:root {
      --black: #07090d;
      --bg-1: #0a0d12;
      --bg-2: #0d1117;
      --anthracite: #161b22;
      --anthracite-2: #1b212b;
      --silver: #c7d0dc;
      --silver-bright: #eef3f9;
      --silver-mute: #8893a3;
      --blue: #1e90ff;
      --blue-bright: #41a6ff;
      --blue-deep: #0a6bd4;
      --glass: rgba(22, 27, 34, 0.55);
      --glass-line: rgba(120, 170, 230, 0.18);
      --glow: rgba(30, 144, 255, 0.35);
      --whatsapp: #25d366;
      --r: 20px;
      --maxw: 1180px;
    }

    * { box-sizing: border-box; }
    html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

    body {
      margin: 0;
      font-family: 'Manrope', system-ui, sans-serif;
      background: var(--black);
      color: var(--silver);
      line-height: 1.7;
      font-weight: 400;
      letter-spacing: 0.1px;
      overflow-x: hidden;
    }

    /* ---------- Animated engineering background ---------- */
    .bg-fx {
      position: fixed;
      inset: 0;
      z-index: -2;
      background:
        radial-gradient(1200px 800px at 75% -5%, rgba(30,144,255,0.10), transparent 60%),
        radial-gradient(900px 700px at 10% 110%, rgba(30,144,255,0.08), transparent 55%),
        linear-gradient(180deg, #07090d 0%, #0a0d12 45%, #07090d 100%);
    }
    .bg-fx::before {
      /* faint technical grid */
      content: '';
      position: absolute;
      inset: -2px;
      background-image:
        linear-gradient(rgba(120,150,190,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120,150,190,0.05) 1px, transparent 1px);
      background-size: 64px 64px;
      mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 35%, transparent 85%);
      -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 35%, transparent 85%);
    }
    .orb {
      position: fixed;
      border-radius: 50%;
      filter: blur(70px);
      z-index: -1;
      opacity: 0.5;
      pointer-events: none;
      will-change: transform;
    }
    .orb.a { width: 460px; height: 460px; top: -120px; right: -80px;
      background: radial-gradient(circle, rgba(30,144,255,0.45), transparent 70%);
      animation: drift1 22s ease-in-out infinite; }
    .orb.b { width: 380px; height: 380px; top: 50%; left: -140px;
      background: radial-gradient(circle, rgba(20,110,210,0.35), transparent 70%);
      animation: drift2 28s ease-in-out infinite; }
    @keyframes drift1 {
      0%,100% { transform: translate(0,0); }
      50% { transform: translate(-60px, 80px); }
    }
    @keyframes drift2 {
      0%,100% { transform: translate(0,0); }
      50% { transform: translate(80px, -60px); }
    }

    /* ---------- Layout ---------- */
    .wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
    section { padding: 96px 0; position: relative; }
    .eyebrow {
      font-family: 'Chakra Petch', sans-serif;
      font-weight: 600;
      font-size: 0.78rem;
      letter-spacing: 4px;
      text-transform: uppercase;
      color: var(--blue-bright);
      display: inline-flex;
      align-items: center;
      gap: 10px;
      margin: 0 0 18px;
    }
    .eyebrow::before {
      content: '';
      width: 26px; height: 1px;
      background: linear-gradient(90deg, var(--blue), transparent);
    }
    h1, h2, h3 { font-family: 'Sora', sans-serif; color: var(--silver-bright); letter-spacing: -0.5px; }
    h2 {
      font-size: clamp(1.9rem, 4.4vw, 3rem);
      font-weight: 700;
      line-height: 1.08;
      margin: 0 0 18px;
    }
    .lead { font-size: 1.08rem; color: var(--silver); max-width: 60ch; }
    .metal {
      background: linear-gradient(180deg, #ffffff 0%, #cdd7e3 45%, #8b97a6 100%);
      -webkit-background-clip: text; background-clip: text;
      -webkit-text-fill-color: transparent; color: transparent;
    }
    .blue-text { color: var(--blue-bright); }

    /* ---------- Glass card ---------- */
    .glass {
      background: var(--glass);
      backdrop-filter: blur(18px) saturate(130%);
      -webkit-backdrop-filter: blur(18px) saturate(130%);
      border: 1px solid var(--glass-line);
      border-radius: var(--r);
      box-shadow:
        0 30px 60px -30px rgba(0,0,0,0.8),
        inset 0 1px 0 rgba(255,255,255,0.05);
      position: relative;
      overflow: hidden;
    }
    .glass::after {
      content: '';
      position: absolute; inset: 0;
      border-radius: inherit;
      padding: 1px;
      background: linear-gradient(140deg, rgba(65,166,255,0.55), transparent 40%, transparent 65%, rgba(65,166,255,0.25));
      -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
      -webkit-mask-composite: xor; mask-composite: exclude;
      pointer-events: none;
      opacity: 0.7;
    }
    .glow-hover { transition: transform .45s cubic-bezier(.2,.7,.2,1), box-shadow .45s ease; }
    .glow-hover:hover {
      transform: translateY(-6px);
      box-shadow:
        0 40px 80px -30px rgba(0,0,0,0.85),
        0 0 0 1px rgba(65,166,255,0.4),
        0 0 50px -8px var(--glow);
    }

    /* ---------- Buttons ---------- */
    .btn {
      display: inline-flex; align-items: center; gap: 10px;
      padding: 15px 28px;
      border-radius: 14px;
      text-decoration: none;
      font-family: 'Manrope', sans-serif;
      font-weight: 700;
      font-size: 0.95rem;
      letter-spacing: 0.3px;
      cursor: pointer;
      border: none;
      transition: transform .3s cubic-bezier(.2,.7,.2,1), box-shadow .3s ease, background .3s ease;
      position: relative;
      white-space: nowrap;
    }
    .btn svg { width: 18px; height: 18px; }
    .btn-primary {
      color: #04101f;
      background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep));
      box-shadow: 0 10px 30px -8px var(--glow), inset 0 1px 0 rgba(255,255,255,0.35);
    }
    .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -8px rgba(30,144,255,0.6), inset 0 1px 0 rgba(255,255,255,0.4); }
    .btn-wa {
      color: #04140a;
      background: linear-gradient(135deg, #3ee27e, #1fae52);
      box-shadow: 0 10px 30px -8px rgba(37,211,102,0.45), inset 0 1px 0 rgba(255,255,255,0.35);
    }
    .btn-wa:hover { transform: translateY(-3px); box-shadow: 0 16px 40px -8px rgba(37,211,102,0.6); }
    .btn-ghost {
      color: var(--silver-bright);
      background: rgba(255,255,255,0.03);
      border: 1px solid var(--glass-line);
      backdrop-filter: blur(8px);
    }
    .btn-ghost:hover { transform: translateY(-3px); border-color: rgba(65,166,255,0.55); box-shadow: 0 0 30px -10px var(--glow); }

    /* ---------- Nav ---------- */
    header.nav {
      position: fixed; top: 0; left: 0; right: 0; z-index: 100;
      transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
      border-bottom: 1px solid transparent;
    }
    header.nav.scrolled {
      background: rgba(8,11,16,0.72);
      backdrop-filter: blur(16px) saturate(140%);
      -webkit-backdrop-filter: blur(16px) saturate(140%);
      border-bottom: 1px solid var(--glass-line);
    }
    .nav-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; }
    .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
    .brand img { width: 40px; height: 40px; border-radius: 10px; }
    .brand b { font-family: 'Sora', sans-serif; color: var(--silver-bright); font-weight: 700; letter-spacing: 1px; font-size: 1.05rem; }
    .brand b span { color: var(--blue-bright); }
    .nav-cta { display: flex; gap: 12px; }
    .nav-cta .btn { padding: 11px 20px; font-size: 0.88rem; }

    /* ---------- Hero ---------- */
    .hero { padding: 150px 0 90px; text-align: center; }
    .hero-logo {
      width: min(280px, 70vw);
      height: auto;
      margin: 0 auto 28px;
      display: block;
      border-radius: 24px;
      filter: drop-shadow(0 20px 50px rgba(30,144,255,0.25));
      animation: floatY 7s ease-in-out infinite;
    }
    @keyframes floatY { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
    .hero h1 {
      font-size: clamp(2.4rem, 7vw, 4.8rem);
      font-weight: 800;
      line-height: 1.02;
      margin: 0 auto 20px;
      max-width: 16ch;
    }
    .hero .lead { margin: 0 auto 34px; text-align: center; font-size: clamp(1.05rem,2.4vw,1.25rem); }
    .hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
    .pill-row { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 38px; }
    .pill {
      font-family: 'Chakra Petch', sans-serif;
      font-size: 0.74rem; letter-spacing: 2px; text-transform: uppercase;
      color: var(--silver); padding: 8px 16px; border-radius: 100px;
      border: 1px solid var(--glass-line); background: rgba(255,255,255,0.02);
    }
    .pill b { color: var(--blue-bright); font-weight: 700; }

    /* ---------- Stats strip ---------- */
    .stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; margin-top: 54px; }
    .stat { text-align: center; padding: 26px 14px; }
    .stat .n { font-family: 'Sora', sans-serif; font-weight: 800; font-size: clamp(1.7rem,4vw,2.4rem); }
    .stat .l { font-family: 'Chakra Petch', sans-serif; font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase; color: var(--silver-mute); margin-top: 4px; }

    /* ---------- Featured split ---------- */
    .split { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 40px; align-items: center; }
    .split.rev { grid-template-columns: 0.95fr 1.05fr; }
    .panel-pad { padding: 44px; }
    .feature-visual {
      border-radius: var(--r);
      min-height: 360px;
      display: flex; align-items: center; justify-content: center;
      position: relative; overflow: hidden;
      background:
        radial-gradient(circle at 30% 25%, rgba(30,144,255,0.22), transparent 55%),
        linear-gradient(160deg, #11161e, #0a0d12);
      border: 1px solid var(--glass-line);
    }
    .feature-visual .ring {
      position: absolute; border-radius: 50%; border: 1px solid rgba(65,166,255,0.18);
    }
    .feature-visual .ring.r1 { width: 280px; height: 280px; }
    .feature-visual .ring.r2 { width: 200px; height: 200px; animation: spin 18s linear infinite; border-style: dashed; border-color: rgba(65,166,255,0.25); }
    .feature-visual .ring.r3 { width: 120px; height: 120px; }
    @keyframes spin { to { transform: rotate(360deg); } }
    .feature-visual .core {
      width: 120px; height: 120px; z-index: 2;
      color: var(--blue-bright);
      filter: drop-shadow(0 0 18px rgba(30,144,255,0.5));
    }
    .check-list { list-style: none; padding: 0; margin: 22px 0 0; }
    .check-list li { display: flex; gap: 12px; padding: 9px 0; color: var(--silver); align-items: flex-start; }
    .check-list svg { width: 20px; height: 20px; color: var(--blue-bright); flex-shrink: 0; margin-top: 3px; }

    /* ---------- Service grid ---------- */
    .grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .svc { padding: 32px 28px; }
    .svc .ic {
      width: 52px; height: 52px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
      background: linear-gradient(140deg, rgba(30,144,255,0.18), rgba(30,144,255,0.04));
      border: 1px solid rgba(65,166,255,0.3);
      color: var(--blue-bright); margin-bottom: 20px;
    }
    .svc .ic svg { width: 26px; height: 26px; }
    .svc h3 { font-size: 1.22rem; font-weight: 600; margin: 0 0 10px; }
    .svc p { margin: 0; font-size: 0.96rem; color: var(--silver-mute); }

    /* ---------- Offers ---------- */
    .grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
    .offer { padding: 36px; display: flex; flex-direction: column; }
    .offer .tag { font-family: 'Chakra Petch', sans-serif; font-size: 0.72rem; letter-spacing: 2px; text-transform: uppercase; color: var(--blue-bright); }
    .offer h3 { font-size: 1.5rem; margin: 8px 0 4px; font-weight: 700; }
    .offer .price { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 2.6rem; line-height: 1; margin: 14px 0 4px; }
    .offer .price small { font-family: 'Manrope', sans-serif; font-size: 0.85rem; font-weight: 600; color: var(--silver-mute); letter-spacing: 0.5px; }
    .offer p.sub { color: var(--silver-mute); font-size: 0.92rem; margin: 6px 0 0; }
    .offer .check-list { flex: 1; margin-bottom: 26px; }

    /* ---------- Why choose ---------- */
    .why-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .why { display: flex; gap: 18px; padding: 28px; }
    .why .ic { flex-shrink: 0; width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
      background: linear-gradient(140deg, rgba(30,144,255,0.18), rgba(30,144,255,0.03)); border: 1px solid rgba(65,166,255,0.28); color: var(--blue-bright); }
    .why .ic svg { width: 22px; height: 22px; }
    .why h3 { font-size: 1.12rem; margin: 0 0 6px; font-weight: 600; }
    .why p { margin: 0; font-size: 0.92rem; color: var(--silver-mute); }

    /* ---------- Reviews ---------- */
    .reviews { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
    .review { padding: 30px; display: flex; flex-direction: column; }
    .stars { display: flex; gap: 3px; color: #ffc23d; margin-bottom: 14px; }
    .stars svg { width: 18px; height: 18px; }
    .review p { font-size: 0.98rem; color: var(--silver); flex: 1; margin: 0 0 18px; }
    .review .who { display: flex; align-items: center; gap: 12px; }
    .review .av { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
      font-family: 'Sora', sans-serif; font-weight: 700; color: #04101f;
      background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep)); }
    .review .who b { color: var(--silver-bright); display: block; font-size: 0.95rem; font-family: 'Manrope', sans-serif; }
    .review .who span { font-size: 0.8rem; color: var(--silver-mute); }

    /* ---------- Map ---------- */
    .map-card { padding: 14px; }
    .map-card iframe { width: 100%; height: 420px; border: 0; border-radius: 14px; filter: grayscale(35%) contrast(1.05) brightness(0.9); display: block; }
    .area-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
    .area-tags span { font-size: 0.85rem; padding: 8px 16px; border-radius: 100px; border: 1px solid var(--glass-line); background: rgba(255,255,255,0.02); color: var(--silver); }

    /* ---------- Form ---------- */
    .form-card { padding: 44px; }
    .field { margin-bottom: 18px; }
    .field label { display: block; font-family: 'Chakra Petch', sans-serif; font-size: 0.74rem; letter-spacing: 2px; text-transform: uppercase; color: var(--silver-mute); margin-bottom: 8px; }
    .field input, .field textarea, .field select {
      width: 100%; padding: 15px 16px; border-radius: 12px;
      border: 1px solid var(--glass-line); background: rgba(7,9,13,0.6);
      color: var(--silver-bright); font-family: 'Manrope', sans-serif; font-size: 1rem;
      transition: border-color .25s ease, box-shadow .25s ease;
    }
    .field input:focus, .field textarea:focus, .field select:focus {
      outline: none; border-color: var(--blue); box-shadow: 0 0 0 4px rgba(30,144,255,0.12);
    }
    .field textarea { resize: vertical; min-height: 120px; }
    .field input::placeholder, .field textarea::placeholder { color: var(--silver-mute); }

    /* ---------- FAQ ---------- */
    .faq-item { border-bottom: 1px solid var(--glass-line); }
    .faq-item summary {
      cursor: pointer; list-style: none; padding: 22px 4px;
      font-family: 'Sora', sans-serif; font-weight: 600; font-size: 1.12rem; color: var(--silver-bright);
      display: flex; justify-content: space-between; align-items: center; gap: 16px;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary .plus { flex-shrink: 0; width: 26px; height: 26px; position: relative; transition: transform .3s ease; color: var(--blue-bright); }
    .faq-item[open] summary .plus { transform: rotate(45deg); }
    .faq-item .ans { padding: 0 4px 24px; color: var(--silver-mute); font-size: 0.98rem; max-width: 70ch; }

    /* ---------- Contact ---------- */
    .contact-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; }
    .contact-card { padding: 30px; text-align: center; }
    .contact-card .ic { width: 50px; height: 50px; margin: 0 auto 16px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
      background: linear-gradient(140deg, rgba(30,144,255,0.18), rgba(30,144,255,0.03)); border: 1px solid rgba(65,166,255,0.28); color: var(--blue-bright); }
    .contact-card .ic svg { width: 24px; height: 24px; }
    .contact-card h3 { font-size: 1.05rem; margin: 0 0 6px; font-weight: 600; }
    .contact-card a, .contact-card p { color: var(--silver); text-decoration: none; font-size: 0.95rem; margin: 0; }
    .contact-card a:hover { color: var(--blue-bright); }

    /* ---------- Footer ---------- */
    footer.site {
      border-top: 1px solid var(--glass-line);
      padding: 56px 0 110px;
      background: linear-gradient(180deg, transparent, rgba(0,0,0,0.4));
    }
    .foot-top { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; flex-wrap: wrap; }
    .foot-brand { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
    .foot-brand img { width: 46px; height: 46px; border-radius: 12px; }
    .foot-brand b { font-family: 'Sora', sans-serif; color: var(--silver-bright); font-size: 1.1rem; letter-spacing: 1px; }
    .foot-brand b span { color: var(--blue-bright); }
    .social { display: flex; gap: 14px; }
    .social a { width: 46px; height: 46px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
      border: 1px solid var(--glass-line); background: rgba(255,255,255,0.02); color: var(--silver); transition: all .3s ease; }
    .social a:hover { color: var(--blue-bright); border-color: rgba(65,166,255,0.5); transform: translateY(-3px); box-shadow: 0 0 24px -8px var(--glow); }
    .social a svg { width: 22px; height: 22px; }
    .foot-links { display: flex; flex-wrap: wrap; gap: 8px 26px; margin: 30px 0 0; padding: 0; list-style: none; }
    .foot-links a { color: var(--silver-mute); text-decoration: none; font-size: 0.9rem; }
    .foot-links a:hover { color: var(--blue-bright); }
    .copy { margin-top: 26px; font-size: 0.82rem; color: var(--silver-mute); }


    /* ---------- Side section nav (desktop dot rail) ---------- */
    .dot-nav {
      position: fixed; top: 50%; right: 20px; transform: translateY(-50%);
      z-index: 95; display: flex; flex-direction: column; gap: 13px;
      padding: 15px 11px; border-radius: 30px;
      background: rgba(13,17,23,0.5); border: 1px solid var(--glass-line);
      backdrop-filter: blur(12px) saturate(130%); -webkit-backdrop-filter: blur(12px) saturate(130%);
    }
    .dot-nav a {
      position: relative; display: block; width: 11px; height: 11px; border-radius: 50%;
      background: rgba(199,208,220,0.28);
      transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
    }
    .dot-nav a::before {
      content: attr(data-label); position: absolute; right: 24px; top: 50%;
      transform: translateY(-50%) translateX(6px); white-space: nowrap;
      font-family: 'Chakra Petch', sans-serif; font-size: 0.7rem; letter-spacing: 1px; text-transform: uppercase;
      color: var(--silver-bright); background: rgba(13,17,23,0.94); border: 1px solid var(--glass-line);
      padding: 5px 10px; border-radius: 8px; opacity: 0; pointer-events: none;
      transition: opacity .2s ease, transform .2s ease;
    }
    .dot-nav a:hover { background: var(--blue-bright); transform: scale(1.25); }
    .dot-nav a:hover::before { opacity: 1; transform: translateY(-50%) translateX(0); }
    .dot-nav a.active { background: var(--blue); transform: scale(1.35); box-shadow: 0 0 0 4px rgba(30,144,255,0.18); }

    /* ---------- Hamburger button + slide-in side menu ---------- */
    .menu-btn {
      display: none; align-items: center; justify-content: center; width: 44px; height: 44px;
      border-radius: 12px; border: 1px solid var(--glass-line); background: var(--glass);
      color: var(--silver-bright); cursor: pointer; padding: 0;
    }
    .menu-btn svg { width: 22px; height: 22px; }

    .menu-overlay {
      position: fixed; inset: 0; z-index: 150; background: rgba(5,7,10,0.6);
      backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
      opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease;
    }
    .menu-overlay.show { opacity: 1; visibility: visible; }

    .side-menu {
      position: fixed; top: 0; right: 0; bottom: 0; width: min(320px, 84vw); z-index: 200;
      background: linear-gradient(180deg, #0d1117, #0a0d12); border-left: 1px solid var(--glass-line);
      box-shadow: -20px 0 60px rgba(0,0,0,0.5); transform: translateX(100%);
      transition: transform .4s cubic-bezier(.2,.7,.2,1);
      display: flex; flex-direction: column; padding: 22px; overflow-y: auto;
    }
    .side-menu.open { transform: translateX(0); }
    .sm-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; }
    .sm-head b { font-family: 'Sora', sans-serif; color: var(--silver-bright); font-weight: 700; letter-spacing: 2px; font-size: 0.8rem; text-transform: uppercase; }
    .sm-close { background: none; border: none; color: var(--silver-mute); cursor: pointer; width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; }
    .sm-close:hover { color: var(--silver-bright); }
    .sm-close svg { width: 22px; height: 22px; }
    .side-menu nav { display: flex; flex-direction: column; gap: 2px; }
    .side-menu nav a {
      display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: 12px;
      color: var(--silver); text-decoration: none; font-family: 'Manrope', sans-serif; font-weight: 600; font-size: 0.96rem;
      transition: background .2s ease, color .2s ease;
    }
    .side-menu nav a::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--silver-mute); transition: background .2s ease, transform .2s ease; }
    .side-menu nav a:hover { background: rgba(30,144,255,0.08); color: var(--silver-bright); }
    .side-menu nav a.active { background: rgba(30,144,255,0.12); color: var(--silver-bright); }
    .side-menu nav a.active::before { background: var(--blue-bright); transform: scale(1.4); }
    .sm-cta { margin-top: auto; padding-top: 20px; display: flex; flex-direction: column; gap: 10px; }
    .sm-cta .btn { justify-content: center; }
    body.menu-open { overflow: hidden; }

    /* ---------- Scroll reveal ---------- */
    .reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1); }
    .reveal.in { opacity: 1; transform: none; }
    .reveal.d1 { transition-delay: .08s; } .reveal.d2 { transition-delay: .16s; }
    .reveal.d3 { transition-delay: .24s; } .reveal.d4 { transition-delay: .32s; }

    /* ---------- Section heading block ---------- */
    .sec-head { max-width: 720px; margin-bottom: 50px; }
    .sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }
    .sec-head.center .eyebrow { justify-content: center; }

    /* ---------- Responsive ---------- */
    @media (max-width: 900px) {
      .grid-3, .reviews, .contact-grid { grid-template-columns: 1fr; }
      .split, .split.rev, .grid-2, .why-grid { grid-template-columns: 1fr; }
      .stats { grid-template-columns: repeat(2,1fr); }
      .nav-cta .btn span.lbl { display: none; }
      .nav-cta .btn { padding: 11px 14px; }
      .menu-btn { display: flex; }
      .dot-nav { display: none; }
      section { padding: 72px 0; }
      .panel-pad, .form-card { padding: 30px; }
      .feature-visual { min-height: 280px; order: -1; }
    }
    @media (max-width: 480px) {
      .wrap { padding: 0 18px; }
      .hero { padding: 124px 0 70px; }
      .stats { grid-template-columns: repeat(2,1fr); gap: 10px; }
      .offer .price { font-size: 2.1rem; }
      .nav-cta .btn-ghost { display: none; }
    }

    @media (prefers-reduced-motion: reduce) {
      *, *::before, *::after { animation: none !important; transition: none !important; }
      .reveal { opacity: 1; transform: none; }
      html { scroll-behavior: auto; }
    }
  
    /* ---------- Multi-page navigation overrides ---------- */
    /* The hamburger drawer is now the single menu bar on every viewport;
       the desktop section dot-rail is no longer used. */
    .menu-btn { display: flex !important; }
    .dot-nav { display: none !important; }
    body.subpage section:first-of-type { padding-top: 140px; }

    /* ---------- Live chat widget ---------- */
    .chat-launch {
      position: fixed; right: 20px; bottom: 20px; z-index: 120;
      width: 60px; height: 60px; border-radius: 50%; border: none; cursor: pointer;
      display: flex; align-items: center; justify-content: center;
      color: #fff; background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep));
      box-shadow: 0 14px 34px rgba(0,0,0,0.5), 0 0 0 1px rgba(120,170,230,0.25) inset;
      transition: transform .2s ease, box-shadow .2s ease;
      animation: chatFloat 6s ease-in-out infinite;
    }
    .chat-launch:hover { transform: translateY(-3px) scale(1.04); box-shadow: 0 18px 40px rgba(0,0,0,0.55); }
    .chat-launch:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 3px; }
    .chat-launch svg { width: 28px; height: 28px; }
    .chat-launch .ic-close { display: none; }
    .chat-launch.open .ic-chat { display: none; }
    .chat-launch.open .ic-close { display: block; }
    .chat-launch .dot {
      position: absolute; top: 3px; right: 3px; width: 13px; height: 13px; border-radius: 50%;
      background: #25d366; border: 2px solid var(--bg-2);
      box-shadow: 0 0 0 0 rgba(37,211,102,0.5); animation: chatDot 2.4s ease-in-out infinite;
    }
    .chat-launch.open .dot { display: none; }
    @keyframes chatFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }
    @keyframes chatDot { 0%,100% { box-shadow: 0 0 0 0 rgba(37,211,102,0.5); } 50% { box-shadow: 0 0 0 6px rgba(37,211,102,0); } }

    .chat-panel {
      position: fixed; right: 20px; bottom: 92px; z-index: 120;
      width: min(380px, calc(100vw - 32px)); max-height: min(620px, calc(100vh - 130px));
      display: flex; flex-direction: column; overflow: hidden;
      border-radius: 20px; border: 1px solid var(--glass-line);
      background: linear-gradient(180deg, rgba(16,21,28,0.96), rgba(10,13,18,0.97));
      backdrop-filter: blur(16px) saturate(140%); -webkit-backdrop-filter: blur(16px) saturate(140%);
      box-shadow: 0 30px 70px rgba(0,0,0,0.6);
      opacity: 0; transform: translateY(14px) scale(0.98); transform-origin: bottom right;
      pointer-events: none; transition: opacity .22s ease, transform .22s ease;
    }
    .chat-panel.open { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }

    .chat-head { display: flex; align-items: center; gap: 12px; padding: 16px 18px;
      border-bottom: 1px solid var(--glass-line); background: rgba(30,144,255,0.06); }
    .chat-head .avatar {
      width: 40px; height: 40px; border-radius: 50%; flex: none; display: flex; align-items: center; justify-content: center;
      background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep)); color: #fff;
      font-weight: 800; font-size: 0.95rem; letter-spacing: 0.5px;
    }
    .chat-head .meta { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
    .chat-head .meta strong { color: var(--silver-bright); font-size: 0.98rem; }
    .chat-head .meta span { font-size: 0.76rem; color: var(--silver-mute); display: flex; align-items: center; gap: 6px; }
    .chat-head .meta span::before { content: ''; width: 7px; height: 7px; border-radius: 50%; background: #25d366; }
    .chat-head .x { margin-left: auto; background: none; border: none; cursor: pointer; color: var(--silver-mute);
      width: 34px; height: 34px; border-radius: 10px; display: flex; align-items: center; justify-content: center; transition: background .2s ease, color .2s ease; }
    .chat-head .x:hover { background: rgba(255,255,255,0.06); color: var(--silver-bright); }
    .chat-head .x svg { width: 18px; height: 18px; }

    .chat-body { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 12px; }
    .chat-body::-webkit-scrollbar { width: 8px; }
    .chat-body::-webkit-scrollbar-thumb { background: rgba(120,170,230,0.18); border-radius: 8px; }
    .msg { max-width: 84%; padding: 11px 14px; border-radius: 16px; font-size: 0.9rem; line-height: 1.45; white-space: pre-wrap; word-wrap: break-word; }
    .msg.bot { align-self: flex-start; background: var(--anthracite-2); color: var(--silver-bright); border: 1px solid var(--glass-line); border-bottom-left-radius: 5px; }
    .msg.me { align-self: flex-end; background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep)); color: #fff; border-bottom-right-radius: 5px; }
    .msg.err { align-self: stretch; max-width: 100%; background: rgba(255,90,90,0.08); border: 1px solid rgba(255,90,90,0.3); color: #ffb4b4; font-size: 0.84rem; }

    .chat-typing { align-self: flex-start; display: flex; gap: 5px; padding: 13px 16px; background: var(--anthracite-2);
      border: 1px solid var(--glass-line); border-radius: 16px; border-bottom-left-radius: 5px; }
    .chat-typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--silver-mute); animation: chatBlink 1.4s infinite both; }
    .chat-typing span:nth-child(2) { animation-delay: .2s; }
    .chat-typing span:nth-child(3) { animation-delay: .4s; }
    @keyframes chatBlink { 0%,80%,100% { opacity: .25; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }

    .chat-quick { display: flex; flex-wrap: wrap; gap: 8px; padding: 0 18px 6px; }
    .chat-quick button { font: inherit; font-size: 0.8rem; cursor: pointer; padding: 8px 12px; border-radius: 999px;
      background: rgba(30,144,255,0.08); border: 1px solid var(--glass-line); color: var(--silver); transition: background .2s ease, color .2s ease, border-color .2s ease; }
    .chat-quick button:hover { background: rgba(30,144,255,0.16); color: var(--silver-bright); border-color: var(--blue); }

    .chat-input { display: flex; align-items: flex-end; gap: 10px; padding: 12px 14px; border-top: 1px solid var(--glass-line); background: rgba(7,9,13,0.5); }
    .chat-input textarea {
      flex: 1; resize: none; max-height: 110px; min-height: 22px; font: inherit; font-size: 0.9rem;
      color: var(--silver-bright); background: transparent; border: none; outline: none; line-height: 1.4;
    }
    .chat-input textarea::placeholder { color: var(--silver-mute); }
    .chat-input .send { flex: none; width: 40px; height: 40px; border-radius: 12px; border: none; cursor: pointer; color: #fff;
      background: linear-gradient(135deg, var(--blue-bright), var(--blue-deep)); display: flex; align-items: center; justify-content: center; transition: opacity .2s ease, transform .2s ease; }
    .chat-input .send:hover { transform: translateY(-1px); }
    .chat-input .send:disabled { opacity: 0.4; cursor: default; transform: none; }
    .chat-input .send svg { width: 18px; height: 18px; }
    .chat-legal { padding: 0 16px 12px; font-size: 0.68rem; color: var(--silver-mute); text-align: center; background: rgba(7,9,13,0.5); }

    @media (max-width: 480px) {
      .chat-panel { right: 12px; left: 12px; bottom: 86px; width: auto; max-height: calc(100vh - 120px); }
      .chat-launch { right: 16px; bottom: 16px; }
    }