/* THE CONTROL ROOM — shared component styles (widgets, buttons, panels,
   annunciators, modals). Grows with the UI phases. */

/* --- Buttons --------------------------------------------------------------- */

.btn {
  background: var(--bg-raised);
  color: var(--ink);
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  padding: 5px 12px;
  font-size: calc(13.5px * var(--fs, 1));
  cursor: pointer;
  transition: background 0.12s ease, border-color 0.12s ease;
}
.btn:hover { background: var(--hairline-soft); border-color: var(--ink-faint); }
.btn:disabled { opacity: 0.45; cursor: default; }
.btn.primary { border-color: var(--phosphor); color: var(--phosphor); }
.btn.primary:hover { background: var(--phosphor-soft); }
.btn.warn { border-color: var(--annun-amber); color: var(--annun-amber); }
.btn.warn:hover { background: var(--annun-amber-soft); }
.btn.danger { border-color: var(--annun-red); color: var(--annun-red); }
.btn.danger:hover { background: var(--annun-red-soft); }

.seg {
  display: inline-flex;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.seg > button {
  background: transparent;
  border: 0;
  color: var(--ink-dim);
  padding: 4px 10px;
  font-size: calc(12.5px * var(--fs, 1));
  cursor: pointer;
}
.seg > button + button { border-left: 1px solid var(--hairline-soft); }
.seg > button.active { background: var(--bg-raised); color: var(--phosphor); }
.seg > button:disabled { color: var(--locked); cursor: default; }

/* --- Panel groups (controls column) ---------------------------------------- */

.ctl-group {
  border-bottom: 1px solid var(--hairline-soft);
  padding: 10px 12px;
}
.ctl-group > h3 {
  margin: 0 0 8px;
  font-size: calc(11.5px * var(--fs, 1));
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-dim);
}
.ctl-group.locked { opacity: 0.5; }
.ctl-group.locked > h3::after { content: " 🔒"; }

.ctl-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: calc(13.5px * var(--fs, 1));
}
.ctl-row label { flex: 1 1 auto; color: var(--ink-dim); }

/* --- Modal (widgets.js: modal-scrim / modal-card) ---------------------------- */

#modalRoot:empty { display: none; }
.modal-scrim {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: #000a;
  display: grid;
  place-items: center;
  backdrop-filter: blur(2px);
}
.modal-card {
  background: var(--bg-panel);
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  max-width: min(760px, 92vw);
  max-height: 88vh;
  overflow-y: auto;
  padding: 20px 24px;
  box-shadow: 0 12px 48px #000c;
}

/* --- Toasts (widgets.js: toast-wrap) ----------------------------------------- */

.toast-wrap {
  position: fixed;
  bottom: calc(var(--status-h) + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
}
.toast {
  background: var(--bg-raised);
  border: 1px solid var(--phosphor);
  color: var(--ink);
  border-radius: var(--radius);
  padding: 10px 18px;
  box-shadow: 0 6px 24px #000c;
  animation: toast-in 0.25s ease;
  max-width: min(480px, 90vw);
}
.toast .t-title { font-weight: 600; color: var(--phosphor); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* --- Widget kit (sliders, toggles, dials) ------------------------------------ */

.ctl-head { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; }
.ctl-head label { color: var(--ink-dim); font-size: calc(13px * var(--fs, 1)); }
.ctl-head .val {
  width: 64px;
  background: var(--bg-inset);
  border: 1px solid var(--hairline-soft);
  border-radius: 3px;
  color: var(--phosphor);
  font-family: var(--mono);
  font-size: calc(12.5px * var(--fs, 1));
  text-align: right;
  padding: 1px 5px;
}
.ctl-head .unit { color: var(--ink-faint); font-size: calc(11.5px * var(--fs, 1)); margin-left: 4px; }

.ctl-row input[type="range"] {
  width: 100%;
  accent-color: var(--phosphor);
  height: 20px;
}
.ctl-row.locked { opacity: 0.45; }

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
  font-size: calc(13.5px * var(--fs, 1));
  color: var(--ink-dim);
  cursor: pointer;
}
.toggle-row input { accent-color: var(--phosphor); width: 16px; height: 16px; }
.toggle-row.locked { opacity: 0.45; }

.dial { position: relative; display: grid; place-items: center; }
.dial svg { position: absolute; inset: 0; transform: rotate(-90deg); }
.dial-label {
  position: relative;
  font-size: calc(10px * var(--fs, 1));
  font-weight: 700;
  color: var(--phosphor);
  font-family: var(--mono);
}

.btn.small { font-size: calc(12px * var(--fs, 1)); padding: 3px 9px; }
.btn.icon { padding: 3px 8px; }

.star-string .off { color: var(--locked); }

/* --- Lesson framework (steps, tasks, nav) ------------------------------------ */

.item-header .item-unit {
  font-size: calc(10px * var(--fs, 1));
  letter-spacing: 0.16em;
  color: var(--annun-amber);
  font-family: var(--mono);
}
.item-blurb { color: var(--ink-dim); margin-top: -4px; }
.step-progress { font-size: calc(11px * var(--fs, 1)); color: var(--ink-faint); letter-spacing: 0.1em; margin-bottom: 10px; }
.step-nav {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: auto;                 /* pin to the bottom of short lessons */
  position: sticky;                 /* stay visible under long ones */
  bottom: 0;
  z-index: 2;
  background: var(--bg-panel);
  border-top: 1px solid var(--hairline-soft);
  padding: 7px 0 8px;
}
.step-nav:not(.lesson-body > .step-nav) { margin-top: 14px; }
.widget-wrap {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: var(--bg-inset);
  padding: 10px;
  margin: 12px 0;
}
/* Estimate tasks: the answer entry must look like an instrument, not a form. */
.task-gate { flex-wrap: wrap; }
.estimate-row {
  flex: 1 1 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.estimate-input {
  width: 130px;
  background: var(--bg-inset);
  border: 1px solid var(--phosphor);
  border-radius: 4px;
  color: var(--phosphor);
  font-family: var(--mono);
  font-size: calc(15px * var(--fs, 1));
  padding: 5px 10px;
  text-shadow: 0 0 6px var(--phosphor-glow);
}
.estimate-input::placeholder { color: var(--ink-faint); text-shadow: none; font-size: calc(12.5px * var(--fs, 1)); }
.estimate-input.good { border-color: var(--good); color: var(--good); }
.estimate-input.bad { border-color: var(--bad); animation: shake 0.3s; }
.estimate-unit { color: var(--ink-dim); font-size: calc(13px * var(--fs, 1)); }

.scenario-log {
  margin-top: 12px;
  max-height: 140px;
  overflow-y: auto;
  background: var(--bg-inset);
  border: 1px solid var(--hairline-soft);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: calc(12.5px * var(--fs, 1));
}
.log-entry { padding: 2px 0; color: var(--ink-dim); }
.log-entry.alarm { color: var(--annun-amber); }
.log-entry .log-t { color: var(--ink-faint); font-size: calc(11px * var(--fs, 1)); margin-right: 6px; }

/* --- Challenge -------------------------------------------------------------- */

.attempt-header { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.attempt-clock { font-size: calc(13px * var(--fs, 1)); }
.phase-strip { display: flex; gap: 6px; flex-wrap: wrap; margin: 10px 0; }
.phase-chip {
  font-size: calc(11px * var(--fs, 1));
  letter-spacing: 0.08em;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  padding: 2px 10px;
  color: var(--ink-faint);
}
.phase-chip.now { color: var(--annun-amber); border-color: var(--annun-amber); }
.phase-chip.done { color: var(--good); border-color: var(--good); }
.goal-rows { display: flex; flex-direction: column; gap: 5px; margin: 12px 0; }
.goal-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: calc(13px * var(--fs, 1));
  border: 1px dashed var(--hairline);
  border-radius: var(--radius-sm);
  padding: 5px 10px;
}
.goal-row.met { border-color: var(--good); border-style: solid; }
.goal-row.unmet { opacity: 0.85; }
.goal-row .goal-label { flex: 1 1 auto; }
.goal-row .goal-phase { color: var(--ink-faint); font-size: calc(11px * var(--fs, 1)); }
.goal-star { font-size: calc(11px * var(--fs, 1)); color: var(--annun-amber); white-space: nowrap; }
.result-stars { font-size: calc(34px * var(--fs, 1)); color: var(--annun-amber); text-align: center; margin: 10px 0; }
.proc-title { font-size: calc(11px * var(--fs, 1)); letter-spacing: 0.14em; color: var(--ink-dim); margin: 14px 0 6px; }
.speed-strip { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.speed-strip-label {
  font-size: calc(10.5px * var(--fs, 1));
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  font-family: var(--mono);
}
.proc-list { display: flex; flex-direction: column; gap: 4px; }
.proc-step { display: flex; gap: 8px; align-items: baseline; font-size: calc(13px * var(--fs, 1)); color: var(--ink-dim); }
.proc-step.done { color: var(--ink); }
.proc-step.done .box { color: var(--good); }
.proc-crit { font-size: calc(9px * var(--fs, 1)); letter-spacing: 0.1em; color: var(--annun-red); border: 1px solid; border-radius: 3px; padding: 0 4px; }

/* --- Quiz -------------------------------------------------------------------- */

.quiz-progress { font-size: calc(11px * var(--fs, 1)); color: var(--ink-faint); letter-spacing: 0.1em; margin: 10px 0 6px; }
.quiz-prompt { font-size: calc(14.5px * var(--fs, 1)); margin-bottom: 10px; }
.quiz-choices, .quiz-order { display: flex; flex-direction: column; gap: 6px; }
.quiz-choice { text-align: left; white-space: normal; line-height: 1.4; }
.quiz-choice.right { border-color: var(--good); color: var(--good); }
.quiz-choice.wrong { border-color: var(--bad); color: var(--bad); }
.quiz-choice.shake { animation: shake 0.3s; }
.quiz-candidates { display: grid; grid-template-columns: 1fr; gap: 8px; }
.quiz-computing {
  font-family: var(--mono);
  font-size: calc(11px * var(--fs, 1));
  color: var(--phosphor);
  letter-spacing: 0.15em;
  margin: 12px 0;
  animation: computing-pulse 1.2s ease-in-out infinite;
}
@keyframes computing-pulse { 50% { opacity: 0.35; } }
.quiz-candidate { padding: 6px; }
.quiz-candidate.right { border-color: var(--good); }
.quiz-candidate.wrong { border-color: var(--bad); }
.mini-chart { width: 100%; height: auto; border-radius: 4px; }
.cand-label { font-size: calc(12px * var(--fs, 1)); color: var(--ink-dim); margin-top: 4px; }
.read-choices { flex-direction: row; flex-wrap: wrap; margin-top: 8px; }
.read-choices .quiz-choice { flex: 1 1 40%; text-align: center; font-family: var(--mono); }
.quiz-annun { display: grid; grid-template-columns: repeat(4, 1fr); gap: 4px; margin: 8px 0; }
.quiz-tile { min-height: 40px; font-size: calc(9.5px * var(--fs, 1)); cursor: pointer; }
.quiz-tile.right { outline: 2px solid var(--good); }
.quiz-tile.wrong { outline: 2px solid var(--bad); }
.quiz-score .readout { font-size: calc(20px * var(--fs, 1)); }
.order-num { color: var(--good); }
@keyframes shake { 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

.info-icon {
  color: var(--steel);
  font-size: calc(14px * var(--fs, 1));
  cursor: help;
  user-select: none;
  margin-left: 7px;
}
.info-icon:hover { color: var(--phosphor); }

.validate-banner {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 99;
  background: var(--annun-red);
  color: #fff;
  font-size: calc(12px * var(--fs, 1));
  padding: 3px 10px;
  text-align: center;
}