/* ============================================================
   site.css — header/nav, hero, sections, projects, footer
   ============================================================ */

/* ---- Entrance animation ----------------------------------- */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0);    }
}
.anim-reveal {
  opacity: 0;
  animation: fadeSlideUp 0.55s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* ---- Header / nav ----------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(10px);
  -webkit-backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav {
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.nav__brand {
  font-family: var(--font-serif); font-weight: 600; font-size: 1.15rem;
  color: var(--text); text-decoration: none; letter-spacing: -0.01em;
  display: inline-flex; align-items: baseline; gap: 0.5ch;
}
.nav__brand:hover { text-decoration: none; }
.nav__brand .dot { color: var(--accent); }
.nav__links { display: flex; align-items: center; gap: 4px; list-style: none; }
.nav__links a {
  font-family: var(--font-sans); font-size: 0.92rem; font-weight: 500;
  color: var(--text-soft); padding: 0.5em 0.8em; border-radius: 8px;
  text-decoration: none; transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}
.nav__links a:hover { color: var(--text); background: var(--surface); }
.nav__links a[aria-current="page"] { color: var(--accent); font-weight: 600; }

.nav__actions { display: flex; align-items: center; gap: 6px; }
.icon-btn {
  display: inline-grid; place-items: center; width: 38px; height: 38px;
  border-radius: 9px; border: 1px solid var(--border); background: transparent;
  color: var(--text-soft); cursor: pointer; transition: background 0.15s, color 0.15s;
}
.icon-btn:hover { background: var(--surface); color: var(--text); }
.icon-btn svg { width: 18px; height: 18px; }
.theme-toggle .moon { display: none; }
:root[data-theme="dark"] .theme-toggle .moon,
:root[data-theme="dark"] .theme-toggle .sun { }

.nav__toggle { display: none; }

@media (max-width: 720px) {
  .nav__toggle { display: inline-grid; }
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 2px;
    background: var(--bg-elev); border-bottom: 1px solid var(--border);
    padding: 12px; box-shadow: var(--shadow-md);
    transform: translateY(-8px); opacity: 0; pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
  }
  .nav__links.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .nav__links a { padding: 0.75em 0.9em; }
}

/* ---- Hero -------------------------------------------------- */
.hero { padding-block: clamp(56px, 10vw, 128px); position: relative; overflow: hidden; }
.hero__grid {
  display: grid; grid-template-columns: 1fr; gap: 40px;
  align-items: center;
}
@media (min-width: 768px) {
  .hero__grid { grid-template-columns: 1fr auto; gap: 48px; }
}
.hero__inner { }
.hero__eyebrow { margin-bottom: 18px; }
.hero h1 { margin-bottom: 0.35em; }
.hero h1 .accent { color: var(--accent); }
.hero__lede {
  font-family: var(--font-serif); font-size: clamp(1.15rem, 2.4vw, 1.5rem);
  line-height: 1.5; color: var(--text-soft); max-width: 62ch; margin-bottom: 1.6em;
}
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.hero__meta {
  margin-top: 34px; display: flex; flex-wrap: wrap; gap: 8px 22px;
  font-size: 0.88rem; color: var(--text-faint); font-family: var(--font-sans);
}
.hero__meta span { display: inline-flex; align-items: center; gap: 0.5ch; }

/* Hero photo */
.hero__photo-wrap {
  display: flex; justify-content: center; align-items: center;
}
.hero__photo {
  width: 280px; height: auto;
  border-radius: 18px;
  border: 3px solid var(--accent);
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  object-fit: cover;
}
@media (max-width: 767px) {
  .hero__photo-wrap { order: -1; }
  .hero__photo { width: 200px; }
}

/* Subtle print-inspired rule motif behind hero */
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background-image: linear-gradient(var(--border) 1px, transparent 1px);
  background-size: 100% 34px; opacity: 0.35;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
          mask-image: linear-gradient(to bottom, transparent, #000 40%, transparent);
}

/* ---- Section headers -------------------------------------- */
.section-head { margin-bottom: 34px; max-width: 60ch; }
.section-head .eyebrow { display: block; margin-bottom: 10px; }
.section-head p { color: var(--text-soft); margin-top: 0.5em; }

/* ---- About ------------------------------------------------- */
.about { background: var(--surface); border-block: 1px solid var(--border); }
.about__grid { display: grid; grid-template-columns: 1fr; gap: 32px; }
.about__body { max-width: var(--measure); }
.about__body p { color: var(--text); margin-bottom: 1em; font-size: 1.05rem; }
@media (min-width: 860px) {
  .about__grid { grid-template-columns: 1.6fr 1fr; gap: 56px; }
}
.about__facts { display: flex; flex-direction: column; gap: 14px; }
.fact { display: flex; flex-direction: column; gap: 2px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.fact:last-child { border-bottom: 0; }
.fact__k { font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-faint); font-weight: 700; }
.fact__v { font-size: 1.05rem; color: var(--text); }

/* ---- Skills ------------------------------------------------ */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 24px; }
.skill-card {
  background: var(--bg-elev); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 2rem; box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.2s ease;
}
.skill-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.08), 0 4px 12px -4px rgba(0, 0, 0, 0.05);
  border-color: var(--border-strong);
}
.skill-card h3 { font-size: 1.05rem; margin-bottom: 12px; display: flex; align-items: center; gap: 0.5ch; }
.skill-card h3 .mark { color: var(--accent); font-family: var(--font-mono); font-size: 0.85em; }
.chip-row { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  font-family: var(--font-sans); font-size: 0.82rem; font-weight: 500;
  padding: 0.3em 0.66em; border-radius: 7px;
  background: var(--surface); color: var(--text-soft); border: 1px solid var(--border);
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

/* ---- Projects ---------------------------------------------- */
.work-tabs {
  display: flex; gap: 28px; margin: -10px 0 28px;
  border-bottom: 1px solid var(--border);
}
.work-tabs[hidden] { display: none; }
.work-tab {
  font-family: var(--font-sans); font-size: 1rem; font-weight: 600;
  color: var(--text-soft); background: none; border: 0; cursor: pointer;
  padding: 0 2px 12px; margin-bottom: -1px;
  border-bottom: 3px solid transparent;
  display: inline-flex; align-items: center; gap: 8px;
  transition: color 0.2s ease;
}
.work-tab:hover { color: var(--text-heading); }
.work-tab[aria-selected="true"] { color: var(--text-heading); border-bottom-color: var(--accent); }
.work-tab__count {
  font-size: 0.75rem; font-weight: 700; line-height: 1;
  padding: 0.3em 0.55em; border-radius: 999px;
  background: var(--surface); color: var(--text-soft); border: 1px solid var(--border);
}
.work-tab[aria-selected="true"] .work-tab__count { color: var(--accent); border-color: var(--accent); }
/* Phones: keep labels on one line and drop the counts so all tabs fit */
@media (max-width: 480px) {
  .work-tabs { gap: 18px; overflow-x: auto; scrollbar-width: none; }
  .work-tab { white-space: nowrap; font-size: 0.95rem; }
  .work-tab__count { display: none; }
}
/* Without JS every panel shows, so space them apart */
.projects-grid + .projects-grid { margin-top: 24px; }
.projects-grid[hidden] { display: none; }
/* After a tab switch, show cards at once instead of replaying the load-in fade */
.projects-grid.is-switched .anim-reveal { animation: none; opacity: 1; }
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
.project-card {
  display: flex; flex-direction: column; gap: 12px;
  background: var(--bg-elev); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 2rem; box-shadow: var(--shadow-sm);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              background-color 0.2s ease;
}
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px -10px rgba(0, 0, 0, 0.08), 0 4px 12px -4px rgba(0, 0, 0, 0.05);
  border-color: var(--border-strong);
}
.project-card__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.project-card__badge {
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent); white-space: nowrap;
  transition: color 0.2s ease;
}
.project-card h3 { font-size: 1.2rem; line-height: 1.25; }
.project-card p { color: var(--text); font-size: 0.96rem; flex: 1; }
.project-card__stack { display: flex; flex-wrap: wrap; gap: 6px; }
.project-card__stack .chip { font-size: 0.76rem; }
.project-card__links { display: flex; gap: 14px; font-size: 0.88rem; font-weight: 600; }

/* Featured project: spans the grid, video beside the details on wide screens */
.project-card--feature { grid-column: 1 / -1; display: grid; gap: 24px; padding: 1.25rem; }
.project-card--feature:hover { transform: none; }
.project-card__media video {
  display: block; width: 100%; aspect-ratio: 16 / 9;
  border-radius: 10px; background: #151515;
}
.project-card__body { display: flex; flex-direction: column; gap: 14px; }
.project-card__body p { flex: 0 1 auto; }
@media (min-width: 860px) {
  .project-card--feature { grid-template-columns: 1.3fr 1fr; align-items: center; gap: 32px; }
  .project-card__body { padding: 0.5rem 0.75rem 0.5rem 0; }
}
.project-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  padding-block: 12px; border-block: 1px solid var(--border);
}
.project-stat b {
  display: block; font-family: var(--font-serif); font-size: 1.3rem; line-height: 1.15;
  color: var(--accent); margin-bottom: 4px;
}
.project-stat span { display: block; font-size: 0.78rem; line-height: 1.4; color: var(--text-soft); }

/* ---- Contact / CTA ---------------------------------------- */
.cta { background: var(--surface); border-block: 1px solid var(--border); text-align: center; }
.cta__inner { max-width: 620px; margin-inline: auto; }
.cta h2 { margin-bottom: 0.4em; }
.cta p { color: var(--text-soft); margin-bottom: 1.6em; font-size: 1.1rem; }
.cta__links { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }

/* ---- Footer ------------------------------------------------ */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-elev); }
.footer-inner { padding-block: 40px; display: flex; flex-wrap: wrap; gap: 20px; justify-content: space-between; align-items: center; }
.footer-inner p { color: var(--text-faint); font-size: 0.88rem; }
.footer-links { display: flex; gap: 18px; }
.footer-links a { color: var(--text-soft); font-size: 0.88rem; font-weight: 500; }

/* ---- Certifications --------------------------------------- */
.certs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px 40px;
  align-items: start;
}
@media (min-width: 640px) { .certs-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .certs-grid { grid-template-columns: repeat(3, 1fr); } }
.cert-card {
  display: flex; flex-direction: column;
  background: var(--bg-elev); border: 1px solid var(--border-strong);
  border-radius: 6px; padding: 20px;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}
.cert-card:hover { border-color: var(--text-faint); }

/* Certificate scans are ~1.294:1 (US Letter landscape); 22/17 shows them uncropped */
.cert-card__thumb {
  display: block; width: 100%; aspect-ratio: 22 / 17;
  border: 1px solid var(--border-strong); border-radius: 0;
  overflow: hidden; background: transparent; padding: 0; cursor: pointer;
}
.cert-card__thumb img {
  width: 100%; height: 100%; object-fit: cover; object-position: top left;
  display: block;
}
.cert-card__thumb--empty {
  display: grid; place-items: center; cursor: default;
  background: color-mix(in srgb, var(--border) 35%, var(--bg-elev));
  border-style: dashed;
  color: var(--text-faint); font-size: 0.8rem; font-weight: 500;
}

.cert-card__name {
  font-family: var(--font-sans); font-size: 1.15rem; font-weight: 600;
  line-height: 1.35; color: var(--text-heading);
  margin: 24px 0 0;
}
.cert-card__links {
  display: flex; flex-wrap: wrap; gap: 4px 20px; margin-top: 10px;
}
.cert-card__link {
  font-family: var(--font-sans); font-size: 1rem; font-weight: 600;
  color: var(--accent); background: none; border: 0; padding: 0; cursor: pointer;
}
.cert-card__link:hover { text-decoration: underline; }
.cert-card__meta {
  font-size: 0.95rem; color: var(--text-soft); line-height: 1.5; margin: 0;
}
.cert-card__links + .cert-card__meta,
.cert-card__name + .cert-card__meta { margin-top: 12px; }
.cert-card__meta + .cert-card__meta { margin-top: 6px; }

/* ---- Cert lightbox ---------------------------------------- */
.cert-lightbox {
  position: fixed; inset: 0; z-index: 900;
  background: rgba(0,0,0,0.82);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.22s ease;
}
.cert-lightbox.is-open {
  opacity: 1; pointer-events: auto;
}
.cert-lightbox__box {
  background: var(--bg-elev); border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  max-width: 860px; width: 100%;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
  display: flex; flex-direction: column; gap: 0;
  overflow: hidden;
  transform: scale(0.94);
  transition: transform 0.22s ease;
}
.cert-lightbox.is-open .cert-lightbox__box { transform: scale(1); }

.cert-lightbox__close {
  position: absolute; top: 16px; right: 16px;
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--border); background: var(--bg-elev);
  color: var(--text); cursor: pointer; font-size: 1rem;
  display: grid; place-items: center;
  transition: background 0.15s, color 0.15s;
  z-index: 10;
}
.cert-lightbox__close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

.cert-lightbox__img {
  width: 100%; max-height: 70vh; object-fit: contain;
  background: #fff; display: block;
}
.cert-lightbox__meta {
  padding: 16px 20px 18px;
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 20px;
  border-top: 1px solid var(--border);
}
.cert-lightbox__title {
  font-weight: 700; font-size: 0.95rem; color: var(--text); margin: 0; flex: 1;
}
.cert-lightbox__date {
  font-size: 0.82rem; color: var(--text-faint); margin: 0;
}
.cert-lightbox__verify {
  font-size: 0.82rem; font-weight: 600; color: var(--accent);
  text-decoration: none; white-space: nowrap;
}
.cert-lightbox__verify:hover { text-decoration: underline; }

/* Side nav arrows */
.cert-lightbox__nav {
  position: fixed;
  top: 50%; transform: translateY(-50%);
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.08);
  color: #fff; font-size: 1.2rem; cursor: pointer;
  display: grid; place-items: center;
  transition: background 0.15s, border-color 0.15s;
  z-index: 910;
}
.cert-lightbox__nav:hover { background: var(--accent); border-color: var(--accent); }
.cert-lightbox__nav--prev { left: clamp(8px, 3vw, 32px); }
.cert-lightbox__nav--next { right: clamp(8px, 3vw, 32px); }

/* Bottom meta row */
.cert-lightbox__bottom {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px 16px; width: 100%;
}
.cert-lightbox__counter {
  font-size: 0.8rem; font-weight: 600;
  color: var(--text-faint); margin-left: auto;
}


.project-card__body p.project-card__credit { font-size: 0.72rem; line-height: 1.45; color: var(--text-soft); }
.project-card__credit a { color: inherit; text-decoration: underline; }