/* ═══════════════════════════════════════════════════════════════════
   STORY MODE — PREMIUM LEARNING EXPERIENCE v2
   Explanation panels · Copy buttons · Fact cards · Mission progress
═══════════════════════════════════════════════════════════════════ */

/* ── MISSION PROGRESS BAR ─────────────────────────────────────── */
.mission-progress-bar {
  display: flex;
  align-items: center;
  gap: 0;
  margin: 0 0 28px;
  padding: 16px 20px;
  background: rgba(0,0,0,0.4);
  border: 1px solid rgba(0,245,255,0.08);
  border-radius: 2px;
  overflow-x: auto;
}
.mpb-step {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  cursor: pointer;
  position: relative;
}
.mpb-node {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--dim);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--muted);
  transition: all 0.3s var(--transition);
  position: relative;
  z-index: 1;
}
.mpb-step.done .mpb-node {
  background: rgba(0,255,136,0.15);
  border-color: var(--c3);
  color: var(--c3);
  box-shadow: 0 0 12px rgba(0,255,136,0.2);
}
.mpb-step.active .mpb-node {
  background: rgba(0,245,255,0.15);
  border-color: var(--c);
  color: var(--bright);
  box-shadow: 0 0 16px rgba(0,245,255,0.3);
  animation: nodePulse 2s ease-in-out infinite;
}
@keyframes nodePulse {
  0%,100% { box-shadow: 0 0 12px rgba(0,245,255,0.3); }
  50%      { box-shadow: 0 0 24px rgba(0,245,255,0.55); }
}
.mpb-line {
  width: 28px; height: 1.5px;
  background: var(--border);
  flex-shrink: 0;
  transition: background 0.4s;
}
.mpb-step.done + .mpb-step .mpb-line,
.mpb-step.done .mpb-line {
  background: rgba(0,255,136,0.35);
}
.mpb-tooltip {
  display: none;
  position: absolute;
  bottom: 36px; left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border-hi);
  color: var(--bright);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1px;
  white-space: nowrap;
  padding: 6px 10px;
  pointer-events: none;
  z-index: 10;
}
.mpb-tooltip::after {
  content: '';
  position: absolute;
  top: 100%; left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--border-hi);
}
.mpb-step:hover .mpb-tooltip { display: block; }

/* ── CONCEPT BRIEF (EXPLANATION PANEL) ───────────────────────── */
.concept-brief {
  margin-bottom: 20px;
  border: 1px solid rgba(0,245,255,0.12);
  background: rgba(0,20,30,0.7);
  overflow: hidden;
  transition: border-color 0.3s;
  animation: slideDown 0.4s var(--transition) forwards;
}
.concept-brief:hover { border-color: rgba(0,245,255,0.22); }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.concept-brief-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  cursor: pointer;
  background: rgba(0,245,255,0.04);
  user-select: none;
  transition: background 0.2s;
}
.concept-brief-header:hover { background: rgba(0,245,255,0.08); }

.cbh-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.cbh-icon {
  width: 28px; height: 28px;
  background: rgba(0,245,255,0.1);
  border: 1px solid rgba(0,245,255,0.2);
  border-radius: 2px;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.cbh-title {
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c);
}
.cbh-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  margin-top: 2px;
}
.cbh-toggle {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  display: flex; align-items: center; gap: 6px;
  transition: color 0.2s;
}
.cbh-toggle-arrow {
  font-size: 14px;
  transition: transform 0.3s var(--transition);
  display: inline-block;
}
.concept-brief.open .cbh-toggle-arrow { transform: rotate(90deg); }
.concept-brief-header:hover .cbh-toggle { color: var(--bright); }

.concept-brief-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.45s var(--transition), padding 0.3s;
}
.concept-brief.open .concept-brief-body {
  max-height: 600px;
}

.concept-brief-inner {
  padding: 20px 20px 24px;
  border-top: 1px solid rgba(0,245,255,0.06);
}

.concept-what {
  font-family: var(--font-ui);
  font-size: 13.5px;
  color: var(--fg);
  line-height: 1.75;
  margin-bottom: 20px;
}
.concept-what strong { color: var(--bright); }

.concept-terms {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}
.concept-term {
  padding: 12px 14px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-left: 2px solid var(--c);
  border-radius: 0 2px 2px 0;
  transition: border-left-color 0.2s, box-shadow 0.2s;
}
.concept-term:hover {
  border-left-color: var(--c3);
  box-shadow: inset 3px 0 0 rgba(0,255,136,0.1);
}
.concept-term-name {
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--c);
  text-transform: uppercase;
  margin-bottom: 5px;
}
.concept-term-def {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.concept-why {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: rgba(0,255,136,0.04);
  border: 1px solid rgba(0,255,136,0.12);
  border-radius: 2px;
}
.concept-why-icon {
  font-size: 18px;
  flex-shrink: 0;
  margin-top: 1px;
}
.concept-why-text {
  font-family: var(--font-ui);
  font-size: 12.5px;
  color: var(--fg);
  line-height: 1.65;
}
.concept-why-text strong { color: var(--c3); }

/* ── COPY BUTTON ──────────────────────────────────────────────── */
.copy-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,245,255,0.06);
  border: 1px solid rgba(0,245,255,0.15);
  color: var(--c);
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  padding: 5px 12px;
  cursor: pointer;
  transition: all 0.2s;
  border-radius: 2px;
  flex-shrink: 0;
}
.copy-btn:hover {
  background: rgba(0,245,255,0.12);
  border-color: var(--c);
  box-shadow: 0 0 12px rgba(0,245,255,0.15);
}
.copy-btn.copied {
  background: rgba(0,255,136,0.1);
  border-color: var(--c3);
  color: var(--c3);
}
.copy-btn svg { width: 12px; height: 12px; }

/* ── READOUT WITH COPY ROW ────────────────────────────────────── */
.readout-wrap {
  position: relative;
}
.readout-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.readout-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── FACT CARD ────────────────────────────────────────────────── */
.fact-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: rgba(124,58,237,0.05);
  border: 1px solid rgba(124,58,237,0.15);
  border-radius: 2px;
  margin-top: 20px;
  animation: slideDown 0.5s var(--transition) forwards;
}
.fact-card-icon {
  font-size: 22px;
  flex-shrink: 0;
  margin-top: 2px;
}
.fact-card-content { }
.fact-card-label {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--c5);
  text-transform: uppercase;
  margin-bottom: 6px;
}
.fact-card-text {
  font-family: var(--font-ui);
  font-size: 12.5px;
  color: var(--fg);
  line-height: 1.65;
}
.fact-card-text strong { color: var(--c5); }

/* ── MISSION COMPLETE PANEL ───────────────────────────────────── */
.mission-complete {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: rgba(0,255,136,0.04);
  border: 1px solid rgba(0,255,136,0.2);
  margin-top: 20px;
  animation: missionBoom 0.6s var(--transition) forwards;
}
@keyframes missionBoom {
  0%   { opacity: 0; transform: scale(0.96) translateY(8px); }
  60%  { transform: scale(1.02) translateY(0); }
  100% { opacity: 1; transform: scale(1) translateY(0); }
}
.mc-badge {
  width: 44px; height: 44px;
  background: rgba(0,255,136,0.12);
  border: 2px solid var(--c3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
  box-shadow: 0 0 20px rgba(0,255,136,0.25);
  animation: nodePulse 2s ease-in-out infinite;
}
.mc-text { }
.mc-text-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--c3);
  text-transform: uppercase;
  margin-bottom: 4px;
}
.mc-text-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--muted);
}

/* ── HINT BOX ─────────────────────────────────────────────────── */
.hint-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 15px;
  background: rgba(0,245,255,0.04);
  border: 1px dashed rgba(0,245,255,0.15);
  border-radius: 2px;
  margin: 12px 0;
}
.hint-box-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.hint-box-text {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}
.hint-box-text strong { color: var(--c); }

/* ── STEP TAGS / PHASE LABELS ─────────────────────────────────── */
.phase-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--c);
  margin-bottom: 10px;
  padding: 5px 12px;
  background: rgba(0,245,255,0.06);
  border: 1px solid rgba(0,245,255,0.12);
  border-radius: 2px;
}
.phase-label.phase-warn { color: var(--c2); background: rgba(255,0,60,0.05); border-color: rgba(255,0,60,0.15); }
.phase-label.phase-ok   { color: var(--c3); background: rgba(0,255,136,0.05); border-color: rgba(0,255,136,0.15); }
.phase-label.phase-purple { color: var(--c5); background: rgba(124,58,237,0.05); border-color: rgba(124,58,237,0.15); }

/* ── INLINE STEP NUMBER ────────────────────────────────────────── */
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px; height: 22px;
  background: rgba(0,245,255,0.1);
  border: 1px solid rgba(0,245,255,0.2);
  border-radius: 50%;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 700;
  color: var(--c);
  margin-right: 6px;
  flex-shrink: 0;
}

/* ── STORY ACTION ZONE ─────────────────────────────────────────── */
#story-action-zone { animation: fadeUp 0.4s var(--transition) forwards; }
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── QUIZ ENHANCEMENTS ─────────────────────────────────────────── */
.quiz-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}
.quiz-header-icon { font-size: 24px; }
.quiz-header-title {
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 3px;
  color: var(--bright);
  text-transform: uppercase;
}
.quiz-header-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--muted);
  margin-top: 2px;
}
.quiz-question-num {
  font-family: var(--font-display);
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.quiz-explanation {
  font-family: var(--font-ui);
  font-size: 12px;
  color: var(--muted);
  padding: 10px 14px;
  background: rgba(0,0,0,0.3);
  border-left: 2px solid var(--c3);
  margin-top: 10px;
  line-height: 1.6;
  display: none;
  animation: slideDown 0.3s var(--transition) forwards;
}
.quiz-explanation.show { display: block; }
.quiz-explanation strong { color: var(--c3); }

/* ── DIALOGUE BADGE UPDATE ─────────────────────────────────────── */
.dialogue { position: relative; }
.dialogue::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px; height: 100%;
  background: var(--c);
  opacity: 0.5;
}
.dlg-srv .dialogue::before,
.dlg-SRV .dialogue::before { background: var(--c3); }
.dlg-hack .dialogue::before,
.dlg-HACK .dialogue::before { background: var(--c2); }

/* ── ANIMATED HASH BIT GRID WRAPPER ───────────────────────────── */
.bit-grid-label {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 2px;
  color: var(--muted);
  margin-bottom: 6px;
  text-transform: uppercase;
}

/* ── TRANSITION ANIMATIONS ─────────────────────────────────────── */
.reveal-in {
  animation: revealIn 0.5s var(--transition) forwards;
}
@keyframes revealIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Mobile adjustments */
@media (max-width: 640px) {
  .concept-terms { grid-template-columns: 1fr; }
  .mpb-line { width: 16px; }
  .mpb-node { width: 22px; height: 22px; font-size: 9px; }
}

/* -- ALGO CARD SAFETY LABELS -------------------------------------- */

/* Rebuild algo-tag to be readable at all sizes */
.algo-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.5px;
  line-height: 1.4;
  margin-top: 4px;
  display: block;
}

/* Colour variants */
.tag-danger {
  color: #ff4060;
  font-weight: 600;
}

.tag-warn {
  color: #ffaa00;
  font-weight: 600;
}

.tag-safe {
  color: #00cc7a;
  font-weight: 600;
}

/* Unsafe card � red tint border */
.algo-card.algo-unsafe {
  border-color: rgba(255, 40, 60, 0.3);
  background: rgba(255, 20, 40, 0.04);
}
.algo-card.algo-unsafe:hover {
  border-color: rgba(255, 40, 60, 0.6);
  background: rgba(255, 20, 40, 0.08);
}
.algo-card.algo-unsafe .algo-dot {
  border-color: rgba(255, 40, 60, 0.5);
}
.algo-card.algo-unsafe.selected {
  border-color: #ff4060;
  background: rgba(255, 40, 60, 0.06);
}
.algo-card.algo-unsafe.selected .algo-dot {
  background: #ff4060;
  border-color: #ff4060;
  box-shadow: 0 0 10px rgba(255, 40, 60, 0.6);
}

/* Warn card � orange tint border */
.algo-card.algo-warn {
  border-color: rgba(255, 160, 0, 0.25);
  background: rgba(255, 140, 0, 0.03);
}
.algo-card.algo-warn:hover {
  border-color: rgba(255, 160, 0, 0.5);
  background: rgba(255, 140, 0, 0.07);
}
.algo-card.algo-warn .algo-dot {
  border-color: rgba(255, 160, 0, 0.5);
}
.algo-card.algo-warn.selected {
  border-color: #ffaa00;
  background: rgba(255, 160, 0, 0.06);
}
.algo-card.algo-warn.selected .algo-dot {
  background: #ffaa00;
  border-color: #ffaa00;
  box-shadow: 0 0 10px rgba(255, 160, 0, 0.6);
}

/* algo-info wrapper for better layout */
.algo-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

/* Tighten algo-grid so cards are roomy */
.algo-grid {
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 10px;
  margin-bottom: 24px;
}

.algo-card {
  padding: 14px 16px;
  align-items: flex-start;
  gap: 12px;
}

.algo-name {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 1px;
}

/* -- PHASE LABEL READABILITY FIX ---------------------------------- */

.phase-label {
  font-size: 11px;
  letter-spacing: 2px;
  padding: 6px 14px;
  margin-bottom: 12px;
  margin-top: 4px;
  line-height: 1.5;
}

/* -- HINT BOX READABILITY FIX ------------------------------------- */

.hint-box-text {
  font-size: 13px;
  line-height: 1.7;
  color: rgba(255,255,255,0.65);
}

/* -- CONCEPT BRIEF BODY READABILITY ------------------------------ */

.concept-what {
  font-size: 14px;
  line-height: 1.8;
}

.concept-term-def {
  font-size: 12.5px;
  line-height: 1.6;
}

.concept-why-text {
  font-size: 13px;
  line-height: 1.7;
}

.fact-card-text {
  font-size: 13px;
  line-height: 1.7;
}

/* -- DIALOGUE TEXT READABILITY ------------------------------------ */

.dlg-text {
  font-size: 14px !important;
  line-height: 1.8 !important;
}

/* -- FORM LABEL SPACING ------------------------------------------- */

.form-label {
  letter-spacing: 1.5px;
  margin-bottom: 8px;
  display: block;
  line-height: 1.4;
}