:root {
  --bg: #0f0f12;
  --card: #18181d;
  --line: #2a2a33;
  --text: #f4f4f6;
  --muted: #a1a1ad;
  --accent-a: #ff6a3d;
  --accent-b: #c13584;
  --accent: linear-gradient(135deg, var(--accent-a), var(--accent-b));
  --ok: #3ddc97;
  --warn: #ffc857;
  --error: #ff6b6b;
  --radius: 16px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; }

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.app {
  flex: 1;
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: max(20px, env(safe-area-inset-top)) 16px 24px;
}

.top { text-align: center; margin-bottom: 20px; }

h1 {
  margin: 0 0 8px;
  font-size: clamp(1.6rem, 5vw, 2.2rem);
  letter-spacing: -0.02em;
}

.accent {
  background: var(--accent);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { margin: 0 auto; max-width: 560px; color: var(--muted); }

/* ---------- escolher imagem ---------- */

.pick { display: flex; justify-content: center; }

.dropzone {
  width: 100%;
  max-width: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 48px 20px;
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  background: var(--card);
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}

.dropzone:hover, .dropzone.over { border-color: var(--accent-a); background: #1e1e24; }

.dropzone:focus-within { outline: 2px solid var(--accent-a); outline-offset: 2px; }

.dropzone .icon { width: 44px; height: 44px; color: var(--accent-a); margin-bottom: 4px; }

.dropzone strong { font-size: 1.15rem; }

.dropzone span { color: var(--muted); font-size: .9rem; }

/* ---------- editar ---------- */

.edit {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.stage { display: flex; justify-content: center; width: 100%; }

#canvas {
  display: block;
  height: min(62dvh, calc((100vw - 32px) * 16 / 9));
  aspect-ratio: 9 / 16;
  max-width: 100%;
  border-radius: 12px;
  background: #000;
  box-shadow: 0 0 0 1px var(--line), 0 12px 40px rgba(0, 0, 0, .45);
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

#canvas:active { cursor: grabbing; }

#canvas:focus-visible { outline: 2px solid var(--accent-a); outline-offset: 3px; }

.panel {
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.hint { margin: 0; color: var(--muted); font-size: .92rem; }

.zoom { display: flex; align-items: center; gap: 12px; }

.zoom span { color: var(--muted); font-size: .9rem; min-width: 42px; }

.zoom input { flex: 1; accent-color: var(--accent-a); height: 28px; }

.row { display: flex; gap: 10px; }

.row .btn { flex: 1; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 0;
  border-radius: 12px;
  font: inherit;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  transition: transform .06s, opacity .15s, background .15s;
}

.btn:active { transform: scale(.98); }

.btn:disabled { opacity: .6; cursor: progress; }

.btn:focus-visible { outline: 2px solid var(--text); outline-offset: 2px; }

.btn.primary { background: var(--accent); color: #fff; }

.btn.secondary { background: #26262e; }

.btn.ghost { background: transparent; box-shadow: inset 0 0 0 1px var(--line); }

.btn.ghost:hover { background: #1e1e24; }

.warn {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(255, 200, 87, .1);
  color: var(--warn);
  font-size: .9rem;
}

.done {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 14px;
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: inset 0 0 0 1px var(--line);
}

.ok { margin: 0; color: var(--ok); font-weight: 700; }

.meta { margin: 0; color: var(--muted); font-size: .9rem; }

.small { margin: 0; color: var(--muted); font-size: .8rem; }

.error {
  max-width: 520px;
  margin: 16px auto 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(255, 107, 107, .12);
  color: var(--error);
  text-align: center;
}

.foot {
  padding: 16px 16px max(16px, env(safe-area-inset-bottom));
  text-align: center;
  color: var(--muted);
  font-size: .8rem;
}

[hidden] { display: none !important; }

/* textos que dependem do tipo de tela */
.touch-only { display: none; }
@media (hover: none) and (pointer: coarse) {
  .touch-only { display: inline; }
  .mouse-only { display: none; }
}

@media (min-width: 820px) {
  .edit {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    gap: 36px;
  }

  .stage { width: auto; }

  #canvas { height: clamp(420px, calc(100dvh - 200px), 760px); }

  .panel { padding-top: 8px; }
}