/* MØNTAN1 Academy :: shared design system (derived from concept 04B "The Compiler")
   Palette: paper / ink / red #e00000 / teal #4B737A. Type: IBM Plex Mono only. */

:root {
  --paper: #f2efe8;
  --ink: #0a0a0a;
  --dim: #6e6a60;
  --hair: #d4d0c5;
  --red: #e00000;
  --teal: #4B737A;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: 'IBM Plex Mono', monospace;
  font-size: 14.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--red); color: #fff; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 40px; position: relative; z-index: 1; }

/* ── top bar ───────────────────────────────────────────── */
.top {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0;
  border-bottom: 3px solid var(--ink);
}
.mark { font-size: 19px; font-weight: 700; letter-spacing: .16em; color: var(--ink); text-decoration: none; }
.mark .o { color: var(--red); }
.mark small { font-weight: 400; font-size: 11px; letter-spacing: .22em; color: var(--dim); margin-left: 10px; }
.top nav { display: flex; gap: 28px; font-size: 11px; letter-spacing: .2em; text-transform: uppercase; align-items: center; }
.top nav a { color: var(--ink); text-decoration: none; }
.top nav a:hover { color: var(--red); }
.top .cta {
  background: var(--ink); color: var(--paper);
  padding: 9px 20px; text-decoration: none;
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  transition: background .25s;
}
.top .cta:hover { background: var(--red); color: #fff; }

/* ── marquee ───────────────────────────────────────────── */
.marquee {
  background: var(--ink); color: var(--paper);
  overflow: hidden; white-space: nowrap;
  padding: 12px 0;
  font-size: 11.5px; letter-spacing: .3em; text-transform: uppercase;
}
.marquee .track { display: inline-block; animation: scroll 26s linear infinite; }
.marquee .red { color: var(--red); }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ── lesson page ───────────────────────────────────────── */
.lesson-head { padding: 64px 0 48px; border-bottom: 3px solid var(--ink); }
.eyebrow { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--dim); }
.eyebrow b { color: var(--red); font-weight: 400; }
.lesson-head h1 {
  margin-top: 22px;
  font-size: clamp(30px, 4.6vw, 56px);
  font-weight: 700; line-height: 1.04;
  letter-spacing: -.015em; text-transform: uppercase;
}
.lesson-head h1 .red { color: var(--red); }
.lesson-head .intro { margin-top: 22px; max-width: 640px; color: var(--dim); }
.lesson-meta {
  margin-top: 26px;
  display: flex; flex-wrap: wrap; gap: 26px;
  font-size: 10.5px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim);
}
.lesson-meta b { color: var(--teal); font-weight: 400; }

.objectives {
  margin: 44px 0 0;
  border: 2px solid var(--ink);
  padding: 26px 30px;
}
.objectives h3 { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--red); margin-bottom: 14px; }
.objectives ul { list-style: none; }
.objectives li { padding: 7px 0 7px 26px; position: relative; font-size: 13.5px; border-top: 1px solid var(--hair); }
.objectives li:first-child { border-top: none; }
.objectives li::before { content: ">"; position: absolute; left: 4px; color: var(--teal); font-weight: 700; }

.block {
  display: grid;
  grid-template-columns: 88px minmax(0, 1fr);
  gap: 34px;
  padding: 48px 0;
  border-bottom: 1px solid var(--ink);
}
.block .no {
  font-size: 40px; font-weight: 700; line-height: 1;
  color: transparent; -webkit-text-stroke: 1.2px var(--ink);
}
.block h2 { font-size: 21px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em; }
.block p { margin-top: 12px; color: var(--dim); font-size: 13.5px; max-width: 640px; }
.block .porting { margin-top: 14px; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--teal); }

.build {
  margin: 56px 0 0;
  border: 2px solid var(--red);
  padding: 30px 32px;
}
.build h3 { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--red); margin-bottom: 10px; }
.build h2 { font-size: 22px; font-weight: 700; text-transform: uppercase; }
.build p { margin-top: 12px; color: var(--dim); font-size: 13.5px; max-width: 640px; }

/* ── complete + pager ──────────────────────────────────── */
.finish {
  margin: 56px 0 0;
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;
  border-top: 3px solid var(--ink);
  padding-top: 30px;
}
.btn {
  display: inline-block;
  text-decoration: none; cursor: pointer;
  font-family: inherit; font-size: 11px; font-weight: 600;
  letter-spacing: .22em; text-transform: uppercase;
  padding: 14px 26px; border: none;
  transition: background .25s, color .25s;
}
.btn.red { background: var(--red); color: #fff; }
.btn.red:hover { background: var(--ink); color: var(--paper); }
.btn.red.done { background: var(--teal); color: #fff; cursor: default; }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.btn.ghost:hover { border-color: var(--red); color: var(--red); }
.pager { display: flex; gap: 14px; }

footer {
  margin-top: 70px;
  padding: 36px 0 60px;
  border-top: 3px solid var(--ink);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 14px;
  font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--dim);
}
footer a { color: var(--ink); text-decoration: none; }
footer a:hover { color: var(--red); }

/* ── index curriculum rows ─────────────────────────────── */
.part-label {
  display: flex; align-items: baseline; gap: 16px;
  padding: 56px 0 18px;
  font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--dim);
}
.part-label b { color: var(--red); font-weight: 400; }
.part-label::after { content: ""; flex: 1; height: 1px; background: var(--hair); }

.section-row {
  display: grid;
  grid-template-columns: 96px minmax(0, 5fr) minmax(0, 4fr) 130px;
  gap: 28px; align-items: baseline;
  padding: 30px 0;
  border-bottom: 1px solid var(--ink);
  text-decoration: none; color: inherit;
  transition: background .25s, padding-left .25s;
}
.section-row:hover { background: #e9e5da; padding-left: 12px; }
.section-row .num {
  font-size: 26px; font-weight: 700;
  color: transparent; -webkit-text-stroke: 1.2px var(--ink);
  transition: color .25s, -webkit-text-stroke-color .25s;
}
.section-row:hover .num { color: var(--red); -webkit-text-stroke-color: var(--red); }
.section-row h3 { font-size: 17px; font-weight: 700; text-transform: uppercase; }
.section-row .desc { font-size: 12px; color: var(--dim); }
.section-row .st { text-align: right; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim); }
.section-row .st.done { color: var(--teal); }

.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 820px) {
  .wrap { padding: 0 20px; }
  .top nav { display: none; }
  .block { grid-template-columns: 1fr; gap: 12px; }
  .section-row { grid-template-columns: 56px 1fr; }
  .section-row .desc, .section-row .st { grid-column: 2; text-align: left; }
  .finish { flex-direction: column; align-items: stretch; text-align: center; }
}

/* ── ported lesson components (restyled from the legacy weeks pages) ── */
.lesson-section { padding: 52px 0; border-bottom: 1px solid var(--ink); }
.lesson-section > h2 { font-size: 22px; font-weight: 700; text-transform: uppercase; letter-spacing: .02em; margin-bottom: 14px; }
.lesson-section > p { color: var(--dim); font-size: 13.5px; max-width: 680px; margin-bottom: 12px; }
.lesson-section strong { color: var(--ink); }
.lesson-section code { background: #e7e2d5; padding: 1px 6px; font-size: .92em; }
.lesson-section ul, .lesson-section ol { margin: 12px 0 12px 22px; color: var(--dim); font-size: 13.5px; max-width: 660px; }
.lesson-section li { margin: 6px 0; }
.section-number { font-size: 10px; letter-spacing: .26em; text-transform: uppercase; color: var(--red); margin-bottom: 10px; }

.steps { margin: 22px 0; border: 1px solid var(--ink); }
.step { display: flex; gap: 18px; padding: 18px 20px; border-top: 1px solid var(--hair); }
.step:first-child { border-top: none; }
.step-num {
  flex-shrink: 0; width: 30px; height: 30px;
  border: 1.5px solid var(--ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px;
}
.step-content h4 { font-size: 13.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .03em; }
.step-content p { margin-top: 4px; color: var(--dim); font-size: 13px; }

.code-block { border: 2px solid var(--ink); margin: 20px 0; background: #faf8f2; }
.code-header {
  display: flex; align-items: center; gap: 8px;
  border-bottom: 2px solid var(--ink);
  padding: 8px 14px;
  font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--dim);
}
.code-dot { display: none; }
.code-filename { color: var(--teal); }
.code-block pre { padding: 16px 18px; font-size: 12.5px; line-height: 1.7; overflow-x: auto; white-space: pre; font-family: inherit; }
.code-block code { background: none; padding: 0; }
.kw { color: var(--teal); font-weight: 600; }
.st { color: var(--red); }
.cm { color: var(--dim); font-style: italic; }
.tc, .tag-elem { color: var(--teal); font-weight: 600; }
.at { color: #8a6d3b; }
.vl { color: var(--red); }
.tx { color: var(--ink); }

.callout { border: 1px solid var(--ink); border-left: 4px solid var(--teal); padding: 16px 20px; margin: 20px 0; max-width: 720px; }
.callout-warn { border-left-color: var(--red); }
.callout-tip { border-left-color: var(--teal); }
.callout-wv { border-left-color: var(--red); }
.callout-icon { display: none; }
.callout-label { font-size: 10px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--teal); margin-bottom: 6px; }
.callout-warn .callout-label { color: var(--red); }
.callout-body { font-size: 13px; color: var(--dim); }
.callout-body code { background: #e7e2d5; }

.prompt-box { border: 1px dashed var(--teal); background: #eef0ea; padding: 16px 20px; margin: 18px 0; max-width: 720px; }
.prompt-box::before { content: "PROMPT :: COPY AND ADAPT"; display: block; font-size: 9.5px; letter-spacing: .22em; color: var(--teal); margin-bottom: 10px; }
.prompt-box p { white-space: pre-wrap; font-size: 12.5px; color: var(--ink); margin: 0; }

.diagram { border: 1px solid var(--ink); padding: 22px 24px; margin: 20px 0; background: #faf8f2; }
.diagram-title { font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--red); margin-bottom: 16px; }
.flow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.flow-step { border: 1px solid var(--ink); padding: 10px 14px; text-align: center; min-width: 110px; background: var(--paper); }
.flow-icon { display: none; }
.flow-label { font-size: 11.5px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.flow-sub { font-size: 10px; color: var(--dim); margin-top: 3px; }
.flow-arrow { color: var(--red); font-weight: 700; }

.exercise { border: 2px solid var(--red); padding: 24px 28px; margin: 22px 0; }
.exercise-label { font-size: 10px; font-weight: 600; letter-spacing: .26em; text-transform: uppercase; color: var(--red); margin-bottom: 10px; }
.exercise h3 { font-size: 17px; font-weight: 700; text-transform: uppercase; margin-bottom: 10px; }
.exercise p { color: var(--dim); font-size: 13px; }

.wv-example { border: 1px solid var(--ink); border-left: 4px solid var(--red); padding: 16px 20px; margin: 18px 0; max-width: 720px; }
.wv-example-label { font-size: 9.5px; font-weight: 600; letter-spacing: .22em; text-transform: uppercase; color: var(--red); margin-bottom: 6px; display: block; }
.wv-example p { font-size: 13px; color: var(--dim); margin: 0; }

.devtools-mock { border: 2px solid var(--ink); margin: 20px 0; background: #faf8f2; }
.devtools-tabs { display: flex; border-bottom: 2px solid var(--ink); }
.devtools-tab { padding: 7px 14px; font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--dim); border-right: 1px solid var(--hair); }
.devtools-tab.active { color: var(--red); }
.devtools-content { padding: 14px 18px; font-size: 12px; line-height: 1.8; }

.html-tree { border: 1px solid var(--ink); padding: 18px 22px; margin: 20px 0; background: #faf8f2; font-size: 13px; line-height: 2; }
.tree-node { display: block; }
.tree-indent { padding-left: 26px; }
.tree-tag { color: var(--teal); font-weight: 600; }
.tag-desc { color: var(--dim); font-size: 11.5px; }

.try-it { border: 1px dashed var(--ink); padding: 16px 20px; margin: 18px 0; }
.try-it-badge { font-size: 9.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--teal); margin-bottom: 8px; display: inline-block; }
.check-list-static { list-style: none; margin-left: 0 !important; }
.check-list-static li { padding-left: 26px; position: relative; }
.check-list-static li::before { content: ">"; position: absolute; left: 4px; color: var(--teal); font-weight: 700; }

/* still-building + course boxes + certificate claim (section 12) */
.still-building {
  border: 1px dashed var(--dim); padding: 18px 22px; margin: 18px 0; max-width: 720px;
  font-size: 12px; color: var(--dim);
}
.still-building b { color: var(--red); font-weight: 600; letter-spacing: .2em; text-transform: uppercase; font-size: 10px; display: block; margin-bottom: 8px; }
.courses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 22px 0; }
.course {
  border: 2px solid var(--ink); padding: 22px 20px;
  text-decoration: none; color: inherit; display: flex; flex-direction: column;
  transition: transform .25s, border-color .25s, background .25s;
}
.course:hover { transform: translateY(-4px); border-color: var(--red); background: #faf8f2; }
.course .ck { font-size: 9.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--teal); }
.course h3 { margin-top: 10px; font-size: 16px; font-weight: 700; text-transform: uppercase; }
.course p { margin-top: 8px; font-size: 12px; color: var(--dim); flex: 1; }
.course .go { margin-top: 14px; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: var(--red); }

.claim {
  border: 2px solid var(--ink); margin-top: 56px; padding: 32px;
  background: linear-gradient(90deg, rgba(75,115,122,.10), transparent 55%);
}
.claim h3 { font-size: 11px; letter-spacing: .26em; text-transform: uppercase; color: var(--teal); margin-bottom: 8px; }
.claim h2 { font-size: 22px; font-weight: 700; text-transform: uppercase; }
.claim p { margin-top: 10px; color: var(--dim); font-size: 13px; max-width: 620px; }
.claim form { margin-top: 20px; display: flex; flex-wrap: wrap; gap: 12px; }
.claim input {
  font-family: inherit; font-size: 13px;
  background: var(--paper); border: 1px solid var(--ink); color: var(--ink);
  padding: 13px 16px; min-width: 220px;
}
.claim input:focus { outline: 2px solid var(--teal); }
.claim .locked-note { margin-top: 12px; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--red); }
.claim.unlocked .locked-note { display: none; }
.claim button[disabled] { opacity: .45; cursor: not-allowed; }

@media (max-width: 820px) {
  .courses { grid-template-columns: 1fr; }
  .flow { flex-direction: column; align-items: stretch; }
  .flow-arrow { text-align: center; transform: rotate(90deg); }
}

/* ── visual component library (code-drawn; no image files) ── */

/* tool rail under the lesson header */
.tool-rail { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; padding: 22px 0 4px; }
.tool-rail .tr-label { font-size: 10px; letter-spacing: .24em; text-transform: uppercase; color: var(--dim); margin-right: 4px; }
.tool-chip {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--ink); padding: 7px 13px 7px 10px;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  transition: background .2s, color .2s;
}
.tool-chip:hover { background: var(--ink); color: var(--paper); }
.tool-chip .tl { width: 17px; height: 17px; display: inline-flex; }
.tool-chip .tl svg { width: 100%; height: 100%; }

/* setup :: tool grid */
.tool-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; margin: 30px 0 8px; }
.tg-cell { border: 2px solid var(--ink); padding: 22px 16px; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 10px; transition: background .25s, transform .25s; }
.tg-cell:hover { background: #faf8f2; transform: translateY(-3px); }
.tg-logo { width: 34px; height: 34px; }
.tg-logo svg { width: 100%; height: 100%; }
.tg-name { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.tg-sub { font-size: 10.5px; color: var(--dim); }

/* generic mockup chrome */
.mock { border: 2px solid var(--ink); margin: 30px 0; background: #faf8f2; overflow: hidden; }
.mk-bar { display: flex; align-items: center; gap: 8px; padding: 9px 14px; border-bottom: 2px solid var(--ink); background: var(--paper); }
.wd { width: 9px; height: 9px; border: 1.4px solid var(--ink); border-radius: 50%; display: inline-block; }
.mk-url, .mk-title { margin-left: 8px; font-size: 11px; letter-spacing: .06em; color: var(--dim); }
.mk-term .mk-title { color: var(--teal); }
.mk-body { padding: 26px 24px; }
.mk-body-term { background: #0f0f0d; color: #d8d4c8; font-size: 12.5px; line-height: 1.8; }

/* 01 :: hello browser page */
.hello-page { text-align: center; padding: 14px 0; }
.hello-page h3 { font-size: 22px; font-weight: 700; }
.hello-page p { color: var(--dim); margin-top: 6px; font-size: 13px; }
.hello-tag { display: inline-block; margin-top: 16px; font-size: 11px; letter-spacing: .14em; color: var(--teal); border: 1px dashed var(--teal); padding: 4px 12px; }

/* 02 :: before / after */
.ba { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: center; margin: 30px 0; }
.ba-col figcaption { font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim); margin-bottom: 8px; }
.ba-card { border: 1px solid var(--ink); padding: 20px; }
.ba-plain { font-family: 'IBM Plex Mono', monospace; }
.ba-plain b { font-size: 16px; } .ba-plain p { margin: 6px 0; } .ba-plain a { color: var(--ink); text-decoration: underline; }
.ba-styled { background: var(--ink); color: var(--paper); border-color: var(--ink); text-align: center; padding: 26px 20px; }
.ba-styled b { font-size: 19px; letter-spacing: .04em; color: #fff; display: block; }
.ba-styled p { color: #b8b3a7; margin: 8px 0 14px; font-size: 13px; }
.ba-styled a { display: inline-block; background: var(--red); color: #fff; padding: 8px 18px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; }
.ba-arrow { font-size: 11px; letter-spacing: .14em; text-transform: uppercase; color: var(--red); }

/* 03 :: click demo */
.click-demo { text-align: center; }
.cd-btn { background: var(--red); color: #fff; border: none; font-family: inherit; font-size: 12px; letter-spacing: .12em; text-transform: uppercase; padding: 11px 22px; }
.cd-panel { margin: 16px auto 0; max-width: 380px; border: 1px solid var(--teal); border-left: 4px solid var(--teal); padding: 12px 16px; font-size: 12.5px; color: var(--dim); }
.cd-code { display: block; margin-top: 16px; font-size: 12px; color: var(--teal); }

/* pipelines (05, 10) */
.pipeline { border: 2px solid var(--ink); margin: 30px 0; background: #faf8f2; padding: 0; }
.pipeline figcaption { border-bottom: 2px solid var(--ink); padding: 9px 16px; font-size: 10px; letter-spacing: .22em; text-transform: uppercase; color: var(--red); background: var(--paper); }
.pl-track { display: flex; align-items: stretch; padding: 24px 18px; gap: 6px; }
.pl-step { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; padding: 6px; }
.pl-logo { width: 30px; height: 30px; } .pl-logo svg { width: 100%; height: 100%; }
.pl-label { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.pl-sub { font-size: 10px; color: var(--dim); }
.pl-arrow { display: flex; align-items: center; color: var(--red); font-weight: 700; }

/* 06 :: landing wireframe */
.wire { display: flex; flex-direction: column; gap: 14px; }
.wire-nav { display: flex; align-items: center; gap: 8px; }
.wire-spacer { flex: 1; }
.wb { background: var(--hair); display: inline-block; }
.wb.sm { width: 80px; height: 14px; }
.wb.pill { width: 70px; height: 22px; background: var(--red); }
.wire-hero { display: flex; flex-direction: column; align-items: center; gap: 12px; padding: 26px 0; border: 1px dashed var(--hair); }
.wb.h1 { width: 60%; height: 22px; background: var(--ink); }
.wb.h1.short { width: 40%; }
.wb.cta { width: 130px; height: 34px; background: var(--red); margin-top: 6px; }
.wire-row { display: flex; gap: 12px; }
.wb.box { flex: 1; height: 70px; }

/* 07 :: api exchange */
.exchange { display: grid; grid-template-columns: 1fr auto 1fr; gap: 16px; align-items: center; margin: 30px 0; }
.ex-side { border: 2px solid var(--ink); padding: 18px; }
.ex-api { border-color: var(--teal); }
.ex-tag { display: flex; align-items: center; gap: 7px; font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--dim); margin-bottom: 10px; }
.ex-tag svg { width: 16px; height: 16px; }
.ex-side code { font-size: 12px; color: var(--ink); word-break: break-all; }
.ex-api code { color: var(--teal); }
.ex-mid { display: flex; flex-direction: column; gap: 8px; align-items: center; }
.ex-arrow { font-size: 9.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--red); white-space: nowrap; }
.ex-arrow.back { color: var(--teal); }

/* 08 :: chat */
.chat { display: flex; flex-direction: column; gap: 12px; }
.ch-row { display: flex; align-items: flex-start; gap: 10px; }
.ch-you { flex-direction: row-reverse; }
.ch-who { font-size: 9px; letter-spacing: .12em; color: var(--dim); padding-top: 6px; }
.ch-bubble { max-width: 75%; border: 1px solid var(--ink); padding: 10px 14px; font-size: 12.5px; line-height: 1.5; }
.ch-bot .ch-bubble { background: var(--paper); }
.ch-you .ch-bubble { background: var(--ink); color: var(--paper); }
.ch-input { display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--hair); padding: 10px 14px; margin-top: 6px; }
.ch-ph { font-size: 12px; color: var(--dim); }
.ch-send { background: var(--red); color: #fff; font-size: 10px; letter-spacing: .12em; text-transform: uppercase; padding: 6px 14px; }

/* 09 :: decision */
.decision { border: 2px solid var(--ink); padding: 26px; margin: 30px 0; background: #faf8f2; }
.dc-q { text-align: center; font-size: 13px; letter-spacing: .14em; text-transform: uppercase; color: var(--red); margin-bottom: 20px; }
.dc-branches { display: grid; grid-template-columns: 1fr auto 1fr; gap: 18px; align-items: center; }
.dc-col { border: 1px solid var(--ink); padding: 16px 18px; background: var(--paper); }
.dc-h { display: flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; text-transform: uppercase; margin-bottom: 10px; }
.dc-h svg { width: 18px; height: 18px; }
.dc-col ul { list-style: none; margin: 0; }
.dc-col li { font-size: 12px; color: var(--dim); padding: 3px 0 3px 16px; position: relative; }
.dc-col li::before { content: "+"; position: absolute; left: 0; color: var(--teal); }
.dc-vs { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--dim); }
.dc-foot { text-align: center; margin-top: 18px; font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--teal); }

/* 11 :: scope */
.scope { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; border: 2px solid var(--ink); padding: 26px 18px; margin: 30px 0; background: #faf8f2; }
.sc-step { display: flex; align-items: center; gap: 10px; font-size: 13px; font-weight: 700; text-transform: uppercase; }
.sc-n { width: 26px; height: 26px; border: 1.5px solid var(--ink); display: flex; align-items: center; justify-content: center; font-size: 12px; }
.sc-ship .sc-n { background: var(--red); color: #fff; border-color: var(--red); }
.sc-arrow { color: var(--red); font-weight: 700; }

/* 12 :: portfolio grid */
.pf-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.pf-tile { border: 1px solid var(--ink); display: flex; flex-direction: column; }
.pf-thumb { height: 48px; background: var(--hair); border-bottom: 1px solid var(--ink); }
.pf-tile:nth-child(3n) .pf-thumb { background: var(--teal); }
.pf-tile:nth-child(4n) .pf-thumb { background: var(--ink); }
.pf-name { font-size: 11px; padding: 8px 10px; letter-spacing: .04em; }

@media (max-width: 820px) {
  .tool-grid { grid-template-columns: 1fr 1fr; }
  .ba, .exchange, .dc-branches { grid-template-columns: 1fr; }
  .ba-arrow, .dc-vs { transform: rotate(90deg); justify-self: center; }
  .pl-track { flex-direction: column; }
  .pl-arrow { transform: rotate(90deg); align-self: center; }
  .pf-grid { grid-template-columns: 1fr 1fr; }
  .ex-mid { flex-direction: row; }
}