/* =====================================================================
   Slopforge Academy — The Almanac
   A navigator's almanac / nautical ephemeris, rendered on the web.
   Warm paper, ink-blue, a single copper accent. Dense registers,
   hard rules, Saira + JetBrains Mono. Quiet confidence.
   ===================================================================== */

:root {
  --paper:    #ece6d6;
  --paper-2:  #e3dbc6;
  --ink:      #19212e;
  --ink-soft: #5a6173;
  --blue:     #1c3a5e;
  --copper:   #b1442a;
  --rule:      rgba(25, 33, 46, .20);
  --rule-soft: rgba(25, 33, 46, .10);
  --code-bg:  #141b27;
  --code-ink: #d8e0ec;

  --cond: "Saira Condensed", system-ui, sans-serif;
  --sans: "Saira", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;

  --wrap: 1160px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  min-height: 100vh;
}

/* faint multiply grain over the whole page */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .34;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.7' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img, svg, video { max-width: 100%; height: auto; }

a { color: var(--blue); }

::selection { background: rgba(177, 68, 42, .22); }

/* ---------------------------------------------------------------- shell */
.app-shell {
  position: relative;
  z-index: 1;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 34px 72px;
}

main {
  position: relative;
  z-index: 1;
}

section { margin-top: 38px; }

/* ---------------------------------------------------------------- type */
h1, h2, h3, h4 { font-family: var(--cond); font-weight: 800; letter-spacing: .01em; text-transform: uppercase; line-height: 1.02; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.5rem, 3vw, 1.95rem); }
h3 { font-size: 1.32rem; font-weight: 700; }
h4 { font-size: 1.02rem; font-weight: 700; letter-spacing: .04em; }

p { color: var(--ink); }

.eyebrow {
  display: inline-block;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--copper);
}

.small { font-size: .85rem; color: var(--ink-soft); }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 60;
  background: var(--blue);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 10px 16px;
  text-decoration: none;
}
.skip-link:focus { left: 0; }

/* ---------------------------------------------------------------- topbar */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px 18px;
  padding: 16px 0 14px;
  margin-bottom: 8px;
  background: var(--paper);
  border-bottom: 3px double var(--ink);
}
.brand {
  display: flex;
  align-items: center;
  gap: 13px;
  text-decoration: none;
  color: var(--ink);
  min-width: 0;
}
.brand .mark {
  flex: none;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  background: var(--blue);
  color: var(--paper);
  font-family: var(--cond);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: .02em;
}
.brand-copy { display: flex; flex-direction: column; min-width: 0; }
.brand-copy strong {
  font-family: var(--cond);
  font-weight: 800;
  font-size: 1.32rem;
  text-transform: uppercase;
  letter-spacing: .02em;
  line-height: 1;
}
.brand-copy span {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: .04em;
  color: var(--ink-soft);
  margin-top: 3px;
}
.top-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-left: auto;
}

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 10px 15px;
  cursor: pointer;
  transition: background .14s ease, color .14s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--paper-2); }
.btn:focus-visible { outline: 2px solid var(--copper); outline-offset: 2px; }
.btn.primary { background: var(--blue); border-color: var(--blue); color: var(--paper); }
.btn.primary:hover { background: #16314f; }
.btn.danger { border-color: var(--copper); color: var(--copper); }
.btn.danger:hover { background: rgba(177, 68, 42, .1); }
.btn:disabled { opacity: .45; cursor: not-allowed; }

/* ---------------------------------------------------------------- chips */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink);
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 5px 10px;
  text-decoration: none;
}
a.chip:hover { border-color: var(--ink); }
.chip.active { border-color: var(--copper); color: var(--copper); background: rgba(177, 68, 42, .08); }

.badge-row { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

/* ---------------------------------------------------------------- section head */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
  margin-bottom: 18px;
}
.section-head.compact { border-bottom: 1px solid var(--rule); }
.section-head p { color: var(--ink-soft); font-size: .92rem; max-width: 64ch; margin-top: 4px; }
.section-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- masthead / hero */
.hero {
  text-align: center;
  padding: 30px 0 26px;
  border-bottom: 1px solid var(--rule);
}
.hero > div:first-child { display: flex; flex-direction: column; align-items: center; }
.hero h1, .hero .glitch {
  font-family: var(--cond);
  font-weight: 800;
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  line-height: .94;
  text-transform: uppercase;
  letter-spacing: .01em;
  margin: 6px 0 8px;
}
.hero-copy {
  font-size: 1.06rem;
  color: var(--ink);
  max-width: 62ch;
  margin: 0 auto;
}
/* the side register becomes the standings panel */
.hero-panel {
  margin: 24px auto 0;
  max-width: 760px;
  border: 1px solid var(--ink);
  background: var(--paper-2);
}
.signal-art { display: none; }
.terminal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 16px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.terminal-head .pulse {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--copper);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .3; } }
.terminal-body { padding: 16px; }
.stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--rule);
}
.stat-grid .stat {
  padding: 14px 10px;
  text-align: center;
  border-left: 1px solid var(--rule-soft);
}
.stat-grid .stat:first-child { border-left: 0; }
.stat b {
  display: block;
  font-family: var(--cond);
  font-weight: 800;
  font-size: 1.7rem;
  color: var(--copper);
  line-height: 1;
}
.stat span {
  display: block;
  margin-top: 5px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.terminal-body .small { margin-top: 14px; text-align: left; }

/* ---------------------------------------------------------------- cockpit / reckoning */
.cockpit {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  border: 1px solid var(--ink);
  background: var(--paper-2);
  padding: 20px 22px;
}
.cockpit h2 { font-size: 1.5rem; margin: 6px 0 4px; }
.cockpit p { color: var(--ink-soft); font-size: .9rem; }
.cockpit-actions { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------------------------------------------------------------- study sprint */
.study-sprint { margin-top: 30px; }
.study-sprint.compact { margin-top: 18px; }
.sprint-list { display: grid; gap: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.sprint-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--rule-soft);
}
.sprint-item:last-child { border-bottom: 0; }
.sprint-item:hover { background: rgba(177, 68, 42, .06); }
.sprint-index {
  flex: none;
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--copper);
  width: 22px;
}
.sprint-item strong { display: block; font-family: var(--cond); font-weight: 700; font-size: 1.12rem; text-transform: uppercase; letter-spacing: .01em; }
.sprint-item small { font-family: var(--mono); font-size: 10.5px; color: var(--ink-soft); }
.sprint-item .badge-row { margin-left: auto; }

/* ---------------------------------------------------------------- toolbar + fields */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}
.field, .select {
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 10px 12px;
  min-width: 0;
}
.field { flex: 1 1 240px; }
.field::placeholder { color: var(--ink-soft); }
.select { flex: 0 1 auto; cursor: pointer; }
.field:focus, .select:focus { outline: 2px solid var(--copper); outline-offset: 1px; }

.filter-state { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 18px; }

/* ---------------------------------------------------------------- catalog */
.catalog {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 0;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
.course-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 18px 20px;
  background: var(--paper);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.course-card:hover { background: var(--paper-2); }
.card-top { display: flex; justify-content: space-between; gap: 10px; }
.course-card h3 { font-size: 1.34rem; margin: 8px 0 6px; }
.course-card > div:first-child p { color: var(--ink-soft); font-size: .92rem; }
.prereq-warning { color: var(--copper); }
.prereq-ready { color: var(--ink-soft); }
.card-actions { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; margin-top: auto; }

/* progress bar */
.progress-track {
  height: 7px;
  background: var(--paper-2);
  border: 1px solid var(--rule);
  overflow: hidden;
}
.progress-fill { height: 100%; background: var(--copper); }

/* ---------------------------------------------------------------- votes */
.vote {
  font-size: 14px;
  line-height: 1;
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 8px 10px;
  cursor: pointer;
}
.vote:hover { background: var(--paper-2); }
.vote.mine { border-color: var(--copper); background: rgba(177, 68, 42, .12); }

/* ---------------------------------------------------------------- badges */
.badge-block { display: flex; flex-direction: column; gap: 22px; }
.badges {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0;
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--ink);
}
.badge {
  padding: 16px 18px;
  background: var(--paper);
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.badge.awarded { background: var(--paper-2); }
.badge.awarded .eyebrow { color: var(--copper); }
.badge h3 { font-size: 1.18rem; margin: 8px 0 6px; }
.badge .eyebrow { color: var(--ink-soft); }
.badge-subhead .eyebrow { color: var(--copper); }
.badge-subhead p { color: var(--ink-soft); font-size: .9rem; margin-top: 4px; max-width: 64ch; }

/* ---------------------------------------------------------------- profile */
.profile-hero {
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 30px;
  align-items: center;
  padding: 22px 0 26px;
  border-bottom: 1px solid var(--rule);
}
.profile-hero .chip { margin-bottom: 8px; }
.profile-hero h1 { margin: 10px 0 8px; }
.profile-hero p { color: var(--ink-soft); }
.profile-art { width: 100%; max-width: 180px; justify-self: end; opacity: .85; }
.level-summary { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 16px; font-family: var(--mono); font-size: 12px; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-soft); }
.level-summary strong { color: var(--copper); font-size: 1.05rem; }
.lesson-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 16px; }

.achievement-targets { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.achievement-target { padding: 18px 20px; background: var(--paper-2); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.achievement-target h3 { margin: 8px 0 6px; }
.achievement-target .progress-track { margin-top: 12px; }

.level-panel { display: grid; grid-template-columns: 260px 1fr; gap: 26px; border: 1px solid var(--ink); background: var(--paper-2); padding: 22px; }
.level-panel h3 { margin: 8px 0 6px; color: var(--copper); }
.level-meter { height: 8px; background: var(--paper); border: 1px solid var(--rule); overflow: hidden; }
.level-meter > div { height: 100%; background: var(--copper); }
.level-ladder { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.level-ladder span { font-family: var(--mono); font-size: 11px; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-soft); border: 1px solid var(--rule); padding: 7px 10px; background: var(--paper); }
.level-ladder span small { display: block; font-size: 9px; opacity: .8; margin-top: 2px; }
.level-ladder span.done { color: var(--ink); }
.level-ladder span.active { border-color: var(--copper); color: var(--copper); background: rgba(177, 68, 42, .08); }

.phase-progress-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.phase-progress-card { display: flex; flex-direction: column; gap: 12px; padding: 16px 18px; background: var(--paper); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.phase-progress-card.selected { background: rgba(177, 68, 42, .07); }
.phase-progress-card h3 { font-size: 1.12rem; margin: 6px 0 4px; }

.account-actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------------------------------------------------------------- activity */
.activity-timeline { display: grid; gap: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.activity-item { display: grid; grid-template-columns: 110px 1fr auto; gap: 14px; align-items: baseline; padding: 12px 16px; border-bottom: 1px solid var(--rule-soft); }
.activity-item:last-child { border-bottom: 0; }
.activity-kind { font-family: var(--mono); font-size: 10px; letter-spacing: .12em; text-transform: uppercase; color: var(--copper); }
.activity-item h3 { font-size: 1.02rem; }
.activity-item p { color: var(--ink-soft); font-size: .88rem; margin-top: 2px; }
.activity-item time { font-family: var(--mono); font-size: 10.5px; color: var(--ink-soft); white-space: nowrap; }

/* ---------------------------------------------------------------- phase detail */
.phase-detail { display: grid; grid-template-columns: 1fr 220px; gap: 30px; align-items: start; padding: 22px 0 26px; border-bottom: 1px solid var(--rule); }
.phase-detail .chip { margin: 0 6px 10px 0; }
.phase-detail h1 { margin: 8px 0 10px; }
.phase-detail > div:first-child > p { color: var(--ink-soft); max-width: 64ch; }
.phase-detail .progress-track { margin: 14px 0 6px; }
.phase-stats { display: grid; gap: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.phase-stats .stat { padding: 14px 16px; border-bottom: 1px solid var(--rule-soft); text-align: left; }
.phase-stats .stat:last-child { border-bottom: 0; }
.phase-stats .stat b { font-size: 1.5rem; }
.phase-stats .stat span { letter-spacing: .12em; }

.prereq-callout { border: 1px solid var(--copper); background: rgba(177, 68, 42, .07); padding: 16px 18px; margin: 16px 0; display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.prereq-callout.ready { border-color: var(--rule); background: var(--paper-2); }
.prereq-callout strong { font-family: var(--cond); font-weight: 700; font-size: 1.15rem; text-transform: uppercase; }
.prereq-callout span { font-size: .9rem; color: var(--ink-soft); }
.prereq-bundle { font-family: var(--mono); font-size: 11px; }
.prereq-review-links { display: flex; flex-wrap: wrap; gap: 6px; }

.context-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.context-card { padding: 18px 20px; background: var(--paper); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.context-card h2 { font-size: 1.2rem; margin: 8px 0 12px; }

/* ---------------------------------------------------------------- lesson map / rows */
.lesson-map { display: grid; gap: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.lesson-row, .lesson-link {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--ink);
  border-bottom: 1px solid var(--rule-soft);
}
.lesson-row:last-child, .lesson-link:last-child { border-bottom: 0; }
.lesson-row:hover, .lesson-link:hover { background: rgba(177, 68, 42, .06); }
.lesson-row strong { display: block; font-family: var(--cond); font-weight: 700; font-size: 1.1rem; text-transform: uppercase; letter-spacing: .01em; }
.lesson-row small { font-family: var(--mono); font-size: 10.5px; color: var(--ink-soft); }
.lesson-row .eyebrow { margin-left: auto; color: var(--ink-soft); }
.lesson-row.done .eyebrow, .lesson-row.done strong { color: var(--copper); }
.done-dot { flex: none; width: 11px; height: 11px; border: 1.5px solid var(--ink-soft); border-radius: 50%; }
.done-dot.started { border-color: var(--copper); }
.done-dot.done { background: var(--copper); border-color: var(--copper); }

/* ---------------------------------------------------------------- lesson reader */
.lesson-view { display: grid; grid-template-columns: 1fr 280px; gap: 46px; align-items: start; padding-top: 8px; }
.reader { min-width: 0; }
.reader-head { padding-bottom: 22px; border-bottom: 1px solid var(--rule); margin-bottom: 24px; }
.reader-head .chip { margin: 0 6px 12px 0; }
.reader-head h1 { margin: 8px 0 12px; }
.lesson-meta { color: var(--ink-soft); max-width: 64ch; }

.lesson-guidance { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; border: 1px solid var(--ink); background: var(--paper-2); padding: 14px 16px; margin: 18px 0; }
.lesson-guidance p { font-size: .92rem; max-width: 60ch; margin-top: 4px; }

/* prose */
.reader-body { max-width: 66ch; }
.reader-body p { margin-bottom: 16px; color: #23272f; }
.reader-body h2 { font-family: var(--cond); font-weight: 700; font-size: 1.6rem; margin: 32px 0 12px; padding-top: 12px; border-top: 1px solid var(--rule); }
.reader-body h3 { font-size: 1.25rem; margin: 24px 0 10px; }
.reader-body ul, .reader-body ol { margin: 0 0 16px 1.3em; }
.reader-body li { margin-bottom: 7px; color: #23272f; }
.reader-body blockquote { border-left: 3px solid var(--copper); padding: 4px 0 4px 16px; margin: 0 0 16px; color: var(--ink-soft); font-style: italic; }
.reader-body code { font-family: var(--mono); font-size: .86em; background: var(--paper-2); padding: 1px 6px; border: 1px solid var(--rule-soft); }
.reader-body table { width: 100%; border-collapse: collapse; font-family: var(--mono); font-size: 12.5px; margin-bottom: 16px; }
.reader-body td { padding: 8px 10px; border-bottom: 1px solid var(--rule-soft); }
.lesson-figure { margin: 18px 0; }
.lesson-figure figcaption { font-family: var(--mono); font-size: 10.5px; letter-spacing: .04em; color: var(--ink-soft); margin-top: 6px; text-transform: uppercase; }

/* code panels — instruments on ink-blue */
.code-wrap, .diagram-wrap { position: relative; margin: 20px 0; border: 1px solid var(--ink); background: var(--code-bg); }
.code-wrap pre { padding: 16px; overflow-x: auto; }
.code-wrap code, .diagram-source code { font-family: var(--mono); font-size: 13px; line-height: 1.7; color: var(--code-ink); background: none; border: 0; padding: 0; }
.copy-code {
  position: absolute;
  top: 8px;
  right: 8px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--paper);
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .2);
  padding: 5px 9px;
  cursor: pointer;
}
.copy-code:hover { background: rgba(255, 255, 255, .22); }
.diagram-head { display: flex; align-items: center; justify-content: space-between; padding: 9px 14px; border-bottom: 1px solid rgba(255, 255, 255, .1); font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; text-transform: uppercase; color: #8b97ac; }
.diagram-head .copy-code { position: static; }
.diagram-canvas { padding: 16px; overflow-x: auto; }
.diagram-canvas svg { display: block; width: 100%; height: auto; }
.diagram-node rect, .diagram-actor rect { fill: var(--paper); stroke: var(--copper); stroke-width: 1.2; }
.diagram-node text, .diagram-actor text { fill: var(--ink); font-family: var(--mono); font-size: 13px; }
.diagram-edge { fill: none; stroke: var(--code-ink); stroke-width: 1.4; }
.diagram-canvas marker path { fill: var(--code-ink); }
.diagram-life { stroke: rgba(216, 224, 236, .4); stroke-width: 1; stroke-dasharray: 4 4; }
.diagram-message text { fill: var(--code-ink); font-family: var(--mono); font-size: 12px; }
.diagram-source { border-top: 1px solid rgba(255, 255, 255, .1); }
.diagram-source summary { padding: 9px 14px; font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: #8b97ac; cursor: pointer; }
.diagram-source pre { padding: 0 14px 14px; overflow-x: auto; }

/* checkpoint / quiz */
.quiz-panel { border: 2px solid var(--ink); background: var(--paper-2); padding: 20px 22px; margin-top: 34px; }
.quiz-panel .section-head { border-bottom: 1px solid var(--ink); }
.quiz-list { display: flex; flex-direction: column; gap: 18px; margin: 18px 0; }
.quiz-question { border: 0; }
.quiz-question legend { font-family: var(--cond); font-weight: 600; font-size: 1.18rem; text-transform: uppercase; letter-spacing: .01em; margin-bottom: 12px; }
.quiz-question legend .eyebrow { display: block; margin-bottom: 4px; }
.quiz-option { display: flex; align-items: center; gap: 12px; border: 1px solid var(--rule); background: var(--paper); padding: 11px 14px; margin-bottom: 8px; cursor: pointer; }
.quiz-option:hover { border-color: var(--ink); }
.quiz-option input { accent-color: var(--copper); }
.quiz-option.correct { border-color: var(--copper); background: rgba(177, 68, 42, .08); }
.quiz-option.wrong { border-color: var(--ink-soft); background: rgba(25, 33, 46, .05); }

/* practice gate + notes */
.practice-gate { border: 1px solid var(--ink); background: var(--paper-2); padding: 18px 20px; margin: 20px 0; display: flex; flex-direction: column; gap: 12px; }
.practice-gate.saved { border-color: var(--copper); }
.practice-gate ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.practice-gate li { display: flex; gap: 10px; align-items: baseline; font-size: .92rem; }
.practice-confirm { display: flex; gap: 10px; align-items: flex-start; font-size: .92rem; }
.practice-confirm input { accent-color: var(--copper); margin-top: 3px; }
.practice-field { display: flex; flex-direction: column; gap: 6px; }
.practice-field span { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-soft); }
.practice-field textarea, .practice-field input {
  font-family: var(--sans);
  font-size: .95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--ink);
  padding: 10px 12px;
  resize: vertical;
}
.practice-field textarea:focus, .practice-field input:focus { outline: 2px solid var(--copper); outline-offset: 1px; }

.lesson-notes { border: 1px solid var(--ink); background: var(--paper-2); padding: 18px 20px; margin: 22px 0; display: flex; flex-direction: column; gap: 12px; }
.lesson-notes h2 { font-size: 1.3rem; margin-top: 4px; }

/* ---------------------------------------------------------------- side panel (right margin) */
.side-panel { position: sticky; top: 88px; display: flex; flex-direction: column; gap: 22px; }
.side-panel h3 { font-size: 1.15rem; margin: 6px 0 10px; }
.side-panel h4 { font-family: var(--mono); font-size: 10.5px; letter-spacing: .12em; color: var(--ink-soft); border-bottom: 2px solid var(--ink); padding-bottom: 7px; margin-bottom: 8px; }
.side-panel .eyebrow { color: var(--ink-soft); }
.artifact-list { display: flex; flex-direction: column; gap: 8px; }
.artifact-link { display: block; border: 1px solid var(--rule); background: var(--paper); padding: 10px 12px; text-decoration: none; color: var(--ink); }
.artifact-link:hover { border-color: var(--ink); }
.artifact-link.compact { padding: 9px 11px; }
.artifact-link strong { display: block; font-family: var(--cond); font-weight: 700; font-size: 1rem; text-transform: uppercase; letter-spacing: .01em; }
.artifact-link small { display: block; font-family: var(--mono); font-size: 10px; color: var(--ink-soft); margin-top: 3px; word-break: break-word; }
.source-note { display: block; font-size: .85rem; color: var(--ink-soft); }
.toc-list { display: flex; flex-direction: column; gap: 4px; }
.toc-list a { font-size: .9rem; color: var(--blue); text-decoration: none; padding: 3px 0; border-bottom: 1px solid var(--rule-soft); }
.toc-list a:hover { color: var(--copper); }
.structure-panel .signal-grid { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.structure-panel details { border-top: 1px solid var(--rule-soft); padding: 8px 0; }
.structure-panel summary { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); cursor: pointer; }
.structure-panel ul, .structure-panel ol { margin: 8px 0 0 1.2em; font-size: .88rem; }
.structure-panel li { margin-bottom: 5px; }
.term-list { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
.term-list span { display: block; }
.term-list strong { font-family: var(--cond); font-weight: 700; text-transform: uppercase; }
.term-list small { display: block; color: var(--ink-soft); font-size: .82rem; }
.lesson-list { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--ink); background: var(--paper-2); }
.lesson-link { padding: 9px 13px; gap: 10px; }
.lesson-link span:not(.done-dot) { font-size: .9rem; }
.lesson-link small { margin-left: auto; font-family: var(--mono); font-size: 10px; color: var(--ink-soft); }
.lesson-link.active { background: linear-gradient(90deg, rgba(177, 68, 42, .14), transparent); font-weight: 600; }
.lesson-link.active small { color: var(--copper); }
.lesson-link.done small { color: var(--copper); }
.validation-panel h4 { color: var(--copper); border-color: var(--copper); }

/* ---------------------------------------------------------------- lesson search results */
.lesson-search-panel { border: 1px solid var(--ink); background: var(--paper-2); padding: 16px 18px; margin-bottom: 18px; }
.lesson-search-results { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.lesson-search-panel .lesson-search-results { margin-top: 12px; }
.lesson-result { display: flex; flex-direction: column; gap: 6px; padding: 14px 16px; text-decoration: none; color: var(--ink); background: var(--paper); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.lesson-result:hover { background: var(--paper-2); }
.lesson-result strong { font-family: var(--cond); font-weight: 700; font-size: 1.15rem; text-transform: uppercase; letter-spacing: .01em; }
.lesson-result small { color: var(--ink-soft); font-size: .85rem; }
.lesson-result-cta { font-family: var(--mono); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; color: var(--copper); margin-top: auto; }
.lesson-pager { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 16px; }

/* ---------------------------------------------------------------- placement */
.placement-shell { display: flex; flex-direction: column; gap: 22px; }
.placement-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.placement-actions.compact { justify-content: space-between; }
.placement-result { border: 1px solid var(--ink); background: var(--paper-2); padding: 20px 22px; display: flex; flex-direction: column; gap: 14px; }
.placement-result h2 { color: var(--copper); }
.placement-breakdown { display: flex; flex-wrap: wrap; gap: 6px; }
.placement-path { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.path-step { display: flex; flex-direction: column; gap: 4px; padding: 13px 15px; text-decoration: none; color: var(--ink); background: var(--paper); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.path-step:hover { background: var(--paper-2); }
.path-step strong { font-family: var(--cond); font-weight: 700; text-transform: uppercase; }
.path-step.do { border-left: 3px solid var(--copper); }
.path-rationale { color: var(--ink-soft); }

/* ---------------------------------------------------------------- policy */
.policy-shell { display: flex; flex-direction: column; gap: 22px; }
.policy-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 0; border-top: 1px solid var(--ink); border-left: 1px solid var(--ink); }
.policy-grid article { padding: 20px 22px; background: var(--paper); border-right: 1px solid var(--ink); border-bottom: 1px solid var(--ink); }
.policy-grid h2 { font-size: 1.3rem; margin: 8px 0 10px; }
.policy-grid p { color: var(--ink-soft); font-size: .95rem; max-width: 60ch; }

/* ---------------------------------------------------------------- review bundle */
.review-bundle-list { display: flex; flex-direction: column; gap: 20px; }
.review-phase { border: 1px solid var(--ink); background: var(--paper-2); padding: 16px 18px; }
.review-phase .section-head { border-bottom: 1px solid var(--rule); }

/* ---------------------------------------------------------------- footer */
.site-footer {
  margin-top: 52px;
  border-top: 3px double var(--ink);
  padding: 18px 0 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.site-footer nav { display: flex; flex-wrap: wrap; gap: 18px; }
.site-footer a { color: var(--copper); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* ---------------------------------------------------------------- loading / empty / toast */
.loading-card { border: 1px solid var(--ink); background: var(--paper-2); padding: 28px 26px; display: flex; flex-direction: column; gap: 10px; }
.loading-card strong, .loading-card h1 { font-family: var(--cond); font-weight: 800; text-transform: uppercase; }
.loading-bars { display: flex; gap: 6px; margin-top: 6px; }
.loading-bars span { width: 36px; height: 6px; background: var(--copper); opacity: .3; animation: bars 1.1s ease-in-out infinite; }
.loading-bars span:nth-child(2) { animation-delay: .18s; }
.loading-bars span:nth-child(3) { animation-delay: .36s; }
@keyframes bars { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }
.lesson-loading { margin-top: 20px; }

.boot { margin-top: 20px; }

.empty { border: 1px dashed var(--rule); background: var(--paper-2); padding: 24px; text-align: center; color: var(--ink-soft); font-family: var(--mono); font-size: 13px; }
.empty a { color: var(--copper); }

.toast {
  position: fixed;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  z-index: 80;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  padding: 13px 18px;
  border: 1px solid var(--copper);
  max-width: 90vw;
  text-align: center;
}

/* ---------------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .profile-hero, .phase-detail { grid-template-columns: 1fr; gap: 20px; }
  .profile-art { display: none; }
  .level-panel { grid-template-columns: 1fr; gap: 18px; }
}

@media (max-width: 880px) {
  .app-shell { padding: 0 20px 56px; }
  .lesson-view { grid-template-columns: 1fr; gap: 28px; }
  .side-panel { position: static; top: auto; order: -1; border-bottom: 1px solid var(--rule); padding-bottom: 18px; }
  .achievement-targets { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  body { font-size: 15px; }
  .catalog, .badges, .phase-progress-grid, .lesson-search-results, .policy-grid, .context-grid { grid-template-columns: 1fr; }
  .badges.phase-seals { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .activity-item { grid-template-columns: 1fr; gap: 4px; }
  .activity-item time { grid-row: 1; }
  .placement-path { grid-template-columns: 1fr; }
  .field, .select { flex: 1 1 100%; }
}

@media (max-width: 420px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .brand-copy span { display: none; }
}