.brand,
.topbar-actions,
.button-row,
.control-row,
.segmented {
  display: flex;
  align-items: center;
  gap: 12px;
}

.button-row,
.segmented {
  row-gap: 14px;
  margin-top: 12px;
}

.topbar-actions {
  gap: 14px;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--glass-highlight);
  border-radius: 13px;
  background:
    radial-gradient(circle at 30% 22%, rgb(255 255 255 / 85%), transparent 18%),
    linear-gradient(105deg, var(--accent-from), var(--accent-mid) 52%, var(--accent-to));
  box-shadow: 0 14px 34px var(--glass-accent-shadow), var(--inner-glow);
}

.brand strong,
.panel h2,
.panel h3 {
  display: block;
  margin: 0;
}

.brand small,
.muted,
.hint {
  color: var(--muted);
}

.brand small,
.hint {
  font-size: 12px;
}

.button,
.tool-button,
select,
input[type="number"] {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-bg);
  color: var(--text);
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.55 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark))),
    0 4px 18px var(--glass-shadow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  transition: background-color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1), border-color 0.35s ease;
}

.button,
.tool-button {
  cursor: pointer;
  padding: 9px 12px;
}

.button:hover,
.tool-button:hover,
.button.active,
.tool-button.active {
  border-color: var(--accent);
  color: var(--text);
  transform: translateY(-1px);
  background: var(--glass-bg-hover);
}

.button.primary {
  background: linear-gradient(105deg, var(--accent-from), var(--accent-mid) 50%, var(--accent-to));
  color: #1d1d1f;
  border-color: var(--glass-accent-border);
  font-weight: 700;
  box-shadow: 0 8px 26px var(--glass-accent-shadow), var(--inner-glow);
}

.button.accent {
  background: var(--glass-accent-bg);
  border-color: var(--glass-accent-border);
}

.tool-button {
  width: 50px;
  height: 46px;
  padding: 4px;
  font-size: 10px;
  border-radius: 16px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--glass-bg);
  box-shadow: var(--shadow), var(--inner-glow);
  padding: 12px;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  isolation: isolate;
}

.panel h2,
.panel h3 {
  margin-bottom: 10px;
  font-size: 14px;
}

.panel-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 7px 12px;
  font-size: 12px;
}

.control-row {
  justify-content: space-between;
  margin: 8px 0;
  font-size: 12px;
}

.control-row input,
.control-row select {
  width: 98px;
  padding: 6px 8px;
}

.segmented {
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.segmented button {
  flex: 1 1 auto;
}

.panel-actions {
  flex-wrap: wrap;
  align-items: flex-start;
  margin: 12px 0 0;
}

.panel-actions + .panel-actions {
  margin-top: 14px;
}

.panel .button {
  margin-bottom: 2px;
}

.sidebar-tabs {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass-bg);
  box-shadow: var(--shadow), var(--inner-glow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
}

.sidebar-tab {
  display: grid;
  place-items: center;
  width: 100%;
  height: 38px;
  padding: 0;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  transition: background-color 0.35s ease, color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1), border-color 0.35s ease;
}

.sidebar-tab:hover,
.sidebar-tab.is-active {
  border-color: var(--glass-accent-border);
  background: var(--glass-accent-bg);
  color: var(--text);
  transform: translateY(-1px);
}

.sidebar-tab svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.sidebar-panel {
  display: none;
}

.sidebar-panel.is-active {
  display: block;
}

.theme-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  margin: 0;
  padding: 0.3rem;
  border: none;
  border-radius: 9999px;
  background: var(--switcher-track);
  backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(22px) saturate(var(--glass-saturation));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.55 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark))),
    0 4px 18px var(--glass-shadow);
}

.theme-switcher::after {
  content: "";
  position: absolute;
  top: 0.3rem;
  left: 0.3rem;
  width: 2.35rem;
  height: 2.35rem;
  border-radius: 50%;
  background: var(--switcher-thumb);
  backdrop-filter: blur(14px) saturate(var(--glass-saturation));
  -webkit-backdrop-filter: blur(14px) saturate(var(--glass-saturation));
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, calc(0.65 * var(--glass-reflex-light))),
    inset 0 -1px 2px rgba(0, 0, 0, calc(0.1 * var(--glass-reflex-dark))),
    0 2px 10px rgba(0, 0, 0, calc(0.12 * var(--glass-reflex-dark)));
  transition: transform 0.5s cubic-bezier(0.34, 1.45, 0.64, 1);
  pointer-events: none;
  z-index: 0;
}

.theme-switcher:has(.theme-switcher__input[data-option="2"]:checked)::after {
  transform: translateX(2.35rem);
}

.theme-switcher__option {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.35rem;
  height: 2.35rem;
  cursor: pointer;
  border-radius: 50%;
}

.theme-switcher__input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.theme-switcher__icon {
  color: var(--switcher-icon);
  font-size: 1rem;
  line-height: 1;
  transition: color 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.45, 0.64, 1);
}

.theme-switcher:has(.theme-switcher__input[data-option="1"]:checked) .theme-switcher__option:first-of-type .theme-switcher__icon,
.theme-switcher:has(.theme-switcher__input[data-option="2"]:checked) .theme-switcher__option:last-of-type .theme-switcher__icon {
  color: var(--switcher-icon-active);
  transform: scale(1.08);
}

.empty-state {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: min(520px, 84vw);
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--glass-bg);
  box-shadow: var(--shadow), var(--inner-glow);
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  text-align: center;
  pointer-events: none;
}

.empty-state h1 {
  margin: 0 0 8px;
}

.workspace.is-dragging .empty-state {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgb(139 211 255 / 12%);
}

.hidden {
  display: none !important;
}

.preview-canvas {
  width: 100%;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, calc(0.06 + 0.03 * var(--glass-reflex-light)));
  box-shadow: var(--inner-glow);
}