/* Burger menu + full-screen overlay drawer.
 *
 * Pattern: top-right burger button (both desktop and mobile). Click →
 * full-viewport overlay fades in with big nav links centred. Close via
 * × in top-right or Escape key.
 */

/* ── Burger button ──────────────────────────── */

.burger {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 8px 4px;
  background: transparent;
  border: 0;
  cursor: pointer;
  font-family: var(--font-system);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text);
  transition: color 120ms ease;
}
.burger:hover { color: var(--magenta); }

.burger__icon {
  display: inline-block;
  width: 24px;
  height: 18px;
  position: relative;
}
.burger__icon::before,
.burger__icon::after,
.burger__icon span {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition: transform 200ms ease, opacity 160ms ease;
}
.burger__icon::before { top: 0; }
.burger__icon span { top: 50%; transform: translateY(-50%); }
.burger__icon::after { bottom: 0; }

/* ── Menu drawer (full-screen overlay) ───────── */

.menu-drawer {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(13, 13, 15, 0.98);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  display: flex;
  flex-direction: column;
}

.menu-drawer.is-open {
  opacity: 1;
  pointer-events: auto;
}

.menu-drawer__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--sp-4) var(--sp-5);
}

.menu-drawer__close {
  position: relative;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  /* The × glyph sits high in its em-box, so it never looked centred.
   * Hide it and draw the cross with two centred bars instead. */
  font-size: 0;
  color: var(--text);
  cursor: pointer;
  padding: 0;
  transition: background-color 120ms ease, border-color 120ms ease, color 120ms ease;
}
.menu-drawer__close::before,
.menu-drawer__close::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
}
.menu-drawer__close::before { transform: translate(-50%, -50%) rotate(45deg); }
.menu-drawer__close::after  { transform: translate(-50%, -50%) rotate(-45deg); }
.menu-drawer__close:hover {
  background: rgba(245, 245, 245, 0.06);
  border-color: var(--magenta);
  color: var(--magenta);
}

/* Body of the drawer, links centred vertically */
.menu-drawer__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0 clamp(24px, 6vw, 80px);
  max-width: 1080px;
  margin: 0 auto;
  width: 100%;
}

.menu-drawer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(8px, 1.5vh, 16px);
}

.menu-drawer__list li {
  border-bottom: 1px solid var(--border-subtle);
}

.menu-drawer__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: clamp(14px, 2.5vh, 24px) 0;
  font-family: var(--font-system);
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.15;
  color: var(--text);
  text-decoration: none;
  transition: color 200ms ease, padding-left 240ms cubic-bezier(0.2, 0, 0.2, 1);
}
.menu-drawer__link:hover {
  color: var(--magenta);
  padding-left: var(--sp-3);
}
.menu-drawer__link-num {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--muted);
  margin-left: var(--sp-4);
}

/* Prominent social-icons row in the drawer body */
.menu-drawer__social {
  display: flex;
  gap: var(--sp-3);
  margin-top: clamp(32px, 5vh, 56px);
}
.menu-drawer__social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  color: var(--muted);
  transition: color 120ms ease, border-color 120ms ease, background-color 120ms ease;
}
.menu-drawer__social a:hover {
  color: var(--magenta);
  border-color: var(--magenta);
  background: rgba(233, 30, 140, 0.06);
}
.menu-drawer__social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  display: block;
}

.menu-drawer__foot {
  padding: var(--sp-5);
  font-family: var(--font-system);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  text-align: left;
}

/* When drawer is open, prevent body scroll */
body.menu-open {
  overflow: hidden;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .menu-drawer { transition: none; }
  .menu-drawer__link { transition: none; }
}