frontend/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

:root {
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --line-height: 1.6;
  --font-weight: 400;

  /* Neumorphic Dark Theme Palette */
  --bg-color: #21242b;
  /* distinct dark gray-blue */
  --text-main: #e0e5ec;
  --text-muted: #8b9bb4;

  --shadow-light: rgba(255, 255, 255, 0.06);
  --shadow-dark: rgba(0, 0, 0, 0.6);

  --accent-color: #3b82f6;
  /* Bright Blue */

  color-scheme: dark;
  color: var(--text-main);
  background-color: var(--bg-color);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  font-family: var(--font-family);
  background: var(--bg-color);
  /* Neumorphism needs solid flat bg */
  -webkit-font-smoothing: antialiased;
}

#root {
  width: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* --- Neumorphic Utilities --- */

/* 1. The Panel (Extruded) */
.neu-panel {
  background: var(--bg-color);
  border-radius: 20px;
  box-shadow:
    8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
  border: 1px solid rgba(255, 255, 255, 0.02);
}

/* 2. The Button (Extruded + Hover effect) */
.neu-btn {
  background: var(--bg-color);
  color: var(--accent-color);
  font-weight: 600;
  border: none;
  border-radius: 12px;
  box-shadow:
    5px 5px 10px var(--shadow-dark),
    -5px -5px 10px var(--shadow-light);
  transition: all 0.2s ease;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.neu-btn:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow:
    6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
  filter: brightness(1.2);
}

.neu-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow:
    inset 3px 3px 6px var(--shadow-dark),
    inset -3px -3px 6px var(--shadow-light);
}

.neu-btn-primary {
  background: var(--bg-color);
  color: var(--accent-color);
  font-weight: 700;
  border-radius: 16px;
  /* Extruded Soft UI Shadows */
  box-shadow:
    6px 6px 12px var(--shadow-dark),
    -6px -6px 12px var(--shadow-light);
  border: 1px solid rgba(255, 255, 255, 0.02);
  transition: all 0.2s ease-out;
}

.neu-btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  color: #60a5fa;
  /* Lighter blue on hover */
  box-shadow:
    8px 8px 16px var(--shadow-dark),
    -8px -8px 16px var(--shadow-light);
  text-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
  /* Glowing text */
}

.neu-btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow:
    inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
  color: var(--accent-color);
  text-shadow: none;
}

.neu-btn-primary:disabled {
  opacity: 0.5;
  box-shadow: none;
  cursor: not-allowed;
}

/* 3. The Input (Inset) */
.neu-input {
  background: var(--bg-color);
  color: var(--text-main);
  border-radius: 16px;
  border: none;
  box-shadow:
    inset 4px 4px 8px var(--shadow-dark),
    inset -4px -4px 8px var(--shadow-light);
  transition: all 0.3s ease;
}

.neu-input:focus {
  outline: none;
  box-shadow:
    inset 6px 6px 12px var(--shadow-dark),
    inset -6px -6px 12px var(--shadow-light),
    0 0 0 1px var(--accent-color);
}

/* 4. Tab Active State (Pressed) */
.neu-tab-active {
  box-shadow:
    inset 3px 3px 6px var(--shadow-dark),
    inset -3px -3px 6px var(--shadow-light);
  color: var(--accent-color);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: #393d47;
  border-radius: 4px;
}