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

:root {
  --bg-dark: #0c0e16;
  --bg-panel: #161825;
  --bg-accent: #1f2233;

  --text-light: #f2f3f7;
  --text-muted: #b4b7c5;

  --primary: #6c63ff;
  --primary-hover: #5750e6;

  --secondary: #3e4459;
  --secondary-hover: #353a4a;

  --accent: #00e0c7;
  --accent-hover: #00c9b0;
}

body {
  font-family: "Inter", "Segoe UI", Tahoma, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-light);
  line-height: 1.6;
  padding-bottom: 40px;
}

#app {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 35px;
}

/* botao lingua */
#englishBtn {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: var(--accent);
  color: var(--bg-dark);
  padding: 8px 14px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  transition: background-color 0.25s ease, transform 0.15s ease;
}

#englishBtn:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

h1 {
  color: var(--primary);
  font-size: 2.5rem;
  letter-spacing: 1px;
}

/* Layout */
main {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 25px;
}

/* Sidebar */
#controls {
  background-color: var(--bg-panel);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

.control-group {
  margin-bottom: 28px;
}

.control-group h3 {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 6px;
}

/* Buttons */
.btn-primary,
.btn-secondary {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  margin-right: 10px;
  margin-bottom: 10px;
  transition: background-color 0.25s ease, transform 0.15s ease;
}

.btn-primary {
  background-color: var(--primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--secondary);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--secondary-hover);
  transform: translateY(-2px);
}

.btn-primary:disabled,
.btn-secondary:disabled {
  background-color: #2a2d3a;
  cursor: not-allowed;
  transform: none;
}

/* Inputs */
input[type="file"],
select {
  width: 100%;
  padding: 10px;
  background-color: var(--bg-accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--text-light);
  font-size: 0.95rem;
  transition: border 0.25s ease;
}

input[type="file"]:hover,
select:hover {
  border-color: var(--accent-hover);
}

/* Visualization */
#visualization-area {
  background-color: var(--bg-panel);
  padding: 20px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

#audioCanvas {
  width: 100%;
  height: 455px;
  background-color: var(--bg-accent);
  border-radius: 6px;
}

#audioInfo {
  margin-top: 15px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  color: var(--text-muted);
}

/* Properties panel */
#properties-panel {
  background-color: var(--bg-panel);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0 20px rgba(0, 0, 0, 0.25);
}

.property-control {
  margin-bottom: 18px;
}

.property-control label {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-weight: 600;
}

.property-control input {
  width: 100%;
  padding: 8px;
  background-color: var(--bg-accent);
  border: 1px solid var(--accent);
  border-radius: 6px;
  color: var(--text-light);
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background-color: var(--bg-panel);
  padding: 25px;
  border-radius: 10px;
  width: 420px;
  max-width: 90%;
  position: relative;
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.3);
}

.close {
  position: absolute;
  top: 10px;
  right: 15px;
  font-size: 26px;
  cursor: pointer;
  color: var(--accent);
}

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

.hidden {
  display: none;
}