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

body {
  font-family: Arial, sans-serif;
  background: #f5f7fb;
  color: #1f2937;
  padding-bottom: 120px;
}

.back-home {
  position: fixed;
  top: 16px;
  left: 16px;
  background: #2563eb;
  color: #fff;
  padding: 10px 16px;
  border-radius: 30px;
  text-decoration: none;
  font-weight: 600;
  z-index: 1000;
}

.tech-wrapper {
  max-width: 1100px;
  margin: 90px auto 40px;
  background: #fff;
  padding: 40px;
  border-radius: 18px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
}

.tech-wrapper h1 {
  text-align: center;
  font-size: 34px;
  margin-bottom: 10px;
}

.intro-text {
  text-align: center;
  font-size: 15px;
  color: #555;
  margin-bottom: 30px;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.tech-card {
  background: #f9fbff;
  padding: 22px;
  border-radius: 14px;
  box-shadow: 0 10px 25px rgba(0,0,0,0.08);
}

.tech-card h3 {
  color: #0d47a1;
  margin-bottom: 8px;
}

.tech-card a {
  display: inline-block;
  margin-top: 10px;
  color: #2563eb;
  font-weight: 600;
  text-decoration: none;
}

.ad-box {
  margin: 35px 0;
  min-height: 250px;
  background: #fff7cc;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #666;
}

.content-box {
  margin-top: 40px;
}

.content-box h2 {
  margin-bottom: 10px;
}

.trust-line {
  margin-top: 25px;
  padding: 12px 16px;
  font-size: 13px;
  background: #fff7ed;
  border-left: 4px solid #fb923c;
}

.site-footer {
  text-align: center;
  padding: 20px;
  font-size: 13px;
  background: #fff;
  border-top: 1px solid #ddd;
}

.sticky-ad {
  position: fixed;
  bottom: 0;
  width: 100%;
  min-height: 90px;
  background: #fff;
  border-top: 1px solid #ddd;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px 20px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 6px 16px rgba(0,0,0,0.06);
  transition: all 0.25s ease;
}

.tech-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 30px rgba(0,0,0,0.12);
}

.tech-card h3 {
  font-size: 16px;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 6px;
}

.tech-card > p {
  font-size: 13.5px;
  color: #6b7280;
  margin-bottom: 12px;
}

.tech-card ul {
  list-style: none;
  padding-left: 0;
}

.tech-card li {
  margin-bottom: 10px;
}

/* CLICKABLE LINK */
.tech-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: #2563eb;
  text-decoration: none;
}

.tech-link:hover {
  text-decoration: underline;
  color: #1d4ed8;
}

/* Summary text */
.tech-card li p {
  font-size: 12.8px;
  color: #4b5563;
  margin-top: 2px;
}

/* ===============================
   BOTTOM DISCLAIMER (Professional)
   AdSense Safe + Trust Building
================================ */

.tech-disclaimer {
  max-width: 1100px;
  margin: 24px auto 40px;
  padding: 14px 18px;

  font-size: 14.5px;        /* ⬆ increased font size */
  line-height: 1.7;
  font-weight: 500;

  color: #374151;           /* dark grey – professional */
  background: #f8fafc;     /* very light neutral */
  border-top: 1px solid #e5e7eb;

  text-align: center;
}

/* subtle emphasis */
.tech-disclaimer::before {
  content: "ℹ️ ";
  font-weight: 600;
}

/* Mobile tuning */
@media (max-width: 768px) {
  .tech-disclaimer {
    font-size: 13.5px;
    margin: 20px 12px 32px;
    padding: 12px 14px;
  }
}

.tech-disclaimer {
  border-left: 4px solid #2563eb;
  text-align: left;
}

/* ===============================
   TECHNOLOGY CARDS – NEW LOOK
================================ */

.tech-cards-section {
  padding: 40px 20px;
  background: linear-gradient(180deg, #fff8db, #ffffff);
}

.tech-cards {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

.tech-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
  border-top: 4px solid #2563eb;
}

.tech-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 14px 32px rgba(0,0,0,0.15);
}

.tech-card h3 {
  font-size: 16.5px;
  margin-bottom: 6px;
  color: #0f172a;
}

.tech-card p {
  font-size: 13.5px;
  color: #475569;
  margin-bottom: 10px;
}

.tech-card a {
  display: block;
  font-size: 13.5px;
  color: #2563eb;
  text-decoration: none;
  font-weight: 500;
  margin-top: 6px;
}

.tech-card a:hover {
  text-decoration: underline;
}

/* Mobile */
@media (max-width: 768px) {
  .tech-card {
    padding: 16px;
  }
}

/* =====================================================
   GLOBAL RESET & BASE
===================================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background: #f4f7fb;
  color: #1f2937;
  line-height: 1.7;
}

/* =====================================================
   BACK TO HOME BUTTON
===================================================== */
.back-home {
  position: fixed;
  top: 16px;
  left: 16px;
  background: #2563eb;
  color: #ffffff;
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  z-index: 1000;
  box-shadow: 0 6px 16px rgba(0,0,0,0.2);
}

.back-home:hover {
  background: #1e40af;
}

/* =====================================================
   PAGE HEADER
===================================================== */
.tech-header {
  max-width: 1100px;
  margin: 90px auto 30px;
  padding: 0 20px;
  text-align: center;
}

.tech-header h1 {
  font-size: 34px;
  color: #0f172a;
  margin-bottom: 8px;
}

.tech-header p {
  font-size: 15.5px;
  color: #475569;
}

/* =====================================================
   ADS PLACEHOLDER (CLS SAFE)
===================================================== */
.ad-box {
  max-width: 1100px;
  margin: 25px auto;
  min-height: 90px;           /* CLS safe */
  background: #f8fafc;
  border: 1px dashed #cbd5e1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: #64748b;
}

/* =====================================================
   CATEGORY GRID (LISTING PAGE)
===================================================== */
.category-grid {
  max-width: 1200px;
  margin: 30px auto 40px;
  padding: 0 20px;

  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 22px;
}

/* =====================================================
   CATEGORY CARD
===================================================== */
.category-card {
  background: #ffffff;
  border-radius: 14px;
  padding: 18px 20px;
  border: 1px solid #e5e7eb;
  box-shadow: 0 8px 22px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

.category-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 32px rgba(0,0,0,0.15);
}

.category-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 6px;
}

.category-card > p {
  font-size: 13.5px;
  color: #64748b;
  margin-bottom: 12px;
}

/* =====================================================
   ARTICLE LINKS (CLICKABLE)
===================================================== */
.article-link {
  display: block;
  padding: 8px 10px;
  margin-bottom: 6px;
  border-radius: 8px;
  text-decoration: none;
  background: #f8fafc;
  transition: background 0.25s ease;
}

.article-link strong {
  display: block;
  font-size: 14.5px;
  color: #2563eb;
  font-weight: 600;
}

.article-link span {
  display: block;
  font-size: 12.8px;
  color: #475569;
  margin-top: 2px;
}

.article-link:hover {
  background: #eef2ff;
}

/* =====================================================
   TRUST NOTE
===================================================== */
.trust-note {
  max-width: 1000px;
  margin: 20px auto 40px;
  padding: 14px 18px;
  font-size: 13.5px;
  color: #374151;
  background: #fff7ed;
  border-left: 4px solid #fb923c;
  border-radius: 6px;
  text-align: center;
}

/* =====================================================
   FOOTER
===================================================== */
.site-footer {
  background: #ffffff;
  border-top: 1px solid #e5e7eb;
  padding: 20px 12px;
  text-align: center;
  font-size: 13px;
  color: #555;
}

.site-footer a {
  color: #2563eb;
  text-decoration: none;
  margin: 0 6px;
  font-weight: 500;
}

.site-footer a:hover {
  text-decoration: underline;
}

.site-footer p {
  margin-top: 6px;
  font-size: 12px;
  color: #6b7280;
}

/* =====================================================
   DETAIL PAGE
===================================================== */
.detail-container {
  max-width: 900px;
  margin: 90px auto 40px;
  background: #ffffff;
  padding: 30px 32px;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.1);
}

.detail-container h1 {
  font-size: 28px;
  margin-bottom: 10px;
  color: #0f172a;
}

.detail-intro {
  font-size: 15px;
  color: #475569;
  margin-bottom: 22px;
}

.detail-container h3 {
  font-size: 18px;
  margin-top: 22px;
  margin-bottom: 10px;
  color: #1e40af;
  border-left: 4px solid #2563eb;
  padding-left: 10px;
}

.detail-container ul {
  padding-left: 22px;
}

.detail-container li {
  margin-bottom: 8px;
  font-size: 14.5px;
}

/* FAQ */
#faqBox p {
  background: #f8fafc;
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 10px;
  font-size: 14px;
}

#faqBox strong {
  color: #0f172a;
}

/* =====================================================
   RESPONSIVE
===================================================== */
@media (max-width: 768px) {
  .tech-header h1 {
    font-size: 26px;
  }

  .detail-container {
    padding: 22px 20px;
  }

  .category-grid {
    gap: 16px;
  }
}

.tech-article {
  max-width: 900px;
  margin: 40px auto;
  background: #fff;
  padding: 28px;
  border-radius: 14px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.08);
}

.tech-article h1 {
  font-size: 28px;
  margin-bottom: 10px;
}

.article-intro {
  font-size: 15px;
  color: #374151;
}

.ad-box {
  margin: 24px 0;
  padding: 30px;
  text-align: center;
  border: 1px dashed #d1d5db;
  background: #f9fafb;
  font-size: 13px;
}

.trust-box {
  margin-top: 24px;
  background: #fff7ed;
  border-left: 4px solid #fb923c;
  padding: 12px;
  font-size: 13px;
}