@charset "UTF-8";
@font-face {
  font-family: "Helvetica Neue Cyr";
  src: url("../fonts/HelveticaNeueCyr-Black.woff2") format("woff2"), url("../fonts/HelveticaNeueCyr-Black.woff") format("woff"), url("../fonts/HelveticaNeueCyr-Black.ttf") format("truetype");
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Helvetica Neue Cyr";
  src: url("../fonts/HelveticaNeueCyr-Medium.woff2") format("woff2"), url("../fonts/HelveticaNeueCyr-Medium.woff") format("woff"), url("../fonts/HelveticaNeueCyr-Medium.ttf") format("truetype");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: "Helvetica Neue Cyr", Helvetica, Arial, sans-serif;
  font-weight: 500;
  color: #231f20;
  background-color: #ffffff;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}
a:hover {
  color: #c9252c;
}

.container {
  width: 100%;
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }
}

.container-wide {
  width: 100%;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 768px) {
  .container-wide {
    padding: 0 20px;
  }
}

main {
  flex: 1;
  padding-top: 70px;
}
@media (max-width: 480px) {
  main {
    padding-top: 60px;
  }
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

h1 {
  font-size: 1.5rem;
}
@media (max-width: 992px) {
  h1 {
    font-size: 1.4rem;
  }
}
@media (max-width: 768px) {
  h1 {
    font-size: 1.3rem;
  }
}

h2 {
  font-size: 1.3rem;
}
@media (max-width: 992px) {
  h2 {
    font-size: 1.2rem;
  }
}
@media (max-width: 768px) {
  h2 {
    font-size: 1.1rem;
  }
}

h3 {
  font-size: 1.2rem;
}

p {
  font-size: 1rem;
  opacity: 0.6;
  margin: 16px auto 0;
  line-height: 1.33;
}
p.faded {
  opacity: 0.85;
}

.btn-primary {
  display: inline-block;
  padding: 10px 28px;
  background-color: #c9252c;
  color: #ffffff;
  font-weight: 500;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.05em;
  font-size: 0.9rem;
}
.btn-primary:hover {
  background-color: #231f20;
  color: #ffffff;
}
@media (max-width: 768px) {
  .btn-primary {
    padding: 8px 20px;
    font-size: 0.85rem;
  }
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #ffffff;
  border-bottom: 1px solid rgba(35, 31, 32, 0.15);
  z-index: 1000;
  height: 70px;
}
@media (max-width: 480px) {
  header {
    height: 60px;
  }
}
header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}
@media (max-width: 768px) {
  header .container {
    gap: 20px;
  }
}

.header-logo {
  flex-shrink: 0;
}
.header-logo img {
  height: 30px;
  width: auto;
  display: block;
}
@media (max-width: 480px) {
  .header-logo img {
    height: 20px;
  }
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 50px;
  flex: 1;
}
@media (max-width: 768px) {
  .header-nav {
    gap: 15px;
  }
}
@media (max-width: 480px) {
  .header-nav {
    display: none;
  }
}
.header-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}
@media (max-width: 768px) {
  .header-nav a {
    font-size: 0.85rem;
  }
}
.header-nav a:hover {
  color: #c9252c;
}

.header-cta {
  flex-shrink: 0;
}
.header-cta a {
  border-radius: 3px;
}

footer {
  background-color: #ffffff;
  color: #231f20;
  padding: 80px 0 40px;
  margin-top: 120px;
  border-top: 1px solid rgba(35, 31, 32, 0.15);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 80px;
  margin-bottom: 60px;
}
@media (max-width: 992px) {
  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

.footer-about h3 {
  margin-bottom: 20px;
  color: #231f20;
  font-size: 0.9rem;
}
.footer-about p {
  line-height: 1.8;
  opacity: 0.7;
  font-size: 0.95rem;
}

.footer-links h4 {
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: #231f20;
}
.footer-links ul {
  list-style: none;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  opacity: 0.7;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}
.footer-links a:hover {
  opacity: 1;
  color: #c9252c;
}

.footer-contacts h4 {
  margin-bottom: 20px;
  font-size: 0.9rem;
  color: #231f20;
}
.footer-contacts p {
  font-size: 0.95rem;
  opacity: 0.7;
  margin-bottom: 8px;
}

.contact-icons {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.contact-icon {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #231f20;
  color: #231f20;
  border-radius: 50%;
  transition: all 0.3s ease;
  font-size: 0.85rem;
  font-weight: 900;
}
.contact-icon:hover {
  border-color: #c9252c;
  color: #c9252c;
}
.contact-icon:hover:hover {
  transform: translateY(-2px);
}

.footer-bottom {
  text-align: center;
  padding-top: 40px;
  border-top: 1px solid rgba(35, 31, 32, 0.15);
  opacity: 0.5;
  font-size: 0.85rem;
}

.diagonal-lines {
  position: relative;
  overflow: hidden;
}
.diagonal-lines::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: repeating-linear-gradient(45deg, transparent, transparent 30px, rgba(35, 31, 32, 0.15) 30px, rgba(35, 31, 32, 0.15) 31px);
  pointer-events: none;
  opacity: 0.15;
}

.corner-accent {
  position: relative;
  padding-top: 40px;
}
.corner-accent::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 1px;
  background-color: #c9252c;
}

.calc-form .form-line {
  display: flex;
  gap: 1rem;
  margin-bottom: 1rem;
}
.calc-form .form-field {
  flex: 1;
}
.calc-form .form-field.hidden {
  display: none;
}
.calc-form .form-field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #231f20;
}
.calc-form .form-field input[type=text],
.calc-form .form-field input[type=number],
.calc-form .form-field input[type=tel],
.calc-form .form-field input[type=email],
.calc-form .form-field select {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}
.calc-form .form-field input[type=text]:focus,
.calc-form .form-field input[type=number]:focus,
.calc-form .form-field input[type=tel]:focus,
.calc-form .form-field input[type=email]:focus,
.calc-form .form-field select:focus {
  outline: none;
  border-color: #c9252c;
}

.contact-block {
  margin: 2rem 0;
  padding: 1.5rem;
  background: #f9f9f9;
  border-radius: 8px;
  border: 2px solid #e0e0e0;
}
.contact-block h4 {
  margin-top: 0;
  margin-bottom: 1rem;
  color: #231f20;
}
.contact-block .contact-summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.contact-block .contact-summary .contact-summary-text {
  font-weight: 500;
  color: #231f20;
}
.contact-block .contact-summary .contact-edit-btn {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid #c9252c;
  color: #c9252c;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s;
}
.contact-block .contact-summary .contact-edit-btn:hover {
  background: #c9252c;
  color: white;
}
.contact-block .contact-form .contact-method-selector {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.contact-block .contact-form .contact-method-selector .radio-option {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 1rem;
  border: 2px solid #e0e0e0;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
}
.contact-block .contact-form .contact-method-selector .radio-option input[type=radio] {
  margin-right: 0.5rem;
  cursor: pointer;
}
.contact-block .contact-form .contact-method-selector .radio-option span {
  font-weight: 500;
}
.contact-block .contact-form .contact-method-selector .radio-option:hover {
  border-color: #c9252c;
  background: white;
}
.contact-block .contact-form .contact-method-selector .radio-option:has(input:checked) {
  border-color: #c9252c;
  background: rgb(248.3928571429, 219.1071428571, 220.3571428571);
}
.contact-block .contact-form .contact-app-selector,
.contact-block .contact-form .contact-phone-field,
.contact-block .contact-form .contact-email-field {
  margin-bottom: 1rem;
}
.contact-block .contact-form .contact-app-selector label,
.contact-block .contact-form .contact-phone-field label,
.contact-block .contact-form .contact-email-field label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: #231f20;
}
.contact-block .contact-form .contact-app-selector select,
.contact-block .contact-form .contact-app-selector input,
.contact-block .contact-form .contact-phone-field select,
.contact-block .contact-form .contact-phone-field input,
.contact-block .contact-form .contact-email-field select,
.contact-block .contact-form .contact-email-field input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s;
}
.contact-block .contact-form .contact-app-selector select:focus,
.contact-block .contact-form .contact-app-selector input:focus,
.contact-block .contact-form .contact-phone-field select:focus,
.contact-block .contact-form .contact-phone-field input:focus,
.contact-block .contact-form .contact-email-field select:focus,
.contact-block .contact-form .contact-email-field input:focus {
  outline: none;
  border-color: #c9252c;
}
.contact-block .contact-form .phone-input-wrapper {
  display: flex;
  align-items: center;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  transition: border-color 0.2s;
}
.contact-block .contact-form .phone-input-wrapper:focus-within {
  border-color: #c9252c;
}
.contact-block .contact-form .phone-input-wrapper .phone-prefix {
  padding: 0.75rem 0.5rem 0.75rem 0.75rem;
  font-weight: 500;
  color: #231f20;
  background: #f5f5f5;
  border-right: 1px solid #e0e0e0;
}
.contact-block .contact-form .phone-input-wrapper input {
  flex: 1;
  border: none;
  border-radius: 0 4px 4px 0;
}
.contact-block .contact-form .phone-input-wrapper input:focus {
  border: none;
}
.contact-block .contact-form .phone-hint {
  display: block;
  margin-top: 0.25rem;
  font-size: 0.85rem;
  color: #666;
}

.calc-result {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 6px;
}
.calc-result .result-price {
  padding: 1rem;
  background: rgb(234.4322709163, 246.0677290837, 234.9023904382);
  border: 2px solid #4CAF50;
  border-radius: 4px;
  color: #231f20;
  font-weight: 500;
}
.calc-result .result-error {
  padding: 1rem;
  background: white;
  border: 2px solid #f44336;
  border-radius: 4px;
  color: #f44336;
  font-weight: 500;
}

.intro {
  padding: 40px 0;
}
.intro h1, .intro h2 {
  font-size: 1.5rem;
  letter-spacing: -0.03em;
  line-height: 1;
}
@media (max-width: 992px) {
  .intro h1, .intro h2 {
    font-size: 1.3rem;
  }
}
@media (max-width: 768px) {
  .intro h1, .intro h2 {
    font-size: 1.1rem;
  }
}
.intro h2 {
  margin-left: -0.4em;
}

.page-header {
  padding: 80px 0 40px;
  border-bottom: 1px solid rgba(35, 31, 32, 0.15);
}
.page-header h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}
.page-header .lead {
  font-size: 1rem;
  opacity: 0.6;
}

.products-preview h2 {
  font-size: 2rem;
  margin-bottom: 60px;
}

.advantages {
  padding: 100px 0;
  background-color: #ffffff;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
}
@media (max-width: 992px) {
  .advantages-grid {
    grid-template-columns: 1fr;
  }
}

.advantage-item {
  text-align: center;
  padding: 0;
}
.advantage-item h3 {
  margin-bottom: 20px;
  color: #231f20;
  font-size: 0.95rem;
}
.advantage-item p {
  line-height: 1.8;
  opacity: 0.7;
  font-size: 0.95rem;
}

.items-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 9fr));
  gap: 1px;
}
@media (max-width: 768px) {
  .items-grid {
    grid-template-columns: 6fr;
  }
}
@media (max-width: 480px) {
  .items-grid {
    grid-template-columns: 3fr;
  }
}

.item-card {
  background-color: #ffffff;
  transition: all 0.3s ease;
  display: block;
}
.item-card:hover {
  background-color: #fafafa;
}
.item-card:hover .item-card-image img {
  transform: scale(1.02);
}

.item-card-image {
  width: 100%;
  overflow: hidden;
  background-color: #f5f5f5;
}
.item-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.item-card-content h3 {
  margin-bottom: 12px;
  font-size: 0.9rem;
}
.item-card-content p {
  opacity: 0.6;
  font-size: 0.8rem;
}

.hero-slider {
  width: 100%;
  margin: 10px auto 40px;
}

.swiper.main-slider {
  width: 100%;
  margin: 0 auto;
  height: 370px;
  padding-bottom: 50px;
}
.swiper.main-slider .swiper-wrapper {
  height: 100%;
  max-height: 100%;
}
.swiper.main-slider .swiper-slide {
  overflow: hidden;
  border-radius: 16px;
  height: 320px;
  max-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
}
.swiper.main-slider .swiper-slide picture {
  height: 100%;
  border-radius: 16px;
  overflow: hidden;
  display: flex;
}
.swiper.main-slider .swiper-slide img {
  min-width: 100%;
  height: 100%;
  object-fit: cover;
}
.swiper.main-slider .pagiwrap {
  padding: 32px 0 0 0;
  justify-content: center;
  gap: 20px;
  align-items: center;
}
.swiper.main-slider .swiper-pagination {
  position: relative;
  width: auto;
  min-height: 34px;
}
@media (max-width: 480px) {
  .swiper.main-slider .swiper-pagination-bullet {
    width: 8px;
    height: 8px;
  }
}
@media (max-width: 480px) {
  .swiper.main-slider .swiper-pagination-bullet-active {
    width: 10px;
    height: 10px;
  }
}
.swiper.main-slider .swiper-pagination-bullet {
  background: #000;
  opacity: 1;
}
.swiper.main-slider .swiper-pagination-bullet-active {
  background: #c51a1b;
}
.swiper.main-slider .swiper-button-next,
.swiper.main-slider .swiper-button-prev {
  position: relative;
  color: #c51a1b;
  min-width: 40px;
  min-height: 40px;
}
.swiper.main-slider .swiper-button-next::after,
.swiper.main-slider .swiper-button-prev::after {
  font-size: 10px;
  font-weight: bold;
  line-height: 1;
  background-color: #fff;
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-detail,
.technology-detail {
  padding: 60px 0 100px;
}
@media (max-width: 768px) {
  .product-detail,
  .technology-detail {
    padding: 40px 0 60px;
  }
}

.page-title {
  font-size: 2.5rem;
  margin-bottom: 40px;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
@media (max-width: 992px) {
  .page-title {
    font-size: 2rem;
  }
}
@media (max-width: 768px) {
  .page-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }
}

.product-layout,
.technology-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}
@media (max-width: 992px) {
  .product-layout,
  .technology-layout {
    gap: 40px;
  }
}
@media (max-width: 768px) {
  .product-layout,
  .technology-layout {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.product-gallery,
.technology-gallery {
  position: sticky;
  top: 100px;
  height: fit-content;
  max-width: 100%;
  overflow: hidden;
}
@media (max-width: 768px) {
  .product-gallery,
  .technology-gallery {
    position: static;
  }
}

.product-swiper,
.technology-swiper {
  border-radius: 9px;
  overflow: hidden;
  background-color: #f5f5f5;
  margin-bottom: 10px;
  width: 100%;
  max-width: 100%;
  height: 500px;
}
@media (max-width: 992px) {
  .product-swiper,
  .technology-swiper {
    height: 400px;
  }
}
@media (max-width: 768px) {
  .product-swiper,
  .technology-swiper {
    height: 300px;
  }
}
.product-swiper .swiper-slide,
.technology-swiper .swiper-slide {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
}
.product-swiper .swiper-slide img,
.technology-swiper .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-swiper .swiper-button-next,
.product-swiper .swiper-button-prev,
.technology-swiper .swiper-button-next,
.technology-swiper .swiper-button-prev {
  color: #ffffff;
  background-color: rgba(35, 31, 32, 0.5);
  width: 40px;
  height: 40px;
  border-radius: 50%;
}
.product-swiper .swiper-button-next::after,
.product-swiper .swiper-button-prev::after,
.technology-swiper .swiper-button-next::after,
.technology-swiper .swiper-button-prev::after {
  font-size: 16px;
}
.product-swiper .swiper-button-next:hover,
.product-swiper .swiper-button-prev:hover,
.technology-swiper .swiper-button-next:hover,
.technology-swiper .swiper-button-prev:hover {
  background-color: rgba(35, 31, 32, 0.8);
}
.product-swiper .swiper-pagination-bullet,
.technology-swiper .swiper-pagination-bullet {
  background: #ffffff;
  opacity: 0.5;
}
.product-swiper .swiper-pagination-bullet-active,
.technology-swiper .swiper-pagination-bullet-active {
  opacity: 1;
  background: #c9252c;
}

.product-thumbs .swiper-slide,
.technology-thumbs .swiper-slide {
  border-radius: 5px;
  overflow: hidden;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.3s ease;
  aspect-ratio: 4/3;
}
.product-thumbs .swiper-slide:hover,
.technology-thumbs .swiper-slide:hover {
  opacity: 0.8;
}
.product-thumbs .swiper-slide-thumb-active,
.technology-thumbs .swiper-slide-thumb-active {
  opacity: 1;
}
.product-thumbs .swiper-slide img,
.technology-thumbs .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.product-info .short-summary,
.technology-info .short-summary {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 30px;
  opacity: 0.8;
}
@media (max-width: 768px) {
  .product-info .short-summary,
  .technology-info .short-summary {
    font-size: 1rem;
  }
}
.product-info .info-section,
.technology-info .info-section {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(35, 31, 32, 0.15);
}
.product-info .info-section:last-child,
.technology-info .info-section:last-child {
  border-bottom: none;
}
.product-info .info-section h3,
.technology-info .info-section h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
@media (max-width: 768px) {
  .product-info .info-section h3,
  .technology-info .info-section h3 {
    font-size: 1.1rem;
  }
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-tag {
  display: inline-block;
  padding: 8px 16px;
  background-color: #fafafa;
  color: #231f20;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 5px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}
.tech-tag:hover {
  background-color: #c9252c;
  color: #ffffff;
  border-color: #c9252c;
}

.tech-requirements {
  list-style: none;
  padding: 0;
}
.tech-requirements li {
  padding: 12px 0;
  padding-left: 24px;
  position: relative;
  line-height: 1.6;
  border-bottom: 1px solid rgba(35, 31, 32, 0.15);
}
.tech-requirements li:last-child {
  border-bottom: none;
}
.tech-requirements li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #c9252c;
  font-weight: bold;
}

.templates-grid {
  display: grid;
  gap: 10px;
}

.template-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background-color: #fafafa;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 5px;
  transition: all 0.3s ease;
}
.template-link:hover {
  background-color: #c9252c;
  color: #ffffff;
  border-color: #c9252c;
}
.template-link:hover .download-icon {
  transform: translateY(2px);
}
.template-link .download-icon {
  font-size: 1.2rem;
  transition: transform 0.3s ease;
}

.calc-section {
  background-color: #fafafa;
  padding: 30px;
  border-radius: 9px;
  border: 1px solid rgba(35, 31, 32, 0.15);
}
.calc-section h3 {
  margin-top: 0;
}

.presets {
  margin-bottom: 20px;
}
.presets label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 8px;
  font-weight: 500;
}
.presets select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 5px;
  background-color: #ffffff;
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.3s ease;
}
.presets select:hover, .presets select:focus {
  border-color: #c9252c;
  outline: none;
}

.calc-form .form-line {
  margin-bottom: 20px;
  display: flex;
  gap: 10px;
}
.calc-form .form-line .form-field {
  flex: 1;
}
.calc-form .form-line:last-of-type {
  margin-bottom: 30px;
}
.calc-form .form-field.hidden {
  display: none;
}
.calc-form .form-field label {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 6px;
  font-weight: 500;
}
.calc-form .form-field input[type=text],
.calc-form .form-field input[type=number],
.calc-form .form-field select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 5px;
  font-size: 0.95rem;
  transition: border-color 0.3s ease;
}
.calc-form .form-field input[type=text]:hover, .calc-form .form-field input[type=text]:focus,
.calc-form .form-field input[type=number]:hover,
.calc-form .form-field input[type=number]:focus,
.calc-form .form-field select:hover,
.calc-form .form-field select:focus {
  border-color: #c9252c;
  outline: none;
}
.calc-form .form-field .checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.calc-form .form-field .checkbox-label input[type=checkbox] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}
.calc-form .form-field .checkbox-label span {
  font-size: 0.95rem;
  font-weight: normal;
}
.calc-form button[type=submit] {
  width: 100%;
}

.calc-result {
  margin-top: 20px;
  padding: 16px;
  border-radius: 5px;
  background-color: #ffffff;
}
.calc-result .result-price {
  font-size: 1.3rem;
  font-weight: 600;
  color: #c9252c;
}
.calc-result .result-error {
  color: #c9252c;
  font-size: 0.95rem;
}

.advice-box {
  background: linear-gradient(135deg, rgba(201, 37, 44, 0.05) 0%, rgba(201, 37, 44, 0.02) 100%);
  padding: 24px;
  border-radius: 9px;
  border-left: 4px solid #c9252c;
  margin-bottom: 40px;
}
.advice-box h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: #c9252c;
}
.advice-box p {
  line-height: 1.7;
  margin: 0;
  font-size: 0.95rem;
}

.description-section {
  margin-bottom: 40px;
}
.description-section h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
@media (max-width: 768px) {
  .description-section h3 {
    font-size: 1.1rem;
  }
}
.description-section .content {
  line-height: 1.8;
  font-size: 0.95rem;
  white-space: pre-wrap;
}
.description-section .content p {
  margin-bottom: 16px;
}
.description-section .content p:last-child {
  margin-bottom: 0;
}
.description-section .content ul,
.description-section .content ol {
  margin: 16px 0;
  padding-left: 24px;
}
.description-section .content li {
  margin-bottom: 8px;
}
.description-section .content strong {
  font-weight: 600;
}

.technologies-section {
  margin-bottom: 40px;
}
.technologies-section h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
@media (max-width: 768px) {
  .technologies-section h3 {
    font-size: 1.1rem;
  }
}

.technologies-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tech-chip {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  background: #f5f5f5;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 20px;
  color: #231f20;
  font-size: 0.9rem;
  text-decoration: none;
  transition: all 0.2s ease;
}
.tech-chip:hover {
  background: #c9252c;
  color: #ffffff;
  border-color: #c9252c;
  transform: translateY(-2px);
}

.products-using-tech .products-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.products-using-tech .products-list li {
  margin-bottom: 12px;
}
.products-using-tech .products-list li:last-child {
  margin-bottom: 0;
}
.products-using-tech .products-list li a {
  display: block;
  padding: 10px 16px;
  background: #f5f5f5;
  border: 1px solid rgba(35, 31, 32, 0.15);
  border-radius: 7px;
  color: #231f20;
  text-decoration: none;
  transition: all 0.2s ease;
}
.products-using-tech .products-list li a:hover {
  background: #c9252c;
  color: #ffffff;
  border-color: #c9252c;
  transform: translateX(5px);
}

.faq-section h3 {
  font-size: 1.3rem;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}
@media (max-width: 768px) {
  .faq-section h3 {
    font-size: 1.1rem;
  }
}

.faq-item {
  padding: 20px 0;
  border-bottom: 1px solid rgba(35, 31, 32, 0.15);
}
.faq-item:first-child {
  padding-top: 0;
}
.faq-item:last-child {
  border-bottom: none;
}
.faq-item h4 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: #231f20;
  font-weight: 600;
}
.faq-item p {
  line-height: 1.7;
  opacity: 0.8;
  margin: 0;
  font-size: 0.95rem;
}

.flexcol {
  display: flex;
  flex-direction: column;
}

.flexrow {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
}
.flexrow.wrapping {
  flex-wrap: wrap;
}
.flexrow.center {
  justify-content: center;
}
.flexrow.space-between {
  justify-content: space-between;
}
.flexrow.vcenter {
  align-items: center;
}

.colgap {
  gap: 32px;
}

.subcolgap {
  gap: 16px;
}

.ingap {
  gap: 8px;
}

.flexgrow {
  flex-grow: 1;
}

.col {
  flex: 1;
  max-width: 100%;
}
.col.hug {
  flex: 0 0 auto;
}
.col.fixed {
  flex: 0 0 256px;
}
.col.fill {
  flex: 1;
  flex-grow: 1;
}

@media only screen and (max-width: 479px) {
  .wrap479 {
    flex-wrap: wrap;
  }
}
@media only screen and (max-width: 639px) {
  .wrap639 {
    flex-wrap: wrap;
  }
}
@media only screen and (max-width: 949px) {
  .wrap949 {
    flex-wrap: wrap;
  }
}