:root {
  --ink: #211819;
  --muted: #706263;
  --paper: #f8f3ea;
  --paper-deep: #eee3d1;
  --maroon: #681d24;
  --maroon-deep: #421116;
  --gold: #bd8d38;
  --line: rgba(82, 35, 35, .18);
  --white: #fffdf8;
  --shadow: 0 18px 50px rgba(55, 25, 18, .09);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }
body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 10% 12%, rgba(189,141,56,.09), transparent 27rem),
    linear-gradient(90deg, rgba(104,29,36,.025) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 3.5rem 3.5rem, auto;
  font-family: "Microsoft Himalaya", "Noto Serif Tibetan", "Jomolhari", serif;
  font-size: 1.18rem;
  line-height: 1.95;
}
html.lightbox-open { overflow: hidden; }
html.lightbox-open body {
  position: fixed;
  width: 100%;
  overflow: hidden;
}
html[lang="en"] body, html[lang="de"] body, html[lang^="zh"] body {
  font-family: Inter, "Noto Sans", "PingFang TC", "PingFang SC", "Microsoft JhengHei", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.72;
}
html[lang="en"] .lead, html[lang="de"] .lead, html[lang^="zh"] .lead { line-height: 1.65; }
html[lang="en"] h1, html[lang="de"] h1, html[lang^="zh"] h1 { letter-spacing: -.025em; }
a { color: inherit; }
.progress { position: fixed; inset: 0 0 auto; height: 4px; z-index: 20; background: rgba(255,255,255,.15); }
.progress span { display: block; width: 0; height: 100%; background: var(--gold); }
.masthead { background: var(--maroon-deep); color: #fff8e8; border-bottom: 1px solid rgba(255,255,255,.15); }
.masthead-inner { max-width: 1240px; margin: auto; padding: .9rem 2rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.masthead p { margin: 0; color: #ddcdbb; font-size: .95rem; }
.header-actions { display: flex; align-items: center; gap: 1.25rem; }
.language-switcher { display: flex; padding: .2rem; border: 1px solid rgba(255,255,255,.25); border-radius: 999px; }
.language-switcher button { min-width: 2.65rem; padding: .32rem .58rem; border: 0; border-radius: 999px; color: #ddcdbb; background: transparent; font: inherit; font-size: .72rem; line-height: 1.4; cursor: pointer; }
.language-switcher button:hover { color: #fff; }
.language-switcher button.active { color: var(--maroon-deep); background: #edc978; font-weight: 700; }
.auth-button { padding: .45rem .8rem; border: 1px solid rgba(255,255,255,.3); border-radius: .45rem; color: #fff8e8; background: transparent; font: inherit; font-size: .78rem; cursor: pointer; white-space: nowrap; }
.auth-button:hover { border-color: var(--gold); background: rgba(255,255,255,.08); }
.edit-button[aria-pressed="true"] { border-color: #edc978; color: var(--maroon-deep); background: #edc978; font-weight: 700; }
.edit-button[aria-pressed="true"]:hover { background: #f4d88f; }
.brand { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; font-weight: 700; font-size: 1.15rem; }
.brand-mark { display: grid; place-items: center; width: 2.1rem; height: 2.1rem; border: 1px solid var(--gold); border-radius: 50%; color: #edc978; }
.page-shell { max-width: 1240px; margin: 0 auto; padding: 3.5rem 2rem 6rem; display: grid; grid-template-columns: 260px minmax(0, 800px); gap: 4rem; align-items: start; }
.rail { position: sticky; top: 2rem; border-top: 3px solid var(--gold); padding-top: 1rem; }
.rail-label { margin: 0 0 .75rem; color: var(--muted); font-size: .78rem; letter-spacing: .12em; }
.rail nav { display: grid; }
.rail a { padding: .42rem .7rem; border-left: 2px solid var(--line); color: var(--muted); text-decoration: none; font-size: .9rem; line-height: 1.55; transition: .2s ease; }
.rail a:hover, .rail a.active { color: var(--maroon); border-left-color: var(--maroon); background: rgba(104,29,36,.045); transform: translateX(3px); }
.intro { padding: .5rem 0 4rem; border-bottom: 1px solid var(--line); }
.eyebrow { color: var(--gold); font-size: .85rem; font-weight: 700; letter-spacing: .08em; margin: 0 0 .3rem; }
h1 { color: var(--maroon); font-size: clamp(3.3rem, 9vw, 6.8rem); line-height: 1.15; margin: 0; font-weight: 500; letter-spacing: .015em; }
.lead { max-width: 42rem; font-size: clamp(1.3rem, 2.2vw, 1.6rem); line-height: 2; margin: 1.4rem 0 2rem; }
.source-attribution { max-width: 46rem; margin: 1rem 0 1.5rem; padding: .9rem 1.15rem; border-left: 3px solid var(--gold); background: rgba(189,141,56,.08); }
.source-attribution span { display: block; color: var(--maroon); font-size: .78rem; font-weight: 700; }
.source-attribution p { margin: .2rem 0 0; color: var(--muted); font-size: .92rem; line-height: 1.75; }
.essence { border: 1px solid var(--line); background: rgba(255,253,248,.6); padding: 1.1rem 1.35rem; display: grid; grid-template-columns: auto 1fr; gap: 1.2rem; align-items: baseline; box-shadow: var(--shadow); }
.essence span { color: var(--maroon); font-size: .82rem; font-weight: 700; white-space: nowrap; }
.essence p { margin: 0; }
.section { padding: 4.3rem 0; border-bottom: 1px solid var(--line); }
.section-heading { display: flex; gap: 1rem; align-items: center; margin-bottom: 1.1rem; }
.section-heading > span { display: grid; place-items: center; flex: 0 0 2.7rem; height: 2.7rem; border-radius: 50%; color: #fff8e8; background: var(--maroon); font-size: 1rem; }
h2 { margin: 0; color: var(--maroon-deep); font-size: clamp(1.65rem, 4vw, 2.4rem); line-height: 1.5; font-weight: 600; }
h3 { line-height: 1.55; }
.section > p { max-width: 46rem; }
.feature-grid { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(2,1fr); gap: .85rem; }
.feature-grid li { background: var(--white); border: 1px solid var(--line); padding: 1.25rem; min-height: 9rem; }
.feature-grid b, .feature-grid span { display: block; }
.feature-grid b { color: var(--maroon); }
.feature-grid span { color: var(--muted); font-size: .98rem; margin-top: .3rem; }
.number-list { list-style: none; padding: 0; margin: 1.8rem 0; display: grid; grid-template-columns: repeat(2,1fr); gap: 0 2rem; }
.number-list li { display: flex; gap: .9rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.number-list li > span { color: var(--gold); font-weight: 700; }
.number-list p { color: var(--muted); margin: .15rem 0 0; font-size: .95rem; }
.notice { padding: 1rem 1.25rem; background: #f1dfbd; border-left: 4px solid var(--gold); }
.two-col { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; margin-top: 1.8rem; }
.method-card { background: var(--white); border: 1px solid var(--line); padding: 1.8rem; box-shadow: var(--shadow); }
.method-card.dark { color: var(--ink); background: var(--white); border-color: var(--line); }
.method-card h3 { margin: .2rem 0 1rem; font-size: 1.4rem; }
.method-card p { font-size: .98rem; }
.card-kicker { color: var(--gold); font-size: .78rem !important; font-weight: 700; margin: 0; }
.practice-strip { margin-top: 1rem; display: grid; grid-template-columns: repeat(3,1fr); border: 1px solid var(--line); }
.practice-strip div { padding: 1rem; border-right: 1px solid var(--line); }
.practice-strip div:last-child { border: 0; }
.practice-strip b, .practice-strip span { display: block; }
.practice-strip b { color: var(--maroon); font-size: .9rem; }
.practice-strip span { color: var(--muted); font-size: .82rem; }
.focus-sequence { margin: 1.5rem 0; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); background: var(--white); box-shadow: var(--shadow); }
.focus-sequence span { position: relative; padding: 1rem 1.1rem; color: var(--maroon); border-right: 1px solid var(--line); text-align: center; }
.focus-sequence span:last-child { border-right: 0; }
.focus-sequence span:not(:last-child)::after { content: "›"; position: absolute; right: -.32rem; color: var(--gold); background: var(--white); line-height: 1; }
.full-point > p { font-size: 1.08rem; }
.full-point .nine-grid li { min-height: 7.5rem; }
.nine-grid { counter-reset: none; list-style: none; padding: 0; margin: 2rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; }
.nine-grid li { position: relative; min-height: 13rem; padding: 1.35rem; background: var(--white); border: 1px solid var(--line); overflow: hidden; }
.nine-grid i { display: block; color: var(--gold); font-style: normal; font-size: 1.45rem; }
.nine-grid b, .nine-grid span { display: block; position: relative; }
.nine-grid b { color: var(--maroon); margin: .25rem 0 .5rem; }
.nine-grid span { color: var(--muted); font-size: .87rem; line-height: 1.7; }
.remedy-table { margin-top: 2rem; border: 1px solid var(--line); }
.remedy-table > div { display: grid; grid-template-columns: minmax(12rem, .75fr) 1.25fr; gap: 1.5rem; padding: 1rem 1.25rem; border-bottom: 1px solid var(--line); }
.remedy-table > div:last-child { border: 0; }
.remedy-table b { color: var(--maroon); }
.remedy-table p { margin: 0; color: var(--muted); }
.remedy-head { color: #fff8e8; background: var(--maroon); font-size: .86rem; font-weight: 700; }
.compare { display: grid; grid-template-columns: repeat(2,1fr); gap: 1rem; margin-top: 2rem; }
.compare-card { padding: 1.6rem; border: 1px solid var(--line); background: var(--white); }
.compare-card h3 { margin: 0 0 .6rem; color: var(--maroon); }
.compare-card ul { margin: 0; padding-left: 1.3rem; }
.compare-card li { margin: .55rem 0; font-size: .92rem; }
.compare-card.warning { border-top: 5px solid #a84f3f; }
.compare-card.clear { border-top: 5px solid var(--gold); }
blockquote { margin: 2rem 0; padding: 2.2rem; background: var(--white); color: var(--ink); border-left: 6px solid var(--gold); box-shadow: var(--shadow); }
blockquote p { margin: 0; font-size: 1.32rem; line-height: 2; }
.principles { list-style: none; padding: 0; margin: 2rem 0; }
.principles li { display: grid; grid-template-columns: 2.5rem 1fr; gap: .8rem; padding: .8rem 0; border-bottom: 1px solid var(--line); }
.principles span { color: var(--gold); font-weight: 700; }
.principles p { margin: 0; }
.dedication { margin-top: 3rem; text-align: center; color: var(--maroon); font-size: 1.4rem; padding: 2rem; border-block: 1px solid var(--gold); }
footer { max-width: 1240px; margin: 0 auto; padding: 1.5rem 2rem 3rem; color: var(--muted); display: flex; justify-content: space-between; gap: 2rem; font-size: .85rem; }
footer p { margin: 0; max-width: 52rem; }
footer b { color: var(--maroon); }
footer a { color: var(--maroon); text-decoration: none; }
.login-dialog { width: min(92vw, 31rem); padding: 0; border: 1px solid var(--line); border-radius: .8rem; color: var(--ink); background: var(--paper); box-shadow: 0 30px 90px rgba(20,8,8,.35); }
.login-dialog::backdrop { background: rgba(27,14,15,.72); backdrop-filter: blur(5px); }
.login-dialog form { padding: 1.7rem; }
.dialog-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; }
.dialog-heading h2 { font-size: 1.55rem; }
.dialog-kicker { margin: 0; color: var(--gold); font: 700 .75rem/1.4 system-ui, sans-serif; letter-spacing: .08em; text-transform: uppercase; }
.dialog-description { color: var(--muted); font-size: .95rem; }
.login-dialog label { display: grid; gap: .3rem; margin: 1rem 0; color: var(--maroon); font-size: .84rem; font-weight: 700; }
.login-dialog input { width: 100%; padding: .78rem .85rem; border: 1px solid var(--line); border-radius: .4rem; color: var(--ink); background: var(--white); font: 1rem/1.4 system-ui, sans-serif; }
.login-dialog input:focus { outline: 3px solid rgba(189,141,56,.22); border-color: var(--gold); }
.icon-button { width: 2.2rem; height: 2.2rem; border: 0; border-radius: 50%; color: var(--maroon); background: var(--paper-deep); font: 1.4rem/1 system-ui, sans-serif; cursor: pointer; }
.primary-button { padding: .68rem 1rem; border: 0; border-radius: .42rem; color: #fff8e8; background: var(--maroon); font: 700 .88rem/1.4 system-ui, sans-serif; cursor: pointer; }
.primary-button:hover { background: var(--maroon-deep); }
.primary-button:disabled { opacity: .55; cursor: wait; }
.login-dialog .primary-button { width: 100%; }
.login-divider { display: flex; align-items: center; gap: .75rem; margin: 1rem 0; color: var(--muted); font: .76rem/1.4 system-ui, sans-serif; }
.login-divider::before, .login-divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.google-login-button { width: 100%; display: flex; align-items: center; justify-content: center; gap: .7rem; padding: .68rem 1rem; border: 1px solid rgba(32,33,36,.28); border-radius: .42rem; color: #2f3033; background: #fff; font: 600 .88rem/1.4 system-ui, sans-serif; cursor: pointer; }
.google-login-button:hover { background: #f8f9fa; border-color: rgba(32,33,36,.42); }
.google-login-button:focus-visible { outline: 3px solid rgba(66,133,244,.25); outline-offset: 2px; }
.google-login-button:disabled { opacity: .58; cursor: wait; }
.google-login-button svg { flex: 0 0 1.15rem; width: 1.15rem; height: 1.15rem; }
.form-error { min-height: 1.4rem; margin: .5rem 0; color: #a33a31; font: .83rem/1.5 system-ui, sans-serif; }
.editor-toolbar { position: fixed; left: 50%; bottom: 1rem; z-index: 30; width: min(94vw, 58rem); transform: translateX(-50%); padding: .8rem 1rem; border: 1px solid rgba(255,255,255,.16); border-radius: .75rem; color: #fff8e8; background: rgba(66,17,22,.97); box-shadow: 0 20px 60px rgba(20,8,8,.32); display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-family: system-ui, sans-serif; }
.editor-toolbar[hidden] { display: none; }
.editor-toolbar b, .editor-toolbar span { display: block; }
.editor-toolbar b { font-size: .88rem; }
.editor-toolbar span { color: #d9c6b7; font-size: .75rem; }
.toolbar-actions { display: flex; gap: .45rem; }
.toolbar-actions > button:not(.primary-button) { padding: .62rem .8rem; border: 1px solid rgba(255,255,255,.25); border-radius: .42rem; color: #fff8e8; background: transparent; font: .78rem/1.4 system-ui, sans-serif; cursor: pointer; }
.is-editing [data-content-path] { outline: 1px dashed rgba(189,141,56,.85); outline-offset: 4px; cursor: text; transition: background .15s ease; }
.is-editing [data-content-path]:hover, .is-editing [data-content-path]:focus { outline: 2px solid var(--gold); background: rgba(255,247,222,.9); color: var(--ink); }
.is-editing .method-card.dark [data-content-path]:hover, .is-editing .method-card.dark [data-content-path]:focus, .is-editing blockquote [data-content-path]:hover, .is-editing blockquote [data-content-path]:focus { background: rgba(255,247,222,.96); color: var(--ink); }
.site-toast { position: fixed; right: 1rem; bottom: 1rem; z-index: 40; max-width: min(88vw, 28rem); padding: .78rem 1rem; border-radius: .5rem; color: #fff; background: #2f2525; box-shadow: var(--shadow); font: .86rem/1.5 system-ui, sans-serif; }
.site-toast[hidden] { display: none; }
.site-toast.error { background: #8b2e28; }

@media (max-width: 900px) {
  .page-shell { grid-template-columns: 1fr; gap: 1.5rem; padding-top: 1.5rem; }
  .rail { position: sticky; top: 0; z-index: 10; margin: 0 -2rem; padding: .55rem 2rem; background: rgba(248,243,234,.96); border-top: 0; border-bottom: 1px solid var(--line); overflow-x: auto; }
  .rail-label { display: none; }
  .rail nav { display: flex; width: max-content; }
  .rail a { border-left: 0; border-bottom: 2px solid transparent; white-space: nowrap; }
  .rail a:hover, .rail a.active { transform: none; border-bottom-color: var(--maroon); }
  .intro { padding-top: 1.5rem; }
}
@media (max-width: 650px) {
  body { font-size: 1.05rem; }
  .masthead-inner, .page-shell { padding-left: 1.15rem; padding-right: 1.15rem; }
  .masthead p { display: none; }
  .masthead-inner { align-items: flex-start; }
  .header-actions { margin-left: auto; }
  .header-actions { flex-wrap: wrap; justify-content: flex-end; gap: .45rem; }
  .language-switcher { max-width: 14rem; overflow-x: auto; border-radius: .7rem; }
  .language-switcher button { min-width: 2.45rem; padding-inline: .45rem; }
  .rail { margin-inline: -1.15rem; padding-inline: 1.15rem; }
  .feature-grid, .number-list, .two-col, .nine-grid, .compare { grid-template-columns: 1fr; }
  .practice-strip, .focus-sequence { grid-template-columns: 1fr; }
  .practice-strip div { border-right: 0; border-bottom: 1px solid var(--line); }
  .focus-sequence span { border-right: 0; border-bottom: 1px solid var(--line); text-align: left; }
  .focus-sequence span:last-child { border-bottom: 0; }
  .focus-sequence span:not(:last-child)::after { right: 1rem; bottom: -.35rem; transform: rotate(90deg); }
  .remedy-table > div { grid-template-columns: 1fr; gap: .2rem; }
  .remedy-head { display: none !important; }
  .essence { grid-template-columns: 1fr; gap: .25rem; }
  .section { padding: 3.2rem 0; }
  footer { flex-direction: column; }
  .editor-toolbar { align-items: stretch; flex-direction: column; }
  .toolbar-actions { display: grid; grid-template-columns: repeat(3, 1fr); }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

/* Twelve-point reading edition */
:root {
  --ink: #1b2230;
  --muted: #667085;
  --paper: #f5f7fb;
  --paper-deep: #e9edf5;
  --maroon: #8b2635;
  --maroon-deep: #101a2f;
  --gold: #c89a42;
  --gold-soft: #f2dfb7;
  --line: rgba(30, 47, 78, .14);
  --white: #fff;
  --shadow: 0 22px 65px rgba(15, 27, 49, .1);
}

body {
  background:
    radial-gradient(circle at 88% 8%, rgba(200,154,66,.13), transparent 24rem),
    linear-gradient(90deg, rgba(30,47,78,.028) 1px, transparent 1px),
    var(--paper);
  background-size: auto, 4rem 4rem, auto;
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 18;
  color: #fff;
  background: rgba(16,26,47,.96);
  border-bottom-color: rgba(255,255,255,.12);
  backdrop-filter: blur(16px);
}
.masthead-inner { max-width: 1380px; padding-block: .8rem; }
.masthead p { color: #bdc6d6; font-size: .9rem; }
.auth-button { padding: .5rem .85rem; border-radius: 999px; color: #fff; }
.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  color: #f3d999;
  box-shadow: inset 0 0 0 4px rgba(200,154,66,.08);
}

.page-shell {
  max-width: 1380px;
  padding-top: 3rem;
  padding-bottom: 7rem;
  grid-template-columns: minmax(250px, 300px) minmax(0, 900px);
  gap: clamp(2rem, 5vw, 5.5rem);
}
.rail {
  top: 6.4rem;
  overflow: hidden;
  padding: 1.3rem;
  border: 0;
  border-radius: 1.2rem;
  color: #fff;
  background: var(--maroon-deep);
  box-shadow: var(--shadow);
}
.rail-label {
  margin: 0 0 1rem;
  padding: 0 .65rem .9rem;
  color: #f3d999;
  border-bottom: 1px solid rgba(255,255,255,.13);
  font-size: .82rem;
  letter-spacing: .04em;
}
.rail a {
  padding: .5rem .7rem;
  border-left-color: rgba(255,255,255,.13);
  color: #abb6ca;
  font-size: .88rem;
  line-height: 1.5;
}
.rail a:hover,
.rail a.active {
  color: #fff;
  border-left-color: var(--gold);
  background: rgba(255,255,255,.07);
}

.intro {
  position: relative;
  min-height: 33rem;
  padding: 3.2rem clamp(1.7rem, 5vw, 4.5rem);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 1.6rem;
  color: var(--ink);
  background: rgba(255,255,255,.92);
  box-shadow: 0 14px 45px rgba(15,27,49,.055);
}
.intro::after {
  content: "";
  position: absolute;
  width: 22rem;
  height: 22rem;
  right: -8rem;
  bottom: -10rem;
  border: 1px solid rgba(200,154,66,.16);
  border-radius: 50%;
  box-shadow: 0 0 0 3rem rgba(200,154,66,.025), 0 0 0 6rem rgba(200,154,66,.018);
}
.intro-index {
  position: absolute;
  top: 2.2rem;
  right: 2.4rem;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 7.5rem;
  aspect-ratio: 1;
  border: 1px solid rgba(200,154,66,.55);
  border-radius: 50%;
  color: var(--maroon);
  background: #fff9eb;
}
.intro-index strong { font-size: 2.5rem; line-height: 1; font-weight: 500; }
.intro-index span { margin-top: -.8rem; color: var(--muted); font-size: .72rem; }
.intro h1 { color: var(--maroon-deep); font-size: clamp(3.8rem, 9vw, 7.4rem); }
.intro .lead { position: relative; z-index: 1; max-width: 37rem; color: var(--ink); }
.intro .source-attribution {
  position: relative;
  z-index: 1;
  max-width: 38rem;
  border-left-color: var(--gold);
  background: #f8f9fc;
}
.intro .source-attribution span { color: var(--maroon); }
.intro .source-attribution p { color: var(--muted); }
.intro .essence {
  position: relative;
  z-index: 1;
  border-color: var(--line);
  border-radius: .8rem;
  background: #f8f9fc;
  box-shadow: none;
}
.intro .essence span { color: var(--maroon); }

.section {
  position: relative;
  margin: 1.2rem 0;
  padding: clamp(2rem, 5vw, 3.4rem);
  border: 1px solid var(--line);
  border-radius: 1.35rem;
  background: rgba(255,255,255,.92);
  box-shadow: 0 14px 45px rgba(15,27,49,.055);
}
.section::before {
  content: "";
  position: absolute;
  top: 1.7rem;
  bottom: 1.7rem;
  left: 0;
  width: 4px;
  border-radius: 0 4px 4px 0;
  background: linear-gradient(var(--gold), var(--maroon));
  opacity: .8;
}
.section-heading > span {
  flex-basis: 3.2rem;
  height: 3.2rem;
  border-radius: .85rem;
  background: var(--maroon-deep);
  box-shadow: inset 0 -3px 0 var(--gold);
}
.feature-grid li,
.nine-grid li,
.compare-card {
  border-radius: .8rem;
  background: #f8f9fc;
}
.notice { border-radius: .65rem; background: #fff6df; }
.method-card,
blockquote { border-radius: .9rem; }
.focus-sequence { border-radius: .85rem; overflow: hidden; background: #f8f9fc; box-shadow: none; }
.practice-image {
  max-width: 32rem;
  margin: 1.8rem auto 2rem;
  padding: .55rem;
  border: 1px solid rgba(200,154,66,.45);
  border-radius: 1rem;
  background: #f8f9fc;
  box-shadow: 0 18px 45px rgba(15,27,49,.14);
}
.practice-image img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: .65rem;
  cursor: zoom-in;
}
.practice-image img:focus-visible,
.image-zoom-trigger:focus-visible,
.lightbox-stage:focus-visible { outline: 3px solid var(--gold); outline-offset: 4px; }
.placeholder-figure { max-width: 32rem; }
.image-zoom-trigger {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  border-radius: .65rem;
  cursor: zoom-in;
}
.placeholder-image {
  aspect-ratio: 2 / 3;
  color: rgba(243,217,153,.85);
  background: #2d4b88;
  box-shadow: inset 0 0 0 1px rgba(243,217,153,.18);
}
.image-lightbox {
  position: fixed;
  inset: 0;
  width: auto;
  height: auto;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  background: rgba(7,13,26,.96);
  cursor: zoom-out;
}
.image-lightbox::backdrop { background: rgba(7,13,26,.96); }
.image-lightbox[open] { display: grid; place-items: center; }
.image-lightbox.is-opening { animation: lightbox-fade-in 1.1s ease-out both; }
.image-lightbox.is-opening::backdrop { animation: lightbox-backdrop-in 1.1s ease-out both; }
.image-lightbox.is-opening .lightbox-stage > img,
.image-lightbox.is-opening .lightbox-stage.is-placeholder::before { animation: lightbox-zoom-in 1.4s cubic-bezier(.2,.8,.2,1) both; }
.image-lightbox.is-closing { animation: lightbox-fade-out 1.1s ease-in both; }
.image-lightbox.is-closing::backdrop { animation: lightbox-backdrop-out 1.1s ease-in both; }
.image-lightbox.is-closing .lightbox-stage > img,
.image-lightbox.is-closing .lightbox-stage.is-placeholder::before { animation: lightbox-zoom-out 1.1s ease-in both; }
.lightbox-stage {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  color: rgba(243,217,153,.85);
  background: transparent;
  cursor: zoom-out;
}
.lightbox-stage img {
  display: block;
  max-width: 100vw;
  max-height: 100dvh;
  width: auto;
  height: 100dvh;
  object-fit: contain;
  border-radius: 0;
}
.lightbox-stage.is-placeholder::before {
  content: "";
  display: grid;
  place-items: center;
  height: 100dvh;
  max-width: 100vw;
  aspect-ratio: 2 / 3;
  border-radius: 0;
  background: #2d4b88;
  box-shadow: inset 0 0 0 1px rgba(243,217,153,.18);
}
@keyframes lightbox-fade-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes lightbox-fade-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes lightbox-backdrop-in { from { opacity: 0; } to { opacity: 1; } }
@keyframes lightbox-backdrop-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes lightbox-zoom-in { from { opacity: 0; transform: scale(.88); } to { opacity: 1; transform: scale(1); } }
@keyframes lightbox-zoom-out { from { opacity: 1; transform: scale(1); } to { opacity: 0; transform: scale(.88); } }

@media (prefers-reduced-motion: reduce) {
  .image-lightbox,
  .image-lightbox::backdrop,
  .lightbox-stage > img,
  .lightbox-stage.is-placeholder::before { animation-duration: .01ms !important; }
}
.final-section { border-color: var(--line); background: rgba(255,255,255,.92); }

@media (max-width: 900px) {
  .page-shell { grid-template-columns: 1fr; }
  .rail {
    top: 4.1rem;
    margin-inline: -2rem;
    padding: .55rem 2rem;
    border-radius: 0;
    background: rgba(16,26,47,.97);
    box-shadow: 0 12px 30px rgba(15,27,49,.12);
  }
  .rail a:hover,
  .rail a.active { border-bottom-color: var(--gold); }
}

@media (max-width: 650px) {
  .rail { margin-inline: -1.15rem; padding-inline: 1.15rem; }
  .intro { min-height: auto; padding: 2rem 1.35rem; border-radius: 1.1rem; }
  .intro-index { position: static; float: right; width: 5.5rem; margin: -.4rem 0 1rem 1rem; }
  .intro-index strong { font-size: 1.9rem; }
  .section { padding: 1.7rem 1.25rem; border-radius: 1rem; }
  .section-heading { align-items: flex-start; }
  .section-heading > span { flex-basis: 2.7rem; height: 2.7rem; }
}