/* ----------------------------------------------------------
 * Цвета и токены — синхронизированы с Patient App
 * (packages/shared-config/src/ui/colors.ts, sizes.ts).
 * Менять их здесь и там одновременно.
 * ----------------------------------------------------------- */
:root {
  --c-bg: #ffffff;
  --c-text-primary: #0a0a0a;
  --c-text-secondary: #404040;
  --c-primary: #0b5fff;
  --c-primary-pressed: #003fb3;
  --c-success: #1b7f3b;
  --c-danger: #b3261e;
  --c-warning-bg: #fff4e5;
  --c-warning-border: #9c5800;
  --c-divider: #e5e5e5;
  --c-surface-soft: #f7f8fa;

  --r-card: 16px;
  --touch-min: 64px;
  --primary-button-h: 72px;

  --pad-page: 16px;
  --pad-section: 40px;
}

/* ----------------------------------------------------------
 * Базовые сбросы
 * ----------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen-Sans, Ubuntu,
    Cantarell, 'Helvetica Neue', sans-serif;
  font-size: 18px;
  line-height: 1.5;
  color: var(--c-text-primary);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

ul,
ol {
  list-style: none;
}

/* ----------------------------------------------------------
 * Контейнер страницы — mobile-first, max-width для десктопа
 * ----------------------------------------------------------- */
.page {
  max-width: 640px;
  margin: 0 auto;
  padding: var(--pad-page) var(--pad-page) 48px;
}

.section-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--c-text-primary);
}

/* ----------------------------------------------------------
 * In-app browser warning
 * ----------------------------------------------------------- */
.warning {
  background: var(--c-warning-bg);
  border-left: 4px solid var(--c-warning-border);
  padding: 12px 16px;
  margin: 0 0 16px;
  font-size: 16px;
  color: var(--c-text-primary);
}

.warning strong {
  color: var(--c-warning-border);
}

/* ----------------------------------------------------------
 * HERO
 * ----------------------------------------------------------- */
.hero {
  padding: 24px 0 var(--pad-section);
  text-align: left;
}

.hero__brand {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--c-primary);
  text-transform: uppercase;
  margin-bottom: 8px;
}

.hero__title {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 16px;
}

.hero__lead {
  font-size: 18px;
  color: var(--c-text-secondary);
  margin-bottom: 24px;
}

.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: var(--primary-button-h);
  padding: 14px 20px;
  background: var(--c-primary);
  color: #ffffff;
  border-radius: var(--r-card);
  text-decoration: none;
  font-weight: 700;
  transition: background-color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
  box-shadow: 0 2px 8px rgba(11, 95, 255, 0.18);
}

.cta:hover,
.cta:active,
.cta:focus {
  background: var(--c-primary-pressed);
  outline: none;
}

.cta__main {
  font-size: 24px;
  line-height: 1.1;
}

.cta__sub {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-top: 4px;
  opacity: 0.9;
}

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

.hero__disclaimer {
  display: block;
  margin-top: 4px;
  font-style: italic;
}

/* ----------------------------------------------------------
 * Features (что приложение умеет)
 * ----------------------------------------------------------- */
.features {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
}

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

.feature {
  padding: 16px;
  background: var(--c-surface-soft);
  border-radius: var(--r-card);
}

.feature__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
}

.feature__text {
  font-size: 16px;
  color: var(--c-text-secondary);
  line-height: 1.5;
}

/* ----------------------------------------------------------
 * Audience (для кого)
 * ----------------------------------------------------------- */
.audience {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
}

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

.audience__card {
  padding: 20px;
  background: #ffffff;
  border: 1px solid var(--c-divider);
  border-radius: var(--r-card);
}

.audience__card-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--c-primary);
}

.audience__card-text {
  font-size: 16px;
  color: var(--c-text-secondary);
  line-height: 1.5;
}

/* ----------------------------------------------------------
 * Шаги установки
 * ----------------------------------------------------------- */
.steps {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
}

.steps__list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px;
  background: var(--c-surface-soft);
  border-radius: var(--r-card);
}

.step__num {
  flex: 0 0 auto;
  width: 40px;
  height: 40px;
  background: var(--c-primary);
  color: #ffffff;
  font-size: 20px;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step__body {
  flex: 1;
  min-width: 0;
}

.step__title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.step__text {
  font-size: 16px;
  color: var(--c-text-secondary);
  line-height: 1.5;
}

.step__text strong {
  color: var(--c-text-primary);
}

/* ----------------------------------------------------------
 * Приватность
 * ----------------------------------------------------------- */
.privacy {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
}

.privacy__text {
  font-size: 16px;
  color: var(--c-text-secondary);
  line-height: 1.6;
}

.privacy__text strong {
  color: var(--c-text-primary);
}

/* ----------------------------------------------------------
 * QR-код
 * ----------------------------------------------------------- */
.qr {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
  text-align: center;
}

.qr__hint {
  font-size: 16px;
  color: var(--c-text-secondary);
  margin-bottom: 16px;
}

.qr__box {
  display: inline-block;
  padding: 12px;
  background: #ffffff;
  border: 1px solid var(--c-divider);
  border-radius: var(--r-card);
}

.qr__img {
  display: block;
  width: 220px;
  height: 220px;
  background: var(--c-surface-soft);
}

/* ----------------------------------------------------------
 * Changelog
 * ----------------------------------------------------------- */
.changelog {
  padding: var(--pad-section) 0;
  border-top: 1px solid var(--c-divider);
}

.changelog summary {
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  list-style: none;
  padding: 8px 0;
}

.changelog summary::-webkit-details-marker {
  display: none;
}

.changelog summary::after {
  content: '▾';
  margin-left: 8px;
  color: var(--c-text-secondary);
}

.changelog__body {
  margin-top: 12px;
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text-secondary);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* ----------------------------------------------------------
 * Футер
 * ----------------------------------------------------------- */
.footer {
  padding: var(--pad-section) 0 0;
  border-top: 1px solid var(--c-divider);
  font-size: 14px;
  color: var(--c-text-secondary);
}

.footer__text + .footer__text {
  margin-top: 12px;
}

.footer__text strong {
  color: var(--c-text-primary);
}

/* ----------------------------------------------------------
 * Disabled-состояние кнопки
 * ----------------------------------------------------------- */
.cta[aria-disabled='true'] {
  background: var(--c-divider);
  color: var(--c-text-secondary);
  cursor: not-allowed;
  box-shadow: none;
}

/* ----------------------------------------------------------
 * Адаптив для широких экранов
 * ----------------------------------------------------------- */
@media (min-width: 720px) {
  body {
    font-size: 17px;
  }
  .hero__title {
    font-size: 42px;
  }
  .cta__main {
    font-size: 26px;
  }
  .audience__cards {
    grid-template-columns: 1fr 1fr;
  }
}