#studioAppRoot { min-height: 100dvh; }

.studio-app-shell {
  display: grid;
  min-height: 100dvh;
  grid-template-columns: 17rem minmax(0, 1fr);
  overflow: hidden;
  background: var(--color-bg);
}

.studio-sidebar {
  position: relative;
  z-index: calc(var(--z-header) + 1);
  display: flex;
  height: 100dvh;
  min-height: 0;
  flex-direction: column;
  padding: var(--space-5);
  overflow: hidden;
  border-right: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.studio-sidebar__brand {
  display: flex;
  min-height: 3.25rem;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--space-2);
}

.studio-sidebar__brand .brand { min-width: 0; }
.studio-sidebar__brand .brand small { color: var(--color-text-subtle); }

.studio-sidebar__close,
.studio-mobile-menu {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  place-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
}

.studio-sidebar__close svg,
.studio-mobile-menu svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.studio-sidebar__nav {
  display: grid;
  min-height: 0;
  align-content: start;
  flex: 1;
  gap: var(--space-1);
  margin-top: var(--space-8);
  padding: var(--space-2) var(--space-1) var(--space-5) 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
}

.studio-sidebar__group { display: grid; gap: var(--space-1); }

.studio-sidebar__library-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 2.5rem;
  gap: var(--space-1);
}

.studio-sidebar__nav a {
  position: relative;
  display: flex;
  min-height: 3rem;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-4);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 650;
  transition: background-color var(--duration-fast) var(--ease-standard), color var(--duration-fast) var(--ease-standard);
}

.studio-sidebar__nav a::before {
  position: absolute;
  top: 0.75rem;
  bottom: 0.75rem;
  left: -1.25rem;
  width: 0.2rem;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
  opacity: 0;
  transform: scaleY(0.5);
  transition: opacity var(--duration-fast) var(--ease-standard), transform var(--duration-fast) var(--ease-standard);
}

.studio-sidebar__nav a > span { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.studio-sidebar__nav a:hover { background: var(--color-surface-hover); color: var(--color-text); }
.studio-sidebar__nav a:active { background: var(--color-accent-soft); }
.studio-sidebar__nav a:focus-visible,
.studio-sidebar__disclosure:focus-visible,
.studio-profile-trigger:focus-visible,
.studio-profile-menu :is(a, button):focus-visible,
.studio-sidebar__close:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; }
.studio-sidebar__nav a.is-active,
.studio-sidebar__nav a.is-active-parent { background: var(--color-surface); color: var(--color-text); }
.studio-sidebar__nav a.is-active::before,
.studio-sidebar__nav a.is-active-parent::before { opacity: 1; transform: scaleY(1); }
.studio-sidebar__nav svg { width: 1.15rem; height: 1.15rem; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.65; }

.studio-sidebar__subnav {
  display: grid;
  gap: var(--space-1);
  margin: 0 0 var(--space-1) 2.15rem;
  padding-left: var(--space-3);
  border-left: 1px solid var(--color-border);
}

.studio-sidebar__subnav[hidden] { display: none; }

.studio-sidebar__subnav a {
  min-height: 2.35rem;
  padding-inline: var(--space-3);
  font-size: var(--font-size-xs);
}

.studio-sidebar__subnav a::before { display: none; }

.studio-sidebar__subnav a.is-active {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.studio-sidebar__disclosure {
  display: grid;
  width: 2.5rem;
  min-height: 3rem;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-subtle);
  cursor: pointer;
}

.studio-sidebar__disclosure:hover { background: var(--color-surface-hover); color: var(--color-text); }
.studio-sidebar__disclosure svg { width: 1rem; height: 1rem; transition: transform var(--duration-fast) var(--ease-standard); }
.studio-sidebar__disclosure[aria-expanded="true"] svg { transform: rotate(90deg); }

.studio-sidebar__profile {
  position: relative;
  flex: 0 0 auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.studio-profile-trigger {
  display: grid;
  width: 100%;
  min-height: 3.75rem;
  grid-template-columns: 2.35rem minmax(0, 1fr) 1.15rem;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  background: transparent;
  color: var(--color-text);
  text-align: left;
  cursor: pointer;
}

.studio-profile-trigger:hover,
.studio-profile-trigger[aria-expanded="true"] { border-color: var(--color-border); background: var(--color-surface); }
.studio-profile-trigger__avatar,
.studio-profile-page-card__avatar { display: grid; place-items: center; border: 1px solid var(--color-border-strong); border-radius: 50%; background: var(--color-accent-soft); color: var(--color-accent); font-size: var(--font-size-xs); font-weight: 800; }
.studio-profile-trigger__avatar { width: 2.35rem; height: 2.35rem; }
.studio-profile-trigger__copy { display: grid; min-width: 0; gap: 0.12rem; }
.studio-profile-trigger__copy strong,
.studio-profile-trigger__copy small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.studio-profile-trigger__copy strong { font-size: var(--font-size-sm); }
.studio-profile-trigger__copy small { color: var(--color-text-subtle); font-size: var(--font-size-xs); }
.studio-profile-trigger__more { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; }

.studio-profile-menu {
  position: absolute;
  right: 0;
  bottom: calc(100% + var(--space-3));
  left: 0;
  z-index: calc(var(--z-header) + 3);
  display: grid;
  gap: var(--space-1);
  max-height: min(28rem, calc(100dvh - 9rem));
  padding: var(--space-2);
  overflow-y: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-lg);
}

.studio-profile-menu[hidden] { display: none; }
.studio-profile-menu :is(a, button) { display: flex; width: 100%; min-height: 2.6rem; align-items: center; gap: var(--space-3); padding: var(--space-2) var(--space-3); border: 0; border-radius: var(--radius-md); background: transparent; color: var(--color-text-muted); font: inherit; font-size: var(--font-size-xs); text-align: left; cursor: pointer; }
.studio-profile-menu :is(a, button):hover { background: var(--color-surface-hover); color: var(--color-text); }
.studio-profile-menu :is(a, button).is-active { background: var(--color-accent-soft); color: var(--color-accent); }
.studio-profile-menu svg { width: 1rem; height: 1rem; flex: 0 0 auto; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.65; }
.studio-profile-menu [data-studio-signout] { margin-top: var(--space-1); border-top: 1px solid var(--color-border); border-radius: 0 0 var(--radius-md) var(--radius-md); color: var(--color-danger); }

.studio-profile-page-card { display: flex; align-items: center; gap: var(--space-6); padding: clamp(var(--space-6), 5vw, var(--space-10)); }
.studio-profile-page-card__avatar { width: 5rem; height: 5rem; flex: 0 0 auto; font-size: var(--font-size-xl); }
.studio-profile-page-card__eyebrow { margin: 0; color: var(--color-accent) !important; font-size: var(--font-size-xs); font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.studio-profile-page-card h2 { margin: var(--space-2) 0 0; }
.studio-profile-page-card p:last-child { margin: var(--space-2) 0 0; color: var(--color-text-muted); }

body.is-studio-drawer-open { overflow: hidden; }
.studio-workspace { min-width: 0; height: 100dvh; overflow: hidden; }

.studio-app-header {
  position: relative;
  z-index: var(--z-header);
  display: flex;
  min-height: 6.75rem;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  padding: var(--space-5) clamp(var(--space-6), 4vw, var(--space-10));
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(20px);
}

.studio-app-header__identity { display: flex; min-width: 0; align-items: center; gap: var(--space-4); }
.studio-app-header h1 { margin: var(--space-1) 0 0; font-size: clamp(1.65rem, 2.6vw, 2.25rem); letter-spacing: -0.035em; }
.studio-breadcrumb { display: flex; align-items: center; gap: var(--space-2); color: var(--color-text-subtle); font-size: var(--font-size-xs); }
.studio-breadcrumb i { color: var(--color-border-strong); font-style: normal; }
.studio-app-header__actions { display: flex; flex: 0 0 auto; align-items: center; gap: var(--space-3); }
.studio-session-indicator { display: inline-flex; min-height: 2.75rem; align-items: center; gap: var(--space-2); padding-inline: var(--space-4); border: 1px solid var(--color-border); border-radius: var(--radius-pill); color: var(--color-text-muted); font-size: var(--font-size-xs); }
.studio-session-indicator > span:first-child { width: 0.45rem; height: 0.45rem; border-radius: 50%; background: var(--color-success); box-shadow: 0 0 0 0.25rem color-mix(in srgb, var(--color-success) 12%, transparent); }
.studio-avatar { display: grid; width: 2.75rem; height: 2.75rem; place-items: center; border: 1px solid var(--color-border-strong); border-radius: 50%; background: var(--color-surface); color: var(--color-text); font-size: 0.72rem; font-weight: 800; cursor: default; }

.studio-app-main {
  height: calc(100dvh - 6.75rem);
  overflow: auto;
  padding: clamp(var(--space-8), 5vw, var(--space-12)) clamp(var(--space-6), 5vw, var(--space-12)) var(--space-16);
  scroll-behavior: smooth;
}

.studio-sidebar-overlay { display: none; }

@media (max-width: 64rem) {
  .studio-app-shell { grid-template-columns: minmax(0, 1fr); }
  .studio-sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(19rem, calc(100vw - 3.5rem));
    box-shadow: var(--shadow-lg);
    transform: translateX(-105%);
    transition: transform var(--duration-normal) var(--ease-standard);
  }
  .studio-app-shell.is-sidebar-open .studio-sidebar { transform: translateX(0); }
  .studio-sidebar__close,
  .studio-mobile-menu { display: grid; }
  .studio-sidebar-overlay { position: fixed; z-index: var(--z-header); inset: 0; display: block; border: 0; background: var(--color-overlay); opacity: 0; pointer-events: none; transition: opacity var(--duration-normal) var(--ease-standard); }
  .studio-app-shell.is-sidebar-open .studio-sidebar-overlay { opacity: 1; pointer-events: auto; }
}

@media (max-width: 47rem) {
  .studio-app-header { min-height: 5.75rem; padding: var(--space-4); }
  .studio-app-header__actions { gap: var(--space-2); }
  .studio-session-indicator { display: none; }
  .studio-app-main { height: calc(100dvh - 5.75rem); padding: var(--space-7) var(--space-4) var(--space-12); }
  .studio-breadcrumb > span:first-child,
  .studio-breadcrumb i { display: none; }
  .studio-profile-page-card { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .studio-sidebar,
  .studio-sidebar-overlay { transition: none; }
  .studio-app-main { scroll-behavior: auto; }
}