/* ==========================================================================
   Optra — terminal
   Three columns on desktop, each scrolling independently inside a fixed
   viewport. Collapses to a single flowing document below 1200px.
   ========================================================================== */

.terminal {
  display: grid;
  grid-template-columns: 19rem minmax(0, 1fr) 23rem;
  align-items: stretch;
  height: 100svh;
  padding-top: var(--nav-h);
}

.panel {
  display: flex;
  flex-direction: column;
  min-height: 0;
  min-width: 0;
  border-right: 1px solid var(--line-faint);
}

.panel--side { border-right: 0; }

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  min-height: 3.25rem;
  padding: 0 var(--s-5);
  border-bottom: 1px solid var(--line-faint);
  flex: none;
}

/* --- Form controls ------------------------------------------------------ */

.field-search {
  position: relative;
  display: flex;
  align-items: center;
}

.field-search svg {
  position: absolute;
  left: 0.8125rem;
  width: 15px;
  height: 15px;
  color: var(--ink-40);
  pointer-events: none;
}

.field-search input {
  width: 100%;
  padding: 0.625rem 0.875rem 0.625rem 2.25rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: var(--wash);
  box-shadow: inset 0 1px 3px rgba(122, 18, 66, 0.22);
  font-size: var(--t-sm);
  color: var(--ink);
  transition: border-color var(--d-2) var(--e-soft), background-color var(--d-2) var(--e-soft);
}

.field-search input::placeholder { color: var(--ink-40); }
.field-search input:focus { outline: none; border-color: var(--ink-40); background: var(--wash-lift); }
.field-search input::-webkit-search-cancel-button { -webkit-appearance: none; }

.field-select {
  width: 100%;
  padding: 0.625rem 2rem 0.625rem 0.875rem;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background-color: var(--wash);
  /* Chevron drawn inline so the control keeps one appearance across engines. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5l5-5' fill='none' stroke='white' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 11px;
  font-size: var(--t-sm);
  color: var(--ink);
  appearance: none;
  cursor: pointer;
  transition: border-color var(--d-2) var(--e-soft), background-color var(--d-2) var(--e-soft);
}

.field-select:hover { background-color: var(--wash-lift); }
.field-select:focus { outline: none; border-color: var(--ink-40); }
.field-select option { color: #b8306f; background: #fff; }

.field-input {
  display: flex;
  align-items: center;
  gap: var(--s-2);
  padding: 0.625rem 0.875rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--wash);
  box-shadow: inset 0 1px 3px rgba(122, 18, 66, 0.22);
  transition: border-color var(--d-2) var(--e-soft), background-color var(--d-2) var(--e-soft);
}

.field-input:focus-within { border-color: var(--ink-40); background: var(--wash-lift); }

.field-input input {
  flex: 1;
  min-width: 0;
  border: 0;
  background: none;
  font-family: var(--font-mono);
  font-size: var(--t-sm);
  color: var(--ink);
}

.field-input input:focus { outline: none; }
.field-input input::placeholder { color: var(--ink-28); font-family: var(--font-mono); }
.field-input input::-webkit-outer-spin-button,
.field-input input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.field-input input[type="number"] { -moz-appearance: textfield; }

.field-input__suffix { font-size: var(--t-xs); color: var(--ink-56); flex: none; }

/* Segmented control */
.seg {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 3px;
  padding: 3px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-soft);
  background: var(--wash);
  box-shadow: inset 0 1px 3px rgba(122, 18, 66, 0.22);
}

.seg--three { grid-template-columns: repeat(3, 1fr); }

.seg__btn {
  padding: 0.5rem 0.5rem;
  border-radius: var(--r-pill);
  font-size: var(--t-xs);
  font-weight: 600;
  color: var(--ink-56);
  transition:
    background-color var(--d-2) var(--e-soft),
    color var(--d-2) var(--e-soft);
}

.seg__btn:hover { color: var(--ink); }
.seg__btn.is-active {
  background: var(--ink);
  color: #c22a7d;
  text-shadow: none;
  box-shadow: var(--shadow-lift);
}

/* --- Instruments -------------------------------------------------------- */

.panel__filters {
  display: grid;
  gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border-bottom: 1px solid var(--line-faint);
  flex: none;
}

.instruments {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.28) transparent;
}

.instruments::-webkit-scrollbar { width: 8px; }
.instruments::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.24);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: content-box;
}

.instrument {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: var(--s-3);
  width: 100%;
  padding: 0.7rem var(--s-5);
  text-align: left;
  border-bottom: 1px solid var(--line-faint);
  transition: background-color var(--d-1) var(--e-soft);
}

.instrument:hover { background: var(--wash); }

.instrument.is-selected { background: var(--wash-lift); }

.instrument.is-selected::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  bottom: 0.55rem;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--ink);
}

.instrument__ticker {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.012em;
  line-height: 1.2;
}

.instrument__name {
  display: block;
  font-size: var(--t-xs);
  color: var(--ink-56);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.instrument__venue {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  color: var(--ink-40);
}

.instruments__empty {
  padding: var(--s-6) var(--s-5);
  color: var(--ink-56);
  font-size: var(--t-sm);
}

/* --- Chart -------------------------------------------------------------- */

.chart__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--s-5);
  padding: var(--s-5) var(--s-6);
  border-bottom: 1px solid var(--line-faint);
  flex: none;
}

.chart__id h2 { line-height: 1; }

.chart__name {
  margin-top: 0.35rem;
  color: var(--ink-56);
  font-size: var(--t-sm);
}

.chart__facts {
  display: flex;
  gap: var(--s-6);
  flex-wrap: wrap;
}

.chart__facts dt { margin-bottom: 0.3rem; }
.chart__facts dd { font-size: var(--t-sm); }

/* Same treatment as the homepage chart: the series sits on the field rather
   than inside a box of its own. */
.chart__canvas {
  flex: 1;
  min-height: 0;
  margin: var(--s-4) var(--s-5) var(--s-5);
  padding: var(--s-3);
  border-radius: var(--r-xl);
  border: 1px solid var(--line-soft);
  background: var(--wash);
  overflow: hidden;
  box-shadow: var(--shadow-panel);
}

/* --- Side column -------------------------------------------------------- */

.panel--side {
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.28) transparent;
}

.panel--side::-webkit-scrollbar { width: 8px; }
.panel--side::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.24);
  border-radius: var(--r-pill);
  border: 2px solid transparent;
  background-clip: content-box;
}

.account-card { flex: none; border-bottom: 1px solid var(--line-faint); }
.account-card__body { padding: var(--s-4) var(--s-5) var(--s-5); }

.account-card__connect { display: grid; gap: var(--s-4); }

.account-card__prompt {
  font-size: var(--t-sm);
  color: var(--ink-72);
}

.account-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--line-faint);
}

.account-row:last-child { border-bottom: 0; }

.account-row__label { font-size: var(--t-xs); color: var(--ink-56); }

.account-row__value {
  font-family: var(--font-mono);
  font-size: var(--t-xs);
  text-align: right;
}

.account-row__value--masked { letter-spacing: 0.1em; color: var(--ink-40); }

.chain-flag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.chain-flag::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

.chain-flag--off { color: var(--ink-40); }

.account-card__warning {
  margin-top: var(--s-4);
  display: grid;
  gap: var(--s-3);
  padding: var(--s-4);
  border-radius: var(--r-md);
  border: 1px solid var(--line-soft);
  background: var(--wash);
  box-shadow: var(--shadow-lift);
  font-size: var(--t-xs);
  color: var(--ink-88);
}

/* --- Order ticket ------------------------------------------------------- */

.ticket {
  display: flex;
  flex-direction: column;
  gap: var(--s-4);
  padding-bottom: var(--s-6);
}

.ticket > .panel__head { margin-bottom: 0; }
.ticket > *:not(.panel__head) { margin-inline: var(--s-5); }

.ticket__row { display: grid; gap: 0.4rem; }

.ticket__label {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-56);
  padding: 0;
}

.ticket__visibility { border: 0; padding: 0; margin-inline: var(--s-5); display: grid; gap: 0.4rem; }

.ticket__hint {
  font-size: var(--t-xs);
  color: var(--ink-56);
  min-height: 2.4em;
}

.ticket__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-4) 0;
  border-top: 1px solid var(--line-faint);
  border-bottom: 1px solid var(--line-faint);
}

.ticket__summary .num { font-size: 1.0625rem; font-weight: 500; }

.ticket__error {
  font-size: var(--t-xs);
  color: var(--ink);
  padding: 0.7rem 0.875rem;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--wash-lift);
  box-shadow: var(--shadow-lift);
}

.ticket__submit { width: calc(100% - var(--s-5) * 2); }

/* --- Collapse ----------------------------------------------------------- */

@media (max-width: 1200px) {
  .body--app { overflow: auto; }

  .terminal {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100svh;
  }

  .panel { border-right: 0; border-bottom: 1px solid var(--line-faint); }

  /* Chart first, then order entry, then the browsable list. */
  .panel--chart { order: 1; }
  .panel--side { order: 2; overflow: visible; }
  .panel--list { order: 3; border-bottom: 0; }

  .chart__canvas { min-height: 58vh; }
  .instruments { max-height: 60vh; flex: none; }
}

@media (max-width: 620px) {
  .chart__head { padding: var(--s-4) var(--gutter); }
  .chart__facts { gap: var(--s-5); }
  .panel__head,
  .panel__filters { padding-inline: var(--gutter); }
  .account-card__body { padding-inline: var(--gutter); }
  .instrument { padding-inline: var(--gutter); }
  .ticket > *:not(.panel__head) { margin-inline: var(--gutter); }
  .ticket__visibility { margin-inline: var(--gutter); }
  .ticket__submit { width: calc(100% - var(--gutter) * 2); }
}