:root{--orange:#ff5a14;--ink:#111318;--panel:#1a1d22;--line:rgba(255,255,255,.15);--muted:#9ca0a7;--mono:ui-monospace,SFMono-Regular,Menlo,monospace;--sans:Inter,"Noto Sans Thai","Helvetica Neue",Arial,sans-serif}
*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:#111318;color:#fff;font-family:var(--sans)}a{color:inherit;text-decoration:none}button,input{font:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.viewer-header{position:sticky;z-index:20;top:0;min-height:76px;padding:12px clamp(18px,3vw,48px);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:28px;background:#090a0c;border-bottom:1px solid var(--line)}
.viewer-brand{display:flex;align-items:center;gap:11px;width:max-content}.viewer-brand>span{display:grid;place-items:center;width:42px;height:42px;background:var(--orange);font:700 11px var(--mono)}.viewer-brand b{font:700 8px/1.08 var(--mono);letter-spacing:.15em}.viewer-title{text-align:center}.viewer-title small{display:block;margin-bottom:5px;color:var(--orange);font:600 8px var(--mono);letter-spacing:.16em}.viewer-title strong{font-size:14px}.viewer-back{justify-self:end;border:1px solid rgba(255,255,255,.28);padding:11px 15px;font-size:11px}.viewer-back span{margin-left:12px;color:var(--orange)}
.pdf-toolbar{position:sticky;z-index:19;top:76px;min-height:60px;padding:9px clamp(12px,3vw,48px);display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap;background:rgba(17,19,24,.94);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.tool-group{display:flex;align-items:center;gap:6px}.pdf-toolbar button,.tool-button{width:39px;height:39px;display:grid;place-items:center;border:1px solid var(--line);background:#20242a;color:#fff;cursor:pointer;transition:.2s}.pdf-toolbar button:hover,.tool-button:hover,.pdf-toolbar button:focus-visible,.tool-button:focus-visible{border-color:var(--orange);color:var(--orange)}.pdf-toolbar button:disabled{opacity:.3;cursor:not-allowed}.pdf-toolbar .tool-text{width:auto;padding:0 13px;font-size:10px}.page-control{height:39px;display:flex;align-items:center;border:1px solid var(--line);background:#20242a}.page-control input{width:46px;height:37px;padding:0 5px;border:0;background:transparent;color:#fff;text-align:right;outline:0}.page-control b{padding-right:10px;color:var(--muted);font:500 10px var(--mono)}.pdf-toolbar output{width:52px;color:#d4d6d9;text-align:center;font:600 9px var(--mono)}.tool-source{margin-left:4px;padding:10px 13px;border:1px solid rgba(255,90,20,.55);color:#f2f3f4;font-size:10px;white-space:nowrap}.tool-source:hover{background:var(--orange);color:#111}
.pdf-stage{position:relative;min-height:calc(100vh - 136px);padding:34px 24px 72px;display:flex;justify-content:center;align-items:flex-start;overflow:auto;background-color:#171a1f;background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:36px 36px}.pdf-stage canvas{display:block;max-width:none;background:#fff;box-shadow:0 24px 80px rgba(0,0,0,.48)}.pdf-status{position:absolute;top:50%;left:50%;margin:0;transform:translate(-50%,-50%);color:var(--muted);font:600 10px var(--mono);letter-spacing:.12em}.pdf-status.is-error{color:#ff8f60}.pdf-status.is-hidden{display:none}
@media(max-width:900px){.viewer-header{grid-template-columns:1fr auto}.viewer-title{display:none}.pdf-toolbar{top:76px;justify-content:flex-start;overflow-x:auto;flex-wrap:nowrap}.tool-source{display:none}.pdf-stage{padding:22px 12px 60px}}
@media(max-width:560px){.viewer-header{min-height:66px;padding:10px 14px}.viewer-brand>span{width:38px;height:38px}.viewer-back{padding:10px;font-size:10px}.pdf-toolbar{top:66px;padding:8px}.pdf-toolbar button,.tool-button{width:36px;height:36px}.pdf-toolbar .tool-text{display:none}.pdf-stage{min-height:calc(100vh - 119px)}}