/* ═══════════════════════════════════════════════════════════
   projectNav.css — Fixed left sidebar project logo navigation
   ═══════════════════════════════════════════════════════════ */

.project-nav {
  position: fixed;
  left: var(--space-6);
  top: 50%;
  transform: translateY(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

/* ─────────────────────────────────────────────
   EACH LOGO ITEM
───────────────────────────────────────────── */
.project-nav__item {
  position: relative;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.project-nav__logo {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  border: 1.5px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition:
    transform 0.3s var(--ease-out-expo),
    border-color 0.3s ease,
    box-shadow 0.3s ease,
    background 0.3s ease;
  cursor: pointer;
}

.project-nav__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  padding: 0;
  position: absolute;
  inset: 0;
}

.project-nav__fallback {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text-secondary);
  transition: color 0.3s ease;
  position: relative;
  z-index: 1;
}

/* Hide fallback letters when image loads successfully */
.project-nav__logo:has(img[src]:not([src=""])) .project-nav__fallback {
  display: none;
}

/* ─────────────────────────────────────────────
   ACTIVE STATE — current project
───────────────────────────────────────────── */
.project-nav__item.is-active .project-nav__logo {
  border-color: var(--color-accent);
  background: rgba(255, 255, 255, 0.1);
  box-shadow: 0 0 20px rgba(243, 231, 217, 0.15);
  transform: scale(1.12);
}

.project-nav__item.is-active .project-nav__fallback {
  color: var(--color-accent);
}

/* Per-project accent on active */
.project-nav__item[data-project="maxxfitness"].is-active .project-nav__logo {
  border-color: #F5A623;
  box-shadow: 0 0 20px rgba(245, 166, 35, 0.25);
}
.project-nav__item[data-project="petmaster"].is-active .project-nav__logo {
  border-color: #4A90D9;
  box-shadow: 0 0 20px rgba(74, 144, 217, 0.25);
}
.project-nav__item[data-project="couzllectors"].is-active .project-nav__logo {
  border-color: #FF3C38;
  box-shadow: 0 0 20px rgba(255, 60, 56, 0.25);
}

/* ─────────────────────────────────────────────
   HOVER
───────────────────────────────────────────── */
.project-nav__item:hover .project-nav__logo {
  transform: scale(1.08);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(255, 255, 255, 0.1);
}

.project-nav__item.is-active:hover .project-nav__logo {
  transform: scale(1.15);
}

/* ─────────────────────────────────────────────
   TOOLTIP
───────────────────────────────────────────── */
.project-nav__tooltip {
  position: absolute;
  left: calc(100% + 12px);
  white-space: nowrap;
  background: rgba(20, 20, 22, 0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-text-primary);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: var(--tracking-wide);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.project-nav__item:hover .project-nav__tooltip {
  opacity: 1;
  transform: translateX(0);
}

/* ─────────────────────────────────────────────
   CONNECTOR LINE between items
───────────────────────────────────────────── */
.project-nav__item:not(:last-child)::after {
  content: '';
  position: absolute;
  bottom: calc(-1 * var(--space-4) / 2 - 8px);
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: calc(var(--space-4) - 4px);
  background: rgba(255, 255, 255, 0.08);
}

/* ─────────────────────────────────────────────
   HIDE on mobile
───────────────────────────────────────────── */
@media (max-width: 768px) {
  .project-nav {
    display: none;
  }
}