/* ================= ROOT ================= */
:root {
  --bg-dark: #070a0f;
  --bg-panel: #0e1623;
  --bg-panel-2: #111b2e;

  --green: #16c784;
  --green-glow: rgba(22,199,132,0.45);

  --red: #ea3943;
  --red-glow: rgba(234,57,67,0.45);

  --border: rgba(255,255,255,0.08);
  --text-dim: #9aa4b2;
}

/* ================= RESET ================= */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", system-ui, sans-serif;
}

/* ================= BODY ================= */
body {
  min-height: 100vh;
  color: white;
  background:
    radial-gradient(circle at 25% 30%, rgba(22,199,132,0.18), transparent 40%),
    radial-gradient(circle at 75% 70%, rgba(234,57,67,0.18), transparent 40%),
    linear-gradient(145deg, #05070c, #0b1220 60%, #05070c);
  background-size: cover; /* No movement */
  animation: bgPulse 4s ease-in-out infinite alternate;
}

@keyframes bgPulse {
  0% { filter: brightness(0.97); }
  100% { filter: brightness(1.03); }
}

/* ================= HEADER ================= */
header {
  padding: 32px 48px;
  border-bottom: 1px solid var(--border);
  animation: slideDown 0.8s ease forwards;
}

header h1 {
  font-size: 2.8rem;
  background: linear-gradient(90deg, var(--green), var(--red));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

header h2 {
  margin-top: 6px;
  font-weight: 400;
  color: var(--text-dim);
}

/* ================= MAIN LAYOUT ================= */
main {
  padding: 36px;
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 32px;
}

/* ================= PANELS ================= */
section {
  background: linear-gradient(180deg, var(--bg-panel), var(--bg-panel-2));
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  backdrop-filter: blur(16px);
  animation: fadeUp 0.8s ease forwards;
}

/* ================= INPUT AREA ================= */
#input_sec {
  display: grid;
  gap: 14px;
  margin-top: 16px;
}

/* ================= INPUTS ================= */
input[type="number"] {
  background: #0a1020;
  border: 1px solid var(--border);
  color: white;
  padding: 12px 14px;
  border-radius: 10px;
  transition: all 0.25s ease;
}

input[type="number"]:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 14px var(--green-glow);
  transform: translateY(-2px);
}

/* ================= RADIO / CHECK ================= */
label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.3s ease;
}

label:hover {
  color: var(--green);
}

input[type="radio"],
input[type="checkbox"] {
  accent-color: var(--green);
  transform: scale(1.15);
}

/* ================= GENERATE BUTTON ================= */
#generate_data {
  margin-top: 18px;
  padding: 16px;
  border-radius: 14px;
  border: none;
  font-weight: 700;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, var(--green), var(--red));
  color: #000;
  cursor: pointer;
  animation: energyPulse 3s ease-in-out infinite;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#generate_data:hover {
  transform: translateY(-4px) scale(1.05);
  box-shadow:
    0 0 30px var(--green-glow),
    0 0 30px var(--red-glow);
}

@keyframes energyPulse {
  0%,100% { filter: brightness(1); }
  50% { filter: brightness(1.25); }
}

/* ================= DATA OUTPUT ================= */
#data {
  margin-top: 16px;
  padding: 14px;
  height: 120px;
  overflow-y: auto;
  overflow-x: hidden;

  white-space: pre-wrap;
  word-break: break-word;

  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  line-height: 1.4;

  background: #05070c;
  border: 1px solid var(--border);
  border-radius: 12px;

  color: var(--text-dim);
  box-shadow: inset 0 0 12px rgba(0,0,0,0.6);
}

/* ================= VISUALIZATION ================= */
#visualization {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ================= CANVAS ================= */
canvas {
  width: 100%;
  max-width: 1200px;
  border-radius: 20px;
  background:
    radial-gradient(circle at center, rgba(255,255,255,0.04), transparent),
    #05070c;
  box-shadow:
    inset 0 0 0 1px rgba(255,255,255,0.05),
    0 0 50px var(--green-glow),
    0 0 50px var(--red-glow);
  animation: canvasFloat 6s ease-in-out infinite;
}

@keyframes canvasFloat {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

/* ================= ANIMATIONS ================= */
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}