/* =========================================================
   lan01.ru — корпоративный сайт
   Одностраничный сайт: чистый CSS без сборщиков
   ========================================================= */

/* ---------- Переменные ---------- */
:root {
  --bg: #ffffff;
  --bg-alt: #f4f6fb;
  --ink: #101a2e;
  --ink-soft: #46536b;
  --ink-faint: #6b7789;
  --line: #e4e9f2;
  --accent: #2563eb;
  --accent-dark: #1d4fd8;
  --accent-soft: #eaf1fe;
  --dark: #0d1f3d;
  --dark-2: #0a1730;
  --dark-line: rgba(255, 255, 255, 0.12);
  --dark-text: #b9c4d8;
  --radius: 14px;
  --header-h: 72px;
  --container: 1180px;
  --shadow-card: 0 1px 2px rgba(16, 26, 46, 0.04), 0 8px 24px -12px rgba(16, 26, 46, 0.10);
  --shadow-pop: 0 12px 40px -8px rgba(16, 26, 46, 0.18);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---------- Сброс ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  margin: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul,
ol {
  list-style: none;
  padding: 0;
}

button {
  font: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input,
textarea {
  font: inherit;
  color: var(--ink);
}

h1, h2, h3, h4 {
  color: var(--ink);
  line-height: 1.25;
  font-weight: 700;
  letter-spacing: -0.015em;
}

/* ---------- Утилиты ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + 40px);
  margin: 0 auto;
  padding: 0 20px;
}

.section {
  padding: 88px 0;
}

.section + .section {
  padding-top: 88px;
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}

.section-head h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.25rem);
  margin-bottom: 14px;
}

.section-head p {
  font-size: 1.06rem;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  font-weight: 600;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 12px;
}

:focus-visible {
  outline: 3px solid rgba(37, 99, 235, 0.5);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  transition: background-color 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s, transform 0.2s;
  white-space: nowrap;
}

.btn-lg {
  padding: 15px 30px;
  font-size: 1.05rem;
}

.btn-block {
  display: flex;
  width: 100%;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.3);
}

.btn-secondary {
  background: #fff;
  color: var(--ink);
  border: 1.5px solid var(--line);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* ---------- Шапка ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s, box-shadow 0.25s;
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 4px 20px -8px rgba(16, 26, 46, 0.10);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  padding: 7px 4px;
}

.brand-mark svg {
  width: 30px;
  height: 30px;
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.main-nav {
  margin-left: auto;
}

.nav-list {
  display: flex;
  gap: 6px;
}

.nav-link {
  display: inline-block;
  padding: 9px 13px;
  color: var(--ink-soft);
  font-size: 0.96rem;
  font-weight: 500;
  border-radius: 8px;
  transition: color 0.2s, background-color 0.2s;
}

.nav-link:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

.header-cta {
  padding: 11px 20px;
  font-size: 0.95rem;
}

/* Бургер */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  border-radius: 10px;
}

.nav-toggle:hover {
  background: var(--accent-soft);
}

.nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.25s, opacity 0.25s;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Мобильное меню */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: rgba(10, 20, 40, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: #fff;
  padding: calc(var(--header-h) + 12px) 20px 24px;
  max-height: calc(100dvh - var(--header-h) - 16px);
  overflow-y: auto;
  transform: translateY(-16px);
  opacity: 0;
  transition: transform 0.25s, opacity 0.25s;
  box-shadow: var(--shadow-pop);
}

.mobile-menu.open .mobile-menu-panel {
  transform: translateY(0);
  opacity: 1;
}

.mobile-menu-list {
  margin-bottom: 16px;
}

.mobile-menu-list a {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 0 14px;
  color: var(--ink);
  font-size: 1.05rem;
  font-weight: 600;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s, background-color 0.2s;
}

.mobile-menu-list a:last-child {
  border-bottom: none;
}

.mobile-menu-list a:hover {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ---------- Первый экран ---------- */
.hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(900px 420px at 82% -10%, rgba(37, 99, 235, 0.10), transparent 65%),
    radial-gradient(700px 380px at 0% 100%, rgba(37, 99, 235, 0.05), transparent 60%),
    var(--bg);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(16, 26, 46, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(16, 26, 46, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 20%, #000 30%, transparent 75%);
  pointer-events: none;
}

.hero .container {
  position: relative;
}

.hero-inner {
  max-width: 820px;
}

.hero-eyebrow {
  display: inline-block;
  padding: 7px 14px;
  margin-bottom: 24px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
}

.hero-title {
  font-size: clamp(2.1rem, 5.2vw, 3.5rem);
  letter-spacing: -0.025em;
  margin-bottom: 22px;
}

.hero-lead {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  max-width: 640px;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  padding: 0;
}

.hero-points li {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--ink);
}

.hero-points .check-ic {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--accent);
}

/* ---------- Карточки услуг ---------- */
.services {
  background: var(--bg-alt);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.service-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: var(--shadow-pop);
}

.service-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: 18px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 12px;
}

.service-card h3 {
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.service-card > p {
  font-size: 0.93rem;
  line-height: 1.55;
  margin-bottom: 16px;
}

.service-list {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.service-list li {
  position: relative;
  padding-left: 20px;
  font-size: 0.87rem;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--ink-soft);
}

.service-list li:last-child {
  margin-bottom: 0;
}

.service-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.55;
}

/* ---------- Почему мы ---------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.why-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
}

.why-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 16px;
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 10px;
}

.why-card h3 {
  font-size: 1.04rem;
  margin-bottom: 8px;
}

.why-card p {
  font-size: 0.93rem;
}

/* ---------- Как мы работаем ---------- */
.process {
  background: var(--bg-alt);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: step;
}

.process-step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px 24px;
  box-shadow: var(--shadow-card);
}

.step-num {
  display: inline-block;
  margin-bottom: 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 8px;
  padding: 5px 12px;
  letter-spacing: 0.04em;
}

.process-step h3 {
  font-size: 1.06rem;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 0.93rem;
}

/* ---------- Типовые задачи ---------- */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.case-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

.case-card:hover {
  transform: translateY(-4px);
  border-color: rgba(37, 99, 235, 0.35);
  box-shadow: var(--shadow-pop);
}

.case-tag {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 6px;
  padding: 4px 10px;
}

.case-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.case-card p:last-child {
  font-size: 0.93rem;
}

/* ---------- О компании ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.25rem);
  margin-bottom: 20px;
}

.about-text p {
  margin-bottom: 16px;
}

.about-text p:last-child {
  margin-bottom: 0;
}

.about-panel {
  background: var(--dark);
  color: var(--dark-text);
  border-radius: var(--radius);
  padding: 30px 28px;
  background-image: radial-gradient(400px 200px at 90% 0%, rgba(37, 99, 235, 0.25), transparent 70%);
}

.about-panel h3 {
  color: #fff;
  font-size: 1.15rem;
  margin-bottom: 18px;
}

.about-list li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  line-height: 1.5;
}

.about-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.8;
}

.about-panel .btn {
  margin-top: 14px;
}

/* ---------- FAQ ---------- */
.faq {
  background: var(--bg-alt);
}

.faq-list {
  max-width: 820px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  cursor: pointer;
  list-style: none;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  transition: color 0.2s;
  -webkit-tap-highlight-color: transparent;
}

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

.faq-item summary:hover {
  color: var(--accent);
}

.faq-icon {
  flex-shrink: 0;
  color: var(--ink-faint);
  transition: transform 0.25s, color 0.25s;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq-answer {
  padding: 16px 22px 20px;
  font-size: 0.96rem;
  border-top: 1px solid var(--line);
}

/* ---------- Контакты ---------- */
.contacts {
  background:
    radial-gradient(800px 400px at 90% 0%, rgba(37, 99, 235, 0.18), transparent 60%),
    linear-gradient(160deg, var(--dark) 0%, var(--dark-2) 100%);
}

.contacts-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 56px;
  align-items: start;
}

.contacts-info h2 {
  color: #fff;
  font-size: clamp(1.7rem, 3.2vw, 2.25rem);
  margin-bottom: 16px;
}

.contacts-lead {
  color: var(--dark-text);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.contacts-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}

.contact-ic {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--dark-line);
  color: #8fb4ff;
  border-radius: 12px;
}

.contact-label {
  display: block;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 2px;
}

.contact-value {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  color: #fff;
  font-size: 1.15rem;
  font-weight: 600;
  transition: color 0.2s;
}

.contact-value:hover {
  color: #8fb4ff;
}

/* Форма */
.form-card {
  background: #fff;
  border-radius: 16px;
  padding: 32px 30px;
  box-shadow: var(--shadow-pop);
}

.contact-form h3 {
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.form-note {
  font-size: 0.93rem;
  margin-bottom: 22px;
}

.field {
  margin-bottom: 18px;
}

.field label {
  display: block;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 7px;
}

.req {
  color: #d64545;
}

.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field textarea {
  width: 100%;
  padding: 12px 14px;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-size: 1rem;
  line-height: 1.45;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.field textarea {
  resize: vertical;
  min-height: 96px;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #9aa5b8;
}

.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #d64545;
}

.field input[aria-invalid="true"]:focus,
.field textarea[aria-invalid="true"]:focus {
  box-shadow: 0 0 0 3px rgba(214, 69, 69, 0.14);
}

.field-error {
  display: block;
  min-height: 1em;
  margin-top: 6px;
  font-size: 0.85rem;
  color: #c23636;
  line-height: 1.3;
}

.field-error:empty {
  display: none;
}

/* Чекбокс */
.field-check .check {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.check input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
}

.check-box {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  background: #fff;
  border: 2px solid #c9d2e3;
  border-radius: 6px;
  color: #fff;
  transition: background-color 0.2s, border-color 0.2s;
}

.check input:checked + .check-box {
  background: var(--accent);
  border-color: var(--accent);
}

.check input:focus-visible + .check-box {
  outline: 3px solid rgba(37, 99, 235, 0.5);
  outline-offset: 2px;
}

.check input[aria-invalid="true"] + .check-box {
  border-color: #d64545;
}

.check-text {
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--ink-soft);
}

.form-status {
  margin-bottom: 12px;
  font-size: 0.9rem;
  color: #c23636;
  font-weight: 500;
  min-height: 0;
}

.form-status:empty {
  display: none;
  margin-bottom: 0;
}

.form-card .btn {
  margin-top: 4px;
}

.form-hint {
  margin-top: 12px;
  font-size: 0.82rem;
  color: var(--ink-faint);
  text-align: center;
  line-height: 1.45;
}

/* Успех */
.form-success {
  text-align: center;
  padding: 24px 8px;
}

.success-ic {
  display: inline-flex;
  color: #1a9e57;
  margin-bottom: 14px;
}

.form-success h3 {
  font-size: 1.3rem;
  margin-bottom: 8px;
}

.form-success p {
  font-size: 0.97rem;
  margin-bottom: 22px;
  max-width: 380px;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark-2);
  color: var(--dark-text);
  padding-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 44px;
}

.brand-light .brand-text {
  color: #fff;
}

.footer-brand p {
  margin-top: 16px;
  font-size: 0.92rem;
  max-width: 320px;
}

.footer-title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 16px;
}

.footer-nav ul,
.footer-contacts ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a,
.footer-contacts a {
  display: inline-block;
  padding: 5px 0;
  color: var(--dark-text);
  font-size: 0.95rem;
  line-height: 1.4;
  transition: color 0.2s;
}

.footer-nav a:hover,
.footer-contacts a:hover {
  color: #fff;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  align-items: center;
  justify-content: space-between;
  padding: 20px;
  border-top: 1px solid var(--dark-line);
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
}

/* ---------- Плавное появление ---------- */
.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.js .reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .service-card:hover,
  .case-card:hover,
  .btn:hover {
    transform: none;
  }
}

/* =========================================================
   Адаптивность
   ========================================================= */

/* Планшет / ноутбук */
@media (max-width: 1180px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 992px) {
  .main-nav,
  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .header-inner {
    height: 64px;
  }

  :root {
    --header-h: 64px;
  }

  .section {
    padding: 68px 0;
  }

  .hero {
    padding: 64px 0 64px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .why-grid,
  .process-grid,
  .cases-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .contacts-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* Мобильный */
@media (max-width: 640px) {
  .container {
    padding: 0 16px;
  }

  .section {
    padding: 56px 0;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .hero {
    padding: 44px 0 52px;
  }

  .hero-eyebrow {
    font-size: 0.85rem;
    margin-bottom: 18px;
  }

  .hero-title {
    margin-bottom: 18px;
  }

  .hero-actions {
    margin-bottom: 30px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-points {
    flex-direction: column;
    gap: 10px;
  }

  .services-grid,
  .why-grid,
  .process-grid,
  .cases-grid {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .service-card,
  .why-card,
  .process-step,
  .case-card {
    padding: 22px 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  .form-card {
    padding: 26px 20px;
  }

  .contact-value {
    font-size: 1.05rem;
  }
}

/* Планшет: увеличенные зоны нажатия в подвале */
@media (max-width: 768px) {
  .footer-nav a,
  .footer-contacts a {
    padding: 11px 0;
    line-height: 1.5;
  }
}

/* Очень узкие экраны (320px) */
@media (max-width: 360px) {
  .hero-title {
    font-size: 1.85rem;
  }

  .btn-lg {
    padding: 13px 18px;
    font-size: 1rem;
  }
}