:root{
    --ink:#12161b;
    --panel:#191f26;
    --panel-raised:#212831;
    --line:#323b45;
    --line-soft:#242b33;
    --text:#e8ecef;
    --text-dim:#8d99a6;
    --text-faint:#5c6672;
    --signal:#e3a544;
    --signal-soft:rgba(227,165,68,.14);
    --signal-line:rgba(227,165,68,.35);
    --alert:#c9583f;
    --alert-soft:rgba(201,88,63,.14);
    --radius:3px;
    --wrap:1120px;
  }

  *{box-sizing:border-box;}
  html{background:var(--ink);scroll-behavior:smooth;}
  @media (prefers-reduced-motion:reduce){html{scroll-behavior:auto;}}
  body{
    margin:0;
    background:var(--ink);
    color:var(--text);
    font-family:"IBM Plex Sans Thai","IBM Plex Sans",system-ui,sans-serif;
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }

  h1,h2,h3,.display{
    font-family:"Chakra Petch","IBM Plex Sans Thai",system-ui,sans-serif;
    font-weight:600;
    text-wrap:balance;
    margin:0;
  }

  .mono{
    font-family:"IBM Plex Mono",ui-monospace,monospace;
  }

  a{color:inherit;}

  .wrap{
    max-width:var(--wrap);
    margin:0 auto;
    padding:0 24px;
  }

  /* ---------- background texture ---------- */
  .grain{
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background-image:
      repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0px, rgba(255,255,255,.018) 1px, transparent 1px, transparent 3px);
    mix-blend-mode:overlay;
  }

  /* ---------- header ---------- */
  header{
    position:sticky;
    top:0;
    z-index:20;
    background:rgba(18,22,27,.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line-soft);
  }
  .header-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 24px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-family:"Chakra Petch",sans-serif;
    font-weight:700;
    font-size:1.05rem;
    letter-spacing:.03em;
    white-space:nowrap;
  }
  .brand-mark{
    position:relative;
    width:20px;height:20px;
    border-radius:50%;
    border:1.5px solid var(--signal);
    flex:none;
  }
  .brand-mark::before{
    content:"";
    position:absolute;
    inset:5px;
    border-radius:50%;
    background:var(--signal);
  }
  .brand-mark::after{
    content:"";
    position:absolute;
    inset:-4px;
    border-radius:50%;
    border:1px solid var(--signal-line);
  }
  .btn{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.82rem;
    font-weight:600;
    letter-spacing:.04em;
    text-transform:uppercase;
    text-decoration:none;
    padding:11px 18px;
    border-radius:var(--radius);
    border:1px solid transparent;
    white-space:nowrap;
    cursor:pointer;
    transition:background-color .15s ease, border-color .15s ease, transform .15s ease, color .15s ease;
  }
  .btn-primary{
    background:var(--signal);
    color:#191206;
  }
  .btn-primary:hover{background:#f0b869;transform:translateY(-1px);}
  .btn-ghost{
    border-color:var(--line);
    color:var(--text);
    background:transparent;
  }
  .btn-ghost:hover{border-color:var(--signal);color:var(--signal);}
  .header-row .btn{padding:9px 14px;font-size:.74rem;}

  .nav-links{
    display:flex;
    align-items:center;
    gap:28px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.72rem;
    text-transform:uppercase;
    letter-spacing:.05em;
    color:var(--text-dim);
  }
  .nav-links a{text-decoration:none;transition:color .15s ease;}
  .nav-links a:hover{color:var(--signal);}
  @media (max-width:760px){
    .nav-links{display:none;}
  }
  @media (max-width:400px){
    .brand{font-size:.9rem;}
    .header-row .btn{padding:8px 11px;font-size:.66rem;}
  }

  /* ---------- hero ---------- */
  .hero{
    position:relative;
    padding:88px 0 76px;
    overflow:hidden;
    border-bottom:1px solid var(--line-soft);
  }
  .hero-bg{
    position:absolute;
    inset:0;
    z-index:0;
    background:url(/assets/hero-car-night.jpg) center right/cover no-repeat;
    opacity:.9;
  }
  .hero-bg::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg, var(--ink) 18%, rgba(18,22,27,.86) 50%, rgba(18,22,27,.55) 100%),
               linear-gradient(0deg, var(--ink), transparent 45%);
  }
  .radar{
    position:absolute;
    top:50%;left:100%;
    transform:translate(-38%,-50%);
    width:640px;height:640px;
    border-radius:50%;
    border:1px solid var(--line-soft);
    pointer-events:none;
  }
  .radar::before,.radar::after{
    content:"";
    position:absolute;
    border-radius:50%;
    border:1px solid var(--line-soft);
  }
  .radar::before{inset:110px;}
  .radar::after{inset:220px;}
  .radar-sweep{
    position:absolute;
    inset:0;
    border-radius:50%;
    background:conic-gradient(from 0deg, var(--signal-soft), transparent 26%);
    animation:spin 7s linear infinite;
  }
  @keyframes spin{to{transform:rotate(360deg);}}
  @media (prefers-reduced-motion:reduce){
    .radar-sweep{animation:none;background:conic-gradient(from -30deg, var(--signal-soft), transparent 20%);}
  }

  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.76rem;
    letter-spacing:.12em;
    text-transform:uppercase;
    color:var(--signal);
    margin-bottom:22px;
  }
  .eyebrow::before{
    content:"";
    width:7px;height:7px;
    border-radius:50%;
    background:var(--signal);
    box-shadow:0 0 0 3px var(--signal-soft);
  }

  .hero-grid{
    display:grid;
    grid-template-columns:1.15fr .85fr;
    gap:48px;
    align-items:center;
    position:relative;
    z-index:1;
  }

  .hero h1{
    font-size:clamp(2.1rem,4.6vw,3.4rem);
    line-height:1.15;
    max-width:14ch;
  }
  .hero .lede{
    margin-top:22px;
    max-width:56ch;
    color:var(--text-dim);
    font-size:1.05rem;
  }
  .hero .cta-row{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:34px;
  }
  .hero .cta-row .btn{padding:14px 24px;font-size:.82rem;}

  .readout{
    margin-top:52px;
    display:flex;
    flex-wrap:wrap;
    gap:10px 28px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.76rem;
    color:var(--text-faint);
    letter-spacing:.02em;
  }
  .readout span{display:flex;align-items:center;gap:8px;}
  .readout span::before{content:"›";color:var(--signal);}

  /* ---------- hero scan diagram ---------- */
  .hero-visual{
    position:relative;
    background:var(--panel);
    border:1px solid var(--line-soft);
    padding:22px 22px 18px;
  }
  .hero-visual .panel-label{
    display:flex;
    justify-content:space-between;
    font-family:"IBM Plex Mono",monospace;
    font-size:.68rem;
    letter-spacing:.08em;
    text-transform:uppercase;
    color:var(--text-faint);
    margin-bottom:14px;
  }
  .hero-visual .panel-label b{color:var(--signal);font-weight:600;}
  .car-diagram{width:100%;height:auto;display:block;overflow:visible;}
  .car-diagram .body-line{fill:none;stroke:var(--text-dim);stroke-width:1.6;}
  .car-diagram .glass-line{fill:none;stroke:var(--text-faint);stroke-width:1.2;}
  .car-diagram .ground{stroke:var(--line);stroke-width:1;}
  .scan-dot{fill:var(--signal);}
  .scan-ring{
    fill:none;
    stroke:var(--signal);
    stroke-width:1.4;
    transform-origin:center;
    transform-box:fill-box;
    animation:ping 2.6s ease-out infinite;
  }
  .scan-pt:nth-of-type(2) .scan-ring{animation-delay:.5s;}
  .scan-pt:nth-of-type(3) .scan-ring{animation-delay:1s;}
  .scan-pt:nth-of-type(4) .scan-ring{animation-delay:1.5s;}
  .scan-pt:nth-of-type(5) .scan-ring{animation-delay:2s;}
  @keyframes ping{
    0%{r:3;opacity:.9;}
    100%{r:16;opacity:0;}
  }
  @media (prefers-reduced-motion:reduce){
    .scan-ring{animation:none;opacity:.4;r:9;}
  }
  .hero-visual .legend{
    margin-top:10px;
    display:flex;
    flex-wrap:wrap;
    gap:8px 18px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.68rem;
    color:var(--text-faint);
  }
  .hero-visual .legend span{display:flex;align-items:center;gap:6px;}
  .hero-visual .legend i{width:6px;height:6px;border-radius:50%;background:var(--signal);display:inline-block;}

  /* ---------- section scaffolding ---------- */
  section{
    padding:76px 0;
    border-bottom:1px solid var(--line-soft);
    position:relative;
  }
  .section-head{
    display:flex;
    justify-content:space-between;
    align-items:flex-end;
    gap:24px;
    flex-wrap:wrap;
    margin-bottom:40px;
  }
  .kicker{
    font-family:"IBM Plex Mono",monospace;
    font-size:.74rem;
    letter-spacing:.14em;
    text-transform:uppercase;
    color:var(--text-faint);
    display:block;
    margin-bottom:12px;
  }
  .kicker b{color:var(--signal);font-weight:600;}
  h2{font-size:clamp(1.5rem,2.6vw,2rem);max-width:22ch;}
  .section-note{
    max-width:34ch;
    color:var(--text-dim);
    font-size:.93rem;
  }

  /* ---------- warning signs ---------- */
  .signs{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:1px;
    background:var(--line-soft);
    border:1px solid var(--line-soft);
  }
  .sign{
    background:var(--panel);
    padding:24px 26px;
    display:flex;
    gap:16px;
    transition:background-color .18s ease;
  }
  .sign:hover{background:var(--panel-raised);}
  .sign:hover .sign-mark svg{color:var(--signal);}
  .sign-mark{
    flex:none;
    display:flex;
    flex-direction:column;
    align-items:center;
    gap:8px;
    width:26px;
  }
  .sign-mark svg{width:22px;height:22px;color:var(--text-dim);}
  .sign-num{
    font-family:"IBM Plex Mono",monospace;
    color:var(--text-faint);
    font-size:.72rem;
  }
  .sign p{margin:0;color:var(--text);font-size:.96rem;}
  .callout{
    margin-top:1px;
    background:var(--alert-soft);
    border:1px solid rgba(201,88,63,.3);
    border-top:none;
    padding:18px 26px;
    font-size:.9rem;
    color:var(--text);
    display:flex;
    gap:12px;
  }
  .callout b{color:var(--alert);font-family:"IBM Plex Mono",monospace;font-weight:600;text-transform:uppercase;font-size:.78rem;letter-spacing:.06em;flex:none;}

  /* ---------- services ---------- */
  .services{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1px;
    background:var(--line-soft);
    border:1px solid var(--line-soft);
  }
  .service{
    background:var(--panel);
    padding:32px 28px;
    display:flex;
    flex-direction:column;
    gap:14px;
    transition:background-color .18s ease;
  }
  .service:hover{background:var(--panel-raised);}
  .service-icon{
    width:42px;height:42px;
    color:var(--signal);
  }
  .service-icon svg{width:100%;height:100%;display:block;}
  .service .tag{
    font-family:"IBM Plex Mono",monospace;
    font-size:.7rem;
    letter-spacing:.08em;
    text-transform:uppercase;
    color:var(--signal);
  }
  .service h3{font-size:1.15rem;font-weight:600;}
  .service p{margin:0;color:var(--text-dim);font-size:.92rem;flex:1;}
  .service .price-note{
    font-family:"IBM Plex Mono",monospace;
    font-size:.74rem;
    color:var(--text-faint);
    border-top:1px solid var(--line-soft);
    padding-top:14px;
    margin-top:4px;
  }
  .removal-strip{
    margin-top:1px;
    background:var(--panel-raised);
    border:1px solid var(--line-soft);
    border-top:none;
    padding:26px 28px;
    display:flex;
    align-items:center;
    gap:20px;
    flex-wrap:wrap;
    justify-content:space-between;
  }
  .removal-strip p{margin:0;max-width:62ch;color:var(--text-dim);font-size:.92rem;}
  .removal-strip strong{color:var(--text);font-family:"Chakra Petch",sans-serif;font-weight:600;}

  /* ---------- sample report ---------- */
  .report-card{
    margin-top:28px;
    background:var(--panel-raised);
    border:1px dashed var(--line);
    padding:28px;
  }
  .report-head{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:20px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.68rem;
    color:var(--text-faint);
    text-transform:uppercase;
    letter-spacing:.06em;
  }
  .report-body{
    display:grid;
    grid-template-columns:180px 1fr;
    gap:28px;
    align-items:start;
  }
  .report-photo{
    aspect-ratio:4/3;
    border:1px dashed var(--line);
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:8px;
    color:var(--text-faint);
    font-family:"IBM Plex Mono",monospace;
    font-size:.64rem;
    text-align:center;
    padding:10px;
  }
  .report-photo svg{width:26px;height:26px;}
  .report-fields{display:flex;flex-direction:column;gap:11px;}
  .report-fields .f{
    display:flex;
    gap:12px;
    font-size:.88rem;
    color:var(--text-dim);
    border-bottom:1px dashed var(--line-soft);
    padding-bottom:9px;
  }
  .report-fields .f span{
    font-family:"IBM Plex Mono",monospace;
    font-size:.66rem;
    text-transform:uppercase;
    letter-spacing:.05em;
    color:var(--text-faint);
    flex:none;
    width:150px;
  }

  /* ---------- device gallery ---------- */
  .devices{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1px;
    background:var(--line-soft);
    border:1px solid var(--line-soft);
  }
  .device-card{
    background:var(--panel);
    padding:30px 26px 26px;
    display:flex;
    flex-direction:column;
    gap:16px;
    transition:background-color .18s ease;
  }
  .device-card:hover{background:var(--panel-raised);}
  .device-card:hover .device-art{border-color:var(--signal-line);}
  .device-art{
    width:100%;
    aspect-ratio:4/3;
    display:flex;
    align-items:center;
    justify-content:center;
    background:
      radial-gradient(ellipse at 50% 60%, var(--signal-soft), transparent 65%),
      repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 22px),
      repeating-linear-gradient(0deg, var(--line-soft) 0 1px, transparent 1px 22px);
    border:1px solid var(--line-soft);
    transition:border-color .18s ease;
  }
  .device-art svg{width:118px;height:118px;}
  .device-card h3{font-size:1.02rem;font-weight:600;}
  .device-card p{margin:0;color:var(--text-dim);font-size:.88rem;}
  .device-card .where{
    font-family:"IBM Plex Mono",monospace;
    font-size:.68rem;
    text-transform:uppercase;
    letter-spacing:.05em;
    color:var(--text-faint);
    border-top:1px solid var(--line-soft);
    padding-top:12px;
  }

  /* ---------- process ---------- */
  #process{
    background:
      linear-gradient(rgba(18,22,27,.8), rgba(18,22,27,.88)),
      url(/assets/inspect-bw-crop.jpg) center/cover no-repeat;
  }
  .process{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:24px;
  }
  .step{
    position:relative;
    padding-top:20px;
    border-top:1px solid var(--line);
    transition:border-color .18s ease;
  }
  .step:hover{border-top-color:var(--signal);}
  .step::before{
    content:"";
    position:absolute;
    top:-1px;left:0;
    width:34px;height:1px;
    background:var(--signal);
  }
  .step-top{
    display:flex;
    align-items:center;
    justify-content:space-between;
    margin-bottom:10px;
  }
  .step-num{
    font-family:"IBM Plex Mono",monospace;
    color:var(--signal);
    font-size:.82rem;
    display:block;
  }
  .step-icon{width:22px;height:22px;color:var(--text-faint);}
  .step-icon svg{width:100%;height:100%;display:block;}
  .step h3{font-size:1.02rem;font-weight:600;margin-bottom:8px;}
  .step p{margin:0;color:var(--text-dim);font-size:.88rem;}

  /* ---------- legal ---------- */
  .legal-panel{
    background:var(--panel);
    border:1px solid var(--line-soft);
    padding:36px 40px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .legal-panel p{margin:0 0 14px;color:var(--text-dim);font-size:.93rem;}
  .legal-panel p:last-child{margin-bottom:0;}
  .legal-panel .col-head{
    font-family:"IBM Plex Mono",monospace;
    font-size:.74rem;
    letter-spacing:.06em;
    text-transform:uppercase;
    color:var(--text);
    display:block;
    margin-bottom:14px;
  }

  /* ---------- real work / proof gallery ---------- */
  .work-grid{
    display:grid;
    grid-template-columns:minmax(260px,320px) 1fr;
    gap:28px;
    align-items:start;
  }
  .work-video{
    position:relative;
    background:#000;
    border:1px solid var(--signal-line);
    border-radius:var(--radius);
    overflow:hidden;
    aspect-ratio:9/16;
  }
  .work-video video{
    width:100%;height:100%;
    object-fit:cover;display:block;
  }
  .work-video .live-tag{
    position:absolute;top:12px;left:12px;
    display:flex;align-items:center;gap:6px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.64rem;letter-spacing:.08em;text-transform:uppercase;
    color:var(--signal);
    background:rgba(18,22,27,.72);
    border:1px solid var(--signal-line);
    padding:5px 9px;border-radius:2px;
    backdrop-filter:blur(4px);
  }
  .work-video .live-tag i{
    width:6px;height:6px;border-radius:50%;background:var(--alert);
    animation:blink 1.4s steps(2,start) infinite;
  }
  @keyframes blink{50%{opacity:.25;}}
  @media (prefers-reduced-motion:reduce){.work-video .live-tag i{animation:none;}}
  .work-photos{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:1px;
    background:var(--line-soft);
    border:1px solid var(--line-soft);
  }
  .work-photo{
    position:relative;
    background:var(--panel);
    aspect-ratio:4/3;
    overflow:hidden;
  }
  .work-photo img{
    width:100%;height:100%;
    object-fit:cover;display:block;
    transition:transform .3s ease;
  }
  .work-photo:hover img{transform:scale(1.04);}
  .work-photo .cap{
    position:absolute;left:0;right:0;bottom:0;
    padding:16px 12px 10px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.68rem;letter-spacing:.03em;
    color:var(--text);
    background:linear-gradient(0deg, rgba(18,22,27,.9), transparent);
  }
  @media (max-width:860px){
    .work-grid{grid-template-columns:1fr;}
    .work-video{max-width:300px;margin:0 auto;}
  }
  @media (max-width:420px){
    .work-photos{grid-template-columns:1fr;}
  }

  /* ---------- contact ---------- */
  .contact{border-bottom:none;}
  .contact-panel{
    background:var(--panel);
    border:1px solid var(--signal-line);
    padding:48px;
    display:grid;
    grid-template-columns:1.2fr 1fr;
    gap:40px;
    align-items:center;
  }
  .contact-panel h2{margin-bottom:14px;}
  .contact-panel .lede{color:var(--text-dim);font-size:.95rem;max-width:44ch;}
  .contact-actions{
    display:flex;
    flex-direction:column;
    gap:14px;
  }
  .call-btn{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    background:var(--signal);
    color:#191206;
    text-decoration:none;
    padding:20px 24px;
    border-radius:var(--radius);
  }
  .call-btn .label{font-family:"IBM Plex Mono",monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;opacity:.75;}
  .call-btn .num{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:1.35rem;font-variant-numeric:tabular-nums;}
  .meta-list{
    display:flex;
    flex-direction:column;
    gap:10px;
    font-size:.86rem;
    color:var(--text-dim);
  }
  .meta-list span{color:var(--text-faint);font-family:"IBM Plex Mono",monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;margin-right:8px;}

  footer{
    padding:32px 0 48px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
    gap:12px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.74rem;
    color:var(--text-faint);
  }

  @media (max-width:860px){
    .signs{grid-template-columns:1fr;}
    .services{grid-template-columns:1fr;}
    .devices{grid-template-columns:1fr;}
    .process{grid-template-columns:repeat(2,1fr);}
    .legal-panel{grid-template-columns:1fr;padding:28px;}
    .contact-panel{grid-template-columns:1fr;padding:32px 26px;}
    .radar{display:none;}
    .hero-grid{grid-template-columns:1fr;}
    .hero-visual{max-width:420px;}
    section{padding:56px 0;}
  }
  @media (max-width:520px){
    .process{grid-template-columns:1fr;}
    .removal-strip{flex-direction:column;align-items:flex-start;}
    .report-body{grid-template-columns:1fr;}
    .report-photo{aspect-ratio:16/9;}
  }

  /* ---------- language switcher ---------- */
  .lang-switch{
    display:flex;
    align-items:center;
    gap:2px;
    font-family:"IBM Plex Mono",monospace;
    font-size:.72rem;
    letter-spacing:.04em;
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
  }
  .lang-switch a{
    padding:7px 10px;
    text-decoration:none;
    color:var(--text-dim);
    transition:background-color .15s ease, color .15s ease;
  }
  .lang-switch a + a{border-left:1px solid var(--line);}
  .lang-switch a:hover{color:var(--signal);}
  .lang-switch a.active{
    background:var(--signal);
    color:#191206;
  }
  .header-actions{display:flex;align-items:center;gap:12px;}
  @media (max-width:400px){
    .lang-switch a{padding:6px 8px;font-size:.64rem;}
  }

  /* ---------- decorative section backgrounds ---------- */
  #signs{
    background:
      linear-gradient(rgba(18,22,27,.86), rgba(18,22,27,.95)),
      url(/assets/car-interior-night.jpg) center/cover no-repeat;
  }
  #contact{
    background:
      linear-gradient(rgba(18,22,27,.82), rgba(18,22,27,.92)),
      url(/assets/bangkok-night.jpg) center/cover no-repeat;
  }

  /* ---------- horizontal-overflow fix ---------- */
  html,body{overflow-x:hidden;max-width:100%;}
  .header-row{flex-wrap:wrap;row-gap:10px;}
  @media (max-width:480px){
    .header-row{padding:12px 16px;}
    .header-actions{gap:8px;}
    .header-actions .btn-primary{padding:8px 11px;font-size:.66rem;}
    .lang-switch a{padding:6px 8px;font-size:.66rem;}
  }

  /* ---------- LINE buttons ---------- */
  .btn-line{
    display:inline-flex;align-items:center;gap:8px;
    background:#06c755;color:#fff;
    font-family:"IBM Plex Mono",monospace;font-size:.82rem;font-weight:600;
    letter-spacing:.04em;text-transform:uppercase;text-decoration:none;
    padding:11px 18px;border-radius:var(--radius);border:1px solid transparent;
    white-space:nowrap;cursor:pointer;
    transition:background-color .15s ease, transform .15s ease;
  }
  .btn-line:hover{background:#05b64c;transform:translateY(-1px);}
  .btn-line svg{width:18px;height:18px;flex:none;}
  .header-actions .btn-line{padding:9px 14px;font-size:.74rem;}
  .hero .cta-row .btn-line{padding:14px 24px;font-size:.82rem;}

  /* big LINE button inside contact */
  .line-btn{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    background:#06c755;color:#fff;text-decoration:none;
    padding:20px 24px;border-radius:var(--radius);
    transition:background-color .15s ease;
  }
  .line-btn:hover{background:#05b64c;}
  .line-btn .label{font-family:"IBM Plex Mono",monospace;font-size:.72rem;text-transform:uppercase;letter-spacing:.08em;opacity:.85;}
  .line-btn .num{font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:1.15rem;display:flex;align-items:center;gap:8px;}
  .line-btn svg{width:22px;height:22px;flex:none;}

  /* floating LINE FAB (bottom-right) */
  .line-fab{
    position:fixed;right:18px;bottom:18px;z-index:50;
    display:flex;align-items:center;gap:10px;
    background:#06c755;color:#fff;text-decoration:none;
    padding:12px 18px 12px 14px;border-radius:999px;
    box-shadow:0 6px 20px rgba(0,0,0,.45);
    font-family:"Chakra Petch",sans-serif;font-weight:700;font-size:.95rem;
    transition:transform .15s ease;
    animation:fabpulse 2.4s ease-in-out infinite;
  }
  .line-fab:hover{transform:translateY(-2px) scale(1.03);}
  .line-fab svg{width:26px;height:26px;flex:none;}
  @keyframes fabpulse{
    0%,100%{box-shadow:0 6px 20px rgba(0,0,0,.45),0 0 0 0 rgba(6,199,85,.45);}
    50%{box-shadow:0 6px 20px rgba(0,0,0,.45),0 0 0 12px rgba(6,199,85,0);}
  }
  @media (prefers-reduced-motion:reduce){.line-fab{animation:none;}}
  @media (max-width:480px){
    .line-fab{right:12px;bottom:12px;padding:12px;}
    .line-fab .fab-text{display:none;}
  }