/*
 * Формы: Field, Input, Textarea, Select, Search, Checkbox, Radio, Switch.
 * Состояния: default / hover / focus / disabled / success / error / loading
 * (ТЗ ч.3, разд. 109; ч.4, разд. 266). Кольцо фокуса видимое — токен --focus-ring.
 */

.field {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.field__label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-primary);
    font-size: var(--fs-small);
    font-weight: var(--fw-semibold);
}

.field__required {
    color: var(--danger);
}

.field__hint {
    color: var(--text-secondary);
    font-size: var(--fs-caption);
}

.field__message {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--fs-caption);
    font-weight: var(--fw-medium);
}

.field__message--error   { color: var(--danger); }
.field__message--success { color: var(--success); }

/* --- Поля ----------------------------------------------------------------- */

.input,
.select,
.textarea {
    width: 100%;
    height: var(--control-h-md);
    padding-inline: var(--space-4);
    background: var(--bg-card);
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-control);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--fs-body-sm);
    transition: var(--transition-color), box-shadow var(--dur-fast) var(--ease-out);
}

.input:hover,
.select:hover,
.textarea:hover {
    border-color: var(--border-strong);
}

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

.textarea {
    height: auto;
    min-height: 112px;
    padding-block: var(--space-3);
    line-height: var(--lh-normal);
    resize: vertical;
}

.input--lg {
    height: var(--control-h-lg);
    font-size: var(--fs-body);
}

.input--sm,
.select--sm {
    height: var(--control-h-sm);
    padding-inline: var(--space-3);
    font-size: var(--fs-small);
}

.input:disabled,
.select:disabled,
.textarea:disabled {
    background: var(--bg-soft);
    border-color: transparent;
    color: var(--text-muted);
    cursor: not-allowed;
}

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

.field.is-error .input:focus,
.input.is-error:focus {
    box-shadow: 0 0 0 3px rgba(201, 72, 63, .22);
}

.field.is-success .input,
.input.is-success {
    border-color: var(--primary-border);
    background: var(--success-soft);
}

/* Select: своя стрелка вместо системной */
.select {
    appearance: none;
    padding-right: var(--space-8);
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%23676D69' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6.5 9.5 5.5 5 5.5-5'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-3) center;
    cursor: pointer;
}

/* Поле с иконкой или кнопкой внутри */
.input-wrap {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.input-wrap__icon {
    position: absolute;
    left: var(--space-3);
    display: grid;
    place-items: center;
    color: var(--text-muted);
    pointer-events: none;
}

.input-wrap__icon--right {
    left: auto;
    right: var(--space-3);
}

.input-wrap__icon--success { color: var(--success); }
.input-wrap__icon--error   { color: var(--danger); }

.input-wrap .input--with-icon      { padding-left: var(--space-10); }
.input-wrap .input--with-icon-right { padding-right: var(--space-10); }

.input-wrap.is-loading .input-wrap__icon--right::after {
    content: '';
    width: var(--icon-sm);
    height: var(--icon-sm);
    border: 2px solid var(--border-strong);
    border-top-color: var(--primary);
    border-radius: var(--radius-pill);
    animation: gu-spin 640ms linear infinite;
}

/* --- Поиск ---------------------------------------------------------------- */

.search-field {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--space-2);
    width: 100%;
    height: var(--control-h-md);
    padding-inline: var(--space-3) var(--space-1);
    background: var(--bg-sunken);
    border: var(--border-w) solid var(--border);
    border-radius: var(--radius-control);
    transition: var(--transition-color), box-shadow var(--dur-fast) var(--ease-out);
}

.search-field:focus-within {
    background: var(--bg-card);
    border-color: var(--primary-border);
    box-shadow: var(--focus-ring);
}

.search-field__icon {
    display: grid;
    flex: none;
    place-items: center;
    color: var(--text-muted);
}

.search-field__input {
    flex: 1 1 auto;
    min-width: 0;
    height: 100%;
    border: 0;
    background: transparent;
    font-size: var(--fs-body-sm);
    outline: none;
}

.search-field__input::-webkit-search-cancel-button {
    display: none;
}

.search-field--lg {
    height: var(--control-h-lg);
    padding-inline: var(--space-4) var(--space-2);
}

/* --- Чекбоксы, радио, переключатель --------------------------------------- */

.check {
    display: inline-flex;
    align-items: flex-start;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--fs-body-sm);
}

.check__input {
    flex: none;
    width: 20px;
    height: 20px;
    margin: 0;
    appearance: none;
    background: var(--bg-card);
    border: var(--border-w-strong) solid var(--border-strong);
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: var(--transition-color), box-shadow var(--dur-fast) var(--ease-out);
}

.check__input[type='radio'] {
    border-radius: var(--radius-pill);
}

.check__input:hover {
    border-color: var(--primary);
}

.check__input:checked {
    background: var(--primary);
    border-color: var(--primary);
    background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23FFFFFF' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m5.5 12.5 4.2 4.2 8.8-9.4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: center;
}

.check__input[type='radio']:checked {
    background-image: none;
    box-shadow: inset 0 0 0 4px var(--bg-card);
}

.check__input:disabled {
    background: var(--bg-soft);
    border-color: var(--border);
    cursor: not-allowed;
}

.check__input:disabled + .check__body {
    color: var(--text-muted);
}

.check__body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    line-height: var(--lh-normal);
}

.check__note {
    color: var(--text-secondary);
    font-size: var(--fs-caption);
}

.switch {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    font-size: var(--fs-body-sm);
}

.switch__input {
    position: relative;
    flex: none;
    width: 40px;
    height: 22px;
    margin: 0;
    appearance: none;
    background: var(--border-strong);
    border-radius: var(--radius-pill);
    cursor: pointer;
    transition: background-color var(--dur-fast) var(--ease-out);
}

.switch__input::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 16px;
    height: 16px;
    background: var(--bg-card);
    border-radius: var(--radius-pill);
    box-shadow: var(--shadow-xs);
    transition: transform var(--dur-fast) var(--ease-out);
}

.switch__input:checked {
    background: var(--primary);
}

.switch__input:checked::after {
    transform: translateX(18px);
}

.switch__input:disabled {
    background: var(--bg-soft);
    cursor: not-allowed;
}

/* --- Форма как блок ------------------------------------------------------- */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--space-5);
}

.form-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-3);
}