/* Invoice Tools — shared stylesheet. "Paper on a desk". */
:root{
  --bg:#F6F2EA;
  --paper:#FFFFFF;
  --ink:#1C1C1A;
  --muted:#5B5A54;
  --line:#E4DED2;
  --line-soft:#EFEAE0;
  --accent:#1E6F5C;
  --accent-dark:#175748;
  --accent-soft:#E6F1EC;
  --danger:#9B2C2C;
  --radius:10px;
  --shadow:0 1px 2px rgba(40,30,10,.06),0 14px 36px rgba(60,40,10,.12);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 var(--font);font-variant-numeric:tabular-nums}
a{color:var(--accent-dark)}
a:hover{color:var(--accent)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
img{max-width:100%;height:auto}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:1.75rem}
h2{font-size:1.35rem;margin-top:2em}
h3{font-size:1.1rem;margin-top:1.5em}
p{margin:0 0 1em}
.wrap{max-width:1180px;margin:0 auto;padding:0 16px}
.narrow{max-width:760px}

/* Header / footer */
.site-header{padding:14px 0;border-bottom:1px solid var(--line);background:rgba(255,255,255,.55)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:700;text-decoration:none;color:var(--ink)}
.brand svg{width:26px;height:26px;flex:none}
.site-nav{display:flex;gap:16px;flex-wrap:wrap;font-size:.95rem}
.site-nav a{text-decoration:none;color:var(--muted)}
.site-nav a:hover{color:var(--accent-dark);text-decoration:underline}
.site-footer{margin-top:48px;padding:28px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem}
.site-footer .wrap{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.site-footer a{color:var(--muted)}

/* Hero */
.hero{padding:28px 0 8px}
.hero p.lead{font-size:1.05rem;color:var(--muted);max-width:760px;margin-bottom:.5em}
.privacy-line{display:inline-flex;align-items:center;gap:8px;font-size:.9rem;color:var(--accent-dark);background:var(--accent-soft);padding:6px 12px;border-radius:999px;margin:6px 0 12px}
.privacy-line svg{width:16px;height:16px;flex:none}

/* Ad slots — empty, reserved with min-height (no layout shift when ads are added) */
.ad-slot{min-height:100px;margin:12px auto;max-width:1180px}
.ad-slot--top{min-height:50px;margin:8px auto}
.ad-slot--below-tool{min-height:250px;margin-top:28px}
.ad-slot--footer{min-height:100px;margin-top:32px}
@media (min-width:768px){.ad-slot--top{min-height:90px}}

/* Tool layout */
.tool{display:grid;gap:24px;align-items:start;margin-top:12px}
@media (min-width:980px){
  .tool{grid-template-columns:minmax(360px,460px) minmax(0,1fr)}
  .preview-wrap{position:sticky;top:16px}
}
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:18px 16px 8px;min-height:100vh}
@media (min-width:980px){.form-card{min-height:640px}}
@media (min-width:480px){.form-card{padding:22px 20px 10px}}
fieldset{border:0;padding:0;margin:0 0 22px;min-width:0}
legend{font-weight:700;font-size:1.02rem;padding:0;margin-bottom:10px;color:var(--ink)}
.field{margin-bottom:12px;min-width:0}
.field label,.field .lbl{display:block;font-size:.88rem;font-weight:600;color:var(--muted);margin-bottom:4px}
.field .hint{font-size:.8rem;color:var(--muted);margin-top:4px}
input[type=text],input[type=number],input[type=date],input[type=email],input[type=tel],select,textarea{
  width:100%;font:inherit;font-size:16px;color:var(--ink);background:#fff;border:1px solid #CFC8B8;border-radius:8px;padding:10px 12px;min-height:44px;margin:0
}
textarea{resize:vertical;min-height:64px;line-height:1.4}
input:focus,select:focus,textarea:focus{outline:3px solid rgba(30,111,92,.35);border-color:var(--accent)}
input[type=number]{-moz-appearance:textfield}
input[type=number]::-webkit-inner-spin-button{opacity:.5}
input[type=file]{font-size:.9rem;padding:8px 0}
select{appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235B5A54' stroke-width='2.5'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 12px center;padding-right:34px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}
.check{display:flex;align-items:center;gap:10px;font-size:.95rem;margin:8px 0;min-height:44px}
.check input{width:22px;height:22px;accent-color:var(--accent);margin:0;flex:none}
.logo-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.logo-thumb{width:64px;height:40px;object-fit:contain;border:1px dashed var(--line);border-radius:6px;background:#fafaf7}
.btn-link{background:none;border:0;padding:0;color:var(--accent-dark);text-decoration:underline;font:inherit;font-size:.88rem;cursor:pointer;min-height:auto}

/* Line items */
.items{display:flex;flex-direction:column;gap:10px}
.item{border:1px solid var(--line);border-radius:8px;padding:10px;background:#FBFAF7;display:grid;grid-template-columns:1fr 1fr;gap:8px;position:relative}
.item .field{margin:0}
.item .span2{grid-column:1 / -1}
.item .amount{font-weight:700;text-align:right;align-self:end;padding:8px 0 10px;white-space:nowrap}
.item .remove{position:absolute;top:6px;right:6px;width:32px;height:32px;border:0;background:transparent;color:var(--muted);font-size:20px;line-height:1;border-radius:6px;cursor:pointer}
.item .remove:hover{background:#eee;color:var(--danger)}
.item-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font:inherit;font-weight:600;font-size:1rem;min-height:46px;padding:10px 18px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{border-color:#BFB8A8;background:#FCFBF8}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.btn-small{min-height:38px;font-size:.9rem;padding:6px 12px;font-weight:600}
.btn[disabled]{opacity:.6;cursor:wait}
.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:8px 0 14px}
.actions .note{flex-basis:100%;font-size:.85rem;color:var(--muted);margin:0}
.status{font-size:.9rem;color:var(--accent-dark);min-height:1.4em;margin:0 0 8px}
.status.error{color:var(--danger)}

/* Mobile sticky download bar */
.sticky-bar{position:fixed;left:0;right:0;bottom:0;z-index:20;padding:10px 12px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.94);border-top:1px solid var(--line);display:flex;gap:10px;backdrop-filter:saturate(1.2) blur(6px)}
.sticky-bar .btn{flex:1}
@media (min-width:980px){.sticky-bar{display:none}}
body.has-sticky{padding-bottom:76px}
@media (min-width:980px){body.has-sticky{padding-bottom:0}}

/* Invoice sheet (live preview) */
.sheet{background:var(--paper);box-shadow:var(--shadow);border-radius:4px;padding:28px 26px;font-size:13px;line-height:1.45;color:var(--ink);position:relative;overflow:hidden;min-height:520px}
@media (min-width:600px){.sheet{padding:40px 44px;font-size:13.5px}}
.sheet-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:26px}
.sheet-logo{max-width:150px;max-height:60px;object-fit:contain;display:block}
.sheet-from-name{font-weight:700;font-size:1.05em}
.sheet-title{text-align:right}
.sheet-title h2{margin:0;font-size:1.9em;letter-spacing:.06em;color:var(--accent);text-transform:uppercase;line-height:1.05}
.sheet-title .num{color:var(--muted);margin-top:4px}
.sheet-meta{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:22px}
.sheet-meta .block-label{font-size:.78em;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:4px;font-weight:700}
.sheet-meta .lines{white-space:pre-line}
.sheet-details{display:grid;grid-template-columns:auto 1fr;gap:3px 14px;font-size:.95em;margin-bottom:22px;align-items:baseline}
.sheet-details dt{color:var(--muted);margin:0}
.sheet-details dd{margin:0;font-weight:600}
.sheet-table-wrap{overflow-x:auto;margin-bottom:14px}
.sheet table{width:100%;border-collapse:collapse;min-width:360px}
.sheet th{text-align:left;font-size:.78em;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);border-bottom:2px solid var(--accent);padding:6px 6px;white-space:nowrap}
.sheet td{padding:8px 6px;border-bottom:1px solid var(--line-soft);vertical-align:top}
.sheet th.num,.sheet td.num{text-align:right;white-space:nowrap}
.sheet td.desc{min-width:140px}
.sheet td .sub{color:var(--muted);font-size:.9em}
.sheet-totals{display:flex;justify-content:flex-end;margin-bottom:22px;position:relative}
.sheet-totals table{width:auto;min-width:240px}
.sheet-totals td{padding:5px 6px;border:0}
.sheet-totals td:first-child{color:var(--muted);text-align:right}
.sheet-totals td.num{text-align:right;font-weight:600}
.sheet-totals tr.total td{border-top:2px solid var(--accent);font-weight:800;font-size:1.15em;color:var(--accent);padding-top:8px}
.sheet-totals tr.total td:first-child{color:var(--accent)}
.sheet-notice{background:#FBF7EA;border-left:3px solid #C9A227;padding:8px 12px;margin-bottom:18px;font-size:.95em}
.sheet-section{margin-bottom:16px}
.sheet-section h3{margin:0 0 4px;font-size:.78em;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.sheet-section .text{white-space:pre-line}
.sheet-kv{display:grid;grid-template-columns:auto 1fr;gap:2px 12px;font-size:.95em}
.sheet-kv dt{color:var(--muted);margin:0}
.sheet-kv dd{margin:0}
.sheet-sign{display:grid;grid-template-columns:2fr 1fr;gap:24px;margin-top:32px}
.sheet-sign div{border-top:1px solid var(--ink);padding-top:4px;font-size:.85em;color:var(--muted)}
.sheet-stamp{position:absolute;left:8px;top:6px;border:4px solid var(--accent);color:var(--accent);font-weight:900;font-size:2.2em;letter-spacing:.12em;padding:2px 14px;border-radius:8px;transform:rotate(-12deg);opacity:.75;pointer-events:none}
.sheet-empty{color:#6F6B62}
.sheet-foot{margin-top:26px;font-size:.85em;color:var(--muted);text-align:center}

/* App callout (hidden until enabled) */
.app-callout{margin:24px 0 0;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;display:flex;gap:14px;align-items:center}
.app-callout.is-hidden{display:none}
.app-callout .icon{width:48px;height:48px;border-radius:12px;background:var(--accent);flex:none}

/* Article / content */
.article{max-width:760px;margin:36px auto 0}
.article ul,.article ol{padding-left:1.3em}
.article li{margin-bottom:.4em}
.article table{border-collapse:collapse;width:100%;font-size:.95rem;margin-bottom:1em}
.article th,.article td{text-align:left;padding:8px 10px;border-bottom:1px solid var(--line)}
.faq details{border-top:1px solid var(--line);padding:6px 0}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:600;padding:8px 0;list-style:none;position:relative;padding-right:28px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:4px;top:6px;color:var(--accent);font-size:1.3em;font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq p{color:#33322E}
.related{margin-top:36px}
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;padding:0;list-style:none;margin:0}
.card{display:block;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px;text-decoration:none;color:var(--ink);height:100%}
.card:hover{border-color:var(--accent);box-shadow:0 6px 18px rgba(30,111,92,.12)}
.card strong{display:block;margin-bottom:4px;color:var(--accent-dark)}
.card span{font-size:.9rem;color:var(--muted)}
.hub-intro{max-width:760px}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.legal{max-width:760px}
.legal h2{font-size:1.2rem}

/* Print: only the invoice sheet */
@media print{
  @page{margin:14mm}
  body{background:#fff;padding:0!important}
  body *{visibility:hidden}
  .sheet,.sheet *{visibility:visible}
  .sheet{position:absolute;left:0;top:0;width:100%;box-shadow:none;padding:0;min-height:0;font-size:12.5px}
  .sheet-table-wrap{overflow:visible}
  .sheet-stamp{opacity:.8}
}