/* ===== Header (standalone) ===== */

/* Topbar */
.topbar{
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--panel) 86%, transparent);
  border-bottom: 1px solid var(--ring);
  backdrop-filter: saturate(1.2) blur(8px);
}
.topbar.is-scrolled{ box-shadow: 0 6px 24px rgba(0,0,0,.35); }

/* 3 sloupce: logo | menu | účet */
.hdr-grid{
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  height: 68px;
  column-gap: 18px;
}
.container{ max-width:1200px; margin:0 auto; padding:0 20px; } /* lokální fallback */

/* Značka */
.brand{
  display:flex; align-items:center; gap:10px;
  color:#fff; text-decoration:none; font-weight:900; letter-spacing:.01em;
}
.brand img{ width:26px; height:26px; }
.brand span{ color:#eef3fb; }
.brand em{ color:var(--accent); font-style:normal; }

/* Menu */
.mainnav ul{
  display:flex; align-items:center; justify-content:center;
  gap:24px; list-style:none; margin:0; padding:0;
}
.mainnav a{
  position:relative; display:inline-block;
  padding:10px 2px;
  color:#cfe0f6; text-decoration:none; font-weight:700;
  text-transform:none; letter-spacing:.01em; line-height:1.1;
  opacity:.92; transition:opacity .15s, color .15s;
}
.mainnav a::after{
  content:""; position:absolute; left:0; right:0; bottom:-6px;
  height:2px; border-radius:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  transform:scaleX(0); transform-origin:50% 50%; transition:transform .22s ease-out;
}
.mainnav a:hover,
.mainnav a:focus-visible{ color:#fff; opacity:1; }
.mainnav a:hover::after,
.mainnav a:focus-visible::after{ transform:scaleX(1); }

/* aktivní stránka */
.mainnav a[aria-current="page"]{ color:#fff; opacity:1; }
.mainnav a[aria-current="page"]::after{ transform:scaleX(1); }

/* Akce (pravý blok) */
.actions{ display:flex; gap:10px; align-items:center; justify-content:flex-end; min-width:200px; }
.btn-login{
  display:inline-flex; align-items:center; gap:8px;
  padding:9px 14px; border-radius:999px;
  background:linear-gradient(180deg,var(--panel-2),#0f141c);
  border:1px solid var(--ring); color:var(--text); font-weight:700; text-decoration:none; line-height:1;
}
.btn-login:hover{ border-color:var(--accent); }

/* Hamburger */
.hamburger{
  display:none; width:42px; height:40px; border-radius:10px;
  background:var(--panel-2); border:1px solid var(--ring); color:var(--text);
  justify-content:center; align-items:center; transition:transform .12s;
}
.hamburger:active{ transform:scale(.98); }

/* Mobilní panel */
.mobile-panel{ display:none; }
.mobile-panel.open{
  position:fixed; inset:68px 0 0 0; z-index:60;
  background: color-mix(in oklab, var(--panel-2) 92%, transparent);
  border-top:1px solid var(--ring);
  padding:14px 12px; animation: slideDown .18s ease-out;
}
@keyframes slideDown{ from{opacity:0; transform:translateY(-6px)} to{opacity:1; transform:translateY(0)} }
.mobile-panel ul{ list-style:none; margin:0; padding:0; }
.mobile-panel a{
  display:block; padding:12px 14px; border-radius:12px;
  color:var(--text); text-decoration:none; border:1px solid transparent;
}
.mobile-panel a:hover{ background:var(--panel-3); border-color:var(--ring); }

/* A11y focus */
.mainnav a:focus-visible,
.btn-login:focus-visible,
.hamburger:focus-visible{ outline:2px solid var(--accent-2); outline-offset:2px; border-radius:12px; }

/* Breakpoint */
@media (max-width: 900px){
  .mainnav{ display:none; }
  .hamburger{ display:inline-flex; }
}


/* ===== Auth / login buttons ===== */
.btn-login,
.btn-auth{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 14px;border-radius:10px;
  background:var(--panel-2);border:1px solid var(--ring);
  color:var(--text);font-weight:700;text-decoration:none;line-height:1;
  transition:background .15s,border-color .15s,opacity .15s;
}
.btn-login:hover,.btn-auth:hover{background:var(--panel-3);border-color:var(--accent)}
.btn-auth.is-loading{opacity:.7;pointer-events:none;position:relative}
.btn-auth.is-loading::after{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;margin-left:6px;display:inline-block;animation:pulse .9s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-2px)}}

/* user info (pravý blok) */
.who{display:inline-flex;align-items:center;gap:6px;max-width:200px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.who .avatar{width:24px;height:24px;border-radius:50%;border:1px solid var(--ring);flex:0 0 24px;}

/* responsivita */
@media (max-width:1200px){
  .mainnav ul{gap:16px;}
  .actions{min-width:180px;}
  .who .name{display:none;}
}