:root {
  --bg: #0b0e11;
  --bg2: #12161c;
  --bg3: #1a1f27;
  --border: #2a2e37;
  --border2: #363a45;
  --text: #eaecef;
  --muted: #848e9c;
  --dim: #5e6673;
  --green: #0ecb81;
  --green2: #0a9b62;
  --red: #f6465d;
  --red2: #c73a4d;
  --yellow: #f0b90b;
  --blue: #3b82f6;
  --font: 'Inter', -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 13px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
}
.up { color: var(--green); }
.down { color: var(--red); }

/* ===== AUTH ===== */
.auth-view {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}
.auth-left {
  background: linear-gradient(160deg, #0d1117 0%, #161b22 50%, #0b0e11 100%);
  padding: 60px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border-right: 1px solid var(--border);
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  margin-bottom: 32px;
}
.brand-icon { color: var(--yellow); font-size: 28px; }
.brand-name span, .logo span { color: var(--yellow); }
.auth-left h1 {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.8px;
  margin-bottom: 14px;
  max-width: 420px;
}
.auth-left > p {
  color: var(--muted);
  font-size: 15px;
  max-width: 380px;
  margin-bottom: 36px;
}
.auth-features { display: flex; flex-direction: column; gap: 12px; }
.feat {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--muted);
}
.feat span {
  width: 22px; height: 22px;
  background: rgba(14, 203, 129, 0.15);
  color: var(--green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
}
.auth-right {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  background: var(--bg);
}
.auth-box {
  width: 100%;
  max-width: 380px;
}
.tabs {
  display: flex;
  background: var(--bg2);
  border-radius: 8px;
  padding: 3px;
  margin-bottom: 24px;
}
.tab {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 10px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
}
.tab.active {
  background: var(--bg3);
  color: var(--text);
}
.form { display: flex; flex-direction: column; gap: 6px; }
.form label {
  font-size: 12px;
  color: var(--muted);
  margin-top: 10px;
}
.form input {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-size: 14px;
  font-family: var(--font);
  outline: none;
}
.form input:focus { border-color: var(--yellow); }
.btn-main {
  background: var(--yellow);
  color: #0b0e11;
  border: none;
  padding: 14px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  margin-top: 18px;
  transition: opacity 0.15s;
}
.btn-main:hover { opacity: 0.9; }
.auth-note {
  text-align: center;
  font-size: 12px;
  color: var(--dim);
  margin-top: 16px;
}
.link {
  display: block;
  width: 100%;
  text-align: center;
  background: none;
  border: none;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  margin-top: 12px;
  padding: 8px;
}
.link:hover { text-decoration: underline; }

/* ===== HEADER ===== */
.header {
  height: 52px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.admin-hdr { border-bottom-color: rgba(240, 185, 11, 0.35); }
.header-l, .header-r { display: flex; align-items: center; gap: 20px; }
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 15px;
}
.nav { display: flex; gap: 2px; }
.nav-item {
  background: transparent;
  border: none;
  color: var(--muted);
  padding: 6px 14px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 13px;
  cursor: pointer;
}
.nav-item:hover { color: var(--text); }
.nav-item.active { color: var(--text); background: rgba(255,255,255,0.06); }
.bal-pill {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  line-height: 1.15;
}
.bal-pill .lbl { font-size: 10px; color: var(--dim); text-transform: uppercase; }
.bal-pill .val { font-family: var(--mono); font-weight: 600; font-size: 13px; }
.user-chip { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}
.btn-ghost:hover { color: var(--red); border-color: var(--red); }
.owner-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--yellow);
  background: rgba(240, 185, 11, 0.12);
  border: 1px solid rgba(240, 185, 11, 0.3);
  padding: 4px 10px;
  border-radius: 20px;
}

/* ===== TRADE GRID ===== */
.page { display: none; height: calc(100vh - 52px); }
.page.active { display: block; }
.trade-grid {
  display: grid;
  grid-template-columns: 200px 1fr 280px;
  height: 100%;
}
.pairs-panel, .order-panel {
  background: var(--bg2);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
.order-panel { border-right: none; border-left: 1px solid var(--border); }
.panel-title {
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.pair-search { padding: 8px; }
.pair-search input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 12px;
  outline: none;
}
.pair-tabs {
  display: flex;
  padding: 0 8px 8px;
  gap: 4px;
}
.ptab {
  flex: 1;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}
.ptab.active { background: rgba(240, 185, 11, 0.1); color: var(--yellow); border-color: rgba(240, 185, 11, 0.3); }
.pair-list { flex: 1; overflow-y: auto; }
.pair-row {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 8px 12px;
  cursor: pointer;
  font-size: 12px;
  border-bottom: 1px solid rgba(255,255,255,0.02);
}
.pair-row:hover, .pair-row.active { background: rgba(255,255,255,0.04); }
.pair-row .name { font-weight: 600; }
.pair-row .sub { font-size: 10px; color: var(--dim); }
.pair-row .px { font-family: var(--mono); text-align: right; }
.pair-row .ch { font-family: var(--mono); font-size: 11px; text-align: right; }

/* Center */
.center-panel {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
}
.symbol-bar {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
  flex-wrap: wrap;
}
.sym-info { display: flex; align-items: center; gap: 10px; }
.sym-info h2 { font-size: 18px; font-weight: 700; }
.mode-tag {
  font-size: 10px;
  font-weight: 700;
  background: rgba(240, 185, 11, 0.15);
  color: var(--yellow);
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}
.sym-prices { display: flex; align-items: baseline; gap: 10px; }
.sym-prices .last {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
}
.sym-prices .chg { font-family: var(--mono); font-size: 13px; font-weight: 600; }
.sym-stats {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 11px;
}
.sym-stats span { color: var(--dim); display: block; }
.sym-stats b { font-family: var(--mono); font-weight: 500; }

.chart-wrap {
  flex: 1;
  min-height: 220px;
  padding: 8px;
  position: relative;
}
#mainChart { width: 100%; height: 100%; display: block; }

.bottom-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  height: 240px;
  border-top: 1px solid var(--border);
}
.ob-panel, .trades-panel {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border);
}
.trades-panel { border-right: none; }
.ob-head, .tr-head {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 4px 10px;
  font-size: 10px;
  color: var(--dim);
  text-transform: uppercase;
}
.ob-asks, .ob-bids, .tr-list {
  flex: 1;
  overflow-y: auto;
  font-family: var(--mono);
  font-size: 11px;
}
.ob-row, .tr-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  padding: 2px 10px;
  position: relative;
}
.ob-row .bar {
  position: absolute;
  top: 0; right: 0; bottom: 0;
  opacity: 0.12;
  pointer-events: none;
}
.ob-row.ask .bar { background: var(--red); }
.ob-row.bid .bar { background: var(--green); }
.ob-row.ask .p { color: var(--red); }
.ob-row.bid .p { color: var(--green); }
.ob-mid {
  text-align: center;
  padding: 6px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 14px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg2);
}
.tr-row .p.up { color: var(--green); }
.tr-row .p.down { color: var(--red); }
.tr-row .t { color: var(--dim); text-align: right; }

/* Order panel */
.order-tabs {
  display: flex;
  padding: 8px;
  gap: 4px;
}
.otab {
  flex: 1;
  border: none;
  padding: 9px;
  border-radius: 6px;
  font-weight: 700;
  font-size: 13px;
  cursor: pointer;
  background: var(--bg3);
  color: var(--muted);
}
.otab.active[data-side="buy"] { background: var(--green); color: #0b0e11; }
.otab.active[data-side="sell"] { background: var(--red); color: #fff; }
.order-type-row { padding: 0 12px 8px; }
.order-type-row select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--text);
  font-size: 12px;
  outline: none;
}
.lev-row { padding: 0 12px 10px; }
.lev-row label { font-size: 11px; color: var(--muted); display: block; margin-bottom: 6px; }
.lev-btns { display: flex; flex-wrap: wrap; gap: 4px; }
.lev-btns button {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}
.lev-btns button.on {
  background: rgba(240, 185, 11, 0.15);
  border-color: var(--yellow);
  color: var(--yellow);
}
.field { padding: 0 12px 10px; }
.field label { font-size: 11px; color: var(--muted); display: block; margin-bottom: 4px; }
.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  outline: none;
}
.field input:focus { border-color: var(--yellow); }
.pct-row {
  display: flex;
  gap: 4px;
  padding: 0 12px 12px;
}
.pct-row button {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 5px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
}
.pct-row button:hover { color: var(--text); border-color: var(--border2); }
.cost-row, .avail-row {
  display: flex;
  justify-content: space-between;
  padding: 4px 12px;
  font-size: 12px;
}
.cost-row span, .avail-row span { color: var(--muted); }
.cost-row strong, .avail-row strong { font-family: var(--mono); }
.btn-order {
  margin: 12px;
  border: none;
  padding: 14px;
  border-radius: 8px;
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  width: calc(100% - 24px);
}
.btn-order.buy { background: var(--green); color: #0b0e11; }
.btn-order.sell { background: var(--red); color: #fff; }
.btn-order:hover { opacity: 0.9; }
.pos-summary {
  padding: 8px 12px 16px;
  font-size: 11px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  margin-top: auto;
}

/* Assets / Orders pages */
.page-inner {
  padding: 24px;
  max-width: 1000px;
  margin: 0 auto;
  overflow-y: auto;
  height: 100%;
}
.page-inner h1 { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.page-inner .sub { color: var(--muted); margin-bottom: 20px; font-size: 13px; }
.asset-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.acard {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.acard span { font-size: 12px; color: var(--muted); }
.acard strong { font-family: var(--mono); font-size: 20px; font-weight: 600; }
.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.card-h {
  padding: 12px 16px;
  font-weight: 600;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.notice {
  margin-top: 16px;
  padding: 14px 16px;
  background: rgba(59, 130, 246, 0.08);
  border: 1px solid rgba(59, 130, 246, 0.2);
  border-radius: 8px;
  font-size: 13px;
  color: var(--muted);
}
.notice strong { color: var(--blue); }

.row-item {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr 1fr;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 12px;
  align-items: center;
}
.row-item.head {
  color: var(--dim);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.3px;
}
.row-item .mono { font-family: var(--mono); }

/* Admin */
.admin-body { max-width: 1100px; }
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.admin-form {
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.admin-form label { font-size: 11px; color: var(--muted); margin-top: 8px; }
.admin-form input {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 11px 12px;
  color: var(--text);
  font-size: 13px;
  outline: none;
}
.admin-form input:focus { border-color: var(--yellow); }
.ov-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.04);
  font-size: 13px;
}
.ov-row span { color: var(--muted); }
.ov-row b { font-family: var(--mono); font-size: 16px; }
.btn-sm {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  cursor: pointer;
}
.btn-sm:hover { color: var(--text); }
.u-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr auto;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 12px;
  align-items: center;
}
.u-row.head { color: var(--dim); font-size: 10px; text-transform: uppercase; }
.btn-fund {
  background: rgba(240, 185, 11, 0.12);
  border: 1px solid rgba(240, 185, 11, 0.3);
  color: var(--yellow);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
}
.btn-fund:hover { background: rgba(240, 185, 11, 0.22); }
.log-item {
  display: flex;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  font-size: 12px;
}
.log-item .meta { color: var(--dim); font-size: 11px; }

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  transform: translateY(80px);
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 999;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.ok { border-left: 3px solid var(--green); }
.toast.err { border-left: 3px solid var(--red); }

::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 3px; }

@media (max-width: 1100px) {
  .trade-grid { grid-template-columns: 1fr 280px; }
  .pairs-panel { display: none; }
}
@media (max-width: 800px) {
  .auth-view { grid-template-columns: 1fr; }
  .auth-left { display: none; }
  .trade-grid { grid-template-columns: 1fr; }
  .order-panel { display: none; }
  .bottom-panels { grid-template-columns: 1fr; height: auto; }
  .nav { display: none; }
  .asset-cards, .admin-grid { grid-template-columns: 1fr; }
}