.vw-wrap { max-width: 1200px; margin: 0 auto; padding: 96px 16px 48px; color: var(--text-primary); box-sizing: border-box;
  --vw-accent: var(--color-primary, #6366f1); --vw-warn: var(--color-warning, #f59e0b); --vw-ok: #4ade80; }
:root[data-theme="light"] .vw-wrap { --vw-accent: #4f46e5; --vw-warn: #b45309; --vw-ok: #15803d; }
.vw-wrap *, .vw-wrap *::before, .vw-wrap *::after { box-sizing: border-box; }
.vw-wrap [hidden] { display: none !important; }
.vw-intro h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 8px; }
.vw-intro p { color: var(--text-secondary); margin: 0 0 16px; max-width: 70ch; }
.vw-file { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.vw-card { background: var(--bg-secondary); border: 1px solid var(--border-color); border-radius: 12px; padding: 16px; display: grid; gap: 12px; min-width: 0; align-content: start; }
.vw-card h2 { font-size: 1.05rem; margin: 0; }

/* empty state */
.vw-drop { justify-items: center; text-align: center; gap: 12px; padding: 40px 16px; border: 2px dashed var(--border-color); background: var(--bg-primary);
  transition: border-color .15s, background .15s; min-height: 280px; align-content: center; }
.vw-drop.is-over, .vw-stage.is-over { border-color: var(--vw-accent); background: color-mix(in srgb, var(--vw-accent) 10%, var(--bg-primary)); }
.vw-drop-icon { width: 52px; height: 52px; color: var(--vw-accent); }
.vw-drop .vw-drop-title { font-size: 1.2rem; }
@media (hover: none) { .vw-drop .vw-drop-title { display: none; } }
.vw-drop .vw-hint { max-width: 52ch; }

/* viewer layout: phone = stage then panels; wide = stage left (sticky), panels right */
.vw-grid { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; align-items: start; }
@media (min-width: 900px) {
  .vw-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 340px); }
  .vw-stagecard { position: sticky; top: 84px; }
}
.vw-stagecard { display: grid; gap: 8px; min-width: 0; }
.vw-side { display: grid; gap: 12px; min-width: 0; }
.vw-stage { position: relative; width: 100%; aspect-ratio: 1 / 1; max-height: 70vh; border-radius: 12px; overflow: hidden; border: 2px solid var(--border-color);
  background: var(--vw-backdrop, #1b1f27); }
@media (min-width: 600px) { .vw-stage { aspect-ratio: 4 / 3; } }
@media (min-width: 900px) { .vw-stage { aspect-ratio: auto; height: min(72vh, 720px); max-height: none; } }
.vw-canvas { display: block; width: 100%; height: 100%; touch-action: none; outline: none; }
.vw-stage:has(.vw-canvas:focus-visible) { border-color: var(--vw-accent); }
.vw-views { position: absolute; left: 8px; right: 8px; top: 8px; display: flex; flex-wrap: wrap; gap: 6px; pointer-events: none; }
.vw-chip { pointer-events: auto; border: 1px solid rgba(127, 127, 140, .35); background: color-mix(in srgb, var(--bg-secondary) 88%, transparent); color: var(--text-primary);
  border-radius: 999px; padding: 6px 12px; min-height: 36px; font: inherit; font-size: 0.85rem; font-weight: 600; cursor: pointer; backdrop-filter: blur(4px); }
.vw-chip:hover { border-color: var(--vw-accent); }
.vw-chip:focus-visible { outline: 2px solid var(--vw-accent); outline-offset: 2px; }
.vw-busy { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; gap: 10px; font-weight: 700;
  background: color-mix(in srgb, var(--bg-primary) 70%, transparent); }
.vw-spin { width: 22px; height: 22px; border-radius: 50%; border: 3px solid var(--border-color); border-top-color: var(--vw-accent); animation: vw-spin 0.8s linear infinite; }
@keyframes vw-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .vw-spin { animation: none; } }
.vw-notices { display: grid; gap: 6px; }
.vw-notices:empty { display: none; }
.vw-notice { margin: 0; padding: 8px 12px; border-radius: 10px; border: 1px solid color-mix(in srgb, var(--vw-warn) 55%, transparent);
  background: color-mix(in srgb, var(--vw-warn) 10%, var(--bg-secondary)); font-weight: 600; overflow-wrap: anywhere; }

/* info */
.vw-name { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.vw-info { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 12px; margin: 0; }
.vw-info div { min-width: 0; }
.vw-info .vw-info-wide { grid-column: 1 / -1; }
.vw-info dt { color: var(--text-secondary); font-size: 0.8rem; }
.vw-info dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }

/* fields */
.vw-field { display: grid; gap: 6px; min-width: 0; }
.vw-label { font-weight: 600; font-size: 0.95rem; }
.vw-input { width: 100%; max-width: 100%; min-width: 0; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--border-color);
  background: var(--bg-primary); color: var(--text-primary); font: inherit; min-height: 44px; }
.vw-input--narrow { width: auto; flex: 0 0 auto; }
.vw-input:focus-visible { outline: 2px solid var(--vw-accent); outline-offset: 1px; }
.vw-checks { display: flex; flex-wrap: wrap; gap: 0 18px; }
.vw-check { display: flex; align-items: center; gap: 8px; font-weight: 600; cursor: pointer; min-height: 44px; }
.vw-check input { width: 20px; height: 20px; accent-color: var(--vw-accent); margin: 0; flex: 0 0 auto; }
.vw-seg { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border-color); border-radius: 10px; overflow: hidden; background: var(--bg-primary); }
.vw-seg--2 { grid-template-columns: repeat(2, 1fr); }
.vw-seg button { border: 0; background: transparent; color: var(--text-primary); font: inherit; font-weight: 600; padding: 8px 6px; cursor: pointer; min-height: 44px; }
.vw-seg button + button { border-left: 1px solid var(--border-color); }
.vw-seg button[aria-pressed="true"] { background: var(--vw-accent); color: #fff; }
.vw-seg button:focus-visible { outline: 2px solid var(--vw-accent); outline-offset: -3px; box-shadow: inset 0 0 0 4px var(--bg-primary); }
.vw-animrow { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.vw-hint { color: var(--text-secondary); font-size: 0.88rem; margin: 0; overflow-wrap: anywhere; }
.vw-hint:empty { display: none; }
.vw-center { text-align: center; }
.vw-msg { margin: 0; font-weight: 600; color: var(--vw-warn); overflow-wrap: anywhere; }
.vw-msg:empty { display: none; }
.vw-privacy { margin: 0; padding: 10px 12px; border-radius: 10px; font-size: 0.9rem; border: 1px solid var(--border-color); background: var(--bg-primary); color: var(--text-secondary);
  display: flex; gap: 8px; align-items: flex-start; }
.vw-privacy::before { content: "\2713"; flex: 0 0 auto; color: var(--vw-ok); font-weight: 800; }
.vw-actrow { display: flex; flex-wrap: wrap; gap: 8px; }

/* buttons (own classes; never .nav-cta) */
.vw-btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid var(--border-color); background: var(--bg-primary);
  color: var(--text-primary); border-radius: 10px; padding: 9px 16px; cursor: pointer; font: inherit; font-weight: 600; text-decoration: none; line-height: 1.2; min-height: 44px; }
.vw-btn:hover:not(:disabled) { border-color: var(--vw-accent); }
.vw-btn--primary { background: var(--vw-accent); border-color: var(--vw-accent); color: #fff; }
.vw-btn--primary:hover:not(:disabled) { background: var(--color-primary-active, #4f46e5); color: #fff; }
.vw-btn--quiet { background: transparent; color: var(--text-secondary); }
.vw-btn:disabled { opacity: 0.45; cursor: not-allowed; }
.vw-btn:focus-visible { outline: 2px solid var(--vw-accent); outline-offset: 2px; }
.vw-card > .vw-btn { justify-self: start; }
.vw-drop > .vw-btn { justify-self: center; }
@media (max-width: 480px) {
  .vw-card > .vw-btn, .vw-actrow .vw-btn { flex: 1 1 auto; }
  .vw-card > .vw-btn { justify-self: stretch; }
}

.img-foot { text-align: center; padding: 24px 16px; font-size: 0.875rem; }
.img-foot a { color: var(--text-secondary); }
.vw-lic { margin: 8px auto 0; max-width: 60ch; color: var(--text-secondary); font-size: 0.8rem; overflow-wrap: anywhere; }
.vw-sr { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
[tabindex="-1"]:focus { outline: none; }

/* measure + section */
.vw-btn--toggle[aria-pressed="true"] { background: var(--vw-accent); border-color: var(--vw-accent); color: #fff; }
.vw-measure-out { margin: 0; font-size: 1.35rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.vw-measure-out:empty { display: none; }
.vw-stage.is-measuring .vw-canvas { cursor: crosshair; }
.vw-mlabel { position: absolute; left: 0; top: 0; transform: translate(-50%, -50%); pointer-events: none; white-space: nowrap;
  padding: 4px 10px; border-radius: 999px; background: var(--vw-accent); color: #fff; font-weight: 800; font-size: 0.9rem;
  font-variant-numeric: tabular-nums; box-shadow: 0 1px 4px rgba(0, 0, 0, .35); }
.vw-rangerow { display: flex; align-items: center; gap: 10px; min-width: 0; }
.vw-range { flex: 1 1 auto; min-width: 0; min-height: 44px; accent-color: var(--vw-accent); margin: 0; }
.vw-rangerow .vw-pct { flex: 0 0 4ch; text-align: right; font-weight: 700; font-variant-numeric: tabular-nums; }
.vw-range:focus-visible { outline: 2px solid var(--vw-accent); outline-offset: 2px; }
#vwSectionCtl > .vw-btn { justify-self: start; }