/* drawer.css — Mobile fullscreen drawer */

.drawer {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  z-index: var(--z-drawer);
  background: var(--ink);
  transform: translateX(100%);
  transition: transform var(--dur-slow) var(--ease);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
}

.drawer.is-open { transform: translateX(0); }

/* ── header ── */
.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding-inline: var(--side-pad);
  border-bottom: 1px solid var(--paper-faint);
  flex-shrink: 0;
  width: 100%;
  box-sizing: border-box;
}

.drawer__close {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border: 1px solid var(--paper-faint);
  border-radius: var(--r-sm);
  color: var(--paper);
  transition: border-color var(--dur-base) var(--ease);
}

.drawer__close:hover { border-color: var(--paper); }

/* ── body ── */
.drawer__body {
  flex: 1;
  padding: var(--sp-8) var(--side-pad);
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
  overflow-y: auto;
}

/* ── section ── */
.drawer__section {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.drawer__section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--paper-dim);
  padding: var(--sp-1) var(--sp-2);
  margin-bottom: var(--sp-1);
}

/* ── links ── */
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-2);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--paper);
  border-radius: var(--r-sm);
  opacity: 0;
  transform: translateX(20px);
  transition:
    opacity 350ms var(--ease),
    transform 350ms var(--ease),
    color var(--dur-base) var(--ease),
    background var(--dur-base) var(--ease);
  /* delay driven by --i custom property */
  transition-delay: calc(80ms + var(--i, 0) * 35ms);
}

.drawer.is-open .drawer__link {
  opacity: 1;
  transform: translateX(0);
}

.drawer__link:hover {
  color: var(--accent);
  background: var(--paper-faint);
}

.drawer__link.is-active { color: var(--accent); }

.drawer__link-idx {
  font-family: var(--font-mono);
  font-size: var(--type-micro);
  color: var(--paper-dim);
  letter-spacing: 0.1em;
}

/* ── footer ── */
.drawer__foot {
  padding: var(--sp-6) var(--side-pad) var(--sp-8);
  border-top: 1px solid var(--paper-faint);
  flex-shrink: 0;
}

/* ── only show on mobile ── */
@media (min-width: 1101px) {
  .drawer { display: none; }
}