/* ============================================================
   tenzor.cloud — общий CSS: навбар + кнопки
   Используется на: index.html, partners/, contacts/, gonka/
   При изменении дизайна навбара/кнопок правьте ТОЛЬКО этот файл.
   ============================================================ */

/* === NAVBAR === */
.navbar { position: sticky; top: 0; z-index: 40; font-family: var(--font-body); color: var(--text-primary); background: var(--surface-card); border-bottom: 1px solid var(--border-subtle); }
.navbar-inner { max-width: var(--container-max); margin: 0 auto; display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.navbar-left { display: flex; align-items: center; flex: 0 0 auto; }
.navbar-logo { display: flex; align-items: center; gap: 9px; font: 800 20px var(--font-display); letter-spacing: var(--tracking-tight); color: var(--text-primary); text-decoration: none; }
.navbar-logo svg { flex-shrink: 0; }
.navbar-links { display: flex; gap: 22px; list-style: none; flex: 1; justify-content: center; }
.navbar-links a { font: var(--text-body-s); color: inherit; text-decoration: none; opacity: 0.85; }
.navbar-links a:hover { opacity: 1; }
.navbar-right { display: flex; align-items: center; gap: 18px; }
.navbar-phone { display: flex; align-items: center; gap: 6px; font: var(--text-body-s); color: var(--text-primary); white-space: nowrap; text-decoration: none; }
.navbar-phone .matsym { font-size: 16px; color: var(--icon-default); }
.navbar-burger { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; background: none; border: none; cursor: pointer; color: var(--text-primary); }
.navbar-burger .matsym { font-size: 26px; }
.navbar-mobile { display: none; position: absolute; top: 100%; left: 0; right: 0; z-index: 50; background: var(--surface-card); border-bottom: 1px solid var(--border-subtle); box-shadow: var(--shadow-l); }
.navbar-mobile.open { display: block; }
.navbar-mobile-inner { max-width: var(--container-max); margin: 0 auto; width: 100%; padding: 20px; display: flex; flex-direction: column; gap: 18px; }
.navbar-mobile nav { display: flex; flex-direction: column; gap: 16px; }
.navbar-mobile nav a { font: var(--text-body-m); color: var(--text-primary); text-decoration: none; }
.navbar-mobile .nm-phone { display: flex; align-items: center; gap: 6px; font: var(--text-body-s); color: var(--text-primary); text-decoration: none; }
.navbar-mobile .nm-phone .matsym { font-size: 16px; color: var(--icon-default); }
@media (max-width: 860px) {
  .navbar-links, .navbar-right { display: none; }
  .navbar-burger { display: flex; }
}

/* === BUTTONS === */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-family: var(--font-body); font: var(--text-label-m); border-radius: var(--radius-m); border: 1px solid transparent; cursor: pointer; transition: background var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard), box-shadow var(--duration-fast) var(--ease-standard); padding: 11px 20px; text-decoration: none; box-sizing: border-box; }
.btn-sm { font: var(--text-label-s); padding: 8px 14px; }
.btn-primary { background: var(--primary-500); color: var(--text-on-brand); box-shadow: var(--shadow-brand-glow); }
.btn-primary:hover { background: var(--primary-600); color: var(--text-on-brand); }
.btn-secondary { background: var(--surface-card); color: var(--text-primary); border-color: var(--border-default); }
.btn-secondary:hover { background: var(--primary-500); border-color: var(--primary-500); color: var(--text-on-brand); }
.btn .matsym { font-size: 18px; }