/* Standalone portfolio deck: light, evidence-led, and independent from the site theme. */
:root {
  color-scheme: light;
  --page: #f6f8fc;
  --surface: #ffffff;
  --surface-blue: #edf7fb;
  --surface-navy: #e9eef7;
  --ink: #17223b;
  --muted: #596579;
  --navy: #2d4b85;
  --blue: #2a6f9f;
  --cyan: #75cbd8;
  --line: #d8dee9;
  --line-strong: #aebbd0;
  --focus: #b33b00;
  --topbar-height: 3.35rem;
  --control-height: 3.65rem;
  --radius: 3px;
  font-family: Inter, Arial, "Noto Sans TC", "Microsoft JhengHei", sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--page); }
body {
  margin: 0;
  min-width: 280px;
  min-height: 100vh;
  min-height: 100dvh;
  overflow-x: hidden;
  background: var(--page);
  color: var(--ink);
}
button, a, summary { font: inherit; }
a, button { color: inherit; }
svg { width: 1.15rem; height: 1.15rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
img { display: block; max-width: 100%; }
p { text-wrap: pretty; }

.sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.skip-link {
  position: fixed;
  z-index: 100;
  top: .4rem;
  left: .4rem;
  padding: .55rem .75rem;
  background: var(--ink);
  color: #fff;
  font-weight: 800;
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.deck {
  display: grid;
  height: 100vh;
  height: 100dvh;
  grid-template-rows: var(--topbar-height) 3px minmax(0, 1fr) var(--control-height);
  overflow: hidden;
}
.deck-topbar,
.deck-controls {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: .9rem;
  padding-right: max(1.1rem, env(safe-area-inset-right));
  padding-left: max(1.1rem, env(safe-area-inset-left));
  background: rgba(255,255,255,.97);
}
.deck-topbar { border-bottom: 1px solid var(--line); }
.deck-controls { justify-content: center; border-top: 1px solid var(--line); padding-bottom: env(safe-area-inset-bottom); }
.deck-home, .deck-language, .article-link, .contact-list a { text-decoration: none; }
.deck-home { display: inline-flex; align-items: center; gap: .3rem; color: var(--muted); white-space: nowrap; }
.deck-home:hover { color: var(--navy); }
.deck-brand { display: flex; min-width: 0; flex: 1; align-items: baseline; justify-content: center; gap: .7rem; margin: 0; text-align: center; }
.deck-brand strong { color: var(--ink); white-space: nowrap; }
.deck-brand span { overflow: hidden; color: var(--muted); font-size: .7rem; letter-spacing: .06em; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.deck-utilities { display: flex; align-items: center; gap: .45rem; }
.deck-language { padding: .4rem .62rem; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--navy); font-size: .8rem; font-weight: 700; white-space: nowrap; }
.deck-language:hover, .icon-button:hover { border-color: var(--blue); background: var(--surface-blue); }
.icon-button, .control-button, .overview-select { border: 0; background: transparent; cursor: pointer; }
.icon-button { display: inline-grid; width: 2.2rem; height: 2.2rem; place-items: center; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--navy); }
.exit-fullscreen-icon { display: none; }
:fullscreen .enter-fullscreen-icon { display: none; }
:fullscreen .exit-fullscreen-icon { display: block; }
.deck-progress { z-index: 21; overflow: hidden; background: #e6eaf1; }
.deck-progress span { display: block; width: 0; height: 100%; background: var(--blue); transform-origin: left center; transition: width 180ms ease; }

.deck-stage { position: relative; min-width: 0; min-height: 0; overflow: auto; overscroll-behavior: contain; touch-action: pan-y pinch-zoom; }
.deck-slide {
  position: relative;
  width: 100%;
  min-height: 100%;
  padding: clamp(1rem, 2.25vw, 2rem) max(clamp(1rem, 3.7vw, 3.5rem), env(safe-area-inset-right)) clamp(.8rem, 1.8vw, 1.6rem) max(clamp(1rem, 3.7vw, 3.5rem), env(safe-area-inset-left));
  border-left: 5px solid var(--blue);
}
.js .deck-slide { display: none; }
.js .deck-slide.is-active { display: block; animation: slide-in 180ms ease both; }
.slide-content {
  display: grid;
  width: min(100%, 88rem);
  min-height: calc(100vh - var(--topbar-height) - var(--control-height) - 3px - clamp(1.8rem, 4vw, 3.6rem));
  min-height: calc(100dvh - var(--topbar-height) - var(--control-height) - 3px - clamp(1.8rem, 4vw, 3.6rem));
  margin: 0 auto;
  grid-template-columns: minmax(0, 1.25fr) minmax(15rem, .75fr);
  align-items: center;
  gap: clamp(1.25rem, 3vw, 3rem);
}
.slide-copy { min-width: 0; }
.slide-kicker { margin: 0 0 .45rem; color: var(--blue); font-size: clamp(.65rem, .8vw, .78rem); font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.deck-slide h2 { max-width: 27ch; margin: 0; color: var(--ink); font-size: clamp(1.7rem, 3vw, 2.9rem); line-height: 1.08; letter-spacing: -.025em; text-wrap: balance; }
.slide-summary { max-width: 72ch; margin: .65rem 0 0; color: var(--muted); font-size: clamp(.88rem, 1.15vw, 1.08rem); line-height: 1.5; }
.slide-number { position: absolute; top: .75rem; right: max(1rem, env(safe-area-inset-right)); color: var(--navy); font-size: .66rem; font-weight: 800; letter-spacing: .1em; }
.slide-visual { display: grid; min-width: 0; max-height: 56vh; margin: 0; place-items: center; overflow: hidden; border: 1px solid var(--line-strong); border-radius: var(--radius); background: #fff; }
.slide-visual::after { content: "EVIDENCE / ARTIFACT"; justify-self: stretch; padding: .28rem .45rem; border-top: 1px solid var(--line); color: var(--muted); background: #f8fafc; font-size: .58rem; font-weight: 800; letter-spacing: .08em; }
.slide-visual img { width: 100%; max-height: calc(56vh - 1.4rem); object-fit: contain; }

/* Executive summary */
.slide-hero .slide-content { grid-template-columns: minmax(0, 1fr) minmax(14rem, 22rem); }
.slide-hero h2 { max-width: 19ch; font-size: clamp(2.1rem, 4.2vw, 4.2rem); }
.slide-hero .slide-summary { max-width: 58ch; font-size: clamp(1rem, 1.4vw, 1.28rem); }
.slide-hero .slide-visual { width: min(100%, 20rem); max-height: 50vh; justify-self: center; }
.slide-hero .slide-visual img { aspect-ratio: 4 / 5; object-fit: cover; object-position: center top; }
.slide-hero .slide-visual::after { content: "SIRI CHIU"; }
.capability-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin-top: 1.25rem; border-top: 2px solid var(--navy); border-bottom: 1px solid var(--line); }
.capability-list div { min-width: 0; padding: .7rem .8rem .75rem 0; }
.capability-list div + div { padding-left: .8rem; border-left: 1px solid var(--line); }
.capability-list strong, .capability-list span { display: block; }
.capability-list strong { color: var(--navy); font-size: .84rem; }
.capability-list span { margin-top: .28rem; color: var(--muted); font-size: clamp(.72rem, .8vw, .82rem); line-height: 1.4; }
.role-line { display: inline-block; margin: 1rem 0 0; padding: .5rem .7rem; border-left: 4px solid var(--cyan); background: var(--surface-blue); color: var(--ink); font-size: .85rem; font-weight: 750; }

/* Career timeline */
.slide-timeline .slide-content, .slide-method .slide-content, .slide-index .slide-content, .slide-skills .slide-content, .slide-disclosure .slide-content, .slide-gallery .slide-content { display: block; width: min(100%, 82rem); padding-top: clamp(.5rem, 2vh, 1.3rem); }
.slide-timeline h2, .slide-method h2, .slide-index h2, .slide-skills h2, .slide-disclosure h2, .slide-gallery h2 { max-width: 30ch; font-size: clamp(1.8rem, 3.2vw, 3.2rem); }
.career-timeline { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 1.35rem 0 0; padding: 0; border-top: 3px solid var(--navy); list-style: none; }
.career-timeline li { position: relative; display: grid; grid-template-rows: auto 1fr; min-width: 0; padding: .75rem 1rem 0 0; }
.career-timeline li + li { padding-left: 1rem; border-left: 1px solid var(--line); }
.career-timeline li::before { position: absolute; top: -.43rem; left: 0; width: .7rem; height: .7rem; border: 2px solid #fff; background: var(--cyan); content: ""; }
.career-timeline time { color: var(--blue); font-size: .75rem; font-weight: 800; }
.career-timeline strong, .career-timeline span { display: block; }
.career-timeline strong { margin-top: .45rem; color: var(--ink); font-size: 1.2rem; }
.career-timeline span { margin-top: .1rem; color: var(--navy); font-size: .84rem; font-weight: 750; }
.career-timeline p { margin: .55rem 0 0; color: var(--muted); font-size: clamp(.76rem, .9vw, .9rem); line-height: 1.52; }
.slide-note { margin: 1rem 0 0; padding: .55rem .75rem; border-left: 3px solid var(--cyan); background: var(--surface-blue); color: var(--muted); font-size: .78rem; line-height: 1.45; }

/* Engineering method */
.method-flow { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; margin: 1.35rem 0 0; padding: 0; background: var(--line-strong); border: 1px solid var(--line-strong); list-style: none; }
.method-flow li { min-width: 0; min-height: 9rem; padding: 1rem; background: #fff; }
.method-flow li:nth-child(3) { background: var(--surface-blue); }
.method-flow li > span { display: block; color: var(--blue); font-size: .68rem; font-weight: 900; }
.method-flow strong { display: block; margin-top: .65rem; color: var(--navy); font-size: clamp(1rem, 1.5vw, 1.35rem); }
.method-flow p { margin: .55rem 0 0; color: var(--muted); font-size: clamp(.75rem, .85vw, .86rem); line-height: 1.45; }
.main-line, .support-line { margin: .8rem 0 0; padding: .55rem .75rem; font-size: clamp(.75rem, .88vw, .88rem); line-height: 1.42; }
.main-line { border-left: 4px solid var(--navy); background: var(--surface-navy); color: var(--ink); font-weight: 750; }
.support-line { margin-top: .4rem; border-left: 4px solid var(--cyan); background: var(--surface-blue); color: var(--muted); }

/* STAR+ cases: content carries more visual weight than the evidence link. */
.slide-case { font-size: clamp(.72rem, .83vw, .86rem); }
.slide-case .slide-content { grid-template-columns: minmax(0, 2.1fr) minmax(15rem, .9fr); align-items: center; gap: clamp(1rem, 2vw, 2rem); }
.slide-case h2 { max-width: 32ch; font-size: clamp(1.7rem, 2.35vw, 2.5rem); }
.case-context, .case-outcome { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: .65rem; border: 1px solid var(--line); background: var(--line); }
.case-field { min-width: 0; padding: .48rem .6rem; background: #fff; }
.case-field h3, .decision-region > h3 { margin: 0 0 .24rem; color: var(--blue); font-size: .63rem; letter-spacing: .07em; text-transform: uppercase; }
.case-field p { margin: 0; color: var(--muted); font-size: clamp(.78rem, .9vw, .88rem); line-height: 1.38; }
.architecture-strip { display: flex; align-items: stretch; margin: .52rem 0 0; padding: 0; border: 1px solid var(--line-strong); list-style: none; }
.architecture-strip li { position: relative; display: grid; min-width: 0; flex: 1; padding: .38rem .56rem; place-items: center; background: var(--surface-blue); color: var(--navy); font-size: clamp(.58rem, .65vw, .7rem); font-weight: 800; line-height: 1.22; text-align: center; }
.architecture-strip li + li { border-left: 1px solid var(--line-strong); }
.architecture-strip li + li::before { position: absolute; left: -.28rem; width: .46rem; height: .46rem; border-top: 1px solid var(--navy); border-right: 1px solid var(--navy); background: var(--surface-blue); content: ""; transform: rotate(45deg); }
.decision-region { margin-top: .55rem; }
.decision-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin: 0; padding: 1px; background: var(--line-strong); list-style: none; counter-reset: decision; }
.decision-list li { min-width: 0; min-height: 6.25rem; padding: .58rem .62rem; background: #fff; counter-increment: decision; }
.decision-list li::before { display: inline-grid; width: 1.25rem; height: 1.25rem; margin-right: .35rem; place-items: center; background: var(--navy); color: #fff; content: counter(decision); font-size: .65rem; font-weight: 800; vertical-align: middle; }
.decision-list strong { color: var(--ink); font-size: clamp(.76rem, .85vw, .84rem); vertical-align: middle; }
.decision-list p { margin: .4rem 0 0; color: var(--muted); font-size: clamp(.74rem, .82vw, .82rem); line-height: 1.36; }
.case-outcome { margin-top: .52rem; }
.result-field { border-top: 2px solid var(--navy); }
.validation-field { border-top: 2px solid var(--cyan); }
.boundary-line { margin: .42rem 0 0; padding-left: .55rem; border-left: 2px solid var(--line-strong); color: var(--muted); font-size: clamp(.69rem, .74vw, .76rem); line-height: 1.35; }
.boundary-line strong { color: var(--navy); }
.slide-case .slide-visual { max-height: 44vh; }
.slide-case .slide-visual img { max-height: calc(44vh - 1.35rem); }
.article-link { display: inline-flex; align-items: center; gap: .35rem; margin-top: .42rem; padding-bottom: .08rem; border-bottom: 1px solid var(--line-strong); color: var(--blue); font-size: .67rem; font-weight: 700; }
.article-link:hover { border-color: var(--blue); color: var(--navy); }

/* Supporting index and project gallery */
.slide-items { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; margin-top: 1.2rem; border: 1px solid var(--line-strong); background: var(--line-strong); }
.slide-item { position: relative; display: flex; min-width: 0; min-height: 11rem; flex-direction: column; justify-content: space-between; gap: .65rem; padding: 1rem; background: #fff; color: inherit; text-decoration: none; }
a.slide-item:hover { z-index: 1; box-shadow: inset 0 -4px var(--cyan); }
.item-copy { display: flex; min-width: 0; flex-direction: column; gap: .45rem; }
.item-copy strong { color: var(--navy); font-size: 1.05rem; line-height: 1.25; }
.item-copy span { color: var(--muted); font-size: clamp(.76rem, .85vw, .88rem); line-height: 1.5; }
.item-copy small { color: var(--blue); font-size: .7rem; font-weight: 800; }
.item-arrow { align-self: flex-end; color: var(--blue); }
.slide-index .slide-item { min-height: 20rem; padding: .65rem; }
.slide-index .slide-item > img { width: 100%; height: clamp(8rem, 19vh, 11rem); border: 1px solid var(--line); background: #fff; object-fit: cover; object-position: top center; }
.slide-index .item-copy { padding: 0 .25rem; }
.gallery-items { grid-template-columns: repeat(6, minmax(0, 1fr)); margin-top: .8rem; }
.gallery-items .slide-item { min-height: 12.5rem; padding: .45rem; }
.gallery-items img { width: 100%; height: clamp(5rem, 12vh, 7rem); border: 1px solid var(--line); background: #fff; object-fit: contain; }
.gallery-items .item-copy { padding: 0 .25rem .25rem; }
.gallery-items .item-copy strong { font-size: .75rem; }
.gallery-items .item-copy span { font-size: .65rem; line-height: 1.35; }

/* Skills matrix */
.skills-matrix { margin-top: 1.15rem; border-top: 3px solid var(--navy); }
.skill-row { display: grid; grid-template-columns: minmax(10rem, .75fr) minmax(14rem, 1fr) minmax(0, 1.7fr); align-items: center; min-height: 4.6rem; border-bottom: 1px solid var(--line); }
.skill-row:nth-child(even) { background: var(--surface-blue); }
.skill-row > * { margin: 0; padding: .65rem .8rem; }
.skill-row strong { color: var(--navy); font-size: .95rem; }
.skill-row span { border-right: 1px solid var(--line); border-left: 1px solid var(--line); color: var(--ink); font-size: .78rem; font-weight: 750; }
.skill-row p { color: var(--muted); font-size: .78rem; line-height: 1.4; }

/* Closing */
.slide-closing .slide-content { grid-template-columns: minmax(0, 1fr) 10rem; width: min(100%, 80rem); }
.slide-closing h2 { max-width: 25ch; font-size: clamp(1.9rem, 3.3vw, 3.3rem); }
.slide-closing .slide-visual { width: 10rem; max-height: none; justify-self: end; padding: .3rem; }
.slide-closing .slide-visual::after { content: "PORTFOLIO"; }
.fit-list { display: grid; gap: .4rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.fit-list li { position: relative; padding: .55rem .65rem .55rem 1.65rem; border-bottom: 1px solid var(--line); color: var(--ink); font-size: .86rem; line-height: 1.4; }
.fit-list li::before { position: absolute; top: .72rem; left: .45rem; width: .58rem; height: .58rem; background: var(--cyan); content: ""; }
.collaboration-line, .ownership-line { margin: .65rem 0 0; padding: .5rem .65rem; font-size: .78rem; line-height: 1.42; }
.collaboration-line { border-left: 3px solid var(--cyan); background: var(--surface-blue); color: var(--muted); }
.ownership-line { border-left: 3px solid var(--navy); background: var(--surface-navy); color: var(--ink); font-weight: 750; }
.contact-list { display: flex; flex-wrap: wrap; gap: .45rem; margin-top: .7rem; }
.contact-list a { padding: .38rem .55rem; border: 1px solid var(--line-strong); border-radius: var(--radius); color: var(--navy); font-size: .72rem; font-weight: 750; }
.contact-list a:hover { border-color: var(--blue); background: var(--surface-blue); }
.closing-line { margin: .65rem 0 0; color: var(--navy); font-size: clamp(.9rem, 1.2vw, 1.15rem); font-weight: 800; }

/* Disclosure ledger */
.disclosure-list { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; margin: 1rem 0 0; border: 1px solid var(--line-strong); background: var(--line-strong); }
.disclosure-list div { min-width: 0; padding: .8rem; background: #fff; }
.disclosure-list dt { color: var(--navy); font-size: .82rem; font-weight: 800; line-height: 1.35; }
.disclosure-list dd { margin: .45rem 0 0; color: var(--muted); font-size: .7rem; line-height: 1.45; }

/* Controls */
.overview-select { display: none; }
.control-button { display: inline-flex; min-height: 2.35rem; align-items: center; justify-content: center; gap: .3rem; padding: .35rem .65rem; border-radius: var(--radius); color: var(--muted); }
.control-button:hover:not(:disabled) { background: var(--surface-blue); color: var(--navy); }
.control-button:disabled { cursor: not-allowed; opacity: .3; }
.overview-button[aria-pressed="true"] { background: var(--surface-navy); color: var(--navy); }
.deck-status-wrap { display: flex; min-width: 5.5rem; flex-direction: column; align-items: center; text-align: center; }
.deck-count-group { max-width: 7rem; overflow: hidden; color: var(--muted); font-size: .55rem; font-weight: 800; letter-spacing: .06em; line-height: 1.1; text-overflow: ellipsis; text-transform: uppercase; white-space: nowrap; }
.deck-count { color: var(--muted); font-size: .88rem; font-variant-numeric: tabular-nums; }
.deck-count strong { color: var(--navy); }
.keyboard-help { position: relative; color: var(--muted); font-size: .75rem; }
.keyboard-help summary { padding: .42rem .55rem; border-radius: var(--radius); cursor: pointer; list-style: none; }
.keyboard-help summary::-webkit-details-marker { display: none; }
.keyboard-help summary::before { color: var(--blue); content: "? "; font-weight: 900; }
.keyboard-help summary:hover { background: var(--surface-blue); color: var(--navy); }
.keyboard-help p { position: absolute; right: 0; bottom: calc(100% + .55rem); width: min(24rem, 80vw); margin: 0; padding: .75rem; border: 1px solid var(--line-strong); background: #fff; color: var(--muted); line-height: 1.45; }

/* Overview keeps semantic content but intentionally reduces each slide to its thesis. */
.deck.is-overview .deck-stage { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); align-content: start; gap: .75rem; padding: 1rem; }
.deck.is-overview .deck-slide, .js .deck.is-overview .deck-slide { display: block; min-height: 11.5rem; padding: 1rem; overflow: hidden; border: 1px solid var(--line-strong); background: #fff; animation: none; }
.deck.is-overview .deck-slide.is-active { border-color: var(--blue); box-shadow: inset 4px 0 var(--blue); }
.deck.is-overview .slide-content, .deck.is-overview .slide-timeline .slide-content, .deck.is-overview .slide-method .slide-content, .deck.is-overview .slide-index .slide-content, .deck.is-overview .slide-skills .slide-content, .deck.is-overview .slide-disclosure .slide-content, .deck.is-overview .slide-gallery .slide-content, .deck.is-overview .slide-closing .slide-content { display: block; min-height: 0; padding: 0; }
.deck.is-overview .slide-copy { padding-right: 1.6rem; }
.deck.is-overview .slide-kicker { margin-bottom: .35rem; font-size: .56rem; }
.deck.is-overview .deck-slide h2 { max-width: 24ch; font-size: 1rem; letter-spacing: -.01em; }
.deck.is-overview .slide-summary { margin-top: .4rem; font-size: .68rem; line-height: 1.4; }
.deck.is-overview .slide-visual { max-width: 35%; max-height: 4.5rem; margin: .6rem 0 0 auto; }
.deck.is-overview .slide-visual img { max-height: 3.3rem; }
.deck.is-overview .slide-visual::after { padding: .12rem .2rem; font-size: .42rem; }
.deck.is-overview :is(.capability-list,.role-line,.career-timeline,.method-flow,.main-line,.support-line,.case-context,.architecture-strip,.decision-region,.case-outcome,.boundary-line,.slide-items,.skills-matrix,.fit-list,.collaboration-line,.ownership-line,.disclosure-list,.slide-note,.article-link,.contact-list,.closing-line) { display: none; }
.deck.is-overview .slide-number { top: auto; right: .8rem; bottom: .65rem; font-size: .55rem; }
.deck.is-overview .overview-select { position: absolute; z-index: 4; inset: 0; display: grid; width: 100%; height: 100%; padding: .6rem; place-items: start end; color: var(--blue); }
.deck.is-overview .overview-select span { display: grid; width: 1.9rem; height: 1.9rem; place-items: center; border: 1px solid var(--line-strong); background: #fff; }
.deck.is-overview .overview-select:hover { background: rgba(52,126,181,.05); }
.deck.is-overview .overview-select:focus-visible { outline-offset: -4px; }

:where(a, button, summary):focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
@keyframes slide-in { from { opacity: 0; transform: translateY(.35rem); } to { opacity: 1; transform: translateY(0); } }

@media (min-width: 1200px) {
  .slide-case h2 { font-size: clamp(2rem, 2.5vw, 2.65rem); }
  .case-field { padding: .56rem .68rem; }
  .case-field p { font-size: .9rem; line-height: 1.42; }
  .case-field h3, .decision-region > h3 { font-size: .68rem; }
  .decision-list li { min-height: 7rem; padding: .68rem .72rem; }
  .decision-list strong { font-size: .88rem; }
  .decision-list p { font-size: .86rem; line-height: 1.42; }
  .boundary-line { font-size: .75rem; }
  .article-link { font-size: .72rem; }
  .slide-case .slide-visual { max-height: 48vh; }
  .slide-case .slide-visual img { max-height: calc(48vh - 1.35rem); }
}

@media (max-width: 1100px) {
  .slide-case .slide-content { grid-template-columns: minmax(0, 2.25fr) minmax(12rem, .75fr); }
  .slide-case { font-size: .72rem; }
  .case-field { padding: .4rem .48rem; }
  .decision-list li { min-height: 5.6rem; padding: .45rem .5rem; }
  .slide-case .slide-visual { max-height: 36vh; }
  .slide-case .slide-visual img { max-height: calc(36vh - 1.35rem); }
  .gallery-items { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .gallery-items .slide-item { min-height: 8.8rem; }
}

@media (max-width: 760px) {
  :root { --topbar-height: 3.2rem; --control-height: 3.75rem; }
  .deck-topbar, .deck-controls { gap: .2rem; padding-right: max(.6rem, env(safe-area-inset-right)); padding-left: max(.6rem, env(safe-area-inset-left)); }
  .deck-home span, .deck-brand { display: none; }
  .deck-home { margin-right: auto; }
  .deck-language { font-size: .72rem; }
  .deck-slide { padding: 1.35rem max(.85rem, env(safe-area-inset-right)) 1rem max(.85rem, env(safe-area-inset-left)); border-left-width: 3px; }
  .slide-content, .slide-case .slide-content, .slide-hero .slide-content, .slide-closing .slide-content { display: flex; min-height: auto; flex-direction: column; align-items: stretch; gap: 1rem; }
  .slide-timeline .slide-content, .slide-method .slide-content, .slide-index .slide-content, .slide-skills .slide-content, .slide-disclosure .slide-content, .slide-gallery .slide-content { padding-top: 0; }
  .deck-slide h2, .slide-hero h2, .slide-timeline h2, .slide-method h2, .slide-index h2, .slide-skills h2, .slide-disclosure h2, .slide-gallery h2, .slide-closing h2 { max-width: 22ch; font-size: clamp(1.55rem, 7.5vw, 2.3rem); }
  .slide-summary { font-size: .9rem; }
  .slide-number { top: .55rem; right: max(.85rem, env(safe-area-inset-right)); font-size: .54rem; }
  .slide-visual, .slide-case .slide-visual, .slide-hero .slide-visual, .slide-closing .slide-visual { order: 2; width: min(100%, 27rem); max-height: none; margin: 0 auto; justify-self: center; }
  .slide-visual img, .slide-case .slide-visual img { max-height: 42vh; }
  .slide-hero .slide-visual { width: min(68vw, 15rem); }
  .slide-closing .slide-visual { width: 8rem; }
  .capability-list, .career-timeline, .method-flow, .case-context, .case-outcome, .decision-list, .slide-items, .skills-matrix, .disclosure-list { grid-template-columns: 1fr; }
  .capability-list div + div, .career-timeline li + li { padding-left: 0; border-left: 0; border-top: 1px solid var(--line); }
  .career-timeline li::before { display: none; }
  .method-flow li { min-height: 0; }
  .architecture-strip { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .architecture-strip li { min-width: 0; border: 1px solid var(--line); }
  .architecture-strip li + li { border-left: 1px solid var(--line); }
  .architecture-strip li + li::before { display: none; }
  .decision-list li { min-height: 0; }
  .slide-case { font-size: .78rem; }
  .case-field p, .decision-list p { font-size: .76rem; }
  .slide-item, .slide-index .slide-item { min-height: 0; }
  .slide-index .slide-item > img { height: 9rem; }
  .gallery-items { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery-items .slide-item { min-height: 9rem; }
  .skill-row { display: grid; grid-template-columns: 1fr; padding: .45rem 0; }
  .skill-row > * { padding: .28rem .6rem; }
  .skill-row span { border: 0; }
  .control-button span { display: none; }
  .control-button { min-width: 2.55rem; padding: .35rem; }
  .deck-status-wrap { min-width: 4.8rem; }
  .keyboard-help summary { width: 2.4rem; overflow: hidden; white-space: nowrap; }
  .keyboard-help summary::before { display: inline-block; width: 1rem; content: "?"; text-align: center; }
  .keyboard-help p { right: -3rem; }
  .deck.is-overview .deck-stage { grid-template-columns: 1fr; padding: .65rem; }
}

@media (max-height: 700px) and (min-width: 761px) {
  :root { --topbar-height: 3rem; --control-height: 3.25rem; }
  .deck-slide { padding-top: .75rem; padding-bottom: .6rem; }
  .slide-kicker { margin-bottom: .28rem; }
  .slide-summary { margin-top: .4rem; }
  .slide-case h2 { font-size: clamp(1.35rem, 2vw, 1.85rem); }
  .case-context { margin-top: .4rem; }
  .architecture-strip, .decision-region, .case-outcome { margin-top: .35rem; }
  .decision-list li { min-height: 4.8rem; }
  .slide-case .slide-visual { max-height: 34vh; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}
@media (forced-colors: active) {
  .deck-progress span, .fit-list li::before { background: Highlight; }
  .deck-slide, .slide-item, .slide-visual, .control-button, .icon-button, .case-field { border-color: CanvasText; }
  :where(a, button, summary):focus-visible { outline-color: Highlight; }
}

.no-js .deck { display: block; height: auto; overflow: visible; }
.no-js .deck-topbar { position: sticky; top: 0; min-height: var(--topbar-height); }
.no-js .deck-progress, .no-js .deck-controls, .no-js .overview-select { display: none; }
.no-js .deck-stage { overflow: visible; }
.no-js .deck-slide { min-height: 100vh; border-bottom: 1px solid var(--line); }

@media print {
  @page { size: landscape; margin: .25in; }
  body { background: #fff !important; color: var(--ink) !important; }
  .deck { display: block !important; height: auto !important; overflow: visible !important; }
  .deck-topbar, .deck-progress, .deck-controls, .overview-select, .skip-link { display: none !important; }
  .deck-stage, .deck.is-overview .deck-stage { display: block !important; overflow: visible !important; padding: 0 !important; }
  .deck-slide, .js .deck-slide, .deck.is-overview .deck-slide, .js .deck.is-overview .deck-slide {
    display: block !important;
    width: 100% !important;
    height: 7.55in !important;
    min-height: 7.55in !important;
    padding: .18in !important;
    break-after: page;
    page-break-after: always;
    overflow: hidden !important;
    border: 0 !important;
    background: #fff !important;
    box-shadow: none !important;
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
  .deck-slide:last-child { break-after: auto; page-break-after: auto; }
  .slide-content, .deck.is-overview .slide-content, .deck.is-overview .slide-timeline .slide-content, .deck.is-overview .slide-method .slide-content, .deck.is-overview .slide-index .slide-content, .deck.is-overview .slide-skills .slide-content, .deck.is-overview .slide-disclosure .slide-content, .deck.is-overview .slide-gallery .slide-content, .deck.is-overview .slide-closing .slide-content { width: 100% !important; min-height: 7.12in !important; padding-top: 0 !important; }
  .slide-case .slide-content { display: grid !important; grid-template-columns: 2.1fr .9fr !important; gap: .16in !important; }
  .slide-hero .slide-content, .slide-closing .slide-content { display: grid !important; }
  .case-context, .case-outcome { display: grid !important; grid-template-columns: 1fr 1fr !important; }
  .architecture-strip { display: flex !important; }
  .decision-list { display: grid !important; grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
  .decision-list li { min-height: 0 !important; }
  .slide-items { display: grid !important; grid-template-columns: repeat(3, minmax(0, 1fr)) !important; }
  .slide-index .slide-item { min-height: 3.15in !important; }
  .slide-index .slide-item > img { height: 1.35in !important; }
  .gallery-items { grid-template-columns: repeat(6, minmax(0, 1fr)) !important; }
  .skill-row { display: grid !important; grid-template-columns: minmax(10rem, .75fr) minmax(14rem, 1fr) minmax(0, 1.7fr) !important; }
  .disclosure-list { grid-template-columns: repeat(5, minmax(0, 1fr)) !important; }
  .deck.is-overview :is(.capability-list,.role-line,.career-timeline,.method-flow,.main-line,.support-line,.case-context,.architecture-strip,.decision-region,.case-outcome,.boundary-line,.slide-items,.skills-matrix,.fit-list,.collaboration-line,.ownership-line,.disclosure-list,.slide-note,.article-link,.contact-list,.closing-line) { display: revert; }
  .deck.is-overview .capability-list, .deck.is-overview .career-timeline, .deck.is-overview .method-flow, .deck.is-overview .case-context, .deck.is-overview .architecture-strip, .deck.is-overview .decision-list, .deck.is-overview .case-outcome, .deck.is-overview .slide-items, .deck.is-overview .skills-matrix, .deck.is-overview .fit-list, .deck.is-overview .contact-list, .deck.is-overview .disclosure-list { display: grid; }
  .slide-number { color: var(--navy) !important; }
  a { color: var(--blue) !important; }
}