.filedrop{border:2px dashed var(--line-strong);border-radius:var(--radius);background:var(--paper);padding:34px 24px;text-align:center;transition:border-color .15s ease,background .15s ease}.filedrop.is-dragging{border-color:var(--brand);background:var(--brand-soft)}.filedrop.is-loaded{padding:18px 20px;text-align:left;border-style:solid;border-color:var(--line)}.filedrop-icon{width:46px;height:46px;margin:0 auto 12px;border-radius:50%;background:var(--canvas);color:var(--ink-faint);font-size:24px;line-height:46px}.filedrop-title{margin:0 0 4px;font-weight:600;font-size:16px}.filedrop-hint{margin:0 0 16px;color:var(--ink-soft);font-size:13.5px}.filedrop-loaded{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between}.filedrop-file{display:flex;gap:12px;align-items:center;min-width:0}.filedrop-badge{flex:none;background:var(--ok-soft);color:var(--ok);border-radius:7px;padding:6px 10px;font-size:12px;font-weight:700;letter-spacing:.04em}.filedrop-name{font-weight:600;word-break:break-all}.filedrop-meta{color:var(--ink-soft);font-size:13px}.filedrop-actions{display:flex;gap:8px}.preview{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.preview-scroll{overflow-x:auto;max-height:460px;overflow-y:auto}.preview-table{border-collapse:collapse;font-size:12.5px;white-space:nowrap;min-width:100%}.preview-table th,.preview-table td{border-right:1px solid var(--line);border-bottom:1px solid var(--line);padding:6px 10px;text-align:left}.preview-table thead th{position:sticky;background:var(--canvas);z-index:1}.preview-letters th{top:0;color:var(--ink-faint);font-weight:600;font-size:11px;text-align:center;background:#eef1f6}.preview-table thead tr:last-child th{top:25px;font-weight:600;color:var(--ink-soft)}.preview-table td.num{text-align:right;font-variant-numeric:tabular-nums}.preview-table tbody tr.row-vat td{background:#fffdf5}.preview-table tbody tr:hover td{background:var(--brand-soft)}.preview-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-soft)}.summary{display:flex;flex-direction:column;gap:14px}.summary-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px}.tile{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;gap:1px}.tile.is-strong{border-color:var(--line-strong);background:linear-gradient(180deg,#fff,#fbfcfe)}.tile-label{font-size:12.5px;color:var(--ink-soft)}.tile-value{font-size:22px;font-weight:700;font-variant-numeric:tabular-nums;letter-spacing:-.01em}.tile-unit{font-size:12.5px;color:var(--ink-faint)}.summary-split{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:12px}.summary-money{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--line-strong);border-radius:var(--radius);padding:13px 16px;display:flex;flex-direction:column;gap:2px}.summary-money strong{font-size:21px;font-variant-numeric:tabular-nums}.summary-money-tag{align-self:flex-start;font-size:12px;font-weight:700;border-radius:999px;padding:2px 10px}.tag-vat{background:var(--brand-soft);color:var(--brand)}.tag-novat{background:var(--canvas);color:var(--ink-soft)}.summary-money-sub{font-size:12.5px;color:var(--ink-soft)}.summary-check{border-radius:var(--radius);padding:11px 15px;font-size:13.5px;line-height:1.55}.summary-check.is-ok{background:var(--ok-soft);color:var(--ok)}.summary-check.is-warn{background:var(--warn-soft);color:var(--warn)}.summary-warnings{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}.summary-warnings-head{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:10px}.summary-warnings-head h3{font-size:15px;display:flex;align-items:center;gap:8px}.pill{font-size:12px;font-weight:600;border-radius:999px;padding:1px 9px}.pill-danger{background:var(--danger-soft);color:var(--danger)}.pill-warn{background:var(--warn-soft);color:var(--warn)}.btn-small{padding:5px 12px;font-size:13px}.summary-warning-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;max-height:320px;overflow-y:auto}.summary-warning-list li{display:flex;flex-wrap:wrap;gap:4px 10px;align-items:baseline;font-size:13.5px;padding:7px 11px;border-radius:8px;background:var(--canvas)}.summary-warning-list li.is-error{background:var(--danger-soft);color:var(--danger)}.summary-warning-list li.is-warn{background:var(--warn-soft);color:var(--warn)}.summary-warning-list code{background:#ffffffa6;border-color:#00000014;flex:none}.settings{overflow:hidden}.settings-head{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:none;border:0;text-align:left}.settings-head-text{font-weight:600}.settings-note{display:block;font-weight:400;font-size:13px;color:var(--ink-soft)}.settings-caret{color:var(--ink-faint);font-size:18px;transition:transform .15s ease}.settings-caret.is-open{transform:rotate(180deg)}.settings-body{border-top:1px solid var(--line);padding:18px}.settings-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px 18px}.settings-field{display:flex;flex-direction:column;gap:5px}.settings-label{font-size:13.5px;font-weight:600;color:var(--ink)}.settings-hint{font-size:12.5px;color:var(--ink-soft)}.settings-checks{display:flex;flex-wrap:wrap;gap:8px 22px;margin-top:18px;padding-top:14px;border-top:1px dashed var(--line)}.settings-check{display:flex;align-items:center;gap:8px;font-size:14px}.settings-check input{width:auto;accent-color:var(--brand)}.settings-reset{margin-top:16px}.page{min-height:100vh;display:flex;flex-direction:column}.page-head{background:linear-gradient(135deg,#1a2432,#2b3648);color:#fff;border-bottom:4px solid var(--accent)}.page-head-inner{max-width:1180px;margin:0 auto;padding:26px 24px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}.page-head h1{font-size:22px;letter-spacing:-.01em}.page-head p{margin:6px 0 0;color:#b9c3d1;font-size:14px;max-width:70ch}.page-head-mark{font-weight:700;font-size:13px;letter-spacing:.08em;color:#1a2432;background:var(--accent);border-radius:999px;padding:6px 16px;white-space:nowrap}.page-body{flex:1;width:100%;max-width:1180px;margin:0 auto;padding:26px 24px 40px;display:flex;flex-direction:column;gap:26px}.step-head{display:flex;align-items:center;gap:10px;margin-bottom:12px}.step-number{flex:none;width:26px;height:26px;border-radius:50%;background:var(--ink);color:#fff;font-size:13px;font-weight:700;display:grid;place-items:center}.step-head h2{font-size:16.5px}.step-body{display:flex;flex-direction:column;gap:14px}.alert{background:var(--danger-soft);color:var(--danger);border-radius:var(--radius);padding:11px 15px;font-size:14px}.muted{margin:0;color:var(--ink-faint);font-size:14px}.rulebox{margin:0;padding:14px 18px 14px 34px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);font-size:13.5px;color:var(--ink-soft);display:flex;flex-direction:column;gap:5px}.rulebox strong{color:var(--ink)}.downloads{display:flex;flex-direction:column;gap:14px;align-items:flex-start}.downloads-note{background:var(--warn-soft);color:var(--warn);border-radius:var(--radius);padding:11px 15px;font-size:13.5px}.downloads-note.is-danger{background:var(--danger-soft);color:var(--danger)}.downloads-note strong{font-weight:700}.download-card.is-credit{border-color:#f3c2c8;background:linear-gradient(180deg,#fff,var(--danger-soft))}.download-card-tag{display:inline-block;margin-right:6px;background:var(--danger-soft);color:var(--danger);border-radius:999px;padding:1px 9px;font-size:12px;font-weight:700}.downloads-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:12px;width:100%}.download-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:15px 17px;display:flex;flex-direction:column;gap:4px;align-items:flex-start}.download-card-name{font-weight:600;font-size:14px;word-break:break-all}.download-card-meta{font-size:13px;color:var(--ink-soft);margin-bottom:8px}.page-foot{border-top:1px solid var(--line);background:var(--paper);padding:16px 24px;text-align:center;font-size:13px;color:var(--ink-soft)}:root{--ink: #16202c;--ink-soft: #5a6879;--ink-faint: #8b97a6;--line: #e2e7ee;--line-strong: #cbd3de;--paper: #ffffff;--canvas: #f4f6fa;--brand: #d40511;--brand-soft: #fdecec;--accent: #ffcc00;--ok: #157347;--ok-soft: #e7f5ed;--warn: #9a6200;--warn-soft: #fff6e2;--danger: #b02a37;--danger-soft: #fdeaec;--radius: 10px;--shadow: 0 1px 2px rgba(22, 32, 44, .06), 0 6px 20px rgba(22, 32, 44, .05);--font: "Sarabun", "Noto Sans Thai", "Leelawadee UI", "Segoe UI", system-ui, sans-serif;--mono: "Cascadia Mono", Consolas, "Courier New", monospace}*{box-sizing:border-box}body{margin:0;background:var(--canvas);color:var(--ink);font-family:var(--font);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3{margin:0;line-height:1.35;font-weight:700}button{font-family:inherit;font-size:inherit;cursor:pointer}input,select{font-family:inherit;font-size:inherit;color:inherit;padding:8px 11px;border:1px solid var(--line-strong);border-radius:8px;background:var(--paper);width:100%}input:focus,select:focus{outline:2px solid rgba(212,5,17,.35);outline-offset:1px;border-color:var(--brand)}code{font-family:var(--mono);font-size:.9em;background:var(--canvas);border:1px solid var(--line);border-radius:5px;padding:1px 5px}.btn{border:1px solid transparent;border-radius:8px;padding:10px 18px;font-weight:600;transition:filter .15s ease,background .15s ease}.btn:disabled{opacity:.45;cursor:not-allowed}.btn-primary{background:var(--brand);color:#fff}.btn-primary:not(:disabled):hover{filter:brightness(1.1)}.btn-ghost{background:var(--paper);border-color:var(--line-strong);color:var(--ink)}.btn-ghost:not(:disabled):hover{background:var(--canvas)}.card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}