*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  padding: 0;
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  color: #0f172a;
  background-color: #f9fafb;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.vs-container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.vs-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(249, 250, 251, 0.9);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid #e5e7eb;
}

.vs-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.5rem;
}

.vs-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.vs-logo-mark {
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid #0f766e;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #0f766e;
}

.vs-logo-text {
  color: #0f172a;
}

.vs-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.vs-nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0;
  margin: 0;
}

.vs-nav-list a {
  font-size: 0.95rem;
  color: #4b5563;
  padding-bottom: 0.15rem;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}

.vs-nav-list a:hover {
  color: #0f172a;
  border-color: #0f766e;
}

.vs-nav-list a.is-active {
  color: #0f172a;
  border-color: #0f766e;
}

.vs-nav-toggle {
  display: none;
  border: none;
  background: transparent;
  padding: 0;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.25rem;
}

.vs-nav-toggle span {
  display: block;
  width: 1.2rem;
  height: 1px;
  background-color: #0f172a;
  transition: transform 160ms ease, opacity 160ms ease;
}

.vs-main {
  flex: 1;
}

.vs-hero {
  padding: 3rem 0 1.5rem;
  position: relative;
}

.vs-hero-inner {
  display: flex;
  align-items: flex-end;
}

.vs-hero-text h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 3vw, 2.4rem);
  letter-spacing: 0.03em;
  font-weight: 600;
}

.vs-hero-text p {
  margin: 0;
  max-width: 32rem;
  color: #6b7280;
  line-height: 1.6;
}

.vs-hero::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0.4rem;
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(15, 118, 110, 0.55),
    rgba(148, 163, 184, 0.1),
    transparent
  );
  pointer-events: none;
}

.vs-blog-layout {
  padding: 0 0 3.5rem;
}

.vs-grid {
  display: grid;
  grid-template-columns: minmax(0, 2.6fr) minmax(0, 4fr);
  gap: 3rem;
  align-items: flex-start;
}

.vs-sidebar {
  position: sticky;
  top: 4.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.vs-card {
  border-radius: 1.25rem;
  border: 1px solid #e5e7eb;
  padding: 1.3rem 1.4rem;
  background-color: #ffffff;
  box-shadow: 0 18px 45px rgba(15, 23, 42, 0.04);
  transition: box-shadow 160ms ease, transform 120ms ease,
    border-color 140ms ease;
}

.vs-card--soft {
  box-shadow: none;
}

.vs-card:hover {
  box-shadow: 0 20px 55px rgba(15, 23, 42, 0.06);
  transform: translateY(-1px);
  border-color: #d1fae5;
}

.vs-sidebar-heading {
  font-size: 0.9rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #9ca3af;
  margin: 0 0 0.9rem;
}

.vs-category-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.vs-category-list button {
  width: 100%;
  text-align: left;
  border-radius: 999px;
  padding: 0.4rem 0.75rem;
  border: none;
  background-color: transparent;
  font-size: 0.9rem;
  color: #4b5563;
  cursor: pointer;
  transition: background-color 140ms ease, color 140ms ease;
}

.vs-category-list button:hover {
  background-color: #f3f4f6;
}

.vs-category-list button.is-active {
  background-color: #0f766e;
  color: #ecfeff;
}

.vs-field {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.vs-field-label {
  font-size: 0.8rem;
  color: #9ca3af;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.vs-field input,
.vs-field textarea {
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  padding: 0.55rem 0.9rem;
  font-size: 0.9rem;
  outline: none;
  background-color: #f9fafb;
  transition: background-color 120ms ease, border-color 120ms ease,
    box-shadow 120ms ease;
}

.vs-field textarea {
  resize: vertical;
  min-height: 120px;
  border-radius: 1rem;
}

.vs-field input:focus,
.vs-field textarea:focus {
  background-color: #ffffff;
  border-color: #0f766e;
  box-shadow: 0 0 0 1px rgba(15, 118, 110, 0.15);
}

.vs-blog-listing {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.vs-posts-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
}

.vs-post-card {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 2.2fr);
  gap: 1.3rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid #e5e7eb;
  align-items: center;
}

.vs-post-card:last-child {
  border-bottom: none;
}

.vs-post-card-image {
  border-radius: 1.1rem;
  overflow: hidden;
  background-color: #e5e7eb;
}

.vs-post-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.01);
  transition: transform 400ms ease;
}

.vs-post-card:hover .vs-post-card-image img {
  transform: scale(1.04);
}

.vs-post-meta {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: #9ca3af;
  margin-bottom: 0.4rem;
}

.vs-pill {
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  border: 1px solid #d1fae5;
  background-color: #ecfdf5;
  color: #047857;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.vs-post-card h2 {
  margin: 0 0 0.35rem;
  font-size: 1.1rem;
  font-weight: 500;
}

.vs-post-card p {
  margin: 0 0 0.7rem;
  color: #6b7280;
  line-height: 1.6;
}

.vs-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.9rem;
  color: #0f766e;
  text-decoration: none;
}

.vs-link-arrow svg {
  width: 0.85rem;
  height: 0.85rem;
  transition: transform 160ms ease;
}

.vs-link-arrow:hover svg {
  transform: translateX(2px);
}

.vs-pagination {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.vs-page-btn {
  min-width: 2rem;
  height: 2rem;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  background-color: #ffffff;
  font-size: 0.85rem;
  color: #4b5563;
  cursor: pointer;
  padding: 0 0.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 120ms ease, border-color 120ms ease,
    color 120ms ease;
}

.vs-page-btn:hover:not(:disabled) {
  background-color: #f3f4f6;
}

.vs-page-btn.is-active {
  background-color: #0f766e;
  border-color: #0f766e;
  color: #ecfeff;
}

.vs-page-btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.vs-muted {
  color: #9ca3af;
  font-size: 0.85rem;
}

.vs-social-widget .vs-social-list {
  display: flex;
  gap: 0.7rem;
  margin-top: 0.75rem;
}

.vs-social-list a {
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 140ms ease, border-color 140ms ease,
    transform 140ms ease;
}

.vs-social-list a:hover {
  border-color: #0f766e;
  background-color: #ecfdf5;
  transform: translateY(-1px);
}

.vs-social-list svg {
  width: 1.05rem;
  height: 1.05rem;
  fill: #4b5563;
}

.vs-footer {
  border-top: 1px solid #e5e7eb;
  padding: 1.3rem 0 1.6rem;
  background-color: #f9fafb;
}

.vs-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.85rem;
}

.vs-footer-links {
  display: flex;
  gap: 0.9rem;
}

.vs-footer-links a {
  color: #6b7280;
}

.vs-footer-links a:hover {
  color: #0f172a;
}

/* Post page */
.vs-article-wrap {
  padding: 3rem 0 3.5rem;
}

.vs-article-header {
  margin-bottom: 2rem;
}

.vs-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.85rem;
  color: #9ca3af;
}

.vs-article-header h1 {
  margin: 0.75rem 0 0.5rem;
  font-size: clamp(1.8rem, 3vw, 2.3rem);
  font-weight: 600;
}

.vs-article-header p {
  margin: 0;
  color: #6b7280;
  max-width: 40rem;
  line-height: 1.7;
}

.vs-article-body {
  display: grid;
  grid-template-columns: minmax(0, 3.5fr) minmax(0, 2.1fr);
  gap: 3rem;
}

.vs-article-main {
  line-height: 1.8;
  font-size: 0.98rem;
  color: #4b5563;
}

.vs-article-main p:first-of-type {
  font-size: 1.02rem;
  color: #374151;
}

.vs-article-main h2 {
  font-size: 1.2rem;
  margin: 1.9rem 0 0.6rem;
  color: #111827;
  position: relative;
  padding-left: 0.9rem;
}

.vs-article-main h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.2rem;
  bottom: 0.2rem;
  width: 2px;
  border-radius: 999px;
  background: linear-gradient(
    180deg,
    rgba(15, 118, 110, 0.85),
    rgba(16, 185, 129, 0.25)
  );
}

.vs-article-main p {
  margin: 0 0 1rem;
}

.vs-article-main ul {
  padding-left: 1.2rem;
  margin: 0 0 1.1rem;
}

.vs-article-main li {
  margin-bottom: 0.35rem;
}

.vs-article-main a {
  color: #0f766e;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

.vs-article-main a:hover {
  color: #115e59;
}

.vs-article-aside {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.vs-article-cover {
  border-radius: 1.4rem;
  overflow: hidden;
  background-color: #e5e7eb;
  margin-bottom: 1.5rem;
}

.vs-article-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.vs-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.vs-tag {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid #e5e7eb;
  font-size: 0.78rem;
  color: #6b7280;
}

.vs-subtle-section-title {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #9ca3af;
  margin-bottom: 0.75rem;
}

.vs-related-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.vs-related-list a {
  font-size: 0.9rem;
  color: #4b5563;
}

.vs-related-list a:hover {
  color: #0f766e;
}

/* Generic sections (About / Contact / Products) */
.vs-page-section {
  padding: 3rem 0 3.5rem;
}

.vs-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.4fr);
  gap: 3rem;
  align-items: flex-start;
}

.vs-page-title {
  font-size: clamp(1.8rem, 3vw, 2.2rem);
  margin: 0 0 0.7rem;
}

.vs-page-subtitle {
  max-width: 32rem;
  color: #6b7280;
  margin: 0 0 1.4rem;
  line-height: 1.7;
}

.vs-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: 1px solid #0f766e;
  background-color: #0f766e;
  color: #ecfeff;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 140ms ease, border-color 140ms ease,
    transform 90ms ease, box-shadow 90ms ease;
}

.vs-button:hover {
  background-color: #115e59;
  border-color: #115e59;
  box-shadow: 0 12px 28px rgba(15, 118, 110, 0.25);
  transform: translateY(-1px);
}

.vs-button:active {
  transform: translateY(0);
  box-shadow: none;
}

.vs-button--ghost {
  background-color: transparent;
  color: #0f766e;
  box-shadow: none;
}

.vs-button--ghost:hover {
  background-color: #ecfdf5;
}

.vs-product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.5rem;
}

.vs-product-card {
  border-radius: 1.2rem;
  border: 1px solid #e5e7eb;
  padding: 1.1rem 1.1rem 1.2rem;
  background-color: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.vs-product-image {
  border-radius: 0.9rem;
  overflow: hidden;
  background-color: #e5e7eb;
}

.vs-product-name {
  font-size: 0.98rem;
  font-weight: 500;
  margin: 0;
}

.vs-product-meta {
  font-size: 0.8rem;
  color: #9ca3af;
}

.vs-product-desc {
  font-size: 0.9rem;
  color: #6b7280;
}

.vs-product-tagline {
  font-size: 0.85rem;
  color: #4b5563;
}

.vs-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  border: 1px solid #d1fae5;
  background-color: #ecfdf5;
  color: #047857;
  font-size: 0.75rem;
}

/* Animations / transitions */
.fade-in-up {
  opacity: 0;
  transform: translateY(8px);
  animation: fadeInUp 420ms ease forwards;
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 900px) {
  .vs-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }

  .vs-sidebar {
    position: static;
    flex-direction: row;
    overflow-x: auto;
  }

  .vs-sidebar .vs-card {
    min-width: 260px;
  }

  .vs-article-body,
  .vs-page-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .vs-product-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .vs-header-inner {
    padding-inline: 1.25rem;
  }

  .vs-nav-toggle {
    display: inline-flex;
  }

  .vs-nav-list {
    position: fixed;
    inset-inline: 0;
    top: 3.25rem;
    background-color: rgba(249, 250, 251, 0.96);
    border-bottom: 1px solid #e5e7eb;
    padding: 0.8rem 1.5rem 1.2rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.8rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 170ms ease, opacity 170ms ease;
  }

  .vs-nav-list.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .vs-post-card {
    grid-template-columns: minmax(0, 1fr);
  }

  .vs-sidebar {
    flex-direction: column;
  }

  .vs-product-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .vs-footer-inner {
    flex-direction: column-reverse;
    align-items: flex-start;
  }
}