:root{--bg-1:#071116;--bg-2:#071922;--card:#0f1b20;--muted:#9fb3b8;--accent:#33d6df;--accent-rgb:51,214,223;--accent-2:#7be495;--text:#eaf7f8;--glass:rgba(255, 255, 255, 0.03);--glass-hover:rgba(255, 255, 255, 0.06);--border:rgba(255, 255, 255, 0.08);--font-main:'Roboto',system-ui,-apple-system,BlinkMacSystemFont,sans-serif;--content-max:1120px;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-full:9999px;--card-shadow:0 12px 36px rgba(2, 6, 12, 0.45);--transition-fast:0.2s cubic-bezier(0.16, 1, 0.3, 1);--transition-smooth:0.3s cubic-bezier(0.16, 1, 0.3, 1)}:root[data-theme=light]{--bg-1:#f3f7f6;--bg-2:#eef6f5;--card:#ffffff;--muted:#4a5c60;--accent:#007f86;--accent-rgb:0,127,134;--accent-2:#0b9a62;--text:#072022;--glass:rgba(2, 10, 12, 0.03);--glass-hover:rgba(2, 10, 12, 0.06);--border:rgba(2, 20, 20, 0.12);--card-shadow:0 8px 24px rgba(2, 6, 12, 0.08)}*,::after,::before{box-sizing:border-box;margin:0;padding:0}body{background:linear-gradient(180deg,var(--bg-1),var(--bg-2));color:var(--text);font-family:var(--font-main);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}header{display:flex;align-items:center;justify-content:space-between;padding:12px 24px;border-bottom:1px solid var(--border);background:var(--bg-1);position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}.header-title{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--text)}.logo{width:36px;height:36px;border-radius:var(--radius-sm);background:rgba(var(--accent-rgb),.1);display:grid;place-items:center;flex-shrink:0}.logo img{width:24px;height:24px;object-fit:contain}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:8px 16px;border-radius:var(--radius-md);border:1px solid transparent;font-family:inherit;font-size:.9rem;font-weight:500;color:var(--text);text-decoration:none;cursor:pointer;transition:all var(--transition-fast);background:0 0}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.btn-ghost{background:var(--glass);border-color:var(--border)}.btn-ghost:hover{background:rgba(var(--accent-rgb),.1);border-color:rgba(var(--accent-rgb),.3);color:var(--accent)}.help-main{max-width:var(--content-max);width:100%;margin:36px auto;padding:0 20px;display:grid;grid-template-columns:280px 1fr;gap:36px;align-items:start;flex:1;position:relative}.menu-toggle-checkbox{display:none}.menu-toggle-btn{display:none;background:var(--card);border:1px solid var(--border);color:var(--text);padding:8px 14px;border-radius:var(--radius-md);font-size:1.2rem;cursor:pointer;margin-bottom:16px;width:fit-content;user-select:none}.sidebar-nav{display:flex;flex-direction:column;gap:6px;position:sticky;top:80px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:16px;box-shadow:var(--card-shadow)}.sidebar-category{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);margin:14px 0 6px 8px}.sidebar-category:first-of-type{margin-top:2px}.sidebar-item{display:flex;align-items:center;gap:10px;padding:10px 12px;color:var(--muted);text-decoration:none;border-radius:var(--radius-md);font-size:.92rem;font-weight:500;transition:all var(--transition-fast)}.sidebar-item svg{flex-shrink:0}.sidebar-item:hover{color:var(--text);background:var(--glass-hover)}.sidebar-item.active{background:rgba(var(--accent-rgb),.12);color:var(--accent);border:1px solid rgba(var(--accent-rgb),.25);font-weight:600}.sidebar-group{display:flex;flex-direction:column}.sidebar-summary{list-style:none;cursor:pointer;user-select:none}.sidebar-summary::-webkit-details-marker{display:none}.sidebar-submenu{display:flex;flex-direction:column;gap:4px;padding-left:16px;margin-top:4px;border-left:1px solid var(--border);margin-left:16px}.sidebar-subitem{font-size:.88rem;padding:8px 10px}.dropdown-divider{height:1px;background:var(--border);margin:10px 0}.help-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--card-shadow);padding:36px}.help-card h1{font-size:2rem;font-weight:800;letter-spacing:-.5px;margin-bottom:16px;color:var(--text);line-height:1.25}.help-card h2{font-size:1.35rem;font-weight:700;margin-top:32px;margin-bottom:16px;color:var(--text);letter-spacing:-.2px;border-bottom:1px solid var(--border);padding-bottom:8px}.help-card p{color:var(--text);font-size:1rem;margin-bottom:20px;line-height:1.65;opacity:.9}.help-card ul{list-style:none;margin-bottom:24px;display:flex;flex-direction:column;gap:12px}.help-card ul li{position:relative;padding-left:24px;color:var(--text);font-size:.98rem;line-height:1.6}.help-card ul li::before{content:"•";color:var(--accent);font-weight:700;font-size:1.4rem;position:absolute;left:6px;top:-2px}.help-card blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--accent)!important;background-color:var(--glass)!important;border-radius:0 var(--radius-md) var(--radius-md) 0;font-style:italic;color:var(--text);font-size:.95rem;line-height:1.6}.note-box{background:var(--glass);border:1px solid var(--border);border-left:4px solid var(--accent);border-radius:var(--radius-md);padding:14px 18px;margin-bottom:32px;font-size:.95rem;color:var(--text)}.note-box strong{color:var(--accent)}.timeline-container{position:relative;padding-left:36px;margin-top:10px}.timeline-container::before{content:'';position:absolute;top:24px;bottom:30px;left:11px;width:2px;background:linear-gradient(180deg,var(--accent) 0,rgba(var(--accent-rgb),.05) 100%)}.release-section{position:relative;margin-bottom:28px;padding:24px;background:var(--glass);border:1px solid var(--border);border-radius:var(--radius-lg);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);transition:transform var(--transition-smooth),border-color var(--transition-smooth),box-shadow var(--transition-smooth)}.release-section:hover{border-color:rgba(var(--accent-rgb),.3);transform:translateY(-2px);box-shadow:0 8px 24px rgba(2,6,12,.25)}.release-section::before{content:'';position:absolute;left:-33px;top:28px;width:12px;height:12px;border-radius:var(--radius-full);background:var(--card);border:3px solid var(--accent);box-shadow:0 0 0 4px var(--bg-1);z-index:2;transition:all var(--transition-fast)}.release-section:first-of-type::before{background:var(--accent);box-shadow:0 0 12px var(--accent),0 0 0 4px var(--bg-1);animation:pulse-glow 2.5s infinite alternate}@keyframes pulse-glow{0%{box-shadow:0 0 4px var(--accent),0 0 0 4px var(--bg-1)}100%{box-shadow:0 0 16px var(--accent),0 0 0 4px var(--bg-1)}}.release-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--border)}.release-header-title{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.version-badge{display:inline-flex;align-items:center;padding:3px 10px;background:rgba(var(--accent-rgb),.12);color:var(--accent);border:1px solid rgba(var(--accent-rgb),.3);border-radius:var(--radius-full);font-size:.78rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase}.changelog-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.changelog-list li{line-height:1.55;color:var(--text);font-size:.95rem;display:flex;align-items:flex-start;gap:10px;padding:4px 8px;border-radius:var(--radius-sm);transition:background var(--transition-fast)}.changelog-list li:hover{background:var(--glass-hover)}.tag{display:inline-flex;align-items:center;justify-content:center;padding:2px 8px;border-radius:6px;font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.5px;flex-shrink:0;margin-top:2px;border:1px solid transparent}.tag-weather{background:rgba(123,228,149,.12);color:var(--accent-2);border-color:rgba(123,228,149,.25)}.tag-metar{background:rgba(var(--accent-rgb),.12);color:var(--accent);border-color:rgba(var(--accent-rgb),.25)}.tag-system{background:var(--glass);color:var(--muted);border-color:var(--border)}.contact-form{display:flex;flex-direction:column;gap:20px;margin-top:8px}.form-group{display:flex;flex-direction:column;gap:6px}.form-group label{font-size:.88rem;font-weight:600;color:var(--text);letter-spacing:.2px}.form-group input,.form-group textarea{width:100%;padding:12px 16px;background:var(--glass);border:1px solid var(--border);border-radius:var(--radius-md);color:var(--text);font-family:inherit;font-size:.95rem;outline:0;transition:all var(--transition-fast)}.form-group input::placeholder,.form-group textarea::placeholder{color:var(--muted);opacity:.7}.form-group input:hover,.form-group textarea:hover{background:var(--glass-hover);border-color:rgba(var(--accent-rgb),.25)}.form-group input:focus,.form-group textarea:focus{background:rgba(var(--accent-rgb),.04);border-color:var(--accent);box-shadow:0 0 0 3px rgba(var(--accent-rgb),.2)}.form-group textarea{min-height:130px;resize:vertical;line-height:1.5}.status-msg{display:none;padding:14px 18px;border-radius:var(--radius-md);font-size:.92rem;font-weight:500;line-height:1.5;margin-bottom:20px;animation:statusFadeIn var(--transition-smooth)}@keyframes statusFadeIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}.status-msg.success{display:flex;align-items:center;background:rgba(123,228,149,.12);border:1px solid rgba(123,228,149,.3);color:var(--accent-2)}.status-msg.error{display:flex;align-items:center;background:rgba(255,99,132,.12);border:1px solid rgba(255,99,132,.3);color:#ff6b81}.g-recaptcha{margin:6px 0 10px 0;display:flex;justify-content:flex-start;overflow-x:auto}.btn-submit{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 24px;background:var(--accent);color:#071116;border:none;border-radius:var(--radius-md);font-family:inherit;font-size:.95rem;font-weight:700;cursor:pointer;transition:all var(--transition-fast);box-shadow:0 4px 16px rgba(var(--accent-rgb),.3);width:fit-content;align-self:flex-start}.btn-submit:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(var(--accent-rgb),.45);filter:brightness(1.08)}.btn-submit:active{transform:translateY(0);box-shadow:0 2px 8px rgba(var(--accent-rgb),.3)}.btn-submit:disabled{opacity:.6;cursor:not-allowed;transform:none!important;box-shadow:none!important;filter:none!important}.spinner{display:none;width:16px;height:16px;border:2px solid rgba(7,17,22,.25);border-top-color:#071116;border-radius:var(--radius-full);animation:spin .8s linear infinite;flex-shrink:0}.btn-submit.loading .spinner{display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}footer{margin-top:auto;padding:24px 20px;text-align:center;border-top:1px solid var(--border);background:var(--bg-1);color:var(--muted);font-size:.85rem}@media (prefers-reduced-motion:reduce){*,::after,::before{animation-duration:0s!important;animation-iteration-count:1!important;transition-duration:0s!important;scroll-behavior:auto!important}}@media (max-width:900px){.help-main{grid-template-columns:1fr;gap:16px;margin:20px auto}.menu-toggle-btn{display:block}.sidebar-nav{display:none;position:static;box-shadow:none}.menu-toggle-checkbox:checked~.sidebar-nav{display:flex}}@media (max-width:600px){header{padding:12px 16px}.header-title{font-size:.95rem}.help-card{padding:20px}.help-card h1{font-size:1.5rem}.help-card h2{font-size:1.15rem}.timeline-container{padding-left:26px}.release-section{padding:16px}.btn-submit{width:100%}}