/* ============================================================
   BillPilot — Simple Invoice Maker
   App chrome: dark theme (navy/charcoal + gold accent)
   Invoice paper: white minimalist template with selectable accent
   ============================================================ */

:root {
  --bg: #0f141d;
  --surface: #171f2b;
  --surface-2: #1e2837;
  --field: #121926;
  --text: #e9e7e1;
  --muted: #98a1b3;
  --line: #2a3547;
  --ink: #2a2a28;
  --ink-soft: #6b6b64;
  --beige: #efe7da;
  --beige-soft: #f7f2ea;
  --beige-deep: #d9cbb4;
  --accent: #c8a96a;
  --accent-dark: #b3924f;
  --paper: #fffdf9;
  --paper-line: #e4ddd0;
  --danger: #e06a60;
  --ok: #6fbf8a;
  --radius: 10px;
  --shadow: 0 12px 34px rgba(0, 0, 0, .45);
  --font-serif: "Playfair Display", Georgia, serif;
  --font-sans: "Jost", "Segoe UI", sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.hidden { display: none !important; }
.ta-r { text-align: right; }

/* ---------------- Top bar ---------------- */
.topbar {
  background: #121926;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.brand { display: flex; align-items: baseline; gap: 12px; text-decoration: none; }
.brand-logo { height: 22px; display: block; }
.brand-tag {
  color: var(--accent);
  font-size: .78rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  white-space: nowrap;
}
.topnav { display: flex; gap: 10px; align-items: center; }
.nav-btn {
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: .95rem;
  letter-spacing: .04em;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
}
.nav-btn:hover { background: var(--surface-2); }

/* ---------------- Buttons ---------------- */
.btn {
  font-family: var(--font-sans);
  font-size: .95rem;
  border: none;
  border-radius: 8px;
  padding: 9px 18px;
  cursor: pointer;
  letter-spacing: .03em;
  transition: background .15s ease, transform .1s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-accent { background: var(--accent); color: #14100a; font-weight: 500; }
.btn-accent:hover { background: #d9bc80; }
.btn-ghost {
  background: var(--surface-2);
  color: var(--text);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-tiny { padding: 4px 10px; font-size: .8rem; }
.btn-add { margin-top: 8px; width: 100%; border-style: dashed; }
.btn-wide { width: 100%; }

/* ---------------- Views ---------------- */
.view {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 24px 60px;
  flex: 1;
}

/* ---------------- Hero + stats ---------------- */
.hero { text-align: center; padding: 34px 0 10px; }
.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  color: var(--text);
  margin-bottom: 10px;
}
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto; font-weight: 300; }

.stats-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px;
  margin: 30px 0 34px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.stat-label { font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.stat-value { font-family: var(--font-serif); font-size: 1.45rem; color: var(--accent); }

/* ---------------- Invoice list ---------------- */
.list-wrap {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.list-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
  padding: 18px 22px;
  border-bottom: 1px solid var(--line);
}
.list-head h2 { font-family: var(--font-serif); font-size: 1.25rem; color: var(--text); }
.list-tools { display: flex; gap: 10px; }
.list-tools input, .list-tools select {
  font-family: var(--font-sans);
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--field);
  color: var(--text);
  font-size: .9rem;
}

.invoice-table { width: 100%; border-collapse: collapse; }
.invoice-table th {
  text-align: left;
  font-size: .74rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 500;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: var(--surface-2);
}
.invoice-table th.ta-r { text-align: right; }
.invoice-table td { padding: 14px 22px; border-bottom: 1px solid var(--line); font-size: .95rem; }
.invoice-table tbody tr { cursor: pointer; transition: background .12s; }
.invoice-table tbody tr:hover { background: var(--surface-2); }
.invoice-table td.ta-r { text-align: right; font-variant-numeric: tabular-nums; }
.inv-num { font-weight: 500; color: var(--accent); }

.badge {
  display: inline-block;
  font-size: .72rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 99px;
  font-weight: 500;
}
.badge-draft { background: rgba(152, 161, 179, .16); color: var(--muted); }
.badge-sent { background: rgba(93, 156, 226, .16); color: #7db2e8; }
.badge-paid { background: rgba(111, 191, 138, .16); color: var(--ok); }
.badge-overdue { background: rgba(224, 106, 96, .16); color: var(--danger); }

.row-actions { display: flex; gap: 6px; justify-content: flex-end; }
.icon-btn {
  border: none;
  background: none;
  cursor: pointer;
  font-size: .95rem;
  padding: 4px 6px;
  border-radius: 6px;
  color: var(--muted);
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.danger:hover { color: var(--danger); background: rgba(224, 106, 96, .14); }

.empty-state { text-align: center; padding: 60px 20px; }
.empty-state.hidden { display: none; }
.empty-art { font-size: 2.4rem; margin-bottom: 10px; }
.empty-state h3 { font-family: var(--font-serif); color: var(--text); margin-bottom: 6px; }
.empty-state p { color: var(--muted); margin-bottom: 18px; font-weight: 300; }

/* ---------------- Editor layout ---------------- */
.editor-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.toolbar-right { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.save-hint { font-size: .82rem; color: var(--muted); font-style: italic; }
.status-select {
  font-family: var(--font-sans);
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--field);
  color: var(--text);
  font-size: .9rem;
}

.editor-layout {
  display: grid;
  grid-template-columns: minmax(340px, 460px) 1fr;
  gap: 22px;
  align-items: start;
}
@media (max-width: 980px) {
  .editor-layout { grid-template-columns: 1fr; }
}

.panel { border-radius: var(--radius); }

/* ---------------- Form ---------------- */
.form-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  padding: 8px 18px 18px;
}
.form-section { border-bottom: 1px solid var(--line); padding: 6px 0 16px; }
.form-section:last-child { border-bottom: none; }
.form-section summary {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: var(--accent);
  cursor: pointer;
  padding: 12px 0 10px;
  list-style: none;
  position: relative;
  user-select: none;
}
.form-section summary::after {
  content: "▾";
  position: absolute;
  right: 2px;
  color: var(--accent);
  transition: transform .15s;
}
.form-section:not([open]) summary::after { transform: rotate(-90deg); }
.form-section summary::-webkit-details-marker { display: none; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 12px; }
.grid-2 .span-2 { grid-column: span 2; }

label, .field-lbl { display: flex; flex-direction: column; gap: 5px; font-size: .82rem; color: var(--muted); letter-spacing: .02em; }
input, select, textarea {
  font-family: var(--font-sans);
  font-size: .93rem;
  color: var(--text);
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--field);
  width: 100%;
  transition: border-color .12s, background .12s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--surface-2);
}
input[type="file"] { padding: 6px; background: none; border: none; font-size: .82rem; color: var(--muted); }
input::placeholder, textarea::placeholder { color: #5d6778; }
textarea { resize: vertical; }
input[type="date"] { color-scheme: dark; }

.logo-row .logo-controls { display: flex; align-items: center; gap: 8px; }

/* accent color swatches */
.accent-field { display: flex; flex-direction: column; gap: 6px; }
.swatches { display: flex; gap: 9px; flex-wrap: wrap; padding: 2px 0; }
.swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid rgba(255, 255, 255, .18);
  padding: 0;
  transition: transform .1s ease;
}
.swatch:hover { transform: scale(1.12); }
.swatch.selected {
  border-color: #fff;
  box-shadow: 0 0 0 3px var(--accent);
}

/* line item rows */
.items-head {
  display: grid;
  grid-template-columns: 96px 1fr 84px 62px 30px;
  gap: 8px;
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 2px 2px 6px;
}
.item-row {
  display: grid;
  grid-template-columns: 96px 1fr 84px 62px 30px;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}
.item-row input { padding: 8px 9px; font-size: .88rem; }
.item-remove {
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.05rem;
  border-radius: 6px;
  height: 32px;
}
.item-remove:hover { color: var(--danger); background: rgba(224, 106, 96, .14); }

/* ---------------- Invoice paper (the template) ---------------- */
.preview-panel { position: sticky; top: 84px; }
@media (max-width: 980px) { .preview-panel { position: static; } }

.preview-actions { max-width: 720px; margin: 14px auto 0; }

.paper {
  --pv-accent: #b3924f;
  background: var(--paper);
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  aspect-ratio: 595.5 / 842;
  min-height: 0;
  box-shadow: var(--shadow);
  padding: 6.5% 7.5% 4%;
  position: relative;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--ink);
  font-size: clamp(9px, 1.35vw, 13.5px);
  line-height: 1.55;
  overflow: hidden;
}
@media (max-width: 980px) { .paper { font-size: clamp(9px, 2.1vw, 13.5px); } }

.paper-band-top, .paper-band-bottom {
  position: absolute;
  left: 0; right: 0;
  height: 14px;
  background: color-mix(in srgb, var(--pv-accent) 32%, #fff);
}
.paper-band-top { top: 0; }
.paper-band-bottom { bottom: 0; }

.pv-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.6em;
}
.pv-logo { max-height: 3.4em; max-width: 11em; object-fit: contain; margin-bottom: .5em; display: block; }
.pv-title {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 2.55em;
  letter-spacing: .32em;
  color: var(--ink);
  line-height: 1.1;
}
.pv-header-right { text-align: right; padding-top: .4em; }
.pv-header-right p { margin-bottom: .15em; }
.pv-lbl { letter-spacing: .08em; color: var(--ink-soft); }

.pv-parties {
  display: flex;
  justify-content: space-between;
  gap: 2em;
  margin-bottom: 1.8em;
}
.pv-name { font-weight: 500; letter-spacing: .04em; }
.pv-from p, .pv-to p { max-width: 22em; }
.pv-to { text-align: right; }
.pv-billto { letter-spacing: .1em; color: var(--ink-soft); margin-bottom: .2em; }

.pv-table { width: 100%; border-collapse: collapse; margin-bottom: 1.2em; }
.pv-table th {
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: capitalize;
  text-align: left;
  padding: .7em .5em;
  border-top: 1.5px solid var(--pv-accent);
  border-bottom: 1px solid color-mix(in srgb, var(--pv-accent) 50%, #fff);
  background: color-mix(in srgb, var(--pv-accent) 11%, #fff);
}
.pv-table th.col-price, .pv-table th.col-qty, .pv-table th.col-total { text-align: right; }
.pv-table td {
  padding: .55em .5em;
  border-bottom: 1px solid var(--paper-line);
  vertical-align: top;
}
.pv-table td.n { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pv-table .col-date { width: 15%; white-space: nowrap; }
.pv-table .col-price { width: 17%; }
.pv-table .col-qty { width: 9%; }
.pv-table .col-total { width: 19%; }

.pv-totals {
  margin-left: auto;
  width: 58%;
  max-width: 20em;
  margin-bottom: auto;
}
.pv-totals-lines > div {
  display: flex;
  justify-content: space-between;
  padding: .18em .4em;
  color: var(--ink-soft);
}
.pv-totals-lines span:last-child { color: var(--ink); font-variant-numeric: tabular-nums; }
.pv-grand {
  display: flex;
  justify-content: space-between;
  font-weight: 600;
  font-size: 1.12em;
  letter-spacing: .06em;
  border-top: 1.5px solid var(--pv-accent);
  border-bottom: 1.5px solid var(--pv-accent);
  padding: .4em;
  margin-top: .35em;
}
.pv-balance {
  display: flex;
  justify-content: space-between;
  padding: .35em .4em 0;
  font-weight: 500;
  color: var(--pv-accent);
}

.pv-bottom {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2em;
  margin-top: 1.6em;
}
.pv-pay-title { font-weight: 500; letter-spacing: .08em; margin-bottom: .2em; }
.pv-payment p { color: var(--ink-soft); }
.pv-payment .pv-pay-title { color: var(--ink); }
.pv-notes { margin-top: .8em; font-style: italic; max-width: 26em; }
.pv-contact { text-align: right; color: var(--ink-soft); }

.pv-thanks {
  font-family: var(--font-serif);
  text-align: center;
  letter-spacing: .34em;
  font-size: 1.25em;
  margin: 1.6em 0 1.2em;
  color: var(--ink);
}

/* ---------------- Mobile ---------------- */
@media (max-width: 640px) {
  .view { padding: 18px 14px 40px; }

  /* topbar: drop the tagline, tighten spacing */
  .topbar-inner { padding: 12px 14px; gap: 10px; }
  .brand-tag { display: none; }
  .brand-logo { height: 18px; }
  .nav-btn { padding: 8px 8px; font-size: .9rem; }
  .btn { padding: 8px 14px; font-size: .9rem; }

  .hero { padding: 20px 0 6px; }
  .stats-row { grid-template-columns: 1fr 1fr; gap: 10px; margin: 22px 0 26px; }
  .stat-card { padding: 12px 14px; }
  .stat-value { font-size: 1.15rem; word-break: break-word; }

  /* invoice list: scroll the table sideways instead of the page */
  .list-head { padding: 14px; }
  .list-tools { width: 100%; flex-direction: column; }
  #invoice-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .invoice-table { min-width: 620px; }
  .invoice-table th, .invoice-table td { padding: 10px 12px; }

  /* form: single column */
  .form-panel { padding: 4px 12px 14px; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-2 .span-2 { grid-column: auto; }

  /* line items: description on its own row, then date / rate / qty */
  .items-head { display: none; }
  .item-row {
    grid-template-columns: 1.3fr 1fr .8fr 34px;
    grid-template-areas:
      "desc desc desc desc"
      "date rate qty  x";
    row-gap: 6px;
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px dashed var(--line);
  }
  .item-row input[data-f="desc"] { grid-area: desc; }
  .item-row input[data-f="date"] { grid-area: date; }
  .item-row input[data-f="price"] { grid-area: rate; }
  .item-row input[data-f="qty"] { grid-area: qty; }
  .item-remove { grid-area: x; }

  .editor-toolbar { gap: 8px; }
  .preview-actions { margin-top: 10px; }
}

/* ---------------- Footer ---------------- */
.site-footer {
  text-align: center;
  padding: 22px;
  color: var(--muted);
  font-size: .82rem;
  font-weight: 300;
}

/* ---------------- Print: only the invoice paper ---------------- */
@media print {
  @page { size: A4; margin: 0; }
  body { background: #fff; display: block; }
  .no-print, .topbar, .site-footer, .form-panel, .editor-toolbar, .preview-actions { display: none !important; }
  .view { padding: 0; max-width: none; }
  #view-editor { display: block !important; }
  .editor-layout { display: block; }
  .preview-panel { position: static; }
  .paper {
    max-width: none;
    width: 210mm;
    min-height: 296mm;
    aspect-ratio: auto;
    margin: 0;
    box-shadow: none;
    padding: 18mm 16mm 10mm;
    font-size: 12.5px;
  }
  .paper-band-top, .paper-band-bottom { height: 8mm; }
  .paper-band-top, .paper-band-bottom, .pv-table th, .badge {
    -webkit-print-color-adjust: exact;
    print-color-adjust: exact;
  }
}