/**
 * UI components — buttons, ledger, care index, practicalities, form, Q&A
 */

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    padding: 0.75rem 1.25rem;
    font-family: var(--font-ui);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    text-decoration: none;
    border-radius: var(--radius-control);
    border: 1px solid transparent;
    transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.btn--primary {
    background: var(--indigo);
    color: var(--chalk);
    border-color: var(--indigo);
}

.btn--primary:hover {
    background: var(--indigo-hover);
    border-color: var(--indigo-hover);
    color: var(--chalk);
}

.btn--secondary {
    background: transparent;
    color: var(--ink);
    border-color: var(--ink);
}

.btn--secondary:hover {
    background: var(--ink);
    color: var(--chalk);
}

.btn--ghost-light {
    background: transparent;
    color: var(--text-on-dark);
    border-color: rgba(243, 244, 246, 0.75);
}

.btn--ghost-light:hover {
    background: rgba(243, 244, 246, 0.12);
    color: var(--paper);
    border-color: var(--paper);
}

.btn--block {
    width: 100%;
}

/* === Fee ledger === */
.fee-ledger {
    background: var(--paper);
    padding: var(--space-lg) var(--space-md);
}

@media (min-width: 768px) {
    .fee-ledger {
        padding: var(--space-xl) var(--space-lg);
    }
}

.fee-ledger__rules {
    border-top: 1px solid var(--ink);
    border-bottom: 1px solid var(--ink);
    padding: 2px 0;
    margin-bottom: var(--space-lg);
}

.fee-ledger__rules-inner {
    border-top: 1px solid var(--ink);
    height: 0;
}

.fee-ledger__meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

.fee-row {
    display: grid;
    gap: 0.25rem 1rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid var(--rule);
    opacity: 1;
}

.fee-row--head {
    display: none;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
    border-bottom-color: var(--ink);
    padding-bottom: 0.65rem;
}

.fee-row__name {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
}

.fee-row__duration {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.fee-row__price {
    font-family: var(--font-ui);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--indigo);
    font-variant-numeric: tabular-nums;
}

@media (min-width: 640px) {
    .fee-row {
        grid-template-columns: 1fr auto auto;
        align-items: baseline;
    }

    .fee-row--head {
        display: grid;
    }

    .fee-row__price {
        text-align: right;
        min-width: 5.5rem;
    }

    .fee-row__duration {
        min-width: 6.5rem;
        text-align: right;
    }
}

@media (min-width: 1024px) {
    .fee-row__price {
        font-size: 1.5rem;
    }
}

.fee-ledger.is-animate .fee-row:not(.fee-row--head) {
    opacity: 0;
    transition: opacity 0.45s ease;
}

.fee-ledger.is-animate.is-visible .fee-row:not(.fee-row--head) {
    opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
    .fee-ledger.is-animate .fee-row:not(.fee-row--head) {
        opacity: 1;
        transition: none;
    }
}

.fee-group-title {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin: var(--space-lg) 0 var(--space-sm);
}

.fee-ledger__notes {
    margin-top: var(--space-lg);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.fee-ledger__notes p {
    margin-bottom: 0.5rem;
}

.fee-ledger__notes a {
    color: var(--indigo);
}

/* === Care index === */
.care-index {
    border-top: 1px solid var(--rule);
}

.care-item {
    display: block;
    padding: 1.1rem 0;
    border-bottom: 1px solid var(--rule);
    text-decoration: none;
    color: var(--ink);
    transition: color var(--transition);
}

.care-item:hover {
    color: var(--indigo);
}

.care-item__top {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.35rem 1rem;
}

.care-item__name {
    font-family: var(--font-display);
    font-size: 1.0625rem;
    font-weight: 600;
}

.care-item__price {
    font-family: var(--font-ui);
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--indigo);
}

.care-item__blurb {
    margin-top: 0.35rem;
    font-size: 0.9375rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

@media (min-width: 768px) {
    .care-index {
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 2.5rem;
    }

    .care-item {
        display: grid;
        grid-template-columns: 1fr auto;
        column-gap: 1rem;
        align-items: start;
    }

    .care-item__top {
        display: contents;
    }

    .care-item__name {
        grid-column: 1;
    }

    .care-item__price {
        grid-column: 2;
        grid-row: 1 / span 2;
        align-self: center;
        font-size: 1.125rem;
    }

    .care-item__blurb {
        grid-column: 1;
        margin-top: 0.25rem;
    }
}

/* === Practicalities === */
.practicalities dt {
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin-top: var(--space-lg);
    margin-bottom: 0.4rem;
}

.practicalities dt:first-child {
    margin-top: 0;
}

.practicalities dd {
    margin: 0;
    color: var(--ink);
}

.practicalities a {
    color: var(--indigo);
}

/* === Q&A === */
.qa-list {
    border-top: 1px solid var(--rule);
}

.qa-item {
    padding: 1.15rem 0;
    border-bottom: 1px solid var(--rule);
}

.qa-item h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
}

@media (min-width: 1024px) {
    .qa-item h3 {
        font-size: 1.125rem;
    }
}

.qa-item p {
    color: var(--text-secondary);
    font-size: 0.975rem;
}

/* === Form === */
.request-form {
    background: var(--paper);
    padding: var(--space-lg) var(--space-md);
}

@media (min-width: 640px) {
    .request-form {
        padding: var(--space-xl);
    }
}

.request-form__rule {
    width: 100%;
    max-width: 12rem;
    height: 1px;
    background: var(--ink);
    margin-bottom: var(--space-md);
}

.form-field {
    margin-bottom: var(--space-md);
}

.form-field label,
.form-fieldset legend {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
}

.form-fieldset {
    border: 0;
    padding: 0;
    margin: 0 0 var(--space-md);
}

.form-hint {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    margin-top: 0.35rem;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    min-height: 48px;
    padding: 0.7rem 0.85rem;
    background: var(--chalk);
    border: 1px solid var(--rule);
    border-radius: var(--radius-control);
    transition: border-color var(--transition);
}

.form-textarea {
    min-height: 110px;
    resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 2px solid var(--indigo);
    outline-offset: 1px;
    border-color: var(--indigo);
}

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

.radio-list {
    display: grid;
    gap: 0.5rem;
}

.radio-row {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    min-height: 48px;
    padding: 0.65rem 0.75rem;
    border: 1px solid var(--rule);
    border-radius: var(--radius-control);
    background: var(--chalk);
    cursor: pointer;
}

.radio-row:hover {
    border-color: var(--indigo);
}

.radio-row:has(input:checked) {
    border-color: var(--indigo);
    background: var(--paper);
}

.radio-row input {
    margin-top: 0.2rem;
    accent-color: var(--indigo);
    width: 1.1rem;
    height: 1.1rem;
    flex-shrink: 0;
}

.radio-row__body {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 0.25rem 0.75rem;
}

.radio-row__label {
    font-size: 0.9375rem;
}

.radio-row__price {
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--indigo);
    font-size: 0.9375rem;
}

.selected-fee {
    margin: 0.5rem 0 var(--space-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.selected-fee strong {
    color: var(--indigo);
    font-variant-numeric: tabular-nums;
}

.checkbox-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 0.65rem;
    margin: var(--space-md) 0 var(--space-lg);
}

.checkbox-row input {
    margin-top: 0.25rem;
    width: 1.15rem;
    height: 1.15rem;
    accent-color: var(--indigo);
    flex-shrink: 0;
}

.checkbox-row label {
    flex: 1;
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
}

.checkbox-row .form-error {
    flex: 1 0 100%;
}

.form-error {
    display: none;
    color: var(--error);
    font-size: 0.8125rem;
    margin-top: 0.35rem;
}

.form-error.is-visible {
    display: block;
}

.form-status {
    display: none;
    margin-top: var(--space-md);
    font-size: 0.875rem;
}

.form-status.is-error {
    display: block;
    color: var(--error);
}

.form-legal {
    margin-top: var(--space-md);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.form-legal a {
    color: var(--indigo);
}

/*
 * Без forms.js всегда виден select (рабочий native POST).
 * С forms.js на ≥640px — radio UI; select скрыт, но остаётся source of truth.
 */
.choice-radios {
    display: none;
}

.choice-select-wrap {
    display: block;
}

@media (min-width: 640px) {
    html.js-forms .choice-radios {
        display: grid;
    }

    html.js-forms .choice-select-wrap {
        display: none;
    }
}

.form-fieldset > .form-error {
    margin-top: 0.5rem;
    margin-bottom: 0.25rem;
}

.form-fieldset.is-invalid .choice-select-wrap .form-select,
.form-fieldset.is-invalid .radio-row {
    border-color: var(--error);
}