/* Avitologia — вариант A: тёмный, акцент Avito-green */
:root {
  --bg: #0c0f0e;
  --bg-card: #141a17;
  --border: #243028;
  --text: #e8eee9;
  --muted: #8fa396;
  --accent: #00a85c;
  --accent-dim: #008f4f;
  --warn: #ffb020;
  --radius: 14px;
  /* Mulish — текст; Unbounded — заголовки (кириллица в обоих) */
  --font: "Mulish", system-ui, "Segoe UI", sans-serif;
  --font-display: "Unbounded", var(--font);
}

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

html {
  scroll-behavior: smooth;
  accent-color: var(--accent);
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--text);
  background-color: var(--bg);
  background-image: none;
  overflow-x: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

*::selection {
  background: var(--accent);
  color: #fff;
}

*::-moz-selection {
  background: var(--accent);
  color: #fff;
}

/* Кастомное меню по ПКМ (js/main.js) */
.context-menu {
  position: fixed;
  z-index: 10050;
  min-width: 12rem;
  padding: 0.4rem;
  margin: 0;
  list-style: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.context-menu[hidden] {
  display: none !important;
}

.context-menu__item {
  display: block;
  width: 100%;
  box-sizing: border-box;
  margin: 0;
  padding: 0.55rem 0.9rem;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.context-menu__item:hover:not(:disabled),
.context-menu__item:focus-visible {
  background: rgba(0, 168, 92, 0.2);
  color: var(--accent);
  outline: none;
}

.context-menu__item:disabled {
  opacity: 0.4;
  cursor: default;
}

/* Слой с зелёным «светом» и матовым стеклом поверх WebGL-шейдера */
.bg-veil {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(0, 168, 92, 0.22), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 10%, rgba(0, 143, 79, 0.12), transparent),
    linear-gradient(180deg, rgba(12, 15, 14, 0.32) 0%, rgba(12, 15, 14, 0.5) 100%);
  backdrop-filter: blur(8px) saturate(1.06);
  -webkit-backdrop-filter: blur(8px) saturate(1.06);
}

html.shader-bg--static .bg-veil {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  background:
    radial-gradient(ellipse 120% 80% at 50% -30%, rgba(0, 168, 92, 0.18), transparent 55%),
    radial-gradient(ellipse 60% 40% at 100% 10%, rgba(0, 143, 79, 0.08), transparent),
    var(--bg);
}

.shader-bg {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  pointer-events: none;
}

html.shader-bg--static .shader-bg {
  display: none;
}

body > main,
.site-footer {
  position: relative;
  z-index: 2;
}

a,
button,
.nav-toggle,
.btn {
  -webkit-tap-highlight-color: rgba(0, 168, 92, 0.18);
}

button,
.nav-toggle {
  touch-action: manipulation;
}

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

a:hover {
  text-decoration: underline;
}

.container {
  box-sizing: border-box;
  width: 100%;
  max-width: 70rem;
  margin-inline: auto;
  padding-left: max(1.1rem, env(safe-area-inset-left));
  padding-right: max(1.1rem, env(safe-area-inset-right));
}

@media (min-width: 768px) {
  .container {
    padding-left: max(2rem, env(safe-area-inset-left));
    padding-right: max(2rem, env(safe-area-inset-right));
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding-top: env(safe-area-inset-top);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  background: rgba(12, 15, 14, 0.85);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text);
  text-decoration: none;
}

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

.nav-desktop {
  display: none;
  gap: 1.75rem;
  align-items: center;
}

.nav-desktop a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, background 0.15s;
  min-height: 2.75rem;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  color: #fff;
  box-shadow: 0 4px 24px rgba(0, 168, 92, 0.35);
}

.btn-primary:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 2.75rem;
  min-height: 2.75rem;
  background: none;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  font: inherit;
}

.nav-mobile {
  display: none;
  flex-direction: column;
  padding: 1rem 0 1.5rem;
  border-top: 1px solid var(--border);
  gap: 0.75rem;
}

.nav-mobile.is-open {
  display: flex;
}

.nav-mobile a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.65rem 0;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
}

.nav-mobile .btn {
  min-height: 2.75rem;
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }

  .nav-toggle {
    display: none;
  }

  .nav-mobile {
    display: none !important;
  }
}

.hero {
  padding: 4rem 0 5rem;
}

.hero-grid {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin: 0 0 1.25rem;
}

.lead {
  color: var(--muted);
  font-size: 1.15rem;
  max-width: 36ch;
  margin: 0 0 1.75rem;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 2rem;
  padding: 0.35rem 0;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.07) 0%,
    rgba(14, 22, 18, 0.42) 45%,
    rgba(10, 16, 13, 0.48) 100%
  );
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: calc(var(--radius) + 8px);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px) saturate(1.15);
  -webkit-backdrop-filter: blur(18px) saturate(1.15);
  overflow: hidden;
}

.stat {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0.85rem 1.15rem;
  text-align: left;
}

.hero-stats .stat:not(:last-child) {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.stat strong {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  font-weight: 700;
  color: var(--accent);
  text-align: right;
  line-height: 1.15;
}

.stat span {
  flex: 1;
  min-width: 0;
  font-size: 0.92rem;
  color: var(--muted);
  text-align: left;
  line-height: 1.35;
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.75rem;
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(145deg, rgba(0, 168, 92, 0.12), transparent 50%);
  pointer-events: none;
}

.hero-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 1rem;
  position: relative;
}

.checklist {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.checklist li {
  padding: 0.5rem 0 0.5rem 1.75rem;
  position: relative;
  color: var(--muted);
  font-size: 0.95rem;
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.section {
  padding: 4rem 0;
}

.section-alt {
  background: var(--bg-card);
  border-block: 1px solid var(--border);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.65rem, 3vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
}

.section-desc {
  color: var(--muted);
  max-width: 56ch;
  margin: 0 0 2.5rem;
}

.grid-3 {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s;
}

.card:hover {
  border-color: rgba(0, 168, 92, 0.45);
}

.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(0, 168, 92, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.card-icon img {
  display: block;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.6rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.steps {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(4, 1fr);
  }
}

.step {
  text-align: center;
  padding: 1rem;
}

.step-num {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.step p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.cases {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 768px) {
  .cases {
    grid-template-columns: repeat(3, 1fr);
  }
}

.case {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.case-tag {
  font-size: 0.75rem;
  color: var(--warn);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.case h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  margin: 0.35rem 0 0.75rem;
}

.case-desc {
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0;
  line-height: 1.6;
}

.case-metrics {
  display: flex;
  gap: 1.25rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.case-metrics div strong {
  display: block;
  color: var(--accent);
  font-size: 1.25rem;
}

.case-metrics div span {
  font-size: 0.75rem;
  color: var(--muted);
}

.faq-list {
  max-width: 40rem;
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  padding: 1.15rem 0;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-q::after {
  content: "+";
  color: var(--accent);
  font-size: 1.35rem;
  line-height: 1;
  flex-shrink: 0;
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.is-open .faq-q::after {
  transform: rotate(45deg);
}

.faq-panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.45s cubic-bezier(0.22, 1, 0.36, 1);
}

.faq-item.is-open .faq-panel {
  grid-template-rows: 1fr;
}

.faq-panel-inner {
  min-height: 0;
  overflow: hidden;
}

.faq-a {
  padding: 0 0 1.2rem;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

.faq-a p {
  margin: 0 0 0.65rem;
}

.faq-a p:last-child {
  margin-bottom: 0;
}

.cta-block {
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 6px);
  padding: 2.5rem 2rem;
  text-align: center;
  background: linear-gradient(155deg, #17261e 0%, #141a17 42%, #101713 100%);
  box-shadow: inset 0 1px 0 rgba(0, 168, 92, 0.12);
}

.cta-block h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  margin: 0 0 0.75rem;
}

.cta-block p {
  color: var(--muted);
  margin: 0 0 1.5rem;
  max-width: 42ch;
  margin-inline: auto;
}

.contact-form {
  display: grid;
  gap: 1rem;
  max-width: 420px;
  margin-inline: auto;
  text-align: left;
}

.contact-form__fieldset {
  border: 0;
  margin: 0;
  padding: 0;
  min-width: 0;
  display: grid;
  gap: 1rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.contact-form label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

.contact-form__choice-label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.contact-seg {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.contact-seg__item {
  position: relative;
  display: inline-flex;
  cursor: pointer;
  margin: 0;
}

.contact-seg__input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.contact-seg__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  font-family: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.2;
  transition:
    background 0.15s,
    color 0.15s,
    border-color 0.15s;
}

.contact-seg__input:checked + .contact-seg__btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  border-color: transparent;
  color: #fff;
}

.contact-seg__input:focus-visible + .contact-seg__btn {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.contact-form input:not(.contact-seg__input),
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

.contact-form input:not(.contact-seg__input):focus-visible,
.contact-form textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.contact-form textarea {
  min-height: 100px;
  resize: none;
}

.contact-form small {
  font-size: 0.75rem;
  color: var(--muted);
}

.contact-form button[type="submit"] {
  width: 100%;
}

.nav-mobile .btn-primary {
  width: 100%;
  justify-content: center;
}

.site-footer {
  padding: 2.5rem 0;
  padding-bottom: max(2.5rem, env(safe-area-inset-bottom));
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.variant-switch {
  font-size: 0.85rem;
}

.variant-switch a {
  color: var(--muted);
}

/* ——— Мобильные устройства (логика как на gr8brite.ru: отступы, safe-area, тач) ——— */
@media (max-width: 767px) {
  body {
    font-size: 1rem;
  }

  .hero {
    padding: 2.75rem 0 3.25rem;
  }

  .hero-stats {
    margin-top: 1.5rem;
  }

  .stat {
    padding: 0.8rem 1rem;
    gap: 0.75rem;
  }

  .stat strong {
    font-size: clamp(1.15rem, 4vw, 1.35rem);
  }

  .stat span {
    font-size: 0.88rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-cta .btn {
    width: 100%;
    justify-content: center;
  }

  .lead {
    max-width: none;
  }

  .section {
    padding: 2.75rem 0;
  }

  .section-title {
    font-size: clamp(1.4rem, 5.5vw, 1.85rem);
  }

  .section-desc {
    margin-bottom: 1.75rem;
  }

  .hero-card {
    padding: 1.35rem;
  }

  .grid-3 {
    gap: 1rem;
  }

  .card {
    padding: 1.25rem;
  }

  .step {
    padding: 0.75rem 0.5rem;
  }

  .case-metrics {
    flex-wrap: wrap;
    gap: 0.75rem 1.25rem;
  }

  .faq-q {
    min-height: 2.75rem;
    padding: 1rem 0;
  }

  .cta-block {
    padding: 1.75rem 1.1rem;
  }

  .cta-block h2 {
    font-size: clamp(1.35rem, 4.5vw, 1.5rem);
  }

  .contact-form input:not(.contact-seg__input),
  .contact-form textarea {
    font-size: 16px;
    min-height: 2.75rem;
  }

  .contact-seg__btn {
    font-size: 16px;
    min-height: 2.75rem;
    padding-left: 1.1rem;
    padding-right: 1.1rem;
  }

  .contact-form textarea {
    min-height: 6.5rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

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

  .btn:active {
    transform: none;
  }

  .faq-panel {
    transition: none;
  }

  .faq-q::after {
    transition: none;
  }
}