:root {
  --ink: #070a10;
  --ink-soft: #0d121b;
  --paper: #f4efe5;
  --muted: #aaa69e;
  --gold: #d7ad5a;
  --gold-bright: #f3cf7a;
  --cyan: #30d9df;
  --magenta: #e840a4;
  --line: rgba(215, 173, 90, .32);
  --serif: "Bodoni 72", Didot, "Iowan Old Style", Georgia, serif;
  --sans: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--ink); }
body {
  margin: 0;
  color: var(--paper);
  background:
    radial-gradient(circle at 90% 45%, rgba(35, 206, 219, .06), transparent 26rem),
    var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; }
::selection { color: #070a10; background: var(--gold-bright); }

.skip-link {
  position: fixed;
  top: .75rem;
  left: .75rem;
  z-index: 100;
  padding: .65rem 1rem;
  color: var(--ink);
  background: var(--paper);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 5.5rem;
  padding: 1.2rem clamp(1.25rem, 4vw, 4.5rem);
  border-bottom: 1px solid transparent;
  transition: background .35s ease, border-color .35s ease, min-height .35s ease;
}
.site-header.scrolled {
  min-height: 4.5rem;
  background: rgba(7, 10, 16, .88);
  border-color: rgba(215, 173, 90, .16);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: .85rem; }
.brand-mark {
  position: relative;
  display: grid;
  width: 1.85rem;
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}
.brand-mark::before,
.brand-mark::after { content: ""; position: absolute; background: var(--gold); opacity: .8; }
.brand-mark::before { width: 160%; height: 1px; }
.brand-mark::after { width: 1px; height: 160%; }
.brand-mark i { width: .38rem; aspect-ratio: 1; background: var(--cyan); box-shadow: 0 0 12px var(--cyan); }
.brand-name {
  font-family: var(--serif);
  font-size: 1.18rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.site-nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2.5rem); }
.site-nav a { position: relative; font-size: .77rem; letter-spacing: .16em; text-transform: uppercase; }
.site-nav a:not(.nav-accent)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -.5rem;
  left: 0;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .25s ease;
}
.site-nav a:hover::after,
.site-nav a:focus-visible::after { transform: scaleX(1); transform-origin: left; }
.nav-accent { padding: .7rem 1rem; border: 1px solid var(--gold); }
.menu-toggle { display: none; }

.hero {
  position: relative;
  display: grid;
  min-height: 100svh;
  align-items: center;
  isolation: isolate;
  overflow: hidden;
}
.hero-image,
.hero-shade { position: absolute; inset: 0; }
.hero-image {
  z-index: -3;
  background: url("/assets/sosnoviy-bereg-hero.webp") 64% center / cover no-repeat;
  transform: scale(1.015);
  animation: hero-in 1.8s cubic-bezier(.2, .7, .2, 1) both;
}
.hero-shade {
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(5, 8, 14, .97) 0%, rgba(5, 8, 14, .82) 32%, rgba(5, 8, 14, .22) 68%, rgba(5, 8, 14, .2) 100%),
    linear-gradient(0deg, rgba(5, 8, 14, .82), transparent 34%);
}
.deco-frame {
  position: absolute;
  z-index: -1;
  inset: 6.3rem clamp(1.2rem, 3vw, 3.3rem) 2.3rem;
  border: 1px solid rgba(215, 173, 90, .35);
  pointer-events: none;
}
.deco-frame::before,
.deco-frame::after,
.deco-frame span::before,
.deco-frame span::after {
  content: "";
  position: absolute;
  width: 1.1rem;
  aspect-ratio: 1;
  border: 1px solid var(--gold);
  background: var(--ink);
  transform: rotate(45deg);
}
.deco-frame::before { top: -.6rem; left: -.6rem; }
.deco-frame::after { top: -.6rem; right: -.6rem; }
.deco-frame span::before { bottom: -.6rem; left: -.6rem; }
.deco-frame span::after { right: -.6rem; bottom: -.6rem; }
.hero-content { width: min(48rem, 84vw); margin-left: clamp(2rem, 9vw, 10rem); padding-top: 5rem; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin: 0 0 1.4rem;
  color: #dad5ca;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .24em;
  line-height: 1.4;
  text-transform: uppercase;
}
.eyebrow > span { width: 2.2rem; height: 1px; background: var(--cyan); box-shadow: 0 0 12px rgba(48, 217, 223, .7); }
.eyebrow.gold { color: var(--gold-bright); }
.eyebrow.cyan { color: var(--cyan); }
h1, h2, h3, p { text-wrap: pretty; }
h1, h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -.035em;
  line-height: .86;
}
h1 { font-size: clamp(4.5rem, 10vw, 10rem); text-transform: uppercase; }
h1 span { display: block; }
h1 span:last-child { margin-left: clamp(1.4rem, 7vw, 7rem); color: transparent; -webkit-text-stroke: 1px var(--gold-bright); text-shadow: 0 0 32px rgba(215, 173, 90, .13); }
.hero-lead { margin: 2.1rem 0 0 clamp(0rem, 7vw, 7rem); color: #ded9cf; font-size: clamp(1rem, 1.5vw, 1.25rem); }
.hero-actions { display: flex; align-items: center; gap: 2rem; margin: 2.2rem 0 0 clamp(0rem, 7vw, 7rem); }
.button { display: inline-flex; min-height: 3.25rem; align-items: center; justify-content: center; padding: .7rem 1.5rem; font-size: .73rem; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.button-primary { color: var(--ink); background: var(--gold-bright); box-shadow: 0 0 0 1px rgba(243, 207, 122, .15), 0 12px 36px rgba(215, 173, 90, .15); transition: background .2s ease, transform .2s ease; }
.button-primary:hover, .button-primary:focus-visible { background: #ffe0a0; transform: translateY(-2px); }
.text-link { padding: .7rem 0; border-bottom: 1px solid rgba(244, 239, 229, .36); font-size: .8rem; letter-spacing: .08em; }
.text-link span { margin-left: .5rem; color: var(--cyan); }
.hero-status { position: absolute; bottom: 3.5rem; left: clamp(2rem, 9vw, 10rem); display: flex; align-items: center; gap: .75rem; color: #aaa69e; font-size: .67rem; letter-spacing: .2em; text-transform: uppercase; }
.status-line { width: 2.5rem; height: 1px; background: linear-gradient(90deg, var(--magenta), var(--cyan)); box-shadow: 0 0 12px rgba(48, 217, 223, .6); }
.hero-index { position: absolute; right: clamp(2rem, 5vw, 5rem); bottom: 3rem; margin: 0; color: rgba(244, 239, 229, .45); font-family: var(--serif); font-size: .7rem; letter-spacing: .22em; writing-mode: vertical-rl; }

.section { position: relative; width: min(90rem, 100%); margin: 0 auto; padding: clamp(6rem, 12vw, 11rem) clamp(1.5rem, 7vw, 7rem); }
.section-number { position: absolute; top: clamp(3rem, 7vw, 6rem); right: clamp(1.5rem, 4vw, 4rem); color: transparent; font-family: var(--serif); font-size: clamp(5rem, 10vw, 10rem); line-height: 1; -webkit-text-stroke: 1px rgba(215, 173, 90, .12); }
.concept { display: grid; grid-template-columns: minmax(18rem, .9fr) minmax(20rem, 1fr); gap: clamp(4rem, 9vw, 10rem); align-items: start; }
h2 { font-size: clamp(3.5rem, 7vw, 7rem); }
h2 em { color: var(--gold-bright); font-weight: 400; }
.concept-copy { padding-top: 4.5rem; color: var(--muted); }
.lead-copy { color: var(--paper); font-family: var(--serif); font-size: clamp(1.45rem, 2.2vw, 2rem); line-height: 1.35; }
.micro-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 3rem; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.micro-grid span { padding: 1rem .5rem; color: var(--gold-bright); font-size: .65rem; letter-spacing: .16em; text-align: center; text-transform: uppercase; }
.micro-grid span + span { border-left: 1px solid var(--line); }

.evening { border-top: 1px solid rgba(215, 173, 90, .12); }
.evening-head { max-width: 56rem; margin-bottom: 5rem; }
.acts { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.act { min-height: 20rem; padding: 2.2rem clamp(1.3rem, 3vw, 3rem); background: linear-gradient(180deg, rgba(255,255,255,.025), transparent); }
.act + .act { border-left: 1px solid var(--line); }
.act-no { display: block; margin-bottom: 4rem; color: var(--gold); font-family: var(--serif); font-size: 1.5rem; }
.act-label { margin: 0 0 .6rem; color: var(--cyan); font-size: .65rem; letter-spacing: .22em; text-transform: uppercase; }
.act h3 { margin: 0 0 .8rem; font-family: var(--serif); font-size: clamp(1.55rem, 2.2vw, 2.25rem); font-weight: 400; line-height: 1.1; }
.act p:last-child { max-width: 22rem; margin: 0; color: var(--muted); }

.atmosphere { position: relative; display: grid; min-height: 80svh; place-items: center; isolation: isolate; overflow: hidden; }
.atmosphere-image, .atmosphere-overlay { position: absolute; inset: 0; }
.atmosphere-image { z-index: -3; background: url("/assets/sosnoviy-bereg-hero.webp") 75% 62% / cover no-repeat; transform: scale(1.08); filter: saturate(.82) contrast(1.08); }
.atmosphere-overlay { z-index: -2; background: linear-gradient(90deg, rgba(7,10,16,.92), rgba(7,10,16,.52) 60%, rgba(7,10,16,.76)), linear-gradient(0deg, var(--ink), transparent 25%, transparent 75%, var(--ink)); }
.atmosphere-content { width: min(72rem, 86vw); }
.atmosphere-content h2 { max-width: 60rem; }
.atmosphere-content p:last-child { max-width: 38rem; margin: 2rem 0 0 18%; color: #d5d0c6; font-size: clamp(1rem, 1.4vw, 1.2rem); }
.neon-orbit { position: absolute; right: -12rem; bottom: -15rem; z-index: -1; width: 38rem; aspect-ratio: 1; border: 1px solid rgba(48, 217, 223, .38); border-radius: 50%; box-shadow: 0 0 45px rgba(48, 217, 223, .09), inset 0 0 45px rgba(232, 64, 164, .06); }

.opening { display: grid; min-height: 48rem; place-items: center; text-align: center; }
.opening-inner { position: relative; z-index: 1; }
.opening-inner .eyebrow { justify-content: center; }
.opening-inner h2 { font-size: clamp(5rem, 12vw, 12rem); text-transform: uppercase; }
.opening-inner p:last-child { margin: 2rem auto 0; color: var(--muted); }
.opening-ornament { position: absolute; width: min(55rem, 78vw); aspect-ratio: 2/1; border: 1px solid rgba(215, 173, 90, .26); transform: rotate(-3deg); }
.opening-ornament::before, .opening-ornament::after, .opening-ornament span::before, .opening-ornament span::after { content: ""; position: absolute; inset: 1rem; border: 1px solid rgba(48, 217, 223, .12); }
.opening-ornament::after { inset: 2rem; border-color: rgba(232, 64, 164, .1); }
.opening-ornament span::before { inset: 3rem; border-color: rgba(215, 173, 90, .18); }
.opening-ornament span::after { inset: 50%; width: .5rem; height: .5rem; background: var(--cyan); border: 0; box-shadow: 0 0 22px var(--cyan); transform: rotate(45deg); }
.opening-note { position: absolute; right: clamp(1.5rem, 4vw, 4rem); bottom: 3rem; margin: 0; color: rgba(244, 239, 229, .3); font-family: var(--serif); font-size: .7rem; letter-spacing: .25em; text-transform: uppercase; }

.site-footer { display: grid; grid-template-columns: 1fr auto auto; gap: 2rem; align-items: center; padding: 2.2rem clamp(1.5rem, 5vw, 5rem); border-top: 1px solid var(--line); color: var(--muted); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-brand { color: var(--paper); }
.footer-brand .brand-mark { width: 1.3rem; }
.footer-brand .brand-name { font-size: .82rem; }

.js .reveal { opacity: 0; transform: translateY(2.5rem); transition: opacity .8s ease, transform .8s cubic-bezier(.2,.7,.2,1); }
.js .reveal.visible { opacity: 1; transform: none; }
@keyframes hero-in { from { opacity: .35; transform: scale(1.08); } to { opacity: 1; transform: scale(1.015); } }

@media (max-width: 900px) {
  .site-header { min-height: 4.6rem; }
  .menu-toggle { display: grid; width: 3rem; height: 3rem; padding: .8rem; place-content: center; gap: .42rem; color: var(--paper); background: rgba(7,10,16,.4); border: 1px solid rgba(215,173,90,.35); }
  .menu-toggle span:not(.sr-only) { display: block; width: 1.2rem; height: 1px; background: currentColor; transition: transform .25s ease; }
  .menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(.22rem) rotate(45deg); }
  .menu-toggle[aria-expanded="true"] span:nth-child(2) { transform: translateY(-.22rem) rotate(-45deg); }
  .site-nav { position: fixed; inset: 4.6rem 0 auto; display: grid; gap: 0; padding: .5rem 1.4rem 1.4rem; background: rgba(7,10,16,.97); border-bottom: 1px solid var(--line); transform: translateY(-130%); transition: transform .3s ease; }
  .site-nav.open { transform: translateY(0); }
  .site-nav a { padding: 1rem .3rem; border-bottom: 1px solid rgba(215,173,90,.12); }
  .nav-accent { margin-top: .8rem; text-align: center; }
  .hero-content { margin: 0; padding: 6rem 2rem 8rem; }
  .hero-image { background-position: 64% center; }
  .hero-shade { background: linear-gradient(90deg, rgba(5,8,14,.96), rgba(5,8,14,.58) 75%, rgba(5,8,14,.35)), linear-gradient(0deg, rgba(5,8,14,.88), transparent 50%); }
  h1 { font-size: clamp(4.1rem, 17vw, 7rem); }
  h1 span:last-child { margin-left: 1.2rem; }
  .hero-lead, .hero-actions { margin-left: 1.2rem; }
  .hero-status { left: 2rem; bottom: 3.2rem; }
  .hero-index { display: none; }
  .concept { grid-template-columns: 1fr; gap: 1.5rem; }
  .concept-copy { padding-top: 0; }
  .acts { grid-template-columns: 1fr; }
  .act { display: grid; grid-template-columns: 3rem 1fr; min-height: 0; gap: 1rem; }
  .act + .act { border-top: 1px solid var(--line); border-left: 0; }
  .act-no { margin: 0; }
  .site-footer { grid-template-columns: 1fr; text-align: center; }
  .footer-brand { justify-content: center; }
}

@media (max-width: 560px) {
  .brand-name { font-size: .9rem; }
  .brand-mark { width: 1.45rem; }
  .hero-content { width: 100%; padding-right: 1.4rem; padding-left: 1.4rem; }
  .deco-frame { inset: 5.4rem .8rem 1rem; }
  .hero-lead { margin-left: .8rem; font-size: 1rem; }
  .hero-lead br { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: .6rem; margin-left: .8rem; }
  .button { width: 100%; }
  .hero-status { right: 1.5rem; bottom: 2.2rem; left: 1.5rem; }
  .section { padding-right: 1.4rem; padding-left: 1.4rem; }
  h2 { font-size: clamp(3.1rem, 15vw, 5rem); }
  .micro-grid { grid-template-columns: 1fr; }
  .micro-grid span + span { border-top: 1px solid var(--line); border-left: 0; }
  .evening-head { margin-bottom: 3rem; }
  .act { grid-template-columns: 2rem 1fr; padding: 1.8rem .6rem; }
  .atmosphere { min-height: 68rem; place-items: end center; padding-bottom: 7rem; }
  .atmosphere-image { background-position: 71% center; }
  .atmosphere-content p:last-child { margin-left: 0; }
  .opening { min-height: 40rem; }
  .opening-ornament { width: 92vw; aspect-ratio: 1/1.2; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}