:root {
  --bg-studio: #0c0d10;
  --bg-panel: #121318;
  --border-hairline: rgba(255, 255, 255, 0.09);
  --border-active: rgba(255, 255, 255, 0.38);
  --text-primary: #eceae4;
  --text-secondary: #9a9890;
  --text-muted: #585752;
  --accent-warm: #d8b888;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-serif: 'Cormorant Garamond', Georgia, serif;
  --font-mono: 'JetBrains Mono', monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { width: 100%; height: 100%; overflow: hidden; background: #f3ebe0; color: var(--text-primary); font-family: var(--font-sans); font-weight: 300; -webkit-font-smoothing: antialiased; user-select: none; }
button, input, select { font-family: inherit; color: inherit; background: none; border: none; outline: none; }
button { cursor: pointer; }
#stage { position: fixed; inset: 0; }
#art { width: 100%; height: 100%; display: block; }

.menu { position: fixed; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); right: calc(24px + env(safe-area-inset-right, 0px)); z-index: 40; opacity: 0; transform: translateY(6px); pointer-events: none; transition: opacity 0.35s cubic-bezier(0.16, 1, 0.3, 1), transform 0.35s cubic-bezier(0.16, 1, 0.3, 1); }
.menu.visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
.menu-box { display: flex; flex-direction: column; min-width: 164px; background: rgba(12, 13, 16, 0.88); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--border-hairline); }
.menu-action { padding: 12px 20px; text-align: right; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.2em; color: var(--text-secondary); border-bottom: 1px solid var(--border-hairline); transition: color 0.2s ease, background 0.2s ease; }
.menu-action:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.04); }
.primary { height: 48px; min-width: 164px; padding: 0 24px; display: flex; align-items: center; justify-content: flex-end; background: var(--text-primary); color: #08080a !important; font-family: var(--font-mono); font-size: 11px; font-weight: 500; letter-spacing: 0.24em; border: 1px solid var(--text-primary); transition: background 0.2s ease; }
.primary:hover { background: var(--accent-warm) !important; border-color: var(--accent-warm); }
.export-group { border-bottom: 1px solid var(--border-hairline); }
.export-group .menu-action { width: 100%; border-bottom: none; }
.submenu { display: none; grid-template-columns: repeat(2, 1fr); border-top: 1px solid var(--border-hairline); background: rgba(8, 8, 10, 0.9); }
.submenu.open { display: grid; }
.sub-action { padding: 10px 6px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--text-secondary); border-right: 1px solid var(--border-hairline); }
.sub-action:last-child { border-right: none; }
.sub-action:hover { color: var(--text-primary); background: rgba(255, 255, 255, 0.06); }

.studio { position: fixed; inset: 0; z-index: 100; background: var(--bg-studio); display: flex; flex-direction: column; opacity: 0; pointer-events: none; transition: opacity 0.45s cubic-bezier(0.16, 1, 0.3, 1); }
.studio.open { opacity: 1; pointer-events: auto; }
.studio-header { display: flex; align-items: center; justify-content: space-between; padding: 20px 32px; border-bottom: 1px solid var(--border-hairline); background: var(--bg-panel); }
.brand { display: flex; flex-direction: column; gap: 4px; }
.title { font-family: var(--font-serif); font-size: 20px; letter-spacing: 0.18em; }
.subtitle { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.22em; color: var(--text-muted); }
.header-actions { display: flex; gap: 16px; }
.text-btn { padding: 10px 16px; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; color: var(--text-secondary); border: 1px solid var(--border-hairline); }
.text-btn:hover { color: var(--text-primary); border-color: var(--border-active); }
.studio-body { flex: 1; display: grid; grid-template-columns: 320px 1fr; min-height: 0; }
.stack { border-right: 1px solid var(--border-hairline); overflow-y: auto; }
.stack-item { width: 100%; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; padding: 16px 24px; border-bottom: 1px solid var(--border-hairline); text-align: left; }
.stack-item.active { background: rgba(255, 255, 255, 0.05); box-shadow: inset 2px 0 0 var(--accent-warm); }
.stack-name { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; }
.stack-sub { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.18em; color: var(--text-muted); }
.inspector { overflow-y: auto; padding: 28px 40px 120px; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px 40px; align-content: start; }
.field { display: flex; flex-direction: column; gap: 10px; }
.field-head { display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.2em; color: var(--text-secondary); }
.field select { padding: 10px 12px; border: 1px solid var(--border-hairline); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; background: var(--bg-panel); }
.field input[type="range"] { width: 100%; accent-color: var(--accent-warm); }
.field input[type="color"] { width: 100%; height: 36px; border: 1px solid var(--border-hairline); padding: 2px; cursor: pointer; }
.field input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent-warm); }
.unveil { position: fixed; bottom: calc(24px + env(safe-area-inset-bottom, 0px)); right: calc(24px + env(safe-area-inset-right, 0px)); z-index: 120; box-shadow: 0 8px 28px rgba(0, 0, 0, 0.55); }
.toast { position: fixed; top: calc(24px + env(safe-area-inset-top, 0px)); left: 50%; transform: translate(-50%, -8px); z-index: 200; padding: 10px 18px; background: rgba(12, 13, 16, 0.9); border: 1px solid var(--border-hairline); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.2em; opacity: 0; pointer-events: none; transition: opacity 0.3s ease, transform 0.3s ease; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
@media (max-width: 760px) {
  .studio-body { grid-template-columns: 1fr; grid-template-rows: 200px 1fr; }
  .stack { border-right: none; border-bottom: 1px solid var(--border-hairline); }
  .inspector { padding: 20px 20px 120px; }
  .studio-header { padding: 16px 20px; }
}