/* ============================================================
   FULLSCREEN OVERLAY MENU
   Dark panel slides from top, staggered nav reveal,
   left info column, huge nav links on the right.
   ============================================================ */

.menu {
  position: fixed;
  inset: 0;
  z-index: var(--z-menu);
  visibility: hidden;
  pointer-events: none;
}

/* Sliding dark panel */
.menu__panel {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, #0a0a0f 0%, #050505 100%);
  transform: translateY(-100%);
  transition: transform var(--t-med) var(--ease-in-out);
}
.menu__panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--grad-aurora);
  opacity: 0.4;
  filter: blur(30px);
  pointer-events: none;
}
.menu__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  transition: opacity var(--t-med) var(--ease);
}

/* Active state */
body.menu-open .menu {
  visibility: visible;
  pointer-events: auto;
}
body.menu-open .menu__panel {
  transform: translateY(0);
}
body.menu-open .menu__overlay {
  opacity: 1;
}

/* Inner layout */
.menu__inner {
  position: relative;
  height: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: calc(var(--nav-h) + var(--space-6)) var(--space-6) var(--space-7);
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: var(--space-8);
  align-items: center;
}

/* Close button (top-right inside menu) — icon-only */
.menu__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-6);
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  background: var(--glass);
  color: var(--text);
  opacity: 0;
  transform: translateY(-10px);
  transition: opacity var(--t-fast) var(--ease) 0.25s, transform var(--t-fast) var(--ease) 0.25s,
    border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.menu__close:hover {
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.08);
}
.menu__close svg {
  width: 20px;
  height: 20px;
  transition: transform var(--t-med) var(--ease);
}
.menu__close:hover svg {
  transform: rotate(90deg);
}
body.menu-open .menu__close {
  opacity: 1;
  transform: translateY(0);
}

/* ---- LEFT info column ---- */
.menu__left {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity var(--t-med) var(--ease) 0.45s, transform var(--t-med) var(--ease) 0.45s;
}
body.menu-open .menu__left {
  opacity: 1;
  transform: translateX(0);
}
.menu__intro {
  color: var(--text-secondary);
  max-width: 34ch;
  font-size: 1.02rem;
}
.menu__contacts {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.menu__contact {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.menu__contact span {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.menu__contact a,
.menu__contact strong {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text);
  width: fit-content;
  transition: color var(--t-fast) var(--ease);
}
.menu__contact a:hover {
  color: var(--accent);
}
.menu__meta {
  display: flex;
  gap: var(--space-6);
  flex-wrap: wrap;
}

/* ---- RIGHT nav links ---- */
.menu__nav {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
}
.menu__link {
  position: relative;
  font-size: clamp(2.8rem, 9vw, 7.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 0.2rem 0;
  /* staggered entrance */
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out),
    letter-spacing var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}
body.menu-open .menu__link {
  opacity: 1;
  transform: translateY(0);
  transition-delay: var(--i, 0s);
}
.menu__link__index {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  align-self: flex-start;
  margin-top: 0.6rem;
}
/* hover: gradient fill + glow + underline + spacing */
.menu__link__text {
  position: relative;
  background-image: var(--grad-text);
  background-size: 100% 100%;
  background-position: 0 0;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  filter: brightness(0.75);
  transition: filter var(--t-fast) var(--ease), text-shadow var(--t-fast) var(--ease);
}
.menu__link__text::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.08em;
  height: 3px;
  width: 100%;
  background: var(--grad-accent);
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--t-med) var(--ease);
}
.menu__link:hover,
.menu__link:focus-visible {
  letter-spacing: -0.01em;
}
.menu__link:hover .menu__link__text,
.menu__link:focus-visible .menu__link__text {
  filter: brightness(1.15) drop-shadow(0 0 24px rgba(59, 130, 246, 0.5));
}
.menu__link:hover .menu__link__text::after,
.menu__link:focus-visible .menu__link__text::after {
  transform: scaleX(1);
  transform-origin: left;
}
/* current page marker */
.menu__link[aria-current="page"] .menu__link__text {
  filter: brightness(1.1);
}
.menu__link[aria-current="page"] .menu__link__index {
  color: var(--accent);
}

/* ============================================================
   RESPONSIVE MENU
   ============================================================ */
@media (max-width: 900px) {
  .menu__inner {
    grid-template-columns: 1fr;
    align-content: start;
    align-items: start;
    gap: var(--space-6);
    padding-top: calc(max(12px, env(safe-area-inset-top, 0px)) + var(--nav-h) + var(--space-4));
    padding-bottom: calc(env(safe-area-inset-bottom, 16px) + var(--space-7));
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  .menu__close {
    top: calc(max(12px, env(safe-area-inset-top, 0px)) + var(--space-4));
    right: var(--space-5);
  }
  .menu__nav {
    align-items: flex-start;
    order: -1;
    gap: var(--space-2);
    padding-top: var(--space-3);
    padding-right: calc(48px + var(--space-3));
  }
  .menu__link {
    font-size: clamp(2.35rem, 11.5vw, 4.1rem);
    line-height: 1.05;
    padding: 0.12rem 0;
  }
  .menu__left {
    order: 1;
  }
}
@media (max-width: 720px) {
  .menu__panel {
    min-height: 100dvh;
    min-height: 100svh;
    padding-top: max(12px, env(safe-area-inset-top, 0px));
    box-sizing: border-box;
  }
  .menu__inner {
    height: auto;
    padding-top: 3.25rem;
    gap: var(--space-6);
  }
  .menu__nav {
    gap: var(--space-2);
    padding-top: var(--space-2);
  }
  .menu__link:first-child {
    margin-top: 0;
  }
  .menu__link {
    font-size: clamp(2.25rem, 11vw, 3.85rem);
  }
}
@media (max-width: 560px) {
  .menu__link__index {
    display: none;
  }
  .menu__meta {
    gap: var(--space-4);
  }
}
@media (max-height: 720px) and (min-width: 900px) {
  .menu__link {
    font-size: clamp(2.4rem, 7vw, 5rem);
  }
}

/* ============================================================
   CUSTOM CURSOR (desktop / fine pointer only)
   ============================================================ */
.cursor-dot,
.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: var(--z-cursor);
  mix-blend-mode: difference;
  opacity: 0;
  transition: opacity 0.3s ease;
}
.cursor-dot {
  width: 7px;
  height: 7px;
  background: #fff;
  transform: translate(-50%, -50%);
}
.cursor-ring {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  transform: translate(-50%, -50%);
  transition: width 0.25s var(--ease), height 0.25s var(--ease),
    border-color 0.25s var(--ease), opacity 0.3s ease, background 0.25s var(--ease);
}
body.cursor-ready .cursor-dot,
body.cursor-ready .cursor-ring {
  opacity: 1;
}
body.cursor-hover .cursor-ring {
  width: 64px;
  height: 64px;
  border-color: var(--accent);
  background: rgba(0, 229, 255, 0.08);
}
body.cursor-hover .cursor-dot {
  opacity: 0;
}

/* Hide native cursor only when custom cursor active */
@media (pointer: fine) {
  body.cursor-ready {
    cursor: none;
  }
  body.cursor-ready a,
  body.cursor-ready button,
  body.cursor-ready input,
  body.cursor-ready textarea {
    cursor: none;
  }
}
/* Disable custom cursor on touch */
@media (pointer: coarse) {
  .cursor-dot,
  .cursor-ring {
    display: none;
  }
}