/* ── Navigation ───────────────────────────────────────────────── */

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  padding: 14px clamp(18px, 4vw, 56px);
}

.nav__inner {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
  max-width: var(--container);
  margin-inline: auto;
  padding: 9px 12px 9px 14px;
  border-radius: 999px;
  background: linear-gradient(
    150deg,
    color-mix(in srgb, var(--color-neutral-100) 10%, transparent),
    color-mix(in srgb, var(--color-neutral-100) 3%, transparent)
  );
  backdrop-filter: blur(var(--blur)) saturate(170%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(170%);
  border: 1px solid var(--glass-border);
  box-shadow:
    var(--glass-hairline),
    0 10px 30px color-mix(in srgb, black 35%, transparent);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 16px;
  letter-spacing: 0.01em;
}

/* The logo art is a wordmark below a ring — crop to the ring for the mark */
.nav__mark {
  width: 38px;
  height: 38px;
  object-fit: contain;
  object-position: center 32%;
  transform: scale(1.5);
  transform-origin: center 32%;
  clip-path: inset(6% 12% 44% 12%);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
}

.nav__link {
  font-size: 14px;
  white-space: nowrap;
  color: color-mix(in srgb, var(--color-text) 74%, transparent);
  transition: color 200ms ease;
}

.nav__link:hover,
.nav__link[aria-current='true'] {
  color: var(--color-text);
}

.nav__toggle {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: 50%;
  color: var(--color-text);
  background: color-mix(in srgb, var(--color-neutral-100) 6%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 14%, transparent);
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.nav__toggle-icon,
.nav__toggle-icon::before,
.nav__toggle-icon::after {
  display: block;
  width: 17px;
  height: 1.5px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 260ms var(--ease-out), background-color 160ms ease;
}

.nav__toggle-icon::before,
.nav__toggle-icon::after {
  content: '';
  position: absolute;
}

.nav__toggle-icon::before {
  transform: translateY(-6px);
}

.nav__toggle-icon::after {
  transform: translateY(6px);
}

.nav__toggle[aria-expanded='true'] .nav__toggle-icon {
  background: transparent;
}

.nav__toggle[aria-expanded='true'] .nav__toggle-icon::before {
  transform: rotate(45deg);
}

.nav__toggle[aria-expanded='true'] .nav__toggle-icon::after {
  transform: rotate(-45deg);
}

@media (max-width: 860px) {
  .nav__toggle {
    display: inline-flex;
  }

  .nav__links {
    position: absolute;
    inset: calc(100% + 10px) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 10px;
    border-radius: 22px;
    background: linear-gradient(
      150deg,
      color-mix(in srgb, var(--color-surface) 97%, transparent),
      color-mix(in srgb, var(--color-bg) 97%, transparent)
    );
    backdrop-filter: blur(var(--blur)) saturate(170%);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(170%);
    border: 1px solid var(--glass-border);
    box-shadow:
      var(--glass-hairline),
      0 18px 44px color-mix(in srgb, black 46%, transparent);
    opacity: 0;
    transform: translateY(-8px);
    pointer-events: none;
    transition: opacity 220ms ease, transform 220ms var(--ease-out);
  }

  .nav__links.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav__link {
    padding: 13px 14px;
    border-radius: 14px;
    font-size: 15px;
  }

  .nav__link:hover {
    background: color-mix(in srgb, var(--color-neutral-100) 7%, transparent);
  }
}

@media (max-width: 420px) {
  .nav__cta {
    padding-inline: 14px;
  }

  .nav__brand span {
    display: none;
  }
}

/* ── Buttons ──────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  padding: 13px 24px;
  border-radius: 999px;
  white-space: nowrap;
  color: var(--color-text);
  transition:
    background 260ms ease,
    box-shadow 260ms ease;
}

.btn:hover {
  color: var(--color-text);
}

.btn--primary {
  border: 1px solid color-mix(in srgb, var(--color-accent) 60%, transparent);
  background: linear-gradient(
    150deg,
    color-mix(in srgb, var(--color-accent) 24%, transparent),
    color-mix(in srgb, var(--color-accent) 8%, transparent)
  );
  backdrop-filter: blur(var(--blur)) saturate(170%);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(170%);
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--color-neutral-100) 24%, transparent),
    0 14px 34px color-mix(in srgb, black 40%, transparent);
}

.btn--primary:hover {
  background: linear-gradient(
    150deg,
    color-mix(in srgb, var(--color-accent) 34%, transparent),
    color-mix(in srgb, var(--color-accent) 14%, transparent)
  );
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--color-neutral-100) 30%, transparent),
    0 18px 46px color-mix(in srgb, black 46%, transparent);
}

.btn--ghost {
  color: color-mix(in srgb, var(--color-text) 86%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 14%, transparent);
  background: color-mix(in srgb, var(--color-neutral-100) 6%, transparent);
  backdrop-filter: blur(var(--blur));
  -webkit-backdrop-filter: blur(var(--blur));
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-neutral-100) 16%, transparent);
}

.btn--ghost:hover {
  background: color-mix(in srgb, var(--color-neutral-100) 12%, transparent);
}

/* Compact accent pill — nav CTA and per-card repository links */
.btn--soft {
  font-size: 14px;
  padding: 10px 18px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 52%, transparent);
  background: color-mix(in srgb, var(--color-accent) 13%, transparent);
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--color-neutral-100) 18%, transparent);
}

.btn--soft:hover {
  background: color-mix(in srgb, var(--color-accent) 25%, transparent);
}

/* ── Tag & chip pills ─────────────────────────────────────────── */

.tags,
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.tag {
  font-size: 12px;
  padding: 5px 11px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 12%, transparent);
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

.chips {
  gap: 10px;
  margin: 0;
}

.chip {
  font-size: 13.5px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 12%, transparent);
  background: color-mix(in srgb, var(--color-neutral-100) 5%, transparent);
  color: color-mix(in srgb, var(--color-text) 82%, transparent);
}

/* ── Project thumbnail ────────────────────────────────────────── */

.thumb {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid color-mix(in srgb, var(--color-neutral-100) 9%, transparent);
  background: linear-gradient(
    150deg,
    color-mix(in srgb, var(--color-accent) 18%, transparent),
    color-mix(in srgb, var(--color-neutral-100) 3%, transparent)
  );
}

/* Faint grid, masked to a soft circle, behind the glyph */
.thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(color-mix(in srgb, var(--color-neutral-100) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--color-neutral-100) 6%, transparent) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(circle at 50% 50%, black, transparent 72%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black, transparent 72%);
}

.thumb__glyph {
  position: relative;
  z-index: 1;
  width: 76px;
  height: 76px;
  color: var(--color-accent-300);
  filter: drop-shadow(0 0 22px color-mix(in srgb, var(--color-accent) 55%, transparent));
}