/* ═══════════════════════════════════════════════════
   proofofboredom.com — learn/learn.css
   PyLearnXP learning app, built on POB tokens.
   All selectors scoped under .learn-page. Default light
   (set inline in <head>); follows the site theme toggle.
   ═══════════════════════════════════════════════════ */

.learn-page {
  background: var(--bg);
  min-height: 100vh;
}

/* ── HERO / DASHBOARD ── */

.learn-hero {
  padding: 9rem 3rem 2.5rem;
  max-width: 1060px;
  margin: 0 auto;
}
.learn-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}
.learn-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 0.6rem;
}
.learn-sub { color: var(--text-2); font-size: 1.05rem; max-width: 560px; }
.learn-stats { display: flex; align-items: center; gap: 0.6rem; margin-top: 1.4rem; flex-wrap: wrap; }

.learn-container {
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 3rem 6rem;
}
@media (max-width: 700px) {
  .learn-hero { padding: 7rem 1.4rem 2rem; }
  .learn-container { padding: 0 1.4rem 5rem; }
}

/* ── PILLS ── */

.learn-page .stat-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 0.35rem 0.8rem;
  border-radius: 99px;
  border: 1px solid var(--border-mid);
  color: var(--text-2);
  white-space: nowrap;
}
.learn-page .stat-pill.xp { color: var(--accent); border-color: var(--accent); }

.learn-page .btn-auth {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  padding: 0.4rem 0.9rem;
  border-radius: 99px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  transition: opacity var(--dur) var(--ease);
}
.learn-page .btn-auth:hover { opacity: 0.85; }
.learn-page .btn-auth.ghost { background: transparent; color: var(--text-2); border-color: var(--border-mid); }

/* ── CONTINUE CARD ── */

.continue-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  flex-wrap: wrap;
  border: 1px solid var(--accent);
  border-radius: 14px;
  padding: 1.6rem 1.8rem;
  margin-bottom: 3rem;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 9%, var(--bg-2)), var(--bg-2));
}
.continue-card .label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}
.continue-card h2 { font-size: 1.35rem; color: var(--text); margin-bottom: 0.15rem; }
.continue-card .cc-sub { color: var(--text-3); font-size: 0.85rem; }

.btn-continue {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  transition: opacity var(--dur) var(--ease);
}
.btn-continue:hover { opacity: 0.85; }

/* ── SECTION HEADS ── */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 2.6rem 0 1.1rem;
}
.section-head h2 { font-size: 1.15rem; color: var(--text); }
.learn-page .muted { color: var(--text-3); font-size: 0.8rem; font-family: var(--font-mono); }

/* ── MODULE GRID ── */

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 0.9rem;
}
.module-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1.3rem;
  background: var(--bg-2);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.module-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.module-card.locked { opacity: 0.5; cursor: default; }
.module-card.locked:hover { border-color: var(--border); transform: none; }
.module-card .num {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  color: var(--text-3);
  text-transform: uppercase;
}
.module-card h3 { font-size: 0.98rem; color: var(--text); }
.module-card p { color: var(--text-2); font-size: 0.82rem; line-height: 1.5; }
.module-card .meta { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--text-3); font-family: var(--font-mono); }
.module-card .row { display: flex; align-items: center; justify-content: space-between; }

.badge-soon {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 1px solid var(--border-mid);
  color: var(--text-3);
  border-radius: 99px;
  padding: 0.15rem 0.55rem;
}

.progress-bar { height: 5px; border-radius: 99px; background: var(--bg-3); overflow: hidden; }
.progress-bar > span { display: block; height: 100%; background: var(--accent); border-radius: 99px; }

/* ── BADGES ── */

.badge-shelf { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.badge-item { width: 68px; text-align: center; }
.badge-item .icon {
  width: 48px; height: 48px;
  margin: 0 auto 0.3rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  background: var(--bg-2);
  border: 1px solid var(--border);
}
.badge-item.earned .icon { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 12%, var(--bg-2)); }
.badge-item:not(.earned) { opacity: 0.3; }
.badge-item .label { font-size: 0.6rem; color: var(--text-3); font-family: var(--font-mono); }

/* ── LESSON SCREEN ── */

.lesson-screen { overflow: hidden; }
.learn-nav-stats { display: flex; align-items: center; gap: 0.5rem; }

.learn-shell {
  display: grid;
  grid-template-columns: minmax(340px, 1fr) minmax(400px, 1.1fr);
  height: 100vh;
  padding-top: 4.6rem;
}
@media (max-width: 940px) {
  .learn-shell { grid-template-columns: 1fr; height: auto; min-height: 100vh; }
  .lesson-screen { overflow: auto; }
  .code-pane {
    position: fixed; inset: auto 0 0 0; height: 48px; z-index: 150;
    border-top: 1px solid var(--border-mid);
    transition: height 0.25s var(--ease);
    overflow: hidden;
  }
  .code-pane.expanded { height: 80vh; }
  .code-pane-handle { display: flex !important; }
  .lesson-pane { padding-bottom: 70px; }
}

.lesson-pane {
  overflow-y: auto;
  padding: 1.8rem 2.4rem 3rem;
  border-right: 1px solid var(--border);
}
.crumbs {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.8rem;
}
.lesson-pane h1 { font-size: 1.5rem; color: var(--text); margin-bottom: 1rem; letter-spacing: -0.01em; }
.lesson-body { color: var(--text-2); line-height: 1.75; font-size: 0.95rem; }
.lesson-body p { margin-bottom: 0.9rem; }
.lesson-body strong { color: var(--text); }
.lesson-body code {
  font-family: var(--font-mono);
  font-size: 0.84em;
  background: var(--bg-3);
  border-radius: 4px;
  padding: 0.1em 0.4em;
}
.lesson-body pre {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  margin-bottom: 0.9rem;
}
.lesson-body pre code { background: none; padding: 0; font-size: 0.82rem; }
.lesson-body ul { padding-left: 1.2rem; margin-bottom: 0.9rem; }

.checkpoint {
  border: 1px dashed var(--border-mid);
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin: 1.1rem 0;
  font-size: 0.85rem;
  color: var(--text-2);
}
.checkpoint .q {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.lesson-nav { display: flex; gap: 0.6rem; margin-top: 2rem; flex-wrap: wrap; }
.lesson-nav .cbtn { text-decoration: none; }

/* ── CODE PANE ── */

.code-pane {
  display: flex;
  flex-direction: column;
  background: var(--bg-2);
}
.code-pane-handle {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-3);
  background: var(--bg-2);
}

.code-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
}
.tier-tabs { display: flex; gap: 0.4rem; flex-wrap: wrap; }
.tier-tab {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.04em;
  padding: 0.4rem 0.8rem;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.tier-tab:hover { color: var(--text-2); border-color: var(--border-mid); }
.tier-tab[data-tier="scaffolded"].active { border-color: #34a86a; color: #34a86a; }
.tier-tab[data-tier="standard"].active { border-color: #c98a1b; color: #c98a1b; }
.tier-tab[data-tier="challenge"].active { border-color: #d05252; color: #d05252; }

.code-actions { display: flex; gap: 0.4rem; }
.cbtn {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: 0.45rem 0.9rem;
  border-radius: 7px;
  border: 1px solid var(--border-mid);
  background: transparent;
  color: var(--text-2);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.cbtn:hover { border-color: var(--accent); color: var(--accent); }
.cbtn:disabled { opacity: 0.45; cursor: wait; }
.cbtn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.cbtn-primary:hover { color: #fff; opacity: 0.85; }

.exercise-prompt {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-2);
  line-height: 1.55;
  max-height: 130px;
  overflow-y: auto;
}
.exercise-prompt strong { color: var(--text); }
.exercise-prompt code { font-family: var(--font-mono); font-size: 0.82em; background: var(--bg-3); border-radius: 4px; padding: 0.05em 0.35em; }

.hint-box {
  display: none;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  color: #c98a1b;
  background: color-mix(in srgb, #c98a1b 7%, var(--bg-2));
}
.hint-box.show { display: block; }

#editor-host { flex: 1; min-height: 150px; overflow: auto; }
.CodeMirror {
  height: 100% !important;
  font-family: var(--font-mono) !important;
  font-size: 0.86rem !important;
}
/* Light theme: restyle the material CodeMirror theme to a light editor */
[data-theme="light"] .cm-s-material.CodeMirror { background: #fafafa; color: #383a42; }
[data-theme="light"] .cm-s-material .CodeMirror-gutters { background: #f0f0f1; border-right: 1px solid rgba(0,0,0,0.06); }
[data-theme="light"] .cm-s-material .CodeMirror-linenumber { color: #a0a1a7; }
[data-theme="light"] .cm-s-material .CodeMirror-cursor { border-left: 1px solid #383a42; }
[data-theme="light"] .cm-s-material span.cm-keyword { color: #a626a4; }
[data-theme="light"] .cm-s-material span.cm-string { color: #50a14f; }
[data-theme="light"] .cm-s-material span.cm-number { color: #986801; }
[data-theme="light"] .cm-s-material span.cm-comment { color: #a0a1a7; font-style: italic; }
[data-theme="light"] .cm-s-material span.cm-def,
[data-theme="light"] .cm-s-material span.cm-variable { color: #383a42; }
[data-theme="light"] .cm-s-material span.cm-builtin { color: #0071e3; }
[data-theme="light"] .cm-s-material span.cm-operator { color: #383a42; }

.output-pane {
  border-top: 1px solid var(--border);
  background: #101216;
  color: #d7e2d9;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  line-height: 1.6;
  padding: 0.8rem 1rem;
  max-height: 32%;
  min-height: 76px;
  overflow-y: auto;
  white-space: pre-wrap;
}
.output-pane .ok { color: #5fbe85; }
.output-pane .err { color: #e07a7a; }
.output-pane .hint-line { color: #7fa9d6; }

/* ── AUTH MODAL / TOAST / TIMER (shared chrome) ── */

.learn-page .modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.5);
  display: none;
  align-items: center; justify-content: center;
  z-index: 300;
}
.learn-page .modal-backdrop.open { display: flex; }
.learn-page .modal {
  width: 100%; max-width: 380px;
  background: var(--bg);
  border: 1px solid var(--border-mid);
  border-radius: 14px;
  padding: 1.8rem;
}
.learn-page .modal h2 { color: var(--text); font-size: 1.2rem; margin-bottom: 0.2rem; }
.learn-page .modal .sub { color: var(--text-3); font-size: 0.82rem; margin-bottom: 1.1rem; }
.learn-page .field { margin-bottom: 0.9rem; }
.learn-page .field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  margin-bottom: 0.35rem;
}
.learn-page .field input {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border-mid);
  border-radius: 7px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 0.6rem 0.75rem;
}
.learn-page .field input:focus { outline: none; border-color: var(--accent); }
.learn-page .field .error { display: none; color: #d05252; font-size: 0.72rem; margin-top: 0.25rem; }
.learn-page .field.invalid input { border-color: #d05252; }
.learn-page .field.invalid .error { display: block; }
.learn-page .form-msg { display: none; font-size: 0.8rem; padding: 0.5rem 0.7rem; border-radius: 7px; margin-bottom: 0.8rem; }
.learn-page .form-msg.show { display: block; }
.learn-page .form-msg.error { background: color-mix(in srgb, #d05252 10%, var(--bg)); color: #d05252; }
.learn-page .form-msg.ok { background: color-mix(in srgb, #34a86a 10%, var(--bg)); color: #34a86a; }
.learn-page .modal-switch { text-align: center; font-size: 0.8rem; color: var(--text-3); margin-top: 0.8rem; }
.learn-page .modal-switch a { color: var(--accent); }
.learn-page .btn-block {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.65rem;
  border-radius: 7px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #fff;
  cursor: pointer;
}
.learn-page .btn-block.ghost { background: transparent; color: var(--text-3); border-color: transparent; margin-top: 0.6rem; }

.recovery-code-box {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  letter-spacing: 0.12em;
  text-align: center;
  padding: 0.9rem;
  margin: 0.9rem 0;
  border: 1px dashed var(--accent);
  border-radius: 8px;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, var(--bg));
  user-select: all;
}

.learn-page .toast {
  position: fixed;
  bottom: 1.6rem; left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg);
  border: 1px solid var(--accent);
  border-radius: 8px;
  padding: 0.7rem 1.2rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text);
  opacity: 0;
  pointer-events: none;
  z-index: 400;
}
.learn-page .toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

#confetti-canvas { position: fixed; inset: 0; pointer-events: none; z-index: 390; }

#focus-timer {
  position: fixed;
  left: 1.1rem; bottom: 1.1rem;
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--border-mid);
  border-radius: 99px;
  padding: 0.5rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-2);
  z-index: 250;
  font-variant-numeric: tabular-nums;
}
#focus-timer.running { border-color: var(--accent); }
#focus-timer .ft-toggle { background: none; border: none; color: var(--text-2); cursor: pointer; font-size: 0.85rem; }
#focus-timer .ft-mode { font-size: 0.62rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-3); }

/* French-lessons notice — visible only when the site language is FR */
.fr-note { display: none; }
html[lang="fr"] .fr-note {
  display: block;
  position: relative;
  z-index: 150;
  margin: 4.8rem 0 -4.2rem;
  padding: 0.55rem 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-2);
  background: color-mix(in srgb, var(--accent) 8%, var(--bg-2));
  border-bottom: 1px solid var(--border);
}
html[lang="fr"] .lesson-screen .fr-note { margin: 4.6rem 0 -4.6rem; }
