/* ── Reset ─────────────────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: unset;
}

/* ── CRT Effects ──────────────────────────────────────────────── */
/* Kept as texture, not as a filter. These previously cost a lot of light:
   the scanlines dimmed every pixel by ~7.5% and the vignette removed up to
   70% across the outer third of the screen, which is exactly where the hero
   copy sits. Both are now subtle enough to read as character rather than
   as the page being underlit.
   One layer holds both, vignette on top. A full-screen layer is blended over
   the whole page on every frame that changes, so two of them cost double. */
#crt-overlay {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(
      ellipse at center,
      transparent 78%,
      rgba(0, 0, 0, 0.28) 100%
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(0, 0, 0, 0.05) 2px,
      rgba(0, 0, 0, 0.05) 4px
    );
  pointer-events: none;
  z-index: 9000;
}

/* ── Boot Screen ──────────────────────────────────────────────── */
#boot-screen {
  position: fixed;
  inset: 0;
  background: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 8000;
  transition: opacity 0.6s ease;
}

#boot-screen.fading {
  opacity: 0;
  pointer-events: none;
}

#boot-content {
  max-width: 760px;
  width: 100%;
  padding: var(--space-xl);
}

#boot-logo {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--green-primary);
  text-shadow: var(--glow-sm);
  line-height: 1.2;
  white-space: pre;
  overflow: hidden;
  opacity: 0;
  animation: fadeIn 0.4s ease 0.2s forwards;
}

#boot-subtitle {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--green-dim);
  letter-spacing: 4px;
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fadeIn 0.4s ease 0.5s forwards;
}

#boot-lines {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-dim);
  line-height: 1.8;
  min-height: 120px;
}

#boot-lines .boot-line {
  display: block;
  opacity: 0;
}

#boot-cursor {
  display: inline-block;
  color: var(--green-primary);
  animation: cursorBlink 1s step-end infinite;
  font-size: 16px;
}

/* ── App Container ────────────────────────────────────────────── */
#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

#app.hidden {
  display: none;
}

#page-container {
  flex: 1;
  padding-top: var(--header-height);
  display: flex;
  flex-direction: column;
}

/* ── Header ───────────────────────────────────────────────────── */
/* Places on the left as tabs, what is yours on the right. Plain labels, not
   bracketed buttons: the brackets made every item look like the same kind of
   thing. One filled button at most (Start learning, signed out). */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(12, 17, 22, 0.96);
  border-bottom: 1px solid var(--green-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  padding: 0 var(--space-xl);
  z-index: 100;
}

.header-logo {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--green-primary);
  letter-spacing: 2px;
  text-decoration: none;
  white-space: nowrap;
}

.header-logo span {
  color: var(--text-muted);
  font-size: 16px;
}

.hdr-left {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  height: 100%;
  min-width: 0;
}

.hdr-nav {
  display: flex;
  align-items: stretch;
  gap: var(--space-lg);
  height: 100%;
}

.hdr-tab {
  display: flex;
  align-items: center;
  padding-top: 2px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}
.hdr-tab:hover { color: var(--text-white); }
.hdr-tab.is-active { color: var(--text-white); border-bottom-color: var(--green-primary); }

.hdr-right {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

/* Rank: XP shown as the rank it earned and the distance to the next one. */
.hdr-rank {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 170px;
  padding: 0;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-mono);
}
.hdr-rank-label {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--green-primary);
  white-space: nowrap;
}
.hdr-rank-track { display: block; height: 3px; background: var(--locked); }
.hdr-rank-track i { display: block; height: 100%; background: var(--green-primary); transition: width 0.4s ease; }
.hdr-rank:hover .hdr-rank-label { color: var(--text-white); }

/* Account menu (and, on a phone, the tabs). */
.hdr-menu-wrap { position: relative; }
.hdr-user {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 32px;
  padding: 0 10px;
  background: none;
  border: 1px solid var(--green-dark);
  color: var(--green-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.hdr-user:hover,
.hdr-user[aria-expanded="true"] { border-color: var(--green-primary); color: var(--text-white); }
.hdr-user svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.hdr-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  padding: 4px 0;
  background: var(--bg-card);
  border: 1px solid var(--green-dark);
  z-index: 101;
}
.hdr-menu-who {
  margin-bottom: 4px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--locked);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}
.hdr-menu-who b { color: var(--text-white); font-weight: 500; letter-spacing: 0; }
.hdr-menu-item {
  display: block;
  width: 100%;
  padding: 9px 14px;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  text-decoration: none;
}
.hdr-menu-item:hover,
.hdr-menu-item:focus-visible { background: var(--bg-card-hover); color: var(--text-white); outline: none; }

/* Signed out. */
.hdr-link {
  padding: 0;
  background: none;
  border: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
}
.hdr-link:hover { color: var(--text-white); }
.hdr-cta {
  padding: 8px 14px;
  background: var(--green-primary);
  border: 1px solid var(--green-primary);
  color: var(--bg-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  white-space: nowrap;
  transition: background var(--transition-fast);
}
.hdr-cta:hover { background: var(--text-white); border-color: var(--text-white); }

.hdr-tab:focus-visible, .hdr-rank:focus-visible, .hdr-user:focus-visible,
.hdr-link:focus-visible, .hdr-cta:focus-visible { outline: 1px solid var(--green-primary); outline-offset: 3px; }

/* Phone-only pieces, off on a computer. */
.hdr-menu-nav, .hdr-guest-menu, .hdr-icon-only { display: none; }

/* ── Buttons ──────────────────────────────────────────────────── */
.btn {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 1px;
  padding: 8px 20px;
  border: 1px solid var(--green-primary);
  background: transparent;
  color: var(--green-primary);
  cursor: pointer;
  border-radius: 0;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition-fast), color var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}

.btn:hover {
  background: var(--green-primary);
  color: var(--bg-primary);
  box-shadow: var(--glow-md);
}

.btn:active {
  animation: btnFlash 0.1s linear;
}

.btn:disabled,
.btn.disabled {
  border-color: var(--green-dark);
  color: var(--green-dark);
  cursor: not-allowed;
  pointer-events: none;
}

.btn-ghost {
  border-color: var(--green-dark);
  color: var(--green-dim);
  font-size: 16px;
}

.btn-ghost:hover {
  background: var(--green-dark);
  color: var(--green-dim);
  box-shadow: none;
}

.btn-amber {
  border-color: var(--amber);
  color: var(--amber);
}

.btn-amber:hover {
  background: var(--amber);
  color: var(--bg-primary);
  box-shadow: var(--glow-amber);
}

.btn-danger {
  border-color: var(--red-alert);
  color: var(--red-alert);
}

.btn-danger:hover {
  background: var(--red-alert);
  color: var(--bg-primary);
  box-shadow: var(--glow-red);
}

.btn-sm {
  font-size: 14px;
  padding: 5px 12px;
}

.btn-lg {
  font-size: 24px;
  padding: 12px 32px;
}

/* ── Challenge Cards ──────────────────────────────────────────── */
.challenge-card {
  border: 1px solid var(--border-default);
  background: var(--bg-card);
  padding: var(--space-md);
  cursor: pointer;
  position: relative;
  transition: border-color var(--transition-base), box-shadow var(--transition-base), background var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  min-height: 120px;
}

.challenge-card:hover:not(.card-locked):not(.card-completed) {
  border-color: var(--green-primary);
  box-shadow: var(--glow-sm);
  background: var(--bg-card-hover);
}

.challenge-card.card-completed {
  border-left: 3px solid var(--green-primary);
}

.challenge-card.card-locked {
  opacity: 0.4;
  cursor: not-allowed;
}

.card-lock-icon {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-size: 16px;
  color: var(--text-muted);
}

.card-check-icon {
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-size: 16px;
  color: var(--green-primary);
  text-shadow: var(--glow-sm);
}

.card-type-badge {
  font-family: var(--font-display);
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.card-type-badge.type-2 {
  color: var(--amber);
}

.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text-white);
  line-height: 1.2;
}

.card-xp {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  margin-top: auto;
}

/* ── Progress Bar ─────────────────────────────────────────────── */
.progress-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.progress-bar-track {
  flex: 1;
  height: 4px;
  background: var(--locked);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--green-primary);
  box-shadow: var(--glow-sm);
  transition: width 0.5s ease;
}

.progress-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green-dim);
  white-space: nowrap;
}

/* ── System Message ───────────────────────────────────────────── */
.sys-message-box {
  border: 1px solid var(--green-dark);
  background: rgba(0, 30, 12, 0.6);
  padding: var(--space-md);
  font-family: var(--font-mono);
  font-size: 13px;
  min-height: 80px;
  position: relative;
}

.sys-message-box .msg-line {
  color: var(--green-dim);
  display: block;
  line-height: 1.8;
}

.sys-message-box .msg-line.confirmed {
  color: var(--green-primary);
  text-shadow: var(--glow-sm);
}

.sys-message-box .msg-line.error {
  color: var(--red-alert);
  text-shadow: var(--glow-red);
}

.sys-message-box .msg-line.amber {
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.sys-cursor {
  display: inline-block;
  animation: cursorBlink 1s step-end infinite;
  color: var(--green-primary);
}

/* ── Module Header ────────────────────────────────────────────── */
.module-header {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--green-dim);
  letter-spacing: 2px;
  padding: var(--space-xl) 0 var(--space-md);
  border-bottom: 1px solid var(--green-dark);
  margin-bottom: var(--space-lg);
}

.module-header .module-tag {
  color: var(--text-muted);
  font-size: 16px;
}

/* ── Page Wrappers ────────────────────────────────────────────── */
.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-xl);
  min-height: calc(100vh - var(--header-height));
}

.page-full {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Form Elements ────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.form-label {
  font-family: var(--font-display);
  font-size: 16px;
  color: var(--green-dim);
  letter-spacing: 1px;
}

.form-input {
  background: var(--bg-card);
  border: 1px solid var(--green-dark);
  color: var(--green-primary);
  font-family: var(--font-mono);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  border-radius: 0;
  width: 100%;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.form-input:focus {
  border-color: var(--green-primary);
  box-shadow: var(--glow-sm);
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-error {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--red-alert);
  text-shadow: var(--glow-red);
}

/* ── Auth Pages ───────────────────────────────────────────────── */
.auth-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.auth-box {
  width: 100%;
  max-width: 420px;
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
  padding: var(--space-xl);
}

.auth-title {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--green-primary);
  text-shadow: var(--glow-md);
  letter-spacing: 3px;
  margin-bottom: var(--space-xs);
}

.auth-subtitle {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-dim);
  margin-bottom: var(--space-xl);
}

.auth-footer {
  margin-top: var(--space-lg);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.auth-footer a {
  color: var(--green-dim);
  cursor: pointer;
  text-decoration: none;
}

.auth-footer a:hover {
  color: var(--green-primary);
}

/* ── Modal ────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
  padding: var(--space-xl);
}

.modal-overlay.hidden {
  display: none;
}

.modal-box {
  background: var(--bg-card);
  border: 1px solid var(--green-primary);
  box-shadow: var(--glow-lg);
  max-width: 480px;
  width: 100%;
  padding: var(--space-xl);
  position: relative;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-lg);
}

.modal-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  line-height: 1;
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--green-primary);
}

.modal-title {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--green-primary);
  text-shadow: var(--glow-md);
  letter-spacing: 3px;
  margin-bottom: var(--space-xs);
}

.modal-subtitle {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--amber);
  letter-spacing: 2px;
  margin-bottom: var(--space-md);
}

.modal-desc {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-dim);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.modal-price {
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--white-em);
  margin-bottom: var(--space-lg);
}

.modal-cta {
  width: 100%;
  text-align: center;
  margin-bottom: var(--space-sm);
}

.modal-cancel {
  width: 100%;
  text-align: center;
}

/* ── Challenge Screen ─────────────────────────────────────────── */
.challenge-layout {
  display: grid;
  grid-template-columns: 40% 60%;
  grid-template-rows: auto 1fr auto;
  min-height: calc(100vh - var(--header-height));
  width: 100%;
  gap: 0;
}

.challenge-panel-left {
  border-right: 1px solid var(--green-dark);
  padding: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  background: var(--bg-primary);
}

.challenge-panel-right {
  padding: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  position: relative;
}

.challenge-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.challenge-title {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--text-white);
  line-height: 1.2;
  text-shadow: var(--glow-sm);
}

.challenge-instruction {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  line-height: 1.7;
}

/* MCQ Options */
.mcq-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.mcq-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  border: 1px solid var(--green-dark);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  background: transparent;
  transition: border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
  text-align: left;
  width: 100%;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  line-height: 1.5;
}

.mcq-option:hover:not(:disabled) {
  border-color: var(--green-primary);
  background: rgba(0,255,65,0.04);
  box-shadow: inset 2px 0 0 var(--green-primary);
}

.mcq-option.selected {
  border-color: var(--green-primary);
  background: rgba(0,255,65,0.07);
  color: var(--green-primary);
  box-shadow: inset 2px 0 0 var(--green-primary);
}

.mcq-option.correct {
  border-color: var(--green-primary);
  background: rgba(0,255,65,0.12);
  color: var(--green-primary);
  box-shadow: inset 3px 0 0 var(--green-primary), var(--glow-sm);
}

.mcq-option.wrong {
  border-color: var(--red-alert);
  background: rgba(255,34,34,0.07);
  color: var(--red-alert);
}

.mcq-option:disabled {
  cursor: not-allowed;
}

.option-key {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--text-muted);
  min-width: 20px;
  padding-top: 1px;
}

.mcq-option.selected .option-key,
.mcq-option.correct .option-key {
  color: var(--green-primary);
}

.mcq-option.wrong .option-key {
  color: var(--red-alert);
}

/* Challenge Bottom Bar */
.challenge-bottom {
  grid-column: 1 / -1;
  border-top: 1px solid var(--green-dark);
  padding: var(--space-md) var(--space-xl);
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  background: var(--bg-primary);
}

.challenge-bottom .sys-message-box {
  flex: 1;
  min-height: 60px;
}

.challenge-actions {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-shrink: 0;
}

/* Chart Canvas */
.chart-wrap {
  width: 100%;
  max-width: 680px;
  position: relative;
}

.chart-canvas {
  width: 100%;
  display: block;
  cursor: crosshair;
}

.chart-canvas.submitted {
  cursor: default;
}

.chart-click-hint {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  white-space: nowrap;
}

/* ── Landing Page ─────────────────────────────────────────────── */
/* Built to read as the same instrument as the challenge screen: panels with
   labelled bars, a system line under the chart, dense data over marketing
   cards. Colours are tokens only — a palette change is planned, and raw hex
   here would drift out of sync with the rest of the app. */

.lp {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  padding: 0 var(--space-xl);
}

.lp-divider {
  border: none;
  border-top: 1px solid var(--green-dark);
  margin: 0;
}

.lp-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 4px;
  margin-bottom: var(--space-lg);
}

/* ── Hero ── */
.lp-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  gap: var(--space-2xl);
  align-items: center;
  /* Longhands only: a shorthand here would wipe out .lp's horizontal padding
     and run the copy into the viewport edge. */
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  min-height: 68vh;
}

.lp-crumb {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-bottom: var(--space-lg);
}
.lp-crumb b { color: var(--amber); font-weight: 400; }

.lp-h1 {
  font-family: var(--font-display);
  font-size: clamp(34px, 4.2vw, 56px);
  color: var(--white-em);
  letter-spacing: 1px;
  line-height: 1.04;
}
/* Amber, not the UI accent. Under the slate palette --green-primary is
   *darker* than --white-em, so using it here made the emphasised word quieter
   than the sentence around it — emphasis inverted. Amber is the one channel
   that reliably outranks white on this ground. */
.lp-h1 em {
  font-style: normal;
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.lp-sub {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--green-dim);
  line-height: 1.75;
  max-width: 46ch;
  margin-top: var(--space-md);
}

.lp-ctas {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-top: var(--space-xl);
}

.lp-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 1px;
  margin-top: var(--space-md);
}
.lp-note b { color: var(--green-dim); font-weight: 400; }

/* ── Terminal panel (chart) ── */
.lp-term {
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
}

.lp-term-bar {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--green-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--green-dim);
  letter-spacing: 1px;
}

.lp-term-body { padding: var(--space-md); }
.lp-term canvas { display: block; width: 100%; height: auto; }

.lp-sys {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-primary);
  border: 1px solid var(--green-dark);
  background: var(--bg-primary);
  padding: 10px var(--space-md);
  margin-top: var(--space-md);
  min-height: 40px;
}
.lp-sys .warn { color: var(--amber); }

/* ── Stat strip ── */
.lp-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--green-dark);
  border-bottom: 1px solid var(--green-dark);
}
.lp-cell {
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  border-right: 1px solid var(--green-dark);
}
.lp-cell:last-child { border-right: none; }
.lp-cell .n {
  font-family: var(--font-display);
  font-size: 42px;
  color: var(--green-primary);
  line-height: 1;
}
.lp-cell .l {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--green-dim);
  letter-spacing: 2px;
  margin-top: var(--space-sm);
}

/* ── Section ── */
.lp-section {
  padding-top: var(--space-2xl);
  padding-bottom: var(--space-2xl);
}

.lp-h2 {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  color: var(--white-em);
  letter-spacing: 1px;
  margin-bottom: var(--space-sm);
}

.lp-lede {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  line-height: 1.75;
  max-width: 62ch;
  margin-bottom: var(--space-xl);
}

/* ── Module table ── */
.lp-table-wrap { overflow-x: auto; }

.lp-table {
  width: 100%;
  /* Dense data reads better narrow. Full-bleed would strand the numbers
     half a screen away from the module they belong to. */
  max-width: 760px;
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: 12px;
  min-width: 520px;
}
.lp-table th:nth-child(2), .lp-table td:nth-child(2) { width: 110px; }
.lp-table th:nth-child(3), .lp-table td:nth-child(3) { width: 70px; }
.lp-table th:nth-child(4), .lp-table td:nth-child(4) { width: 110px; }
.lp-table th {
  text-align: left;
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--green-dark);
  padding: var(--space-sm) var(--space-md) var(--space-sm) 0;
}
.lp-table td {
  padding: 7px var(--space-md) 7px 0;
  color: var(--green-dim);
  border-bottom: 1px solid var(--border-default);
}
.lp-table td.mod  { color: var(--green-primary); letter-spacing: 1px; }
.lp-table td.open { color: var(--green-primary); }
.lp-table td.beta { color: var(--amber); }
.lp-table tr:hover td { background: var(--bg-card); }
.lp-table tr.final td { color: var(--amber); }

/* ── Steps ── */
.lp-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}
.lp-step {
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
  padding: var(--space-lg);
}
.lp-step .n {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
}
.lp-step .t {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--green-primary);
  letter-spacing: 1px;
  margin: var(--space-xs) 0 var(--space-sm);
}
.lp-step .d {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-dim);
  line-height: 1.7;
}

/* ── Playable demo ── */
.lp-demo .lp-term-body { padding: var(--space-lg); }

.lp-demo-task {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}
.lp-demo-task b { color: var(--white-em); font-weight: 400; }

.lp-demo-tag { color: var(--amber); }

.lp-demo-canvas-wrap { position: relative; }
.lp-demo canvas {
  display: block;
  width: 100%;
  height: auto;
  cursor: crosshair;
  border: 1px solid var(--border-default);
}

.lp-demo-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-md);
  flex-wrap: wrap;
}

.lp-demo-hint {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.lp-sys .ok { color: var(--green-primary); }

/* ── Sample questions ── */
.lp-samples {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}
.lp-sample {
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
  padding: var(--space-lg);
}
.lp-sample .meta {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
  margin-bottom: var(--space-sm);
}
.lp-sample .meta .xp { color: var(--amber); }
.lp-sample .q {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  line-height: 1.7;
}

/* ── Builder note ── */
.lp-note-box {
  border-left: 2px solid var(--green-dark);
  padding-left: var(--space-lg);
  max-width: 68ch;
}
.lp-note-box p {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--green-dim);
  line-height: 1.85;
  margin-bottom: var(--space-md);
}
.lp-note-box .sign {
  color: var(--text-muted);
  font-size: 12px;
  letter-spacing: 1px;
}

/* ── FAQ ── */
.lp-faq { max-width: 780px; }
.lp-faq-item { border-bottom: 1px solid var(--border-default); }

.lp-faq-q {
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  background: none;
  border: none;
  text-align: left;
  padding: var(--space-md) 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 1px;
  color: var(--green-dim);
  cursor: pointer;
}
.lp-faq-q:hover { color: var(--green-primary); }
.lp-faq-q .caret {
  color: var(--text-muted);
  font-size: 11px;
  transition: transform var(--transition-base);
  flex: none;
}
.lp-faq-item.open .lp-faq-q { color: var(--green-primary); }
.lp-faq-item.open .caret { transform: rotate(90deg); color: var(--green-primary); }

.lp-faq-a { padding: 0 0 var(--space-lg) calc(var(--space-md) + 11px); }
.lp-faq-a p {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 66ch;
}

/* ── Practice terminal showcase ── */
/* A different shape from the sections around it on purpose: one wide
   screenshot of the real thing, then four ways in. Every section being
   label, heading, paragraph, grid is what made the page feel repetitive. */
.lp-section { scroll-margin-top: calc(var(--header-height) + 16px); }

.lp-shot {
  display: block;
  text-decoration: none;
  transition: border-color var(--transition-base);
}
.lp-shot:hover { border-color: var(--green-primary); }
.lp-shot img {
  display: block;
  width: 100%;
  height: auto;
}

.lp-tools {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-md);
}
.lp-tool {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
  padding: var(--space-lg);
  text-decoration: none;
  transition: border-color var(--transition-base), background var(--transition-base);
}
.lp-tool:hover { border-color: var(--green-primary); background: var(--bg-card-hover); }
.lp-tool .k {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 2px;
}
.lp-tool .t {
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--white-em);
  letter-spacing: 1px;
  line-height: 1.1;
}
.lp-tool .d {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--green-dim);
  line-height: 1.7;
}
.lp-tool .go {
  margin-top: auto;
  padding-top: var(--space-sm);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--green-primary);
  letter-spacing: 2px;
}

/* ── Closing call to action ── */
.lp-final { text-align: center; border-top: 1px solid var(--green-dark); }
.lp-final .lp-lede { margin-left: auto; margin-right: auto; }
.lp-final .lp-ctas { justify-content: center; }

@media (max-width: 1024px) {
  .lp-tools { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .lp-tools { grid-template-columns: 1fr; }
}

/* ── Footer ── */
.lp-footer {
  border-top: 1px solid var(--green-dark);
  padding: var(--space-lg) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
}
.lp-footer-row {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.lp-footer a { color: var(--text-muted); text-decoration: none; letter-spacing: 2px; }
.lp-footer a:hover { color: var(--green-dim); }

.lp-disclaimer {
  max-width: var(--max-width);
  margin: var(--space-md) auto 0;
  font-size: 10.5px;
  color: var(--text-muted);
  line-height: 1.7;
  opacity: 0.85;
}

/* ── Dashboard ────────────────────────────────────────────────── */
.dashboard-topbar {
  border-bottom: 1px solid var(--green-dark);
  padding: var(--space-md) var(--space-xl);
  background: rgba(10,15,10,0.8);
}

.module-progress-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.module-progress-name {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 2px;
  white-space: nowrap;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

/* ── Profile Page ─────────────────────────────────────────────── */
.profile-header {
  display: flex;
  align-items: flex-end;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid var(--green-dark);
  margin-bottom: var(--space-xl);
}

.profile-avatar {
  width: 80px;
  height: 80px;
  border: 1px solid var(--green-primary);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--green-primary);
  text-shadow: var(--glow-md);
  flex-shrink: 0;
}

.profile-name {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--text-white);
  letter-spacing: 2px;
}

.profile-xp-big {
  font-family: var(--font-display);
  font-size: 28px;
  color: var(--amber);
  text-shadow: var(--glow-amber);
}

.badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: var(--space-md);
}

.badge-card {
  border: 1px solid var(--green-dark);
  background: var(--bg-card);
  padding: var(--space-lg);
  text-align: center;
}

.badge-card.earned {
  border-color: var(--amber);
  box-shadow: var(--glow-amber);
}

.badge-icon {
  font-size: 32px;
  margin-bottom: var(--space-sm);
  display: block;
}

.badge-name {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--amber);
  letter-spacing: 1px;
}

.badge-req {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ── Subscribe Page ───────────────────────────────────────────── */
.subscribe-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl);
}

.subscribe-box {
  width: 100%;
  max-width: 520px;
  border: 1px solid var(--amber);
  background: var(--bg-card);
  padding: var(--space-2xl);
  box-shadow: var(--glow-amber);
}

.sub-header-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 3px;
  margin-bottom: var(--space-md);
}

.sub-title {
  font-family: var(--font-display);
  font-size: 48px;
  color: var(--amber);
  text-shadow: var(--glow-amber);
  letter-spacing: 4px;
  margin-bottom: var(--space-xs);
}

.sub-price {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--text-white);
  margin-bottom: var(--space-xl);
}

.sub-features {
  list-style: none;
  margin-bottom: var(--space-xl);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.sub-features li {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--green-dim);
  padding-left: var(--space-lg);
  position: relative;
}

.sub-features li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--green-primary);
}

.sub-note {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  margin-top: var(--space-md);
  line-height: 1.7;
}

/* ── Utilities ────────────────────────────────────────────────── */
.hidden { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.text-center { text-align: center; }
.text-green { color: var(--green-primary); }
.text-amber { color: var(--amber); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--green-dim); }
.glow { text-shadow: var(--glow-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.w-full { width: 100%; }

/* ── Scrollbar ────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--green-dark); }
::-webkit-scrollbar-thumb:hover { background: var(--green-dim); }

/* ── Selection ────────────────────────────────────────────────── */
::selection { background: rgba(0,255,65,0.2); color: var(--green-primary); }

/* ── Large screens (1280px+) ──────────────────────────────────── */
@media (min-width: 1280px) {
  :root {
    --max-width: 1500px;
    --header-height: 64px;
  }

  html, body { font-size: 18px; }

  /* Header */
  .site-header      { padding: 0 3rem; }
  .header-logo      { font-size: 28px; }
  .header-logo span { font-size: 18px; }
  .hdr-tab, .hdr-user, .hdr-link, .hdr-cta { font-size: 13px; }
  .hdr-rank-label   { font-size: 12px; }

  /* Layout */
  .page { padding: var(--space-xl) 3rem; }

  /* Buttons */
  .btn       { font-size: 22px; padding: 11px 26px; }
  .btn-sm    { font-size: 16px; padding: 6px 14px; }
  .btn-lg    { font-size: 32px; padding: 16px 44px; }
  .btn-ghost { font-size: 20px; }

  /* Module & card headings */
  .module-header   { font-size: 30px; }
  .card-title      { font-size: 22px; }
  .card-type-badge { font-size: 15px; }

  /* Challenge screen */
  .challenge-title       { font-size: 42px; }
  .challenge-instruction { font-size: 16px; }
  .challenge-panel-left  { padding: var(--space-xl) 2rem; }
  .challenge-panel-right { padding: var(--space-xl); }

  /* Bottom bar */
  .challenge-bottom       { padding: var(--space-md) 2rem; }
  .challenge-actions .btn { min-height: 48px; font-size: 20px; }

  /* MCQ options */
  .mcq-option { font-size: 16px; padding: 10px var(--space-lg); }
  .option-key { font-size: 22px; }

  /* Briefing / generic modal */
  .modal-box   { max-width: 900px; }
  .modal-title { font-size: 46px; }

  /* Forms */
  .form-label { font-size: 18px; }
  .form-input { font-size: 16px; padding: 12px 16px; }

  /* Auth box */
  .auth-box   { max-width: 500px; }
  .auth-title { font-size: 42px; }

  /* Subscribe box */
  .subscribe-box { max-width: 620px; }

  /* Dashboard grid */
  .dashboard-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }

  /* Profile */
  .profile-name   { font-size: 46px; }
  .profile-xp-big { font-size: 36px; }
  .badge-name     { font-size: 22px; }
  .badge-icon     { font-size: 42px; }

  /* Sys message box */
  .sys-message-box { font-size: 16px; }
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
  /* ── Core layout ── */
  .challenge-layout      { grid-template-columns: 1fr; }
  .challenge-panel-right { min-height: 320px; padding: var(--space-sm); }
  .challenge-bottom      { flex-direction: column; align-items: stretch; }
  .site-header           { padding: 0 var(--space-md); }
  .page                  { padding: var(--space-md); }
  .profile-header        { flex-direction: column; align-items: flex-start; }

  /* ── Header ── */
  /* The tabs, Log in and the username go into the menu; the bar keeps the
     logo, your rank (or Start learning) and the menu button. */
  .header-logo      { font-size: 18px; letter-spacing: 1px; }
  .header-logo span { font-size: 12px; }
  .hdr-right        { gap: var(--space-sm); }
  .hdr-nav, .hdr-link, .hdr-user-name, .hdr-chev { display: none; }
  .hdr-menu-nav     { display: block; }
  .hdr-guest-menu   { display: block; }
  .hdr-icon-only    { display: block; }
  .hdr-user         { padding: 0 8px; }
  .hdr-rank         { min-width: 0; }
  .hdr-cta          { padding: 7px 10px; font-size: 11px; }

  /* ── Buttons ── */
  .btn-lg { font-size: 18px; padding: 10px 20px; }

  /* ── Landing ── */
  .lp              { padding: 0 var(--space-md); }
  .lp-hero         { grid-template-columns: 1fr; gap: var(--space-xl); min-height: 0;
                     padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
  .lp-h1           { font-size: 32px; }
  .lp-section      { padding-top: var(--space-xl); padding-bottom: var(--space-xl); }
  .lp-strip        { grid-template-columns: repeat(2, 1fr); }
  .lp-cell         { border-bottom: 1px solid var(--green-dark); }
  .lp-cell:nth-child(2) { border-right: none; }
  .lp-cell .n      { font-size: 34px; }
  .lp-steps        { grid-template-columns: 1fr; }
  .lp-samples      { grid-template-columns: 1fr; }
  .lp-demo .lp-term-body { padding: var(--space-md); }
  .lp-note-box     { padding-left: var(--space-md); }
  .lp-footer       { padding: var(--space-md); }
  .lp-footer-row   { flex-direction: column; gap: var(--space-sm); text-align: center; }

  /* ── Dashboard topbar ── */
  .dashboard-topbar     { padding: var(--space-sm) var(--space-md); }
  .module-progress-row  { flex-wrap: wrap; row-gap: var(--space-sm); }
  .module-progress-name { font-size: 10px; }

  /* ── Challenge screen ── */
  .challenge-panel-left { padding: var(--space-md); }
  .challenge-title      { font-size: 22px; }
  .challenge-actions    { flex-wrap: wrap; gap: var(--space-sm); }
  .challenge-actions .btn { flex: 1 1 120px; text-align: center; font-size: 14px; padding: 8px 10px; }

  /* ── Briefing overlay ── */
  .briefing-body     { grid-template-columns: 1fr !important; }
  .briefing-text-col { border-right: none !important; border-bottom: 1px solid var(--brief-faint); }
  .briefing-diag-col { padding: 16px; }

  /* ── Profile ── */
  .profile-name   { font-size: 26px; }
  .profile-xp-big { font-size: 22px; }
  .module-header  { font-size: 18px; padding: var(--space-md) 0 var(--space-sm); }

  /* ── Auth pages ── */
  .auth-title     { font-size: 26px; }
  .auth-container { align-items: flex-start; padding-top: var(--space-2xl); }

  /* ── Boot screen ── */
  #boot-screen  { overflow: hidden; }
  #boot-content { padding: var(--space-sm); }
  #boot-logo    { font-size: 6px; }
  #boot-subtitle { font-size: 15px; letter-spacing: 2px; }
  #boot-lines   { font-size: 11px; }
}

/* ── MODULE SESSION ────────────────────────────────────────────
   The continuous in-module flow. Chrome is deliberately minimal: position
   within THIS module only, never a curriculum-wide remaining count.
   Tokens only — a palette change is planned and raw hex would drift. */

.session-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: var(--bg-primary);
}

.session-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--green-dark);
}

.session-label   { color: var(--text-secondary); }
.session-counter { color: var(--text-muted); }
.session-xp      { color: var(--amber); margin-left: auto; }

.session-exit {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  background: transparent;
  border: 1px solid var(--border-locked);
  padding: 3px 10px;
  cursor: pointer;
  transition: color var(--transition-base), border-color var(--transition-base);
}
.session-exit:hover { color: var(--text-primary); border-color: var(--border-active); }

/* The shared track is flex:1 for its row context; in this column it must not
   stretch vertically. */
.session-progress { flex: 0 0 auto; width: 100%; }

.session-stage { flex: 1; display: flex; flex-direction: column; }

/* The challenge layout sizes itself against the global header, which a session
   does not render. Inside the stage it simply fills what is left. */
.session-stage .challenge-layout { min-height: 0; flex: 1; }

.session-hints {
  padding: var(--space-sm) var(--space-xl);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  border-top: 1px solid var(--border-locked);
  min-height: 28px;
}

/* Beats — module complete, preview wall. Full-stage terminal moments. */
.session-beat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-xl);
  font-family: var(--font-mono);
  text-align: center;
}

.session-beat-line {
  font-size: 15px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
  line-height: 2;
}

.session-beat-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--space-lg);
}

@media (max-width: 768px) {
  .session-bar   { padding: var(--space-sm) var(--space-md); gap: var(--space-sm); font-size: 10px; }
  .session-label { max-width: 45%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .session-hints { padding: var(--space-sm) var(--space-md); font-size: 9px; }
  .session-beat-line { font-size: 13px; }
}

/* ── DASHBOARD RESUME ──────────────────────────────────────────
   [CONTINUE] is the primary way back in; the module grid below is secondary. */

.dash-resume {
  border: 1px solid var(--border-default);
  background: var(--bg-card);
  padding: var(--space-lg);
  margin-bottom: var(--space-xl);
  font-family: var(--font-mono);
}

.dash-resume-heading {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: var(--space-xs);
}

.dash-resume-where {
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}

.dash-resume-actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  align-items: center;
}

@media (max-width: 768px) {
  .dash-resume       { padding: var(--space-md); }
  .dash-resume-where { font-size: 11px; }
  .dash-resume-actions .btn { flex: 1 1 auto; text-align: center; }
}

/* ── MODULE NAV ────────────────────────────────────────────────
   Persistent jump bar on the dashboard. Horizontally scrollable rather than
   wrapping, so it stays one line on any width. Tokens only. */

.module-nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) 0 0;
  font-family: var(--font-mono);
}

.module-nav-label {
  font-size: 10px;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  flex: 0 0 auto;
}

.module-nav-strip {
  display: flex;
  gap: var(--space-xs);
  overflow-x: auto;
  padding-bottom: var(--space-xs);
  scrollbar-width: thin;
}

.module-nav-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: 0 0 auto;
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  background: transparent;
  border: 1px solid var(--border-locked);
  color: var(--text-muted);
  cursor: pointer;
  transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base);
}

.module-nav-tab:hover { color: var(--text-primary); border-color: var(--border-active); }

.module-nav-num  { font-weight: bold; }
.module-nav-name { white-space: nowrap; }
.module-nav-mark { font-size: 10px; }

.module-nav-tab.is-done     { color: var(--text-secondary); border-color: var(--border-default); }
.module-nav-tab.is-active   { color: var(--text-primary);   border-color: var(--border-active); background: var(--bg-card); }
.module-nav-tab.is-test-due { color: var(--amber);          border-color: var(--amber); }
.module-nav-tab.is-gated    { color: var(--text-muted);     border-color: var(--border-locked); opacity: 0.55; }
.module-nav-tab.is-gated:hover { opacity: 0.8; color: var(--amber); border-color: var(--amber); }

@media (max-width: 768px) {
  .module-nav       { gap: var(--space-sm); }
  .module-nav-label { display: none; }
  .module-nav-name  { display: none; }   /* numbers only — keeps the strip usable on a phone */
  .module-nav-tab   { padding: 6px 10px; font-size: 12px; }
}