/* Daftiel: one continuous engineering portfolio. */

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-offset); }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font: 1rem/1.75 var(--font-body); }
a { color: inherit; }
img { display: block; max-width: 100%; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; }
a, button { -webkit-tap-highlight-color: transparent; }

::selection { background: #7563c0; color: white; }
.web-stat-hidden { position: absolute !important; width: 1px !important; height: 1px !important; overflow: hidden !important; clip-path: inset(50%) !important; white-space: nowrap !important; }

#particles-js { position: fixed; inset: 0; z-index: 0; pointer-events: none; background: linear-gradient(rgba(10,14,26,.88), rgba(10,14,26,.96)), url("img/DATA_8.jpg") center / cover no-repeat; }
#particles-js canvas { opacity: .64; }

.page-shell { position: relative; z-index: 1; width: min(var(--content-width), calc(100% - 48px)); margin: auto; }
.hero { min-height: calc(100svh - var(--header-height)); display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 64px 0 40px; }
.eyebrow { color: var(--color-accent); font-size: .875rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; line-height: 1.65; }
.eyebrow > span { color: var(--color-primary); margin-right: 12px; }
.hero-welcome { margin: 28px 0 10px; color: var(--color-muted); font-size: 1.125rem; }
.hero h1 { font-size: clamp(3rem, 7.5vw, 6rem); letter-spacing: -.045em; }
.hero-intro { display: block; font-size: .55em; color: var(--color-text); margin-bottom: 8px; }
.hero-name { color: var(--color-primary); }
.hero-role { margin-top: 24px; font-size: clamp(1.125rem, 2.2vw, 1.5rem); font-weight: 500; }
.hero-summary { max-width: 610px; margin: 14px auto 0; color: var(--color-muted); font-size: 1.0625rem; }
.actions { display: flex; align-items: center; justify-content: center; gap: 16px; flex-wrap: wrap; margin-top: 32px; }

.scroll-cue { margin-top: 56px; color: var(--color-muted); font-size: .875rem; display: flex; align-items: center; gap: 12px; text-decoration: none; }
.scroll-cue span { color: var(--color-accent); font-size: 1.5rem; }
.content-section { padding: 100px 0; border-top: 1px solid var(--color-border); }
.section-heading { margin-bottom: 40px; }
.section-heading h2, .contact-section h2 { margin-top: 18px; font-size: clamp(2rem, 4.4vw, 3.5rem); letter-spacing: -.035em; }
h2 span { color: var(--color-primary); }
.section-heading > p:last-child:not(.eyebrow) { color: var(--color-muted); max-width: 620px; margin-top: 20px; }
.heading-with-link { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; }

.heading-with-link > .text-link { flex-shrink: 0; margin-bottom: 6px; }
.about-layout { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: start; }
.about-copy { color: var(--color-muted); }
.about-copy p + p { margin-top: 20px; }
.about-copy p:first-child { color: var(--color-text); }
.expertise { border-top: 1px solid var(--color-border); }
.expertise > div { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--color-border); }
.focus-number { color: var(--color-primary); font-size: .875rem; }
.expertise h3 { font-size: 1.25rem; margin-bottom: 10px; }
.expertise p { color: var(--color-muted); font-size: .9375rem; }
.featured-project { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.3fr); overflow: hidden; border: 1px solid rgba(161,147,255,.35); border-radius: 16px; background: linear-gradient(135deg, rgba(124,111,220,.14), rgba(16,22,38,.94)); }
.project-copy { padding: 40px; }
.project-copy h3 { margin: 20px 0; font-size: clamp(1.75rem, 3vw, 2.5rem); letter-spacing: -.025em; }
.project-copy > p:not(.eyebrow) { color: var(--color-muted); }
.tags { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; padding: 0; margin: 24px 0 28px; }
.tags li { padding: 4px 10px; font-size: .875rem; border: 1px solid var(--color-border); border-radius: 4px; color: var(--color-text); }
.project-visual { min-width: 0; display: flex; flex-direction: column; justify-content: center; gap: 20px; padding: 32px; background: rgba(5,10,18,.65); text-decoration: none; border-left: 1px solid var(--color-border); }
.project-visual img { width: 100%; height: auto; border-radius: 4px; }
.project-visual > span { display: flex; justify-content: space-between; gap: 16px; font-size: .875rem; color: var(--color-accent); }
.project-visual:hover > span { text-decoration: underline; text-underline-offset: 4px; }
.project-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 20px; }
.project-card { display: flex; flex-direction: column; align-items: flex-start; padding: 32px; background: rgba(16,22,38,.82); border: 1px solid var(--color-border); border-radius: 12px; }
.project-card h3 { font-size: 1.5rem; margin: 18px 0 16px; }
.project-card > p:not(.eyebrow) { color: var(--color-muted); margin-bottom: 28px; }
.project-card .text-link { margin-top: auto; }
.project-card .tags { margin: 0 0 24px; }
.credential-category { display: block; margin-bottom: 10px; color: var(--badge-accent); font-size: .8125rem; font-weight: 600; }
.credential-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.credential-card { --badge-accent: #61c5ff; --badge-glow: rgba(97,197,255,.17); position: relative; overflow: hidden; border: 1px solid var(--color-border); border-radius: 18px; background: linear-gradient(160deg, var(--badge-glow), transparent 55%), #101626; transition: transform .25s, border-color .25s, box-shadow .25s; }
.credential-juniper { --badge-accent: #ffad55; --badge-glow: rgba(255,173,85,.15); }
.credential-champion { --badge-accent: #b4a3ff; --badge-glow: rgba(180,163,255,.18); }
.credential-legendary { --badge-accent: #a7d879; --badge-glow: rgba(167,216,121,.15); }
.credential-card::before { content: ""; position: absolute; inset: 0 24px auto; height: 2px; background: var(--badge-accent); box-shadow: 0 0 20px var(--badge-accent); pointer-events: none; }
.credential-card:hover, .credential-card:focus-within { transform: translateY(-6px); border-color: var(--badge-accent); box-shadow: 0 18px 40px rgba(0,0,0,.25), 0 0 28px var(--badge-glow); }
.credential-link { display: flex; flex-direction: column; height: 100%; padding: 24px 20px; text-decoration: none; }
.credential-link:focus-visible { outline-offset: -5px; border-radius: 18px; }
.credential-issuer { color: var(--badge-accent); font-size: .875rem; font-weight: 700; letter-spacing: .035em; margin-bottom: 20px; }
.credential-media { display: grid; place-items: center; aspect-ratio: 1; width: 100%; padding: 14px; margin-bottom: 24px; border: 1px solid rgba(255,255,255,.65); border-radius: 14px; background: radial-gradient(circle at 50% 35%, #fff 35%, #e4eaf4 100%); box-shadow: inset 0 1px 0 #fff, 0 8px 24px rgba(0,0,0,.15); }
.credential-media img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; filter: drop-shadow(0 7px 5px rgba(15,23,42,.12)); transition: transform .3s; }
.credential-card:hover img { transform: scale(1.04); }
.credential-details { flex: 1; }
.credential-card h3 { font-size: 1.25rem; line-height: 1.3; }
.credential-details p { margin-top: 10px; color: var(--color-muted); font-size: .875rem; line-height: 1.6; }
.credential-verify { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 24px; padding-top: 16px; border-top: 1px solid var(--color-border); color: var(--badge-accent); font-size: .875rem; font-weight: 600; }
.credential-verify > span { font-size: 1.25rem; }
.section-intro { color: var(--color-muted); max-width: 700px; margin: -10px 0 36px; }
.article-row { display: grid; grid-template-columns: 180px minmax(0, 1fr); gap: 28px; border-top: 1px solid var(--color-border); padding: 30px 0; }
.article-row:last-child { border-bottom: 1px solid var(--color-border); }
.article-category { color: var(--color-primary); font-size: .875rem; }
.article-row h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); }
.article-row h3 a { text-decoration: none; }
.article-row h3 a:hover { color: var(--color-accent); }
.article-row h3 span { color: var(--color-accent); white-space: nowrap; }
.article-row div > p { color: var(--color-muted); margin-top: 12px; }
.archive-link { margin-top: 28px; }
.contact-section { text-align: center; padding-bottom: 96px; background: radial-gradient(ellipse at 50% 100%, rgba(124,111,220,.12), transparent 70%); }
.contact-section p:not(.eyebrow) { max-width: 600px; margin: 24px auto 0; color: var(--color-muted); }


/* Content is visible by default, including when scripts fail or are disabled. */
.is-revealed { animation: reveal .65s ease both; }
@keyframes reveal { from { opacity: .25; transform: translateY(18px); } to { opacity: 1; transform: none; } }
/* Native proximity snap never captures wheel, touch or keyboard input.
   Tall sections remain in document flow; small/short screens scroll normally. */
@media (min-width: 801px) and (min-height: 650px) {
  html { scroll-snap-type: y proximity; }
  main > section { scroll-snap-align: start; scroll-snap-stop: normal; }
  .content-section { min-height: calc(100svh - var(--header-height)); display: flex; flex-direction: column; justify-content: center; padding: clamp(56px, 7svh, 90px) 0; }
}
@media (max-width: 800px) {

  .hero { padding-top: 64px; min-height: auto; }
  .about-layout { grid-template-columns: 1fr; gap: 32px; }
  .featured-project { grid-template-columns: 1fr; }
  .project-visual { border-left: 0; border-top: 1px solid var(--color-border); }
  .project-visual img { max-height: 360px; object-fit: contain; }
  .credential-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .content-section { padding: 72px 0; }
  .heading-with-link { align-items: flex-start; flex-direction: column; gap: 20px; }
}
@media (max-width: 520px) {
  .page-shell { width: calc(100% - 36px); }

  .hero { min-height: auto; padding: 54px 0 38px; }
  .hero h1 { font-size: clamp(2.5rem, 11vw, 3.5rem); }
  .hero .eyebrow { max-width: 290px; }
  .hero-summary { font-size: 1rem; }
  .actions { gap: 12px; }
  .scroll-cue { margin-top: 40px; }
  .project-grid { grid-template-columns: 1fr; }
  .project-copy, .project-card { padding: 26px; }
  .project-visual { padding: 20px; }
  .credential-grid { grid-template-columns: 1fr; gap: 20px; }
  .credential-link { padding: 26px; }
  .credential-media { max-width: 260px; align-self: center; padding: 20px; }
  .article-row { grid-template-columns: 1fr; gap: 12px; }

  .contact-actions { flex-direction: column; }
  .contact-actions .button { width: min(100%, 300px); }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; scroll-snap-type: none; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}
@media print {
  .site-header, #particles-js, .scroll-cue, .skip-link { display: none; }
  body { background: white; color: black; }
  .content-section { min-height: auto; padding: 24px 0; }
  .hero { min-height: auto; padding: 24px 0; }
}