/* ============================================================
   CryptoClock Pro — User Manual
   Theme matched to cashlessthailand.com (Cashless Thailand)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Anuphan:wght@100;300;400;500;600;700&family=Inter:wght@300;400;500;600;700;900&display=swap');

:root{
  --bg:           #050505;
  --bg-2:         #0a0a0a;
  --surface:      #111111;
  --surface-2:    #161616;
  --border:       rgba(255,255,255,0.10);
  --border-2:     rgba(255,255,255,0.06);
  --text:         rgba(255,255,255,0.90);
  --text-2:       rgba(255,255,255,0.62);
  --text-3:       rgba(255,255,255,0.40);
  --gold:         #D4AF37;
  --gold-2:       #E8C76B;
  --gold-dim:     rgba(212,175,55,0.16);
  --danger:       #FF4D4F;
  --warn:         #FF9500;
  --ok:           #0ECB81;
  --info:         #5B9BFF;
  --code-bg:      #0d0d0d;
  --code-border:  #1f1f1f;
  --shadow-1:     0 1px 2px rgba(0,0,0,.4), 0 0 0 1px var(--border-2);
  --shadow-2:     0 10px 30px rgba(0,0,0,.55), 0 0 0 1px var(--border-2);
  --radius:       14px;
  --radius-sm:    8px;
  --radius-lg:    22px;
  --maxw:         1200px;
  --gap:          32px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:'Anuphan','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  font-feature-settings:"ss01","cv11";
  font-weight:400;
  line-height:1.65;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
::selection{background:var(--gold);color:#000}
a{color:var(--gold);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--gold-2)}
img{max-width:100%;height:auto;display:block}
hr{border:0;border-top:1px solid var(--border);margin:48px 0}

/* ===== Top Bar ===== */
.topbar{
  position:sticky;top:0;z-index:60;
  backdrop-filter:saturate(180%) blur(14px);
  -webkit-backdrop-filter:saturate(180%) blur(14px);
  background:rgba(5,5,5,0.75);
  border-bottom:1px solid var(--border);
}
.topbar-inner{
  max-width:var(--maxw); margin:0 auto;
  padding:14px 24px;
  display:flex; align-items:center; justify-content:space-between; gap:24px;
}
.brand{display:flex; align-items:center; gap:10px; color:#fff; font-weight:700; letter-spacing:.06em}
.brand-logo{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--gold),#8a6a14);
  color:#000;font-weight:900;font-family:'Inter';font-size:16px;
  box-shadow:0 0 0 1px var(--gold), inset 0 1px 0 rgba(255,255,255,.35);
}
.brand-name{font-family:'Inter';font-weight:800;text-transform:uppercase;font-size:14px;letter-spacing:.12em}
.brand-sub{color:var(--gold);font-weight:600;font-size:12px;letter-spacing:.18em}
.topnav{display:flex; gap:6px; align-items:center; flex-wrap:wrap}
.topnav a{
  color:var(--text-2); font-size:13px; font-weight:600;
  padding:8px 12px; border-radius:8px; transition:.18s;
  letter-spacing:.06em; text-transform:uppercase; font-family:'Inter';
}
.topnav a:hover{color:#fff; background:rgba(255,255,255,.04)}
.topnav a.active{color:var(--gold); background:var(--gold-dim)}
.lang-switch{display:inline-flex; padding:3px; border:1px solid var(--border); border-radius:8px; gap:2px}
.lang-switch a{padding:5px 12px; font-size:12px; font-weight:700; border-radius:6px; color:var(--text-2)}
.lang-switch a.cur{background:var(--gold); color:#000}

/* ===== Hero ===== */
.hero{
  position:relative;
  padding:72px 24px 56px;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.hero::before{
  content:""; position:absolute; inset:-1px;
  background:
    radial-gradient(700px 320px at 15% 0%, rgba(212,175,55,.16), transparent 60%),
    radial-gradient(900px 380px at 90% 100%, rgba(91,155,255,.08), transparent 65%);
  pointer-events:none;
}
.hero-inner{position:relative; max-width:var(--maxw); margin:0 auto}
.crumbs{display:flex; gap:8px; align-items:center; font-size:13px; color:var(--text-2); margin-bottom:20px}
.crumbs a{color:var(--gold); font-weight:600; letter-spacing:.05em; text-transform:uppercase; font-family:'Inter'}
.crumbs .sep{color:var(--text-3)}
.hero h1{
  font-size:clamp(36px, 5vw, 64px); font-weight:900; line-height:1.04;
  letter-spacing:-.02em; margin:0 0 16px; color:#fff;
  font-family:'Inter';
}
.hero h1 .gold{color:var(--gold)}
.hero p.lead{font-size:clamp(16px, 1.4vw, 20px); color:var(--text-2); max-width:780px; margin:0 0 28px; line-height:1.6}
.hero-meta{display:flex; gap:14px; flex-wrap:wrap}
.tag{
  display:inline-flex; align-items:center; gap:6px;
  padding:6px 12px; border:1px solid var(--border); border-radius:999px;
  font-size:12px; color:var(--text-2); font-weight:600; letter-spacing:.05em;
  font-family:'Inter'; text-transform:uppercase;
}
.tag .dot{width:6px;height:6px;border-radius:999px;background:var(--gold);box-shadow:0 0 8px var(--gold)}

/* ===== Layout ===== */
.shell{display:grid; grid-template-columns: 280px 1fr; gap:48px; max-width:var(--maxw); margin:0 auto; padding:48px 24px 80px}
@media (max-width: 960px){
  .shell{grid-template-columns:1fr; gap:0}
  .toc-col{position:static !important}
}

/* ===== TOC Sidebar ===== */
.toc-col{position:sticky; top:88px; align-self:start; max-height:calc(100vh - 100px); overflow:auto}
.toc{
  padding:22px;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,0));
}
.toc h3{
  margin:0 0 14px; font-size:11px; font-weight:700;
  color:var(--gold); text-transform:uppercase; letter-spacing:.18em;
  font-family:'Inter';
}
.toc ol{list-style:none; padding:0; margin:0; counter-reset:toc}
.toc li{counter-increment:toc; margin:0; padding:0}
.toc a{
  display:flex; gap:10px; padding:8px 10px; border-radius:8px;
  font-size:14px; color:var(--text-2); line-height:1.4;
  transition:.15s; border:1px solid transparent;
}
.toc a::before{
  content:counter(toc, decimal-leading-zero);
  font-family:'Inter'; font-size:11px; font-weight:700;
  color:var(--text-3); flex-shrink:0; min-width:24px;
}
.toc a:hover{color:#fff; background:rgba(255,255,255,.04)}
.toc a.active{color:var(--gold); background:var(--gold-dim); border-color:rgba(212,175,55,.25)}
.toc .sub{padding-left:32px; font-size:13px; color:var(--text-3)}
.toc .sub::before{content:"·"; color:var(--text-3); min-width:18px}
.toc-toggle{
  display:none;
  position:fixed; right:18px; bottom:18px; z-index:50;
  background:var(--gold); color:#000; border:0; border-radius:999px;
  padding:12px 18px; font-weight:700; font-family:'Inter'; cursor:pointer;
  box-shadow:0 10px 30px rgba(212,175,55,.35);
}
@media (max-width: 960px){
  .toc-col{display:none}
  .toc-col.open{display:block; position:fixed; inset:88px 12px 12px; z-index:55; max-height:none}
  .toc-toggle{display:inline-flex; align-items:center; gap:8px}
}

/* ===== Main Content ===== */
.content{min-width:0}
section.chapter{
  padding:36px 0 56px;
  border-bottom:1px solid var(--border-2);
  scroll-margin-top:88px;
}
section.chapter:last-child{border-bottom:0}
.chapter h2{
  font-size:clamp(26px, 3vw, 36px); font-weight:900; line-height:1.15;
  color:#fff; margin:0 0 14px; letter-spacing:-.01em;
  font-family:'Inter';
}
.chapter > h2 .num{
  display:inline-block; color:var(--gold); font-size:14px;
  vertical-align:middle; margin-right:14px; padding:4px 10px;
  border:1px solid var(--gold-dim); border-radius:8px; font-weight:700;
  letter-spacing:.15em; position:relative; top:-3px;
}
.chapter h3{
  font-size:clamp(18px, 2vw, 22px); font-weight:700; color:#fff;
  margin:36px 0 12px; line-height:1.3;
}
.chapter h4{
  font-size:16px; font-weight:700; color:var(--gold-2);
  margin:24px 0 8px; letter-spacing:.05em; text-transform:uppercase;
  font-family:'Inter';
}
.chapter p{margin:0 0 16px; color:var(--text)}
.chapter ul, .chapter ol{padding-left:22px; margin:0 0 16px}
.chapter li{margin:6px 0}
.chapter strong{color:#fff; font-weight:700}
.chapter em{color:var(--gold-2); font-style:normal}

/* ===== Stepper (used in steps like CryptoClock Basic) ===== */
.steps{margin:18px 0 28px; padding:0; list-style:none; display:grid; gap:14px}
.step{
  display:grid; grid-template-columns:64px 1fr; gap:18px; align-items:start;
  padding:18px 20px;
  border:1px solid var(--border); border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0));
}
.step .badge{
  width:56px; height:56px; border-radius:14px;
  display:grid; place-items:center;
  background:linear-gradient(180deg, rgba(212,175,55,.18), rgba(212,175,55,.04));
  border:1px solid rgba(212,175,55,.4); color:var(--gold);
  font-family:'Inter'; font-weight:900; font-size:18px;
}
.step h4{margin:0 0 4px; color:#fff; font-family:'Inter'; font-size:14px; letter-spacing:.12em; text-transform:uppercase}
.step .body p{margin:0; color:var(--text-2)}

/* ===== Callouts ===== */
.callout{
  display:grid; grid-template-columns:auto 1fr; gap:14px;
  padding:16px 18px; margin:18px 0;
  border:1px solid var(--border); border-left-width:3px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,.02);
}
.callout .ico{font-family:'Inter';font-weight:900;font-size:14px;letter-spacing:.1em;line-height:1;padding-top:2px}
.callout p{margin:0}
.callout.info{border-left-color:var(--info)}
.callout.info .ico{color:var(--info)}
.callout.tip{border-left-color:var(--ok)}
.callout.tip .ico{color:var(--ok)}
.callout.warn{border-left-color:var(--warn)}
.callout.warn .ico{color:var(--warn)}
.callout.danger{border-left-color:var(--danger)}
.callout.danger .ico{color:var(--danger)}

/* ===== Figures ===== */
figure{margin:24px 0; border:1px solid var(--border); border-radius:var(--radius); overflow:hidden; background:var(--surface)}
figure img{width:100%; height:auto; display:block; background:#000}
figure figcaption{
  padding:14px 18px; font-size:13.5px; color:var(--text-2); line-height:1.55;
  border-top:1px solid var(--border);
  background:rgba(255,255,255,.02);
}
figure figcaption strong{color:var(--gold-2)}
figure figcaption em{color:var(--text-3); font-style:normal; font-size:12px; display:block; margin-top:6px}

/* ===== Tables ===== */
.table-wrap{overflow-x:auto; margin:18px 0; border:1px solid var(--border); border-radius:var(--radius-sm)}
table{width:100%; border-collapse:collapse; font-size:14px; min-width:520px}
table th, table td{
  text-align:left; padding:12px 16px; border-bottom:1px solid var(--border-2);
  vertical-align:top;
}
table th{
  background:var(--surface-2); color:var(--gold); font-weight:700;
  font-family:'Inter'; text-transform:uppercase; letter-spacing:.08em; font-size:12px;
}
table tbody tr:last-child td{border-bottom:0}
table tbody tr:hover{background:rgba(255,255,255,.02)}
table td code{background:var(--code-bg); padding:2px 6px; border-radius:4px; font-size:12.5px; color:var(--gold-2)}

/* ===== Code blocks ===== */
code, pre{font-family:'JetBrains Mono','SF Mono','Menlo',Consolas,monospace}
p code, li code, td code{
  background:var(--code-bg); padding:2px 7px; border-radius:5px;
  border:1px solid var(--code-border); font-size:13px; color:var(--gold-2);
}
pre{
  background:var(--code-bg); color:#e8e8e8;
  border:1px solid var(--code-border); border-radius:var(--radius-sm);
  padding:16px 18px; overflow-x:auto; font-size:13px; line-height:1.55;
  margin:18px 0;
}
pre code{background:none; border:0; padding:0; color:inherit; font-size:13px}

/* ===== Cards / Spec grid ===== */
.spec-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:14px; margin:18px 0}
.spec{
  padding:16px 18px; border:1px solid var(--border); border-radius:var(--radius-sm);
  background:linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,0));
}
.spec .k{color:var(--text-3); font-size:11px; text-transform:uppercase; letter-spacing:.15em; font-family:'Inter'; font-weight:700; margin-bottom:6px}
.spec .v{color:#fff; font-size:16px; font-weight:600; line-height:1.35}
.spec .v small{display:block; color:var(--text-2); font-weight:400; font-size:13px; margin-top:4px}

.feature-grid{display:grid; grid-template-columns:repeat(auto-fit, minmax(260px, 1fr)); gap:14px; margin:18px 0}
.feature{
  padding:22px; border:1px solid var(--border); border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,0));
  transition:.18s;
}
.feature:hover{border-color:rgba(212,175,55,.3); transform:translateY(-2px)}
.feature .ico{
  width:46px; height:46px; border-radius:12px;
  background:var(--gold-dim); border:1px solid rgba(212,175,55,.3);
  color:var(--gold); display:grid; place-items:center; font-size:22px; margin-bottom:14px;
}
.feature h4{margin:0 0 8px; color:#fff; font-family:'Inter'; font-size:16px}
.feature p{margin:0; color:var(--text-2); font-size:14.5px; line-height:1.55}

/* ===== Flow diagram (simple ASCII-style box) ===== */
.flow{
  margin:18px 0; padding:20px;
  border:1px solid var(--border); border-radius:var(--radius);
  background:linear-gradient(180deg, rgba(212,175,55,.03), rgba(255,255,255,0));
  font-family:'JetBrains Mono','Menlo',monospace; font-size:12.5px;
  color:var(--text-2); overflow-x:auto; white-space:pre; line-height:1.55;
}
.flow .arr{color:var(--gold)}
.flow .acc{color:var(--gold-2)}

/* ===== FAQ ===== */
.faq details{
  border:1px solid var(--border); border-radius:var(--radius-sm);
  background:rgba(255,255,255,.02); margin:10px 0; padding:0;
  transition:.18s;
}
.faq details[open]{border-color:rgba(212,175,55,.3); background:rgba(212,175,55,.04)}
.faq summary{
  cursor:pointer; padding:14px 18px;
  font-weight:600; color:#fff; font-family:'Inter';
  list-style:none; display:flex; gap:10px; align-items:center; justify-content:space-between;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+"; color:var(--gold); font-size:22px; font-weight:300;
  width:24px; text-align:center; flex-shrink:0;
}
.faq details[open] summary::after{content:"−"}
.faq summary .q{color:var(--gold); font-weight:700; font-size:13px}
.faq .ans{padding:0 18px 16px; color:var(--text-2)}
.faq .ans p{margin:0 0 8px}

/* ===== Footer ===== */
.foot{
  border-top:1px solid var(--border);
  background:var(--bg-2);
  padding:48px 24px 32px;
  color:var(--text-2); font-size:14px;
}
.foot-inner{max-width:var(--maxw); margin:0 auto; display:grid; grid-template-columns:repeat(auto-fit, minmax(220px, 1fr)); gap:32px}
.foot h5{color:#fff; margin:0 0 14px; font-family:'Inter'; font-size:13px; letter-spacing:.15em; text-transform:uppercase}
.foot ul{list-style:none; padding:0; margin:0}
.foot li{margin:6px 0}
.foot .legal{margin-top:32px; padding-top:20px; border-top:1px solid var(--border); display:flex; justify-content:space-between; flex-wrap:wrap; gap:8px; color:var(--text-3); font-size:12px}

/* ===== Print ===== */
@media print{
  body{background:#fff;color:#000}
  .topbar, .toc-col, .toc-toggle, .foot, .hero::before{display:none !important}
  .shell{grid-template-columns:1fr; padding:0}
  .content{max-width:100%}
  section.chapter{page-break-inside:avoid; border-color:#888}
  a{color:#000; text-decoration:underline}
  figure{border-color:#888}
  table th{background:#eee; color:#000}
}

/* ===== Mobile ===== */
@media (max-width: 640px){
  .topnav a span{display:none}
  .hero{padding:48px 18px 36px}
  .shell{padding:32px 18px 56px}
  .step{grid-template-columns:48px 1fr; gap:12px; padding:14px}
  .step .badge{width:40px; height:40px; font-size:14px}
  .lang-switch{display:none}
  .topbar-inner{padding:12px 16px}

/* device page grid — used by section 7 (every page illustration) */
.page-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px;margin:18px 0 24px}
.page-grid figure{margin:0;background:#0a0a0a;border:1px solid var(--border);border-radius:14px;padding:14px;text-align:center}
.page-grid figure img{display:block;width:100%;height:auto;max-width:480px;margin:0 auto 10px;border-radius:8px;background:#000}
.page-grid figure figcaption{font-size:13px;color:var(--text-2);line-height:1.45}
.page-grid figure figcaption strong{color:var(--text)}
}