/* ============================================================
   OG GROUP — лендинг
   Палитра: графит + лаймовый акцент, современный минимализм
   ============================================================ */

/* ---------- Tokens ---------- */
:root{
  --ink: #0b0c0f;
  --ink-2: #16181d;
  --ink-soft: #565a63;
  --paper: #ffffff;
  --paper-alt: #f5f5f7;
  --line: #e5e5ea;
  --accent: #c6ff3d;
  --accent-dark: #b0ef1f;
  --accent-ink: #0b0c0f;
  --whatsapp: #25d366;
  --whatsapp-dark: #1fbd5a;
  --danger: #d64545;
  --success: #17954a;
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1140px;
  --header-h: 64px;
  --shadow-sm: 0 2px 8px rgba(11,12,15,.05);
  --shadow: 0 16px 40px rgba(11,12,15,.10);
}

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

html{
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
}

body{
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body.nav-open{ overflow: hidden; }

img, svg{ display: block; max-width: 100%; }
a{ color: inherit; text-decoration: none; }
h1, h2, h3{ margin: 0; line-height: 1.14; font-weight: 700; letter-spacing: -0.025em; }
p{ margin: 0; }
ul{ margin: 0; padding: 0; list-style: none; }
button{ font: inherit; }

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

.container{
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link{
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 12px 18px;
  font-weight: 600;
  z-index: 1000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus{ left: 0; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: .95rem;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: background-color .15s ease, border-color .15s ease, transform .12s ease, box-shadow .15s ease;
}
.btn:active{ transform: scale(.975); }
.btn-lg{ padding: 16px 28px; font-size: 1rem; }

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

.btn-ghost{ background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover{ border-color: var(--ink); }

.btn-whatsapp{ background: var(--whatsapp); color: #fff; }
.btn-whatsapp:hover{ background: var(--whatsapp-dark); }

.btn .icon{ width: 20px; height: 20px; fill: currentColor; flex-shrink: 0; }
.btn-submit{ width: 100%; padding: 16px 24px; font-size: 1rem; }
.btn[disabled]{ opacity: .6; pointer-events: none; }

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.88);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck{ border-bottom-color: var(--line); box-shadow: var(--shadow-sm); }

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  gap: 16px;
}

.logo{
  display: flex;
  align-items: center;
  gap: 7px;
  font-weight: 800;
  letter-spacing: -0.03em;
  font-size: 1.05rem;
  flex-shrink: 0;
}
.logo-mark{
  background: var(--ink);
  color: var(--accent);
  padding: 4px 8px;
  border-radius: 7px;
  font-size: .9rem;
  line-height: 1;
}

.nav{
  display: none;
  align-items: center;
  gap: 26px;
  font-weight: 500;
  font-size: .95rem;
}
.nav a{
  color: var(--ink-soft);
  position: relative;
  padding: 4px 0;
  transition: color .15s ease;
}
.nav a::after{
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.nav a:hover{ color: var(--ink); }
.nav a.is-active{ color: var(--ink); }
.nav a.is-active::after{ transform: scaleX(1); }

.header-actions{ display: flex; align-items: center; gap: 10px; }
.header-phone,
.header-cta{ display: none; padding: 10px 18px; font-size: .9rem; }

.burger{
  width: 42px;
  height: 42px;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--paper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 0;
  cursor: pointer;
}
.burger span{
  width: 18px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform .2s ease, opacity .15s ease;
}
.burger[aria-expanded="true"] span:nth-child(1){ transform: translateY(6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3){ transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 899px){
  .nav{
    display: flex;
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: var(--paper);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 0;
    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    visibility: hidden;
    transition: opacity .2s ease, transform .2s ease, visibility .2s;
    border-top: 1px solid var(--line);
    overflow-y: auto;
  }
  .nav.open{
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
    visibility: visible;
  }
  .nav a{
    padding: 16px 4px;
    border-bottom: 1px solid var(--line);
    font-size: 1.05rem;
    color: var(--ink);
  }
  .nav a::after{ display: none; }
}

@media (min-width: 900px){
  .header-phone{ display: inline-flex; }
  .burger{ display: none; }
}
@media (min-width: 1060px){
  .header-cta{ display: inline-flex; }
}

/* ---------- Hero ---------- */
.hero{
  background: var(--ink);
  color: #fff;
  padding: 60px 0 64px;
  position: relative;
  overflow: hidden;
}
.hero::before{
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, rgba(198,255,61,.22), transparent 68%);
  top: -280px;
  right: -180px;
  pointer-events: none;
}
.hero::after{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 30% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 0%, #000 20%, transparent 75%);
  pointer-events: none;
}

.hero-inner{
  position: relative;
  display: grid;
  gap: 48px;
  align-items: center;
}

.eyebrow{
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 18px;
}
.hero h1{
  font-size: clamp(2.05rem, 6.2vw, 3.5rem);
  max-width: 17ch;
}
.hero-sub{
  margin-top: 20px;
  max-width: 48ch;
  font-size: 1.05rem;
  color: rgba(255,255,255,.72);
}
.hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}
.hero-stats{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid rgba(255,255,255,.14);
  max-width: 560px;
}
.hero-stats li{ display: flex; flex-direction: column; gap: 2px; }
.hero-stats .num{ font-size: clamp(1.25rem, 4.5vw, 1.6rem); font-weight: 800; color: var(--accent); letter-spacing: -.02em; }
.hero-stats span:last-child{ font-size: .78rem; line-height: 1.35; color: rgba(255,255,255,.6); }

/* Иллюстрация «поток заявок» */
.hero-visual{ display: none; }
.lead-panel{
  background: rgba(255,255,255,.055);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  padding: 20px;
  backdrop-filter: blur(6px);
  box-shadow: 0 24px 60px rgba(0,0,0,.35);
}
.lead-panel-head{
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
  color: rgba(255,255,255,.7);
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.lead-panel-head .dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(198,255,61,.18);
}
.lead-panel-badge{
  margin-left: auto;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  font-size: .72rem;
  padding: 3px 9px;
  border-radius: 999px;
}
.lead-list{ display: flex; flex-direction: column; }
.lead-list li{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.07);
}
.lead-avatar{
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(198,255,61,.16);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: .9rem;
  flex-shrink: 0;
}
.lead-body{ display: flex; flex-direction: column; line-height: 1.3; min-width: 0; }
.lead-body b{ font-size: .92rem; font-weight: 600; }
.lead-body span{ font-size: .78rem; color: rgba(255,255,255,.55); }
.lead-src{
  margin-left: auto;
  font-size: .7rem;
  color: rgba(255,255,255,.55);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 999px;
  padding: 3px 9px;
  white-space: nowrap;
}
.lead-src.wa{ color: var(--whatsapp); border-color: rgba(37,211,102,.4); }
.lead-panel-foot{
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  font-size: .78rem;
  color: rgba(255,255,255,.6);
}
.lead-bar{
  flex: 1;
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  overflow: hidden;
}
.lead-bar i{ display: block; height: 100%; background: var(--accent); border-radius: 999px; }
.lead-panel-foot b{ color: var(--accent); font-size: .9rem; }

@media (min-width: 980px){
  .hero{ padding: 88px 0 92px; }
  .hero-inner{ grid-template-columns: 1.05fr .95fr; gap: 56px; }
  .hero-visual{ display: block; }
}

/* ---------- Sections ---------- */
.section{ padding: 68px 0; }
.section-alt{ background: var(--paper-alt); }
.section-head{ max-width: 640px; }
.section-eyebrow{
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.section h2{ font-size: clamp(1.65rem, 4.4vw, 2.35rem); }
.section-lead{
  margin-top: 14px;
  color: var(--ink-soft);
  font-size: 1.02rem;
}

@media (min-width: 900px){
  .section{ padding: 92px 0; }
}

/* ---------- Cards / услуги ---------- */
.cards{
  display: grid;
  gap: 18px;
  margin-top: 40px;
}
.card{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover{ transform: translateY(-3px); box-shadow: var(--shadow); border-color: transparent; }
.card-icon{
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.card-icon svg{
  width: 24px;
  height: 24px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.card h3{ font-size: 1.2rem; margin-bottom: 10px; }
.card > p{ color: var(--ink-soft); font-size: .95rem; }
.card-list{ margin-top: 18px; display: flex; flex-direction: column; gap: 9px; }
.card-list li{
  font-size: .88rem;
  color: var(--ink-soft);
  padding-left: 20px;
  position: relative;
}
.card-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  border: 1.5px solid var(--ink);
}

@media (min-width: 720px){
  .services-grid{ grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Почему мы ---------- */
.why-grid{
  display: grid;
  gap: 28px;
  margin-top: 40px;
}
.why-num{
  font-size: .82rem;
  font-weight: 800;
  color: var(--accent-ink);
  background: var(--accent);
  width: 34px;
  height: 34px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.why-item h3{ font-size: 1.1rem; margin-bottom: 8px; }
.why-item p{ color: var(--ink-soft); font-size: .95rem; }

@media (min-width: 640px){
  .why-grid{ grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (min-width: 1000px){
  .why-grid{ grid-template-columns: repeat(4, 1fr); }
}

/* ---------- Отзывы ---------- */
.review-card{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
}
.stars{ color: #f5b53d; letter-spacing: 3px; font-size: 1rem; }
.review-text{
  margin-top: 14px;
  font-size: 1rem;
  color: var(--ink);
  flex: 1;
}
.review-author{
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 12px;
}
.avatar{
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.review-author div{ display: flex; flex-direction: column; font-size: .85rem; line-height: 1.35; }
.review-author strong{ font-size: .93rem; }
.review-author span{ color: var(--ink-soft); }

@media (min-width: 720px){
  .reviews-grid{ grid-template-columns: repeat(3, 1fr); }
}

/* ---------- Форма заявки ---------- */
.section-form{ background: var(--ink); color: #fff; }
.form-wrap{ display: grid; gap: 36px; align-items: start; }
.section-form .section-eyebrow{ color: rgba(255,255,255,.5); }
.section-form .section-lead{ color: rgba(255,255,255,.72); }
.form-wa-btn{ margin-top: 26px; }
.form-bullets{
  margin-top: 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: .9rem;
  color: rgba(255,255,255,.65);
}
.form-bullets li{ padding-left: 26px; position: relative; }
.form-bullets li::before{
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.lead-form{
  background: #fff;
  color: var(--ink);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.field{ display: flex; flex-direction: column; gap: 6px; }
.field label{ font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.field-opt{ font-weight: 400; }
.field input[type="text"],
.field input[type="tel"],
.field select,
.field textarea{
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  font-size: 1rem; /* 16px — чтобы iOS не зумил при фокусе */
  font-family: inherit;
  background: var(--paper-alt);
  color: var(--ink);
  resize: vertical;
  transition: border-color .15s ease, background-color .15s ease;
}
.field input:focus,
.field select:focus,
.field textarea:focus{
  background: #fff;
  border-color: var(--ink);
  outline: none;
}
.field.has-error input,
.field.has-error select,
.field.has-error textarea{ border-color: var(--danger); background: #fff6f6; }

.field-error{
  font-size: .8rem;
  color: var(--danger);
  display: none;
}
.field.has-error .field-error{ display: block; }

.consent{
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .84rem;
  font-weight: 400;
  color: var(--ink-soft);
  cursor: pointer;
}
.consent input{ margin-top: 3px; flex-shrink: 0; width: 18px; height: 18px; accent-color: var(--ink); }

.hp{ position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-note{
  font-size: .9rem;
  color: var(--success);
  font-weight: 600;
}
.form-note:empty{ display: none; }
.form-note.error{ color: var(--danger); }
.form-note a{ text-decoration: underline; }

@media (min-width: 900px){
  .form-wrap{ grid-template-columns: 1fr 1fr; gap: 56px; }
  .lead-form{ padding: 32px; }
}

/* ---------- Контакты ---------- */
.contacts-inner{ display: grid; gap: 32px; }
.contacts-list{
  margin-top: 28px;
  display: flex;
  flex-direction: column;
}
.contacts-list li{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 1rem;
}
.contacts-list a{ font-weight: 600; }
.contacts-list a:hover{ text-decoration: underline; }
.contacts-label{ color: var(--ink-soft); font-size: .85rem; flex-shrink: 0; }

.contacts-cta{
  background: var(--paper-alt);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.contacts-cta-title{ font-size: 1.2rem; font-weight: 700; letter-spacing: -.02em; }
.contacts-cta-sub{ font-size: .92rem; color: var(--ink-soft); }
.contacts-cta .btn{ margin-top: 6px; }

@media (min-width: 860px){
  .contacts-inner{ grid-template-columns: 1.15fr .85fr; align-items: center; gap: 48px; }
}

/* ---------- Подвал ---------- */
.site-footer{
  border-top: 1px solid var(--line);
  padding: 22px 0;
  /* запас, чтобы плавающая кнопка WhatsApp не перекрывала текст */
  padding-bottom: calc(22px + env(safe-area-inset-bottom, 0px));
}
.footer-inner{
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  font-size: .85rem;
  color: var(--ink-soft);
}
.footer-top:hover{ color: var(--ink); }

/* ---------- Плавающая кнопка WhatsApp ---------- */
.whatsapp-fab{
  position: fixed;
  right: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--whatsapp);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37,211,102,.42);
  z-index: 90;
  transition: transform .18s ease;
}
.whatsapp-fab:hover{ transform: scale(1.07); background: var(--whatsapp-dark); }
.whatsapp-fab svg{ width: 30px; height: 30px; fill: #fff; }

/* ---------- Появление при скролле ---------- */
.js .reveal{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .55s ease, transform .55s ease;
  will-change: opacity, transform;
}
.js .reveal.is-visible{
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  .js .reveal{ opacity: 1; transform: none; transition: none; }
  *, *::before, *::after{
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}