/* Wayne Wang · Micron EHSS interview portfolio.
   No external font, image, framework or build dependency is required.
   Optional hero photograph: set --hero-image to an approved local image URL. */
:root {
  --color-bg: #fff;
  --color-bg-subtle: #f5f5f7;
  --color-text: #1d1d1f;
  --color-text-secondary: #626269;
  --color-accent: #0071e3;
  --color-accent-hover: #0066cc;
  --color-accent-light: #e8f1fc;
  --color-border: #d2d2d7;
  --color-border-light: #e8e8ed;
  --font-sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --container-width: 1080px;
  --header-height: 4rem;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, .06);
  --shadow-md: 0 12px 30px rgba(0, 0, 0, .07);
  --transition: .24s ease;
  --hero-image: url('../assets/media/hero-image-cpt1.png');
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 1rem); }
body { font-family: var(--font-sans); font-size: 1rem; line-height: 1.65; color: var(--color-text); background: var(--color-bg); -webkit-font-smoothing: antialiased; }
a { color: var(--color-accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent-hover); }
a:focus-visible, button:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 4px; border-radius: 4px; }
button { font: inherit; cursor: pointer; }
img { max-width: 100%; height: auto; display: block; }
[hidden] { display: none !important; }
main:focus, section:focus { outline: none; }
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 1.5rem; }
.skip-link { position: fixed; top: -100px; left: 1rem; z-index: 1000; padding: .8rem 1.25rem; color: #fff; background: var(--color-accent); border-radius: 8px; }
.skip-link:focus { top: .75rem; color: #fff; }
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .95); border-bottom: 1px solid var(--color-border-light); backdrop-filter: saturate(160%) blur(16px); }
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-container { max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; min-height: var(--header-height); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.brand { display: flex; flex-direction: column; color: var(--color-text); flex-shrink: 0; }
.brand:hover { color: var(--color-text); }
.brand strong { font-size: 1.1rem; font-weight: 650; letter-spacing: -.025em; }
.brand span { font-size: .75rem; color: var(--color-text-secondary); }
.nav-desktop { display: flex; align-items: center; gap: 1.6rem; }
.nav-desktop a { font-size: .875rem; color: var(--color-text); padding: .65rem .1rem; }
.nav-desktop a:hover { color: var(--color-accent); }
.menu-toggle { display: none; flex-direction: column; align-items: center; justify-content: center; gap: 5px; width: 44px; height: 44px; border: 0; border-radius: 8px; background: transparent; }
.menu-toggle span { width: 20px; height: 2px; background: var(--color-text); border-radius: 2px; }
.nav-mobile { position: sticky; top: var(--header-height); z-index: 99; background: #fff; border-bottom: 1px solid var(--color-border-light); box-shadow: var(--shadow-sm); }
.nav-mobile a { display: block; padding: .85rem 1.5rem; color: var(--color-text); border-top: 1px solid var(--color-border-light); }
.section { padding: 5rem 0; }
.section-label { font-size: .8rem; font-weight: 650; letter-spacing: .08em; text-transform: uppercase; color: var(--color-accent); margin-bottom: .7rem; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 700; letter-spacing: -.035em; line-height: 1.2; margin-bottom: 1rem; max-width: 850px; text-wrap: balance; }
.section-intro { color: var(--color-text-secondary); max-width: 720px; font-size: 1.05rem; }
.hero { position: relative; display: flex; align-items: center; min-height: 620px; color: #fff; background: #101820; isolation: isolate; }
.hero::before { content: ""; position: absolute; inset: 0; background-image: var(--hero-image); background-size: cover; background-position: center; z-index: -2; }
.hero::after { content: ""; position: absolute; inset: 0; background: linear-gradient(110deg, rgba(12, 20, 28, .97), rgba(12, 20, 28, .68)); z-index: -1; }
.hero-container { padding-top: 5rem; padding-bottom: 4rem; }
.hero-content { max-width: 880px; }
.hero-label { color: #c8d7e7; font-size: .9rem; margin-bottom: 1.25rem; }
.hero-title { max-width: 780px; font-size: clamp(2.2rem, 5.2vw, 4rem); line-height: 1.08; font-weight: 700; letter-spacing: -.045em; text-wrap: balance; margin-bottom: 1.5rem; }
.hero-desc { max-width: 720px; color: #e1e6ec; font-size: clamp(1rem, 1.5vw, 1.15rem); line-height: 1.75; margin-bottom: 2rem; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 1rem 1.5rem; }
.hero-link { color: #d2e7ff; font-size: .95rem; text-decoration: underline; text-underline-offset: 5px; }
.hero-link:hover { color: #fff; }
.hero-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.5rem; margin-top: 3rem; padding-top: 2rem; border-top: 1px solid rgba(255, 255, 255, .2); }
.stat { min-width: 0; }
.stat dt { color: #77b9ff; font-size: 2rem; line-height: 1.2; font-weight: 700; letter-spacing: -.03em; margin-bottom: .5rem; }
.stat dd { color: #dae2eb; font-size: .85rem; line-height: 1.5; max-width: 180px; overflow-wrap: anywhere; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; min-height: 48px; padding: .75rem 1.4rem; border: 1px solid transparent; border-radius: 999px; font-size: .95rem; font-weight: 600; transition: background var(--transition), color var(--transition), box-shadow var(--transition); text-align: center; }
.button-primary { background: var(--color-accent); color: #fff; }
.button-primary:hover { background: var(--color-accent-hover); color: #fff; box-shadow: var(--shadow-sm); }
.button-secondary { background: #fff; color: var(--color-text); border-color: var(--color-border); }
.button-secondary:hover { color: var(--color-accent); border-color: var(--color-accent); }
.program-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 2.5rem; }
.program-card { display: grid; grid-template-columns: minmax(230px, .78fr) minmax(0, 1.6fr); overflow: hidden; border: 1px solid var(--color-border-light); border-radius: var(--radius-lg); background: #fff; transition: box-shadow var(--transition); }
.program-card:hover { box-shadow: var(--shadow-md); }
.program-image { width: 100%; height: 260px; overflow: hidden; background: #f5f5f7; grid-column: 1 / -1; }
.program-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.program-card:hover .program-image img { transform: scale(1.05); }
.program-card:has(.program-image) { grid-template-columns: minmax(0, 1fr); }
.program-card:has(.program-image) .program-overview { border-right: 0; border-bottom: 1px solid var(--color-border-light); }
.program-overview { display: flex; flex-direction: column; justify-content: center; padding: 2.25rem; color: #17334f; background: #edf4fc; border-right: 1px solid var(--color-border-light); }
.overview-ih { background: #edf5f3; color: #183f36; }
.overview-safe { background: #f1eff9; color: #39305c; }
.overview-label { font-size: .76rem; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; margin-bottom: 1.25rem; }
.overview-title { font-size: 1.7rem; line-height: 1.25; letter-spacing: -.03em; font-weight: 650; margin-bottom: 1.5rem; text-wrap: balance; }
.scope-number { font-size: 3.6rem; font-weight: 700; line-height: 1.05; letter-spacing: -.04em; margin-bottom: 1.5rem; }
.scope-number span { display: block; font-size: .9rem; line-height: 1.5; letter-spacing: normal; font-weight: 500; margin-top: .65rem; max-width: 190px; }
.overview-items { list-style: none; font-size: .9rem; display: grid; gap: .6rem; }
.overview-items li { border-top: 1px solid currentColor; border-color: rgba(30, 55, 80, .15); padding-top: .6rem; }
.program-content { padding: 2.25rem; min-width: 0; }
.program-number { color: var(--color-accent); font-size: .8rem; font-weight: 700; letter-spacing: .06em; margin-bottom: .75rem; }
.program-content h3 { font-size: 1.65rem; font-weight: 650; letter-spacing: -.03em; line-height: 1.25; margin-bottom: .5rem; }
.program-company { color: var(--color-text-secondary); font-size: .88rem; margin-bottom: 1.15rem; }
.program-desc { color: var(--color-text-secondary); font-size: 1rem; line-height: 1.75; margin-bottom: 1.5rem; }
.case-facts { display: grid; gap: .85rem; }
.case-facts div { display: grid; grid-template-columns: 115px minmax(0, 1fr); gap: .75rem; }
.case-facts dt { font-size: .85rem; font-weight: 650; color: var(--color-text); }
.case-facts dd { font-size: .9rem; color: var(--color-text-secondary); }
.case-principle { margin-top: 1.25rem; padding-left: .9rem; border-left: 2px solid var(--color-border); color: var(--color-text-secondary); font-size: .86rem; }
.program-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1.5rem; }
.program-tags span { padding: .35rem .7rem; border-radius: 999px; background: var(--color-accent-light); color: #005bb5; font-size: .78rem; font-weight: 500; }
.tool-range { margin-top: 2.5rem; padding: 2rem; background: var(--color-bg-subtle); border-radius: var(--radius-md); }
.tool-range h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.tool-range p { color: var(--color-text-secondary); max-width: 750px; font-size: .95rem; }
.tool-list { display: flex; flex-wrap: wrap; list-style: none; gap: .6rem; margin-top: 1.1rem; }
.tool-list li { padding: .45rem .75rem; background: #fff; border: 1px solid var(--color-border-light); border-radius: 8px; font-size: .85rem; }
.delivery { background: var(--color-bg-subtle); }
.delivery-grid { list-style: none; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.25rem; margin-top: 2.5rem; }
.delivery-grid li { padding: 1.5rem; border: 1px solid var(--color-border-light); background: #fff; border-radius: var(--radius-md); }
.step-number { display: block; color: var(--color-accent); font-size: .8rem; font-weight: 650; margin-bottom: 1rem; }
.delivery-grid h3 { font-size: 1.1rem; line-height: 1.3; margin-bottom: .75rem; }
.delivery-grid p { color: var(--color-text-secondary); font-size: .9rem; line-height: 1.65; }
.delivery-proof { margin-top: 2rem; padding: 1.5rem 0 0; border-top: 1px solid var(--color-border); max-width: 800px; }
.delivery-proof h3 { font-size: 1.1rem; margin-bottom: .5rem; }
.delivery-proof p { color: var(--color-text-secondary); font-size: .95rem; }
.career-timeline { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.25rem; margin-top: 2.5rem; }
.ct-node { min-width: 0; padding: 1.5rem; background: #fff; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); }
.ct-node-current { grid-column: 1 / -1; border-color: #b7d4f4; background: #f7faff; }
.ct-year { color: var(--color-accent); font-size: .78rem; font-weight: 650; letter-spacing: .03em; margin-bottom: .5rem; }
.ct-co { font-size: 1.05rem; line-height: 1.35; margin-bottom: .35rem; font-weight: 650; }
.ct-role { color: var(--color-text-secondary); font-size: .875rem; line-height: 1.5; margin-bottom: .9rem; }
.ct-bullets { padding-left: 1rem; color: var(--color-text-secondary); font-size: .875rem; line-height: 1.6; display: grid; gap: .5rem; }
.ct-bullets li::marker { color: var(--color-accent); }
.ct-node-current .ct-bullets { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem 2rem; }
.capabilities { background: var(--color-bg-subtle); }
.capability-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; margin-top: 2.5rem; }
.capability-category { padding: 1.75rem; background: #fff; border: 1px solid var(--color-border-light); border-radius: var(--radius-md); }
.capability-category h3 { font-size: 1.1rem; margin-bottom: 1rem; color: #005bb5; }
.capability-category ul { padding-left: 1rem; display: grid; gap: .7rem; color: var(--color-text-secondary); font-size: .95rem; }
.capability-category li::marker { color: var(--color-accent); }
.micron-fit { margin-top: 2rem; padding: 2rem; background: var(--color-accent-light); border-radius: var(--radius-md); }
.micron-fit h3 { font-size: 1.3rem; margin-bottom: .75rem; }
.micron-fit p { color: #3c526a; max-width: 850px; }
.contact-container { text-align: center; max-width: 700px; }
.contact-container h2 { font-size: clamp(1.8rem, 3vw, 2.3rem); line-height: 1.25; letter-spacing: -.03em; margin-bottom: 1rem; text-wrap: balance; }
.contact-container > p:not(.section-label) { color: var(--color-text-secondary); margin-bottom: 1.75rem; }
.contact-buttons { display: flex; justify-content: center; flex-wrap: wrap; gap: .8rem; }
.site-footer { padding: 2rem 0; border-top: 1px solid var(--color-border-light); text-align: center; color: var(--color-text-secondary); font-size: .8rem; }
.footer-note { margin-top: .3rem; font-size: .75rem; }
/* Content is visible by default. JS enables animation only when supported. */
.reveal-ready [data-reveal] { opacity: 0; transform: translateY(14px); transition: opacity .45s ease, transform .45s ease; }
.reveal-ready [data-reveal].is-visible { opacity: 1; transform: none; }
@media (max-width: 1023px) {
  .delivery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .career-timeline { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .program-overview, .program-content { padding: 1.75rem; }
}
@media (max-width: 767px) {
  .nav-desktop { display: none; }
  .js-enabled .menu-toggle { display: flex; }
  html:not(.js-enabled) .nav-mobile[hidden] { display: flex !important; flex-wrap: wrap; position: static; }
  html:not(.js-enabled) .nav-mobile a { padding: .65rem 1rem; font-size: .85rem; }
  .section { padding: 3.25rem 0; }
  .hero { min-height: auto; }
  .hero-container { padding-top: 3.5rem; padding-bottom: 3rem; }
  .hero-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.5rem 1rem; margin-top: 2rem; }
  .stat dt { font-size: 1.75rem; }
  .program-card { grid-template-columns: minmax(0, 1fr); }
  .program-overview { border-right: 0; border-bottom: 1px solid var(--color-border-light); padding: 1.5rem; }
  .overview-title { font-size: 1.5rem; margin-bottom: 1rem; }
  .overview-label { margin-bottom: .7rem; }
  .overview-items { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .65rem 1rem; font-size: .82rem; }
  .scope-number { font-size: 2.75rem; margin-bottom: 1rem; }
  .scope-number span { max-width: none; }
  .program-content { padding: 1.5rem; }
  .program-content h3 { font-size: 1.4rem; }
  .case-facts div { grid-template-columns: minmax(0, 1fr); gap: .25rem; }
  .career-timeline, .capability-grid { grid-template-columns: minmax(0, 1fr); }
  .ct-node-current .ct-bullets { grid-template-columns: minmax(0, 1fr); }
  .tool-range, .micron-fit { padding: 1.5rem; }
}
@media (max-width: 420px) {
  .container, .header-container { padding-left: 1rem; padding-right: 1rem; }
  .brand span { font-size: .68rem; }
  .hero-title { font-size: 2.1rem; }
  .hero-actions { align-items: flex-start; flex-direction: column; }
  .delivery-grid { grid-template-columns: minmax(0, 1fr); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal-ready [data-reveal] { opacity: 1; transform: none; }
}
@media print {
  @page { margin: 15mm; }
  html { scroll-behavior: auto; }
  body { font-size: 10pt; background: #fff; color: #000; }
  .site-header, .nav-mobile, .skip-link, .hero-actions, .contact-buttons, .site-footer { display: none !important; }
  .container { max-width: none; padding: 0; }
  .section, .hero-container { padding: 1.2rem 0; }
  .hero { min-height: auto; color: #000; background: #fff; }
  .hero::before, .hero::after { display: none; }
  .hero-title { color: #000; font-size: 25pt; max-width: none; }
  .hero-label, .hero-desc, .stat dt, .stat dd { color: #222; }
  .hero-stats { border-color: #bbb; margin-top: 1rem; padding-top: 1rem; gap: 1rem; }
  .hero-desc, .section-intro, .program-desc { font-size: 10pt; }
  [data-reveal], .reveal-ready [data-reveal] { opacity: 1 !important; transform: none !important; animation: none !important; transition: none !important; }
  .program-grid, .delivery-grid, .career-timeline, .capability-grid { display: block; margin-top: 1rem; }
  .program-card { display: block; margin-bottom: 1rem; break-inside: avoid; box-shadow: none; }
  .program-overview { display: none; }
  .program-content, .ct-node, .capability-category, .delivery-grid li { padding: 1rem; }
  .program-content h3 { font-size: 15pt; }
  .ct-node, .capability-category, .delivery-grid li, .tool-range, .micron-fit, .delivery-proof { break-inside: avoid; margin-bottom: .75rem; }
  .ct-node-current .ct-bullets { display: block; }
  .ct-bullets li { margin-bottom: .4rem; }
  .section-title { font-size: 20pt; }
  .case-facts div { grid-template-columns: 100px minmax(0, 1fr); }
  a { color: #000; }
}