* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Arial, Helvetica, sans-serif;
}
.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 80px;      /* desktop */
  width: auto;
}
.logo {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 45px;      /* desktop */
  width: auto;
}

/* CONTAINER */
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* HEADER */
.header {
  background: #ffffff;
  border-bottom: 1px solid #eee;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.logo {
  font-size: 32px;
  font-weight: 700;
}

.logo span {
  color: #29b6f6;
}

.nav a {
  margin-left: 28px;
  text-decoration: none;
  color: #000;
  font-size: 14px;
  text-transform: uppercase;
  font-weight: 500;
}

/* HERO */
.hero {
  position: relative;
  height: 80vh;
  background: url("../img/homeslider.jpg") center center / cover no-repeat;
  display: flex;
  align-items: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
}

.hero-content {
  position: relative;
  color: #fff;
  max-width: 650px;
}

.hero-content h1 {
  font-size: 42px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 25px;
}

.hero-content strong {
  font-weight: 800;
}

/* BUTTON */
.btn-primary {
  display: inline-block;
  background: #29b6f6;
  color: #fff;
  padding: 14px 28px;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .nav {
    display: none;
  }

  .hero-content h1 {
    font-size: 30px;
  }
}
.performance-section {
  padding: 80px 0;
  background: #ffffff;
}

.performance-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.performance-text h2 {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 24px;
  color: #000;
}

.performance-text p {
  font-size: 16px;
  line-height: 1.7;
  color: #333;
  margin-bottom: 18px;
}

.performance-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .performance-grid {
    grid-template-columns: 1fr;
  }

  .performance-image {
    order: -1;
  }

  .performance-text h2 {
    font-size: 30px;
  }
}
.help-section {
  background: #86c9ff;
  padding: 90px 0;
  text-align: center;
}

.help-content {
  max-width: 900px;
}

.help-content h2 {
  font-size: 40px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 25px;
}

.help-content p {
  font-size: 18px;
  line-height: 1.7;
  color: #ffffff;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .help-content h2 {
    font-size: 30px;
  }

  .help-content p {
    font-size: 16px;
  }
}
.benefits-section {
  padding: 90px 0;
  background: #ffffff;
}

.benefits-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 70px;
  color: #000;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px 40px;
}

.benefit-item {
  text-align: center;
}

.benefit-item img {
  width: 70px;
  height: 70px;
  margin-bottom: 20px;
}

.benefit-item h4 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: #000;
}

.benefit-item p {
  font-size: 15px;
  line-height: 1.6;
  color: #555;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .benefits-title {
    font-size: 28px;
  }
}
.product-links-section {
  padding: 80px 0;
  background: #ffffff;
}

.product-links-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.product-card {
  position: relative;
  overflow: hidden;
}

.product-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.product-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
}

.product-overlay h3 {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 15px;
}

.outline-btn {
  padding: 10px 22px;
  border: 2px solid #ffffff;
  color: #ffffff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.outline-btn:hover {
  background: #ffffff;
  color: #000000;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .product-links-grid {
    grid-template-columns: 1fr;
  }

  .product-overlay h3 {
    font-size: 26px;
  }
}
.upvc-section {
  padding: 90px 0;
  background: #ffffff;
}

.upvc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.upvc-text h2 {
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 20px;
}

.upvc-text p {
  font-size: 15px;
  line-height: 1.7;
  color: #444;
  margin-bottom: 16px;
}

.upvc-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

.btn-primary {
  display: inline-block;
  margin-top: 10px;
  background: #29b6f6;
  color: #ffffff;
  padding: 12px 26px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border-radius: 4px;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .upvc-grid {
    grid-template-columns: 1fr;
  }
}
.comparison-section {
  padding: 90px 0;
  background: #ffffff;
}

.comparison-title {
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 60px;
}

.comparison-table {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr;
  gap: 20px;
}

.col {
  background: #fafafa;
  border-radius: 4px;
  overflow: hidden;
}

.col-head {
  padding: 18px;
  font-weight: 700;
  text-align: center;
  background: #f1f1f1;
}

.feature-col .cell {
  text-align: left;
  padding-left: 20px;
}

.upvc-col {
  background: #9ac64a;
  color: #ffffff;
}

.upvc-col .col-head {
  background: #9ac64a;
  color: #ffffff;
}

.cell {
  height: 55px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-top: 1px solid rgba(0,0,0,0.05);
  font-size: 16px;
}

.feature-col .cell {
  justify-content: flex-start;
  color: #555;
}

.check {
  font-size: 20px;
  font-weight: 700;
}

.cross {
  font-size: 20px;
  opacity: 0.6;
}

/* RESPONSIVE */
@media (max-width: 992px) {
  .comparison-table {
    grid-template-columns: 1fr;
  }

  .feature-col {
    display: none;
  }
}
.premium-section {
  padding: 90px 0;
  background: #ffffff;
}

.premium-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}

.premium-text h2 {
  font-size: 34px;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 22px;
  color: #000;
}

.premium-text p {
  font-size: 15px;
  line-height: 1.7;
  color: #555;
  margin-bottom: 16px;
}

.premium-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 4px;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .premium-grid {
    grid-template-columns: 1fr;
  }

  .premium-text h2 {
    font-size: 28px;
  }
}
.noise-cta-section {
  background: #ffc7c4;
  padding: 90px 0;
  text-align: center;
}

.noise-cta-content {
  max-width: 900px;
}

.noise-cta-content h2 {
  font-size: 34px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 20px;
}

.noise-cta-content p {
  font-size: 16px;
  color: #ffffff;
  margin-bottom: 30px;
}

.noise-cta-btn {
  display: inline-block;
  padding: 12px 30px;
  border: 2px solid #000000;
  border-radius: 25px;
  color: #000000;
  background: #ffffff;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
}

.noise-cta-btn:hover {
  background: #000000;
  color: #ffffff;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  .noise-cta-content h2 {
    font-size: 26px;
  }
}
.faq-section {
  padding: 90px 0;
  background: #ffffff;
}

.faq-title {
  text-align: center;
  font-size: 34px;
  font-weight: 700;
  margin-bottom: 50px;
}

.faq-list {
  max-width: 900px;
  margin: auto;
  border: 1px solid #e1e1e1;
}

.faq-item {
  border-bottom: 1px solid #e1e1e1;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  cursor: pointer;
  font-weight: 600;
  color: #000;
}

.faq-icon {
  font-size: 22px;
  font-weight: 700;
}

.faq-answer {
  display: none;
  padding: 0 20px 18px;
  font-size: 15px;
  line-height: 1.7;
  color: #555;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-icon {
  content: "−";
}
.contact-section {
  padding: 90px 0;
  background: #f9f9f9;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  background: #ffffff;
  padding: 50px;
  border-radius: 6px;
}

.contact-info h4 {
  font-size: 18px;
  margin-bottom: 6px;
  color: #000;
}

.info-block {
  margin-bottom: 35px;
}

.info-block p {
  font-size: 15px;
  color: #444;
  line-height: 1.6;
}

.highlight {
  color: #5db8ff;
  font-weight: 600;
}

/* FORM */
.contact-form h2 {
  font-size: 30px;
  margin-bottom: 25px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  margin-bottom: 6px;
}

.form-group label span {
  color: red;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-size: 14px;
}

.radio-group {
  display: flex;
  gap: 20px;
  font-size: 14px;
}

.submit-btn {
  margin-top: 10px;
  background: #007bff;
  color: #ffffff;
  border: none;
  padding: 10px 26px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .contact-grid {
    grid-template-columns: 1fr;
    padding: 30px;
  }
}
.site-footer {
  background: #f1f1f1;
  padding-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  padding-bottom: 40px;
}

.footer-col h4 {
  font-size: 16px;
  margin-bottom: 15px;
  font-weight: 700;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li {
  margin-bottom: 8px;
}

.footer-col ul li a {
  text-decoration: none;
  color: #000;
  font-size: 14px;
}

.footer-col p {
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 12px;
}

.service-area {
  color: #e60000;
  font-weight: 600;
}

.mt-20 {
  margin-top: 20px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.footer-social a {
  width: 30px;
  height: 30px;
  background: #000;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  text-decoration: none;
  border-radius: 50%;
}

/* COPYRIGHT BAR */
.footer-bottom {
  background: red;
  color: #ffffff;
  text-align: center;
  padding: 15px 10px;
  font-size: 14px;
}

/* RESPONSIVE */
@media (max-width: 991px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}