/*
  Небольшие анимации сайта: наведение, нажатие, появление блоков при прокрутке.
  Всё отключается, если в системе включено «Уменьшить движение».
  Подключается на всех страницах (русских и английских).
*/
/* ---------- Подпись в шапке: иконка + «Максим / AI Developer» ---------- */
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-family: var(--font-text); }
.logo img { width: 32px; height: 32px; border-radius: 8px; flex: none; }
.logo-text { display: flex; flex-direction: column; line-height: 1.1; }
.logo-name { font-family: var(--font-title); font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; color: var(--ink); }
.logo-role { font-family: var(--font-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-top: 3px; }

/* ---------- Частые вопросы (раскрывающийся список) ---------- */
.faq { display: grid; gap: 10px; max-width: 48rem; }
.faq details { background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.faq summary {
  list-style: none; cursor: pointer; padding: 16px 52px 16px 20px; position: relative;
  font-family: var(--font-title); font-weight: 600; font-size: 1.02rem; line-height: 1.35;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ''; position: absolute; right: 20px; top: 50%; width: 12px; height: 12px; margin-top: -8px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent); transform: rotate(45deg);
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 14px; }
.faq-a { padding: 0 20px 18px; color: var(--muted); }
.faq-a p { margin: 0; }

/* ---------- Видео-визитка: неброская ссылка + окно поверх страницы ---------- */
.video-link {
  margin-top: 14px; display: inline-flex; align-items: center; gap: 10px;
  background: none; border: 0; padding: 4px 0; cursor: pointer;
  font: 500 0.95rem var(--font-text); color: var(--muted);
}
.video-link:hover { color: var(--ink); }
.video-link:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; border-radius: 6px; }
.video-play {
  width: 30px; height: 30px; border-radius: 50%; border: 1.5px solid var(--line); flex: none; position: relative;
}
.video-play::after {
  content: ''; position: absolute; left: 11px; top: 8.5px;
  border-left: 10px solid var(--accent); border-top: 6.5px solid transparent; border-bottom: 6.5px solid transparent;
}
.video-sub { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); opacity: 0.8; }
.video-dialog {
  padding: 0; border: 0; background: transparent; overflow: visible;
  max-width: min(92vw, 420px); width: 100%; margin: auto;
}
.video-dialog::backdrop { background: rgba(6, 9, 20, 0.78); backdrop-filter: blur(4px); }
.video-dialog video {
  display: block; width: 100%; height: auto; max-height: 86vh; aspect-ratio: 9 / 16; object-fit: contain;
  border-radius: 18px; background: #0b0f1d; box-shadow: 0 30px 80px -20px rgba(0, 0, 0, 0.7);
}
.video-close {
  position: absolute; top: -14px; right: -14px; z-index: 2; width: 40px; height: 40px; border-radius: 50%;
  border: 0; cursor: pointer; background: var(--surface); color: var(--ink); font-size: 1.5rem; line-height: 1;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
}
.video-close:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.video-note { margin: 10px 0 0; text-align: center; color: #c8cee6; font-size: 0.85rem; }
@media (max-width: 600px) { .video-close { top: 8px; right: 8px; } }

/* ---------- Из чего складывается стоимость ---------- */
.price-cards { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .price-cards { grid-template-columns: repeat(3, 1fr); } }
.pc { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 24px; display: flex; flex-direction: column; min-width: 0; }
.pc-tag { margin: 0 0 8px; font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.pc h3 { font-size: 1.2rem; margin: 0 0 10px; }
.pc-price { margin: 0 0 16px; font-family: var(--font-mono); font-size: 1.15rem; font-weight: 600; font-variant-numeric: tabular-nums; }
.pc-price span { font-family: var(--font-text); font-size: 0.85rem; font-weight: 400; color: var(--muted); }
.pc ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.pc li { position: relative; padding-left: 24px; color: var(--muted); font-size: 0.95rem; }
.pc li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.pc-note { margin: 16px 0 0; padding-top: 12px; border-top: 1px dashed var(--line); font-size: 0.88rem; color: var(--ink); }
.price-foot { margin-top: 18px; display: grid; gap: 8px; max-width: 48rem; }
.price-foot p { margin: 0; color: var(--muted); }
.price-foot b { color: var(--ink); }

/* ---------- Форма заявки в контактах ---------- */
.contact-grid { display: grid; gap: 32px; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 860px) { .contact-grid { grid-template-columns: 1fr 1.05fr; } }
.lead-form { display: grid; gap: 14px; min-width: 0; }
.lead-form label { display: grid; gap: 6px; font-weight: 600; font-size: 0.95rem; }
.lead-form input, .lead-form textarea {
  font: inherit; font-weight: 400; color: var(--ink); background: var(--bg);
  border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; width: 100%;
}
.lead-form textarea { min-height: 120px; resize: vertical; }
.lead-form input:focus-visible, .lead-form textarea:focus-visible, .lead-form button:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.lead-form .btn { font: inherit; font-weight: 600; cursor: pointer; justify-self: start; }
.lead-form .btn[disabled] { opacity: 0.6; cursor: default; transform: none; }
.lead-form .form-note { margin: 0; font-size: 0.82rem; color: var(--muted); }
.lead-form .form-error a { color: inherit; font-weight: 600; }
.form-ok { margin: 0; color: var(--accent); font-weight: 600; }
.contact .lead-form p { margin: 0; max-width: none; }
.lead-form label.check, .review-form label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 0.88rem; line-height: 1.5; color: var(--muted); }
.lead-form label.check input { width: 18px; height: 18px; padding: 0; margin: 2px 0 0; flex: none; accent-color: var(--accent); }
.lead-form label.check a, .review-form label.check a { color: var(--accent); }
footer a { color: inherit; }
.contact .lead-form .form-ok { color: var(--accent); }
.contact .lead-form .form-error { color: var(--danger); }
.hp { position: absolute !important; left: -9999px !important; width: 1px; height: 1px; opacity: 0; }

/* ---------- Полупрозрачный знак сайта в правом нижнем углу ---------- */
.site-mark {
  position: fixed; right: 16px; bottom: 16px; z-index: 40;
  width: 44px; height: 44px; border-radius: 11px;
  opacity: 0.3; pointer-events: none; user-select: none;
}
@media (max-width: 600px) { .site-mark { width: 34px; height: 34px; right: 12px; bottom: 12px; border-radius: 9px; } }

@media (prefers-reduced-motion: no-preference) {
  .logo img { transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); }
  .logo:hover img { transform: rotate(-8deg) scale(1.06); }


  /* ---------- Меню: подчёркивание выезжает слева ---------- */
  nav a { position: relative; transition: color 0.2s ease; }
  nav a::after {
    content: ''; position: absolute; left: 0; right: 0; bottom: -3px; height: 2px;
    background: var(--accent); border-radius: 2px;
    transform: scaleX(0); transform-origin: left; transition: transform 0.25s ease;
  }
  nav a:hover::after, nav a:focus-visible::after { transform: scaleX(1); }

  /* ---------- Переключатель RU / EN ---------- */
  .lang a { transition: background-color 0.2s ease, color 0.2s ease; }
  .lang a:not([aria-current="page"]):hover { background: color-mix(in srgb, var(--accent) 14%, transparent); }

  /* ---------- Кнопки: подъём при наведении, «нажатие» при клике ---------- */
  .btn { transition: transform 0.15s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease; }
  .btn:hover { box-shadow: 0 6px 18px -8px color-mix(in srgb, var(--accent) 70%, transparent); }
  .btn:active { transform: translateY(0) scale(0.97); }

  /* ---------- Таблица услуг: подсветка строки ---------- */
  .service { position: relative; isolation: isolate; }
  .service::before {
    content: ''; position: absolute; inset: 0 -14px; z-index: -1; border-radius: 12px;
    background: var(--surface); opacity: 0; transition: opacity 0.25s ease;
  }
  .service::after {
    content: ''; position: absolute; left: -14px; top: 18px; bottom: 18px; width: 3px; border-radius: 3px;
    background: var(--accent); transform: scaleY(0); transition: transform 0.25s ease;
  }
  .service h3 { transition: transform 0.25s ease, color 0.25s ease; }
  .service .meta { transition: color 0.25s ease; }
  .service:hover::before { opacity: 1; }
  .service:hover::after { transform: scaleY(1); }
  .service:hover h3 { transform: translateX(6px); color: var(--accent); }

  /* ---------- Карточки работ: приподнимаются ---------- */
  .work { transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
  .work:hover {
    transform: translateY(-4px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
    box-shadow: 0 16px 34px -20px color-mix(in srgb, var(--accent) 60%, transparent);
  }
  .work a.go { display: inline-block; transition: transform 0.2s ease; }
  .work:hover a.go { transform: translateX(4px); }
  .tags li { transition: border-color 0.2s ease, color 0.2s ease; }
  .work:hover .tags li { border-color: color-mix(in srgb, var(--accent) 35%, var(--line)); }

  /* ---------- Этапы работы: кружок с номером ---------- */
  .steps li::before { transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); }
  .steps li:hover::before { transform: scale(1.15); }

  /* ---------- Форма отзыва: подсветка поля в фокусе ---------- */
  .review-form input[type="text"], .review-form select, .review-form textarea {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }
  .review-form input[type="text"]:focus, .review-form select:focus, .review-form textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
  }
  .form-result:not([hidden]), .form-error:not([hidden]) { animation: pop-in 0.3s ease; }

  /* ---------- Карточки на странице 3D-модели ---------- */
  .card { transition: border-color 0.25s ease, transform 0.25s ease; }
  .card:hover { border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }

  .pc { transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease; }
  .pc:hover { transform: translateY(-3px); border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); box-shadow: 0 16px 34px -22px color-mix(in srgb, var(--accent) 60%, transparent); }
  .pc.reveal.in:hover { transform: translateY(-3px); }

  /* ---------- Частые вопросы: плавное раскрытие ---------- */
  .faq details { transition: border-color 0.25s ease; }
  .faq details:hover, .faq details[open] { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }
  .faq summary::after { transition: transform 0.3s ease, margin-top 0.3s ease; }
  .faq summary { transition: color 0.2s ease; }
  .faq summary:hover { color: var(--accent); }
  .faq details[open] .faq-a { animation: faq-open 0.35s ease; }
  @keyframes faq-open { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

  .lead-form input, .lead-form textarea { transition: border-color 0.2s ease, box-shadow 0.2s ease; }
  .lead-form input:focus, .lead-form textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent); }
  .form-ok:not([hidden]) { animation: pop-in 0.3s ease; }

  /* ---------- Видео-визитка: анимации ---------- */
  .video-link, .video-play { transition: color 0.2s ease, border-color 0.2s ease, transform 0.25s ease; }
  .video-link:hover .video-play { border-color: var(--accent); transform: scale(1.08); }
  .video-dialog[open] { animation: video-in 0.3s ease; }
  .video-dialog[open]::backdrop { animation: video-fade 0.3s ease; }
  @keyframes video-in { from { opacity: 0; transform: translateY(16px) scale(0.97); } to { opacity: 1; transform: none; } }
  @keyframes video-fade { from { opacity: 0; } to { opacity: 1; } }

  /* ---------- Появление блоков при прокрутке (класс ставит anim.js) ---------- */
  .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
  .reveal.in { opacity: 1; transform: none; }
  /* у карточек работ свой transform при наведении - не мешаем ему после появления */
  .work.reveal.in { transition: opacity 0.6s ease, transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease; }
  .work.reveal.in:hover { transform: translateY(-4px); }

  @keyframes pop-in {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: none; }
  }
}