:root{
  --blue:#2563eb;--blue-dark:#1d4ed8;--blue-light:#eff6ff;--blue-50:#f5f9ff;
  --ink:#0f172a;--text:#334155;--muted:#64748b;--line:#e2e8f0;
  --bg:#ffffff;--bg-soft:#f8fafc;--gray:#f1f5f9;
  --radius:16px;--radius-sm:10px;--shadow:0 10px 40px -12px rgba(15,23,42,.18);
  --shadow-sm:0 4px 16px -6px rgba(15,23,42,.12);
  --font:'IBM Plex Sans Thai','Inter',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
h1,h2,h3,h4{color:var(--ink);line-height:1.25;font-weight:700}
.container{max-width:1160px;margin:0 auto;padding:0 24px}
.container.narrow{max-width:780px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-family:inherit;font-weight:600;font-size:15px;padding:12px 22px;border-radius:var(--radius-sm);border:1px solid transparent;cursor:pointer;transition:.18s;white-space:nowrap}
.btn-lg{padding:15px 30px;font-size:16px}
.btn-sm{padding:7px 14px;font-size:13px}
.btn-block{width:100%}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 20px -8px rgba(37,99,235,.6)}
.btn-primary:hover{background:var(--blue-dark);transform:translateY(-1px)}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue)}
.btn-outline:hover{background:var(--blue-light)}
.btn-ghost{background:rgba(255,255,255,.15);color:#fff;border-color:rgba(255,255,255,.35);backdrop-filter:blur(4px)}
.btn-ghost:hover{background:rgba(255,255,255,.25)}
.btn-demo{background:#fee2e2;color:#dc2626;border-color:#fecaca}
.btn-demo:hover{background:#fecaca;transform:translateY(-1px)}
.btn-line{background:#06c755;color:#fff;box-shadow:0 8px 20px -8px rgba(6,199,85,.6)}
.btn-line:hover{background:#05b34c;transform:translateY(-1px)}
.btn-line svg{margin-right:2px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);transition:.3s}
.site-header.scrolled{box-shadow:var(--shadow-sm)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{font-weight:800;font-size:24px;letter-spacing:-.5px;color:var(--ink);font-family:'Inter',var(--font)}
.brand-mark{background:var(--blue);color:#fff;padding:3px 8px;border-radius:8px;margin-right:1px}
.brand-light{color:#fff}
.main-nav{display:flex;align-items:center;gap:28px}
.main-nav a{font-weight:500;color:var(--text);font-size:15px;transition:.15s}
.main-nav a:hover,.main-nav a.active{color:var(--blue)}
.nav-cta{color:#fff!important}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}

/* Hero */
.hero{position:relative;padding:90px 0 100px;background:radial-gradient(1200px 600px at 80% -10%,#dbeafe 0,transparent 60%),linear-gradient(180deg,var(--blue-50),#fff)}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-block;background:var(--blue-light);color:var(--blue);font-weight:600;font-size:13px;padding:6px 14px;border-radius:999px;margin-bottom:18px}
.eyebrow-light{background:rgba(255,255,255,.18);color:#fff}
.hero h1{font-size:50px;letter-spacing:-1px;margin-bottom:18px}
.hero .lead{font-size:20px;color:var(--muted);margin-bottom:28px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-checks{list-style:none;display:flex;gap:22px;flex-wrap:wrap;margin-top:28px;color:var(--muted);font-size:14px}

/* Hero mock dashboard */
.hero-visual{position:relative}
.mock-dashboard{background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:24px;display:grid;gap:16px}
.mock-top{display:flex;gap:7px}
.mock-top span{width:11px;height:11px;border-radius:50%;background:var(--line)}
.mock-top span:first-child{background:#f87171}.mock-top span:nth-child(2){background:#fbbf24}.mock-top span:nth-child(3){background:#34d399}
.mock-stat{background:var(--blue-light);border-radius:12px;padding:18px}
.mock-stat strong{display:block;font-size:34px;color:var(--blue);font-family:'Inter'}
.mock-stat small{color:var(--muted)}
.mock-bars{display:flex;align-items:flex-end;gap:10px;height:110px;padding:0 4px}
.mock-bars i{flex:1;background:linear-gradient(var(--blue),#60a5fa);border-radius:6px 6px 0 0;animation:grow .9s ease}
.mock-row{display:flex;justify-content:space-between;font-size:14px;padding:10px 14px;background:var(--bg-soft);border-radius:10px}
.mock-row b{color:#16a34a}
@keyframes grow{from{height:0}}

/* Logos */
.logos{padding:46px 0;border-bottom:1px solid var(--line)}
.logos-label{text-align:center;color:var(--muted);font-size:14px;margin-bottom:22px}
.logo-row{display:flex;flex-wrap:wrap;gap:36px;justify-content:center;align-items:center}
.logo-item{opacity:1;transition:.2s}
.logo-item:hover{transform:scale(1.05)}
.logo-item img{height:80px;object-fit:contain}
.logo-item span{font-weight:700;font-size:24px;color:var(--ink)}

/* Sections */
.section{padding:84px 0}
.section-alt{background:var(--bg-soft)}
.section-head{text-align:center;max-width:680px;margin:0 auto 52px}
.section-head h2{font-size:36px;letter-spacing:-.5px;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:18px}

/* Features */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.2s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c7d7fb}
.feature-icon{width:54px;height:54px;display:flex;align-items:center;justify-content:center;background:var(--blue-light);border-radius:14px;font-size:26px;margin-bottom:18px}
.feature-card h3{font-size:19px;margin-bottom:8px}
.feature-card p{color:var(--muted);font-size:15px}

/* Eyebrow variants */
.eyebrow-danger{background:#fee2e2;color:#dc2626}

/* Pain points */
.pain-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;max-width:900px;margin:0 auto}
.pain-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;transition:.2s}
.pain-card:hover{border-color:#fca5a5;box-shadow:var(--shadow-sm)}
.pain-x{flex-shrink:0;width:30px;height:30px;display:flex;align-items:center;justify-content:center;background:#fee2e2;color:#dc2626;border-radius:50%;font-weight:700;font-size:14px}
.pain-card h3{font-size:17px;margin-bottom:4px}
.pain-card p{color:var(--muted);font-size:14px}
.pain-cta{text-align:center;margin-top:34px;font-size:17px;font-weight:600;color:var(--ink)}
.pain-cta a{color:var(--blue);white-space:nowrap}

/* Screenshot gallery */
.shot-feature{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line);margin-bottom:24px}
.shot-feature img{width:100%;display:block}
.shot-cap{position:absolute;left:16px;bottom:16px;background:rgba(15,23,42,.8);color:#fff;font-size:13px;font-weight:600;padding:6px 14px;border-radius:999px;backdrop-filter:blur(4px)}
.shot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.shot-item{margin:0;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.2s}
.shot-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.shot-item img{width:100%;height:180px;object-fit:cover;object-position:top;display:block}
.shot-item figcaption{padding:12px 16px;font-size:14px;font-weight:600;color:var(--ink)}

/* Security */
.section-security{background:#3333FF}
.section-security .section-head h2{color:#fff}
.section-security .section-head p{color:rgba(255,255,255,.85)}
.section-security .eyebrow-light{background:rgba(255,255,255,.18);color:#fff}
.sec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sec-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.2s}
.sec-card:hover{border-color:var(--blue);box-shadow:var(--shadow);transform:translateY(-4px)}
.sec-ic{font-size:30px;display:block;margin-bottom:12px}
.sec-card h3{color:var(--ink);font-size:17px;margin-bottom:8px}
.sec-card p{color:var(--muted);font-size:14px}

/* Screenshot */
.screenshot-frame{border-radius:20px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.screenshot-placeholder{display:grid;grid-template-columns:200px 1fr;min-height:380px;background:#fff}
.sp-side{background:var(--ink);color:#cbd5e1;padding:24px;display:flex;flex-direction:column;gap:14px}
.sp-logo{color:#fff;font-weight:800;font-size:20px;margin-bottom:10px}
.sp-side em{font-style:normal;font-size:14px;padding:8px 12px;border-radius:8px}
.sp-side em:first-of-type{background:var(--blue);color:#fff}
.sp-main{padding:30px}
.sp-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:28px}
.sp-cards div{height:80px;background:var(--blue-light);border-radius:12px}
.sp-chart{display:flex;align-items:flex-end;gap:14px;height:200px}
.sp-chart i{flex:1;background:linear-gradient(var(--blue),#93c5fd);border-radius:8px 8px 0 0}

/* Pricing */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;display:flex;flex-direction:column;transition:.2s}
.price-card:hover{box-shadow:var(--shadow)}
.price-card.featured{border-color:var(--blue);box-shadow:0 20px 50px -20px rgba(37,99,235,.45);transform:scale(1.03)}
.ribbon{position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;font-size:12px;font-weight:600;padding:5px 16px;border-radius:999px}
.price-card h3{font-size:21px;margin-bottom:12px}
.price{font-size:38px;font-weight:800;color:var(--ink);font-family:'Inter';letter-spacing:-1px;line-height:1.1}
.price-note{color:var(--blue);font-size:14px;font-weight:600;margin:8px 0 4px}
.price-card.featured .price-note{color:var(--blue-dark)}
.price-feats{list-style:none;margin:18px 0 26px;flex:1;display:grid;gap:12px}
.price-feats li{font-size:15px;color:var(--text)}
.price-feats li::marker{content:''}

/* FAQ */
.faq-list{display:grid;gap:14px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:4px 20px}
.faq-item summary{cursor:pointer;font-weight:600;color:var(--ink);padding:16px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq-item summary::after{content:'+';font-size:22px;color:var(--blue)}
.faq-item[open] summary::after{content:'−'}
.faq-answer{padding-bottom:18px;color:var(--muted)}

/* Blog */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.blog-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.blog-thumb{height:180px;background:linear-gradient(135deg,var(--blue),#60a5fa);display:flex;align-items:center;justify-content:center;overflow:hidden}
.blog-thumb img{width:100%;height:100%;object-fit:cover}
.blog-thumb span{color:#fff;font-weight:800;font-size:28px;opacity:.85}
.blog-body{padding:22px;display:flex;flex-direction:column;gap:8px}
.blog-body time{font-size:13px;color:var(--muted)}
.blog-body h3{font-size:18px}
.blog-body h3 a:hover{color:var(--blue)}
.blog-body p{color:var(--muted);font-size:14px}
.read-more{color:var(--blue);font-weight:600;font-size:14px;margin-top:auto}

/* CTA / contact */
.section-cta{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff}
.section-cta .section-head h2{color:#fff}
.section-cta .section-head p{color:rgba(255,255,255,.85)}
.contact-form{background:#fff;border-radius:var(--radius);padding:32px;box-shadow:var(--shadow);text-align:left}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px;display:flex;flex-direction:column}
.form-group label{font-weight:600;font-size:14px;color:var(--ink);margin-bottom:7px}
.form-group label span{color:#ef4444}
.form-group input,.form-group textarea,.form-group select{font-family:inherit;font-size:15px;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fff;transition:.15s}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px var(--blue-light)}
.alert{padding:14px 18px;border-radius:10px;margin-bottom:18px;font-size:15px}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #86efac}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fca5a5}

/* Page hero */
.page-hero{padding:72px 0 56px;background:linear-gradient(180deg,var(--blue-50),#fff);text-align:center}
.page-hero h1{font-size:42px;letter-spacing:-.8px;margin-bottom:14px}
.page-hero .lead{font-size:19px;color:var(--muted);max-width:640px;margin:0 auto}

/* About */
.two-col{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.two-col h2{font-size:30px;margin-bottom:16px}
.two-col p{color:var(--muted);margin-bottom:14px}
.stat-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.stat-box{background:var(--blue-light);border-radius:var(--radius);padding:26px;text-align:center}
.stat-box strong{display:block;font-size:32px;color:var(--blue);font-family:'Inter'}
.stat-box span{color:var(--muted);font-size:14px}

/* Capabilities */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cap-col{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px}
.cap-col h3{font-size:18px;margin-bottom:18px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.cap-list{list-style:none;display:grid;gap:12px}
.cap-list li{position:relative;padding-left:28px;font-size:14.5px;color:var(--text);line-height:1.6}
.cap-list li::before{content:'✓';position:absolute;left:0;top:0;width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--blue-light);color:var(--blue);border-radius:50%;font-size:11px;font-weight:700;margin-top:3px}

/* Contact page */
.contact-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
.contact-info h2,.contact-form-wrap h2{font-size:24px;margin-bottom:22px}
.info-item{display:flex;gap:14px;margin-bottom:20px}
.info-ic{font-size:22px}
.info-item strong{display:block;color:var(--ink)}
.info-item p{color:var(--muted);font-size:15px}
.contact-form-wrap .contact-form{box-shadow:var(--shadow-sm)}

/* Post */
.post{padding:56px 0}
.back-link{color:var(--blue);font-weight:600;font-size:14px}
.post-title{font-size:38px;letter-spacing:-.8px;margin:18px 0 10px}
.post-meta{color:var(--muted);margin-bottom:26px}
.post-cover{width:100%;border-radius:var(--radius);margin-bottom:30px;max-height:420px;object-fit:cover}
.post-content{font-size:17px;color:var(--text);line-height:1.9}
.post-content h2{font-size:26px;margin:32px 0 12px}
.post-content h3{font-size:21px;margin:26px 0 10px}
.post-content p{margin-bottom:16px}
.post-content ul,.post-content ol{margin:0 0 18px 22px}
.post-content li{margin-bottom:8px}
.post-content img{border-radius:var(--radius);margin:20px 0;width:100%}
.post-content a{color:var(--blue);text-decoration:underline}
.post-content blockquote{border-left:4px solid var(--blue);background:var(--blue-light);padding:14px 20px;border-radius:0 8px 8px 0;margin:20px 0;color:var(--ink)}
.empty{text-align:center;color:var(--muted);padding:40px}

/* Footer */
.site-footer{background:var(--ink);color:#94a3b8;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:36px;padding-bottom:44px}
.footer-brand p{margin-top:14px;font-size:14px;max-width:300px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col a,.footer-col p{display:block;color:#94a3b8;font-size:14px;margin-bottom:10px;transition:.15s}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #1e293b;padding:22px 0;font-size:13px}

/* Error pages */
.errpage{text-align:center;padding:120px 24px}
.errpage h1{font-size:90px;color:var(--blue);font-family:'Inter'}
.errpage p{color:var(--muted);font-size:18px;margin:10px 0 26px}

/* Responsive */
@media(max-width:900px){
  .hero-inner,.two-col,.contact-layout{grid-template-columns:1fr}
  .hero{padding:56px 0 64px}
  .hero h1{font-size:38px}
  .feature-grid,.pricing-grid,.blog-grid,.cap-grid,.shot-grid,.sec-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .price-card.featured{transform:none}
}
@media(max-width:640px){
  .main-nav{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;align-items:stretch;padding:16px 24px;gap:8px;border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-150%);transition:.3s;visibility:hidden}
  .main-nav.open{transform:translateY(0);visibility:visible}
  .main-nav a{padding:10px 0}
  .nav-toggle{display:flex}
  .feature-grid,.pricing-grid,.blog-grid,.cap-grid,.shot-grid,.sec-grid,.pain-grid,.form-row,.stat-grid,.footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:32px}
  .section{padding:56px 0}
  .section-head h2{font-size:28px}
  .page-hero h1{font-size:32px}
}