:root{--bg-primary:#0a0e17;--bg-secondary:#111827;--bg-card:#161f30;--bg-card-hover:#1c283e;--border-color:#223049;--text-primary:#f3f4f6;--text-secondary:#9ca3af;--text-muted:#6b7280;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-light:rgba(37,99,235,0.15);--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--bsod-win10:#0078d7;--bsod-win11:#0067b8;--bsod-win11-black:#000000;--bsod-win7:#000082;--bsod-gsod:#0f6c38;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--shadow-sm:0 2px 8px rgba(0,0,0,0.25);--shadow-md:0 8px 24px rgba(0,0,0,0.35);--shadow-lg:0 16px 40px rgba(0,0,0,0.5);--transition:all 0.25s cubic-bezier(0.4,0,0.2,1);--font-sans:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;--font-heading:'Outfit',sans-serif;--font-mono:'Courier New',Courier,monospace}
[data-theme="light"]{--bg-primary:#f8fafc;--bg-secondary:#ffffff;--bg-card:#ffffff;--bg-card-hover:#f1f5f9;--border-color:#e2e8f0;--text-primary:#0f172a;--text-secondary:#475569;--text-muted:#94a3b8;--accent:#2563eb;--accent-hover:#1d4ed8;--accent-light:rgba(37,99,235,0.08);--shadow-sm:0 2px 8px rgba(0,0,0,0.06);--shadow-md:0 8px 24px rgba(0,0,0,0.08);--shadow-lg:0 16px 40px rgba(0,0,0,0.12)}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;overflow-x:hidden;min-height:100vh;display:flex;flex-direction:column}
a{color:inherit;text-decoration:none;transition:var(--transition)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none}
img{max-width:100%;height:auto;display:block}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;z-index:100;background:rgba(10,14,23,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color)}
[data-theme="light"] .header{background:rgba(255,255,255,0.88)}
.nav-wrapper{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-weight:700;font-size:1.25rem;color:var(--text-primary)}
.brand-icon{width:36px;height:36px;background:linear-gradient(135deg,#0078d7,#2563eb);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:#fff;font-weight:800;font-size:1.1rem;box-shadow:0 0 16px rgba(37,99,235,0.4)}
.brand-highlight{color:#38bdf8}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none}
.nav-item{position:relative}
.nav-link{display:flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--radius-sm);font-size:0.925rem;font-weight:500;color:var(--text-secondary);cursor:pointer;transition:var(--transition)}
.nav-link:hover,.nav-link:focus{color:var(--text-primary);background:var(--accent-light)}
.nav-link svg.arrow{transition:transform 0.2s ease}
.nav-item:hover .nav-link svg.arrow,.nav-item:focus-within .nav-link svg.arrow{transform:rotate(180deg)}
.dropdown-menu{position:absolute;top:100%;left:0;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:16px;min-width:320px;opacity:0;visibility:hidden;transform:translateY(6px);transition:all 0.2s cubic-bezier(0.16,1,0.3,1);z-index:110}
.dropdown-mega{min-width:680px;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;right:0;left:auto}
.nav-item:hover .dropdown-menu,.nav-item:focus-within .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-group-title{font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.06em;color:var(--accent);margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--border-color)}
.dropdown-list{list-style:none;display:flex;flex-direction:column;gap:6px}
.dropdown-link{display:flex;align-items:center;gap:10px;padding:8px 10px;border-radius:var(--radius-sm);font-size:0.875rem;color:var(--text-secondary);transition:var(--transition)}
.dropdown-link:hover{color:var(--text-primary);background:var(--accent-light);transform:translateX(4px)}
.dropdown-link svg{width:16px;height:16px;flex-shrink:0;color:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:12px}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--border-color);color:var(--text-secondary);background:var(--bg-secondary);transition:var(--transition)}
.theme-toggle:hover{color:var(--text-primary);border-color:var(--accent)}
.theme-toggle svg{width:20px;height:20px}
.theme-toggle .icon-sun{display:none}
[data-theme="light"] .theme-toggle .icon-sun{display:block}
[data-theme="light"] .theme-toggle .icon-moon{display:none}
.mobile-menu-btn{display:none;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--radius-sm);border:1px solid var(--border-color);color:var(--text-secondary);background:var(--bg-secondary)}
.mobile-menu-btn svg{width:22px;height:22px}
.breadcrumb-nav{padding:14px 0;font-size:0.85rem;color:var(--text-muted);border-bottom:1px solid var(--border-color);background:var(--bg-secondary)}
.breadcrumb-list{display:flex;align-items:center;gap:8px;list-style:none;flex-wrap:wrap}
.breadcrumb-item{display:flex;align-items:center;gap:8px}
.breadcrumb-item a{color:var(--text-secondary)}
.breadcrumb-item a:hover{color:var(--accent)}
.breadcrumb-item.active{color:var(--accent);font-weight:600}
.breadcrumb-separator{color:var(--text-muted);font-size:0.75rem}
.hero-section{padding:54px 0 36px;text-align:center;position:relative}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--accent-light);border:1px solid rgba(37,99,235,0.3);color:#60a5fa;font-size:0.825rem;font-weight:600;margin-bottom:18px}
[data-theme="light"] .hero-badge{color:var(--accent)}
.hero-title{font-family:var(--font-heading);font-size:2.8rem;line-height:1.15;font-weight:800;color:var(--text-primary);margin-bottom:16px;letter-spacing:-0.02em}
.hero-title .text-gradient{background:linear-gradient(135deg,#38bdf8,#2563eb);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-desc{max-width:760px;margin:0 auto 28px;font-size:1.1rem;color:var(--text-secondary);line-height:1.6}
.hero-stats{display:flex;justify-content:center;gap:36px;flex-wrap:wrap;margin-bottom:10px}
.stat-item{display:flex;flex-direction:column;align-items:center}
.stat-number{font-family:var(--font-heading);font-size:1.4rem;font-weight:700;color:var(--text-primary)}
.stat-label{font-size:0.8rem;color:var(--text-muted)}
.generator-section{padding:20px 0 60px}
.generator-grid{display:grid;grid-template-columns:1fr 1.25fr;gap:28px;align-items:start}
.tool-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);overflow:hidden}
.card-header{padding:20px 24px;border-bottom:1px solid var(--border-color);display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,0.01)}
.card-title{font-family:var(--font-heading);font-size:1.25rem;font-weight:700;display:flex;align-items:center;gap:10px;color:var(--text-primary)}
.card-title svg{width:22px;height:22px;color:var(--accent)}
.card-body{padding:24px}
.form-group{margin-bottom:18px}
.form-label{display:flex;justify-content:space-between;align-items:center;font-size:0.875rem;font-weight:600;color:var(--text-secondary);margin-bottom:8px}
.form-label span.req{color:var(--danger)}
.form-hint{font-size:0.75rem;color:var(--text-muted);font-weight:400}
.form-control{width:100%;padding:11px 14px;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:0.925rem;transition:var(--transition)}
.form-control:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,0.2)}
.form-control.is-invalid{border-color:var(--danger);box-shadow:0 0 0 3px rgba(239,68,68,0.15)}
.form-control.is-valid{border-color:var(--success)}
.invalid-feedback{color:var(--danger);font-size:0.75rem;margin-top:4px;display:none}
.is-invalid + .invalid-feedback{display:block}
.preset-buttons{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}
.preset-btn{padding:8px 10px;border-radius:var(--radius-sm);font-size:0.8rem;font-weight:600;background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);text-align:center;transition:var(--transition);display:flex;flex-direction:column;gap:3px;align-items:center}
.preset-btn:hover{border-color:var(--accent);color:var(--text-primary)}
.preset-btn.active{background:var(--accent-light);border-color:var(--accent);color:var(--text-primary);box-shadow:0 0 0 2px rgba(37,99,235,0.2)}
.preset-color{width:10px;height:10px;border-radius:50%;display:inline-block}
.range-container{display:flex;align-items:center;gap:14px}
.range-container input[type="range"]{flex:1;accent-color:var(--accent);height:6px;border-radius:3px;background:var(--border-color)}
.range-value{min-width:48px;padding:4px 8px;border-radius:var(--radius-sm);background:var(--bg-secondary);border:1px solid var(--border-color);text-align:center;font-weight:600;font-size:0.85rem}
.checkbox-label{display:flex;align-items:center;gap:10px;cursor:pointer;font-size:0.875rem;color:var(--text-secondary);user-select:none}
.checkbox-label input[type="checkbox"]{accent-color:var(--accent);width:16px;height:16px}
.form-actions{display:grid;grid-template-columns:1.5fr 1fr;gap:12px;margin-top:24px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:0.925rem;transition:var(--transition);cursor:pointer;text-align:center}
.btn-primary{background:var(--accent);color:#ffffff;box-shadow:0 4px 14px rgba(37,99,235,0.35)}
.btn-primary:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 6px 20px rgba(37,99,235,0.45)}
.btn-primary:disabled{opacity:0.65;cursor:not-allowed;transform:none}
.btn-secondary{background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary)}
.btn-secondary:hover{color:var(--text-primary);border-color:var(--text-muted);background:var(--bg-card-hover)}
.btn-danger{background:rgba(239,68,68,0.1);border:1px solid rgba(239,68,68,0.3);color:var(--danger)}
.btn-danger:hover{background:var(--danger);color:#fff}
.output-actions{display:flex;gap:8px;flex-wrap:wrap}
.output-btn{padding:7px 12px;border-radius:var(--radius-sm);font-size:0.825rem;font-weight:600;background:var(--bg-secondary);border:1px solid var(--border-color);color:var(--text-secondary);display:inline-flex;align-items:center;gap:6px;transition:var(--transition)}
.output-btn:hover{color:var(--text-primary);border-color:var(--accent)}
.output-btn svg{width:15px;height:15px}
.bsod-preview-wrapper{position:relative;background:#000;border-radius:var(--radius-md);overflow:hidden;box-shadow:var(--shadow-md);min-height:480px;display:flex;align-items:stretch}
.bsod-screen{width:100%;min-height:480px;padding:48px 40px;color:#ffffff;display:flex;flex-direction:column;justify-content:center;position:relative;user-select:none;font-family:Segoe UI,var(--font-sans);transition:background-color 0.3s ease}
.bsod-screen.theme-win11{background-color:var(--bsod-win11-black)}
.bsod-screen.theme-win10{background-color:var(--bsod-win10)}
.bsod-screen.theme-win7{background-color:var(--bsod-win7);font-family:var(--font-mono)}
.bsod-screen.theme-gsod{background-color:var(--bsod-gsod)}
.bsod-sad-face{font-size:6.5rem;line-height:1;margin-bottom:24px;font-weight:300}
.bsod-main-message{font-size:1.6rem;font-weight:300;line-height:1.35;margin-bottom:28px;max-width:920px}
.bsod-progress-line{font-size:1.35rem;font-weight:300;margin-bottom:34px}
.bsod-bottom-info{display:flex;align-items:flex-start;gap:24px;margin-top:auto}
.bsod-qr-box{width:110px;height:110px;background:#fff;padding:6px;border-radius:4px;flex-shrink:0;display:flex;align-items:center;justify-content:center}
.bsod-qr-box canvas,.bsod-qr-box img{width:100%;height:100%;object-fit:contain}
.bsod-tech-details{font-size:0.925rem;line-height:1.6;font-weight:400;color:rgba(255,255,255,0.9)}
.bsod-stop-code-badge{font-weight:600;letter-spacing:0.04em}
.bsod-failed-badge{font-weight:600}
.bsod-win7-text{font-size:0.875rem;line-height:1.55;letter-spacing:0.02em;white-space:pre-wrap;color:#ffffff}
.fullscreen-overlay{display:none;position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:999999;cursor:default;overflow:hidden}
.fullscreen-overlay.active{display:flex}
.fullscreen-overlay .bsod-screen{min-height:100vh;padding:80px 100px}
.fullscreen-exit-hint{position:fixed;bottom:16px;right:16px;background:rgba(0,0,0,0.7);color:#fff;padding:6px 12px;border-radius:4px;font-size:0.75rem;opacity:0.3;transition:opacity 0.3s ease;pointer-events:none}
.fullscreen-overlay:hover .fullscreen-exit-hint{opacity:0.9}
.more-tools-section{padding:50px 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.section-header{text-align:center;margin-bottom:36px}
.section-subtitle{font-size:0.8rem;font-weight:700;text-transform:uppercase;letter-spacing:0.08em;color:var(--accent);margin-bottom:8px}
.section-title{font-family:var(--font-heading);font-size:2rem;font-weight:700;color:var(--text-primary)}
.section-desc{color:var(--text-secondary);max-width:650px;margin:8px auto 0;font-size:0.95rem}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:14px}
.tool-tile{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:14px 16px;display:flex;align-items:center;gap:12px;transition:var(--transition);color:var(--text-secondary);font-size:0.875rem;font-weight:500}
.tool-tile:hover{transform:translateY(-2px);border-color:var(--accent);color:var(--text-primary);box-shadow:var(--shadow-sm);background:var(--bg-card-hover)}
.tool-tile-icon{width:32px;height:32px;border-radius:var(--radius-sm);background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.tool-tile-icon svg{width:16px;height:16px}
.features-section{padding:60px 0}
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:28px;transition:var(--transition)}
.feature-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-md)}
.feature-icon-wrapper{width:48px;height:48px;border-radius:var(--radius-md);background:var(--accent-light);color:var(--accent);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.feature-icon-wrapper svg{width:24px;height:24px}
.feature-title{font-family:var(--font-heading);font-size:1.15rem;font-weight:700;color:var(--text-primary);margin-bottom:10px}
.feature-text{font-size:0.9rem;color:var(--text-secondary);line-height:1.6}
.how-it-works-section{padding:60px 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);padding:24px;position:relative}
.step-number{font-family:var(--font-heading);font-size:2.2rem;font-weight:800;color:var(--accent);line-height:1;margin-bottom:12px;opacity:0.8}
.step-title{font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--text-primary);margin-bottom:8px}
.step-desc{font-size:0.875rem;color:var(--text-secondary);line-height:1.55}
.seo-article-section{padding:60px 0}
.seo-article-card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow-sm)}
.seo-article-header{margin-bottom:20px;border-bottom:1px solid var(--border-color);padding-bottom:16px}
.seo-article-header h2{font-family:var(--font-heading);font-size:1.6rem;font-weight:700;color:var(--text-primary)}
.seo-article-body{color:var(--text-secondary);font-size:0.95rem;line-height:1.75}
.seo-article-body p{margin-bottom:16px}
.seo-article-body p:last-child{margin-bottom:0}
.seo-article-body strong{color:var(--text-primary)}
.faq-section{padding:60px 0;background:var(--bg-secondary);border-top:1px solid var(--border-color);border-bottom:1px solid var(--border-color)}
.faq-list{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:hidden;transition:var(--transition)}
.faq-question{width:100%;padding:18px 22px;text-align:left;display:flex;align-items:center;justify-content:space-between;gap:16px;font-family:var(--font-heading);font-size:1.05rem;font-weight:600;color:var(--text-primary)}
.faq-question:hover{color:var(--accent)}
.faq-icon{width:20px;height:20px;color:var(--accent);transition:transform 0.25s ease;flex-shrink:0}
.faq-item.active .faq-icon{transform:rotate(180deg)}
.faq-answer{padding:0 22px 20px;color:var(--text-secondary);font-size:0.925rem;line-height:1.65;display:none}
.faq-item.active .faq-answer{display:block}
.cta-section{padding:70px 0;text-align:center;background:linear-gradient(180deg,var(--bg-primary) 0%,rgba(37,99,235,0.06) 100%)}
.cta-box{max-width:760px;margin:0 auto;padding:48px 32px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.cta-title{font-family:var(--font-heading);font-size:2.2rem;font-weight:800;color:var(--text-primary);margin-bottom:14px}
.cta-desc{color:var(--text-secondary);font-size:1rem;margin-bottom:28px;line-height:1.6}
.cta-buttons{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.footer{background:var(--bg-secondary);border-top:1px solid var(--border-color);padding:60px 0 24px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;margin-bottom:44px}
.footer-brand{display:flex;flex-direction:column;gap:14px}
.footer-desc{color:var(--text-secondary);font-size:0.875rem;line-height:1.6}
.footer-title{font-family:var(--font-heading);font-size:0.95rem;font-weight:700;color:var(--text-primary);margin-bottom:16px;text-transform:uppercase;letter-spacing:0.04em}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-link{color:var(--text-secondary);font-size:0.85rem;transition:var(--transition);display:inline-flex;align-items:center;gap:6px}
.footer-link:hover{color:var(--accent);transform:translateX(3px)}
.footer-disclaimer-box{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-sm);padding:14px 18px;margin-bottom:28px;font-size:0.8rem;color:var(--text-muted);line-height:1.55}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:20px;border-top:1px solid var(--border-color);font-size:0.825rem;color:var(--text-muted);flex-wrap:wrap;gap:14px}
.footer-legal-links{display:flex;gap:18px}
.footer-legal-links a:hover{color:var(--text-primary)}
.cookie-banner{position:fixed;bottom:20px;left:20px;right:20px;max-width:540px;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-md);box-shadow:var(--shadow-lg);padding:18px 22px;z-index:9999;display:flex;flex-direction:column;gap:12px;transform:translateY(120%);transition:transform 0.3s cubic-bezier(0.16,1,0.3,1)}
.cookie-banner.active{transform:translateY(0)}
.cookie-text{font-size:0.85rem;color:var(--text-secondary);line-height:1.5}
.cookie-text a{color:var(--accent);text-decoration:underline}
.cookie-actions{display:flex;gap:10px;justify-content:flex-end}
.cookie-btn{padding:7px 16px;border-radius:var(--radius-sm);font-size:0.8rem;font-weight:600}
.toast-notice{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--bg-secondary);border:1px solid var(--accent);color:var(--text-primary);padding:10px 20px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);font-size:0.875rem;font-weight:500;z-index:10000;opacity:0;transition:all 0.3s cubic-bezier(0.16,1,0.3,1);display:flex;align-items:center;gap:8px}
.toast-notice.show{opacity:1;transform:translateX(-50%) translateY(0)}
@media(max-width:1024px){.generator-grid{grid-template-columns:1fr}.features-grid{grid-template-columns:repeat(2,1fr)}.steps-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}.dropdown-mega{min-width:540px}}
@media(max-width:768px){.mobile-menu-btn{display:flex}.nav-links{position:fixed;top:72px;left:0;right:0;background:var(--bg-card);border-bottom:1px solid var(--border-color);flex-direction:column;padding:20px;gap:10px;transform:translateY(-150%);transition:transform 0.3s ease;box-shadow:var(--shadow-lg)}.nav-links.open{transform:translateY(0)}.dropdown-menu{position:static;visibility:visible;opacity:1;transform:none;min-width:100%;box-shadow:none;border:none;background:var(--bg-secondary);padding:10px 12px;display:none;margin-top:6px}.nav-item.active .dropdown-menu{display:block}.dropdown-mega{grid-template-columns:1fr}.hero-title{font-size:2.1rem}.features-grid,.steps-grid{grid-template-columns:1fr}.form-actions{grid-template-columns:1fr}.bsod-screen{padding:28px 20px}.bsod-sad-face{font-size:4.5rem}.bsod-main-message{font-size:1.2rem}.bsod-progress-line{font-size:1.05rem}.bsod-bottom-info{flex-direction:column;gap:16px}.footer-grid{grid-template-columns:1fr}.cookie-banner{left:10px;right:10px;bottom:10px}}