@charset "UTF-8";

:root {
  --teal: #08aaa8;
  --teal-dark: #087f7e;
  --teal-ink: #067b79;
  --mint: #ecf8f5;
  --mint-deep: #d8f0e9;
  --coral: #ff795f;
  --ink: #243c3b;
  --muted: #778684;
  --line: #e6eeea;
  --paper: #ffffff;
  --canvas: #f9fbf8;
  --radius: 20px;
  --shadow: 0 10px 35px rgb(34 76 67 / 4%);
  --font: -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Meiryo", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 116px; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { cursor: pointer; }
button, a, input, summary { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
button:disabled { cursor: default; }
img { display: block; max-width: 100%; }
svg { flex-shrink: 0; vertical-align: middle; }
[hidden] { display: none !important; }
::selection { background: #cdf0e5; color: #174b45; }
:focus-visible { outline: 3px solid #6fd8ca; outline-offset: 5px; }
input:focus-visible { outline: none; }

.site-header {
  position: relative;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  width: min(1344px, calc(100% - 96px));
  height: 90px;
  margin: 0 auto;
}
.header-inner > a:first-child { flex-shrink: 0; }
.brand-logo { width: 232px; height: auto; }
.header-label {
  display: inline-flex;
  align-items: center;
  min-height: 27px;
  padding: 2px 12px;
  border: 0;
  border-radius: 0;
  color: #48877e;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .06em;
  white-space: nowrap;
}
.header-nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 0;
  color: #5b6e69;
  font-size: 12px;
  font-weight: 600;
  transition: color .2s;
}
.nav-link:hover { color: var(--teal); }
.nav-link svg { width: 15px; height: 15px; }
.menu-toggle { display: none; }

.hero {
  position: relative;
  display: grid;
  grid-template-columns: .96fr 1.04fr;
  align-items: center;
  gap: 30px;
  width: min(1260px, calc(100% - 112px));
  min-height: 398px;
  margin: 0 auto;
  padding: 63px 0 62px;
}
.hero-copy { position: relative; z-index: 1; padding-left: 4px; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 18px;
  color: var(--teal);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: .23em;
  line-height: 1.5;
}
.eyebrow::before { width: 23px; height: 2px; border-radius: 2px; background: var(--teal); content: ""; }
.hero-title {
  margin: 0;
  color: #254743;
  font-size: clamp(30px, 2.8vw, 41px);
  font-weight: 750;
  letter-spacing: -.045em;
  line-height: 1.65;
}
.hero-title em, .hero-title span { color: var(--teal); font-style: normal; }
.hero-description { margin: 17px 0 0; color: #7b8c85; font-size: 12px; line-height: 2.15; letter-spacing: .025em; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 27px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
  min-height: 43px;
  padding: 10px 19px;
  border: 1px solid transparent;
  border-radius: 9px;
  font-size: 11px;
  font-weight: 700;
  line-height: 1.6;
  transition: background .2s, border-color .2s, box-shadow .2s, transform .2s;
}
.button svg { width: 15px; height: 15px; }
.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--teal); color: #fff; box-shadow: 0 5px 13px rgb(8 170 168 / 13%); }
.button-primary:hover { background: #099b97; box-shadow: 0 7px 16px rgb(8 170 168 / 19%); }
.button-secondary { border-color: #d7e5de; background: transparent; color: #5e7b70; }
.button-secondary:hover { border-color: #a0d4c7; background: #eff7f1; }
.hero-visual { position: relative; width: 100%; padding-top: 10px; }
.hero-image {
  position: relative;
  width: 100%;
  height: auto;
  aspect-ratio: 2.19 / 1;
  object-fit: cover;
  border-radius: 25px;
}
.hero-caption { margin: 12px 6px 0; color: #99a79e; font-size: 9px; line-height: 1.6; text-align: right; letter-spacing: .02em; }
.sparkle { position: absolute; pointer-events: none; color: var(--coral); }
.sparkle svg { width: 22px; height: 22px; }
.sparkle-one, .sparkle-1 { top: -7px; right: 30px; transform: rotate(10deg); }
.sparkle-two, .sparkle-2 { bottom: 14px; left: -18px; color: var(--teal); transform: scale(.7); }

.page-shell {
  display: grid;
  grid-template-columns: 231px minmax(0, 1fr);
  align-items: start;
  gap: 46px;
  width: min(1260px, calc(100% - 112px));
  margin: 0 auto;
  padding-bottom: 75px;
}
.sidebar { position: sticky; top: 30px; padding: 25px 0 0; }
.sidebar-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 18px;
  padding-left: 15px;
  color: #7d9086;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .17em;
  line-height: 1.5;
}
.sidebar-heading button { display: none; }
.sidebar-nav { display: flex; flex-direction: column; gap: 6px; }
.sidebar-link {
  display: flex;
  align-items: center;
  gap: 13px;
  min-height: 51px;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: #6e8378;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.65;
  text-align: left;
  transition: background .18s, color .18s, border-color .18s;
}
.sidebar-link:hover { background: #edf4ee; color: #328477; }
.sidebar-link.active, .sidebar-link[aria-current="page"] { border-color: #d5ece3; background: #eaf5ee; color: #187d6c; }
.sidebar-number {
  display: grid;
  flex: 0 0 25px;
  place-items: center;
  width: 25px;
  height: 25px;
  border-radius: 8px;
  background: #eef3ed;
  color: #91a394;
  font-size: 10px;
  font-weight: 700;
  line-height: 1;
}
.sidebar-link.active .sidebar-number, .sidebar-link[aria-current="page"] .sidebar-number { background: #d7eadd; color: #548b6c; }
.sidebar-number svg { width: 14px; height: 14px; }
.sidebar-link > svg:last-child { width: 12px; height: 12px; margin-left: auto; opacity: .6; }
.sidebar-note {
  margin: 25px 11px 0;
  padding: 19px 14px 17px;
  border-top: 1px solid #e2eae1;
  color: #9aa99d;
  font-size: 10px;
  line-height: 1.95;
}
.sidebar-note strong { display: block; margin-bottom: 5px; color: #7e9484; font-size: 10px; }
.sidebar-note svg { width: 14px; height: 14px; margin: -2px 5px 0 0; }

.main-content {
  min-width: 0;
  padding: 30px 37px 37px;
  border: 1px solid var(--line);
  border-radius: 17px;
  background: var(--paper);
  box-shadow: var(--shadow);
}
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; color: #a1ada5; font-size: 9px; line-height: 1.7; }
.breadcrumb a:hover { color: var(--teal); }
.breadcrumb svg { width: 11px; height: 11px; }
.breadcrumb > :last-child { color: #758c7d; }
.content-heading { margin-bottom: 25px; }
.section-label { display: inline-flex; align-items: center; gap: 6px; margin: 0 0 8px; color: var(--teal); font-size: 9px; font-weight: 800; letter-spacing: .16em; }
.section-title { margin: 0; color: #304e43; font-size: 25px; font-weight: 750; letter-spacing: -.025em; line-height: 1.6; }
.section-lead { margin: 9px 0 0; color: #8d9d91; font-size: 11px; line-height: 2; }
.preview-notice {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 0 0 21px;
  padding: 11px 14px;
  border: 1px solid #f1e9d5;
  border-radius: 8px;
  background: #fdfbf4;
  color: #a49269;
  font-size: 10px;
  line-height: 1.9;
}
.preview-notice p { margin: 0; }
.notice-icon { display: inline-flex; flex: 0 0 15px; align-items: center; justify-content: center; width: 15px; height: 15px; margin-top: 2px; color: #c5ae79; }
.notice-icon svg { width: 15px; height: 15px; }
.preview-notice strong { color: #a18a56; font-weight: 650; }

.welcome-card {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 167px;
  overflow: hidden;
  margin-bottom: 25px;
  padding: 24px 27px;
  border: 1px solid #def0e5;
  border-radius: 12px;
  background: linear-gradient(105deg, #f0f8ee 0%, #edf7ef 67%, #eaf5ec 100%);
}
.welcome-copy { position: relative; z-index: 1; max-width: 82%; }
.welcome-copy .section-label { color: #7eaa7b; }
.welcome-copy h2, .welcome-copy h3 { margin: 0 0 7px; color: #52754d; font-size: 18px; font-weight: 700; letter-spacing: -.025em; line-height: 1.7; }
.welcome-copy p { margin: 0; color: #8a9e81; font-size: 11px; line-height: 2; }
.welcome-copy a { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; color: #6c9b65; font-size: 10px; font-weight: 700; }
.welcome-copy a svg { width: 12px; height: 12px; }
.welcome-art { position: relative; flex: 0 0 112px; align-self: center; width: 112px; color: #9cc48d; }
.welcome-art > svg { width: 100%; height: auto; }
.welcome-art img { width: 100%; }

.section-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 15px; margin: 24px 0 18px; }
.section-toolbar > h2, .section-toolbar > h3 { margin: 0; color: #3d5b4c; font-size: 14px; font-weight: 700; letter-spacing: .01em; }
.search-field {
  position: relative;
  display: flex;
  align-items: center;
  width: 247px;
  min-width: 0;
  height: 37px;
  margin-left: auto;
  padding: 0 11px;
  border: 1px solid #e4ebe4;
  border-radius: 8px;
  background: #fcfdfb;
  transition: border-color .2s, box-shadow .2s;
}
.search-field:focus-within { border-color: #9bd6c8; box-shadow: 0 0 0 3px #edf8f3; }
.search-field input { width: 100%; min-width: 0; height: 100%; padding: 0 8px; border: 0; background: transparent; color: var(--ink); font-size: 10px; }
.search-field input::placeholder { color: #a1afa2; }
.search-icon { display: inline-flex; flex-shrink: 0; color: #9daf9f; }
.search-icon svg { width: 14px; height: 14px; }
.search-hint { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 19px; border: 1px solid #e4eae1; border-radius: 4px; color: #b2bdb0; font-size: 9px; line-height: 1; }
.curriculum-list { display: grid; gap: 11px; }
.lesson-card {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  text-align: left;
  transition: transform .2s, border-color .2s, box-shadow .2s;
}
a.lesson-card:hover, button.lesson-card:hover { transform: translateY(-2px); border-color: #bcdfd3; box-shadow: 0 6px 16px rgb(35 96 70 / 5%); }
.lesson-icon { display: grid; flex: 0 0 46px; place-items: center; width: 46px; height: 46px; border-radius: 12px; background: #eef7ef; color: #7ba879; }
.lesson-icon svg { width: 23px; height: 23px; }
.lesson-body { min-width: 0; flex: 1; }
.lesson-meta { display: flex; align-items: center; gap: 9px; margin-bottom: 3px; color: #a0b19f; font-size: 9px; font-weight: 600; letter-spacing: .06em; }
.lesson-title { margin: 0; color: #466247; font-size: 13px; font-weight: 700; line-height: 1.8; }
.lesson-description { margin: 4px 0 0; color: #95a38f; font-size: 10px; line-height: 1.8; }
.lesson-arrow { display: grid; flex: 0 0 26px; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: #f5f8f2; color: #a4b29b; }
.lesson-arrow svg { width: 13px; height: 13px; }
.lesson-tag { display: inline-block; padding: 2px 8px; border: 1px solid #deead8; border-radius: 4px; color: #96aa88; font-size: 9px; line-height: 1.5; white-space: nowrap; }

.empty-state {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 258px;
  padding: 29px 25px 25px;
  border: 1px dashed #dce8dc;
  border-radius: 12px;
  background: #fcfdfb;
  text-align: center;
}
.empty-icon { display: grid; place-items: center; width: 57px; height: 57px; margin-bottom: 15px; border-radius: 17px; background: #f0f6eb; color: #afc69e; }
.empty-icon svg { width: 28px; height: 28px; }
.empty-title { margin: 0 0 8px; color: #6c8860; font-size: 14px; font-weight: 700; line-height: 1.8; }
.empty-description { max-width: 440px; margin: 0; color: #9baa91; font-size: 11px; line-height: 2; }
.empty-note { display: flex; align-items: center; gap: 5px; margin: 15px 0 0; color: #b3bea9; font-size: 9px; line-height: 1.8; }
.empty-note svg { width: 12px; height: 12px; }
.empty-state .button { margin-top: 18px; }

.quick-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; margin-top: 23px; }
.quick-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  padding: 19px 18px 17px;
  border: 1px solid #e4ece1;
  border-radius: 10px;
  background: #fff;
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.quick-card:hover { transform: translateY(-3px); border-color: #bad8b9; box-shadow: 0 7px 17px rgb(42 85 47 / 5%); }
.quick-icon { display: grid; place-items: center; width: 31px; height: 31px; margin-bottom: 12px; border-radius: 9px; background: #edf6ee; color: #85ae82; }
.quick-icon svg { width: 17px; height: 17px; }
.quick-card:nth-child(2) .quick-icon { background: #fff2e9; color: #e0aa86; }
.quick-card:nth-child(3) .quick-icon { background: #f0f1fb; color: #a2a7cf; }
.quick-label { display: flex; align-items: center; gap: 6px; width: 100%; margin: 0; color: #5f7957; font-size: 11px; font-weight: 700; line-height: 1.8; }
.quick-label svg { width: 12px; height: 12px; margin-left: auto; color: #afbea7; }
.quick-description { margin: 5px 0 0; color: #a0ae95; font-size: 9px; line-height: 1.9; }
.content-section { scroll-margin-top: 30px; }
.content-section + .content-section { margin-top: 35px; }

.resources-panel { overflow: hidden; border: 1px solid var(--line); border-radius: 12px; }
.resource-row { display: flex; align-items: center; gap: 15px; width: 100%; padding: 21px; border: 0; background: #fff; text-align: left; }
.resource-row + .resource-row { border-top: 1px solid var(--line); }
a.resource-row:hover, button.resource-row:hover { background: #fbfdf9; }
.resource-icon { display: grid; flex: 0 0 40px; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: #edf5ed; color: #8aae7f; }
.resource-icon svg { width: 20px; height: 20px; }
.resource-info { flex: 1; min-width: 0; }
.resource-title { margin: 0; color: #58774f; font-size: 12px; font-weight: 700; }
.resource-description { margin: 3px 0 0; color: #9aaa8f; font-size: 10px; line-height: 1.9; }
.resource-row > svg { width: 15px; height: 15px; color: #adc1a1; }
.faq-list { display: grid; gap: 11px; }
.faq-list details { overflow: hidden; border: 1px solid var(--line); border-radius: 10px; background: #fff; }
.faq-list summary { position: relative; display: flex; align-items: center; gap: 11px; min-height: 65px; padding: 17px 49px 17px 21px; color: #628057; font-size: 12px; font-weight: 650; line-height: 1.8; list-style: none; cursor: pointer; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { position: absolute; right: 23px; width: 7px; height: 7px; border-right: 1.5px solid #a3b69a; border-bottom: 1.5px solid #a3b69a; content: ""; transform: rotate(45deg); transition: transform .2s; }
.faq-list details[open] summary::after { transform: rotate(225deg); }
.faq-list details[open] { border-color: #cde2c4; }
.faq-answer { margin: 0 21px; padding: 0 0 20px; color: #91a185; font-size: 11px; line-height: 2.1; }
.faq-answer p { margin: 0; }
.page-outline { margin-top: 25px; padding-top: 17px; border-top: 1px solid var(--line); color: #a0af95; font-size: 10px; }
.page-outline a { color: #7b9d6d; }
.page-outline a:hover { color: var(--teal); }

.site-footer { border-top: 1px solid #e7ede2; background: #f4f7f0; }
.footer-inner { display: flex; align-items: center; gap: 25px; width: min(1260px, calc(100% - 112px)); min-height: 99px; margin: 0 auto; }
.footer-logo { width: 232px; height: auto; opacity: .72; }
.footer-note { margin: 0 0 0 auto; color: #a4b29a; font-size: 9px; letter-spacing: .035em; line-height: 1.8; text-align: right; }
.mobile-backdrop { display: none; }
.toast { position: fixed; z-index: 100; right: 28px; bottom: 26px; max-width: min(370px, calc(100vw - 40px)); padding: 13px 20px; border: 1px solid #d9e9dc; border-radius: 11px; background: #fff; color: #5c7a54; box-shadow: 0 9px 35px rgb(39 71 43 / 14%); font-size: 12px; line-height: 1.8; opacity: 0; pointer-events: none; transform: translateY(12px); transition: opacity .2s, transform .2s; }
.toast.is-visible, .toast.visible, .toast.show { opacity: 1; transform: translateY(0); }

/* The learning manual */
.hero-note { display: inline-flex; align-items: center; gap: 7px; margin: 17px 0 0; color: #8da095; font-size: 10px; line-height: 1.8; }
.hero-note::before { width: 5px; height: 5px; border-radius: 50%; background: #92c9b2; content: ""; }
.section-lead { font-size: 12px; }
.section-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin: 29px 0 16px; }
.section-row h2, .section-row h3 { margin: 0; font-size: 16px; font-weight: 700; line-height: 1.7; }
.section-row > a { display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0; color: var(--teal-ink); font-size: 11px; font-weight: 600; }
.section-row > a svg { width: 13px; height: 13px; }
.overview-stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); overflow: hidden; margin: 0 0 23px; border: 1px solid #e3ece3; border-radius: 11px; background: #fff; }
.stat { padding: 18px 20px 16px; }
.stat + .stat { position: relative; }
.stat + .stat::before { position: absolute; inset: 21px auto 21px 0; width: 1px; background: var(--line); content: ""; }
.stat strong { display: block; color: #3d7461; font-size: 24px; font-weight: 700; line-height: 1.3; letter-spacing: -.025em; }
.stat strong small, .stat strong span { margin-left: 4px; font-size: 10px; font-weight: 500; letter-spacing: 0; }
.stat > span, .stat > p { display: block; margin: 6px 0 0; color: #8d9d8a; font-size: 10px; line-height: 1.7; }
.progress-card { margin: 26px 10px 0; padding: 18px 15px 16px; border: 1px solid #dceade; border-radius: 11px; background: #f2f8ee; }
.progress-card h3, .progress-card h4 { margin: 0 0 9px; color: #6e8b5b; font-size: 10px; font-weight: 700; }
.progress-label { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; color: #839773; font-size: 10px; line-height: 1.7; }
.progress-label strong { color: #6b9255; font-size: 15px; font-weight: 700; }
.progress-label strong span, .progress-label strong small { font-size: 10px; font-weight: 500; }
.progress-track { height: 5px; overflow: hidden; margin: 10px 0 0; border-radius: 10px; background: #e1ecd9; }
.progress-fill { width: 0; height: 100%; border-radius: inherit; background: #85b675; transition: width .4s ease; }
.progress-card p { margin: 11px 0 0; color: #a0af93; font-size: 9px; line-height: 1.8; }
.main-content > .progress-card, .content-section > .progress-card { margin: 0 0 25px; padding: 20px 22px; background: #f4faf0; }
.main-content > .progress-card .progress-track, .content-section > .progress-card .progress-track { height: 6px; }
.main-content > .progress-card .progress-label, .content-section > .progress-card .progress-label { font-size: 11px; }
.filter-tabs { display: flex; flex-wrap: wrap; align-items: center; gap: 7px; margin: 19px 0; }
.filter-tab { display: inline-flex; align-items: center; justify-content: center; gap: 5px; min-height: 31px; padding: 6px 12px; border: 1px solid #e1eae0; border-radius: 7px; background: #fff; color: #8b9e80; font-size: 10px; font-weight: 600; line-height: 1.6; transition: background .2s, border-color .2s, color .2s; }
.filter-tab:hover { border-color: #acd3a7; color: #69905e; }
.filter-tab.active, .filter-tab[aria-selected="true"], .filter-tab[aria-pressed="true"] { border-color: #c8e2d4; background: #eaf6ee; color: #4f8f6a; }
.filter-tab span { padding: 0 4px; border-radius: 3px; background: rgb(110 150 90 / 7%); font-size: 9px; }
.lesson-card { padding: 18px 19px; }
.lesson-title { font-size: 14px; }
.lesson-description { font-size: 11px; }
.lesson-icon { border-radius: 13px; font-size: 16px; font-weight: 750; }
.lesson-card.current { border-color: #8ccdc0; background: #fdfffc; box-shadow: 0 2px 8px rgb(55 113 73 / 3%); }
.lesson-card.current .lesson-icon { background: #dff2e6; color: #5a9c6e; }
.lesson-card.completed { background: #fbfdf9; }
.lesson-card.completed .lesson-icon { background: #e3f3e4; color: #78a870; }
.lesson-card.completed .lesson-arrow { background: #e4f2de; color: #7fa16a; }
.lesson-card.completed .lesson-meta { color: #88ad7a; }
.review-badge, .required-badge, .tag, .chip { display: inline-flex; align-items: center; gap: 4px; min-height: 20px; padding: 2px 7px; border: 1px solid transparent; border-radius: 5px; font-size: 9px; font-weight: 600; letter-spacing: .01em; line-height: 1.5; white-space: nowrap; }
.review-badge { border-color: #f3e3c9; background: #fff8ed; color: #be9b61; }
.review-badge svg { width: 11px; height: 11px; }
.required-badge { border-color: #f7ddd2; background: #fff1eb; color: #d79273; }
.tag { background: #eef6e9; color: #8ca575; }
.chip { border-color: #e1e9da; color: #91a181; }
.search-results { display: grid; gap: 10px; }
.no-results { padding: 45px 20px; color: #9bae91; font-size: 12px; text-align: center; }

.step-detail { min-width: 0; }
.article-header { margin: 0 0 25px; padding-bottom: 24px; border-bottom: 1px solid var(--line); }
.article-header .section-label { display: flex; align-items: center; gap: 9px; margin-bottom: 11px; }
.step-number-badge { display: inline-flex; align-items: center; gap: 6px; min-height: 23px; padding: 3px 9px; border-radius: 5px; background: #eaf5e7; color: #78a36b; font-size: 9px; font-weight: 800; letter-spacing: .1em; line-height: 1.5; }
.article-header h1, .article-header h2 { margin: 0; color: #345342; font-size: 26px; font-weight: 750; letter-spacing: -.03em; line-height: 1.7; }
.article-header > p { margin: 12px 0 0; color: #8b9b80; font-size: 12px; line-height: 2; }
.article-header .review-badge, .article-header .required-badge { vertical-align: middle; }
.step-grid { display: grid; grid-template-columns: minmax(0, 1fr) 174px; gap: 26px; align-items: start; }
.step-reading, .article-body { min-width: 0; color: #7d9071; font-size: 13px; line-height: 2.15; }
.article-body > p, .step-reading > p { margin: 0 0 21px; }
.article-body strong, .step-reading strong { color: #5b784b; font-weight: 650; }
.article-body a:not(.button):not(.resource-row):not(.video-card), .detail-text a { color: var(--teal-ink); text-decoration: underline; text-decoration-color: #c6e5d6; text-underline-offset: 4px; }
.article-body > img, .detail-section > img { width: 100%; height: auto; margin: 20px 0; border: 1px solid #e2e9db; border-radius: 10px; }
.article-body figure, .detail-section figure { margin: 21px 0 25px; }
.article-body figure img, .detail-section figure img { width: 100%; height: auto; border: 1px solid #e2e9db; border-radius: 10px; }
.article-body figcaption, .detail-section figcaption { margin-top: 8px; color: #a9b59d; font-size: 10px; line-height: 1.8; text-align: center; }
.detail-section { margin-bottom: 30px; scroll-margin-top: 105px; }
.detail-section:last-child { margin-bottom: 0; }
.detail-title { display: flex; align-items: center; gap: 9px; margin: 0 0 14px; color: #527144; font-size: 16px; font-weight: 700; letter-spacing: -.01em; line-height: 1.8; }
.detail-title svg { width: 18px; height: 18px; color: #98b58a; }
.detail-title::before { flex: 0 0 3px; width: 3px; height: 16px; border-radius: 3px; background: #b0cda2; content: ""; }
.detail-text { margin: 0 0 17px; font-size: 13px; line-height: 2.15; }
.detail-text p { margin: 0 0 14px; }
.detail-text p:last-child { margin-bottom: 0; }
.detail-text ul, .detail-text ol, .article-body ul, .article-body ol { margin: 12px 0 18px; padding-left: 1.5em; }
.detail-text li, .article-body li { padding-left: 3px; }
.detail-text li + li, .article-body li + li { margin-top: 5px; }
.step-toc { position: sticky; top: 28px; padding: 17px 14px; border: 1px solid #e1ebda; border-radius: 10px; background: #fbfdf8; }
.step-toc h3, .step-toc h4, .step-toc > p { margin: 0 0 12px; color: #91a080; font-size: 9px; font-weight: 700; letter-spacing: .07em; }
.step-toc a { display: block; margin: 9px 0 0; padding-left: 10px; border-left: 2px solid #e5eddc; color: #99a88a; font-size: 10px; line-height: 1.8; }
.step-toc a:hover { border-color: #a5c292; color: #6e9756; }
.callout { margin: 20px 0; padding: 19px 21px; border: 1px solid #e1eada; border-radius: 10px; background: #f7faf3; color: #8e9f7b; font-size: 12px; line-height: 2; }
.callout-title { display: flex; align-items: center; gap: 7px; margin: 0 0 8px; color: #7e9a64; font-size: 12px; font-weight: 700; line-height: 1.8; }
.callout-title svg { width: 16px; height: 16px; }
.callout p { margin: 0; }
.callout p + p { margin-top: 9px; }
.callout.review, .callout-review { border-color: #f1e3cc; background: #fffbf2; color: #ad9a74; }
.callout.review .callout-title, .callout-review .callout-title { color: #b49a65; }
.callout.required, .callout-required { border-color: #f0ddd0; background: #fff8f1; color: #b09376; }
.callout.required .callout-title, .callout-required .callout-title { color: #c5956e; }
.checklist { display: grid; gap: 9px; margin: 15px 0 23px; padding: 0; list-style: none; }
.check-item { display: flex; align-items: flex-start; gap: 11px; min-height: 49px; padding: 13px 15px; border: 1px solid #e4ebde; border-radius: 8px; background: #fff; color: #829773; font-size: 12px; line-height: 1.9; cursor: pointer; transition: border-color .2s, background .2s; }
.check-item:hover { border-color: #bad4ac; background: #fdfefa; }
.check-box, .check-item input[type="checkbox"] { position: relative; display: inline-grid; flex: 0 0 17px; place-items: center; width: 17px; height: 17px; margin: 3px 0 0; border: 1.5px solid #c9d9bf; border-radius: 5px; background: #fff; color: #fff; appearance: none; transition: border-color .2s, background .2s; }
.check-item input[type="checkbox"]:checked, .check-item.checked .check-box, .check-item.is-checked .check-box { border-color: #86b575; background: #86b575; }
.check-item input[type="checkbox"]:checked::after, .check-item.checked .check-box::after, .check-item.is-checked .check-box::after { width: 7px; height: 4px; margin-top: -2px; border-bottom: 1.5px solid #fff; border-left: 1.5px solid #fff; content: ""; transform: rotate(-45deg); }
.check-box svg { width: 11px; height: 11px; }
.check-item:has(input:checked) { border-color: #d6e6cc; background: #f7fbf3; color: #829972; }
.check-item > span:last-child { flex: 1; }
.check-item small { display: block; margin-top: 3px; color: #a6b29a; font-size: 10px; line-height: 1.8; }
.check-item strong { color: #738f62; font-weight: 650; }
.completion-button { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 45px; padding: 12px 22px; border: 1px solid #81b897; border-radius: 9px; background: #78ac87; color: #fff; font-size: 12px; font-weight: 700; line-height: 1.7; transition: background .2s, transform .2s; }
.completion-button:hover { background: #689f77; transform: translateY(-1px); }
.completion-button svg { width: 16px; height: 16px; }
.completion-button.completed, .completion-button[aria-pressed="true"] { border-color: #cddfc5; background: #f0f7eb; color: #85a473; }
.completion-button:disabled { border-color: #e1e8da; background: #edf1e7; color: #b1bea7; transform: none; }
.step-nav { display: flex; align-items: stretch; justify-content: space-between; gap: 14px; margin-top: 32px; padding-top: 25px; border-top: 1px solid var(--line); }
.step-nav a, .step-nav button { display: flex; flex: 1; align-items: center; gap: 9px; min-height: 62px; padding: 12px 16px; border: 1px solid #e1ebda; border-radius: 9px; background: #fff; color: #87a073; font-size: 11px; line-height: 1.8; text-align: left; }
.step-nav a:hover, .step-nav button:hover { border-color: #b6d1a5; background: #fbfdf8; }
.step-nav a:last-child, .step-nav button:last-child { justify-content: flex-end; text-align: right; }
.step-nav svg { width: 15px; height: 15px; }
.step-nav small { display: block; color: #b0bda5; font-size: 9px; }
.template-box { position: relative; overflow: hidden; margin: 17px 0 23px; padding: 24px 21px; border: 1px solid #e4eadd; border-radius: 10px; background: #f8faf5; color: #8a9b78; font-size: 12px; line-height: 2.1; }
.template-box pre { overflow: auto; margin: 0; white-space: pre-wrap; overflow-wrap: anywhere; font: inherit; }
.template-box:has(.copy-button) { padding-top: 49px; }
.copy-button { position: absolute; top: 12px; right: 12px; display: inline-flex; align-items: center; gap: 5px; padding: 5px 9px; border: 1px solid #dce6d3; border-radius: 5px; background: #fff; color: #93a77f; font-size: 9px; line-height: 1.6; }
.copy-button:hover { border-color: #b9d0a5; color: #75955b; }
.copy-button svg { width: 12px; height: 12px; }
.video-card { display: flex; align-items: center; gap: 15px; margin: 17px 0 22px; padding: 18px; border: 1px solid #e1e9d9; border-radius: 10px; background: #fbfdf8; color: #7f966c; font-size: 12px; line-height: 1.9; }
.video-card:hover { border-color: #b8d3a4; background: #f5faef; }
.video-play { display: grid; flex: 0 0 41px; place-items: center; width: 41px; height: 41px; border-radius: 50%; background: #e9f2df; color: #96b77b; }
.video-play svg { width: 17px; height: 17px; margin-left: 2px; }
.video-card strong { display: block; font-size: 12px; }
.video-card small { display: block; margin-top: 3px; color: #a1b08e; font-size: 10px; }
.video-card > svg { width: 14px; height: 14px; margin-left: auto; color: #a8ba96; }
.timeline { display: grid; gap: 0; margin: 19px 0 27px; }
.timeline-step { position: relative; padding: 0 0 24px 31px; color: #8fa37c; font-size: 12px; line-height: 2; }
.timeline-step::before { position: absolute; z-index: 1; top: 6px; left: 0; width: 11px; height: 11px; border: 3px solid #e9f4e0; border-radius: 50%; background: #a7c68d; content: ""; }
.timeline-step:not(:last-child)::after { position: absolute; top: 18px; bottom: -5px; left: 5px; width: 1px; background: #dfead6; content: ""; }
.timeline-step:last-child { padding-bottom: 0; }
.timeline-step h3, .timeline-step h4, .timeline-step strong { display: block; margin: 0 0 5px; color: #75955e; font-size: 12px; font-weight: 700; }
.timeline-step p { margin: 0; font-size: 11px; }
.event-banner { display: flex; align-items: center; gap: 22px; margin: 24px 0; padding: 23px; border: 1px solid #f1dfcf; border-radius: 11px; background: #fff8ef; }
.event-date { flex: 0 0 64px; padding-right: 21px; border-right: 1px solid #efdeca; color: #c3a17c; font-size: 11px; font-weight: 600; line-height: 1.6; text-align: center; }
.event-date strong { display: block; color: #c3946d; font-size: 25px; font-weight: 750; line-height: 1.3; }
.event-date span { display: block; margin-top: 3px; font-size: 9px; }
.event-copy { flex: 1; color: #baa184; font-size: 11px; line-height: 1.9; }
.event-copy h3, .event-copy strong { display: block; margin: 0 0 5px; color: #b58b60; font-size: 13px; font-weight: 700; }
.event-copy p { margin: 0; }
.event-banner > svg { width: 18px; height: 18px; color: #d5b797; }
.resource-group { margin-bottom: 28px; }
.resource-group:last-child { margin-bottom: 0; }
.resource-group > h2, .resource-group > h3 { margin: 0 0 13px; color: #6c8c59; font-size: 14px; font-weight: 700; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; margin: -1px !important; padding: 0 !important; border: 0 !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; }
.mobile-nav-toggle { display: none; }

@media (min-width: 1600px) {
  .header-inner { width: min(1370px, calc(100% - 140px)); }
  .hero { min-height: 435px; padding-top: 72px; padding-bottom: 72px; }
}
@media (max-width: 1130px) {
  .header-inner { width: calc(100% - 56px); gap: 16px; }
  .header-nav { gap: 20px; }
  .hero, .page-shell, .footer-inner { width: calc(100% - 64px); }
  .hero { gap: 24px; min-height: 360px; padding: 48px 0; }
  .hero-title { font-size: 32px; }
  .hero-description { font-size: 11px; }
  .page-shell { grid-template-columns: 207px minmax(0, 1fr); gap: 26px; }
  .main-content { padding: 27px; }
  .sidebar-link { gap: 10px; padding-left: 11px; font-size: 11px; }
  .welcome-card { padding: 22px; }
  .welcome-art { flex-basis: 84px; width: 84px; }
  .welcome-copy h2, .welcome-copy h3 { font-size: 16px; }
  .quick-grid { gap: 10px; }
  .quick-card { padding: 16px 13px; }
  .step-grid { grid-template-columns: minmax(0, 1fr); }
  .step-toc { position: static; order: -1; display: flex; flex-wrap: wrap; column-gap: 15px; row-gap: 8px; padding: 13px 16px; }
  .step-toc h3, .step-toc h4, .step-toc > p { width: 100%; margin-bottom: 0; }
  .step-toc a { margin-top: 0; }
}
@media (max-width: 920px) {
  .header-inner { height: 78px; }
  .brand-logo { width: 162px; }
  .header-label { font-size: 9px; padding-inline: 9px; }
  .header-nav { gap: 17px; }
  .nav-link { font-size: 10px; }
  .hero { grid-template-columns: 1fr 1fr; gap: 15px; padding: 43px 0; }
  .hero-title { font-size: 27px; }
  .hero-description br { display: none; }
  .hero-description { max-width: 310px; }
  .hero-actions { gap: 8px; margin-top: 22px; }
  .button { padding: 9px 13px; font-size: 10px; }
  .hero-image { border-radius: 20px; }
  .hero-caption { font-size: 8px; }
  .page-shell { grid-template-columns: 180px minmax(0, 1fr); gap: 21px; }
  .main-content { padding: 24px; }
  .sidebar-link { gap: 8px; padding-inline: 8px; font-size: 10px; }
  .sidebar-number { flex-basis: 23px; width: 23px; height: 23px; }
  .sidebar-note { margin-inline: 5px; padding-inline: 7px; font-size: 9px; }
  .section-title { font-size: 22px; }
  .welcome-art { display: none; }
  .welcome-copy { max-width: 100%; }
  .welcome-card { min-height: 150px; }
  .section-toolbar { flex-wrap: wrap; gap: 11px; }
  .search-field { width: 100%; }
  .quick-grid { grid-template-columns: 1fr; gap: 8px; }
  .quick-card { display: grid; grid-template-columns: 31px 1fr; column-gap: 13px; padding: 15px 17px; }
  .quick-icon { grid-row: 1 / 3; align-self: center; margin: 0; }
  .quick-description { margin-top: 2px; }
  .overview-stats .stat { padding: 15px 12px; }
  .stat strong { font-size: 21px; }
  .stat > span, .stat > p { font-size: 9px; }
  .lesson-title { font-size: 13px; }
  .lesson-description { font-size: 10px; }
}
@media (max-width: 760px) {
  html { scroll-padding-top: 95px; }
  .site-header { position: sticky; top: 0; }
  .header-inner { width: calc(100% - 36px); height: 73px; gap: 12px; }
  .brand-logo { width: clamp(140px, 41vw, 180px); }
  .header-label { min-height: 24px; padding: 2px 8px; font-size: 8px; }
  .header-nav { display: none; }
  .menu-toggle { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; width: 36px; height: 36px; margin-left: auto; padding: 8px; border: 1px solid #e1ebe0; border-radius: 9px; background: #fcfdfa; color: #6b9870; }
  .menu-toggle svg { width: 18px; height: 18px; }
  .menu-toggle span { width: 17px; height: 1.5px; border-radius: 1px; background: currentColor; }
  .hero, .page-shell, .footer-inner { width: calc(100% - 40px); }
  .hero { grid-template-columns: 1fr; gap: 22px; min-height: auto; padding: 38px 0 30px; }
  .hero-copy { padding: 0 6px; }
  .eyebrow { margin-bottom: 13px; font-size: 9px; }
  .hero-title { font-size: clamp(27px, 6.3vw, 37px); line-height: 1.7; }
  .hero-description { max-width: 100%; margin-top: 13px; font-size: 11px; }
  .hero-description br { display: initial; }
  .hero-actions { margin-top: 22px; }
  .button { min-height: 42px; padding: 10px 17px; font-size: 10px; }
  .hero-visual { padding: 0; }
  .hero-image { width: 100%; max-height: none; border-radius: 19px; object-fit: contain; }
  .hero-caption { margin-top: 8px; font-size: 8px; }
  .sparkle { display: none; }
  .page-shell { display: block; padding-bottom: 38px; }
  .sidebar { position: fixed; z-index: 80; inset: 0 auto 0 0; width: min(300px, calc(100vw - 55px)); height: 100dvh; overflow: auto; padding: 31px 21px; border-right: 1px solid #e2ecdf; background: var(--canvas); box-shadow: 12px 0 35px rgb(32 57 38 / 8%); transform: translateX(-105%); transition: transform .25s ease; }
  .sidebar.is-open, .sidebar.open, body.menu-open .sidebar, body.sidebar-open .sidebar { transform: translateX(0); }
  .sidebar.drawer-open, body.drawer-open .sidebar, .drawer-open .sidebar { transform: translateX(0); }
  .sidebar-heading { padding-left: 9px; margin-bottom: 24px; color: #78916d; font-size: 11px; }
  .sidebar-heading button { display: grid; place-items: center; width: 29px; height: 29px; padding: 5px; border: 0; border-radius: 7px; background: #e9f1e3; color: #71945e; }
  .sidebar-heading button svg { width: 15px; height: 15px; }
  .sidebar-link { min-height: 55px; gap: 13px; padding: 12px; font-size: 12px; }
  .sidebar-number { flex-basis: 26px; width: 26px; height: 26px; }
  .sidebar-note { margin: 25px 8px 0; padding: 20px 7px; font-size: 10px; }
  .mobile-backdrop { position: fixed; z-index: 70; inset: 0; display: block; border: 0; background: rgb(27 48 34 / 25%); opacity: 0; visibility: hidden; transition: opacity .25s, visibility .25s; backdrop-filter: blur(2px); }
  .mobile-backdrop.is-visible, .mobile-backdrop.is-open, .mobile-backdrop.active, body.menu-open .mobile-backdrop, body.sidebar-open .mobile-backdrop { opacity: 1; visibility: visible; }
  body.drawer-open .mobile-backdrop, .drawer-open .mobile-backdrop { opacity: 1; visibility: visible; }
  .main-content { padding: 24px 21px; border-radius: 14px; }
  .breadcrumb { margin-bottom: 21px; font-size: 8px; }
  .content-heading { margin-bottom: 21px; }
  .section-label { margin-bottom: 7px; font-size: 8px; }
  .section-title { font-size: 23px; line-height: 1.65; }
  .section-lead { margin-top: 8px; font-size: 10px; }
  .preview-notice { gap: 8px; padding: 10px 11px; font-size: 9px; }
  .notice-icon { flex-basis: 13px; width: 13px; height: 13px; }
  .notice-icon svg { width: 13px; height: 13px; }
  .welcome-card { min-height: 146px; margin-bottom: 23px; padding: 21px; }
  .welcome-copy h2, .welcome-copy h3 { font-size: 16px; }
  .welcome-copy p { font-size: 10px; }
  .section-toolbar { gap: 13px; margin-top: 23px; margin-bottom: 15px; }
  .section-toolbar > h2, .section-toolbar > h3 { font-size: 13px; }
  .search-field { height: 38px; }
  .search-field input { font-size: 10px; }
  .empty-state { min-height: 246px; padding: 25px 16px; }
  .empty-title { font-size: 13px; }
  .empty-description { font-size: 10px; }
  .empty-note { font-size: 8px; }
  .quick-grid { margin-top: 18px; }
  .quick-card { min-height: 74px; }
  .quick-label { font-size: 11px; }
  .quick-description { font-size: 9px; }
  .lesson-card { gap: 12px; padding: 16px 13px; }
  .lesson-icon { flex-basis: 37px; width: 37px; height: 37px; border-radius: 10px; }
  .lesson-icon svg { width: 19px; height: 19px; }
  .lesson-title { font-size: 12px; }
  .lesson-description { font-size: 9px; }
  .lesson-arrow { flex-basis: 22px; width: 22px; height: 22px; }
  .lesson-tag { font-size: 8px; }
  .resource-row { gap: 12px; padding: 17px 14px; }
  .resource-title { font-size: 11px; }
  .resource-description { font-size: 9px; }
  .faq-list summary { padding: 16px 39px 16px 17px; font-size: 11px; }
  .faq-list summary::after { right: 19px; }
  .faq-answer { margin-inline: 17px; font-size: 10px; }
  .footer-inner { flex-direction: column; justify-content: center; gap: 12px; min-height: 125px; padding: 24px 0; }
  .footer-logo { width: 180px; }
  .footer-note { margin: 0; font-size: 8px; text-align: center; }
  .toast { right: 20px; bottom: 20px; padding: 12px 16px; font-size: 11px; }
  .mobile-nav-toggle { display: flex; align-items: center; gap: 8px; min-height: 40px; width: 100%; margin-bottom: 14px; padding: 10px 13px; border: 1px solid #dae9d2; border-radius: 9px; background: #f1f7eb; color: #83a16d; font-size: 10px; font-weight: 650; text-align: left; }
  .mobile-nav-toggle svg { width: 15px; height: 15px; }
  .mobile-nav-toggle > svg:last-child { margin-left: auto; }
  .hero-note { margin-top: 13px; font-size: 9px; }
  .section-row { margin-top: 24px; }
  .section-row h2, .section-row h3 { font-size: 14px; }
  .section-row > a { font-size: 9px; }
  .overview-stats { margin-bottom: 20px; }
  .overview-stats .stat { padding: 15px 11px 14px; }
  .stat strong { font-size: 22px; }
  .stat strong small, .stat strong span { margin-left: 2px; font-size: 9px; }
  .stat > span, .stat > p { font-size: 8px; }
  .stat + .stat::before { inset-block: 19px; }
  .progress-card { margin-inline: 8px; }
  .main-content > .progress-card, .content-section > .progress-card { padding: 17px; }
  .filter-tabs { gap: 6px; margin: 16px 0; }
  .filter-tab { min-height: 30px; padding: 5px 10px; font-size: 9px; }
  .review-badge, .required-badge, .tag, .chip { padding: 2px 6px; font-size: 8px; }
  .lesson-card { gap: 11px; padding: 15px 12px; }
  .lesson-title { font-size: 12px; }
  .lesson-description { font-size: 10px; }
  .lesson-meta { flex-wrap: wrap; gap: 6px; }
  .lesson-icon { font-size: 14px; }
  .article-header { margin-bottom: 22px; padding-bottom: 21px; }
  .article-header h1, .article-header h2 { font-size: 23px; }
  .article-header > p { font-size: 11px; }
  .step-reading, .article-body { font-size: 12px; }
  .step-grid { gap: 23px; }
  .step-toc { padding: 13px; column-gap: 13px; }
  .step-toc a { font-size: 9px; }
  .detail-section { margin-bottom: 25px; }
  .detail-title { margin-bottom: 12px; font-size: 14px; }
  .detail-text { font-size: 12px; }
  .callout { padding: 16px; font-size: 11px; }
  .callout-title { font-size: 11px; }
  .check-item { gap: 10px; padding: 12px; font-size: 11px; }
  .check-box, .check-item input[type="checkbox"] { margin-top: 3px; }
  .check-item small { font-size: 9px; }
  .completion-button { width: 100%; min-height: 45px; padding: 11px 16px; font-size: 11px; }
  .step-nav { gap: 10px; margin-top: 25px; padding-top: 20px; }
  .step-nav a, .step-nav button { gap: 7px; padding: 10px 12px; font-size: 10px; }
  .step-nav small { font-size: 8px; }
  .step-nav svg { width: 12px; height: 12px; }
  .template-box { padding: 20px 16px; font-size: 11px; }
  .video-card { gap: 12px; padding: 15px; }
  .video-play { flex-basis: 34px; width: 34px; height: 34px; }
  .video-card strong { font-size: 11px; }
  .video-card small { font-size: 9px; }
  .timeline-step { padding-left: 26px; }
  .timeline-step h3, .timeline-step h4, .timeline-step strong { font-size: 11px; }
  .timeline-step p { font-size: 10px; }
  .event-banner { gap: 16px; padding: 18px 16px; }
  .event-date { flex-basis: 56px; padding-right: 16px; }
  .event-date strong { font-size: 23px; }
  .event-copy { font-size: 10px; }
  .event-copy h3, .event-copy strong { font-size: 12px; }
  .event-banner > svg { display: none; }
  .resource-group > h2, .resource-group > h3 { font-size: 13px; }
}
@media (max-width: 390px) {
  .header-inner { width: calc(100% - 28px); gap: 8px; }
  .brand-logo { width: clamp(125px, 41vw, 160px); }
  .header-label { font-size: 7px; letter-spacing: .02em; }
  .hero, .page-shell, .footer-inner { width: calc(100% - 28px); }
  .hero-copy { padding-inline: 2px; }
  .hero-title { font-size: 26px; }
  .main-content { padding: 21px 17px; }
  .section-title { font-size: 21px; }
  .welcome-card { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}
@media print {
  body { background: #fff; }
  .site-header, .sidebar, .hero-actions, .search-field, .mobile-backdrop, .toast { display: none !important; }
  .hero, .page-shell, .footer-inner { width: 100%; }
  .hero { min-height: auto; padding: 0 0 25px; }
  .page-shell { display: block; }
  .main-content { padding: 0; border: 0; box-shadow: none; }
  .hero-title { font-size: 27px; }
  .quick-card, .welcome-card, .empty-state, .faq-list details { break-inside: avoid; }
}

/* Readable lesson typography and the Wonderful Step palette. */
.skip-link { position: fixed; z-index: 200; top: 12px; left: 18px; padding: 10px 16px; border-radius: 8px; background: var(--teal-dark); color: #fff; font-size: 13px; transform: translateY(-150%); }
.skip-link:focus { transform: translateY(0); }
.reading-mode .hero { display: none; }
.reading-mode .page-shell { padding-top: 30px; }
.nav-link { color: #657b74; font-size: 12px; }
.header-label { color: #438a80; }
.hero-description { color: #738582; font-size: 13px; }
.hero-caption { color: #8b9f98; font-size: 10px; }
.hero-note { font-size: 11px; }
.sidebar-heading { color: #8c9e98; font-size: 10px; }
.sidebar-link { color: #738582; font-size: 12px; }
.sidebar-number { background: #edf3ee; color: #8da496; }
.sidebar-link:hover { background: #f0f8f2; color: #167c7a; }
.sidebar-link.active, .sidebar-link[aria-current="page"] { border-color: #cfeae0; background: #eaf7f3; color: #167c7a; }
.sidebar-link.active .sidebar-number, .sidebar-link[aria-current="page"] .sidebar-number { background: #d5eee5; color: #4e9b86; }
.sidebar-note { color: #91a096; font-size: 11px; }
.sidebar-note strong { color: #738b7c; font-size: 11px; }
.sidebar-note a { display: inline-block; margin-top: 8px; color: #468a78; font-size: 11px; }
.breadcrumb { color: #a0aca4; font-size: 10px; }
.section-label, .eyebrow { font-size: 10px; }
.section-title, .section-row h2, .section-row h3, .article-header h1, .article-header h2 { color: #254743; }
.section-title { font-size: 26px; }
.section-lead { color: #738582; font-size: 14px; }
.welcome-card { border-color: #d9eee3; background: linear-gradient(105deg, #eff9f5 0%, #e8f6ef 100%); }
.welcome-copy h2, .welcome-copy h3 { color: #347666; font-size: 20px; }
.welcome-copy p { color: #768d7d; font-size: 13px; }
.welcome-copy a { color: #167c7a; font-size: 12px; }
.welcome-copy .section-label { color: #5f9c78; }
.welcome-art { color: #84bfa7; }
.overview-stats { border-color: #e1ebe4; }
.stat strong { color: #167c7a; }
.stat > span, .stat > p { color: #7f9389; font-size: 11px; }
.progress-card { border-color: #d9eada; background: #eff9f6; }
.progress-card h3, .progress-card h4 { color: #5f8c70; font-size: 11px; }
.progress-label { color: #7f9584; font-size: 11px; }
.progress-label strong { color: #388e77; }
.progress-track { background: #e1ebd9; }
.progress-fill { background: #77b597; }
.progress-card p { color: #98a893; font-size: 10px; }
.main-content > .progress-card, .content-section > .progress-card { background: #eff9f2; }
.section-toolbar > h2, .section-toolbar > h3 { color: #36584d; font-size: 16px; }
.search-field { height: 39px; }
.search-field input { color: #42655a; font-size: 12px; }
.search-field input::placeholder { color: #a1afa3; }
.lesson-title { color: #254743; font-size: 16px; }
.lesson-description { color: #738582; font-size: 12px; }
.lesson-meta { color: #8d9f94; font-size: 10px; }
.lesson-icon { background: #edf8f4; color: #64a99d; }
.lesson-card.current .lesson-icon { background: #dff3e8; color: #4a9d87; }
.lesson-card.current { border-color: #a6d5c7; background: #fdfffd; }
.lesson-card.completed { background: #f9fdf9; }
.lesson-card.completed .lesson-icon { background: #e4f3e8; color: #68a58a; }
.lesson-card.completed .lesson-arrow { background: #e8f4e8; color: #6ca288; }
.lesson-card.completed .lesson-meta { color: #6f9f85; }
.lesson-arrow { color: #91b19c; background: #f2f8ef; }
.review-badge { border-color: #f6ddd0; background: #fff1e9; color: #ca8b6b; }
.required-badge { border-color: #f7d6c9; background: #fff0e9; color: #cf886d; }
.tag { background: #eef8ef; color: #7b9d80; }
.chip { border-color: #dce9df; color: #849c89; }
.quick-label { color: #37675b; font-size: 12px; }
.quick-description { color: #869b8b; font-size: 11px; }
.quick-icon { color: #77ac90; background: #edf8f0; }
.quick-label svg { color: #93b5a1; }
.resource-title { color: #315e53; font-size: 14px; }
.resource-description { color: #738582; font-size: 13px; }
.resource-icon { background: #edf7f0; color: #7daa8e; }
.resource-row > svg { color: #92b09b; }
.resource-group > h2, .resource-group > h3 { color: #386e5d; font-size: 16px; }
.faq-list summary { color: #3b6558; font-size: 14px; }
.faq-answer { color: #738582; font-size: 13px; }
.page-outline { color: #92a192; font-size: 11px; }
.page-outline a { color: #508c74; }
.filter-tab { color: #829b8b; font-size: 11px; }
.filter-tab:hover { border-color: #a6d1b8; color: #478871; }
.filter-tab.active, .filter-tab[aria-selected="true"], .filter-tab[aria-pressed="true"] { border-color: #c5e5d4; background: #edf8f0; color: #39886f; }
.filter-tab span { color: inherit; background: #e0eee2; }
.article-header > p { color: #738582; font-size: 14px; }
.article-body, .step-reading, .detail-text { color: #607b70; font-size: 14px; line-height: 2.1; }
.article-body strong, .step-reading strong { color: #2f6052; }
.detail-title { color: #286b60; font-size: 17px; }
.detail-title::before { background: #9dcbb6; }
.detail-title svg { color: #7faf96; }
.step-number-badge { background: #e9f6eb; color: #6b9a77; font-size: 10px; }
.step-toc { border-color: #dceade; background: #fbfdf9; }
.step-toc h3, .step-toc h4, .step-toc > p { color: #859b88; font-size: 10px; }
.step-toc a { color: #859c8a; font-size: 11px; border-color: #e1ecdd; }
.step-toc a:hover { border-color: #97c4a8; color: #498568; }
.callout { border-color: #dcebdc; background: #f5faf2; color: #7b9581; font-size: 13px; }
.callout-title { color: #4f9071; font-size: 13px; }
.callout.review, .callout-review { border-color: #f6dfd1; background: #fff7ee; color: #b09176; }
.callout.review .callout-title, .callout-review .callout-title { color: #c38c68; }
.callout.required, .callout-required { border-color: #f7d9ca; background: #fff4ec; color: #ad8b76; }
.callout.required .callout-title, .callout-required .callout-title { color: #ca8c6b; }
.check-item { border-color: #dfeadd; color: #627e6c; font-size: 14px; }
.check-item:hover { border-color: #b4d5bf; background: #fcfefb; }
.check-box, .check-item input[type="checkbox"] { margin-top: 5px; border-color: #bdd7c0; }
.check-item input[type="checkbox"]:checked, .check-item.checked .check-box, .check-item.is-checked .check-box { border-color: #73ad8a; background: #73ad8a; }
.check-item:has(input:checked) { border-color: #cfe4d1; background: #f6fbf3; color: #759279; }
.check-item small { color: #91a38e; font-size: 12px; }
.check-item strong { color: #4b7e60; }
.completion-button { border-color: #08aaa8; background: #08aaa8; color: #fff; font-size: 13px; }
.completion-button:hover { background: #099b97; }
.completion-button.completed, .completion-button[aria-pressed="true"] { border-color: #cce5d2; background: #edf8ed; color: #71a180; }
.step-nav a, .step-nav button { border-color: #e0ebde; color: #5f8e73; font-size: 12px; }
.step-nav small { color: #99ac97; font-size: 10px; }
.template-box { background: #f7faf4; border-color: #e0eadb; color: #67836c; font-size: 13px; }
.copy-button { color: #7b9b80; font-size: 10px; }
.video-card { border-color: #deeadc; background: #fbfdf9; color: #5f8b70; }
.video-card strong { color: #49785c; font-size: 13px; }
.video-card small { color: #91a48b; font-size: 11px; }
.video-play { background: #e6f2e4; color: #83b08d; }
.timeline-step { color: #7a9581; font-size: 13px; }
.timeline-step::before { border-color: #e6f3e5; background: #8cba99; }
.timeline-step:not(:last-child)::after { background: #dae9d7; }
.timeline-step h3, .timeline-step h4, .timeline-step strong { color: #508264; font-size: 13px; }
.timeline-step p { font-size: 12px; }
.event-banner { border-color: #f4ddcc; background: #fff7ed; }
.event-date { color: #c29c7a; border-color: #f1ddc9; }
.event-date strong { color: #cc9670; }
.event-copy { color: #ad927a; font-size: 12px; }
.event-copy h3, .event-copy strong { color: #bd8b66; font-size: 14px; }
.empty-title { color: #5e8c71; }
.empty-description { color: #8aa08e; font-size: 12px; }
.empty-icon { background: #eef7ea; color: #99b99e; }
.toast { color: #45816b; }
@media (min-width: 761px) {
  .sidebar { max-height: calc(100dvh - 60px); overflow-y: auto; scrollbar-width: thin; scrollbar-color: #d8e7da transparent; }
}
@media (max-width: 920px) {
  .hero-description { font-size: 12px; }
  .sidebar-link { font-size: 11px; }
  .lesson-title { font-size: 15px; }
  .stat > span, .stat > p { font-size: 10px; }
}
@media (max-width: 760px) {
  body.drawer-open, body.sidebar-open { overflow: hidden; }
  .nav-link { font-size: 12px; }
  .hero-title { font-size: clamp(27px, 6.3vw, 37px); }
  .hero-description { font-size: 12px; }
  .hero-caption { font-size: 9px; }
  .hero-note { font-size: 10px; }
  .sidebar-link { font-size: 13px; }
  .sidebar-note, .sidebar-note strong, .sidebar-note a { font-size: 11px; }
  .section-title { font-size: 24px; }
  .section-lead { font-size: 13px; }
  .welcome-copy h2, .welcome-copy h3 { font-size: 18px; }
  .welcome-copy p { font-size: 12px; }
  .welcome-copy a { font-size: 11px; }
  .stat > span, .stat > p { font-size: 10px; }
  .section-toolbar > h2, .section-toolbar > h3 { font-size: 15px; }
  .search-field input { font-size: 12px; }
  .lesson-title { font-size: 14px; }
  .lesson-description { font-size: 12px; line-height: 1.9; }
  .lesson-meta { font-size: 10px; }
  .lesson-card { padding: 16px 13px; }
  .lesson-icon { align-self: flex-start; margin-top: 4px; }
  .review-badge, .required-badge, .tag, .chip { font-size: 9px; }
  .filter-tab { font-size: 10px; }
  .quick-label { font-size: 13px; }
  .quick-description { font-size: 11px; }
  .article-header > p { font-size: 13px; }
  .article-body, .step-reading, .detail-text { font-size: 14px; }
  .detail-title { font-size: 16px; }
  .callout, .callout-title { font-size: 12px; }
  .check-item { font-size: 13px; }
  .check-item small { font-size: 11px; }
  .completion-button { font-size: 12px; }
  .step-nav a, .step-nav button { font-size: 11px; }
  .step-nav small { font-size: 9px; }
  .template-box { font-size: 12px; }
  .resource-title { font-size: 14px; }
  .resource-description { font-size: 12px; }
  .resource-group > h2, .resource-group > h3 { font-size: 15px; }
  .faq-list summary { font-size: 13px; }
  .faq-answer { font-size: 12px; }
  .event-copy { font-size: 11px; }
  .event-copy h3, .event-copy strong { font-size: 13px; }
  .reading-mode .page-shell { padding-top: 20px; }
}

/* Styles for the connected lesson and resource views. */
.header-nav .nav-link[aria-current="page"] { color: var(--teal-ink); }
.sidebar-caption { margin: 20px 14px 7px; padding-top: 18px; border-top: 1px solid #e1eae0; color: #92a399; font-size: 9px; font-weight: 750; letter-spacing: .14em; line-height: 1.6; }
.step-sidebar-link { min-height: 40px; gap: 11px; padding-top: 7px; padding-bottom: 7px; font-size: 11px; }
.step-sidebar-link .sidebar-number { flex-basis: 23px; width: 23px; height: 23px; border-radius: 7px; font-size: 9px; }
.sidebar-number.is-complete { background: #e2f0e4; color: #70a48a; }
.sidebar-review { flex: 0 0 5px; width: 5px; margin-left: auto; color: #e6a083; font-size: 9px; line-height: 1; }
.progress-label strong { color: #57866e; font-size: 11px; font-weight: 700; }
.progress-label > span { color: #167c7a; font-size: 18px; font-weight: 750; line-height: 1.4; }
.progress-label > span small { color: #90a18e; font-size: 10px; font-weight: 500; }
.event-date { flex-basis: 138px; padding-right: 22px; text-align: left; }
.event-date > span { margin: 0 0 5px; color: #c39a79; font-size: 8px; font-weight: 750; letter-spacing: .09em; }
.event-date time { display: block; color: #c99168; font-size: 34px; font-weight: 750; letter-spacing: -.035em; line-height: 1.2; white-space: nowrap; }
.event-date time small { margin-left: 3px; font-size: 10px; font-weight: 600; letter-spacing: 0; }
.event-copy { color: #9a7d65; }
.event-copy > strong { color: #b17d57; }
.detail-title h2, .detail-title h3 { margin: 0; color: inherit; font: inherit; }
.detail-title:has(.step-number-badge)::before { display: none; }
.detail-title > .step-number-badge { display: grid; flex: 0 0 28px; place-items: center; width: 28px; height: 28px; padding: 0; border-radius: 8px; background: #e5f5ec; color: #65a28c; font-size: 13px; letter-spacing: 0; }
.detail-subheading { display: flex; align-items: center; gap: 10px; margin: 0 0 15px; color: #286b60; font-size: 17px; font-weight: 700; line-height: 1.8; }
.detail-subheading::before { flex: 0 0 3px; width: 3px; height: 16px; border-radius: 2px; background: #a4cfba; content: ""; }
.detail-section { margin-top: 28px; }
.resource-group > .detail-subheading { font-size: 15px; }
.callout { display: flex; align-items: flex-start; gap: 11px; }
.callout > .notice-icon, .callout > svg { flex: 0 0 18px; width: 18px; height: 18px; margin-top: 4px; color: #78aa8b; }
.callout > .notice-icon svg { width: 18px; height: 18px; }
.callout > div { min-width: 0; flex: 1; }
.callout > div > a { display: inline-flex; align-items: center; margin-top: 8px; color: #368571; font-size: 12px; font-weight: 600; }
.callout.coral { border-color: #f5dcd0; background: #fff6ef; color: #a07e6b; }
.callout.coral .callout-title { color: #c28666; }
.callout.coral > .notice-icon, .callout.coral > svg { color: #dd9a7c; }
.callout.coral a { color: #bc8466; }
.review-callout { display: flex; align-items: center; gap: 15px; margin: 25px 0 29px; padding: 20px; border: 1px solid #f4dfd0; border-radius: 10px; background: #fff9f1; }
.review-callout > svg { flex: 0 0 22px; width: 22px; height: 22px; color: #d6a180; }
.review-callout > div { min-width: 0; flex: 1; }
.review-callout strong { display: block; color: #ba8a68; font-size: 13px; font-weight: 700; line-height: 1.8; }
.review-callout p { margin: 4px 0 0; color: #ad947d; font-size: 12px; line-height: 1.9; }
.review-callout > .button { flex-shrink: 0; gap: 8px; padding-inline: 13px; border-color: #ecd5bd; color: #b59470; font-size: 10px; }
.review-callout > .button:hover { border-color: #dcbf9a; background: #fff6e9; }
.review-timeline { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 13px; }
.review-point { position: relative; display: flex; flex-direction: column; align-items: flex-start; min-width: 0; padding: 20px 17px; border: 1px solid #f0dfd0; border-radius: 10px; background: #fffbf5; transition: background .2s, border-color .2s, transform .2s; }
.review-point:hover { border-color: #e2c2a5; background: #fff8ee; transform: translateY(-2px); }
.review-point > span { color: #c6a382; font-size: 9px; font-weight: 750; letter-spacing: .1em; }
.review-point > strong { display: block; margin-top: 7px; padding-right: 12px; color: #ad825b; font-size: 13px; font-weight: 700; line-height: 1.8; }
.review-point > small { margin-top: 7px; color: #b8a28a; font-size: 10px; line-height: 1.8; }
.review-point > svg { position: absolute; top: 22px; right: 14px; width: 14px; height: 14px; color: #d1b597; }
.step-goal { display: flex; align-items: flex-start; gap: 14px; margin: 0 0 30px; padding: 22px; border: 1px solid #d7ecdf; border-radius: 11px; background: #eff9f3; }
.step-goal > span { display: grid; flex: 0 0 36px; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: #def1e5; color: #78aa91; }
.step-goal > span svg { width: 19px; height: 19px; }
.step-goal > div { min-width: 0; flex: 1; }
.step-goal strong { display: block; color: #5a9580; font-size: 11px; font-weight: 700; letter-spacing: .03em; line-height: 1.8; }
.step-goal p { margin: 6px 0 0; color: #527d6c; font-size: 14px; line-height: 2; }
.completion-area { margin-top: 31px; padding: 27px 0 0; border-top: 1px dashed #dce9dc; text-align: center; }
.completion-area p { margin: 12px 0 0; color: #92a28e; font-size: 11px; line-height: 1.9; }
.template-box, .template-box:has(.copy-button) { padding: 0; }
.template-header { display: flex; align-items: center; justify-content: space-between; gap: 13px; padding: 12px 17px; border-bottom: 1px solid #e2eadb; background: #f0f6eb; }
.template-header > span { color: #83a078; font-size: 11px; font-weight: 650; }
.template-header .copy-button { position: static; flex-shrink: 0; padding: 5px 9px; }
.template-box pre { padding: 21px; color: #688366; }
.completed-label { display: inline-flex; align-items: center; gap: 4px; color: #6ca58c; font-size: 10px; font-weight: 600; }
.restricted-label { display: inline-flex; align-items: center; gap: 4px; padding: 1px 6px; border: 1px solid #f1dacd; border-radius: 4px; background: #fff5ef; color: #bf967c; font-size: 9px; font-weight: 600; letter-spacing: 0; }
.resource-total { display: inline-block; margin-left: 6px; padding: 2px 8px; border-radius: 5px; background: #f0f7ed; color: #8ba180; font-size: 10px; font-weight: 600; vertical-align: middle; }
.resource-access-note { margin: 24px 0 0; color: #90a18b; font-size: 11px; line-height: 1.9; }
.page-outline svg { width: 11px; height: 11px; margin-left: 3px; }
.page-outline > span { margin-left: 5px; color: #a1ad9a; }
.empty-state > svg { width: 26px; height: 26px; margin-bottom: 15px; color: #a5c2a3; }
@media (max-width: 920px) {
  .step-sidebar-link { gap: 8px; font-size: 10px; }
  .review-timeline { gap: 9px; }
  .review-point { padding: 18px 13px; }
  .review-point > strong { font-size: 12px; }
  .review-point > small { font-size: 9px; }
  .review-callout { flex-wrap: wrap; }
  .review-callout > .button { margin-left: 37px; }
  .event-date { flex-basis: 118px; padding-right: 17px; }
  .event-date time { font-size: 30px; }
}
@media (max-width: 760px) {
  .step-sidebar-link { min-height: 42px; gap: 12px; font-size: 12px; }
  .sidebar-caption { margin-top: 20px; font-size: 10px; }
  .sidebar-review { font-size: 10px; }
  .event-banner { gap: 17px; }
  .event-date { flex-basis: 114px; padding-right: 16px; }
  .event-date > span { font-size: 7px; letter-spacing: .07em; }
  .event-date time { font-size: 30px; }
  .event-date time small { font-size: 9px; }
  .detail-subheading { font-size: 16px; }
  .detail-section { margin-top: 25px; }
  .callout { gap: 9px; }
  .callout > .notice-icon, .callout > svg { flex-basis: 16px; width: 16px; height: 16px; }
  .callout > .notice-icon svg { width: 16px; height: 16px; }
  .callout > div > a { font-size: 11px; }
  .review-timeline { grid-template-columns: 1fr; gap: 10px; }
  .review-point { padding: 15px 18px; }
  .review-point > strong { margin-top: 3px; font-size: 13px; }
  .review-point > small { margin-top: 4px; font-size: 10px; }
  .review-point > svg { top: 41px; right: 18px; }
  .review-callout { gap: 11px; padding: 18px 16px; }
  .review-callout > svg { flex-basis: 20px; width: 20px; height: 20px; }
  .review-callout p { font-size: 11px; }
  .review-callout > .button { margin-left: 31px; }
  .step-goal { gap: 12px; padding: 18px 16px; }
  .step-goal > span { flex-basis: 31px; width: 31px; height: 31px; border-radius: 9px; }
  .step-goal > span svg { width: 17px; height: 17px; }
  .step-goal p { font-size: 13px; }
  .completion-area { margin-top: 27px; padding-top: 23px; }
  .completion-area p { font-size: 10px; }
  .template-header { padding: 11px 13px; }
  .template-header > span { font-size: 10px; }
  .template-box pre { padding: 18px 16px; }
  .page-outline > span { display: block; margin-left: 0; margin-top: 4px; }
}
@media (max-width: 390px) {
  .event-banner { gap: 12px; padding-inline: 13px; }
  .event-date { flex-basis: 101px; padding-right: 12px; }
  .event-date time { font-size: 27px; }
  .event-copy > strong { font-size: 12px; }
}

/* Supporting copy stays legible at instructional reading sizes. */
.section-lead, .hero-description, .lesson-description, .resource-description, .faq-answer { color: #637971; }
.lesson-meta, .breadcrumb, .breadcrumb > :last-child, .sidebar-heading { color: #6b8073; }
.sidebar-caption { color: #6e8274; }
.sidebar-note, .sidebar-note strong { color: #687f6e; }
.welcome-copy p, .stat > span, .stat > p, .quick-description { color: #6a8170; }
.progress-card p, .progress-label, .progress-label > span small { color: #69816c; }
.review-badge, .required-badge { color: #a36f55; }
.review-callout strong, .review-point > strong { color: #9e7254; }
.review-callout p, .review-point > small, .review-point > span { color: #967a61; }
.callout.coral, .callout.coral .callout-title, .callout.coral a { color: #9d715d; }
.event-copy { color: #91735c; }
.event-copy > strong { color: #a57651; }
.check-item small, .completion-area p, .resource-access-note { color: #6b816c; }
.restricted-label { color: #9a715c; }
.completed-label { color: #4f816b; }
.resource-total { color: #6a8464; }
.page-outline, .page-outline > span { color: #75866e; }