/* ------------------------------------------------------------------
   TradeBot dashboard — dark real-time monitoring theme
   Tokens: slate background, amber primary, semantic green/red for P&L
------------------------------------------------------------------- */
:root {
  --color-background: #0F172A;
  --color-surface: #16203A;
  --color-muted: #272F42;
  --color-border: #334155;
  --color-foreground: #F8FAFC;
  --color-secondary-text: #94A3B8;
  --color-primary: #F59E0B;
  --color-on-primary: #0F172A;
  --color-accent: #8B5CF6;
  --color-success: #10B981;
  --color-destructive: #EF4444;
  --color-ring: #F59E0B;

  --space-1: 4px;  --space-2: 8px;  --space-3: 12px;
  --space-4: 16px; --space-5: 24px; --space-6: 32px;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 1px 2px rgb(0 0 0 / .25), 0 4px 16px rgb(0 0 0 / .18);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

/* The hidden attribute must always win, even over class rules that set display
   (e.g. .modal-backdrop { display: grid }), otherwise dialogs can never close. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  min-height: 100dvh;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
}

h1, h2, h3, p, dl, dd, dt, ul { margin: 0; }
ul { padding: 0; list-style: none; }
button { font-family: inherit; cursor: pointer; }
input { font-family: inherit; }

:focus-visible {
  outline: 2px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* ---- Mode banner -------------------------------------------------- */
.mode-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-weight: 600;
  font-size: .875rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  background: var(--color-muted);
  color: var(--color-foreground);
}
.mode-banner--test { background: var(--color-primary); color: var(--color-on-primary); }
.mode-banner--live { background: var(--color-destructive); color: #fff; }
.mode-banner__dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .35; }
}

/* ---- Top bar ------------------------------------------------------ */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-border);
}
.topbar__brand { display: flex; align-items: center; gap: var(--space-3); }
.topbar__logo {
  width: 34px; height: 34px;
  padding: 6px;
  color: var(--color-on-primary);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
}
.topbar__brand h1 { font-size: 1.125rem; font-weight: 700; letter-spacing: -.01em; }
.topbar__subtitle { font-size: .8125rem; color: var(--color-secondary-text); }
.topbar__actions { display: flex; align-items: center; gap: var(--space-3); }

.conn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: .8125rem;
  color: var(--color-secondary-text);
}
.conn__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-secondary-text); }
.conn--on .conn__dot { background: var(--color-success); animation: pulse 2.5s ease-in-out infinite; }
.conn--on { color: var(--color-success); }

/* ---- Buttons ------------------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-size: .875rem;
  font-weight: 600;
  transition: background-color .18s ease, border-color .18s ease, transform .12s ease;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn svg { width: 16px; height: 16px; }
.btn--primary { background: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover:not(:disabled) { background: #FBBF24; }
.btn--secondary { background: var(--color-muted); color: var(--color-foreground); border-color: var(--color-border); }
.btn--secondary:hover:not(:disabled) { background: #303a52; }
.btn--ghost { background: transparent; color: var(--color-foreground); border-color: var(--color-border); }
.btn--ghost:hover:not(:disabled) { background: var(--color-muted); }

/* ---- Layout -------------------------------------------------------- */
.layout {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-5);
  display: grid;
  gap: var(--space-4);
}
.columns { display: grid; grid-template-columns: minmax(0, 2fr) minmax(320px, 1fr); gap: var(--space-4); align-items: start; }
.columns__main, .columns__side { display: grid; gap: var(--space-4); min-width: 0; }

/* ---- Stat cards ---------------------------------------------------- */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-3);
}
.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow);
}
.stat__label {
  font-size: .75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-secondary-text);
}
.stat__value {
  font-size: 1.375rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  margin-top: var(--space-1);
}
.stat__hint { font-size: .75rem; color: var(--color-secondary-text); margin-top: 2px; }

/* ---- Cards ---------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4);
  box-shadow: var(--shadow);
  min-width: 0;
}
.card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.card__head h2 { font-size: .9375rem; font-weight: 600; }
.card__meta { font-size: .8125rem; color: var(--color-secondary-text); font-variant-numeric: tabular-nums; }
.card__subhead {
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-secondary-text);
  margin: var(--space-4) 0 var(--space-2);
}

.tag {
  font-size: .6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-secondary-text);
}
.tag--test { color: var(--color-primary); border-color: var(--color-primary); }
.tag--live { color: var(--color-destructive); border-color: var(--color-destructive); }

/* ---- Chart ----------------------------------------------------------- */
.chart-wrap { position: relative; height: 280px; }

/* ---- Tables ----------------------------------------------------------- */
.table-wrap { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: .875rem; }
.table th {
  text-align: right;
  font-size: .6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--color-secondary-text);
  padding: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}
.table th:first-child, .table td:first-child { text-align: left; }
.table td {
  padding: var(--space-2);
  text-align: right;
  font-variant-numeric: tabular-nums;
  border-bottom: 1px solid color-mix(in srgb, var(--color-border) 45%, transparent);
}
.table tr:last-child td { border-bottom: none; }
.symbol { font-weight: 600; }
.symbol small {
  display: block;
  font-size: .6875rem;
  font-weight: 500;
  color: var(--color-secondary-text);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.pos { color: var(--color-success); }
.neg { color: var(--color-destructive); }

/* ---- Market watch ------------------------------------------------------ */
.watch {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-2);
}
.watch__item {
  background: var(--color-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
  transition: border-color .3s ease;
}
.watch__item.flash-up { border-color: var(--color-success); }
.watch__item.flash-down { border-color: var(--color-destructive); }
.watch__symbol { font-size: .75rem; font-weight: 600; color: var(--color-secondary-text); }
.watch__price { font-size: .9375rem; font-weight: 600; font-variant-numeric: tabular-nums; }

/* ---- Wallet ------------------------------------------------------------- */
.wallet-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.wallet-summary > div {
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}
.wallet-summary dt { font-size: .6875rem; text-transform: uppercase; letter-spacing: .05em; color: var(--color-secondary-text); }
.wallet-summary dd { font-size: 1.0625rem; font-weight: 700; font-variant-numeric: tabular-nums; }

.field-row {
  display: flex;
  align-items: flex-end;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
.field { flex: 1; display: grid; gap: var(--space-1); }
.field span { font-size: .75rem; font-weight: 500; color: var(--color-secondary-text); }
.field input {
  width: 100%;
  min-height: 44px;
  padding: 0 var(--space-3);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-foreground);
  font-size: .9375rem;
  font-variant-numeric: tabular-nums;
  transition: border-color .18s ease;
}
.field input:hover { border-color: #46587a; }
.field input:focus { border-color: var(--color-primary); outline: none; }

.auto-withdraw {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}
@media (max-width: 480px) {
  .auto-withdraw { grid-template-columns: 1fr; }
}

.hint { font-size: .75rem; color: var(--color-secondary-text); margin-bottom: var(--space-2); }
.hint--active { color: var(--color-primary); }

.ledger { display: grid; gap: var(--space-2); max-height: 200px; overflow-y: auto; }
.ledger__item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2);
  font-size: .8125rem;
  padding: var(--space-2) var(--space-3);
  background: var(--color-muted);
  border-radius: var(--radius-sm);
}
.ledger__meta { color: var(--color-secondary-text); font-size: .6875rem; display: block; }
.ledger__amount { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* ---- Tabs + feed ----------------------------------------------------------- */
.tabs { display: inline-flex; background: var(--color-muted); border-radius: var(--radius-sm); padding: 3px; }
.tabs__tab {
  border: none;
  background: transparent;
  color: var(--color-secondary-text);
  font-size: .8125rem;
  font-weight: 600;
  padding: 6px 14px;
  min-height: 32px;
  border-radius: 5px;
  transition: background-color .18s ease, color .18s ease;
}
.tabs__tab:hover { color: var(--color-foreground); }
.tabs__tab.is-active { background: var(--color-surface); color: var(--color-foreground); }

.card--grow .feed { max-height: 520px; overflow-y: auto; }
.feed { display: grid; gap: var(--space-2); }
.feed__item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-3);
  align-items: start;
  padding: var(--space-2) var(--space-3);
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  font-size: .8125rem;
  animation: slide-in .25s ease;
}
@keyframes slide-in {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: none; }
}
.feed__badge {
  font-size: .625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 3px 8px;
  border-radius: 999px;
  margin-top: 2px;
}
.feed__badge--buy { background: color-mix(in srgb, var(--color-success) 18%, transparent); color: var(--color-success); }
.feed__badge--sell { background: color-mix(in srgb, var(--color-destructive) 18%, transparent); color: var(--color-destructive); }
.feed__badge--hold { background: color-mix(in srgb, var(--color-secondary-text) 18%, transparent); color: var(--color-secondary-text); }
.feed__body strong { font-weight: 600; }
.feed__reason { color: var(--color-secondary-text); font-size: .75rem; }
.feed__time { color: var(--color-secondary-text); font-size: .6875rem; white-space: nowrap; font-variant-numeric: tabular-nums; }

.empty { color: var(--color-secondary-text); font-size: .8125rem; padding: var(--space-3) 0; text-align: center; }

/* ---- Toasts ----------------------------------------------------------------- */
.toasts {
  position: fixed;
  bottom: var(--space-4);
  right: var(--space-4);
  display: grid;
  gap: var(--space-2);
  z-index: 1000;
  max-width: min(360px, calc(100vw - 32px));
}
.toast {
  background: var(--color-muted);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: .875rem;
  box-shadow: var(--shadow);
  animation: slide-in .25s ease;
}
.toast--success { border-left-color: var(--color-success); }
.toast--error { border-left-color: var(--color-destructive); }

/* ---- Settings modal -------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgb(2 6 23 / .6);
  backdrop-filter: blur(2px);
  display: grid;
  place-items: center;
  padding: var(--space-4);
  z-index: 900;
}
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-5);
  width: 100%;
  max-width: 620px;
  max-height: calc(100dvh - 32px);
  overflow-y: auto;
  animation: slide-in .25s ease;
}
.modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-2);
}
.modal__head h2 { font-size: 1.0625rem; font-weight: 700; }
.modal__close {
  background: transparent;
  border: none;
  color: var(--color-secondary-text);
  min-width: 44px; min-height: 44px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  transition: background-color .18s ease, color .18s ease;
}
.modal__close:hover { background: var(--color-muted); color: var(--color-foreground); }
.modal__close svg { width: 18px; height: 18px; }
.modal .field { margin-bottom: var(--space-3); }

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-2) var(--space-3);
  margin-bottom: var(--space-2);
}
.field--checkbox {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 44px;
}
.field--checkbox input {
  width: 20px; height: 20px;
  min-height: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.modal__actions { display: flex; gap: var(--space-2); margin-top: var(--space-4); }

.danger-zone {
  margin-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-3);
}
.btn--danger {
  background: transparent;
  color: var(--color-destructive);
  border-color: var(--color-destructive);
}
.btn--danger:hover:not(:disabled) { background: color-mix(in srgb, var(--color-destructive) 14%, transparent); }

/* ---- Simulation ------------------------------------------------------------------ */
.sim-progress { padding: var(--space-6) var(--space-2); text-align: center; }
.sim-progress__bar {
  height: 8px;
  background: var(--color-muted);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.sim-progress__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width .3s ease;
}

.sim-summary { font-size: .9375rem; margin-bottom: var(--space-3); }

.sim-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.sim-stats > div {
  background: var(--color-muted);
  border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3);
}
.sim-stats dt {
  font-size: .6875rem;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--color-secondary-text);
}
.sim-stats dd { font-size: 1rem; font-weight: 700; font-variant-numeric: tabular-nums; }

.chart-wrap--sim { height: 220px; }

/* ---- Login page ---------------------------------------------------------------- */
.login-page { display: grid; place-items: center; padding: var(--space-4); }
.login { width: 100%; max-width: 380px; }
.login__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--space-6);
  text-align: center;
}
.login__logo {
  width: 48px; height: 48px;
  padding: 10px;
  color: var(--color-on-primary);
  background: var(--color-primary);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}
.login__card h1 { font-size: 1.375rem; font-weight: 700; }
.login__subtitle { color: var(--color-secondary-text); font-size: .875rem; margin: var(--space-2) 0 var(--space-5); }
.login__card .field { text-align: left; margin-bottom: var(--space-3); }
.login__error { color: var(--color-destructive); font-size: .8125rem; margin-bottom: var(--space-3); }
.login__submit { width: 100%; }

/* ---- Responsive --------------------------------------------------------------- */
@media (max-width: 1024px) {
  .columns { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .layout { padding: var(--space-3); }
  .topbar { padding: var(--space-3); flex-wrap: wrap; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .chart-wrap { height: 220px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}