/* ══ Базовые стили (из дизайн-референса) ══ */
:root { --accent: #1a56c4; --accent-hover: #12408f; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  background: #f5f7fa;
  color: #141c26;
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }
input::placeholder, textarea::placeholder { color: #9aa6b5; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }

.container { max-width: 1240px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.fade-up { animation: fadeUp 0.6s ease both; }
.fade-up-fast { animation: fadeUp 0.35s ease both; }
.mono { font-family: 'IBM Plex Mono', monospace; }

/* Направления работ на первом экране */
.hero-directions {
  list-style: none; padding: 0; margin: 0 0 24px;
  display: grid; gap: 9px; max-width: 56ch;
}
.hero-directions li {
  position: relative; padding-left: 18px;
  font-size: 14.5px; line-height: 1.45; color: #3c4a5c;
  text-wrap: pretty;
}
.hero-directions li::before {
  content: ''; position: absolute; left: 0; top: 0.55em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
}

/* ══ Шапка ══ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.92);
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  border-bottom: 1px solid #e3e8ef;
}
.header-in { display: flex; align-items: center; gap: 24px; height: 68px; }
.logo { display: flex; align-items: center; gap: 12px; flex: none; }
.logo img { width: 40px; height: 40px; object-fit: contain; display: block; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name { font-weight: 700; font-size: 18px; letter-spacing: 0.04em; color: #141c26; }
.logo-sub { font-family: 'IBM Plex Mono', monospace; font-size: 10.5px; color: #66788e; letter-spacing: 0.06em; }

.nav-desktop { display: flex; gap: 28px; margin-left: auto; align-items: center; }
.nav-link { font-size: 14.5px; font-weight: 500; color: #3c4a5c; }
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--accent); font-weight: 600; }

.header-socials { display: flex; align-items: center; gap: 8px; flex: none; }
.icon-btn {
  display: flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 9px;
  border: 1px solid #e3e8ef; background: #fff;
}
.icon-btn:hover { border-color: var(--accent); }
.icon-btn img { width: 19px; height: 19px; display: block; }

.header-right { display: flex; align-items: center; gap: 16px; flex: none; }
.phone-link { font-family: 'IBM Plex Mono', monospace; font-size: 14px; font-weight: 600; color: #141c26; }
.phone-link:hover { color: var(--accent); }

.burger {
  display: none; margin-left: auto; background: none;
  border: 1px solid #d6dde6; border-radius: 8px;
  width: 44px; height: 44px;
  flex-direction: column; gap: 5px; align-items: center; justify-content: center; cursor: pointer;
}
.burger span { width: 18px; height: 2px; background: #141c26; display: block; }

.mobile-menu { display: none; flex-direction: column; gap: 4px; padding: 12px 24px 20px; background: #fff; border-bottom: 1px solid #e3e8ef; }
.mm-link { padding: 12px 8px; font-size: 16px; font-weight: 500; color: #141c26; border-bottom: 1px solid #eef1f5; }
.mm-link.active { color: var(--accent); font-weight: 600; }
.mm-phone { padding: 14px 8px 4px; font-family: 'IBM Plex Mono', monospace; font-size: 16px; font-weight: 600; color: var(--accent); }
.mm-socials { display: flex; gap: 10px; padding: 12px 8px 0; }
.mm-icon {
  display: flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 10px; border: 1px solid #d6dde6; background: #fff;
}
.mm-icon img { width: 22px; height: 22px; display: block; }
.mm-cta {
  margin-top: 10px; display: flex; justify-content: center;
  background: var(--accent); color: #fff; font-size: 15px; font-weight: 600;
  padding: 13px 20px; border-radius: 8px;
}
.mm-cta:hover { background: var(--accent-hover); color: #fff; }

/* Брейкпоинт мобильного меню: 960px по умолчанию, 1080px для страниц услуг */
@media (max-width: 959.98px) {
  .site-header[data-bp="960"] .nav-desktop,
  .site-header[data-bp="960"] .header-socials,
  .site-header[data-bp="960"] .header-right { display: none; }
  .site-header[data-bp="960"] .burger { display: flex; }
  .site-header[data-bp="960"] .mobile-menu.open { display: flex; }
}
@media (max-width: 1079.98px) {
  .site-header[data-bp="1080"] .nav-desktop,
  .site-header[data-bp="1080"] .header-socials,
  .site-header[data-bp="1080"] .header-right { display: none; }
  .site-header[data-bp="1080"] .burger { display: flex; }
  .site-header[data-bp="1080"] .mobile-menu.open { display: flex; }
}

/* ══ Кнопки ══ */
.btn-primary {
  display: inline-flex; align-items: center;
  background: var(--accent); color: #fff;
  font-size: 15.5px; font-weight: 600; padding: 14px 28px; border-radius: 10px;
  box-shadow: 0 4px 14px rgba(26,86,196,0.25);
  border: none; cursor: pointer; font-family: 'IBM Plex Sans', sans-serif;
}
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-outline {
  display: inline-flex; align-items: center;
  background: #fff; color: #141c26;
  font-size: 15.5px; font-weight: 600; padding: 14px 28px; border-radius: 10px;
  border: 1px solid #d6dde6;
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-cta {
  display: inline-flex; align-items: center;
  background: var(--accent); color: #fff;
  font-size: 14px; font-weight: 600; padding: 10px 20px; border-radius: 8px;
}
.btn-cta:hover { background: var(--accent-hover); color: #fff; }
.btn-white {
  display: inline-flex; background: #fff; color: #0e1c33;
  font-size: 14px; font-weight: 600; padding: 11px 22px; border-radius: 8px;
}
.btn-white:hover { background: #dbe6f7; color: #0e1c33; }
.btn-dark-ghost {
  display: inline-flex; align-items: center;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.14);
  color: #dbe4f0; font-size: 13.5px; font-weight: 600; padding: 9px 16px; border-radius: 8px;
}
.btn-dark-ghost:hover { background: rgba(255,255,255,0.16); color: #fff; }
.btn-light-ghost {
  display: inline-flex; align-items: center; gap: 7px;
  background: #f5f7fa; border: 1px solid #e3e8ef;
  color: #3c4a5c; font-size: 13px; font-weight: 600; padding: 8px 14px; border-radius: 8px;
}
.btn-light-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-secondary {
  background: none; border: 1px solid #d6dde6; border-radius: 8px;
  padding: 10px 20px; cursor: pointer;
  font-family: 'IBM Plex Sans', sans-serif; font-size: 14px; font-weight: 600; color: #3c4a5c;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

/* ══ Типографика и мелочи ══ */
.overline { font-family: 'IBM Plex Mono', monospace; font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 0.08em; }
.overline-dark { color: #7fa4e0; }
.chip {
  font-family: 'IBM Plex Mono', monospace; font-size: 12.5px; font-weight: 500;
  color: #3c4a5c; background: #fff; border: 1px solid #dbe2ea; border-radius: 6px; padding: 5px 10px;
}
.card-hover { transition: box-shadow 0.2s, transform 0.2s; }
.card-hover:hover { box-shadow: 0 12px 32px rgba(14,22,34,0.10); transform: translateY(-2px); }
.detail-btn {
  align-self: flex-start; margin-top: 6px; background: none; border: none; padding: 8px 0; cursor: pointer;
  font-family: 'IBM Plex Sans', sans-serif; font-size: 14px; font-weight: 600; color: var(--accent);
  display: flex; align-items: center; gap: 6px;
}
.detail-btn:hover { color: var(--accent-hover); }
.dark-link { color: #9fc0ef; }
.dark-link:hover { color: #fff; }
.footer-link { color: #8fa0b8; }
.footer-link:hover { color: #fff; }
.crumb { color: #66788e; }
.crumb:hover { color: var(--accent); }
.subtle-link { color: #3c4a5c; }
.subtle-link:hover { color: var(--accent); }

/* ══ Форма заявки ══ */
.input, .textarea {
  border: 1px solid #d6dde6; border-radius: 9px; padding: 13px 15px;
  font-family: 'IBM Plex Sans', sans-serif; font-size: 15px; color: #141c26;
  background: #fbfcfe; outline: none; width: 100%;
}
.textarea { resize: vertical; }
.input:focus, .textarea:focus { border-color: var(--accent); }
.form-error {
  font-size: 13.5px; color: #c4372f; background: #fdf0ef;
  border: 1px solid #f3d4d1; border-radius: 8px; padding: 10px 14px;
}
.btn-submit {
  background: var(--accent); color: #fff; border: none; border-radius: 10px; padding: 15px 24px;
  cursor: pointer; font-family: 'IBM Plex Sans', sans-serif; font-size: 15.5px; font-weight: 600;
  box-shadow: 0 4px 14px rgba(26,86,196,0.25);
}
.btn-submit:hover { background: var(--accent-hover); }
.btn-submit:disabled { opacity: 0.6; cursor: default; }
/* Honeypot: скрытое поле-ловушка для ботов */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

[hidden] { display: none !important; }

/* Ошибки обязательных полей */
.input[aria-invalid="true"] { border-color: #c4372f; }

/* Выпадающее меню страниц услуг */
.nav-services { position: relative; display: flex; align-items: center; padding: 12px 0; gap: 1px; }
.services-toggle { display: inline-flex; align-items: center; justify-content: center; width: 20px; height: 28px; flex: none; padding: 0; border: 0; border-radius: 6px; background: transparent; color: #3c4a5c; line-height: 0; cursor: pointer; }
.services-toggle:hover { background: #eaf0fb; color: var(--accent); }
.services-toggle svg { display: block; flex: none; transform-origin: 50% 50%; }
.services-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
.services-toggle:focus-visible, .services-dropdown a:focus-visible, .mm-services-list a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.services-dropdown { position: absolute; top: 100%; left: -16px; width: 360px; max-height: calc(100vh - 90px); overflow-y: auto; margin: 0; padding: 8px; list-style: none; border: 1px solid #e3e8ef; border-radius: 12px; background: #fff; box-shadow: 0 16px 40px rgba(14,22,34,0.14); }
.services-dropdown a { display: block; padding: 11px 12px; border-radius: 7px; color: #3c4a5c; font-size: 14px; line-height: 1.45; }
.services-dropdown a:hover, .services-dropdown a[aria-current="page"] { background: #eaf0fb; color: var(--accent); }
.mm-services-row { display: flex; align-items: center; border-bottom: 1px solid #eef1f5; }
.mm-services-row .mm-link { flex: 1; border: 0; }
.mm-services-row .services-toggle { width: 44px; height: 44px; }
.mm-services-list { margin: 0; padding: 4px 0 8px 16px; list-style: none; }
.mm-services-list a { display: block; padding: 10px 8px; color: #3c4a5c; font-size: 14px; line-height: 1.45; }
.mm-services-list a[aria-current="page"] { color: var(--accent); font-weight: 600; }
.mobile-menu { max-height: calc(100dvh - 68px); overflow-y: auto; }

/* Компактная строка социальных сетей под контактными карточками. */
[data-contact-socials] > a { flex: 0 0 auto; white-space: nowrap; font-size: 12px; line-height: 1.4; padding: 7px 9px; }