/* ===========================
   СТРАНИЦА КОНДИЦИОНЕРОВ
   conditioning.css
=========================== */

/* ── Hero ── */
.ac-hero {
    position: relative;
    min-height: 520px;
    display: flex;
    align-items: center;
    background:
        linear-gradient(135deg, rgba(10,10,26,0.80) 0%, rgba(13,13,13,0.72) 40%, rgba(26,10,46,0.88) 100%),
        url('https://images.pexels.com/photos/8142459/pexels-photo-8142459.jpeg?auto=compress&cs=tinysrgb&w=1400') center/cover no-repeat;
    overflow: hidden;
}

.ac-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 80% at 80% 50%, rgba(138,43,226,0.22) 0%, transparent 70%),
        radial-gradient(ellipse 40% 60% at 10% 80%, rgba(0,150,255,0.10) 0%, transparent 60%);
}

.ac-hero-overlay {
    display: none;
}

.ac-hero-content {
    position: relative;
    z-index: 1;
    max-width: 700px;
    padding: 80px 0 60px;
}

.ac-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(138,43,226,0.2);
    border: 1px solid rgba(138,43,226,0.5);
    color: #b57bee;
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.2rem;
}

.ac-hero-title {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: #F0F0F0;
    margin-bottom: 1rem;
    line-height: 1.15;
}

.ac-hero-title span {
    color: #8A2BE2;
}

.ac-hero-sub {
    font-size: 1.1rem;
    color: #B0B0B0;
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 560px;
}

.ac-hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.ac-stat {
    display: flex;
    flex-direction: column;
}

.ac-stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: #8A2BE2;
    line-height: 1;
}

.ac-stat-label {
    font-size: 0.78rem;
    color: #B0B0B0;
    margin-top: 4px;
}

.ac-hero-btns {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ── Калькулятор ── */
.calc-wrapper {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 2rem;
    align-items: start;
}

.calc-form {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border);
}

.calc-group {
    margin-bottom: 1.8rem;
}

.calc-label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.calc-input-row {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.6rem;
}

.calc-input {
    flex: 1;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1.4rem;
    font-weight: 700;
    text-align: center;
    padding: 0.6rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.calc-input:focus {
    outline: none;
    border-color: var(--accent);
}

.calc-btn-sm {
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1.2rem;
    font-weight: 700;
    width: 44px;
    height: 44px;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.calc-btn-sm:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.calc-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
    cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    box-shadow: 0 0 0 3px rgba(138,43,226,0.25);
    transition: box-shadow 0.2s;
}

.calc-slider::-webkit-slider-thumb:hover {
    box-shadow: 0 0 0 6px rgba(138,43,226,0.3);
}

.calc-range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.calc-radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.calc-radio {
    cursor: pointer;
}

.calc-radio input[type="radio"] {
    display: none;
}

.calc-radio span {
    display: block;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.calc-radio input[type="radio"]:checked + span {
    background: rgba(138,43,226,0.15);
    border-color: var(--accent);
    color: var(--accent);
    font-weight: 600;
}

.calc-radio:hover span {
    border-color: var(--accent-hover);
}

.calc-result-box {
    background: linear-gradient(135deg, rgba(138,43,226,0.15), rgba(138,43,226,0.05));
    border: 2px solid var(--accent);
    border-radius: 14px;
    padding: 1.5rem;
    text-align: center;
    margin-top: 0.5rem;
}

.calc-result-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calc-result-btu {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.calc-result-kw {
    font-size: 1rem;
    color: var(--text-secondary);
    margin: 0.3rem 0 1rem;
}

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

.calc-guide {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    border: 1px solid var(--border);
    position: sticky;
    top: 90px;
}

.calc-guide-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.2rem;
}

.calc-guide-item {
    display: flex;
    gap: 0.8rem;
    margin-bottom: 1.2rem;
    padding-bottom: 1.2rem;
    border-bottom: 1px solid var(--border);
}

.calc-guide-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.calc-guide-icon {
    font-size: 1.4rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.calc-guide-item strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.calc-guide-item p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* ── Бренды ── */
.ac-brands-section {
    background: var(--bg-secondary);
    padding: 2rem 0;
}

.ac-brands-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.ac-brand-btn {
    padding: 10px 24px;
    background: var(--bg-card);
    border: 2px solid var(--border);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    letter-spacing: 0.3px;
}

.ac-brand-btn:hover,
.ac-brand-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

/* ── Фильтры мощности ── */
.ac-power-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.ac-power-btn {
    padding: 8px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.82rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
    line-height: 1.3;
}

.ac-power-btn small {
    display: block;
    font-size: 0.72rem;
    opacity: 0.75;
}

.ac-power-btn:hover,
.ac-power-btn.active {
    background: rgba(138,43,226,0.15);
    border-color: var(--accent);
    color: var(--accent);
}

/* ── Шапка каталога ── */
.ac-catalog-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.ac-sort-select {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    padding: 8px 14px;
    font-size: 0.88rem;
    font-family: inherit;
    cursor: pointer;
    outline: none;
}

.ac-count-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.ac-recommend-badge {
    background: rgba(138,43,226,0.15);
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* ── Сетка карточек ── */
.ac-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.ac-card {
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    overflow: hidden;
    transition: transform 0.25s, border-color 0.25s, box-shadow 0.25s;
    cursor: pointer;
    position: relative;
}

.ac-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    box-shadow: 0 8px 32px rgba(138,43,226,0.2);
}

.ac-card.highlighted {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(138,43,226,0.3);
}

.ac-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 20px;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ac-card-badge.recommend {
    background: #e6a817;
    color: #000;
}

.ac-card-img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: #1a1a2e;
    padding: 1rem;
}

.ac-card-img-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #1a1a2e, #2a1a3e);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
}

.ac-card-body {
    padding: 1rem 1.2rem 1.2rem;
}

.ac-card-brand {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 4px;
}

.ac-card-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.3;
}

.ac-card-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.8rem;
}

.ac-card-spec {
    background: var(--bg-secondary);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.ac-card-spec.btu {
    background: rgba(138,43,226,0.12);
    color: #b57bee;
}

.ac-card-prices {
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.ac-card-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.ac-card-old-price {
    font-size: 0.88rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

.ac-card-total {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
}

.ac-card-total span {
    color: #4CAF50;
    font-weight: 600;
}

.ac-card-btns {
    display: flex;
    gap: 0.5rem;
}

.ac-card-btns .btn {
    flex: 1;
    padding: 9px 12px;
    font-size: 0.85rem;
}

/* ── Загрузка ── */
.ac-loading {
    grid-column: 1/-1;
    text-align: center;
    padding: 4rem;
    color: var(--text-secondary);
}

.ac-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.ac-empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.ac-empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* ── Установка ── */
.ac-install-section {
    background: var(--bg-secondary);
}

.ac-install-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.ac-install-card {
    background: var(--bg-card);
    border-radius: 16px;
    border: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    position: relative;
    transition: transform 0.25s, border-color 0.25s;
}

.ac-install-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.ac-install-featured {
    border-color: var(--accent);
    box-shadow: 0 0 0 1px var(--accent), 0 8px 32px rgba(138,43,226,0.2);
}

.ac-install-badge-top {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 16px;
    border-radius: 20px;
    white-space: nowrap;
}

.ac-install-icon {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
}

.ac-install-card h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
}

.ac-install-price {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 1rem;
}

.ac-install-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem;
    text-align: left;
}

.ac-install-list li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    padding: 5px 0;
    border-bottom: 1px solid var(--border);
}

.ac-install-list li:last-child {
    border-bottom: none;
}

/* ── Почему мы ── */
.ac-why-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.ac-why-card {
    background: var(--bg-card);
    border-radius: 14px;
    border: 1px solid var(--border);
    padding: 1.5rem;
    text-align: center;
    transition: border-color 0.25s;
}

.ac-why-card:hover {
    border-color: var(--accent);
}

.ac-why-icon {
    font-size: 2rem;
    display: block;
    margin-bottom: 0.8rem;
}

.ac-why-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.ac-why-card p {
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

/* ── Модальные окна ── */
.ac-order-modal,
.ac-product-modal {
    position: fixed;
    inset: 0;
    z-index: 1100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.25s;
}

.ac-order-modal.open,
.ac-product-modal.open {
    opacity: 1;
    pointer-events: all;
}

.ac-order-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1099;
    background: rgba(0,0,0,0.7);
    display: none;
}

.ac-order-backdrop.open {
    display: block;
}

.ac-order-content {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--accent);
    padding: 2rem;
    width: 100%;
    max-width: 480px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.25s;
    max-height: 90vh;
    overflow-y: auto;
}

.ac-order-modal.open .ac-order-content {
    transform: translateY(0);
}

.ac-product-content {
    background: var(--bg-card);
    border-radius: 20px;
    border: 1px solid var(--border);
    padding: 2rem;
    width: 100%;
    max-width: 600px;
    position: relative;
    transform: translateY(20px);
    transition: transform 0.25s;
    max-height: 90vh;
    overflow-y: auto;
}

.ac-product-modal.open .ac-product-content {
    transform: translateY(0);
}

.ac-order-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-secondary);
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.ac-order-close:hover {
    background: #3a1a1a;
    color: var(--danger);
    border-color: var(--danger);
}

.ac-order-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

.ac-order-service {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 0.2rem;
}

.ac-order-price {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 1.2rem;
}

.ac-order-form .form-group {
    margin-bottom: 1rem;
}

.ac-order-form label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.ac-order-form input,
.ac-order-form textarea {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-primary);
    padding: 10px 14px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.ac-order-form input:focus,
.ac-order-form textarea:focus {
    outline: none;
    border-color: var(--accent);
}

/* ── Карточка товара (детали) ── */
.ac-product-detail-img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background: #1a1a2e;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
}

.ac-product-detail-brand {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ac-product-detail-name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0.3rem 0 0.8rem;
    line-height: 1.3;
}

.ac-product-detail-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1rem;
}

.ac-product-detail-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.2rem;
}

.ac-product-detail-prices {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1.2rem;
}

.ac-product-detail-prices .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
}

.ac-product-detail-prices .row:not(:last-child) {
    border-bottom: 1px solid var(--border);
}

.ac-product-detail-prices .label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.ac-product-detail-prices .value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.ac-product-detail-prices .total-label {
    font-weight: 700;
    color: var(--text-primary);
}

.ac-product-detail-prices .total-value {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--accent);
}

.ac-product-detail-btns {
    display: flex;
    gap: 0.8rem;
}

/* ── Успех ── */
.ac-success-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.8);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.ac-success-overlay.show {
    opacity: 1;
    pointer-events: all;
}

.ac-success-box {
    background: var(--bg-card);
    border-radius: 20px;
    border: 2px solid #25D366;
    padding: 2.5rem;
    text-align: center;
    max-width: 380px;
    width: 90%;
    transform: scale(0.85);
    transition: transform 0.3s;
}

.ac-success-overlay.show .ac-success-box {
    transform: scale(1);
}

.ac-success-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.ac-success-box h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.ac-success-box p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* ── Адаптив ── */
@media (max-width: 1024px) {
    .calc-wrapper {
        grid-template-columns: 1fr;
    }
    .calc-guide {
        position: static;
    }
    .ac-install-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    .ac-why-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .ac-hero-stats {
        gap: 1.5rem;
    }
    .ac-stat-num {
        font-size: 1.4rem;
    }
    .ac-hero-btns {
        flex-direction: column;
    }
    .ac-why-grid {
        grid-template-columns: 1fr;
    }
    .ac-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }
    .ac-catalog-header {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .ac-hero-content {
        padding: 60px 0 40px;
    }
    .ac-grid {
        grid-template-columns: 1fr;
    }
    .ac-hero-stats {
        gap: 1rem;
    }
    .ac-stat-num {
        font-size: 1.2rem;
    }
}