:root {
    --primary-color: #FFA726;
    --text-color: #333333;
    --bg-color: #ffffff;
    --card-bg: #f9f9f9;
    --border-radius: 12px;
    --shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

body, html {
  margin: 0;
  padding: 0;
  width: 100%;
  overflow-x: hidden;
}

.gradio-container {
    background-color: var(--bg-color);
    max-width: 100% !important;
    font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
    color: var(--text-color);
    padding: 1.5em;
}

#top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 48px;
  padding: 0 20px;
  background-color: var(--bg-color);
  border-bottom: 1px solid #ddd;
  position: fixed;
  top: 0;
  left: 250px;
  right: 0;
  z-index: 1000;
  font-size: 1.2em;
  font-weight: bold;
}

#collapse-left, #dark-toggle {
  cursor: pointer;
  color: var(--text-color);
  user-select: none;
}

#collapse-left:hover,
#dark-toggle:hover {
  color: var(--primary-color);
}

#sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 250px;
  height: 100vh;
  background-color: #f7f7f7;
  padding: 20px;
  overflow-y: auto;
  border-right: 1px solid #ddd;
  z-index: 999;
  font-size: 0.95em;
  font-family: 'Segoe UI', sans-serif;
}

#sidebar h1, #sidebar h2, #sidebar h3 {
  font-size: 1.2em;
  margin-bottom: 1em;
  font-weight: 600;
  color: var(--primary-color);
}

.sidebar-btn {
  display: block;
  width: 100%;
  margin-bottom: 10px;
  padding: 10px 14px;
  text-align: left;
  border: none;
  background-color: #fff;
  color: var(--text-color);
  font-weight: 500;
  border-radius: 8px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
  transition: all 0.2s ease;
}

.sidebar-btn:hover {
  background-color: #ffe3c1;
}

.sidebar-btn.active {
  background-color: var(--primary-color);
  color: #fff;
  font-weight: bold;
  box-shadow: none;
}

#main-column {
  padding: 0;
}

.main-content {
  margin-left: 250px;
  padding: 0;
}

#module-wrapper {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
  border-radius: 8px;
  padding: 16px;
  background-color: white;
}

.gr-box {
  box-shadow: 0 1px 5px rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 20px;
  background-color: white;
}

/* Text Inputs */
.text_area {
  font-size: 16px;
  line-height: 1.6;
  font-family: Arial, sans-serif;
}

.high-contrast {
  color: white;
  background-color: black;
}

/* Dark Mode */
body.dark-mode {
  --bg-color: #1e1e1e;
  --text-color: #f0f0f0;
  --card-bg: #2a2a2a;
  --primary-color: #ffb74d;
}

body.dark-mode,
body.dark-mode .main-content,
body.dark-mode .gradio-container {
  background-color: var(--bg-color) !important;
  color: var(--text-color) !important;
}

body.dark-mode .gr-box,
body.dark-mode #module-wrapper {
  background-color: var(--card-bg);
  color: var(--text-color);
}

body.dark-mode textarea,
body.dark-mode input[type="text"],
body.dark-mode .gr-textbox textarea {
  background-color: var(--card-bg);
  color: var(--text-color);
  border: 1px solid #555;
}

body.dark-mode .gr-button {
  background-color: var(--primary-color);
  color: black;
  border: none;
}

body.dark-mode select,
body.dark-mode .gr-dropdown select,
body.dark-mode .gr-checkbox label {
  background-color: var(--card-bg);
  color: var(--text-color);
}

body.dark-mode .gr-audio,
body.dark-mode .gr-plot {
  background-color: var(--card-bg);
}

body.dark-mode #top-bar {
  background-color: var(--card-bg);
  border-color: #444;
}

#chat-input {
  width: 100%;
  position: relative;
  padding-right: 2.5em;
}

#chat-send-btn {
  position: absolute;
  right: 10px;
  top: 6px;
  background: none;
  border: none;
  font-size: 1.2em;
  box-shadow: none;
  z-index: 10;
  padding: 2px 6px;
  cursor: pointer;
}

/* Plot responsiveness */
.gr-plot, .gr-plot canvas {
  width: 100% !important;
  height: auto !important;
}

/* Brand Header */
#brand-header {
  text-align: center;
  margin-bottom: 1.5em;
}

#brand-header h1 {
  font-size: 1.6em;
  margin: 0;
  color: var(--primary-color);
  font-weight: 700;
  font-family: 'Segoe UI', 'Helvetica Neue', sans-serif;
  letter-spacing: 0.5px;
}

#brand-header img {
  border-radius: 50%;
  box-shadow: var(--shadow);
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0px); }
}