@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap');

:root {
  --bg-color: #1a1a1a;
  --panel-bg-color: #252526;
  --text-color: #e0e0e0;
  --primary-color: #007acc;
  --primary-hover-color: #005a99;
  --border-color: #3c3c3c;
  --input-bg-color: #333333;
  --disabled-color: #555555;
}

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

html,
body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
}

h1,
h2,
h3 {
  font-weight: 600;
}

/* Main App Layout */
.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
}

/* Main Viewport for Canvas */
.viewport {
  flex-grow: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 1rem;
  overflow: hidden;
}

#landscape-canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border: 1px solid var(--border-color);
  background-color: #000;
  image-rendering: pixelated; /* For a crisp pixel look */
}

/* Controls Panel Sidebar */
.controls-panel {
  width: 320px;
  flex-shrink: 0;
  background-color: var(--panel-bg-color);
  padding: 1.5rem;
  overflow-y: auto;
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.controls-panel-header {
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.controls-panel-header h1 {
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.controls-panel-header p {
  font-size: 0.9rem;
  color: #a0a0a0;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.control-group h3 {
  margin-bottom: 0;
  font-size: 1.1rem;
}

/* Form Elements Styling */
label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: #cccccc;
}

label span:last-child {
  font-weight: 600;
  color: var(--text-color);
}

input[type='text'],
select {
  width: 100%;
  padding: 0.6rem;
  background-color: var(--input-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-color);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type='text']:focus,
select:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(0, 122, 204, 0.5);
}

.seed-control {
  display: flex;
  gap: 0.5rem;
}

.seed-control input[type='text'] {
  flex-grow: 1;
}

button {
  width: 100%;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 4px;
  background-color: var(--primary-color);
  color: white;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

button:hover {
  background-color: var(--primary-hover-color);
}

button:disabled {
  background-color: var(--disabled-color);
  cursor: not-allowed;
}

.seed-control button {
  padding: 0.5rem;
  min-width: 44px; /* for icon button */
  flex-shrink: 0;
  width: auto;
}

/* Custom Slider Styles */
input[type='range'] {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

input[type='range']:focus {
  outline: none;
}

input[type='range']::-webkit-slider-runnable-track {
  background: var(--input-bg-color);
  height: 6px;
  border-radius: 3px;
  border: 1px solid var(--border-color);
}

input[type='range']::-moz-range-track {
  background: var(--input-bg-color);
  height: 6px;
  border-radius: 3px;
  border: 1px solid var(--border-color);
}

input[type='range']::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  margin-top: -6px;
  background-color: var(--primary-color);
  height: 16px;
  width: 16px;
  border-radius: 50%;
  border: 2px solid var(--panel-bg-color);
  transition: transform 0.2s ease;
}

input[type='range']::-moz-range-thumb {
  border: none;
  background-color: var(--primary-color);
  height: 16px;
  width: 16px;
  border-radius: 50%;
  border: 2px solid var(--panel-bg-color);
  transition: transform 0.2s ease;
}

input[type='range']:active::-webkit-slider-thumb {
  transform: scale(1.2);
}

input[type='range']:active::-moz-range-thumb {
  transform: scale(1.2);
}

/* Responsiveness */
@media (max-width: 800px) {
  html,
  body {
    height: auto;
    overflow: auto;
  }

  .app-container {
    flex-direction: column-reverse;
    height: auto;
  }

  .controls-panel {
    width: 100%;
    border-left: none;
    border-top: 1px solid var(--border-color);
    max-height: none;
    overflow-y: visible;
  }

  .viewport {
    padding: 0.5rem;
    min-height: 60vh;
  }
}