:root{
  --navy:#142C55;
  --navy-2:#17345F;
  --blue:#5F82B5;
  --light-blue:#EAF1FA;
  --off:#F7F9FC;
  --white:#FFFFFF;
  --text:#152238;
  --muted:#4F5F75;
  --line:#E7EBF0;
  --success:#16845B;
  --success-bg:#E6F4EE;
  --warning:#C78618;
  --warning-bg:#FDF4E3;
  --danger:#C44545;
  --danger-bg:#FBEAEA;
  --r:14px;
  --shadow:0 1px 2px rgba(20,44,85,.05),0 8px 24px rgba(20,44,85,.07);
  --max:1200px;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --off:#0F1B33;
    --white:#16233F;
    --text:#E8EEF8;
    --muted:#AAB7CC;
    --line:#2A3A59;
    --light-blue:#1C2D4D;
    --navy:#8FB0E0;
    --navy-2:#7FA3D6;
    --success-bg:#16392C;
    --warning-bg:#3A2D12;
    --danger-bg:#3D1F1F;
  }
}
:root[data-theme="dark"]{
  --off:#0F1B33;
  --white:#16233F;
  --text:#E8EEF8;
  --muted:#AAB7CC;
  --line:#2A3A59;
  --light-blue:#1C2D4D;
  --navy:#8FB0E0;
  --navy-2:#7FA3D6;
  --success-bg:#16392C;
  --warning-bg:#3A2D12;
  --danger-bg:#3D1F1F;
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"LINE Seed Sans TH",system-ui,"Segoe UI",Tahoma,sans-serif;
  color:var(--text);
  background:var(--off);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-wrap:break-word;
  word-break:normal;
}
img,svg{max-width:100%;display:block}
a{color:var(--navy);text-underline-offset:3px}
h1,h2,h3,h4{line-height:1.3;margin:0 0 .5em;color:var(--text)}
h1{font-size:clamp(30px,5vw,52px);font-weight:800;letter-spacing:-.01em}
h2{font-size:clamp(24px,3.4vw,36px);font-weight:700}
h3{font-size:19px;font-weight:700}
p{margin:0 0 1em}
.wrap{max-width:var(--max);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
:focus-visible{outline:3px solid var(--blue);outline-offset:2px;border-radius:6px}
.skip{position:absolute;left:-999px;top:8px;background:var(--navy);color:#fff;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:50;background:var(--white);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:800;font-size:22px}
.brand-mark{width:34px;height:34px;border-radius:10px;background:var(--navy);display:grid;place-items:center;color:#fff;font-family:"LINE Seed Sans TH",sans-serif;font-weight:700;font-size:15px}
.brand small{display:block;font-size:12px;font-weight:500;color:var(--muted);margin-top:-4px;white-space:normal;line-height:1.35}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{display:block;white-space:nowrap;padding:8px 12px;border-radius:10px;color:var(--text);text-decoration:none;font-weight:500;font-size:15px}
.menu a:hover,.menu a[aria-current="page"]{background:var(--light-blue);color:var(--navy)}
.nav-actions{display:flex;align-items:center;gap:8px}
.menu-toggle{display:none;background:none;border:1px solid var(--line);border-radius:10px;padding:8px 12px;font:inherit;color:var(--text);cursor:pointer;min-height:44px}
@media (max-width:1140px){
  .menu-toggle{display:inline-flex;align-items:center}
  .menu{display:none;position:absolute;left:0;right:0;top:68px;background:var(--white);flex-direction:column;align-items:stretch;padding:12px 16px 20px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)}
  .menu.open{display:flex}
  .menu a{padding:14px 12px}
  .nav-actions .btn-ghost{display:none}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:10px 22px;border-radius:12px;
  font:inherit;font-weight:700;font-size:16px;text-decoration:none;
  border:1.5px solid var(--navy);background:var(--navy);color:#fff;cursor:pointer;
  text-align:center;line-height:1.3;
}
.btn:hover{background:var(--navy-2);border-color:var(--navy-2);color:#fff}
.btn-ghost{background:transparent;color:var(--navy);border-color:var(--line)}
.btn-ghost:hover{background:var(--light-blue);color:var(--navy)}
.btn-light{background:var(--white);color:var(--navy);border-color:var(--white)}
.btn-light:hover{background:var(--light-blue);color:var(--navy)}
.btn-block{width:100%}
.btn-sm{min-height:40px;padding:6px 14px;font-size:15px}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- sections ---------- */
section{padding:64px 0}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;color:var(--blue);letter-spacing:.02em;margin-bottom:10px}
.lead{font-size:18px;color:var(--muted);max-width:640px}
.section-head{max-width:720px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .lead{margin-left:auto;margin-right:auto}

/* ---------- hero ---------- */
.hero{padding:72px 0 56px;background:linear-gradient(180deg,var(--light-blue) 0%,var(--off) 100%)}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:48px;align-items:center}
.hero-grid>*,.two-col>*,.grid-2>*,.grid-3>*,.grid-4>*,.steps>*,.foot-grid>*,.kpis>*{min-width:0}
.hero .lead{margin-bottom:28px}
.hero-note{font-size:14px;color:var(--muted);margin-top:14px}
@media (max-width:900px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:32px}
  .hero{padding:44px 0 36px}
}

/* ---------- mockup (sample data only) ---------- */
.mock{background:var(--white);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);overflow:hidden}
.mock-bar{display:flex;align-items:center;gap:6px;padding:10px 14px;border-bottom:1px solid var(--line);background:var(--off)}
.mock-bar i{width:9px;height:9px;border-radius:50%;background:var(--line);display:block}
.mock-bar span{margin-left:10px;font-size:13px;color:var(--muted)}
.mock-body{padding:18px;display:grid;gap:14px}
.kpis{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
.kpi b{white-space:nowrap}
@media (max-width:420px){.kpi b{font-size:14px}.kpi{padding:10px 8px}.kpi small{font-size:11px;display:block}}
.kpi{background:var(--off);border:1px solid var(--line);border-radius:12px;padding:12px}
.kpi b{display:block;font-family:"LINE Seed Sans TH",sans-serif;font-size:19px;color:var(--text);font-variant-numeric:tabular-nums}
.kpi small{font-size:12px;color:var(--muted)}
.kpi .up{color:var(--success);font-size:12px;font-weight:600}
.bars{display:flex;align-items:flex-end;gap:8px;height:120px;padding:8px 4px 0;border-bottom:1px solid var(--line)}
.bars div{flex:1;background:var(--light-blue);border-radius:6px 6px 0 0;position:relative}
.bars div.hi{background:var(--navy)}
.chat{display:grid;gap:8px}
.bubble{max-width:82%;padding:9px 13px;border-radius:14px;font-size:14px;line-height:1.5}
.bubble.in{background:var(--off);border:1px solid var(--line);justify-self:start;border-bottom-left-radius:4px}
.bubble.out{background:var(--navy);color:#fff;justify-self:end;border-bottom-right-radius:4px}
.bubble.ok{background:var(--success-bg);color:var(--success);justify-self:start;font-weight:600;border:1px solid transparent}
.sample-tag{font-size:12px;color:var(--muted);text-align:right}

/* ---------- cards / grids ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
@media (max-width:960px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow)}
.card p{color:var(--muted);margin:0;font-size:15px}
.icon{width:44px;height:44px;border-radius:12px;background:var(--light-blue);color:var(--navy);display:grid;place-items:center;margin-bottom:14px}
.icon svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

.steps{counter-reset:step;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;list-style:none;padding:0;margin:0}
.steps li{counter-increment:step;background:var(--white);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.steps li::before{content:counter(step,decimal-leading-zero);display:block;font-family:"LINE Seed Sans TH",sans-serif;font-weight:700;color:var(--blue);font-size:14px;margin-bottom:6px}
.steps h3{font-size:17px}
.steps p{font-size:14px;color:var(--muted);margin:0}
@media (max-width:960px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.steps{grid-template-columns:1fr}}

.check{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.check li{position:relative;padding-left:30px;color:var(--text)}
.check li::before{content:"";position:absolute;left:0;top:7px;width:18px;height:18px;border-radius:50%;background:var(--success-bg);box-shadow:inset 0 0 0 2px var(--success)}
.check li::after{content:"";position:absolute;left:6px;top:11px;width:6px;height:3px;border-left:2px solid var(--success);border-bottom:2px solid var(--success);transform:rotate(-45deg)}

/* ---------- page hero (inner pages) ---------- */
.page-hero{padding:56px 0 40px;background:linear-gradient(180deg,var(--light-blue),var(--off));border-bottom:1px solid var(--line)}
.page-hero .lead{margin:0}
.crumbs{font-size:14px;color:var(--muted);margin-bottom:14px}
.crumbs a{color:var(--muted)}

/* ---------- cta band ---------- */
.cta{background:var(--navy);color:#fff;border-radius:20px;padding:44px 32px;text-align:center}
.cta h2{color:#fff}
.cta p{color:#D6E2F4;max-width:640px;margin:0 auto 22px}
.cta .btn{background:#fff;color:var(--navy);border-color:#fff}
.cta .btn:hover{background:var(--light-blue)}
.cta .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.4)}
.cta .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}

/* ---------- pricing ---------- */
.plan{display:flex;flex-direction:column;gap:14px}
.plan .price{font-size:22px;font-weight:800;color:var(--navy);font-family:"LINE Seed Sans TH",sans-serif}
.plan .price small{font-size:14px;color:var(--muted);font-weight:500}
.plan .tag{align-self:flex-start;font-size:12px;font-weight:700;background:var(--light-blue);color:var(--navy);padding:3px 10px;border-radius:999px}
.plan .btn{margin-top:auto}
.note-box{background:var(--warning-bg);border:1px solid #E9C98A;color:var(--text);border-radius:var(--r);padding:16px 18px;font-size:15px}
.toggle{display:inline-flex;background:var(--white);border:1px solid var(--line);border-radius:12px;padding:4px;gap:4px}
.toggle button{font:inherit;font-weight:600;border:0;background:transparent;padding:8px 16px;border-radius:9px;cursor:pointer;color:var(--muted);min-height:40px}
.toggle button[aria-pressed="true"]{background:var(--navy);color:#fff}

/* ---------- tables ---------- */
.table-wrap{overflow-x:auto;background:var(--white);border:1px solid var(--line);border-radius:var(--r)}
table{width:100%;border-collapse:collapse;font-size:15px}
th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:center;vertical-align:middle}
th:first-child,td:first-child{text-align:left}
thead th{background:var(--off);font-weight:700;color:var(--text)}
tbody tr:last-child td{border-bottom:0}

/* ---------- faq ---------- */
details.faq{background:var(--white);border:1px solid var(--line);border-radius:12px;padding:16px 20px;margin-bottom:10px}
details.faq summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px;min-height:32px;align-items:center}
details.faq summary::-webkit-details-marker{display:none}
details.faq summary::after{content:"+";font-size:22px;color:var(--navy);line-height:1}
details.faq[open] summary::after{content:"–"}
details.faq p{color:var(--muted);margin:10px 0 0;font-size:15px}

/* ---------- forms ---------- */
.form-card{max-width:460px;margin:0 auto;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:32px;box-shadow:var(--shadow)}
.form-card.wide{max-width:640px}
.field{margin-bottom:16px}
.field label{display:block;font-weight:600;margin-bottom:6px;font-size:15px}
.field .hint{font-size:13px;color:var(--muted);margin-top:4px}
input[type=text],input[type=email],input[type=password],input[type=tel],select,textarea{
  width:100%;min-height:48px;padding:10px 14px;border:1.5px solid #C9D3E0;border-radius:12px;font:inherit;font-size:16px;background:var(--white);color:var(--text)
}
textarea{min-height:120px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:3px solid var(--light-blue);border-color:var(--blue)}
input[aria-invalid="true"]{border-color:var(--danger)}
.error{color:var(--danger);font-size:14px;margin-top:4px;display:none}
.error.show{display:block}
.pw-row{position:relative}
.pw-row input{padding-right:76px}
.pw-row button{position:absolute;right:6px;top:50%;transform:translateY(-50%);background:none;border:0;color:var(--navy);font:inherit;font-weight:600;cursor:pointer;padding:8px;min-height:40px}
.pw-meter{height:6px;border-radius:4px;background:var(--line);overflow:hidden;margin-top:8px}
.pw-meter span{display:block;height:100%;width:0;background:var(--danger);transition:width .2s}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:15px;margin-bottom:12px}
.check-row input{margin-top:6px;width:18px;height:18px;flex:0 0 auto;accent-color:var(--navy)}
.alert{padding:14px 16px;border-radius:12px;font-size:15px;margin-bottom:16px;display:none}
.alert.show{display:block}
.alert.info{background:var(--light-blue);color:var(--navy)}
.alert.warn{background:var(--warning-bg);color:var(--text)}
.alert.ok{background:var(--success-bg);color:var(--success)}
.form-foot{text-align:center;font-size:15px;color:var(--muted);margin-top:18px}
.divider{display:flex;align-items:center;gap:12px;color:var(--muted);font-size:13px;margin:20px 0}
.divider::before,.divider::after{content:"";flex:1;height:1px;background:var(--line)}

/* ---------- footer ---------- */
.site-footer{background:var(--white);border-top:1px solid var(--line);padding:48px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:28px}
.foot-grid h4{font-size:15px;margin-bottom:12px}
.foot-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.foot-grid a{color:var(--muted);text-decoration:none;font-size:15px}
.foot-grid a:hover{color:var(--navy);text-decoration:underline}
.foot-bottom{margin-top:32px;padding-top:20px;border-top:1px solid var(--line);font-size:14px;color:var(--muted);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px}
@media (max-width:820px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:460px){.foot-grid{grid-template-columns:minmax(0,1fr)}}

/* ---------- legal ---------- */
.prose{max-width:780px}
.prose h2{font-size:22px;margin-top:32px}
.prose h3{font-size:17px;margin-top:20px}
.prose li{margin-bottom:6px}
.draft-badge{display:inline-block;background:var(--warning-bg);color:var(--text);border:1px solid #E9C98A;font-size:13px;padding:4px 10px;border-radius:8px;margin-bottom:14px}

/* ---------- misc ---------- */
.two-col{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
@media (max-width:860px){.two-col{grid-template-columns:minmax(0,1fr)}}
.stack>*+*{margin-top:16px}
.muted{color:var(--muted)}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.tabs button{font:inherit;font-weight:600;border:1px solid var(--line);background:var(--white);color:var(--muted);padding:9px 16px;border-radius:999px;cursor:pointer;min-height:44px}
.tabs button[aria-selected="true"]{background:var(--navy);border-color:var(--navy);color:#fff}
.tab-panel[hidden]{display:none}
.center{text-align:center}
.mt-0{margin-top:0}
@media (max-width:620px){
  h1{font-size:30px}
  section{padding:44px 0}
  .btn-row .btn{width:100%}
  .form-card{padding:22px}
  .cta{padding:32px 20px}
}
@media (prefers-reduced-motion: reduce){*{transition:none!important;animation:none!important}}

/* logo image in header/footer */
.brand-logo{width:68px;height:68px;margin:-12px 0;object-fit:contain;flex:0 0 auto}

/* ---------- ลูกเล่นการแสดงผล (motion.js) ---------- */
.js-motion .reveal{opacity:0;transform:translateY(22px);transition:opacity .7s cubic-bezier(.2,.7,.2,1),transform .7s cubic-bezier(.2,.7,.2,1)}
.js-motion .reveal.in{opacity:1;transform:none}
.card{transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
a.card:hover,.card:hover{transform:translateY(-4px);box-shadow:0 12px 32px rgba(20,44,85,.12);border-color:var(--blue)}
.btn{transition:background .2s ease,transform .2s ease,box-shadow .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(20,44,85,.18)}
.btn:active{transform:translateY(0)}
.hero{position:relative;overflow:hidden}
.hero>.wrap{position:relative;z-index:1}
.hero-wave{position:absolute;left:0;right:0;bottom:0;width:100%;height:60%;z-index:0;pointer-events:none;opacity:.55}
.wave-line{fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:round;stroke-dasharray:1400;stroke-dashoffset:1400;animation:wave-draw 3.2s cubic-bezier(.3,.6,.2,1) forwards,wave-drift 9s ease-in-out 3.2s infinite}
.wave-line.wave-1{stroke:var(--navy);opacity:.7}
.wave-line.wave-2{stroke:#8FB0E0;opacity:.6}
@keyframes wave-draw{to{stroke-dashoffset:0}}
@keyframes wave-drift{0%,100%{transform:translateX(0)}50%{transform:translateX(-18px)}}
.reveal.in:hover{transform:translateY(-4px)}
.bars div{transition:height .9s cubic-bezier(.2,.7,.2,1)}
@media (prefers-reduced-motion: reduce){
  .js-motion .reveal{opacity:1;transform:none;transition:none}
  .wave-line{animation:none;stroke-dashoffset:0}
  .card:hover,a.card:hover{transform:none}
}