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

body {
  font-family: Arial, sans-serif;
  background: #eef3f9;
  color: #111;
}

/* =========================
   CATALOG SECTION
========================= */
.catalog-section {
  width: 100%;
  padding: 70px 20px 80px;
  background: linear-gradient(135deg, #eef3f9 0%, #dde7f3 100%);
  text-align: center;
  overflow: hidden;
}

.catalog-container {
  max-width: 1280px;
  margin: 0 auto;
}

/* =========================
   HEADER
========================= */
.catalog-header {
  max-width: 760px;
  margin: 0 auto 40px;
}

.catalog-header h2 {
  margin-bottom: 10px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.1;
  color: #0a1628;
  font-weight: 700;
}

.catalog-header p {
  font-size: clamp(1rem, 1.5vw, 1.2rem);
  color: #6b7280;
  line-height: 1.6;
}

/* =========================
   CARD
========================= */
.catalog-card {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  min-height: 440px;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;

  padding: 42px 44px;
  border-radius: 30px;
  overflow: hidden;

  background: url("card-back.webp") center center / cover no-repeat;
  box-shadow: 0 18px 40px rgba(88, 110, 145, 0.14);
}

/* overlay for readability */
.catalog-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    90deg,
    rgba(22, 36, 61, 0.42) 0%,
    rgba(34, 52, 84, 0.24) 38%,
    rgba(58, 79, 117, 0.08) 100%
  );
  z-index: 1;
}

.catalog-content,
.catalog-image {
  position: relative;
  z-index: 2;
}

/* =========================
   CONTENT
========================= */
.catalog-content {
  flex: 1 1 50%;
  max-width: 500px;
  text-align: left;
}

.catalog-content .badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(135deg, #3b82f6, #2563eb);
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.18);
}

.catalog-content h3 {
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 4vw, 4.4rem);
  line-height: 1.05;
  font-weight: 700;
  color: #ffffff;
}

.catalog-content p {
  margin-bottom: 28px;
  max-width: 470px;
  font-size: clamp(1rem, 1.3vw, 1.16rem);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.92);
}

/* =========================
   BUTTON
========================= */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 28px;
  border-radius: 999px;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #3b82f6, #1d4ed8);
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 28px rgba(37, 99, 235, 0.28);
}

/* =========================
   IMAGE
========================= */
.catalog-image {
  flex: 1 1 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.catalog-image img {
  display: block;
  width: 100%;
  max-width: 430px;
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 16px 28px rgba(50, 68, 100, 0.10));
  transition: transform 0.35s ease;
}

.catalog-image img:hover {
  transform: scale(1.03);
}

/* =========================
   LARGE TABLET
========================= */
@media (max-width: 1100px) {
  .catalog-section {
    padding: 60px 20px 70px;
  }

  .catalog-card {
    min-height: 400px;
    padding: 34px 30px;
    gap: 24px;
    background-position: center;
  }

  .catalog-image img {
    max-width: 360px;
  }
}

/* =========================
   TABLET
========================= */
@media (max-width: 900px) {
  .catalog-header {
    margin-bottom: 32px;
  }

  .catalog-card {
    flex-direction: column;
    text-align: center;
    min-height: auto;
    padding: 32px 22px;
    gap: 28px;
    background-position: center;
  }

  .catalog-card::before {
    background: linear-gradient(
      180deg,
      rgba(22, 36, 61, 0.44) 0%,
      rgba(34, 52, 84, 0.20) 55%,
      rgba(58, 79, 117, 0.10) 100%
    );
  }

  .catalog-content {
    max-width: 100%;
    text-align: center;
  }

  .catalog-content p {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .catalog-image {
    width: 100%;
  }

  .catalog-image img {
    max-width: 320px;
  }
}

/* =========================
   MOBILE
========================= */
@media (max-width: 600px) {
  .catalog-section {
    padding: 50px 14px 60px;
  }

  .catalog-header {
    margin-bottom: 24px;
  }

  .catalog-card {
    padding: 24px 16px;
    border-radius: 22px;
    gap: 20px;
    background-position: center;
  }

  .catalog-card::before {
    border-radius: 22px;
  }

  .catalog-content .badge {
    margin-bottom: 16px;
    padding: 8px 14px;
    font-size: 0.84rem;
  }

  .catalog-content h3 {
    font-size: clamp(2rem, 8vw, 3rem);
    margin-bottom: 14px;
  }

  .catalog-content p {
    margin-bottom: 22px;
    font-size: 1rem;
  }

  .btn-primary {
    width: 100%;
    max-width: 240px;
    padding: 14px 20px;
  }

  .catalog-image img {
    max-width: 250px;
  }
}