/* ====== БАЗА (Этап 0) ====== */
:root{
  --color-bg: #0f172a;
  --color-surface: #111827;
  --color-card: #0b1220;
  --color-text: #e5e7eb;
  --color-muted: #9aa3b2;
  --color-primary: #8b5cf6;
  --color-accent: #22d3ee;
  --color-success: #34d399;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 6px 18px rgba(2, 6, 23, .25);
  --shadow-md: 0 10px 30px rgba(2, 6, 23, .35);
  --container: 1200px;
}

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

html, body { height: 100%; }

body{
  margin: 0;
  font-family: "Manrope", system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  color: var(--color-text);
  background:
    radial-gradient(1200px 500px at 80% -10%, rgba(34,211,238,.12), transparent 60%),
    radial-gradient(900px 400px at 10% -10%, rgba(139,92,246,.16), transparent 60%),
    var(--color-bg);
  font-size: 16px;
  line-height: 1.6;
}

h1, h2, h3{
  font-family: "Playfair Display", Georgia, serif;
  line-height: 1.2;
  margin: 0 0 .5em;
  color: #fff;
}

p { margin: 0 0 1rem; color: var(--color-text); }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
.visually-hidden{ position:absolute!important;clip:rect(1px,1px,1px,1px);padding:0;border:0;height:1px;width:1px;overflow:hidden;white-space:nowrap; }
.container{ width:100%; max-width:var(--container); padding:0 16px; margin:0 auto; }

/* Кнопки */
.button{
  --btn-bg: var(--color-primary);
  --btn-text: #fff;
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.8rem 1.1rem; border-radius:9999px;
  background:var(--btn-bg); color:var(--btn-text);
  border:1px solid transparent; box-shadow:var(--shadow-sm);
  transition: transform .15s ease, box-shadow .15s ease, background .2s ease, border-color .2s ease;
  font-weight:700;
}
.button:hover{ transform:translateY(-1px); box-shadow:var(--shadow-md); }
.button:active{ transform:translateY(0); }
.button--primary{ background:linear-gradient(135deg, var(--color-primary), var(--color-accent)); border-color:rgba(255,255,255,.08); }
.button--ghost{ --btn-bg:transparent; --btn-text:var(--color-text); border-color:rgba(255,255,255,.12); backdrop-filter: blur(8px); }

/* ====== HEADER (Этап 1) ====== */
.header{ position:sticky; top:0; z-index:50; background: linear-gradient(180deg, rgba(11,18,32,.9), rgba(11,18,32,.65) 70%, rgba(11,18,32,0)); backdrop-filter: blur(10px); }
.header__container{ display:grid; grid-template-columns:auto 1fr auto; align-items:center; gap:12px; padding:14px 0; }
.header__logo{ display:inline-flex; align-items:center; gap:.6rem; color:#fff; font-weight:800; letter-spacing:.2px; }
.logo__mark{ width:22px; height:22px; border-radius:6px; background: conic-gradient(from 0deg, var(--color-accent), var(--color-primary)); box-shadow: inset 0 0 10px rgba(255,255,255,.2), 0 6px 14px rgba(2,6,23,.5); }
.logo__text{ font-weight:800; }
.header__toggle{ display:inline-flex; align-items:center; justify-content:center; width:40px;height:40px; border-radius:10px; background:rgba(255,255,255,.06); border:1px solid rgba(255,255,255,.12); color:#fff; box-shadow:var(--shadow-sm); }
.header__toggle .icon{ width:22px; height:22px; }
@media (min-width:960px){ .header__toggle{ display:none; } }
.header__nav{ grid-column:1 / -1; display:none; padding:8px 0 14px; }
.header__nav.is-open{ display:block; }
@media (min-width:960px){ .header__nav{ display:block; grid-column:auto; padding:0; } }
.nav__list{ list-style:none; margin:0; padding:0; display:flex; flex-wrap:wrap; align-items:center; gap:.25rem .75rem; }
@media (min-width:960px){ .nav__list{ gap:.25rem 1rem; } }
.nav__link{ display:inline-block; padding:.6rem .8rem; border-radius:10px; color:var(--color-text); transition: background .2s ease, color .2s ease, transform .12s ease; }
.nav__link:hover{ background:rgba(255,255,255,.06); color:#fff; transform: translateY(-1px); }
.nav__item--cta .button{ padding:.6rem 1rem; }
.header__note{ border-top:1px solid rgba(255,255,255,.06); border-bottom:1px solid rgba(255,255,255,.06); background:rgba(255,255,255,.03); }
.header__note-text{ display:flex; flex-wrap:wrap; gap:.5rem .75rem; align-items:center; font-size:.95rem; color:var(--color-muted); padding:.6rem 0; }
.header__note-link{ font-weight:700; }
.header__note-badge{ display:inline-flex; align-items:center; gap:.35rem; padding:.25rem .6rem; border-radius:9999px; border:1px dashed rgba(255,255,255,.16); color:var(--color-text); background:rgba(139,92,246,.08); font-size:.85rem; }

/* ====== SECTIONS BASE ====== */
.section{ padding: 56px 0; }
.section--alt{ background: rgba(255,255,255,.02); border-top:1px solid rgba(255,255,255,.04); border-bottom:1px solid rgba(255,255,255,.04); }
.section__head{ margin-bottom: 20px; }
.section__lead{ color: var(--color-muted); max-width: 780px; }

/* ====== HERO (Этап 3) ====== */
.hero{ position: relative; overflow: hidden; }
.hero__bg{ position:absolute; inset:0; pointer-events:none; }
.hero__orb{ position:absolute; width:42vmin; height:42vmin; border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(34,211,238,.35), transparent 60%), radial-gradient(circle at 70% 70%, rgba(139,92,246,.35), transparent 60%);
  filter: blur(30px); opacity:.35; animation: float 12s ease-in-out infinite;
}
.hero__orb--one{ top:-10vmin; left:-6vmin; }
.hero__orb--two{ right:-10vmin; bottom:-6vmin; animation-delay: -6s; }
@keyframes float{ 0%,100%{ transform: translateY(0) translateX(0); } 50%{ transform: translateY(10px) translateX(8px); } }

.hero__container{ display:grid; gap:24px; align-items:center; }
@media (min-width: 960px){ .hero__container{ grid-template-columns: 1.1fr .9fr; gap: 32px; } }
.hero__title{ font-size: clamp(28px, 5vw, 46px); }
.hero__title-rotate{ display:block; font-size: .9em; color: var(--color-accent); }
.rotate__item{ display:none; opacity:0; transition: opacity .4s ease; }
.rotate__item.is-active{ display:inline; opacity:1; }
.hero__subtitle{ color: var(--color-muted); max-width: 720px; }
.hero__cta{ display:flex; gap:.6rem; flex-wrap:wrap; margin: 12px 0 8px; }
.hero__bullet{ list-style:none; margin: 8px 0 0; padding: 0; display:grid; gap:.35rem; color: var(--color-text); }
.hero__bullet i{ width:18px; height:18px; transform: translateY(2px); margin-right:.4rem; }
.hero__fineprint{ margin-top: 8px; color: var(--color-muted); font-size: .95rem; }
.hero__media{ position:relative; }
.hero__image{ border-radius: var(--radius-xl); border:1px solid rgba(255,255,255,.08); box-shadow: var(--shadow-md); transform: translateZ(0); }

/* ====== EXPERTISE ====== */
.cards{ display:grid; gap:16px; }
@media (min-width: 768px){ .cards--3{ grid-template-columns: repeat(3, 1fr); } }
.card{ background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)); border:1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); padding:16px; box-shadow: var(--shadow-sm); transition: transform .15s ease, box-shadow .15s ease, border-color .2s ease; }
.card:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: rgba(255,255,255,.16); }
.card__media{ border-radius: 12px; border:1px solid rgba(255,255,255,.06); margin-bottom: 10px; }
.card__title{ font-size: 1.15rem; }
.card__text{ color: var(--color-muted); }
.card__link{ font-weight:700; }

/* ====== PLATFORM ====== */
.features{ display:grid; gap:14px; margin-top: 8px; }
@media (min-width: 768px){ .features{ grid-template-columns: repeat(3, 1fr); } }
.feature{ display:flex; gap:.8rem; padding:14px; border:1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); background: rgba(255,255,255,.02); transition: transform .15s ease, border-color .2s ease; }
.feature:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.16); }
.feature__icon{ width:28px; height:28px; margin-top: 4px; }
.feature__title{ margin-bottom:.2rem; font-size:1.05rem; }
.feature__text{ color: var(--color-muted); }
.platform__cta{ display:flex; gap:.6rem; flex-wrap:wrap; margin-top: 16px; }

/* ====== REVEAL (легкая анимация появления) ====== */
[data-reveal]{ opacity:0; transform: translateY(8px); transition: opacity .4s ease, transform .4s ease; }
[data-reveal].is-visible{ opacity:1; transform: translateY(0); }

/* ====== FOOTER (Этап 2) ====== */
.footer{ margin-top: 56px; background: linear-gradient(180deg, rgba(11,18,32,.4), rgba(11,18,32,.9)), var(--color-card); border-top: 1px solid rgba(255,255,255,.08); }
.footer__grid{ display:grid; grid-template-columns:1fr; gap:28px; padding:36px 0; }
@media (min-width:720px){ .footer__grid{ grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap:36px; } }
.footer__logo{ display:inline-flex; align-items:center; gap:.6rem; margin-bottom:.5rem; color:#fff; }
.footer__tagline{ color: var(--color-muted); }
.footer__title{ font-size:1.05rem; margin-bottom:.75rem; }
.footer__links{ list-style:none; margin:0; padding:0; display:grid; gap:.35rem; }
.footer__links a{ color: var(--color-text); opacity:.9; }
.footer__links a:hover{ opacity:1; }
.footer__contacts{ list-style:none; margin:0; padding:0; display:grid; gap:.5rem; }
.footer__contacts i{ width:18px; height:18px; margin-right:.5rem; transform: translateY(2px); }
.footer__address{ font-style:normal; color: var(--color-text); }
.footer__fineprint{ margin-top:.6rem; font-size:.9rem; color: var(--color-muted); }
.footer__bottom{ border-top:1px solid rgba(255,255,255,.08); padding:16px 0; }
.footer__bottom-container{ display:flex; align-items:center; gap:12px; justify-content:space-between; flex-wrap:wrap; }
.footer__copy{ color: var(--color-muted); }
.link--cta{ font-weight:700; }

/* Подготовка под будущие страницы политик (Этап 5, заранее) */
.pages{ padding:40px 0; }
.pages .container{ max-width: 820px; }
.pages h1{ font-size: clamp(28px, 4vw, 40px); margin-bottom:.4em; }
.pages h2{ margin-top:1.2em; }
.pages p{ color: var(--color-text); }
.pages ul{ padding-left: 1.1em; }
.pages a{ text-decoration: underline; }

/* Микро-эффекты */
a, .button, .nav__link { will-change: transform; }

/* ====== CASES ====== */
.cases{ display:grid; gap:16px; }
@media (min-width: 960px){ .cases{ grid-template-columns: repeat(3,1fr); } }
.case{ display:flex; flex-direction:column; background: rgba(255,255,255,.02); border:1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); overflow:hidden; box-shadow: var(--shadow-sm); transition: transform .15s ease, border-color .2s ease; }
.case:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.16); }
.case__media{ aspect-ratio: 16/9; object-fit: cover; }
.case__body{ padding:14px; display:grid; gap:.5rem; }
.case__title{ font-size:1.1rem; }
.case__text{ color: var(--color-muted); }
.kpi{ display:flex; flex-wrap:wrap; gap:.6rem 1rem; list-style:none; margin:.25rem 0 .5rem; padding:0; }
.kpi i{ width:18px; height:18px; transform: translateY(2px); margin-right:.35rem; }

/* ====== BLOG ====== */
.posts{ display:grid; gap:16px; }
@media (min-width: 960px){ .posts{ grid-template-columns: repeat(3,1fr); } }
.post{ display:flex; flex-direction:column; background: rgba(255,255,255,.02); border:1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); overflow:hidden; transition: transform .15s ease, border-color .2s ease; }
.post:hover{ transform: translateY(-2px); border-color: rgba(255,255,255,.16); }
.post__media img{ aspect-ratio: 16/9; object-fit: cover; display:block; }
.post__body{ padding:14px; display:grid; gap:.4rem; }
.post__tag{ align-self:start; font-size:.85rem; padding:.15rem .5rem; border:1px solid rgba(255,255,255,.16); border-radius:9999px; color: var(--color-text); }
.post__title a{ color:#fff; }
.post__excerpt{ color: var(--color-muted); }
.post__meta{ color: var(--color-muted); font-size:.9rem; }

/* ====== ACCORDION (FAQ) ====== */
.accordion{ display:grid; gap:10px; }
.accordion__item{ background: rgba(255,255,255,.02); border:1px solid rgba(255,255,255,.08); border-radius: var(--radius-lg); overflow:hidden; }
.accordion__trigger{ width:100%; text-align:left; display:flex; justify-content:space-between; align-items:center; gap:.75rem; padding:14px; background:transparent; color:#fff; border:0; cursor:pointer; }
.accordion__trigger i{ width:20px; height:20px; transition: transform .2s ease; }
.accordion__trigger[aria-expanded="true"] i{ transform: rotate(180deg); }
.accordion__panel{ padding: 0 14px 14px; color: var(--color-muted); }
.section__note{ color: var(--color-muted); margin-left:.5rem; }

/* ====== CONTACT FORM ====== */
.contact__container{ max-width: 780px; }
.form{ display:grid; gap:14px; }
.form__row{ display:grid; gap:.35rem; }
.form__row--inline .captcha{ display:flex; gap:.5rem; align-items:center; flex-wrap:wrap; }
.form__label{ font-weight:700; color:#fff; }
.form__input{
  width:100%; padding:.8rem .9rem; border-radius:12px;
  border:1px solid rgba(255,255,255,.12); background: rgba(255,255,255,.03);
  color:#fff; outline:none; transition: border-color .2s ease, box-shadow .2s ease;
}
.form__input:focus{ border-color: rgba(34,211,238,.6); box-shadow: 0 0 0 3px rgba(34,211,238,.2); }
.form__input::placeholder{ color: var(--color-muted); }
.form__row--agree .checkbox{ display:flex; gap:.5rem; align-items:flex-start; color: var(--color-text); }
.form__row--agree a{ text-decoration: underline; }
.form__error{ min-height: 1.1em; font-size:.9rem; color:#ff9ea1; }
.captcha__task{ color: var(--color-text); }
.captcha__input{ max-width: 120px; }
.captcha__refresh{
  display:inline-flex; align-items:center; justify-content:center;
  width:40px; height:40px; border-radius:10px; border:1px solid rgba(255,255,255,.12);
  background: rgba(255,255,255,.06); color:#fff; cursor:pointer;
}
.captcha__refresh i{ width:18px; height:18px; }

.form__actions{ display:flex; gap:.6rem; align-items:center; flex-wrap:wrap; margin-top: 4px; }
.form__note{ color: var(--color-muted); }
.form__submit[disabled]{ opacity:.7; cursor:not-allowed; }

.form__status{
  margin-top: 8px;
  padding:.8rem 1rem;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.16);
  background: rgba(34,197,94,.08);
  color:#dcfce7;
}
.form__status.is-error{
  background: rgba(239,68,68,.08);
  color:#fee2e2;
}

/* Поля с ошибкой */
.form__input.is-invalid{ border-color: rgba(239,68,68,.6); box-shadow: 0 0 0 3px rgba(239,68,68,.18); }


/* ====== COOKIE POPUP ====== */
.cookie{
  position: fixed; inset-inline: 0; bottom: 0; z-index: 70;
  display: grid; place-items: center; padding: 10px;
  pointer-events: none; /* вкл. только внутренний бокс */
}
.cookie__inner{
  pointer-events: auto;
  width: min(100%, 980px);
  display: flex; gap: .8rem; align-items: center; justify-content: space-between; flex-wrap: wrap;
  background: rgba(17,24,39,.9);
  border: 1px solid rgba(255,255,255,.12);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-xl);
  padding: 12px;
  transform: translateY(12px);
  opacity: 0;
  transition: transform .25s ease, opacity .25s ease;
}
.cookie.is-visible .cookie__inner{ transform: translateY(0); opacity: 1; }
.cookie__text{ margin: 0; color: var(--color-text); }
.cookie__text a{ text-decoration: underline; color: var(--color-accent); }
.cookie__btn{ white-space: nowrap; }

/* ====== POLICY PAGES — финализация типографики ====== */
.pages{ padding: 48px 0; }
.pages .container{ max-width: 860px; }
.pages h1{ font-size: clamp(28px, 4.5vw, 42px); margin-bottom: .6em; }
.pages h2{ font-size: clamp(20px, 2.6vw, 28px); margin: 1.1em 0 .4em; }
.pages p{ margin: 0 0 1em; }
.pages ul{ margin: .6em 0 1em; padding-left: 1.1em; }
.pages li{ margin: .35em 0; }
.pages li strong{ font-weight: 700; color: #fff; }
.pages a{ text-decoration: underline; }
.pages a:hover{ opacity: .9; }