:root {
  --bg: #1B232C;
  --surface: #232D38;
  --surface-2: #2A3642;
  --line: #33404D;
  --text: #E4E9EE;
  --muted: #93A1AF;
  --profit: #4FB38A;
  --loss: #E0685A;
  --amber: #E3A93B;
  --info: #7BA7D9;
  --lamp-off: #2A3642;
  --lamp-ok-bg: #1F3B33;
  --lamp-warn-bg: #45381C;
  --lamp-stop-bg: #4A2521;
  --lamp-info-bg: #22344A;
  --focus: #9CC3F0;
  --on-info: #0F1C29;
  --content: 1200px;
  --radius-s: 4px;
  --radius-m: 8px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #EEF1F4;
    --surface: #FFFFFF;
    --surface-2: #F5F7F9;
    --line: #D5DCE3;
    --text: #1C2630;
    --muted: #5B6875;
    --profit: #1F8A5E;
    --loss: #C2412F;
    --amber: #9A6400;
    --info: #2F6DB0;
    --lamp-off: #E3E8ED;
    --lamp-ok-bg: #D9F0E5;
    --lamp-warn-bg: #FBEBC9;
    --lamp-stop-bg: #F8D9D4;
    --lamp-info-bg: #DCE8F6;
    --focus: #2F6DB0;
    --on-info: #FFFFFF;
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html, body { margin: 0; background: var(--bg); color: var(--text); }

body {
  font: 15px/1.45 ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

button, input, textarea, select { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

.num { text-align: right; white-space: nowrap; }
.pos { color: var(--profit); }
.neg { color: var(--loss); }
.muted { color: var(--muted); }

/* ---------------------------------------------------------------- üst bar */
.top {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 12px max(20px, calc((100% - var(--content)) / 2)); border-bottom: 1px solid var(--line); background: var(--surface);
  position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 650; font-size: 16px; letter-spacing: -0.01em; }
.tabs { display: flex; gap: 4px; }
.tabs button {
  background: none; border: 0; padding: 6px 12px; border-radius: var(--radius-s);
  color: var(--muted); cursor: pointer; font-weight: 550;
}
.tabs button[aria-selected="true"] { color: var(--text); background: var(--surface-2); }

/* ---------------------------------------------------------------- uyarı lambaları (imza öğe) */
.annunciator {
  display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 6px;
  padding: 12px max(20px, calc((100% - var(--content)) / 2)); background: var(--surface); border-bottom: 1px solid var(--line);
}
.lamp {
  border-radius: var(--radius-s); padding: 8px 10px 9px; min-height: 58px;
  background: var(--lamp-off); border: 1px solid transparent;
  display: flex; flex-direction: column; justify-content: space-between; gap: 2px;
}
.lamp .lk { font-size: 12px; color: var(--muted); }
.lamp .lv { font-weight: 650; font-size: 15px; line-height: 1.2; overflow-wrap: anywhere; }
.lamp.ok { background: var(--lamp-ok-bg); border-color: color-mix(in srgb, var(--profit) 35%, transparent); }
.lamp.ok .lv { color: var(--profit); }
.lamp.warn { background: var(--lamp-warn-bg); border-color: color-mix(in srgb, var(--amber) 45%, transparent); }
.lamp.warn .lv { color: var(--amber); }
.lamp.stop { background: var(--lamp-stop-bg); border-color: color-mix(in srgb, var(--loss) 55%, transparent); }
.lamp.stop .lv { color: var(--loss); }
.lamp.info { background: var(--lamp-info-bg); border-color: color-mix(in srgb, var(--info) 35%, transparent); }
.lamp.info .lv { color: var(--info); }
.lamp.stop.blink { animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { border-color: var(--loss); } }
@media (prefers-reduced-motion: reduce) { .lamp.stop.blink { animation: none; } }

/* ---------------------------------------------------------------- içerik */
main { max-width: calc(var(--content) + 40px); margin: 0 auto; padding: 20px; }
.tab[hidden] { display: none; }

.summary {
  display: flex; flex-wrap: wrap; align-items: flex-end; gap: 12px 32px; margin-bottom: 16px;
}
.equity { display: flex; align-items: baseline; gap: 8px; }
.equity .k { color: var(--muted); }
.equity .big { font-size: 34px; font-weight: 680; letter-spacing: -0.02em; }
.equity .unit { color: var(--muted); }
.today { color: var(--muted); padding-bottom: 6px; }
.today strong { font-weight: 650; }
.controls { margin-left: auto; display: flex; gap: 8px; }

.btn {
  border: 1px solid var(--line); background: var(--surface); padding: 8px 14px;
  border-radius: var(--radius-s); cursor: pointer; font-weight: 560; white-space: nowrap;
}
.btn:hover { background: var(--surface-2); }
.btn.primary { background: var(--info); border-color: var(--info); color: var(--on-info); }
.btn.primary:hover { filter: brightness(1.08); background: var(--info); }
.btn.warn { border-color: var(--amber); color: var(--amber); }
.btn.danger { border-color: var(--loss); color: var(--loss); }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.5; cursor: default; }

.alert {
  border-left: 3px solid var(--amber); background: var(--surface); padding: 10px 14px;
  border-radius: 0 var(--radius-s) var(--radius-s) 0; margin-bottom: 16px; font-size: 14px;
}

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-m); }
.panel + .panel, .panel + h2, .grid2 + h2 { margin-top: 24px; }
h2 { font-size: 15px; font-weight: 650; margin: 0 0 10px; }

/* ---------------------------------------------------------------- tablolar */
table { width: 100%; border-collapse: collapse; }
th, td { padding: 9px 12px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { text-align: left; font-size: 13px; font-weight: 550; color: var(--muted); }
tbody tr:last-child td { border-bottom: 0; }
td.sym { font-weight: 650; white-space: nowrap; }
td.note { color: var(--muted); font-size: 13px; max-width: 340px; }

tr.st-PENDING td:first-child { box-shadow: inset 3px 0 0 var(--amber); }
tr.st-OPEN td:first-child { box-shadow: inset 3px 0 0 var(--info); }
tr.st-OPEN, tr.st-PENDING { background: var(--surface-2); }

.status { font-weight: 560; white-space: nowrap; }
.status.PENDING { color: var(--amber); }
.status.OPEN { color: var(--info); }
.status.IDLE { color: var(--muted); font-weight: 450; }
.tag {
  display: inline-block; font-size: 12px; padding: 1px 6px; border-radius: var(--radius-s);
  background: var(--lamp-ok-bg); color: var(--profit); margin-left: 6px; font-weight: 560;
}

/* ---------------------------------------------------------------- geçmiş */
.stats { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: var(--radius-m); overflow: hidden; margin-bottom: 16px; }
.stat { background: var(--surface); padding: 12px 14px; }
.stat .k { font-size: 13px; color: var(--muted); }
.stat .v { font-size: 22px; font-weight: 650; letter-spacing: -0.01em; }

.chart { padding: 14px 14px 8px; margin-bottom: 24px; }
table.trades td:first-child { white-space: nowrap; }
.chart svg { display: block; width: 100%; height: 200px; }
.chart .axis { stroke: var(--line); stroke-width: 1; }
.chart .zero { stroke: var(--muted); stroke-dasharray: 3 3; stroke-width: 1; }
.chart .line { fill: none; stroke: var(--info); stroke-width: 2; stroke-linejoin: round; }
.chart .dot-w { fill: var(--profit); }
.chart .dot-l { fill: var(--loss); }
.chart text { fill: var(--muted); font-size: 11px; }
.empty { color: var(--muted); padding: 24px 14px; text-align: center; }

.grid2 { display: grid; grid-template-columns: 3fr 2fr; gap: 16px; align-items: start; }
.scroll { max-height: 520px; overflow: auto; }
.log { list-style: none; margin: 0; padding: 0; font-size: 13px; }
.log li { padding: 8px 12px; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: auto 1fr; gap: 2px 10px; }
.log li:last-child { border-bottom: 0; }
.log .t { color: var(--muted); white-space: nowrap; }
.log .a { font-weight: 600; }
.log .d { grid-column: 2; color: var(--muted); overflow-wrap: anywhere; }

/* ---------------------------------------------------------------- ayarlar */
.settings { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
fieldset { border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--surface); margin: 0; padding: 12px 16px 16px; }
legend { font-weight: 650; padding: 0 6px; }
.field { display: grid; grid-template-columns: 1fr 120px; gap: 4px 12px; align-items: center; padding: 7px 0; border-bottom: 1px solid var(--line); }
.field:last-child { border-bottom: 0; }
.field label { font-size: 14px; }
.field .help { grid-column: 1 / -1; font-size: 12px; color: var(--muted); margin-top: -2px; }
.field input {
  width: 100%; padding: 6px 8px; text-align: right; background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--radius-s);
}
.field input.changed { border-color: var(--amber); }
textarea {
  width: 100%; min-height: 110px; padding: 10px; background: var(--bg);
  border: 1px solid var(--line); border-radius: var(--radius-s); resize: vertical;
}
.actions-row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 16px; }
.note-text { color: var(--muted); font-size: 13px; }
.wide { grid-column: 1 / -1; }
.settings-extra { margin-top: 24px; }
fieldset .note-text { margin: 4px 0 10px; }

/* ---------------------------------------------------------------- dialog, toast */
dialog {
  border: 1px solid var(--line); border-radius: var(--radius-m); background: var(--surface); color: var(--text);
  padding: 20px; max-width: 420px; width: calc(100% - 32px);
}
dialog::backdrop { background: rgba(10, 14, 18, 0.6); }
dialog h3 { margin: 0 0 8px; font-size: 17px; }
dialog p { margin: 0 0 14px; color: var(--muted); }
dialog input { width: 100%; padding: 8px 10px; margin-bottom: 14px; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-s); }
dialog .row { display: flex; justify-content: flex-end; gap: 8px; }

.toast {
  position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: var(--radius-s);
  font-weight: 560; max-width: calc(100% - 32px); z-index: 20;
}
.toast.err { background: var(--loss); color: #fff; }

/* ---------------------------------------------------------------- giriş */
.login-wrap { min-height: 100vh; display: grid; place-items: center; padding: 20px; }
.login { width: 100%; max-width: 360px; }
.login .lamps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin-bottom: 20px; }
.login .lamps span { height: 10px; border-radius: 2px; background: var(--lamp-off); }
.login .lamps span:nth-child(1) { background: var(--profit); }
.login .lamps span:nth-child(2) { background: var(--amber); }
.login h1 { font-size: 22px; margin: 0 0 4px; letter-spacing: -0.01em; }
.login p { margin: 0 0 20px; color: var(--muted); }
.login label { display: block; font-size: 14px; margin: 12px 0 6px; }
.login input { width: 100%; padding: 10px 12px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-s); }
.login .btn { width: 100%; margin-top: 18px; padding: 11px; }
.login .err { color: var(--loss); font-size: 14px; margin-top: 12px; min-height: 20px; }

/* ---------------------------------------------------------------- mobil */
@media (max-width: 900px) {
  .annunciator { grid-template-columns: repeat(3, minmax(0, 1fr)); padding: 10px 16px; }
  main { padding: 16px; }
  .grid2, .settings { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats .stat:last-child { grid-column: 1 / -1; }
}

@media (max-width: 640px) {
  .top { padding: 10px 16px; flex-wrap: wrap; }
  .tabs { width: 100%; }
  .tabs button { flex: 1; }
  .lamp { min-height: 52px; padding: 6px 8px; }
  .lamp .lv { font-size: 14px; }
  .equity .big { font-size: 28px; }
  .controls { margin-left: 0; width: 100%; }
  .controls .btn { flex: 1; font-size: 14px; padding: 10px 8px; }

  table.coins thead, table.trades thead { display: none; }
  table.coins tr, table.trades tr { display: grid; grid-template-columns: 1fr 1fr; padding: 10px 12px; border-bottom: 1px solid var(--line); gap: 2px 12px; }
  table.coins td, table.trades td { border: 0; padding: 2px 0; text-align: left; }
  table.coins td::before, table.trades td::before { content: attr(data-label); display: block; font-size: 12px; color: var(--muted); }
  table.coins td.sym, table.trades td.sym { font-size: 16px; }
  table.coins td.sym::before, table.trades td.sym::before, table.coins td.act::before { content: none; }
  table.coins td.note, table.coins td.act { grid-column: 1 / -1; max-width: none; }
  table.coins td.empty-cell { display: none; }
  tr.st-OPEN td:first-child, tr.st-PENDING td:first-child { box-shadow: none; }
  tr.st-PENDING { box-shadow: inset 3px 0 0 var(--amber); }
  tr.st-OPEN { box-shadow: inset 3px 0 0 var(--info); }
  .field { grid-template-columns: 1fr 100px; }

  /* izlenen (boşta) coinler: iki satırlık sade satır */
  table.coins tr.st-IDLE { grid-template-columns: 1fr auto; padding: 8px 12px; }
  table.coins tr.st-IDLE td::before { content: none; }
  table.coins tr.st-IDLE td.num { text-align: right; }
  table.coins tr.st-IDLE td.sym { font-size: 15px; }
  table.coins tr.st-IDLE td.note { font-size: 13px; }
  table.coins tr.st-IDLE td.note:empty, table.coins tr.st-IDLE td.act { display: none; }
}