* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #1f2937;
  background: #ffffff;
  line-height: 1.6;
}

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

/* Utility Classes */

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

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

.mt-0 {
  margin-top: 0;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-large {
  margin-bottom: 40px;
}

/* Header */

.seo-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.seo-header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.seo-brand {
  font-size: 22px;
  font-weight: 800;
  color: #0f172a;
  text-decoration: none;
}

.seo-menu {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.seo-menu a {
  color: #334155;
  text-decoration: none;
  font-weight: 600;
}

.seo-menu a:hover {
  color: #0f766e;
}

/* Zones */

.seo-zone {
  padding: 36px 24px;
}

.seo-container {
  max-width: 1180px;
  margin: 0 auto;
}

.seo-welcome {
  background: linear-gradient(135deg, #0f766e, #0f172a);
  color: #ffffff;
  padding: 92px 24px;
  text-align: center;
}

.seo-welcome h1,
.seo-welcome h2 {
  font-size: clamp(34px, 6vw, 64px);
  margin: 0 0 18px;
}

.seo-welcome p {
  max-width: 760px;
  margin: 0 auto;
  font-size: 20px;
}

/* Typography */

.seo-zone-collapse-top {
  padding-top: 0;
}

.seo-heading {
  margin: 0 0 18px;
  color: #0f172a;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.15;
}

.seo-paragraph {
  margin: 0 0 22px;
  font-size: 18px;
}

.seo-divider {
  width: 100%;
  height: 1px;
  margin: 28px 0;
  background: linear-gradient(
    to right,
    transparent 0%,
    #d1d5db 15%,
    #9ca3af 50%,
    #d1d5db 85%,
    transparent 100%
  );
}

/* Two Column Zone */

.seo-two-column {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
  gap: 36px;
  align-items: start;
}

.seo-left-column,
.seo-right-column {
  min-width: 0;
}

/* Cards / Images */

.seo-card {
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 26px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
  margin-bottom: 26px;
}

.seo-image-card {
  overflow: hidden;
  border-radius: 18px;
  margin-bottom: 26px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

.seo-image-card img {
  width: 100%;
}

/* Keyword Column */

.seo-keyword-card {
  overflow-y: auto;
  background: #f8fafc;
  border: 1px solid #e5e7eb;
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.seo-keyword-title {
  margin-bottom: 18px;
  text-align: center;
}

.seo-keyword-title a {
  display: block;
  background: #0f766e;
  color: #ffffff;
  padding: 14px 18px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 800;
}

.seo-keyword-links p {
  margin: 0;
}

.seo-keyword-links a {
  display: block;
  padding: 10px 0;
  color: #334155;
  text-decoration: none;
  border-bottom: 1px solid #e5e7eb;
}

.seo-keyword-links a:hover {
  color: #0f766e;
}

/* Buttons / Phone */

.seo-button,
.seo-phone-link {
  display: inline-block;
  background: #0f766e;
  color: #ffffff;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.seo-button:hover,
.seo-phone-link:hover {
  background: #115e59;
}

/* Contact */

.seo-contact {
  background: #f8fafc;
}

/* Footer */

.seo-footer {
  background: #0f172a;
  color: #ffffff;
  text-align: center;
  padding: 30px 24px;
}

/* Mobile */

@media (max-width: 900px) {
  .seo-header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .seo-two-column {
    grid-template-columns: 1fr;
  }

  /* The keyword column is desktop-only by design. It stays in the HTML — so the links remain
     in the source for crawlers — but is not part of the phone experience. */
  .seo-right-column {
    display: none;
  }

  .seo-keyword-card {
    height: auto !important;
    max-height: none !important;
    overflow-y: visible;
  }

  /* A height/width configured for the desktop keyword column is emitted inline, which would
     otherwise beat this stylesheet and leave a fixed-height scroll box on a phone. */
  .seo-keyword-links {
    height: auto !important;
    width: auto !important;
    max-height: none !important;
    overflow-y: visible !important;
  }
}