/* ============================================================
   sidebar.css — Right sidebar navigation styles
   ============================================================ */

/* ——— Sidebar container (positions the panel and edge line) ——— */
.sidebar {
  position: fixed;
  right: 0;
  top: 0;
  height: 100%;
  z-index: 200;
  pointer-events: none; /* children re-enable as needed */
}

/* ——— 2px indicator line: always visible, far right edge ——— */
.sidebar-edge {
  position: fixed;
  right: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: rgba(255, 255, 255, 0.3);
  pointer-events: none;
  z-index: 201;
}

/* ——— Sliding panel ——— */
.sidebar-panel {
  position: fixed;
  right: 0;
  top: 0;
  width: var(--sidebar-width);
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-left: 1px solid rgba(255, 255, 255, 0.08);

  /* Default: hidden off-screen to the right */
  transform: translateX(var(--sidebar-width));
  transition: transform 0.4s ease-out;
  z-index: 200;
  pointer-events: all;
  overflow: visible; /* allows expanded logo to bleed outside panel bounds */

  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 40px;
  padding-bottom: 24px;
}

.sidebar-panel.open {
  transform: translateX(0);
}

/* ——— Logo + brand name ——— */
.sidebar-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 48px;
  overflow: visible; /* allow hover-expanded logo to escape header bounds */
}

.sidebar-logo {
  width: 52px;
  height: 52px;
  object-fit: contain;
  /* Crops to the central lens/lettering ring */
  clip-path: circle(38% at 50% 47%);
  filter: grayscale(100%) brightness(0.9);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}

/* Hover: expand reveal + restore color + scale up to ~110px */
.sidebar-logo:hover {
  clip-path: circle(70% at 50% 47%);
  filter: grayscale(0%) brightness(1) drop-shadow(0 0 12px rgba(180, 30, 30, 0.3));
  transform: scale(2.115); /* 110 / 52 ≈ 2.115 — avoids layout shift */
}

.sidebar-brand {
  font-family: var(--font-body);
  font-size: 9px;
  font-weight: 300;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--color-text);
  opacity: 0.5;
  text-align: center;
}

/* ——— Navigation links ——— */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
  flex: 1;
}

.sidebar-link {
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-text);
  opacity: 0.7;
  position: relative;
  transition: opacity var(--transition-fast);
}

/* Animated underline: slides in from left on hover */
.sidebar-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-text);
  transition: width var(--transition-fast);
}

.sidebar-link:hover {
  opacity: 1;
}
.sidebar-link:hover::after {
  width: 100%;
}

/* Active page: always full opacity + visible underline */
.sidebar-link.active {
  opacity: 1;
}
.sidebar-link.active::after {
  width: 100%;
}

/* ——— Copyright footer ——— */
.sidebar-copy {
  font-family: var(--font-body);
  font-size: 8px;
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--color-text);
  opacity: 0.3;
  text-align: center;
  padding: 0 12px;
}