:root {
  --page-bg: #f5f8fd;
  --surface: #ffffff;
  --surface-soft: #f9fbff;
  --ink: #132033;
  --muted: #55657b;
  --border: #d7e1ef;
  --border-strong: #bac9de;
  --accent: #1f6bff;
  --accent-rgb: 31, 107, 255;
  --accent-dark: #1654c9;
  --success: #11795a;
  --danger: #b93c3c;
  --shadow-lg: 0 28px 60px rgba(19, 32, 51, 0.12);
  --shadow-md: 0 18px 36px rgba(19, 32, 51, 0.08);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --container: min(1180px, calc(100% - 32px));
  --preview-accent: var(--accent);
  --preview-bg: #ffffff;
  --preview-muted: #64748b;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(var(--accent-rgb), 0.10), transparent 22%),
    linear-gradient(180deg, #ffffff 0%, var(--page-bg) 100%);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  cursor: pointer;
}

textarea {
  resize: vertical;
}

.site-backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 10% 10%, rgba(var(--accent-rgb), 0.08), transparent 18%),
    radial-gradient(circle at 90% 0%, rgba(19, 32, 51, 0.05), transparent 18%);
  z-index: -1;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(215, 225, 239, 0.8);
  background: rgba(255, 255, 255, 0.88);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 80px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
}

.site-nav a:hover,
.footer-links a:hover {
  color: var(--ink);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease, background 0.18s ease;
  font-weight: 700;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 16px 28px rgba(var(--accent-rgb), 0.22);
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  color: var(--ink);
  background: #ffffff;
  border-color: var(--border-strong);
}

.button-large {
  min-height: 54px;
  padding: 0 22px;
}

.header-button {
  white-space: nowrap;
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
}

.hero-section,
.benefits-section,
.steps-section,
.tool-section,
.templates-section,
.legal-section,
.faq-section {
  padding: 48px 0;
}

.hero-section {
  padding-top: 56px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 28px;
  align-items: center;
}

.hero-copy h1,
.section-heading h2,
.site-footer h2,
.preview-topbar h3,
.subpage-hero h1,
.article-card h2 {
  margin: 0;
  letter-spacing: -0.04em;
  line-height: 1.04;
}

.hero-copy h1 {
  max-width: 12ch;
  font-size: clamp(2.9rem, 6vw, 5rem);
}

.hero-text,
.section-heading p,
.hero-preview-card p,
.info-card p,
.step-card p,
.tool-card p,
.template-card p,
.legal-copy p,
.faq-item p,
.site-footer p,
.subpage-hero p,
.article-card p,
.article-card li,
.redirect-page p {
  color: var(--muted);
  line-height: 1.7;
}

.hero-text {
  max-width: 58ch;
  font-size: 1.1rem;
  margin: 18px 0 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 14px;
}

.trust-line {
  margin: 0;
  color: var(--muted);
  font-weight: 600;
}

.audience-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 22px 0 0;
  margin: 0;
  list-style: none;
}

.audience-list li,
.check-list li,
.article-list li {
  position: relative;
  padding-left: 24px;
}

.audience-list li::before,
.check-list li::before,
.article-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(var(--accent-rgb), 0.12);
}

.hero-preview-card,
.info-card,
.step-card,
.toolbar-card,
.tool-card,
.summary-card,
.invoice-preview-shell,
.template-card,
.legal-card,
.faq-item,
.article-card,
.cta-panel,
.redirect-page {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.hero-preview-card {
  padding: 22px;
}

.window-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.window-bar span {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #d7deea;
}

.mini-invoice {
  padding: 22px;
  border-radius: calc(var(--radius-lg) - 6px);
  background: linear-gradient(180deg, #ffffff 0%, #f6f9ff 100%);
  border: 1px solid #e2ebf7;
}

.mini-invoice-head,
.mini-line,
.preview-meta-row,
.invoice-total-row,
.footer-layout,
.subpage-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.mini-invoice-head {
  align-items: flex-start;
  margin-bottom: 18px;
}

.mini-invoice-head strong {
  display: block;
  margin-bottom: 4px;
}

.mini-invoice-head p,
.mini-grid p {
  margin: 0;
}

.mini-badge {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 999px;
  color: #ffffff;
  background: var(--accent);
  font-size: 0.88rem;
  font-weight: 700;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

.mini-grid h2 {
  margin: 0 0 6px;
  font-size: 0.85rem;
  color: var(--muted);
}

.mini-line {
  padding: 13px 0;
  border-top: 1px solid #e7edf7;
  color: var(--muted);
}

.mini-total {
  color: var(--ink);
  font-weight: 700;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2,
.subpage-hero h1 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.section-heading p {
  margin: 14px 0 0;
}

.benefits-grid,
.steps-grid,
.template-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-card,
.step-card,
.template-card {
  padding: 24px;
}

.info-card h3,
.step-card h3,
.tool-card h3,
.template-card h3,
.legal-card h3,
.article-card h2,
.article-card h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 16px;
  border-radius: 12px;
  color: var(--accent-dark);
  background: rgba(var(--accent-rgb), 0.12);
  font-weight: 800;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  gap: 24px;
  align-items: start;
}

.toolbar-card,
.tool-card,
.summary-card,
.invoice-preview-shell {
  padding: 22px;
}

.tool-form {
  display: grid;
  gap: 18px;
}

.toolbar-grid,
.field-grid {
  display: grid;
  gap: 16px;
}

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

.toolbar-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 16px;
}

.storage-note {
  margin: 0;
  font-size: 0.95rem;
}

.tool-card-group {
  display: grid;
  gap: 18px;
}

.card-heading {
  margin-bottom: 18px;
}

.card-heading h3,
.preview-topbar h3 {
  margin-bottom: 6px;
}

.line-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

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

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

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

.field {
  display: grid;
  gap: 8px;
}

.field-label {
  font-size: 0.95rem;
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 50px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  color: var(--ink);
}

.field textarea {
  min-height: 118px;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(var(--accent-rgb), 0.12);
}

.field-file small {
  color: var(--muted);
}

.field-span-2 {
  grid-column: span 2;
}

.field-span-3 {
  grid-column: span 3;
}

.line-items {
  display: grid;
  gap: 16px;
}

.line-item {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
}

.line-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.line-item-head strong {
  font-size: 1rem;
}

.line-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.line-summary {
  margin-top: 14px;
  display: flex;
  justify-content: flex-end;
  color: var(--muted);
  font-size: 0.95rem;
}

.action-bar {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: var(--shadow-md);
}

.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.form-message {
  margin: 14px 0 0;
  min-height: 24px;
  font-weight: 600;
}

.form-message.is-success {
  color: var(--success);
}

.form-message.is-error {
  color: var(--danger);
}

.preview-column {
  display: grid;
  gap: 16px;
  position: sticky;
  top: 96px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.summary-card span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.94rem;
}

.summary-card strong {
  font-size: 1.15rem;
}

.preview-topbar {
  margin-bottom: 18px;
}

.invoice-preview {
  padding: 24px;
  border-radius: calc(var(--radius-lg) - 4px);
  background: var(--preview-bg);
  border: 1px solid #e1e9f4;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.4);
}

.template-minimal {
  --preview-accent: var(--accent);
  --preview-bg: #ffffff;
}

.template-business {
  --preview-accent: #143d72;
  --preview-bg: #f9fbff;
}

.template-modern {
  --preview-accent: #0f8e70;
  --preview-bg: #f7fffc;
}

.preview-document-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 18px;
  margin-bottom: 18px;
  border-bottom: 2px solid rgba(var(--accent-rgb), 0.12);
}

.preview-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.preview-logo,
.preview-fallback {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  overflow: hidden;
}

.preview-logo {
  object-fit: cover;
}

.preview-fallback {
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--accent-rgb), 0.12);
  color: var(--preview-accent);
  font-weight: 800;
}

.preview-brand h4 {
  margin: 0 0 4px;
  font-size: 1.1rem;
}

.preview-brand p,
.preview-meta p,
.preview-block p,
.invoice-total-row span,
.preview-note p {
  margin: 0;
}

.preview-document-label {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  color: var(--preview-accent);
  background: rgba(var(--accent-rgb), 0.10);
  font-size: 0.86rem;
  font-weight: 700;
}

.preview-meta {
  display: grid;
  gap: 12px;
}

.preview-meta-row {
  color: var(--preview-muted);
  font-size: 0.94rem;
}

.preview-info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.preview-block {
  padding: 16px;
  border: 1px solid rgba(var(--accent-rgb), 0.12);
  border-radius: 16px;
  background: rgba(var(--accent-rgb), 0.04);
}

.preview-block h5 {
  margin: 0 0 10px;
  font-size: 0.9rem;
  color: var(--preview-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 18px;
  font-size: 0.94rem;
}

.preview-table th,
.preview-table td {
  padding: 12px 8px;
  text-align: left;
  border-bottom: 1px solid #e7eef8;
}

.preview-table th {
  color: var(--preview-muted);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.preview-table td:last-child,
.preview-table th:last-child,
.preview-table td:nth-last-child(2),
.preview-table th:nth-last-child(2),
.preview-table td:nth-last-child(3),
.preview-table th:nth-last-child(3) {
  text-align: right;
}

.preview-totals {
  display: grid;
  gap: 10px;
  margin-left: auto;
  max-width: 290px;
}

.invoice-total-row {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(var(--accent-rgb), 0.06);
}

.invoice-total-row.total {
  color: #ffffff;
  background: var(--preview-accent);
}

.preview-note {
  margin-top: 20px;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid #e7eef8;
  background: rgba(19, 32, 51, 0.02);
}

.preview-note h5 {
  margin: 0 0 8px;
  font-size: 0.92rem;
}

.template-grid .button,
.tool-card .button-secondary {
  width: fit-content;
}

.template-card.is-active {
  border-color: rgba(var(--accent-rgb), 0.42);
  box-shadow: 0 18px 36px rgba(var(--accent-rgb), 0.12);
}

.template-visual {
  position: relative;
  height: 164px;
  margin-bottom: 18px;
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid #dde7f3;
  background: linear-gradient(180deg, #ffffff 0%, #f7faff 100%);
}

.template-visual span {
  position: absolute;
  left: 18px;
  right: 18px;
  height: 12px;
  border-radius: 999px;
  background: #dce6f2;
}

.template-visual span:nth-child(1) {
  top: 24px;
  right: 100px;
}

.template-visual span:nth-child(2) {
  top: 54px;
}

.template-visual span:nth-child(3) {
  top: 84px;
  right: 60px;
}

.template-visual::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 88px;
  height: 88px;
  border-bottom-left-radius: 28px;
  background: rgba(var(--accent-rgb), 0.12);
}

.template-visual-business::after {
  background: rgba(20, 61, 114, 0.14);
}

.template-visual-modern::after {
  background: rgba(15, 142, 112, 0.14);
}

.legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 24px;
  align-items: center;
}

.legal-card {
  padding: 24px;
}

.check-list,
.article-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-item {
  padding: 0;
  overflow: hidden;
}

.faq-item summary {
  padding: 22px 24px;
  list-style: none;
  cursor: pointer;
  font-weight: 700;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item p {
  margin: 0;
  padding: 0 24px 22px;
}

.site-footer {
  padding: 24px 0 80px;
  border-top: 1px solid var(--border);
}

.footer-layout {
  align-items: flex-start;
}

.footer-layout > * {
  flex: 1 1 0;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 18px;
  color: var(--muted);
}

.footer-contact {
  font-weight: 700;
}

.footer-meta {
  color: var(--muted);
}

.mobile-sticky-cta {
  position: fixed;
  left: 16px;
  right: 16px;
  bottom: 16px;
  z-index: 25;
  display: none;
  align-items: center;
  justify-content: center;
  min-height: 54px;
  border-radius: 999px;
  color: #ffffff;
  background: var(--accent);
  box-shadow: 0 18px 32px rgba(var(--accent-rgb), 0.28);
  font-weight: 800;
}

.cookie-banner {
  position: fixed;
  right: 16px;
  bottom: 16px;
  z-index: 40;
  width: min(420px, calc(100% - 32px));
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-lg);
}

.cookie-banner p {
  margin: 0 0 12px;
  color: var(--muted);
}

.cookie-banner.is-hidden {
  display: none;
}

.cookie-actions {
  display: flex;
  gap: 10px;
}

.subpage-hero,
.article-card,
.cta-panel,
.redirect-page {
  padding: 28px;
}

.subpage-main {
  padding: 48px 0 80px;
}

.subpage-grid {
  align-items: start;
  gap: 24px;
}

.subpage-grid > * {
  flex: 1 1 0;
}

.subpage-hero {
  margin-bottom: 24px;
}

.article-stack {
  display: grid;
  gap: 18px;
}

.article-card p:last-child,
.article-card ul:last-child {
  margin-bottom: 0;
}

.article-card table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
}

.article-card th,
.article-card td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.cta-panel {
  position: sticky;
  top: 96px;
}

.cta-panel h2 {
  margin: 0 0 10px;
}

.cta-panel p {
  margin: 0 0 18px;
}

.redirect-page {
  width: min(680px, calc(100% - 32px));
  margin: 80px auto;
  text-align: center;
}

.redirect-page .button {
  margin-top: 14px;
}

@media (max-width: 1120px) {
  .tool-layout,
  .hero-grid,
  .legal-layout {
    grid-template-columns: 1fr;
  }

  .preview-column,
  .cta-panel {
    position: static;
  }

  .toolbar-grid,
  .field-grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .field-grid-3,
  .line-grid,
  .benefits-grid,
  .steps-grid,
  .template-grid {
    grid-template-columns: 1fr;
  }

  .field-span-3 {
    grid-column: span 1;
  }
}

@media (max-width: 820px) {
  .site-nav {
    display: none;
  }

  .header-inner {
    min-height: 72px;
  }

  .hero-section,
  .benefits-section,
  .steps-section,
  .tool-section,
  .templates-section,
  .legal-section,
  .faq-section,
  .subpage-main {
    padding: 32px 0;
  }

  .hero-copy h1 {
    max-width: none;
    font-size: clamp(2.4rem, 10vw, 3.6rem);
  }

  .audience-list,
  .summary-grid,
  .footer-links,
  .preview-info-grid,
  .field-grid-2,
  .field-grid-4,
  .toolbar-grid {
    grid-template-columns: 1fr;
  }

  .field-span-2 {
    grid-column: span 1;
  }

  .footer-layout {
    display: grid;
    gap: 22px;
  }

  .mobile-sticky-cta {
    display: inline-flex;
  }

  .site-footer {
    padding-bottom: 110px;
  }
}

@media (max-width: 560px) {
  .container {
    width: min(100% - 24px, 1180px);
  }

  .hero-preview-card,
  .info-card,
  .step-card,
  .toolbar-card,
  .tool-card,
  .summary-card,
  .invoice-preview-shell,
  .template-card,
  .legal-card,
  .faq-item,
  .article-card,
  .cta-panel,
  .redirect-page,
  .action-bar {
    border-radius: 20px;
  }

  .line-item {
    padding: 16px;
  }

  .line-item-head,
  .line-heading,
  .mini-invoice-head,
  .preview-document-header {
    flex-direction: column;
    align-items: stretch;
  }

  .action-buttons,
  .hero-actions,
  .cookie-actions {
    display: grid;
    grid-template-columns: 1fr;
  }
}