:root {
  --bg: #f5f7fb;
  --surface: #ffffff;
  --surface-soft: #eef5fb;
  --text: #243246;
  --muted: #5f6f80;
  --line: #d6e1ea;
  --blue: #1475bc;
  --blue-dark: #0f5e99;
  --cyan: #22d8d4;
  --teal: #16b8ca;
  --green: #a8d61d;
  --shadow: 0 20px 50px rgba(20, 117, 188, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 216, 212, 0.16), transparent 25%),
    radial-gradient(circle at top right, rgba(168, 214, 29, 0.12), transparent 20%),
    linear-gradient(180deg, #fbfdff 0%, #f4f8fc 100%);
}

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 36px 20px 56px;
}

.site-header {
  padding: 40px 36px 44px;
  margin-bottom: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.98), rgba(239, 247, 252, 0.96));
  box-shadow: var(--shadow);
}

.brand-lockup {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  text-align: center;
  width: 100%;
}

.brand-symbol-wrap {
  width: 160px;
  height: 160px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background:
    radial-gradient(circle at center, rgba(255, 255, 255, 0.92), rgba(238, 245, 251, 0.86));
  box-shadow:
    inset 0 0 0 1px rgba(20, 117, 188, 0.08),
    0 18px 36px rgba(20, 117, 188, 0.12);
  padding: 14px;
}

.brand-logo {
  width: min(320px, 42vw);
  max-width: 100%;
  height: auto;
  display: block;
  mix-blend-mode: multiply;
  filter: drop-shadow(0 12px 22px rgba(20, 117, 188, 0.12)) saturate(1.02);
  flex: 0 1 auto;
}

.brand-symbol-only {
  width: 100%;
  max-width: 100%;
  height: auto;
  margin: 0;
  object-fit: contain;
  mix-blend-mode: multiply;
  filter: drop-shadow(0 10px 18px rgba(20, 117, 188, 0.1)) saturate(1.02);
}

.brand-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.brand-name {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.brand-name-primary {
  color: var(--cyan);
}

.brand-name-secondary {
  color: #5a5e65;
}

.brand-tagline {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.hero-copy {
  max-width: 760px;
  margin: 34px auto 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-copy h1 {
  margin: 0 0 16px;
  max-width: 11ch;
  font-size: clamp(2.2rem, 4.6vw, 3.9rem);
  line-height: 1.02;
  text-align: center;
}

.subtitle {
  max-width: 560px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 1rem;
  text-align: center;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 30px;
}

.filter-button {
  padding: 11px 18px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.filter-button:hover {
  transform: translateY(-1px);
  border-color: rgba(20, 117, 188, 0.3);
  background: #eef8ff;
}

.filter-button.active {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  border-color: transparent;
  color: #ffffff;
}

.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.page-shell {
  max-width: 1160px;
  margin: 0 auto;
  padding: 36px 20px 56px;
}

.product {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 22px;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: 0 18px 40px rgba(36, 50, 70, 0.08);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.product:hover {
  transform: translateY(-4px);
  border-color: rgba(20, 117, 188, 0.22);
  box-shadow: 0 24px 48px rgba(36, 50, 70, 0.12);
}

.product h2 {
  margin: 0 0 14px;
  font-size: 1.22rem;
  line-height: 1.35;
  text-align: center;
}

.product img {
  display: block;
  width: 100%;
  max-width: 200px;
  height: auto;
  margin: 0 auto 18px;
  padding: 10px;
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(238, 245, 251, 0.92));
  box-shadow: inset 0 0 0 1px rgba(20, 117, 188, 0.06);
}

.product p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.65;
  text-align: center;
}

.product-link {
  display: inline-block;
  align-self: center;
  margin-top: auto;
  min-width: 154px;
  padding: 12px 18px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #ffffff;
  text-decoration: none;
  border-radius: 10px;
  transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 12px 24px rgba(20, 117, 188, 0.2);
  text-align: center;
  font-weight: 700;
}

.product-link:hover {
  background: var(--blue-dark);
  transform: translateY(-1px);
}

.product-link-secondary {
  background: #edf6ff;
  color: var(--blue-dark);
  box-shadow: none;
}

.product-link-secondary:hover {
  background: #dcefff;
}

.product-link.is-disabled {
  pointer-events: none;
  opacity: 0.55;
  box-shadow: none;
}

.articles-section {
  margin-top: 42px;
}

.articles-section h2 {
  margin: 0 0 8px;
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.articles-subtitle {
  margin: 0 0 18px;
  text-align: center;
  color: var(--muted);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.article-preview {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 10px 24px rgba(36, 50, 70, 0.06);
}

.article-preview-image {
  display: block;
  width: 100%;
  height: 170px;
  object-fit: cover;
  border-radius: 12px;
  margin-bottom: 12px;
}

.article-meta {
  margin: 0 0 8px;
  color: var(--blue-dark);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.article-preview h3 {
  margin: 0 0 10px;
  font-size: 1.15rem;
  line-height: 1.3;
}

.article-preview p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.6;
}

.article-link {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 8px;
  background: #edf6ff;
  color: var(--blue-dark);
  text-decoration: none;
  font-weight: 700;
}

.article-page {
  max-width: 920px;
  margin: 0 auto;
}

.article-card {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 12px 28px rgba(36, 50, 70, 0.08);
}

.article-card h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.08;
}

.article-intro {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.article-hero-image {
  margin: 0 0 20px;
  padding: 14px;
  border-radius: 14px;
  background: #eef5fb;
}

.article-hero-image img {
  display: block;
  width: 100%;
  max-height: 360px;
  object-fit: contain;
  margin: 0 auto;
}

.article-content h2 {
  margin: 20px 0 10px;
  font-size: 1.4rem;
}

.article-content p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.75;
}

.product-page {
  max-width: 980px;
  margin: 0 auto;
}

.product-backlink {
  display: inline-flex;
  margin-bottom: 18px;
  color: var(--blue-dark);
  text-decoration: none;
}

.product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(260px, 0.8fr);
  gap: 28px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 18px 40px rgba(36, 50, 70, 0.08);
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-category {
  display: inline-flex;
  margin-bottom: 12px;
  padding: 8px 12px;
  border-radius: 999px;
  background: #eef8ff;
  color: var(--blue-dark);
  font-size: 0.82rem;
  font-weight: 700;
}

.product-copy h1 {
  margin: 0 0 14px;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}

.product-description,
.product-seo-copy {
  color: var(--muted);
  line-height: 1.7;
}

.product-description {
  margin: 0 0 14px;
}

.product-seo-copy {
  margin: 0 0 22px;
}

.product-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.product-showcase {
  display: flex;
  align-items: center;
}

.product-showcase-media {
  width: 100%;
  padding: 18px;
  border-radius: 20px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(238, 245, 251, 0.92));
  box-shadow: inset 0 0 0 1px rgba(20, 117, 188, 0.06);
}

.product-showcase-media img {
  display: block;
  width: 100%;
  height: auto;
  margin: 0 auto;
}

@media (max-width: 760px) {
  .brand-lockup {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .brand-logo {
    width: min(280px, 70vw);
  }

  .brand-symbol-wrap {
    width: 136px;
    height: 136px;
    padding: 12px;
  }

  .brand-symbol-only {
    width: 100%;
  }

  .brand-name {
    font-size: 2.5rem;
  }

  .product-hero {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .container {
    padding: 24px 16px 40px;
  }

  .page-shell {
    padding: 24px 16px 40px;
  }

  .site-header {
    padding: 28px 20px 32px;
    border-radius: 22px;
  }

  .filters {
    flex-direction: column;
  }

  .filter-button {
    width: 100%;
  }

  .product-actions {
    flex-direction: column;
  }

  .product-link,
  .product-link-secondary {
    width: 100%;
    text-align: center;
  }
}