/* ============================================================
   echoZone — статический сайт
   Концепция: "EZ-MIRROR" (E и зеркальная Z = повёрнутая N)
   Палитра: «Эхо снега и латуни» — светлый #F7F7F7 с акцентами
   латуни и индиго-эхо; тёмная альт-схема на #232323.
   ============================================================ */

/* === Дизайн-токены === */
:root {
  --bg: #F7F7F7;
  --bg-soft: #EFEFEC;
  --bg-deep: #E8E5DD;
  --ink: #1A1A1A;
  --ink-2: #4A4A4A;
  --ink-3: #8A8A8A;
  --line: #D6D2C7;
  --accent: #B58A4A;       /* латунь */
  --accent-2: #2E3A59;     /* индиго-эхо */
  --accent-soft: #E9E1CF;
  --danger: #C44536;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow: 0 10px 30px rgba(0,0,0,.06), 0 2px 6px rgba(0,0,0,.04);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.10), 0 8px 16px rgba(0,0,0,.05);
  --container: 1200px;
  --transition: .35s cubic-bezier(.22,.61,.36,1);
  --font: 'Inter Tight', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-script: 'Caveat', cursive;
}

html[data-theme="dark"] {
  --bg: #232323;
  --bg-soft: #2B2B2B;
  --bg-deep: #1C1C1C;
  --ink: #F1EEE6;
  --ink-2: #C6C2B6;
  --ink-3: #8A8576;
  --line: #3A3A3A;
  --accent: #D4A55D;
  --accent-2: #B7C0DA;
  --accent-soft: #3A3528;
  --shadow: 0 10px 30px rgba(0,0,0,.4), 0 2px 6px rgba(0,0,0,.3);
  --shadow-lg: 0 24px 60px rgba(0,0,0,.5);
}

/* === Базовый сброс === */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 17px;
  font-feature-settings: "ss01","ss02","cv02";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }

/* === Декоративный фон: волны + ноты === */
.bg-art {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: .35;
}
.bg-art__wave {
  position: absolute; bottom: 8%; left: -5%; width: 110%; height: 280px;
  stroke: var(--ink-3); stroke-width: .8; fill: none; opacity: .25;
}
.bg-art__note { position: absolute; color: var(--accent); opacity: .12; width: 60px; height: 80px; }
.bg-art__note--1 { top: 18%; left: 6%; transform: rotate(-12deg); }
.bg-art__note--2 { top: 55%; right: 8%; transform: rotate(10deg); }
.bg-art__note--3 { top: 80%; left: 22%; transform: rotate(-4deg); width: 40px; height: 56px; }

/* === Главные «слои» поверх фона === */
header, section, footer { position: relative; z-index: 1; }

/* === Типографика === */
h1,h2,h3,h4 { font-weight: 800; letter-spacing: -0.01em; line-height: 1.1; margin: 0 0 .4em; }
.section-title { font-size: clamp(28px, 4vw, 52px); }
.section-title em { font-style: italic; color: var(--accent); font-weight: 700; }
.section-sub { color: var(--ink-2); max-width: 60ch; margin: 0 auto; font-size: 18px; }
.section-head { text-align: center; margin-bottom: 56px; }

.eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--accent-2); padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px;
  margin-bottom: 24px;
}
.kicker { color: var(--accent); letter-spacing: .18em; text-transform: uppercase; font-weight: 700; font-size: 13px; }

/* === Кнопки === */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 26px; border-radius: 999px; font-weight: 600;
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  font-size: 15px; line-height: 1;
}
.btn--primary { background: var(--ink); color: var(--bg); }
.btn--primary:hover { background: var(--accent); color: #fff; transform: translateY(-1px); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: var(--bg); }

/* === Навигация === */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  height: 72px;
}
.brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-weight: 800; }
.brand__word strong { color: var(--accent); }
.brand__mark { color: var(--ink); }
.nav__links { display: flex; gap: 22px; }
.nav__links a { font-size: 14px; color: var(--ink-2); }
.nav__links a:hover { color: var(--ink); }
.nav__cta { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  background: transparent; border: 1px solid var(--line); width: 36px; height: 36px;
  border-radius: 50%; cursor: pointer; color: var(--ink); font-size: 16px;
  transition: background var(--transition);
}
.theme-toggle:hover { background: var(--bg-soft); }
.burger { display: none; flex-direction: column; gap: 4px; background: none; border: 0; cursor: pointer; padding: 8px; }
.burger span { width: 24px; height: 2px; background: var(--ink); }

/* === HERO === */
.hero {
  padding: 80px 0 100px;
  background:
    radial-gradient(ellipse at 80% 20%, color-mix(in srgb, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(ellipse at 10% 90%, color-mix(in srgb, var(--accent-2) 10%, transparent), transparent 55%);
}
.hero__grid {
  display: grid; grid-template-columns: 1.15fr 1fr; gap: 60px; align-items: center;
}
.hero__title { font-size: clamp(40px, 7vw, 96px); margin: 0 0 24px; line-height: .95; }
.hero__title .accent { color: var(--accent); }
.hero__title small {
  display: block; font-size: clamp(16px, 1.6vw, 22px); font-weight: 400; color: var(--ink-2);
  margin-top: 18px; max-width: 30ch; font-family: var(--font-script);
}
.hero__lead { color: var(--ink-2); font-size: 18px; max-width: 56ch; margin: 0 0 28px; }
.hero__bullets { list-style: none; padding: 0; margin: 0 0 36px; display: grid; gap: 10px; }
.hero__bullets li { display: flex; align-items: center; gap: 12px; color: var(--ink); font-weight: 500; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.hero__visual {
  aspect-ratio: 1/1; border-radius: var(--radius-lg);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hero__visual img { width: 100%; height: 100%; object-fit: cover; }
.hero__scroll {
  text-align: center; margin-top: 40px; color: var(--ink-3); font-size: 13px; letter-spacing: .2em; text-transform: uppercase;
  animation: bounce 2.4s infinite;
}
@keyframes bounce { 0%,100%{transform:translateY(0)} 50%{transform:translateY(6px)} }

/* === Иконки === */
.ic { width: 24px; height: 24px; color: var(--accent); flex: none; }
.ic--lg { width: 44px; height: 44px; }

/* === Манифест === */
.manifest { padding: 100px 0; }
.manifest__grid { display: grid; gap: 28px; max-width: 880px; margin: 0 auto; text-align: center; }
.manifest__text { font-size: 22px; color: var(--ink-2); line-height: 1.5; }
.manifest__text strong { color: var(--ink); }
.manifest__quote {
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 24px; display: flex; gap: 14px; align-items: center; justify-content: center;
  font-family: var(--font-script); font-size: 22px; color: var(--ink);
}

/* === Сетки === */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* === Карточки === */
.tech { padding: 80px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.card {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 28px; transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent); }
.card__ic { width: 44px; height: 44px; color: var(--accent); margin-bottom: 16px; }
.card h3 { font-size: 20px; margin: 0 0 10px; }
.card p { color: var(--ink-2); margin: 0; font-size: 15px; }
.card__tag {
  position: absolute; top: 18px; right: 18px;
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase; color: var(--accent);
}

/* === Клиенты (4 направления) === */
.clients { padding: 100px 0; }
.client { text-align: center; }
.client__img {
  aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg-soft); border: 1px solid var(--line); margin-bottom: 18px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.client:hover .client__img { transform: translateY(-4px); box-shadow: var(--shadow); }
.client__img img { width: 100%; height: 100%; object-fit: cover; }
.client__img--sketch { position: relative; isolation: isolate; }
.client__img--sketch::before,
.client__img--sketch::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
}
.client__img--sketch::before {
  background-image: var(--client-img);
  background-size: cover; background-position: center;
  filter: grayscale(1) contrast(1.85) brightness(1.18);
  mix-blend-mode: multiply;
  opacity: .82;
  clip-path: polygon(52% 0, 100% 0, 100% 100%, 43% 100%);
  z-index: 1;
}
.client__img--sketch::after {
  background:
    linear-gradient(90deg, transparent 0 42%, color-mix(in srgb, var(--bg) 72%, transparent) 52%, color-mix(in srgb, var(--bg) 86%, transparent) 100%),
    repeating-linear-gradient(135deg, transparent 0 7px, color-mix(in srgb, var(--ink) 18%, transparent) 8px 9px);
  clip-path: polygon(44% 0, 100% 0, 100% 100%, 37% 100%);
  mix-blend-mode: multiply;
  opacity: .58;
  z-index: 2;
}
.client h3 { font-size: 22px; margin: 0 0 6px; }
.client p { color: var(--ink-2); font-size: 15px; margin: 0 auto; max-width: 26ch; }

/* === Макро-фактуры === */
.textures { padding: 80px 0; background: var(--bg-deep); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.textures__row {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px;
}
.textures__row figure {
  margin: 0; aspect-ratio: 1/1; border-radius: var(--radius); overflow: hidden;
  position: relative; border: 1px solid var(--line); background: var(--bg-soft);
}
.textures__row figure img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.textures__row figure:hover img { transform: scale(1.05); }
.textures__row figcaption {
  position: absolute; left: 10px; bottom: 8px; font-family: var(--font-script);
  color: #fff; font-size: 18px; text-shadow: 0 1px 4px rgba(0,0,0,.3);
}

/* === Сплит-блоки === */
.split { padding: 100px 0; }
.split--alt { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.split__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split__grid--reverse > .split__media { order: 2; }
.split__media {
  aspect-ratio: 4/3; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--bg); border: 1px solid var(--line); box-shadow: var(--shadow);
}
.split__media img { width: 100%; height: 100%; object-fit: cover; }
.split__copy p { color: var(--ink-2); font-size: 17px; }

.list-lined { list-style: none; padding: 0; margin: 24px 0 0; }
.list-lined li {
  display: flex; align-items: flex-start; gap: 14px; padding: 14px 0;
  border-top: 1px dashed var(--line);
}
.list-lined li:last-child { border-bottom: 1px dashed var(--line); }

/* === Цитата === */
.quote-block { padding: 80px 0; text-align: center; }
.quote-block blockquote {
  font-size: clamp(24px, 3vw, 38px); font-weight: 600; max-width: 880px; margin: 0 auto;
  line-height: 1.3; color: var(--ink); position: relative;
}
.quote-mark { color: var(--accent); font-size: 80px; line-height: 0; vertical-align: -18px; margin-right: 8px; font-family: Georgia, serif; }
.quote-block cite { display: block; margin-top: 18px; font-style: normal; font-size: 14px; color: var(--ink-3); letter-spacing: .12em; text-transform: uppercase; }
.quote-block__note { margin: 30px auto 0; max-width: 720px; color: var(--ink-2); font-size: 15px; }
.quote-block__note a { color: var(--accent); border-bottom: 1px dashed var(--accent); }

/* === Тарифы === */
.pricing { padding: 100px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.grid--pricing { gap: 20px; }
.plan {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 32px 24px; display: flex; flex-direction: column; transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.plan:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.plan h3 { font-size: 22px; margin: 0 0 12px; }
.plan__price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 6px; }
.plan__price b { font-size: 36px; font-weight: 800; color: var(--ink); }
.plan__price span { color: var(--ink-3); font-size: 14px; }
.plan__hint { color: var(--ink-3); font-size: 13px; letter-spacing: .1em; text-transform: uppercase; margin: 0 0 18px; }
.plan ul { list-style: none; padding: 0; margin: 0 0 24px; flex: 1; }
.plan ul li { padding: 8px 0; color: var(--ink-2); font-size: 15px; border-bottom: 1px dashed var(--line); position: relative; padding-left: 22px; }
.plan ul li::before { content: "♪"; position: absolute; left: 0; color: var(--accent); }
.plan--featured { border-color: var(--accent); box-shadow: var(--shadow-lg); transform: translateY(-6px); }
.plan--featured::after {
  content: "Хит"; position: absolute; top: -12px; right: 18px; background: var(--accent); color: #fff;
  font-size: 12px; padding: 4px 10px; border-radius: 999px; letter-spacing: .12em; text-transform: uppercase;
}
.plan--lab { background: linear-gradient(160deg, var(--accent-soft), var(--bg)); }

/* === Как это работает === */
.how { padding: 100px 0; }
.steps {
  list-style: none; padding: 0; margin: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s;
}
.steps li {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 28px;
  position: relative; transition: transform var(--transition), box-shadow var(--transition);
}
.steps li:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.steps__n { display: block; font-family: var(--font-script); font-size: 32px; color: var(--accent); margin-bottom: 4px; }
.steps li h3 { font-size: 18px; margin: 6px 0 10px; }
.steps li p { color: var(--ink-2); font-size: 14px; margin: 0; }

/* === FAQ === */
.faq { padding: 80px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.faq__list { max-width: 820px; margin: 0 auto; display: grid; gap: 12px; }
.faq details {
  background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px 24px; transition: border-color var(--transition);
}
.faq details[open] { border-color: var(--accent); }
.faq summary {
  cursor: pointer; font-weight: 600; font-size: 17px; list-style: none;
  display: flex; justify-content: space-between; align-items: center;
}
.faq summary::after { content: "+"; color: var(--accent); font-size: 22px; transition: transform var(--transition); }
.faq details[open] summary::after { content: "−"; }
.faq details p { margin: 14px 0 0; color: var(--ink-2); font-size: 15px; }

/* === Аудио блок === */
.audio { padding: 100px 0; }
.audio__hero {
  margin: 0; max-width: 1040px; margin-inline: auto;
  background: var(--bg-soft); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: 18px;
  box-shadow: var(--shadow);
  position: relative; overflow: hidden;
}
.audio__hero::before,
.audio__hero::after {
  content: ""; position: absolute; pointer-events: none; opacity: .35;
}
.audio__hero::before {
  inset: -40% -10% auto auto; width: 60%; height: 60%;
  background: radial-gradient(circle at center, color-mix(in srgb, var(--accent) 35%, transparent), transparent 65%);
  filter: blur(20px);
}
.audio__hero::after {
  inset: auto auto -40% -10%; width: 50%; height: 50%;
  background: radial-gradient(circle at center, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 65%);
  filter: blur(20px);
}
.audio__card { background: var(--bg-soft); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 16px; }
.audio__frame {
  position: relative; aspect-ratio: 16/9; border-radius: var(--radius);
  overflow: hidden; border: 1px solid var(--line);
  background: #000;
}
.audio__frame iframe,
.audio__frame video {
  position: absolute; inset: 0; width: 100%; height: 100%; border: 0;
  object-fit: cover; background: #000;
}
.audio__caption {
  display: flex; flex-direction: column; gap: 6px;
  padding: 18px 6px 4px; max-width: 720px;
}
.audio__caption p { margin: 0; color: var(--ink-2); font-size: 15px; }
.audio__card p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* === Новости === */
.news { padding: 100px 0; background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.news__list { display: grid; gap: 24px; max-width: 980px; margin: 0 auto; }
.news-item { display: grid; grid-template-columns: 280px 1fr; gap: 28px; background: var(--bg); padding: 20px; border: 1px solid var(--line); border-radius: var(--radius-lg); transition: transform var(--transition), box-shadow var(--transition); }
.news-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.news-item__img { aspect-ratio: 4/3; border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); }
.news-item__img img { width: 100%; height: 100%; object-fit: cover; }
.news-item__body time { font-size: 12px; letter-spacing: .15em; text-transform: uppercase; color: var(--ink-3); }
.news-item__body h3 { font-size: 22px; margin: 8px 0 10px; }
.news-item__body p { color: var(--ink-2); margin: 0; }

/* === Форма === */
.form { padding: 100px 0; }
.form__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.form__copy p { color: var(--ink-2); }
.contact-list { list-style: none; padding: 0; margin: 24px 0 0; display: grid; gap: 8px; }
.contact-list a { color: var(--accent); }
.form__fields { display: grid; gap: 16px; background: var(--bg-soft); padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--line); }
.form__fields label { display: grid; gap: 6px; font-size: 13px; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); }
.form__fields input, .form__fields textarea {
  font: inherit; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--line);
  background: var(--bg); color: var(--ink); transition: border-color var(--transition);
}
.form__fields input:focus, .form__fields textarea:focus { outline: none; border-color: var(--accent); }
.form__fields button { justify-self: start; }

/* === Контакты + карта === */
.contacts {
  padding: 80px 0 120px;
  background:
    linear-gradient(180deg, var(--bg) 0%, var(--bg-deep) 100%);
  border-top: 1px solid var(--line);
}
.contacts__grid { display: grid; grid-template-columns: 1fr 1.4fr; gap: 40px; align-items: stretch; }
.contacts__addr { color: var(--ink-2); margin: 0 0 14px; }
.contacts__map { aspect-ratio: 16/10; border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow); background: var(--bg-soft); }
.contacts__map iframe { width: 100%; height: 100%; }

/* === Подвал — единственное место с альтернативным фоном === */
.footer {
  background: #1A1A1A; color: #E6E2D6; padding: 80px 0 40px; margin-top: 0;
}
.footer__grid {
  display: grid; grid-template-columns: 1.4fr 2fr 1fr; gap: 40px; align-items: start;
}
.footer__brand { display: grid; gap: 14px; }
.footer__brand .brand__mark { color: #E6E2D6; }
.footer__brand p { color: #A6A293; max-width: 38ch; margin: 0; }
.footer__nav { display: flex; flex-wrap: wrap; gap: 18px; }
.footer__nav a { color: #E6E2D6; }
.footer__soc { display: flex; gap: 12px; }
.footer__soc a {
  width: 40px; height: 40px; border: 1px solid #3A3A3A; border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center; color: #E6E2D6; font-size: 12px; text-transform: uppercase;
  transition: background var(--transition), border-color var(--transition);
}
.footer__soc a:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.footer__copy { grid-column: 1 / -1; padding-top: 30px; margin: 30px 0 0; border-top: 1px solid #2E2E2E; color: #6F6B5C; font-size: 13px; text-align: center; }

/* === Анимации появления (прогрессивное улучшение) === */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .8s ease, transform .8s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

/* === Адаптив === */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__visual { max-width: 480px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .textures__row { grid-template-columns: repeat(3, 1fr); }
  .split__grid, .split__grid--reverse { grid-template-columns: 1fr; }
  .split__grid--reverse > .split__media { order: 0; }
  .form__inner { grid-template-columns: 1fr; }
  .contacts__grid { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .news-item__img { aspect-ratio: 16/9; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .nav__links { display: none; }
  .burger { display: inline-flex; }
  .grid--2, .grid--4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .textures__row { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0; }
  .manifest, .clients, .pricing, .how, .faq, .audio, .news, .form, .split, .textures { padding: 60px 0; }
  .section-head { margin-bottom: 32px; }
}

/* === Открытое моб-меню === */
.nav__links.is-open {
  display: flex; position: absolute; top: 72px; left: 0; right: 0;
  flex-direction: column; padding: 16px 24px; gap: 16px;
  background: var(--bg); border-bottom: 1px solid var(--line);
}