/* =========================================================================
   Andy — Hong An Do · portfolio stylesheet
   Palette from the STEMIFY brand: blue, orange, white.
   ========================================================================= */

:root {
  --blue: #0B4F8F;
  --blue-deep: #083D70;
  --navy: #0A2A52;
  --navy-deep: #071D3A;
  --orange: #F58220;
  --orange-dark: #D96B0C;   /* accent text on light backgrounds (large text only) */
  --white: #FFFFFF;
  --soft: #F4F7FB;
  --soft-2: #E6EDF6;
  --text: #1B2B3A;
  --muted: #4A5B6D;

  --font: "Poppins", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 18px;
  --radius-lg: 32px;
  --shadow-sm: 0 2px 10px rgba(10, 42, 82, .08);
  --shadow: 0 18px 40px -18px rgba(10, 42, 82, .35);
  --header-h: 76px;
  --gutter: clamp(16px, 4vw, 40px);
  --section-y: clamp(64px, 9vw, 120px);
  --ease: cubic-bezier(.2, .7, .2, 1);

  /* organic blob shapes */
  --blob-a: 58% 42% 55% 45% / 47% 52% 48% 53%;
  --blob-b: 41% 59% 38% 62% / 56% 39% 61% 44%;
  --blob-c: 63% 37% 47% 53% / 38% 58% 42% 62%;
  --blob-d: 46% 54% 64% 36% / 60% 45% 55% 40%;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
body.no-scroll { overflow: hidden; }
img, svg { display: block; max-width: 100%; }
img { height: auto; }
a { color: var(--blue); }
h1, h2, h3, h4 { margin: 0; line-height: 1.12; font-weight: 800; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0; padding: 0; }
main:focus { outline: none; }
main { overflow-x: clip; } /* offset blobs never cause sideways scroll */

.container { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 var(--gutter); }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--navy); color: var(--white); padding: 10px 16px; border-radius: 8px;
  font-weight: 600; text-decoration: none; transition: top .2s;
}
.skip-link:focus { top: 12px; }

:focus-visible { outline: 3px solid var(--orange); outline-offset: 3px; }

.eyebrow {
  display: inline-block;
  font-size: .82rem; font-weight: 600; letter-spacing: .22em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 14px;
}
.eyebrow--light { color: var(--orange); }
.accent { color: var(--orange-dark); }
.on-dark .accent, .accent--bright { color: var(--orange); }

.section { padding: var(--section-y) 0; }
.section--soft { background: var(--soft); }
.section-head { max-width: 720px; margin-bottom: clamp(32px, 5vw, 56px); }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-title { font-size: clamp(1.9rem, 4vw, 2.9rem); color: var(--navy); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55em;
  min-height: 48px; padding: 12px 26px;
  font: 700 .95rem/1.2 var(--font); letter-spacing: .04em; text-transform: uppercase;
  text-decoration: none; border: 2px solid transparent; border-radius: 4px; cursor: pointer;
  transition: transform .25s var(--ease), background-color .25s, color .25s, box-shadow .25s, border-color .25s;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.btn--blue { background: var(--blue); color: var(--white); }
.btn--blue:hover { background: var(--navy); }
.btn--orange { background: var(--orange); color: var(--navy); }
.btn--orange:hover { background: #FF9640; }
.btn--ghost { background: transparent; color: var(--blue); border-color: var(--blue); }
.btn--ghost:hover { background: var(--blue); color: var(--white); }
.btn--ghost-light { background: transparent; color: var(--white); border-color: rgba(255,255,255,.7); }
.btn--ghost-light:hover { background: var(--white); color: var(--navy); }
.btn.is-disabled, .btn[aria-disabled="true"] {
  background: var(--soft-2); color: #50627A; border-color: transparent;
  cursor: not-allowed; box-shadow: none; transform: none;
}
.btn-note {
  font-size: .7rem; font-weight: 600; letter-spacing: .08em;
  padding: 3px 8px; border-radius: 999px; background: var(--white); color: var(--blue);
}
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.text-link {
  display: inline-flex; align-items: center; gap: .4em;
  font-weight: 600; color: var(--blue); text-decoration: none; padding-bottom: 4px;
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 2px no-repeat;
}
.text-link:hover { animation: underline-redraw .7s var(--ease); }
.text-link:hover { color: var(--navy); }

/* ---------- Media + placeholders ---------- */
.media {
  position: relative; overflow: hidden;
  background: linear-gradient(135deg, #DCE7F4 0%, #EEF3FA 55%, #FCE3CB 100%);
}
.media > img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.media.is-loading > img { opacity: 0; scale: 1.04; }
img[data-img]:not([src]) { visibility: hidden; } /* no alt-text flash before main.js resolves the URL */
/* new images fade and settle in; cached ones appear at once. Both keep the hover-zoom transition. */
.media > img.is-loaded:not(.no-fade) { opacity: 1; transition: opacity .6s ease, scale 1.1s var(--ease), transform .6s var(--ease); }
.media > img.is-loaded.no-fade { transition: transform .6s var(--ease); }
.media.is-missing > img { visibility: hidden; }
.media.is-missing::after {
  content: "Image coming soon";
  position: absolute; inset: 0; display: grid; place-items: center; padding: 12px; text-align: center;
  font-size: .8rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: var(--blue);
  background:
    radial-gradient(circle at 25% 25%, rgba(245,130,32,.35), transparent 55%),
    radial-gradient(circle at 80% 80%, rgba(11,79,143,.30), transparent 55%),
    linear-gradient(135deg, #E3ECF7, #FDF0E3);
}
.media[data-placeholder].is-missing::after {
  content: attr(data-placeholder);
  font-size: 1.3rem; font-weight: 800; letter-spacing: 0; color: var(--white);
  background: linear-gradient(135deg, var(--blue), var(--orange));
}

/* Blob-masked photo with a darker offset blob behind it */
.blob {
  position: relative; width: 100%; max-width: 460px; aspect-ratio: 1 / 1; margin: 0 auto;
  isolation: isolate;
}
.blob__back {
  position: absolute; inset: 0; z-index: -1;
  background: var(--navy-deep);
  border-radius: var(--blob-b);
  transform: translate(7%, 6%) rotate(-8deg);
  transition: transform .8s var(--ease);
}
.blob__photo { position: absolute; inset: 0; border-radius: var(--blob-a); box-shadow: var(--shadow); }
.blob--b .blob__photo { border-radius: var(--blob-c); }
.blob--b .blob__back { border-radius: var(--blob-d); transform: translate(-7%, 6%) rotate(10deg); }
.blob--c .blob__photo { border-radius: var(--blob-d); }
.blob--c .blob__back { border-radius: var(--blob-a); transform: translate(6%, -6%) rotate(6deg); }
.blob__back--orange { background: var(--orange); }
.blob__back--blue { background: var(--blue); }
.blob:hover .blob__back { transform: translate(4%, 3%) rotate(-2deg); }
.blob--b:hover .blob__back { transform: translate(-4%, 3%) rotate(4deg); }
.blob--c:hover .blob__back { transform: translate(3%, -3%) rotate(2deg); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  min-height: var(--header-h);
  background: var(--white);
  box-shadow: 0 1px 0 rgba(10, 42, 82, .06), 0 4px 18px -12px rgba(10, 42, 82, .25);
  transition: box-shadow .25s;
}
.site-header.is-scrolled { box-shadow: 0 1px 0 rgba(10, 42, 82, .08), 0 8px 24px -12px rgba(10, 42, 82, .35); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: var(--header-h); }

.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--navy); }
.brand-mark { width: 88px; height: 50px; border-radius: 10px; flex: none; background: var(--white); border: 1px solid var(--soft-2); }
.brand-mark > img { object-fit: contain; object-position: center; }
.brand-mark.is-missing { width: 50px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-size: 1.35rem; font-weight: 800; color: var(--blue); letter-spacing: -.01em; }
.brand-sub { font-size: .78rem; font-weight: 500; color: var(--muted); letter-spacing: .06em; }

.nav-list { list-style: none; display: flex; align-items: center; gap: clamp(4px, 1.2vw, 14px); }
.nav-list a {
  position: relative; display: block; padding: 10px 8px;
  font-size: .82rem; font-weight: 600; letter-spacing: .08em;
  color: var(--navy); text-decoration: none; white-space: nowrap;
}
.nav-list a::after {
  content: ""; position: absolute; left: 8px; right: 8px; bottom: 4px; height: 3px;
  background: var(--orange); border-radius: 2px;
  transform: scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
}
.nav-list a:hover::after, .nav-list a.is-active::after { transform: scaleX(1); }
.nav-list a.is-active { color: var(--blue); }

.nav-toggle {
  display: none; position: relative; width: 48px; height: 48px; padding: 0;
  border: 0; border-radius: 8px; background: var(--soft); cursor: pointer;
}
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  position: absolute; left: 13px; width: 22px; height: 2.5px; border-radius: 2px;
  background: var(--navy); transition: transform .3s var(--ease), opacity .2s;
}
.nav-toggle-bar { top: 50%; margin-top: -1px; }
.nav-toggle-bar::before, .nav-toggle-bar::after { content: ""; left: 0; }
.nav-toggle-bar::before { transform: translateY(-7px); }
.nav-toggle-bar::after { transform: translateY(7px); }
.menu-open .nav-toggle-bar { background: transparent; }
.menu-open .nav-toggle-bar::before { transform: rotate(45deg); background: var(--navy); }
.menu-open .nav-toggle-bar::after { transform: rotate(-45deg); background: var(--navy); }

@media (max-width: 960px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--white);
    box-shadow: 0 18px 30px -18px rgba(10, 42, 82, .4);
    border-top: 1px solid var(--soft-2);
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
    visibility: hidden; opacity: 0; transform: translateY(-8px);
    transition: opacity .25s, transform .25s var(--ease), visibility 0s linear .25s;
  }
  .menu-open .site-nav { visibility: visible; opacity: 1; transform: none; transition-delay: 0s; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; padding: 8px var(--gutter) 20px; }
  .nav-list a { padding: 15px 4px; font-size: .95rem; border-bottom: 1px solid var(--soft-2); }
  .nav-list li:last-child a { border-bottom: 0; }
  .nav-list a::after { left: 4px; right: auto; width: 32px; bottom: 8px; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--soft); border-top: 1px solid var(--soft-2); padding: 44px 0; min-height: 140px; }
.footer-inner {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px 32px;
}
.footer-line { margin: 0; color: var(--muted); font-weight: 500; }
.back-to-top {
  display: inline-flex; align-items: center; gap: 8px; justify-self: end;
  font-weight: 600; font-size: .9rem; color: var(--blue); text-decoration: none;
  padding: 10px 16px; border: 2px solid var(--blue); border-radius: 4px;
  transition: background .25s, color .25s;
}
.back-to-top:hover { background: var(--blue); color: var(--white); }
.footer-copy { grid-column: 1 / -1; margin: 10px 0 0; padding-top: 18px; border-top: 1px solid var(--soft-2); font-size: .85rem; color: var(--muted); }
@media (max-width: 640px) {
  .footer-inner { grid-template-columns: 1fr; justify-items: start; }
  .back-to-top { justify-self: start; }
}

/* =========================================================================
   HOME
   ========================================================================= */
.home-hero { position: relative; padding: clamp(36px, 6vw, 72px) 0 clamp(48px, 7vw, 96px); overflow: hidden; }
.home-hero::before {
  /* soft brand wash in the corner */
  content: ""; position: absolute; right: -12vw; top: -14vw; width: 46vw; height: 46vw;
  border-radius: var(--blob-c); background: radial-gradient(circle, rgba(245,130,32,.14), transparent 65%);
  pointer-events: none;
}
.home-hero__grid { display: grid; grid-template-columns: 1fr 1.15fr; align-items: center; gap: clamp(32px, 6vw, 88px); }

.hero-portrait { position: relative; width: 100%; max-width: 480px; margin: 0 auto; aspect-ratio: 4 / 5; isolation: isolate; }
.hero-portrait__shape {
  position: absolute; z-index: -1; inset: 8% 0 0 4%;
  background: linear-gradient(160deg, var(--blue) 0%, var(--navy) 100%);
  border-radius: var(--blob-a);
  transform: translate(5%, 4%) rotate(-6deg);
}
.hero-portrait__shape::after {
  content: ""; position: absolute; width: 34%; aspect-ratio: 1; right: -6%; top: -4%;
  border-radius: var(--blob-d); background: var(--orange);
}
.hero-portrait__img { position: absolute; inset: 0; border-radius: var(--blob-b); box-shadow: var(--shadow); }
/* home-hero.png is a tall photo with the subject in the middle: keep head to hands in frame */
.hero-portrait__img > img { object-position: 50% 42%; }
/* white photo background -> soft brand tint so the blob edge reads on a white page */
.hero-portrait:not(.is-cutout) .hero-portrait__img { background: #E4EDF8; }
.hero-portrait:not(.is-cutout) .hero-portrait__img > img { mix-blend-mode: multiply; }
/* Transparent PNG cutout: drop the frame, let the figure stand on the shape */
.hero-portrait.is-cutout .hero-portrait__img { border-radius: 0; background: none; box-shadow: none; overflow: visible; }
/* tall full-length cutout: show head-to-waist, figure stands on the banner below */
.hero-portrait.is-cutout .hero-portrait__img > img { object-fit: cover; object-position: 50% 0; filter: drop-shadow(0 18px 24px rgba(10, 42, 82, .22)); }
.hero-portrait.is-cutout .hero-portrait__shape { inset: 16% 0 0 2%; transform: rotate(-4deg); }
.hero-portrait.is-cutout { align-self: end; margin-bottom: calc(-1 * clamp(48px, 7vw, 96px)); }

.home-hero__heading { font-size: clamp(2.3rem, 5.2vw, 4.1rem); color: var(--navy); margin-bottom: 26px; }
.home-hero__heading .accent { display: inline-block; }
.lead-border {
  border-left: 7px solid var(--orange);
  padding: 4px 0 4px clamp(18px, 2.4vw, 28px);
  margin-bottom: 34px; color: var(--text); font-size: 1.02rem;
}

/* overlapping banner */
.banner-band { background: linear-gradient(to bottom, var(--white) 50%, var(--blue) 50%); }
.banner {
  position: relative; overflow: hidden;
  background: var(--navy);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4.5vw, 56px) clamp(24px, 5vw, 72px);
  box-shadow: 0 30px 60px -30px rgba(7, 29, 58, .7);
}
.banner::after {
  content: ""; position: absolute; right: -60px; bottom: -80px; width: 260px; height: 260px;
  border-radius: var(--blob-d); background: var(--orange); opacity: .9;
}
.banner__title {
  position: relative; z-index: 1;
  font-size: clamp(2rem, 5.6vw, 4.6rem); line-height: 1.05; color: var(--white); letter-spacing: -.02em;
}
.banner__title span { display: inline-block; margin-right: .25em; }
.banner__title span:nth-child(2) { color: var(--orange); }

/* feature blocks */
.features { background: var(--blue); color: var(--white); padding: clamp(56px, 7vw, 96px) 0 var(--section-y); }
.features__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(48px, 6vw, 80px) clamp(32px, 5vw, 72px); }
.feature { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1fr); align-items: center; gap: clamp(20px, 3vw, 36px); }
.feature:nth-child(2) { margin-top: clamp(0px, 9vw, 120px); }
.feature:nth-child(3) { grid-column: 1 / -1; width: min(100%, 640px); justify-self: center; }
.feature .blob { max-width: 330px; }
.feature__title { font-size: clamp(1.9rem, 3.4vw, 2.8rem); color: var(--white); margin-bottom: 12px; }
.feature__text { color: #EAF1FA; margin-bottom: 22px; }

/* welcome */
.welcome {
  position: relative; overflow: hidden;
  background: var(--navy); color: var(--white);
  padding: clamp(80px, 12vw, 160px) 0; text-align: center;
}
.welcome::before, .welcome::after {
  content: ""; position: absolute; border-radius: var(--blob-a); pointer-events: none;
}
.welcome::before { width: 340px; height: 340px; left: -120px; top: -140px; background: rgba(11, 79, 143, .55); }
.welcome::after { width: 220px; height: 220px; right: -60px; bottom: -90px; background: rgba(245, 130, 32, .85); border-radius: var(--blob-c); }
.welcome__title {
  position: relative; z-index: 1;
  font-size: clamp(2.2rem, 6.4vw, 5.2rem); font-style: italic; font-weight: 300; line-height: 1.1; letter-spacing: -.02em;
}
.welcome__title strong { font-weight: 800; color: var(--orange); }

/* =========================================================================
   PAGE HERO (inner pages)
   ========================================================================= */
.page-hero {
  position: relative; overflow: hidden;
  background: var(--navy); color: var(--white);
  padding: clamp(56px, 8vw, 104px) 0;
}
.page-hero::after {
  content: ""; position: absolute; right: -140px; bottom: -180px; width: 420px; height: 420px;
  border-radius: var(--blob-c); background: rgba(11, 79, 143, .55); pointer-events: none;
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero__grid { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: clamp(32px, 6vw, 80px); }
.page-hero__title { font-size: clamp(2.6rem, 7vw, 5.6rem); line-height: 1; letter-spacing: -.02em; margin-bottom: 22px; }
.page-hero__title .accent { color: var(--orange); display: block; width: fit-content; }
.page-hero__lead { max-width: 560px; font-size: clamp(1.02rem, 1.4vw, 1.15rem); color: #DCE6F2; font-weight: 300; }
.page-hero .blob__back { background: var(--orange); }
.page-hero--compact { padding: clamp(48px, 6.5vw, 88px) 0; }
.page-hero--compact .page-hero__title { font-size: clamp(2.2rem, 5.6vw, 4.4rem); max-width: 16ch; }
.page-hero--compact .page-hero__title .accent { display: inline; }

/* =========================================================================
   ABOUT
   ========================================================================= */
.drives { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 32px); }
.drive-card {
  background: var(--white); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s;
}
.drive-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.drive-card .media { aspect-ratio: 4 / 3; }
.drive-card__body { padding: 24px 26px 28px; border-top: 5px solid var(--orange); }
.drive-card__title { font-size: 1.5rem; color: var(--navy); margin-bottom: 8px; }
.drive-card p { color: var(--muted); }

.interests { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.interest {
  display: flex; align-items: center; gap: 16px;
  padding: 22px 22px; border-radius: var(--radius);
  background: var(--white); border: 2px solid var(--soft-2);
  font-weight: 600; color: var(--navy); font-size: 1.05rem;
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.interest:hover { border-color: var(--orange); transform: translateY(-3px); box-shadow: var(--shadow-sm); }
.interest__icon {
  flex: none; width: 56px; height: 56px; display: grid; place-items: center;
  border-radius: var(--blob-a); background: var(--blue); color: var(--white);
}
.interest:nth-child(even) .interest__icon { background: var(--orange); color: var(--navy); border-radius: var(--blob-c); }
.interest__icon svg { width: 28px; height: 28px; }

/* =========================================================================
   PROJECTS
   ========================================================================= */
.featured {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(28px, 4vw, 56px); align-items: center;
}
.featured__figure { margin: 0; }
.featured__figure .media { aspect-ratio: 4 / 3; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.featured__figure figcaption { margin-top: 14px; font-size: .95rem; color: var(--muted); padding-left: 14px; border-left: 4px solid var(--orange); }
.featured__label {
  display: inline-block; background: var(--orange); color: var(--navy);
  font-size: .75rem; font-weight: 700; letter-spacing: .2em; padding: 6px 12px; border-radius: 4px; margin-bottom: 18px;
}
.featured__title { font-size: clamp(2.2rem, 4.6vw, 3.6rem); color: var(--navy); margin-bottom: 10px; }
.featured__sub { font-weight: 600; color: var(--blue); font-size: 1.1rem; margin-bottom: 28px; }

.stats { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 30px; }
.stat {
  background: var(--white); border-radius: var(--radius); padding: 18px 16px;
  box-shadow: var(--shadow-sm); border-bottom: 4px solid var(--blue);
  transition: transform .3s var(--ease), box-shadow .3s;
}
.stat:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.stat:nth-child(2) { border-bottom-color: var(--orange); }
.stat__num { display: block; font-size: clamp(1.5rem, 2.6vw, 2.1rem); font-weight: 800; color: var(--navy); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat__label { display: block; font-size: .85rem; color: var(--muted); line-height: 1.35; margin-top: 6px; }
.featured__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 22px; }

.project-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(20px, 3vw, 32px); }
.project-card {
  position: relative; display: flex; flex-direction: column; height: 100%;
  background: var(--white); border-radius: var(--radius); overflow: hidden;
  box-shadow: var(--shadow-sm); text-decoration: none; color: inherit;
  transition: transform .35s var(--ease), box-shadow .35s;
}
.project-card:hover, .project-card:focus-visible { transform: translateY(-6px); box-shadow: var(--shadow); }
.project-card .media { aspect-ratio: 4 / 3; }
.project-card .media > img { transition: transform .6s var(--ease); }
.project-card:hover .media > img { transform: scale(1.05); }
.project-card__body { display: flex; flex-direction: column; flex: 1; padding: 22px 24px 26px; }
.project-card__title { font-size: 1.25rem; color: var(--navy); margin-bottom: 12px; }
.project-card__more { margin-top: auto; padding-top: 16px; font-weight: 600; font-size: .9rem; color: var(--blue); }
.project-card__more::after { content: " →"; transition: margin .3s; }
.project-card:hover .project-card__more::after { margin-left: 4px; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: .78rem; font-weight: 600; padding: 4px 12px; border-radius: 999px;
  background: var(--soft); color: var(--blue); border: 1px solid var(--soft-2);
}
.page-hero .tag { background: rgba(255,255,255,.1); color: var(--white); border-color: rgba(255,255,255,.25); }

/* ---------- Project detail ---------- */
.back-link {
  display: flex; width: fit-content; align-items: center; gap: 6px; margin-bottom: 26px;
  font-weight: 600; font-size: .92rem; color: #DCE6F2; text-decoration: none;
  transition: color .25s, translate .3s var(--ease);
}
.back-link:hover { color: var(--orange); translate: -4px 0; }
.back-link--dark { color: var(--blue); margin: 0; }
.back-link--dark:hover { color: var(--navy); }
.detail-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-top: 4px; }
.detail-date {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--orange); font-size: .95rem;
}
.detail-role {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase;
  background: var(--orange); color: var(--navy); padding: 6px 12px; border-radius: 4px; margin-bottom: 18px;
}
.detail-desc { font-style: italic; color: #DCE6F2; max-width: 640px; font-size: 1.08rem; font-weight: 300; margin-top: 18px; }

.detail { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 64px); align-items: start; }
.detail__figure { margin: 0; position: sticky; top: calc(var(--header-h) + 24px); }
.detail__figure .media { aspect-ratio: 4 / 3; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.detail__figure figcaption { margin-top: 14px; font-size: .95rem; color: var(--muted); padding-left: 14px; border-left: 4px solid var(--orange); }
.bullets { list-style: none; display: grid; gap: 18px; }
.bullets li {
  position: relative; padding: 20px 22px 20px 58px; background: var(--white);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
}
.bullets li::before {
  content: ""; position: absolute; left: 22px; top: 26px; width: 18px; height: 18px;
  border-radius: var(--blob-a); background: var(--orange);
}
.bullets li:nth-child(even)::before { background: var(--blue); border-radius: var(--blob-c); }
.chips { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.chip {
  display: inline-flex; align-items: baseline; gap: 8px;
  padding: 10px 18px; border-radius: 999px; background: var(--navy); color: var(--white); font-size: .9rem;
}
.chip strong { color: var(--orange); font-size: 1.1rem; font-weight: 800; }
.detail-footer { margin-top: 40px; }

/* =========================================================================
   RESEARCH
   ========================================================================= */
.research-list { display: grid; gap: clamp(56px, 8vw, 104px); }
.research {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center;
}
.research:nth-child(even) .research__media { order: 2; }
.research__media .media { aspect-ratio: 4 / 3; border-radius: var(--radius-lg); box-shadow: var(--shadow); }
.research__num {
  display: inline-block; font-size: .8rem; font-weight: 700; letter-spacing: .22em; color: var(--blue);
  padding-bottom: 6px; border-bottom: 3px solid var(--orange); margin-bottom: 18px;
}
.research__title { font-size: clamp(1.8rem, 3.6vw, 2.7rem); color: var(--navy); margin-bottom: 10px; }
.research__place { display: flex; align-items: center; gap: 6px; font-weight: 600; color: var(--muted); margin-bottom: 18px; }
.research__place svg { color: var(--orange-dark); }
.research__desc { font-size: 1.05rem; margin-bottom: 24px; }
.figure-highlight {
  display: inline-block; margin-bottom: 26px; padding: 10px 22px; border-radius: var(--radius);
  background: var(--navy); color: var(--orange); font-size: clamp(1.8rem, 3.6vw, 2.6rem); font-weight: 800; line-height: 1.2;
}
.award-badge {
  display: inline-flex; align-items: center; gap: 14px;
  padding: 14px 20px 14px 14px; border-radius: var(--radius);
  background: #FFF6E5; border: 2px solid #F2C14E; color: var(--navy); font-weight: 600; line-height: 1.4;
}
.award-badge svg { flex: none; width: 44px; height: 44px; }

/* =========================================================================
   COMMUNITY
   ========================================================================= */
.community-list { display: grid; gap: clamp(64px, 9vw, 120px); }
.community-row { display: grid; grid-template-columns: 1fr 1.1fr; gap: clamp(32px, 6vw, 88px); align-items: center; }
.community-row:nth-child(even) .community-row__media { order: 2; }
.community-row__title { font-size: clamp(1.7rem, 3.4vw, 2.5rem); color: var(--navy); margin-bottom: 16px; }
.community-row__title::after {
  content: ""; display: block; width: 64px; height: 6px; border-radius: 3px; background: var(--orange); margin-top: 16px;
}
.community-row__desc { font-size: 1.05rem; margin-bottom: 24px; }
.mini-stats { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; }
.mini-stat {
  padding: 12px 18px; border-radius: var(--radius); background: var(--soft);
  border-left: 5px solid var(--blue); font-size: .92rem; color: var(--muted); line-height: 1.3;
}
.mini-stat:nth-child(2) { border-left-color: var(--orange); }
.mini-stat strong { display: block; font-size: 1.45rem; font-weight: 800; color: var(--navy); }

/* =========================================================================
   ACHIEVEMENTS
   ========================================================================= */
.timeline { list-style: none; position: relative; max-width: 860px; margin: 0 auto; }
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 0; bottom: 0; width: 4px; margin-left: -2px;
  background: linear-gradient(var(--blue), var(--orange)); border-radius: 2px;
}
.milestone { position: relative; width: 50%; padding: 0 48px 48px 0; }
.milestone:nth-child(even) { margin-left: 50%; padding: 0 0 48px 48px; }
.milestone:last-child { padding-bottom: 0; }
.milestone::before {
  content: ""; position: absolute; top: 30px; right: -11px; width: 22px; height: 22px; border-radius: 50%;
  background: var(--white); border: 5px solid var(--blue);
}
.milestone:nth-child(even)::before { right: auto; left: -11px; border-color: var(--orange); }
.milestone__card {
  display: flex; align-items: center; gap: 18px;
  background: var(--white); border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--shadow-sm);
  transition: transform .35s var(--ease), box-shadow .35s;
}
.milestone__card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.medal { flex: none; width: 64px; height: 76px; }
.milestone__year { display: block; font-size: .85rem; font-weight: 700; letter-spacing: .18em; color: var(--orange-dark); }
.milestone__award { font-size: 1.35rem; color: var(--navy); margin: 2px 0 4px; }
.milestone__event { margin: 0; color: var(--muted); line-height: 1.45; }

/* =========================================================================
   Scroll reveal
   ========================================================================= */
.js .reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }
.js .reveal-delay-1 { transition-delay: .12s; }
.js .reveal-delay-2 { transition-delay: .24s; }

/* Children of lists/stacks rise in one after another once their .reveal is
   visible. main.js adds .stagger and the --i index. Uses `translate` so the
   items' own hover `transform` still works. */
.js .stagger > * { opacity: 0; }
.js .is-visible .stagger > *, .js .stagger.is-visible > * {
  opacity: 1;
  animation: rise .7s var(--ease) backwards;
  animation-delay: calc(.2s + var(--i, 0) * 90ms);
}

.js .hero-portrait.reveal { transform: translateY(26px) scale(.96); }
.js .hero-portrait.reveal.is-visible { transform: none; }

/* timeline: milestones slide in from their side, the line draws, dots pop */
.js .milestone.reveal { transform: translateX(-32px); }
.js .milestone.reveal:nth-child(even) { transform: translateX(32px); }
.js .milestone.reveal.is-visible { transform: none; }
.js .timeline::before { transform: scaleY(0); transform-origin: top; transition: transform 1.8s var(--ease) .1s; }
.js .timeline.is-visible::before { transform: none; }
.js .milestone::before { transform: scale(0); transition: transform .5s cubic-bezier(.34, 1.56, .64, 1) .35s; }
.js .milestone.is-visible::before { transform: none; }
@media (max-width: 720px) {
  .js .milestone.reveal, .js .milestone.reveal:nth-child(odd) { transform: translateX(24px); }
  .js .milestone.reveal.is-visible { transform: none; }
}

/* banner words land one by one */
.js .banner__title span { opacity: 0; translate: 0 .4em; transition: opacity .7s var(--ease), translate .7s var(--ease); }
.js .banner.is-visible .banner__title span { opacity: 1; translate: none; }
.js .banner__title span:nth-child(1) { transition-delay: .25s; }
.js .banner__title span:nth-child(2) { transition-delay: .4s; }
.js .banner__title span:nth-child(3) { transition-delay: .55s; }

/* marker-style highlight swipes under accent words */
.js .home-hero__heading .accent,
.js .page-hero__title .accent,
.js .welcome__title strong {
  background: linear-gradient(rgba(245, 130, 32, .3), rgba(245, 130, 32, .3)) 0 92% / 0 .22em no-repeat;
  transition: background-size 1s var(--ease) .6s;
}
.js .is-visible .home-hero__heading .accent,
.js .is-visible .page-hero__title .accent,
.js .welcome__title.is-visible strong { background-size: 100% .22em; }

.js .community-row__title::after { transform: scaleX(0); transform-origin: left; transition: transform .8s var(--ease) .4s; }
.js .is-visible .community-row__title::after { transform: none; }

/* =========================================================================
   Ambient motion — slow drifts on decorative shapes. Animates the
   individual translate/rotate/scale properties, which stack on top of
   each shape's existing `transform`.
   ========================================================================= */
@keyframes rise { from { opacity: 0; translate: 0 14px; } }
@keyframes drift { 50% { translate: 0 -12px; rotate: 2deg; } }
@keyframes bob { 50% { translate: -6px 8px; scale: 1.06; } }
@keyframes spin { to { rotate: 360deg; } }
@keyframes swing { 20% { rotate: 12deg; } 40% { rotate: -9deg; } 60% { rotate: 5deg; } 80% { rotate: -2deg; } }
@keyframes nudge-up { 50% { translate: 0 -3px; } }
@keyframes underline-redraw {
  0%     { background-position: 100% 100%; background-size: 100% 2px; }
  50%    { background-position: 100% 100%; background-size: 0 2px; }
  50.01% { background-position: 0 100%;    background-size: 0 2px; }
  100%   { background-position: 0 100%;    background-size: 100% 2px; }
}

.home-hero::before { animation: spin 60s linear infinite; }
.hero-portrait__shape { animation: drift 9s ease-in-out infinite; }
.hero-portrait__shape::after { animation: bob 6s ease-in-out infinite; }
.banner::after { animation: bob 8s ease-in-out infinite; }
.welcome::before { animation: drift 12s ease-in-out infinite; }
.welcome::after { animation: bob 9s ease-in-out infinite reverse; }
.page-hero::after { animation: drift 14s ease-in-out infinite; }
.blob__back { animation: drift 10s ease-in-out infinite; }
.blob--b .blob__back { animation-delay: -3.5s; }
.blob--c .blob__back { animation-delay: -7s; }

/* =========================================================================
   Hover & micro-interactions
   ========================================================================= */
/* light sweep across buttons */
.btn { position: relative; overflow: hidden; isolation: isolate; }
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(110deg, transparent 30%, rgba(255, 255, 255, .35) 50%, transparent 70%);
  transform: translateX(-120%);
}
.btn:hover::before { transform: translateX(120%); transition: transform .75s var(--ease); }
.btn.is-disabled::before, .btn[aria-disabled="true"]::before { display: none; }

/* photos zoom gently inside their frames */
.drive-card:hover .media > img,
.blob:hover .blob__photo > img,
.featured__figure:hover .media > img,
.research__media:hover .media > img { transform: scale(1.05); }

/* gradient bar along the bottom of a hovered project card */
.project-card::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px;
  background: linear-gradient(90deg, var(--blue), var(--orange));
  transform: scaleX(0); transform-origin: left; transition: transform .45s var(--ease);
}
.project-card:hover::after, .project-card:focus-visible::after { transform: none; }
.project-card__title { transition: color .3s; }
.project-card:hover .project-card__title { color: var(--blue); }

.interest__icon { transition: rotate .45s var(--ease), scale .45s var(--ease); }
.interest:hover .interest__icon { rotate: -10deg; scale: 1.08; }

.medal { transform-origin: 50% 0; }
.milestone__card:hover .medal, .award-badge:hover .medal { animation: swing 1s ease-in-out; }

.back-to-top:hover svg { animation: nudge-up .8s ease-in-out infinite; }

/* mobile menu items cascade in */
@media (max-width: 960px) {
  .menu-open .nav-list li { animation: rise .45s var(--ease) backwards; animation-delay: calc(.05s + var(--i, 0) * 45ms); }
}

/* reading-progress line under the header (scroll-driven; no JS) */
.scroll-progress {
  position: absolute; left: 0; right: 0; bottom: 0; height: 3px; pointer-events: none;
  background: linear-gradient(90deg, var(--blue), var(--orange));
  transform: scaleX(0); transform-origin: left;
}
@keyframes progress { to { transform: scaleX(1); } }
@supports (animation-timeline: scroll()) {
  .scroll-progress { animation: progress auto linear both; animation-timeline: scroll(root); }
}

/* =========================================================================
   Hover-to-expand figure (project detail + research pages). main.js counts 3-2-1 while
   the pointer rests on the picture, then grows a fixed layer over the page,
   so nothing in the layout moves. Leaving shrinks it back to the frame.
   ========================================================================= */
@keyframes fade-in { from { opacity: 0; } }
@keyframes count-pop {
  0%   { opacity: 0; scale: .5; }
  25%  { opacity: 1; scale: 1.1; }
  40%, 100% { opacity: 1; scale: 1; }
}
@keyframes count-ring { from { opacity: .8; scale: 1; } to { opacity: 0; scale: 1.7; } }

.is-zoomable .media { cursor: zoom-in; }
.detail__figure.is-zooming, .research__media.is-zooming { z-index: 20; } /* lift above neighbouring cards */
.research__media.is-zooming { position: relative; }
.zoom-count {
  position: absolute; inset: 0; z-index: 2; display: grid; place-items: center; pointer-events: none;
  background: rgba(7, 29, 58, .3); animation: fade-in .3s ease both;
}
.zoom-count span {
  position: relative; display: grid; place-items: center; width: 84px; height: 84px; border-radius: 50%;
  background: var(--orange); color: var(--navy); box-shadow: 0 10px 30px -8px rgba(7, 29, 58, .6);
  font: 800 2.6rem/1 var(--font); animation: count-pop 1s var(--ease) both;
}
.zoom-count span::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%; border: 3px solid var(--orange);
  animation: count-ring 1s ease-out both;
}
.zoom-layer {
  position: fixed; z-index: 30; overflow: hidden;
  border-radius: var(--radius-lg); background: var(--soft-2); box-shadow: var(--shadow);
  transition: left .6s var(--ease), top .6s var(--ease), width .6s var(--ease), height .6s var(--ease), box-shadow .6s;
}
.zoom-layer.is-open { box-shadow: 0 40px 90px -30px rgba(7, 29, 58, .65); }
.zoom-layer img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }

/* =========================================================================
   Page transitions — cross-fade between pages in browsers that support
   cross-document View Transitions; others navigate normally.
   ========================================================================= */
@media (prefers-reduced-motion: no-preference) {
  @view-transition { navigation: auto; }
}
.site-header { view-transition-name: site-header; }
::view-transition-old(root) { animation: vt-out .2s ease both; }
::view-transition-new(root) { animation: vt-in .45s var(--ease) both; }
@keyframes vt-out { to { opacity: 0; } }
@keyframes vt-in { from { opacity: 0; transform: translateY(12px); } }

/* =========================================================================
   Responsive
   ========================================================================= */
@media (max-width: 1100px) {
  .nav-list a { font-size: .76rem; letter-spacing: .05em; padding: 10px 6px; }
}

@media (max-width: 960px) {
  .home-hero__grid, .page-hero__grid, .featured, .detail, .research, .community-row { grid-template-columns: 1fr; }
  .hero-portrait { max-width: 400px; }
  .features__grid { grid-template-columns: 1fr; }
  .feature:nth-child(2) { margin-top: 0; }
  .feature:nth-child(3) { width: 100%; }
  .page-hero__media { max-width: 400px; width: 100%; margin: 0 auto; }
  .research:nth-child(even) .research__media,
  .community-row:nth-child(even) .community-row__media { order: 0; }
  .community-row__media .blob { max-width: 380px; width: 88%; }
  .page-hero__media .blob { width: 88%; }
  .detail__figure { position: static; }
  .drives, .project-grid { grid-template-columns: repeat(2, 1fr); }
  .interests { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .timeline::before { left: 22px; }
  .milestone, .milestone:nth-child(even) { width: 100%; margin-left: 0; padding: 0 0 28px 56px; }
  .milestone::before, .milestone:nth-child(even)::before { left: 11px; right: auto; }
}

@media (max-width: 640px) {
  :root { --header-h: 68px; }
  .brand-mark { width: 72px; height: 42px; }
  .brand-mark.is-missing { width: 42px; }
  .brand-name { font-size: 1.2rem; }
  .feature { grid-template-columns: 1fr; text-align: left; }
  .feature .blob { max-width: 260px; margin: 0; }
  .drives, .project-grid, .interests { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .stat { display: flex; align-items: baseline; gap: 12px; }
  .stat__label { margin-top: 0; }
  .btn-row .btn { flex: 1 1 100%; }
  .banner::after { width: 96px; height: 96px; right: -44px; bottom: -44px; }
  .welcome::after { width: 120px; height: 120px; right: -60px; bottom: -70px; }
  .welcome::before { width: 200px; height: 200px; left: -110px; top: -110px; }
  .milestone__card { flex-direction: column; align-items: flex-start; gap: 12px; }
  .medal { width: 52px; height: 62px; }
  .award-badge { align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .js .reveal { opacity: 1; transform: none; }
}