:root {
  --primary-color: #1F6B6B;
  --secondary-color: #124444;
  --accent-color: #2E9C8F;
  --light-color: #EAF5F4;
  --dark-color: #0C2828;
  --gradient-primary: linear-gradient(135deg, #1F6B6B 0%, #124444 100%);
  --hover-color: #155252;
  --background-color: #F4FAFA;
  --text-color: #1E3535;
  --border-color: rgba(31, 107, 107, 0.14);
  --divider-color: rgba(18, 68, 68, 0.08);
  --shadow-color: rgba(18, 68, 68, 0.09);
  --highlight-color: #7ECFC9;
  --main-font: 'Oswald', sans-serif;
  --alt-font: 'Poppins', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

body {
  font-family: var(--alt-font);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text-color);
  background-color: var(--background-color);
}

.pattern-bg {
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(93, 58, 122, 0.06) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 50%, rgba(155, 122, 181, 0.05) 0%, transparent 55%),
    repeating-conic-gradient(
      rgba(93, 58, 122, 0.012) 0deg,
      transparent 1deg,
      transparent 89deg,
      rgba(93, 58, 122, 0.012) 90deg
    );
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* HEADER */
header {
  background: white;
  padding: 1.2rem 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 6px var(--shadow-color);
  border-bottom: 3px solid var(--primary-color);
}

.header-decor {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 200px;
  pointer-events: none;
  display: none;
}

.header-decor-diamond {
  position: absolute;
  top: 50%;
  right: 28px;
  width: 18px;
  height: 18px;
  background: var(--highlight-color);
  transform: translateY(-50%) rotate(45deg);
  opacity: 0.45;
}

.header-decor-diamond-sm {
  position: absolute;
  top: calc(50% + 10px);
  right: 58px;
  width: 10px;
  height: 10px;
  background: var(--primary-color);
  transform: rotate(45deg);
  opacity: 0.2;
}

.header-decor-line {
  position: absolute;
  top: 50%;
  right: 90px;
  width: 50px;
  height: 1px;
  background: var(--highlight-color);
  transform: translateY(-50%);
  opacity: 0.35;
}

@media (min-width: 768px) {
  .header-decor { display: block; }
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  padding: 0 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--primary-color);
  font-family: var(--main-font);
  font-size: 1.5rem;
  font-weight: 700;
  text-decoration: none;
  width: fit-content;
  text-transform: uppercase;
  letter-spacing: 3px;
}

.logo-icon {
  width: 34px;
  height: 34px;
  background: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: white;
  border-radius: 0;
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
  flex-shrink: 0;
}

/* MAIN */
main {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 1.6rem 0;
  justify-content: center;
}

.product-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: flex-start;
}

@media (min-width: 768px) {
  .product-section {
    grid-template-columns: 1fr 1fr;
  }
}

.product-left {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.product-image-container {
  display: flex;
  justify-content: center;
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 14px var(--shadow-color);
  border: 1px solid var(--border-color);
  padding: 0.9rem;
}

.product-image {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

.guarantee-block {
  background: var(--light-color);
  padding: 1rem 1.1rem;
  border-radius: 8px;
  border-right: 3px solid var(--primary-color);
  border-left: 3px solid var(--primary-color);
}

.guarantee-block h3 {
  font-family: var(--main-font);
  color: var(--primary-color);
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.guarantee-block p {
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--text-color);
}

/* FEATURES ICONS — large icon above, stacked vertically in 2 rows */
.features-icons {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.55rem;
}

.feature-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.75rem;
  background: white;
  border-radius: 6px;
  box-shadow: 0 1px 5px var(--shadow-color);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--accent-color);
  transition: all 0.2s ease;
}

.feature-item:hover {
  border-left-color: var(--primary-color);
  background: var(--light-color);
}

.feature-item .feature-icon {
  width: 30px;
  height: 30px;
  background: var(--light-color);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.feature-item span {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-color);
  font-family: var(--alt-font);
  text-transform: uppercase;
  letter-spacing: 0.2px;
  line-height: 1.3;
}

.cart-button {
  background: var(--primary-color);
  color: white;
  padding: 0.85rem 1.4rem;
  border: none;
  border-radius: 6px;
  font-size: 0.93rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.22s ease;
  text-decoration: none;
  display: block;
  text-align: center;
  box-shadow: 0 3px 8px var(--shadow-color);
  font-family: var(--main-font);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.cart-button:hover {
  background: var(--hover-color);
  transform: translateY(-1px);
}

/* PRODUCT RIGHT */
.product-right h1 {
  font-family: var(--main-font);
  font-size: 1.9rem;
  color: var(--primary-color);
  margin-bottom: 0.55rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 3px;
}

.price {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--accent-color);
  margin: 0.55rem 0;
  font-family: var(--main-font);
}

.product-description {
  font-size: 0.86rem;
  margin-bottom: 0.9rem;
  line-height: 1.68;
  color: var(--text-color);
}

.product-description p + p {
  margin-top: 0.55rem;
}

.highlight-text {
  background: var(--primary-color);
  color: white;
  padding: 0.9rem 1.1rem;
  border-radius: 6px;
  font-weight: 700;
  margin: 0.9rem 0;
  text-align: center;
  font-size: 0.9rem;
  box-shadow: 0 3px 8px var(--shadow-color);
  font-family: var(--main-font);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* FEATURES LIST — two-column grid */
.features-list {
  list-style: none;
  margin: 0.7rem 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.features-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem;
  background: white;
  border-radius: 6px;
  box-shadow: 0 1px 5px var(--shadow-color);
  border: 1px solid var(--border-color);
  font-size: 0.8rem;
  transition: border-color 0.2s ease;
  line-height: 1.4;
}

.features-list li:hover {
  border-color: var(--accent-color);
}

.feature-check {
  width: 18px;
  height: 18px;
  min-width: 18px;
  background: var(--accent-color);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: bold;
  font-size: 0.65rem;
  margin-top: 1px;
}

/* PROMO BLOCK — two rows, icon left, accent background cards */
.promo-block {
  background: var(--dark-color);
  color: white;
  padding: 2rem 1rem;
}

.promo-block-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.promo-block h2 {
  font-family: var(--main-font);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--highlight-color);
}

.promo-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.8rem;
}

@media (min-width: 768px) {
  .promo-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.promo-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.1rem 1.2rem;
  background: rgba(255,255,255,0.06);
  border-radius: 8px;
  border: 1px solid rgba(212, 184, 232, 0.15);
}

.promo-card-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.promo-card-body h3 {
  font-family: var(--main-font);
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--highlight-color);
}

.promo-card-body p {
  font-size: 0.81rem;
  line-height: 1.55;
  color: rgba(255,255,255,0.78);
}

/* TESTIMONIALS */
.testimonials {
  background: #DDF0EE;
  color: var(--text-color);
  padding: 2rem 1rem;
}

.testimonials h2 {
  font-family: var(--main-font);
  text-align: center;
  margin-bottom: 1.4rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.testimonial {
  background: white;
  padding: 1.1rem;
  border-radius: 8px;
  border-top: 3px solid var(--primary-color);
  box-shadow: 0 2px 8px var(--shadow-color);
  transition: transform 0.22s ease;
}

.testimonial:hover {
  transform: translateY(-2px);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0.7rem;
}

.testimonial-icon {
  width: 36px;
  height: 36px;
  background: var(--light-color);
  border: 1.5px solid var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: 700;
  font-size: 0.88rem;
  font-family: var(--main-font);
  color: var(--primary-color);
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.testimonial-location {
  font-size: 0.76rem;
  color: var(--text-color);
  opacity: 0.7;
}

.testimonial p {
  line-height: 1.6;
  font-size: 0.83rem;
}

/* FOOTER */
footer {
  background: var(--dark-color);
  color: white;
  padding: 1.4rem 1rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  align-items: center;
  padding-bottom: 0.9rem;
}

@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .footer-nav { justify-content: flex-end; }
}

.footer-content .logo { color: white; }
.footer-content .logo-icon {
  background: white;
  color: var(--dark-color);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%);
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.78);
  text-decoration: none;
  transition: color 0.22s ease;
  font-size: 0.8rem;
}

.footer-nav a:hover { color: var(--highlight-color); }

.footer-credit {
  text-align: center;
  padding-top: 0.9rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.76rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-credit a {
  color: var(--highlight-color);
  text-decoration: none;
}