:root {--k4-text: rgb(245,245,247);--k4-border: rgba(240, 193, 89, 0.25);--k4-gold: #f0c159;--k4-bg: #0d0d10;--k4-layout-max: 1200px;--k4-gold-dark: #c99a3a;--k4-bg-alt: #17171c;--k4-radius: 12px;--k4-text-muted: #a9a9b3;--k4-bg-card: #1d1d24}

* { box-sizing: border-box; }
html {overflow-x: hidden;scroll-behavior: smooth}
body.k4-body {color: var(--k4-text);font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;overflow-x: hidden;background: var(--k4-bg);line-height: 1.65;margin: 0;isolation:auto;pointer-events:auto;visibility:visible;outline-offset:0}
img {max-width: 100%;height: auto;display: block}
a {color: inherit;text-decoration: none}
ul, ol {list-style: none;margin: 0;padding: 0}
h1, h2, h3, h4 {line-height: 1.25;margin: 0 0 0.6em}
p {margin: 0 0 1em;color: var(--k4-text-muted)}

.k4-wrap {margin: 0 auto;max-width: var(--k4-layout-max);padding: 0 20px}


.k4-header {top: 0;background: rgba(13, 13, 16, 0.96);position: sticky;backdrop-filter: blur(6px);border-bottom: 1px solid var(--k4-border);z-index: 1000}
.k4-nav {align-items: center;gap: 16px;display: flex;padding: 14px 20px}
.k4-menu-btn {cursor: pointer;flex-direction: column;display: none;border: 1px solid var(--k4-border);width: 38px;flex-shrink: 0;background: none;height: 38px;justify-content: center;gap: 5px;border-radius: 8px}
.k4-menu-btn span {margin: 0 auto;display: block;background: var(--k4-gold);height: 2px;width: 18px}
.k4-logo {align-items: center;flex-shrink: 0;display: flex;gap: 8px}
.k4-logo__img {height: 40px;border-radius: 50%;object-fit: cover;width: 40px}
.k4-logo__text {color: var(--k4-gold);letter-spacing: 0.02em;font-weight: 800;font-size: 1.1rem}

.k4-nav__links {gap: 4px;flex: 1;align-items: center;display: flex;flex-wrap: wrap}
.k4-nav__link {font-weight: 600;text-transform: capitalize;color: var(--k4-text);padding: 8px 10px;font-size: 0.82rem;border-radius: 8px;white-space: nowrap;display: inline-block}
.k4-nav__link:hover, .k4-nav__link--current {background: rgba(240, 193, 89, 0.1);color: var(--k4-gold)}

.k4-nav__actions {gap: 8px;flex-shrink: 0;align-items: center;display: flex}
.k4-btn {font-size: 0.82rem;border-radius: 999px;font-weight: 700;display: inline-block;padding: 9px 16px;white-space: nowrap}
.k4-btn--ghost {color: var(--k4-gold);border: 1px solid var(--k4-gold)}
.k4-btn--solid {background: linear-gradient(135deg, var(--k4-gold), var(--k4-gold-dark));color: #1a1400}

@media (max-width: 860px) {
  .k4-menu-btn { display: flex; }
  .k4-nav__links {z-index: 999;overflow-y: auto;flex-direction: column;transition: transform .25s ease;position: fixed;transform: translateX(-100%);padding: 16px;align-items: stretch;left: 0;background: var(--k4-bg-alt);top: 68px;bottom: 0;right: 0;gap: 2px}
  .k4-nav__links.k4-is-open { transform: translateX(0); }
  .k4-nav__link {border-bottom: 1px solid var(--k4-border);border-radius: 0;padding: 12px 10px}
  .k4-nav__actions .k4-btn--ghost { display: none; }
}


.k4-breadcrumb {border-bottom: 1px solid var(--k4-border);padding: 10px 0}
.k4-breadcrumb .k4-wrap {gap: 6px;align-items: center;font-size: 0.78rem;display: flex;color: var(--k4-text-muted)}
.k4-breadcrumb a { color: var(--k4-gold); }
.k4-breadcrumb__sep { opacity: .5; }


.k4-main { min-height: 60vh; }
.k4-article { padding: 32px 0 56px; }
.k4-h1 {color: var(--k4-text);font-size: clamp(1.5rem, 4vw, 2.1rem)}
.k4-p {max-width: 860px;color: var(--k4-text-muted);font-size: 0.98rem}

.k4-cta-row { margin: 22px 0; }
.k4-btn-register {gap: 10px;font-size: 0.95rem;letter-spacing: 0.02em;color: #1a1400;background: linear-gradient(135deg, var(--k4-gold), var(--k4-gold-dark));padding: 14px 26px;display: inline-flex;font-weight: 800;border-radius: 999px;align-items: center}
.k4-btn-arrow {flex-shrink: 0;fill: rgba(26,20,0,1)}

.k4-media-link {justify-content: center;overflow: hidden;border-radius: var(--k4-radius);margin: 20px 0;display: flex;border: 1px solid var(--k4-border)}
.k4-media-link--logo {margin: 20px auto;max-width: 220px}
.k4-media-img {display: block;width: 100%}
.k4-logo-fallback {aspect-ratio: 1 / 1;align-items: center;background: linear-gradient(145deg, var(--k4-bg-card), var(--k4-bg-alt))}
.k4-logo-fallback__mark {font-family: 'Roboto', 'Segoe UI', Arial, sans-serif;color: var(--k4-gold);font-weight: 700;line-height: 1;font-size: 4rem}

.k4-rich h2 {font-size: 1.2rem;margin-top: 1.6em;color: var(--k4-gold)}
.k4-steps li, .k4-rich ul li {padding-left: 18px;position: relative;margin-bottom: 8px;color: var(--k4-text-muted)}
.k4-steps { counter-reset: k4-step; }
.k4-steps li::before {counter-increment: k4-step;font-weight: 800;content: counter(k4-step) '.';color: var(--k4-gold);left: 0;position: absolute}
.k4-rich ul li::before {content: '•';position: absolute;left: 0;color: var(--k4-gold)}
.k4-table {border-collapse: collapse;margin: 16px 0;width: 100%;font-size: 0.88rem}
.k4-table th, .k4-table td {padding: 10px 12px;color: var(--k4-text-muted);text-align: left;border: 1px solid var(--k4-border)}
.k4-table th {color: var(--k4-gold);background: var(--k4-bg-card)}

.k4-related {align-items: center;flex-wrap: wrap;gap: 10px;padding-top: 20px;border-top: 1px solid var(--k4-border);display: flex;margin-top: 28px}
.k4-related__title {font-size: 0.85rem;color: var(--k4-text-muted);margin: 0}
.k4-related__link {border: 1px solid var(--k4-border);color: var(--k4-gold);font-size: 0.85rem;border-radius: 999px;padding: 6px 12px}


.k4-footer {background: var(--k4-bg-alt);margin-top: 40px;border-top: 1px solid var(--k4-border);padding: 40px 0 24px}
.k4-footer__grid {display: grid;grid-template-columns: 1.4fr 1fr 1fr;gap: 28px}
.k4-footer__logo {border-radius: 50%;width: 56px;margin-bottom: 10px;height: 56px;object-fit: cover}
.k4-footer__logo-text {font-weight: 800;font-size: 1.1rem;color: var(--k4-gold)}
.k4-footer__desc {font-size: 0.85rem;color: var(--k4-text-muted);max-width: 340px}
.k4-footer__col-title {font-size: 0.9rem;color: var(--k4-gold);margin-bottom: 10px}
.k4-footer__col-list li { margin-bottom: 6px; }
.k4-footer__col-link {color: var(--k4-text-muted);font-size: 0.85rem}
.k4-footer__col-link:hover { color: var(--k4-gold); }
.k4-footer__bottom {flex-wrap: wrap;gap: 6px 16px;margin-top: 28px;display: flex;border-top: 1px solid var(--k4-border);padding-top: 18px}
.k4-footer__copy, .k4-footer__warn {color: var(--k4-text-muted);font-size: 0.78rem;margin: 0}

@media (max-width: 760px) {
  .k4-footer__grid { grid-template-columns: 1fr; }
}


.sf-sticky-cta {transform: translateX(-50%);display: flex;box-shadow: 0 -10px 30px rgba(0, 0, 0, 0.4);align-items: center;bottom: 0;position: fixed;z-index: 999999;left: 50%;padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));gap: 12px;border-top: 2px solid var(--k4-gold);justify-content: space-between;background: var(--k4-bg-alt);width: min(100%, var(--k4-layout-max))}
.sf-sticky-cta__meta {display: flex;line-height: 1.3;flex-direction: column;min-width: 0}
.sf-sticky-cta__meta strong {font-size: 0.95rem;color: var(--k4-gold)}
.sf-sticky-cta__meta span {overflow: hidden;font-size: 0.75rem;color: var(--k4-text-muted);white-space: nowrap;text-overflow: ellipsis}
.sf-sticky-cta__button {font-weight: 800;white-space: nowrap;font-size: 0.9rem;border-radius: 999px;color: rgba(26,20,0,1);background: linear-gradient(135deg, var(--k4-gold), var(--k4-gold-dark));padding: 12px 22px;flex-shrink: 0}
@media (max-width: 480px) {
  .sf-sticky-cta {padding: 10px 12px;gap: 8px}
  .sf-sticky-cta__meta span { display: none; }
  .sf-sticky-cta__button {font-size: 0.85rem;padding: 9px 16px}
}


:where(footer,[class*='-footer']){z-index:1;position:relative;overflow:visible}
:where([class*='footer__grid'],[class*='footer__strip'],[class*='footer__bar']){min-width:0}
:where([class*='footer__grid'],[class*='footer__strip'],[class*='footer__bar'])>*{max-width:100%;min-width:0}
:where([class*='footer__brandblock'],[class*='footer__summary'],[class*='footer__meta'],[class*='footer__copy'],[class*='footer__warn'],[class*='linkstack']){word-break:break-word;overflow-wrap:anywhere}
@media(max-width:760px){
  .sf-has-sticky-cta :where([class*='-shell']),.sf-has-sticky-cta main{padding-bottom:calc(140px + env(safe-area-inset-bottom,0px)) !important}
  .sf-has-sticky-cta main~footer,.sf-has-sticky-cta :where(footer,[class$='-footer']){padding-bottom:calc(112px + env(safe-area-inset-bottom,0px)) !important}
  :where([class*='footer__grid'],[class*='footer__strip'],[class*='footer__bar']){gap:16px !important;display:grid !important;align-items:start !important;grid-template-columns:1fr !important}
  :where([class*='footer__summary'],[class*='footer__bottom']){display:flex;gap:10px;align-items:flex-start;flex-direction:column;text-align:left}
  :where([class*='footer__brand']){max-width:110px;margin-bottom:12px;float:none !important;clear:both;max-height:110px}
}


.sf-related-articles{border:1px solid rgba(148,163,184,.24);box-shadow:0 16px 45px rgba(15,23,42,.08);padding:clamp(18px,3vw,28px);border-radius:24px;max-width:1120px;background:rgba(255,255,255,.06);margin:clamp(28px,5vw,56px) auto}
.sf-related-articles h2{font-size:clamp(1.35rem,2.5vw,2rem);margin:0 0 8px;line-height:1.2}
.sf-related-articles>p{line-height:1.65;margin:0 0 18px;opacity:.78}
.sf-related-articles__list{margin:0;padding:0;gap:14px;list-style:none;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));display:grid}
.sf-related-articles__item{margin:0;list-style:none;padding:0}
.sf-related-articles__link{padding:16px;border-radius:18px;min-height:100%;background:rgba(255,255,255,.08);text-decoration:none;gap:7px;display:flex;color:inherit;transition:transform .18s ease,border-color .18s ease,background .18s ease;border:1px solid rgba(148,163,184,.18);flex-direction:column}
.sf-related-articles__link:hover{border-color:rgba(59,130,246,.45);background:rgba(255,255,255,.13);transform:translateY(-2px)}
.sf-related-articles__type{letter-spacing:.04em;color:inherit;font-size:.72rem;opacity:.88;padding:3px 9px;text-transform:uppercase;background:rgba(59,130,246,.14);width:max-content;font-weight:700;border-radius:999px}
.sf-related-articles strong{font-size:1rem;line-height:1.35}
.sf-related-articles small{line-height:1.45;font-size:.88rem;opacity:.72}
@media(max-width:640px){.sf-related-articles{border-radius:18px;padding:16px;margin:28px 12px}.sf-related-articles__list{grid-template-columns:1fr}.sf-related-articles__link{padding:14px}}