:root {
  --bg: #14161f;
  --panel: #1e2130;
  --panel2: #262a3d;
  --line: #333850;
  --text: #e8eaf2;
  --muted: #8b90a8;
  --ok: #34d399;
  --dup: #fbbf24;
  --miss: #ef4444;
  --elixir: #e879f9;
  --dark: #8b5cf6;
  --builder: #22d3ee;
  --super: #f59e0b;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.4 system-ui, "Segoe UI", sans-serif;
}

button { font: inherit; cursor: pointer; }

/* ---------- вход ---------- */

#login { display: grid; place-items: center; min-height: 100vh; padding: 16px; }

#login-form {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 28px;
  width: min(360px, 100%);
  text-align: center;
}

#login h1 { margin: 0 0 4px; font-size: 22px; }
#login p { color: var(--muted); margin: 0 0 18px; }

#nick, #login button {
  width: 100%;
  padding: 11px 14px;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  font: inherit;
}

#login button {
  margin-top: 10px;
  background: var(--ok);
  color: #06281c;
  border: 0;
  font-weight: 600;
}

/* ---------- каркас ---------- */

header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 30;
}

.spacer { flex: 1; }
#me-nick { font-weight: 600; }

.dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 6px var(--ok);
  vertical-align: middle;
}

.online { color: var(--muted); font-size: 13px; white-space: nowrap; }

nav { display: flex; gap: 6px; }

.tab {
  background: transparent;
  border: 1px solid transparent;
  color: var(--muted);
  padding: 7px 13px;
  border-radius: 8px;
}

.tab.active { background: var(--panel2); border-color: var(--line); color: var(--text); }
#trade-count { color: var(--ok); font-weight: 700; }

.link { background: none; border: 0; color: var(--muted); text-decoration: underline; }

/* ---------- таблица ---------- */

.scroller { overflow: auto; max-height: calc(100vh - 47px); }

#grid { border-collapse: separate; border-spacing: 0; }

#grid th, #grid td {
  border-bottom: 1px solid var(--line);
  text-align: center;
  background: var(--bg);
}

#grid thead th { position: sticky; background: var(--panel); z-index: 10; }
#grid tr.cats th { top: 0; height: 26px; font-size: 12px; letter-spacing: .04em; }
#grid tr.icons th { top: 26px; padding: 3px; }
#grid tr.icons img { width: 44px; height: 44px; object-fit: contain; display: block; }

#grid .nick, #grid .corner {
  position: sticky;
  left: 0;
  z-index: 20;
  background: var(--panel);
  text-align: left;
  padding: 6px 10px;
  min-width: 150px;
  border-right: 1px solid var(--line);
}

#grid .corner { z-index: 40; top: 0; }
#grid .nick small { display: block; color: var(--muted); font-size: 11px; font-weight: 400; }
#grid tr.me .nick { box-shadow: inset 3px 0 0 var(--ok); }
#grid tr.me td { background: #1a2030; }

#grid td { min-width: 50px; font-variant-numeric: tabular-nums; }
#grid td.n0 { color: #5a2020; background-image: linear-gradient(transparent, transparent); }
#grid td.n0 .v { color: var(--miss); opacity: .5; }
#grid td.n1 .v { color: var(--ok); }
#grid td.n2 .v { color: var(--dup); font-weight: 700; }

.v { font-size: 15px; }

.stepper { display: flex; align-items: center; justify-content: center; gap: 2px; }

.stepper button {
  width: 20px;
  height: 22px;
  border-radius: 5px;
  border: 1px solid var(--line);
  background: var(--panel2);
  color: var(--text);
  line-height: 1;
  padding: 0;
}

.stepper button:hover { background: var(--line); }
.stepper .v { min-width: 16px; }

/* цветные рамки категорий */
[data-cat="elixir"] { --c: var(--elixir); }
[data-cat="dark"] { --c: var(--dark); }
[data-cat="builder"] { --c: var(--builder); }
[data-cat="super"] { --c: var(--super); }

#grid tr.cats th[data-cat] { color: var(--c); background: color-mix(in srgb, var(--c) 12%, var(--panel)); }
#grid .cat-start { border-left: 2px solid var(--c); }
#grid .cat-end { border-right: 2px solid var(--c); }

/* ---------- мои карты ---------- */

.cat-title { color: var(--c); }

.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 8px;
  padding: 0 14px 8px;
}

.tile {
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--c);
  border-radius: 10px;
  padding: 6px 4px 5px;
  text-align: center;
}

.tile img { width: 56px; height: 56px; object-fit: contain; }
.tile.n0 { opacity: .55; }
.tile.n0 .v { color: var(--miss); }
.tile.n1 .v { color: var(--ok); }
.tile.n2 .v { color: var(--dup); font-weight: 700; }
.tile .stepper button { width: 26px; height: 24px; }

/* ---------- обмены ---------- */

.filter { display: flex; gap: 18px; padding: 14px; color: var(--muted); }
.filter label { display: flex; align-items: center; gap: 6px; cursor: pointer; }

.trades {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 12px;
  padding: 0 14px 14px;
}

.trade {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 4px solid var(--c);
  border-radius: 12px;
  padding: 12px;
}

.trade .row { display: flex; align-items: center; justify-content: center; gap: 10px; }
.trade .side { text-align: center; width: 108px; }
.trade .side img { width: 76px; height: 76px; object-fit: contain; }
.trade .side b { display: block; font-size: 13px; margin-top: 2px; }
.trade .side span { display: block; font-size: 11px; color: var(--muted); }
.trade .arrow { color: var(--muted); font-size: 22px; }

.trade button {
  margin-top: 10px;
  width: 100%;
  padding: 8px;
  border-radius: 8px;
  border: 0;
  background: var(--ok);
  color: #06281c;
  font-weight: 600;
}

.trade button[disabled] { background: var(--panel2); color: var(--muted); cursor: default; }

.empty { padding: 30px 14px; color: var(--muted); }

h2 { font-size: 14px; color: var(--muted); padding: 0 14px; margin: 18px 0 8px; font-weight: 600; }

.recent { padding: 0 14px 30px; color: var(--muted); font-size: 13px; }
.recent div { display: flex; align-items: center; gap: 6px; padding: 3px 0; }
.recent img { width: 26px; height: 26px; object-fit: contain; }

/* ---------- телефон ---------- */

@media (max-width: 640px) {
  body { font-size: 14px; }
  header { padding: 6px 10px; gap: 6px; }
  .tab { padding: 6px 9px; }
  #grid tr.icons img { width: 34px; height: 34px; }
  #grid .nick, #grid .corner { min-width: 106px; padding: 5px 7px; font-size: 13px; }
  #grid td { min-width: 40px; }
  .stepper button { width: 18px; height: 20px; }
  .trades { grid-template-columns: 1fr; }
}

/* ---------- тост ---------- */

#toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  background: var(--panel2);
  border: 1px solid var(--line);
  padding: 10px 16px;
  border-radius: 9px;
  z-index: 100;
}