/* p602.online — Dark theme based on th39.cash reference */
:root {
  --bg:#0a0a0f; --bg-elev:#11111a; --bg-card:#16161f; --border:#2a2a3a;
  --fg:#f0f0f5; --fg-muted:#a0a0b0; --fg-dim:#707080;
  --accent:#00e676; --accent-dim:#00b35a; --accent-glow:rgba(0,230,118,.35);
  --accent2:#bb86fc; --accent2-dim:#9d6ae5; --accent2-glow:rgba(187,134,252,.35);
  --warn:#ffb300; --warn-glow:rgba(255,179,0,.35);
  --danger:#ff4444; --danger-glow:rgba(255,68,68,.35);
  --radius:12px; --radius-sm:8px; --shadow:0 8px 32px rgba(0,0,0,.45);
  --shadow-sm:0 2px 8px rgba(0,0,0,.35); --trans:.2s ease;
  --font-sans:'Noto Sans Thai',system-ui,-apple-system,sans-serif;
  --font-mono:'JetBrains Mono',monospace; --maxw:1280px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--fg);font-family:var(--font-sans);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:color var(--trans)} a:hover{color:var(--accent2)}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,10,15,.95);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.logo{font-weight:900;font-size:1.4rem;letter-spacing:-.5px;background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.logo span{font-weight:400;opacity:.7}
.nav{display:flex;gap:8px} .nav a{padding:10px 16px;border-radius:var(--radius-sm);font-weight:500;font-size:.9rem;color:var(--fg-muted);transition:all var(--trans)} .nav a:hover,.nav a.active{background:var(--bg-card);color:var(--accent);box-shadow:var(--shadow-sm)}
.cta-btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;background:linear-gradient(135deg,var(--accent),var(--accent-dim));color:#051008;font-weight:700;border-radius:var(--radius);border:none;cursor:pointer;transition:all var(--trans);box-shadow:0 4px 16px var(--accent-glow)} .cta-btn:hover{transform:translateY(-2px);box-shadow:0 8px 24px var(--accent-glow);color:#051008} .cta-btn:active{transform:translateY(0)} .cta-btn.secondary{background:var(--bg-card);color:var(--accent);border:1px solid var(--accent);box-shadow:none} .cta-btn.secondary:hover{background:var(--accent);color:#051008;box-shadow:0 4px 16px var(--accent-glow)}

/* Hero */
.hero{position:relative;padding:80px 0 60px;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(0,230,118,.08),transparent 70%),radial-gradient(ellipse 60% 50% at 100% 100%,rgba(187,134,252,.06),transparent 60%);pointer-events:none}
.hero-img{position:absolute;inset:0;z-index:0;opacity:.15;filter:blur(1px)} .hero-img img{width:100%;height:100%;object-fit:cover}
.hero-content{position:relative;z-index:1;text-align:center;max-width:900px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;background:rgba(0,230,118,.1);border:1px solid var(--accent);border-radius:999px;font-size:.8rem;font-weight:700;color:var(--accent);margin-bottom:20px}
.hero h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:900;line-height:1.15;margin:0 0 16px;letter-spacing:-1px}
.hero h1 span{background:linear-gradient(135deg,var(--accent),var(--accent2));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hero p.lead{font-size:1.15rem;color:var(--fg-muted);margin:0 0 32px;max-width:680px;margin-left:auto;margin-right:auto}
.hero-ctas{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:32px}
.trust-indicators{display:flex;gap:24px;justify-content:center;flex-wrap:wrap;color:var(--fg-dim);font-size:.85rem} .trust-indicators span{display:flex;align-items:center;gap:6px} .trust-indicators svg{width:18px;height:18px;color:var(--accent)}

/* Sections */
section{padding:72px 0} section.alt{background:var(--bg-elev)} section:nth-child(odd){background:var(--bg)}
.section-head{text-align:center;margin-bottom:48px} .section-head h2{font-size:clamp(1.6rem,3.5vw,2.4rem);font-weight:900;margin:0 0 12px;letter-spacing:-.5px} .section-head h2 span{color:var(--accent)} .section-head p{color:var(--fg-muted);font-size:1.05rem;margin:0}

/* Grid cards */
.grid{display:grid;gap:24px} .grid-2{grid-template-columns:repeat(2,1fr)} .grid-3{grid-template-columns:repeat(3,1fr)} .grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:1024px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}} @media(max-width:640px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--trans)} .card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-4px)}
.card-img{aspect-ratio:16/10;overflow:hidden;background:var(--bg-elev)} .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease} .card:hover .card-img img{transform:scale(1.05)}
.card-body{padding:24px} .card-tag{display:inline-block;font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--accent);background:rgba(0,230,118,.1);padding:4px 10px;border-radius:999px;margin-bottom:12px}
.card h3{font-size:1.15rem;font-weight:800;margin:0 0 10px;line-height:1.3} .card p{color:var(--fg-muted);font-size:.95rem;margin:0 0 16px;line-height:1.6} .card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:16px;border-top:1px solid var(--border)}

/* Table */
.table-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-card)}
table{width:100%;border-collapse:collapse;font-size:.9rem} th,td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--border)} th{background:var(--bg-elev);font-weight:700;color:var(--fg);white-space:nowrap} tr:last-child td{border-bottom:none} tr:hover td{background:rgba(0,230,118,.03)} td.accent{color:var(--accent);font-weight:600}

/* FAQ */
.faq{max-width:900px;margin:0 auto} details{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:12px;overflow:hidden} summary{padding:20px 24px;font-weight:700;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none} summary::-webkit-details-marker{display:none} summary::after{content:'+';font-size:1.5rem;color:var(--accent);transition:transform var(--trans)} details[open] summary::after{transform:rotate(45deg)} details[open] summary{border-bottom:1px solid var(--border)} .faq-ans{padding:0 24px 20px;color:var(--fg-muted);line-height:1.7}

/* CTA Section */
.cta-section{text-align:center;padding:100px 20px;background:linear-gradient(180deg,var(--bg),var(--bg-elev) 60%)} .cta-section h2{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;margin:0 0 16px} .cta-section p{color:var(--fg-muted);font-size:1.1rem;margin:0 0 32px;max-width:600px;margin-left:auto;margin-right:auto} .cta-section .cta-btn{font-size:1.1rem;padding:16px 40px}

/* Footer */
.site-footer{background:var(--bg-elev);border-top:1px solid var(--border);padding:60px 0 30px} .footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:40px;margin-bottom:40px} @media(max-width:768px){.footer-grid{grid-template-columns:1fr 1fr}} @media(max-width:480px){.footer-grid{grid-template-columns:1fr}}
.footer-brand p{color:var(--fg-muted);font-size:.9rem;margin-top:12px;line-height:1.7} .footer-col h4{font-size:.9rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--accent);margin:0 0 16px} .footer-col ul{list-style:none;padding:0;margin:0} .footer-col li{margin-bottom:10px} .footer-col a{color:var(--fg-muted);font-size:.9rem;transition:color var(--trans)} .footer-col a:hover{color:var(--accent)} .footer-bottom{padding-top:24px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;color:var(--fg-dim);font-size:.8rem} .footer-bottom a{color:var(--fg-dim)} .footer-bottom a:hover{color:var(--accent)}

/* Article / Content pages */
.article-header{padding:60px 0 30px;text-align:center;background:var(--bg-elev);border-bottom:1px solid var(--border)} .article-header .cat{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.5px;color:var(--accent);margin-bottom:12px;display:block} .article-header h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;line-height:1.2;margin:0 0 16px;letter-spacing:-.5px} .article-meta{display:flex;align-items:center;justify-content:center;gap:20px;color:var(--fg-dim);font-size:.85rem;flex-wrap:wrap} .article-meta time{color:var(--fg-muted)}
.article-body{max-width:880px;margin:0 auto;padding:48px 20px 80px} .article-body h2{font-size:1.5rem;font-weight:900;margin:48px 0 16px;padding-bottom:8px;border-bottom:2px solid var(--accent);color:var(--fg)} .article-body h2::before{content:attr(data-num)'. ';color:var(--accent);font-weight:900} .article-body h3{font-size:1.15rem;font-weight:700;margin:32px 0 12px;color:var(--fg)} .article-body p{margin:0 0 20px;line-height:1.8;color:var(--fg)} .article-body p strong{color:var(--fg)} .article-body ul,.article-body ol{margin:16px 0;padding-left:24px} .article-body li{margin-bottom:8px;line-height:1.7;color:var(--fg)} .article-body img{margin:32px auto;border-radius:var(--radius);box-shadow:var(--shadow);max-width:100%} .article-body .figure-caption{text-align:center;color:var(--fg-dim);font-size:.85rem;margin-top:-24px;margin-bottom:32px} .article-body table{margin:24px 0} .article-body blockquote{border-left:3px solid var(--accent);padding-left:20px;margin:24px 0;color:var(--fg-muted);font-style:italic} .article-body .toc{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin:32px 0} .article-body .toc h3{margin:0 0 16px;font-size:1rem} .article-body .toc ul{list-style:none;padding:0;margin:0} .article-body .toc li{margin:8px 0} .article-body .toc a{color:var(--fg-muted);transition:color var(--trans)} .article-body .toc a:hover{color:var(--accent)}

/* Buttons inline */
.btn-inline{display:inline-flex;align-items:center;gap:8px;padding:10px 20px;background:linear-gradient(135deg,var(--accent),var(--accent-dim));color:#051008;font-weight:700;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:all var(--trans)} .btn-inline:hover{transform:translateY(-1px);box-shadow:0 4px 12px var(--accent-glow)}

/* Mobile menu */
.mobile-menu-btn{display:none;background:none;border:none;color:var(--fg);font-size:1.5rem;cursor:pointer}
@media(max-width:768px){.mobile-menu-btn{display:block} .nav{position:absolute;top:100%;left:0;right:0;background:var(--bg);flex-direction:column;padding:16px;border-bottom:1px solid var(--border);display:none;box-shadow:var(--shadow)} .nav.open{display:flex} .nav a{width:100%;text-align:center}}

/* Scrollbar */
::-webkit-scrollbar{width:8px;height:8px} ::-webkit-scrollbar-track{background:var(--bg)} ::-webkit-scrollbar-thumb{background:var(--border);border-radius:4px} ::-webkit-scrollbar-thumb:hover{background:var(--accent)}

/* Animations */
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}} .animate-in{animation:fadeUp .6s ease forwards} .delay-1{animation-delay:.1s} .delay-2{animation-delay:.2s} .delay-3{animation-delay:.3s} .delay-4{animation-delay:.4s}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--accent);color:#051008;padding:12px 20px;z-index:999;font-weight:700}
.skip-link:focus{left:0}
.lead{font-size:1.15rem;color:var(--fg-muted);margin:0 0 32px;max-width:680px;margin-left:auto;margin-right:auto}
.card-desc{color:var(--fg-muted);font-size:.95rem;line-height:1.6;margin:0 0 16px}
caption{caption-side:top;text-align:left;padding:14px 16px;color:var(--fg-dim);font-size:.85rem;border-bottom:1px solid var(--border)}
.toc li{margin:10px 0}

/* --- section wrappers & faq item --- */
.intro{padding:72px 0 12px}
section{padding:56px 0}
section.alt{background:var(--bg-elev)}
.faq-item{scroll-margin-top:90px}
.article-body{max-width:900px;margin:0 auto}
.note{display:block;background:var(--bg-card);border-left:3px solid var(--accent);padding:16px 20px;border-radius:8px;color:var(--fg-muted);margin:22px 0;font-size:.95rem}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
@media(max-width:760px){.grid-2{grid-template-columns:1fr}}