/* Шапка и меню — общие для главной и страниц пасьянсов */
.site-header{height:60px;display:flex;align-items:center;gap:24px;padding:0 24px;background:#fff;border-bottom:1px solid #e6e9ee;box-shadow:0 2px 10px rgba(16,24,40,.05);position:relative;z-index:1000;font-family:Arial,Helvetica,sans-serif}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#14532d;font-weight:800;font-size:21px;white-space:nowrap;letter-spacing:-.01em}
.logo img{width:36px;height:36px;display:block}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.main-nav>a,.all-menu>summary{color:#1f2937;text-decoration:none;font-size:15px;font-weight:600;padding:19px 12px;border-bottom:3px solid transparent;cursor:pointer;white-space:nowrap}
.main-nav>a:hover,.all-menu>summary:hover{color:#15803d}
.main-nav>a.active{color:#15803d;border-bottom-color:#16a34a}
.all-menu{position:relative}
.all-menu>summary{list-style:none;display:flex;align-items:center;gap:6px}
.all-menu>summary::-webkit-details-marker{display:none}
.all-menu>summary::after{content:"";width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-3px)}
.all-menu[open]>summary{color:#15803d}
.menu-list{position:absolute;right:0;top:calc(100% + 2px);width:460px;max-width:calc(100vw - 20px);background:#fff;border:1px solid #e6e9ee;border-radius:12px;box-shadow:0 18px 40px rgba(16,24,40,.16);padding:10px;display:grid;grid-template-columns:1fr 1fr;gap:2px}
.menu-list a{display:block;padding:10px 12px;border-radius:8px;color:#1f2937;text-decoration:none;font-size:15px;font-weight:600}
.menu-list a:hover{background:#f0fdf4;color:#15803d}
.menu-list a.active{background:#dcfce7;color:#166534}
@media(max-width:820px){
  .site-header{padding:0 12px;gap:10px}
  .logo{font-size:18px}.logo img{width:30px;height:30px}
  .main-nav>a{display:none}
  .all-menu>summary{padding:10px 14px;border:1px solid #d1d5db;border-radius:10px;border-bottom-width:1px}
  .menu-list{position:fixed;left:10px;right:10px;top:64px;width:auto;grid-template-columns:1fr 1fr}
}
@media(max-width:440px){
  .logo{font-size:16px;gap:7px}.logo img{width:28px;height:28px}
  .all-menu>summary{padding:8px 10px;font-size:14px}
}