/* ── blocksec · monochrome ops console ──────────────────────────────────────
   Zero-dependency, single stylesheet, forked from infrasec's. Colour, type and
   shape tokens all come from theme.css, which is loaded first and owns both
   light and dark; this file defines no palette of its own. Nothing here
   introduces a hue — right/wrong and mode are carried by contrast, weight,
   fill and border style, never by colour. Trimmed relative to infrasec: the
   quiz, scenario and incident rules went with those engines. */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none !important;
}

.screen {
  max-width: 900px;
  margin: 0 auto;
  padding: 28px 20px 64px;
  min-height: 100%;
}

/* ── flash feedback ───────────────────────────────────────────────────────── */
#flash {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 50;
  opacity: 0;
}
.flash.success {
  animation: flashSuccess 0.4s ease-out;
}
.flash.error {
  animation: flashError 0.4s ease-out;
}
@keyframes flashSuccess {
  0% {
    opacity: 0.5;
    box-shadow: inset 0 0 120px var(--fill-weak);
  }
  100% {
    opacity: 0;
    box-shadow: inset 0 0 120px transparent;
  }
}
@keyframes flashError {
  0% {
    opacity: 0.5;
    box-shadow: inset 0 0 120px var(--fill-strong);
  }
  100% {
    opacity: 0;
    box-shadow: inset 0 0 120px transparent;
  }
}

/* ── home / select ────────────────────────────────────────────────────────── */
.home-head {
  text-align: center;
  margin-bottom: 28px;
}
/* The home wordmark is now the shared .hero-lockup in theme.css. */
.tagline {
  color: var(--text-secondary);
  max-width: 620px;
  margin: 12px auto 0;
  font-size: 0.98rem;
}

.track-tabs {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 26px;
  flex-wrap: wrap;
}
.track-tab {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 20px;
  cursor: pointer;
  transition: all 0.15s;
}
.track-tab:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.track-tab.active {
  color: var(--text-inverse);
  background: var(--text-primary);
  border-color: var(--text-primary);
  font-weight: 600;
}

.select-prompt {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.select-prompt::before {
  content: "// ";
  color: var(--text-muted);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
}
.card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  text-align: left;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  cursor: pointer;
  color: inherit;
  font: inherit;
  transition: all 0.15s;
}
.card.available:hover {
  border-color: var(--border-strong);
  background: var(--bg-muted);
  transform: translateY(-2px);
}
.card-mode {
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 3px 9px;
  border-radius: 5px;
}
.card-mode.drill {
  color: var(--text-inverse);
  background: var(--text-primary);
}
.card-mode.challenge {
  color: var(--text-primary);
  background: var(--fill-strong);
}
.card-title {
  font-size: 1.05rem;
  font-weight: 600;
}
.card-desc {
  color: var(--text-secondary);
  font-size: 0.88rem;
}
.card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  margin-top: 4px;
}
.card-count {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}
.card-progress {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}
.card-progress.has-progress {
  color: var(--text-primary);
  background: var(--fill-weak);
  padding: 2px 8px;
  border-radius: 5px;
}

.home-foot {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-top: 40px;
}
.home-foot .foot-craft {
  margin-top: 6px;
}
.home-foot .foot-link {
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
}
.home-foot .foot-link:hover {
  text-decoration: underline;
}

/* ── top bar (in-session) ─────────────────────────────────────────────────── */
.bar {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
  flex-wrap: wrap;
}
.back-btn {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  background: none;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.back-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.bar-logo {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text-secondary);
}
.stats {
  margin-left: auto;
  display: flex;
  gap: 16px;
}
.stat {
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--text-muted);
}
.stat b {
  color: var(--text-primary);
  font-weight: 700;
}

/* ── drill / challenge shared ─────────────────────────────────────────────── */
.drill-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.drill-head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.drill-title {
  font-size: 1.25rem;
  font-weight: 600;
}
.chip {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--text-secondary);
  background: var(--bg-muted);
  border: 1px solid var(--border);
  padding: 2px 9px;
  border-radius: 5px;
}

.code-box {
  position: relative;
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 20px 24px 44px;
  cursor: text;
  overflow-x: auto;
}
.code-box.done {
  border-color: var(--border-strong);
}
.prompt-sym {
  position: absolute;
  left: 16px;
  top: 20px;
  font-family: var(--mono);
  color: var(--text-primary);
  font-size: 1.02rem;
  user-select: none;
}
.code-display {
  font-family: var(--mono);
  font-size: 1.02rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
}
.char {
  color: var(--text-muted);
  position: relative;
}
.char.correct {
  color: var(--text-primary);
}
.char.wrong {
  color: var(--text-primary);
  background: var(--fill-strong);
  border-radius: 2px;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 2px;
}
.char.current {
  background: var(--text-primary);
  color: var(--text-inverse);
  border-radius: 2px;
}
.char.nl {
  color: var(--border-strong);
}
.char.masked {
  color: var(--border-strong);
  opacity: 0.55;
}
.hidden-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  left: -9999px;
}
.progress-track {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 3px;
  background: var(--border);
  border-radius: 0 0 10px 10px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0;
  background: var(--text-primary);
  transition: width 0.08s linear;
}

/* terminal output block */
.term-output-wrap {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
}
.term-output-label {
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.term-output {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.5;
}

.explain-box {
  background: var(--bg-subtle);
  border-left: 3px solid var(--text-primary);
  border-radius: 0 8px 8px 0;
  padding: 14px 18px;
}
.explain-text {
  color: var(--text-primary);
  font-size: 0.95rem;
}
.explain-ref {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.hint-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.hint {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}
kbd {
  font-family: var(--mono);
  font-size: 0.75rem;
  background: var(--bg-muted);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 1px 6px;
  color: var(--text-secondary);
}

.ghost-btn,
.primary-btn {
  font-family: var(--mono);
  font-size: 0.85rem;
  border-radius: 7px;
  padding: 8px 16px;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: all 0.15s;
}
.ghost-btn {
  background: none;
  color: var(--text-secondary);
}
.ghost-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.primary-btn {
  background: var(--text-primary);
  color: var(--text-inverse);
  border-color: var(--text-primary);
  font-weight: 600;
}
.primary-btn:hover {
  opacity: 0.85;
}
.btn-group {
  display: flex;
  gap: 8px;
}

/* ── challenge ────────────────────────────────────────────────────────────── */
.challenge-prompt {
  font-size: 1.05rem;
  color: var(--text-primary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 18px;
}
.challenge-input {
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-subtle);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 14px 16px;
  min-height: 96px;
  resize: vertical;
  width: 100%;
}
.challenge-input:focus {
  outline: none;
  border-color: var(--text-primary);
}
.challenge-feedback {
  border-radius: 10px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  background: var(--bg-subtle);
}
.challenge-feedback.correct {
  border-width: 2px;
  border-color: var(--text-primary);
}
.challenge-feedback.wrong {
  border-style: dashed;
  border-color: var(--border-strong);
}
.challenge-feedback.hint {
  border-style: dotted;
  border-color: var(--border-strong);
}
.challenge-feedback-head {
  font-family: var(--mono);
  font-weight: 700;
  margin-bottom: 6px;
}
.challenge-feedback.correct .challenge-feedback-head {
  color: var(--text-primary);
}
.challenge-feedback.wrong .challenge-feedback-head {
  color: var(--text-secondary);
}
.challenge-feedback.hint .challenge-feedback-head {
  color: var(--text-secondary);
}
.challenge-feedback-msg {
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.challenge-feedback-msg code {
  font-family: var(--mono);
  background: var(--bg-muted);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--text-secondary);
}
.hint-mask {
  font-family: var(--mono);
  letter-spacing: 2px;
  opacity: 0.4;
}

/* ── recall controls: tag filter + sprint ──────────────────────────────────*/
.challenge-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.tag-filter {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.tag-chip {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--text-secondary);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px 11px;
  cursor: pointer;
  transition: all 0.12s;
}
.tag-chip:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}
.tag-chip.active {
  color: var(--text-inverse);
  background: var(--text-primary);
  border-color: var(--text-primary);
  font-weight: 600;
}
.sprint-box {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.sprint-timer {
  font-family: var(--mono);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.sprint-timer.low {
  color: var(--text-primary);
  font-weight: 700;
}
.sprint-box .ghost-btn.active {
  color: var(--text-inverse);
  background: var(--text-secondary);
  border-color: var(--text-secondary);
}
.challenge-solution-wrap {
  margin-top: 14px;
}
.challenge-solution-wrap .term-output {
  color: var(--text-primary);
}

@media (max-width: 560px) {
  .logo {
    font-size: 2rem;
  }
  .stats {
    width: 100%;
    margin-left: 0;
  }
  .bar {
    gap: 10px;
  }
}