/* Design follows reibisch.de ("Hafen"): paper, harbour blue, sand, Newsreader / Geist / Geist Mono.
   Fonts are self-hosted: the CSP allows only 'self', and no visitor data goes to Google. */
@font-face { font-family: "Newsreader"; src: url("fonts/newsreader-latin-wght-normal.woff2") format("woff2"); font-weight: 200 800; font-display: swap; }
@font-face { font-family: "Newsreader"; font-style: italic; src: url("fonts/newsreader-latin-wght-italic.woff2") format("woff2"); font-weight: 200 800; font-display: swap; }
@font-face { font-family: "Geist"; src: url("fonts/geist-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("fonts/geist-mono-latin-wght-normal.woff2") format("woff2"); font-weight: 100 900; font-display: swap; }

:root {
  --paper: #eef2f1;
  --ink: #1a2b35;
  --deep: #26465a;
  --sand: #c9b87a;
  --sand-deep: #9f8a4e;
  --white-warm: #fbfaf6;
  --rule: rgba(38, 70, 90, 0.14);
  --soft: rgba(38, 70, 90, 0.55);
  --surface: rgba(251, 250, 246, 0.7);
  --ok: #2f6b4f;
  --ok-bg: #dce8e0;
  --warn: #7a6630;
  --warn-bg: rgba(201, 184, 122, 0.32);
  --err: #9b2c2c;
  --err-bg: #f1dcd8;
  --radius: 3px;
  --sans: "Geist", system-ui, sans-serif;
  --serif: "Newsreader", "Times New Roman", serif;
  --mono: "Geist Mono", ui-monospace, monospace;
  --gutter: clamp(16px, 4vw, 48px);
}

*, *::before, *::after { box-sizing: border-box; }
html { color-scheme: light; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 15px/1.55 var(--sans); }
a { color: var(--deep); text-underline-offset: 3px; text-decoration-color: var(--sand); }
a:hover { color: var(--sand-deep); }
h1, h2 { font-family: var(--serif); font-weight: 350; color: var(--deep); }
h1 { font-size: clamp(34px, 4.4vw, 48px); line-height: 1; letter-spacing: -0.02em; margin: 0 0 1.25rem; }
h2 { font-size: 22px; font-style: italic; line-height: 1.1; letter-spacing: -0.01em; color: var(--sand-deep); margin: 1.5rem 0 .6rem; }
h2:first-child { margin-top: 0; }
h2 small { font: 400 11px var(--mono); font-style: normal; letter-spacing: .08em; text-transform: uppercase; color: var(--soft); margin-left: .5rem; }
code { font-family: var(--mono); font-size: .8em; word-break: break-all; }
small, .muted, .hint { color: var(--soft); }
.hint { font-size: 13px; margin: .35rem 0 0; text-wrap: pretty; }
.pre { white-space: pre-line; }
.lede { max-width: 60ch; font: italic 350 19px/1.45 var(--serif); color: var(--ink); opacity: .85; text-wrap: pretty; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

/* Top bar */
.topbar { max-width: 1280px; margin: 0 auto; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 1rem;
  padding: 24px var(--gutter) 0; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font: 600 12px var(--mono); letter-spacing: .02em; color: var(--deep); }
.brand-sub { color: var(--soft); font-weight: 400; margin-left: .35rem; }
.logo { flex-shrink: 0; }
.topnav { display: flex; gap: 28px; justify-content: center; font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.topnav a { color: var(--soft); text-decoration: none; padding: 6px 0; border-bottom: 1px solid transparent; transition: color .2s ease, border-color .2s ease; }
.topnav a:hover { color: var(--deep); }
.topnav a[aria-current="page"] { color: var(--deep); border-bottom-color: var(--sand); }
.topbar-actions { display: flex; align-items: center; justify-content: flex-end; gap: 1.25rem; }

/* Wave separator, as on reibisch.de: faded edges, slow drift */
.wave-sep { overflow: hidden; margin-top: 20px; line-height: 0;
  -webkit-mask-image: linear-gradient(to right, transparent 0%, black 16%, black 84%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, black 16%, black 84%, transparent 100%); }
.wave-drift { display: block; width: calc(100% + 120px); min-width: 1400px; max-width: none; height: 34px; opacity: .5; }

main { max-width: 1280px; margin: 0 auto; padding: 40px var(--gutter) 64px; }
.page-head { display: flex; justify-content: space-between; align-items: end; gap: 1rem 2rem; flex-wrap: wrap; margin-bottom: 2rem; }
.page-head h1 { margin: 0; }

.card { background: var(--surface); border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px; }
.card.narrow { max-width: 400px; margin: 3rem auto; }
.empty { text-align: center; padding: 3rem 1rem; font: italic 350 19px var(--serif); color: var(--soft); }

/* Buttons: sand CTA (primary) and quiet outline, mono uppercase like the site */
.btn, button { font: inherit; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 40px; padding: 10px 16px;
  border: 1px solid var(--rule); border-radius: var(--radius); background: transparent; color: var(--deep);
  font: 500 12px/1 var(--mono); letter-spacing: .04em; text-transform: uppercase; text-decoration: none; white-space: nowrap; cursor: pointer;
  transition: background-color .4s ease, color .4s ease, border-color .4s ease, box-shadow .4s ease, transform .25s ease; }
.btn:hover { border-color: var(--deep); color: var(--deep); background: rgba(38, 70, 90, .05); }
.btn[hidden] { display: none; }  /* the display above would otherwise beat the browser default */
.btn-primary { background: var(--sand); border-color: var(--sand); color: var(--deep);
  box-shadow: 0 1px 0 rgba(15, 31, 44, .08), inset 0 1px 0 rgba(255, 255, 255, .25); }
.btn-primary:hover { background: var(--deep); border-color: var(--deep); color: var(--white-warm);
  box-shadow: 0 4px 18px rgba(38, 70, 90, .22); transform: translateY(-1px); }
.btn .arrow { display: inline-block; transition: transform .3s ease; }
.btn:hover .arrow { transform: translateX(6px); }
.btn-danger { border-color: rgba(155, 44, 44, .4); color: var(--err); }
.btn-danger:hover { background: var(--err); border-color: var(--err); color: var(--white-warm); }
.btn-link { background: none; border: 0; padding: 0; cursor: pointer; color: var(--soft);
  font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.btn-link:hover { color: var(--deep); }
:focus-visible { outline: 2px solid var(--sand); outline-offset: 2px; }
.inline { display: inline; margin: 0; }
.actions { display: flex; gap: .6rem; flex-wrap: wrap; align-items: center; }

/* Forms */
label { display: flex; flex-direction: column; gap: 6px; font: 400 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--soft); }
label small { text-transform: none; letter-spacing: 0; font: 400 12px var(--sans); }
input, select, textarea { font: 400 15px/1.4 var(--sans); letter-spacing: 0; text-transform: none; color: var(--ink);
  background: var(--white-warm); border: 1px solid var(--rule); border-radius: var(--radius); padding: 9px 11px; min-height: 40px; width: 100%;
  transition: border-color .2s ease; }
input:hover, select:hover, textarea:hover { border-color: var(--soft); }
input:focus, select:focus, textarea:focus { border-color: var(--deep); outline: 2px solid rgba(38, 70, 90, .15); outline-offset: 0; }
input[type="file"] { padding: 7px; }
input[type="file"]::file-selector-button { font: 500 11px var(--mono); letter-spacing: .04em; text-transform: uppercase; color: var(--deep);
  background: transparent; border: 1px solid var(--rule); border-radius: var(--radius); padding: 7px 10px; margin-right: 10px; cursor: pointer; }
textarea { resize: vertical; }
fieldset { border: 0; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 20px; }
legend { font: italic 350 22px var(--serif); letter-spacing: -0.01em; color: var(--sand-deep); margin-bottom: 14px; padding: 0; }
.span-2 { grid-column: span 2; }
.form-grid { display: grid; gap: 36px; }
form > textarea + .btn { margin-top: .6rem; }
form .row { display: flex; gap: .75rem; align-items: end; flex-wrap: wrap; margin-bottom: .9rem; }
form .row label { flex: 1 1 160px; }
.stack { display: grid; gap: 14px; }
details { margin: .6rem 0 1rem; }
label.check { flex-direction: row; align-items: center; gap: 10px; }
label.check input { width: auto; min-height: 0; margin: 0; }
.number-override { margin: 0; }
.number-override[open] { display: grid; gap: 14px; }
form .row .hint { flex-basis: 100%; margin: 0; }
summary { cursor: pointer; font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--soft); }
summary:hover { color: var(--deep); }
.filters { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }
.filters input, .filters select { width: auto; min-height: 38px; font-size: 14px; }
.filters input[type="search"] { min-width: 13rem; }

/* Messages */
.flash { padding: 12px 16px; border-radius: var(--radius); margin: 0 0 1.25rem; border-left: 3px solid currentColor; }
.flash p, .flash ul { margin: 0; }
.flash-ok { background: var(--ok-bg); color: var(--ok); }
.flash-warn { background: var(--warn-bg); color: var(--warn); }
.flash-error { background: var(--err-bg); color: var(--err); }

/* Key figures: hairline blocks with serif numbers */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 0 32px; margin: 0 0 2rem; }
.stats > div { border-top: 1px solid var(--rule); padding: 14px 0 4px; }
.stats dt { font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--soft); }
.stats dd { margin: 6px 0 0; font: 350 34px/1.05 var(--serif); letter-spacing: -0.015em; color: var(--deep); font-variant-numeric: tabular-nums; }
.stats dd a { text-decoration: none; color: inherit; border-bottom: 1px solid var(--sand); }
.stats dd a:hover { color: var(--sand-deep); }
.stats dd.negative { color: var(--err); }
.stats .badge { vertical-align: middle; }
/* Sections that follow a block of stats: keep their own spacing, never overlap the text above. */
.cash { margin: 1.75rem 0 2rem; }
.stats + .cash { margin-top: 0; }   /* stats already bring their own bottom margin */
.cash h2 { margin: 0 0 .9rem; }
.cash .stats { margin-bottom: 0; }
.cash .stats + .hint, .cash .flash + .hint { margin-top: 1rem; }
.cash > .hint:last-child { margin-bottom: 0; }
.stats dd small { display: block; margin-top: 6px; font: 400 11px/1.5 var(--mono); letter-spacing: .04em;
  color: var(--soft); text-transform: none; }

/* Tables: no heavy header, hairlines like the service rows */
.table-wrap { padding: 0; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font: 400 11px var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--soft);
  padding: 14px 16px 10px; white-space: nowrap; border-bottom: 1px solid var(--rule); }
td { padding: 14px 16px; border-top: 1px solid var(--rule); vertical-align: top; }
tbody tr:first-child td { border-top: 0; }
tbody tr { transition: background-color .2s ease; }
tbody tr:hover td { background: rgba(201, 184, 122, .12); }
td a { text-decoration: none; }
td a strong { font: 350 18px/1.2 var(--serif); color: var(--deep); }
td:first-child a strong { white-space: nowrap; }
td a:hover strong { color: var(--sand-deep); }
.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
td.num { font-family: var(--mono); font-size: 14px; }
.truncate { max-width: 30ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.badge { display: inline-block; font: 500 10.5px/1.6 var(--mono); letter-spacing: .06em; text-transform: uppercase;
  padding: 1px 8px; border-radius: 999px; white-space: nowrap; vertical-align: middle; }
.badge-open { background: rgba(38, 70, 90, .09); color: var(--deep); }
.badge-paid { background: var(--ok-bg); color: var(--ok); }
.badge-cancelled, .badge-void { background: rgba(26, 43, 53, .07); color: var(--soft); text-decoration: line-through; }
.badge-overdue { background: var(--warn-bg); color: var(--warn); }
.badge-late { background: var(--err-bg); color: var(--err); }

/* Invoice positions on the new-invoice form */
.items { display: grid; gap: 16px; }
fieldset.item { border: 1px solid var(--rule); border-radius: var(--radius); padding: 14px 16px 18px; gap: 12px 20px; }
fieldset.item legend { font-size: 17px; margin-bottom: 8px; padding: 0 6px; }
.item-actions { display: flex; align-items: end; justify-content: flex-end; }
.items-foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.items-total { margin: 0; font: 350 22px var(--serif); color: var(--deep); font-variant-numeric: tabular-nums; }
.positions { list-style: none; margin: 0; padding: 0; }
.positions li + li { margin-top: 8px; padding-top: 8px; border-top: 1px solid var(--rule); }
.positions .num { float: right; margin-left: 1rem; font-family: var(--mono); font-size: 14px; }

/* Detail pages */
.detail-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 20px; align-items: start; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 10px 20px; margin: 0; }
.kv dt { font: 400 11px var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--soft); padding-top: 4px; }
.kv dd { margin: 0; min-width: 0; }
.kv dd strong { font: 350 26px/1 var(--serif); color: var(--deep); }
.hash { font-size: .7rem; }
.events { list-style: none; padding: 0; margin: 0; font-size: 14px; }
.events li { padding: 8px 0; border-top: 1px solid var(--rule); overflow-wrap: anywhere; }
.events time { font: 400 11px var(--mono); letter-spacing: .04em; color: var(--soft); margin-right: .5rem; }

/* Expenses */
.upload { display: flex; gap: 12px 20px; align-items: end; flex-wrap: wrap; margin-bottom: 2rem; }
.upload label { flex: 1 1 300px; }
.upload .hint { flex-basis: 100%; }
.kv + [data-dialog-open] { margin-top: 18px; }
/* Readable view of an XML e-invoice */
.einvoice { margin-bottom: 1.5rem; }
.einvoice-head { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; margin: 0 0 1rem; }
.einvoice-head strong { font: 350 22px/1.2 var(--serif); color: var(--deep); margin-right: 4px; }
.einvoice-lines { width: 100%; margin: 1rem 0; font-size: 14px; }
.einvoice-lines th, .einvoice-lines td { padding: 8px 6px; }
.einvoice-lines td { overflow-wrap: anywhere; }
.einvoice-totals dd { text-align: right; font-variant-numeric: tabular-nums; }
.einvoice-totals dd strong { font-size: 20px; }
.doc-preview { display: block; max-width: 100%; max-height: 440px; border: 1px solid var(--rule); border-radius: var(--radius); margin-bottom: .75rem; }
/* Full-screen dialog for the PDF text: keeps the layout columns, scrolls in both directions. */
.text-dialog { width: 100vw; height: 100vh; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0;
  background: var(--paper); color: var(--ink); }
.text-dialog[open] { display: flex; flex-direction: column; }
.text-dialog::backdrop { background: rgba(26, 43, 53, .55); }
.dialog-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 16px var(--gutter); border-bottom: 1px solid var(--rule); }
.dialog-head h2 { margin: 0; overflow-wrap: anywhere; }
.dialog-head form { margin: 0; flex-shrink: 0; }
.doc-text { flex: 1; min-height: 0; margin: 0; overflow: auto; white-space: pre; tab-size: 4;
  font: 400 12.5px/1.6 var(--mono); color: var(--ink); background: var(--white-warm); padding: 24px var(--gutter); }
body:has(.text-dialog[open]) { overflow: hidden; }

/* Footer */
.site-footer { width: calc(100% - 2 * var(--gutter)); max-width: calc(1280px - 96px); margin: 0 auto; padding: 20px 0 28px; border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; gap: 8px 24px; flex-wrap: wrap; font: 400 11px var(--mono); letter-spacing: .06em; color: var(--soft); }

@media (prefers-reduced-motion: no-preference) {
  .wave-drift { animation: hafen-drift 7s ease-in-out infinite alternate; }
  @keyframes hafen-drift {
    from { transform: translateX(0); }
    to   { transform: translateX(-56px); }
  }
}
@media (prefers-reduced-motion: reduce) {
  .btn, .btn .arrow, tbody tr { transition: none; }
}

@media (max-width: 900px) {
  .topbar { grid-template-columns: 1fr auto; padding-top: 16px; }
  .topnav { grid-column: 1 / -1; grid-row: 2; justify-content: flex-start; gap: 22px; }
  .topbar-actions { gap: .9rem; }
  main { padding-top: 28px; }
}
@media (max-width: 640px) {
  fieldset { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .brand-sub { display: none; }
  .filters, .filters input, .filters select { width: 100%; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 20px; }
  .stats dd { font-size: 24px; }
  .detail-grid { grid-template-columns: 1fr; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 8px; }
}