/* ============================================
   iMalware — Style System
   Dark security aesthetic · Green accent
   ============================================ */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --bg:        #06080f;
  --bg-raised: #0d1117;
  --bg-card:   #111820;
  --bg-hover:  #161d27;
  --border:    #1e2a3a;
  --border-lt: #2a3a4e;
  --text:      #c9d1d9;
  --text-dim:  #6e7a8a;
  --text-head: #ecf0f3;
  --accent:    #00e19a;
  --accent-dim:#00e19a33;
  --accent-glow:#00e19a22;
  --danger:    #ff4757;
  --danger-dim:#ff475722;
  --safe:      #00e19a;
  --radius:    12px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --max-w:     1120px;
  --font:      'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block}
a{color:var(--accent);text-decoration:none;transition:opacity .2s}
a:hover{opacity:.8}
ul{list-style:none}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* --- Header --- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(6,8,15,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
}
.nav-container{
  max-width:var(--max-w);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 24px;height:60px;
}
.logo{display:flex;align-items:center;gap:8px;color:var(--text-head);font-weight:700;font-size:1.15rem}
.logo-icon{color:var(--accent);display:flex}
.nav-links{display:flex;gap:28px}
.nav-links a{color:var(--text-dim);font-size:.875rem;font-weight:500;transition:color .2s}
.nav-links a:hover{color:var(--text-head);opacity:1}

/* --- Hero --- */
.hero{
  max-width:var(--max-w);margin:0 auto;
  padding:72px 24px 48px;
  text-align:center;
}
.hero h1{
  font-size:clamp(1.85rem,5vw,3rem);
  font-weight:800;
  color:var(--text-head);
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.accent{color:var(--accent)}
.hero-sub{
  font-size:1.1rem;color:var(--text-dim);
  max-width:560px;margin:0 auto 40px;
}

/* --- Scanner Card --- */
.scanner-card{
  max-width:620px;margin:0 auto 32px;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px;
  position:relative;
  overflow:hidden;
}
.scanner-card::before{
  content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:60%;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  opacity:.5;
}

/* Dropzone */
.dropzone{
  border:2px dashed var(--border-lt);
  border-radius:var(--radius);
  padding:48px 24px;
  cursor:pointer;
  transition:border-color .25s,background .25s;
  position:relative;
}
.dropzone:hover,.dropzone.drag-over{
  border-color:var(--accent);
  background:var(--accent-glow);
}
.dropzone-inner{display:flex;flex-direction:column;align-items:center;gap:12px}
.dropzone-icon{color:var(--text-dim);transition:color .25s}
.dropzone:hover .dropzone-icon{color:var(--accent)}
.dropzone-text{font-size:1rem;color:var(--text-head)}
.dropzone-text strong{font-weight:600}
.dropzone-hint{font-size:.8rem;color:var(--text-dim)}

/* Progress */
.scan-progress{text-align:center;padding:40px 0}
.progress-bar{
  height:4px;background:var(--bg);border-radius:4px;overflow:hidden;margin-bottom:16px;
}
.progress-fill{
  height:100%;width:0;background:var(--accent);border-radius:4px;
  transition:width .3s ease;
}
.progress-text{font-size:.9rem;color:var(--text-dim)}

/* Result */
.scan-result{text-align:center;padding:32px 0}
.result-icon{margin:0 auto 16px;width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2rem}
.result-icon.safe{background:var(--accent-dim);color:var(--safe)}
.result-icon.danger{background:var(--danger-dim);color:var(--danger)}
.result-icon.error{background:#ffa50022;color:#ffa500}
.result-title{font-size:1.5rem;font-weight:700;color:var(--text-head);margin-bottom:8px}
.result-detail{color:var(--text-dim);margin-bottom:20px;font-size:.95rem}
.result-meta{
  display:inline-flex;gap:8px;flex-wrap:wrap;justify-content:center;
  background:var(--bg);border-radius:var(--radius-sm);padding:12px 20px;margin-bottom:24px;
  font-family:var(--font-mono);font-size:.78rem;color:var(--text-dim);
  word-break:break-all;
}
.btn-scan-again{
  background:none;border:1px solid var(--border-lt);color:var(--text);
  padding:10px 24px;border-radius:var(--radius-sm);cursor:pointer;
  font-size:.875rem;font-weight:500;transition:border-color .2s,color .2s;
}
.btn-scan-again:hover{border-color:var(--accent);color:var(--accent)}

/* Trust Bar */
.trust-bar{
  display:flex;justify-content:center;flex-wrap:wrap;gap:24px 36px;
  max-width:620px;margin:0 auto;
}
.trust-item{
  display:flex;align-items:center;gap:8px;
  font-size:.82rem;color:var(--text-dim);font-weight:500;
}
.trust-item svg{color:var(--accent);flex-shrink:0}

/* --- Sections --- */
.section{
  max-width:var(--max-w);margin:0 auto;
  padding:80px 24px;
}
.section-title{
  font-size:clamp(1.5rem,3.5vw,2.1rem);font-weight:800;
  color:var(--text-head);text-align:center;margin-bottom:8px;
  letter-spacing:-.015em;
}
.section-sub{
  text-align:center;color:var(--text-dim);
  max-width:520px;margin:0 auto 48px;font-size:1rem;
}

/* Steps */
.steps-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px}
.step-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;
  transition:border-color .25s;
}
.step-card:hover{border-color:var(--accent)}
.step-num{
  width:36px;height:36px;border-radius:50%;
  background:var(--accent-dim);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:.9rem;margin-bottom:16px;
}
.step-card h3{font-size:1.05rem;font-weight:700;color:var(--text-head);margin-bottom:8px}
.step-card p{font-size:.9rem;color:var(--text-dim);line-height:1.6}

/* Guide Grid */
.guide-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.guide-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:28px;
}
.guide-card h3{font-size:1.05rem;font-weight:700;color:var(--text-head);margin-bottom:10px}
.guide-card p{font-size:.88rem;color:var(--text-dim);line-height:1.7}
.guide-card strong{color:var(--text);font-weight:600}

/* FAQ */
.faq-list{max-width:700px;margin:0 auto}
.faq-item{
  border:1px solid var(--border);border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;
  transition:border-color .2s;
}
.faq-item[open]{border-color:var(--border-lt)}
.faq-item summary{
  padding:16px 20px;cursor:pointer;font-weight:600;font-size:.95rem;
  color:var(--text-head);list-style:none;display:flex;align-items:center;justify-content:space-between;
  transition:background .2s;
}
.faq-item summary:hover{background:var(--bg-hover)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:'+';font-size:1.2rem;color:var(--text-dim);font-weight:400;
  transition:transform .2s;flex-shrink:0;margin-left:12px;
}
.faq-item[open] summary::after{content:'−'}
.faq-answer{padding:0 20px 16px}
.faq-answer p{font-size:.9rem;color:var(--text-dim);line-height:1.7}

/* CTA */
.cta-section{padding-bottom:96px}
.cta-box{
  text-align:center;
  background:linear-gradient(135deg,var(--bg-card),#0d1a1a);
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:56px 32px;position:relative;overflow:hidden;
}
.cta-box::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  opacity:.4;
}
.cta-box h2{font-size:1.6rem;font-weight:800;color:var(--text-head);margin-bottom:10px}
.cta-box p{color:var(--text-dim);max-width:440px;margin:0 auto 28px;font-size:.95rem}
.btn-primary{
  display:inline-block;background:var(--accent);color:#06080f;
  padding:12px 32px;border-radius:var(--radius-sm);font-weight:700;
  font-size:.95rem;transition:opacity .2s,transform .15s;
}
.btn-primary:hover{opacity:.9;transform:translateY(-1px)}

/* --- Footer --- */
.site-footer{
  border-top:1px solid var(--border);
  padding:56px 24px 24px;
}
.footer-inner{
  max-width:var(--max-w);margin:0 auto;
  display:flex;flex-wrap:wrap;gap:40px 60px;
}
.footer-brand{flex:1 1 260px}
.footer-brand .logo{margin-bottom:12px}
.footer-tagline{font-size:.82rem;color:var(--text-dim);line-height:1.6}
.footer-nav{
  display:flex;flex-wrap:wrap;gap:40px 56px;flex:1 1 400px;
}
.footer-col h4{font-size:.78rem;font-weight:700;color:var(--text-head);text-transform:uppercase;letter-spacing:.06em;margin-bottom:12px}
.footer-col ul{display:flex;flex-direction:column;gap:8px}
.footer-col a{color:var(--text-dim);font-size:.85rem;transition:color .2s}
.footer-col a:hover{color:var(--text-head);opacity:1}
.footer-bottom{
  max-width:var(--max-w);margin:32px auto 0;
  padding-top:20px;border-top:1px solid var(--border);
  text-align:center;font-size:.78rem;color:var(--text-dim);
}

/* --- Page Content (subpages) --- */
.page-section{max-width:740px}
.page-section .section-title{margin-bottom:32px}
.page-content h2{
  font-size:1.15rem;font-weight:700;color:var(--text-head);
  margin:32px 0 10px;
}
.page-content h2:first-of-type{margin-top:0}
.page-content p{
  font-size:.92rem;color:var(--text-dim);line-height:1.75;margin-bottom:12px;
}
.page-content em{color:var(--text-dim);font-style:italic}
.page-content strong{color:var(--text);font-weight:600}

/* --- Utility --- */
.hidden{display:none !important}

/* --- Responsive --- */
@media(max-width:768px){
  .nav-links{display:none}
  .hero{padding:48px 20px 36px}
  .scanner-card{padding:24px;margin-left:8px;margin-right:8px}
  .dropzone{padding:36px 16px}
  .section{padding:56px 20px}
  .steps-grid,.guide-grid{grid-template-columns:1fr}
  .trust-bar{gap:16px 24px}
  .footer-inner{flex-direction:column;gap:32px}
  .footer-nav{gap:28px 40px}
}

@media(max-width:480px){
  .hero h1{font-size:1.6rem}
  .trust-bar{flex-direction:column;align-items:center;gap:12px}
}

/* --- Animations --- */
@keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.hero-content{animation:fadeUp .6s ease both}
.scanner-card{animation:fadeUp .6s ease .15s both}
.trust-bar{animation:fadeUp .6s ease .3s both}

/* Focus styles */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

/* Print */
@media print{
  .site-header,.scanner-card,.trust-bar,.cta-section{display:none}
  body{background:#fff;color:#111}
  .section-title,.guide-card h3,.step-card h3{color:#111}
}