:root{--background:#faf7f7;--surface:#fff;--text-primary:#261c1e;--text-secondary:#665659;--border:#e8dadc;--accent:#8f2c5d;--accent-muted:color-mix(in srgb, var(--accent) 78%, black);--success:#235d3a;--error:#7f1d1d;--grid-line:#d4abb34d;--font-faa:"Helvetica Neue", Helvetica, Arial, sans-serif}@supports (color:lab(0% 0 0)){:root{--surface:lab(100% 0 0);--text-primary:lab(11.647% 5.34302 .591609);--text-secondary:lab(38.2547% 7.36505 .809711);--border:lab(88.2071% 5.37682 .584948);--grid-line:lab(73.8769% 16.7022 1.84767/.3)}}.icon{background-color:var(--accent);width:1.25rem;height:1.25rem;-webkit-mask:var(--icon) no-repeat center / contain;-webkit-mask:var(--icon) no-repeat center / contain;mask:var(--icon) no-repeat center / contain;flex-shrink:0;display:inline-block}.icon-intersection{--icon:url(/intersection.svg)}.icon-flag_1{--icon:url(/flag_1.svg)}.icon-flag_2{--icon:url(/flag_2.svg)}.icon-ctaf{--icon:url(/ctaf.svg)}.icon-obstacle{--icon:url(/obstacle.svg)}.icon-ceiling{--icon:url(/ceiling.svg)}.icon-vor{--icon:url(/vor.svg)}.icon-tools{--icon:url(/tools.svg)}.icon-abandoned{--icon:url(/abandoned.svg)}.icon-airport_fuel{--icon:url(/airport_fuel.svg)}.icon-share{--icon:url(/share.svg)}.icon-inline{vertical-align:-.15em;background-color:currentColor;width:1.1em;height:1.1em}.brand .icon{width:1.62rem;height:1.44rem}h1 .icon{background-color:var(--text-primary);width:1.75rem;height:1.75rem}*{box-sizing:border-box}body{background:linear-gradient(var(--background), var(--background)), repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 32px), repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 32px);color:var(--text-primary);font-family:var(--font-faa);margin:0;font-weight:400}h1{font-family:var(--font-faa);text-transform:uppercase;letter-spacing:.02em;color:var(--text-primary);align-items:center;gap:.65rem;margin:0 0 .75rem;font-size:1.75rem;font-style:italic;font-weight:500;display:flex}h2,h3{font-family:var(--font-faa);text-transform:uppercase;letter-spacing:.04em;font-style:normal;font-weight:500}h2{font-size:1.25rem}h3{font-size:1.05rem}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}.site-shell{flex-direction:column;min-height:100vh;display:flex}.site-header{background:color-mix(in oklch, var(--surface) 70%, transparent);-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);border-bottom:1px solid var(--border);padding:1rem 1.5rem}.site-header-inner{flex-wrap:nowrap;justify-content:space-between;align-items:center;gap:1rem;max-width:960px;margin:0 auto;display:flex}.brand{text-transform:uppercase;letter-spacing:.04em;color:var(--accent);align-items:center;gap:.6rem;min-width:0;font-weight:500;display:flex}.brand:hover{color:var(--accent-muted);text-decoration:none}.brand:hover .icon{background-color:var(--accent-muted)}.nav-toggle{border:1px solid var(--border);background:var(--surface);cursor:pointer;border-radius:6px;flex-direction:column;justify-content:center;align-items:center;gap:.28rem;width:2.5rem;height:2.5rem;margin:0;padding:0;display:none}.nav-toggle-bar{background:var(--accent);width:1.1rem;height:1.5px;transition:transform .15s,opacity .15s;display:block}.site-header.is-open .nav-toggle-bar:first-child{transform:translateY(.34rem)rotate(45deg)}.site-header.is-open .nav-toggle-bar:nth-child(2){opacity:0}.site-header.is-open .nav-toggle-bar:nth-child(3){transform:translateY(-.34rem)rotate(-45deg)}.main-nav{text-transform:uppercase;letter-spacing:.04em;flex-wrap:wrap;gap:.9rem;font-size:.85rem;font-style:italic;font-weight:500;display:flex}.main-nav a{color:var(--accent);align-items:center;gap:.4rem;display:inline-flex}.main-nav a:hover{color:var(--accent-muted);text-decoration:none}.main-nav a:hover .icon{background-color:var(--accent-muted)}.main-nav .icon{width:1.38rem;height:1.38rem}@media (min-width:721px){.main-nav .nav-icon-link .nav-label{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}}@media (max-width:720px){.site-header{padding:.85rem 1rem}.site-header-inner{flex-wrap:wrap}.brand{font-size:.92rem}.nav-toggle{flex-shrink:0;margin-left:auto;display:inline-flex}.main-nav{flex-flow:column;flex-basis:100%;gap:0;width:100%;padding-top:.35rem;display:none}.site-header.is-open .main-nav{display:flex}.main-nav a{border-top:1px solid var(--border);padding:.75rem .15rem}}.main-content{flex:1;width:100%;max-width:960px;margin:0 auto;padding:1.5rem}.site-footer{border-top:1px solid var(--border);text-align:center;color:var(--text-secondary);background:var(--surface);justify-content:center;align-items:center;gap:.45rem;padding:1rem 1.5rem;font-size:.85rem;display:flex}.site-footer .icon{background-color:var(--text-secondary);width:1rem;height:1rem}.page-card{background:var(--surface);border:1px solid var(--border);border-radius:8px;margin-bottom:1rem;padding:1.25rem}.grid-two{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem;display:grid}.home-layout{gap:1rem;display:grid}@media (max-width:720px){.home-rail{order:-1}}@media (min-width:721px){.home-layout{grid-template-columns:minmax(0,66fr) minmax(0,34fr);align-items:start}.home-rail:only-child{grid-column:1/-1}}.home-main .page-card:last-child,.home-rail .page-card{margin-bottom:0}.airpop-card{padding:0;overflow:hidden}.airpop-embed{border:0;width:100%;height:clamp(280px,50vh,520px);display:block}.tool-card h1{text-align:center;justify-content:center}.tool-card h2{text-transform:none;letter-spacing:normal;margin:0 0 1rem}.tool-download{text-align:center}.tool-preview{border:1px solid var(--border);border-radius:6px;width:100%;max-width:480px;height:auto;margin-bottom:.75rem;display:block}.tool-preview-video{max-width:220px}.tool-howto{align-items:start;gap:1rem 1.25rem;margin-bottom:.75rem;display:grid}.tool-howto .tool-preview{margin-bottom:0}.tool-howto ol{counter-reset:tool-step;margin:0;padding:0;list-style:none}.tool-howto li{counter-increment:tool-step;border-bottom:1px solid var(--border);grid-template-columns:1.65rem minmax(0,1fr);align-items:start;gap:.7rem;padding:.7rem 0;display:grid}.tool-howto li:first-child{padding-top:0}.tool-howto li:last-child{border-bottom:none;padding-bottom:0}.tool-howto li:before{content:counter(tool-step);background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:1.65rem;height:1.65rem;font-size:.75rem;font-weight:500;line-height:1;display:flex}@media (min-width:640px){.tool-howto{grid-template-columns:auto minmax(0,1fr)}}.tool-links{flex-direction:column;gap:.25rem;display:flex}.event-image{object-fit:cover;border:1px solid var(--border);background:#fbeeef;background:lab(95.1996% 4.65152 .973153);border-radius:6px;width:100%;height:180px}.meta{color:var(--text-secondary);font-size:.92rem}.btn{border:1px solid var(--accent);background:var(--accent);color:#fff;text-transform:uppercase;letter-spacing:.06em;cursor:pointer;border-radius:6px;padding:.55rem .85rem;font-family:inherit;font-size:.85rem;font-weight:500;display:inline-block}.btn:hover{background:var(--accent-muted);text-decoration:none}.btn-secondary{color:var(--accent);background:0 0}.contact-form{text-align:right}.contact-form label{text-align:left;letter-spacing:.02em;color:var(--accent);font-style:normal;font-weight:500;display:block}.contact-form .field,.contact-form .field-error,.contact-form .message-success,.contact-form .message-error{text-align:left}.field{border:1px solid var(--border);background:var(--surface);border-radius:6px;width:100%;margin-top:.35rem;margin-bottom:.75rem;padding:.6rem;font-family:inherit;font-size:1rem;display:block}.message-success{color:var(--success)}.message-error{color:var(--error)}.field-error{color:var(--error);margin-top:-.5rem;margin-bottom:.75rem;font-size:.85rem}