.certificate-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 5vw, 48px);
  margin-bottom: 24px;
  color: #fff;
  background: linear-gradient(135deg, #183447 0%, #0f5b63 60%, #0f766e 100%);
  border-radius: 22px;
  box-shadow: 0 18px 42px rgba(31, 53, 70, .18);
}

.certificate-hero::after {
  position: absolute;
  right: -80px;
  bottom: -110px;
  width: 300px;
  height: 300px;
  border: 48px solid rgba(255, 255, 255, .07);
  border-radius: 50%;
  content: "";
}

.certificate-hero .eyebrow { color: #a7f3d0; }
.certificate-hero h1 { max-width: 820px; margin: 4px 0 14px; color: #fff; }
.certificate-hero p { position: relative; z-index: 1; max-width: 790px; color: #e6f5f4; font-size: 1.12rem; }
.certificate-hero-actions { position: relative; z-index: 1; display: flex; flex-wrap: wrap; gap: 10px; margin-top: 22px; }
.certificate-hero-actions .button { background: #fff; color: #173a45; }
.certificate-hero-actions .button:hover { background: #f3fffc; color: #0f5b63; }
.certificate-hero-actions .button.secondary { color: #fff; background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .35); }

.certificate-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 20px 0 34px; }
.certificate-stat { padding: 17px; text-align: center; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.certificate-stat strong { display: block; color: var(--navy); font-size: 1.45rem; }
.certificate-stat span { color: var(--muted); font-size: .9rem; }

.certificate-library-toolbar { padding: 19px; margin: 25px 0 20px; background: #f7fafb; border: 1px solid var(--line); border-radius: 16px; }
.certificate-library-toolbar label { display: block; margin-bottom: 8px; font-weight: 800; }
.certificate-filters { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.certificate-filters button { padding: 8px 12px; color: var(--navy); font-size: .88rem; background: #fff; border: 1px solid var(--line); border-radius: 999px; }
.certificate-filters button[aria-pressed="true"] { color: #fff; background: #0f766e; border-color: #0f766e; }
.certificate-library-status { margin: 12px 0 0; color: var(--muted); font-size: .92rem; }

.certificate-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 15px; margin: 22px 0 38px; }
.certificate-card { display: flex; flex-direction: column; min-height: 230px; padding: 19px; background: #fff; border: 1px solid var(--line); border-radius: 15px; box-shadow: 0 5px 18px rgba(31, 53, 70, .05); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.certificate-card:hover { border-color: #9bc6c3; box-shadow: 0 12px 26px rgba(31, 53, 70, .11); transform: translateY(-2px); }
.certificate-card-category { width: max-content; padding: 4px 8px; color: #0f5b63; font-size: .72rem; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; background: #e8f7f5; border-radius: 999px; }
.certificate-card h3 { margin: 13px 0 8px; font-size: 1.14rem; line-height: 1.3; }
.certificate-card h3 a { color: var(--navy); text-decoration: none; }
.certificate-card p { flex: 1; margin: 0 0 15px; color: var(--muted); font-size: .92rem; line-height: 1.55; }
.certificate-card-actions { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.certificate-card-actions a { font-size: .87rem; font-weight: 800; text-decoration: none; }
.certificate-card-actions .use-template { padding: 8px 10px; color: #fff; background: #0f766e; border-radius: 8px; }
.certificate-card-actions .use-template:hover { color: #fff; background: #0c5f59; }
.certificate-card[hidden], .certificate-category-section[hidden], .certificate-empty[hidden] { display: none; }
.certificate-empty { padding: 35px 20px; text-align: center; background: #f8fafb; border: 1px dashed #aac1cb; border-radius: 16px; }

.certificate-section-intro { max-width: 800px; margin: 38px 0 16px; }
.certificate-section-intro h2 { margin-bottom: 8px; }
.certificate-category-section { scroll-margin-top: 20px; }

.certificate-answer { padding: 21px 23px; margin: 24px 0; background: #eff9f8; border: 1px solid #c8e8e3; border-left: 5px solid #0f766e; border-radius: 14px; }
.certificate-answer h2 { margin: 0 0 7px; font-size: 1.35rem; }
.certificate-answer p:last-child { margin-bottom: 0; }

.certificate-cta-panel { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: 25px; margin: 28px 0 36px; background: linear-gradient(135deg, #f6fbfa, #edf7f8); border: 1px solid #cfe3e3; border-radius: 18px; }
.certificate-cta-panel h2 { margin: 0 0 8px; font-size: 1.45rem; }
.certificate-cta-panel p { margin: 0; }
.certificate-cta-panel .button { white-space: nowrap; background: #0f766e; }

.certificate-sample { padding: 25px; margin: 22px 0 30px; text-align: center; background: #fffdf7; border: 8px double #b9944b; border-radius: 4px; }
.certificate-sample small { color: #806c45; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.certificate-sample > strong { display: block; margin: 13px 0 8px; color: #283746; font: 700 clamp(1.35rem, 3vw, 2rem) Georgia, serif; }
.certificate-sample p { max-width: 710px; margin: 0 auto; color: #536371; }
.certificate-sample p strong { color: #283746; font: 700 1.2rem Georgia, serif; }

.certificate-detail-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 15px; margin: 20px 0 34px; }
.certificate-detail-card { padding: 20px; background: #fff; border: 1px solid var(--line); border-radius: 14px; }
.certificate-detail-card h3 { margin: 0 0 9px; font-size: 1.1rem; }
.certificate-detail-card p, .certificate-detail-card li { font-size: .98rem; }
.certificate-detail-card ul { margin-bottom: 0; }

.certificate-steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 20px 0 34px; list-style: none; counter-reset: certificate-step; }
.certificate-steps li { padding: 18px; background: #f7fafb; border: 1px solid var(--line); border-radius: 13px; counter-increment: certificate-step; }
.certificate-steps li::before { display: grid; width: 34px; height: 34px; margin-bottom: 10px; color: #fff; font-weight: 800; background: #0f766e; border-radius: 50%; content: counter(certificate-step); place-items: center; }
.certificate-steps strong { display: block; margin-bottom: 5px; color: var(--navy); }
.certificate-steps span { color: var(--muted); font-size: .92rem; line-height: 1.5; }

.certificate-faq { margin: 25px 0 38px; }
.certificate-faq details { padding: 15px 17px; margin-bottom: 10px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.certificate-faq summary { color: var(--navy); font-weight: 800; cursor: pointer; }
.certificate-faq p { margin: 9px 0 0; font-size: .98rem; }

.certificate-related-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 11px; margin: 18px 0 34px; }
.certificate-related-grid a { padding: 13px 14px; color: var(--navy); font-weight: 750; text-decoration: none; background: #fff; border: 1px solid var(--line); border-radius: 11px; }
.certificate-related-grid a:hover { color: #0f5b63; border-color: #9bc6c3; }

@media (max-width: 1000px) {
  .certificate-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .certificate-steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .certificate-hero { padding: 25px 20px; border-radius: 16px; }
  .certificate-hero-actions, .certificate-card-actions { align-items: stretch; flex-direction: column; }
  .certificate-hero-actions .button, .certificate-card-actions a { text-align: center; }
  .certificate-stats, .certificate-grid, .certificate-detail-grid, .certificate-related-grid, .certificate-steps { grid-template-columns: 1fr; }
  .certificate-cta-panel { grid-template-columns: 1fr; }
  .certificate-cta-panel .button { text-align: center; }
}