:root{--primary: #3b82f6;--primary-dark: #2563eb;--success: #10b981;--warning: #f59e0b;--danger: #ef4444;--bg-dark: #0b1f3a;--bg-card: rgba(15, 23, 42, .75);--text-main: #f1f5f9;--text-dim: #94a3b8;--glass-border: rgba(148, 163, 184, .15);--accent-orange: #f97316;--accent-orange-dark: #ea580c;--bg-hover: rgba(255, 255, 255, .06);--bg-active: rgba(255, 255, 255, .1)}.app-bg{min-height:100vh;background:linear-gradient(180deg,var(--bg-dark) 0%,#0a1a2f 100%)}a{color:var(--accent-orange);text-decoration:none;transition:all .2s ease-in-out}a:hover{color:var(--accent-orange-dark);text-decoration:underline}.text-blue-600,.text-blue-500,.hover\:text-blue-600:hover,.hover\:text-blue-700:hover{color:var(--accent-orange)!important}*{box-sizing:border-box;margin:0;padding:0}.main-header{background:#0f172af2;border-bottom:1px solid var(--glass-border);position:relative;z-index:1000;height:auto;min-height:70px;display:flex;align-items:center;padding:10px 0;margin-bottom:40px}.header-wrapper{max-width:1100px;margin:0 auto;width:100%;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;padding:0 20px}.logo-section h1{font-size:1.4rem;margin:0;cursor:pointer;color:#fff}.logo-section h1 span{color:var(--primary)}.header-nav{display:flex;align-items:center;gap:8px}@media(min-width:1025px){.header-nav{width:100%;justify-content:space-between;margin-top:15px;padding-top:10px}.nav-dropdown-container{position:relative;flex:1;display:flex;justify-content:center}}.nav-link{display:flex;align-items:center;gap:6px;background:transparent;border:none;padding:8px 14px;font-weight:500;color:var(--text-dim);cursor:pointer;border-radius:8px;transition:.2s;font-size:.9rem;font-family:inherit;white-space:nowrap}.nav-link:hover{background:var(--bg-hover);color:var(--text-main)}.dropdown-menu{position:absolute;top:100%;left:50%;transform:translate(-50%);background:#1e293b;border:1px solid var(--glass-border);width:max-content;min-width:160px;max-width:220px;box-shadow:0 10px 25px #00000080;border-radius:12px;padding:6px;display:flex;flex-direction:column;z-index:1001;transition:opacity .2s ease}.dropdown-menu button{text-align:left;padding:10px 14px;background:transparent;border:none;color:var(--text-dim);border-radius:6px;cursor:pointer;transition:.2s;font-size:.85rem;width:100%;font-family:inherit}.dropdown-menu button:hover{background:#3b82f61a;color:var(--primary);padding-left:18px}.hamburger{display:none;background:transparent;border:none;color:#fff;cursor:pointer}@media(max-width:1024px){.header-wrapper{flex-wrap:nowrap}.hamburger{display:block}.header-nav{display:none}.header-nav.mobile-active{display:flex;flex-direction:column;align-items:center;position:absolute;top:70px;left:10px;right:10px;background:#1e293b;padding:25px;border-radius:20px;border:1px solid var(--glass-border);gap:12px;width:auto}.header-nav.mobile-active .nav-link{width:auto;justify-content:center;font-size:1.1rem}.header-nav.mobile-active .dropdown-menu{position:static;transform:none;box-shadow:none;background:#ffffff08;margin-top:5px;width:100%;align-items:center;max-width:280px}.header-nav.mobile-active .dropdown-menu button{text-align:center;padding:12px}}.main-footer{margin-top:80px;padding:40px 20px;background:#ffffff05;border-top:1px solid rgba(255,255,255,.05);border-radius:32px 32px 0 0}.footer-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:30px;max-width:1100px;margin:0 auto}.footer-col h4{color:#fff;font-size:.9rem;margin-bottom:15px;text-transform:uppercase;letter-spacing:1px}.footer-item{display:block;color:#64748b;text-decoration:none;font-size:.85rem;font:inherit;margin-bottom:8px;background:none;border:none;padding:0;cursor:pointer;transition:.2s;text-align:left}.footer-item:hover{color:#3b82f6}.footer-item.danger{color:#ef4444}.footer-item.danger:hover{color:#ff4747}.footer-socials{display:flex;gap:12px}.social-link{color:#64748b;transition:.2s}.social-link:hover{color:#fff;transform:translateY(-2px)}.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.03);text-align:center;font-size:.75rem;color:#475569}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background-color:var(--bg-dark);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;overflow-x:hidden}h1{font-size:clamp(1.8rem,6vw,2.5rem);font-weight:900;color:#fff;margin-bottom:10px;text-align:center}h2{color:var(--text-dim);font-size:clamp(1rem,3vw,1.25rem);font-weight:400;line-height:1.7;text-align:center;max-width:800px;margin:0 auto 40px;border:none}.fade-in{animation:fadeIn .6s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}section{width:100%;padding-left:1rem;padding-right:1rem}@media(max-width:768px){section{padding-top:40px!important;padding-bottom:20px!important}.grid-mobile-1col{grid-template-columns:1fr!important}}.container-max{max-width:1100px;margin:0 auto;width:100%;padding-left:20px;padding-right:20px}@media(max-width:600px){.container-max{padding-left:10px;padding-right:10px}}.smart-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:20px}.responsive-flex{display:flex;flex-wrap:wrap;gap:15px;align-items:flex-start}.responsive-flex>div{min-width:min(100%,280px)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));gap:20px}.info-box{background:#ffffff08;padding:20px;border-radius:15px;border:1px solid var(--glass-border);min-width:0;overflow-wrap:break-word}@media(min-width:1025px){.calculator-grid{display:grid;grid-template-columns:1fr minmax(320px,420px);gap:25px;align-items:start}}@media(max-width:1024px){.calculator-grid{display:flex;flex-direction:column;gap:20px}}.layout-grid{display:flex;flex-direction:column;gap:25px}@media(min-width:1025px){.layout-grid{display:grid;grid-template-columns:1fr 350px;align-items:start}}.custom-tooltip{position:relative;display:inline-block;cursor:help}.custom-tooltip .tooltip-text{visibility:hidden;width:250px;background:#0f0f0ff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;text-align:center;border-radius:12px;padding:10px 15px;border:1px solid rgba(255,255,255,.1);box-shadow:0 10px 25px #00000080;font-size:.8rem;line-height:1.4;position:absolute;z-index:1000;bottom:125%;left:50%;transform:translate(-50%);opacity:0;transition:opacity .3s}.tooltip-icon{width:14px;height:14px;opacity:.6;cursor:help;transition:.2s}.custom-tooltip:hover .tooltip-icon{opacity:1}.custom-tooltip .tooltip-text:after{content:"";position:absolute;top:100%;left:50%;margin-left:-5px;border-width:5px;border-style:solid;border-color:rgba(15,15,15,.95) transparent transparent transparent}.custom-tooltip:hover .tooltip-text{visibility:visible;opacity:1}@media(max-width:600px){.custom-tooltip .tooltip-text{width:200px;position:fixed;bottom:20px;left:50%;transform:translate(-50%)}.custom-tooltip .tooltip-text:after{display:none}}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;font-size:1rem;font-weight:600;border-radius:12px;border:none;cursor:pointer;transition:all .2s ease-in-out;box-shadow:0 4px 12px #00000026;color:var(--text-main);background:linear-gradient(135deg,#3b82f6,#2563eb)}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px #00000040;background:linear-gradient(135deg,#2563eb,#1d4ed8)}.btn:active{transform:translateY(0) scale(.97);box-shadow:0 3px 10px #00000026}.my-save-btn.btn-success{background:#10b981;color:#fff;transition:background .3s ease-in-out}.btn-success:hover{background-color:#059669}.btn-inactive{background-color:#444;color:#ccc;cursor:not-allowed;box-shadow:none;transform:none;transition:none}@media(max-width:600px){.btn{width:100%;font-size:.95rem;padding:14px 20px}}.input-accent input{accent-color:#3498db}.util-btn{background:#ffffff0d;border:1px solid rgba(255,255,255,.1);color:#fff;padding:10px 18px;border-radius:12px;cursor:pointer;display:flex;align-items:center;gap:8px;font-weight:600;font-size:.85rem;transition:.2s}.util-btn:hover{background:#ffffff1a;transform:scale(1.02)}.metric-row{display:flex;justify-content:space-between;align-items:center;padding:12px 16px;border-radius:12px;transition:.2s;background:#ffffff05;margin-bottom:8px}.glass-card{background:#ffffff08;border:1px solid rgba(255,255,255,.08);border-radius:24px;padding:24px;transition:.3s cubic-bezier(.4,0,.2,1);overflow:hidden;box-sizing:border-box}.glass-card:hover{background:#ffffff0d;border-color:#ffffff26;transform:none}@media(max-width:600px){.glass-card{padding:16px}}@media print{.util-btn,.settings-section,.simulator-section,input[type=range],.GuideModal,.no-print{display:none!important}body,.app-container{background:#fff!important;color:#000!important;margin:0;padding:0}.glass-card{background:#fff!important;color:#000!important;border:1px solid #ddd!important;box-shadow:none!important;break-inside:avoid;padding:20px}span{color:#000!important;opacity:1!important}svg{filter:invert(0)!important}}.article-container{max-width:800px;margin:0 auto;padding:0 20px;width:100%;box-sizing:border-box;display:block}.article-card{padding:40px;border-radius:24px;background:#ffffff08;border:1px solid var(--glass-border);width:auto;max-width:100%;box-sizing:border-box}.back-button{background:transparent;border:none;color:var(--primary);cursor:pointer;display:inline-flex;align-items:center;gap:8px;font-weight:600;margin-bottom:24px;padding:10px 0;font-size:1rem;transition:.2s}.back-button:hover{color:var(--text-main);transform:translate(-4px)}.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-bottom:30px;color:var(--text-dim);font-size:.9rem;padding-bottom:20px;border-bottom:1px solid var(--glass-border)}.category-badge{background:#3b82f626;color:var(--primary);padding:4px 12px;border-radius:20px;font-weight:700;text-transform:uppercase;font-size:.75rem}.article-title{font-size:clamp(1.8rem,5vw,2.2rem);margin-bottom:20px;font-weight:800;line-height:1.2;color:#fff}.article-content{font-size:1.1rem;line-height:1.8;color:var(--text-main)}.article-content p{margin-bottom:24px}.article-content h3{margin:40px 0 16px;color:#fff;font-size:1.5rem}.article-content ul{margin-bottom:24px;padding-left:20px}.article-content li{margin-bottom:10px}.article-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:25px;padding:20px 0}.list-card{cursor:pointer;padding:24px;border-radius:18px;background:#ffffff08;border:1px solid var(--glass-border);transition:.3s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column}.list-card:hover{background:#ffffff12;border-color:var(--primary);transform:translateY(-5px)}.list-card-header{display:flex;align-items:center;gap:10px;margin-bottom:15px;color:var(--primary);font-weight:600;font-size:.85rem;text-transform:uppercase}.list-title{font-size:1.3rem;margin-bottom:10px;color:#fff;line-height:1.3}.list-excerpt{color:var(--text-dim);font-size:.95rem;line-height:1.5;margin-bottom:20px}@media(max-width:600px){.article-container{padding:0;width:100%;display:block}.article-card{padding:25px 16px;margin:0 auto;width:92%;box-sizing:border-box}.article-content p{margin-bottom:20px}.article-meta{gap:10px}.article-content table{margin:0 auto;display:table}}