/* ============================================================
   Nav bar, full-screen menu, sound toggle
   ============================================================ */
.nav { position: fixed; inset-inline: 0; top: 0; z-index: var(--z-nav); opacity: 0; transform: translateY(-12px); pointer-events: none; transition: opacity .9s var(--ease-out), transform .9s var(--ease-out), background-color .5s; }
.nav.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.nav.is-hidden { transform: translateY(-110%); }
.nav__bar { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; padding: 1.1rem var(--gutter); }
.nav.is-scrolled .nav__bar { padding-block: .7rem; }
.nav::before { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(11,7,9,.85), rgba(11,7,9,0)); opacity: 0; transition: opacity .5s; pointer-events: none; }
.nav.is-scrolled::before { opacity: 1; }
.nav__brand { position: relative; display: block; width: clamp(96px, 10vw, 132px); opacity: .92; transition: opacity .4s, transform .6s var(--ease-out); }
.nav__brand img { width: 100%; height: auto; mix-blend-mode: screen; filter: drop-shadow(0 0 10px rgba(214,74,124,.25)); }
.nav__brand:hover { opacity: 1; transform: scale(1.03); }
.nav.is-inside .nav__brand { width: clamp(84px, 8vw, 110px); }
.nav__links { display: flex; gap: clamp(1rem, 2.2vw, 2rem); font-size: .9rem; font-weight: 500; letter-spacing: .02em; }
.nav__links a { position: relative; padding: .3rem 0; color: var(--text-2); transition: color .3s; }
.nav__links a::after { content: ""; position: absolute; right: 0; bottom: 0; height: 1px; width: 100%; background: var(--pink); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease-out); }
.nav__links a:hover, .nav__links a.is-active { color: var(--ivory); }
.nav__links a:hover::after, .nav__links a.is-active::after { transform: scaleX(1); transform-origin: right; }
@media (max-width: 1080px) { .nav__links { display: none; } }
.nav__tools { display: flex; align-items: center; gap: 1rem; }
.nav__cta { min-height: 2.7rem; line-height: 2.7rem; padding-inline: 1.3rem; font-size: .9rem; }

.sound { display: inline-flex; align-items: center; gap: .6rem; padding: .45rem .8rem; border-radius: 999px; border: 1px solid var(--line); color: var(--text-2); font-size: .78rem; letter-spacing: .04em; transition: border-color .3s, color .3s; }
.sound:hover { color: var(--ivory); border-color: var(--line-strong); }
.sound__bars { display: inline-flex; align-items: flex-end; gap: 2px; height: 12px; }
.sound__bars i { width: 2px; height: 30%; background: currentColor; border-radius: 1px; transform-origin: bottom; transition: height .3s; }
.sound.is-on { color: var(--pink); border-color: rgba(255,143,187,.4); }
.sound.is-on .sound__bars i { animation: soundbar 1.1s var(--ease-in-out) infinite; }
.sound.is-on .sound__bars i:nth-child(2) { animation-delay: -.3s; } .sound.is-on .sound__bars i:nth-child(3) { animation-delay: -.6s; } .sound.is-on .sound__bars i:nth-child(4) { animation-delay: -.9s; }
@keyframes soundbar { 0%, 100% { height: 30%; } 50% { height: 100%; } }
@media (max-width: 720px) { .sound__label { display: none; } .sound { padding: .55rem .7rem; } }

.burger { display: inline-flex; align-items: center; gap: .6rem; padding: .4rem .2rem; color: var(--text-2); font-size: .8rem; letter-spacing: .12em; }
.burger__line { display: block; width: 22px; height: 1px; background: currentColor; transition: transform .5s var(--ease-out), opacity .3s; }
.burger__line + .burger__line { margin-inline-start: -22px; transform: translateY(6px); }
.burger[aria-expanded="true"] .burger__line:first-child { transform: rotate(45deg); }
.burger[aria-expanded="true"] .burger__line:last-child { transform: rotate(-45deg); }
.burger:hover { color: var(--ivory); }

.menu { position: fixed; inset: 0; z-index: var(--z-menu); visibility: hidden; }
.menu__bg { position: absolute; inset: 0; background: radial-gradient(120% 90% at 100% 0%, #24101b 0%, #0b0709 60%, #050304 100%); }
.menu__inner { position: relative; height: 100%; display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: 2rem; padding-top: 4rem; }
.menu__list { display: grid; gap: clamp(.2rem, 1.2vh, .8rem); }
/* menu links: Karantina 400, quieter than the 700 chapter lines at this size */
.menu__list a { display: flex; align-items: baseline; gap: 1.2rem; font-family: var(--font-display); font-weight: 400; font-size: clamp(2.2rem, 6.5vh, 4.6rem); line-height: 1; letter-spacing: var(--track-display); color: var(--ivory); transition: color .4s, transform .6s var(--ease-out); }
.menu__list a:hover, .menu__list a:focus-visible { color: var(--pink); transform: translateX(-10px); }
.menu__num { font-family: var(--font-kinetic); font-size: .95rem; letter-spacing: .1em; color: var(--magenta); font-weight: 400; }
.menu__aside { display: grid; gap: 1.6rem; justify-items: start; }
.menu__tag { font-family: var(--font-script); font-weight: 300; letter-spacing: .06em; font-size: clamp(1.8rem, 3vw, 2.6rem); color: var(--rose); }
.menu__contact { display: grid; gap: .6rem; color: var(--text-2); }
.menu__contact a:hover { color: var(--ivory); }
@media (max-width: 800px) { .menu__inner { grid-template-columns: 1fr; align-content: center; gap: 2.5rem; } .menu__list a { font-size: clamp(2rem, 8vw, 3rem); } .menu__aside { gap: 1rem; } }
body.menu-open .nav::before { opacity: 0; }

.lang { padding: .45rem .7rem; border-radius: 999px; border: 1px solid var(--line); color: var(--text-2); font-size: .75rem; letter-spacing: .12em; direction: ltr; transition: color .3s, border-color .3s; }
.lang:hover { color: var(--ivory); border-color: var(--line-strong); }