:root {
  --ink: #1c2430;
  --muted: #667085;
  --line: #d8dee8;
  --paper: #ffffff;
  --soft: #f5f7fb;
  --brand: #0f766e;
  --brand-strong: #115e59;
  --accent: #c2410c;
  --ok: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --radius: 8px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--soft);
}

body {
  min-height: 100%;
  margin: 0;
  line-height: 1.5;
}

a {
  color: var(--brand-strong);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.button {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--brand);
  border-radius: var(--radius);
  padding: 8px 14px;
  background: var(--brand);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button.secondary,
.button.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

button.danger,
.button.danger {
  border-color: var(--danger);
  background: var(--danger);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 10px 11px;
  background: #fff;
  color: var(--ink);
}

textarea {
  min-height: 88px;
  resize: vertical;
}

label {
  display: grid;
  gap: 6px;
  color: #344054;
  font-size: 14px;
  font-weight: 650;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 10px;
  text-align: left;
  vertical-align: top;
}

th {
  color: #475467;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.public-shell {
  background: #f8fafc;
}

.public-nav {
  position: sticky;
  top: 0;
  z-index: 5;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
}

.public-nav-inner,
.app-topbar {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 850;
}

.brand-mark {
  display: inline-grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 7px;
  background: var(--brand);
  color: white;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero {
  display: grid;
  min-height: 560px;
  align-items: center;
  padding: 70px 0 46px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.82fr);
  gap: 42px;
  align-items: center;
}

.eyebrow {
  color: var(--accent);
  font-size: 13px;
  font-weight: 850;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1 {
  margin: 12px 0 16px;
  font-size: clamp(40px, 6vw, 76px);
  line-height: 0.98;
  letter-spacing: 0;
}

.hero p {
  max-width: 680px;
  color: #475467;
  font-size: 19px;
}

.hero-actions,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.document-showcase {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
  background: var(--paper);
  box-shadow: 0 24px 64px rgba(15, 23, 42, 0.12);
}

.sample-doc {
  display: grid;
  gap: 18px;
}

.sample-doc-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
}

.sample-total {
  border-top: 2px solid var(--ink);
  padding-top: 12px;
  text-align: right;
  font-size: 28px;
  font-weight: 900;
}

.section {
  padding: 58px 0;
}

.section h2,
.page-title h1 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.06;
  letter-spacing: 0;
}

.section-lead,
.page-title p,
.muted {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 16px;
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px;
  background: var(--paper);
}

.card h3 {
  margin: 0 0 8px;
}

.metric {
  display: grid;
  gap: 4px;
}

.metric strong {
  font-size: 28px;
}

.app-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  border-right: 1px solid var(--line);
  padding: 20px;
  background: #fff;
}

.sidebar nav {
  display: grid;
  gap: 6px;
  margin-top: 24px;
}

.sidebar nav a {
  border-radius: 7px;
  padding: 10px 12px;
  color: #344054;
  font-weight: 700;
}

.sidebar nav a.is-active,
.sidebar nav a:hover {
  background: #ecfdf5;
  color: var(--brand-strong);
  text-decoration: none;
}

.app-main {
  min-width: 0;
}

.app-topbar {
  border-bottom: 1px solid var(--line);
  padding: 0 24px;
  background: #fff;
}

.content {
  width: min(1220px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 60px;
}

.page-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 20px;
}

.flash {
  border: 1px solid #bbf7d0;
  border-radius: var(--radius);
  margin-bottom: 16px;
  padding: 12px 14px;
  background: #f0fdf4;
  color: #166534;
}

.error {
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  margin-bottom: 16px;
  padding: 12px 14px;
  background: #fef2f2;
  color: #991b1b;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.full {
  grid-column: 1 / -1;
}

.card-subsection {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  background: #fbfcfe;
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(130px, 180px) minmax(100px, auto);
  gap: 10px;
  align-items: end;
  margin-bottom: 14px;
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.inline-form {
  display: inline-flex;
  margin: 0;
}

.inline-form button {
  min-height: 32px;
  padding: 5px 9px;
}

.logo-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  padding: 12px;
  background: #fbfcfe;
}

.logo-preview img,
.doc-logo {
  display: block;
  max-width: 220px;
  max-height: 108px;
  object-fit: contain;
}

.doc-logo {
  margin-bottom: 16px;
}

.logo-cleanup {
  mix-blend-mode: multiply;
}

.document-editor {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 18px;
  align-items: start;
}

.line-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) 80px 82px 100px 100px 90px 126px;
  gap: 8px;
  align-items: start;
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
}

.line-actions {
  display: flex;
  gap: 6px;
}

.line-actions button {
  min-height: 34px;
  padding: 6px 9px;
}

.preview-paper {
  position: sticky;
  top: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 6px solid var(--doc-accent, var(--brand));
  border-radius: var(--radius);
  padding: 26px;
  background: #fff;
  box-shadow: 0 16px 40px rgba(15, 23, 42, 0.08);
}

.preview-paper > *:not(.preview-watermark) {
  position: relative;
  z-index: 1;
}

.preview-watermark {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: grid;
  place-items: center;
  pointer-events: none;
  color: rgba(185, 28, 28, 0.13);
  font-size: clamp(54px, 11vw, 128px);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1;
  text-transform: uppercase;
  transform: rotate(-32deg);
  white-space: nowrap;
}

.preview-header,
.preview-total-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.preview-brand {
  display: grid;
  justify-items: start;
  min-width: 0;
}

.preview-title-block {
  text-align: right;
}

.preview-paper.logo-center .preview-header {
  display: grid;
  justify-items: center;
  text-align: center;
}

.preview-paper.logo-center .preview-brand {
  justify-items: center;
}

.preview-paper.logo-center .preview-title-block {
  text-align: center;
}

.preview-paper.template-letterhead {
  border-top-width: 12px;
}

.preview-paper.template-letterhead .preview-title {
  color: var(--doc-accent, var(--brand));
}

.preview-paper.template-compact {
  padding: 22px;
}

.preview-paper.template-compact .doc-logo {
  max-width: 176px;
  max-height: 82px;
}

.preview-title {
  font-size: 30px;
  font-weight: 900;
  text-transform: uppercase;
}

.status {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 4px 9px;
  background: #eef2ff;
  color: #3730a3;
  font-size: 12px;
  font-weight: 800;
}

.status.paid {
  background: #dcfce7;
  color: #166534;
}

.status.overdue,
.status.void {
  background: #fee2e2;
  color: #991b1b;
}

.mobile-menu-button {
  display: none;
}

.mobile-menu {
  display: none;
}

.footer {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  color: var(--muted);
}

.print-actions {
  margin-bottom: 16px;
}

@media (max-width: 980px) {
  .hero-grid,
  .grid.four,
  .grid.three,
  .grid.two,
  .app-shell,
  .document-editor {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: none;
  }

  .mobile-menu-button {
    display: inline-flex;
  }

  .mobile-menu.is-open {
    display: grid;
    gap: 8px;
    border-bottom: 1px solid var(--line);
    padding: 12px 24px;
    background: #fff;
  }

  .nav-links {
    display: none;
  }

  .page-title {
    align-items: flex-start;
    flex-direction: column;
  }

  .line-row {
    grid-template-columns: 1fr 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    grid-template-columns: 1fr;
  }

  .preview-paper {
    position: static;
  }
}

@media print {
  body {
    background: white;
  }

  .public-nav,
  .sidebar,
  .app-topbar,
  .print-actions,
  .actions,
  .mobile-menu {
    display: none !important;
  }

  .app-shell,
  .app-main,
  .content {
    display: block;
    width: 100%;
    margin: 0;
    padding: 0;
  }

  .preview-paper,
  .card {
    border: 0;
    box-shadow: none;
  }

  .preview-watermark {
    color: rgba(185, 28, 28, 0.18);
  }

  @page {
    margin: 16mm;
    size: A4;
  }
}