/*
Theme Name: Physical Modeling and Simulation with Simscape
Theme URI: https://physical-modeling-simscape.lieb06.chatgpt.site
Author: Ivan Liebgott
Description: Fully editable Gutenberg block theme for the book Physical Modeling and Simulation with Simscape.
Version: 1.3.0
Requires at least: 6.4
Requires PHP: 7.4
Text Domain: physical-modeling-simscape
*/

:root {
  --graphite: #25292c;
  --graphite-soft: #34393c;
  --text-muted: #656b6e;
  --paper: #f4f2ed;
  --paper-light: #fbfaf7;
  --stone: #e9e5dc;
  --metal: #9a7a4b;
  --blue-grey: #64737b;
  --line: rgba(37, 41, 44, 0.16);
  --line-light: rgba(251, 250, 247, 0.18);
  --display: Baskerville, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Helvetica Neue", "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--graphite);
  font-family: var(--sans);
  font-feature-settings: "kern" 1, "liga" 1;
  margin: 0;
  -webkit-font-smoothing: antialiased;
}
.wp-site-blocks { margin: 0; padding: 0; }
.wp-site-blocks > *, .wp-block-post-content, .wp-block-post-content > *, .wp-block-group { margin-block-start: 0; margin-block-end: 0; }
.wp-block-post-content { max-width: none; }
.editor-styles-wrapper { background: var(--paper); color: var(--graphite); font-family: var(--sans); }
body.admin-bar .site-header { top: 32px; }
a { color: inherit; text-decoration: none; }
a:focus-visible { outline: 2px solid var(--blue-grey); outline-offset: 4px; }

.site-header {
  align-items: center;
  backdrop-filter: blur(18px) saturate(115%);
  background: rgba(251, 250, 247, 0.93);
  border-bottom: 1px solid var(--line);
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  grid-template-columns: 1fr auto 1fr;
  height: 82px;
  padding: 0 clamp(24px, 5vw, 80px);
  position: sticky;
  top: 0;
  z-index: 20;
}
.wordmark { align-items: center; display: flex; gap: 13px; justify-self: start; }
.wordmark-mark {
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  font-family: var(--display);
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  height: 36px;
  justify-content: center;
  position: relative;
  width: 36px;
}
.wordmark-mark::after { border: 1px solid rgba(154, 122, 75, 0.34); content: ""; inset: 3px; position: absolute; }
.wordmark-copy { display: flex; flex-direction: column; gap: 3px; }
.wordmark-copy strong, .wordmark-title { font-size: 10px; font-weight: 700; letter-spacing: 0.18em; margin: 0; text-transform: uppercase; }
.wordmark-copy small, .wordmark-author { color: var(--text-muted); font-size: 9px; letter-spacing: 0.12em; margin: 0; text-transform: uppercase; }
.site-header nav, .site-header .wp-block-navigation__container { display: flex; gap: clamp(20px, 2.5vw, 40px); }
.site-header nav a, .header-cta {
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}
.site-header nav a::after {
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}
.site-header nav a:hover::after, .site-header nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.header-cta { border-bottom: 1px solid var(--metal); color: #705d3e; justify-self: end; padding-bottom: 6px; }

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}
.hero::before {
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.eyebrow, .section-label {
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}
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.button {
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.book-cover {
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}
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}
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}
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  padding: clamp(42px, 4.4vw, 72px);
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}
.convergence-diagram::before {
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}
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.knowledge-domain {
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}
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  padding-top: 30px;
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}

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}
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.section-heading.horizontal h2, .section-heading.horizontal > p:last-child { margin: 0; }

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.transformation {
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}
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}
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}
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}
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}
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}
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}
.outcome-index { display: flex; flex-direction: column; gap: 16px; }
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  margin: 0 0 32px;
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}
.outcome-copy p { color: var(--text-muted); font-size: 14px; line-height: 1.85; margin: 0; }

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.modeler-questions .section-label { color: #c0a16f; }
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.transformation-close {
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  border-bottom: 1px solid var(--metal);
  display: grid;
  gap: clamp(40px, 8vw, 130px);
  grid-template-columns: 1.2fr 0.8fr;
  margin-top: clamp(80px, 9vw, 130px);
  padding-bottom: 34px;
}
.transformation-close p { color: var(--text-muted); font-size: 16px; line-height: 1.85; margin: 0; max-width: 830px; }
.transformation-close strong { font-family: var(--display); font-size: clamp(25px, 2.7vw, 40px); font-weight: 400; line-height: 1.15; }
.transformation-close h3 { font-family: var(--display); font-size: clamp(25px, 2.7vw, 40px); font-weight: 400; line-height: 1.15; margin: 0; }

.method { background: var(--paper); }
.method-label { margin: 0 auto 30px; max-width: 1680px; }
.workflow-visual {
  background: var(--paper-light);
  border: 1px solid var(--line);
  margin: 0 auto;
  max-width: 1680px;
  overflow: hidden;
}
.workflow-visual img { display: block; height: auto; width: 100%; }
.workflow { border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(4, 1fr); margin-top: clamp(70px, 8vw, 112px); }
.workflow-step { border-right: 1px solid var(--line); min-height: 310px; padding: 28px 28px 42px; position: relative; }
.workflow-step:first-child { padding-left: 0; }
.workflow-step:last-child { border-right: 0; }
.workflow-index { color: var(--metal); font-family: "Courier New", monospace; font-size: 10px; }
.workflow h3 { font-size: 31px; margin-top: 78px; }
.workflow-arrow { align-items: center; background: var(--paper); border: 1px solid var(--metal); color: var(--metal); display: flex; font-size: 17px; height: 36px; justify-content: center; position: absolute; right: -18px; top: 22px; width: 36px; z-index: 2; }

.structure { background: var(--graphite); color: var(--paper-light); display: grid; gap: clamp(70px, 10vw, 160px); grid-template-columns: 0.9fr 1.1fr; padding: clamp(96px, 11vw, 166px) clamp(24px, 7vw, 112px); }
.structure .section-label { color: #c0a16f; }
.structure h2 { margin-top: 34px; }
.structure-intro > p:last-child { color: rgba(251, 250, 247, 0.62); }
.reasoning-chain { border-top: 1px solid var(--line-light); counter-reset: reasoning; list-style: none; margin: 0; padding: 0; }
.reasoning-chain li { align-items: center; border-bottom: 1px solid var(--line-light); display: grid; gap: 20px; grid-template-columns: 40px 1fr 24px; min-height: 72px; }
.reasoning-chain li::before { color: #c0a16f; content: counter(reasoning, decimal-leading-zero); counter-increment: reasoning; font-family: "Courier New", monospace; font-size: 10px; }
.reasoning-chain li::after { color: rgba(251, 250, 247, 0.38); content: "↓"; }
.reasoning-chain li:last-child::after { content: ""; }
.reasoning-chain li { font-family: var(--display); font-size: clamp(20px, 2vw, 29px); font-weight: 400; }
.reasoning-chain li > span:first-child { color: #c0a16f; font-family: "Courier New", monospace; font-size: 10px; }
.reasoning-chain strong { font-family: var(--display); font-size: clamp(20px, 2vw, 29px); font-weight: 400; }
.reasoning-chain li > span:last-child { color: rgba(251, 250, 247, 0.38); }

.topics { background: var(--paper-light); }
.topic-list {
  border-top: 1px solid var(--line);
  display: grid;
  grid-auto-flow: column;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: repeat(7, minmax(68px, auto));
  margin-top: clamp(72px, 9vw, 124px);
}
.topic-list div { align-items: center; border-bottom: 1px solid var(--line); display: grid; gap: 22px; grid-template-columns: 36px 1fr; min-height: 68px; }
.topic-list div:nth-child(-n + 7) { border-right: 1px solid var(--line); padding-right: 32px; }
.topic-list div:nth-child(n + 8) { padding-left: 32px; }
.topic-list span { color: var(--metal); font-family: "Courier New", monospace; font-size: 9px; }
.topic-list p { font-family: var(--display); font-size: clamp(18px, 1.65vw, 25px); margin: 0; }
.topic-list { counter-reset: topic; list-style: none; padding: 0; }
.topic-list li { align-items: center; border-bottom: 1px solid var(--line); display: grid; font-family: var(--display); font-size: clamp(18px, 1.65vw, 25px); gap: 22px; grid-template-columns: 36px 1fr; min-height: 68px; }
.topic-list li::before { color: var(--metal); content: counter(topic, decimal-leading-zero); counter-increment: topic; font-family: "Courier New", monospace; font-size: 9px; }
.topic-list li:nth-child(-n + 7) { border-right: 1px solid var(--line); padding-right: 32px; }
.topic-list li:nth-child(n + 8) { padding-left: 32px; }

.inside { background: var(--stone); }
.inside-editorial { border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); margin-top: clamp(68px, 8vw, 112px); }
.inside-editorial article { border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); min-height: 310px; padding: 32px 36px 44px 0; }
.inside-editorial article:not(:first-child) { padding-left: 36px; }
.inside-editorial article:last-child { border-right: 0; }
.inside-editorial h3 { margin-top: 80px; }

.resources { background: var(--paper-light); display: grid; gap: clamp(70px, 10vw, 160px); grid-template-columns: 0.9fr 1.1fr; }
.resource-list { border-top: 1px solid var(--line); display: grid; grid-template-columns: 1fr 1fr; }
.resource-list span { border-bottom: 1px solid var(--line); color: var(--graphite); font-family: var(--display); font-size: 21px; min-height: 78px; padding: 26px 18px 20px 0; }
.resource-list span:nth-child(even) { border-left: 1px solid var(--line); padding-left: 28px; }
.resource-list > p { border-bottom: 1px solid var(--line); color: var(--graphite); font-family: var(--display); font-size: 21px; margin: 0; min-height: 78px; padding: 26px 18px 20px 0; }
.resource-list > p:nth-child(even) { border-left: 1px solid var(--line); padding-left: 28px; }

.review-band { align-items: center; background: #d9dedf; border-bottom: 1px solid var(--line); border-top: 1px solid var(--line); display: grid; gap: clamp(60px, 10vw, 150px); grid-template-columns: 1.05fr 0.95fr; padding: clamp(70px, 8vw, 116px) clamp(24px, 7vw, 112px); }
.review-band h2 { font-size: clamp(36px, 4.3vw, 62px); margin-bottom: 0; }
.review-band > p { border-left: 1px solid var(--blue-grey); color: #566166; font-size: 15px; line-height: 1.8; margin: 0; padding-left: 28px; }

.conclusion { background: var(--paper); display: grid; gap: clamp(70px, 11vw, 180px); grid-template-columns: 0.78fr 1.22fr; }
.conclusion h2 { font-size: clamp(48px, 5.8vw, 84px); line-height: 0.98; margin-bottom: 0; }
.conclusion-copy { max-width: 860px; }
.conclusion-lead { color: var(--graphite); font-family: var(--display); font-size: clamp(25px, 2.7vw, 40px); line-height: 1.35; margin: 0; }
.conclusion-columns { border-top: 1px solid var(--line); display: grid; gap: clamp(34px, 6vw, 82px); grid-template-columns: 1fr 1fr; margin-top: 44px; padding-top: 26px; }
.conclusion-columns p { color: var(--text-muted); font-size: 13px; line-height: 1.85; margin: 0; }
.conclusion-close { border-left: 2px solid var(--metal); display: flex; flex-direction: column; gap: 8px; margin-top: 52px; padding-left: 22px; }
.conclusion-close span { color: var(--text-muted); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; }
.conclusion-close strong { color: #705d3e; font-family: var(--display); font-size: clamp(26px, 2.8vw, 40px); font-weight: 400; }
.conclusion-close h3 { color: #705d3e; font-family: var(--display); font-size: clamp(26px, 2.8vw, 40px); font-weight: 400; margin: 0; }
.conclusion-close p { color: var(--text-muted); font-size: 9px; letter-spacing: 0.12em; margin: 0; text-transform: uppercase; }

.audience { background: var(--paper); }
.audience-visual { background: var(--paper-light); border: 1px solid var(--line); margin: clamp(64px, 8vw, 110px) auto 0; max-width: 1680px; overflow: hidden; }
.audience-visual img { display: block; height: auto; width: 100%; }
.audience-note { border-left: 2px solid var(--metal); color: var(--text-muted); font-size: 14px; line-height: 1.8; margin: 54px 0 0 auto; max-width: 760px; padding-left: 24px; }

.author { background: var(--paper-light); display: grid; gap: clamp(70px, 11vw, 180px); grid-template-columns: 0.85fr 1.15fr; }
.author h2 { margin-bottom: 0; }
.author-copy { max-width: 760px; }
.author-copy > p { color: var(--text-muted); font-size: 15px; line-height: 1.85; }
.author-copy .author-lead { color: var(--graphite); font-family: var(--display); font-size: clamp(27px, 2.7vw, 40px); line-height: 1.24; margin-top: 0; }
.author-facts { border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 44px; }
.author-facts div { border-right: 1px solid var(--line); display: flex; flex-direction: column; gap: 9px; padding: 24px 20px 0 0; }
.author-facts div:not(:first-child) { padding-left: 20px; }
.author-facts div:last-child { border-right: 0; }
.author-facts strong { color: var(--metal); font-family: var(--display); font-size: 38px; font-weight: 400; }
.author-facts span { font-size: 9px; letter-spacing: 0.08em; line-height: 1.5; text-transform: uppercase; }
.author-facts h3 { color: var(--metal); font-family: var(--display); font-size: 38px; font-weight: 400; margin: 0; }
.author-facts p { font-size: 9px; letter-spacing: 0.08em; line-height: 1.5; margin: 0; text-transform: uppercase; }

.release { background: var(--graphite-soft); color: var(--paper-light); padding: clamp(100px, 13vw, 190px) clamp(24px, 10vw, 160px); }
.release .section-label { color: #c0a16f; }
.release h2 { font-size: clamp(52px, 7.2vw, 108px); max-width: 1100px; }
.release > p:not(.section-label) { color: rgba(251, 250, 247, 0.62); font-size: 16px; line-height: 1.75; max-width: 680px; }
.button-release { background: var(--paper-light); border-color: var(--paper-light); color: var(--graphite); margin-top: 34px; min-width: 270px; }
.button-release:hover, .button-release:focus-visible { background: #c0a16f; border-color: #c0a16f; }

footer { align-items: end; background: #202426; border-top: 1px solid var(--line-light); color: var(--paper-light); display: flex; gap: 40px; justify-content: space-between; padding: 38px clamp(24px, 5vw, 80px); }
footer div { display: flex; flex-direction: column; gap: 7px; }
footer strong { font-family: var(--display); font-size: 17px; font-weight: 400; }
footer span { color: #a7b0b4; font-size: 8px; letter-spacing: 0.16em; text-transform: uppercase; }
footer p { color: rgba(251, 250, 247, 0.42); font-size: 9px; line-height: 1.6; margin: 0; max-width: 500px; text-align: right; }
.site-footer > div { display: flex; flex-direction: column; gap: 7px; }
.footer-title { font-family: var(--display); font-size: 17px; font-weight: 400; margin: 0; }
.footer-subtitle { color: #a7b0b4; font-size: 8px; letter-spacing: 0.16em; margin: 0; text-transform: uppercase; }
.footer-disclaimer { color: rgba(251, 250, 247, 0.42); font-size: 9px; line-height: 1.6; margin: 0; max-width: 500px; text-align: right; }

@media (max-width: 1080px) {
  .site-header { grid-template-columns: 1fr auto; }
  .site-header nav { display: none; }
  .hero { grid-template-columns: 1fr 0.82fr; }
  .hero h1 { font-size: clamp(55px, 7vw, 78px); }
  .cover-stage { width: min(34vw, 440px); }
  .foundation-heading { grid-template-columns: 0.45fr 1.55fr; }
  .foundation-heading > p:last-child { grid-column: 2; }
  .convergence-diagram { grid-template-columns: minmax(240px, 1.08fr) 70px minmax(190px, 0.76fr) 58px minmax(210px, 0.86fr); padding: 36px; }
  .knowledge-domain { gap: 12px; grid-template-columns: 28px 1fr; padding-right: 16px; }
  .knowledge-domain h3 { font-size: 20px; }
  .knowledge-domain p { font-size: 8px; }
  .modeling-core { padding: 20px; }
  .modeling-core p { letter-spacing: 0.08em; }
  .convergence-book { gap: 22px; }
  .section-heading.horizontal { grid-template-columns: 1fr; }
  .section-heading.horizontal h2 { margin-top: 10px; }
  .transformation-intro { grid-template-columns: 0.48fr 1.52fr; }
  .transformation-lead { grid-column: 2; }
  .perspective-shift { grid-column: 2; }
}

@media (max-width: 782px) {
  body.admin-bar .site-header { top: 46px; }
}

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; padding-bottom: 214px; }
  .hero-copy { padding-right: 0; }
  .cover-stage { margin-top: 70px; width: min(66vw, 480px); }
  .hero-specs { grid-template-columns: 1fr; }
  .hero-specs div { min-height: auto; padding: 14px 24px; }
  .hero-specs > p { min-height: auto; padding: 14px 24px; }
  .hero-specs div:nth-child(2) { display: none; }
  .foundation-heading { grid-template-columns: 1fr; }
  .foundation-heading > p:last-child { grid-column: auto; }
  .convergence-diagram { grid-template-columns: 1fr; min-height: 0; padding: clamp(30px, 7vw, 54px); }
  .knowledge-stack { grid-template-rows: none; min-height: 0; }
  .knowledge-domain { min-height: 92px; padding-right: 0; }
  .merge-lines { height: 74px; }
  .merge-lines svg { display: none; }
  .merge-lines::before { background: var(--metal); content: ""; height: 52px; left: 50%; position: absolute; top: 0; width: 1px; }
  .merge-lines::after { bottom: 4px; color: var(--metal); content: "↓"; font-family: var(--display); font-size: 24px; left: 50%; position: absolute; transform: translateX(-50%); }
  .modeling-core { margin: 0 auto; width: min(58vw, 300px); }
  .book-arrow { height: 78px; }
  .book-arrow::before { bottom: 20px; height: auto; left: 50%; right: auto; top: 0; width: 1px; }
  .book-arrow span { bottom: 0; padding: 0 0 0 7px; right: 50%; transform: translateX(50%) rotate(90deg); }
  .convergence-book { grid-template-columns: 180px minmax(180px, 1fr); margin: 0 auto; max-width: 560px; }
  .problem, .structure, .resources, .review-band, .conclusion, .author, .principle-band { grid-template-columns: 1fr; }
  .transformation-intro, .modeler-questions, .transformation-close { grid-template-columns: 1fr; }
  .transformation-lead, .perspective-shift { grid-column: auto; }
  .learning-outcomes article { grid-template-columns: 0.28fr 1.72fr; }
  .outcome-copy { grid-template-columns: 1fr; }
  .outcome-copy p + p { margin-top: 18px; }
  .distinction-grid, .inside-editorial { grid-template-columns: 1fr 1fr; }
  .distinction-grid article:nth-child(n), .inside-editorial article:nth-child(n) { border-right: 1px solid var(--line); padding-left: 24px; }
  .distinction-grid article:nth-child(odd), .inside-editorial article:nth-child(odd) { padding-left: 0; }
  .workflow { grid-template-columns: 1fr 1fr; }
  .workflow-step:nth-child(2) { border-right: 0; }
  .workflow-step:first-child { padding-left: 28px; }
  .workflow-arrow { display: none; }
}

@media (max-width: 600px) {
  .site-header { height: 70px; padding: 0 20px; }
  .wordmark-copy { display: none; }
  .header-cta { font-size: 9px; }
  .hero { min-height: auto; padding: 72px 20px 194px; }
  .hero::before { left: 20px; right: 20px; top: 18px; }
  .hero h1 { font-size: clamp(45px, 13.5vw, 66px); }
  .hero-subtitle { font-size: 10px; line-height: 1.6; }
  .button { width: 100%; }
  .button-primary { min-width: 0; }
  .cover-stage { width: min(86vw, 390px); }
  .cover-rail { left: -16px; right: -16px; }
  .foundation { padding-left: 20px; padding-right: 20px; }
  .foundation-heading h2 { font-size: clamp(41px, 12vw, 58px); }
  .convergence-diagram { padding: 28px 20px; }
  .knowledge-domain { gap: 10px; grid-template-columns: 25px 1fr; }
  .knowledge-domain h3 { font-size: 20px; }
  .knowledge-domain p { letter-spacing: 0.04em; }
  .modeling-core { width: min(74vw, 280px); }
  .convergence-book { grid-template-columns: 1fr; text-align: center; }
  .convergence-cover { margin: 0 auto; width: min(48vw, 180px); }
  .foundation-close { text-align: left; }
  .section-shell, .principle-band, .structure, .review-band { padding-left: 20px; padding-right: 20px; }
  .section-heading h2, .structure h2, .resource-intro h2, .review-band h2, .conclusion h2, .author h2 { font-size: clamp(38px, 11vw, 54px); }
  .conclusion-columns { grid-template-columns: 1fr; }
  .transformation-intro h2 { font-size: clamp(42px, 12vw, 60px); }
  .principle-band blockquote { font-size: clamp(40px, 12vw, 58px); }
  .learning-outcomes article { gap: 28px; grid-template-columns: 1fr; }
  .outcome-index { align-items: center; flex-direction: row; }
  .modeler-questions { padding-left: 20px; padding-right: 20px; }
  .distinction-grid, .workflow, .topic-list, .inside-editorial, .resource-list { grid-template-columns: 1fr; }
  .topic-list { grid-auto-flow: row; grid-template-rows: none; }
  .topic-list li:nth-child(n) { border-left: 0; border-right: 0; padding-left: 0; padding-right: 0; }
  .distinction-grid article:nth-child(n), .workflow-step:nth-child(n), .topic-list div:nth-child(n), .inside-editorial article:nth-child(n), .resource-list span:nth-child(n), .resource-list > p:nth-child(n) { border-left: 0; border-right: 0; padding-left: 0; padding-right: 0; }
  .workflow-step:first-child { padding-left: 0; }
  .topic-list div:nth-child(even) { padding-left: 0; }
  .author-facts { grid-template-columns: 1fr; }
  .author-facts div, .author-facts div:not(:first-child) { border-bottom: 1px solid var(--line); border-right: 0; padding: 18px 0; }
  .release { padding-left: 20px; padding-right: 20px; }
  .release h2 { font-size: clamp(50px, 13vw, 72px); }
  footer { align-items: start; flex-direction: column; padding-left: 20px; padding-right: 20px; }
  footer p { text-align: left; }
  .footer-disclaimer { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; }
}