:root{--color-background:#f5f5f7;--color-surface:#ffffff;--color-surface-muted:#f5f5f7;--color-border:rgba(0,0,0,0.08);--color-border-strong:rgba(0,0,0,0.16);--color-text:#1d1d1f;--color-text-muted:#6e6e73;--color-primary:#06c;--color-primary-dark:#0040b7;--color-link:#06c;--color-link-hover:#0040b7;--color-nav-bg:rgba(22,22,23,0.8);--color-nav-bg-hover:rgba(22,22,23,0.6);--color-footer-bg:#1d1d1f;--color-footer-text:rgba(255,255,255,0.72);--radius-small:12px;--radius-medium:18px;--radius-large:28px;--shadow-soft:0 6px 24px rgba(0,0,0,0.08);--shadow-subtle:0 2px 12px rgba(0,0,0,0.06);--shadow-header:0 1px 0 rgba(255,255,255,0.08);--max-width:min(980px,100vw);--spacing-base:1rem;--nav-height:44px;--font-sans:"SF Pro Text","SF Pro Icons","Helvetica Neue",Helvetica,Arial,sans-serif;--font-display:"SF Pro Display","SF Pro Icons","Helvetica Neue",Helvetica,Arial,sans-serif;--font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;}*,*::before,*::after{box-sizing:border-box;}html{font-size:16px;line-height:1.5;scroll-behavior:smooth;}body{margin:0;min-height:100vh;background:var(--color-background);color:var(--color-text);font-family:var(--font-sans);font-size:17px;font-weight:400;line-height:1.4706;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}body.modern-theme{background:var(--color-background);color:var(--color-text);}a{color:var(--color-link);text-decoration:none;transition:color 0.2s ease;}a:hover,a:focus{color:var(--color-link-hover);text-decoration:underline;}a:active{color:var(--color-link);}img,video{max-width:100%;height:auto;border:0;display:block;}p,ul,ol,dl,blockquote,pre,figure,table,fieldset{margin-top:0;margin-bottom:1.5rem;}ul,ol{padding-left:1.3rem;}h1,h2,h3,h4,h5,h6{margin:0 0 1rem;line-height:1.3;font-weight:600;color:var(--color-text);}h1{font-size:clamp(1.9rem,1.6rem + 0.9vw,2.6rem);line-height:1.2;font-weight:700;letter-spacing:-0.02em;}h2{font-size:clamp(1.85rem,1.6rem + 0.8vw,2.35rem);line-height:1.2;letter-spacing:-0.015em;}h3{font-size:clamp(1.5rem,1.35rem + 0.45vw,1.85rem);line-height:1.25;}h4{font-size:1.2rem;}h5{font-size:1.05rem;}h6{font-size:.95rem;text-transform:uppercase;letter-spacing:.08em;}code,pre,kbd{font-family:var(--font-mono);}code,kbd{padding:.1rem .35rem;background:var(--color-surface-muted);border-radius:var(--radius-small);font-size:.95rem;}pre{padding:1rem 1.25rem;border-radius:var(--radius-medium);background:#0f172a;color:#e2e8f0;overflow:auto;}blockquote{margin:2rem 0;padding:1.5rem 2rem;border-left:4px solid var(--color-primary);background:rgba(0,102,204,0.1);border-radius:0 var(--radius-large) var(--radius-large) 0;color:var(--color-text);}hr{border:0;border-top:1px solid var(--color-border);margin:2.5rem 0;}.table,table{width:100%;border-collapse:collapse;background:#fff;border-radius:18px;overflow:hidden;border:1px solid rgba(0,0,0,0.08);box-shadow:none;}table th,table td{padding:0.85rem 1.1rem;text-align:left;border-bottom:1px solid var(--color-border);}table thead th{background:var(--color-surface-muted);font-weight:600;color:var(--color-text-muted);}table tbody tr:nth-child(even){background:rgba(16,26,44,0.04);}table tbody tr:hover{background:rgba(0,113,227,0.12);}button,input,select,textarea{font:inherit;color:inherit;}input[type="text"],input[type="email"],input[type="url"],input[type="search"],input[type="password"],input[type="number"],textarea,select{width:100%;padding:0.7rem 0.85rem;border-radius:var(--radius-small);border:1px solid var(--color-border);background:var(--color-surface);transition:border-color 0.2s ease,box-shadow 0.2s ease;}input:focus,textarea:focus,select:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px rgba(13,71,161,0.2);}.form-submit,button,input[type="submit"],input[type="button"],.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:0.7rem 1.4rem;border:none;border-radius:var(--radius-small);background:var(--color-primary);color:#fff;font-weight:600;line-height:1.2;cursor:pointer;transition:transform 0.2s ease,box-shadow 0.2s ease,background 0.2s ease;}.form-submit:hover,button:hover,input[type="submit"]:hover,input[type="button"]:hover,.button:hover{background:var(--color-primary-dark);box-shadow:0 8px 18px rgba(13,71,161,0.25);}.button-secondary{background:rgba(13,71,161,0.12);color:var(--color-primary);}.button-secondary:hover{background:rgba(13,71,161,0.18);}.visually-hidden{position:absolute !important;clip:rect(1px,1px,1px,1px);padding:0 !important;border:0 !important;height:1px !important;width:1px !important;overflow:hidden;}.visually-hidden--focusable:active,.element-invisible{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}.visually-hidden--focusable:focus{clip:auto !important;height:auto !important;width:auto !important;margin:0;overflow:visible;position:static !important;}.skip-link__wrapper{position:absolute;top:0;left:0;right:0;text-align:center;z-index:999;}.skip-link{display:inline-block;padding:.75rem 1.5rem;background:var(--color-primary);color:#fff;border-radius:0 0 var(--radius-small) var(--radius-small);box-shadow:var(--shadow-subtle);}.page-wrapper{width:100%;}.ac-page{background:var(--color-background);padding-bottom:4rem;}.ac-promo{background:#1d1d1f;color:#f5f5f7;font-size:0.875rem;letter-spacing:.01em;}.ac-promo__inner{max-width:var(--max-width);margin:0 auto;padding:0.65rem 1rem;text-align:center;}.ac-promo__inner a{color:inherit;text-decoration:underline;}.ac-promo__inner a:hover,.ac-promo__inner a:focus{color:#fff;}.ac-globalnav{position:sticky;top:0;z-index:320;width:100%;background:var(--color-nav-bg);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid rgba(255,255,255,0.12);color:rgba(255,255,255,0.92);}.ac-globalnav__inner{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:1.25rem;padding:0 1.5rem;min-height:var(--nav-height);}.ac-globalnav__brand{display:flex;align-items:center;gap:0.5rem;min-width:0;}.ac-globalnav__logo,.ac-globalnav__name{display:inline-flex;align-items:center;justify-content:center;color:rgba(255,255,255,0.92);font-size:0.95rem;font-weight:600;letter-spacing:-0.01em;}.ac-globalnav__logo img{display:block;height:24px;width:auto;filter:brightness(0) invert(1);}.ac-globalnav__slogan{display:none;}.ac-globalnav__nav{width:100%;}.ac-globalnav__nav.is-ready{position:absolute;top:var(--nav-height);left:0;right:0;background:var(--color-nav-bg);padding:1.5rem 1.5rem 2rem;border-bottom:1px solid rgba(255,255,255,0.12);display:none;z-index:310;box-shadow:0 30px 60px rgba(0,0,0,0.2);}.ac-globalnav__nav.is-ready.is-open{display:block;}.ac-globalnav__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0.85rem;}.ac-globalnav__list > li > a{display:block;color:rgba(255,255,255,0.92);font-size:0.95rem;font-weight:500;letter-spacing:-0.01em;padding:0.35rem 0;transition:color 0.2s ease;text-align:center;white-space:normal;overflow-wrap:anywhere;}.ac-globalnav__list > li > a:hover,.ac-globalnav__list > li > a:focus{color:#fff;text-decoration:none;}.ac-globalnav__list > li.active > a,.ac-globalnav__list > li.active-trail > a{color:#fff;}.ac-globalnav__supplemental{margin-top:1.5rem;border-top:1px solid rgba(255,255,255,0.12);padding-top:1.5rem;color:rgba(255,255,255,0.78);font-size:0.9375rem;text-align:center;overflow-wrap:anywhere;}.ac-quicklinks__list{list-style:none;margin:0;padding:0;display:flex;gap:0.75rem;flex-wrap:wrap;justify-content:center;}.ac-quicklinks{display:none;}.ac-quicklinks__list a{color:rgba(255,255,255,0.72);font-size:0.875rem;transition:color 0.2s ease;}.ac-quicklinks__list a:hover,.ac-quicklinks__list a:focus{color:#fff;}.ac-globalnav__actions{display:flex;align-items:center;gap:0.75rem;color:rgba(255,255,255,0.88);margin-left:auto;}.ac-globalnav__menu-toggle{display:inline-flex;align-items:center;justify-content:center;gap:0.45rem;padding:0.35rem 0.9rem;border-radius:999px;border:1px solid rgba(255,255,255,0.18);background:transparent;color:inherit;cursor:pointer;transition:border-color 0.2s ease,background 0.2s ease;}.ac-globalnav__menu-toggle:hover,.ac-globalnav__menu-toggle:focus{background:rgba(255,255,255,0.12);border-color:rgba(255,255,255,0.24);}.ac-globalnav__menu-icon{position:relative;width:1.1rem;height:2px;background:currentColor;border-radius:999px;}.ac-globalnav__menu-icon::before,.ac-globalnav__menu-icon::after{content:"";position:absolute;left:0;width:100%;height:2px;background:currentColor;border-radius:999px;transition:transform 0.2s ease,top 0.2s ease;}.ac-globalnav__menu-icon::before{top:-0.4rem;}.ac-globalnav__menu-icon::after{top:0.4rem;}#nav-toggle[aria-expanded="true"] .ac-globalnav__menu-icon{background:transparent;}#nav-toggle[aria-expanded="true"] .ac-globalnav__menu-icon::before{top:0;transform:rotate(45deg);}#nav-toggle[aria-expanded="true"] .ac-globalnav__menu-icon::after{top:0;transform:rotate(-45deg);}.ac-globalnav__menu-label{margin-left:0.5rem;font-size:0.9rem;font-weight:600;letter-spacing:-0.01em;color:inherit;}@media (max-width:640px){:root{--max-width:100vw;}.ac-globalnav__inner{padding:0 1rem;}.ac-globalnav__nav.is-ready{padding:1.5rem 1.1rem 2rem;}.ac-hero{margin:2.75rem 0 2rem;border-radius:0;padding:3rem 1.25rem;}.ac-layout{padding:0 1rem;}.layout-grid__main{border-radius:0;padding:2.75rem 2rem;margin-left:-1rem;margin-right:-1rem;width:calc(100% + 2rem);}.layout-grid__sidebar{border-radius:24px;padding:2rem 1.5rem;}}.ac-hero{margin:3.5rem auto 3rem;padding:3.5rem 1.5rem;text-align:center;background:var(--color-surface);border-radius:36px;max-width:var(--max-width);box-shadow:var(--shadow-soft);}.ac-hero__inner{max-width:760px;margin:0 auto;}.ac-hero h1{font-family:var(--font-display);font-size:clamp(2.25rem,1.9rem + 1.5vw,3.1rem);font-weight:600;line-height:1.12;letter-spacing:-0.02em;margin-bottom:0.75rem;}.ac-hero p{font-size:1.25rem;color:var(--color-text-muted);margin-bottom:1.25rem;}.ac-hero a{font-weight:600;}.ac-layout{max-width:var(--max-width);margin:0 auto;padding:0 1.5rem;}.layout-grid{display:flex;flex-direction:column;gap:2.75rem;width:100%;}.layout-grid__main{order:1;background:var(--color-surface);border-radius:36px;border:1px solid rgba(0,0,0,0.04);box-shadow:0 12px 30px rgba(0,0,0,0.08);padding:3rem;min-width:0;}.layout-grid__main--full{padding:3.5rem 3rem;}.layout-grid__sidebar{order:2;background:var(--color-surface);border-radius:28px;border:1px solid rgba(0,0,0,0.05);box-shadow:0 10px 24px rgba(0,0,0,0.06);padding:2rem;min-width:0;}.layout-grid__sidebar--second{order:3;}.block{margin-bottom:1.75rem;}.block:last-child{margin-bottom:0;}.block > h2{margin-bottom:0.75rem;font-size:0.875rem;letter-spacing:0.08em;text-transform:uppercase;color:var(--color-text-muted);}.block ul{padding-left:1rem;margin:0;}.block a:hover{color:var(--color-link);}.page-title{margin-bottom:1.5rem;font-family:var(--font-display);font-size:clamp(2.35rem,2rem + 1.4vw,3.15rem);font-weight:600;letter-spacing:-0.02em;color:var(--color-text);text-shadow:none;}.page-breadcrumb{margin-bottom:1.5rem;font-size:0.875rem;color:var(--color-text-muted);}.page-breadcrumb .breadcrumb__list{display:flex;flex-wrap:wrap;gap:0.5rem;padding:0;margin:0;list-style:none;}.page-breadcrumb .breadcrumb__separator{color:rgba(0,0,0,0.24);}.page-breadcrumb .breadcrumb__item{color:var(--color-text-muted);}.page-breadcrumb a{color:inherit;}.page-breadcrumb a:hover,.page-breadcrumb a:focus{color:var(--color-link);}.breadcrumb__title{display:none !important;}.page-content > *:last-child,.layout-grid__sidebar > *:last-child{margin-bottom:0;}.page-content,.page-content p,.page-content a,.layout-grid__sidebar,.layout-grid__sidebar a,.ac-globalfooter__content,.ac-globalfooter__content a{overflow-wrap:anywhere;word-break:break-word;}.messages{margin-bottom:1.5rem;padding:1rem 1.25rem;border-radius:16px;border:1px solid rgba(0,0,0,0.08);background:#fff;box-shadow:none;}.messages--status{border-color:rgba(52,199,89,0.4);background:rgba(52,199,89,0.12);color:#2b8a3e;}.messages--warning{border-color:rgba(255,159,10,0.36);background:rgba(255,159,10,0.14);color:#8c5a00;}.messages--error{border-color:rgba(255,69,58,0.36);background:rgba(255,69,58,0.14);color:#b81c21;}.pager{display:flex;flex-wrap:wrap;gap:0.5rem;list-style:none;margin:2rem 0 0;padding:0;font-size:0.9375rem;}.pager li{margin:0;}.pager a,.pager span,.pager .pager-current{display:inline-flex;align-items:center;justify-content:center;min-width:2.25rem;padding:0.45rem 0.85rem;border-radius:999px;border:1px solid rgba(0,0,0,0.12);background:#fff;color:var(--color-text);transition:color 0.2s ease,border-color 0.2s ease,background 0.2s ease;}.pager a:hover,.pager a:focus{border-color:var(--color-link);color:var(--color-link);text-decoration:none;}.pager .pager-current,.pager li.is-active span{background:var(--color-link);border-color:var(--color-link);color:#fff;}.pager li.pager-ellipsis span{border-color:transparent;background:transparent;color:var(--color-text-muted);}.page-help{margin:1.5rem 0 2rem;padding:1.4rem 1.6rem;border-radius:18px;border:1px solid rgba(0,0,0,0.08);background:#fff;}ul.action-links{list-style:none;display:flex;flex-wrap:wrap;gap:0.75rem;padding:0;margin:0 0 1.75rem;}ul.action-links a{display:inline-flex;align-items:center;padding:0.5rem 1.1rem;border-radius:999px;border:1px solid rgba(0,0,0,0.12);background:#fff;font-weight:600;color:var(--color-text);transition:color 0.2s ease,border-color 0.2s ease,background 0.2s ease;}ul.action-links a:hover,ul.action-links a:focus{border-color:var(--color-link);color:var(--color-link);text-decoration:none;}ul.tabs{list-style:none;padding:0;margin:2rem 0 1.75rem;display:flex;flex-wrap:wrap;gap:0.5rem;}ul.tabs li{margin:0;}ul.tabs li a,ul.tabs li span{display:inline-flex;align-items:center;padding:0.45rem 0.95rem;border-radius:999px;border:1px solid rgba(0,0,0,0.12);background:#fff;font-weight:600;color:var(--color-text);transition:border-color 0.2s ease,background 0.2s ease,color 0.2s ease;overflow-wrap:anywhere;text-decoration:none;}ul.tabs li a:hover,ul.tabs li a:focus{border-color:var(--color-link);color:var(--color-link);background:rgba(0,102,204,0.1);text-decoration:none;}ul.tabs li.active a,ul.tabs li.is-active a,ul.tabs li.active span,ul.tabs li.is-active span{background:var(--color-link);border-color:var(--color-link);color:#fff;}ul.primary,ul.secondary{list-style:none;padding:0;margin:2rem 0 1.75rem;display:flex;flex-wrap:wrap;gap:0.5rem;}ul.primary li,ul.secondary li{margin:0;}ul.primary li a,ul.secondary li a{display:inline-flex;align-items:center;padding:0.45rem 0.9rem;border-radius:999px;background:rgba(0,0,0,0.05);font-weight:600;color:var(--color-text);transition:background 0.2s ease,color 0.2s ease;}ul.primary li a:hover,ul.secondary li a:hover,ul.primary li a:focus,ul.secondary li a:focus{background:rgba(0,102,204,0.14);color:var(--color-link);text-decoration:none;}ul.primary li.active a,ul.secondary li.active a{background:var(--color-link);color:#fff;}.page-feed-icons{margin-top:2.5rem;font-size:.9rem;}.ac-globalfooter{margin:4rem 0 0;background:#f5f5f7;border-top:1px solid rgba(0,0,0,0.08);padding:3rem 1.5rem 4rem;color:var(--color-text-muted);font-size:0.8125rem;line-height:1.4;}.ac-globalfooter__inner{max-width:var(--max-width);margin:0 auto;display:flex;flex-direction:column;gap:1.75rem;}.ac-globalfooter__inner a{color:inherit;}.ac-globalfooter__inner a:hover,.ac-globalfooter__inner a:focus{color:var(--color-link);}.ac-globalfooter__content{display:grid;gap:1.5rem 2rem;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));}.ac-globalfooter__content ul{list-style:none;margin:0;padding:0;display:grid;gap:0.45rem;}.ac-globalfooter__content li{margin:0;}@media (min-width:640px){.ac-hero{padding:4rem 3rem;}.ac-globalfooter__inner{gap:2.25rem;}}@media (min-width:834px){.ac-globalnav__inner{padding:0 2rem;}.ac-globalnav__nav,.ac-globalnav__nav.is-ready{position:static;display:flex !important;align-items:center;justify-content:center;background:transparent;border-bottom:none;padding:0;flex:1 1 auto;}.ac-globalnav__list{flex-direction:row;gap:1.5rem;}.ac-globalnav__list > li > a{font-size:0.9375rem;padding:0;white-space:nowrap;overflow-wrap:normal;}.ac-globalnav__supplemental{margin-top:0;border-top:none;padding-top:0;margin-left:2rem;text-align:left;}.ac-globalnav__actions{gap:1.25rem;}.ac-globalnav__menu-toggle{display:none;}.ac-quicklinks{display:block;}}@media (min-width:1024px){.ac-layout{padding:0 2rem;}.layout-grid--two,.layout-grid--three{flex-direction:row;align-items:flex-start;gap:2.5rem;}.layout-grid__main{flex:1 1 auto;order:1;}.layout-grid__sidebar{flex:0 0 300px;padding:2.25rem;}.layout-grid--three .layout-grid__sidebar{flex-basis:260px;}.layout-grid__sidebar--first{order:0;}.layout-grid__sidebar--second{order:2;}}@media (min-width:1200px){.ac-layout{padding:0 2.5rem;}.ac-globalfooter{padding-left:0;padding-right:0;}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms !important;animation-iteration-count:1 !important;transition-duration:0.01ms !important;scroll-behavior:auto !important;}}