/* =========================================================
   Avilon.IT — общие стили сайта
   Используются на всех страницах (index.html, services.html, contacts.html и т.д.)
   ========================================================= */

/* ---------- Design tokens ---------- */
:root {
  /* Цвета бренда */
  --color-accent: #C4622D;       /* терракотовый — основной акцент */
  --color-accent-hover: #A94F22;
  --color-secondary: #2E7D74;    /* морской бирюзовый — вторичный акцент */
  --color-secondary-hover: #23625A;

  /* Пастельные подложки (иконки, теги, декоративные блоки) */
  --color-peach-bg: #F8E2D3;
  --color-peach-section: #FBDECD;
  --color-mint-bg: #DCEEEB;
  --terracotta-tint-line: #EEC3B2;   /* ~ oklch(0.85 0.055 42), тонкие акцентные линии/рамки */

  /* Тёмная секция (шапка / hero / форма заявки / футер) */
  --color-dark-bg: #14151E;
  --color-dark-bg-raised: #1C1E29;
  --color-dark-border: rgba(244, 241, 234, 0.12);
  --color-dark-text: #F4F1EA;
  --color-dark-text-muted: rgba(244, 241, 234, 0.62);

  /* Светлые секции */
  --color-bg: #FAF7F1;           /* тёплый белый, не чистый #fff */
  --color-bg-raised: #F2ECE2;
  --color-bg-card: #FFFDF9;
  --color-border: #E7DFD1;
  --color-text: #1E1C18;
  --color-text-muted: #6B6459;

  /* Типографика */
  --font-main: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', 'Courier New', monospace;

  /* Сетка / контейнер */
  --container-width: 1200px;
  --container-pad: 24px;

  /* Скругления и тени */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 1px 2px rgba(30, 25, 15, 0.04), 0 20px 44px rgba(30, 25, 15, 0.07);
  --shadow-float: 0 30px 60px rgba(10, 8, 4, 0.35);

  --transition: 0.2s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;   /* iOS не раздувает шрифт при повороте экрана */
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a { color: inherit; text-decoration: none; }

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

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

h1, h2, h3, h4, p { margin: 0; }

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ---------- Типографика заголовков ---------- */
.eyebrow {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.18;
  margin-top: 14px;
  color: var(--color-text);
}

.section-head p {
  margin-top: 16px;
  font-size: 17px;
  color: var(--color-text-muted);
}

.section-head.split {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  max-width: none;
  flex-wrap: wrap;
}

.section-head.split .head-text { max-width: 620px; }
.section-head.split .head-aside { max-width: 380px; color: var(--color-text-muted); font-size: 15.5px; padding-bottom: 4px; }

section { padding-block: 96px; }
section.tight { padding-block: 72px; }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 26px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition), color var(--transition), transform var(--transition);
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-accent);
  color: #FFF9F3;
}
.btn-primary:hover { background: var(--color-accent-hover); }

.btn-outline {
  background: transparent;
  border-color: var(--color-dark-border);
  color: var(--color-dark-text);
}
.btn-outline:hover {
  border-color: var(--color-dark-text);
  background: rgba(244, 241, 234, 0.06);
}

.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-dark-bg);
  border-bottom: 1px solid var(--color-dark-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 76px;
}

.logo {
  display: flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 18px;
  color: var(--color-dark-text);
  letter-spacing: 0.01em;
}

.logo span { color: var(--color-accent); }

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-dark-text-muted);
  transition: color var(--transition);
}

.nav-menu a:hover { color: var(--color-dark-text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-social {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-dark-bg-raised);
  color: var(--color-dark-text-muted);
  transition: color var(--transition);
  flex-shrink: 0;
}

.header-social:hover { color: var(--color-dark-text); }
.header-social svg { width: 17px; height: 17px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-sm);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin-inline: auto;
  background: var(--color-dark-text);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
  padding-block: 88px 96px;
  overflow: hidden;
}

.hero .container {
  display: flex;
  align-items: center;
  gap: 48px;
}

.hero-inner { max-width: 600px; flex-shrink: 0; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  border: 1px solid var(--color-dark-border);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-dark-text-muted);
}

.hero h1 {
  margin-top: 24px;
  font-size: clamp(32px, 3.6vw, 46px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.015em;
}

.hero h1 .accent-text { color: var(--color-accent); }

.hero .lead {
  margin-top: 22px;
  max-width: 520px;
  font-size: 17px;
  color: var(--color-dark-text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid var(--color-dark-border);
  max-width: 560px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 600;
  color: var(--color-dark-text);
}

.stat-label {
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-dark-text-muted);
}

/* ---------- Hero visual (декоративная композиция) ---------- */
.hero-visual {
  position: relative;
  flex: 1;
  min-width: 380px;
  height: 480px;
  display: block;
}

.hero-blob {
  position: absolute;
  top: -30px;
  right: -40px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46, 125, 116, 0.32), rgba(46, 125, 116, 0) 70%);
}

.hero-code-card {
  position: absolute;
  top: 20px;
  right: 10px;
  width: 300px;
  background: var(--color-dark-bg-raised);
  border: 1px solid var(--color-dark-border);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  box-shadow: var(--shadow-float);
  transform: rotate(2deg);
}

.code-dots {
  display: flex;
  gap: 6px;
  margin-bottom: 16px;
}

.code-dots span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.code-dots span:nth-child(1) { background: #E5675C; }
.code-dots span:nth-child(2) { background: #E5B85C; }
.code-dots span:nth-child(3) { background: #5CBF7A; }

.code-block {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.65;
  color: #C7CCD6;
  margin: 0;
  white-space: pre;
}

.code-block .tok-kw { color: #E39C7B; }
.code-block .tok-fn { color: #7FBEB4; }

.hero-pool-card {
  position: absolute;
  left: 0;
  bottom: 10px;
  width: 300px;
  background: var(--color-bg-card);
  color: var(--color-text);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  box-shadow: var(--shadow-float);
  transform: rotate(-2deg);
}

.pool-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.pool-avatars {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}

.avatar.peach { background: var(--color-peach-bg); color: var(--color-accent); }
.avatar.mint { background: var(--color-mint-bg); color: var(--color-secondary); }
.avatar.more { background: var(--color-bg-raised); color: var(--color-text-muted); }

.pool-skills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 10px;
}

.skill-pill {
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--color-bg-raised);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text);
}

.pool-ready {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  font-size: 13px;
  color: var(--color-text-muted);
}

.pool-ready svg { width: 16px; height: 16px; color: var(--color-accent); flex-shrink: 0; }

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 30px;
  box-shadow: var(--shadow-card);
}

.service-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.service-icon svg { width: 22px; height: 22px; }

.service-card:nth-child(odd) .service-icon { background: var(--color-peach-bg); color: var(--color-accent); }
.service-card:nth-child(even) .service-icon { background: var(--color-mint-bg); color: var(--color-secondary); }

.service-card h3 {
  margin-top: 22px;
  font-size: 18.5px;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.service-card p {
  margin-top: 10px;
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ---------- Process ---------- */
.process { background: var(--color-bg-raised); }

.process-steps {
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.process-steps::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 32px;
  right: 32px;
  height: 1px;
  background: var(--terracotta-tint-line);
}

.process-step {
  position: relative;
  flex: 1;
  padding-right: 12px;
}

.step-circle {
  position: relative;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-bg-raised);
  border: 2px solid rgba(140, 133, 121, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 22px;
}

.process-step h3 {
  font-size: 16.5px;
  font-weight: 700;
}

.process-step p {
  margin-top: 8px;
  font-size: 14.5px;
  color: var(--color-text-muted);
}

/* ---------- Team (Специалисты) ---------- */
.stat-tiles {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.stat-tile {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 22px 20px;
}

.stat-tile .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: 28px;
  font-weight: 600;
  color: #C4622D;
}

.stat-tile .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.role-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 32px;
}

.role-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 22px;
}

.role-card h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text);
}

.role-card p {
  margin-top: 8px;
  font-size: 13px;
  color: var(--color-text-muted);
}

.navy-band {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  background: var(--color-dark-bg);
  border-radius: 18px;
}

.navy-band.cta-band { padding: 40px 44px; margin-top: 32px; }
.navy-band h3 { font-size: 19px; font-weight: 800; color: var(--color-dark-text); }
.navy-band p { margin-top: 8px; font-size: 14px; color: var(--color-dark-text-muted); }
.navy-band .btn { background: #C4622D; color: #FFF9F3; }
.navy-band .btn:hover { background: var(--color-accent-hover); }

/* ---------- Development (Разработка) ---------- */
#development { background: var(--color-bg-raised); }

.sub-eyebrow { font-size: 12px; margin-bottom: 20px; }

.dev-products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.dev-block { margin-top: 56px; }

.case-top.tint {
  position: relative;
  background: var(--color-mint-bg);
  font-size: 30px;
  font-weight: 500;
  color: rgba(46, 125, 116, 0.35);
}

.case-top.case-img { background: #050814; }

.case-top.case-img img {
  width: 100%;
  height: 100%;
  padding: 16px 28px;
  box-sizing: border-box;
  object-fit: contain;
  object-position: center center;
}

.case-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0;
  color: var(--color-text);
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.card.full-cycle { padding: 28px 32px; }

.pipe-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px 28px;
  margin-top: 22px;
}

.pipe-step { display: flex; gap: 12px; align-items: flex-start; }

.pipe-num {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-raised);
  color: #C4622D;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.pipe-text { font-size: 13.5px; color: var(--color-text); }

.navy-band.accent-band { padding: 36px 44px; margin-top: 24px; flex-wrap: nowrap; justify-content: flex-start; }
.navy-band.accent-band p { margin: 0; font-size: 14.5px; }
.navy-band.accent-band p strong { color: var(--color-dark-text); font-weight: 700; }

.micro-icon {
  flex: 0 0 46px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: rgba(196, 98, 45, 0.18);
  display: flex;
  align-items: center;
  justify-content: center;
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.case-top {
  height: 150px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 52px;
  letter-spacing: 0.02em;
}

.case-top.peach { background: var(--color-peach-bg); color: rgba(196, 98, 45, 0.55); }
.case-top.mint { background: var(--color-mint-bg); color: rgba(46, 125, 116, 0.55); }

.case-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 28px 30px 32px;
}

.case-meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.case-body h3 {
  margin-top: 16px;
  font-size: 20px;
  font-weight: 700;
}

.case-body p {
  margin-top: 10px;
  font-size: 15px;
  color: var(--color-text-muted);
}

.case-link {
  display: inline-block;
  margin-top: auto;
  padding-top: 16px;
  font-size: 14px;
  font-weight: 700;
  color: #C4622D;
}

/* ---------- FAQ ---------- */
#faq { background: var(--color-bg); }

.faq-list {
  max-width: 800px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.faq-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 26px 32px;
  box-shadow: var(--shadow-card);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}

.faq-icon {
  flex-shrink: 0;
  width: 18px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.faq-item p {
  margin-top: 12px;
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ---------- Contact form ---------- */
.contact-form-section {
  background: var(--color-dark-bg);
  color: var(--color-dark-text);
}

.form-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 64px;
  align-items: start;
}

.form-info .eyebrow { color: var(--color-accent); }

.form-info h2 {
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  margin-top: 14px;
  color: var(--color-dark-text);
}

.form-info p {
  margin-top: 16px;
  color: var(--color-dark-text-muted);
  font-size: 16px;
  max-width: 420px;
}

.form-info-list {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-info-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--color-dark-text);
}

.form-info-list svg {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.request-form {
  background: var(--color-bg-card);
  color: var(--color-text);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-float);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-field {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-field label {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
}

.form-field input,
.form-field textarea {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-field input::placeholder,
.form-field textarea::placeholder { color: #A79E8E; }

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(196, 98, 45, 0.12);
}

.form-field textarea {
  resize: vertical;
  min-height: 110px;
}

.form-note {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--color-text-muted);
  text-align: center;
}

.form-success {
  display: none;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  background: rgba(46, 125, 116, 0.1);
  color: var(--color-secondary);
  font-size: 14.5px;
  font-weight: 600;
  margin-bottom: 20px;
}

.form-success.is-visible { display: flex; }

.form-success svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 1px; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-dark-bg);
  color: var(--color-dark-text-muted);
  padding-block: 72px 32px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 0.9fr 1.1fr 1fr;
  gap: 32px;
}

.footer-brand .logo { margin-bottom: 16px; }

.footer-brand p {
  font-size: 14.5px;
  max-width: 280px;
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.footer-social a {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-dark-bg-raised);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  transition: color var(--transition);
}

.footer-social a:hover { color: var(--color-dark-text); }

.footer-social svg { width: 16px; height: 16px; }

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-dark-text);
  margin-bottom: 18px;
}

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

.footer-col a {
  font-size: 14.5px;
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--color-dark-text); }

.footer-contacts li {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contacts svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.footer-cta {
  background: var(--color-dark-bg-raised);
  border-radius: var(--radius-md);
  padding: 26px;
  box-shadow: var(--shadow-card);
}

.footer-cta h4 {
  font-family: var(--font-main);
  font-size: 17px;
  font-weight: 800;
  color: var(--color-dark-text);
  text-transform: none;
  letter-spacing: normal;
  margin-bottom: 10px;
}

.footer-cta p {
  font-size: 14px;
  margin-bottom: 18px;
}

.footer-cta .btn-primary { width: 100%; }

.footer-cta-link {
  display: block;
  text-align: center;
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--color-dark-text-muted);
}

.footer-cta-link:hover { color: var(--color-dark-text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 56px;
  padding-top: 28px;
  border-top: 1px solid var(--color-dark-border);
  font-size: 13px;
}

.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a:hover { color: var(--color-dark-text); }

/* ---------- Case detail page (cases/*.html) ---------- */
.case-back-link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-dark-text-muted);
  transition: color var(--transition);
}

.case-back-link:hover { color: var(--color-dark-text); }

.case-detail { padding-block: 64px 96px; }

.case-hero { max-width: 760px; }

.case-hero h1 {
  margin-top: 14px;
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.case-hero-lead {
  margin-top: 18px;
  font-size: 17px;
  color: var(--color-text-muted);
  max-width: 640px;
}

.case-overview { margin-top: 64px; }

.case-overview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.case-overview-block { padding: 26px 28px; }

.case-overview-block h2 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.case-overview-block p {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.case-gallery { margin-top: 64px; }

.case-gallery .eyebrow { margin-bottom: 20px; }

.case-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
}

.case-shot {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  padding: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
  background: var(--color-bg-raised);
  overflow: hidden;
  cursor: zoom-in;
  transition: transform var(--transition);
}

.case-shot:hover { transform: translateY(-2px); }

.case-shot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- Лайтбокс (cases/*.html) ---------- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: rgba(20, 21, 30, 0.92);
}

.lightbox.is-open { display: flex; }

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  width: auto;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-float);
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--color-dark-border);
  background: var(--color-dark-bg-raised);
  color: var(--color-dark-text);
  transition: color var(--transition);
}

.lightbox-close:hover { color: var(--color-accent); }
.lightbox-close svg { width: 18px; height: 18px; }

/* ---------- Утилиты ---------- */
.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;
}

/* =========================================================
   Адаптив
   ========================================================= */

@media (max-width: 1180px) {
  .hero-visual { display: none; }
  .hero .container { flex-direction: column; }
  .hero-inner { max-width: none; width: 100%; flex-shrink: 1; min-width: 0; }
}

@media (max-width: 1023px) {
  .services-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process-steps { flex-wrap: wrap; row-gap: 32px; }
  .process-steps::before { display: none; }
  .process-step { flex: 0 0 calc(33.333% - 14px); }
  .role-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-top { grid-template-columns: 1.2fr 1fr 1fr; }
  .footer-top .footer-cta { grid-column: span 3; }
  .form-wrapper { grid-template-columns: 1fr; gap: 40px; }
}

/* Планшеты вертикально и телефоны: бургер-меню, одна колонка у крупных блоков */
@media (max-width: 860px) {
  html { scroll-padding-top: 72px; }

  /* --- Шапка и меню --- */
  .site-header .container { height: 64px; gap: 16px; }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    background: var(--color-dark-bg);
    border-bottom: 1px solid var(--color-dark-border);
    padding: 12px var(--container-pad) 20px;
    /* в горизонтальной ориентации меню выше экрана — даём ему свой скролл */
    max-height: calc(100vh - 64px);
    max-height: calc(100dvh - 64px);
    overflow-y: auto;
  }
  .nav-menu.is-open { display: flex; }
  .nav-menu a {
    width: 100%;
    padding: 12px 0;
    border-bottom: 1px solid var(--color-dark-border);
  }
  .nav-menu a:last-child { border-bottom: none; }

  .nav-toggle { display: flex; width: 44px; height: 44px; flex-shrink: 0; }
  .header-actions { gap: 10px; }
  .header-actions .btn-primary { padding: 9px 12px; font-size: 13px; }
  .header-social { display: none; }
  .case-back-link { margin-left: auto; padding-block: 10px; }

  /* --- Общие отступы секций --- */
  section { padding-block: 64px; }
  section.tight { padding-block: 48px; }
  .section-head { margin-bottom: 40px; }

  /* --- Hero --- */
  .hero { padding-block: 48px 48px; }
  .hero-stats { gap: 24px; margin-top: 44px; padding-top: 32px; }

  /* --- Процесс: вертикальная лента (кружок слева, текст справа) --- */
  .process-steps { flex-direction: column; flex-wrap: nowrap; gap: 28px; }
  .process-step {
    flex: none;
    display: grid;
    grid-template-columns: 48px minmax(0, 1fr);
    column-gap: 16px;
    align-content: start;
    padding-right: 0;
  }
  .process-step:not(:last-child)::before {
    content: "";
    position: absolute;
    top: 48px;
    bottom: -28px;
    left: 24px;
    width: 1px;
    background: var(--terracotta-tint-line);
  }
  .step-circle {
    grid-row: 1 / span 2;
    width: 48px;
    height: 48px;
    font-size: 13.5px;
    margin-bottom: 0;
  }
  .process-step h3 { margin-top: 2px; }
  .process-step p { margin-top: 6px; }

  /* --- Специалисты / Разработка --- */
  .stat-tiles { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pipe-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .navy-band.cta-band { padding: 32px 28px; }
  .navy-band.accent-band { padding: 28px; }
  .case-link { padding-bottom: 8px; margin-bottom: -8px; }

  /* --- Страницы кейсов --- */
  .case-detail { padding-block: 48px 64px; }
  .case-overview { margin-top: 48px; }
  .case-gallery { margin-top: 48px; }

  /* --- Футер: ссылки с областью нажатия не меньше 40px --- */
  .footer-top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-top .footer-cta { grid-column: span 2; }
  .footer-social a { width: 44px; height: 44px; }
  .footer-col h4 { margin-bottom: 8px; }
  .footer-col ul { gap: 0; }
  .footer-col a { display: inline-block; padding-block: 10px; }
  .footer-cta-link { margin-top: 4px; padding-block: 12px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 6px; margin-top: 40px; padding-top: 20px; }
  .footer-bottom-links { flex-wrap: wrap; gap: 0 24px; }
  .footer-bottom-links a { display: inline-block; padding-block: 10px; }
}

/* Узкие планшеты и телефоны: сетки карточек складываются в одну колонку */
@media (max-width: 640px) {
  .services-grid { grid-template-columns: 1fr; }
  .role-grid { grid-template-columns: 1fr; }
  .pipe-grid { grid-template-columns: 1fr; }
  .case-overview-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; gap: 0; }
  .request-form { padding: 26px; }
}

/* Телефоны: плотнее отступы, кнопки на всю ширину */
@media (max-width: 520px) {
  :root { --container-pad: 18px; }

  .site-header .container { gap: 12px; }
  /* на страницах кейсов в шапке остаются логотип и «← Все кейсы» */
  .case-back-link + .header-actions { display: none; }

  section { padding-block: 56px; }
  section.tight { padding-block: 44px; }
  .section-head { margin-bottom: 32px; }
  .section-head.split { flex-direction: column; align-items: flex-start; }
  .section-head p,
  .hero .lead,
  .case-hero-lead { font-size: 16px; }

  .hero { padding-block: 40px 44px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .hero-actions .btn { width: 100%; }
  /* цифры в строку: значение слева, подпись справа */
  .hero-stats { grid-template-columns: 1fr; gap: 14px; margin-top: 36px; padding-top: 28px; }
  .hero-stats .stat {
    display: grid;
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: 12px;
    align-items: baseline;
  }
  .hero-stats .stat-label { margin-top: 0; }

  .services-grid { gap: 16px; }
  .service-card { padding: 24px 22px; }
  .service-card h3 { margin-top: 16px; }

  .stat-tiles { gap: 12px; }
  .stat-tile { padding: 18px 16px; }
  .stat-tile .stat-num { font-size: 24px; }
  .role-grid { gap: 12px; margin-top: 24px; }
  .role-card { padding: 20px; }
  .role-card p { font-size: 14px; }
  .navy-band.cta-band { padding: 26px 22px; margin-top: 24px; }
  .navy-band.accent-band { padding: 22px; gap: 16px; }
  .navy-band .btn { width: 100%; }

  .dev-block { margin-top: 40px; }
  .case-body { padding: 22px 22px 26px; }
  .card.full-cycle { padding: 24px 22px; }


  .faq-list { gap: 12px; }
  .faq-item { padding: 20px 22px; }

  .form-wrapper { gap: 32px; }
  .form-info-list { margin-top: 24px; gap: 12px; }
  .request-form { padding: 22px 18px; }
  .form-field { margin-bottom: 4px; }

  .case-overview-grid { gap: 14px; }
  .case-overview-block { padding: 22px; }
  .case-gallery-grid { gap: 14px; }

  .site-footer { padding-block: 56px 24px; }
  .footer-top { grid-template-columns: 1fr; }
  .footer-top .footer-cta { grid-column: span 1; }

  .lightbox { padding: 12px; }
  .lightbox-img { max-width: 100%; }
  .lightbox-close { top: 12px; right: 12px; }
}

/* Самые узкие телефоны (до 360px): кнопка в шапке уже не помещается */
@media (max-width: 359px) {
  .header-actions .btn-primary { display: none; }
}