@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=JetBrains+Mono:wght@300;400;500&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────────────────── */
:root {
  --bg:       #060a10;
  --bg2:      #0c1118;
  --panel:    #0f1620;
  --panel2:   #141d2a;
  --panel3:   #192333;
  --border:   rgba(255,255,255,.08);
  --border2:  rgba(255,255,255,.14);
  --text:     #dde4f0;
  --muted:    #6a7d95;
  --green:    #00e8a2;
  --green2:   #00c98a;
  --red:      #ff5369;
  --amber:    #ffbd2e;
  --blue:     #3ec9ff;
  --purple:   #a78bfa;
  --font:     'Syne', sans-serif;
  --mono:     'JetBrains Mono', monospace;
  --radius:   10px;
  --shadow:   0 8px 32px rgba(0,0,0,.45);
}

/* ─── Reset ─────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--panel3); border-radius: 3px; }

/* ─── Layout ─────────────────────────────────────────────────────────────── */
.wrap { max-width: 1320px; margin: 0 auto; padding: 0 20px; }

/* ─── Header ─────────────────────────────────────────────────────────────── */
header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,10,16,.92);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}
.topbar {
  display: flex; align-items: center;
  justify-content: space-between; gap: 16px;
  padding: 14px 20px;
  max-width: 1320px; margin: 0 auto;
}
.brand {
  font-size: 20px; font-weight: 800; letter-spacing: -.03em;
  color: var(--text);
}
.brand span { color: var(--green); }
.brand sub { font-size: 10px; color: var(--muted); font-weight: 400; letter-spacing: 0; margin-left: 4px; }

.hdr-right { display: flex; align-items: center; gap: 12px; }

/* Live badge */
.badge-live {
  display: flex; align-items: center; gap: 7px;
  font-size: 11px; color: var(--muted);
  background: rgba(0,232,162,.07);
  border: 1px solid rgba(0,232,162,.2);
  border-radius: 999px; padding: 4px 10px;
}
.dot-live {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
  animation: pulse 1.8s infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .6; transform: scale(.85); }
}

.logout-btn {
  background: none; border: 1px solid var(--border2); color: var(--muted);
  padding: 6px 12px; border-radius: 6px; cursor: pointer; font-size: 12px;
  transition: all .2s;
}
.logout-btn:hover { border-color: var(--red); color: var(--red); }

/* ─── Stats Bar ──────────────────────────────────────────────────────────── */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
.stat-item {
  background: var(--bg2);
  padding: 14px 20px;
  text-align: center;
}
.stat-item .sv { font-size: 22px; font-weight: 800; color: var(--green); line-height: 1; font-family: var(--mono); }
.stat-item .sl { font-size: 10px; color: var(--muted); margin-top: 4px; text-transform: uppercase; letter-spacing: .06em; }

/* ─── Tabs ───────────────────────────────────────────────────────────────── */
.tabs-nav {
  display: flex; gap: 2px;
  padding: 0 20px;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  max-width: 1320px; margin: 0 auto;
}
.tab-btn {
  background: none; border: none; color: var(--muted);
  padding: 14px 18px; font-family: var(--font);
  font-size: 13px; font-weight: 600; cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all .2s; white-space: nowrap;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active { color: var(--green); border-bottom-color: var(--green); }

.tab-panel { display: none; padding: 24px 20px; max-width: 1320px; margin: 0 auto; }
.tab-panel.active { display: block; }

/* ─── Section Headers ────────────────────────────────────────────────────── */
.section-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px; flex-wrap: wrap; gap: 10px;
}
.section-head h2 { font-size: 17px; font-weight: 700; }
.section-head .muted { font-size: 12px; color: var(--muted); }

/* ─── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

/* ─── Opportunity Table ──────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; background: var(--panel); min-width: 900px; }
thead th {
  padding: 11px 12px;
  background: var(--panel2);
  color: var(--muted); font-size: 10px;
  text-transform: uppercase; letter-spacing: .07em;
  font-weight: 600; font-family: var(--mono);
  border-bottom: 1px solid var(--border); white-space: nowrap;
}
tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .15s;
  cursor: pointer;
}
tbody tr:hover { background: var(--panel2); }
tbody tr:last-child { border-bottom: none; }
tbody td { padding: 10px 12px; white-space: nowrap; font-size: 13px; }

/* color helpers */
.g  { color: var(--green); }
.r  { color: var(--red); }
.a  { color: var(--amber); }
.b  { color: var(--blue); }
.m  { color: var(--muted); }

/* Exchange chips */
.chip {
  display: inline-block; border-radius: 4px;
  padding: 2px 7px; font-size: 11px; font-weight: 700;
  background: var(--panel3); color: var(--text);
  border: 1px solid var(--border2);
}
.chip.buy  { border-color: rgba(0,232,162,.3); color: var(--green); }
.chip.sell { border-color: rgba(255,83,105,.3); color: var(--red); }

/* Score badge */
.score-badge {
  display: inline-block; border-radius: 4px; padding: 2px 8px;
  font-size: 11px; font-weight: 700; font-family: var(--mono);
}
.score-hi  { background: rgba(0,232,162,.12); color: var(--green); }
.score-mid { background: rgba(255,189,46,.1); color: var(--amber); }
.score-lo  { background: rgba(255,83,105,.1);  color: var(--red); }

/* Action button */
.view-btn {
  background: rgba(0,232,162,.08); border: 1px solid rgba(0,232,162,.25);
  color: var(--green); padding: 5px 12px; border-radius: 5px;
  font-size: 11px; font-weight: 600; cursor: pointer; font-family: var(--font);
  transition: all .2s;
}
.view-btn:hover { background: rgba(0,232,162,.18); border-color: var(--green); }

/* Empty state */
.empty-state {
  text-align: center; padding: 60px 20px; color: var(--muted);
}
.empty-state .icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* ─── Filter Bar ─────────────────────────────────────────────────────────── */
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 14px; align-items: center;
}
.filter-bar input, .filter-bar select {
  background: var(--panel2); border: 1px solid var(--border2);
  color: var(--text); padding: 8px 12px; border-radius: 6px;
  font-family: var(--font); font-size: 12px;
  transition: border-color .2s;
}
.filter-bar input { width: 180px; }
.filter-bar select { width: 160px; }
.filter-bar input:focus, .filter-bar select:focus {
  outline: none; border-color: var(--green);
}

/* ─── Settings Panel ─────────────────────────────────────────────────────── */
.settings-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
}
.settings-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.settings-card h3 { font-size: 14px; margin-bottom: 16px; color: var(--text); }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 11px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.field input, .field select {
  background: var(--panel2); border: 1px solid var(--border2);
  color: var(--text); padding: 9px 12px; border-radius: 6px;
  font-family: var(--mono); font-size: 13px; width: 100%;
  transition: border-color .2s;
}
.field input:focus, .field select:focus { outline: none; border-color: var(--green); }
.field .hint { font-size: 11px; color: var(--muted); }

/* Toggle */
.toggle-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.toggle-row:last-child { border-bottom: none; }
.toggle-row .tl { font-size: 13px; }
.toggle-row .td { font-size: 11px; color: var(--muted); }

.toggle {
  position: relative; width: 42px; height: 23px; flex-shrink: 0;
}
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0; background: var(--panel3);
  border-radius: 999px; cursor: pointer; transition: background .2s;
  border: 1px solid var(--border2);
}
.toggle-slider::before {
  content: ''; position: absolute;
  width: 17px; height: 17px; border-radius: 50%;
  background: var(--muted); left: 2px; top: 2px;
  transition: transform .2s, background .2s;
}
.toggle input:checked + .toggle-slider { background: rgba(0,232,162,.15); border-color: var(--green); }
.toggle input:checked + .toggle-slider::before { transform: translateX(19px); background: var(--green); }

/* ─── Btn Primary ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 10px 20px; border-radius: 7px;
  font-family: var(--font); font-size: 13px; font-weight: 700;
  cursor: pointer; border: none; transition: all .2s;
}
.btn-primary { background: var(--green); color: #00130d; }
.btn-primary:hover { background: var(--green2); transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,232,162,.3); }
.btn-danger  { background: rgba(255,83,105,.1); border: 1px solid rgba(255,83,105,.3); color: var(--red); }
.btn-danger:hover  { background: rgba(255,83,105,.2); }
.btn-ghost   { background: var(--panel2); border: 1px solid var(--border2); color: var(--text); }
.btn-ghost:hover  { border-color: var(--border2); background: var(--panel3); }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-full { width: 100%; justify-content: center; }

/* ─── API Keys Grid ──────────────────────────────────────────────────────── */
.keys-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 16px;
}
.key-card {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px;
  transition: border-color .2s;
}
.key-card.connected { border-color: rgba(0,232,162,.25); }
.key-card:hover { border-color: var(--border2); }

.kc-head {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 14px;
}
.kc-name {
  display: flex; align-items: center; gap: 10px;
  font-size: 15px; font-weight: 700;
}
.ex-dot {
  width: 10px; height: 10px; border-radius: 50%;
}
.conn-badge {
  font-size: 10px; padding: 3px 8px; border-radius: 999px; font-weight: 700;
}
.conn-badge.yes { background: rgba(0,232,162,.12); color: var(--green); border: 1px solid rgba(0,232,162,.25); }
.conn-badge.no  { background: var(--panel2); color: var(--muted); border: 1px solid var(--border); }

.kc-field { margin-bottom: 10px; }
.kc-field label { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; display: block; margin-bottom: 4px; }
.kc-field input {
  width: 100%; background: var(--panel2); border: 1px solid var(--border);
  color: var(--text); padding: 8px 10px; border-radius: 6px;
  font-family: var(--mono); font-size: 12px;
  transition: border-color .2s;
}
.kc-field input:focus { outline: none; border-color: var(--green); }
.kc-actions { display: flex; gap: 8px; margin-top: 12px; }

/* ─── Trade Log ──────────────────────────────────────────────────────────── */
.log-badge {
  display: inline-block; padding: 2px 8px; border-radius: 4px;
  font-size: 10px; font-weight: 700; font-family: var(--mono);
}
.log-paper { background: rgba(58,201,255,.1); color: var(--blue); border: 1px solid rgba(58,201,255,.2); }
.log-live  { background: rgba(0,232,162,.1); color: var(--green); border: 1px solid rgba(0,232,162,.2); }
.log-ok    { background: rgba(0,232,162,.08); color: var(--green); }
.log-fail  { background: rgba(255,83,105,.08); color: var(--red); }

/* ─── Modal ──────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center; padding: 20px;
  opacity: 1; transition: opacity .25s;
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; }

.modal-box {
  background: var(--panel); border: 1px solid var(--border2);
  border-radius: 14px; width: 100%; max-width: 960px;
  max-height: 92vh; overflow-y: auto;
  box-shadow: var(--shadow);
  transform: translateY(0); transition: transform .25s;
}
.modal-overlay.hidden .modal-box { transform: translateY(16px); }

.modal-hdr {
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 22px; border-bottom: 1px solid var(--border);
  position: sticky; top: 0; background: var(--panel); z-index: 1;
  border-radius: 14px 14px 0 0;
}
.modal-hdr h3 { font-size: 18px; font-weight: 800; }
.modal-close {
  background: none; border: none; color: var(--muted); font-size: 26px;
  cursor: pointer; line-height: 1; transition: color .2s; padding: 0;
}
.modal-close:hover { color: var(--red); }

.modal-body { padding: 22px; }

/* Orderbook panel */
.ob-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.ob-panel {
  background: var(--panel2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.ob-hdr {
  padding: 10px 14px; font-size: 12px; font-weight: 700;
  display: flex; justify-content: space-between; align-items: center;
}
.ob-hdr.buy  { background: rgba(0,232,162,.06); border-bottom: 1px solid rgba(0,232,162,.15); color: var(--green); }
.ob-hdr.sell { background: rgba(255,83,105,.06); border-bottom: 1px solid rgba(255,83,105,.15); color: var(--red); }
.ob-cols {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  padding: 6px 14px;
  font-size: 10px; color: var(--muted); text-transform: uppercase;
  border-bottom: 1px solid var(--border);
}
.ob-row {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  padding: 5px 14px; font-family: var(--mono); font-size: 12px;
  border-bottom: 1px solid rgba(255,255,255,.03);
  position: relative;
}
.ob-bar {
  position: absolute; left: 0; top: 0; height: 100%;
  opacity: .07; pointer-events: none;
}
.ob-bar.buy  { background: var(--green); }
.ob-bar.sell { background: var(--red); }
.ob-vwap {
  padding: 8px 14px; font-size: 12px; font-weight: 700;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between;
}
.ob-vwap.buy  { color: var(--green); }
.ob-vwap.sell { color: var(--red); }

/* Validation grid */
.val-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 20px; }
.val-card {
  background: var(--panel2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px;
}
.val-card h4 { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 12px; }
.val-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 6px 0; border-bottom: 1px solid var(--border); font-size: 13px;
}
.val-row:last-child { border-bottom: none; }
.val-v { font-family: var(--mono); font-size: 12px; font-weight: 700; }

/* Verdict */
.verdict {
  border-radius: var(--radius); padding: 14px 18px;
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 16px;
}
.verdict.ok    { background: rgba(0,232,162,.07); border: 1px solid rgba(0,232,162,.2); }
.verdict.warn  { background: rgba(255,189,46,.07); border: 1px solid rgba(255,189,46,.2); }
.verdict.fail  { background: rgba(255,83,105,.07); border: 1px solid rgba(255,83,105,.2); }
.verdict-icon  { font-size: 26px; }
.verdict-title { font-weight: 700; font-size: 15px; }
.verdict-sub   { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* Execute row */
.exec-row {
  display: flex; gap: 12px; align-items: center;
  padding-top: 16px; border-top: 1px solid var(--border);
}
.exec-amount {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; color: var(--muted);
}
.exec-amount strong { color: var(--text); font-family: var(--mono); }

/* ─── Profit breakdown ───────────────────────────────────────────────────── */
.profit-breakdown {
  background: var(--panel2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px; margin-bottom: 16px;
}
.pb-row {
  display: flex; justify-content: space-between; align-items: center;
  padding: 5px 0; font-size: 13px; border-bottom: 1px solid rgba(255,255,255,.04);
}
.pb-row:last-child { border-bottom: none; padding-top: 10px; margin-top: 4px; border-top: 1px solid var(--border); }
.pb-row:last-child .pb-k { font-weight: 700; font-size: 14px; }
.pb-row:last-child .pb-v { font-size: 16px; font-weight: 800; }
.pb-k { color: var(--muted); }
.pb-v { font-family: var(--mono); }

/* ─── Login ──────────────────────────────────────────────────────────────── */
.login-page {
  min-height: 100vh; display: grid; place-items: center;
  background: radial-gradient(ellipse at 20% 50%, rgba(0,232,162,.05) 0%, transparent 70%),
              var(--bg);
}
.login-box {
  width: min(400px, 100%); padding: 36px;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 14px; box-shadow: var(--shadow);
}
.login-box .brand { font-size: 24px; margin-bottom: 6px; }
.login-form { display: grid; gap: 16px; margin-top: 24px; }
.login-form label { display: grid; gap: 6px; font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.login-form input {
  background: var(--panel2); border: 1px solid var(--border2);
  color: var(--text); padding: 11px 14px; border-radius: 7px;
  font-family: var(--mono); font-size: 14px; width: 100%;
  transition: border-color .2s;
}
.login-form input:focus { outline: none; border-color: var(--green); }
.login-error {
  color: var(--red); background: rgba(255,83,105,.08);
  border: 1px solid rgba(255,83,105,.2);
  border-radius: 7px; padding: 12px 14px; font-size: 13px; margin-top: 14px;
}
.login-sub { font-size: 12px; color: var(--muted); margin-bottom: 0; }

/* ─── Alert/Toast ────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  display: flex; flex-direction: column; gap: 10px;
  z-index: 9999;
}
.toast {
  background: var(--panel2); border: 1px solid var(--border2);
  color: var(--text); padding: 12px 18px; border-radius: 8px;
  font-size: 13px; box-shadow: var(--shadow);
  animation: slideIn .3s ease;
  display: flex; align-items: center; gap: 10px; max-width: 320px;
}
.toast.ok   { border-color: rgba(0,232,162,.3); }
.toast.err  { border-color: rgba(255,83,105,.3); }
.toast.warn { border-color: rgba(255,189,46,.3); }
@keyframes slideIn { from { transform: translateX(30px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .stats-bar      { grid-template-columns: repeat(3, 1fr); }
  .settings-grid  { grid-template-columns: 1fr; }
  .ob-grid        { grid-template-columns: 1fr; }
  .val-grid       { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .stats-bar { grid-template-columns: 1fr 1fr; }
  .tabs-nav  { overflow-x: auto; }
  .tab-btn   { padding: 12px 14px; font-size: 12px; }
  .keys-grid { grid-template-columns: 1fr; }
}

/* ─── Multi-Select UI ────────────────────────────────────────────────────── */
.ex-multi-select { position: relative; min-width: 180px; }
.ex-multi-select-btn {
  background: var(--panel2); border: 1px solid var(--border); color: var(--text);
  padding: 8px 14px; border-radius: 8px; cursor: pointer; font-size: 13px;
  display: flex; justify-content: space-between; align-items: center;
  height: 38px; user-select: none;
}
.ex-multi-select-menu {
  position: absolute; top: 100%; left: 0; min-width: 200px; margin-top: 6px;
  background: var(--panel2); border: 1px solid var(--border); border-radius: 8px;
  box-shadow: var(--shadow); z-index: 1000; max-height: 280px; overflow-y: auto;
  padding: 6px; display: flex; flex-direction: column; gap: 2px;
}
.ex-multi-select-menu.hidden { display: none; }
.ex-multi-select-menu label {
  display: flex; align-items: center; gap: 10px; padding: 6px 10px; border-radius: 6px;
  cursor: pointer; transition: background .2s; font-size: 13px; font-weight: 500;
}
.ex-multi-select-menu label:hover { background: var(--panel3); }
.ex-multi-select-menu input[type="checkbox"] {
  cursor: pointer; width: 14px; height: 14px; accent-color: var(--green);
}