:root{
  --navy:#0a2050;--blue:#1565c0;--blue2:#1976d2;--blue3:#2196f3;--sky:#e3f0ff;--sky2:#f0f7ff;
  --text:#1a2535;--text2:#3a4f66;--text3:#6b7e95;
  --white:#fff;--gray1:#f5f8fd;--gray2:#e8eef7;--gray3:#c8d4e4;
  --sans:'Nunito Sans',sans-serif;--head:'Rajdhani',sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{background:var(--white);color:var(--text);font-family:var(--sans);line-height:1.6;overflow-x:hidden;}
a{text-decoration:none;color:inherit;}

/* NAV */
.nav{position:sticky;top:0;z-index:900;background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--gray2);backdrop-filter:blur(10px);
  box-shadow:0 2px 12px rgba(10,32,80,.08);}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 28px;height:70px;
  display:flex;align-items:center;gap:24px;}
.nav-brand{display:flex;align-items:center;gap:11px;flex-shrink:0;cursor:pointer;}
.nav-logo{width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;}
.nav-logo img{width:100%;height:100%;object-fit:contain;display:block;}
.nav-name{font-family:var(--head);font-size:1.5rem;font-weight:700;color:var(--navy);letter-spacing:.5px;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1;}
.nav-link{padding:8px 13px;border-radius:7px;font-size:.84rem;font-weight:700;
  color:var(--text2);transition:all .15s;cursor:pointer;}
.nav-link:hover{background:var(--sky);color:var(--blue);}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.btn-help{padding:9px 18px;border-radius:8px;font-size:.82rem;font-weight:700;
  border:2px solid var(--blue);color:var(--blue);background:transparent;cursor:pointer;
  font-family:var(--sans);transition:all .15s;}
.btn-help:hover{background:var(--sky);}
.btn-login{padding:9px 20px;border-radius:8px;font-size:.82rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;border:none;
  cursor:pointer;font-family:var(--sans);box-shadow:0 3px 12px rgba(21,101,192,.3);
  transition:all .15s;display:flex;align-items:center;gap:7px;}
.btn-login:hover{transform:translateY(-2px);box-shadow:0 5px 18px rgba(21,101,192,.4);}
.btn-login svg{width:15px;height:15px;}

/* HERO */
.hero{background:linear-gradient(150deg,#0a2050 0%,#1255a8 45%,#1976d2 75%,#2196f3 100%);
  padding:100px 28px 110px;position:relative;overflow:hidden;}
.hero::before{content:'';position:absolute;inset:0;
  background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/svg%3E");}
.hero-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;position:relative;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.2);border-radius:20px;padding:5px 14px;
  font-size:.72rem;font-weight:700;color:rgba(255,255,255,.9);letter-spacing:1px;
  text-transform:uppercase;margin-bottom:20px;}
.tag-dot{width:7px;height:7px;border-radius:50%;background:#4ade80;box-shadow:0 0 8px #4ade80;}
.hero h1{font-family:var(--head);font-size:3.2rem;font-weight:700;color:#fff;
  line-height:1.1;letter-spacing:-.5px;margin-bottom:20px;}
.hero h1 span{color:#64b5f6;}
.hero-sub{font-size:1.05rem;color:rgba(255,255,255,.8);margin-bottom:36px;max-width:480px;line-height:1.75;}
.hero-btns{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.hbtn-p{padding:14px 30px;border-radius:10px;font-size:.95rem;font-weight:800;
  background:#fff;color:var(--blue);border:none;cursor:pointer;font-family:var(--head);
  box-shadow:0 4px 20px rgba(0,0,0,.15);transition:all .2s;}
.hbtn-p:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(0,0,0,.2);}
.hbtn-s{padding:14px 28px;border-radius:10px;font-size:.95rem;font-weight:700;
  background:rgba(255,255,255,.1);color:#fff;border:2px solid rgba(255,255,255,.3);
  cursor:pointer;font-family:var(--head);transition:all .2s;}
.hbtn-s:hover{background:rgba(255,255,255,.18);}
.hero-stats{display:flex;gap:32px;margin-top:44px;flex-wrap:wrap;}
.h-stat .num{font-family:var(--head);font-size:1.9rem;font-weight:700;color:#fff;}
.h-stat .lbl{font-size:.72rem;color:rgba(255,255,255,.6);margin-top:2px;}

/* HERO VISUAL CARDS */
.hero-visual{display:flex;flex-direction:column;gap:14px;}
.hv-card{background:rgba(255,255,255,.1);backdrop-filter:blur(10px);
  border:1px solid rgba(255,255,255,.18);border-radius:14px;padding:18px 20px;}
.hv-title{font-size:.67rem;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;
  color:rgba(255,255,255,.55);margin-bottom:12px;}
.sr{display:flex;align-items:center;justify-content:space-between;padding:6px 0;
  border-bottom:1px solid rgba(255,255,255,.07);}
.sr:last-child{border-bottom:none;}
.sr-l{display:flex;align-items:center;gap:9px;}
.sr-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.sr-n{font-size:.77rem;color:rgba(255,255,255,.8);}
.sr-v{font-size:.85rem;font-weight:700;color:#fff;font-family:monospace;}
.sr-v.ok{color:#4ade80;}
.sr-v.alarm{color:#f87171;animation:blink 1.5s infinite;}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.5}}
.alarm-bar{background:rgba(248,113,113,.15);border:1px solid rgba(248,113,113,.35);
  border-radius:7px;padding:10px 13px;display:flex;align-items:center;gap:9px;margin-top:10px;}
.alarm-bar .ad{width:8px;height:8px;border-radius:50%;background:#f87171;
  box-shadow:0 0 8px #f87171;flex-shrink:0;animation:blink 1s infinite;}
.alarm-bar span{font-size:.74rem;color:rgba(255,255,255,.88);}

/* SECTIONS */
.sec{padding:80px 28px;}
.sec-in{max-width:1200px;margin:0 auto;}
.sec-tag{font-size:.7rem;font-weight:800;letter-spacing:2px;text-transform:uppercase;color:var(--blue2);margin-bottom:10px;}
.sec-title{font-family:var(--head);font-size:2.3rem;font-weight:700;color:var(--navy);line-height:1.15;margin-bottom:14px;}
.sec-sub{font-size:1rem;color:var(--text3);max-width:560px;line-height:1.75;}

/* HOW */
.how-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;margin-top:50px;}
.how-card{background:#fff;border:1.5px solid var(--gray2);border-radius:16px;padding:28px;
  position:relative;overflow:hidden;transition:all .2s;}
.how-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--blue),var(--blue3));}
.how-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(21,101,192,.1);}
.how-num{font-family:var(--head);font-size:2.8rem;font-weight:700;color:var(--sky);line-height:1;margin-bottom:14px;}
.how-icon{width:48px;height:48px;border-radius:12px;margin-bottom:14px;
  background:linear-gradient(135deg,var(--sky),var(--sky2));
  display:flex;align-items:center;justify-content:center;}
.how-icon svg{width:26px;height:26px;color:var(--blue);}
.how-card h3{font-family:var(--head);font-size:1.2rem;font-weight:700;color:var(--navy);margin-bottom:8px;}
.how-card p{font-size:.83rem;color:var(--text3);line-height:1.7;}

/* FEATURES */
.feat-sec{background:var(--gray1);}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:48px;}
.feat-card{background:#fff;border-radius:14px;padding:24px;border:1px solid var(--gray2);transition:all .2s;}
.feat-card:hover{transform:translateY(-3px);box-shadow:0 8px 28px rgba(21,101,192,.09);}
.fi{width:46px;height:46px;border-radius:12px;margin-bottom:14px;display:flex;align-items:center;justify-content:center;}
.fi.b{background:linear-gradient(135deg,#e3f0ff,#c7dfff);}
.fi.t{background:linear-gradient(135deg,#e0f7f4,#b2dfdb);}
.fi.g{background:linear-gradient(135deg,#e8f5e9,#c8e6c9);}
.fi.a{background:linear-gradient(135deg,#fff8e1,#ffecb3);}
.fi.p{background:linear-gradient(135deg,#f3e5f5,#e1bee7);}
.fi.r{background:linear-gradient(135deg,#ffebee,#ffcdd2);}
.fi svg{width:24px;height:24px;}
.feat-card h3{font-size:.95rem;font-weight:800;color:var(--navy);margin-bottom:6px;}
.feat-card p{font-size:.8rem;color:var(--text3);line-height:1.7;}

/* PRODUCTS */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px;}
.prod-card{border-radius:14px;overflow:hidden;border:1px solid var(--gray2);background:var(--gray1);transition:all .2s;}
.prod-card:hover{transform:translateY(-4px);box-shadow:0 12px 36px rgba(0,0,0,.09);}
.prod-img{height:200px;display:flex;align-items:center;justify-content:center;
  position:relative;overflow:hidden;}
.prod-img.c1{background:linear-gradient(135deg,#e3f0ff,#c7dfff);}
.prod-img.c2{background:linear-gradient(135deg,#e0f7f4,#b2dfdb);}
.prod-img.c3{background:linear-gradient(135deg,#fff8e1,#ffe082);}
.prod-overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;}
.seddt-logo-badge{background:linear-gradient(135deg,var(--navy),var(--blue2));color:#fff;
  font-family:var(--head);font-size:1.1rem;font-weight:700;padding:6px 16px;
  border-radius:8px;letter-spacing:1px;box-shadow:0 3px 10px rgba(0,0,0,.2);}
.equip-type{font-size:.68rem;font-weight:700;color:rgba(0,0,0,.45);letter-spacing:1.5px;text-transform:uppercase;}
.prod-info{padding:14px 16px;background:#fff;}
.prod-info h4{font-size:.9rem;font-weight:800;color:var(--navy);margin-bottom:4px;}
.prod-info p{font-size:.76rem;color:var(--text3);}

/* TESTIMONIALS */
.test-sec{background:linear-gradient(150deg,#0a2050 0%,#1565c0 100%);padding:80px 28px;}
.test-in{max-width:1200px;margin:0 auto;}
.test-sec .sec-tag{color:#93c5fd;}
.test-sec .sec-title{color:#fff;}
.test-sec .sec-sub{color:rgba(255,255,255,.65);}
.test-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:44px;}
.test-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.13);
  border-radius:14px;padding:24px;transition:all .2s;}
.test-card:hover{background:rgba(255,255,255,.12);}
.stars{color:#fbbf24;font-size:.95rem;letter-spacing:2px;margin-bottom:14px;}
.test-text{font-size:.86rem;color:rgba(255,255,255,.86);line-height:1.75;margin-bottom:18px;font-style:italic;}
.test-auth{display:flex;align-items:center;gap:11px;}
.ta-av{width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-family:var(--head);font-size:.95rem;font-weight:700;color:#fff;flex-shrink:0;}
.ta-name{font-size:.82rem;font-weight:700;color:#fff;}
.ta-role{font-size:.7rem;color:rgba(255,255,255,.5);}

/* CTA */
.cta-sec{padding:90px 28px;background:var(--gray1);text-align:center;}
.cta-btns{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;margin-top:32px;}
.cta-p{padding:15px 36px;border-radius:10px;font-size:1rem;font-weight:800;
  background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;border:none;
  cursor:pointer;font-family:var(--head);box-shadow:0 4px 18px rgba(21,101,192,.3);transition:all .2s;}
.cta-p:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(21,101,192,.4);}
.cta-s{padding:15px 30px;border-radius:10px;font-size:.95rem;font-weight:700;
  border:2px solid var(--blue);color:var(--blue);background:transparent;cursor:pointer;
  font-family:var(--head);transition:all .2s;}
.cta-s:hover{background:var(--sky);}

/* FOOTER */
.footer{background:var(--navy);padding:52px 28px 28px;}
.footer-in{max-width:1200px;margin:0 auto;}
.f-top{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px;}
.f-brand .fn{font-family:var(--head);font-size:1.4rem;font-weight:700;color:#fff;margin-bottom:8px;letter-spacing:.5px;}
.f-brand .fn span{color:#64b5f6;}
.f-brand p{font-size:.78rem;color:rgba(255,255,255,.45);line-height:1.7;max-width:240px;}
.f-col h4{font-size:.67rem;font-weight:800;letter-spacing:2px;text-transform:uppercase;
  color:rgba(255,255,255,.35);margin-bottom:14px;}
.f-col a{display:block;font-size:.8rem;color:rgba(255,255,255,.55);margin-bottom:8px;cursor:pointer;transition:color .15s;}
.f-col a:hover{color:#fff;}
.f-bot{border-top:1px solid rgba(255,255,255,.07);padding-top:22px;}
.f-bot p{font-size:.7rem;color:rgba(255,255,255,.3);}

/* MODAL */
.mo{position:fixed;inset:0;background:rgba(10,32,80,.6);display:flex;align-items:center;
  justify-content:center;z-index:9999;backdrop-filter:blur(6px);
  opacity:0;pointer-events:none;transition:opacity .2s;}
.mo.open{opacity:1;pointer-events:all;}
.md{background:#fff;border-radius:18px;padding:36px;width:480px;max-width:95vw;
  transform:translateY(20px);transition:transform .2s;box-shadow:0 24px 60px rgba(0,0,0,.2);}
.mo.open .md{transform:translateY(0);}
.md-title{font-family:var(--head);font-size:1.5rem;font-weight:700;color:var(--navy);margin-bottom:6px;}
.md-sub{font-size:.82rem;color:var(--text3);margin-bottom:22px;}
.h-opts{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-bottom:22px;}
.h-opt{border:2px solid var(--gray2);border-radius:11px;padding:14px;cursor:pointer;
  transition:all .15s;text-align:center;}
.h-opt:hover,.h-opt.sel{border-color:var(--blue);background:var(--sky);}
.h-opt .oi{font-size:1.5rem;margin-bottom:5px;}
.h-opt h4{font-size:.8rem;font-weight:800;color:var(--navy);}
.h-opt p{font-size:.7rem;color:var(--text3);margin-top:2px;}
.fl{display:block;font-size:.68rem;font-weight:700;letter-spacing:.5px;text-transform:uppercase;
  color:var(--text3);margin-bottom:5px;}
.fi2{width:100%;border:1.5px solid var(--gray2);border-radius:8px;padding:10px 13px;
  font-size:.88rem;font-family:var(--sans);color:var(--text);outline:none;transition:border-color .15s;margin-bottom:14px;}
.fi2:focus{border-color:var(--blue);}
.fi2.ta{resize:vertical;min-height:88px;}
.md-act{display:flex;justify-content:space-between;align-items:center;margin-top:8px;}
.md-cls{background:none;border:none;color:var(--text3);cursor:pointer;font-size:.82rem;font-family:var(--sans);}
.md-sub-btn{padding:11px 24px;border-radius:8px;font-size:.88rem;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--blue2));color:#fff;border:none;cursor:pointer;font-family:var(--sans);}

/* TOAST */
.toast{position:fixed;bottom:24px;right:24px;z-index:9999;background:var(--navy);color:#fff;
  padding:12px 20px;border-radius:10px;font-size:.82rem;box-shadow:0 6px 24px rgba(0,0,0,.2);
  transform:translateY(20px);opacity:0;transition:all .3s;pointer-events:none;}
.toast.show{transform:translateY(0);opacity:1;}

@media(max-width:900px){
  .hero-inner,.f-top{grid-template-columns:1fr;}
  .hero-visual{display:none;}
  .how-grid,.feat-grid,.prod-grid,.test-grid{grid-template-columns:1fr 1fr;}
}
@media(max-width:600px){
  .how-grid,.feat-grid,.prod-grid,.test-grid{grid-template-columns:1fr;}
  .nav-links{display:none;}
  .hero h1{font-size:2.1rem;}
}