@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/plex-thai-400.woff2) format("woff2");unicode-range:U+02D7,U+0303,U+0331,U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/plex-latin-400.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/plex-thai-500.woff2) format("woff2");unicode-range:U+02D7,U+0303,U+0331,U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:500;font-display:swap;src:url(/fonts/plex-latin-500.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/plex-thai-600.woff2) format("woff2");unicode-range:U+02D7,U+0303,U+0331,U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:600;font-display:swap;src:url(/fonts/plex-latin-600.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/plex-thai-700.woff2) format("woff2");unicode-range:U+02D7,U+0303,U+0331,U+0E01-0E5B,U+200C-200D,U+25CC}
@font-face{font-family:"IBM Plex Sans Thai Looped";font-style:normal;font-weight:700;font-display:swap;src:url(/fonts/plex-latin-700.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"Chonburi";font-style:normal;font-weight:400;font-display:swap;src:url(/fonts/brand.woff2) format("woff2")}

:root{
--bg:#F4F1F0; --surface:#FFFFFF; --line:#E8E0DD; --ink:#211918; --muted:#6E625F;
--lacquer:#8E1A1F; --leaf:#F2C14E; --leaf-2:#F5DCA0; --gold-ink:#835700; --chip:#F0E8E6;
--num:#1C873C; --up:#1C873C; --down:#C62F25; --est:#946500; --tab-on:#8E1A1F; --tab-pill:#F7E3E1; --sel:#8E1A1F; --up-s:#146B2F; --down-s:#AE281F; --focus:#1F5FBF;
--c-grid:#ECE5E2; --c-axis:#7A6E6A; --c-up:#1C873C; --c-down:#C62F25; --c-prev:#B9AEAA;
--f-brand:"Chonburi","IBM Plex Sans Thai Looped",serif;
--f-body:"IBM Plex Sans Thai Looped","Noto Sans Thai Looped","Sarabun",system-ui,sans-serif;
--nav-h:62px;
color-scheme:light;
}
@media (prefers-color-scheme: dark){
:root:not([data-theme="light"]){
--bg:#0F0D0E; --surface:#1C1B1F; --line:#2E2C31; --ink:#F4EFED; --muted:#A49FA8;
--lacquer:#6E1217; --gold-ink:#E9BE55; --chip:#28262B;
--num:#86D28A; --up:#86D28A; --down:#FF7F70; --est:#F2C14E; --tab-on:#F2C14E; --tab-pill:#3A2F1A; --sel:#E9BE55; --up-s:#86D28A; --down-s:#FF7F70; --focus:#8AB4FF;
--c-grid:#2C2A30; --c-axis:#9C97A1; --c-up:#86D28A; --c-down:#FF7F70; --c-prev:#55515A;
color-scheme:dark;
}
}
:root[data-theme="dark"]{
--bg:#0F0D0E; --surface:#1C1B1F; --line:#2E2C31; --ink:#F4EFED; --muted:#A49FA8;
--lacquer:#6E1217; --gold-ink:#E9BE55; --chip:#28262B;
--num:#86D28A; --up:#86D28A; --down:#FF7F70; --est:#F2C14E; --tab-on:#F2C14E; --tab-pill:#3A2F1A; --sel:#E9BE55; --up-s:#86D28A; --down-s:#FF7F70; --focus:#8AB4FF;
--c-grid:#2C2A30; --c-axis:#9C97A1; --c-up:#86D28A; --c-down:#FF7F70; --c-prev:#55515A;
color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.5;
padding-left:max(12px, env(safe-area-inset-left, 0px));padding-right:max(12px, env(safe-area-inset-right, 0px));
padding-block:0 calc(var(--nav-h) + 24px + env(safe-area-inset-bottom, 0px));-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top, 0px);z-index:10;background:var(--surface)}
.app{max-width:480px;margin-inline:auto;display:flex;flex-direction:column;gap:12px}
.num,.pt,.stats,.spot,.hist,.tbl,.tp{font-variant-numeric:tabular-nums}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
a{color:inherit} button{font:inherit;color:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:6px}
h1{margin:0;font-size:19px;font-weight:700;line-height:1.35}
h2{margin:0;font-size:16px;font-weight:600}
p{margin:0}
[hidden]{display:none!important}
.up{color:var(--up)} .down{color:var(--down)} .flat{color:var(--muted)}
.pill.up,.pill .up,.chip .up{color:var(--up-s)} .pill.down,.pill .down,.chip .down{color:var(--down-s)}
.topbar{position:sticky;top:env(safe-area-inset-top, 0px);z-index:5;background:var(--surface);border-bottom:1px solid var(--line);
margin-inline:-12px;padding:8px 12px;display:flex;align-items:center;gap:10px}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none}
.logo{display:block;flex:none;border-radius:9px;box-shadow:0 0 0 1px rgba(0,0,0,.08)}
.brand-name{font-family:var(--f-brand);font-size:22px;line-height:1;color:var(--lacquer)}
:root[data-theme="dark"] .brand-name{color:var(--leaf)}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]) .brand-name{color:var(--leaf)}}
.tp{margin-left:auto;display:flex;align-items:baseline;gap:6px;text-decoration:none;white-space:nowrap}
.tp b{font-size:18px;font-weight:700}
.tp i{font-style:normal;font-size:13px;font-weight:700}
.icon-btn{flex:none;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:transparent;display:grid;place-items:center}
.card{background:var(--surface);border-radius:16px;box-shadow:0 0 0 1px var(--line)}
.world{padding:10px 12px 8px}
.kitco{display:block;background:#FFFFFF;border-radius:10px;padding:4px;max-width:340px;margin-inline:auto;position:relative;aspect-ratio:300/200}
.kitco img{display:block;width:100%;height:100%;object-fit:contain}
.kitco-off{display:grid;place-items:center;height:100%;color:#6E625F;font-size:13px}
.spot{display:grid;grid-template-columns:1fr 1fr;padding-top:6px}
.spot div{display:flex;align-items:baseline;justify-content:center;gap:6px}
.spot div+div{border-left:1px solid var(--line)}
.spot div>span{font-size:13px;color:var(--muted)}
.spot b{font-size:22px;font-weight:700}
.price{padding:4px 0 2px;margin-top:6px;border-top:1px solid var(--line)}
.tabs{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);margin-inline:-12px;padding-inline:12px}
.tabs button{border:0;background:none;padding:9px 4px 8px;font-size:14.5px;font-weight:600;color:var(--muted);border-bottom:2.5px solid transparent;margin-bottom:-1px}
.tabs button[aria-pressed="true"]{color:var(--tab-on);border-bottom-color:var(--tab-on)}
.pt{width:100%;border-collapse:collapse;margin-top:4px}
.pt thead th{font-size:13.5px;font-weight:500;color:var(--muted);text-align:right;padding:6px 0 2px 10px}
.pt tbody th{text-align:left;font-size:16px;font-weight:600;padding:10px 0;white-space:nowrap}
.pt td{text-align:right;font-weight:700;font-size:clamp(21px,6.2vw,30px);color:var(--num);padding:10px 0 10px 14px;line-height:1.1;white-space:nowrap}
.pt td.d{font-size:clamp(15px,4.4vw,20px);padding-left:10px}
.pt tbody tr+tr>*{border-top:1px solid var(--line)}
.pt tr.est th{color:var(--est)}
.pt tr.dn td{color:var(--down)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-inline:-12px}
.stats div{display:flex;flex-direction:column;align-items:center;padding:7px 2px 4px}
.stats div+div{border-left:1px solid var(--line)}
.stats div>span{font-size:11.5px;color:var(--muted)}
.stats b{font-size:18px;font-weight:700}
.fn{font-size:12px;color:var(--muted);text-align:center;padding:6px 0 2px;border-top:1px solid var(--line);margin-inline:-12px}
.pill{display:inline-flex;align-items:center;gap:3px;border-radius:999px;padding:1px 9px;font-weight:700;font-size:13.5px;background:var(--chip);white-space:nowrap}
.actions{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.act{display:flex;align-items:center;justify-content:center;gap:6px;padding:9px 6px;border-radius:12px;border:1px solid var(--line);background:var(--surface);font-size:14px;font-weight:500}
.act svg{color:var(--gold-ink);flex:none}
.ad{min-height:100px;display:grid;place-items:center;overflow:hidden}
.ad:empty{min-height:0}
.mtabs{display:grid;grid-template-columns:repeat(4,1fr);border-bottom:1px solid var(--line)}
.mtabs a{display:block;text-align:center;text-decoration:none;padding:11px 2px 9px;font-size:15px;font-weight:600;color:var(--muted);border-bottom:2.5px solid transparent;margin-bottom:-1px}
.mtabs a[aria-current="page"]{color:var(--tab-on);border-bottom-color:var(--tab-on)}
.hist-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line)}
.hist-head small{font-size:12.5px;color:var(--muted);font-weight:500}
.hist{width:100%;border-collapse:collapse;font-size:16px}
.hist td{padding:9px 12px 9px 0;border-bottom:1px solid var(--line);text-align:right;white-space:nowrap}
.hist th{font-size:12.5px;font-weight:500;color:var(--muted);text-align:right;padding:6px 12px 4px 0;border-bottom:1px solid var(--line)}
.hist th:first-child,.hist td:first-child{text-align:left;padding-left:12px;white-space:normal}
.rounds td:nth-child(2){text-align:center;color:var(--muted);font-size:14px}
.rounds th:nth-child(2){text-align:center}
.hist td:first-child{font-weight:600}
.hist td.d{font-weight:700}
.hist tr:last-child td{border-bottom:0}
.more{display:block;width:100%;border:0;border-top:1px solid var(--line);background:none;padding:10px;font-size:14px;font-weight:600;color:var(--gold-ink);border-radius:0 0 16px 16px}
.lead{padding:10px 12px;font-size:14px;color:var(--muted);border-top:1px solid var(--line)}
.lead a{color:var(--gold-ink);font-weight:600}
.sec{padding:12px}
.sec h2{margin-bottom:6px}
.sec h2 small{font-weight:500;color:var(--muted);font-size:13px}
.tbl{width:100%;border-collapse:collapse;font-size:16.5px}
.tbl th{font-size:12.5px;font-weight:500;color:var(--muted);text-align:right;padding:4px 0 4px 8px}
.tbl th:first-child,.tbl td:first-child{text-align:left;padding-left:0}
.tbl td{text-align:right;padding:8px 0 8px 8px;border-top:1px solid var(--line);font-weight:700;white-space:nowrap}
.tbl td:first-child{font-weight:500;color:var(--muted);font-size:15px}
.note{font-size:12.5px;color:var(--muted);margin-top:6px}
.primary{background:var(--lacquer);color:#FFF6E3;border:0;border-radius:10px;padding:8px 14px;font-weight:600;font-size:14.5px;text-decoration:none}
.install{display:flex;align-items:center;gap:10px;padding:12px}
.install p{flex:1;font-size:14.5px;font-weight:600}
.steps{padding:0 12px 12px;font-size:14px;color:var(--muted)}
.steps ol{margin:4px 0 8px;padding-left:20px}
details{border-top:1px solid var(--line);padding:9px 0}
details:first-of-type{border-top:0}
summary{cursor:pointer;font-weight:500;font-size:15px}
details p{margin-top:4px;font-size:14px;color:var(--muted)}
.foot{font-size:12px;color:var(--muted);display:flex;flex-wrap:wrap;gap:6px;padding:4px 2px}
.foot span{flex-basis:100%;margin-bottom:2px}
.foot a{display:inline-flex;align-items:center;min-height:34px;padding:4px 12px;border-radius:999px;background:var(--surface);box-shadow:0 0 0 1px var(--line);color:var(--ink);font-size:13px;font-weight:500;text-decoration:none}
.foot a:active{background:var(--chip)}
.chart{display:block;width:100%;height:auto}
.chart .g{stroke:var(--c-grid);stroke-width:1}
.chart .ax{fill:var(--c-axis);font-size:11px;font-family:var(--f-body)}
.chart .ln{fill:none;stroke-width:2.2;stroke-linejoin:round}
.chart .ln.up{stroke:var(--c-up)} .chart .ln.down{stroke:var(--c-down)} .chart .ln.flat{stroke:var(--muted)}
.chart .dot.up{fill:var(--c-up)} .chart .dot.down{fill:var(--c-down)} .chart .dot.flat{fill:var(--muted)}
.chart .prev{stroke:var(--c-prev);stroke-dasharray:4 4}
figure{margin:0}
.chips{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}
.chip{background:var(--chip);border-radius:10px;padding:7px 8px;display:flex;flex-direction:column}
.chip>span{font-size:11.5px;color:var(--muted)}
.chip b{font-size:16px;font-weight:700}
.chip small{font-size:11px;color:var(--muted)}
.form{display:grid;gap:12px}
.seg{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.seg input{position:absolute;opacity:0;pointer-events:none}
.seg label{text-align:center;padding:10px 6px;font-weight:600;font-size:15px;color:var(--muted);cursor:pointer}
.seg input:checked+label{background:var(--lacquer);color:#FFF6E3}
.seg input:focus-visible+label{outline:2px solid var(--focus);outline-offset:-2px}
.field{display:grid;gap:4px}
.field label{font-size:13.5px;color:var(--muted);font-weight:500}
.row{display:grid;grid-template-columns:1fr 120px;gap:8px}
.inp{width:100%;font:inherit;font-size:20px;font-weight:700;padding:9px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface);color:var(--ink);font-variant-numeric:tabular-nums}
select.inp{font-size:16px;font-weight:600}
.quick{display:flex;flex-wrap:wrap;gap:6px}
.quick button{border:1px solid var(--line);background:var(--chip);border-radius:999px;padding:4px 12px;font-size:14px;font-weight:600}
.res{display:grid;gap:0}
.res div+div{border-top:1px solid var(--line)}
.res div{display:flex;justify-content:space-between;align-items:baseline;padding:9px 0}
.res span{color:var(--muted);font-size:14.5px}
.res b{font-size:24px;font-weight:700;color:var(--num)}
.res div.sub b{font-size:17px;color:var(--ink)}
.links{list-style:none;margin:0;padding:0}
.links li+li{border-top:1px solid var(--line)}
.links a{display:flex;justify-content:space-between;align-items:center;gap:8px;padding:11px 2px;text-decoration:none;font-size:15.5px}
.links a::after{content:"›";color:var(--muted);font-size:20px;line-height:1}
.seg3{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.seg3 button{border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:9px 4px;font-weight:600;font-size:14.5px}
.seg3 button[aria-pressed="true"]{background:var(--lacquer);color:#FFF6E3;border-color:var(--lacquer)}
.prose{padding:14px 14px 16px;font-size:15.5px}
.prose h1{margin-bottom:8px}
.prose h2{margin:16px 0 6px}
.prose p,.prose ul{margin:0 0 10px}
.prose ul{padding-left:20px}
.prose a{color:var(--gold-ink);font-weight:600}
.tabbar{position:fixed;left:0;right:0;bottom:0;z-index:6;background:var(--surface);border-top:1px solid var(--line);
padding-left:max(8px, env(safe-area-inset-left, 0px));padding-right:max(8px, env(safe-area-inset-right, 0px));padding-bottom:env(safe-area-inset-bottom, 0px)}
.tabbar ul{list-style:none;margin:0 auto;padding:0;max-width:480px;display:grid;grid-template-columns:repeat(5,1fr);height:var(--nav-h)}
.tabbar a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;height:100%;text-decoration:none;font-size:12px;font-weight:500;color:var(--ink);-webkit-tap-highlight-color:transparent}
.tabbar svg{width:23px;height:23px;padding:3px 14px;box-sizing:content-box;border-radius:999px;color:var(--gold-ink);transition:background .15s}
.tabbar a:active svg{background:var(--chip)}
.tabbar a[aria-current="page"]{color:var(--tab-on);font-weight:700}
.tabbar a[aria-current="page"] svg{background:var(--tab-pill);color:var(--tab-on)}
.toast{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(var(--nav-h) + 14px + env(safe-area-inset-bottom, 0px));z-index:12;
background:var(--ink);color:var(--bg);padding:8px 14px;border-radius:10px;font-size:14px;max-width:calc(100% - 32px);text-align:center;opacity:0;pointer-events:none;transition:opacity .2s}
.toast.show{opacity:1}
.copy-fallback{width:100%;min-height:100px;font:inherit;font-size:13.5px;border:1px solid var(--line);border-radius:10px;padding:8px;background:var(--surface);color:var(--ink)}
.flash{animation:flash 1.6s ease-out}
@keyframes flash{0%{background:color-mix(in srgb, var(--leaf) 35%, transparent)}100%{background:transparent}}
@media (prefers-reduced-motion: reduce){.toast{transition:none}.flash{animation:none}}
@media (max-width:370px){ .pt td{padding-left:8px} .pt td.d{padding-left:6px} .pt tbody th{font-size:15px} .chips{grid-template-columns:1fr 1fr} }
.act.on{border-color:var(--gold-ink)}
.act.on svg{color:var(--up)}
.act.on::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--up);margin-left:-2px}
.sheet{position:fixed;inset:0;z-index:11;display:flex;align-items:flex-end;justify-content:center;
padding-left:max(12px, env(safe-area-inset-left, 0px));padding-right:max(12px, env(safe-area-inset-right, 0px));padding-bottom:calc(12px + env(safe-area-inset-bottom, 0px))}
.sheet[hidden]{display:none!important}
.sheet-bg{position:absolute;inset:0;background:rgba(15,10,10,.45)}
.sheet-card{position:relative;width:100%;max-width:480px;max-height:calc(100vh - 40px);overflow-y:auto;padding:14px 14px 16px;border-radius:18px}
.sheet-head{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:6px}
.sheet-head h2{display:flex;align-items:center;gap:6px;font-size:17px}
.sheet-head h2 svg{color:var(--gold-ink)}
.ns-st{font-size:14px;color:var(--ink);background:var(--chip);border-radius:10px;padding:8px 10px;margin:0 0 10px}
.ns-modes{border:0;margin:0;padding:0;display:grid;gap:8px}
.ns-opt{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;border:1px solid var(--line);border-radius:12px;cursor:pointer}
.ns-opt input{margin:4px 0 0;width:18px;height:18px;accent-color:var(--sel);flex:none}
.ns-opt span{display:flex;flex-direction:column;min-width:0}
.ns-opt b{font-size:15.5px}
.ns-opt small{font-size:13px;color:var(--muted)}
.ns-opt:has(input:checked){border-color:var(--sel);box-shadow:0 0 0 1px var(--sel)}
.ns-modes[hidden]{display:none}
.ns-help{font-size:14px;margin-top:10px;padding:10px 12px;border-radius:10px;border:1px dashed var(--gold-ink)}
.ns-help ol{margin:0;padding-left:20px}
.ns-act{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:12px}
.ns-act .primary{grid-column:1/-1;padding:12px;font-size:16px}
.ns-act button[disabled]{opacity:.55;cursor:default}
html.ns-open{overflow:hidden}
.byline{font-size:12.5px;color:var(--muted)}
.prose ol{padding-left:22px;margin:0 0 10px}
.prose li+li{margin-top:4px}
.prose table{margin:4px 0}
.formula{background:var(--chip);border-radius:10px;padding:10px 12px;font-weight:700;font-variant-numeric:tabular-nums;text-align:center}
.tw{overflow-x:auto;margin:0 0 6px}
.tw .tbl{min-width:100%}
.tbl caption{caption-side:top;text-align:left;font-size:13px;color:var(--muted);padding-bottom:4px}
.toc{font-size:14px;line-height:1.9;margin:0 0 6px}
.toc a{white-space:nowrap}
.guide-list a span{display:flex;flex-direction:column;min-width:0}
.guide-list b{font-weight:600}
.guide-list small{font-size:13px;color:var(--muted);font-weight:400}
.linkbtn{border:0;background:none;padding:0;color:var(--gold-ink);font-weight:600;text-decoration:underline}
.prose h2[id]{scroll-margin-top:16px}
.howto summary{font-weight:600;font-size:15.5px;padding:2px 0}
.howto details[open] summary{color:var(--gold-ink)}
.howto ol,.howto ul{margin:8px 0 2px;padding-left:22px;font-size:14.5px}
.howto li+li{margin-top:5px}
.howto details p{font-size:14.5px;color:var(--ink);line-height:1.6}
.more-link{color:var(--gold-ink);font-weight:600;text-decoration:none}