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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background-color: #05070b;
  color: #f6f7ff;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  padding: 0 20px;
  margin: 0 auto;
}

.section-heading {
  font-size: 32px;
  margin-bottom: 32px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* Кнопки */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 13px;
}

.btn--primary {
  background: radial-gradient(circle at top left, #ff6b2c 0, #ff256e 30%, #5a5dff 70%);
  box-shadow: 0 0 25px rgba(149, 76, 255, 0.45);
  color: #fff;
}

.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 35px rgba(149, 76, 255, 0.7);
}

.btn--outline {
  border-color: rgba(149, 76, 255, 0.7);
  color: #f6f7ff;
  background: transparent;
}

.btn--outline:hover {
  background: rgba(149, 76, 255, 0.15);
}

/* Хедер */

.header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 1000;
  transition:
    background 0.3s ease,
    backdrop-filter 0.3s ease,
    box-shadow 0.3s ease,
    border-color 0.3s ease;
}

.header--transparent {
  background: transparent;
  backdrop-filter: none;
  box-shadow: none;
}

.header--solid {
  background: #05070b;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.7);
}

.header--glass {
  background: rgba(5, 7, 11, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.7);
  border-bottom: 1px solid rgba(149, 76, 255, 0.4);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}

/* Логотип */

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.logo__mark {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #ff6b2c, #5a5dff);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}

.logo__text {
  font-weight: 600;
  letter-spacing: 0.15em;
  font-size: 12px;
  text-transform: uppercase;
}

/* Навигация */

.nav {
  display: flex;
  gap: 24px;
}

.nav__link {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  position: relative;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #ff6b2c, #5a5dff);
  transition: width 0.25s ease;
}

.nav__link:hover::after {
  width: 100%;
}

/* Контакты справа (десктоп) */

.header__contacts {
  display: flex;
  align-items: center;
  gap: 20px;
}

.phones {
  display: flex;
  flex-direction: column;
  font-size: 13px;
}

.phones__item {
  opacity: 0.85;
}

.phones__item:hover {
  opacity: 1;
}

/* Мессенджеры */

.messengers {
  display: flex;
  gap: 10px;
}

/* базовая форма круга + неоновое кольцо */
.messengers__icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(149, 76, 255, 0.7);
  position: relative;
  overflow: hidden;
}

/* неоновый фон внутри */
.messengers__icon::before {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: inherit;
  background: radial-gradient(circle at 30% 20%, #ff6b2c, #5a5dff);
  opacity: 0.7;
}

/* сама иконка (SVG) */
.messengers__icon::after {
  content: "";
  position: absolute;
  inset: 0;
  background-position: center;
  background-repeat: no-repeat;
  background-size: 60%;
}


/* Подключаем конкретные SVG-иконки */
.messengers__icon--wa::after {
  background-image: url("whatsapp-sign-logo.svg");
}

.messengers__icon--tg::after {
  background-image: url("telegram-logo.svg");
}

.messengers__icon--vb::after {
  background-image: url("max.svg");
}

.messengers__icon:hover::before {
  opacity: 1;
}

/* Мобильный блок мессенджеров (в центре хедера) */

.header__messengers-mobile {
  display: none;        /* по умолчанию скрыт, покажем на мобиле */
  align-items: center;
  gap: 10px;
}

/* Бургер */

.header__menu-btn {
  display: none;
  background: none;
  border: none;
  padding: 4px;
  flex-direction: column;
  gap: 4px;
}

.header__menu-btn span {
  width: 22px;
  height: 2px;
  background: #fff;
  display: block;
}

/* Адаптивка под мобильный */

@media (max-width: 768px) {
  /* чуть больше воздуха у хедера по краям */
  .header__inner {
    padding-block: 10px;
    padding-inline: 12px;
  }

  /* Навигация превращается в выпадающее меню */
  .nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    background: rgba(5, 7, 11, 0.96);
    flex-direction: column;
    align-items: center;
    padding: 18px 0;
    gap: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  /* Скрываем блок с телефонами и десктопными иконками */
  .header__contacts {
    display: none;
  }

  /* Показываем мобильный блок мессенджеров между логотипом и бургером */
  .header__messengers-mobile {
    display: flex;
    margin-left: auto;
    margin-right: 8px;
  }

  /* Включаем бургер */
  .header__menu-btn {
    display: inline-flex;
  }
}


/* Hero */

.hero {
  position: relative;
  height: 100vh;
  min-height: 540px;
  color: #fff;
  overflow: hidden;
}

/* видео на фоне */
.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* градиентная затемняющая подложка */
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(149, 76, 255, 0.7), transparent 55%),
    radial-gradient(circle at bottom right, rgba(255, 107, 44, 0.7), transparent 55%),
    rgba(5, 7, 11, 0.85);
}

/* обёртка для центрирования контента */
.hero__content {
  position: relative;
  z-index: 1;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  text-align: center;
}

/* блок по центру */
.hero__center {
  max-width: 780px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* контейнер для меняющихся фраз */
.hero__taglines {
  position: relative;
  min-height: 90px; /* чтобы блок не прыгал по высоте */
  margin-bottom: 32px;
}

/* обычные слоганы – базовый (desktop ≥ 1024px) */
.hero__tagline {
  position: absolute;
  left: 50%;
  top: 0;
  transform: translate(-50%, 10px);
  opacity: 0;
  transition:
    opacity 0.8s ease,
    transform 0.8s ease;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-shadow: 0 0 28px rgba(15, 23, 42, 0.9);
  white-space: normal;
}

/* финальный слоган — сразу большой */
.hero__tagline--final {
  font-size: 72px;
  line-height: 1.05;
  max-width: 90vw;
}

/* активный слоган — видим и чуть приподнят */
.hero__tagline.is-active {
  opacity: 1;
  transform: translate(-50%, 0);
}

/* кнопка под текстом */
.hero__btn {
  margin-top: 8px;
}

/* Tablet: 768–1023px – немного меньше */
@media (max-width: 1024px) {
  .hero__tagline {
    font-size: 34px;
    letter-spacing: 0.07em;
  }

  .hero__tagline--final {
    font-size: 54px;
  }
}

/* Mobile: < 768px */
@media (max-width: 768px) {
  .hero__taglines {
    min-height: 60vh; /* чтобы финальный реально занимал экран */
  }

  .hero__tagline {
    font-size: 28px;
    letter-spacing: 0.06em;
    line-height: 1.25;
  }

  .hero__tagline--final {
    font-size: 38px;
  }

  .hero__content {
    padding: 0 16px;
  }
}




/* Услуги */

.services {
  padding: 100px 0 80px;
}

.services__items {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

/* общий вид «шахматки» */
.service {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  align-items: center;
}

.service__text {
  font-size: 15px;
}

.service__heading {
  font-size: 22px;
  margin: 0 0 14px;
}

.service__list {
  list-style: none;
  padding: 0;
  margin: 14px 0 0;
}

.service__list li {
  margin-bottom: 6px;
  position: relative;
  padding-left: 20px;
}

.service__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #ff6b2c, #5a5dff);
}

/* картинка */
.service__image {
  border-radius: 18px;
  overflow: hidden;
  position: relative;
}

.service__image::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(90, 93, 255, 0.35), transparent 60%),
    radial-gradient(circle at bottom right, rgba(255, 37, 110, 0.3), transparent 60%);
  mix-blend-mode: screen;
  pointer-events: none;
}

.service__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Адаптив под планшет/мобилу */

@media (max-width: 992px) {
  .services {
    padding: 80px 0 70px;
  }
}

@media (max-width: 768px) {
  .services {
    padding-top: 70px;
  }

  .service {
    grid-template-columns: 1fr; /* одна колонка */
    gap: 24px;
  }

  /* на мобиле всегда порядок: текст → картинка */
  .service__text {
    order: 1;
  }

  .service__image {
    order: 2;
  }
}


/* Кейсы */

.cases {
  padding: 80px 0;
}

.cases__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
}

.case-card {
  background: radial-gradient(circle at top left, rgba(149, 76, 255, 0.23), rgba(10, 12, 20, 0.98));
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(149, 76, 255, 0.3);
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.case-card__image {
  width: 100%;
  height: 170px;
  object-fit: cover;
}

.case-card__body {
  padding: 18px 18px 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.case-card__title {
  font-size: 17px;
  margin: 0;
}

.case-card__preview {
  font-size: 14px;
  color: rgba(241, 242, 255, 0.78);
  flex: 1;
}

.case-card__btn {
  align-self: flex-start;
}

/* Как работаем */

.process {
  padding: 80px 0;
}

.process__steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
}

.process__step {
  background: radial-gradient(circle at top left, rgba(149, 76, 255, 0.18), rgba(10, 12, 20, 0.9));
  border-radius: 16px;
  padding: 18px 18px 20px;
  border: 1px solid rgba(149, 76, 255, 0.3);
}

.process__num {
  font-size: 14px;
  opacity: 0.7;
}

.process__title {
  margin: 4px 0 8px;
  font-size: 16px;
}

/* Контакты */

.contacts {
  padding: 80px 0 100px;
}

.contacts__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.2fr);
  gap: 50px;
  align-items: flex-start;
}

.contacts__info p {
  max-width: 420px;
}

.contacts__list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  font-size: 14px;
}

.contacts__list li {
  margin-bottom: 8px;
}

.contacts__form {
  background: radial-gradient(circle at top left, rgba(149, 76, 255, 0.25), rgba(10, 12, 20, 0.95));
  border-radius: 18px;
  padding: 22px 22px 24px;
  border: 1px solid rgba(149, 76, 255, 0.3);
  display: grid;
  gap: 14px;
}

.form__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
}

.form__field input,
.form__field select,
.form__field textarea {
  background: rgba(5, 7, 11, 0.9);
  border-radius: 999px;
  border: 1px solid rgba(149, 76, 255, 0.4);
  padding: 10px 14px;
  color: #fff;
  font: inherit;
}

.form__field textarea {
  border-radius: 12px;
  resize: vertical;
}

.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
  outline: none;
  border-color: #ff6b2c;
}

.form__checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  opacity: 0.8;
}

.form__checkbox input {
  width: 16px;
  height: 16px;
}

/* Попап кейса */

.case-modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 1500;
}

.case-modal.is-open {
  display: block;
}

.case-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(1, 2, 5, 0.85);
}

.case-modal__content {
  position: relative;
  max-width: 720px;
  margin: 60px auto;
  background: radial-gradient(circle at top left, rgba(149, 76, 255, 0.4), rgba(10, 12, 20, 0.98));
  border-radius: 20px;
  padding: 30px 26px 26px;
  border: 1px solid rgba(149, 76, 255, 0.6);
  color: #f6f7ff;
}

.case-modal__close {
  position: absolute;
  top: 10px;
  right: 12px;
  background: none;
  border: none;
  color: #fff;
  font-size: 26px;
  cursor: pointer;
}

.case-modal__gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 18px 0 20px;
}

/* Адаптив */

@media (max-width: 992px) {
  .services__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .services__titles {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 20px;
  }

  .services__title {
    font-size: 14px;
  }

  .cases__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process__steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .contacts__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .header__contacts {
    display: none;
  }

  .nav {
    position: fixed;
    inset-inline: 0;
    top: 60px;
    background: rgba(5, 7, 11, 0.96);
    flex-direction: column;
    align-items: center;
    padding: 18px 0;
    gap: 16px;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  .nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .header__menu-btn {
    display: inline-flex;
  }

  .hero__logo {
    font-size: 28px;
  }

  .services {
    padding-top: 70px;
  }

  .service {
    grid-template-columns: 1fr;
  }

  /* Мобильная логика: строго заголовок → текст → картинка */
  .service__image {
    order: 3;
  }

  .service__text {
    order: 2;
  }

  .cases__grid {
    grid-template-columns: 1fr;
  }

  .process__steps {
    grid-template-columns: 1fr;
  }

  .case-modal__content {
    margin: 40px 14px;
    padding: 24px 18px 20px;
  }

  .case-modal__gallery {
    grid-template-columns: 1fr;
  }
}

.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 12px;
  opacity: 0.9;
  line-height: 1.5;
}

.form__checkbox input {
  width: 16px;
  height: 16px;
  margin-top: 2px;
  flex: 0 0 16px;
  accent-color: #ff6b2c;
}

.form__checkbox a {
  color: #fff;
  text-decoration: underline;
}

.form__checkbox a:hover {
  opacity: 0.85;
}

.contacts__policy-link {
  margin-top: 14px;
  font-size: 13px;
  opacity: 0.85;
}

.contacts__policy-link a {
  text-decoration: underline;
}

.contacts__policy-link a:hover {
  opacity: 1;
}