGlow 12s ease-in-out infinite alternate;
}

.bg-glow--buy {
  width: 420px;
  height: 420px;
  background: var(--buy-glow);
  top: 10%;
  left: -8%;
}

.bg-glow--sell {
  width: 480px;
  height: 480px;
  background: var(--sell-glow);
  bottom: 5%;
  right: -10%;
  animation-delay: -6s;
}

@keyframes floatGlow {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(30px, -20px) scale(1.08); }
}

.header,
.tabs,
.main,
.footer {
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  background: rgba(14, 17, 24, 0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
  animation: slideDown 0.6s var(--ease-out) both;
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.header-inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.logo-icon {
  font-size: 2rem;
  animation: bounceIcon 2.5s ease-in-out infinite;
}

@keyframes bounceIcon {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-4px); }
}

.logo h1 {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, #fff 30%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.server-picker {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.server-picker label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

select,
input[type="text"] {
  background: rgba(10, 12, 16, 0.6);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.65rem 0.9rem;
  border-radius: 10px;
  font-size: 0.92rem;
  font-family: inherit;
  min-width: 220px;
  outline: none;
  transition: border-color var(--dur), box-shadow var(--dur), transform var(--dur);
}

select:hover,
input[type="text"]:hover {
  border-color: var(--border-hover);
}

select:focus,
input[type="text"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

/* Tabs */
.tabs {
  padding: 0.85rem 1.5rem 0;
  animation: slideDown 0.6s var(--ease-out) 0.1s both;
}

.tabs-track {
  position: relative;
  display: inline-flex;
  gap: 0.35rem;
  background: rgba(14, 17, 24, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.3rem;
}

.tab {
  position: relative;
  z-index: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 0.55rem 1.25rem;
  border-radius: 9px;
  cursor: pointer;
  font-size: 0.88rem;
  font-family: inherit;
  font-weight: 500;
  transition: color var(--dur);
}

.tab:hover {
  color: var(--text);
}

.tab.active {
  color: #fff;
  font-weight: 600;
}

.tab-indicator {
  position: absolute;
  top: 0.3rem;
  left: 0.3rem;
  height: calc(100% - 0.6rem);
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border-radius: 9px;
  transition: transform 0.4s var(--ease-out), width 0.4s var(--ease-out);
  box-shadow: 0 4px 16px var(--accent-glow);
  pointer-events: none;
}

/* Main & panels */
.main {
  max-width: 100%;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  width: 100%;
  animation: fadeIn 0.7s var(--ease-out) 0.2s both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.panel {
  display: none;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.panel.active {
  display: flex;
}

.panel--entering {
  animation: panelIn 0.35s var(--ease-out) both;
}

.panel--leaving {
  animation: panelOut 0.18s ease both;
}

@keyframes panelIn {
  from { opacity: 0; transform: translateX(12px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes panelOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-8px); }
}

.panel-toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.meta {
  color: var(--text-muted);
  font-size: 0.88rem;
  transition: transform 0.3s var(--ease-out);
}

.meta--pulse {
  animation: metaPulse 0.6s var(--ease-out);
}

@keyframes metaPulse {
  0%   { transform: scale(1); color: var(--text-muted); }
  50%  { transform: scale(1.04); color: var(--accent); }
  100% { transform: scale(1); color: var(--text-muted); }
}

/* Buttons */
.btn {
  position: relative;
  border: none;
  padding: 0.65rem 1.35rem;
  border-radius: 10px;
  font-size: 0.88rem;
  font-family: inherit;
  cursor: pointer;
  font-weight: 600;
  overflow: hidden;
  transition: transform 0.2s var(--ease-spring), box-shadow var(--dur);
}

.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--dur);
}

.btn:hover::before {
  opacity: 1;
}

.btn:active {
  transform: scale(0.96);
}

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn.primary:hover {
  box-shadow: 0 6px 28px var(--accent-glow);
  transform: translateY(-1px);
}

.btn.primary:active {
  transform: translateY(0) scale(0.96);
}

.btn:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none !important;
}

.btn-spinner {
  display: none;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.btn.is-loading .btn-text {
  opacity: 0;
}

.btn.is-loading .btn-spinner {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  margin: -8px 0 0 -8px;
}

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

/* Status */
.status {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.25s, transform 0.25s;
}

.status.hidden {
  display: none;
}

.status--visible {
  opacity: 1;
  transform: translateY(0);
}

.status-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(108, 140, 255, 0.3);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  flex-shrink: 0;
}

.status.loading {
  background: rgba(108, 140, 255, 0.1);
  color: var(--accent);
  border: 1px solid rgba(108, 140, 255, 0.2);
}

.status.error {
  background: rgba(248, 113, 113, 0.1);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.status.empty {
  background: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* Shops split */
.shops-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  flex: 1;
  min-height: 0;
}

@media (max-width: 900px) {
  .shops-split {
    grid-template-columns: 1fr;
  }
  .shops-list {
    max-height: 420px;
  }
}

.shops-column {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--dur), box-shadow var(--dur);
}

.shops-column--buy:hover {
  border-color: rgba(251, 191, 36, 0.2);
  box-shadow: 0 0 40px var(--buy-glow);
}

.shops-column--sell:hover {
  border-color: rgba(52, 211, 153, 0.2);
  box-shadow: 0 0 40px var(--sell-glow);
}

.column-header {
  padding: 0.85rem 1rem;
  font-size: 0.92rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.55rem;
  flex-shrink: 0;
}

.column-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  animation: pulseDot 2s ease-in-out infinite;
}

.buy-header .column-dot {
  background: var(--buy);
  box-shadow: 0 0 8px var(--buy-glow);
}

.sell-header .column-dot {
  background: var(--sell);
  box-shadow: 0 0 8px var(--sell-glow);
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.6; transform: scale(0.85); }
}

.buy-header { color: var(--buy); }
.sell-header { color: var(--sell); }

.badge {
  margin-left: auto;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  transition: transform 0.3s var(--ease-spring);
}

.badge--buy {
  background: rgba(251, 191, 36, 0.15);
  color: var(--buy);
  border: 1px solid rgba(251, 191, 36, 0.25);
}

.badge--sell {
  background: rgba(52, 211, 153, 0.15);
  color: var(--sell);
  border: 1px solid rgba(52, 211, 153, 0.25);
}

.shops-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  min-height: 0;
  scroll-behavior: smooth;
}

.shops-list::-webkit-scrollbar,
.result-list::-webkit-scrollbar,
.modal-body::-webkit-scrollbar {
  width: 6px;
}

.shops-list::-webkit-scrollbar-track,
.result-list::-webkit-scrollbar-track,
.modal-body::-webkit-scrollbar-track {
  background: transparent;
}

.shops-list::-webkit-scrollbar-thumb,
.result-list::-webkit-scrollbar-thumb,
.modal-body::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 99px;
}

.shops-list::-webkit-scrollbar-thumb:hover,
.result-list::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

.column-empty {
  padding: 2.5rem 1rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Shop cards */
.shop-card {
  background: rgba(10, 12, 16, 0.5);
  border: 1px solid var(--border);
  border-radius: 11px;
  overflow: hidden;
  flex-shrink: 0;
  transition: transform var(--dur) var(--ease-out),
              box-shadow var(--dur),
              border-color var(--dur);
}

.shop-card--buy {
  border-left: 3px solid var(--buy);
}

.shop-card--sell {
  border-left: 3px solid var(--sell);
}

.shop-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
}

.shop-card--buy:hover {
  box-shadow: 0 8px 24px var(--buy-glow);
}

.shop-card--sell:hover {
  box-shadow: 0 8px 24px var(--sell-glow);
}

.animate-card {
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  transition: opacity 0.45s var(--ease-out),
              transform 0.45s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 45ms);
}

.animate-card.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.shop-header {
  padding: 0.65rem 0.9rem;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.shop-id {
  font-weight: 700;
  font-size: 0.95rem;
}

.shop-user {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.shop-body {
  padding: 0.45rem 0.9rem 0.6rem;
}

.btn-more {
  display: block;
  width: 100%;
  margin-top: 0.45rem;
  padding: 0.45rem 0.75rem;
  background: transparent;
  border: 1px dashed rgba(108, 140, 255, 0.35);
  border-radius: 8px;
  color: var(--accent);
  font-size: 0.8rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--dur), border-color var(--dur), transform 0.2s;
}

.btn-more:hover {
  background: rgba(108, 140, 255, 0.1);
  border-color: var(--accent);
  transform: scale(1.01);
}

.item-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 0.4rem 0.6rem;
  padding: 0.32rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.84rem;
  align-items: center;
  transition: background 0.2s, padding-left 0.2s;
}

.item-row:hover {
  background: rgba(255, 255, 255, 0.03);
  padding-left: 4px;
}

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

.animate-in {
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.35s var(--ease-out), transform 0.35s var(--ease-out);
  transition-delay: calc(var(--i, 0) * 30ms);
}

.animate-in.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.item-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-price {
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.item-count {
  color: var(--text-muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

/* Search */
.search-form {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
  flex-wrap: wrap;
  flex-shrink: 0;
}

.search-input-wrap {
  flex: 1;
  min-width: 240px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.9rem;
  opacity: 0.5;
  pointer-events: none;
  transition: opacity var(--dur), transform var(--dur);
}

.search-input-wrap:focus-within .search-icon {
  opacity: 1;
  transform: translateY(-50%) scale(1.1);
}

.search-input-wrap input {
  width: 100%;
  padding-left: 2.5rem;
}

.search-results {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s var(--ease-out), transform 0.45s var(--ease-out);
}

.search-results.hidden {
  display: none !important;
}

.search-results--visible {
  opacity: 1;
  transform: translateY(0);
}

.search-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  flex: 1;
  min-height: 0;
}

@media (max-width: 768px) {
  .search-columns {
    grid-template-columns: 1fr;
  }
}

.search-col {
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
  transition: border-color var(--dur), box-shadow var(--dur);
}

.search-col--buy:hover { box-shadow: 0 0 30px var(--buy-glow); }
.search-col--sell:hover { box-shadow: 0 0 30px var(--sell-glow); }

.col-title {
  padding: 0.85rem 1rem;
  font-size: 0.92rem;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 0.55rem;
}

.sell-title { color: var(--sell); }
.buy-title  { color: var(--buy); }

.result-list {
  flex: 1;
  overflow-y: auto;
  min-height: 0;
}

.result-row {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  align-items: start;
  transition: background var(--dur), transform 0.2s;
}

.result-row:hover {
  background: rgba(255, 255, 255, 0.04);
  transform: translateX(4px);
}

.result-item {
  font-weight: 500;
  font-size: 0.88rem;
}

.result-shop {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.result-details {
  text-align: right;
}

.result-price {
  font-weight: 700;
  color: var(--accent);
}

.result-count {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Modal */
body.modal-open {
  overflow: hidden;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.modal.hidden {
  display: none;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  backdrop-filter: blur(0);
  -webkit-backdrop-filter: blur(0);
  transition: background 0.3s, backdrop-filter 0.3s;
}

.modal--open .modal-backdrop {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.modal-box {
  position: relative;
  background: rgba(22, 26, 36, 0.95);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 100%;
  max-width: 520px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: scale(0.9) translateY(20px);
  transition: opacity 0.3s var(--ease-out), transform 0.35s var(--ease-spring);
}

.modal--open .modal-box {
  opacity: 1;
  transform: scale(1) translateY(0);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.modal-header h3 {
  font-size: 0.92rem;
  font-weight: 600;
}

.modal-close {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--dur), color var(--dur), transform 0.2s var(--ease-spring);
}

.modal-close:hover {
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
  transform: rotate(90deg);
}

.modal-body {
  padding: 0.75rem 1rem 1rem;
  overflow-y: auto;
}

/* Footer */
.footer {
  text-align: center;
  padding: 0.75rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.72rem;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  background: rgba(14, 17, 24, 0.6);
  backdrop-filter: blur(8px);
}

.footer code {
  background: rgba(255, 255, 255, 0.06);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.72rem;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .animate-card, .animate-in {
    opacity: 1;
    transform: none;
  }
}