:root {
  --bg: #0b1021;
  --panel: rgba(14, 19, 40, 0.85);
  --text: #e7ecf5;
  --muted: #9aa6c0;
  --accent: #7dd3fc;
  --border: rgba(255, 255, 255, 0.07);
  --radius: 14px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Segoe UI', Tahoma, sans-serif;
  background: radial-gradient(circle at 15% 20%, rgba(125, 211, 252, 0.18), transparent 24%),
              radial-gradient(circle at 80% 10%, rgba(94, 234, 212, 0.14), transparent 26%),
              linear-gradient(135deg, #0b1021 0%, #0f162d 45%, #0b1021 100%);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  padding: 0 5vw 64px;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 30% 60%, rgba(255, 255, 255, 0.03), transparent 34%),
              linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-left: -5vw;
  margin-right: -5vw;
  padding: 18px 5vw;
  position: sticky;
  top: 0;
  background: rgba(5, 6, 8, 0.7);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  z-index: 2;
}

.brand {
  font-weight: 600;
  letter-spacing: 0.5px;
}

.site-nav {
  display: flex;
  gap: 20px;
  font-size: 0.95rem;
}

.nav-toggle {
  display: none;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 8px 12px;
  cursor: pointer;
  font-weight: 700;
}

.site-nav a {
  padding: 8px 10px;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav a:hover { background: rgba(255, 255, 255, 0.08); color: #f8fafc; }

.hero { padding: 64px 0 32px; position: relative; z-index: 1; text-align: center; }
.hero--split { display: grid; grid-template-columns: 1fr; gap: 28px; align-items: center; }

.hero__content { max-width: 1100px; width: 100%; margin: 0 auto; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 10px;
}

h1 { font-size: clamp(2.5rem, 4vw, 3.5rem); margin: 0 0 12px; }

h3 { margin: 0; }

h2 { margin: 0 0 12px; }

.lede { color: var(--muted); margin: 0 0 24px; max-width: 1100px; width: 100%; }

.subtitle { color: var(--muted); font-weight: 600; margin: 0 0 12px; }

.tagline { color: var(--accent); font-weight: 600; margin: 0 0 16px; }

.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

.button {
  display: inline-block;
  background: linear-gradient(135deg, #fcd34d, #f59e0b);
  color: #0b1224;
  padding: 12px 16px;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid transparent;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.button:hover { transform: translateY(-1px); box-shadow: 0 16px 40px rgba(245, 158, 11, 0.25); }

.button.ghost { background: transparent; color: var(--text); border-color: var(--border); box-shadow: none; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 16px 0;
  box-shadow: var(--shadow);
  position: relative;
  z-index: 1;
}

.panel__header { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 12px; }

.tab-legend { color: var(--muted); font-size: 0.9rem; }

.tabs { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }

.tab-grid { display: none; }

body[data-tab-mode="projects"] #project-grid { display: grid; }
body[data-tab-mode="projects"] #category-grid { display: none; }
body[data-tab-mode="categories"] #project-grid { display: none; }
body[data-tab-mode="categories"] #category-grid { display: grid; }

.tab-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  display: grid;
  gap: 10px;
}

.tab-card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: radial-gradient(circle at 30% 30%, rgba(125, 211, 252, 0.25), transparent 50%),
              linear-gradient(135deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
              rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 6px;
  background-clip: content-box;
}

.tab-card__title { font-weight: 600; }

.tab-card:hover { transform: translateY(-2px); border-color: rgba(251, 191, 36, 0.6); background: rgba(251, 191, 36, 0.06); }

.site-footer { text-align: center; color: var(--muted); margin-top: 36px; }

.page-wrapper { max-width: 960px; margin: 0 auto; padding: 32px 0 64px; }

.page-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; }

.breadcrumb { color: var(--muted); font-size: 0.95rem; }

.back-link { color: #7dd3fc; }

.content-block { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px; margin-top: 12px; box-shadow: var(--shadow); }

ul { padding-left: 20px; color: var(--muted); }

.stack { display: grid; gap: 10px; }

.intro-grid,
.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  align-items: start;
}

.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 600;
  color: var(--text);
}

.pill-list.soft .pill {
  background: rgba(125, 211, 252, 0.12);
  border-color: rgba(125, 211, 252, 0.25);
  color: #e0f2fe;
}

.tag-filter {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}
.tag-filter .update-note {
  margin: 6px 0 0 0;
}
.filter-block { padding-bottom: 4px; }
.tag-filter__groups {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  align-items: start;
  grid-auto-flow: dense;
}
.tag-filter__group {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px;
  display: grid;
  gap: 8px;
  align-self: start;
}
.tag-filter__label {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.01em;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0 12px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  height: 40px;
  line-height: 1.2;
}
.tag-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(125, 211, 252, 0.6);
}
.tag-chip.is-active,
.tag-chip[aria-pressed="true"] {
  background: linear-gradient(135deg, #7dd3fc, #22d3ee);
  color: #0b1224;
  border-color: transparent;
}

.media-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  height: 100%;
}

.media-card__frame {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-radius: 10px;
  border: 1px dashed rgba(255, 255, 255, 0.3);
  background: radial-gradient(circle at 30% 30%, rgba(125, 211, 252, 0.22), transparent 55%),
              linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.02));
  display: grid;
  place-items: center;
  text-align: center;
  color: var(--muted);
  padding: 14px;
}
.media-card__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: inherit;
  display: block;
}
.hero-frame {
  aspect-ratio: unset;
}
.media-card__frame.video,
.media-card__frame.document {
  padding: 0;
  border-style: solid;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.65);
}
.pdf-frame {
  aspect-ratio: unset;
  height: 100vh;
  min-height: 960px;
  background: transparent;
  border: 0;
}
.pdf-card {
  background: transparent;
  border: 0;
  padding: 0;
  box-shadow: none;
  display: flex;
  justify-content: center;
}
.sell-sheet-img {
  width: 100%;
  max-width: 820px;
  height: auto;
  display: block;
  border-radius: 10px;
  margin: 0 auto;
}
.media-card__frame.document {
  display: block;
  aspect-ratio: unset;
  height: 100vh;
  min-height: 900px;
}
.media-card__frame.video iframe,
.media-card__frame.document embed {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.media-card__frame.document object {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0;
  align-items: start;
}
.media-grid.masonry-grid {
  display: block;
  column-count: 2;
  column-gap: 12px;
}
.media-grid.masonry-grid .media-card {
  break-inside: avoid;
  display: block;
  margin: 0 0 12px;
  height: auto;
}
.media-grid.masonry-grid .media-card__frame {
  aspect-ratio: auto;
}
@media (max-width: 720px) {
  .media-grid.masonry-grid { column-count: 1; }
  .category-card.horizontal { grid-template-columns: 1fr; }
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.metric {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}

.metric__value { font-weight: 700; font-size: 1.35rem; color: #fcd34d; }
.metric__label { color: var(--muted); }

.video-embed {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.caption { color: var(--muted); font-size: 0.95rem; }

.sell-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.sell-panel {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 14px;
  font-weight: 600;
}

.downloads {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 12px;
}

/* PCB overlay sits behind content */
.pcb-overlay,
.pcb-canvas {
  display: none;
}

.update-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.hero__image {
  width: 100%;
  display: flex;
  justify-content: center;
}

.hero__image-placeholder,
.feature__image {
  width: 100%;
  min-height: 260px;
  border-radius: var(--radius);
  border: 1px dashed rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 20px;
}

.panel--feature {
  border-color: rgba(125, 211, 252, 0.25);
}

.feature-list { color: var(--text); padding-left: 20px; }
.feature__actions { margin: 12px 0 0; }

.focus-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.focus-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: grid;
  gap: 10px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.skill-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: grid;
  gap: 8px;
}

.footer-contact {
  margin-top: 8px;
  color: var(--muted);
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.contact-form {
  display: grid;
  gap: 12px;
}

.contact-form label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: 1px solid rgba(125, 211, 252, 0.7);
}

.contact-note {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}

.tab-switch {
  display: inline-flex;
  gap: 8px;
  margin: 0 0 12px;
  flex-wrap: wrap;
}

.tab-switch--bottom { margin-top: 16px; }

.tab-switch__btn {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 14px;
  cursor: pointer;
  font-weight: 600;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.tab-switch__btn:hover { transform: translateY(-1px); border-color: rgba(125, 211, 252, 0.6); }

.tab-switch__btn.is-active {
  background: linear-gradient(135deg, #7dd3fc, #22d3ee);
  color: #0b1224;
  border-color: transparent;
}

.category-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.category-cards.masonry {
  display: block;
  column-count: 2;
  column-gap: 12px;
}
.category-cards.masonry .category-card {
  break-inside: avoid;
  margin: 0 0 12px;
  height: auto;
}
.category-cards.masonry .category-card__images {
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
@media (max-width: 720px) {
  .category-cards.masonry { column-count: 1; }
}

.category-card {
  display: grid;
  gap: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.category-card:hover { transform: translateY(-2px); border-color: rgba(125, 211, 252, 0.6); background: rgba(125, 211, 252, 0.05); }
.category-card.horizontal {
  grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
  align-items: center;
  grid-template-areas: "copy image";
}
.category-card__copy {
  display: grid;
  gap: 6px;
}
.category-card.horizontal .category-card__copy {
  grid-area: copy;
}
.category-card.horizontal .category-card__images {
  grid-area: image;
  grid-template-columns: 1fr;
  justify-self: end;
  width: 100%;
}
.category-card.horizontal .category-card__img {
  aspect-ratio: 4 / 3;
  min-height: 320px;
  width: 100%;
}
.category-card.featured {
  background: linear-gradient(135deg, rgba(13, 16, 36, 0.95), rgba(9, 12, 28, 0.92));
  border-color: rgba(125, 211, 252, 0.4);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
}
.category-card.featured .category-card__images {
  grid-template-columns: 1fr;
}
.category-card.featured .category-card__img {
  min-height: 200px;
  border: 1px solid rgba(125, 211, 252, 0.35);
}

.category-card__title { font-weight: 700; font-size: 1.05rem; }

.category-card__images {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.category-card__img {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02));
  border: 1px solid var(--border);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

@media (max-width: 768px) {
  body { padding: 0 18px 56px; }
  .site-header { margin-left: -18px; margin-right: -18px; padding: 16px 18px; position: sticky; top: 0; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 64px;
    flex-direction: column;
    background: rgba(5, 6, 8, 0.95);
    padding: 12px 18px;
    gap: 10px;
    display: none;
  }
  body.nav-open .site-nav { display: flex; }
  .panel__header { flex-direction: column; align-items: flex-start; }
  .hero--split { grid-template-columns: 1fr; }
}