*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg-start:#0a0e27;--bg-mid:#121836;--bg-end:#1a1f4e;--glass-bg:rgba(255,255,255,0.06);--glass-border:rgba(255,255,255,0.12);--glass-hover:rgba(255,255,255,0.1);--accent:#4f8cff;--accent-glow:rgba(79,140,255,0.35);--accent-hover:#6fa3ff;--text-primary:#e8ecf4;--text-secondary:rgba(232,236,244,0.65);--danger:#ff4f6d;--success:#34d399;--warning:#fbbf24;--radius:16px;--radius-sm:10px;--shadow:0 8px 32px rgba(0,0,0,0.3);--transition:0.3s cubic-bezier(0.4,0,0.2,1);--nav-height:64px}
html{scroll-behavior:smooth}
body{font-family:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;background:linear-gradient(135deg,var(--bg-start) 0%,var(--bg-mid) 50%,var(--bg-end) 100%);color:var(--text-primary);min-height:100vh;line-height:1.6;overflow-x:hidden}
body::before{content:'';position:fixed;top:0;left:0;width:100%;height:100%;background:radial-gradient(ellipse at 20% 50%,rgba(79,140,255,0.08) 0%,transparent 50%),radial-gradient(ellipse at 80% 20%,rgba(139,92,246,0.06) 0%,transparent 50%),radial-gradient(ellipse at 50% 80%,rgba(79,140,255,0.05) 0%,transparent 50%);pointer-events:none;z-index:0;animation:bgShift 12s ease-in-out infinite alternate}
@keyframes bgShift{0%{opacity:1}50%{opacity:.7}100%{opacity:1}}
.particles{position:fixed;top:0;left:0;width:100%;height:100%;pointer-events:none;z-index:0;overflow:hidden}
.particle{position:absolute;border-radius:50%;background:rgba(79,140,255,0.15);animation:float linear infinite}
@keyframes float{0%{transform:translateY(100vh) rotate(0);opacity:0}10%{opacity:1}90%{opacity:1}100%{transform:translateY(-10vh) rotate(720deg);opacity:0}}
a{color:var(--accent);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--accent-hover)}
::-webkit-scrollbar{width:8px}
::-webkit-scrollbar-track{background:var(--bg-start)}
::-webkit-scrollbar-thumb{background:rgba(79,140,255,0.3);border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:rgba(79,140,255,0.5)}

/* Navbar */
.navbar{position:sticky;top:0;z-index:1100;display:flex;align-items:center;justify-content:space-between;padding:0 2rem;height:var(--nav-height);background:rgba(10,14,39,0.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--glass-border);transition:all var(--transition)}
.navbar.scrolled{box-shadow:0 4px 20px rgba(0,0,0,0.4)}
.navbar__logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:700;color:var(--text-primary);text-decoration:none}
.navbar__logo svg{width:32px;height:32px;filter:drop-shadow(0 0 6px rgba(79,140,255,0.4))}
.navbar__links{display:flex;align-items:center;gap:1.5rem;list-style:none}
.navbar__links a{color:var(--text-secondary);font-size:0.9rem;font-weight:500;padding:0.4rem 0;position:relative;transition:color var(--transition)}
.navbar__links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--accent);transition:width var(--transition)}
.navbar__links a:hover{color:var(--text-primary)}
.navbar__links a:hover::after{width:100%}
.navbar__toggle{display:none;background:none;border:none;cursor:pointer;padding:4px}
.navbar__toggle span{display:block;width:24px;height:2px;background:var(--text-primary);margin:5px 0;transition:var(--transition)}

/* Hero */
.hero{position:relative;z-index:1;text-align:center;padding:4rem 2rem 2.5rem;max-width:800px;margin:0 auto}
.hero__badge{display:inline-block;padding:0.35rem 1rem;background:rgba(79,140,255,0.12);border:1px solid rgba(79,140,255,0.25);border-radius:20px;font-size:0.8rem;font-weight:600;color:var(--accent);margin-bottom:1.25rem;animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(79,140,255,0.2)}50%{box-shadow:0 0 0 8px rgba(79,140,255,0)}}
.hero__title{font-size:clamp(2rem,5vw,3.2rem);font-weight:800;letter-spacing:-0.02em;margin-bottom:0.75rem;background:linear-gradient(135deg,#fff 0%,var(--accent) 50%,#818cf8 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;background-size:200% auto;animation:shimmer 4s ease-in-out infinite alternate}
@keyframes shimmer{0%{background-position:0% center}100%{background-position:100% center}}
.hero__subtitle{font-size:clamp(1rem,2.5vw,1.25rem);color:var(--text-secondary);font-weight:400;margin-bottom:1.5rem}
.hero__cta{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:linear-gradient(135deg,var(--accent),#6366f1);color:#fff;border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition);text-decoration:none;box-shadow:0 4px 15px var(--accent-glow)}
.hero__cta:hover{transform:translateY(-3px);box-shadow:0 8px 30px var(--accent-glow);color:#fff}
.stats-section{position:relative;z-index:1;display:flex;justify-content:center;gap:2rem;flex-wrap:wrap;padding:1.5rem 2rem;max-width:900px;margin:0 auto 1.5rem}
.stat-item{text-align:center}
.stat-item__number{font-size:2rem;font-weight:800;background:linear-gradient(135deg,var(--accent),#818cf8);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-item__label{font-size:0.8rem;color:var(--text-secondary);margin-top:0.2rem}
.section-title{text-align:center;margin-bottom:1.25rem;position:relative;z-index:1}
.section-title h2{font-size:1.6rem;font-weight:700;margin-bottom:0.4rem}
.section-title p{color:var(--text-secondary);font-size:0.95rem}
.section-title::after{content:'';display:block;width:50px;height:3px;background:linear-gradient(90deg,var(--accent),#818cf8);border-radius:2px;margin:0.6rem auto 0}

/* Tools Grid */
.tools-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1rem;max-width:1200px;margin:0 auto 2rem;padding:0 1.5rem}
.tool-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.4rem 1.1rem;text-align:center;cursor:pointer;transition:all 0.4s cubic-bezier(0.4,0,0.2,1);position:relative;overflow:hidden;text-decoration:none;color:var(--text-primary);display:flex;flex-direction:column;align-items:center;gap:0.7rem}
.tool-card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(79,140,255,0.06),transparent);opacity:0;transition:opacity var(--transition)}
.tool-card::after{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(79,140,255,0.08) 0%,transparent 60%);opacity:0;transition:opacity 0.5s}
.tool-card:hover{transform:translateY(-8px) scale(1.02);border-color:rgba(79,140,255,0.35);box-shadow:0 16px 48px rgba(79,140,255,0.18),0 0 0 1px rgba(79,140,255,0.1),var(--shadow)}
.tool-card:hover::before{opacity:1}
.tool-card:hover::after{opacity:1}
.tool-card__icon{width:52px;height:52px;border-radius:13px;background:rgba(79,140,255,0.12);display:flex;align-items:center;justify-content:center;font-size:1.5rem;transition:all 0.4s cubic-bezier(0.4,0,0.2,1)}
.tool-card:hover .tool-card__icon{background:rgba(79,140,255,0.22);transform:scale(1.15) rotate(-3deg);box-shadow:0 4px 15px rgba(79,140,255,0.2)}
.tool-card__name{font-size:1.05rem;font-weight:600}
.tool-card__badge{position:absolute;top:12px;right:12px;padding:0.15rem 0.5rem;border-radius:8px;font-size:0.65rem;font-weight:700;text-transform:uppercase;letter-spacing:0.5px}
.tool-card__badge--new{background:rgba(52,211,153,0.15);color:var(--success);border:1px solid rgba(52,211,153,0.3)}
.tool-card__badge--popular{background:rgba(251,191,36,0.15);color:var(--warning);border:1px solid rgba(251,191,36,0.3)}
.tool-card__desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.5}

/* Tool Page */
.tool-page{position:relative;z-index:1;max-width:800px;margin:0 auto;padding:1.5rem 1.25rem 3rem}
.tool-page__header{text-align:center;margin-bottom:1.25rem}
.tool-page__header h1{font-size:clamp(1.5rem,4vw,2.2rem);font-weight:700;margin-bottom:0.4rem}
.tool-page__header p{color:var(--text-secondary);font-size:0.95rem}

/* Glass Card */
.glass-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.5rem;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:var(--shadow)}

/* Upload Area */
.upload-area{border:2px dashed rgba(79,140,255,0.35);border-radius:var(--radius);padding:2rem 1.5rem;text-align:center;cursor:pointer;transition:all var(--transition);position:relative;background:rgba(79,140,255,0.03)}
.upload-area:hover,.upload-area.dragover{border-color:var(--accent);background:rgba(79,140,255,0.08)}
.upload-area.dragover{transform:scale(1.01);box-shadow:0 0 30px var(--accent-glow)}
.upload-area__icon{font-size:3rem;margin-bottom:1rem;opacity:0.7;transition:transform var(--transition)}
.upload-area:hover .upload-area__icon{transform:scale(1.1)}
.upload-area__text{font-size:1.1rem;color:var(--text-primary);margin-bottom:0.5rem}
.upload-area__subtext{font-size:0.85rem;color:var(--text-secondary)}
.upload-area input[type="file"]{display:none}

/* File List */
.file-list{margin-top:1.5rem;display:flex;flex-direction:column;gap:0.75rem}
.file-item{display:flex;align-items:center;justify-content:space-between;padding:0.75rem 1rem;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);border-radius:var(--radius-sm);animation:slideIn 0.3s ease}
@keyframes slideIn{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.file-item__info{display:flex;align-items:center;gap:0.75rem;min-width:0}
.file-item__icon{font-size:1.3rem;flex-shrink:0}
.file-item__name{font-size:0.9rem;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.file-item__size{font-size:0.8rem;color:var(--text-secondary);flex-shrink:0}
.file-item__remove{background:none;border:none;color:var(--danger);cursor:pointer;font-size:1.1rem;padding:0.25rem;border-radius:6px;transition:all var(--transition);flex-shrink:0}
.file-item__remove:hover{background:rgba(255,79,109,0.15)}

/* Action Button */
.action-btn{display:flex;align-items:center;justify-content:center;gap:0.5rem;width:100%;padding:1rem;margin-top:1.5rem;border:none;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--accent),#6366f1);color:#fff;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all var(--transition);position:relative;overflow:hidden}
.action-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,transparent,rgba(255,255,255,0.15));opacity:0;transition:opacity var(--transition)}
.action-btn:hover:not(:disabled)::before{opacity:1}
.action-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px var(--accent-glow)}
.action-btn:disabled{opacity:0.4;cursor:not-allowed}

/* Progress */
.progress-section{margin-top:1.5rem;display:none}
.progress-section.active{display:block}
.progress-bar-wrapper{width:100%;height:6px;background:rgba(255,255,255,0.08);border-radius:3px;overflow:hidden;margin-top:0.5rem}
.progress-bar{height:100%;width:0%;background:linear-gradient(90deg,var(--accent),#818cf8);border-radius:3px;transition:width 0.4s ease}
.progress-text{font-size:0.85rem;color:var(--text-secondary);margin-top:0.5rem;text-align:center}
.spinner{display:inline-block;width:20px;height:20px;border:2px solid rgba(255,255,255,0.2);border-top-color:#fff;border-radius:50%;animation:spin 0.7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* Output */
.output-section{margin-top:1.5rem;display:none;text-align:center}
.output-section.active{display:block}
.output-section__success{display:flex;align-items:center;justify-content:center;gap:0.5rem;color:var(--success);font-weight:600;font-size:1.1rem;margin-bottom:1rem}
.output-section__sizes{font-size:0.9rem;color:var(--text-secondary);margin-bottom:1rem}
.download-btn{display:inline-flex;align-items:center;gap:0.5rem;padding:0.85rem 2rem;background:linear-gradient(135deg,var(--success),#059669);color:#fff;border:none;border-radius:var(--radius-sm);font-size:1rem;font-weight:600;cursor:pointer;transition:all var(--transition)}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(52,211,153,0.3)}

/* Error */
.error-msg{margin-top:1rem;padding:0.75rem 1rem;background:rgba(255,79,109,0.1);border:1px solid rgba(255,79,109,0.25);border-radius:var(--radius-sm);color:var(--danger);font-size:0.9rem;display:none}
.error-msg.active{display:block}

/* FAQ */
.faq-section{position:relative;z-index:1;max-width:800px;margin:1.5rem auto 2rem;padding:0 1.5rem}
.faq-section h2{font-size:1.4rem;font-weight:700;margin-bottom:1.25rem;text-align:center}
.faq-item{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm);margin-bottom:0.6rem;overflow:hidden}
.faq-item__question{width:100%;padding:0.85rem 1.1rem;background:none;border:none;color:var(--text-primary);font-size:0.9rem;font-weight:600;text-align:left;cursor:pointer;display:flex;justify-content:space-between;align-items:center;transition:background var(--transition)}
.faq-item__question:hover{background:var(--glass-hover)}
.faq-item__question .chevron{transition:transform var(--transition);font-size:0.8rem}
.faq-item.open .faq-item__question .chevron{transform:rotate(180deg)}
.faq-item__answer{max-height:0;overflow:hidden;transition:max-height 0.35s ease,padding 0.35s ease;padding:0 1.1rem;color:var(--text-secondary);font-size:0.88rem;line-height:1.6}
.faq-item.open .faq-item__answer{max-height:300px;padding:0 1.1rem 0.9rem}

/* Ad Placeholder */
.ad-placeholder{background:rgba(255,255,255,0.03);border:1px dashed rgba(255,255,255,0.1);border-radius:var(--radius-sm);padding:1.5rem;text-align:center;color:var(--text-secondary);font-size:0.85rem;margin:1.5rem auto;max-width:800px;position:relative;z-index:1}

/* CTA */
.cta-section{position:relative;z-index:1;text-align:center;padding:1.25rem;margin-top:1.5rem}
.cta-section__title{font-size:1.2rem;font-weight:700;margin-bottom:0.75rem}
.cta-links{display:flex;flex-wrap:wrap;justify-content:center;gap:0.6rem}
.cta-links a{padding:0.4rem 1rem;background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:0.85rem;font-weight:500;transition:all var(--transition)}
.cta-links a:hover{border-color:var(--accent);background:rgba(79,140,255,0.1)}

/* Footer */
.footer{position:relative;z-index:1;border-top:1px solid var(--glass-border);color:var(--text-secondary);font-size:0.85rem;margin-top:1.5rem;padding:2rem 1.5rem 1rem;background:rgba(10,14,39,0.5)}
.footer__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1.5rem;max-width:1100px;margin:0 auto 1.5rem}
.footer__col h4{color:var(--text-primary);font-size:0.9rem;font-weight:600;margin-bottom:0.6rem}
.footer__col a{display:block;color:var(--text-secondary);font-size:0.85rem;padding:0.2rem 0;transition:color var(--transition)}
.footer__col a:hover{color:var(--accent)}
.footer__bottom{text-align:center;padding-top:1rem;border-top:1px solid var(--glass-border);font-size:0.8rem}

/* Features */
.features-section{position:relative;z-index:1;max-width:1100px;margin:0 auto 2rem;padding:0 1.5rem}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.feature-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;display:flex;gap:0.85rem;align-items:flex-start;transition:all var(--transition)}
.feature-card:hover{border-color:rgba(79,140,255,0.25);transform:translateY(-3px)}
.feature-card__icon{width:44px;height:44px;border-radius:11px;background:rgba(79,140,255,0.12);display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.feature-card__title{font-size:1rem;font-weight:600;margin-bottom:0.3rem}
.feature-card__desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.5}

/* Testimonials */
.testimonials-section{position:relative;z-index:1;max-width:1100px;margin:0 auto 2rem;padding:0 1.5rem}
.testimonials-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.testimonial-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;transition:all var(--transition)}
.testimonial-card:hover{border-color:rgba(79,140,255,0.25)}
.testimonial-card__stars{color:#fbbf24;font-size:0.9rem;margin-bottom:0.75rem}
.testimonial-card__text{font-size:0.9rem;color:var(--text-secondary);line-height:1.7;margin-bottom:1rem;font-style:italic}
.testimonial-card__author{display:flex;align-items:center;gap:0.75rem}
.testimonial-card__avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#818cf8);display:flex;align-items:center;justify-content:center;font-size:0.85rem;font-weight:700;color:#fff}
.testimonial-card__name{font-size:0.85rem;font-weight:600}
.testimonial-card__role{font-size:0.75rem;color:var(--text-secondary)}

/* How It Works */
.how-section{position:relative;z-index:1;max-width:900px;margin:0 auto 2rem;padding:0 1.5rem}
.how-steps{display:flex;justify-content:center;gap:1.5rem;flex-wrap:wrap}
.how-step{text-align:center;max-width:200px}
.how-step__number{width:42px;height:42px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#6366f1);color:#fff;font-size:1.1rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 0.6rem;box-shadow:0 4px 15px var(--accent-glow)}
.how-step__title{font-size:0.95rem;font-weight:600;margin-bottom:0.25rem}
.how-step__desc{font-size:0.8rem;color:var(--text-secondary)}

/* How-to Guides */
.howto-section{position:relative;z-index:1;max-width:1100px;margin:0 auto 2rem;padding:0 1.5rem}
.howto-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem}
.howto-card{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem;transition:all var(--transition);display:flex;flex-direction:column}
.howto-card:hover{border-color:rgba(79,140,255,0.25);transform:translateY(-2px)}
.howto-card__icon{font-size:1.8rem;margin-bottom:0.75rem}
.howto-card__title{font-size:1rem;font-weight:600;margin-bottom:0.5rem}
.howto-card__desc{font-size:0.85rem;color:var(--text-secondary);line-height:1.6;margin-bottom:1rem;flex-grow:1}
.howto-card__link{font-size:0.85rem;color:var(--accent);font-weight:600;text-decoration:none;transition:color var(--transition)}
.howto-card__link:hover{color:#818cf8}

/* About Page */
.about-content{max-width:800px;margin:0 auto}
.about-section{margin-bottom:2.5rem}
.about-section h2{font-size:1.4rem;font-weight:700;margin-bottom:0.75rem;color:var(--text-primary)}
.about-section p{font-size:0.95rem;color:var(--text-secondary);line-height:1.8;margin-bottom:1rem}
.about-list{list-style:none;padding:0;margin:0}
.about-list li{font-size:0.9rem;color:var(--text-secondary);line-height:1.8;padding:0.5rem 0}
.about-tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:0.75rem;margin-top:1rem}
.about-tool-card{background:rgba(79,140,255,0.08);border:1px solid var(--glass-border);border-radius:8px;padding:0.75rem 1rem;font-size:0.85rem;color:var(--text-primary);text-decoration:none;transition:all var(--transition)}
.about-tool-card:hover{background:rgba(79,140,255,0.15);border-color:var(--accent)}

/* Legal Pages */
.legal-content{max-width:800px;margin:0 auto}
.legal-section{margin-bottom:2.5rem}
.legal-section h2{font-size:1.3rem;font-weight:700;margin-bottom:0.75rem;color:var(--text-primary)}
.legal-section h3{font-size:1.1rem;font-weight:600;margin:1rem 0 0.5rem;color:var(--text-primary)}
.legal-section p{font-size:0.9rem;color:var(--text-secondary);line-height:1.8;margin-bottom:1rem}
.legal-list{list-style:none;padding:0;margin:0 0 1rem}
.legal-list li{font-size:0.85rem;color:var(--text-secondary);line-height:1.8;padding:0.4rem 0;padding-left:1.5rem;position:relative}
.legal-list li::before{content:"•";position:absolute;left:0;color:var(--accent)}

.editor-loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(5,8,24,0.75);backdrop-filter:blur(6px);z-index:9999}
.editor-loading__box{background:var(--glass-bg);border:1px solid var(--glass-border);border-radius:var(--radius);padding:1.25rem 1.5rem;min-width:260px;max-width:90vw;text-align:center}
.editor-loading__spinner{width:34px;height:34px;border-radius:50%;border:3px solid rgba(255,255,255,0.15);border-top-color:var(--accent);margin:0 auto 0.85rem;animation:spin 0.9s linear infinite}
.editor-loading__title{font-weight:700;margin-bottom:0.25rem}
.editor-loading__sub{font-size:0.85rem;color:var(--text-secondary)}

@keyframes spin{to{transform:rotate(360deg)}}

/* Level Cards for Compression */
.level-card {
  cursor: pointer;
  position: relative;
}
.level-card input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.level-card__content {
  padding: 0.75rem;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.02);
  text-align: center;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.level-card input:checked + .level-card__content {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.1);
  box-shadow: 0 0 15px rgba(79, 140, 255, 0.1);
}
.level-card__title {
  display: block;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-primary);
}
.level-card__desc {
  display: block;
  font-size: 0.7rem;
  color: var(--text-secondary);
}
.level-card input:checked + .level-card__content .level-card__title {
  color: var(--accent);
}

/* Scroll Reveal */
.reveal{opacity:0;transform:translateY(30px);transition:all 0.6s cubic-bezier(0.4,0,0.2,1)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* Back to Top */
.back-to-top{position:fixed;bottom:2rem;right:2rem;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#6366f1);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.2rem;z-index:90;opacity:0;transform:translateY(20px);transition:all var(--transition);box-shadow:0 4px 15px var(--accent-glow)}
.back-to-top.visible{opacity:1;transform:translateY(0)}
.back-to-top:hover{transform:translateY(-3px);box-shadow:0 8px 25px var(--accent-glow)}

/* Responsive */
@media(max-width: 992px) {
  .navbar { padding: 0 1.25rem; height: 60px; }
  
  .navbar__links {
    display: flex;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    background: rgba(10, 14, 39, 0.9);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    padding: 5rem 1.5rem 2rem;
    gap: 0.5rem;
    border-left: 1px solid var(--glass-border);
    z-index: 1000;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: -10px 0 30px rgba(0,0,0,0.3);
    opacity: 1;
    transform: none;
    overflow-y: auto;
  }

  .navbar__links.open {
    right: 0;
  }

  .navbar__links li {
    width: 100%;
    opacity: 0;
    transform: translateX(20px);
    transition: all 0.4s ease;
  }

  .navbar__links.open li {
    opacity: 1;
    transform: translateX(0);
  }

  /* Staggered animation for menu items */
  .navbar__links.open li:nth-child(1) { transition-delay: 0.1s; }
  .navbar__links.open li:nth-child(2) { transition-delay: 0.15s; }
  .navbar__links.open li:nth-child(3) { transition-delay: 0.2s; }
  .navbar__links.open li:nth-child(4) { transition-delay: 0.25s; }
  .navbar__links.open li:nth-child(5) { transition-delay: 0.3s; }
  .navbar__links.open li:nth-child(6) { transition-delay: 0.35s; }
  .navbar__links.open li:nth-child(7) { transition-delay: 0.4s; }
  .navbar__links.open li:nth-child(8) { transition-delay: 0.45s; }
  .navbar__links.open li:nth-child(n+9) { transition-delay: 0.5s; }

  .navbar__links li a {
    font-size: 1.05rem;
    font-weight: 600;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    gap: 12px;
    border-radius: 12px;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
    transition: all 0.3s ease;
  }

  .navbar__links li a:hover, .navbar__links li a:active {
    background: rgba(79, 140, 255, 0.1);
    border-color: rgba(79, 140, 255, 0.2);
    color: var(--accent);
    transform: translateX(5px);
  }

  .navbar__toggle {
    display: block;
    position: relative;
    z-index: 1001;
    background: rgba(255, 255, 255, 0.05);
    width: 40px;
    height: 40px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
  }

  .navbar__toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
  }

  .navbar__toggle span {
    width: 20px;
    height: 2px;
    margin: 2px 0;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .navbar__toggle.active {
    border-color: rgba(255, 255, 255, 0.25);
    background: rgba(255, 255, 255, 0.08);
  }

  .navbar__toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); width: 22px; }
  .navbar__toggle.active span:nth-child(2) { opacity: 0; transform: translateX(-10px); }
  .navbar__toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); width: 22px; }

  .hero { padding: 3rem 1.25rem 2rem; }
  .tools-grid{padding:0 1rem;gap:0.85rem}
  .tool-card{padding:1.25rem 1rem}
  .tool-page{padding:1.25rem 1rem 2.5rem}
  .glass-card{padding:1.1rem}
  .upload-area{padding:1.5rem 1rem}
  .faq-section{padding:0 1rem}
  .stats-section{padding:1rem 1.25rem;gap:1.25rem}
  .features-section,.testimonials-section,.how-section{padding:0 1rem}
  .footer{padding:1.5rem 1rem 0.75rem}
  .footer__grid{gap:1rem}
}

/* Premium Support System */
.premium-support-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-left: auto;
  backdrop-filter: blur(5px);
}
.premium-support-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.premium-support-modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(5, 8, 24, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}
.premium-support-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.premium-support-modal {
  background: rgba(15, 23, 42, 0.85);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  text-align: center;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 30px rgba(79, 140, 255, 0.1);
  transform: scale(0.95) translateY(10px);
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}
.premium-support-modal-overlay.active .premium-support-modal {
  transform: scale(1) translateY(0);
}

.premium-support-close {
  position: absolute;
  top: 15px; right: 15px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text-secondary);
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
}
.premium-support-close:hover {
  background: rgba(239, 68, 68, 0.15);
  color: #ff4f6d;
  border-color: rgba(239, 68, 68, 0.2);
  transform: rotate(90deg);
}

.premium-support-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.premium-support-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.premium-support-qr {
  background: rgba(255, 255, 255, 0.03);
  padding: 15px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: inline-block;
  margin-bottom: 1.5rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}
.premium-support-qr img {
  display: block;
  width: 180px;
  height: auto;
  border-radius: 8px;
}
.premium-support-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.premium-support-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 10px 14px;
  border-radius: 12px;
  transition: background 0.2s;
}
.premium-support-row:hover {
  background: rgba(255, 255, 255, 0.06);
}
.premium-support-label {
  display: flex;
  flex-direction: column;
  text-align: left;
}
.premium-support-label-title {
  font-size: 0.65rem;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 2px;
}
.premium-support-label-value {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
  font-family: monospace;
}
.premium-support-copy {
  background: rgba(79, 140, 255, 0.15);
  color: var(--accent);
  border: 1px solid rgba(79, 140, 255, 0.3);
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: flex; align-items: center; gap: 6px;
}
.premium-support-copy:hover {
  background: var(--accent);
  color: white;
}
.premium-support-copy.copied {
  background: #10b981;
  color: white;
  border-color: #10b981;
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-left: 1rem;
  padding-right: 1rem;
}
.footer__bottom > div:first-child {
  flex: 1;
  text-align: left;
}
@media (max-width: 600px) {
  .footer__bottom { flex-direction: column; text-align: center; }
  .footer__bottom > div:first-child { text-align: center; }
  .premium-support-btn { margin: 0 auto; }
}