/* ============================================================
   СТУДИЯ ПРЕЗЕНТАЦИЙ - тёмный премиум, акцент #6F3DC2
   Mobile-first, без горизонтального скролла
   ============================================================ */

:root {
  --bg: #111111;
  --bg-alt: #161616;
  --card: #1a1a1a;
  --card-2: #1f1f1f;
  --line: #2a2a2a;
  --text: #ffffff;
  --muted: #c8c8c8;
  --dim: #8a8a8a;
  --accent: #6F3DC2;
  --accent-soft: #8b5cf6;
  --accent-glow: rgba(111, 61, 194, 0.35);
  --radius: 16px;
  --header-h: 68px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--muted);
  font-family: 'Manrope', -apple-system, 'Segoe UI', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

img, video, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { color: var(--text); margin: 0; line-height: 1.15; }
p { margin: 0; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 20px;
  min-width: 0;
}

/* ---------- Кнопки ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: inherit;
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  will-change: transform;
}
.btn__icon { flex: none; }

.btn--primary {
  background: linear-gradient(135deg, #7c46d8, var(--accent) 55%, #5c30a6);
  color: #fff;
  box-shadow: 0 10px 30px var(--accent-glow);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 16px 40px rgba(111, 61, 194, 0.5);
}
.btn--primary:active { transform: translateY(0); }

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}
.btn--ghost:hover {
  border-color: var(--accent);
  background: rgba(111, 61, 194, 0.12);
  transform: translateY(-2px);
}

.btn--lg { padding: 17px 32px; font-size: 17px; }
.btn--sm { padding: 10px 20px; font-size: 14px; }

/* ---------- Шапка ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  background: rgba(17, 17, 17, 0);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.header.is-scrolled {
  background: rgba(17, 17, 17, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
}
.header__inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.header__logo img { width: 190px; height: auto; }

.header__nav {
  display: flex;
  align-items: center;
  gap: 26px;
}
.header__link {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}
.header__link:hover { color: var(--accent-soft); }

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: none;
  border: 0;
  cursor: pointer;
}
.burger span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
}
.burger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Kicker (нумерация секций) ---------- */
.kicker {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--accent-soft);
  margin-bottom: 18px;
}
.kicker--center { text-align: center; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: calc(var(--header-h) + 40px) 0 80px;
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(17, 17, 17, 0.55) 0%, rgba(17, 17, 17, 0.35) 45%, #111111 100%),
    linear-gradient(115deg, rgba(17, 17, 17, 0.92) 0%, rgba(17, 17, 17, 0.65) 45%, rgba(111, 61, 194, 0.38) 100%);
}
.hero__content {
  position: relative;
  z-index: 1;
}
.hero__title {
  font-size: clamp(34px, 7.2vw, 72px);
  font-weight: 800;
  letter-spacing: -0.02em;
  max-width: 15ch;
  margin-bottom: 22px;
}
.accent-dot { color: var(--accent-soft); }
.hero__subtitle {
  font-size: clamp(16px, 2.2vw, 19px);
  max-width: 52ch;
  color: var(--muted);
  margin-bottom: 34px;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
}
.hero__badge {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
}
.hero__badge-num {
  font-size: 22px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
}
.hero__badge-text {
  font-size: 13px;
  color: var(--dim);
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 26px;
  transform: translateX(-50%);
  width: 24px;
  height: 38px;
  border: 2px solid rgba(200, 200, 200, 0.35);
  border-radius: 14px;
  z-index: 1;
}
.hero__scroll span {
  position: absolute;
  left: 50%;
  top: 7px;
  width: 4px;
  height: 8px;
  margin-left: -2px;
  border-radius: 2px;
  background: var(--accent-soft);
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0%, 100% { transform: translateY(0); opacity: 1; }
  60% { transform: translateY(10px); opacity: 0.2; }
}

/* ---------- Секции ---------- */
.section { padding: 96px 0; }
.section--alt { background: var(--bg-alt); }
.section__title {
  font-size: clamp(30px, 5.4vw, 54px);
  font-weight: 800;
  letter-spacing: -0.015em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section__lead {
  color: var(--dim);
  font-size: 16.5px;
  max-width: 56ch;
  margin-bottom: 52px;
}

/* ---------- Портфолио ---------- */
.works {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 255px), 1fr));
  gap: 22px;
}
.work {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 18px 24px;
  min-width: 0;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.work:hover {
  transform: translateY(-6px);
  border-color: rgba(111, 61, 194, 0.55);
  box-shadow: var(--shadow);
}
.work__slide { margin-bottom: 18px; }
.work__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-radius: 10px;
  border: 1px solid #2e2e2e;
  transition: transform 0.35s ease;
}
.work:hover .work__img { transform: scale(1.03) rotate(-0.5deg); }

/* мини-макет слайда */
.slide {
  background: #202020;
  border: 1px solid #2e2e2e;
  border-radius: 10px;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s ease;
}
.work:hover .slide { transform: scale(1.03) rotate(-0.5deg); }
.slide__bar {
  display: flex;
  gap: 5px;
  padding: 8px 10px;
  border-bottom: 1px solid #2e2e2e;
}
.slide__bar i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #3a3a3a;
}
.slide__bar i:first-child { background: var(--accent); }
.slide__body {
  flex: 1;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
}
.slide__lines { display: flex; flex-direction: column; gap: 6px; }
.slide__lines b {
  display: block;
  height: 7px;
  border-radius: 4px;
  background: #e6e6e6;
}
.slide__lines b.dim { background: #3d3d3d; height: 5px; }
.w40 { width: 40%; } .w45 { width: 45%; } .w50 { width: 50%; }
.w55 { width: 55%; } .w60 { width: 60%; } .w65 { width: 65%; }
.w70 { width: 70%; } .w75 { width: 75%; } .w80 { width: 80%; }

.slide__viz { flex: 1; min-height: 0; width: 100%; }
.viz-dim { fill: #3d3d3d; }
.viz-acc { fill: var(--accent); }
.viz-line { stroke: var(--accent-soft); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.viz-num { fill: #e6e6e6; font: 800 16px 'Manrope', sans-serif; }
.viz-ring-dim { stroke: #3d3d3d; stroke-width: 7; }
.viz-ring-acc { stroke: var(--accent); stroke-width: 7; stroke-linecap: round; }

.slide__offer {
  display: flex;
  gap: 12px;
  align-items: center;
  background: #262626;
  border-radius: 8px;
  padding: 10px 12px;
}
.slide__offer .slide__lines { flex: 1; }
.slide__price {
  flex: none;
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  padding: 6px 8px;
  white-space: nowrap;
}
.slide__grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  min-height: 0;
}
.slide__grid span {
  background: #333;
  border-radius: 5px;
  min-height: 18px;
}
.slide__grid span.acc { background: rgba(111, 61, 194, 0.65); }
.slide__checks { display: flex; flex-direction: column; gap: 8px; }
.slide__check { display: flex; align-items: center; gap: 8px; }
.slide__check svg { flex: none; }
.slide__check b {
  display: block;
  height: 5px;
  border-radius: 3px;
  background: #3d3d3d;
}
.slide__tag {
  align-self: flex-start;
  font-size: 11px;
  font-weight: 700;
  color: var(--accent-soft);
  border: 1px solid rgba(111, 61, 194, 0.5);
  border-radius: 999px;
  padding: 4px 10px;
}

.work__title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}
.work__text {
  font-size: 14px;
  color: var(--dim);
}

/* карточка-CTA в портфолио */
.work--cta {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  text-decoration: none;
  background: linear-gradient(150deg, rgba(111, 61, 194, 0.25), var(--card) 65%);
  border-color: rgba(111, 61, 194, 0.45);
}
.work--cta__title { font-size: 20px; font-weight: 800; color: var(--text); }
.work--cta__text { font-size: 14px; color: var(--muted); }
.work--cta__arrow {
  font-size: 26px;
  color: var(--accent-soft);
  transition: transform 0.3s ease;
}
.work--cta:hover .work--cta__arrow { transform: translateX(8px); }

/* ---------- Что входит ---------- */
.structure {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  align-items: start;
}
.structure__cards {
  display: flex;
  flex-direction: column;
  gap: 22px;
  min-width: 0;
}
.scard {
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.scard:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.scard__num {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.2em;
  color: var(--accent-soft);
}
.scard__title {
  font-size: 22px;
  font-weight: 800;
  margin: 10px 0 12px;
}
.scard__text { font-size: 15px; color: var(--muted); }

.snote {
  display: flex;
  gap: 20px;
  align-items: center;
  background: linear-gradient(135deg, rgba(111, 61, 194, 0.18), rgba(111, 61, 194, 0.05));
  border: 1px solid rgba(111, 61, 194, 0.4);
  border-radius: var(--radius);
  padding: 24px 28px;
}
.snote__num {
  flex: none;
  font-size: clamp(34px, 6vw, 46px);
  font-weight: 800;
  color: var(--accent-soft);
  line-height: 1;
}
.snote__text { font-size: 14.5px; color: var(--muted); }
.snote__text strong { color: var(--text); }

.structure__media {
  margin: 0;
  min-width: 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  position: relative;
}
.structure__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85);
}
.structure__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 40px 22px 18px;
  font-size: 13.5px;
  color: var(--muted);
  background: linear-gradient(180deg, transparent, rgba(17, 17, 17, 0.92));
}

/* ---------- Стоимость ---------- */
.section--price {
  position: relative;
  background:
    radial-gradient(900px 420px at 85% 0%, rgba(111, 61, 194, 0.14), transparent 65%),
    var(--bg);
}
.tariffs {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 245px), 1fr));
  gap: 22px;
  margin-bottom: 34px;
}
.tariff {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 26px 26px;
  min-width: 0;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.tariff:hover {
  transform: translateY(-6px);
  border-color: rgba(111, 61, 194, 0.55);
  box-shadow: var(--shadow);
}
.tariff__name {
  font-size: 22px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.tariff__pages {
  font-size: 13.5px;
  color: var(--dim);
  margin: 6px 0 18px;
}
.tariff__price {
  font-size: clamp(28px, 3.2vw, 34px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.1;
  margin-bottom: 14px;
}
.tariff__price span {
  font-size: 15px;
  font-weight: 600;
  color: var(--dim);
}
.tariff__desc {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 24px;
  flex: 1;
}
.tariff__btn { width: 100%; padding: 13px 20px; font-size: 15px; }

.tariff--popular {
  background: linear-gradient(165deg, rgba(111, 61, 194, 0.28), var(--card) 60%);
  border-color: var(--accent);
  box-shadow: 0 18px 50px rgba(111, 61, 194, 0.22);
}
.tariff__badge {
  position: absolute;
  top: -13px;
  left: 22px;
  background: var(--accent);
  color: #fff;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 6px 14px;
  white-space: nowrap;
}
.tariff--premium .tariff__name { color: var(--accent-soft); }
.tariff--premium { border-color: rgba(111, 61, 194, 0.4); }

.price-includes {
  list-style: none;
  margin: 0;
  padding: 26px 28px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr));
  gap: 12px 28px;
}
.price-includes li {
  position: relative;
  padding-left: 26px;
  font-size: 14.5px;
  color: var(--muted);
}
.price-includes li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2.5px solid var(--accent-soft);
  border-bottom: 2.5px solid var(--accent-soft);
  transform: rotate(-45deg);
}

/* ---------- Детали ---------- */
.details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr));
  gap: 22px;
}
.detail {
  display: flex;
  gap: 22px;
  align-items: flex-start;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  min-width: 0;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.detail:hover {
  transform: translateY(-4px);
  border-color: rgba(111, 61, 194, 0.5);
}
.detail__num {
  flex: none;
  font-size: clamp(34px, 5vw, 44px);
  font-weight: 800;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent-soft);
}
.detail__title {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}
.detail__text { font-size: 14.5px; color: var(--dim); }

/* ---------- Финальный CTA ---------- */
.cta {
  position: relative;
  overflow: hidden;
  padding: 130px 0;
  text-align: center;
}
.cta__glow {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: min(760px, 100vw);
  height: 560px;
  background: radial-gradient(closest-side, rgba(111, 61, 194, 0.3), transparent 70%);
  pointer-events: none;
}
.cta__inner { position: relative; }
.cta__title {
  font-size: clamp(34px, 6.4vw, 64px);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.015em;
  margin-bottom: 18px;
}
.cta__text {
  color: var(--muted);
  max-width: 52ch;
  margin: 0 auto 36px;
  font-size: 16.5px;
}
.cta__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
}
.cta__contact { font-size: 14.5px; color: var(--dim); }
.cta__contact a {
  color: var(--accent-soft);
  font-weight: 700;
  text-decoration: none;
}
.cta__contact a:hover { text-decoration: underline; }

/* ---------- Футер ---------- */
.footer {
  border-top: 1px solid var(--line);
  padding: 40px 0;
}
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer__logo img { width: 180px; height: auto; }
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px 24px;
}
.footer__nav a {
  font-size: 14px;
  color: var(--dim);
  text-decoration: none;
  transition: color 0.2s ease;
}
.footer__nav a:hover { color: var(--accent-soft); }
.footer__note { font-size: 13px; color: var(--dim); }
.footer__note a { color: var(--muted); text-decoration: none; }
.footer__note a:hover { color: var(--accent-soft); }

/* ---------- Плавающий WhatsApp ---------- */
.wa-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 40;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c46d8, var(--accent));
  color: #fff;
  box-shadow: 0 12px 30px var(--accent-glow);
  transition: transform 0.25s ease, opacity 0.3s ease, visibility 0.3s;
  opacity: 0;
  visibility: hidden;
}
.wa-float.is-visible { opacity: 1; visibility: visible; }
.wa-float:hover { transform: scale(1.08); }

/* ---------- Scroll reveal ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22, 0.9, 0.3, 1);
}
.reveal[data-delay="1"] { transition-delay: 0.1s; }
.reveal[data-delay="2"] { transition-delay: 0.2s; }
.reveal[data-delay="3"] { transition-delay: 0.3s; }
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Мобильная навигация ---------- */
@media (max-width: 860px) {
  .burger { display: flex; }
  .header__nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(17, 17, 17, 0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 10px 20px 22px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s;
  }
  .header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .header__link {
    padding: 14px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line);
  }
  .header__cta { margin-top: 18px; padding: 14px 20px; font-size: 15px; }
  .header__logo img { width: 168px; }
}

/* ---------- Планшет и десктоп ---------- */
@media (min-width: 861px) {
  .header__cta { margin-left: 8px; }
  .wa-float { display: none; }
}

@media (min-width: 900px) {
  .structure {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 34px;
  }
  .structure__media { height: 100%; max-height: 620px; }
}

/* ---------- Мелкие экраны ---------- */
@media (max-width: 420px) {
  .section { padding: 72px 0; }
  .hero__actions { gap: 18px; }
  .btn--lg { width: 100%; padding: 16px 24px; }
  .hero__badge { border-left: none; padding-left: 0; }
  .detail { flex-direction: column; gap: 14px; }
  .snote { flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal,
  .reveal[data-delay="1"],
  .reveal[data-delay="2"],
  .reveal[data-delay="3"] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .btn, .work, .slide, .tariff, .scard, .detail, .wa-float, .work--cta__arrow {
    transition: none;
  }
  .hero__scroll span { animation: none; }
  .work:hover, .tariff:hover, .scard:hover, .detail:hover { transform: none; }
  .work:hover .slide { transform: none; }
}