/* ============================================================
   BRISTOL IS UNDER PRESSURE — Industrial Pressure Washing Landing Page
   Design system: sharp corners, deep navy + vivid red, clean grid.
   ============================================================ */

:root {
  --color-primary: #0A1626;
  --color-secondary: #D92323;
  --color-secondary-hover: #B81D1D;
  --color-bg-main: #F4F6F9;
  --color-bg-card: #FFFFFF;
  --color-text-dark: #0A1626;
  --color-text-muted: #4A5568;
  --color-text-subtle: #92a5c4;
  --color-text-light: #FFFFFF;
  --color-border: #E2E8F0;
  --color-input-bg: #FFFFFF;
  --color-btn-secondary-bg: #F8FAFC;

  --radius: 2px;
  --radius-sm: 2px;
  --container-max: 1180px;
  --shadow-card: 0 2px 8px rgba(10, 22, 38, 0.06), 0 12px 32px rgba(10, 22, 38, 0.08);
  --shadow-card-hover: 0 6px 16px rgba(10, 22, 38, 0.1), 0 18px 40px rgba(10, 22, 38, 0.14);
  --shadow-form: 0 8px 30px rgba(10, 22, 38, 0.18);
  --font-body: 'Inter', system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-head: 'Oswald', 'Inter', sans-serif;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg-main);
  color: var(--color-text-dark);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, h5, h6 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; letter-spacing: -0.01em; margin: 0; color: var(--color-text-dark); text-transform: uppercase; }
p { margin: 0; color: var(--color-text-muted); }
a { color: var(--color-secondary); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--color-secondary-hover); }
img { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }
button { font-family: inherit; }
.skip-link { background: var(--color-secondary); color: #fff; padding: 10px 16px; z-index: 2000; }

.container { max-width: var(--container-max); }

/* ---------- Buttons ---------- */
.biu-btn-primary,
.biu-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  font-family: var(--font-head);
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius);
  padding: 13px 26px;
  font-size: .9rem;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease), transform .15s var(--ease), box-shadow .2s var(--ease);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}
.biu-btn-primary {
  background: var(--color-secondary);
  color: var(--color-text-light);
  border-color: var(--color-secondary);
  /* box-shadow: 0 4px 14px rgba(217, 35, 35, 0.28); */
}
.biu-btn-primary:hover {
  background: var(--color-secondary-hover);
  color: var(--color-text-light);
  border-color: var(--color-secondary-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(217, 35, 35, 0.38);
}
.biu-btn-primary:active { transform: translateY(0); }
.biu-btn-secondary {
  background: var(--color-btn-secondary-bg);
  color: var(--color-text-dark);
  border-color: var(--color-border);
}
.biu-btn-secondary:hover {
  background: #eef2f7;
  color: var(--color-text-dark);
  border-color: #cbd5e1;
}
.biu-btn-block { display: flex; width: 100%; }

/* Lists */
.biu-list {
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 12px;
  max-width: 460px;
}
.biu-list li {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,0.92);
  font-weight: 500;
  font-size: .96rem;
}

/* ---------- Navbar ---------- */
.navbar {
  background-color: var(--color-primary);
  
}@media (max-width: 767.98px) {
  .navbar {border-bottom: 2px solid var(--color-secondary);}
  }
.biu-nav {
  background: rgba(10, 22, 38, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 14px 0;
  border-bottom: 2px solid rgba(217, 35, 35, 0.7);
  transition: padding .25s var(--ease), background .25s var(--ease);
}
.biu-nav.scrolled { padding: 8px 0; background: var(--color-primary); }
.biu-brand { display: flex; align-items: center; gap: 12px; padding: 0; }
.biu-logo {
  height: 44px;
  width: auto;
  object-fit: cover;
  /* border-radius: var(--radius); */
  /* border: 1px solid rgba(255,255,255,0.15); */
  /* background: #fff; */
}
.biu-brand-name { display: flex; flex-direction: column; line-height: 1; font-family: var(--font-head); }
.biu-brand-line1 { color: #fff; font-size: 1.05rem; font-weight: 700; letter-spacing: .12em; }
.biu-brand-line2 { color: var(--color-secondary); font-size: .72rem; font-weight: 600; letter-spacing: .14em; margin-top: 3px; }

.biu-nav-links .nav-link {
  color: rgba(255,255,255,0.82) !important;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .06em;
  text-transform: uppercase;
  font-size: .82rem;
  padding: 8px 14px !important;
  position: relative;
  transition: color .2s var(--ease);
}
.biu-nav-links .nav-link::after {
  content: "";
  position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px;
  background: var(--color-secondary);
  transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease);
}
.biu-nav-links .nav-link:hover,
.biu-nav-links .nav-link.active {
  color: #fff !important;
}
.biu-nav-links .nav-link:hover::after,
.biu-nav-links .nav-link.active::after { transform: scaleX(1); }

/* Убираем дефолтную стрелочку-треугольник Bootstrap */
.biu-nav-links .dropdown-toggle::after {
  display: none !important;
  content: none !important;
}

.biu-nav-cta { padding: 10px 22px; font-size: .82rem; }

.navbar-toggler { border-color: rgba(255,255,255,0.25); border-radius: var(--radius); padding: 6px 10px; }
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(217,35,35,.35); }
.navbar-toggler-icon { filter: invert(1); }

.biu-dropdown-menu {
  border: 1px solid #dee2e6;
  border-radius: var(--radius, 8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  padding: 8px 0;
  margin-top: 8px !important;
}

.biu-dropdown-menu .dropdown-item {
  padding: 10px 20px;
  font-size: 15px;
  color: #333333;
  transition: background-color 0.15s ease-in-out;
}

.biu-dropdown-menu .dropdown-item:hover {
  background-color: #f8f9fa; 
  color: var(--color-primary, #000);
}
/* ---------- Hero ---------- */
.biu-hero {
  position: relative;
  background:
    linear-gradient(rgba(10,22,38,0.1), rgba(10,22,38,0.96)),
    url('https://bristol.erphy.me/resources/img/slide_2.webp') center/cover no-repeat;
  color: var(--color-text-light);
  padding: 140px 0 90px;
  overflow: hidden;
}@media (max-width: 767.98px) {
  .biu-hero {background: unset; background-color: var(--color-primary);}
}
.biu-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg, 
        rgba(10, 22, 38, 1) 0%, 
        rgba(10, 22, 38, 0.75) 40%,
        rgba(10, 22, 38, 0.2) 50%, 
        rgba(10, 22, 38, 0) 60%,   
        rgba(10, 22, 38, 0) 100%   
    ), 
    radial-gradient(circle at 80% 20%, rgba(176, 26, 26, 0.18), transparent 55%);
    pointer-events: none;
}
.biu-hero .container { z-index: 2; }

.biu-overheading {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(217, 35, 35, 0.14);
  border-left: 3px solid var(--color-secondary);
  color: var(--color-text-light);
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .08em;
  text-transform: uppercase;
  font-size: .82rem;
  padding: 9px 16px;
  border-radius: var(--radius);
  margin-bottom: 22px;
}
.biu-overheading-tick { color: var(--color-secondary); font-size: 1rem; }

.biu-hero-title {
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
  text-shadow: 0 2px 18px rgba(0,0,0,0.4);
}
.biu-highlight { color: var(--color-secondary); position: relative; }
.biu-highlight::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px; height: 4px;
  background: var(--color-secondary); border-radius: var(--radius);
}

.biu-hero-sub {
  color: rgba(255,255,255,0.86);
  font-size: 1.08rem;
  max-width: 540px;
  margin-bottom: 28px;
}

.biu-trust-grid {
  display: flex; flex-wrap: wrap;
  gap: 10px 18px;
  max-width: 580px;
}
.biu-trust-grid li {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 7px 12px;
  border-radius: var(--radius);
  font-size: .82rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: .02em;
}
.biu-tick { color: var(--color-secondary); font-weight: 800; }
.biu-trust-grid .biu-tick { font-size: .9rem; }

/* ---------- Form card ---------- */
.biu-form-card {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  border-top: 4px solid var(--color-secondary);
  box-shadow: var(--shadow-form);
  overflow: hidden;
}
.biu-form-card-head { padding: 26px 28px 0; }
.biu-form-title {
  font-size: 1.4rem; color: var(--color-text-dark);
  margin-bottom: 6px;
}
.biu-form-sub { color: var(--color-text-muted); font-size: .92rem; }

.biu-quote-form { padding: 22px 28px 28px; display: grid; gap: 16px; }

.biu-quote-form .row { --bs-gutter-x: 16px; --bs-gutter-y: 16px; }

.biu-field { display: flex; flex-direction: column; gap: 6px; }
.biu-field:not(/*.describe-job, */.form-name, .form-phone), .biu-checkbox-row { margin-top: 10px; }

@media (max-width: 767.98px) {
  .biu-field.describe-job { margin-top: 10px; }
  .biu-field.form-phone, .biu-field.form-post-code, .biu-field.upload { margin-top: -6px; }
}


.biu-label {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .76rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-dark);
}
.biu-label .biu-req { color: var(--color-secondary); margin-left: 2px; }

.biu-input,
.biu-select,
.biu-textarea,
.biu-file {
  width: 100%;
  background: var(--color-input-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--color-text-dark);
  transition: border-color .2s var(--ease), box-shadow .2s var(--ease);
  appearance: none;
}
.biu-input::placeholder,
.biu-textarea::placeholder { color: #94a3b8; }
.biu-input:focus,
.biu-select:focus,
.biu-textarea:focus,
.biu-file:focus {
  outline: none;
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(217, 35, 35, 0.15);
}
.biu-textarea { min-height: 90px; resize: vertical; }
.biu-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%230A1626' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}
.biu-file { padding: 10px 12px; cursor: pointer; }
.biu-file::-webkit-file-upload-button {
  background: var(--color-btn-secondary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 14px;
  margin-right: 12px;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .78rem;
  cursor: pointer;
  color: var(--color-text-dark);
  transition: background .2s var(--ease);
}
.biu-file::-webkit-file-upload-button:hover { background: #eef2f7; }
.biu-file::file-selector-button {
  background: var(--color-btn-secondary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 14px;
  margin-right: 12px;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .78rem;
  cursor: pointer;
  color: var(--color-text-dark);
  transition: background .2s var(--ease);
}
.biu-file::file-selector-button:hover { background: #eef2f7; }
.biu-input.invalid,
.biu-select.invalid,
.biu-textarea.invalid,
.biu-file.invalid,
.biu-checkbox-row.invalid .biu-checkbox-box {
  border-color: var(--color-secondary);
  box-shadow: 0 0 0 3px rgba(217, 35, 35, 0.14);
}

.biu-field-error {
  display: none;
  font-size: .78rem;
  color: var(--color-secondary);
  font-weight: 500;
  margin-top: 2px;
}
.biu-field.has-error .biu-field-error { display: block; }
.biu-field.has-error .biu-input,
.biu-field.has-error .biu-select,
.biu-field.has-error .biu-textarea,
.biu-field.has-error .biu-file {
  border-color: var(--color-secondary);
}

/* ---------- Surfaces checkboxes ---------- */
.biu-surfaces {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfd;
}
.biu-surfaces-title {
  font-family: var(--font-head);
  font-weight: 500;
  font-size: .76rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-text-dark);
  margin-bottom: 10px;
}
.biu-surfaces-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}
.biu-surface-opt {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  cursor: pointer;
  font-size: .88rem;
  color: var(--color-text-dark);
  transition: border-color .2s var(--ease), background .2s var(--ease);
  user-select: none;
}
.biu-surface-opt:hover { border-color: #cbd5e1; background: #f8fafc; }
.biu-surface-opt input { accent-color: var(--color-secondary); width: 16px; height: 16px; cursor: pointer; margin: 0; }
.biu-surface-opt input:checked ~ span { color: var(--color-text-dark); font-weight: 600; }
.biu-surface-opt:has(input:checked) {
  border-color: var(--color-secondary);
  background: rgba(217, 35, 35, 0.06);
}

/* ---------- Consent ---------- */
.biu-checkbox-row {
  display: flex; gap: 10px; align-items: flex-start;
  padding: 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: #fbfcfd;
  font-size: .82rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}
.biu-checkbox-row.invalid { border-color: var(--color-secondary); }
.biu-checkbox-box {
  width: 18px; height: 18px;
  flex: 0 0 18px;
  margin-top: 2px;
  accent-color: var(--color-secondary);
  cursor: pointer;
}
.biu-checkbox-row label { cursor: pointer; color: var(--color-text-muted); }
.biu-checkbox-row label a {
  color: var(--color-secondary);
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- Form footer / submit ---------- */
.biu-form-submit { margin-top: 10px; }
.biu-submit-btn {
  width: 100%;
  padding: 16px;
  font-size: 1rem;
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  background: var(--color-secondary);
  color: #fff;
  border: 2px solid var(--color-secondary);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background .2s var(--ease), transform .15s var(--ease), box-shadow .2s var(--ease);
  position: relative;
  overflow: hidden;
}
.biu-submit-btn:hover {
  background: var(--color-secondary-hover);
  border-color: var(--color-secondary-hover);
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(217, 35, 35, 0.36);
}
.biu-submit-btn:active { transform: translateY(0); }
.biu-submit-btn:disabled { opacity: .7; cursor: not-allowed; transform: none; box-shadow: none; }

.biu-spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: biu-spin .7s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-right: 8px;
}
@keyframes biu-spin { to { transform: rotate(360deg); } }

/* ---------- Success state ---------- */
.biu-success {
  display: none;
  text-align: center;
  padding: 36px 20px;
}
.biu-success.show { display: block; animation: biu-fade-up .4s var(--ease) both; }
.biu-success-icon {
  width: 64px; height: 64px;
  margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(34, 197, 94, 0.12);
  color: #16a34a;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 800;
}
.biu-success-title {
  font-family: var(--font-head);
  font-size: 1.4rem;
  color: var(--color-text-dark);
  margin-bottom: 8px;
  text-transform: uppercase;
}
.biu-success-text { color: var(--color-text-muted); margin-bottom: 18px; font-size: .95rem; }
.biu-success-btn {
  background: var(--color-btn-secondary-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 22px;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .82rem;
  cursor: pointer;
  color: var(--color-text-dark);
  transition: background .2s var(--ease);
}
.biu-success-btn:hover { background: #eef2f7; }

/* 2. Жестко форсируем правила для самого селекта */
.biu-select-custom {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  background: #ffffff;
  border: 1px solid #ced4da;
  border-radius: var(--radius);
  padding: 12px 16px;
  cursor: pointer;
  
  /* Убираем min-height, ставим фиксированную высоту железобетонно */
  height: 48px !important;
  max-height: 48px !important;
  
  user-select: none;
  
  /* Заставляем его встать строго по ширине родителя */
  width: 100% !important;
  max-width: 100% !important;
  box-sizing: border-box !important;
  overflow: hidden !important;
}

.biu-select-custom:hover {
  border-color: var(--color-primary);
}

/* 3. Гарантированное троеточие для текста */
.biu-select-placeholder {
  display: block !important; /* Меняем со span-inline на block */
  color: #6c757d;
  font-size: 15px;
  
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  
  flex: 1 1 0% !important; /* Отдаем всё доступное пространство и разрешаем сжатие до 0 */
  min-width: 0 !important;  /* Сбрасываем автоматическую ширину флекса */
  width: 1px;               /* Взлом для некоторых старых версий движков Blink/WebKit */
  margin-right: 8px;
}

.biu-select-placeholder.has-values {
  color: #212529;
  font-weight: 500;
}

/* 4. Защита стрелочки */
.biu-select-arrow {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid #6c757d;
  flex: 0 0 auto !important; /* Стрелка ВСЕГДА сохраняет свои размеры */
}


/* Контейнер списка (Дропдаун / Модалка) */
.biu-select-dropdown {
  display: none;
  position: absolute;
  z-index: 1050;
  background: #ffffff;
  border: 1px solid #ced4da;
  border-radius: 6px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
  margin-top: 4px;
  width: 100%;
  max-height: 360px;
  overflow-y: auto;
}

.biu-select-dropdown.open {
  display: block;
}

.biu-surfaces-list {
  padding: 8px;
}

/* Стили опций внутри списка */
.biu-surface-opt {
  display: flex;
  align-items: center;
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.2s;
  margin: 0 0 8px 0;
  width: 100%;
}

.biu-surface-opt:hover {
  background: #f8f9fa;
}

.biu-surface-opt input[type="checkbox"] {
  margin-right: 12px;
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.biu-surface-opt span {
  font-size: 15px;
  color: #212529;
}

.biu-mobile-modal-footer {
	padding: 16px;
  display: flex;
  background: #f8f9fa;
  border-top: 1px solid #dee2e6;
  flex-shrink: 0;
  touch-action: none;
  position: sticky;
  bottom: 0px;
  left: 0;
  width: 100%;
  justify-content: center;
}

.biu-mobile-modal-footer .biu-btn-primary {
  max-width: 200px;
}

/* 1. Усмиряем родительский контейнер поля */
.biu-field[data-field="surfaces"] {
  position: relative;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 0 !important; /* Разрешаем родителю сжиматься внутри гридов формы */
}

/* ============================================================ */
/* Исправленный Мобильный режим (Полноэкранный оверлей) */
/* ============================================================ */
@media (max-width: 767.98px) {
  .biu-select-dropdown.open {
    display: flex !important;
    flex-direction: column !important;
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    
    /* Решение проблемы с адресной строкой */
    height: 100vh !important;
    height: 100dvh !important; 
    max-height: 100dvh !important;
    
    width: 100vw !important;
    margin: 0 !important;
    border: none !important;
    border-radius: 0 !important;
    z-index: 999999 !important;
    background: #ffffff !important;
  }

  .biu-mobile-modal-header {
    background: var(--color-primary);
    color: #ffffff;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0; /* Запрещаем шапке сжиматься */
    touch-action: none; 
  }
  
  .biu-mobile-modal-header h5 {
    margin: 0;
    font-weight: 600;
  }

  /* Разрешаем скролл ТОЛЬКО для списка элементов */
  .biu-surfaces-list {
    flex: 1 1 auto !important;
    overflow-y: auto !important; 
    -webkit-overflow-scrolling: touch; /* Плавный скролл на iOS */
    padding: 16px 0 !important;
    max-height: none !important; /* Сбрасываем десктопное ограничение */
  }
  
  .biu-surface-opt {
    padding: 16px 20px;
    border-bottom: 1px solid #f1f3f5;
  }

  .biu-mobile-modal-footer {
    padding: 16px;
    background: #f8f9fa;
    border-top: 1px solid #dee2e6;
    flex-shrink: 0;
    touch-action: none;
  }

  .biu-mobile-modal-footer .biu-btn-primary {
    max-width: 100%;
  }

}


/* ---------- Generic sections ---------- */
.biu-section { padding: 88px 0; }
.biu-section-alt { background: #eef2f7; }
.biu-section-dark { background: var(--color-primary); color: var(--color-text-light); }

.biu-section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.biu-badge {
  display: inline-block;
  font-family: var(--font-head);
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  font-size: .74rem;
  color: var(--color-secondary);
  background: rgba(217, 35, 35, 0.1);
  border: 1px solid rgba(217, 35, 35, 0.3);
  padding: 6px 14px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.biu-badge-light {
  color: #fff;
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.25);
}
.biu-section-title {
  font-size: clamp(1.9rem, 3.5vw, 2.6rem);
  font-weight: 800;
  margin-bottom: 14px;
}
.biu-section-title-light { color: #fff; }
.biu-section-desc {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 620px;
  margin: 0 auto;
  margin-bottom: 1rem;
}
.biu-section-dark .biu-section-desc { color: rgba(255,255,255,0.78); }

/* ---------- Services cards ---------- */
.biu-service-row { row-gap: 24px; }
.biu-service-col { display: flex; }
.biu-service-card {
  display: flex; flex-direction: column;
  width: 100%;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}
.biu-service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-secondary);
}
.biu-service-img {
  aspect-ratio: 3 / 4;
  background-size: cover;
  background-position: center;
  position: relative;
  transition: transform .5s var(--ease);
}
.biu-service-card:hover .biu-service-img { transform: scale(1.06); }
.biu-service-img::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,22,38,0.55) 0%, rgba(10,22,38,0) 45%);
}
.biu-service-body {
  padding: 18px 18px 20px;
  border-top: 3px solid var(--color-secondary);
  position: relative;
  flex: 1;
  background-color: white;
}
.biu-service-num {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--color-secondary);
  font-size: .8rem;
  letter-spacing: .1em;
}
.biu-service-name {
  font-size: 1.1rem;
  margin: 6px 0 8px;
  color: var(--color-text-dark);
}
.biu-service-desc { font-size: .88rem; color: var(--color-text-muted); line-height: 1.5; }

/* ---------- About ---------- */
.biu-about-text {
  color: rgba(255,255,255,0.85);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-top: 18px;
  max-width: 620px;
}
.biu-areas { margin-top: 32px; padding-top: 28px; border-top: 1px solid rgba(255,255,255,0.15); }
.biu-areas-title {
  color: #fff;
  font-size: 1.2rem;
  margin-bottom: 16px;
}
.biu-areas-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.biu-areas-list li {
  display: flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,0.92);
  font-weight: 500;
  font-size: .96rem;
}

.biu-areas-list a {
  color: rgba(255,255,255,0.92)!important;
}

.biu-feature-block {
  background: var(--color-bg-card);
  border-radius: var(--radius);
  border-left: 4px solid var(--color-secondary);
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
}
.biu-feature-title {
  font-size: 1.3rem;
  margin-bottom: 18px;
  color: var(--color-text-dark);
}
.biu-feature-list { display: grid; gap: 12px; margin-bottom: 22px; }
.biu-feature-list li {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px;
  background: var(--color-bg-main);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-weight: 500;
  color: var(--color-text-dark);
  font-size: .94rem;
}
.biu-feature-list .biu-tick {
  display: inline-flex; align-items: center; justify-content: center;
  width: 22px; height: 22px;
  background: rgba(217,35,35,0.12);
  border-radius: var(--radius);
  font-size: .8rem;
  flex: 0 0 22px;
}

.biu-whyus-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px 30px;
    max-width: 100%;
}@media (max-width: 767.98px) {
    .biu-whyus-list {
        grid-template-columns: 1fr;
    }
}

.biu-whyus-list li {
  display: flex;
  flex-direction: row;
  gap: 10px;
}

.biu-whyus-list li strong {
  display: inline-block;
  min-width: 30%;
}

/* ---------- Process ---------- */
.biu-process {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  position: relative;
}
.biu-process::before {
  content: "";
  position: absolute;
  top: 36px; left: 16%; right: 16%; height: 2px;
  background: repeating-linear-gradient(to right, var(--color-border) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.biu-process-step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 16px;
}
.biu-process-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--color-bg-card);
  border: 3px solid var(--color-secondary);
  color: var(--color-secondary);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.3rem;
  margin-bottom: 18px;
  box-shadow: var(--shadow-card);
  transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease);
}
.biu-process-step:hover .biu-process-num {
  background: var(--color-secondary);
  color: #fff;
  transform: scale(1.06);
}
.biu-process-title {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--color-text-dark);
}
.biu-process-desc { font-size: .9rem; color: var(--color-text-muted); line-height: 1.5; }

/* ---------- Contact points ---------- */
.biu-points, .biu-contact-points { display: grid; gap: 12px; margin-top: 24px; }
.biu-points li, .biu-contact-points li {
  display: flex; align-items: center; gap: 10px;
  color: var(--color-text-dark);
  font-weight: 500;
  font-size: .96rem;
}
.biu-points li strong {
  width: 35%;
  min-width: 35%;
  display: inline-block;
}
/* ---------- FAQ ---------- */
.biu-accordion { gap: 12px; display: flex; flex-direction: column; }
.biu-accordion-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius) !important;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(10,22,38,0.04);
  margin: 0;
}
.biu-accordion-btn {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: .02em;
  color: var(--color-text-dark);
  padding: 20px 24px;
  background: var(--color-bg-card);
  border: none;
  border-left: 4px solid var(--color-border);
  border-radius: 0;
  transition: border-color .2s var(--ease), background .2s var(--ease);
  width: 100%;
  text-align: left;
}
.biu-accordion-btn:hover { background: #fbfcfd; }
.biu-accordion-btn:not(.collapsed) {
  background: var(--color-bg-card);
  color: var(--color-secondary);
  border-left-color: var(--color-secondary);
  box-shadow: none;
}
.biu-accordion-btn:focus { box-shadow: inset 0 0 0 3px rgba(217,35,35,0.12); border-color: var(--color-border); }
.biu-accordion-btn::after { background-image: none; font-size: 1.4rem; }
.biu-accordion-btn::after {
  content: "+";
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--color-secondary);
  transform: none !important;
  transition: transform .25s var(--ease);
  background: none;
  width: auto; height: auto;
  font-size: 1.5rem;
  line-height: 1;
  background-image: unset!important;
}
.biu-accordion-btn:not(.collapsed)::after { content: "−"; }
.biu-accordion-body {
  padding: 4px 24px 24px;
  color: var(--color-text-muted);
  font-size: .98rem;
  line-height: 1.6;
  border-left: 4px solid var(--color-secondary);
}

/* ---------- Modals ---------- */
.biu-modal-content {
  border-radius: var(--radius);
  border: none;
  border-top: 4px solid var(--color-secondary);
  box-shadow: 0 30px 80px rgba(10,22,38,0.4);
}
.biu-modal-header {
  background: var(--color-primary);
  color: #fff;
  border-radius: 0;
  padding: 18px 24px;
}
.biu-modal-header .modal-title {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: 1.1rem;
  color: #fff;
}
.biu-modal-body { padding: 28px 26px; color: var(--color-text-muted); font-size: .98rem; line-height: 1.7; }
.biu-modal-footer { border-top: 1px solid var(--color-border); padding: 14px 24px; }

/* ---------- Footer ---------- */
.footer {
  background-color: var(--color-primary) !important;
}
.biu-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.78);
  padding: 64px 0 0;
  border-top: 3px solid var(--color-secondary);
}
.biu-footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.biu-footer-logo {
  width: 40px; height: 40px;
  object-fit: cover;
  border-radius: var(--radius);
  background: #fff;
}
.biu-footer-brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  color: #fff;
  letter-spacing: .08em;
  font-size: .9rem;
}
.biu-footer-tagline { font-size: .9rem; color: rgba(255,255,255,0.65); line-height: 1.6; max-width: 320px; }
.biu-footer-title {
  color: #fff;
  font-size: .95rem;
  letter-spacing: .08em;
  margin-bottom: 16px;
  position: relative;
  padding-bottom: 10px;
}
.biu-footer-title::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px;
  background: var(--color-secondary);
}
.biu-footer-list { display: grid; gap: 10px; }
.biu-footer-list li { color: rgba(255,255,255,0.7); font-size: .9rem; }
.biu-footer-list a { color: rgba(255,255,255,0.7); transition: color .2s var(--ease); }
.biu-footer-list a:hover { color: var(--color-secondary); }
.biu-footer-cta { margin-top: 18px; }
.biu-footer-bottom {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid rgba(255,255,255,0.12);
  text-align: center;
}
.biu-footer-bottom p { color: rgba(255,255,255,0.5); font-size: .82rem; margin: 0; }

/* ---------- Mini-hero ---------- */
.mini-hero-section {
  background-color: var(--color-primary);
  min-height: 330px;
}

.mini-hero-section .breadcrumb-item {
  z-index: 2;
}

.breadcrumb-item+.breadcrumb-item::before {
    color: var(--color-secondary);
}

.mini-hero-text-block {
  margin-bottom: -50px;
}
.mini-hero-subtitle {
  color: var(--color-text-subtle);
}
/* ---------- Reveal animations ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease), transform .6s var(--ease);
  will-change: opacity, transform;
}
[data-reveal].in { opacity: 1; transform: none; }

@keyframes biu-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 991.98px) {
  .biu-nav { padding: 10px 0; }
  .biu-nav-links { padding: 12px 0; border-top: 1px solid rgba(255,255,255,0.12); margin-top: 12px; }
  .biu-nav-links .nav-link { padding: 10px 4px !important; }
  .biu-nav-links .nav-link::after { display: none; }
  .biu-nav-cta { margin-top: 12px; width: 100%; }
  .biu-hero { padding: 110px 0 70px; }
  .biu-process { grid-template-columns: repeat(2, 1fr); gap: 32px 16px; }
  .biu-process::before { display: none; }
}

@media (max-width: 767.98px) {
  .biu-section { padding: 60px 0; }
  .biu-section-head { margin-bottom: 36px; }
  .biu-hero { padding: 100px 0 56px; }
  .biu-hero-title { font-size: 2.1rem; }
  .biu-hero-sub { font-size: 1rem; }
  .biu-form-card-head { padding: 22px 20px 0; }
  .biu-quote-form { padding: 18px 20px 22px; }
  .biu-surfaces-grid { grid-template-columns: 1fr; }
  .biu-areas-list { grid-template-columns: 1fr; }
  .biu-process { grid-template-columns: 1fr; gap: 28px; }
  .biu-service-col { margin-bottom: 0; }
  .biu-footer { padding: 48px 0 0; }
}

@media (max-width: 575.98px) {
  .biu-brand-line1 { font-size: .92rem; }
  .biu-brand-line2 { font-size: .64rem; }
  .biu-hero-title { font-size: 1.85rem; }
  .biu-overheading { font-size: .74rem; }
  .biu-trust-grid li { font-size: .76rem; padding: 6px 10px; }
  .biu-modal-body { padding: 22px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  [data-reveal] { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}

/* Изменение фона навигации при начале скролла */
#topNav.scrolled {
    background-color: var(--color-primary) !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1); /* Опционально: легкая тень, чтобы отделить от контента */
    transition: background-color 0.3s ease, box-shadow 0.3s ease; /* Плавный переход */
}

/* Базовое состояние (до скролла) для плавности в обе стороны */
#topNav {
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
}