/* ===== ПЕРЕМЕННЫЕ И БАЗА ===== */
:root {
  --c-primary: #1f7a8c;
  --c-primary-dark: #155e6d;
  --c-accent: #4ecdc4;
  --c-ink: #0f2b33;
  --c-muted: #5b7178;
  --c-bg: #ffffff;
  --c-bg-soft: #f2f8f9;
  --c-line: #e2edee;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 10px 30px rgba(15, 43, 51, 0.08);
  --shadow-lg: 0 20px 50px rgba(15, 43, 51, 0.14);
  --container: 1160px;
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }

.skip-link {
  position: absolute; left: -9999px; top: 0; background: var(--c-primary);
  color: #fff; padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

h1, h2, h3, h4 { line-height: 1.2; font-weight: 800; letter-spacing: -0.01em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.15rem; }
.accent { color: var(--c-primary); }

/* ===== КНОПКИ ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px; font-family: inherit; font-weight: 700; font-size: 0.95rem;
  padding: 12px 24px; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .15s ease, box-shadow .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--c-primary); color: #fff; box-shadow: 0 8px 20px rgba(31,122,140,.28); }
.btn--primary:hover { background: var(--c-primary-dark); box-shadow: 0 12px 26px rgba(31,122,140,.36); transform: translateY(-2px); }
.btn--outline { border-color: var(--c-primary); color: var(--c-primary); background: transparent; }
.btn--outline:hover { background: var(--c-primary); color: #fff; transform: translateY(-2px); }
.btn--ghost { border-color: var(--c-line); color: var(--c-ink); background: #fff; }
.btn--ghost:hover { border-color: var(--c-primary); color: var(--c-primary); transform: translateY(-2px); }
.btn--lg { padding: 16px 32px; font-size: 1rem; }

/* ===== ШАПКА ===== */
.header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.header--scrolled { border-bottom-color: var(--c-line); box-shadow: 0 4px 20px rgba(15,43,51,.05); }
.header__inner { display: flex; align-items: center; gap: 24px; height: 72px; }

.logo { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; }
.logo__mark {
  display: grid; place-items: center; width: 34px; height: 34px;
  background: var(--c-primary); color: #fff; border-radius: 10px; font-size: 1.4rem; font-weight: 700;
}
.logo__accent { color: var(--c-primary); }

.nav { display: flex; align-items: center; gap: 28px; margin-left: auto; }
.nav__link { font-weight: 600; font-size: 0.95rem; color: var(--c-muted); transition: color .2s; }
.nav__link:hover { color: var(--c-primary); }
.nav__cta { margin-left: 4px; }

.header__phone { display: flex; align-items: center; gap: 8px; font-weight: 700; color: var(--c-primary); white-space: nowrap; }

.burger { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; margin-left: auto; }
.burger span { width: 24px; height: 2px; background: var(--c-ink); border-radius: 2px; transition: .3s; }
.burger--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger--open span:nth-child(2) { opacity: 0; }
.burger--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== ГЕРОЙ ===== */
.hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #f2f8f9 0%, #e8f4f5 100%); }
.hero__inner { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: center; padding: 72px 20px 88px; }

.badge {
  display: inline-block; background: #fff; color: var(--c-primary);
  font-weight: 700; font-size: 0.82rem; padding: 8px 16px; border-radius: 999px;
  box-shadow: var(--shadow); margin-bottom: 20px;
}
.hero__subtitle { color: var(--c-muted); font-size: 1.1rem; margin: 18px 0 28px; max-width: 540px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__facts { display: flex; gap: 36px; margin-top: 40px; flex-wrap: wrap; }
.hero__facts li { display: flex; flex-direction: column; }
.hero__facts strong { font-size: 1.7rem; font-weight: 800; color: var(--c-primary); }
.hero__facts span { color: var(--c-muted); font-size: 0.9rem; }

.hero__visual { position: relative; display: flex; justify-content: center; align-items: center; min-height: 340px; }
.hero__blob {
  position: absolute; width: 320px; height: 320px; border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, var(--c-accent), var(--c-primary));
  filter: blur(2px); opacity: .18; animation: float 7s ease-in-out infinite;
}
.hero__card {
  position: relative; z-index: 2; background: #fff; border-radius: 24px;
  box-shadow: var(--shadow-lg); padding: 32px; width: 300px; text-align: center;
  animation: float 6s ease-in-out infinite;
}
.drip {
  width: 60px; height: 90px; margin: 0 auto 20px; position: relative;
  background: linear-gradient(180deg, var(--c-accent), var(--c-primary));
  border-radius: 30px 30px 12px 12px; clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
}
.hero__card-title { display: block; font-weight: 800; font-size: 1.15rem; }
.hero__card-sub { display: block; color: var(--c-muted); font-size: .88rem; margin-top: 6px; }

@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-14px); } }

/* ===== ПРЕИМУЩЕСТВА ===== */
.features { padding: 20px 0 10px; margin-top: -40px; position: relative; z-index: 5; }
.features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.feature {
  background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow); transition: transform .2s, box-shadow .2s;
}
.feature:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.feature__icon {
  display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 16px;
  background: var(--c-bg-soft); color: var(--c-primary); border-radius: 14px;
}
.feature__icon svg { width: 26px; height: 26px; }
.feature p { color: var(--c-muted); font-size: .92rem; margin-top: 8px; }

/* ===== СЕКЦИИ ===== */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head p { color: var(--c-muted); margin-top: 14px; }
.section-tag {
  display: inline-block; background: var(--c-bg-soft); color: var(--c-primary);
  font-weight: 700; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em;
  padding: 6px 14px; border-radius: 999px; margin-bottom: 16px;
}
.section-tag--light { background: rgba(255,255,255,.18); color: #fff; }

/* ===== УСЛУГИ ===== */
.services { background: var(--c-bg-soft); }
.services__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative; background: #fff; border: 1px solid var(--c-line);
  border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.card__title { font-size: 1.2rem; margin-bottom: 10px; }
.card__desc { color: var(--c-muted); font-size: .94rem; flex-grow: 1; }
.card__price { margin: 20px 0 16px; font-size: .95rem; color: var(--c-muted); }
.card__price strong { font-size: 1.5rem; color: var(--c-ink); font-weight: 800; }
.card__btn { width: 100%; }
.card--featured { border: 2px solid var(--c-primary); box-shadow: var(--shadow); }
.card__flag {
  position: absolute; top: -13px; left: 28px; background: var(--c-primary); color: #fff;
  font-size: .74rem; font-weight: 700; padding: 5px 14px; border-radius: 999px;
}
.services__note { text-align: center; color: var(--c-muted); font-size: .86rem; margin-top: 28px; }

/* ===== ОБО МНЕ ===== */
.about__inner { display: grid; grid-template-columns: .85fr 1.15fr; gap: 56px; align-items: center; }
.about__photo {
  position: relative; aspect-ratio: 4/5; border-radius: var(--radius);
  background: linear-gradient(160deg, var(--c-accent), var(--c-primary));
  box-shadow: var(--shadow-lg); display: flex; align-items: flex-end; justify-content: center;
  overflow: hidden;
}
.about__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.about__exp {
  position: absolute; top: 24px; right: -18px; background: #fff; border-radius: var(--radius-sm);
  box-shadow: var(--shadow); padding: 16px 22px; text-align: center;
  font-size: 2rem; font-weight: 800; color: var(--c-primary); line-height: 1;
}
.about__exp small { display: block; font-size: .72rem; color: var(--c-muted); font-weight: 600; margin-top: 4px; }
.about__content p { color: var(--c-muted); margin-top: 16px; }
.about__list { margin: 22px 0 30px; }
.about__list li { position: relative; padding-left: 28px; margin-bottom: 10px; color: var(--c-ink); }
.about__list li::before {
  content: "✓"; position: absolute; left: 0; top: 0; color: var(--c-primary);
  font-weight: 800; background: var(--c-bg-soft); width: 20px; height: 20px;
  border-radius: 50%; display: grid; place-items: center; font-size: .8rem;
}

/* ===== ШАГИ ===== */
.steps { background: var(--c-bg-soft); }
.steps__list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; background: #fff; border-radius: var(--radius); padding: 30px 24px; border: 1px solid var(--c-line); }
.step__num {
  display: grid; place-items: center; width: 44px; height: 44px; border-radius: 50%;
  background: var(--c-primary); color: #fff; font-weight: 800; font-size: 1.2rem; margin-bottom: 16px;
}
.step p { color: var(--c-muted); font-size: .92rem; margin-top: 8px; }

/* ===== ОТЗЫВЫ ===== */
.reviews__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.review { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.review__stars { display: flex; gap: 3px; color: #f5a623; margin-bottom: 14px; }
.review__stars svg { width: 17px; height: 17px; }
.review blockquote { color: var(--c-ink); font-size: .98rem; }
.review figcaption { color: var(--c-muted); font-size: .88rem; margin-top: 16px; font-weight: 600; }

/* ===== ЗАЯВКА ===== */
.request { background: linear-gradient(150deg, var(--c-primary), var(--c-primary-dark)); color: #fff; }
.request__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.request__info h2 { color: #fff; }
.request__info p { color: rgba(255,255,255,.85); margin-top: 16px; }
.request__contacts { margin-top: 32px; }
.request__contacts li { padding: 16px 0; border-top: 1px solid rgba(255,255,255,.18); }
.request__contacts span { display: block; font-size: .82rem; color: rgba(255,255,255,.7); text-transform: uppercase; letter-spacing: .05em; }
.request__contacts a { font-size: 1.15rem; font-weight: 700; color: #fff; }
.request__contacts a:hover { text-decoration: underline; }

.form { background: #fff; border-radius: var(--radius); padding: 32px; box-shadow: var(--shadow-lg); }
.form__field { margin-bottom: 18px; }
.form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 7px; color: var(--c-ink); }
.form input, .form select, .form textarea {
  width: 100%; font-family: inherit; font-size: .98rem; color: var(--c-ink);
  padding: 13px 16px; border: 1.5px solid var(--c-line); border-radius: var(--radius-sm);
  background: var(--c-bg-soft); transition: border-color .2s, background .2s;
}
.form textarea { resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus {
  outline: none; border-color: var(--c-primary); background: #fff;
}
.form__checkbox { display: flex; align-items: flex-start; gap: 10px; font-size: .85rem; color: var(--c-muted); margin-bottom: 6px; }
.form__checkbox input { width: auto; margin-top: 3px; }
.form__submit { width: 100%; margin-top: 12px; }
.form__hint { text-align: center; color: var(--c-muted); font-size: .85rem; margin-top: 14px; }
.form__hint a { color: var(--c-primary); font-weight: 600; }
.form__error { display: block; color: #d64545; font-size: .8rem; margin-top: 5px; min-height: 1em; }
.field--invalid input, .field--invalid select { border-color: #d64545; background: #fff5f5; }
.form__field--agree.field--invalid input { border-color: var(--c-line); background: var(--c-bg-soft); }
.form__field--agree.field--invalid .form__checkbox span { color: #d64545; }

.form-success {
  text-align: center; padding: 40px 20px;
}
.form-success__icon {
  display: grid; place-items: center; width: 64px; height: 64px; margin: 0 auto 16px;
  border-radius: 50%; background: var(--c-bg-soft); color: var(--c-primary);
}
.form-success__icon svg { width: 32px; height: 32px; }

/* ===== ПОДВАЛ ===== */
.footer { background: var(--c-ink); color: rgba(255,255,255,.8); }
.footer__inner { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 40px; padding: 56px 20px 32px; }
.logo--light { color: #fff; }
.footer__note { font-size: .84rem; color: rgba(255,255,255,.55); margin-top: 16px; max-width: 380px; }
.footer__col h4 { color: #fff; margin-bottom: 16px; font-size: 1rem; }
.footer__col a { display: block; padding: 5px 0; font-size: .92rem; color: rgba(255,255,255,.7); transition: color .2s; }
.footer__col a:hover { color: var(--c-accent); }
.footer__bottom { padding: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: .84rem; color: rgba(255,255,255,.5); text-align: center; }

/* ===== ПЛАВАЮЩАЯ КНОПКА ===== */
.fab {
  position: fixed; right: 24px; bottom: 24px; z-index: 40;
  width: 58px; height: 58px; border-radius: 50%; background: #25d366; color: #fff;
  display: grid; place-items: center; box-shadow: 0 10px 26px rgba(37,211,102,.4);
  transition: transform .2s;
}
.fab:hover { transform: scale(1.08); }

/* ===== АНИМАЦИЯ ПОЯВЛЕНИЯ ===== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.reveal--visible { opacity: 1; transform: none; }

/* ===== АДАПТИВ ===== */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; gap: 32px; padding: 48px 20px 64px; }
  .hero__visual { min-height: 300px; }
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .steps__list { grid-template-columns: repeat(2, 1fr); }
  .reviews__grid { grid-template-columns: 1fr; }
  .about__inner { grid-template-columns: 1fr; gap: 36px; }
  .about__photo { max-width: 320px; margin: 0 auto; }
  .request__inner { grid-template-columns: 1fr; gap: 36px; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .nav {
    position: fixed; top: 72px; right: 0; left: 0; flex-direction: column; align-items: stretch;
    gap: 0; background: #fff; padding: 12px 20px 24px; border-bottom: 1px solid var(--c-line);
    box-shadow: var(--shadow); transform: translateY(-140%); transition: transform .3s ease; z-index: -1;
  }
  .nav--open { transform: translateY(0); }
  .nav__link { padding: 14px 0; border-bottom: 1px solid var(--c-line); font-size: 1rem; }
  .nav__cta { margin: 18px 0 0; }
  .burger { display: flex; }
  .header__phone span { display: none; }
  .features__grid { grid-template-columns: 1fr; }
  .services__grid { grid-template-columns: 1fr; }
  .steps__list { grid-template-columns: 1fr; }
  section { padding: 56px 0; }
  .footer__inner { grid-template-columns: 1fr; gap: 28px; }
}

@media (max-width: 420px) {
  .hero__facts { gap: 22px; }
  .btn--lg { width: 100%; }
  .hero__actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}