@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;600;700&display=swap");

:root {
  /* Paleta "High-Tech Red" */
  --primary-glow: #ff1744; /* Vermelho vibrante */
  --secondary-glow: #ffffff; /* Branco */
  --background-start: #121212; /* Cinza muito escuro */
  --background-end: #000000; /* Preto */
  --font-color: #f5f5f5; /* Branco suave */
  --font-color-dark: #b3b3b3; /* Cinza claro */
  --glass-bg: rgba(25, 25, 25, 0.3); /* Fundo de vidro escuro */
  --glass-border: rgba(255, 23, 68, 0.2); /* Borda de vidro vermelha */
  --shadow: rgba(0, 0, 0, 0.4);
  --blur-intensity: 8px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(
    135deg,
    var(--background-start),
    var(--background-end)
  );
  color: var(--font-color);
  line-height: 1.6;
  overflow-x: hidden;
}

#app {
  max-width: 1400px;
  margin: 0 auto;
  padding: 30px;
}

header {
  text-align: center;
  margin-bottom: 40px;
}

h1 {
  font-size: 3.5rem;
  font-weight: 700;
  background: linear-gradient(
    90deg,
    var(--primary-glow),
    var(--secondary-glow)
  );
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 15px rgba(255, 23, 68, 0.5);
}

main {
  display: grid;
  grid-template-columns: 320px 1fr;
  grid-template-rows: auto 1fr;
  gap: 30px;
}

/* Estilo "Glassmorphism" para os painéis */
#controls,
#visualization-area,
#properties-panel,
.property-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 25px;
  box-shadow: 0 8px 32px 0 var(--shadow);
  transition: all 0.3s ease;
}

#controls:hover,
#visualization-area:hover,
#properties-panel:hover,
.property-card:hover {
  box-shadow: 0 8px 40px 0 rgba(0, 0, 0, 0.3);
  transform: translateY(-5px);
}

#controls {
  grid-column: 1;
  grid-row: 1 / span 2;
}

.control-group {
  margin-bottom: 30px;
}

.control-group h3,
#properties-panel h3,
.property-card-title {
  margin-bottom: 15px;
  color: var(--primary-glow);
  border-bottom: 1px solid var(--primary-glow);
  padding-bottom: 8px;
  font-weight: 600;
  text-shadow: 0 0 5px rgba(255, 23, 68, 0.5);
}

.btn-primary,
.btn-secondary {
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  margin-right: 10px;
  margin-bottom: 10px;
  transition: all 0.3s ease;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background-color: var(--primary-glow);
  color: var(--background-start);
  box-shadow: 0 0 10px var(--primary-glow);
}

.btn-primary:hover {
  background-color: #fff;
  color: var(--primary-glow);
  box-shadow: 0 0 20px var(--primary-glow);
}

.btn-secondary {
  background-color: transparent;
  color: var(--font-color);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background-color: var(--glass-bg);
  border-color: var(--primary-glow);
  color: var(--primary-glow);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  background-color: rgba(73, 80, 87, 0.5);
  box-shadow: none;
  color: #aaa;
  cursor: not-allowed;
  border-color: transparent;
}

/* Estilização para o input de ficheiro */
input[type="file"] {
  width: 100%;
  font-family: "Poppins", sans-serif;
  font-size: 14px;
}

/* Estiliza o BOTÃO DENTRO do input de ficheiro */
input[type="file"]::file-selector-button {
  /* Reutiliza os estilos do seu botão primário */
  background: var(--primary-glow);
  color: var(--background-end);
  border: none;
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-right: 15px; /* Adiciona espaço entre o botão e o nome do ficheiro */
}

input[type="file"]::file-selector-button:hover {
  opacity: 0.8;
  box-shadow: 0 0 15px rgba(255, 23, 68, 0.6);
}

/* Remove o botão customizado anterior se ainda existir */
.file-upload-btn {
  display: none; /* Esconde o input original */
}

select,
.property-control input {
  width: 100%;
  padding: 10px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  color: var(--font-color);
  font-family: "Poppins", sans-serif;
}

select:focus,
.property-control input:focus {
  outline: none;
  border-color: var(--primary-glow);
  box-shadow: 0 0 10px rgba(255, 23, 68, 0.5);
}

#visualization-area {
  grid-column: 2;
  grid-row: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

#audioCanvas {
  width: 100%;
  height: 300px;
  background: transparent;
  border-radius: 8px;
}

#audioInfo {
  margin-top: 20px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--font-color-dark);
}

#properties-panel {
  grid-column: 2;
  grid-row: 2;
}

#properties-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.property-card-title {
  color: var(--secondary-glow);
  border-bottom-color: var(--secondary-glow);
  text-shadow: none;
  font-size: 1.2rem;
}

.property-control {
  margin-bottom: 15px;
}

.property-control label {
  display: block;
  margin-bottom: 8px;
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--font-color-dark);
}

.property-control input[type="color"] {
  height: 45px;
  padding: 5px;
  cursor: pointer;
}

/* Estilo para sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 5px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 5px;
  outline: none;
  padding: 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  background: var(--primary-glow);
  cursor: pointer;
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-glow);
}

input[type="range"]::-moz-range-thumb {
  width: 20px;
  height: 20px;
  background: var(--primary-glow);
  cursor: pointer;
  border-radius: 50%;
  box-shadow: 0 0 10px var(--primary-glow);
}

.range-wrapper {
  display: flex;
  align-items: center;
  gap: 15px;
}

.range-value {
  min-width: 45px;
  text-align: right;
  color: var(--primary-glow);
  font-weight: bold;
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(10, 1, 24, 0.5);
  backdrop-filter: blur(var(--blur-intensity));
  -webkit-backdrop-filter: blur(var(--blur-intensity));
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 30px;
  border-radius: 15px;
  width: 450px;
  max-width: 90%;
  position: relative;
  box-shadow: 0 8px 32px 0 var(--shadow);
}

.close {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 30px;
  font-weight: bold;
  cursor: pointer;
  color: var(--font-color-dark);
  transition: color 0.3s ease;
}

.close:hover {
  color: var(--secondary-glow);
}

.hidden {
  display: none;
}