@import "https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap";
:root{--bg-primary:#0a0a0b;--bg-secondary:#0e0e10;--bg-tertiary:#141416;--bg-card:#0e0e10;--bg-card-hover:#141416;--bg-glass:#ffffff08;--bg-glass-hover:#ffffff0d;--accent-gold:#f5b21a;--accent-cyan:#f5b21a;--accent-blue:#f5b21a;--accent-violet:#f5b21a;--accent-pink:#e0594f;--accent-green:#4ec77f;--accent-orange:#f5b21a;--accent-red:#e0594f;--gradient-primary:linear-gradient(135deg, #f5b21a, #ffcf5a);--gradient-secondary:linear-gradient(135deg, #f5b21a, #e0594f);--gradient-success:linear-gradient(135deg, #4ec77f, #f5b21a);--gradient-card:#0e0e10;--text-primary:#f2f2f0;--text-secondary:#8a8a86;--text-muted:#5a5a57;--text-accent:var(--accent-gold);--border-subtle:#1c1c1f;--border-accent:#f5b21a66;--border-hover:#f5b21ab3;--shadow-sm:0 1px 3px #00000080;--shadow-md:0 6px 18px #0000008c;--shadow-lg:0 18px 50px #0009;--shadow-glow-cyan:0 0 0 1px #f5b21a40;--shadow-glow-violet:0 0 0 1px #f5b21a2e;--shadow-glow-green:0 0 0 1px #4ec77f38;--space-xs:.25rem;--space-sm:.5rem;--space-md:1rem;--space-lg:1.5rem;--space-xl:2rem;--space-2xl:3rem;--space-3xl:4rem;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--font-sans:"Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", ui-monospace, "SF Mono", monospace;--transition-fast:.15s cubic-bezier(.4, 0, .2, 1);--transition-base:.25s cubic-bezier(.4, 0, .2, 1);--transition-slow:.4s cubic-bezier(.4, 0, .2, 1);--transition-bounce:.5s cubic-bezier(.34, 1.56, .64, 1)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-size:16px}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}body:before{content:"";pointer-events:none;z-index:0;background:radial-gradient(1000px 520px at 50% -16%,#f5b21a0d,#0000 70%);position:fixed;inset:0}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:700;line-height:1.2}h1{letter-spacing:-.02em;font-size:3rem}h2{letter-spacing:-.01em;font-size:2.25rem}h3{font-size:1.5rem}h4{font-size:1.25rem}p{color:var(--text-secondary);line-height:1.7}a{color:var(--accent-cyan);transition:color var(--transition-fast);text-decoration:none}a:hover{color:var(--accent-blue)}code,pre{font-family:var(--font-mono)}.container{width:100%;max-width:1200px;padding:0 var(--space-lg);z-index:1;margin:0 auto;position:relative}.container-sm{max-width:720px}.container-lg{max-width:1400px}.page{min-height:100vh;padding-top:80px}.navbar{height:70px;padding:0 var(--space-xl);-webkit-backdrop-filter:blur(20px)saturate(1.2);border-bottom:1px solid var(--border-subtle);z-index:1000;transition:background var(--transition-base);background:#0a0a0bcc;justify-content:space-between;align-items:center;display:flex;position:fixed;top:0;left:0;right:0}.navbar-logo{align-items:center;gap:var(--space-sm);color:var(--text-primary);font-size:1.5rem;font-weight:800;text-decoration:none;display:flex}.navbar-logo .logo-icon{background:var(--gradient-primary);border-radius:var(--radius-sm);justify-content:center;align-items:center;width:32px;height:32px;font-size:1rem;display:flex}.navbar-logo .logo-gradient{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.navbar-links{align-items:center;gap:var(--space-lg);list-style:none;display:flex}.navbar-links a{color:var(--text-secondary);transition:color var(--transition-fast);font-size:.9rem;font-weight:500}.navbar-links a:hover{color:var(--text-primary)}.btn{justify-content:center;align-items:center;gap:var(--space-sm);font-family:var(--font-sans);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);white-space:nowrap;border:none;padding:.75rem 1.5rem;font-size:.95rem;font-weight:600;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn:after{content:"";transition:background var(--transition-fast);background:#fff0;position:absolute;inset:0}.btn:hover:after{background:#ffffff0d}.btn:active{transform:scale(.97)}.btn-primary{background:var(--gradient-primary);color:#fff;box-shadow:var(--shadow-glow-cyan)}.btn-primary:hover{box-shadow:var(--shadow-glow-cyan), 0 0 40px #f5b21a33;transform:translateY(-1px)}.btn-secondary{background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-subtle);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.btn-secondary:hover{border-color:var(--border-accent);background:var(--bg-card-hover)}.btn-ghost{color:var(--text-secondary);background:0 0}.btn-ghost:hover{color:var(--text-primary);background:var(--bg-glass)}.btn-danger{background:linear-gradient(135deg, var(--accent-red), #d50000);color:#fff}.btn-success{background:var(--gradient-success);color:#fff;box-shadow:var(--shadow-glow-green)}.btn-sm{padding:.5rem 1rem;font-size:.85rem}.btn-lg{border-radius:var(--radius-lg);padding:1rem 2rem;font-size:1.1rem}.btn-icon{border-radius:var(--radius-md);width:40px;height:40px;padding:0}.card{background:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);transition:all var(--transition-base)}.card:hover{border-color:var(--border-accent);box-shadow:var(--shadow-glow-cyan);transform:translateY(-2px)}.card-glass{background:var(--bg-glass);-webkit-backdrop-filter:blur(20px)saturate(1.4);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:var(--space-xl)}.card-featured{border-color:var(--accent-cyan);box-shadow:var(--shadow-glow-cyan);position:relative}.card-featured:before{content:"";background:var(--gradient-primary);border-radius:0 0 4px 4px;height:2px;position:absolute;top:0;left:20%;right:20%}.input-group{gap:var(--space-xs);flex-direction:column;display:flex}.input-label{color:var(--text-secondary);font-size:.85rem;font-weight:500}.input{font-family:var(--font-sans);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-primary);transition:all var(--transition-fast);outline:none;padding:.75rem 1rem;font-size:1rem}.input:focus{border-color:var(--accent-cyan);box-shadow:0 0 0 3px #f5b21a1a}.input::placeholder{color:var(--text-muted)}.input-lg{border-radius:var(--radius-lg);padding:1rem 1.25rem;font-size:1.25rem}.input-mono{font-family:var(--font-mono);letter-spacing:.02em;font-size:.9rem}.stat-card{gap:var(--space-xs);padding:var(--space-lg);background:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);flex-direction:column;display:flex}.stat-label{color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-size:.8rem;font-weight:500}.stat-value{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:2rem;font-weight:800}.stat-change{font-size:.8rem;font-weight:500}.stat-change.positive{color:var(--accent-green)}.stat-change.negative{color:var(--accent-red)}.table-wrapper{border:1px solid var(--border-subtle);border-radius:var(--radius-lg);background:var(--gradient-card);overflow-x:auto}table{border-collapse:collapse;width:100%}thead th{padding:var(--space-md) var(--space-lg);text-align:left;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-subtle);background:var(--bg-secondary);font-size:.8rem;font-weight:600}tbody td{padding:var(--space-md) var(--space-lg);color:var(--text-secondary);border-bottom:1px solid var(--border-subtle);font-size:.9rem}tbody tr:last-child td{border-bottom:none}tbody tr{transition:background var(--transition-fast)}tbody tr:hover{background:var(--bg-glass-hover)}.badge{border-radius:var(--radius-full);white-space:nowrap;align-items:center;padding:.25rem .65rem;font-size:.75rem;font-weight:600;display:inline-flex}.badge-active{color:var(--accent-green);background:#00e6761f;border:1px solid #00e67633}.badge-pending{color:var(--accent-orange);background:#ff91001f;border:1px solid #ff910033}.badge-expired{color:var(--accent-red);background:#ff17441f;border:1px solid #ff174433}.badge-info{color:var(--accent-cyan);background:#f5b21a1f;border:1px solid #f5b21a33}.pricing-grid{gap:var(--space-xl);grid-template-columns:repeat(auto-fit,minmax(320px,1fr));display:grid}.pricing-amount{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:3rem;font-weight:900}.pricing-amount .currency{font-size:1.5rem;font-weight:600}.pricing-amount .period{color:var(--text-muted);-webkit-text-fill-color:var(--text-muted);font-size:1rem;font-weight:400}.hero{padding:var(--space-3xl) 0;text-align:center;position:relative}.hero h1{margin-bottom:var(--space-lg);font-size:clamp(2.5rem,6vw,4.5rem);font-weight:900;line-height:1.1}.hero .gradient-text{background:var(--gradient-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.hero p{max-width:600px;margin:0 auto var(--space-2xl);font-size:1.2rem}.hero-orb{filter:blur(80px);opacity:.3;pointer-events:none;border-radius:50%;animation:8s ease-in-out infinite float;position:absolute}.hero-orb-1{background:var(--accent-cyan);width:300px;height:300px;animation-delay:0s;top:10%;left:15%}.hero-orb-2{background:var(--accent-violet);width:250px;height:250px;animation-delay:-3s;top:30%;right:10%}.hero-orb-3{background:var(--accent-blue);width:200px;height:200px;animation-delay:-5s;bottom:10%;left:40%}.code-block{background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);padding:var(--space-lg);font-family:var(--font-mono);color:var(--text-secondary);font-size:.85rem;position:relative;overflow-x:auto}.code-block .copy-btn{top:var(--space-sm);right:var(--space-sm);background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-sm);color:var(--text-muted);cursor:pointer;transition:all var(--transition-fast);padding:.35rem .75rem;font-size:.75rem;position:absolute}.code-block .copy-btn:hover{color:var(--accent-cyan);border-color:var(--border-accent)}.key-display{align-items:center;gap:var(--space-md);padding:var(--space-lg);background:var(--bg-tertiary);border:1px solid var(--accent-cyan);border-radius:var(--radius-lg);font-family:var(--font-mono);color:var(--accent-cyan);box-shadow:var(--shadow-glow-cyan);word-break:break-all;font-size:1.1rem;display:flex}.section{padding:var(--space-3xl) 0}.section-header{text-align:center;margin-bottom:var(--space-2xl)}.section-header h2{margin-bottom:var(--space-sm)}.section-header p{max-width:500px;margin:0 auto}.footer{padding:var(--space-2xl) 0;border-top:1px solid var(--border-subtle);text-align:center;color:var(--text-muted);font-size:.85rem}.spinner{border:3px solid var(--border-subtle);border-top-color:var(--accent-cyan);border-radius:50%;width:24px;height:24px;animation:.7s linear infinite spin}.spinner-lg{border-width:4px;width:48px;height:48px}.payment-status{align-items:center;gap:var(--space-lg);padding:var(--space-2xl);flex-direction:column;display:flex}.payment-qr{padding:var(--space-lg);border-radius:var(--radius-lg);background:#fff}.payment-address{font-family:var(--font-mono);padding:var(--space-md);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);word-break:break-all;text-align:center;color:var(--text-secondary);font-size:.85rem}.admin-layout{min-height:100vh;padding-top:70px;display:flex}.admin-sidebar{background:var(--bg-secondary);border-right:1px solid var(--border-subtle);width:250px;padding:var(--space-xl) 0;position:fixed;top:70px;bottom:0;overflow-y:auto}.admin-sidebar-link{align-items:center;gap:var(--space-md);padding:var(--space-md) var(--space-xl);color:var(--text-secondary);transition:all var(--transition-fast);border-left:3px solid #0000;font-size:.9rem;font-weight:500;display:flex}.admin-sidebar-link:hover{color:var(--text-primary);background:var(--bg-glass)}.admin-sidebar-link.active{color:var(--accent-cyan);border-left-color:var(--accent-cyan);background:#f5b21a0d}.admin-content{padding:var(--space-2xl);flex:1;margin-left:250px}.grid-2{gap:var(--space-lg);grid-template-columns:repeat(2,1fr);display:grid}.grid-3{gap:var(--space-lg);grid-template-columns:repeat(3,1fr);display:grid}.grid-4{gap:var(--space-lg);grid-template-columns:repeat(4,1fr);display:grid}.flex{display:flex}.flex-col{flex-direction:column}.flex-center{justify-content:center;align-items:center}.flex-between{justify-content:space-between;align-items:center}.gap-sm{gap:var(--space-sm)}.gap-md{gap:var(--space-md)}.gap-lg{gap:var(--space-lg)}.gap-xl{gap:var(--space-xl)}.mt-sm{margin-top:var(--space-sm)}.mt-md{margin-top:var(--space-md)}.mt-lg{margin-top:var(--space-lg)}.mt-xl{margin-top:var(--space-xl)}.mb-md{margin-bottom:var(--space-md)}.mb-lg{margin-bottom:var(--space-lg)}.text-center{text-align:center}.text-muted{color:var(--text-muted)}.text-accent{color:var(--accent-cyan)}.text-mono{font-family:var(--font-mono)}.text-sm{font-size:.85rem}.text-lg{font-size:1.2rem}.font-bold{font-weight:700}@keyframes float{0%,to{transform:translateY(0)rotate(0)}33%{transform:translateY(-20px)rotate(2deg)}66%{transform:translateY(10px)rotate(-1deg)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideUp{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-fade-in{animation:.5s ease-out forwards fadeIn}.animate-slide-up{animation:.6s ease-out forwards slideUp}.animate-pulse{animation:2s ease-in-out infinite pulse}.stagger-1{opacity:0;animation-delay:.1s}.stagger-2{opacity:0;animation-delay:.2s}.stagger-3{opacity:0;animation-delay:.3s}.stagger-4{opacity:0;animation-delay:.4s}@media (max-width:768px){h1{font-size:2rem}h2{font-size:1.75rem}.container{padding:0 var(--space-md)}.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}.navbar{padding:0 var(--space-md)}.navbar-links,.admin-sidebar{display:none}.admin-content{margin-left:0}.hero h1{font-size:2.2rem}.pricing-amount{font-size:2rem}}@media (max-width:480px){.btn-lg{padding:.75rem 1.5rem;font-size:1rem}.hero{padding:var(--space-2xl) 0}}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-subtle);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}::selection{color:var(--text-primary);background:#f5b21a40}.items-center{align-items:center}.justify-between{justify-content:space-between}.justify-center{justify-content:center}.flex-wrap{flex-wrap:wrap}.flex-1{flex:1}.w-full{width:100%}.gap-xs{gap:var(--space-xs)}.gap-2xl{gap:var(--space-2xl)}.mt-xs{margin-top:var(--space-xs)}.mt-2xl{margin-top:var(--space-2xl)}.mb-xs{margin-bottom:var(--space-xs)}.mb-sm{margin-bottom:var(--space-sm)}.mb-xl{margin-bottom:var(--space-xl)}.mb-2xl{margin-bottom:var(--space-2xl)}.text-secondary{color:var(--text-secondary)}.text-green{color:var(--accent-green)}.text-red{color:var(--accent-red)}.text-xs{font-size:.75rem}.font-mono{font-family:var(--font-mono)}.font-semibold{font-weight:600}.uppercase{text-transform:uppercase;letter-spacing:.05em}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.hide-mobile{display:initial}.show-mobile{display:none}.navbar-toggle{background:var(--bg-glass);border:1px 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var(--border-subtle);border-radius:var(--radius-full);transition:var(--transition-base);position:absolute;inset:0}.switch .slider:before{content:"";background:var(--text-muted);width:16px;height:16px;transition:var(--transition-base);border-radius:50%;position:absolute;top:50%;left:3px;transform:translateY(-50%)}.switch input:checked+.slider{border-color:var(--accent-green);background:#00e67633}.switch input:checked+.slider:before{background:var(--accent-green);transform:translate(20px,-50%)}.searchbar{align-items:center;gap:var(--space-sm);background:var(--bg-tertiary);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:all var(--transition-fast);padding:.6rem 1rem;display:flex}.searchbar:focus-within{border-color:var(--accent-cyan);box-shadow:0 0 0 3px #f5b21a1a}.searchbar input{color:var(--text-primary);font-size:.9rem;font-family:var(--font-sans);background:0 0;border:none;outline:none;flex:1}.searchbar input::placeholder{color:var(--text-muted)}.panel{background:var(--gradient-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);overflow:hidden}.panel-header{padding:var(--space-lg) var(--space-xl);border-bottom:1px solid var(--border-subtle);justify-content:space-between;align-items:center;gap:var(--space-md);flex-wrap:wrap;display:flex}.panel-header h3{margin:0}.panel-body{padding:var(--space-xl)}.input-compact{width:110px;padding:.4rem .6rem;font-size:.85rem}.admin-sidebar-header{align-items:center;gap:var(--space-sm);padding:0 var(--space-xl) var(--space-lg);margin-bottom:var(--space-sm);border-bottom:1px solid var(--border-subtle);display:flex}.admin-sidebar-brand{font-size:1.1rem;font-weight:800}.admin-sidebar-spacer{flex:1}.admin-sidebar-footer{padding:var(--space-md) var(--space-lg);border-top:1px solid var(--border-subtle);margin-top:auto}.admin-sidebar{flex-direction:column;display:flex}.admin-logout{align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-md);background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-md);color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);font-size:.9rem;font-weight:500;display:flex}.admin-logout:hover{color:var(--accent-red);background:#ff17440f;border-color:#ff17444d}.admin-topbar{z-index:800;align-items:center;gap:var(--space-md);height:56px;padding:0 var(--space-md);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-bottom:1px solid var(--border-subtle);background:#080a10e6;display:none;position:fixed;top:70px;left:0;right:0}.admin-menu-btn{background:var(--bg-glass);border:1px solid var(--border-subtle);border-radius:var(--radius-md);width:40px;height:40px;color:var(--text-primary);cursor:pointer;justify-content:center;align-items:center;display:inline-flex}.admin-backdrop{z-index:850;opacity:0;pointer-events:none;transition:opacity var(--transition-base);background:#00000080;display:none;position:fixed;inset:70px 0 0}.admin-backdrop.open{opacity:1;pointer-events:auto}.admin-page-title{margin-bottom:var(--space-xl)}.admin-page-title h2{margin:0}.admin-page-title p{margin-top:var(--space-xs);font-size:.9rem}@media (max-width:768px){.navbar-links{display:none}.navbar-toggle{display:inline-flex}.hide-mobile{display:none}.show-mobile{display:initial}.admin-layout{padding-top:126px}.admin-topbar{display:flex}.admin-sidebar{transition:transform var(--transition-base);z-index:900;box-shadow:var(--shadow-lg);display:flex;top:70px;transform:translate(-100%)}.admin-sidebar.open{transform:translate(0)}.admin-content{padding:var(--space-lg) 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var(--border-subtle);-webkit-overflow-scrolling:touch;scrollbar-width:none;gap:0;margin-bottom:4px;display:flex;overflow-x:auto}.kf-tabs::-webkit-scrollbar{display:none}.kf-tab{cursor:pointer;font-family:var(--font-sans);color:var(--text-secondary);white-space:nowrap;background:0 0;border:none;border-bottom:2px solid #0000;align-items:center;gap:8px;margin-bottom:-1px;margin-right:26px;padding:14px 0;font-size:14px;font-weight:500;transition:color .15s;display:inline-flex}.kf-tab:last-child{margin-right:0}.kf-tab:hover{color:var(--text-primary)}.kf-tab.active{color:var(--accent-gold);border-bottom-color:var(--accent-gold)}.kf-tab-n{font-family:var(--font-mono);color:var(--text-muted);background:var(--bg-tertiary);border-radius:10px;padding:1px 7px;font-size:11px;line-height:1.5}.kf-tab.active .kf-tab-n{color:var(--accent-gold)}.kf-live{align-items:center;gap:8px;display:inline-flex}.kf-live:before{content:"";background:var(--accent-green);border-radius:50%;width:7px;height:7px;box-shadow:0 0 0 3px #4ec77f29}@media (max-width:760px){.kf-wrap{padding:0 18px}.kf-hero{padding:100px 0 52px}.kf-hero h1{max-width:none}.kf-sub{font-size:16px}.kf-stats{gap:28px 36px;margin-top:48px}.kf-stat .n{font-size:24px}.kf-board-head{gap:6px}.kf-tab{margin-right:20px;font-size:13px}.kf-cta-band{margin-top:72px;padding:56px 0}}.legal-doc{color:var(--text-secondary);font-size:.97rem;line-height:1.75}.legal-doc h3{color:var(--text-primary);margin:var(--space-2xl) 0 var(--space-sm);font-size:1.15rem}.legal-doc p{margin-bottom:var(--space-md)}.legal-doc ul{margin:0 0 var(--space-md) 1.2rem;flex-direction:column;gap:.4rem;display:flex}.legal-doc li{padding-left:.25rem}.legal-doc strong{color:var(--text-primary)}.legal-doc a{color:var(--accent-gold);text-underline-offset:2px;text-decoration:underline}.legal-doc code{font-family:var(--font-mono);color:var(--accent-gold);background:var(--bg-tertiary);border-radius:var(--radius-sm);padding:.1em .4em;font-size:.85em}.legal-note{margin-top:var(--space-2xl);padding:var(--space-md) var(--space-lg);border:1px solid var(--border-subtle);border-left:3px solid var(--accent-gold);border-radius:var(--radius-md);background:var(--bg-card);color:var(--text-muted);font-size:.88rem}.lang-switcher{border:1px solid var(--border-subtle);border-radius:var(--radius-full);background:var(--bg-tertiary);gap:2px;padding:2px;display:inline-flex}.lang-opt{cursor:pointer;font-family:var(--font-mono);letter-spacing:.04em;color:var(--text-muted);border-radius:var(--radius-full);background:0 0;border:none;padding:4px 9px;font-size:11px;font-weight:600;transition:color .15s,background .15s}.lang-opt:hover{color:var(--text-primary)}.lang-opt.active{color:var(--bg-primary);background:var(--accent-gold)}.kf-features-section{margin-top:64px}.kf-features-head{text-align:center;margin-bottom:40px}.kf-features-head h2{letter-spacing:-.02em;font-size:2rem}.kf-features-head p{color:var(--text-secondary);margin-top:10px}.kf-features{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;display:grid}.kf-feat{background:var(--bg-card);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);padding:24px;transition:border-color .15s,transform .15s}.kf-feat:hover{border-color:var(--border-accent);transform:translateY(-2px)}.kf-feat-ic{border-radius:var(--radius-md);width:44px;height:44px;color:var(--accent-gold);background:#f5b21a1a;justify-content:center;align-items:center;margin-bottom:16px;display:inline-flex}.kf-feat h3{margin-bottom:8px;font-size:1.05rem}.kf-feat p{color:var(--text-secondary);font-size:.92rem;line-height:1.6}@media 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