/**
 * ---------- Design tokens ----------
 * Primary #17457a привязан к реальному логотипу компании — не менять
 * без замены логотипа. Остальная палитра построена вокруг него.
 *
 * Typography scale (документация; конкретные значения — в местах
 * применения ниже по файлу):
 *   H1 (hero)    52px / 800 / 1.15 / -0.02em   (34px на мобильных)
 *   H1 (.page-title, внутренние страницы) 40px / 800 / 1.2 / -0.015em
 *   H2           36px / 700 / 1.2  / -0.01em   (26px на мобильных)
 *   H3           22px / 700 / 1.3  / normal
 *   H4           17px / 700 / 1.4  / normal
 *   Body Large   18px / 400 / 1.5
 *   Body         16px / 400 / 1.6
 *   Body Small   14px / 400 / 1.5
 *   Caption      12–13px / 600 / uppercase / 0.06–0.08em
 *   Button       16px / 600
 *   Navigation   15px / 600
 */
:root {
  /* Primary — привязан к логотипу, см. комментарий выше */
  --color-primary: #17457a;
  --color-primary-dark: #0f2f52;
  --color-primary-light: #e9eff6;

  /* Neutral */
  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-secondary: #f4f6f8;
  --color-border: #e4e6ea;
  --color-border-strong: #d7dbe0;
  --color-text: #1a1d23;
  --color-text-secondary: #5c616a;
  --color-text-muted: #6b6f76;

  /* Semantic */
  --color-success: #1e7a4c;
  --color-warning: #955c09;
  --color-error: #c0392b;

  /* Алиасы для обратной совместимости — не удалять, используются по всему CSS */
  --color-accent: var(--color-primary);
  --color-accent-dark: var(--color-primary-dark);
  --color-bg-section: var(--color-surface-secondary);
  --color-line: var(--color-border);
  --color-line-strong: var(--color-border-strong);
  --color-text-tertiary: var(--color-text-muted);

  --font-heading: "Inter", sans-serif;
  --font-body: "Inter", sans-serif;

  --space-half: 4px;
  --space-1: 8px;
  --space-1-5: 12px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --space-12: 96px;
  --space-16: 128px;

  --container-max: 1440px;
  --side-gutter: 120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  margin: 0;
  color: var(--color-text);
}

p {
  margin: 0;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent-dark);
}

img {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--side-gutter);
  padding-right: var(--side-gutter);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  padding: 16px 32px;
  border: 1px solid transparent;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 150ms ease-out, color 150ms ease-out, border-color 150ms ease-out, opacity 150ms ease-out;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #ffffff;
}

.btn-outline {
  border-color: var(--color-accent);
  color: var(--color-accent);
  padding: 10px 22px;
  font-size: 15px;
}

.btn-outline:hover {
  background: var(--color-accent);
  color: #ffffff;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-weight: 600;
  font-size: 16px;
  color: var(--color-accent);
}

.link-arrow svg {
  transition: transform 150ms ease-out;
}

.link-arrow:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

.link-arrow:hover svg {
  transform: translateX(4px);
}

/* ---------- Header ---------- */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: 14px var(--side-gutter);
  position: sticky;
  top: 0;
  z-index: 100;
}

/* Frosted-glass background lives on a pseudo-element (not on .site-header
   itself) because backdrop-filter on an ancestor becomes the containing
   block for its position:fixed descendants — that broke the fixed
   full-screen mobile menu, which is nested inside the header. */
.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-text);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo-img {
  height: 26px;
  width: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.main-nav a {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.main-nav a:hover {
  color: var(--color-accent);
}

.main-nav a.is-active {
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 4px;
}

/* ---------- Primary nav (5 core sections, flat style) ---------- */

.nav-primary {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-primary > a,
.nav-primary > .nav-item-dropdown > .nav-dropdown-trigger {
  color: rgba(29, 29, 31, 0.86);
  padding: 4px 0;
  border-radius: 0;
  border-bottom: none;
  font-size: 13px;
  font-weight: 400;
}

.nav-primary > a:hover,
.nav-primary > .nav-item-dropdown > .nav-dropdown-trigger:hover {
  color: rgba(29, 29, 31, 1);
  background: none;
}

.nav-primary > a:focus-visible,
.nav-primary > .nav-item-dropdown > .nav-dropdown-trigger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.nav-primary > a.is-active,
.nav-primary > .nav-item-dropdown > .nav-dropdown-trigger.is-active {
  background: none;
  color: var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  padding-bottom: 4px;
}

.nav-primary .nav-dropdown-chevron {
  width: 8px;
  height: 8px;
  color: currentColor;
}

.nav-primary .nav-dropdown-menu {
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
}

/* ---------- Secondary nav (utility, right of pill) ---------- */

.nav-secondary .nav-dropdown-trigger {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.nav-secondary .nav-dropdown-trigger:hover {
  color: var(--color-accent);
}

/* ---------- Nav dropdowns ---------- */

.nav-item-dropdown {
  position: relative;
}

.nav-dropdown-trigger {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text);
}

.nav-dropdown-trigger:hover {
  color: var(--color-accent);
}

.nav-dropdown-trigger.is-active {
  color: var(--color-accent);
}

.nav-dropdown-trigger:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.nav-dropdown-chevron {
  flex-shrink: 0;
  transition: transform 150ms ease-out;
}

.nav-item-dropdown.is-open .nav-dropdown-chevron {
  transform: rotate(180deg);
}

.nav-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 300px;
  background: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px;
  box-shadow: 0 20px 48px rgba(15, 47, 82, 0.14);
  padding: 22px 8px;
  overflow: hidden;
  z-index: 50;
}

.nav-item-dropdown.is-open .nav-dropdown-menu {
  display: block;
}

.nav-dropdown-group-label {
  padding: 6px 22px 8px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.nav-dropdown-group-label:not(:first-child) {
  margin-top: 6px;
}

.nav-dropdown-menu a {
  display: block;
  width: calc(100% - 12px);
  margin: 0 6px;
  padding: 11px 22px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  color: var(--color-text);
  white-space: nowrap;
}

.nav-dropdown-menu a:hover {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
}

.nav-dropdown-menu a:focus-visible {
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  outline: none;
}

@media (min-width: 901px) {
  .nav-item-dropdown:hover .nav-dropdown-menu {
    display: block;
  }
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.header-icons {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  transition: color 150ms ease-out, border-color 150ms ease-out;
}

.header-icon-link:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.header-icon-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (max-width: 900px) {
  .header-icons {
    display: none;
  }
}

.header-actions .btn {
  padding: 8px 16px;
  font-size: 13px;
  border-radius: 8px;
  white-space: nowrap;
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 12px;
  font-weight: 600;
}

.lang-switch button {
  background: none;
  border: none;
  padding: 4px 6px;
  color: var(--color-text-tertiary);
}

.lang-switch button[aria-current="true"] {
  color: var(--color-accent);
}

.lang-switch button:not([aria-current="true"]):hover {
  color: var(--color-text);
}

.lang-switch button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  border-radius: 4px;
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--space-16) var(--side-gutter);
  overflow: hidden;
  text-align: center;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.eyebrow {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero-content h1 {
  font-weight: 800;
  font-size: 52px;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.hero-content p {
  font-size: 18px;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

/* ---------- Hero photo (пробный вариант по референсу владельца) ---------- */

.hero-photo {
  position: relative;
  min-height: 620px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  overflow: hidden;
  padding: var(--space-6) var(--side-gutter);
  text-align: center;
}

.hero-photo-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-photo-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-photo-heading {
  position: absolute;
  top: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--color-primary-dark);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin: 0;
  white-space: nowrap;
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.7);
}

.hero-photo-tagline {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(26px, 4.2vw, 42px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--color-primary-dark);
  margin-top: var(--space-3);
  max-width: 900px;
  text-shadow: 0 2px 24px rgba(255, 255, 255, 0.5);
}

.hero-photo-quote-author {
  margin-top: var(--space-2);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-shadow: 0 1px 12px rgba(255, 255, 255, 0.7);
}

.hero-photo-content .hero-actions {
  margin-top: var(--space-4);
  justify-content: center;
}

.hero-photo-link {
  background: rgba(255, 255, 255, 0.9);
  padding: 12px 20px;
  border-radius: 999px;
}

.hero-photo-compliance {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: var(--space-6);
  max-width: 480px;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: 12px;
  box-shadow: 0 10px 28px rgba(15, 47, 82, 0.14);
  text-align: left;
}

.hero-photo-compliance-icon {
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--color-success);
}

.hero-photo-compliance span {
  font-size: 13px;
  line-height: 1.55;
  color: var(--color-text-secondary);
}

@media (max-width: 640px) {
  .hero-photo {
    min-height: 460px;
    padding: var(--space-4) var(--space-3);
  }

  .hero-photo-heading {
    position: static;
    transform: none;
    margin-bottom: var(--space-2);
    white-space: normal;
    font-size: 13px;
  }
}

.page-banner {
  width: 100%;
  height: 340px;
  overflow: hidden;
}

.page-banner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  margin-top: var(--space-1);
  flex-wrap: wrap;
}

/* ---------- Stats ---------- */

.stats {
  background: var(--color-bg-section);
  padding: var(--space-6) var(--side-gutter);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
}

.stat {
  border-left: 1px solid var(--color-line-strong);
  padding-left: var(--space-3);
}

.stat.is-live {
  border-left-color: var(--color-accent);
}

.stat-flag {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.stat-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
}

.stat-flag span {
  font-weight: 600;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.stat-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 36px;
  color: var(--color-accent);
  margin-top: 10px;
  font-variant-numeric: tabular-nums;
}

.stat-caption {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

/* ---------- Section heading ---------- */

.section {
  padding: var(--space-12) var(--side-gutter);
}

.section-heading {
  font-weight: 700;
  font-size: 36px;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.team-section-heading {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
  font-size: 22px;
  line-height: 1.3;
}

/* ---------- Page-end CTA band (values/team/certificates) ---------- */

.page-cta {
  background: var(--color-accent);
  padding: var(--space-12) var(--side-gutter);
  text-align: center;
}

.page-cta h2 {
  color: #ffffff;
  font-weight: 700;
  font-size: 28px;
}

.page-cta p {
  color: #c9d3dd;
  font-size: 16px;
  margin: var(--space-2) auto 0;
  max-width: 480px;
}

.page-cta .btn {
  margin-top: var(--space-4);
}

.section-subtitle {
  font-size: 16px;
  color: var(--color-text-secondary);
  margin-top: var(--space-2);
  max-width: 640px;
}

/* ---------- Services (card grid) ---------- */

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  margin-top: var(--space-6);
}

.service-card {
  background: var(--color-surface);
  padding: var(--space-4);
  transition: background-color 150ms ease-out;
}

.service-card:last-child {
  grid-column: span 2;
}

.service-card-icon {
  color: var(--color-primary);
}

.service-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin-top: var(--space-2);
}

.service-card-items {
  margin-top: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-card-items li {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  padding-left: 14px;
  position: relative;
}

.service-card-items li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* ---------- Industry chips (реальные sector-теги из #projects) ---------- */

.industry-chips-label {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-top: var(--space-6);
}

.industry-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1-5);
  margin-top: var(--space-2);
}

.industry-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  font-weight: 600;
  font-size: 13px;
}

/* ---------- Projects grid / Benefits grid ---------- */

.project-grid,
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: var(--space-6);
}

.project-card,
.benefit-card {
  background: #ffffff;
  padding: var(--space-4);
  transition: background-color 150ms ease-out;
}

.project-card:hover,
.benefit-card:hover,
.service-card:hover {
  background: var(--color-primary-light);
}

.project-sector {
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.project-client,
.benefit-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
  margin-top: 14px;
}

.project-desc,
.benefit-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
  line-height: 1.5;
}

.benefit-icon {
  color: var(--color-accent);
}

/* ---------- Subpage title + form panel (shared: Partners, Quality) ---------- */

.page-title {
  font-weight: 800;
  font-size: 40px;
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin-top: var(--space-2);
}

.partners-intro .section-subtitle {
  max-width: 720px;
}

/* ---------- Partners agency cabinet entry point ---------- */

.partners-cabinet-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  background: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: var(--space-4) var(--space-6);
  margin-top: var(--space-6);
}

.partners-cabinet-card h2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
}

.partners-cabinet-card p {
  margin-top: 6px;
  font-size: 15px;
  color: var(--color-text-secondary);
  max-width: 480px;
}

.partners-cabinet-note {
  margin-top: var(--space-2);
  font-size: 13px;
  color: var(--color-text-muted);
}

.partners-form-section {
  background: var(--color-bg-section);
  padding: var(--space-12) var(--side-gutter);
  display: flex;
  justify-content: center;
}

.corporate-form {
  margin-top: var(--space-6);
}

.form-field-file label {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  margin-bottom: 6px;
}

.form-field-file input[type="file"] {
  font-size: 14px;
  padding-bottom: 8px;
}

.form-field-hint {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.form-panel {
  width: 100%;
  max-width: 640px;
  border: 1px solid var(--color-accent);
  border-radius: 16px;
  background: #ffffff;
  padding: var(--space-6);
}

.form-panel-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-top: 12px;
}

.form-fields {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-tertiary);
  margin-bottom: 6px;
}

.form-field input,
.form-field select,
.form-field textarea {
  display: block;
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-line);
  padding-bottom: 10px;
  transition: border-color 150ms ease-out;
}

.form-field input:focus-visible,
.form-field select:focus-visible,
.form-field textarea:focus-visible {
  outline: none;
  border-bottom-color: var(--color-primary);
}

.form-field input:disabled,
.form-field select:disabled,
.form-field textarea:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-field.has-error input,
.form-field.has-error select,
.form-field.has-error textarea {
  border-bottom-color: var(--color-error);
}

.form-field-error {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  color: var(--color-error);
}

.form-field-error[hidden] {
  display: none;
}

.form-field textarea {
  border: 1px solid var(--color-line);
  padding: 14px;
  min-height: 80px;
  resize: vertical;
}

.form-field.has-error textarea {
  border-color: var(--color-error);
  border-bottom-color: var(--color-error);
}

.form-field textarea:focus-visible {
  border-color: var(--color-primary);
}

.form-field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10' fill='none'%3E%3Cpath d='M2 3.5L5 6.5L8 3.5' stroke='%238a8f97' stroke-width='1.3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 2px center;
  padding-right: 20px;
  cursor: pointer;
}

.form-field input::placeholder,
.form-field textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: var(--space-1);
}

.form-submit {
  width: 100%;
  justify-content: center;
  border: none;
}

.form-whatsapp-btn {
  width: 100%;
  justify-content: center;
  gap: 8px;
  color: var(--color-success);
  border-color: var(--color-success);
}

.form-whatsapp-btn:hover {
  background: var(--color-success);
  color: #ffffff;
}

.form-status {
  font-size: 14px;
  font-weight: 600;
  text-align: center;
  padding: var(--space-2);
  border-radius: 10px;
}

.form-status.is-sending {
  color: var(--color-text-secondary);
}

.form-status.is-success {
  color: var(--color-success);
  background: var(--color-primary-light);
}

.form-status.is-error {
  color: var(--color-error);
  background: rgba(192, 57, 43, 0.08);
}

.form-field select option[disabled] {
  font-weight: 700;
  color: var(--color-text-tertiary);
}

.form-field-qty input {
  max-width: 120px;
}

.form-field-checkbox label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text);
  cursor: pointer;
}

.form-field-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.form-total {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-bg-section);
  border-radius: 10px;
}

.form-total-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.form-total-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 20px;
  color: var(--color-primary-dark);
}

.form-referral-note {
  font-size: 13px;
  line-height: 1.5;
  color: var(--color-warning);
  margin-top: -4px;
}

/* ---------- Quality control page ---------- */

.quality-grid {
  display: flex;
  gap: var(--space-8);
  margin-top: var(--space-6);
  align-items: flex-start;
}

.quality-text {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.quality-qa h3 {
  font-weight: 700;
  font-size: 19px;
}

.quality-qa p {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-top: var(--space-1);
}

.quality-form-wrap {
  flex: 0 0 420px;
}

@media (max-width: 900px) {
  .quality-grid {
    flex-direction: column;
  }

  .quality-form-wrap {
    flex: 1;
    width: 100%;
  }
}

/* ---------- Reviews ---------- */

.review-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  overflow: hidden;
  margin-top: var(--space-6);
}

.review-card {
  background: #ffffff;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.review-text {
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text);
  flex: 1;
}

.review-author {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--color-text-tertiary);
}

.reviews-more,
.projects-more,
.useful-more {
  margin-top: var(--space-4);
}

/* ---------- Certificates page ---------- */

.cert-list {
  margin-top: var(--space-6);
  max-width: 760px;
  border-top: 1px solid var(--color-line);
}

.cert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-line);
}

.cert-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
}

.cert-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 4px;
}

.cert-logo {
  height: 36px;
  width: auto;
  flex-shrink: 0;
}

.cert-status {
  flex-shrink: 0;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 12px;
  border-radius: 999px;
}

.cert-status-pending {
  color: var(--color-text-tertiary);
  background: var(--color-bg-section);
}

.cert-note {
  margin-top: var(--space-3);
  font-size: 13px;
  font-style: italic;
  color: var(--color-text-tertiary);
  max-width: 760px;
}

/* ---------- Pricing / tariffs page ---------- */

.pricing-cat {
  margin-top: var(--space-8);
}

.pricing-cat:first-of-type {
  margin-top: var(--space-6);
}

.pricing-cat-heading {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 22px;
  line-height: 1.3;
  margin-bottom: var(--space-3);
}

.pricing-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: 14px;
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 560px;
}

.pricing-table th {
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-section);
  border-bottom: 1px solid var(--color-line);
}

.pricing-table th:last-child,
.pricing-table td:last-child {
  text-align: right;
}

.pricing-table td {
  font-size: 15px;
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-line);
  vertical-align: top;
}

.pricing-table tr:last-child td {
  border-bottom: none;
}

.pricing-table td:nth-child(2) {
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.pricing-table td:last-child {
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--color-primary-dark);
  white-space: nowrap;
}

.pricing-note {
  margin-top: var(--space-4);
  font-size: 14px;
  color: var(--color-text-secondary);
}

.pricing-corporate-cta {
  margin-top: var(--space-6);
  padding: var(--space-4);
  background: var(--color-bg-section);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.pricing-corporate-cta p {
  font-size: 15px;
  font-weight: 600;
  max-width: 480px;
}

/* ---------- Director's address ---------- */

.director-letter {
  max-width: 760px;
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-line);
}

.director-photo {
  float: right;
  width: 132px;
  height: 132px;
  border-radius: 50%;
  object-fit: cover;
  shape-outside: circle(50%);
  shape-margin: 10px;
  margin: 4px 0 20px 28px;
}

.director-letter p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
  margin-top: var(--space-3);
}

.director-letter p:first-of-type {
  margin-top: 0;
}

.director-greeting {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  color: var(--color-text) !important;
}

.director-signature {
  clear: both;
  margin-top: var(--space-2);
}

.director-signature-name {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
}

.director-signature-line {
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* ---------- Useful ---------- */

.section-useful {
  background: var(--color-bg-section);
}

.useful-panel {
  margin-top: var(--space-6);
  background: #ffffff;
  border: 1px solid var(--color-line);
  border-radius: 16px;
  padding: var(--space-6);
  max-width: 640px;
}

.useful-panel p {
  font-size: 16px;
  color: var(--color-text-secondary);
}

.status-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

/* ---------- About intro (narrative) ---------- */

.about-intro-text {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 800px;
  margin-top: var(--space-4);
}

.about-intro-text p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.privacy-body {
  margin-top: var(--space-6);
}

.privacy-body strong {
  color: var(--color-text);
}

.privacy-list {
  max-width: 800px;
  padding-left: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.privacy-list li {
  list-style: disc;
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.about-intro-statement {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.5;
  color: var(--color-accent) !important;
  margin-top: var(--space-1);
}

/* ---------- About ---------- */

.about {
  background: var(--color-accent);
  color: #ffffff;
  padding: var(--space-12) var(--side-gutter);
  display: flex;
  gap: var(--space-8);
  justify-content: space-between;
}

.about-content {
  max-width: 460px;
}

.about h2 {
  font-weight: 700;
  font-size: 32px;
  color: #ffffff;
}

.about-body {
  font-size: 16px;
  line-height: 1.6;
  color: #c9d3dd;
  margin-top: var(--space-3);
}

.about-more-link {
  margin-top: var(--space-3);
  color: #ffffff;
}

.about-more-link:hover {
  color: #c9d3dd;
}

.trust-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  min-width: 380px;
}

.trust-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 16px;
}

.trust-list svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.trust-list-on-light svg {
  color: var(--color-primary);
}

.trust-badge-group {
  margin-top: var(--space-1);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.trust-badge-group + .trust-badge-group {
  margin-top: var(--space-3);
  padding-top: 0;
  border-top: none;
}

.trust-badge-label {
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #aabdd2;
  margin-bottom: var(--space-2);
}

.trust-badges {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.trust-badge {
  background: #ffffff;
  padding: 10px 14px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.trust-badge img {
  height: 28px;
  width: auto;
}

/* ---------- Contacts ---------- */

.contact {
  padding: var(--space-12) var(--side-gutter);
  display: flex;
  gap: var(--space-8);
}

.contact-info {
  min-width: 360px;
}

.contact-list {
  margin-top: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  font-size: 16px;
}

.contact-list span {
  color: var(--color-text-tertiary);
}

.whatsapp-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-success);
  font-weight: 600;
}

.whatsapp-link:hover {
  text-decoration: underline;
}

/* ---------- Process steps ("Как мы работаем") ---------- */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6);
  margin-top: var(--space-6);
}

.process-step-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 34px;
  color: var(--color-accent);
  opacity: 0.3;
}

.process-step-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 17px;
  margin-top: var(--space-1);
}

.process-step-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin-top: 6px;
  line-height: 1.5;
}

/* ---------- FAQ accordion ---------- */

.faq-list {
  margin-top: var(--space-6);
  max-width: 760px;
  border-top: 1px solid var(--color-line);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
  padding: var(--space-3) 0;
}

.faq-item summary {
  cursor: pointer;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: 4px;
}

.faq-item summary::after {
  content: "+";
  font-size: 22px;
  font-weight: 400;
  color: var(--color-accent);
  flex-shrink: 0;
  transition: transform 150ms ease-out;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  margin-top: var(--space-3);
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

.contact-form {
  margin-top: var(--space-6);
  max-width: 420px;
}

.contact-form h3 {
  font-weight: 700;
  font-size: 19px;
}

.contact-form .form-fields {
  margin-top: var(--space-3);
}

.contact-map {
  flex: 1;
  min-height: 320px;
  background: var(--color-bg-section);
  border: 1px solid var(--color-line);
  border-radius: 16px;
  overflow: hidden;
}

.contact-map iframe {
  display: block;
  border: none;
  width: 100% !important;
  height: 100% !important;
  min-height: 320px;
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-line);
  padding: var(--space-8) var(--side-gutter) var(--space-4);
}

.footer-columns {
  display: flex;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .logo {
  font-size: 18px;
}

.footer-brand .logo-img {
  height: 28px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--color-text-tertiary);
  margin-top: var(--space-2);
  line-height: 1.6;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col-heading {
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.footer-col a {
  font-size: 15px;
  color: var(--color-text);
}

.footer-col a:hover,
.footer-bottom-links a:hover {
  color: var(--color-primary);
}

.footer-col a:focus-visible,
.footer-bottom-links a:focus-visible,
.logo:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 2px;
}

.footer-legal-note {
  margin-top: var(--space-6);
  font-size: 12px;
  line-height: 1.5;
  color: var(--color-text-tertiary);
  max-width: 760px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid var(--color-line);
  flex-wrap: wrap;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-3);
}

.footer-bottom, .footer-bottom-links a {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

/* ---------- Scroll reveal ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 400ms ease-out, transform 400ms ease-out;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 1280px) {
  :root {
    --side-gutter: 80px;
  }
}

@media (max-width: 900px) {
  :root {
    --side-gutter: 24px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
  }

  .lang-switch {
    order: 2;
  }

  body.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-6);
    position: fixed;
    inset: 0;
    top: 68px;
    background: #ffffff;
    padding: var(--space-4) var(--side-gutter);
    z-index: 40;
    overflow-y: auto;
    overflow-x: hidden;
  }

  .nav-primary,
  .nav-secondary {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
    background: none;
    border-radius: 0;
    padding: 0;
    width: 100%;
  }

  .nav-primary > a,
  .nav-primary > .nav-item-dropdown > .nav-dropdown-trigger {
    color: var(--color-text);
    padding: 0;
    border-radius: 0;
  }

  .nav-primary > a:hover,
  .nav-primary > .nav-item-dropdown > .nav-dropdown-trigger:hover {
    background: none;
    color: var(--color-accent);
  }

  .nav-primary > a.is-active,
  .nav-primary > .nav-item-dropdown > .nav-dropdown-trigger.is-active {
    background: none;
    color: var(--color-accent);
  }

  .hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-8);
  }

  .hero-content h1 {
    font-size: 34px;
  }

  .stats {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .section {
    padding-top: var(--space-6);
    padding-bottom: var(--space-6);
  }

  .section-heading {
    font-size: 26px;
  }

  .project-grid,
  .process-grid,
  .services-grid,
  .benefits-grid,
  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .about {
    flex-direction: column;
  }

  .trust-list {
    min-width: 0;
  }

  .contact {
    flex-direction: column;
  }

  .contact-info {
    min-width: 0;
  }

  .footer-columns {
    flex-direction: column;
    gap: var(--space-4);
  }

  .nav-item-dropdown {
    width: 100%;
  }

  .nav-dropdown-trigger {
    width: 100%;
    justify-content: space-between;
  }

  .nav-dropdown-menu,
  .nav-primary .nav-dropdown-menu {
    position: static;
    left: auto;
    transform: none;
    border: none;
    box-shadow: none;
    padding: var(--space-1) 0 0 var(--space-2);
  }

  .nav-dropdown-menu a {
    width: auto;
    margin: 0;
    padding: 8px 0;
    border-radius: 0;
    white-space: normal;
  }

  .nav-dropdown-menu a:hover,
  .nav-dropdown-menu a:focus-visible {
    background: none;
  }

  .nav-dropdown-group-label {
    padding: 6px 0 4px;
  }

  .director-photo {
    float: none;
    display: block;
    margin: 0 0 var(--space-3);
  }
}

/* ---------- True mobile: single column (390px reference) ---------- */

@media (max-width: 640px) {
  .project-grid,
  .process-grid,
  .services-grid,
  .benefits-grid,
  .review-grid {
    grid-template-columns: 1fr;
  }

  .service-card:last-child {
    grid-column: span 1;
  }

  .page-banner {
    height: 200px;
  }
}