*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}body{font-family:'Hind Siliguri',sans-serif;background:var(--bg-primary);color:#e2e8f0;line-height:1.75;min-height:100vh;display:flex;flex-direction:column}a{text-decoration:none;color:inherit}main{flex:1}.btn-nav-green{background:var(--accent-green);color:#06281f !important;font-weight:700;border-radius:8px;padding:7px 18px;font-size:0.88rem;transition:background 0.2s,transform 0.15s;display:inline-block}.btn-nav-green:hover{background:var(--secondary-dark,var(--secondary));transform:translateY(-1px)}.btn-nav-outline{border:1.5px solid var(--accent-green);color:var(--accent-green) !important;font-weight:600;border-radius:8px;padding:6px 16px;font-size:0.88rem;transition:background 0.2s;display:inline-block}.btn-nav-outline:hover{background:rgba(34,197,94,0.1)}.error-section{padding:80px 0 60px;background:linear-gradient(160deg,#071e16 0%,#0b2d20 50%,#06281f 100%);position:relative;overflow:hidden;text-align:center}.error-section::before{content:'';position:absolute;top:-100px;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(34,197,94,0.06),transparent 65%);border-radius:50%;pointer-events:none}.error-section::after{content:'';position:absolute;bottom:-80px;right:-80px;width:320px;height:320px;background:radial-gradient(circle,rgba(16,185,129,0.05),transparent 70%);border-radius:50%;pointer-events:none}.error-code{font-size:clamp(6rem,18vw,11rem);font-weight:700;line-height:1;background:linear-gradient(135deg,var(--accent-green) 0%,var(--accent-teal) 60%,#059669 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;position:relative;display:inline-block;filter:drop-shadow(0 0 40px rgba(34,197,94,0.18))}.error-code::after{content:'404';position:absolute;inset:0;background:linear-gradient(135deg,var(--accent-green),var(--accent-teal));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;filter:blur(28px);opacity:0.25;z-index:-1}.error-icon-wrap{width:80px;height:80px;border-radius:50%;background:rgba(34,197,94,0.08);border:2px solid rgba(34,197,94,0.2);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:1.8rem;color:var(--accent-green);animation:pulse-ring 2.5s ease-in-out infinite}@keyframes pulse-ring{0%,100%{box-shadow:0 0 0 0 rgba(34,197,94,0.15)}50%{box-shadow:0 0 0 14px rgba(34,197,94,0)}}.error-title{font-size:1.6rem;font-weight:700;color:var(--text-light);margin:1rem 0 0.6rem}.error-desc{color:var(--text-muted);font-size:0.95rem;max-width:440px;margin:0 auto 2rem}.btn-home{background:var(--accent-green);color:#06281f;font-weight:700;border-radius:12px;padding:13px 34px;font-size:1rem;display:inline-flex;align-items:center;gap:0.5rem;transition:background 0.2s,transform 0.15s}.btn-home:hover{background:var(--secondary-dark,var(--secondary));transform:translateY(-2px);color:#06281f}.btn-back{border:1.5px solid var(--accent-green);color:var(--accent-green);font-weight:600;border-radius:12px;padding:12px 28px;font-size:0.95rem;display:inline-flex;align-items:center;gap:0.5rem;transition:background 0.2s;cursor:pointer;background:transparent}.btn-back:hover{background:rgba(34,197,94,0.08);color:var(--accent-green)}.quick-section{padding:52px 0;background:var(--bg-secondary)}.section-label{font-size:0.78rem;font-weight:700;text-transform:uppercase;letter-spacing:0.1em;color:var(--accent-teal);margin-bottom:0.5rem}.section-title{font-size:1.4rem;font-weight:700;color:var(--text-light);margin-bottom:0.4rem}.section-title span{color:var(--accent-green)}.divider{width:40px;height:3px;background:linear-gradient(90deg,var(--accent-green),var(--accent-teal));border-radius:2px;margin:0.8rem auto 2rem}.nav-card{background:rgba(6,40,31,0.8);border:1px solid var(--card-border);border-radius:14px;padding:1.3rem 1.1rem;height:auto;display:flex;align-items:center;gap:1rem;transition:border-color 0.2s,transform 0.2s}.nav-card:hover{border-color:rgba(34,197,94,0.4);transform:translateY(-2px)}.nc-icon{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.1rem;flex-shrink:0}.nc-green{background:rgba(34,197,94,0.1);color:var(--accent-green)}.nc-teal{background:rgba(16,185,129,0.1);color:var(--accent-teal)}.nc-gold{background:rgba(251,191,36,0.1);color:#fbbf24}.nc-blue{background:rgba(96,165,250,0.1);color:#60a5fa}.nc-purple{background:rgba(167,139,250,0.1);color:#a78bfa}.nc-red{background:rgba(248,113,113,0.1);color:#f87171}.nc-body h6{color:#e2e8f0;font-weight:700;font-size:0.88rem;margin:0 0 2px}.nc-body p{color:var(--text-muted);font-size:0.78rem;margin:0}.feature-badge{display:inline-flex;align-items:center;gap:4px;font-size:0.75rem;font-weight:600;padding:3px 10px;border-radius:12px}.fb-green{background:rgba(34,197,94,0.1);color:var(--accent-green);border:1px solid rgba(34,197,94,0.2)}.fb-gold{background:rgba(251,191,36,0.1);color:#fbbf24;border:1px solid rgba(251,191,36,0.2)}.fb-teal{background:rgba(16,185,129,0.1);color:var(--accent-teal);border:1px solid rgba(16,185,129,0.2)}.age-badge{background:rgba(248,113,113,0.12);border:1px solid rgba(248,113,113,0.3);color:#f87171;font-weight:700;font-size:0.78rem;padding:3px 10px;border-radius:8px}.particle{position:absolute;border-radius:50%;opacity:0.12;animation:float-up linear infinite;pointer-events:none}@keyframes float-up{0%{transform:translateY(0) scale(1);opacity:0.12}100%{transform:translateY(-120px) scale(0.4);opacity:0}}@media (max-width:576px){.error-title{font-size:1.3rem}.quick-section{padding:36px 0}}html,body{overflow-x:clip;width:100%}