:root {
  --color-bg: #f4f6fb;
  --color-card: #ffffff;
  --color-primary: #6366f1;
  --color-primary-hover: #4f46e5;
  --color-secondary: #ffcc00;
  --color-text: #1f2937;
  --color-text-light: #4b5563;
  --color-border: #e5e7eb;
  --radius: 0.5rem;
  --transition: 0.3s ease;
  --max-width: 1200px;
  --pricing-max-width: 500px;
}

/* === Общие стили === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  padding-bottom: 2rem;
  font-family: 'Inter', sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { max-width: var(--max-width); margin: 0 auto; padding: 1rem; }

.btn, .btn_head {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: background var(--transition);
  margin: 0.5rem; /* <-- добавляем отступ по вертикали и горизонтали */
}


.btn.secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn:hover { background: var(--color-primary-hover); }

/* === Хедер и навигация === */
header {
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}
/* === Логотип === */
.logo img {
  height: 48px; /* или любое нужное значение */
  width: auto;
  display: block;
}

.logo a {
  display: inline-block;
  transition: transform var(--transition);
}

.logo a:hover {
  transform: scale(1.05);
}

nav ul { display: flex; gap: 1.5rem; }
nav a { font-weight: 500; transition: color var(--transition); }
nav a:hover { color: var(--color-primary); }

/* базовое поведение */
.primary-nav { display: block; }

/* мобильный вид */
@media (max-width: 992px) {
  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    z-index: 1001;
  }

  .primary-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--color-card);
    border-bottom: 1px solid rgba(0,0,0,.06);
    padding: 12px 16px;
    z-index: 1000;
  }

  .primary-nav.open {
    display: block;
  }

  .primary-nav ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 0; padding: 0;
    list-style: none;
  }

  .primary-nav a {
    display: block;
    padding: 8px 6px;
  }

  a.btn_head {
    display: none;
  }
}

/* десктопный вид */
@media (min-width: 993px) {
  .menu-toggle { display: none; }
  .primary-nav {
    position: static;
    display: block;
    background: transparent;
    padding: 0;
  }
  .primary-nav ul {
    display: flex;
    flex-direction: row;
    gap: 16px;
  }
}

/* === Hero секция === */
.hero {
  background-image: url("../img/fon1.png");
  padding:2rem 1rem;
  text-align: center;
  border-radius: var(--radius);
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
  margin: 2rem 0;
}
.hero h1 {
  font-size: 2.75rem;
  font-weight: 700;
  margin-bottom: 1rem;
}
.hero p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 700px;
  margin: 0 auto 2rem;
}
@media (max-width: 768px) {
  .hero h1 { font-size: 2.25rem; }
  .hero p { font-size: 1rem; }
}

/* === Общие секции === */
section { padding: 4rem 0; }
section:nth-of-type(even) { background: var(--color-card); }
section h2 {
  font-size: 2.25rem;
  font-weight: 600;
  margin-bottom: 2rem;
  text-align: center;
}

/* === Сетки и карточки === */
.grid { display: grid; gap: 1.5rem; }
.features-grid { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

.pricing-grid {
  display: flex;
  justify-content: center;
  align-items: stretch;
  gap: 20px;
  flex-wrap: nowrap; /* всё в одну линию */
  max-width: 100%;
  overflow: hidden;
}


.card {
  background: var(--color-card);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
  transition: transform var(--transition);
}
.card:hover { transform: translateY(-5px); }
.card h3 { font-size: 1.5rem; margin-bottom: 0.75rem; }
.card p { color: var(--color-text-light); }

/* === Секция контактов === */
.contact .container { text-align: center; }

/* === Селект === */
select {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  color: var(--color-text);
  width: 100%;
  max-width: 400px;
  margin: 0 auto 1rem auto;
  display: block;
  appearance: none;
  background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='10'%3E%3Cpath fill='%234B5563' d='M7 10L0 0h14z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1em;
}


/* === Тарифы: одна строка на десктопе, перенос на мобилках === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr)); 
  gap: 20px;
}


.pricing-card {
  padding: clamp(1rem, 2.2vw, 2rem);
}
.pricing-card h3 {
  font-size: clamp(1.1rem, 1.6vw, 1.75rem);
}
.pricing-card .price {
  font-size: clamp(1.4rem, 2.2vw, 2.5rem);
}
.pricing-card .duration {
  font-size: clamp(0.9rem, 1.2vw, 1rem);
}

/* Перенос на мобильных */
@media (max-width: 992px) {
  .pricing-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)); /* 2 в ряд */
    gap: 16px;
  }
}
@media (max-width: 560px) {
  .pricing-grid {
    grid-template-columns: 1fr; /* 1 в ряд */
    gap: 12px;
  }
}


.pricing-card.popular { border: 2px solid var(--color-primary); }
.pricing-card .ribbon {
  position: absolute;
  top: -10px;
  right: -10px;
  background: var(--color-secondary);
  color: #fff;
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--radius);
}
.pricing-card h3 { font-size: 1.75rem; margin-bottom: 0.5rem; }
.pricing-card .price { font-size: 2.5rem; font-weight: 700; margin: 1rem 0; }
.pricing-card .duration { font-size: 1rem; color: var(--color-text-light); margin-bottom: 1rem; }

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  color: var(--color-text-light);
  text-align: left;
}
.pricing-card ul li {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
}
.pricing-card ul li::before {
  content: "\f00c";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  position: absolute;
  left: 0;
  top: 0.1rem;
  color: var(--color-primary);
}
.pricing-card .btn { margin-top: 1rem; width: 100%; }

/* === Центрирование блока загрузки === */
.center-block {
  text-align: center;
  margin-top: 3rem;
}
.center-block h2 { margin-bottom: 1rem; }
.center-block p { margin-bottom: 1.5rem; color: var(--color-text-light); }
.center-block .btn {
  display: inline-block;
  padding: 0.9rem 1.8rem;
  font-size: 1.1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius);
  transition: background var(--transition);
}
.center-block .btn:hover { background: var(--color-primary-hover); }

/* === Skip-link === */
.skip-link {
  position: absolute;
  left: 0;
  top: 0;
  transform: translateY(-150%);
  background: #000;
  color: #fff;
  padding: 8px 14px;
  border-radius: 6px;
  z-index: 1000;
  transition: transform .2s ease;
  text-decoration: none;
}
.skip-link:focus {
  transform: translateY(10px);
  outline: 2px solid #fff;
}
.skip-link {
  display: inline-block;
  width: auto;
  max-width: none;
}


/* === Поддержка предпочитающих минимум анимаций === */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

.primary-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.primary-nav li {
  position: relative;
}

.primary-nav .dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  border: 1px solid #ddd;
  min-width: 200px;
  z-index: 1000;
}

.primary-nav li:hover > .dropdown-menu {
  display: block;
}

.primary-nav .dropdown-menu li {
  width: 100%;
}

.primary-nav .dropdown-menu li a {
  display: block;
  padding: 10px;
  color: #333;
  text-decoration: none;
}

.primary-nav .dropdown-menu li a:hover {
  background: #f5f5f5;
}