/* ===== LADDER — Field Built Tools =====
   paper/ink/safety-orange + steel. Barlow Condensed (signage) / Public Sans (body) / IBM Plex Mono (data). */
:root {
  --paper: #F6F4EF;
  --card: #FFFFFF;
  --ink: #1C1E21;
  --steel: #39424E;
  --steel-d: #232A33;
  --safety: #E8630A;
  --safety-soft: #FBE9DC;
  --lift: #2E7D5B;
  --lift-soft: #E4F0EA;
  --flag: #B3362A;
  --flag-soft: #F7E6E3;
  --soft: #6E7480;
  --rule: #DCD8CD;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
  --sans: "Public Sans", system-ui, sans-serif;
  --disp: "Barlow Condensed", var(--sans);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; }
body { background: var(--paper); color: var(--ink); font: 15px/1.6 var(--sans); }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; }
code { font-family: var(--mono); font-size: 0.88em; background: #EDEAE2; padding: 1px 5px; border-radius: 4px; }
:focus-visible { outline: 2.5px solid var(--safety); outline-offset: 2px; }

/* ---------- top bar ---------- */
.topbar {
  background: var(--steel-d); color: #F2F0EA;
  position: sticky; top: 0; z-index: 40;
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 16px; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; background: none; border: none; color: inherit; }
.brand-mark { width: 26px; height: 26px; flex: none; }
.brand-name { font-family: var(--disp); font-weight: 700; font-size: 24px; letter-spacing: 0.10em; }
.brand-sub { font-family: var(--mono); font-size: 9px; letter-spacing: 0.14em; color: #9AA3AD; display: block; margin-top: -3px; }
.score-pill { display: flex; align-items: baseline; gap: 7px; background: #2E3742; border: 1px solid #46505C; border-radius: 8px; padding: 5px 12px; }
.score-pill span { font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.1em; color: #9AA3AD; }
.score-pill b { font-family: var(--disp); font-size: 21px; font-weight: 700; color: var(--safety); letter-spacing: 0.03em; }

/* ---------- tabs ---------- */
.tabs {
  background: var(--steel); position: sticky; top: 47px; z-index: 39;
  display: flex; overflow-x: auto; scrollbar-width: none; padding: 0 8px;
}
.tabs::-webkit-scrollbar { display: none; }
.tab {
  background: none; border: none; color: #B9C1CA; flex: none;
  font-family: var(--disp); font-weight: 600; font-size: 16.5px; letter-spacing: 0.09em; text-transform: uppercase;
  padding: 11px 14px 9px; border-bottom: 3px solid transparent;
}
.tab.on { color: #fff; border-bottom-color: var(--safety); }

/* ---------- layout ---------- */
#app { opacity: 0; transition: opacity .25s; }
#app.ready { opacity: 1; }
.panel { max-width: 800px; margin: 0 auto; padding: 22px 16px 90px; }
.hint { color: var(--soft); font-size: 13px; }
.mono { font-family: var(--mono); font-size: 12.5px; }

/* ---------- hero ---------- */
.hero { padding: 14px 0 22px; }
.hero-eyebrow { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.22em; color: var(--safety); font-weight: 600; }
.hero-h { font-family: var(--disp); font-weight: 700; font-size: clamp(38px, 9vw, 56px); line-height: 1.02; text-transform: uppercase; letter-spacing: 0.015em; margin: 6px 0 10px; }
.hero-p { max-width: 58ch; color: #3A3F46; }

/* ---------- rung board (signature) ---------- */
.rungboard { position: relative; display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; padding: 14px 0; }
.rb-rail { position: absolute; left: 0; right: 0; top: 50%; height: 3px; background: var(--rule); border-radius: 2px; }
.rb-rung {
  position: relative; z-index: 1; background: var(--card); border: 1.5px solid var(--rule); border-radius: 10px;
  padding: 10px 6px 8px; display: flex; flex-direction: column; align-items: center; gap: 2px; text-align: center;
  border-top: 4px solid var(--rule);
}
.rb-rung .rb-name { font-family: var(--disp); font-weight: 600; font-size: 14.5px; letter-spacing: 0.04em; text-transform: uppercase; line-height: 1.1; }
.rb-rung .rb-prog { font-family: var(--mono); font-size: 10.5px; color: var(--soft); }
.rb-n { font-family: var(--mono); font-weight: 600; font-size: 10px; letter-spacing: 0.08em; color: var(--soft); }
.rb-rung.rb-cur { border-color: var(--safety); border-top-color: var(--safety); box-shadow: 0 2px 10px rgba(232, 99, 10, .18); }
.rb-rung.rb-cur .rb-n, .rb-rung.rb-cur .rb-prog { color: var(--safety); }
.rb-rung.rb-done { border-top-color: var(--lift); }
.rb-rung.rb-done .rb-prog { color: var(--lift); }
.rb-rung[aria-expanded="true"] { background: var(--steel-d); color: #F2F0EA; border-color: var(--steel-d); }
.rb-rung[aria-expanded="true"] .rb-prog, .rb-rung[aria-expanded="true"] .rb-n { color: var(--safety); }

.rdetail { background: var(--steel-d); color: #E8E6DF; border-radius: 12px; padding: 18px; margin-bottom: 8px; }
.rdetail-head { display: flex; justify-content: space-between; align-items: baseline; }
.rdetail-head h3 { font-family: var(--disp); font-size: 21px; font-weight: 700; letter-spacing: 0.06em; }
.rdetail-head span { font-family: var(--mono); color: var(--safety); }
.rdetail-goal { color: #B9C1CA; font-size: 14px; margin: 4px 0 12px; }
.rchecks { list-style: none; display: flex; flex-direction: column; gap: 7px; }
.rcheck { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; font-size: 14.5px; line-height: 1.45; }
.rcheck input { width: 17px; height: 17px; margin-top: 3px; accent-color: var(--safety); flex: none; }
.rcheck.on span { color: #7E8894; text-decoration: line-through; text-decoration-color: rgba(232, 99, 10, .6); }
.icard .rcheck.on span { color: var(--soft); }
.rdetail-exit { margin-top: 14px; font-size: 13px; color: #B9C1CA; border-top: 1px solid #39424E; padding-top: 10px; }
.rdetail-exit strong { color: var(--safety); font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }

/* ---------- home grid ---------- */
.home-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 18px; }
.hcard { background: var(--card); border: 1.5px solid var(--rule); border-radius: 12px; padding: 18px; }
.hcard h3 { font-family: var(--disp); font-size: 19px; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; margin-bottom: 10px; }
.score-big { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.score-num { font-family: var(--disp); font-weight: 700; font-size: 58px; line-height: 1; }
.score-num.b1 { color: var(--flag); } .score-num.b2 { color: #C07A18; } .score-num.b3 { color: var(--steel); }
.score-num.b4 { color: var(--lift); } .score-num.b5 { color: var(--lift); }
.score-meta { font-family: var(--mono); font-size: 11px; color: var(--soft); }
.spark { width: 100%; height: 60px; margin: 8px 0 4px; }
.score-form { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; margin-top: 10px; }
.score-form input, .score-form select { border: 1.5px solid var(--rule); border-radius: 8px; padding: 8px 9px; background: var(--paper); font-size: 13.5px; min-width: 0; }
.sc-rows { margin-top: 10px; display: flex; flex-direction: column; gap: 4px; }
.sc-row { display: flex; justify-content: space-between; align-items: center; gap: 8px; border-top: 1px dashed var(--rule); padding-top: 4px; }
.del { background: none; border: none; color: var(--soft); font-size: 16px; padding: 0 4px; }
.del:hover { color: var(--flag); }
.quick { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.ql { text-align: left; background: var(--paper); border: 1.5px solid var(--rule); border-radius: 9px; padding: 10px 12px; font-size: 13.5px; width: 100%; }
.ql:hover { border-color: var(--safety); }

/* ---------- track pages ---------- */
.track-intro { padding: 8px 0 16px; }
.track-intro h1 { font-family: var(--disp); font-weight: 700; font-size: clamp(30px, 7vw, 42px); text-transform: uppercase; letter-spacing: 0.02em; }
.track-intro p { max-width: 62ch; color: #3A3F46; margin-top: 6px; }
.track-tools { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; position: sticky; top: 91px; background: var(--paper); z-index: 30; padding: 8px 0; border-bottom: 1px solid var(--rule); }
.search { flex: 1 1 200px; border: 1.5px solid var(--rule); border-radius: 9px; padding: 9px 12px; background: var(--card); font-size: 14px; }
.rung-filter { display: flex; gap: 4px; }
.rf { border: 1.5px solid var(--rule); background: var(--card); border-radius: 7px; font-family: var(--mono); font-size: 11px; font-weight: 600; padding: 6px 9px; color: var(--soft); }
.rf.on { background: var(--steel-d); color: #fff; border-color: var(--steel-d); }
.track-prog { font-family: var(--mono); font-size: 11px; color: var(--soft); margin-left: auto; }
.tsec-head { margin: 26px 0 10px; }
.tsec-head h2 { font-family: var(--disp); font-weight: 700; font-size: 24px; text-transform: uppercase; letter-spacing: 0.04em; border-left: 4px solid var(--safety); padding-left: 10px; }
.tsec-head p { color: var(--soft); font-size: 13.5px; margin-top: 4px; max-width: 62ch; }
.bizmap { display: flex; flex-direction: column; gap: 6px; margin-top: 12px; }
.bizmap-r { display: flex; gap: 10px; align-items: baseline; background: var(--card); border: 1px solid var(--rule); border-radius: 8px; padding: 7px 11px; }
.bizmap-r b { font-family: var(--disp); font-size: 15px; letter-spacing: 0.04em; text-transform: uppercase; margin-right: 7px; }
.bizmap-r span:last-child { color: var(--soft); font-size: 13px; }

/* ---------- item cards ---------- */
.icard { background: var(--card); border: 1.5px solid var(--rule); border-radius: 12px; margin-bottom: 10px; overflow: hidden; }
.icard-open { border-color: var(--steel); }
.icard-read { border-left: 4px solid var(--lift); }
.icard-head { display: block; width: 100%; text-align: left; background: none; border: none; padding: 14px 16px 12px; }
.icard-chips { display: flex; gap: 5px; flex-wrap: wrap; margin-bottom: 7px; }
.icard-title { font-family: var(--disp); font-weight: 700; font-size: 21px; line-height: 1.15; letter-spacing: 0.015em; }
.icard-sum { color: var(--soft); font-size: 13.5px; margin-top: 4px; }
.icard-body { padding: 2px 16px 16px; border-top: 1px dashed var(--rule); padding-top: 12px; }
.icard-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }

.chip { font-family: var(--mono); font-size: 9.5px; font-weight: 600; letter-spacing: 0.09em; padding: 3px 7px; border-radius: 5px; border: 1px solid var(--rule); color: var(--soft); background: var(--paper); }
.chip-rung { background: var(--steel-d); color: var(--safety); border-color: var(--steel-d); }
.chip-basic { color: var(--soft); }
.chip-advanced { color: var(--steel); border-color: var(--steel); }
.chip-insider { color: var(--safety); border-color: var(--safety); background: var(--safety-soft); }
.chip-done { color: var(--lift); border-color: var(--lift); background: var(--lift-soft); }

/* ---------- content blocks ---------- */
.blk-h { font-family: var(--disp); font-weight: 700; font-size: 17.5px; text-transform: uppercase; letter-spacing: 0.05em; margin: 16px 0 6px; color: var(--steel); }
.blk-p { margin: 8px 0; max-width: 68ch; }
.blk-list, .blk-steps { margin: 8px 0 8px 22px; display: flex; flex-direction: column; gap: 5px; max-width: 66ch; }
.blk-steps li::marker { font-family: var(--mono); font-weight: 600; color: var(--safety); }
.blk-warn, .blk-tip { border-radius: 9px; padding: 10px 13px; margin: 10px 0; font-size: 13.5px; line-height: 1.55; }
.blk-warn { background: var(--flag-soft); border-left: 3.5px solid var(--flag); }
.blk-tip { background: var(--safety-soft); border-left: 3.5px solid var(--safety); }
.blk-tag { display: block; font-family: var(--mono); font-size: 9px; font-weight: 700; letter-spacing: 0.16em; margin-bottom: 3px; }
.blk-warn .blk-tag { color: var(--flag); }
.blk-tip .blk-tag { color: var(--safety); }
.blk-tbl-wrap { overflow-x: auto; margin: 10px 0; border: 1px solid var(--rule); border-radius: 9px; }
.blk-tbl { border-collapse: collapse; width: 100%; font-size: 13px; }
.blk-tbl th { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; text-align: left; background: var(--paper); padding: 8px 10px; border-bottom: 1.5px solid var(--rule); white-space: nowrap; }
.blk-tbl td { padding: 7px 10px; border-bottom: 1px solid #EEEBE3; vertical-align: top; }
.blk-tbl tr:last-child td { border-bottom: none; }

/* ---------- buttons ---------- */
.btn { border-radius: 9px; padding: 9px 15px; font-weight: 600; font-size: 13.5px; border: 1.5px solid transparent; }
.btn-pri { background: var(--safety); color: #fff; }
.btn-pri:hover { background: #D25705; }
.btn-ghost { background: var(--card); border-color: var(--rule); color: var(--ink); }
.btn-ghost:hover { border-color: var(--steel); }

/* ---------- academy ---------- */
.courses { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.course { text-align: left; background: var(--card); border: 1.5px solid var(--rule); border-radius: 12px; padding: 16px; display: flex; flex-direction: column; gap: 5px; }
.course:hover { border-color: var(--safety); }
.course-n { font-family: var(--mono); font-size: 9.5px; font-weight: 700; letter-spacing: 0.16em; color: var(--safety); }
.course h3 { font-family: var(--disp); font-size: 21px; font-weight: 700; line-height: 1.15; }
.course p { color: var(--soft); font-size: 13px; flex: 1; }
.course-meta { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 10.5px; color: var(--soft); margin-top: 6px; }
.course-prog.full { color: var(--lift); font-weight: 700; }
.crumb { background: none; border: none; color: var(--safety); font-weight: 600; font-size: 13.5px; padding: 4px 0; margin-bottom: 4px; }
.mods { display: flex; flex-direction: column; gap: 8px; }
.mod { display: flex; gap: 13px; align-items: center; text-align: left; background: var(--card); border: 1.5px solid var(--rule); border-radius: 11px; padding: 13px 15px; }
.mod:hover { border-color: var(--safety); }
.mod-n { font-family: var(--mono); font-size: 11px; font-weight: 700; color: var(--safety); letter-spacing: 0.1em; flex: none; }
.mod h3 { font-family: var(--disp); font-size: 18px; font-weight: 700; line-height: 1.15; }
.mod p { color: var(--soft); font-size: 12.5px; }
.mod-state { margin-left: auto; font-family: var(--mono); font-size: 12px; color: var(--lift); flex: none; }
.lesson { background: var(--card); border: 1.5px solid var(--rule); border-radius: 12px; padding: 20px 20px 24px; }
.lesson h1 { font-family: var(--disp); font-size: clamp(26px, 6vw, 34px); font-weight: 700; line-height: 1.1; margin: 4px 0 10px; }
.lesson-nav { display: flex; justify-content: space-between; margin-top: 22px; }
.quiz { background: var(--paper); border: 1.5px solid var(--rule); border-radius: 11px; padding: 15px; margin-top: 20px; }
.quiz-q { margin: 12px 0; }
.quiz-q > p { font-weight: 600; margin-bottom: 6px; }
.quiz-a { display: flex; gap: 9px; align-items: flex-start; padding: 5px 0; cursor: pointer; font-size: 14px; }
.quiz-a input { accent-color: var(--safety); margin-top: 4px; }
.quiz-why { font-size: 13px; border-radius: 7px; padding: 7px 10px; margin-top: 5px; }
.quiz-why.ok { background: var(--lift-soft); color: var(--lift); }
.quiz-why.no { background: var(--flag-soft); color: var(--flag); }
.quiz-result { font-family: var(--mono); margin-left: 10px; }
.gloss { display: flex; flex-direction: column; gap: 2px; margin-top: 12px; }
.gterm { border-top: 1px dashed var(--rule); padding: 8px 0; }
.gterm dt { font-weight: 700; font-family: var(--disp); font-size: 16.5px; letter-spacing: 0.02em; }
.gterm dd { color: #3A3F46; font-size: 13.5px; }

/* ---------- toolkit ---------- */
.tk-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 14px; }
.tk-tab { border: 1.5px solid var(--rule); background: var(--card); border-radius: 8px; padding: 8px 14px; font-family: var(--disp); font-weight: 600; font-size: 15.5px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--soft); }
.tk-tab.on { background: var(--steel-d); color: #fff; border-color: var(--steel-d); }
.tk-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.tk-item { text-align: left; background: var(--card); border: 1.5px solid var(--rule); border-radius: 11px; padding: 13px 15px; display: flex; flex-direction: column; gap: 3px; }
.tk-item:hover { border-color: var(--safety); }
.tk-item b { font-family: var(--disp); font-size: 18px; letter-spacing: 0.02em; }
.tk-item span { color: var(--soft); font-size: 13px; }
.tk-legal { font-family: var(--mono); font-size: 10.5px !important; color: var(--safety) !important; }
.letter-grid { display: grid; grid-template-columns: 300px 1fr; gap: 18px; margin-top: 8px; }
.letter-fields { display: flex; flex-direction: column; gap: 9px; align-self: start; position: sticky; top: 105px; }
.lf { display: flex; flex-direction: column; gap: 3px; }
.lf span { font-family: var(--mono); font-size: 9.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--soft); }
.lf input { border: 1.5px solid var(--rule); border-radius: 8px; padding: 8px 10px; background: var(--card); font-size: 13.5px; }
.letter-out { background: var(--card); border: 1.5px solid var(--rule); border-radius: 11px; padding: 20px; font: 12.5px/1.65 var(--mono); white-space: pre-wrap; min-height: 200px; }
.script { margin-left: 20px; display: flex; flex-direction: column; gap: 10px; }
.say { display: block; font-style: italic; }
.say-note { display: block; font-size: 12.5px; color: var(--soft); margin-top: 2px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 8px 0; }
.grid4 { display: grid; grid-template-columns: 1.4fr 1fr 0.8fr 0.8fr; gap: 8px; margin: 8px 0; }
.calc-out { background: var(--paper); border: 1.5px solid var(--rule); border-radius: 10px; padding: 13px 15px; margin-top: 12px; }
.co-big { font-family: var(--disp); font-weight: 700; font-size: 44px; line-height: 1; }
.co-label { font-family: var(--mono); font-size: 11px; color: var(--soft); margin-bottom: 8px; }
.co-row { display: flex; justify-content: space-between; gap: 10px; border-top: 1px dashed var(--rule); padding: 6px 0; font-size: 13.5px; }

/* ---------- advisor ---------- */
.chat { display: flex; flex-direction: column; gap: 10px; min-height: 200px; max-height: 55vh; overflow-y: auto; padding: 4px 2px; }
.chat-empty { color: var(--soft); font-size: 13.5px; padding: 30px 10px; text-align: center; }
.msg { max-width: 88%; border-radius: 12px; padding: 10px 14px; font-size: 14px; line-height: 1.55; }
.msg-user { align-self: flex-end; background: var(--steel-d); color: #F2F0EA; border-bottom-right-radius: 4px; }
.msg-assistant { align-self: flex-start; background: var(--card); border: 1.5px solid var(--rule); border-bottom-left-radius: 4px; }
.msg-assistant h4 { font-family: var(--disp); font-size: 16px; text-transform: uppercase; letter-spacing: 0.05em; margin: 8px 0 3px; color: var(--steel); }
.msg-assistant ul, .msg-assistant ol { margin: 6px 0 6px 20px; display: flex; flex-direction: column; gap: 3px; }
.msg-assistant p { margin: 5px 0; }
.msg-wait { color: var(--soft); display: flex; align-items: center; gap: 9px; }
.spin { width: 14px; height: 14px; border: 2.5px solid var(--rule); border-top-color: var(--safety); border-radius: 50%; animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
.chat-bar { display: flex; gap: 8px; margin-top: 12px; }
.chat-bar textarea { flex: 1; border: 1.5px solid var(--rule); border-radius: 10px; padding: 10px 12px; background: var(--card); resize: vertical; font-size: 14px; }
.chat-tools { display: flex; align-items: center; gap: 12px; margin-top: 8px; }

/* ---------- responsive ---------- */
@media (max-width: 700px) {
  .home-grid, .courses { grid-template-columns: 1fr; }
  .letter-grid { grid-template-columns: 1fr; }
  .letter-fields { position: static; }
  .rungboard { grid-template-columns: repeat(5, minmax(96px, 1fr)); overflow-x: auto; padding-bottom: 10px; }
  .rb-rail { top: calc(50% - 5px); }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .grid4 { grid-template-columns: 1fr 1fr; }
  .track-tools { top: 88px; }
  .score-form { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}
@media print {
  .topbar, .tabs { display: none; }
}