:root{--ppl-primary:#5B9BD5;--ppl-light:#D6EAF8;--ppl-lighter:#EBF5FB;--ppl-accent:#2E86C1;--ppl-card:#E8F4FD;--aero-primary:#8E6BBF;--aero-light:#E8DAFF;--aero-lighter:#F3EEFF;--aero-accent:#6C3483;--aero-card:#F0E8FF;--bg:#F7F9FC;--surface:#FFFFFF;--border:#E0E7EF;--fuel-trip-border:#5B9BD5;--fuel-takeoff-border:#27AE60;--fuel-takeoff-dark:#0d2818;--fuel-landing-border:#E74C3C;--fuel-landing-dark:#2d0f0f;--text:#2C3E50;--text-muted:#7F8C9A;--shadow:0 2px 12px rgba(0,0,0,0.08);--shadow-hover:0 6px 24px rgba(0,0,0,0.14);--radius:12px;--radius-sm:8px}body.dark{--ppl-primary:#5B9BD5;--ppl-light:#1a3a55;--ppl-lighter:#122940;--ppl-accent:#7ab8e8;--ppl-card:#152840;--aero-primary:#9d7fd4;--aero-light:#2e1f4a;--aero-lighter:#221538;--aero-accent:#b89de8;--aero-card:#211440;--bg:#0f1117;--surface:#1a1d27;--border:#2e3244;--text:#e2e8f0;--text-muted:#8892a4;--shadow:0 2px 12px rgba(0,0,0,0.4);--shadow-hover:0 6px 24px rgba(0,0,0,0.6)}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',system-ui,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}nav{position:sticky;top:0;z-index:1000;background:var(--surface);border-bottom:1px solid var(--border);box-shadow:var(--shadow)}.nav-inner{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:8px;padding:0 24px;height:60px}.nav-inner .logo{flex:0 0 auto}.nav-center{display:flex;align-items:center;gap:32px;flex:1;justify-content:flex-start;padding-left:16px}.logo{font-size:1.9rem;font-weight:600;color:var(--ppl-accent);margin-right:16px;white-space:nowrap;display:flex;align-items:center;gap:7px}.nav-section{position:relative}.nav-btn{display:flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);border:none;background:0 0;cursor:pointer;font-size:1.25rem;font-weight:500;transition:background .2s}.nav-btn.ppl{color:var(--ppl-accent)}.nav-btn.ppl.active,.nav-btn.ppl:hover{background:var(--ppl-light)}.nav-btn.aero{color:var(--aero-accent)}.nav-btn.aero.active,.nav-btn.aero:hover{background:var(--aero-light)}.nav-btn svg{transition:transform .2s}.nav-btn.open svg{transform:rotate(180deg)}.dropdown{display:none;position:absolute;top:calc(100% + 8px);left:0;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-hover);min-width:680px;padding:16px;grid-template-columns:repeat(3,1fr);gap:8px}.dropdown.show{display:grid}.dropdown.ppl-drop{border-top:3px solid var(--ppl-primary)}.dropdown.aero-drop{border-top:3px solid var(--aero-primary)}.drop-group h4{font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted);padding:4px 8px 6px;border-bottom:1px solid var(--border);margin-bottom:4px;display:flex;align-items:center;gap:5px}.drop-group h4 i{font-size:.85rem}.drop-item{display:block;padding:7px 10px;border-radius:var(--radius-sm);font-size:.875rem;cursor:pointer;border:none;background:0 0;text-align:left;width:100%;transition:background .15s}.ppl-drop .drop-item:hover{background:var(--ppl-lighter);color:var(--ppl-accent)}.aero-drop .drop-item:hover{background:var(--aero-lighter);color:var(--aero-accent)}.dark-toggle{margin-left:auto;padding:6px 10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);cursor:pointer;font-size:1.1rem;color:var(--text-muted);transition:background .2s,color .2s;display:flex;align-items:center}.dark-toggle:hover{background:var(--border);color:var(--text)}.page{max-width:1280px;margin:0 auto;padding:24px}.content-wrap{display:flex;gap:24px;align-items:flex-start}.main-area{flex:1;min-width:0}#home{animation:fadeIn .3s}.hero{border-radius:var(--radius);border:1px solid #1e2f42;margin-bottom:32px;overflow:hidden}.hero-split{display:grid;grid-template-columns:1fr 1fr;min-height:220px}.hero-left{background:#141e2b;padding:32px 28px;display:flex;flex-direction:column;justify-content:center}.hero-right{background:#0e1720;border-left:2px solid #2e86c1;overflow:hidden;position:relative;min-height:220px}.hero-eyebrow{font-size:.68rem;font-weight:600;color:#2e86c1;letter-spacing:.1em;text-transform:uppercase;margin-bottom:12px}.hero-left h1{font-size:2.2rem;font-weight:700;margin-bottom:10px;line-height:1.1}.hero-title-dark{color:#e8edf2}.hero-title-blue{color:#2e86c1;font-weight:400}.hero-left>p{color:#8fa8be;font-size:.92rem;margin-bottom:18px;line-height:1.5}.hero-stats{display:flex;gap:18px;flex-wrap:wrap;margin-bottom:18px}.hero-stat{display:flex;align-items:center;gap:5px;font-size:.8rem;color:#6a8099}.hero-stat i{font-size:.9rem}.hero-cats{display:flex;gap:8px;flex-wrap:wrap}.hero-cat{font-size:.73rem;font-weight:600;padding:4px 13px;border-radius:20px}.hero-cat.ppl{border:1px solid #2e86c1;color:#5b9bd5;background:0 0}.hero-cat.aero{border:1px solid #7b5ea7;color:#9b7de8;background:0 0}.hp-animated{position:absolute;font-family:ui-monospace,'Cascadia Code',monospace;white-space:nowrap;display:flex;align-items:center;gap:6px;padding:5px 12px;border-radius:20px;font-size:.75rem;background:#1a2a3a;pointer-events:none;opacity:0;transition:opacity .8s ease}.hp-animated.hp-blue{border:1px solid #2d5070;color:#7ab8e8}.hp-animated.hp-blue .hp-val{color:#fff;font-weight:700;margin-left:4px}.hp-animated.hp-purple{border:1px solid #4a3468;color:#c4aaee}.hp-animated.hp-purple .hp-val{color:#fff;font-weight:700;margin-left:4px}.section-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:32px;width:100%}.section-card{border-radius:var(--radius);padding:24px;border:1px solid transparent;transition:all .25s}.section-card.ppl-card{background:var(--ppl-card);border-color:var(--ppl-light)}.section-card.ppl-card:hover{border-color:var(--ppl-primary);box-shadow:var(--shadow-hover)}.section-card.aero-card{background:var(--aero-card);border-color:var(--aero-light)}.section-card.aero-card:hover{border-color:var(--aero-primary);box-shadow:var(--shadow-hover)}.section-card h2{font-size:1.6rem;font-weight:600;margin-bottom:8px;display:flex;align-items:center;gap:8px}.section-card h2 i{font-size:1.4rem}.section-card.ppl-card h2{color:var(--ppl-accent)}.section-card.aero-card h2{color:var(--aero-accent)}.section-card p{font-size:.88rem;color:var(--text-muted);margin-bottom:12px}.pill-list{display:flex;flex-wrap:wrap;gap:6px}.pill{font-size:.75rem;padding:4px 12px;border-radius:99px;font-weight:500;border:none;cursor:pointer;transition:all .15s}.ppl-card .pill{background:var(--ppl-light);color:var(--ppl-accent)}.ppl-card .pill:hover{background:var(--ppl-primary);color:#fff}.aero-card .pill{background:var(--aero-light);color:var(--aero-accent)}.aero-card .pill:hover{background:var(--aero-primary);color:#fff}.tool-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}.tool-group-label{display:flex;align-items:center;gap:5px;font-size:.68rem;font-weight:600;letter-spacing:.07em;text-transform:uppercase;color:var(--text-muted);padding-bottom:5px;border-bottom:1px solid var(--border);margin-bottom:5px}.tool-group-label i{font-size:.82rem}.tool-links{display:flex;flex-direction:column}.tool-link{display:block;padding:4px 6px;border-radius:var(--radius-sm);font-size:.83rem;cursor:pointer;border:none;background:0 0;text-align:left;width:100%;transition:background .12s,color .12s;color:var(--text)}.ppl-card .tool-link:hover{background:var(--ppl-lighter);color:var(--ppl-accent)}.aero-card .tool-link:hover{background:var(--aero-lighter);color:var(--aero-accent)}.calc-view{display:none;animation:fadeIn .25s}.calc-view.active{display:block}.calc-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.calc-header .badge{font-size:.7rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:4px 10px;border-radius:99px}.badge.ppl{background:var(--ppl-light);color:var(--ppl-accent)}.badge.aero{background:var(--aero-light);color:var(--aero-accent)}.calc-header h2{font-size:1.6rem;font-weight:600}.calc-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:28px;box-shadow:var(--shadow)}.ap-wrap{position:relative}.ap-dropdown{position:absolute;z-index:9999;left:0;right:0;top:calc(100% + 2px);background:var(--surface);border:1px solid var(--ppl-primary);border-radius:var(--radius-sm);box-shadow:0 6px 20px rgba(0,0,0,.15);max-height:220px;overflow-y:auto}.ap-item{padding:9px 13px;cursor:pointer;font-size:.88rem;border-bottom:1px solid 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h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:12px}.result-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.result-item{background:var(--surface);border-radius:var(--radius-sm);padding:12px 16px;border:1px solid var(--border)}.result-item .r-label{font-size:.78rem;color:var(--text-muted);margin-bottom:4px}.result-item .r-value{font-size:1.2rem;font-weight:600}.result-item.ppl .r-value{color:var(--ppl-accent)}.result-item.aero .r-value{color:var(--aero-accent)}.result-item.danger-item{border-left:3px solid #e74c3c}.result-item.danger-item .r-value{color:#e74c3c}.result-item.warning-item{border-left:3px solid #e67e22}.result-item.fuel-trip{border:2px solid var(--fuel-trip-border);background:var(--ppl-lighter)}.result-item.fuel-takeoff{border:2px solid var(--fuel-takeoff-border);background:#e9f7ef}.result-item.fuel-landing{border:2px solid var(--fuel-landing-border);background:#fdedec}.result-item.fuel-trip .r-value{color:var(--fuel-trip-border)}.result-item.fuel-takeoff .r-value{color:var(--fuel-takeoff-border)}.result-item.fuel-landing .r-value{color:var(--fuel-landing-border)}body.dark .result-item.fuel-takeoff{background:var(--fuel-takeoff-dark);border-color:#27ae60}body.dark .result-item.fuel-landing{background:var(--fuel-landing-dark);border-color:#ff6b6b}.result-item.fuel-trip{text-align:center}.result-item.fuel-takeoff{text-align:center}.result-item.fuel-landing{text-align:center}.result-grid-featured{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:12px}.result-grid-featured .result-item{text-align:center}body.dark .result-grid-featured .result-item.fuel-trip{background:var(--ppl-lighter);border-color:var(--fuel-trip-border)}body.dark .result-grid-featured .result-item.fuel-takeoff{background:var(--fuel-takeoff-dark);border-color:#27ae60}body.dark .result-grid-featured .result-item.fuel-landing{background:var(--fuel-landing-dark);border-color:#ff6b6b}.metar-decoded{margin-top:16px}.metar-decoded .m-row{display:flex;gap:12px;padding:8px 0;border-bottom:1px solid var(--border);font-size:.9rem}.metar-decoded .m-row:last-child{border-bottom:none}.m-key{font-weight:600;min-width:160px;color:var(--text-muted);font-size:.82rem}.m-val{color:var(--text)}.note{font-size:.8rem;color:var(--text-muted);margin-top:8px;font-style:italic}.error{color:#e74c3c;font-size:.85rem;margin-top:8px}.wx-summary{border-radius:var(--radius);padding:16px 20px;margin-bottom:14px;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.wx-vfr{background:#f0fdf4;border:2px solid #16a34a}.wx-mvfr{background:#eff6ff;border:2px solid #2563eb}.wx-ifr{background:#fef2f2;border:2px solid #dc2626}.wx-lifr{background:#faf5ff;border:2px solid #7c3aed}.wx-unknown{background:var(--bg);border:2px solid var(--border)}.wx-cat-badge{font-size:1.1rem;font-weight:800;padding:8px 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#16a34a}.cat-extreme{background:#7c3aed;color:#fff}.cat-veryhigh{background:#dc2626;color:#fff}.cat-high{background:#ea580c;color:#fff}.cat-sig-info{background:#2563eb;color:#fff}.cat-cnl{background:#16a34a;color:#fff}.wx-meta{display:flex;gap:20px;flex-wrap:wrap;flex:1}.wx-meta-item{display:flex;flex-direction:column;min-width:80px}.wx-meta-lbl{font-size:.68rem;text-transform:uppercase;color:var(--text-muted);font-weight:700;letter-spacing:.07em;margin-bottom:2px}.wx-meta-val{font-size:.95rem;font-weight:700;color:var(--text)}.rwy-card{background:var(--bg);border-radius:var(--radius-sm);border:1px solid var(--border);padding:14px 18px;margin-bottom:14px;display:flex;gap:0;flex-wrap:wrap}.rwy-card-title{font-size:.7rem;text-transform:uppercase;color:var(--text-muted);font-weight:700;letter-spacing:.07em;margin-bottom:10px;width:100%}.rwy-items{display:flex;gap:24px;flex-wrap:wrap;width:100%}.rwy-item{display:flex;flex-direction:column;align-items:center;min-width:90px}.rwy-lbl{font-size:.7rem;color:var(--text-muted);font-weight:600;text-transform:uppercase;margin-bottom:3px}.rwy-val{font-size:1.4rem;font-weight:800}.rwy-hw{color:#16a34a}.rwy-xw{color:var(--ppl-accent)}.rwy-tw{color:#dc2626}.rwy-neu{color:var(--text-muted)}.rwy-sub{font-size:.75rem;color:var(--text-muted);margin-top:1px}.fpill{display:inline-block;font-size:11px;font-weight:500;background:var(--bg);color:var(--text-muted);border:.5px solid var(--border);border-radius:99px;padding:2px 10px;letter-spacing:.04em;margin-bottom:6px}.frow{display:flex;align-items:center;gap:4px;flex-wrap:wrap;padding:4px 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p{color:var(--text-muted,#7f8c9a);font-size:.9rem;margin-bottom:12px}.about-kofi img{transition:opacity .15s}.about-kofi img:hover{opacity:.85}.about-contact{margin-top:16px;font-size:.85rem;color:var(--text-muted,#7f8c9a)}.about-contact a{color:var(--primary,#2e86c1);text-decoration:none}.about-contact a:hover{text-decoration:underline}.about-principle{display:flex;align-items:flex-start;gap:12px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.about-principle-icon{font-size:1.3rem;flex-shrink:0}.about-principle strong{display:block;font-size:.85rem;margin-bottom:2px}.about-principle span{font-size:.78rem;color:var(--text-muted);line-height:1.4}@media (max-width:640px){.about-grid{grid-template-columns:1fr}.nav-about-btn{display:none}}.hero-logo{display:block;margin-bottom:16px}.hero-logo .logo-icon-bg{fill:#EBF5FB}.hero-logo .logo-text-dark{fill:#1a2b3c}.hero-logo .logo-text-muted{fill:#7F8C9A}body.dark .hero-logo .logo-icon-bg{fill:#1e2a3a}body.dark .hero-logo .logo-text-dark{fill:#e2e8f0}body.dark .hero-logo .logo-text-muted{fill:#5a6a80}.nav-logo-svg .nl-bg{fill:#EBF5FB}.nav-logo-svg .nl-dark{fill:#1a2b3c}body.dark .nav-logo-svg .nl-bg{fill:#1e2a3a}body.dark .nav-logo-svg .nl-dark{fill:#e2e8f0}.hero-banner{margin-bottom:24px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);max-height:210px}.hero-banner-img{width:100%;height:210px;object-fit:cover;object-position:0% 40%;display:block;transition:filter .3s}body.dark .hero-banner-img{filter:brightness(.78) saturate(.9)}@media (max-width:1100px) and (min-width:641px){.nav-center{gap:4px;padding-left:8px}.nav-btn{padding:8px 10px;font-size:1rem}}