/* ==========================================================================
   Светлый минимализм — персональный лэндинг
   ========================================================================== */

:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f9;
  --text: #16181d;
  --text-soft: #5d6470;
  --accent: #4f46e5;
  --accent-soft: #eef0ff;
  --border: #e8e9ee;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(22, 24, 29, 0.06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

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

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

/* ==========================================================================
   Кнопки
   ========================================================================== */

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.25);
}

.btn--primary:hover {
  background: #4338ca;
  transform: translateY(-2px);
}

.btn--ghost {
  border-color: var(--border);
  background: var(--bg);
  color: var(--text);
}

.btn--ghost:hover {
  border-color: var(--text);
}

.btn--small {
  padding: 10px 18px;
  font-size: 14px;
}

/* ==========================================================================
   Шапка
   ========================================================================== */

.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 8px rgba(22, 24, 29, 0.04);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: 68px;
}

.logo {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo__dot {
  color: var(--accent);
}

.nav {
  display: flex;
  gap: 28px;
}

.nav__link {
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.nav__link:hover {
  color: var(--accent);
}

.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}

.burger span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s 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);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 96px 0 72px;
  background:
    radial-gradient(600px 300px at 80% -10%, rgba(79, 70, 229, 0.08), transparent),
    var(--bg);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 56px;
  align-items: center;
}

.hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__logo {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1;
  white-space: nowrap;
  color: var(--text);
}

.hero__tag {
  display: inline-block;
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: var(--accent-soft);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero__title {
  font-size: clamp(40px, 6vw, 64px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.08;
  max-width: 720px;
  margin-bottom: 20px;
}

.hero__subtitle {
  font-size: 19px;
  color: var(--text-soft);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero__actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero__stats {
  list-style: none;
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.hero__stats li {
  display: flex;
  flex-direction: column;
}

.hero__stats strong {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.hero__stats span {
  color: var(--text-soft);
  font-size: 14px;
}

/* ==========================================================================
   Секции
   ========================================================================== */

.section {
  padding: 88px 0;
}

.section--alt {
  background: var(--bg-soft);
}

.section__head {
  margin-bottom: 48px;
}

.section__label {
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section__title {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

/* Сетки */

.grid {
  display: grid;
  gap: 24px;
}

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

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Карточки */

.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card__icon {
  font-size: 28px;
  margin-bottom: 18px;
}

.card__title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.card__text {
  color: var(--text-soft);
  font-size: 15px;
  margin-bottom: 18px;
}

.card__list {
  list-style: none;
  display: grid;
  gap: 8px;
}

.card__list li {
  position: relative;
  padding-left: 22px;
  font-size: 14px;
  color: var(--text-soft);
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* Обо мне */

.about__inner {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: center;
}

.about__avatar {
  aspect-ratio: 1 / 1;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--accent-soft), var(--bg-soft));
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  color: var(--text-soft);
  font-size: 18px;
  font-weight: 600;
  overflow: hidden;
}

.about__avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 50%;
}

.about__content p {
  color: var(--text-soft);
  margin-bottom: 18px;
  font-size: 17px;
}

.about__content .section__title {
  margin-bottom: 24px;
}

.about__content .btn {
  margin-top: 8px;
}

/* Шаги */

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.step__num {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.step h3 {
  font-size: 18px;
  margin-bottom: 8px;
}

.step p {
  color: var(--text-soft);
  font-size: 14px;
}

/* Контакты */

.contact__card {
  max-width: 760px;
  margin: 0 auto;
  text-align: center;
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 56px 48px;
}

.contact__text {
  color: var(--text-soft);
  margin: 12px 0 28px;
}

.contact__links {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.contact__link {
  color: var(--accent);
  font-weight: 600;
}

.contact__link:hover {
  text-decoration: underline;
}

/* Форма */

.form {
  text-align: left;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form input,
.form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  font-family: inherit;
  font-size: 15px;
  background: var(--bg);
  color: var(--text);
  margin-bottom: 16px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form input:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
}

.form textarea {
  resize: vertical;
}

.form__submit {
  width: 100%;
}

.form__note {
  margin-top: 12px;
  font-size: 14px;
  color: var(--accent);
  text-align: center;
}

/* ==========================================================================
   Футер
   ========================================================================== */

.footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__copy {
  color: var(--text-soft);
  font-size: 14px;
}

.footer__top {
  color: var(--text-soft);
  font-size: 14px;
}

.footer__top:hover {
  color: var(--accent);
}

/* ==========================================================================
   Анимация появления
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   Адаптив
   ========================================================================== */

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero__visual {
    display: none;
  }

  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .about__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about__avatar {
    max-width: 320px;
  }

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

@media (max-width: 640px) {
  .hero {
    padding: 64px 0 48px;
  }

  .section {
    padding: 64px 0;
  }

  .header__cta {
    display: none;
  }

  .nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    flex-direction: column;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 8px 20px rgba(22, 24, 29, 0.08);
    padding: 16px 24px 24px;
    gap: 4px;
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .nav.is-open {
    transform: none;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav__link {
    padding: 12px 0;
    font-size: 17px;
  }

  .burger {
    display: flex;
  }

  .hero__stats {
    gap: 28px;
  }

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

  .contact__card {
    padding: 40px 24px;
  }

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

  .footer__inner {
    justify-content: center;
    text-align: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}