*, *::before, *::after { box-sizing: border-box; }

/* `[hidden]` из UA-стилей часто перекрывается классами с display: flex/grid.
   Возвращаем приоритет атрибуту, чтобы `el.hidden = true` действительно прятал элемент. */
[hidden] { display: none !important; }

/* Global smoothness — applies to any element that doesn't define its own transition */
*, *::before, *::after {
  transition-property: background-color, color, border-color, box-shadow, fill, stroke, opacity, transform;
  transition-duration: 0.6s;
  transition-timing-function: ease;
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; }
}
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3, h4, p { margin: 0; }
a { color: var(--mint-600); text-decoration: none; }
a:hover { color: var(--mint-700); }
button { font: inherit; cursor: pointer; }
img, svg { display: block; max-width: 100%; }
input, textarea, select, button { font-family: inherit; }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: var(--r-sm); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 18px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.01em;
  transition: background 0.6s ease, color 0.6s ease, border-color 0.6s ease, transform 0.6s ease;
  user-select: none;
}
.btn:active { transform: translateY(1px); }
/* Без этого hidden-атрибут не работает — .btn ставит display: inline-flex */
.btn[hidden] { display: none; }
.btn:disabled,
.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  filter: grayscale(0.4);
}
.btn--primary {
  background: var(--mint-500);
  color: #fff;
  border-color: var(--mint-500);
}
.btn--primary:hover {
  background: transparent;
  color: var(--orange-600);
  border-color: var(--orange-500);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.35);
}
.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn--ghost:hover { background: var(--mint-50); border-color: var(--mint-300); color: var(--mint-700); }
.btn--danger {
  background: transparent;
  color: #b91c1c;
  border-color: #fecaca;
}
.btn--danger:hover {
  background: #fef2f2;
  border-color: #f87171;
  color: #991b1b;
}
.btn--block { width: 100%; }

/* Form */
.field { display: flex; flex-direction: column; gap: 6px; }
.field__label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-soft);
}
.field__input {
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--r-md);
  font-size: 15px;
  color: var(--text);
  transition: border-color 0.6s ease, box-shadow 0.6s ease;
}
.field__input::placeholder { color: var(--text-mute); }
.field__input:hover { border-color: var(--border-strong); }
.field__input:focus { border-color: var(--mint-400); box-shadow: var(--ring); outline: none; }
.field__input[aria-invalid="true"] { border-color: var(--danger); box-shadow: 0 0 0 4px rgba(229,72,77,0.12); }
.field__hint { font-size: 12px; color: var(--text-mute); }
.field__error { font-size: 12px; color: var(--danger); min-height: 14px; }

.checkbox {
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--text-soft);
  cursor: pointer;
}
.checkbox input { accent-color: var(--mint-500); width: 16px; height: 16px; margin-top: 2px; }

/* Divider */
.divider {
  display: flex; align-items: center; gap: 12px;
  color: var(--text-mute); font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em;
}
.divider::before, .divider::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}