/* Tolyq — публичный сайт. Собственный статический CSS, без сборщиков и внешних шрифтов.
   Системный стек шрифтов; мобильный первым (одна колонка до 720px). */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f2f6f3;
  --color-text: #17241d;
  --color-text-muted: #45524b;
  --color-accent: #0f5132;
  --color-accent-dark: #0a3a24;
  --color-border: #d7e2dc;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "Noto Sans", sans-serif;
  --max-text: 72ch;
  --max-grid: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
}

a {
  color: var(--color-accent);
}

a:hover,
a:focus {
  color: var(--color-accent-dark);
}

img {
  max-width: 100%;
  height: auto;
}

h1,
h2,
h3 {
  line-height: 1.25;
  color: var(--color-accent-dark);
}

h1 {
  font-size: 1.9rem;
  margin: 0.4em 0 0.5em;
}

h2 {
  font-size: 1.4rem;
  margin-top: 1.6em;
}

h3 {
  font-size: 1.15rem;
}

/* --- Шапка --- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.site-header__inner {
  max-width: var(--max-grid);
  margin: 0 auto;
  padding: 0.75rem 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-accent-dark);
}

.brand__logo {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.main-nav {
  width: 100%;
  order: 3;
}

.main-nav__list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
  font-size: 0.95rem;
}

.main-nav__list a {
  text-decoration: none;
  display: inline-block;
  padding: 0.25rem 0;
}

.main-nav__list a:hover,
.main-nav__list a:focus {
  text-decoration: underline;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.lang-switch a {
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.btn {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border-radius: 6px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid var(--color-accent);
  white-space: nowrap;
}

.btn--primary {
  background: var(--color-accent);
  color: #ffffff;
}

.btn--primary:hover,
.btn--primary:focus {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #ffffff;
}

.btn--secondary {
  background: transparent;
  color: var(--color-accent);
}

.btn--secondary:hover,
.btn--secondary:focus {
  background: var(--color-bg-alt);
}

@media (min-width: 720px) {
  .main-nav {
    width: auto;
    order: 2;
  }
}

/* --- Основной контент --- */

main {
  max-width: var(--max-grid);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
}

.lede {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: var(--max-text);
}

.prose {
  max-width: var(--max-text);
}

.prose h2 {
  scroll-margin-top: 1rem;
}

.prose ol,
.prose ul {
  padding-left: 1.4rem;
}

section {
  margin-top: 2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: var(--max-grid);
}

/* Одна колонка до 720px (мобильный первым, раздел 4 постановки задачи 16b); ширже — сетка. */
@media (min-width: 720px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 960px) {
  .card-grid--three {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  background: var(--color-bg-alt);
}

.card h3 {
  margin-top: 0;
}

.badge-soon {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-dark);
  background: #dcece2;
  border-radius: 999px;
  padding: 0.1rem 0.55rem;
  margin-left: 0.4rem;
  vertical-align: middle;
}

/* --- Таблица тарифов --- */

.pricing-table,
.data-table {
  width: 100%;
  max-width: var(--max-grid);
  border-collapse: collapse;
  margin: 1rem 0;
  font-size: 0.95rem;
}

.pricing-table caption,
.data-table caption {
  text-align: left;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.pricing-table th,
.pricing-table td,
.data-table th,
.data-table td {
  border: 1px solid var(--color-border);
  padding: 0.55rem 0.7rem;
  text-align: left;
  vertical-align: top;
}

.pricing-table thead th,
.data-table thead th {
  background: var(--color-bg-alt);
}

.pricing-table td.price {
  white-space: nowrap;
  font-weight: 600;
  text-align: right;
}

.examples-list {
  padding-left: 1.4rem;
}

/* --- Калькулятор --- */

.calculator {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1rem 1.1rem;
  max-width: var(--max-grid);
  background: var(--color-bg-alt);
}

.calculator__field {
  margin-bottom: 0.85rem;
}

.calculator__field label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.calculator__field input[type="number"],
.calculator__field select {
  font: inherit;
  padding: 0.35rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  background: #ffffff;
  color: var(--color-text);
  max-width: 12rem;
  width: 100%;
}

.calculator__checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.calculator__checkbox input {
  width: 1.1rem;
  height: 1.1rem;
}

.calculator__results {
  border-top: 1px solid var(--color-border);
  margin-top: 1rem;
  padding-top: 0.85rem;
}

.calculator__results p {
  font-size: 1.05rem;
  margin: 0.3rem 0;
}

.calculator__results output {
  font-weight: 700;
  color: var(--color-accent-dark);
}

/* --- Блок оплаты --- */

.pay-methods {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin: 0.75rem 0;
}

.pay-methods img {
  height: 28px;
  width: auto;
  border: 1px solid var(--color-border);
  border-radius: 4px;
}

.pay-methods a {
  display: inline-flex;
  align-items: center;
}

/* --- Владелец-маркеры --- */

.owner-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* --- Оглавление --- */

.toc {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.75rem 1rem 0.75rem 1.6rem;
  background: var(--color-bg-alt);
  max-width: var(--max-text);
}

.toc li {
  margin: 0.15rem 0;
}

.doc-meta {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

/* --- Футер --- */

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  margin-top: 3rem;
}

.site-footer__inner {
  max-width: var(--max-grid);
  margin: 0 auto;
  padding: 1.5rem 1rem 2rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

@media (min-width: 720px) {
  .site-footer__inner {
    grid-template-columns: repeat(3, 1fr);
  }
}

.site-footer h2 {
  font-size: 0.95rem;
  color: var(--color-text);
  margin: 0 0 0.4rem;
}

.site-footer address {
  font-style: normal;
}

.site-footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.site-footer li {
  margin: 0.2rem 0;
}

.site-footer__bottom {
  max-width: var(--max-grid);
  margin: 0 auto;
  padding: 0.75rem 1rem 1.5rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}