:root {
    --Accent-Default: #00B1BA;
    --Text-Dark: #292A2A;
    --Text-Dark-Gray: #878D91;
    --BG-Dark: #3D4042;
    --BG-Gray: #F3F4F5;
    --Gray: #DEE2E3;
    --White: white;
}

* { box-sizing: border-box; }

.prod-header-section {
    padding: 40px 0;
    font-family: 'Inter', sans-serif;
}

.prod-header-container {
    max-width: 1360px;
    margin: 0 auto;
    padding: 0 20px;
    background: var(--BG-Dark);
    border-radius: 16px;
    display: flex;
    gap: 40px;
    padding: 40px;
}

/* ЛЕВАЯ ЧАСТЬ */
.prod-left-block {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.prod-main-title {
    color: var(--White) !important;
    font-size: 48px;
    font-weight: 600;
    line-height: 1.1;
    margin: 0;
}

.prod-subtitle {
    color: var(--White) !important;
    font-size: 16px;
    font-weight: 500;
    line-height: 22.4px;
}

/* БЛОК СТАЛИ */
.prod-middle-row {
    display: flex;
    gap: 16px;
}
.prod-steel-block {
    width: 320px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.prod-steel-title {
    color: var(--White) !important;
    font-size: 20px;
    font-weight: 600;
}
.prod-steel-list {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}
.steel-item {
    display: flex;
    align-items: center;
    gap: 2px;
    color: var(--White) !important;
    font-size: 16px;
    font-weight: 500;
    width: calc(33.33% - 16px);
}
.steel-dot {
    width: 6px;
    height: 6px;
    background: var(--Accent-Default);
    border-radius: 9999px;
    margin-right: 6px;
}

.prod-steel-desc-box {
    flex: 1;
    background: rgba(255, 255, 255, 0.20);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    align-items: center;
}
.prod-steel-desc-text {
    color: var(--White) !important;
    font-size: 16px;
    font-weight: 500;
    line-height: 22.4px;
}

/* ПРЕИМУЩЕСТВА */
.prod-adv-row {
    display: flex;
    gap: 16px;
}
.prod-adv-item {
    flex: 1;
    background: var(--White);
    border-radius: 12px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.prod-adv-icon {
    width: 48px;
    height: 48px;
}
.prod-adv-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.prod-adv-title {
    color: var(--Text-Dark) !important;
    font-size: 16px;
    font-weight: 600;
}
.prod-adv-desc {
    color: var(--Text-Dark-Gray) !important;
    font-size: 14px;
    font-weight: 400;
    line-height: 18.9px;
}

/* ПРАВАЯ ЧАСТЬ (ФОРМА) */
.prod-right-block {
    width: 440px;
    flex-shrink: 0;
    background-color: var(--BG-Gray);
    background-position: center top;
    background-repeat: no-repeat;
    border-radius: 12px;
    padding: 32px;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.prod-form-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(243, 244, 245, 0.85); /* Легкое затемнение фона для читабельности */
    border-radius: 12px;
    z-index: 0;
}
.prod-form-content {
    position: relative;
    z-index: 1;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}
.prod-form-title {
    color: var(--Text-Dark) !important;
    font-size: 32px;
    font-weight: 600;
    text-align: center;
    margin: 0;
    line-height: 1.2;
}

#prodFeedbackForm {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.form-group input {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    background: var(--White);
    border: 1px solid var(--Gray);
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Inter', sans-serif;
    outline: none;
}
.form-group input:focus {
    border-color: var(--Accent-Default);
}

.prod-form-btn {
    width: 100%;
    height: 48px;
    background: var(--Accent-Default);
    border: none;
    border-radius: 8px;
    color: var(--White);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: 0.2s;
}
.prod-form-btn:hover {
    background: #00969d;
}

.prod-form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    cursor: pointer;
    margin-top: 10px;
}
.prod-form-checkbox input {
    display: none;
}
.checkmark {
    min-width: 24px;
    height: 24px;
    background: var(--White);
    border-radius: 4px;
    position: relative;
    border: 1px solid var(--Gray);
}
.prod-form-checkbox input:checked ~ .checkmark {
    background: var(--Accent-Default);
    border-color: var(--Accent-Default);
}
.prod-form-checkbox input:checked ~ .checkmark::after {
    content: '';
    position: absolute;
    left: 8px;
    top: 3px;
    width: 6px;
    height: 12px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}
.checkbox-text {
    color: var(--Text-Dark-Gray) !important;
    font-size: 14px;
    font-weight: 400;
    line-height: 18.9px;
}
.checkbox-text a {
    color: var(--Text-Dark-Gray);
    text-decoration: underline;
}

/* УВЕДОМЛЕНИЕ (POPUP) */
.prod-success-popup {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
.prod-success-popup.show {
    opacity: 1;
    pointer-events: auto;
}
.popup-box {
    background: white;
    padding: 40px;
    border-radius: 12px;
    width: 440px;
    max-width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}
.popup-title {
    color: var(--Text-Dark);
    font-size: 32px;
    font-weight: 600;
    text-align: center;
}
.popup-text {
    color: var(--Text-Dark);
    font-size: 16px;
    font-weight: 500;
    text-align: center;
    line-height: 22.4px;
}
.popup-btn {
    width: 100%;
    height: 48px;
    background: var(--Accent-Default);
    border: none;
    border-radius: 8px;
    color: white;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
}

/* АДАПТИВНОСТЬ */
@media (max-width: 1024px) {
    .prod-header-container {
        flex-direction: column;
        padding: 24px;
    }
    .prod-right-block {
        width: 100%;
    }
}
@media (max-width: 768px) {
    .prod-main-title { font-size: 28px; }
    .prod-middle-row { flex-direction: column; }
    .prod-steel-block { width: 100%; }
    .prod-adv-row { flex-direction: column; }
    .prod-form-title { font-size: 24px; }
    .steel-item { width: calc(50% - 16px); }
}