:root {
  --ink: #182330;
  --muted: #637080;
  --paper: #f5f7f9;
  --white: #ffffff;
  --sage: #496b87;
  --sage-dark: #304b63;
  --peach: #b47b4c;
  --line: #d9dfe5;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: "DM Sans", sans-serif; line-height: 1.65; }
img { display: block; max-width: 100%; }
a { color: inherit; }
button { font: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 1000; padding: .7rem 1rem; background: var(--ink); color: white; }
.skip-link:focus { top: 1rem; }
.site-header { position: sticky; top: 0; z-index: 50; max-width: var(--max); margin: 0 auto; padding: 1.1rem 1.5rem; display: flex; justify-content: space-between; align-items: center; background: rgba(245,247,249,.94); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(24,35,48,.12); }
.brand { display: flex; align-items: center; gap: .75rem; text-decoration: none; font: 700 .95rem "Manrope", sans-serif; }
.brand span { display: grid; place-items: center; width: 2.2rem; aspect-ratio: 1; border-radius: 50%; background: var(--sage); color: white; font-size: .72rem; }
nav { display: flex; gap: 1.5rem; }
nav a { text-decoration: none; color: var(--muted); font-size: .85rem; font-weight: 600; }
nav a:hover, nav a:focus-visible { color: var(--sage); }
nav a.nav-resume { color: var(--sage-dark); font-weight: 800; }
.menu-button { display: none; border: 1px solid var(--line); border-radius: 999px; padding: .45rem .8rem; background: transparent; color: var(--ink); }

.hero, .section, .contact, footer { max-width: var(--max); margin: 0 auto; padding-left: 1.5rem; padding-right: 1.5rem; }
.hero { min-height: 68vh; padding-top: 3.5rem; padding-bottom: 3.5rem; display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(2.5rem,5vw,5rem); align-items: center; }
.eyebrow { margin: 0 0 1rem; color: var(--sage); font-size: .75rem; font-weight: 800; letter-spacing: .15em; text-transform: uppercase; }
h1, h2, h3, h4 { font-family: "Manrope", sans-serif; }
h1 { max-width: 640px; margin: 0; font-size: clamp(2.05rem,3.35vw,3.35rem); line-height: 1.08; letter-spacing: -.04em; }
.hero-intro { max-width: 620px; margin: 1.3rem 0 1.6rem; font-size: clamp(1rem,1.3vw,1.15rem); color: var(--muted); }
.button-row { display: flex; gap: .75rem; flex-wrap: wrap; }
.button { padding: .85rem 1.2rem; border-radius: 999px; text-decoration: none; font-weight: 700; font-size: .9rem; transition: transform .2s, background .2s; }
.button:hover { transform: translateY(-2px); }
.button.primary { background: var(--sage); color: white; }
.button.primary:hover { background: var(--sage-dark); }
.button.secondary { border: 1px solid var(--line); background: var(--white); }
.quick-facts { display: flex; flex-wrap: wrap; gap: .45rem 1.2rem; margin-top: 1.7rem; color: var(--muted); font-size: .78rem; }
.quick-facts span::before { content: "•"; margin-right: .55rem; color: var(--peach); }
.portrait-card { padding: .8rem; background: var(--white); border: 1px solid var(--line); border-radius: 1.4rem; box-shadow: 0 22px 60px rgba(24,35,48,.14); transform: rotate(1.5deg); }
.portrait-card img { width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: 50% 20%; border-radius: 1rem; }
.portrait-card div { padding: 1rem .4rem .35rem; }
.portrait-card strong, .portrait-card span { display: block; }
.portrait-card span { color: var(--muted); font-size: .82rem; }

.section { padding-top: 4.5rem; padding-bottom: 4.5rem; border-top: 1px solid var(--line); }
.section-heading { max-width: 740px; margin-bottom: 2rem; }
.section-heading.split { max-width: none; display: flex; justify-content: space-between; gap: 3rem; align-items: end; }
.section-heading h2, .contact h2 { margin: 0; font-size: clamp(1.65rem,2.7vw,2.65rem); line-height: 1.12; letter-spacing: -.035em; }
.section-note { max-width: 330px; margin: 0; color: var(--muted); font-size: .9rem; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2.5rem,5vw,5rem); }
.about-copy { font-size: clamp(1rem,1.35vw,1.14rem); color: var(--muted); }
.about-copy p:first-child { margin-top: 0; }
.focus-list article { display: grid; grid-template-columns: 2.4rem 1fr; gap: 1rem; padding: 1.3rem 0; border-top: 1px solid var(--line); }
.focus-list article:last-child { border-bottom: 1px solid var(--line); }
.focus-list article > span { color: var(--peach); font-weight: 800; }
.focus-list h3 { margin: 0 0 .25rem; font-size: 1rem; }
.focus-list p { margin: 0; color: var(--muted); font-size: .9rem; }

.projects { background: var(--ink); color: white; max-width: none; padding-left: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); padding-right: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); }
.projects .eyebrow { color: #a9cce3; }
.projects .section-note { color: #bdc9d2; }
.project-grid { display: grid; grid-template-columns: 1fr; gap: 1.1rem; }
.project-card { overflow: hidden; display: grid; grid-template-columns: 36% 1fr; min-height: 220px; border: 1px solid #3c5162; border-radius: 1.1rem; background: #223445; }
.project-card.featured { grid-column: auto; min-height: 240px; }
.project-card img { width: 100%; height: 100%; object-fit: cover; background: white; }
.project-card img[src*="pid-temperature"] { object-fit: contain; padding: .6rem; }
.project-card img[src*="fictional-estimating"] { object-fit: contain; padding: .6rem; }
.project-content { padding: clamp(1.25rem,2.2vw,1.8rem); }
.project-type { margin: 0 0 .65rem; color: var(--peach); font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.project-card h3, .extra-grid h3 { margin: 0 0 .55rem; font-size: clamp(1.2rem,1.8vw,1.55rem); line-height: 1.18; }
.project-card p:not(.project-type) { color: #cad3da; }
.tags { display: flex; gap: .45rem; flex-wrap: wrap; margin-top: 1.2rem; }
.tags span { padding: .35rem .65rem; border: 1px solid #556b7d; border-radius: 999px; color: #d4dde4; font-size: .72rem; }
.project-links { display: flex; flex-wrap: wrap; gap: .8rem 1.3rem; margin-top: 1.5rem; }
.project-link { display: inline-flex; align-items: center; gap: .5rem; color: #a9cce3; font-size: .86rem; font-weight: 800; text-decoration: none; }
.project-link span { transition: transform .2s; }
.project-link:hover span, .project-link:focus-visible span { transform: translate(3px,-3px); }

.timeline { border-top: 1px solid var(--line); }
.experience-row { display: grid; grid-template-columns: minmax(170px,.38fr) 1fr; gap: 2rem; padding: 1.8rem 0; border-bottom: 1px solid var(--line); }
.experience-label span { display: inline-block; padding: .35rem .7rem; border-radius: 999px; background: #e3ebf1; color: var(--sage-dark); font-size: .72rem; font-weight: 800; text-transform: uppercase; }
.experience-label p, .experience-row p { color: var(--muted); }
.experience-label p { font-size: .85rem; }
.experience-row h3 { margin: 0; font-size: clamp(1.35rem,2.5vw,2rem); }
.experience-row h4 { margin: .25rem 0 1rem; color: var(--sage); font-size: .95rem; }
.experience-row > div:last-child > p { max-width: 760px; }

.certification-card { display: grid; grid-template-columns: 150px 1fr auto; gap: 2rem; align-items: center; padding: 2rem; border: 1px solid var(--line); border-radius: 1.1rem; background: var(--white); }
.certification-mark { display: grid; place-items: center; width: 130px; aspect-ratio: 1; border-radius: 50%; background: #f4d329; color: #bd1726; border: 8px solid #252b2d; font: 800 1.15rem "Manrope", sans-serif; letter-spacing: .06em; }
.certification-content h3 { margin: 0 0 .7rem; font-size: clamp(1.35rem,2.5vw,2rem); line-height: 1.2; }
.certification-content > p:not(.project-type) { margin: 0; color: var(--muted); }
.certification-meta { display: flex; gap: .5rem 1.2rem; flex-wrap: wrap; margin-top: 1rem; color: var(--muted); font-size: .8rem; }
.certification-meta span::before { content: "•"; margin-right: .5rem; color: var(--peach); }
.certification-link { display: inline-flex; align-items: center; gap: .5rem; padding: .75rem 1rem; border: 1px solid var(--line); border-radius: 999px; color: var(--sage-dark); font-weight: 800; font-size: .85rem; text-decoration: none; white-space: nowrap; }
.certification-link:hover, .certification-link:focus-visible { background: var(--sage); color: white; border-color: var(--sage); }
.course-certifications { display: grid; grid-template-columns: repeat(2,1fr); gap: 1.1rem; margin-top: 1.1rem; }
.course-certificate { overflow: hidden; display: grid; grid-template-columns: 42% 1fr; border: 1px solid var(--line); border-radius: 1rem; background: var(--white); }
.certificate-image { min-height: 230px; background: #e9eef1; }
.certificate-image img { width: 100%; height: 100%; object-fit: cover; object-position: center; transition: transform .25s; }
.certificate-image:hover img { transform: scale(1.02); }
.course-certificate > div { padding: 1.4rem; }
.course-certificate h3 { margin: 0 0 .65rem; font-size: 1.15rem; line-height: 1.25; }
.course-certificate > div > p:not(.project-type) { margin: 0 0 1rem; color: var(--muted); font-size: .85rem; }
.course-certificate > div > a { color: var(--sage-dark); font-size: .83rem; font-weight: 800; text-decoration: none; }

.extracurricular { background: var(--white); max-width: none; padding-left: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); padding-right: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); }
.extra-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.extra-grid article { background: var(--paper); border: 1px solid var(--line); border-radius: 1rem; overflow: hidden; }
.extra-grid img { width: 100%; height: 230px; object-fit: cover; }
.extra-grid article > div { padding: 1.6rem; }
.extra-grid p:last-child { color: var(--muted); }

.photo-deck { overflow: hidden; }
.deck-controls { display: flex; gap: .7rem; align-items: center; }
.deck-button { width: 2.8rem; height: 2.8rem; border: 1px solid var(--line); border-radius: 50%; background: var(--white); color: var(--ink); cursor: pointer; }
.deck-button:hover, .deck-button:focus-visible { background: var(--sage); color: white; }
.deck-status { min-width: 3rem; text-align: center; color: var(--muted); font-size: .85rem; }
.deck { position: relative; min-height: min(55vw,540px); border-radius: 1.2rem; background: #e8e3da; overflow: hidden; }
.slide { position: absolute; inset: 0; margin: 0; display: grid; grid-template-rows: minmax(0,1fr) auto; opacity: 0; transform: translateX(4%); pointer-events: none; transition: opacity .45s ease, transform .45s ease; }
.slide.active { opacity: 1; transform: translateX(0); pointer-events: auto; }
.slide img, .slide video { width: 100%; height: 100%; object-fit: contain; }
.slide video { background: #101820; }
.slide figcaption { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem 1.2rem; border-top: 1px solid var(--line); background: var(--white); color: var(--ink); }
.slide figcaption span { color: var(--muted); }
.deck-dots { display: flex; justify-content: center; gap: .45rem; margin-top: 1.2rem; }
.deck-dot { width: .55rem; height: .55rem; padding: 0; border: 0; border-radius: 50%; background: #c2bdb3; cursor: pointer; }
.deck-dot.active { width: 1.7rem; border-radius: 999px; background: var(--sage); }

.entrepreneurship { background: var(--white); max-width: none; padding-left: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); padding-right: max(1.5rem,calc((100vw - var(--max))/2 + 1.5rem)); }
.venture-feature { display: grid; grid-template-columns: .85fr 1.15fr; border: 1px solid var(--line); border-radius: 1.1rem; background: var(--paper); overflow: hidden; }
.venture-feature > img { width: 100%; height: 350px; min-height: 0; align-self: center; object-fit: cover; object-position: center 43%; }
.venture-copy { padding: clamp(1.7rem,3vw,2.7rem); align-self: center; }
.venture-copy h3 { margin: 0 0 .8rem; font-size: clamp(1.5rem,2.4vw,2.1rem); }
.venture-copy > p:not(.project-type) { color: var(--muted); }
.venture-metrics { display: grid; grid-template-columns: repeat(3,1fr); gap: .8rem; margin: 1.7rem 0; }
.venture-metrics div { padding: 1rem; border: 1px solid var(--line); border-radius: .8rem; background: var(--white); }
.venture-metrics strong, .venture-metrics span { display: block; }
.venture-metrics strong { font: 800 1.45rem "Manrope",sans-serif; color: var(--sage-dark); }
.venture-metrics span { color: var(--muted); font-size: .73rem; }
.venture-links { display: flex; flex-wrap: wrap; gap: .75rem; }
.venture-links a { padding: .7rem 1rem; border-radius: 999px; background: var(--sage); color: white; font-size: .82rem; font-weight: 800; text-decoration: none; }
.venture-gallery { display: grid; grid-template-columns: repeat(2,1fr); gap: .8rem; margin-top: .8rem; }
.venture-gallery figure { margin: 0; overflow: hidden; border: 1px solid var(--line); border-radius: .8rem; background: var(--paper); }
.venture-gallery img { width: 100%; height: 300px; object-fit: cover; }
.venture-gallery .project-proof { grid-column: 1 / -1; display: grid; grid-template-columns: 1.25fr .75fr; }
.venture-gallery .project-proof img { height: 100%; min-height: 300px; }
.venture-gallery .project-proof figcaption { align-self: center; padding: 1.4rem; }
.venture-gallery .testimonial img { display: block; height: auto; object-fit: contain; background: var(--white); }
.venture-gallery figcaption { padding: .7rem .8rem; color: var(--muted); font-size: .78rem; }
.venture-gallery figcaption strong, .venture-gallery figcaption span { display: block; }
.venture-gallery figcaption strong { color: var(--sage-dark); font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; }
.venture-gallery .project-proof figcaption > span { margin-top: .2rem; color: var(--ink); font-weight: 800; font-size: .9rem; }
.project-facts { display: grid; gap: .35rem; margin: .65rem 0 0; padding: .65rem 0 0; border-top: 1px solid var(--line); list-style: none; }
.project-facts li { position: relative; padding-left: .8rem; color: var(--muted); font-size: .73rem; line-height: 1.45; }
.project-facts li::before { content: ""; position: absolute; left: 0; top: .55em; width: .28rem; height: .28rem; border-radius: 50%; background: var(--clay); }

.contact { margin-top: 2rem; margin-bottom: 2rem; padding-top: 3.2rem; padding-bottom: 3.2rem; display: grid; grid-template-columns: .7fr 1fr; gap: 4rem; align-items: center; border-radius: 1.5rem; background: var(--sage); color: white; }
.contact .eyebrow { color: #d5e7f2; }
.contact-links { border-top: 1px solid rgba(255,255,255,.3); }
.contact-links a { display: grid; grid-template-columns: 80px 1fr auto; gap: 1rem; padding: 1.2rem 0; border-bottom: 1px solid rgba(255,255,255,.3); text-decoration: none; }
.contact-links span { color: #d5e7f2; font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }
.contact-links b { transition: transform .2s; }
.contact-links a:hover b { transform: translate(3px,-3px); }
footer { padding-top: 2rem; padding-bottom: 2rem; display: flex; justify-content: space-between; color: var(--muted); font-size: .82rem; }

@media (max-width: 860px) {
  .menu-button { display: block; }
  nav { position: absolute; left: 1rem; right: 1rem; top: 4.6rem; padding: 1rem; display: none; flex-direction: column; background: var(--white); border: 1px solid var(--line); border-radius: 1rem; box-shadow: 0 20px 50px rgba(23,38,45,.12); }
  nav.open { display: flex; }
  .hero { min-height: auto; grid-template-columns: 1fr; padding-top: 4rem; }
  .portrait-card { max-width: 440px; transform: none; }
  .section-heading.split { display: block; }
  .section-note { margin-top: 1.2rem; }
  .about-grid, .extra-grid, .contact { grid-template-columns: 1fr; }
  .project-grid { grid-template-columns: 1fr; }
  .project-card, .project-card.featured { grid-column: auto; grid-template-columns: 1fr; min-height: 0; }
  .project-card img { height: 250px; }
  .experience-row { grid-template-columns: 1fr; gap: .5rem; }
  .certification-card { grid-template-columns: 1fr; }
  .certification-mark { width: 105px; }
  .certification-link { width: fit-content; }
  .course-certifications { grid-template-columns: 1fr; }
  .deck-controls { margin-top: 1.5rem; }
  .contact { gap: 3rem; border-radius: 0; margin-bottom: 0; }
  .venture-feature { grid-template-columns: 1fr; }
  .venture-feature > img { height: 340px; }
  .venture-gallery { grid-template-columns: repeat(2,1fr); }
}

@media (min-width: 561px) and (max-width: 860px) {
  .site-header { flex-wrap: wrap; row-gap: .7rem; }
  .menu-button { display: none; }
  nav { position: static; order: 3; width: 100%; padding: .7rem 0 0; display: flex; justify-content: space-between; gap: .65rem; flex-direction: row; background: transparent; border: 0; border-top: 1px solid var(--line); border-radius: 0; box-shadow: none; }
  nav a { font-size: .68rem; white-space: nowrap; }
}

@media (max-width: 560px) {
  .brand { font-size: .82rem; }
  h1 { font-size: clamp(2.8rem,15vw,4rem); }
  .hero, .section { padding-top: 3.5rem; padding-bottom: 3.5rem; }
  .quick-facts { display: grid; }
  .extra-grid img { height: 240px; }
  .course-certificate { grid-template-columns: 1fr; }
  .certificate-image { min-height: 210px; }
  .deck { min-height: 500px; }
  .slide figcaption { display: block; }
  .slide figcaption span { display: block; margin-top: .2rem; font-size: .78rem; }
  .contact-links a { grid-template-columns: 65px 1fr auto; }
  .venture-metrics { grid-template-columns: 1fr; }
  .venture-gallery { grid-template-columns: 1fr; }
  .venture-gallery .project-proof { display: block; }
  .venture-gallery .project-proof img { height: 280px; min-height: 0; }
  footer { display: grid; gap: .6rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}