/* Общие CSS-переменные */
:root {
  /* Цвета */
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --accent-primary: #4f46e5;

  /* Тени */
  --shadow-inset: inset 2px 2px 4px rgba(0, 0, 0, 0.2),
    inset -2px -2px 4px rgba(255, 255, 255, 0.05);
  --shadow-inset-hover: inset 3px 3px 6px rgba(0, 0, 0, 0.25),
    inset -3px -3px 6px rgba(255, 255, 255, 0.1);
  --shadow-inset-active: inset 4px 4px 8px rgba(0, 0, 0, 0.3),
    inset -4px -4px 8px rgba(255, 255, 255, 0.1);
  --shadow-neumorphism: 8px 8px 16px rgba(0, 0, 0, 0.3),
    -8px -8px 16px rgba(255, 255, 255, 0.05);
  --shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 255, 255, 0.08);

  /* Радиусы */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 50px;

  /* Отступы */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;

  /* Переходы */
  --transition: all 0.3s ease;
}

/* Утилитарные классы */
.card-base {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-inset);
  transition: var(--transition);
}

.card-base:hover {
  box-shadow: var(--shadow-inset-hover);
  background: var(--bg-primary);
}

.card-inset {
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-inset);
  transition: var(--transition);
}

.card-inset:hover {
  box-shadow: var(--shadow-inset-hover);
  background: var(--bg-secondary);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.text-primary {
  color: var(--text-primary);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-gradient {
  background: linear-gradient(
    135deg,
    var(--text-primary),
    var(--accent-primary)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.scrollbar-thin {
  scrollbar-width: thin;
  scrollbar-color: var(--bg-tertiary) transparent;
}

.scrollbar-thin::-webkit-scrollbar {
  height: 4px;
}

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

.scrollbar-thin::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 2px;
}