* {
  box-sizing: border-box;
}

:root {
  --text: #172033;
  --muted: #5d6678;
  --border: #e4e8ef;
  --surface: #f7f8fa;
  --white: #ffffff;
  --accent: #2457c5;
  --accent-dark: #1d46a0;
  --max-width: 1120px;
  --reading-width: 760px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: var(--white);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: min(calc(100% - 32px), var(--max-width));
  margin-inline: auto;
}

.narrow {
  max-width: var(--reading-width);
}

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  color: var(--text);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.main-nav,
.site-footer nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
}

.main-nav a,
.site-footer nav a {
  color: var(--text);
  font-size: 0.95rem;
}

.hero {
  padding: 88px 0 80px;
  border-bottom: 1px solid var(--border);
}

.hero h1 {
  max-width: 760px;
  margin: 8px 0 18px;
  font-size: clamp(2.1rem, 5vw, 3.7rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero-text {
  max-width: 680px;
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 1.08rem;
}

.eyebrow {
  margin: 0;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.button {
  display: inline-block;
  padding: 11px 17px;
  border-radius: 7px;
  color: var(--white);
  background: var(--accent);
  font-weight: 700;
}

.button:hover {
  background: var(--accent-dark);
  text-decoration: none;
}

.section {
  padding: 68px 0;
}

.section-muted {
  background: var(--surface);
}

.section h2 {
  margin: 6px 0 28px;
  font-size: clamp(1.65rem, 3vw, 2.2rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.topic-card,
.article-card {
  display: block;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--white);
}

.topic-card h3,
.article-card h3 {
  margin: 0 0 8px;
  line-height: 1.3;
}

.topic-card p,
.article-card p {
  margin: 0;
  color: var(--muted);
}

.topic-card:hover {
  border-color: #c8d1e2;
  text-decoration: none;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.article-list {
  display: grid;
  gap: 14px;
}

.article-meta {
  margin-bottom: 8px !important;
  color: var(--accent) !important;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.text-link {
  font-weight: 700;
}

.site-footer {
  padding-top: 44px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  padding-bottom: 32px;
}

.footer-brand {
  display: inline-block;
  margin-bottom: 8px;
}

.footer-inner p {
  max-width: 360px;
  margin: 0;
  color: var(--muted);
}

.copyright {
  padding: 18px 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

.copyright p {
  margin: 0;
}

@media (max-width: 700px) {
  .header-inner {
    min-height: 62px;
    align-items: flex-start;
    padding: 14px 0;
    flex-direction: column;
    gap: 8px;
  }

  .main-nav {
    width: 100%;
    gap: 8px 18px;
  }

  .main-nav a {
    font-size: 0.9rem;
  }

  .hero {
    padding: 58px 0 54px;
  }

  .section {
    padding: 50px 0;
  }

  .topic-grid {
    grid-template-columns: 1fr;
  }

  .section-heading,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-inner {
    gap: 24px;
  }

  .site-footer nav {
    gap: 8px 18px;
  }
}


.breadcrumb-wrap {
  padding-top: 22px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.breadcrumbs a {
  color: var(--muted);
}

.page-hero {
  padding: 58px 0 48px;
  border-bottom: 1px solid var(--border);
}

.page-hero h1 {
  max-width: 820px;
  margin: 8px 0 18px;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.lead {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(260px, 1fr);
  gap: 28px;
  align-items: start;
}

.content h2,
.contact-note h2 {
  margin: 0 0 14px;
  font-size: 1.65rem;
  line-height: 1.3;
}

.content p,
.contact-note p {
  color: var(--muted);
}

.contact-card {
  margin-top: 20px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

.contact-card h3 {
  margin: 0 0 6px;
}

.contact-card p {
  margin: 0;
}

.muted {
  color: var(--muted);
}

.contact-note {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}

@media (max-width: 760px) {
  .breadcrumb-wrap {
    padding-top: 16px;
  }

  .page-hero {
    padding: 44px 0 38px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}


/* RyanFila article system */
.article-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 780px);
  gap: 44px;
  align-items: start;
  padding-top: 28px;
  padding-bottom: 70px;
}

.article-sidebar {
  position: sticky;
  top: 20px;
}

.toc-box {
  border-left: 2px solid var(--border);
  padding-left: 15px;
}

.toc-title {
  margin: 0 0 10px;
  color: var(--text);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

#article-toc {
  display: grid;
  gap: 3px;
}

#article-toc a {
  display: block;
  padding: 4px 0;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.4;
}

#article-toc a:hover {
  color: var(--accent);
  text-decoration: none;
}

#article-toc .toc-sub {
  padding-left: 10px;
  font-size: 0.82rem;
}

.article-content {
  min-width: 0;
}

.article-header {
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.article-header h1 {
  margin: 8px 0 16px;
  max-width: 850px;
  font-size: clamp(2rem, 4.5vw, 3.25rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.article-byline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  color: var(--muted);
  font-size: 0.88rem;
}

.article-body {
  padding-top: 30px;
  font-size: 1.03rem;
}

.article-body p {
  margin: 0 0 18px;
  color: #3f4858;
}

.article-body .article-intro {
  color: var(--text);
  font-size: 1.08rem;
}

.article-body h2 {
  margin: 42px 0 13px;
  scroll-margin-top: 24px;
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  line-height: 1.25;
}

.article-body h3 {
  margin: 28px 0 9px;
  scroll-margin-top: 24px;
  font-size: 1.22rem;
  line-height: 1.35;
}

.related-articles {
  margin-top: 48px;
  padding-top: 30px;
  border-top: 1px solid var(--border);
}

.related-articles h2 {
  margin: 0 0 16px;
  font-size: 1.65rem;
}

.related-grid {
  display: grid;
  gap: 12px;
}

.related-grid a {
  display: grid;
  gap: 5px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 9px;
  color: var(--text);
  background: var(--surface);
}

.related-grid a:hover {
  border-color: #c8d1e2;
  text-decoration: none;
}

.related-grid span {
  color: var(--muted);
  font-size: 0.82rem;
}

@media (max-width: 850px) {
  .article-layout {
    grid-template-columns: 1fr;
    gap: 22px;
    padding-top: 20px;
  }

  .article-sidebar {
    position: static;
    order: -1;
  }

  .toc-box {
    border: 1px solid var(--border);
    border-radius: 9px;
    padding: 13px 15px;
    background: var(--surface);
  }

  #article-toc {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 16px;
  }
}

@media (max-width: 520px) {
  #article-toc {
    grid-template-columns: 1fr;
  }

  .article-body {
    font-size: 1rem;
  }

  .article-byline {
    display: grid;
    gap: 4px;
  }
}


/* Approved RyanFila author identity */
.author-profile {
  display: flex;
  align-items: center;
  gap: 14px;
}

.author-avatar {
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
}

.about-author-card {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 28px;
  align-items: center;
  margin: 28px 0 38px;
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
}

.about-author-card img {
  width: 180px;
  height: 180px;
  border-radius: 50%;
  object-fit: cover;
}

@media (max-width: 650px) {
  .about-author-card {
    grid-template-columns: 1fr;
  }

  .about-author-card img {
    width: 140px;
    height: 140px;
  }
}

.page-hero {
  padding-top: 34px;
  padding-bottom: 28px;
}
.page-hero h1 {
  max-width: 800px;
  margin: 8px 0 12px;
}
.page-hero > p:last-child {
  max-width: 720px;
  color: var(--muted);
}
.content-narrow {
  max-width: 920px;
  padding-bottom: 70px;
}
.content-narrow h2 {
  margin-top: 34px;
}
.callout {
  margin-top: 28px;
  padding: 18px 20px;
  border-radius: 9px;
  background: #eef6ff;
  border: 1px solid var(--border);
}
.callout p { margin: 0; }

.article-body ul,.article-body ol{margin:0 0 20px;padding-left:24px;color:#3f4858}
.article-body li{margin:0 0 8px}
.author-box{margin-top:48px;padding:24px;border:1px solid var(--border);border-radius:12px;background:var(--surface)}
.author-box h2{margin:0 0 8px;font-size:1.35rem}
.author-box p{margin:0;color:var(--muted)}

.article-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding-bottom:70px}
.article-card{display:grid;gap:8px;padding:22px;border:1px solid var(--border);border-radius:12px;background:var(--surface);color:var(--text)}
.article-card:hover{text-decoration:none;border-color:#c8d1e2}
.article-card span{font-size:.78rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;color:var(--muted)}
.article-card strong{font-size:1.15rem;line-height:1.35}
.article-card p{margin:0;color:var(--muted);font-size:.92rem;line-height:1.55}
@media(max-width:650px){.article-grid{grid-template-columns:1fr}}

.article-hero{margin:24px 0 30px}.article-hero img{display:block;width:100%;height:auto;border-radius:14px}

.article-image{margin:24px 0 30px}.article-image img{display:block;width:100%;height:auto;max-width:100%;border-radius:14px}

/* Blogs dropdown */
.main-nav{display:flex;align-items:center;gap:22px}
.nav-dropdown{position:relative}
.nav-dropdown summary{list-style:none;cursor:pointer}
.nav-dropdown summary::-webkit-details-marker{display:none}
.nav-dropdown summary:after{content:" ▾";font-size:.75em}
.nav-menu{position:absolute;top:calc(100% + 10px);left:0;min-width:180px;background:#fff;border:1px solid #dce5ec;border-radius:10px;box-shadow:0 10px 28px rgba(20,45,70,.12);padding:8px;z-index:20}
.nav-menu a{display:block;padding:9px 11px;white-space:nowrap}
.nav-menu a:hover{background:#f2f7fb;border-radius:7px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);gap:42px;align-items:center}
.hero-image img{display:block;width:100%;height:auto;border-radius:18px}
.article-images{margin:42px 0}
.source-image{margin:28px 0}
.source-image img{display:block;max-width:100%;width:auto;height:auto;margin:0 auto;border-radius:12px}
.source-image figcaption{font-size:.85rem;color:#667788;margin-top:7px;text-align:center}
.info-box{padding:28px;border:1px solid #dce5ec;border-radius:14px;background:#f8fbfd}
@media (max-width:800px){
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .main-nav{gap:13px}
  .nav-menu{position:static;box-shadow:none;border:0;padding-left:0}
}

/* Homepage visual system based on the approved reference layout */
.home-page { --rf-navy:#10234b; --rf-blue:#1268f3; --rf-light:#eef7ff; --rf-muted:#516078; --rf-border:#dce7f4; }
.rf-container{width:min(100% - 32px,1120px);margin:0 auto}.rf-header{background:#fff;border-bottom:1px solid #edf1f6}.rf-header-inner{min-height:62px;display:flex;align-items:center;gap:28px}.rf-logo{font-size:30px;font-weight:850;letter-spacing:-1.8px;color:var(--rf-navy);white-space:nowrap}.rf-logo b{color:var(--rf-blue)}.rf-nav{display:flex;align-items:center;justify-content:center;gap:27px;flex:1}.rf-nav>a,.rf-policy summary{font-size:14px;color:#0f1d39;cursor:pointer}.rf-nav .active{color:var(--rf-blue)}.rf-policy{position:relative}.rf-policy summary{list-style:none}.rf-policy summary::-webkit-details-marker{display:none}.rf-policy summary:after{content:'⌄';font-size:12px;margin-left:5px}.rf-policy>div{position:absolute;top:26px;right:-10px;display:grid;gap:8px;padding:12px;min-width:120px;background:#fff;border:1px solid var(--rf-border);border-radius:10px;box-shadow:0 12px 30px rgba(16,35,75,.12);z-index:10}.rf-policy>div a{color:#0f1d39;font-size:13px}.rf-top-btn,.rf-btn-primary{background:var(--rf-blue);color:#fff;border-radius:7px;font-weight:750}.rf-top-btn{padding:10px 21px;font-size:14px}.rf-top-btn:hover,.rf-btn-primary:hover{background:#0758d5;text-decoration:none}.rf-hero{background:linear-gradient(180deg,#f8fcff,#f1f8ff);padding:52px 0 50px}.rf-hero-grid{display:grid;grid-template-columns:1.55fr .95fr;gap:48px;align-items:center}.rf-hero h1{margin:0;color:var(--rf-navy);font-size:clamp(42px,5.1vw,62px);line-height:1.02;letter-spacing:-3px}.rf-hero h1 span{color:var(--rf-blue)}.rf-hero-copy>p{max-width:640px;margin:17px 0 22px;color:#34445f;font-size:18px;line-height:1.45}.rf-actions{display:flex;gap:14px;flex-wrap:wrap}.rf-btn{display:inline-flex;align-items:center;justify-content:center;gap:15px;min-height:48px;padding:0 25px;border:1px solid var(--rf-blue);font-size:14px}.rf-btn:hover{text-decoration:none}.rf-btn-outline{color:var(--rf-blue);background:#fff}.rf-btn span{font-size:20px;line-height:0}.rf-hero-panel{background:#f0f7ff;border-radius:12px;padding:27px 25px;display:grid;gap:23px}.rf-check{display:flex;align-items:center;gap:13px;color:#1d2c47;font-size:14px}.rf-check i{width:22px;height:22px;display:grid;place-items:center;border-radius:50%;background:var(--rf-blue);color:#fff;font-style:normal;font-weight:800;font-size:13px;flex:0 0 22px}.rf-section{padding:54px 0}.rf-section-blue{background:#eff8ff}.rf-section-head{text-align:center;margin-bottom:25px}.rf-section-head h2{margin:0;color:var(--rf-navy);font-size:31px;line-height:1.15;letter-spacing:-1.3px}.rf-section-head p{margin:8px 0 0;color:#40506a;font-size:15px}.rf-help-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.rf-help-card,.rf-guide-card{background:#fff;border:1px solid var(--rf-border);border-radius:9px;text-align:center}.rf-help-card{padding:20px 17px 18px}.rf-help-card:hover,.rf-guide-card:hover{border-color:#b8d0ef;box-shadow:0 8px 24px rgba(16,35,75,.05);text-decoration:none}.rf-icon{width:42px;height:42px;margin:0 auto 10px;display:grid;place-items:center;font-size:29px;font-weight:700}.rf-icon.gear{color:#0d73ff}.rf-icon.alert{color:#ef3340;border:3px solid #ef3340;border-radius:8px;font-size:23px}.rf-icon.data{color:#12a66b;font-size:35px}.rf-icon.support{color:#8b42e8;font-size:34px}.rf-help-card h3,.rf-guide-card h3{margin:0;color:var(--rf-navy);font-size:16px;line-height:1.3}.rf-help-card p{min-height:62px;margin:7px 0 10px;color:#58677f;font-size:14px;line-height:1.45}.rf-help-card strong,.rf-guide-card>a{color:var(--rf-blue);font-size:13px}.rf-guides{background:#fff}.rf-guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}.rf-guide-card{text-align:left;padding:17px 21px}.rf-guide-card h3{font-size:16px}.rf-guide-card h3 a{color:var(--rf-blue)}.rf-guide-card p{margin:8px 0 7px;color:#5b687c;font-size:14px;line-height:1.4;min-height:40px}.rf-guide-card>a{font-weight:700}.rf-why{padding-bottom:47px}.rf-why-grid{display:grid;grid-template-columns:repeat(4,1fr);text-align:center;gap:25px}.rf-why-icon{width:42px;height:42px;margin:0 auto 9px;display:grid;place-items:center;font-size:25px;font-weight:800}.rf-why-icon.green{color:#12a66b}.rf-why-icon.blue{color:#096bf0}.rf-why-icon.purple{color:#8c43e8}.rf-why-icon.red{color:#ed3541}.rf-why h3{margin:0;color:var(--rf-navy);font-size:16px}.rf-why p{margin:4px 0 0;color:#55647a;font-size:14px;line-height:1.35}.rf-cta{background:linear-gradient(90deg,#075bdd,#1268f3);color:#fff}.rf-cta-inner{min-height:94px;display:flex;align-items:center;justify-content:center;gap:50px}.rf-cta h2{margin:0;font-size:25px;letter-spacing:-.7px}.rf-cta p{margin:2px 0 0;font-size:14px}.rf-cta-btn{background:#fff;color:var(--rf-blue);padding:12px 30px;border-radius:7px;font-weight:750;min-width:185px;text-align:center}.rf-cta-btn:hover{text-decoration:none}.rf-cta-btn span{margin-left:10px}.rf-footer{background:#fff}.rf-footer-inner{padding:28px 0 20px;display:flex;justify-content:space-between;align-items:flex-start;gap:35px}.rf-footer-logo{font-size:28px}.rf-footer-inner p{margin:6px 0 0;color:#56647a;font-size:13px}.rf-footer nav{display:flex;gap:25px;align-items:center}.rf-footer nav a{color:#17233c;font-size:13px}.rf-copyright{border-top:1px solid #edf1f6;padding:14px 0 18px;text-align:right;color:#6b7688;font-size:12px}
@media(max-width:850px){.rf-header-inner{flex-wrap:wrap;padding:11px 0}.rf-nav{order:3;width:100%;justify-content:flex-start;overflow:auto;gap:18px}.rf-top-btn{margin-left:auto}.rf-hero-grid{grid-template-columns:1fr}.rf-hero-panel{max-width:650px}.rf-help-grid{grid-template-columns:repeat(2,1fr)}.rf-guide-grid{grid-template-columns:repeat(2,1fr)}.rf-why-grid{grid-template-columns:repeat(2,1fr)}.rf-cta-inner{padding:18px 0;gap:20px}.rf-footer-inner{flex-direction:column}.rf-footer nav{flex-wrap:wrap}}
@media(max-width:560px){.rf-container{width:min(100% - 24px,1120px)}.rf-logo{font-size:27px}.rf-nav>a,.rf-policy summary{font-size:13px}.rf-top-btn{padding:9px 13px}.rf-hero{padding:42px 0}.rf-hero h1{font-size:42px;letter-spacing:-2px}.rf-hero-copy>p{font-size:16px}.rf-actions{flex-direction:column}.rf-btn{width:100%}.rf-help-grid,.rf-guide-grid{grid-template-columns:1fr}.rf-why-grid{grid-template-columns:1fr 1fr}.rf-cta-inner{flex-direction:column;text-align:center}.rf-cta h2{font-size:22px}.rf-copyright{text-align:center}.rf-footer nav{gap:13px 20px}}

.rf-reviews{background:#fff}.rf-review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.rf-review-card{background:#fff;border:1px solid #dbe7f5;border-radius:12px;padding:24px;box-shadow:0 5px 18px rgba(15,35,65,.04)}.rf-stars{color:#f5a623;letter-spacing:2px;font-size:17px;margin-bottom:10px}.rf-review-card h3{margin:0 0 10px;color:#0c2450;font-size:19px;line-height:1.35}.rf-review-card p{margin:0 0 16px;color:#52627a;line-height:1.65}.rf-review-card strong{display:block;color:#0c2450}.rf-review-card span{display:block;color:#718096;font-size:14px;margin-top:3px}
@media (max-width:900px){.rf-review-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){.rf-review-grid{grid-template-columns:1fr}}