/* ====================================================
 * SMOLNIKOV ACADEMY — Paper Editorial overrides for LMS
 * Источник: paper/lesson-reader.jsx + DESIGN.md §4
 * Загружается ПОСЛЕ /lms.css на страницах курсов
 * Переопределяет dark-theme на бумажную палитру,
 * сохраняя все классы lms.js (.lesson-page, .quiz-block,
 * .hw-block, .lms-sidebar, completion-screen и т.д.)
 * ==================================================== */

/* Перебиваем переменные dark-темы */
:root {
  --bg:        var(--paper);
  --bg-2:      var(--paper2);
  --panel:     var(--paper3);
  --line:      var(--rule);
  --ink:       #1a1612;
  --ink-2:     #5a5147;
  --ink-3:     #8a8175;
  --accent:    var(--red);
  --accent-2:  var(--forest);
  --warn:      #a85a3d;
  --ok:        #1a4d3a;
  --max:       1400px;
}

html, body {
  background: var(--paper); color: var(--ink);
  font-family: var(--serif);
}
body {
  font-size: 18px; line-height: 1.65;
}
::selection { background: var(--ink); color: var(--paper); }

/* Глобальные ссылки в paper-стиле */
a { color: inherit; text-decoration: none; border-bottom: none; }
a:hover { color: var(--accent); border-bottom: none; }

/* === HEADER — заменяем на paper-mast === */
header.top {
  position: static; backdrop-filter: none;
  background: var(--paper);
  border-bottom: 3px double var(--ink);
}
.top-row {
  max-width: 1400px; margin: 0 auto;
  padding: 24px 48px;
  display: flex; align-items: baseline;
  justify-content: space-between; gap: 24px; flex-wrap: wrap;
}
.brand {
  font-family: var(--display); font-weight: 400;
  font-size: 40px; letter-spacing: -.02em; line-height: 1;
  color: var(--ink); text-transform: none;
  display: flex; align-items: baseline; gap: 0;
}
.brand-mark { display: none; }
.brand small {
  font-family: var(--display); font-style: italic;
  color: var(--accent); font-size: 40px; font-weight: 400;
  margin-left: 4px;
}
.brand small::before { content: "."; }
.brand small { font-size: 0; }
.brand small::after {
  content: "/ ACADEMY";
  font-family: var(--mono); font-style: normal; font-size: 12px;
  letter-spacing: .15em; color: var(--ink3);
  margin-left: 8px;
}
.course-badge {
  font-family: var(--mono); font-size: 11px;
  color: var(--accent); padding: 5px 12px;
  border: 1px solid var(--accent); border-radius: 0;
  letter-spacing: .15em; text-transform: uppercase;
  background: transparent;
}
.top-row > span:last-child {
  display: flex; gap: 24px; align-items: baseline;
  font-family: var(--sans); font-size: 14px;
}
.top-row > span:last-child a {
  font-family: var(--sans) !important; font-size: 14px !important;
  color: var(--ink2) !important; border: none !important;
}
.top-row > span:last-child a:hover { color: var(--ink) !important; }

/* === HERO курса === */
.hero {
  max-width: 1400px; margin: 0 auto;
  padding: 48px 48px 56px;
  border-bottom: 1px solid var(--rule);
}
.kicker {
  font-family: var(--mono); font-size: 12px;
  color: var(--accent); text-transform: uppercase;
  letter-spacing: .22em; margin-bottom: 22px;
  display: inline-block;
}
.kicker::before { content: "★ "; color: var(--accent); }
h1.hero-h {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(64px, 8.4vw, 124px);
  line-height: .92; letter-spacing: -.025em;
  margin: 0 0 22px;
}
h1.hero-h em {
  font-style: italic; color: var(--accent);
}
.hero-lead {
  font-family: var(--display); font-style: italic;
  font-size: 28px; line-height: 1.3;
  color: var(--ink2); max-width: 720px;
  margin: 0 0 28px;
}
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 36px;
  padding: 22px 0; margin-top: 22px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); text-transform: uppercase;
  letter-spacing: .1em;
}
.hero-meta div { display: flex; flex-direction: column; gap: 4px; }
.hero-meta b {
  font-family: var(--display); color: var(--ink);
  font-weight: 400; font-size: 24px; letter-spacing: 0;
  text-transform: none;
}
.last-update {
  margin-top: 0 !important; font-family: var(--mono);
  color: var(--ink3); letter-spacing: .06em;
}
.last-update::before { display: none; }

/* === LMS Layout === */
.lms-layout {
  max-width: 1400px; margin: 0 auto;
  display: grid; grid-template-columns: 240px minmax(0, 1fr);
  gap: 48px; padding: 0 48px;
  min-height: 70vh;
}
@media (max-width: 960px) {
  .lms-layout { grid-template-columns: 1fr; gap: 24px; padding: 0 24px; }
}

/* === SIDEBAR (paper-стиль) === */
.lms-sidebar {
  border-right: none; padding: 32px 0;
  position: sticky; top: 0;
  align-self: start;
  max-height: 100vh; overflow-y: auto;
  background: transparent;
}
@media (max-width: 960px) {
  .lms-sidebar { position: static; max-height: none; padding: 24px 0; border-bottom: 1px solid var(--rule); }
}
.sidebar-label {
  font-family: var(--mono); font-size: 10px;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 16px;
}
.sidebar-label::before { content: "§ "; }
.prog-bar {
  height: 4px; background: var(--paper3);
  border-radius: 0; margin-bottom: 8px;
  position: relative; overflow: hidden;
}
.prog-fill {
  height: 100%; background: var(--accent);
  transition: width .25s; border-radius: 0;
}
.prog-txt {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .06em;
  margin-bottom: 22px;
}

/* Module hierarchy */
.module-block {
  list-style: none; margin: 0; padding: 0;
  border-bottom: 1px dashed var(--rule);
}
.module-block:last-child { border-bottom: none; }
.module-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 0 10px; cursor: pointer;
  border-radius: 0; transition: none;
}
.module-head:hover { background: transparent; }
.module-head:hover .module-title { color: var(--accent); }
.module-num {
  font-family: var(--mono); font-size: 10px;
  color: var(--accent); letter-spacing: .1em;
  font-weight: 400; flex-shrink: 0; width: auto;
  text-transform: uppercase;
}
.module-num::before { content: "§ "; }
.module-title {
  font-family: var(--serif); font-size: 14px;
  color: var(--ink); font-weight: 600; line-height: 1.3;
  flex: 1; transition: color .15s;
}
.module-progress {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink3); background: transparent;
  padding: 0; border-radius: 0;
  letter-spacing: .04em;
}
.module-progress.done { background: transparent; color: var(--accent); }
.module-progress.done::before { content: "✓ "; }
.module-block .module-head::after {
  content: "+"; font-family: var(--mono); font-size: 14px;
  color: var(--ink3); transition: none; transform: none;
  margin-left: 4px;
}
.module-block.open .module-head::after { content: "−"; transform: none; }

.module-lessons {
  list-style: none; padding: 0 0 8px 0; margin: 0;
}

.lesson-item {
  display: grid; grid-template-columns: 18px 1fr; gap: 6px;
  padding: 6px 0 6px 8px;
  border-radius: 0; cursor: pointer;
  transition: none; border-left: 2px solid transparent;
  margin-left: -10px;
}
.lesson-item:hover { background: transparent; }
.lesson-item:hover .lesson-title { color: var(--accent); }
.lesson-item.active {
  background: transparent;
  border-left-color: var(--accent);
}
.lesson-item.active .lesson-title { color: var(--ink); font-weight: 600; }
.lesson-check {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); margin-top: 1px; width: auto;
}
.lesson-check.done { color: var(--accent); }
.lesson-check.in-prog { color: var(--accent); }
.lesson-title {
  font-family: var(--serif); font-size: 14px;
  color: var(--ink2); line-height: 1.35;
}

/* === LESSON CONTENT === */
.lms-main {
  padding: 32px 0 80px;
  min-width: 0;
}
@media (max-width: 960px) {
  .lms-main { padding: 24px 0 60px; }
}
.lesson-page {
  display: none;
  max-width: none;
  scroll-margin-top: 24px;
}
.mod-num {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .15em;
  text-transform: uppercase; margin-bottom: 14px;
  display: block;
}
h2.lesson-h {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(40px, 5.5vw, 64px);
  line-height: .98; letter-spacing: -.02em;
  margin: 0 0 14px;
}
h2.lesson-h em {
  font-style: italic; color: var(--accent);
}
h2.lesson-h::after {
  content: "."; color: var(--accent); margin-left: 1px;
}
h3 {
  font-family: var(--display); font-weight: 400; font-style: italic;
  font-size: 30px; line-height: 1.1;
  letter-spacing: -.005em;
  margin: 36px 0 12px; color: var(--accent);
}
h4 {
  font-family: var(--mono); font-weight: 600;
  font-size: 11px; text-transform: uppercase;
  letter-spacing: .15em; color: var(--accent);
  margin: 28px 0 10px;
}
p {
  margin: 0 0 16px; color: var(--ink);
  font-size: 18px; line-height: 1.7;
}
p.lead {
  font-family: var(--display); font-style: italic;
  font-size: 22px; line-height: 1.3;
  color: var(--ink2); margin: 0 0 28px;
  max-width: 720px;
}
ul, ol { padding-left: 0; margin: 8px 0 18px; color: var(--ink); list-style: none; }
ul li, ol li {
  display: grid; grid-template-columns: 28px 1fr; gap: 8px;
  padding: 6px 0; border-bottom: 1px dashed var(--rule);
  margin-bottom: 0; font-size: 17px; line-height: 1.6;
}
ol { counter-reset: olist; }
ol li { counter-increment: olist; }
ol li::before {
  content: counter(olist) ".";
  font-family: var(--mono); font-size: 13px;
  color: var(--accent); align-self: baseline;
}
ul li::before {
  content: "—"; font-family: var(--mono);
  color: var(--accent); font-size: 13px;
}
strong { color: var(--ink); font-weight: 600; }
em { color: var(--ink2); }
code {
  font-family: var(--mono); font-size: .9em;
  background: var(--paper3); padding: 1px 6px;
  border-radius: 0; color: var(--ink);
}

/* === ANALOGY / CASE / RULE / ACTION → paper-боксы === */
.analogy {
  border-left: 3px solid var(--accent);
  padding: 10px 0 10px 18px;
  margin: 22px 0;
  background: var(--paper2);
  padding: 18px 22px;
  font-family: var(--serif); font-style: italic;
  color: var(--ink2); font-size: 17px; line-height: 1.55;
}
.analogy b {
  color: var(--ink); font-style: normal; font-weight: 600;
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  display: block; margin-bottom: 6px;
}

/* === BOX (info/tip/warn/hw) === */
.box {
  border: none; border-radius: 0;
  padding: 20px 24px; margin: 24px 0;
  background: var(--paper2);
  border-left: 4px solid var(--accent);
  position: relative;
}
.box-label {
  font-family: var(--mono); font-size: 11px;
  letter-spacing: .15em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 10px;
  font-weight: 600; display: block;
}
.box-label::before { display: none; }
.box.info { background: var(--paper2); border-left-color: var(--accent); }
.box.tip  { background: var(--tip-paper); border-left-color: var(--accent); }
.box.warn { background: var(--warn-paper); border-left-color: #a85a3d; }
.box.warn .box-label { color: #a85a3d; }
.box.hw {
  background: var(--ink); color: var(--paper);
  border-left: none;
  margin-top: 28px;
}
.box.hw::before {
  content: "★ ДОМАШКА"; position: absolute;
  top: -12px; left: 24px;
  background: var(--accent); color: var(--paper);
  font-family: var(--mono); font-size: 10px;
  padding: 4px 12px; letter-spacing: .15em;
  text-transform: uppercase; font-weight: 600;
}
.box.hw .box-label { color: var(--accent-light, var(--light-green)); }
.box.hw p, .box.hw li { color: var(--paper2); }
.box p:last-child { margin-bottom: 0; }
.box ul, .box ol { margin: 0; }
.box ul li, .box ol li { border-bottom-color: rgba(245,240,230,.15); }

/* === CHECK list === */
.check {
  list-style: none; padding: 0; margin: 18px 0;
}
.check li {
  display: grid; grid-template-columns: 28px 1fr; gap: 8px;
  padding: 8px 0; border-bottom: 1px dashed var(--rule);
}
.check li::before {
  content: "✓"; font-family: var(--display);
  color: var(--accent); font-size: 18px; line-height: 1;
  position: static; border: none; width: auto; height: auto;
  align-self: baseline;
}
.check li::after { display: none; }

/* === GLOSS === */
dl.gloss { margin: 18px 0; }
dl.gloss dt {
  font-family: var(--mono); font-size: 11px;
  color: var(--accent); text-transform: uppercase;
  letter-spacing: .12em; margin-top: 18px; padding-top: 14px;
  border-top: 1px dashed var(--rule); font-weight: 600;
}
dl.gloss dd {
  margin: 4px 0 0; color: var(--ink2);
  font-size: 15px; line-height: 1.55;
}

/* === QUIZ — paper2 на левой полосе акцента === */
.quiz-block {
  margin: 36px 0 24px;
  border: none; border-radius: 0;
  padding: 24px 28px;
  background: var(--paper2);
  border-left: 4px solid var(--accent);
}
.quiz-head {
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: .15em;
  color: var(--accent); margin-bottom: 18px;
  display: flex; align-items: baseline; gap: 10px; font-weight: 600;
}
.quiz-icon {
  width: auto; height: auto;
  border: none; border-radius: 0;
  background: transparent;
  font-family: var(--display); font-style: italic;
  font-size: 18px; color: var(--accent);
}
.quiz-q { margin-bottom: 22px; padding-bottom: 16px; border-bottom: 1px dashed var(--rule); }
.quiz-q:last-of-type { border-bottom: none; }
.quiz-qtext {
  color: var(--ink); font-weight: 500;
  font-family: var(--display); font-size: 19px;
  margin-bottom: 12px; line-height: 1.35;
}
.quiz-opt {
  display: grid; grid-template-columns: 24px 1fr; gap: 10px;
  padding: 8px 12px; border-radius: 0; cursor: pointer;
  transition: background .12s; font-size: 15px;
  color: var(--ink2); margin-bottom: 4px;
  border-bottom: 1px dotted var(--rule);
}
.quiz-opt:last-child { border-bottom: none; }
.quiz-opt:hover { background: var(--paper); color: var(--ink); }
.quiz-opt input { margin-top: 4px; accent-color: var(--accent); flex-shrink: 0; }
.quiz-btn {
  margin-top: 6px; padding: 12px 24px;
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); border-radius: 0;
  font-family: var(--sans); font-size: 14px;
  font-weight: 600; cursor: pointer;
  transition: background .15s; letter-spacing: .02em;
}
.quiz-btn:hover { background: var(--accent); border-color: var(--accent); }
.quiz-result {
  margin-top: 14px; font-family: var(--mono); font-size: 13px;
  padding: 10px 14px; border-radius: 0;
  border-left: 3px solid var(--rule);
  display: none;
}
.quiz-result:not(:empty) { display: block; }
.quiz-result.pass { background: var(--paper); color: var(--ok); border-left-color: var(--ok); }
.quiz-result.fail { background: var(--warn-paper); color: var(--warn); border-left-color: var(--warn); }
.quiz-result.warn { background: var(--paper); color: var(--ink2); border-left-color: var(--rule); }

/* === HOMEWORK BLOCK === */
.hw-block {
  margin: 32px 0 36px;
  border: none; border-radius: 0;
  padding: 32px 36px;
  background: var(--ink); color: var(--paper);
  position: relative;
}
.hw-block::before {
  content: ""; position: absolute;
  top: -14px; left: 28px;
}
.hw-head {
  display: flex; align-items: baseline; gap: 12px;
  margin-bottom: 14px; padding-top: 6px;
  font-family: var(--mono); font-size: 11px;
  color: var(--paper); font-weight: 600;
  text-transform: uppercase; letter-spacing: .15em;
}
.hw-head::before {
  content: "★ ДОМАШКА";
  position: absolute; top: -14px; left: 28px;
  background: var(--accent); color: var(--paper);
  font-family: var(--mono); font-size: 10px;
  padding: 5px 14px; letter-spacing: .15em;
  text-transform: uppercase; font-weight: 600;
}
.hw-badge {
  font-family: var(--mono); font-size: 10px;
  padding: 2px 8px; border-radius: 0;
  background: transparent; color: var(--accent-light, var(--light-green));
  border: 1px solid var(--accent-light, var(--light-green));
  font-weight: 400; text-transform: uppercase; letter-spacing: .08em;
}
.hw-desc {
  color: var(--paper2); font-family: var(--serif);
  font-size: 16px; line-height: 1.6; margin-bottom: 16px;
}
.hw-ta {
  width: 100%; min-height: 100px;
  background: rgba(245,240,230,.06);
  border: 1px solid var(--paper2); border-radius: 0;
  color: var(--paper); font-family: var(--sans);
  font-size: 14px; padding: 14px;
  resize: vertical; outline: none; line-height: 1.55;
}
.hw-ta:focus { border-color: var(--accent-light, var(--light-green)); }
.hw-btn {
  margin-top: 10px; padding: 10px 20px;
  background: var(--accent-light, var(--light-green));
  border: none; border-radius: 0;
  color: var(--ink); font-family: var(--sans);
  font-size: 13px; font-weight: 600;
  cursor: pointer; transition: background .15s;
  letter-spacing: .02em;
}
.hw-btn:hover { background: #b6cba1; color: var(--ink); }

/* === LESSON NAV FOOTER === */
.lesson-nav-footer {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; border-top: 1px solid var(--rule);
  margin-top: 48px;
}
.nav-btn {
  padding: 12px 22px; border-radius: 0;
  font-family: var(--sans); font-size: 14px;
  cursor: pointer; transition: all .15s;
  font-weight: 600; letter-spacing: .02em;
}
.nav-prev {
  background: transparent; border: 1px solid var(--ink);
  color: var(--ink);
}
.nav-prev:hover { background: var(--ink); color: var(--paper); }
.nav-next {
  background: var(--ink); border: 1px solid var(--ink);
  color: var(--paper);
}
.nav-next:hover { background: var(--accent); border-color: var(--accent); }

/* === COMPLETION SCREEN === */
#completion-screen {
  display: none; max-width: 800px;
  padding: 80px 48px; margin: 0 auto;
  text-align: center;
}
@media (max-width: 760px) { #completion-screen { padding: 48px 24px; } }
#completion-screen::before {
  content: "§ Конец курса";
  display: block; font-family: var(--mono);
  font-size: 11px; letter-spacing: .15em;
  text-transform: uppercase; color: var(--accent);
  margin-bottom: 16px;
}
.complete-icon { display: none; }
.complete-h {
  font-family: var(--display); font-weight: 400;
  font-size: clamp(56px, 7vw, 96px);
  line-height: 1; letter-spacing: -.025em;
  margin: 0 0 16px;
}
.complete-h em { color: var(--accent); font-style: italic; }
.complete-h::after { content: "."; color: var(--accent); }
.complete-sub {
  font-family: var(--display); font-style: italic;
  color: var(--ink2); font-size: 24px;
  margin-bottom: 36px; line-height: 1.3;
}
.complete-links {
  display: flex; flex-wrap: wrap; gap: 14px;
  justify-content: center;
}
.complete-links a {
  padding: 14px 26px; border-radius: 0;
  font-family: var(--sans); font-size: 14px;
  font-weight: 600; letter-spacing: .02em;
}
.complete-links a.primary {
  background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink);
}
.complete-links a.primary:hover { background: var(--accent); border-color: var(--accent); }
.complete-links a.sec {
  background: transparent; border: 1px solid var(--ink); color: var(--ink);
}
.complete-links a.sec:hover { background: var(--ink); color: var(--paper); }

/* === CERTIFICATE === */
.cert-block {
  margin: 40px 0; border: 1px solid var(--rule);
  border-radius: 0; padding: 32px;
  background: var(--paper2);
  display: flex; flex-direction: column; gap: 22px;
}
.cert-preview {
  width: 100%; max-width: 560px; margin: 0 auto;
  border-radius: 0; border: 1px solid var(--rule);
  box-shadow: none;
}
.cert-meta {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px; padding: 16px 0;
  border-top: 1px dashed var(--rule);
  border-bottom: 1px dashed var(--rule);
}
.cert-meta-row span {
  font-family: var(--mono); font-size: 10px;
  color: var(--ink3); text-transform: uppercase;
  letter-spacing: .12em;
}
.cert-meta-row b {
  color: var(--ink); font-family: var(--display);
  font-weight: 400; font-size: 18px;
}
.cert-dl {
  align-self: center;
  padding: 14px 32px; background: var(--ink); color: var(--paper);
  border: none; border-radius: 0;
  font-family: var(--sans); font-size: 14px;
  font-weight: 600; cursor: pointer;
  letter-spacing: .02em; transition: background .15s;
}
.cert-dl:hover { background: var(--accent); }

/* === NEXT ROUTE === */
.next-route {
  margin: 32px 0; padding: 28px 32px;
  border: none; border-radius: 0;
  background: var(--paper2); border-left: 4px solid var(--accent);
}
.next-route-label {
  font-family: var(--mono); font-size: 11px;
  text-transform: uppercase; letter-spacing: .15em;
  color: var(--accent); margin-bottom: 14px; font-weight: 600;
}
.next-route h3 {
  font-family: var(--display); font-weight: 400; font-style: normal;
  font-size: 28px; margin: 0 0 10px;
  color: var(--ink); line-height: 1.15;
}
.next-route p {
  color: var(--ink2); font-family: var(--serif);
  font-size: 16px; margin: 0 0 16px; line-height: 1.55;
}
.next-route a {
  display: inline-block; padding: 12px 22px; border-radius: 0;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  background: var(--ink); color: var(--paper);
  border: none; text-decoration: none; letter-spacing: .02em;
}
.next-route a:hover { background: var(--accent); color: var(--paper); }

/* === SCROLL-TOP === */
.scroll-top {
  position: fixed; bottom: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 0;
  background: var(--ink); color: var(--paper);
  border: none; cursor: pointer;
  font-family: var(--mono); font-size: 18px; font-weight: 400;
  box-shadow: none; z-index: 100;
  display: none; align-items: center; justify-content: center;
  transition: background .2s;
}
.scroll-top.show { display: flex; }
.scroll-top:hover { background: var(--accent); transform: none; }

/* === PREVIEW BANNER === */
.preview-banner {
  position: fixed; top: 0; left: 0; right: 0;
  background: var(--ink); color: var(--paper);
  padding: 10px 24px; text-align: center;
  font-family: var(--mono); font-size: 12px;
  font-weight: 400; z-index: 200;
  letter-spacing: .06em;
  border-bottom: 2px solid var(--accent);
}
.preview-banner a {
  color: var(--accent-light, var(--light-green));
  text-decoration: underline; font-weight: 600;
  border-bottom: none;
}
body.preview-mode header.top { margin-top: 38px; }
body.preview-mode .preview-block {
  margin: 36px 0; padding: 36px;
  border: 1px dashed var(--accent); border-radius: 0;
  background: var(--paper2); text-align: center;
}
body.preview-mode .preview-block h3 {
  font-family: var(--display); font-style: normal;
  font-weight: 400; font-size: 32px;
  color: var(--ink); margin: 0 0 14px;
}
body.preview-mode .preview-block p {
  color: var(--ink2); margin: 0 0 22px;
  font-family: var(--display); font-style: italic; font-size: 19px;
}
body.preview-mode .preview-block a {
  display: inline-block; padding: 14px 28px;
  background: var(--ink); color: var(--paper);
  border-radius: 0; font-family: var(--sans);
  font-size: 14px; font-weight: 600;
  text-decoration: none; letter-spacing: .02em;
}

/* === READ-TIME === */
.read-time {
  display: inline-block; margin-left: 14px;
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .06em;
  font-weight: 400;
}

/* === LESSON TOC === */
.lesson-toc {
  margin: 22px 0 26px; padding: 22px 26px;
  border: none; border-radius: 0;
  background: var(--paper2); border-left: 3px solid var(--rule);
}
.lesson-toc-label {
  font-family: var(--mono); font-size: 10px;
  text-transform: uppercase; letter-spacing: .15em;
  color: var(--ink3); margin-bottom: 12px; font-weight: 600;
}
.lesson-toc ol {
  counter-reset: toc; list-style: none;
  padding: 0; margin: 0; display: grid; gap: 8px;
}
.lesson-toc ol li {
  counter-increment: toc; font-size: 15px; line-height: 1.45;
  display: grid; grid-template-columns: 28px 1fr; gap: 6px;
  padding: 0; border-bottom: none;
}
.lesson-toc ol li::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--mono); font-size: 11px;
  color: var(--accent); margin-right: 0;
}
.lesson-toc ol li a { color: var(--ink2); border: none; }
.lesson-toc ol li a:hover { color: var(--accent); }

/* === FOOTER === */
footer.bottom {
  border-top: 3px double var(--ink);
  padding: 24px 48px; text-align: left;
  color: var(--ink3); font-size: 11px;
  font-family: var(--mono);
  display: flex; justify-content: space-between;
  letter-spacing: .08em; text-transform: uppercase;
  flex-wrap: wrap; gap: 12px;
  max-width: 1400px; margin: 0 auto;
}

/* === STATS & GLOSS-GRID (used in some courses) === */
.stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1px; background: var(--rule);
  border: 1px solid var(--rule);
  margin: 24px 0;
}
.stats .stat {
  background: var(--paper); padding: 22px 24px;
}
.stats .stat b {
  font-family: var(--display); font-size: 36px;
  display: block; line-height: 1; color: var(--ink);
  margin-bottom: 6px; letter-spacing: -.01em;
  font-weight: 400;
}
.stats .stat span {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .08em;
  text-transform: uppercase;
}

.gloss-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px; background: var(--rule);
  border: 1px solid var(--rule); margin: 22px 0;
}
.gloss-grid > div {
  background: var(--paper); padding: 18px 22px;
}

/* === STEPS / TIMELINE / PLATFORMS (used in some lessons) === */
.steps, .timeline, .platforms {
  margin: 22px 0;
}
.step, .tl-row, .plat {
  padding: 18px 0; border-bottom: 1px dashed var(--rule);
}
.step:last-child, .tl-row:last-child, .plat:last-child { border-bottom: none; }
.step-num, .tl-phase {
  font-family: var(--display); font-style: italic;
  font-size: 28px; color: var(--accent); line-height: 1;
}
.step-meta, .tl-kpi, .plat-note {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .06em;
  text-transform: uppercase;
}
.step-body, .tl-what, .plat-name {
  font-family: var(--serif); font-size: 16px;
  color: var(--ink); line-height: 1.5;
}
.plat-head {
  font-family: var(--display); font-weight: 400; font-size: 22px;
  color: var(--ink); margin-bottom: 6px;
}

/* === QUOTE / SOURCES === */
.quote {
  font-family: var(--display); font-style: italic;
  font-size: 22px; line-height: 1.4;
  color: var(--ink); padding: 22px;
  background: var(--paper2);
  border-left: 3px solid var(--accent);
  margin: 22px 0;
}
.sources-list {
  font-family: var(--mono); font-size: 11px;
  color: var(--ink3); letter-spacing: .06em;
  margin-top: 24px; padding-top: 14px;
  border-top: 1px dashed var(--rule);
}
.sources-list li { padding: 4px 0; border: none; display: list-item; }
.sources-list li::before { content: "— "; color: var(--ink3); }