/* ============================================================================
 * tradeStack — Components
 * Cards, stats, pills, buttons, tables — TradingView precision + RunPod polish
 * ========================================================================= */

/* ── cards ─────────────────────────────────────────────────────────────── */

.card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  transition: border-color var(--duration-normal) var(--ease-out);
}
.card--interactive:hover {
  background: var(--bg-surface-raised);
  border-color: var(--border-default);
}
.card--accent::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, var(--accent) 0%, transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  opacity: 0.6;
}

.card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}
.card__title {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-primary);
  letter-spacing: normal;
}
.card__eyebrow {
  font-size: 12px;
  color: var(--text-tertiary);
}
.card__body {
  padding: 16px;
}
.card__body--flush { padding: 0; }
.card__footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12px;
}

/* ── stat display (big number + delta) ─────────────────────────────────── */

.stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat__label {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-tertiary);
  text-transform: none;
  letter-spacing: normal;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.stat__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: normal;
  line-height: 1.15;
  color: var(--text-primary);
}
.stat__value--sm  { font-size: 16px; }
.stat__value--lg  { font-size: 24px; }
.stat__value--xl  { font-size: 28px; }
.stat__delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-xs);
  font-weight: 450;
  width: max-content;
}
.stat__delta--up   { background: var(--up-soft);   color: var(--up-bright); }
.stat__delta--down { background: var(--down-soft); color: var(--down-bright); }
.stat__delta--flat { background: rgba(255,255,255,0.04); color: var(--text-secondary); }
.stat__sub {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ── KPI row (hero on home) ────────────────────────────────────────────── */

.kpi-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.kpi-row .card { padding: 14px 16px; }
.kpi-row .card__body { padding: 0; }

@media (max-width: 1100px) {
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .kpi-row { grid-template-columns: 1fr; }
}

/* ── pill / tag ────────────────────────────────────────────────────────── */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  font-weight: 450;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.04);
  color: var(--text-secondary);
  border: 1px solid transparent;
  line-height: 1.4;
}
.pill--up   { background: var(--up-soft);     color: var(--up-bright);    border-color: rgba(38,166,154,0.25); }
.pill--down { background: var(--down-soft);   color: var(--down-bright);  border-color: rgba(239,83,80,0.25); }
.pill--accent { background: var(--accent-soft); color: var(--accent-hover); border-color: rgba(124,92,255,0.3); }
.pill--info { background: var(--info-soft);   color: #6ca0f6; border-color: rgba(59,130,246,0.25); }
.pill--warn { background: var(--warning-soft); color: var(--warning); border-color: rgba(247,185,85,0.25); }
.pill--solid-accent { background: var(--accent); color: var(--text-inverse); border-color: var(--accent); }
.pill__dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor;
  box-shadow: 0 0 6px currentColor;
}

/* ── badge (small inline marker) ──────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 1px 6px;
  border-radius: var(--radius-xs);
  background: rgba(255,255,255,0.05);
  font-size: 10px;
  font-weight: 450;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ── buttons ───────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 450;
  letter-spacing: -0.005em;
  color: var(--text-primary);
  background: var(--bg-surface-raised);
  border: 1px solid var(--border-default);
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover {
  background: var(--bg-surface-strong);
  border-color: var(--border-strong);
}
.btn:active { transform: translateY(1px); }
.btn--primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-inverse);
}
.btn--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 0 20px var(--accent-glow);
}
.btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-secondary);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.04);
  color: var(--text-primary);
  border-color: transparent;
}
.btn--lg { padding: 11px 18px; font-size: var(--text-md); }
.btn--sm { padding: 5px 10px; font-size: var(--text-xs); }
.btn--block { width: 100%; }

/* ── inputs ────────────────────────────────────────────────────────────── */

.input, .textarea, .select {
  display: block;
  width: 100%;
  padding: 10px 12px;
  background: var(--bg-inset);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: var(--text-md);
  transition: border-color var(--duration-fast) var(--ease-out),
              box-shadow var(--duration-fast) var(--ease-out);
}
.input::placeholder { color: var(--text-muted); }
.input:hover { border-color: var(--border-strong); }
.input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-softer);
  outline: none;
}
.input--lg { padding: 12px 14px; font-size: var(--text-md); }

.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.field__label {
  font-size: var(--text-xs);
  font-weight: 450;
  color: var(--text-secondary);
  text-transform: none;
  letter-spacing: normal;
}
.field__hint {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
}
.field__error {
  font-size: var(--text-xs);
  color: var(--down-bright);
}

/* ── tables (TradingView-dense) ───────────────────────────────────────── */

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.data-table thead th {
  position: sticky;
  top: 0;
  padding: 8px 12px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  text-align: left;
  font-size: 12px;
  font-weight: 400;
  color: var(--text-tertiary);
  white-space: nowrap;
}
.data-table thead th.num { text-align: right; }
.data-table tbody td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
  font-size: 13px;
}
.data-table tbody td.num {
  text-align: right;
  font-family: var(--font-mono);
}
.data-table tbody tr {
  transition: background var(--duration-fast) var(--ease-out);
}
.data-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.015);
}
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table__empty {
  padding: var(--space-10) var(--space-5);
  text-align: center;
  color: var(--text-tertiary);
  font-size: var(--text-sm);
}

/* ── widget grid ──────────────────────────────────────────────────────── */

.grid {
  display: grid;
  gap: var(--space-4);
}
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--two-thirds {
  grid-template-columns: 2fr 1fr;
}
@media (max-width: 960px) {
  .grid--2, .grid--3, .grid--two-thirds { grid-template-columns: 1fr; }
}

/* ── section header (above widget rows) ─────────────────────────────── */

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  margin: 24px 0 12px;
}
.section-header:first-child { margin-top: 0; }
.section-header__title {
  font-size: 15px;
  font-weight: 400;
  letter-spacing: normal;
  color: var(--text-primary);
}
.section-header__subtitle {
  font-size: 12px;
  color: var(--text-tertiary);
  margin-top: 2px;
}
.section-header__actions {
  display: flex;
  gap: var(--space-2);
}

/* ── bot card (home page) ─────────────────────────────────────────────── */

.bot-card {
  display: flex;
  flex-direction: column;
  padding: 14px 16px;
  gap: 12px;
}
.bot-card__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}
.bot-card__title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: normal;
  color: var(--text-primary);
}
.bot-card__icon {
  width: 24px; height: 24px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  background: rgba(var(--gray-base-rgb), 0.15);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 450;
}
.bot-card__icon--up   { color: var(--up-bright); }
.bot-card__icon--down { color: var(--down-bright); }
.bot-card__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border-subtle);
}
.bot-card__metric-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: none;
  letter-spacing: normal;
  margin-bottom: 3px;
}
.bot-card__metric-value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--text-md);
  font-weight: 500;
  color: var(--text-primary);
}

/* ── status dot ────────────────────────────────────────────────────────── */

.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
}
.status-dot--live {
  background: var(--up);
  box-shadow: 0 0 8px var(--up), 0 0 0 3px rgba(38, 166, 154, 0.15);
  animation: live-pulse 2.2s var(--ease-in-out) infinite;
}
.status-dot--idle { background: var(--warning); }
.status-dot--error { background: var(--down); box-shadow: 0 0 8px var(--down); }

/* ── sparkline placeholder (until Plotly embed is wired) ──────────────── */

.sparkline {
  height: 48px;
  width: 100%;
  border-radius: var(--radius-sm);
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0 6px,
      rgba(124,92,255,0.04) 6px 7px
    ),
    linear-gradient(180deg, rgba(124,92,255,0.08), transparent 80%);
}

/* ── toolbar (filters row on dashboard pages) ───────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.toolbar__group {
  display: inline-flex;
  background: var(--bg-inset);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.toolbar__btn {
  padding: 6px 12px;
  font-size: var(--text-xs);
  font-weight: 450;
  color: var(--text-secondary);
  letter-spacing: normal;
  text-transform: none;
  transition: all var(--duration-fast) var(--ease-out);
}
.toolbar__btn:not(:last-child) { border-right: 1px solid var(--border-subtle); }
.toolbar__btn:hover { color: var(--text-primary); background: var(--bg-surface-raised); }
.toolbar__btn[aria-pressed="true"] {
  background: var(--accent-soft);
  color: var(--accent-hover);
}

/* ── skeleton shimmer ─────────────────────────────────────────────────── */
.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--bg-surface-raised);
  border-radius: var(--radius-sm);
}
.skeleton::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
  animation: shimmer 1.6s linear infinite;
}
@keyframes shimmer { to { transform: translateX(100%); } }