:root{
  --navy:#061b31;
  --navy2:#082946;
  --blue:#1598f7;
  --cyan:#5ed7ff;
  --text:#0a1730;
  --muted:#64748b;
  --card:#ffffff;
  --soft:#eef6ff;
  --shadow:0 18px 45px rgba(2,20,45,.15);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f5f8fc;color:var(--text);overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 12% 10%,rgba(21,152,247,.10),transparent 32%),radial-gradient(circle at 88% 18%,rgba(94,215,255,.08),transparent 28%);z-index:-1}
.wrap{width:min(1180px,calc(100% - 36px));margin:auto}
.topbar{background:rgba(6,27,49,.94);height:82px;display:flex;align-items:center;position:sticky;top:0;z-index:50;box-shadow:0 12px 35px rgba(0,0,0,.20);backdrop-filter:blur(14px);border-bottom:1px solid rgba(255,255,255,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px}.logo img{width:100px;display:block;filter:drop-shadow(0 8px 16px rgba(0,0,0,.20))}.menu{display:flex;gap:22px;margin:0;padding:0;list-style:none;align-items:center}.menu a{color:#edf7ff;text-decoration:none;text-transform:uppercase;font-size:13px;font-weight:800;letter-spacing:.2px;position:relative;padding:31px 0}.menu a::after{content:"";position:absolute;left:0;right:0;bottom:22px;height:2px;background:var(--blue);transform:scaleX(0);transform-origin:left;transition:.25s}.menu a:hover::after,.menu a.active::after{transform:scaleX(1)}.menu a.active,.blue{color:var(--blue)}
.phone{background:linear-gradient(135deg,#25a9ff,#0877d6);color:#fff;text-decoration:none;font-weight:900;border-radius:999px;padding:12px 19px;box-shadow:0 10px 24px rgba(21,152,247,.34);white-space:nowrap}.hamburger{display:none;background:rgba(255,255,255,.08);color:white;border:1px solid rgba(255,255,255,.15);border-radius:12px;font-size:25px;width:46px;height:42px;cursor:pointer}
.hero{position:relative;min-height:580px;overflow:hidden;background:#061b31}.hero-bg{position:absolute;inset:0;background:linear-gradient(90deg,rgba(3,18,34,.98) 0%,rgba(5,25,45,.88) 35%,rgba(5,25,45,.40) 70%,rgba(5,25,45,.76) 100%),url("images/hero-villa.jpg") center/cover no-repeat;transform:scale(1.02)}.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 68%,#f5f8fc 100%)}
.hero-inner{position:relative;min-height:580px;display:flex;align-items:center;justify-content:space-between;gap:34px;padding:34px 0}.hero-copy{max-width:600px;color:white}.small{display:inline-flex;padding:9px 14px;border-radius:999px;background:rgba(21,152,247,.14);border:1px solid rgba(94,215,255,.25);text-transform:uppercase;font-weight:900;letter-spacing:1.4px;font-size:14px;color:#dff5ff}h1{margin:18px 0 10px;font-size:clamp(44px,5vw,70px);line-height:.98;text-transform:uppercase;letter-spacing:.5px}h1 span{color:var(--cyan);text-shadow:0 0 28px rgba(94,215,255,.28)}.line{width:84px;height:5px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:999px;margin:24px 0}.desc{font-size:19px;line-height:1.72;color:#e8f4ff}.actions{display:flex;gap:16px;margin-top:30px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:14px;text-decoration:none;font-weight:900;text-transform:uppercase;font-size:14px;padding:16px 24px;transition:.25s}.btn:hover{transform:translateY(-2px)}.primary{background:linear-gradient(135deg,#25a9ff,#0877d6);color:white;box-shadow:0 14px 28px rgba(21,152,247,.28)}.outline{border:1px solid rgba(255,255,255,.68);color:white;background:rgba(5,20,38,.28);backdrop-filter:blur(8px);min-width:154px}
.benefit-box{width:310px;background:rgba(8,35,61,.72);border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(14px);border-radius:24px;color:white;padding:18px;box-shadow:0 24px 60px rgba(0,0,0,.25)}.benefit-box div{display:grid;grid-template-columns:46px 1fr;gap:0 14px;padding:15px 10px;border-bottom:1px solid rgba(255,255,255,.10)}.benefit-box div:last-child{border:0}.benefit-box i{grid-row:span 2;width:46px;height:46px;border-radius:16px;background:linear-gradient(135deg,rgba(94,215,255,.25),rgba(255,255,255,.08));display:grid;place-items:center;font-style:normal;font-size:23px}.benefit-box strong{text-transform:uppercase}.benefit-box span{font-size:13px;color:#dcebf7;line-height:1.45}
.solution-strip{background:white;box-shadow:0 12px 32px rgba(2,20,45,.07);position:relative;z-index:2}.solution-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:15px;padding:24px 0}.solution{background:#fff;border:1px solid #e5eef8;border-radius:20px;padding:18px 14px;text-align:center;box-shadow:0 8px 24px rgba(2,20,45,.05);transition:.25s}.solution:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.solution b{width:56px;height:56px;margin:0 auto 12px;border:1px solid #d6e4f6;border-radius:18px;display:grid;place-items:center;font-size:28px;background:#f4f9ff}.solution h3{margin:0 0 8px;font-size:13px;line-height:1.35;text-transform:uppercase}.solution p{margin:0;color:#526175;font-size:13px;line-height:1.45}
.about-process{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;background:linear-gradient(135deg,#061b31 0%,#082946 100%);color:white;padding:72px max(24px,calc((100vw - 1180px)/2 + 18px));align-items:start}.about-left{display:grid;grid-template-columns:1fr;gap:22px}.about-left .content{padding:0;max-width:560px}.about-left h2,.right-panel h2,.extra h2,.projects h2{font-size:clamp(28px,3vw,42px);margin:10px 0 18px;text-transform:uppercase;line-height:1.14}.about-left p:not(.blue){line-height:1.75;color:#e8f3fb;font-size:16px}.about-left img{width:100%;height:auto;max-height:360px;object-fit:cover;border-radius:28px;box-shadow:0 28px 60px rgba(0,0,0,.32);border:1px solid rgba(255,255,255,.12)}.numbers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:0;background:transparent}.numbers div{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:18px;padding:16px}.numbers b{font-size:22px;color:white;display:block}.numbers span{font-size:12px;color:#cfe3f5;line-height:1.35}.right-panel{background:transparent;display:grid;gap:22px}.process-card{padding:28px;background:rgba(255,255,255,.055);border:1px solid rgba(94,215,255,.22);border-radius:28px;box-shadow:0 24px 60px rgba(0,0,0,.22)}.process-card .blue{margin-top:0}.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:10px;padding:0;border:0;background:transparent}.steps div{text-align:center;text-transform:uppercase;font-weight:800;font-size:11px;position:relative;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.10);border-radius:18px;padding:17px 6px;min-height:126px}.steps div:not(:last-child)::after{content:"→";position:absolute;right:-14px;top:48px;color:var(--cyan);font-size:20px;z-index:2}.steps i{display:block;font-style:normal;font-size:25px;margin-bottom:9px}.steps b{display:block;color:var(--cyan);font-size:17px;margin-bottom:8px}.steps span{line-height:1.35}.consult-form{background:white;color:#0b1730;padding:28px;border-radius:28px;box-shadow:0 26px 65px rgba(0,0,0,.25)}.consult-form h3{text-transform:uppercase;color:#07316b;margin:0 0 16px}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.form-grid select,.form-grid button{grid-column:auto}input,select,button{height:46px;border:1px solid #d8e1ed;border-radius:12px;padding:0 15px;font-size:14px;outline:none}input:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(21,152,247,.12)}button{background:linear-gradient(135deg,#25a9ff,#0877d6);color:white;border:0;text-transform:uppercase;font-weight:900;cursor:pointer}
.extra,.projects{padding:72px 0}.extra h2,.projects h2{color:#061b31}.package-grid,.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.package-grid article{background:white;border-radius:24px;padding:28px;box-shadow:var(--shadow);border:1px solid #e6eef8;position:relative;overflow:hidden}.package-grid article::before{content:"";position:absolute;left:0;top:0;width:100%;height:5px;background:linear-gradient(90deg,var(--blue),var(--cyan))}.package-grid p{line-height:1.65;color:#526175}.package-grid strong{color:var(--blue);font-size:22px}.project-grid div{min-height:200px;border-radius:24px;background:linear-gradient(135deg,#061b31,#0d76b7);color:white;display:flex;align-items:flex-end;padding:28px;font-size:24px;font-weight:900;box-shadow:var(--shadow)}footer{background:#061b31;color:#d9e8f8;text-align:center;padding:34px 16px}footer img{width:108px}
.control-toggle{position:fixed;right:22px;bottom:22px;z-index:80;border:0;border-radius:999px;padding:15px 20px;background:linear-gradient(135deg,#25a9ff,#0877d6);color:#fff;font-weight:900;box-shadow:0 16px 36px rgba(21,152,247,.38);cursor:pointer}.control-panel{position:fixed;right:22px;bottom:86px;width:315px;max-width:calc(100vw - 34px);z-index:79;transform:translateY(20px) scale(.96);opacity:0;pointer-events:none;transition:.25s}.control-panel.show{transform:translateY(0) scale(1);opacity:1;pointer-events:auto}.phone-ui{border:9px solid #07182b;border-radius:36px;background:linear-gradient(180deg,#0b2744,#061a30);box-shadow:0 28px 70px rgba(0,0,0,.35);overflow:hidden;color:#fff}.phone-head{padding:20px 20px 16px;background:linear-gradient(135deg,rgba(37,169,255,.26),rgba(255,255,255,.06));display:flex;align-items:center;justify-content:space-between}.phone-head b{font-size:18px}.phone-head span{display:block;color:#cfe3f5;font-size:12px;margin-top:3px}.close-panel{border:0;background:rgba(255,255,255,.14);color:white;width:34px;height:34px;border-radius:50%;cursor:pointer;padding:0}.device-list{padding:16px;display:grid;gap:12px}.device{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.10);border-radius:18px;padding:13px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px}.device span{display:block;color:#bcd8f0;font-size:12px;margin-top:3px}.switch{flex:0 0 auto;width:48px;height:27px;background:rgba(255,255,255,.2);border-radius:999px;position:relative;cursor:pointer}.switch::after{content:"";position:absolute;width:21px;height:21px;border-radius:50%;background:white;left:3px;top:3px;transition:.25s}.switch.on{background:linear-gradient(135deg,#25a9ff,#39e58c)}.switch.on::after{left:24px}.phone-foot{padding:0 16px 18px;display:grid;grid-template-columns:1fr 1fr;gap:10px}.phone-foot button{height:42px;border-radius:14px;font-size:12px;padding:0 8px}.phone-foot .ghost{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.13)}
@media(max-width:1080px){.menu{gap:14px}.solution-grid{grid-template-columns:repeat(3,1fr)}.about-process{grid-template-columns:1fr;padding-left:24px;padding-right:24px}.numbers{grid-template-columns:repeat(2,1fr)}}
@media(max-width:900px){.hamburger{display:grid;place-items:center}.menu{display:none;position:absolute;left:18px;right:18px;top:74px;background:rgba(6,27,49,.98);flex-direction:column;padding:20px;border-radius:20px;box-shadow:var(--shadow)}.menu a{padding:8px 0}.open .menu{display:flex}.phone{display:none}.topbar{height:76px}.hero,.hero-inner{min-height:auto}.hero-inner{display:block;padding:70px 0}.benefit-box{width:100%;margin-top:28px}.steps,.form-grid,.package-grid,.project-grid{grid-template-columns:1fr}.steps div{min-height:auto}.steps div:not(:last-child)::after{display:none}.solution-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.wrap{width:min(100% - 28px,1180px)}.logo img{width:90px}.hero-copy h1{font-size:42px}.desc{font-size:16px}.actions{flex-direction:column}.btn{width:100%}.solution-grid,.numbers{grid-template-columns:1fr}.about-process{padding-top:46px;padding-bottom:46px}.control-toggle{right:14px;bottom:14px}.control-panel{right:14px;bottom:76px}.phone-ui{border-width:7px;border-radius:30px}}


/* Modal mô phỏng Smart Home */
body.modal-open{overflow:hidden}
.control-toggle{z-index:120}
.smart-modal{position:fixed;inset:0;z-index:999;display:flex;align-items:center;justify-content:center;padding:22px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .28s ease,visibility .28s ease}
.smart-modal.show{opacity:1;visibility:visible;pointer-events:auto}
.smart-modal-backdrop{position:absolute;inset:0;background:rgba(2,10,22,.74);backdrop-filter:blur(10px)}
.smart-modal-box{position:relative;width:min(1280px,96vw);height:min(760px,92vh);background:#07182b;border:1px solid rgba(94,215,255,.25);border-radius:26px;overflow:hidden;box-shadow:0 34px 90px rgba(0,0,0,.55);transform:translateY(18px) scale(.97);transition:transform .28s ease}
.smart-modal.show .smart-modal-box{transform:translateY(0) scale(1)}
.smart-modal-head{height:64px;padding:0 18px 0 22px;background:linear-gradient(135deg,#061b31,#0b3c63);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid rgba(255,255,255,.10)}
.smart-modal-head b{display:block;font-size:18px;text-transform:uppercase;letter-spacing:.3px}
.smart-modal-head span{display:block;font-size:12px;color:#cfe3f5;margin-top:4px}
.smart-modal-close{width:40px;height:40px;border:0;border-radius:50%;background:rgba(255,255,255,.14);color:#fff;font-size:28px;line-height:1;cursor:pointer;padding:0}
.smart-modal-close:hover{background:rgba(255,255,255,.24)}
.smart-modal-frame{display:block;width:100%;height:calc(100% - 64px);border:0;background:#0d1520}
@media(max-width:700px){.smart-modal{padding:10px}.smart-modal-box{width:100%;height:94vh;border-radius:18px}.smart-modal-head{height:58px;padding:0 12px 0 14px}.smart-modal-head b{font-size:15px}.smart-modal-head span{display:none}.smart-modal-frame{height:calc(100% - 58px)}}

/* =========================================================
   FINAL RESPONSIVE FIX - chi ap dung mobile/tablet, khong anh huong PC
   ========================================================= */
@media (max-width: 900px){
  html, body{
    width:100%;
    overflow-x:hidden;
  }

  .wrap{
    width:100%;
    max-width:100%;
    padding-left:14px;
    padding-right:14px;
  }

  img, video, iframe{
    max-width:100%;
  }

  .hero-inner{
    display:block;
    min-height:auto;
    padding:54px 0 42px;
  }

  .hero-copy,
  .benefit-box,
  .about-left,
  .right-panel,
  .process-card,
  .consult-form{
    width:100%;
    min-width:0;
  }

  .about-process{
    grid-template-columns:1fr;
    padding:46px 14px;
    overflow:hidden;
  }

  .steps,
  .form-grid,
  .package-grid,
  .project-grid,
  .solution-grid,
  .numbers{
    grid-template-columns:1fr !important;
  }

  .steps div:not(:last-child)::after{
    display:none;
  }

  .form-grid > div,
  .form-grid textarea,
  .form-grid button{
    grid-column:1 / -1 !important;
  }
}

@media (max-width: 600px){
  .topbar{
    height:68px;
  }

  .nav{
    gap:10px;
  }

  .logo img{
    width:82px;
  }

  .hamburger{
    width:42px;
    height:38px;
    font-size:22px;
  }

  .menu{
    left:12px;
    right:12px;
    top:66px;
  }

  .hero{
    min-height:auto;
  }

  h1,
  .hero-copy h1{
    font-size:36px;
    line-height:1.04;
  }

  .desc{
    font-size:15px;
    line-height:1.65;
  }

  .actions{
    flex-direction:column;
  }

  .btn{
    width:100%;
  }

  .solution-grid{
    gap:12px;
  }

  .about-process{
    padding:36px 12px;
  }

  .about-left h2,
  .right-panel h2,
  .extra h2,
  .projects h2{
    font-size:28px;
  }

  .about-left img{
    border-radius:20px;
  }

  .process-card,
  .consult-form{
    padding:18px;
    border-radius:22px;
  }

  .steps div{
    min-height:auto;
    padding:18px 10px;
  }

  .form-grid{
    gap:10px;
  }

  input,
  select,
  textarea,
  button{
    width:100%;
  }

  textarea{
    min-height:110px;
    padding-top:12px;
    resize:vertical;
  }

  .control-toggle{
    right:12px;
    bottom:12px;
    padding:13px 16px;
  }

  .control-panel{
    right:10px;
    left:10px;
    bottom:70px;
    width:auto;
    max-width:none;
  }

  .phone-ui{
    border-width:6px;
    border-radius:26px;
  }

  .phone-foot{
    grid-template-columns:1fr;
  }
}

/* Form textarea dong bo giao dien */
textarea{
  min-height:96px;
  border:1px solid #d8e1ed;
  border-radius:12px;
  padding:12px 15px;
  font-size:14px;
  font-family:Arial,Helvetica,sans-serif;
  outline:none;
  resize:vertical;
}

textarea:focus{
  border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(21,152,247,.12);
}

/* Modal dang ky tu van */
#consultModal .smart-modal-box{
  width:min(720px,96vw);
  height:min(680px,92vh);
}

@media(max-width:700px){
  body.modal-open{
    overflow:hidden;
  }

  .smart-modal{
    padding:6px;
    align-items:center;
    justify-content:center;
  }

  .smart-modal-box,
  #consultModal .smart-modal-box{
    width:100%;
    max-width:100%;
    height:94vh;
    max-height:94vh;
    border-radius:16px;
    overflow:hidden;
  }

  .smart-modal-head{
    height:56px;
    padding:0 12px;
  }

  .smart-modal-head b{
    font-size:14px;
  }

  .smart-modal-head span{
    display:none;
  }

  .smart-modal-close{
    width:36px;
    height:36px;
    font-size:24px;
    flex:0 0 auto;
  }

  .smart-modal-frame{
    display:block;
    width:100%;
    height:calc(100% - 56px);
    border:0;
  }
}