/* ============================================================
   TOP BAR
============================================================ */
.topbar {
  position: sticky; top: 0; z-index: 300;
  height: 56px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  transition: background .22s, border-color .22s;
}

.topbar__left { display: flex; align-items: center; gap: 10px; }

.logo {
    width: 36px;
    height: 36px;

    display: flex;
    align-items: center;
    justify-content: center;

    background: transparent;
    border-radius: 0;
    padding: 0;
}

.logo svg {
    width: 100%;
    height: 100%;
}

.topbar__title { font-size: 14px; font-weight: 600; color: var(--text); }
.topbar__sep { width: 1px; height: 18px; background: var(--border); margin: 0 2px; }
.topbar__sub { font-size: 12px; color: var(--text-3); }

.topbar__right { display: flex; align-items: center; gap: 8px; }

/* Dark Mode Toggle */
.dm-toggle {
  display: flex; align-items: center; gap: 7px;
  padding: 5px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface-alt);
  cursor: pointer;
  user-select: none;
  transition: border-color .15s, background .15s;
}
.dm-toggle:hover { border-color: var(--border-strong); }
.dm-toggle__icon { font-size: 11px; color: var(--text-2); width: 12px; text-align: center; }
.dm-toggle__track {
  width: 30px; height: 17px; border-radius: 9px;
  background: var(--toggle-track);
  position: relative;
  transition: background .22s;
  flex-shrink: 0;
}
[data-theme="dark"] .dm-toggle__track { background: var(--toggle-active); }
.dm-toggle__thumb {
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--toggle-thumb);
  position: absolute; top: 2px; left: 2px;
  transition: transform .22s;
  box-shadow: 0 1px 4px rgba(0,0,0,.22);
}
[data-theme="dark"] .dm-toggle__thumb { transform: translateX(13px); }
.dm-toggle__label { font-size: 12px; font-weight: 500; color: var(--text-2); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  border: none; border-radius: 7px;
  font-size: 12.5px; font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  white-space: nowrap;
  transition: opacity .15s, background .15s, border-color .15s;
}
.btn--primary { background: var(--btn-bg); color: var(--btn-fg); }
.btn--primary:hover { opacity: .84; }
.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover { background: var(--ghost-hover); border-color: var(--border-strong); }
.btn:disabled { opacity: .35; pointer-events: none; }
.btn i { font-size: 11px; }