/* =========================================================
   Used On-Premise PBX Guide
   Page-specific styling for:
   /pros-and-cons-of-buying-a-refurbished-on-premise-pbx.html
   ========================================================= */

/* Keep padding and borders within an element's declared width. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* ---------- Breadcrumbs ---------- */

.breadcrumbs {
  font-size: 0.90rem;
  margin: 18px 0 10px;
}

.breadcrumbs ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.breadcrumbs li {
  display: inline;
}

.breadcrumbs li + li::before {
  content: " / ";
  padding: 0 4px;
}

.updated {
  color: #555;
  font-size: 0.92rem;
  margin: 0 0 20px;
}

/* ---------- General Guide Panels ---------- */

.quick-answer,
.author-box,
.faq-box,
.toc-box,
.content-section,
.installation-callout,
.related-guides {
  box-sizing: border-box;
  clear: both;
  margin: 24px 0;
  padding: 18px 22px;
  border: 1px solid #d7d7d7;
  border-radius: 4px;
}

.quick-answer {
  background: #f4f8f4;
  border-left: 5px solid #4a7b45;
}

.toc-box {
  background: #fafafa;
}

.toc-box ul,
.quick-answer ul,
.faq-box ul {
  margin-bottom: 0;
}

.author-box {
  background: #fafafa;
}

.related-guides {
  padding: 18px 22px;
  background: #fafafa;
  border-top: 3px solid #4a7b45;
}

/* ---------- Advantages and Risks ---------- */

.content-section {
  margin: 30px 0;
  padding: 26px 28px;
}

.content-section h2 {
  margin-top: 0;
}

.advantages-section {
  background: #f1f8f0;
  border-color: #b9d5b5;
  border-left: 6px solid #4a7b45;
}

.advantages-section h2,
.advantages-section h3 {
  color: #244b22;
}

.risks-section {
  background: #fff3f3;
  border-color: #e6bbbb;
  border-left: 6px solid #a6403a;
}

.risks-section h2,
.risks-section h3 {
  color: #7b2925;
}

/* ---------- Tables ---------- */

.table-wrap {
  overflow-x: auto;
  margin: 24px 0;
}

.grnTable {
  width: 100%;
}

/* ---------- Brand Cards ---------- */

.brand-card-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  clear: both;
  margin: 26px 0 32px;
}

.brand-card {
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 22px;
  background: #ffffff;
  border: 1px solid #d6d6d6;
  border-top: 5px solid #4a7b45;
  border-radius: 4px;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08);
}

.brand-card h3 {
  margin: 0 0 8px;
  color: #244b22;
}

.brand-card .brand-models {
  margin: 0 0 18px;
  color: #555;
  font-size: 0.95rem;
}

.brand-card .brand-label {
  display: block;
  margin-bottom: 4px;
  color: #244b22;
  font-weight: bold;
}

.brand-card p {
  margin: 0 0 16px;
}

.brand-card p:last-of-type {
  margin-bottom: 0;
}

.brand-card .brand-link {
  margin-top: auto;
  padding-top: 16px;
}

.brand-card .brand-link a {
  font-weight: bold;
}

.brand-card--legacy {
  border-top-color: #8a5b2b;
}

.brand-card--modern {
  border-top-color: #356b9b;
}

.brand-card--caution {
  border-top-color: #9b3932;
}

/* ---------- Telecom Consultant Image ---------- */

.vendor-solution-callout {
  overflow: hidden;
}

.vendor-consultant-image {
  float: left;
  width: 38%;
  max-width: 250px;
  height: auto;
  margin: 2px 20px 12px 0;
  border: 1px solid #c6d7c3;
  border-radius: 3px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.12);
}

/* ---------- Installation Callout ---------- */

.installation-callout {
  margin: 30px 0;
  padding: 24px 26px;
  background: #f7f7f7;
  border-color: #d7d7d7;
  border-left: 6px solid #356b9b;
}

.installation-callout h2 {
  margin-top: 0;
  color: #294f73;
}

.installation-image {
  float: right;
  width: 42%;
  max-width: 486px;
  height: auto;
  margin: 2px 0 14px 22px;
  border: 1px solid #c8c8c8;
  border-radius: 3px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.12);
}

/* ---------- Advertising ---------- */

.in-article-ad {
  clear: both;
  margin: 28px 0;
  min-height: 90px;
}

/* ---------- Footer ---------- */

footer {
  clear: both;
  width: 100%;
  margin: 0;
}

footer > .container {
  width: 100%;
}

/* ---------- Utility ---------- */

.clearfix::after {
  content: "";
  display: table;
  clear: both;
}

/* ---------- Mobile Layout ---------- */

@media (max-width: 800px) {
  .brand-card-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .brand-card {
    padding: 18px;
  }
}

@media (max-width: 768px) {
  .content-section {
    margin: 24px 0;
    padding: 20px 18px;
  }

  .quick-answer,
  .author-box,
  .faq-box,
  .toc-box,
  .related-guides {
    padding: 15px;
  }
}

@media (max-width: 700px) {
  .installation-callout {
    padding: 20px 18px;
  }

  .installation-image {
    float: none;
    display: block;
    width: 100%;
    max-width: 486px;
    margin: 0 auto 16px;
  }
}

@media (max-width: 600px) {
  .vendor-consultant-image {
    float: none;
    display: block;
    width: 100%;
    max-width: 426px;
    margin: 0 auto 16px;
  }
}