/* ————— PaperTrail ————— */
:root {
  --bg: #0f1117;
  --panel: #171a23;
  --panel-2: #1e2230;
  --border: #2a2f40;
  --text: #e8eaf2;
  --muted: #8b91a7;
  --accent: #4f7cff;
  --accent-2: #6c8fff;
  --danger: #ff5d6c;
  --paper-shadow: 0 24px 60px rgba(0,0,0,.55);
  --radius: 10px;
  font-size: 15px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ————— Top bar ————— */
.topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 20px;
  background: rgba(15,17,23,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-mark { font-size: 20px; }
.brand-name { font-weight: 700; font-size: 17px; letter-spacing: .3px; }
.brand-tag { color: var(--muted); font-size: 12px; }
.topbar-actions { display: flex; gap: 8px; }

.btn {
  border: 1px solid var(--border);
  background: var(--panel-2);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 13.5px;
  cursor: pointer;
  transition: background .15s, border-color .15s, transform .05s;
}
.btn:hover { background: #262b3c; border-color: #3a4158; }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 600;
}
.btn.primary:hover { background: var(--accent-2); border-color: var(--accent-2); }
.btn.ghost { background: transparent; }
.btn.small { padding: 6px 10px; font-size: 12.5px; }

/* ————— Layout ————— */
.layout {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 28px;
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  align-items: start;
}
@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}

/* ————— Editor ————— */
.editor { display: flex; flex-direction: column; gap: 16px; }
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.panel h2 {
  margin: 0 0 12px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--muted);
  font-weight: 700;
}
.panel .count { color: var(--accent-2); }

input, textarea, select {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  padding: 8px 10px;
  font-size: 13.5px;
  font-family: inherit;
  margin-bottom: 8px;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
}
textarea { resize: vertical; }
label { font-size: 12px; color: var(--muted); display: block; }
label input, label select { margin-top: 4px; }

.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.grow { flex: 1; }

/* logo uploader */
.logo-row { display: flex; gap: 10px; margin-bottom: 4px; }
.logo-drop {
  width: 74px; height: 74px; flex-shrink: 0;
  border: 1.5px dashed var(--border);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; overflow: hidden;
  color: var(--muted); font-size: 12px;
  background: var(--panel-2);
  transition: border-color .15s;
}
.logo-drop:hover { border-color: var(--accent); }
.logo-drop img { width: 100%; height: 100%; object-fit: contain; }

/* line items */
.item-row {
  display: grid;
  grid-template-columns: 1fr 62px 84px 28px;
  gap: 6px;
  margin-bottom: 6px;
}
.item-row input { margin-bottom: 0; }
.item-del {
  border: none; background: transparent; color: var(--muted);
  font-size: 16px; cursor: pointer; border-radius: 6px;
}
.item-del:hover { color: var(--danger); background: rgba(255,93,108,.1); }

/* saved list */
.saved-list { list-style: none; margin: 0; padding: 0; }
.saved-list li {
  display: flex; align-items: center; justify-content: space-between;
  gap: 8px; padding: 8px 10px; border-radius: 7px;
  border: 1px solid transparent; cursor: pointer; font-size: 13px;
}
.saved-list li:hover { background: var(--panel-2); border-color: var(--border); }
.saved-list .s-meta { color: var(--muted); font-size: 11.5px; }
.saved-list .s-load { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.saved-list .s-del {
  border: none; background: transparent; color: var(--muted);
  cursor: pointer; font-size: 14px; border-radius: 5px; padding: 2px 6px;
}
.saved-list .s-del:hover { color: var(--danger); }
.saved-empty { color: var(--muted); font-size: 13px; padding: 4px 2px; }
.hint { color: var(--muted); font-size: 11.5px; margin: 10px 2px 0; }

/* ————— Paper preview ————— */
.preview-wrap { display: flex; justify-content: center; }
.paper {
  background: #fff;
  color: #17181c;
  width: 100%;
  max-width: 820px;
  min-height: 1060px;
  border-radius: 6px;
  box-shadow: var(--paper-shadow);
  padding: 56px 60px;
  display: flex;
  flex-direction: column;
  font-size: 14px;
  line-height: 1.5;
}

.paper-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  gap: 24px; padding-bottom: 28px;
}
.p-logo { max-height: 64px; max-width: 200px; object-fit: contain; margin-bottom: 10px; display: block; }
.p-from-name { font-size: 19px; font-weight: 700; }
.paper-title h1 {
  margin: 0; font-size: 30px; letter-spacing: .18em;
  color: #17181c; font-weight: 800; text-align: right;
}
.p-number { text-align: right; color: #6b7080; margin-top: 2px; }

.paper-meta {
  display: flex; justify-content: space-between; gap: 24px;
  padding: 20px 0 26px;
  border-top: 2px solid #17181c;
}
.p-label {
  font-size: 10.5px; text-transform: uppercase; letter-spacing: .1em;
  color: #9aa0af; font-weight: 700; margin-bottom: 3px;
}
.p-strong { font-weight: 600; }
.p-muted { color: #6b7080; white-space: pre-line; font-size: 13px; }
.paper-dates { text-align: right; }
.paper-dates > div { margin-bottom: 6px; }
.paper-dates .p-label { display: inline-block; margin-right: 10px; }

.paper-table { width: 100%; border-collapse: collapse; }
.paper-table th {
  text-align: left; font-size: 10.5px; text-transform: uppercase;
  letter-spacing: .1em; color: #9aa0af; padding: 8px 6px;
  border-bottom: 1.5px solid #e3e5ea;
}
.paper-table td { padding: 10px 6px; border-bottom: 1px solid #eef0f3; vertical-align: top; }
.paper-table .num { text-align: right; white-space: nowrap; }
.paper-table .empty td { color: #b6bac4; font-style: italic; }

.paper-totals {
  margin-left: auto; width: 280px; padding: 16px 6px 0;
}
.t-row {
  display: flex; justify-content: space-between;
  padding: 5px 0; color: #4a4e5a;
}
.t-total {
  border-top: 2px solid #17181c; margin-top: 8px; padding-top: 10px;
  font-size: 17px; font-weight: 800; color: #17181c;
}

.paper-notes { margin-top: 34px; }
.paper-notes div:last-child { white-space: pre-line; color: #4a4e5a; }

.paper-foot {
  margin-top: auto; padding-top: 40px;
  font-size: 11px; color: #b6bac4; text-align: center;
}

/* ————— Print ————— */
@media print {
  @page { margin: 0; size: A4; }
  body { background: #fff; }
  .no-print { display: none !important; }
  .layout { display: block; padding: 0; max-width: none; }
  .preview-wrap { display: block; }
  .paper {
    box-shadow: none; border-radius: 0;
    max-width: none; width: auto; min-height: 100vh;
    padding: 14mm 16mm;
  }
}