/* Mode Tab Switcher */
.mode-tab-btn {
  transition: all 0.2s ease;
}
.mode-tab-btn.active {
  border-color: var(--gold) !important;
  background: #2a2412 !important;
  color: var(--gold-light) !important;
  box-shadow: 0 0 12px rgba(212, 175, 55, 0.35);
}

.mode-tab-btn.active-koch {
  border-color: var(--neon-blue) !important;
  background: #002b3d !important;
  color: #e0f7fa !important;
  box-shadow: 0 0 12px rgba(0, 229, 255, 0.25);
}

/* Passage Char Styles */
.passage-box {
  background: #0d0e12;
  border: 1.5px solid #2d313d;
  border-radius: 8px;
  padding: 12px;
  min-height: 80px;
  max-height: 160px;
  overflow-y: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 6px;
  align-items: center;
  line-height: 1;
}

.passage-box::-webkit-scrollbar {
  width: 6px;
}
.passage-box::-webkit-scrollbar-track {
  background: transparent;
}
.passage-box::-webkit-scrollbar-thumb {
  background: #232b3b;
  border-radius: 3px;
}
.passage-box::-webkit-scrollbar-thumb:hover {
  background: #333e54;
}

.char-chip {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 42px;
  padding: 3px 5px;
  border-radius: 6px;
  background: #181920;
  border: 1.5px solid #333742;
  font-family: monospace;
  font-weight: bold;
  transition: all 0.15s ease;
}

.char-chip .letter-text {
  font-size: 1.1rem;
  color: #9aa0a6;
}

.char-chip .hint-text {
  font-size: 0.65rem;
  color: #666;
  margin-top: 2px;
  font-family: monospace;
}

/* Char states */
.char-chip.state-current {
  border-color: var(--neon-blue);
  box-shadow: 0 0 10px var(--neon-glow);
  transform: scale(1.06);
  background: #002330;
}
.char-chip.state-current .letter-text {
  color: #fff;
}
.char-chip.state-current .hint-text {
  color: var(--neon-blue);
}

.char-chip.state-correct {
  border-color: #00e676;
  background: #0a2918;
  box-shadow: 0 0 6px rgba(0, 230, 118, 0.35);
}
.char-chip.state-correct .letter-text {
  color: #00e676;
}

.char-chip.state-wrong {
  border-color: #ff5252;
  background: #331214;
  box-shadow: 0 0 6px rgba(255, 82, 82, 0.4);
}
.char-chip.state-wrong .letter-text {
  color: #ff5252;
  text-decoration: line-through;
}

.char-chip.char-space {
  min-width: 14px;
  border-color: transparent;
  background: transparent;
}
.char-chip.char-space.state-current {
  border-color: #444;
  background: #1f2128;
}
.char-chip.char-space.state-correct {
  border-color: #00e676;
  background: rgba(0, 230, 118, 0.15);
}

.char-chip.state-playing {
  border-color: var(--gold-light);
  background: #443708;
  box-shadow: 0 0 12px rgba(255, 215, 0, 0.8);
  transform: scale(1.1);
}
.char-chip.state-playing .letter-text {
  color: #fff;
}
.char-chip.state-playing .hint-text {
  color: var(--gold-light);
}

.sample-pill {
  background: #14161c;
  border: 1px solid #333844;
  color: #bbb;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.72rem;
  cursor: pointer;
  transition: all 0.1s;
}
.sample-pill:hover {
  background: #252834;
  color: #fff;
  border-color: var(--gold);
}

/* Walkthrough Scenarios */
.tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 10px;
  overflow-x: auto;
}

.tab-btn {
  background: #121318;
  border: 1px solid #353842;
  color: #aaa;
  padding: 5px 10px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.78rem;
  white-space: nowrap;
}

.tab-btn.active {
  background: var(--gold);
  color: #000;
  font-weight: bold;
  border-color: var(--gold);
}

.scenario-body {
  font-size: 0.82rem;
  color: #bbb;
  line-height: 1.45;
}

.scenario-steps {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.step-btn {
  background: #252832;
  border: 1px solid #444a57;
  color: #fff;
  padding: 6px 12px;
  border-radius: 5px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: background 0.15s;
}

.step-btn:hover {
  background: #393e4d;
}

/* Koch Assessment Modes & Reflex Bar */
.koch-mode-tabs {
  display: flex;
  gap: 6px;
  width: 100%;
  margin-bottom: 10px;
}

.koch-mode-tab {
  flex: 1;
  padding: 6px 10px;
  font-size: 0.78rem;
  font-weight: bold;
  border-radius: 6px;
  cursor: pointer;
  border: 1px solid #283545;
  background: #0f151e;
  color: #8899aa;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.koch-mode-tab:hover {
  background: #172130;
  color: #cceeff;
  border-color: #3b506b;
}

.koch-mode-tab.active {
  background: #00364d;
  color: var(--neon-blue);
  border-color: var(--neon-blue);
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.25);
}

.koch-mode-tab.active.tab-challenge {
  background: #3b1114;
  color: #ff5252;
  border-color: #ff5252;
  box-shadow: 0 0 8px rgba(255, 82, 82, 0.25);
}

.koch-reflex-container {
  width: 100%;
  height: 5px;
  background: #10151f;
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
  position: relative;
  border: 1px solid #1c2738;
}

.koch-reflex-bar {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #00e5ff, #00ff88);
  transition: width 0.04s linear, background-color 0.2s ease;
  box-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
}

.koch-reflex-bar.warn {
  background: linear-gradient(90deg, #ffb703, #ffd700);
  box-shadow: 0 0 8px rgba(255, 183, 3, 0.6);
}

.koch-reflex-bar.danger {
  background: linear-gradient(90deg, #ff5252, #ff0055);
  box-shadow: 0 0 8px rgba(255, 82, 82, 0.7);
}

.char-chip.state-timeout {
  border-color: #ff9100;
  background: #331f0a;
  box-shadow: 0 0 8px rgba(255, 145, 0, 0.4);
  position: relative;
}

.char-chip.state-timeout .char-main,
.char-chip.state-timeout .letter-text {
  color: #ff9100;
  text-decoration: line-through;
}

.char-chip.state-timeout::after {
  content: "\F051B";
  font-family: "Material Design Icons";
  position: absolute;
  top: -5px;
  right: -5px;
  font-size: 0.65rem;
  line-height: 1;
}

@keyframes challengeFailShake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
  100% { transform: translateX(0); }
}

.challenge-failed-shake {
  animation: challengeFailShake 0.45s ease-in-out;
  border-color: #ff5252 !important;
  box-shadow: 0 0 16px rgba(255, 82, 82, 0.5) !important;
}

/* Two-Row Koch Passage Layout & Rolling Matrix */
#koch-passage-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 92px;
  max-height: 92px;
  min-height: 92px;
  overflow: hidden;
  justify-content: flex-start;
  box-sizing: content-box;
}

.passage-row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 6px;
  width: 100%;
  height: 42px;
  box-sizing: border-box;
  flex-shrink: 0;
}

.passage-row.row-init-fade {
  animation: fadeInRow 0.2s ease;
}

.passage-row.row-sliding-out {
  animation: slideOutUpRow 0.28s cubic-bezier(0.25, 1, 0.5, 1) forwards !important;
  pointer-events: none;
}

@keyframes slideOutUpRow {
  0% {
    margin-top: 0;
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    margin-top: var(--slide-offset, -50px);
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes fadeInRow {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

#koch-passage-container .char-chip {
  min-width: 0;
  width: 100%;
  padding: 3px 2px;
  box-sizing: border-box;
}

/* Timer Reset Flash Feedback */
@keyframes timerResetPulse {
  0% { transform: scale(1); }
  40% { transform: scale(1.08); color: #ff5252 !important; text-shadow: 0 0 10px rgba(255, 82, 82, 0.8); }
  100% { transform: scale(1); }
}

.timer-reset-flash {
  animation: timerResetPulse 0.45s ease-out !important;
}

.btn-stop-koch {
  padding: 6px 10px;
  background: #2a1114;
  color: #ff5252;
  font-weight: bold;
  border: 1px solid #ff5252;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  box-shadow: 0 0 10px rgba(255, 82, 82, 0.2);
  white-space: nowrap;
  transition: all 0.2s ease;
}

.btn-stop-koch:hover {
  background: #3d1419;
  box-shadow: 0 0 12px rgba(255, 82, 82, 0.45);
}

/* Koch Focus HUD Bar (During Drill) */
.koch-hud-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #08121c;
  border: 1.5px solid #005b82;
  border-radius: 8px;
  padding: 6px 12px;
  margin-bottom: 8px;
  animation: fadeInRow 0.2s ease;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.12);
  flex-wrap: wrap;
  gap: 8px;
}

.koch-hud-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.koch-hud-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.koch-hud-badge {
  background: #00364d;
  color: var(--neon-blue);
  padding: 2px 8px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: bold;
  border: 1px solid #005b82;
  white-space: nowrap;
}

.koch-hud-stats {
  font-size: 0.78rem;
  color: #e0e0e0;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: monospace;
}

.koch-hud-stop {
  padding: 3px 10px;
  background: #2b1114;
  border: 1px solid #ff5252;
  color: #ff7676;
  border-radius: 4px;
  font-size: 0.74rem;
  font-weight: bold;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  transition: all 0.15s ease;
}

.koch-hud-stop:hover {
  background: #ff5252;
  color: #fff;
  box-shadow: 0 0 8px rgba(255, 82, 82, 0.5);
}

/* ====================================================
 * KOCH STAGE MATRIX & CLEARANCE TIERS
 * ==================================================== */

.koch-trophy-summary {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  align-items: center;
  margin: 6px 0 10px 0;
}

.trophy-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 12px;
  font-size: 0.72rem;
  font-weight: 600;
  background: #10151f;
  border: 1px solid #233042;
  color: #99aabf;
  white-space: nowrap;
}

.trophy-pill strong {
  font-family: monospace;
  font-size: 0.8rem;
}

.trophy-pill.pill-challenge {
  background: #1c1706;
  border-color: #634b12;
  color: #ffd700;
  box-shadow: 0 0 6px rgba(255, 215, 0, 0.15);
}
.trophy-pill.pill-challenge strong {
  color: #fff;
}

.trophy-pill.pill-standard {
  background: #081a24;
  border-color: #0c4d6b;
  color: #00e5ff;
}
.trophy-pill.pill-standard strong {
  color: #fff;
}

.trophy-pill.pill-quick {
  background: #0a1c12;
  border-color: #15572e;
  color: #00e676;
}
.trophy-pill.pill-quick strong {
  color: #fff;
}

.trophy-pill.pill-total {
  background: #12141a;
  border-color: #2b303d;
  color: #889;
  margin-left: auto;
}

/* Koch Stage Matrix Map */
.koch-matrix-card {
  background: #0a0f16;
  border: 1px solid #1c2738;
  border-radius: 8px;
  padding: 8px 10px;
  margin-bottom: 8px;
}

.koch-stage-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  max-height: 175px;
  overflow-y: auto;
  padding-right: 2px;
}

.koch-stage-grid::-webkit-scrollbar {
  width: 4px;
}
.koch-stage-grid::-webkit-scrollbar-thumb {
  background: #253347;
  border-radius: 2px;
}

@media (max-width: 520px) {
  .koch-stage-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    max-height: 260px;
  }
}

.stage-cell {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 2px 4px;
  background: #111722;
  border: 1px solid #233145;
  border-radius: 5px;
  color: #ccc;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.stage-cell:hover:not(:disabled) {
  background: #1b2638;
  border-color: #3f5575;
  color: #fff;
}

.stage-cell.active-stage {
  border-color: var(--neon-blue) !important;
  background: #102436 !important;
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.45);
  transform: scale(1.03);
  z-index: 2;
}

.stage-cell.cell-cleared-challenge {
  background: #1c1706;
  border-color: #785a14;
  box-shadow: 0 0 5px rgba(255, 215, 0, 0.12);
}
.stage-cell.cell-cleared-challenge .stage-char {
  color: #ffd700;
  font-weight: bold;
}

.stage-cell.cell-cleared-standard {
  background: #081c29;
  border-color: #0c597d;
}
.stage-cell.cell-cleared-standard .stage-char {
  color: #00e5ff;
  font-weight: bold;
}

.stage-cell.cell-cleared-quick {
  background: #091c13;
  border-color: #175e33;
}
.stage-cell.cell-cleared-quick .stage-char {
  color: #00e676;
}

.stage-cell.cell-locked {
  background: #0b0e14;
  border-color: #171f2b;
  color: #445063;
  cursor: not-allowed;
  opacity: 0.55;
}

.stage-cell-top {
  display: flex;
  justify-content: space-between;
  width: 100%;
  font-size: 0.58rem;
  line-height: 1;
  margin-bottom: 2px;
}

.stage-num {
  color: #728296;
  font-family: monospace;
}

.stage-medal {
  font-size: 0.66rem;
  line-height: 1;
}

.stage-char {
  font-size: 0.86rem;
  font-weight: 800;
  font-family: 'Arial Black', sans-serif;
  line-height: 1.1;
  color: #fff;
}

/* Tier Badges on Active Stage Card */
.badge-tier {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  border-radius: 10px;
  font-size: 0.72rem;
  font-weight: bold;
  white-space: nowrap;
}

.badge-tier.tier-challenge {
  background: #2b2207;
  border: 1px solid #9e771a;
  color: #ffd700;
  box-shadow: 0 0 6px rgba(255, 215, 0, 0.25);
}

.badge-tier.tier-standard {
  background: #002d3d;
  border: 1px solid #006f9c;
  color: #00e5ff;
}

.badge-tier.tier-quick {
  background: #0d2818;
  border: 1px solid #196b34;
  color: #00e676;
}

.badge-tier.tier-none {
  background: #141822;
  border: 1px solid #283244;
  color: #889;
}

/* Mobile Handheld Focus Mode during Koch Drill */
@media (max-width: 768px) {
  body.koch-drilling #col-hardware {
    display: none !important;
  }
  body.koch-drilling .main-container {
    padding-top: 2px;
  }
  body.koch-drilling #cockpit-top-ribbon {
    margin-bottom: 2px;
  }
  /* Enhanced Spotlight for current target on mobile */
  .char-chip.state-current {
    transform: scale(1.18);
    box-shadow: 0 0 14px rgba(0, 229, 255, 0.75);
    border-color: #00e5ff !important;
    background: #00364d !important;
    z-index: 2;
  }
  #koch-fb-target {
    font-size: 1.15rem;
    letter-spacing: 1px;
  }
}