* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  display: flex;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
}

#menuToggle {
  display: none;
  position: fixed;
  top: 10px;
  left: 10px;
  background: #333;
  color: white;
  border: 0;
  border-radius: 4px;
  padding: 10px 15px;
  font-size: 18px;
  cursor: pointer;
  z-index: 1001;
}

aside {
  width: 280px;
  flex-shrink: 0;
  background: #f4f4f4;
  padding: 20px;
  border-right: 1px solid #ccc;
  overflow-y: auto;
  transition: transform 0.3s ease;
}

main {
  flex: 1;
  min-width: 0;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

main h2 {
  margin-top: 0;
}

.controles {
  width: 100%;
  max-width: 560px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
}

.controles input[type="text"] {
  padding: 10px;
  font-size: 16px; /* 16px evita o zoom automático do iPhone */
}

.ajustes-nome {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  font-size: 14px;
}

.ajustes-nome label {
  display: flex;
  align-items: center;
  gap: 6px;
}

button,
.botao-arquivo {
  padding: 10px 14px;
  font-size: 15px;
  border: 1px solid #999;
  border-radius: 4px;
  background: #fff;
  cursor: pointer;
}

button.principal {
  background: #333;
  color: #fff;
  border-color: #333;
}

.botao-arquivo {
  position: relative;
  display: block;
  text-align: center;
}

/* O input fica invisível; quem recebe o toque é o rótulo. */
.botao-arquivo input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

canvas {
  display: block;
  flex-shrink: 0;
  width: auto;
  height: auto;
  max-width: 100%;
  /* Cabe inteiro abaixo dos controles, sem precisar rolar. */
  max-height: max(320px, calc(100vh - 300px));
  max-height: max(320px, calc(100dvh - 300px));
  border: 1px solid #ccc;
  touch-action: none;
  cursor: grab;
}

canvas.arrastando {
  cursor: grabbing;
}

.dica {
  font-size: 13px;
  color: #666;
  text-align: center;
}

.aviso {
  color: #b00020;
  font-size: 13px;
  margin: 8px 0;
}

.aviso:empty {
  display: none;
}

[hidden] {
  display: none !important;
}

button.link {
  padding: 0;
  border: 0;
  background: none;
  color: #1a56db;
  text-decoration: underline;
  font-size: 14px;
}

#painelAdmin {
  margin-bottom: 14px;
}

/* Tela de entrar */
body.pagina-login {
  align-items: center;
  justify-content: center;
  background: #f4f4f4;
  padding: 16px;
}

.cartao-login {
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 28px 24px;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 6px;
}

.cartao-login h1 {
  margin: 0 0 8px;
  font-size: 22px;
  text-align: center;
}

.cartao-login input {
  padding: 10px;
  font-size: 16px; /* 16px evita o zoom automático do iPhone */
  border: 1px solid #999;
  border-radius: 4px;
}

.usuario {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin: 0 0 10px;
  font-size: 13px;
  color: #444;
  overflow-wrap: anywhere;
}

#molduraList {
  margin-top: 14px;
}

.moldura-btn {
  margin-bottom: 10px;
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 4px;
}

.moldura-btn.ativa {
  border-color: #333;
  background: #fff;
}

.moldura-btn img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  flex-shrink: 0;
  background: repeating-conic-gradient(#ddd 0 25%, #fff 0 50%) 0 0 / 10px 10px;
}

.moldura-btn span {
  flex: 1;
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: 14px;
}

.moldura-btn button {
  padding: 6px 10px;
  font-size: 14px;
}

@media (max-width: 768px) {
  body {
    flex-direction: column;
  }

  #menuToggle {
    display: block;
  }

  aside {
    position: fixed;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    padding-top: 64px;
    transform: translateX(0);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.2);
  }

  aside.hidden {
    transform: translateX(-110%);
  }

  main {
    padding: 64px 12px 20px;
  }
}