:root {
  /* Color Variables */
  --color-dark: #121217;
  --color-medium: #2a2a35;
  --color-light: #f0f0f0;
  --color-accent: #00cc66; /* Bright Green */
  --color-shadow: rgba(0, 0, 0, 0.4);
  --color-glass-bg: rgba(255, 255, 255, 0.08);
}

/* 1. GLOBAL & BACKGROUND */
body {
  font-family: "Consolas", "Courier New", monospace;
  color: var(--color-light);
  background-color: var(--color-dark);
  margin: 0;
  padding: 20px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;

  /* Abstract Background Image with Dark Overlay */
  /* NOTE: You should provide a URL for a suitable abstract image here */
  /*background-image: url('https://picsum.photos/1920/1080?abstract');*/ /* Placeholder Abstract Image */
  background-image: url("../img/bg.jpg");
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
}

/* Main App Container for Centering and Glassmorphism */
.synth-container {
  width: 90%;
  max-width: 800px;
  padding: 30px;
  border-radius: 15px;
  box-shadow: 0 8px 32px 0 var(--color-shadow);

  /* Glassmorphism Effect */
  background: var(--color-glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* 2. TYPOGRAPHY & STATUS */
h1 {
  text-align: center;
  color: var(--color-accent);
  text-shadow: 0 0 5px var(--color-accent);
  margin-bottom: 25px;
}

#status {
  font-size: 1.1em;
  color: var(--color-accent);
  font-weight: bold;
  text-shadow: 0 0 3px rgba(0, 204, 102, 0.5);
}

#timer {
  color: #ff5555; /* Red for countdown/active recording */
}

/* 3. INPUTS & INFO */
textarea#textInput {
  width: 100%;
  height: 100px;
  padding: 15px;
  margin-bottom: 15px;
  border: 1px solid var(--color-accent);
  border-radius: 8px;
  resize: vertical;

  /* Dark input field with transparent background */
  background-color: rgba(42, 42, 53, 0.5); /* Semi-transparent dark medium */
  color: var(--color-light);
  font-family: "Consolas", monospace;
  font-size: 1em;
  box-shadow: inset 0 0 5px rgba(0, 204, 102, 0.2);
  transition: border-color 0.2s;
}

textarea#textInput:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
}

#sequenceInfo {
  margin-bottom: 20px;
  padding: 10px;
  background-color: var(--color-medium);
  border-left: 5px solid var(--color-accent);
  border-radius: 4px;
  font-size: 0.9em;
}

/* 4. BUTTONS (Green Accent) */
button {
  flex-grow: 1; /* Make buttons fill the space in the flex container */
  padding: 12px 20px;
  border: none;
  border-radius: 25px;
  font-weight: bold;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s ease;

  /* Green Accent Style */
  background-color: var(--color-accent);
  color: var(--color-dark);
  box-shadow: 0 4px 10px rgba(0, 204, 102, 0.4);
}

button:hover:not(:disabled) {
  background-color: #00e673; /* Slightly lighter green on hover */
  box-shadow: 0 6px 15px rgba(0, 204, 102, 0.6);
  transform: translateY(-2px);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  background-color: var(--color-medium);
  color: #888;
  cursor: not-allowed;
  box-shadow: none;
}

/* Specific button style for 'Stop Recording' */
button#recordButton.recording {
  background-color: #cc0000; /* Red for recording */
  box-shadow: 0 4px 10px rgba(204, 0, 0, 0.6);
  color: var(--color-light);
}
button#recordButton.recording:hover {
  background-color: #ff3333;
  box-shadow: 0 6px 15px rgba(204, 0, 0, 0.8);
}

/* 5. LAYOUT & HR */
hr {
  border: none;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.15); /* Light, transparent divider */
  margin: 20px 0;
  width: 100%;
}

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