/* =========================================================
   ЕСЛИ ОТКЛЮЧАТ — styles.css
   Полностью локальные стили. Без внешних шрифтов и ресурсов.
   ========================================================= */

/* ---------- Переменные темы ---------- */
:root {
  --bg:           #f4f6f8;
  --bg-alt:       #ffffff;
  --surface:      #ffffff;
  --text:         #1f2a37;
  --text-soft:    #4b5563;
  --text-mute:    #6b7280;
  --border:       #e5e9ee;
  --primary:      #1f6f8b;   /* спокойный сине-зелёный */
  --primary-dark: #155a72;
  --accent:       #2f9e8f;
  --shadow:       0 1px 2px rgba(16, 32, 48, .04),
                  0 8px 24px rgba(16, 32, 48, .06);
  --radius:       14px;
  --maxw:         1120px;
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  line-height: 1.2;
  margin: 0 0 .5em;
  font-weight: 700;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1em; }

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---------- Контейнер ---------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Шапка ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .85);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  font-weight: 800;
  letter-spacing: .04em;
  font-size: 16px;
  color: var(--text);
}
.main-nav { display: flex; gap: 24px; flex-wrap: wrap; }
.main-nav a {
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 500;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a.active {
  color: var(--primary);
  font-weight: 700;
}

/* Подзаголовок-абзац с акцентной полосой слева (для текстовых блоков) */
.lead-block {
  font-size: 19px;
  color: var(--text-soft);
  max-width: 720px;
  margin: 0 0 36px;
  padding-left: 18px;
  border-left: 3px solid var(--accent);
}

/* Карточка профиля (для блока «Об авторе») */
.profile {
  display: flex;
  gap: 28px;
  align-items: flex-start;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}
.profile-avatar {
  flex: 0 0 84px;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: .02em;
}
.profile-body h3 { font-size: 22px; margin-bottom: 4px; }
.profile-role {
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  margin: 0 0 14px;
}
.profile-body p { color: var(--text-soft); margin: 0 0 .7em; }

/* CTA-блок в конце страницы */
.cta {
  text-align: center;
  background: linear-gradient(135deg, #1f6f8b, #2f9e8f);
  color: #fff;
  border: none;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, .9); }
.cta .btn-primary {
  background: #fff;
  color: var(--primary-dark);
}
.cta .btn-primary:hover { background: #f0f4f6; }

@media (max-width: 560px) {
  .profile { flex-direction: column; align-items: center; text-align: center; }
  .profile-avatar { margin-bottom: 4px; }
}

/* ---------- Главный экран ---------- */
.hero {
  position: relative;
  padding: 96px 0 88px;
  background:
    radial-gradient(1100px 460px at 80% -10%, rgba(47, 158, 143, .12), transparent 60%),
    radial-gradient(900px 500px at 0% 0%, rgba(31, 111, 139, .12), transparent 55%),
    linear-gradient(180deg, #fbfcfd 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 760px; }
.hero-eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: .18em;
  font-size: 12px;
  font-weight: 700;
  color: var(--primary);
  background: rgba(31, 111, 139, .08);
  padding: 6px 12px;
  border-radius: 999px;
  margin: 0 0 20px;
}
.hero-title {
  font-size: clamp(40px, 7vw, 72px);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
  color: var(--text);
}
.hero-subtitle {
  font-size: clamp(20px, 3vw, 28px);
  color: var(--primary-dark);
  font-weight: 600;
  margin-bottom: 22px;
}
.hero-lead {
  font-size: 18px;
  color: var(--text-soft);
  max-width: 620px;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-block;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--surface); color: var(--primary-dark); }

/* ---------- Секции ---------- */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--border); }

.section-head { max-width: 720px; margin-bottom: 44px; }
.section-tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--accent);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 38px);
}
.section-intro {
  color: var(--text-soft);
  font-size: 17px;
}

/* ---------- Сетка карточек ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  transition: transform .12s ease, box-shadow .12s ease;
}
.card:hover { transform: translateY(-2px); }
.card h3 {
  font-size: 18px;
  margin-bottom: 8px;
}
.card p { color: var(--text-soft); margin: 0; font-size: 15.5px; }
.card.check { position: relative; padding-left: 28px; }
.card.check::before {
  content: "";
  position: absolute;
  left: 24px; top: 26px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ---------- Нумерованные шаги ---------- */
.steps {
  list-style: none;
  counter-reset: step;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.steps li {
  counter-increment: step;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 24px 24px 64px;
  position: relative;
  box-shadow: var(--shadow);
}
.steps li::before {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 22px; top: 24px;
  font-size: 15px;
  font-weight: 800;
  color: var(--primary);
  background: rgba(31, 111, 139, .1);
  border-radius: 8px;
  padding: 4px 8px;
}
.steps h3 { font-size: 17px; margin-bottom: 6px; }
.steps p { color: var(--text-soft); margin: 0; font-size: 15.5px; }

/* Простой нумерованный список (блок «Сегодня») */
ol.steps.today {
  display: block;
  counter-reset: td;
}
ol.steps.today li {
  counter-increment: td;
  padding: 18px 18px 18px 60px;
  margin-bottom: 12px;
}
ol.steps.today li::before { content: counter(td); }

/* ---------- О проекте ---------- */
.about { text-align: center; }
.about-inner { max-width: 760px; margin: 0 auto; }
.about h2 {
  font-size: clamp(28px, 4vw, 38px);
  margin-bottom: 20px;
}
.about p {
  color: var(--text-soft);
  font-size: 17px;
  margin-bottom: 1em;
}
.about p:last-child { margin-bottom: 0; }

/* ---------- Чек-лист ---------- */
.note {
  font-size: 14px;
  color: var(--text-mute);
  background: rgba(47, 158, 143, .07);
  border-left: 3px solid var(--accent);
  padding: 12px 16px;
  border-radius: 8px;
  margin: 0 auto 32px;
  max-width: 760px;
}

.progress-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.progress-info { flex: 1 1 260px; min-width: 220px; }
.progress-info h3 { margin-bottom: 10px; font-size: 18px; }
.progress-track {
  height: 12px;
  background: #e8edf1;
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 999px;
  transition: width .35s ease;
}
.progress-stats { color: var(--text-mute); font-size: 14px; margin-top: 10px; }
.progress-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.btn-reset {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-soft);
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-reset:hover {
  background: var(--surface);
  color: var(--primary);
  border-color: var(--primary);
}

/* Счётчик в заголовке секции */
.count {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(31, 111, 139, .1);
  padding: 2px 10px;
  border-radius: 999px;
  margin-left: 10px;
  vertical-align: middle;
}

/* Сетка пунктов */
.check-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 12px;
}
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  user-select: none;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.check-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
}
.check-item input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border: 2px solid #c9d2da;
  border-radius: 6px;
  flex: 0 0 22px;
  margin: 1px 0 0;
  cursor: pointer;
  position: relative;
  background: #fff;
  transition: background .15s ease, border-color .15s ease;
}
.check-item input:checked {
  background: var(--accent);
  border-color: var(--accent);
}
.check-item input:checked::after {
  content: "";
  position: absolute;
  left: 6px; top: 2px;
  width: 5px; height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.check-label { font-size: 15px; color: var(--text); line-height: 1.45; }
.check-item.done { background: #f7faf9; opacity: .72; }
.check-item.done .check-label { text-decoration: line-through; color: var(--text-mute); }

@media (max-width: 560px) {
  .progress-card { padding: 22px; }
}

/* ---------- Заключение ---------- */
.conclusion { text-align: center; }
.conclusion-inner { max-width: 760px; margin: 0 auto; }
.conclusion h2 {
  font-size: clamp(28px, 4vw, 38px);
  margin-bottom: 16px;
}
.conclusion p { color: var(--text-soft); font-size: 17px; }
.final-phrase {
  margin-top: 24px;
  font-size: clamp(20px, 3vw, 26px);
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.35;
}

/* ---------- Подвал ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg);
  padding: 28px 0;
  color: var(--text-mute);
  font-size: 14px;
}
.site-footer p { margin: 0; }

/* ---------- Адаптивность ---------- */
@media (max-width: 720px) {
  .hero { padding: 72px 0 64px; }
  .section { padding: 64px 0; }
  .main-nav { display: none; }
}

/* ---------- Плавный фокус для доступности ---------- */
:focus-visible {
  outline: 3px solid rgba(31, 111, 139, .4);
  outline-offset: 2px;
  border-radius: 4px;
}