/* ===================================================
   WinBin2Iso Complete Self-Contained Theme CSS
   Ensures 100% full styling in Web Views, Browsers & Offline
   =================================================== */

:root {
  --bs-blue: #0d6efd;
  --bs-indigo: #6610f2;
  --bs-purple: #6f42c1;
  --bs-pink: #d63384;
  --bs-red: #dc3545;
  --bs-orange: #fd7e14;
  --bs-yellow: #ffc107;
  --bs-green: #198754;
  --bs-teal: #20c997;
  --bs-cyan: #0dcaf0;
  --bs-white: #fff;
  --bs-gray: #6c757d;
  --bs-gray-dark: #343a40;
  --bs-dark: #212529;
  --bs-light: #f8f9fa;
  --bs-font-sans-serif: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

body {
  margin: 0;
  font-family: var(--bs-font-sans-serif);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.6;
  color: #212529;
  background-color: #fff;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1030;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}
.navbar-dark {
  color: rgba(255, 255, 255, 0.55);
}
.bg-dark {
  background-color: #212529 !important;
}
.navbar-brand {
  display: inline-flex;
  align-items: center;
  padding-top: 0.3125rem;
  padding-bottom: 0.3125rem;
  margin-right: 1rem;
  font-size: 1.25rem;
  text-decoration: none;
  white-space: nowrap;
  color: #fff !important;
  font-weight: 700;
}
.navbar-brand img {
  margin-right: 8px;
}
.navbar-toggler {
  padding: 0.25rem 0.75rem;
  font-size: 1.25rem;
  line-height: 1;
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 0.25rem;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
}
.navbar-toggler-icon {
  display: inline-block;
  width: 1.5em;
  height: 1.5em;
  vertical-align: middle;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.55%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.navbar-nav {
  display: flex;
  flex-direction: row;
  padding-left: 0;
  margin-bottom: 0;
  list-style: none;
  flex-wrap: wrap;
}
.nav-item {
  list-style: none;
}
.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: rgba(255, 255, 255, 0.75) !important;
  text-decoration: none;
  transition: color 0.15s ease-in-out;
}
.nav-link:hover, .nav-link:focus, .nav-link.active {
  color: #fff !important;
}
.ms-auto {
  margin-left: auto !important;
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  z-index: 1000;
  display: none;
  min-width: 10rem;
  padding: 0.5rem 0;
  margin: 0;
  font-size: 1rem;
  color: #212529;
  text-align: left;
  list-style: none;
  background-color: #fff;
  background-clip: padding-box;
  border: 1px solid rgba(0,0,0,.15);
  border-radius: 0.25rem;
}
.dropdown-menu.show {
  display: block;
}
.dropdown-item {
  display: block;
  width: 100%;
  padding: 0.25rem 1rem;
  clear: both;
  font-weight: 400;
  color: #212529;
  text-align: inherit;
  text-decoration: none;
  white-space: nowrap;
  background-color: transparent;
  border: 0;
}
.dropdown-item:hover, .dropdown-item:focus {
  color: #1e2125;
  background-color: #e9ecef;
}

/* Containers & Grid */
.container {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
  max-width: 1140px;
}
@media (min-width: 1400px) {
  .container { max-width: 1320px; }
}
.row {
  display: flex;
  flex-wrap: wrap;
  margin-right: -15px;
  margin-left: -15px;
}
.col-lg-12, .col-lg-10, .col-lg-8, .col-md-6, .col-md-4, .col-12 {
  position: relative;
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
}
@media (min-width: 768px) {
  .col-md-6 { flex: 0 0 auto; width: 50%; }
  .col-md-4 { flex: 0 0 auto; width: 33.333333%; }
}
@media (min-width: 992px) {
  .col-lg-12 { flex: 0 0 auto; width: 100%; }
  .col-lg-10 { flex: 0 0 auto; width: 83.333333%; }
  .col-lg-8 { flex: 0 0 auto; width: 66.666667%; }
}
.mx-auto { margin-right: auto !important; margin-left: auto !important; }

/* Spacing */
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }
.my-2 { margin-top: 0.5rem !important; margin-bottom: 0.5rem !important; }
.my-3 { margin-top: 1rem !important; margin-bottom: 1rem !important; }
.my-4 { margin-top: 1.5rem !important; margin-bottom: 1.5rem !important; }
.pt-5 { padding-top: 3rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }

/* Typography */
h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  margin-bottom: 0.5rem;
  font-weight: 700;
  line-height: 1.2;
}
.fw-bold, .fw-bolder { font-weight: 700 !important; }
.text-center { text-align: center !important; }
.text-muted { color: #6c757d !important; }
.text-white { color: #fff !important; }
.text-dark { color: #212529 !important; }
.text-danger { color: #dc3545 !important; }
.text-success { color: #198754 !important; }
.lead { font-size: 1.2rem; font-weight: 300; }
.fst-italic { font-style: italic !important; }
.text-decoration-none { text-decoration: none !important; }

/* Article Typography */
article {
  line-height: 1.7;
  color: #222;
}
article p {
  margin-top: 0;
  margin-bottom: 1.25rem;
  color: #333;
}
article h1 {
  font-size: 2.2rem;
  font-weight: 800;
}
article h2 {
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1.25rem;
  text-align: center;
  font-size: 1.8rem;
  color: #212529;
}
article h3 {
  font-size: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 0.75rem;
  font-weight: 600;
  color: #333;
}
article h4 {
  font-size: 1.1rem;
  margin-top: 1.25rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: #444;
}
article ul, article ol {
  margin: 0 0 1.5rem 1.5rem;
  padding: 0;
}
article li {
  margin: 0.35rem 0;
}
article p a, article li a {
  color: #0d6efd;
  text-decoration: underline;
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 500;
  line-height: 1.5;
  color: #212529;
  text-align: center;
  text-decoration: none;
  vertical-align: middle;
  cursor: pointer;
  user-select: none;
  background-color: transparent;
  border: 1px solid transparent;
  padding: 0.5rem 1.25rem;
  font-size: 1rem;
  border-radius: 0.25rem;
  transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out;
}
.btn-dark {
  color: #fff !important;
  background-color: #212529 !important;
  border-color: #212529 !important;
}
.btn-dark:hover {
  background-color: #1a1e21 !important;
  border-color: #191c1f !important;
}
.btn-primary {
  color: #fff !important;
  background-color: #0d6efd !important;
  border-color: #0d6efd !important;
}
.btn-primary:hover {
  background-color: #0b5ed7 !important;
  border-color: #0a58ca !important;
}
.btn-outline-dark {
  color: #212529 !important;
  border-color: #212529 !important;
}
.btn-outline-dark:hover {
  color: #fff !important;
  background-color: #212529 !important;
}
.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: 1.15rem;
  border-radius: 0.3rem;
}
.btn-sm {
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
}

/* Cards & Badges */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  word-wrap: break-word;
  background-color: #f8f9fa;
  background-clip: border-box;
  border: 1px solid rgba(0, 0, 0, 0.125);
  border-radius: 0.375rem;
}
.card-body {
  flex: 1 1 auto;
  padding: 1.25rem;
}
.border-0 { border: 0 !important; }
.shadow-sm { box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075) !important; }
.bg-light { background-color: #f8f9fa !important; }
.bg-white { background-color: #fff !important; }
.rounded { border-radius: 0.375rem !important; }
.border { border: 1px solid #dee2e6 !important; }
.border-start { border-left: 1px solid #dee2e6 !important; }
.border-primary { border-color: #0d6efd !important; }
.border-4 { border-width: 4px !important; }

.badge {
  display: inline-block;
  padding: 0.35em 0.65em;
  font-size: 0.75em;
  font-weight: 700;
  line-height: 1;
  color: #fff;
  text-align: center;
  white-space: nowrap;
  vertical-align: baseline;
  border-radius: 0.25rem;
}
.bg-primary { background-color: #0d6efd !important; }
.bg-success { background-color: #198754 !important; }
.bg-secondary { background-color: #6c757d !important; }
.bg-danger { background-color: #dc3545 !important; }
.bg-warning { background-color: #ffc107 !important; color: #212529 !important; }

/* Breadcrumbs */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  padding: 0.5rem 0;
  margin-bottom: 1rem;
  list-style: none;
}
.breadcrumb-item + .breadcrumb-item::before {
  float: left;
  padding-right: 0.5rem;
  padding-left: 0.5rem;
  color: #6c757d;
  content: "/";
}
.breadcrumb-item a {
  color: #0d6efd;
  text-decoration: none;
}
.breadcrumb-item.active {
  color: #6c757d;
}

/* Tables */
.table {
  width: 100%;
  margin-bottom: 1rem;
  color: #212529;
  vertical-align: top;
  border-color: #dee2e6;
  caption-side: bottom;
  border-collapse: collapse;
}
.table-bordered {
  border: 1px solid #dee2e6;
}
.table-bordered > :not(caption) > * > * {
  padding: 0.75rem;
  border: 1px solid #dee2e6;
}
.table-striped > tbody > tr:nth-of-type(odd) > * {
  background-color: rgba(0, 0, 0, 0.05);
}
.table-dark {
  color: #fff;
  background-color: #212529;
}
.table-dark th {
  background-color: #212529;
  color: #fff;
}
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* Flex utilities */
.d-flex { display: flex !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.justify-content-center { justify-content: center !important; }
.align-items-center { align-items: center !important; }
.align-self-start { align-self: flex-start !important; }
.flex-grow-1 { flex-grow: 1 !important; }
.gap-2 { gap: 0.5rem !important; }
.gap-3 { gap: 1rem !important; }

/* Lists */
.list-unstyled {
  padding-left: 0;
  list-style: none;
}

/* Footer */
footer.bg-dark {
  background-color: #212529 !important;
  color: #fff !important;
  padding: 1.5rem 0;
  margin-top: 3rem;
  text-align: center;
}
footer a {
  color: #fff !important;
  text-decoration: none;
}
footer a:hover {
  text-decoration: underline;
}

/* Ad Layout Stability & Zero CLS Reservations */
.ad-container {
  width: 100%;
  margin: 15px auto;
  text-align: center;
  overflow: hidden;
  clear: both;
}
.ad-desktop {
  display: none;
  min-height: 90px;
  max-width: 728px;
  margin: 0 auto;
}
.ad-mobile {
  display: none;
  min-height: 250px;
  max-width: 300px;
  margin: 0 auto;
}
@media (min-width: 769px) {
  .ad-desktop { display: block; }
}
@media (max-width: 768px) {
  .ad-mobile { display: block; }
  .navbar-nav { flex-direction: column; }
  .btn { display: block; width: 100%; margin-bottom: 8px; }
}

/* ===================================================
   Clean Section-Specific Styles (Features, Steps, FAQ, Advantages)
   =================================================== */

.section-block {
  margin: 2.25rem 0;
  padding: 1.5rem;
  background: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.03);
}

.section-block h2 {
  margin-top: 0 !important;
  margin-bottom: 1.25rem !important;
  font-size: 1.5rem !important;
  font-weight: 700 !important;
  color: #111827 !important;
  border-bottom: 2px solid #f3f4f6;
  padding-bottom: 0.75rem;
  text-align: left !important;
}

/* 1. Features Styling */
.section-features ul {
  list-style: none !important;
  padding-left: 0 !important;
  margin: 0 !important;
}
.section-features li {
  padding: 0.85rem 1.1rem !important;
  margin-bottom: 0.65rem !important;
  background: #f8fafc !important;
  border-left: 4px solid #212529 !important;
  border-radius: 6px !important;
  line-height: 1.6 !important;
}

/* 2. How to Use / Steps Styling */
.section-how-to {
  background: #fdfdfd;
}
.section-how-to ul, .section-how-to ol {
  padding-left: 1.25rem !important;
  margin: 0 !important;
}
.section-how-to li {
  padding: 0.5rem 0 !important;
  border-bottom: 1px dashed #e2e8f0 !important;
  color: #374151 !important;
}
.section-how-to li:last-child {
  border-bottom: none !important;
}

/* 3. Why It's The Best Highlight */
.section-why-best {
  background: #f8fafc;
  border-left: 4px solid #0d6efd;
}

/* 4. Advantages Styling */
.advantage-card {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.85rem;
  transition: transform 0.15s ease-in-out;
}
.advantage-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}
.advantage-card h3 {
  font-size: 1.15rem !important;
  font-weight: 600 !important;
  color: #111827 !important;
  margin-top: 0 !important;
  margin-bottom: 0.4rem !important;
}
.advantage-card p {
  margin-bottom: 0 !important;
  color: #4b5563 !important;
}

/* 5. FAQ Item Cards */
.faq-item {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 0.75rem;
}
.faq-item h3 {
  font-size: 1.1rem !important;
  font-weight: 600 !important;
  color: #111827 !important;
  margin-top: 0 !important;
  margin-bottom: 0.5rem !important;
  display: flex;
  align-items: center;
}
.faq-item h3::before {
  content: "Q";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  background-color: #212529;
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  margin-right: 10px;
  flex-shrink: 0;
}
.faq-item p {
  margin-bottom: 0 !important;
  color: #4b5563 !important;
  padding-left: 32px;
}
.faq-item ul {
  margin-bottom: 0 !important;
  padding-left: 48px;
  color: #4b5563 !important;
}

/* 6. Blog Card Images & Hero Cover */
.blog-card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform 0.25s ease-in-out;
  display: block;
}
.card:hover .blog-card-img {
  transform: scale(1.03);
}
.blog-hero-cover {
  margin: 1.5rem 0 2rem 0;
  text-align: center;
}
.blog-hero-cover img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}
.blog-hero-cover figcaption {
  font-size: 0.85rem;
  color: #6c757d;
  margin-top: 0.5rem;
}