/* =============================================================
   forms.css — поля ввода, чекбоксы, радио, label, ошибки.
   Источник: UI Kit — 74:939 Password Field, 74:991 Surname Field,
   127:294 Checkbox, 97:1279 Number Field.
   ============================================================= */

/* ----- Контейнер поля ----- */
.field {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
}

.field--inline {
  flex-direction: row;
  align-items: center;
  gap: var(--space-10);
}

/* ----- Label ----- */
.label {
  font-size: var(--fs-16);
  font-weight: var(--fw-medium);
  color: var(--color-ink);
  line-height: 1.2;
}

.label--required::after {
  content: " *";
  color: var(--color-error);
}

.help {
  font-size: var(--fs-12);
  color: var(--color-ink-56);
  line-height: 1.4;
}

.error-text {
  font-size: var(--fs-12);
  color: var(--color-error);
  font-weight: var(--fw-medium);
  line-height: 1.4;
}

/* ----- Базовый input ----- */
.input,
.textarea,
.select {
  display: block;
  width: 100%;
  font-family: var(--font-sans);
  font-size: var(--fs-16);
  line-height: 1.25;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid var(--color-grey-200);
  padding: var(--space-16) var(--space-20);
  border-radius: var(--radius-lg);   /* 12px по умолчанию */
  transition: border-color .2s ease, box-shadow .2s ease;
}

.input::placeholder,
.textarea::placeholder {
  color: var(--color-grey-500);
}

.input:hover:not(:disabled),
.textarea:hover:not(:disabled),
.select:hover:not(:disabled) {
  border-color: var(--color-grey-400);
}

.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-80);
}

.input:disabled,
.textarea:disabled,
.select:disabled {
  background: var(--color-grey-200);
  color: var(--color-grey-500);
  cursor: not-allowed;
}

.input.is-error,
.textarea.is-error,
.select.is-error {
  border-color: var(--color-error);
}

.input.is-error:focus,
.textarea.is-error:focus,
.select.is-error:focus {
  box-shadow: 0 0 0 3px var(--color-error-80);
}

/* ----- Pill input (login, password) ----- */
.input--pill {
  border-radius: var(--radius-pill-lg);   /* 100px */
}

/* ----- Underline-вариант (модалки) ----- */
.input--underline {
  border: none;
  border-bottom: 1px solid var(--color-grey-300);
  border-radius: 0;
  padding: var(--space-20) 0;
  background: transparent;
}

.input--underline:focus {
  box-shadow: none;
  border-bottom-color: var(--color-primary);
}

/* ----- Textarea ----- */
.textarea {
  min-height: 120px;
  resize: vertical;
}

/* ----- Select ----- */
.select {
  appearance: none;
  background-image: url("../img/icons/arrow-down.svg");
  background-repeat: no-repeat;
  background-position: right var(--space-20) center;
  background-size: 12px 8px;
  padding-right: calc(var(--space-20) + 12px + var(--space-12));
}

/* ----- Поле с иконкой слева ----- */
.input-group {
  position: relative;
}

.input-group .input {
  padding-left: calc(var(--space-20) + 20px + var(--space-10));
}

.input-group .input-group__icon {
  position: absolute;
  top: 50%;
  left: var(--space-20);
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--color-grey-500);
  pointer-events: none;
}

.input-group .input-group__icon img,
.input-group .input-group__icon svg {
  width: 100%;
  height: 100%;
}

/* Кнопка-«глаз» для пароля */
.input-group .input-group__action {
  position: absolute;
  top: 50%;
  right: var(--space-16);
  transform: translateY(-50%);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: inline-flex;
  color: var(--color-grey-500);
}

/* ----- Checkbox ----- */
.checkbox {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  cursor: pointer;
  font-size: var(--fs-14);
  color: var(--color-ink);
  line-height: 1.3;
}

.checkbox input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.checkbox__box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--color-grey-400);
  border-radius: var(--radius-xs);   /* 4px */
  background: var(--color-white);
  flex-shrink: 0;
  transition: background-color .15s ease, border-color .15s ease;
}

.checkbox__box::after {
  content: "";
  display: block;
  width: 8px;
  height: 6px;
  background: url("../img/icons/check.svg") center/contain no-repeat;
  filter: brightness(0) invert(1);   /* чтобы галка стала белой */
  opacity: 0;
  transition: opacity .15s ease;
}

.checkbox input:checked + .checkbox__box {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.checkbox input:checked + .checkbox__box::after {
  opacity: 1;
}

.checkbox input:focus-visible + .checkbox__box {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.checkbox input:disabled + .checkbox__box {
  background: var(--color-grey-200);
  border-color: var(--color-grey-300);
  cursor: not-allowed;
}

/* ----- Radio ----- */
.radio {
  display: inline-flex;
  align-items: center;
  gap: var(--space-12);
  cursor: pointer;
  font-size: var(--fs-14);
  color: var(--color-ink);
}

.radio input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.radio__circle {
  position: relative;
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--color-grey-400);
  border-radius: 50%;
  background: var(--color-white);
  flex-shrink: 0;
  transition: border-color .15s ease;
}

.radio__circle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  transform: translate(-50%, -50%) scale(0);
  transition: transform .15s ease;
}

.radio input:checked + .radio__circle {
  border-color: var(--color-primary);
}

.radio input:checked + .radio__circle::after {
  transform: translate(-50%, -50%) scale(1);
}

.radio input:focus-visible + .radio__circle {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ----- Upload-зона (dashed border, UI Kit Download Info) ----- */
.upload {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
  padding: var(--space-40) var(--space-20);
  border: 1.5px dashed var(--color-grey-450);
  border-radius: var(--radius-md);   /* 10px */
  background: var(--color-white);
  color: var(--color-grey-600);
  text-align: center;
  cursor: pointer;
  transition: border-color .2s ease, background-color .2s ease;
}

.upload:hover {
  border-color: var(--color-primary);
  background: var(--color-off-white);
}

.upload__icon {
  width: 32px;
  height: 32px;
  color: var(--color-grey-500);
}