:root {
  --bg: #0b0f19;
  --area: #070a12;
  --panel: #111725;
  --panel-2: #182032;
  --line: #243049;
  --line-2: #33415f;
  --text: #e7eaf0;
  --muted: #8d97ab;
  --accent: #f5a524;
  --accent-ink: #1d1404;
  --sel: #3b82f6;
  --danger: #f26363;
  --radius: 9px;
  --ar: 1.7778;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body { height: 100%; margin: 0; }

body {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.ico { width: 18px; height: 18px; flex: none; }

/* ---------- barra superiore ---------- */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  padding: 8px 14px;
  padding-top: max(8px, env(safe-area-inset-top));
  padding-left: max(14px, env(safe-area-inset-left));
  padding-right: max(14px, env(safe-area-inset-right));
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 9px; margin-right: auto; font-weight: 650; letter-spacing: .01em; white-space: nowrap; }
.tb-group { display: flex; align-items: center; gap: 8px; }

.dur {
  display: flex;
  align-items: center;
  height: 38px;
  padding: 0 6px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: 650 21px/1 ui-monospace, "SF Mono", "Cascadia Mono", Consolas, monospace;
}
.dur:focus-within { border-color: var(--accent); }
.dur input {
  width: 2.4ch;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: center;
}
.dur .colon { opacity: .6; padding: 0 1px; }

/* ---------- bottoni ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  height: 38px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
  font-weight: 550;
  cursor: pointer;
  white-space: nowrap;
  transition: background .12s, border-color .12s;
}
.btn:hover { border-color: var(--line-2); background: #1e2840; }
.btn:focus-visible, .pbtn:focus-visible, .seg button:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.btn:disabled { opacity: .4; cursor: default; }
.btn.icon { width: 38px; padding: 0; }
.btn.sm { height: 30px; padding: 0 10px; font-size: 13px; }
.btn.primary { background: var(--accent); border-color: transparent; color: var(--accent-ink); font-weight: 650; min-width: 108px; }
.btn.primary:hover { background: #ffb53d; }
.btn.accent { background: #e7eaf0; border-color: transparent; color: #0b0f19; font-weight: 650; }
.btn.accent:hover { background: #fff; }
.btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn.ghost { background: transparent; color: var(--muted); }
.btn.ghost:hover { color: var(--text); }
.btn.tog.on { background: var(--accent); border-color: transparent; color: var(--accent-ink); }

.seg { display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.seg button {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 0;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
}
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--accent); color: var(--accent-ink); }

/* ---------- area di lavoro ---------- */
.workspace { flex: 1; display: flex; min-height: 0; }

.canvas-area {
  position: relative;
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  background:
    radial-gradient(circle at 1px 1px, #1a2236 1px, transparent 0) 0 0 / 22px 22px,
    var(--area);
  overflow: hidden;
}

.screen {
  position: relative;
  flex: none;
  background: #0b1020;
  box-shadow: 0 0 0 1px #ffffff14, 0 18px 50px #0009;
}
.bg-clip { position: absolute; inset: 0; overflow: hidden; pointer-events: none; }
.bg-img { position: absolute; inset: 0; background: center / cover no-repeat; }
.bg-layer { position: absolute; inset: 0; }

.stage { position: absolute; left: 0; top: 0; }

.drop-hint {
  position: absolute;
  inset: 12px;
  display: none;
  place-items: center;
  border: 2px dashed var(--accent);
  border-radius: 14px;
  background: #0b0f19cc;
  color: var(--accent);
  font-size: 18px;
  font-weight: 600;
  pointer-events: none;
}
.canvas-area.dragover .drop-hint { display: grid; }

/* ---------- oggetti sulla scena ---------- */
.obj {
  position: absolute;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  cursor: move;
}
.obj .box { position: absolute; inset: 0; pointer-events: none; }
.obj .content {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.obj .txt {
  white-space: pre;
  line-height: 1.15;
  outline: none;
  pointer-events: none;
}
.obj.timer .txt { font-variant-numeric: tabular-nums; letter-spacing: 0; }
.obj.shadow .txt { text-shadow: 0 .03em .12em rgba(0, 0, 0, .55); }
.obj.warn .txt { color: var(--warn) !important; }
.obj.flash .txt { animation: flash 1s ease-in-out infinite; }
@keyframes flash { 50% { opacity: .12; } }

.obj:hover { outline: 1px dashed #ffffff66; outline-offset: 0; }
.obj.selected { outline: 1.5px solid var(--sel); }
.obj.editing { cursor: text; outline: 1.5px dashed var(--accent); }
.obj.editing .content, .obj.editing .txt { pointer-events: auto; user-select: text; -webkit-user-select: text; }
.obj.editing .txt { cursor: text; caret-color: var(--accent); }

.h {
  position: absolute;
  display: none;
  width: 12px;
  height: 12px;
  margin: -6px 0 0 -6px;
  background: #fff;
  border: 1.5px solid var(--sel);
  border-radius: 3px;
  z-index: 2;
}
.obj.selected:not(.editing) .h { display: block; }
.h-nw { left: 0; top: 0; cursor: nwse-resize; }
.h-n { left: 50%; top: 0; cursor: ns-resize; }
.h-ne { left: 100%; top: 0; cursor: nesw-resize; }
.h-e { left: 100%; top: 50%; cursor: ew-resize; }
.h-se { left: 100%; top: 100%; cursor: nwse-resize; }
.h-s { left: 50%; top: 100%; cursor: ns-resize; }
.h-sw { left: 0; top: 100%; cursor: nesw-resize; }
.h-w { left: 0; top: 50%; cursor: ew-resize; }
@media (pointer: coarse) {
  .h { width: 22px; height: 22px; margin: -11px 0 0 -11px; border-radius: 50%; }
}

.guide { position: absolute; display: none; background: #ff3ea5; pointer-events: none; z-index: 9999; }
.guide.on { display: block; }
.gv { top: 0; bottom: 0; left: 50%; width: 1px; }
.gh { left: 0; right: 0; top: 50%; height: 1px; }

.measurer {
  position: absolute;
  left: -99999px;
  top: 0;
  visibility: hidden;
  white-space: pre;
  line-height: 1.15;
  font-size: 100px;
  pointer-events: none;
}
.measurer.tab { font-variant-numeric: tabular-nums; letter-spacing: 0; }

/* ---------- pannello laterale ---------- */
.panel {
  width: 330px;
  flex: none;
  overflow-y: auto;
  background: var(--panel);
  border-left: 1px solid var(--line);
  padding-bottom: env(safe-area-inset-bottom);
}
.sec { padding: 16px 18px; border-bottom: 1px solid var(--line); }
.sec-sel { background: #141c2d; }
.sec h3 {
  margin: 0 0 12px;
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.row { display: flex; align-items: center; gap: 8px; margin: 10px 0; }
.row.wrap { flex-wrap: wrap; }
.row.tight { margin: 0; gap: 6px; }

.field {
  display: grid;
  grid-template-columns: 104px 1fr 40px;
  align-items: center;
  gap: 8px;
  margin: 10px 0;
  min-height: 30px;
}
.field > span { color: var(--muted); }
.field > .row, .field > select { grid-column: 2 / 4; }
.field > .swatch { justify-self: start; }
.field output { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); font-size: 12.5px; }

.stack { display: grid; gap: 6px; margin-bottom: 10px; }
.stack > span { color: var(--muted); }

textarea, select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-2);
  color: var(--text);
  font: inherit;
}
textarea { padding: 8px 10px; resize: vertical; min-height: 56px; }
select { height: 36px; padding: 0 8px; }
.row select { flex: 1; }
textarea:focus, select:focus { outline: none; border-color: var(--accent); }

input[type="range"] { width: 100%; accent-color: var(--accent); }

.check { display: flex; align-items: center; gap: 8px; margin: 9px 0; cursor: pointer; user-select: none; }
.row .check { margin: 0; }
.check input { width: 17px; height: 17px; margin: 0; accent-color: var(--accent); }
.check.strong { font-weight: 600; }

.swatch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 36px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
}
.swatch input {
  position: absolute;
  inset: -8px;
  width: calc(100% + 16px);
  height: calc(100% + 16px);
  border: 0;
  padding: 0;
  cursor: pointer;
}

.box-opts { padding-left: 12px; margin-left: 8px; border-left: 2px solid var(--line); }
.box-opts.off { opacity: .4; pointer-events: none; }

.presets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.presets .btn { font-variant-numeric: tabular-nums; }

.hint { color: var(--muted); font-size: 12.5px; margin: 10px 0; }
.keys { margin: 0; padding: 0; list-style: none; color: var(--muted); font-size: 12.5px; display: grid; gap: 6px; }
kbd {
  display: inline-block;
  min-width: 20px;
  padding: 1px 5px;
  border: 1px solid var(--line-2);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--panel-2);
  color: var(--text);
  font: 11.5px/1.4 ui-monospace, Consolas, monospace;
  text-align: center;
}

/* ---------- barra presentazione ---------- */
.present-bar {
  position: fixed;
  left: 50%;
  bottom: max(22px, env(safe-area-inset-bottom));
  z-index: 50;
  display: none;
  align-items: center;
  gap: 6px;
  padding: 7px;
  border: 1px solid #ffffff1f;
  border-radius: 999px;
  background: #0b0f19d9;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 10px 30px #0008;
  transform: translateX(-50%);
  transition: opacity .3s, transform .3s;
}
.pbtn {
  display: grid;
  place-items: center;
  min-width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: 600 15px/1 system-ui, sans-serif;
  cursor: pointer;
}
.pbtn:hover { background: #ffffff1a; }
.pbtn.big { width: 56px; height: 56px; background: var(--accent); color: var(--accent-ink); }
.pbtn.big:hover { background: #ffb53d; }
.pbtn.big .ico { width: 24px; height: 24px; }
.present-bar .sep { width: 1px; height: 26px; background: #ffffff26; margin: 0 4px; }

/* ---------- modalità presentazione ---------- */
body.presenting .topbar,
body.presenting .panel { display: none; }
body.presenting .canvas-area {
  position: fixed;
  inset: 0;
  z-index: 10;
  width: auto;
  height: auto;
  padding: 0;
  background: #000;
}
body.presenting .screen { box-shadow: none; }
body.presenting .obj { cursor: default; outline: none; }
body.presenting .h,
body.presenting .guide { display: none !important; }
body.presenting .present-bar { display: flex; }
body.presenting.ui-hidden { cursor: none; }
body.presenting.ui-hidden .present-bar { opacity: 0; pointer-events: none; transform: translate(-50%, 12px); }

/* ---------- toast ---------- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 100;
  max-width: calc(100% - 32px);
  padding: 10px 16px;
  border-radius: var(--radius);
  background: #e7eaf0;
  color: #0b0f19;
  font-weight: 550;
  box-shadow: 0 8px 24px #0008;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity .2s, transform .2s;
}
.toast.on { opacity: 1; transform: translate(-50%, 0); }

/* ---------- schermi piccoli ---------- */
@media (max-width: 860px) {
  body { overflow: auto; }
  body.presenting { overflow: hidden; }
  .workspace { flex-direction: column; flex: none; }
  .canvas-area {
    flex: none;
    height: min(62vh, calc((100vw - 24px) / var(--ar) + 24px));
    padding: 12px;
  }
  .panel { width: auto; border-left: 0; border-top: 1px solid var(--line); overflow: visible; }
  .hide-sm { display: none; }
  .brand span { display: none; }
  .btn.primary { min-width: 0; }
}