/* Desktop calculator layout */

.calc-page {
    min-height: 100vh;
    background: var(--gray-light);
    display: flex;
    flex-direction: column;
}

.calc-topbar {
    width: 100%;
    background: var(--brand-white);
    box-shadow: 0 4px 18px rgba(20, 30, 70, 0.08);
}

.calc-topbar__inner {
    max-width: 1920px;
    margin: 0 auto;
    padding: 28px clamp(32px, 4vw, 80px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.calc-topbar__title {
    margin: 0;
    font-size: clamp(26px, 2.8vw, 32px);
    font-weight: 700;
    color: var(--brand-blue);
    letter-spacing: 0.01em;
}

.calc-topbar__back {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 10px 18px;
    border-radius: 10px;
    border: 1px solid var(--gray-medium);
    background: transparent;
    color: var(--brand-blue);
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.calc-topbar__back:hover,
.calc-topbar__back:focus-visible {
    background: rgba(59, 89, 152, 0.12);
    border-color: var(--brand-blue);
    outline: none;
}

.calc-toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 4000;
    pointer-events: none;
}

.calc-toast {
    min-width: 260px;
    max-width: 360px;
    padding: 14px 18px;
    border-radius: 12px;
    box-shadow: 0 14px 30px rgba(20, 30, 70, 0.15);
    background: var(--brand-white);
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    pointer-events: auto;
    border-left: 4px solid var(--brand-blue);
}

.calc-toast.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.calc-toast--success {
    border-left-color: var(--success);
}

.calc-toast--error {
    border-left-color: var(--error);
}

.calc-toast__close {
    position: absolute;
    top: 10px;
    right: 12px;
    background: transparent;
    border: none;
    font-size: 18px;
    color: inherit;
    cursor: pointer;
    padding: 4px;
}

.calc-desktop {
    display: grid;
    grid-template-columns: 320px 1fr 420px;
    gap: 20px;
    min-height: calc(100vh - 180px);
    font-size: 17px;
    color: var(--text-primary);
    width: 100%;
    max-width: 1920px;
    margin: 0 auto;
    padding: 32px clamp(32px, 4vw, 80px) 64px;
    flex: 1;
}

.calc-desktop * {
    box-sizing: border-box;
}

.calc-desktop__left,
.calc-desktop__right,
.calc-desktop__toolbar {
    position: sticky;
    top: 32px;
    z-index: 1;
}


.calc-desktop__left,
.calc-desktop__right {
    align-self: start;
}

.calc-section-title {
    font-size: 22px;
    font-weight: 700;
    margin: 0 0 16px;
}

.calc-mobile-controls {
    display: none;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
}

.calc-mobile-controls__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.calc-mobile-controls__field label {
    font-size: 15px;
    font-weight: 600;
    color: var(--gray-dark);
}

.calc-mobile-controls__toggle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: var(--gray-dark);
    cursor: pointer;
    user-select: none;
}

.calc-mobile-controls__toggle input {
    width: 20px;
    height: 20px;
    accent-color: var(--brand-blue);
}

.calc-categories__filter {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 16px;
    color: var(--gray-dark);
    margin-bottom: 16px;
    cursor: pointer;
}

.calc-categories__filter input {
    width: 20px;
    height: 20px;
    accent-color: var(--brand-blue);
}

.calc-category-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.calc-category-list__empty {
    margin: 0;
    color: var(--gray-dark);
    font-size: 16px;
}

.calc-category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid transparent;
    background: transparent;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.calc-category-item:hover {
    background: rgba(59, 89, 152, 0.08);
    border-color: rgba(59, 89, 152, 0.4);
}

.calc-category-item.is-active {
    background: var(--brand-blue);
    color: var(--brand-white);
    border-color: var(--brand-blue);
}

.calc-category-item__count {
    font-size: 14px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.08);
    color: inherit;
}

.calc-desktop__left,
.calc-desktop__right {
    background: var(--brand-white);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(20, 30, 70, 0.08);
    padding: 20px;
}

.calc-desktop__center {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calc-desktop__toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    padding: 16px 20px;
    background: var(--brand-white);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(20, 30, 70, 0.08);
}

.calc-toolbar__search {
    flex: 1 1 320px;
}

.calc-toolbar__sort {
    flex: 0 0 220px;
}

.calc-input,
.calc-select {
    width: 100%;
    min-height: 44px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--gray-medium);
    background: var(--brand-white);
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.calc-input:focus,
.calc-select:focus {
    outline: none;
    border-color: var(--brand-blue);
    box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.18);
}

.calc-btn {
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 10px;
    border: 1px solid var(--brand-blue);
    background: var(--brand-blue);
    color: var(--brand-white);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.calc-btn:hover,
.calc-btn:focus-visible {
    background: #2d4373;
    border-color: #2d4373;
    outline: none;
}

.calc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.calc-btn--ghost {
    background: transparent;
    color: var(--brand-blue);
}

.calc-btn--ghost:hover,
.calc-btn--ghost:focus-visible {
    background: rgba(59, 89, 152, 0.12);
    color: var(--brand-blue);
}

.calc-btn--primary {
    width: 100%;
}

.calc-toolbar__badge {
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(59, 89, 152, 0.12);
    color: var(--brand-blue);
    font-size: 15px;
    font-weight: 600;
}

.calc-services {
    background: var(--brand-white);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(20, 30, 70, 0.08);
    padding: 0 0 12px;
}

.calc-services__table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.calc-services__table thead th {
    position: sticky;
    top: 0;
    background: var(--brand-white);
    z-index: 1;
    text-align: left;
    padding: 16px 20px;
    font-size: 16px;
    font-weight: 700;
    border-bottom: 1px solid #e6e9f2;
}

.calc-services__table tbody td {
    padding: 16px 20px;
    border-bottom: 1px solid #eceff6;
    vertical-align: middle;
    font-size: 16px;
}

.calc-services__table tbody tr {
    min-height: 56px;
    transition: background 0.15s ease;
    cursor: pointer;
}

.calc-services__table tbody tr:hover,
.calc-services__table tbody tr.is-active {
    background: rgba(59, 89, 152, 0.08);
}

.calc-services__table tbody tr.is-selected {
    background: rgba(59, 89, 152, 0.14);
}

.calc-services__empty td {
    text-align: center;
    color: var(--gray-dark);
    padding: 60px 20px;
}

.col-name { width: 45%; }
.col-qty { width: 18%; }
.col-unit { width: 12%; }
.col-price { width: 12%; }
.col-sum { width: 13%; }

.calc-service__name {
    font-weight: 600;
    line-height: 1.4;
}

.calc-service__category {
    display: block;
    font-size: 13px;
    color: var(--gray-dark);
    margin-top: 6px;
}

.calc-qty-control {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.calc-qty-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid var(--gray-medium);
    background: var(--brand-white);
    font-size: 24px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.calc-qty-btn:hover,
.calc-qty-btn:focus-visible {
    background: rgba(59, 89, 152, 0.12);
    border-color: var(--brand-blue);
    outline: none;
}


.calc-qty-input {
    width: 120px;
    min-height: 46px;
    padding: 10px 14px;
    text-align: center;
    border-radius: 12px;
    border: 1px solid var(--gray-medium);
    background: var(--brand-white);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    -moz-appearance: textfield;
    appearance: textfield;
}

.calc-qty-input::-webkit-outer-spin-button,
.calc-qty-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.calc-qty-input:focus {
    outline: none;
    border-color: var(--brand-blue);
    box-shadow: 0 0 0 3px rgba(59, 89, 152, 0.18);
}

.calc-price,
.calc-sum {
    font-weight: 600;
    white-space: nowrap;
}

.calc-cart {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.calc-cart__items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-cart__contact {
    display: none;
    flex-direction: column;
    gap: 12px;
    margin-top: 8px;
    padding: 16px;
    border-radius: 12px;
    border: 1px dashed rgba(59, 89, 152, 0.35);
    background: rgba(59, 89, 152, 0.06);
}

.calc-cart__contact.is-visible {
    display: flex;
}

.calc-cart__contact-label {
    font-weight: 600;
    font-size: 16px;
}

.calc-cart__contact-fields {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.calc-cart__contact-fields .calc-select {
    flex: 0 0 160px;
}

.calc-cart__contact-fields .calc-input {
    flex: 1 1 220px;
    min-width: 180px;
}

.calc-cart__contact-hint {
    font-size: 14px;
    color: var(--gray-dark);
}

.calc-cart__contact-error {
    display: none;
    font-size: 14px;
    color: var(--error);
    font-weight: 600;
}

.calc-cart__contact-error.is-visible {
    display: block;
}

.calc-cart__contact--disabled {
    opacity: 0.6;
}

.calc-cart__item {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #eceff6;
}

.calc-cart__item:last-child {
    border-bottom: none;
}

.calc-cart__meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.calc-cart__title {
    font-weight: 600;
    line-height: 1.4;
}

.calc-cart__info {
    font-size: 14px;
    color: var(--gray-dark);
}

.calc-cart__controls {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.calc-cart__control-row {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.calc-cart__remove {
    background: transparent;
    border: none;
    color: var(--error);
    font-size: 16px;
    cursor: pointer;
    padding: 4px 8px;
}

.calc-cart__remove:hover,
.calc-cart__remove:focus-visible {
    text-decoration: underline;
    outline: none;
}

.calc-cart__sum {
    font-weight: 700;
    font-size: 18px;
}

.calc-cart__empty {
    margin: 0;
    color: var(--gray-dark);
    font-size: 16px;
}

.calc-cart__totals {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px solid #eceff6;
    font-size: 16px;
}

.calc-cart__summary {
    display: flex;
    justify-content: space-between;
    font-weight: 600;
}

.calc-cart__summary--total {
    font-size: 20px;
}

.calc-cart__actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.calc-suggestions {
    border-top: 1px solid #eceff6;
    padding-top: 12px;
}

.calc-suggestions__summary {
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
}

.calc-suggestions__list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.calc-suggestion {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 10px;
    background: rgba(59, 89, 152, 0.08);
}

.calc-suggestion__text {
    font-size: 15px;
    line-height: 1.4;
}

.calc-suggestion__action {
    flex-shrink: 0;
}

.calc-suggestion__action .calc-btn {
    min-height: 40px;
}

.calc-footer {
    text-align: center;
    padding: 24px clamp(32px, 4vw, 80px) 40px;
    font-size: 14px;
    color: var(--gray-dark);
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

@media (max-width: 1440px) {
    .calc-desktop {
        grid-template-columns: 280px 1fr 360px;
    }

    .calc-toolbar__sort {
        flex: 0 0 200px;
    }
}

@media (max-width: 1200px) {
    .calc-desktop {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 24px clamp(20px, 5vw, 40px) 48px;
    }

    .calc-desktop__left,
    .calc-desktop__right,
    .calc-desktop__toolbar {
        position: static;
    }

    .calc-desktop__left,
    .calc-desktop__right {
        box-shadow: 0 6px 20px rgba(20, 30, 70, 0.08);
    }

    .calc-mobile-controls {
        display: flex;
    }

    .calc-categories__filter,
    .calc-category-list {
        display: none;
    }

}

@media (max-width: 1024px) {
    .calc-topbar__inner {
        flex-direction: column;
        align-items: flex-start;
    }

    .calc-topbar__back {
        width: 100%;
        justify-content: center;
    }

    .calc-desktop__toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .calc-toolbar__search,
    .calc-toolbar__sort {
        width: 100%;
        flex: 1 1 auto;
    }

    .calc-toolbar__badge {
        align-self: flex-start;
    }
}

@media (max-width: 900px) {
    .calc-desktop {
        padding: 24px clamp(16px, 6vw, 32px) 40px;
    }

    .calc-desktop__left,
    .calc-desktop__right {
        padding: 18px;
    }

    .calc-services {
        padding: 0;
    }

    .calc-services__table thead {
        display: none;
    }

    .calc-services__table tbody tr {
        display: grid;
        grid-template-columns: 1fr;
        gap: 14px;
        padding: 18px 20px;
        border-bottom: 1px solid #eceff6;
    }

    .calc-services__table tbody td {
        padding: 0;
        border: none;
        display: flex;
        justify-content: space-between;
        align-items: center;
        gap: 12px;
    }

    .calc-services__table tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--gray-dark);
    }

    .calc-services__table tbody td.col-name {
        display: block;
    }

    .calc-services__table tbody td.col-name::before {
        content: none;
    }

    .calc-service__category {
        margin-top: 4px;
    }

    .calc-qty-control {
        width: 100%;
        justify-content: space-between;
    }

    .calc-qty-control .calc-qty-input {
        flex: 1 1 auto;
        max-width: 180px;
    }

    .calc-qty-control .calc-qty-btn {
        flex: 0 0 44px;
    }

    .calc-qty-control {
        gap: 8px;
    }

    .calc-cart__item {
        grid-template-columns: 1fr;
    }

    .calc-cart__controls {
        align-items: flex-start;
    }

    .calc-cart__control-row {
        width: 100%;
        justify-content: space-between;
    }

    .calc-cart__sum {
        align-self: flex-end;
    }

    .calc-cart__contact-fields {
        flex-direction: column;
    }

    .calc-cart__contact-fields .calc-select,
    .calc-cart__contact-fields .calc-input {
        width: 100%;
        flex: 1 1 auto;
    }
}

@media (max-width: 640px) {
    .calc-topbar__inner {
        padding: 22px 20px;
    }

    .calc-desktop {
        padding: 20px 20px 32px;
    }

    .calc-desktop__right,
    .calc-desktop__left {
        padding: 16px;
    }

    .calc-btn,
    .calc-input,
    .calc-select {
        min-height: 42px;
    }

    .calc-toolbar__badge {
        width: 100%;
        text-align: center;
    }

    .calc-cart__actions .calc-btn--primary,
    .calc-cart__actions .calc-btn--ghost {
        width: 100%;
    }

    .calc-services__table tbody tr {
        padding: 16px;
    }

    .calc-toast-container {
        right: 16px;
        left: 16px;
        align-items: stretch;
    }

    .calc-toast {
        max-width: none;
    }
}