/* =========================================
   Layout: header, sidenav, main, grid, breakpoint
   ========================================= */

/* ---------- Topbar (SPA) ---------- */
.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
  padding: 8px 16px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  flex-wrap: wrap;
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 15px;
  color: var(--gold);
}
.topbar .brand-mark { font-size: 18px; }
.topbar-spacer { flex: 1; }
.topbar .credits {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
}
.topbar .credits .c-time { color: var(--gold); }
.topbar .credits .c-consumption { color: var(--purple); }
.topbar .user-name { color: var(--text-dim); font-size: 13px; }

/* ---------- Topnav (link di sezione nella topbar) ---------- */
.topnav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.topnav-link {
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text-dim);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-weight: 600;
  transition: all var(--transition);
  text-decoration: none;
}
.topnav-link:hover {
  color: var(--text);
  box-shadow: 0 0 0 2px rgba(212,175,55,0.3);
}
.topnav-link.active {
  background: rgba(212,175,55,0.12);
  color: var(--gold);
  border-color: var(--gold-dim);
}

/* ---------- Main container ---------- */
.main-container {
  padding: 20px;
  min-height: calc(100vh - 56px);
}

/* ---------- Auth pages (pubbliche) ---------- */
.topbar-public {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
}
.auth-container {
  max-width: 420px;
  margin: 40px auto;
  padding: 32px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

/* ---------- Grid profili ---------- */
.grid-profiles {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

/* =========================================
   Breakpoint: Tablet (641-1024px)
   ========================================= */
@media (min-width: 641px) {
  .grid-profiles { grid-template-columns: 1fr 1fr; }
  .grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
}

/* =========================================
   Breakpoint: Desktop (>1024px)
   ========================================= */
@media (min-width: 1025px) {
  .grid-profiles { grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
  .grid-3col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
}

/* Mobile: user-name più stretta */
@media (max-width: 640px) {
  .topbar .user-name { display: none; }
  .topbar { padding: 6px 10px; }
}

/* =========================================
   Mobile: modal fullscreen
   ========================================= */
@media (max-width: 640px) {
  .modal {
    max-width: 100%;
    max-height: 100vh;
    border-radius: 0;
    height: 100vh;
  }
  .modal-backdrop { padding: 0; }
  #toast-stack {
    bottom: 8px;
    right: 8px;
    left: 8px;
    top: auto;
    max-width: none;
  }
  .btn-small { min-height: 40px; padding: 8px 12px; }
}