/* Novis Landing Page — Dark Tech Theme */
:root {
  --bg-primary: #0a0e1a; --bg-secondary: #111827; --bg-card: #141b2d;
  --text-primary: #f1f5f9; --text-secondary: #94a3b8; --text-muted: #64748b;
  --accent: #3b82f6; --accent-glow: rgba(59,130,246,0.35);
  --border: rgba(148,163,184,0.1); --radius: 12px;
  --font: -apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg-primary);color:var(--text-primary);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased}

.nav{position:sticky;top:0;z-index:100;backdrop-filter:blur(12px);background:rgba(10,14,26,0.85);border-bottom:1px solid var(--border)}
.nav-inner{max-width:1100px;margin:0 auto;padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-link{color:var(--text-secondary);text-decoration:none;font-size:14px;transition:color .2s}
.nav-link:hover{color:var(--accent)}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-primary);font-weight:700;font-size:18px}
.logo-icon{font-size:24px}
.nav-btn{display:inline-flex;align-items:center;padding:8px 20px;border-radius:8px;background:var(--accent);color:#fff;text-decoration:none;font-size:14px;font-weight:600;transition:box-shadow 0.2s,transform 0.2s}
.nav-btn:hover{box-shadow:0 4px 16px var(--accent-glow);transform:translateY(-1px)}

.hero{text-align:center;padding:100px 24px 80px;background:linear-gradient(180deg,rgba(59,130,246,0.04) 0%,transparent 70%)}
.hero-badge{display:inline-block;padding:4px 16px;border-radius:20px;background:rgba(59,130,246,0.1);border:1px solid rgba(59,130,246,0.2);color:var(--accent);font-size:13px;font-weight:500;margin-bottom:32px}
.hero-title{font-size:clamp(32px,6vw,52px);font-weight:800;line-height:1.15;margin-bottom:20px;letter-spacing:-0.5px}
.hero-accent{color:var(--accent)}
.hero-desc{font-size:17px;color:var(--text-secondary);max-width:560px;margin:0 auto 32px;line-height:1.8}
.hero-btns{display:flex;justify-content:center;align-items:center;gap:16px;flex-wrap:wrap}
.cta-btn{display:inline-flex;align-items:center;padding:14px 36px;border-radius:10px;background:var(--accent);color:#fff;font-size:16px;font-weight:700;text-decoration:none;transition:box-shadow 0.2s,transform 0.2s}
.cta-btn:hover{box-shadow:0 6px 24px var(--accent-glow);transform:translateY(-2px);color:#fff}
.cta-btn-secondary{background:rgba(59,130,246,0.12);border:1px solid rgba(59,130,246,0.3);color:var(--accent)}
.cta-btn-secondary:hover{background:rgba(59,130,246,0.2)}
.cta-btn-large{padding:16px 48px;font-size:18px}
.cta-sub{margin-top:12px;font-size:13px;color:var(--text-muted)}

section{padding:80px 24px;border-top:1px solid var(--border)}
.section-label{text-align:center;font-size:13px;color:var(--accent);text-transform:uppercase;letter-spacing:2px;margin-bottom:12px}
.section-title{font-size:28px;font-weight:700;text-align:center;margin-bottom:16px;letter-spacing:-0.3px}
.section-desc{text-align:center;font-size:15px;color:var(--text-secondary);max-width:600px;margin:0 auto 48px;line-height:1.7}

.demo-container{max-width:1100px;margin:0 auto}
.demo-frames{display:grid;grid-template-columns:repeat(7,auto);align-items:center;gap:8px}
.demo-arrow{display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:20px;font-weight:700;padding:0 2px}
@media(min-width:900px){
  .demo-frames{grid-template-columns:1fr auto 1fr auto 1fr auto 1fr}
  .demo-arrow{font-size:24px}
}
.demo-frame{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px}
.demo-frame-num{display:inline-block;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-size:13px;font-weight:700;text-align:center;line-height:28px;margin-bottom:16px}
.demo-frame h3{font-size:15px;margin-bottom:12px;color:var(--text-primary)}
.demo-frame p{font-size:13px;color:var(--text-secondary);line-height:1.6}
.demo-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.demo-tag{padding:2px 10px;border-radius:4px;font-size:11px;font-weight:600;background:rgba(59,130,246,0.12);color:var(--accent)}
/* demo-arrow moved into .demo-container block above */

.compare-table{max-width:800px;margin:0 auto;width:100%;border-collapse:collapse}
.compare-table th{text-align:left;padding:16px 20px;border-bottom:1px solid var(--border);font-size:14px;color:var(--text-muted);font-weight:600}
.compare-table th:first-child{width:120px}
.compare-table td{padding:16px 20px;border-bottom:1px solid var(--border);font-size:14px}
.compare-table td:first-child{color:var(--text-muted);font-weight:600}
.compare-table .win{color:#10b981;font-weight:600}

.feature-grid{max-width:1000px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:border-color 0.2s,transform 0.2s,box-shadow 0.2s}
.feature-card:hover{border-color:rgba(59,130,246,0.3);transform:translateY(-4px);box-shadow:0 8px 32px rgba(0,0,0,0.3)}
.feature-icon{font-size:36px;margin-bottom:16px}
.feature-title{font-size:17px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}
.feature-desc{font-size:14px;color:var(--text-secondary);line-height:1.7}

.case-grid{max-width:900px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px}
.case-avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,var(--accent),#8b5cf6);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.case-title{font-size:15px;font-weight:700;margin-bottom:8px;color:var(--text-primary)}
.case-desc{font-size:13px;color:var(--text-secondary);line-height:1.7}
.case-tag{display:inline-block;margin-top:12px;padding:2px 8px;border-radius:4px;background:rgba(59,130,246,0.1);color:var(--accent);font-size:11px}

.trust-grid{max-width:600px;margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center}
.trust-item{padding:20px}
.trust-icon{font-size:36px;margin-bottom:12px}
.trust-title{font-size:16px;font-weight:700;margin-bottom:6px}
.trust-desc{font-size:13px;color:var(--text-secondary)}

.download{padding:80px 24px;text-align:center;border-top:1px solid var(--border);background:linear-gradient(180deg,transparent 0%,rgba(59,130,246,0.04) 100%)}
.version-info{margin-top:16px;font-size:13px;color:var(--text-muted)}

.footer{border-top:1px solid var(--border);padding:32px 24px;text-align:center}
.footer-text{font-size:14px;color:var(--text-muted);margin-bottom:8px}
.footer-copy{font-size:12px;color:var(--text-muted);opacity:0.6}

/* ── Guide / FAQ shared ── */
.nav-back{color:var(--text-secondary);text-decoration:none;font-size:14px;transition:color .2s}
.nav-back:hover{color:var(--accent)}
.container{max-width:800px;margin:0 auto;padding:60px 24px 80px}
.container h1{font-size:32px;font-weight:800;margin-bottom:8px;letter-spacing:-.3px}
.container h1 span{color:var(--accent)}
.subtitle{color:var(--text-muted);font-size:15px;margin-bottom:48px}
.step{margin-bottom:40px;padding:28px 28px 24px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}
.step-num{display:inline-block;padding:2px 10px;border-radius:6px;background:rgba(59,130,246,0.12);color:var(--accent);font-size:12px;font-weight:700;margin-bottom:12px}
.step h3{font-size:18px;margin-bottom:8px}
.step p{color:var(--text-secondary);font-size:15px;margin-bottom:6px}
.step .tip{color:var(--accent);font-size:13px;margin-top:8px;padding:8px 12px;background:rgba(59,130,246,0.06);border-radius:6px}
.example{font-style:italic;color:var(--text-muted);font-size:14px;padding:6px 12px;border-left:2px solid var(--border);margin:8px 0}
.faq-item{margin-bottom:32px;padding:24px 28px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius)}
.faq-item h3{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--text-primary)}
.faq-item h3::before{content:"Q: ";color:var(--accent);font-weight:800}
.faq-item p{color:var(--text-secondary);font-size:15px}
.faq-item p::before{content:"A: ";color:var(--accent);font-weight:700}

@media(max-width:768px){
  .feature-grid,.case-grid{grid-template-columns:1fr}
  .demo-frames{grid-template-columns:1fr;gap:12px}
  .demo-arrow{transform:rotate(90deg)}
  .hero{padding:60px 20px 48px}
  .hero-title{font-size:28px}
  section{padding:48px 20px}
  .compare-table th,.compare-table td{padding:10px 12px;font-size:13px}
}