/* ============================================================
   PLANETARIUM GALLERY — planetarium.css
   Immersive 3D gallery overlay styles
   Uses Vivere tokens from styles.css (4px grid, --accent, etc.)
   ============================================================ */

/* --- Full viewport layout ----------------------------------- */
.planetarium-body {
  margin: 0;
  padding: 0;
  overflow: hidden;
  background: var(--void);
  min-height: 100vh;
  min-height: 100dvh;
}

.planetarium-main {
  position: fixed;
  inset: 0;
  z-index: 0;
}

#planetarium-canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* --- Nav overlay (4px grid, minimal) ------------------------ */
.planetarium-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-xl);
  background: linear-gradient(to bottom, rgba(5,5,16,0.6) 0%, transparent 100%);
  pointer-events: none;
}

.planetarium-nav a {
  pointer-events: auto;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: color 0.2s, background 0.2s;
}

.planetarium-nav a:hover {
  color: var(--accent);
  background: rgba(255,255,255,0.06);
}

.planetarium-nav__back {
  font-weight: 500;
}

.planetarium-nav__home {
  font-weight: 400;
  opacity: 0.85;
}

/* --- Hint (fades after interaction) ------------------------- */
.planetarium-hint {
  position: fixed;
  bottom: var(--space-2xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 5;
  padding: var(--space-sm) var(--space-lg);
  background: rgba(5,5,16,0.75);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  color: rgba(255,255,255,0.8);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  transition: opacity 0.4s var(--ease-out-expo);
}

.planetarium-hint--hidden {
  opacity: 0;
  pointer-events: none;
}

/* --- Detail overlay (Viewing the Print) --------------------- */
.planetarium-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(5,5,16,0.85);
  backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s, visibility 0.4s;
}

.planetarium-overlay--visible {
  opacity: 1;
  visibility: visible;
}

.planetarium-overlay__inner {
  max-width: 480px;
  padding: var(--space-3xl);
  text-align: center;
}

.planetarium-overlay__close {
  position: absolute;
  top: var(--space-xl);
  left: var(--space-xl);
  background: transparent;
  border: 1px solid rgba(255,255,255,0.2);
  color: rgba(255,255,255,0.9);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.planetarium-overlay__close:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(255,255,255,0.04);
}

.planetarium-overlay__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 600;
  color: var(--cream);
  margin-bottom: var(--space-md);
}

.planetarium-overlay__desc {
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
}

.planetarium-overlay__cta {
  display: inline-block;
}

/* Hover tooltip */
.planetarium-tooltip {
  position: fixed;
  z-index: 15;
  padding: var(--space-sm) var(--space-md);
  background: rgba(5,5,16,0.9);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-md);
  color: var(--cream);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s, transform 0.2s;
}
.planetarium-tooltip--visible {
  opacity: 1;
  transform: translateY(0);
}