/* Базовый стиль для всех кнопок */
.btn {
  display: inline-block;
  font-family: inherit;
  font-weight: 600;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  border: none;
  border-radius: 0.5rem;     /* 8px */
  transition: box-shadow 0.2s, background-color 0.2s, color 0.2s;
  outline: none;
}

/* Размеры */
.btn-sm {
  font-size: 0.875rem;        /* 14px */
  padding: 0.375rem 0.75rem;  /* 6px 12px */
}
.btn-md {
  font-size: 1rem;            /* 16px */
  padding: 0.5rem 1rem;       /* 8px 16px */
}
.btn-lg {
  font-size: 1.125rem;        /* 18px */
  padding: 0.75rem 1.5rem;    /* 12px 24px */
}

/* Primary */
.btn-primary {
  background-color: #4f46e5;  /* indigo-600 */
  color: #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.btn-primary:hover {
  background-color: #4338ca;  /* indigo-700 */
}
.btn-primary:focus {
  box-shadow: 0 0 0 3px rgba(99,102,241,0.5); /* indigo-500 at 50% */
}

/* Secondary (outline) */
.btn-secondary {
  background-color: transparent;
  color: #4f46e5;
  border: 2px solid #4f46e5;
}
.btn-secondary:hover {
  background-color: rgba(79,70,229,0.1);
}
.btn-secondary:focus {
  box-shadow: 0 0 0 3px rgba(99,102,241,0.5);
}

/* Dark (footer и пр.) */
.btn-dark {
  background-color: #1f2937;  /* gray-800 */
  color: #f9fafb;             /* gray-50 */
}
.btn-dark:hover {
  background-color: #374151;  /* gray-700 */
}
.btn-dark:focus {
  box-shadow: 0 0 0 3px rgba(55,65,81,0.5);
}

/* Accent (special, например Accept cookies) */
.btn-accent {
  background-color: #fbbf24;  /* yellow-400 */
  color: #1f2937;             /* gray-800 */
}
.btn-accent:hover {
  background-color: #f59e0b;  /* yellow-500 */
}
.btn-accent:focus {
  box-shadow: 0 0 0 3px rgba(251,191,36,0.5);
}

/* Иконки внутри кнопок */
.btn i {
  vertical-align: middle;
  margin-right: 0.5em;
}
body { font-family: 'Inter', sans-serif; font-size: 17px; }
    h1, h2, h3 { font-family: 'Nunito', sans-serif; }