/* Кей-Клининг — демо-редизайн. Плоский дизайн, без градиентов.
   Фирменная палитра взята с оригинального сайта key-cleaning.ru:
   синий #377fb5, тёмно-синий #296998, светло-синий #50b8e9, тёмный текст #2d2d2d. */

:root {
  --blue: #377fb5;
  --blue-dark: #296998;
  --blue-deep: #00678d;
  --blue-light: #50b8e9;
  --blue-pale: #edf4f7;
  --ink: #2d2d2d;
  --gray: #5d5d5d;
  --bg: #ffffff;
  --bg-alt: #f5f8fa;
  --line: #e2e8ec;
  --white: #ffffff;
  --maxw: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", "PT Sans", "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 17px;
}

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

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

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

/* ---------- Header ---------- */
.site-header {
  background: var(--white);
  border-bottom: 3px solid var(--blue);
  position: sticky;
  top: 0;
  z-index: 50;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 20px;
  max-width: var(--maxw);
  margin: 0 auto;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  color: var(--ink);
  font-size: 20px;
}
.brand img { width: 46px; height: 46px; }
.brand small { display: block; font-weight: 400; font-size: 12px; color: var(--gray); }

.nav-toggle {
  display: none;
  background: var(--blue);
  color: #fff;
  border: 0;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: 15px;
  cursor: pointer;
}
.main-nav ul {
  list-style: none;
  display: flex;
  gap: 4px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  color: var(--ink);
  padding: 10px 14px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  display: block;
}
.main-nav a:hover, .main-nav a.active {
  background: var(--blue-pale);
  color: var(--blue-dark);
  text-decoration: none;
}

/* ---------- Hero ---------- */
.hero {
  background: var(--blue);
  color: #fff;
  padding: 64px 0;
}
.hero h1 {
  font-size: 40px;
  margin: 0 0 14px;
  line-height: 1.15;
}
.hero p {
  font-size: 19px;
  max-width: 620px;
  margin: 0 0 26px;
  opacity: 0.95;
}
.btn {
  display: inline-block;
  background: #fff;
  color: var(--blue-dark);
  font-weight: 700;
  padding: 14px 26px;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  font-size: 16px;
}
.btn:hover { background: var(--blue-pale); text-decoration: none; }
.btn-primary {
  background: var(--blue-dark);
  color: #fff;
}
.btn-primary:hover { background: var(--blue-deep); color: #fff; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- Sections ---------- */
.section { padding: 56px 0; }
.section-alt { background: var(--bg-alt); }
.section h2 {
  font-size: 30px;
  margin: 0 0 8px;
  color: var(--ink);
}
.section .lead { color: var(--gray); margin: 0 0 32px; max-width: 640px; }
.section-head { margin-bottom: 8px; }

/* ---------- Service grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.card img { width: 100%; height: 190px; object-fit: cover; }
.card-body { padding: 18px 20px 22px; }
.card-body h3 { margin: 0 0 8px; font-size: 19px; color: var(--blue-dark); }
.card-body p { margin: 0 0 14px; color: var(--gray); font-size: 15px; }
.card .tag {
  display: inline-block;
  background: var(--blue-pale);
  color: var(--blue-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
}

/* ---------- Features ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.feature {
  background: var(--white);
  border-top: 4px solid var(--blue);
  border-radius: 10px;
  padding: 22px 22px 24px;
}
.feature h3 { margin: 0 0 8px; font-size: 18px; }
.feature p { margin: 0; color: var(--gray); font-size: 15px; }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat { text-align: center; padding: 18px 12px; background: var(--blue-pale); border-radius: 10px; }
.stat .num { font-size: 32px; font-weight: 800; color: var(--blue-dark); }
.stat .lab { font-size: 14px; color: var(--gray); }

/* ---------- Gallery ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.gallery img {
  width: 100%; height: 180px; object-fit: cover;
  border-radius: 8px; border: 1px solid var(--line);
}

/* ---------- CTA band ---------- */
.cta-band { background: var(--blue-dark); color: #fff; padding: 44px 0; }
.cta-band h2 { color: #fff; margin: 0 0 8px; }
.cta-band p { opacity: 0.95; margin: 0 0 20px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 36px; }
.contact-info p { margin: 0 0 12px; }
.contact-info strong { color: var(--blue-dark); }
.form label { display: block; margin-bottom: 14px; font-weight: 600; font-size: 15px; }
.form input, .form textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 16px;
  font-family: inherit;
  margin-top: 6px;
}
.form input:focus, .form textarea:focus { outline: 2px solid var(--blue); border-color: var(--blue); }
.form .hint { font-weight: 400; font-size: 13px; color: var(--gray); }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #cdd4d8; padding: 40px 0 24px; font-size: 14px; }
.site-footer a { color: #9fd0ef; }
.footer-cols { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 28px; }
.footer-cols h4 { color: #fff; margin: 0 0 12px; font-size: 16px; }
.footer-cols ul { list-style: none; padding: 0; margin: 0; }
.footer-cols li { margin-bottom: 8px; }
.foot-bottom {
  border-top: 1px solid #3a3a3a;
  margin-top: 26px; padding-top: 18px;
  font-size: 13px; color: #9aa3a8;
}
.reklama-badge {
  display: inline-block;
  background: var(--blue-deep);
  color: #fff;
  font-weight: 700;
  font-size: 12px;
  padding: 3px 10px;
  border-radius: 4px;
  margin-bottom: 10px;
}
.disclaimer { background: #232323; border-radius: 8px; padding: 14px 16px; font-size: 13px; color: #b9c0c4; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .grid, .features { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .contact-grid, .footer-cols { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .nav-toggle { display: block; }
  .main-nav { display: none; width: 100%; }
  .main-nav.open { display: block; }
  .header-inner { flex-wrap: wrap; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .grid, .features, .gallery, .stats { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
}