:root {
  --bg: #0b0e11;
  --bg-elev: #12161c;
  --panel: rgba(22, 26, 30, 0.72);
  --panel-solid: #161a1e;
  --border: #2b3139;
  --text: #eaecef;
  --muted: #848e9c;
  --green: #0ecb81;
  --green-dim: rgba(14, 203, 129, 0.12);
  --red: #f6465d;
  --red-dim: rgba(246, 70, 93, 0.12);
  --blue: #3b82f6;
  --orange: #f0b90b;
  --radius: 14px;
  --radius-sm: 8px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(59, 130, 246, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(240, 185, 11, 0.06), transparent 55%),
    var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  min-height: 100vh;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: #60a5fa; }

/* ---- Navbar ---- */
.xc-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 20px;
  background: rgba(11, 14, 17, 0.82);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.xc-brand {
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.3px;
  margin-right: 18px;
  background: linear-gradient(90deg, var(--orange), #ffd75e);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  white-space: nowrap;
}
.xc-nav-links { display: flex; gap: 2px; flex-wrap: wrap; flex: 1; }
.xc-nav-links a {
  color: var(--muted);
  padding: 7px 12px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  transition: all .15s ease;
}
.xc-nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.xc-nav-links a.active { color: var(--text); background: rgba(240,185,11,0.12); }
.xc-nav-right { display: flex; align-items: center; gap: 10px; }

/* ---- Buttons ---- */
.btn {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all .15s ease;
  display: inline-block;
}
.btn:hover { border-color: var(--muted); }
.btn-primary { background: var(--orange); border-color: var(--orange); color: #12161c; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-green { background: var(--green); border-color: var(--green); color: #06201a; }
.btn-red { background: var(--red); border-color: var(--red); color: #2a0810; }
.btn-block { width: 100%; }

/* ---- Panels / glass cards ---- */
.card {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.card.pad0 { padding: 0; overflow: hidden; }
.card-title { font-weight: 700; margin: 0 0 12px; font-size: 15px; }
.card-head { padding: 14px 16px; border-bottom: 1px solid var(--border); font-weight: 700; }

.container-xc { max-width: 1440px; margin: 0 auto; padding: 20px; }

/* ---- Tables ---- */
table.xc-table { width: 100%; border-collapse: collapse; }
.xc-table th {
  text-align: left; color: var(--muted); font-weight: 500;
  font-size: 12px; padding: 10px 12px; border-bottom: 1px solid var(--border);
}
.xc-table td { padding: 11px 12px; border-bottom: 1px solid rgba(43,49,57,0.5); }
.xc-table tr:hover td { background: rgba(255,255,255,0.03); }
.up { color: var(--green); }
.down { color: var(--red); }
.mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; }

/* ---- Forms ---- */
.form-field { margin-bottom: 14px; }
.form-field label { display: block; color: var(--muted); margin-bottom: 6px; font-size: 13px; }
.form-control {
  width: 100%; padding: 10px 12px; background: var(--bg-elev);
  border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text);
  font-size: 14px;
}
.form-control:focus { outline: none; border-color: var(--orange); }
.auth-wrap { max-width: 420px; margin: 60px auto; }
.text-danger { color: var(--red); font-size: 13px; }
.validation-summary-errors ul { margin: 0 0 12px; padding-left: 18px; color: var(--red); }
.field-validation-error { color: var(--red); font-size: 12px; }

/* ---- Trade layout ---- */
.trade-grid {
  display: grid;
  grid-template-columns: 1fr 320px 300px;
  gap: 14px;
  align-items: start;
}
@media (max-width: 1100px) { .trade-grid { grid-template-columns: 1fr; } }

.market-header {
  display: flex; align-items: center; gap: 26px; flex-wrap: wrap;
  padding: 14px 18px; margin-bottom: 14px;
}
.mh-price { font-size: 26px; font-weight: 800; }
.mh-stat { display: flex; flex-direction: column; }
.mh-stat .k { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .5px; }
.mh-stat .v { font-weight: 600; }

#tvchart { height: 520px; width: 100%; border-radius: var(--radius); overflow: hidden; }

/* Order book */
.ob-row { display: grid; grid-template-columns: 1fr 1fr 1fr; font-size: 12.5px; padding: 3px 12px; position: relative; }
.ob-row .q, .ob-row .t { text-align: right; z-index: 1; }
.ob-row .p { z-index: 1; }
.ob-depth { position: absolute; top: 0; right: 0; bottom: 0; opacity: .16; }
.ob-spread { text-align: center; padding: 8px; color: var(--muted); border-block: 1px solid var(--border); font-weight: 600; }
.ob-head { display: grid; grid-template-columns: 1fr 1fr 1fr; font-size: 11px; color: var(--muted); padding: 8px 12px; }
.ob-head .q, .ob-head .t { text-align: right; }

/* Recent trades */
.rt-row { display: grid; grid-template-columns: 1fr 1fr 1fr; font-size: 12.5px; padding: 3px 12px; }
.rt-row .q, .rt-row .t { text-align: right; }

.badge { padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 700; }
.badge-info { background: rgba(59,130,246,.15); color: var(--blue); }
.badge-warn { background: rgba(240,185,11,.15); color: var(--orange); }

.hero { text-align: center; padding: 90px 20px; }
.hero h1 { font-size: 44px; margin: 0 0 12px; }
.hero p { color: var(--muted); font-size: 18px; max-width: 620px; margin: 0 auto 26px; }
.muted { color: var(--muted); }
.placeholder-note { padding: 60px; text-align: center; color: var(--muted); }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }

/* Notification bell */
.bell-wrap { position: relative; }
.bell { font-size: 18px; cursor: pointer; position: relative; padding: 4px 8px; }
.notif-badge {
  position: absolute; top: -2px; right: -2px; background: var(--red); color: #fff;
  font-size: 10px; font-weight: 700; border-radius: 10px; padding: 1px 5px; line-height: 1.4;
}
.notif-drop {
  display: none; position: absolute; top: 34px; right: 0; width: 320px; max-height: 420px; overflow-y: auto;
  background: var(--panel-solid); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: 0 12px 40px rgba(0,0,0,.5); z-index: 60;
}
.notif-item { padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.notif-item.unread { background: rgba(59,130,246,.08); }
.notif-item strong { display: block; margin-bottom: 2px; }
.notif-all { display: block; text-align: center; padding: 10px; font-weight: 600; }
.rank-1 { color: var(--orange); font-weight: 800; }
.rank-2, .rank-3 { color: var(--text); font-weight: 700; }
.ach-card { display: flex; gap: 14px; align-items: center; }
.ach-icon { font-size: 34px; width: 46px; text-align: center; }
.ach-locked { opacity: .4; filter: grayscale(1); }

/* ---- AJAX form / page-update loader ---- */
#xc-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--orange), var(--blue));
  z-index: 9999; transition: width .25s ease, opacity .3s ease;
  opacity: 0; pointer-events: none;
}
#xc-progress.active { opacity: 1; }
.xc-busy { position: relative; opacity: .55; pointer-events: none; transition: opacity .15s ease; }
.xc-busy::after {
  content: ""; position: absolute; inset: 0; display: flex;
  background: rgba(11, 14, 17, 0.25); border-radius: inherit;
}
.xc-spinner {
  position: absolute; top: 50%; left: 50%; width: 22px; height: 22px;
  margin: -11px 0 0 -11px; border-radius: 50%;
  border: 2px solid rgba(234, 236, 239, 0.25); border-top-color: var(--orange);
  animation: xc-spin .6s linear infinite; z-index: 1;
}
@keyframes xc-spin { to { transform: rotate(360deg); } }