/* ==============================================
   Free Business Forms Hub
   Shared stylesheet
   ============================================== */
:root {
  --ink:    #2D3748;
  --muted:  #718096;
  --line:   #E2E8F0;
  --soft:   #F7FAFC;
  --accent: #2563EB;
  --accent2:#0F766E;
  --white:  #FFFFFF;
}
*, *::before, *::after { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: #FFFFFF;
  line-height: 1.55;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---------- Layout shell ---------- */
.shell { display: grid; grid-template-columns: 290px 1fr; min-height: 100vh; }

/* ---------- Sidebar ---------- */
aside {
  border-right: 1px solid var(--line);
  padding: 28px 22px;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto;
  background: #FFFFFF;
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 30px; }
.mark {
  width: 42px; height: 42px;
  border: 1px solid var(--ink);
  display: grid; place-items: center;
  font-weight: 800; border-radius: 12px; letter-spacing: -.08em;
}
h1 { font-size: 22px; line-height: 1.1; margin: 0; letter-spacing: -.04em; }
.tag { color: var(--muted); font-size: 13px; margin-top: 6px; }

nav { display: grid; gap: 10px; margin: 24px 0; }
.tab {
  width: 100%; text-align: left;
  border: 1px solid var(--line);
  background: #FFF; color: var(--ink);
  padding: 13px 14px; border-radius: 14px;
  cursor: pointer; font-weight: 700; font-size: 15px;
  display: flex; justify-content: space-between; align-items: center;
  transition: box-shadow .15s, border-color .15s;
}
.tab:hover, .tab.active {
  border-color: var(--ink);
  box-shadow: 0 8px 24px rgba(45,55,72,.07);
}
.tab span:last-child { color: var(--muted); font-weight: 600; }

.ad-zone {
  border: 1px dashed #CBD5E0;
  color: #718096;
  background: #FFFFFF;
  border-radius: 18px;
  padding: 18px;
  text-align: center;
  font-size: 12px;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.side-footer {
  position: absolute; bottom: 22px; left: 22px; right: 22px;
  font-size: 12px; color: var(--muted);
}

/* ---------- Main content ---------- */
main { padding: 34px; max-width: 1120px; }

/* Hero */
.hero {
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 34px;
  margin-bottom: 22px;
  background: linear-gradient(180deg, #FFFFFF 0%, #FBFCFE 100%);
}
.hero h2 { margin: 0 0 10px; font-size: 42px; line-height: 1; letter-spacing: -.06em; }
.hero p { max-width: 760px; color: var(--muted); margin: 0; }

/* Tool sections */
.tool {
  display: none;
  border: 1px solid var(--line);
  border-radius: 28px;
  padding: 28px;
  background: #FFF;
  box-shadow: 0 14px 45px rgba(45,55,72,.045);
}
.tool.active { display: block; }
.tool h3 { margin: 0 0 6px; font-size: 28px; letter-spacing: -.04em; }
.tool-desc { color: var(--muted); margin: 0 0 22px; }

/* Two-column grid inside tools */
.grid { display: grid; grid-template-columns: minmax(280px, 430px) 1fr; gap: 24px; align-items: start; }

/* Forms */
label { display: block; font-size: 13px; font-weight: 700; margin: 14px 0 7px; }
input, textarea, select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 13px;
  font: inherit;
  color: var(--ink);
  background: #FFF;
}
textarea { min-height: 96px; resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* Buttons */
.btns { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
button.primary, button.secondary {
  border: 1px solid var(--ink);
  border-radius: 999px;
  padding: 11px 16px;
  font-weight: 800;
  cursor: pointer;
  font-size: 14px;
}
button.primary { background: var(--ink); color: #FFF; border-color: var(--ink); }
button.secondary { background: #FFF; color: var(--ink); }

/* Output panels */
.panel {
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px;
  background: #FFF;
  min-height: 220px;
}
.muted { color: var(--muted); }

/* Invoice preview */
.invoice-preview { color: #111827; background: #FFF; }
.invoice-head { display: flex; justify-content: space-between; gap: 16px; border-bottom: 2px solid #111827; padding-bottom: 15px; margin-bottom: 15px; flex-wrap: wrap; }
.invoice-title { font-size: 32px; font-weight: 900; letter-spacing: -.04em; }
.invoice-meta { text-align: right; font-size: 14px; color: #4B5563; }
table { width: 100%; border-collapse: collapse; margin-top: 14px; font-size: 14px; }
th, td { border-bottom: 1px solid #E5E7EB; padding: 10px 6px; text-align: right; }
th:first-child, td:first-child { text-align: left; }
th { font-weight: 700; color: #6B7280; font-size: 12px; text-transform: uppercase; letter-spacing: .06em; }
.totals { margin-left: auto; max-width: 300px; margin-top: 12px; }
.totals div { display: flex; justify-content: space-between; padding: 7px 0; font-size: 14px; }
.grand { border-top: 2px solid #111827; font-weight: 900; font-size: 18px; }
.remove-item { background: none; border: none; color: #EF4444; cursor: pointer; font-size: 13px; font-weight: 700; padding: 4px 8px; }
.line { margin-bottom: 8px; }

/* QR code */
#qrSvgWrap svg { max-width: 260px; width: 100%; height: auto; border: 12px solid #FFF; box-shadow: 0 0 0 1px var(--line); }
#qrStatus { margin-top: 8px; font-size: 13px; }

/* Bio */
.bio-output { white-space: pre-wrap; font-size: 16px; line-height: 1.65; }

/* Footer */
footer { color: var(--muted); font-size: 13px; margin: 24px 0 10px; display: flex; gap: 14px; flex-wrap: wrap; }

/* Legal pages */
.legal { max-width: 780px; }
.legal h2 { font-size: 34px; margin: 0 0 6px; letter-spacing: -.04em; }
.legal h3 { font-size: 20px; margin: 28px 0 10px; }
.legal p, .legal li { color: #4A5568; font-size: 15px; line-height: 1.65; }
.legal ul { padding-left: 20px; }
.back-link { display: inline-block; margin-bottom: 20px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .shell { display: block; }
  aside { position: relative; height: auto; border-right: none; border-bottom: 1px solid var(--line); }
  .side-footer { position: static; margin-top: 18px; }
  main { padding: 20px; }
  .hero h2 { font-size: 32px; }
  .grid { grid-template-columns: 1fr; }
}

/* ---------- Print ---------- */
@media print {
  body * { visibility: hidden; }
  #invoicePreview, #invoicePreview * { visibility: visible; }
  #invoicePreview { position: absolute; left: 0; top: 0; width: 100%; border: none; }
  aside, .hero, .ad-zone, .btns, footer, nav, section:not(#invoice) { display: none !important; }
}