/* ============================================================================
   AZEA NEXUS — Spatial Neon Trading Interface (master §16)
   Soft-black spatial surfaces, controlled neon, concentric geometry, tabular
   numerals. Color-independent status (icon + sign + color). Reduced-motion safe.
   ============================================================================ */

:root {
  /* Backgrounds */
  --obsidian:   #05070B;
  --deep-space: #080C12;
  --graphite:   #10151D;
  --elevated:   #151B25;
  --surface-2:  #1B2331;

  /* Accents */
  --cyan:    #36E4FF;
  --plasma:  #4B7CFF;
  --violet:  #875CFF;
  --green:   #2EE6A6;
  --amber:   #FFB84D;
  --red:     #FF4D6D;

  /* Text */
  --t-primary:   #EAF2FF;
  --t-secondary: #9FB0C7;
  --t-muted:     #61708A;
  --t-disabled:  #455067;

  /* Lines / glass */
  --border:      rgba(255,255,255,.07);
  --border-strong: rgba(255,255,255,.14);
  --glass:       rgba(255,255,255,.025);
  --glass-2:     rgba(255,255,255,.045);

  /* Concentric radii (master §16.5) */
  --r-parent:  28px;
  --r-card:    20px;
  --r-control: 14px;
  --r-compact: 10px;

  /* Motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --t-fast: .14s; --t-med: .26s;

  /* Layout */
  --sidebar-w: 248px;
  --maxw: 1480px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, system-ui, sans-serif;
  background:
    radial-gradient(1200px 700px at 78% -8%, rgba(75,124,255,.10), transparent 60%),
    radial-gradient(900px 600px at 8% 108%, rgba(135,92,255,.10), transparent 60%),
    var(--obsidian);
  color: var(--t-primary);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.5;
}
.num { font-variant-numeric: tabular-nums; font-feature-settings: "tnum" 1; }

a { color: inherit; text-decoration: none; }
::-webkit-scrollbar { width: 9px; height: 9px; }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 8px; }
::selection { background: rgba(54,228,255,.25); }

/* ---------------------------------- App shell ---------------------------- */
.app { display: grid; grid-template-columns: var(--sidebar-w) 1fr; min-height: 100vh; }

.sidebar {
  position: sticky; top: 0; align-self: start; height: 100vh;
  display: flex; flex-direction: column; gap: 6px;
  padding: 20px 14px;
  background: linear-gradient(180deg, rgba(21,27,37,.7), rgba(8,12,18,.6));
  border-right: 1px solid var(--border);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.brand { display: flex; align-items: center; gap: 11px; padding: 6px 10px 16px; }
.brand .logo {
  width: 34px; height: 34px; border-radius: 11px;
  background: conic-gradient(from 200deg, var(--cyan), var(--plasma), var(--violet), var(--cyan));
  box-shadow: 0 0 22px rgba(54,228,255,.35); flex: 0 0 auto;
}
.brand b { font-size: 15px; letter-spacing: .3px; }
.brand small { display: block; color: var(--t-muted); font-size: 10.5px; letter-spacing: 1.5px; text-transform: uppercase; }

.nav { display: flex; flex-direction: column; gap: 3px; overflow-y: auto; }
.nav a {
  display: flex; align-items: center; gap: 11px;
  padding: 10px 12px; border-radius: var(--r-control);
  color: var(--t-secondary); font-weight: 500; font-size: 13.5px;
  border: 1px solid transparent; transition: all var(--t-fast) var(--ease);
}
.nav a .ico { width: 18px; text-align: center; opacity: .85; }
.nav a:hover { background: var(--glass); color: var(--t-primary); }
.nav a.active {
  background: linear-gradient(90deg, rgba(54,228,255,.14), rgba(75,124,255,.05));
  color: #fff; border-color: rgba(54,228,255,.25);
  box-shadow: inset 0 0 0 1px rgba(54,228,255,.08), 0 0 18px rgba(54,228,255,.10);
}
.nav .sep { height: 1px; background: var(--border); margin: 8px 6px; }
.nav .label { color: var(--t-muted); font-size: 10px; letter-spacing: 1.4px; text-transform: uppercase; padding: 12px 12px 4px; }

.main { min-width: 0; display: flex; flex-direction: column; }

/* ---------------------------------- Topbar ------------------------------- */
.topbar {
  position: sticky; top: 0; z-index: 30;
  display: flex; align-items: center; gap: 14px;
  padding: 13px 22px;
  background: rgba(8,12,18,.66); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 16px; margin: 0; font-weight: 600; letter-spacing: .2px; }
.topbar .spacer { flex: 1; }

.chip {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 6px 11px; border-radius: 999px; font-size: 12px; font-weight: 600;
  border: 1px solid var(--border-strong); background: var(--glass); color: var(--t-secondary);
}
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--t-muted); }
.dot.live { background: var(--green); box-shadow: 0 0 10px var(--green); animation: pulse 2s var(--ease) infinite; }
.dot.warn { background: var(--amber); box-shadow: 0 0 10px var(--amber); }
.dot.down { background: var(--red); box-shadow: 0 0 10px var(--red); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

.mode-badge {
  padding: 6px 12px; border-radius: 999px; font-size: 11.5px; font-weight: 700; letter-spacing: .6px;
  text-transform: uppercase; border: 1px solid;
}
.mode-PAPER, .mode-BACKTEST { color: var(--cyan); border-color: rgba(54,228,255,.35); background: rgba(54,228,255,.08); }
.mode-TESTNET, .mode-SHADOW { color: var(--violet); border-color: rgba(135,92,255,.35); background: rgba(135,92,255,.08); }
.mode-LIMITED_LIVE { color: var(--amber); border-color: rgba(255,184,77,.4); background: rgba(255,184,77,.08); }
.mode-LIVE { color: var(--green); border-color: rgba(46,230,166,.45); background: rgba(46,230,166,.10); }
.mode-EMERGENCY_STOP { color: var(--red); border-color: rgba(255,77,109,.5); background: rgba(255,77,109,.12); }

.content { padding: 22px; max-width: var(--maxw); width: 100%; margin: 0 auto; }

/* ---------------------------------- Grid --------------------------------- */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px; }
.col-3 { grid-column: span 3; } .col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; } .col-8 { grid-column: span 8; }
.col-12 { grid-column: span 12; }

/* ---------------------------------- Cards -------------------------------- */
.card {
  position: relative;
  background: linear-gradient(180deg, var(--glass-2), var(--glass));
  border: 1px solid var(--border);
  border-radius: var(--r-card);
  padding: 18px;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.04), 0 12px 30px rgba(0,0,0,.32);
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}
.card::before {
  content:""; position:absolute; inset:0; border-radius: inherit; pointer-events:none;
  background: linear-gradient(180deg, rgba(255,255,255,.06), transparent 30%); opacity:.6;
}
.card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.card .eyebrow { color: var(--t-muted); font-size: 11px; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 9px; }
.metric { font-size: 30px; font-weight: 650; letter-spacing: -.5px; }
.metric.sm { font-size: 21px; }
.metric.hero { font-size: 40px; }
.sub { color: var(--t-secondary); font-size: 12.5px; margin-top: 4px; }

.change { display:inline-flex; align-items:center; gap:5px; font-size:13px; font-weight:600; }
.up { color: var(--green); } .down { color: var(--red); } .flat { color: var(--t-muted); }
.up::before { content:"▲"; font-size:9px; }
.down::before { content:"▼"; font-size:9px; }

/* ---------------------------------- Tables ------------------------------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
table.tbl th {
  text-align: left; color: var(--t-muted); font-weight: 600; font-size: 11px;
  text-transform: uppercase; letter-spacing: .6px; padding: 10px 12px;
  border-bottom: 1px solid var(--border); position: sticky; top: 0; background: var(--deep-space);
}
table.tbl td { padding: 11px 12px; border-bottom: 1px solid var(--border); }
table.tbl tr:hover td { background: var(--glass); }
table.tbl td.r, table.tbl th.r { text-align: right; }

/* ---------------------------------- Buttons ------------------------------ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 18px; border-radius: var(--r-control);
  font-weight: 600; font-size: 14px; cursor: pointer; border: 1px solid var(--border-strong);
  background: var(--glass-2); color: var(--t-primary); transition: all var(--t-fast) var(--ease);
}
.btn:hover { border-color: rgba(54,228,255,.4); background: rgba(54,228,255,.08); }
.btn.primary {
  background: linear-gradient(90deg, var(--cyan), var(--plasma)); color: #04121c; border: none;
  box-shadow: 0 0 22px rgba(54,228,255,.28);
}
.btn.primary:hover { filter: brightness(1.07); }
.btn.danger { color: var(--red); border-color: rgba(255,77,109,.45); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn.sm { min-height: 34px; padding: 0 13px; font-size: 13px; }

/* ---------------------------------- Forms -------------------------------- */
.field { margin-bottom: 14px; }
.field label { display:block; color: var(--t-secondary); font-size: 12.5px; margin-bottom: 6px; }
.input {
  width: 100%; min-height: 44px; padding: 0 14px; border-radius: var(--r-control);
  background: var(--graphite); border: 1px solid var(--border-strong); color: var(--t-primary);
  font-size: 14px; transition: border-color var(--t-fast) var(--ease);
}
.input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(54,228,255,.12); }

/* ---------------------------------- Badges ------------------------------- */
.badge { display:inline-flex; align-items:center; gap:5px; padding:3px 9px; border-radius:999px; font-size:11px; font-weight:600; border:1px solid var(--border-strong); }
.badge.ok    { color: var(--green); border-color: rgba(46,230,166,.4); background: rgba(46,230,166,.08); }
.badge.warn  { color: var(--amber); border-color: rgba(255,184,77,.4); background: rgba(255,184,77,.08); }
.badge.crit  { color: var(--red);   border-color: rgba(255,77,109,.45); background: rgba(255,77,109,.10); }
.badge.muted { color: var(--t-muted); }

.stale-banner {
  display:none; align-items:center; gap:10px; margin-bottom:16px;
  padding:12px 16px; border-radius: var(--r-control);
  background: rgba(255,184,77,.10); border:1px solid rgba(255,184,77,.4); color: var(--amber); font-weight:600;
}
.stale-banner.show { display:flex; }

/* skeleton + empty + error states */
.skel { background: linear-gradient(90deg, var(--graphite), var(--surface-2), var(--graphite)); background-size: 200% 100%; animation: shimmer 1.3s infinite; border-radius: 8px; color: transparent; }
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }
.empty, .error-state { text-align:center; color: var(--t-muted); padding: 36px 16px; }
.error-state { color: var(--red); }

.section-title { font-size: 13px; color: var(--t-secondary); font-weight: 600; margin: 4px 0 12px; letter-spacing:.3px; }

/* ---------------------------- Mobile bottom nav -------------------------- */
.mobile-nav { display: none; }

/* ============================== RESPONSIVE ============================== */
@media (max-width: 1024px) {
  :root { --sidebar-w: 0px; }
  .sidebar { display: none; }
  .app { grid-template-columns: 1fr; }
  .col-3 { grid-column: span 6; } .col-4 { grid-column: span 6; }
  .col-8 { grid-column: span 12; }
  .content { padding: 16px; padding-bottom: 92px; }
  .mobile-nav {
    display: flex; position: fixed; bottom: 0; left: 0; right: 0; z-index: 50;
    justify-content: space-around; padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
    background: rgba(8,12,18,.92); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
    border-top: 1px solid var(--border);
  }
  .mobile-nav a {
    display:flex; flex-direction:column; align-items:center; gap:3px; flex:1;
    color: var(--t-muted); font-size: 10.5px; font-weight:600; padding:6px 2px; min-height:44px; border-radius:12px;
  }
  .mobile-nav a .ico { font-size: 18px; }
  .mobile-nav a.active { color: var(--cyan); }
}
@media (max-width: 560px) {
  .col-3, .col-4, .col-6 { grid-column: span 12; }
  .metric { font-size: 26px; } .metric.hero { font-size: 32px; }
  .topbar { padding: 11px 14px; }
  .topbar h1 { font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ============================================================================
   PRO TRADING TERMINAL — Binance-grade components (chart, depth book, tape)
   ============================================================================ */

/* Ticker strip */
.tkr { display:flex; align-items:center; gap:22px; flex-wrap:wrap; }
.tkr .sym { font-size:20px; font-weight:700; letter-spacing:.3px; }
.tkr .last { font-size:22px; font-weight:700; }
.tkr .stat { display:flex; flex-direction:column; gap:2px; }
.tkr .stat .k { color:var(--t-muted); font-size:10px; text-transform:uppercase; letter-spacing:.6px; }
.tkr .stat .v { font-size:13px; font-weight:600; }

/* Layout: chart | book/tape */
.term-grid { display:grid; grid-template-columns: 1fr 340px; gap:16px; }
.term-grid .right-col { display:flex; flex-direction:column; gap:16px; }
@media (max-width:1100px){ .term-grid { grid-template-columns:1fr; } }

.chart-card { padding:14px; }
.chart-box { width:100%; height:460px; border-radius:var(--r-control); overflow:hidden; }
@media (max-width:560px){ .chart-box{ height:340px; } }

/* Timeframe pills */
.tf-row { display:flex; gap:5px; flex-wrap:wrap; margin-bottom:12px; }
.tf { padding:5px 11px; border-radius:9px; font-size:12px; font-weight:600; cursor:pointer;
  color:var(--t-secondary); border:1px solid var(--border); background:var(--glass); transition:all var(--t-fast) var(--ease); }
.tf:hover { color:#fff; border-color:var(--border-strong); }
.tf.active { color:#04121c; background:linear-gradient(90deg,var(--cyan),var(--plasma)); border:none; box-shadow:0 0 14px rgba(54,228,255,.3); }

/* Depth order book */
.book { font-variant-numeric:tabular-nums; }
.book-head { display:grid; grid-template-columns:1fr 1fr 1fr; gap:4px; color:var(--t-muted);
  font-size:10px; text-transform:uppercase; letter-spacing:.6px; padding:0 4px 8px; }
.book-head .r { text-align:right; }
.lvl { position:relative; display:grid; grid-template-columns:1fr 1fr 1fr; gap:4px;
  padding:3px 4px; font-size:12px; z-index:1; }
.lvl .px { font-weight:600; }
.lvl .q, .lvl .t { text-align:right; color:var(--t-secondary); }
.lvl .bar { position:absolute; top:0; bottom:0; right:0; z-index:-1; border-radius:3px; opacity:.16; }
.lvl.ask .px { color:var(--red); } .lvl.ask .bar { background:var(--red); }
.lvl.bid .px { color:var(--green); } .lvl.bid .bar { background:var(--green); }
.book-mid { display:flex; align-items:baseline; gap:10px; justify-content:center;
  padding:9px 0; margin:5px 0; border-block:1px solid var(--border); }
.book-mid .p { font-size:18px; font-weight:700; }
.book-mid .sp { color:var(--t-muted); font-size:11px; }

/* Trade tape */
.tape { font-variant-numeric:tabular-nums; max-height:230px; overflow-y:auto; }
.tape .row { display:grid; grid-template-columns:1fr 1fr auto; gap:8px; padding:3px 4px; font-size:12px; }
.tape .row .px { font-weight:600; }
.tape .row.buy .px { color:var(--green); } .tape .row.sell .px { color:var(--red); }
.tape .row .q { text-align:right; color:var(--t-secondary); }
.tape .row .tm { color:var(--t-muted); font-size:11px; }

/* Order entry (pro) */
.oe-tabs { display:flex; gap:6px; margin-bottom:12px; }
.oe-tabs .t { flex:1; text-align:center; padding:9px; border-radius:var(--r-compact); font-weight:700; font-size:13px; cursor:pointer; border:1px solid var(--border); }
.oe-tabs .t.buy.active { background:rgba(46,230,166,.14); color:var(--green); border-color:rgba(46,230,166,.4); }
.oe-tabs .t.sell.active { background:rgba(255,77,109,.12); color:var(--red); border-color:rgba(255,77,109,.4); }
.gated { padding:11px 13px; border-radius:var(--r-control); font-size:12px; font-weight:600;
  background:rgba(54,228,255,.07); border:1px solid rgba(54,228,255,.28); color:var(--cyan); }

/* Market table: change pill + mini bar */
.chg-pill { display:inline-block; min-width:64px; text-align:right; padding:2px 8px; border-radius:7px; font-weight:600; font-size:12.5px; }
.chg-pill.up { color:var(--green); background:rgba(46,230,166,.10); }
.chg-pill.down { color:var(--red); background:rgba(255,77,109,.10); }
.spark { display:inline-block; height:22px; vertical-align:middle; }
/* AI signal cards */
.sig-card { position:relative; }
.sig-decision { font-size:22px; font-weight:800; letter-spacing:.5px; }
.sig-LONG, .sig-BUY, .sig-STRONG_BUY { color:var(--green); }
.sig-SHORT, .sig-SELL, .sig-STRONG_SELL { color:var(--red); }
.sig-NEUTRAL, .sig-FLAT { color:var(--t-muted); }
.sig-pill { display:inline-block; padding:3px 10px; border-radius:999px; font-size:11px; font-weight:700; letter-spacing:.5px; border:1px solid; }
.conf-track { height:7px; border-radius:999px; background:var(--graphite); overflow:hidden; margin-top:6px; }
.conf-fill { height:100%; border-radius:999px; background:linear-gradient(90deg,var(--cyan),var(--plasma)); transition:width .5s var(--ease); }
.ind-grid { display:grid; grid-template-columns:repeat(2,1fr); gap:6px 16px; margin-top:10px; }
.ind-grid .ind { display:flex; justify-content:space-between; font-size:12px; padding:4px 0; border-bottom:1px solid var(--border); }
.ind-grid .ind .k { color:var(--t-muted); }
.reason-li { font-size:12px; padding:4px 0 4px 16px; position:relative; color:var(--t-secondary); }
.reason-li::before { content:"▲"; position:absolute; left:0; font-size:8px; color:var(--green); top:6px; }
.reason-li.bad::before { content:"▼"; color:var(--red); }
.regime-tag { font-size:11px; font-weight:700; letter-spacing:.5px; padding:3px 9px; border-radius:7px; background:var(--glass-2); border:1px solid var(--border-strong); }

/* Modal / drawer */
.modal-ov { position:fixed; inset:0; background:rgba(3,5,9,.72); backdrop-filter:blur(7px); -webkit-backdrop-filter:blur(7px);
  z-index:100; display:flex; align-items:center; justify-content:center; padding:20px; animation:fadein .18s var(--ease); }
@keyframes fadein { from{opacity:0} to{opacity:1} }
.modal { width:100%; max-width:500px; max-height:82vh; overflow:auto; animation:popin .22s var(--ease); }
@keyframes popin { from{transform:translateY(12px) scale(.98);opacity:0} to{transform:none;opacity:1} }
.modal .mhead { display:flex; align-items:center; margin-bottom:14px; }
.modal .mhead h3 { margin:0; font-size:16px; }
.modal .x { margin-left:auto; cursor:pointer; color:var(--t-muted); font-size:22px; line-height:1; padding:0 4px; }
.modal .x:hover { color:#fff; }
.clickable { cursor:pointer; }
.clickable:hover { border-color:rgba(54,228,255,.4); }
.clickable .eyebrow::after { content:' ›'; color:var(--cyan); }

.sym-cell { display:flex; align-items:center; gap:9px; }
.coin-ic { width:24px; height:24px; border-radius:50%; display:grid; place-items:center; font-size:10px; font-weight:700;
  background:linear-gradient(135deg, rgba(54,228,255,.25), rgba(135,92,255,.25)); color:#fff; flex:0 0 auto; }