:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --secondary: #64748B;
  --success: #16A34A;
  --warning: #D97706;
  --danger: #DC2626;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --text: #1E293B;
  --text-muted: #64748B;
  --border: #E2E8F0;
}

* { box-sizing: border-box; }

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

.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 220px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 20px 12px;
  flex-shrink: 0;
}

.sidebar-logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  padding: 0 10px 20px;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  display: block;
  padding: 12px 14px;
  border-radius: 10px;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 500;
  transition: all 0.2s ease;
}

.nav-item:hover { background: var(--bg); }
.nav-item.active { background: var(--primary); color: white; }

.main-content {
  flex: 1;
  padding: 24px 32px 60px;
  max-width: 980px;
}

.page-title {
  font-size: 26px;
  margin: 0 0 6px;
}

.page-subtitle {
  color: var(--text-muted);
  margin: 0 0 28px;
  font-size: 15px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.card h2 {
  font-size: 15px;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0 0 16px;
}

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 14px; }
.grid-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 14px; }

.menu-toggle {
  display: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

@media (max-width: 768px) {
  .app-layout { flex-direction: column; }
  .sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--border); padding: 12px 16px; }
  .sidebar-logo { padding: 0; display: flex; align-items: center; justify-content: space-between; }
  .menu-toggle { display: flex; }
  .sidebar-nav, .sidebar-footer { display: none; }
  .sidebar.open .sidebar-nav, .sidebar.open .sidebar-footer { display: flex; flex-direction: column; align-items: stretch; }
  .sidebar.open { background: #DBEAFE; box-shadow: 0 8px 20px rgba(0,0,0,0.18); border-bottom: 2px solid var(--primary); }
  .sidebar-nav { margin-top: 12px; }
  .sidebar-footer { margin-top: 8px; padding-top: 12px; border-top: 1px solid var(--border); gap: 4px; }
  .sidebar-footer .sidebar-user { padding: 4px 14px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .main-content { padding: 16px; }
}

.form-group { margin-bottom: 4px; }

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

input, select, textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1.5px solid var(--border);
  border-radius: 9px;
  font-size: 15px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--primary);
}

textarea { resize: vertical; min-height: 60px; }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}
.checkbox-row input { width: auto; }
.checkbox-row label { margin: 0; font-weight: 500; color: var(--text); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-secondary { background: var(--bg); color: var(--text); border: 1.5px solid var(--border); }
.btn-secondary:hover { background: var(--border); }
.btn-danger { background: #FEE2E2; color: var(--danger); }
.btn-block { width: 100%; }
.btn-lg { padding: 18px 32px; font-size: 18px; }

.actions-bar {
  position: sticky;
  bottom: 0;
  background: linear-gradient(to top, var(--bg) 70%, transparent);
  padding: 20px 0 8px;
}

.select-cliente {
  margin-bottom: 14px;
}

.result-box {
  text-align: center;
  padding: 30px;
}

.result-box .doc-number {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.result-box h1 {
  font-size: 24px;
  margin: 0 0 24px;
  color: var(--success);
}

.qr-box {
  background: white;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  display: inline-block;
  margin-bottom: 20px;
}

.qr-box img { width: 220px; height: 220px; display: block; }

.qr-hint {
  color: var(--text-muted);
  font-size: 14px;
  max-width: 420px;
  margin: 0 auto 24px;
}

.link-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--text-muted);
  word-break: break-all;
  margin: 0 auto 20px;
  max-width: 500px;
}

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

.data-table th {
  text-align: left;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  padding: 10px 12px;
  border-bottom: 1.5px solid var(--border);
}

.data-table td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.data-table tr:hover { background: var(--bg); }

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 40px; margin-bottom: 10px; }

.sidebar {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.sidebar-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 12px;
  margin-top: 12px;
}

.sidebar-user {
  font-size: 12px;
  color: var(--text-muted);
  padding: 0 14px 8px;
  word-break: break-all;
}

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  padding: 20px;
}

.auth-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px;
  width: 100%;
  max-width: 420px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

.auth-footer {
  text-align: center;
  margin-top: 18px;
  font-size: 14px;
  color: var(--text-muted);
}

.auth-footer a { color: var(--primary); font-weight: 600; text-decoration: none; }

.error-msg {
  background: #FEE2E2;
  color: var(--danger);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  margin-bottom: 16px;
}

.status-pill {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
}
.status-pill.firmado { background: #DCFCE7; color: var(--success); }
.status-pill.pendiente_firmas { background: #FEF3C7; color: var(--warning); }

.signer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.signer-row:last-child { border-bottom: none; }

/* Landing page */
.landing-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 16px 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.landing-nav-actions { display: flex; gap: 10px; align-items: center; }

@media (max-width: 640px) {
  .landing-nav {
    flex-direction: column;
    gap: 10px;
    padding: 12px 16px;
  }
  .landing-nav img {
    position: static !important;
    transform: none !important;
    left: auto !important;
    height: 34px !important;
  }
  .landing-nav-actions {
    width: 100%;
    justify-content: center;
  }
  .landing-nav-actions .btn { flex: 1; text-align: center; padding-left: 12px; padding-right: 12px; }
}

.landing-hero {
  position: relative;
  text-align: center;
  padding: 72px 20px 64px;
  background: var(--bg);
  overflow: hidden;
}

.landing-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: url('/static/hero-bg.svg') center bottom / cover no-repeat;
  opacity: 0.16;
  z-index: 0;
}

.landing-hero > * { position: relative; z-index: 1; }

.landing-badge {
  display: inline-block;
  background: #FEE2E2;
  color: var(--danger);
  font-weight: 700;
  font-size: 13px;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.landing-hero h1 {
  font-size: 40px;
  line-height: 1.15;
  margin: 0 0 18px;
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
}

.landing-hero p.lead {
  font-size: 18px;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

.landing-hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.landing-section {
  max-width: 1080px;
  margin: 0 auto;
  padding: 72px 24px;
}

.landing-section-title {
  text-align: center;
  font-size: 30px;
  margin: 0 0 12px;
}

.landing-section-lead {
  text-align: center;
  color: var(--text-muted);
  font-size: 16px;
  max-width: 620px;
  margin: 0 auto 48px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 26px 22px;
}

.feature-card .icon { font-size: 30px; margin-bottom: 12px; }
.feature-card h3 { font-size: 16px; margin: 0 0 8px; }
.feature-card p { font-size: 14px; color: var(--text-muted); line-height: 1.6; margin: 0; }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

.step-card { text-align: center; }
.step-number {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 14px;
}
.step-card h3 { font-size: 15px; margin: 0 0 6px; }
.step-card p { font-size: 13px; color: var(--text-muted); margin: 0; }

.compliance-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.compliance-table th, .compliance-table td {
  padding: 14px 18px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--border);
}
.compliance-table th { background: var(--bg); font-size: 13px; text-transform: uppercase; color: var(--text-muted); }
.compliance-table tr:last-child td { border-bottom: none; }

.billing-toggle {
  display: flex;
  justify-content: center;
  gap: 4px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
  max-width: 280px;
  margin: 0 auto;
}

.billing-toggle-btn {
  border: none;
  background: transparent;
  padding: 10px 24px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 14px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.billing-toggle-btn.active {
  background: var(--primary);
  color: white;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}

.pricing-card {
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}

.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: 0 8px 24px rgba(37,99,235,0.15);
  position: relative;
}

.pricing-card.featured::before {
  content: "Más elegido";
  position: absolute;
  top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--primary);
  color: white;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 20px;
}

.pricing-card h3 { font-size: 16px; margin: 4px 0 4px; color: var(--text-muted); font-weight: 600; }
.pricing-card .price { font-size: 44px; font-weight: 800; margin: 4px 0; color: #0F172A; }
.pricing-card .price .periodo { font-size: 14px; font-weight: 500; color: var(--text-muted); }
.pricing-card .strike { text-decoration: line-through; color: var(--text-muted); font-size: 14px; font-weight: 500; }
.pricing-card ul { list-style: none; padding: 0; margin: 18px 0; flex: 1; }
.pricing-card li { font-size: 13px; padding: 6px 0; color: var(--text); }
.pricing-card li::before { content: "✓ "; color: var(--success); font-weight: 700; }

.install-steps { list-style: none; padding: 0; margin: 0; counter-reset: install-step; }

.install-steps li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}
.install-steps li:last-child { border-bottom: none; }

.install-steps .step-num {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-weight: 700;
  font-size: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ui-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 3px 10px;
  font-size: 14px;
  font-weight: 700;
  color: var(--primary);
  margin: 0 2px;
  vertical-align: middle;
}

.browser-bar-demo {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 10px;
  margin: 10px 0 4px;
  max-width: 420px;
}

.browser-bar-url {
  font-size: 13px;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.browser-bar-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #DBEAFE;
  color: var(--primary);
  box-shadow: 0 0 0 3px #BFDBFE;
}

.faq-item { border-bottom: 1px solid var(--border); padding: 18px 0; }
.faq-item h3 { font-size: 15px; margin: 0 0 6px; }
.faq-item p { font-size: 14px; color: var(--text-muted); margin: 0; line-height: 1.6; }

.urgency-band {
  background: #FEF2F2;
  border-top: 1px solid #FECACA;
  border-bottom: 1px solid #FECACA;
  padding: 48px 24px;
}

.urgency-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.urgency-icon { font-size: 36px; line-height: 1; flex-shrink: 0; }
.urgency-inner h2 { font-size: 22px; margin: 0 0 10px; color: #991B1B; }
.urgency-inner p { font-size: 15px; line-height: 1.6; color: #7F1D1D; margin: 0 0 18px; }

@media (max-width: 700px) {
  .urgency-inner { flex-direction: column; text-align: center; align-items: center; }
}

.cta-band {
  background: var(--primary);
  color: white;
  text-align: center;
  padding: 64px 24px;
}
.cta-band h2 { font-size: 28px; margin: 0 0 12px; }
.cta-band p { opacity: 0.9; margin: 0 0 28px; }
.cta-band .btn-primary { background: white; color: var(--primary); }
.cta-band .btn-primary:hover { background: #F1F5F9; }

.landing-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  font-size: 13px;
  color: var(--text-muted);
}
.landing-footer a { color: var(--text-muted); text-decoration: none; margin: 0 8px; }
.landing-footer a:hover { color: var(--primary); }

@media (max-width: 900px) {
  .feature-grid, .steps-grid, .pricing-grid { grid-template-columns: 1fr; }
  .landing-hero h1 { font-size: 30px; }
}

.legal-topbar {
  position: relative;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.legal-topbar img {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  height: 48px;
  width: auto;
}

@media (max-width: 640px) {
  .legal-topbar { flex-direction: column; gap: 8px; padding: 12px 16px; }
  .legal-topbar img { position: static; transform: none; height: 36px; }
}

.legal-topbar a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
}

.legal-wrapper {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.legal-wrapper h1 {
  font-size: 26px;
  margin-bottom: 4px;
}

.legal-wrapper .legal-updated {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 32px;
}

.legal-wrapper h2 {
  font-size: 18px;
  margin: 32px 0 12px;
  color: var(--primary-dark);
}

.legal-wrapper h3 {
  font-size: 15px;
  margin: 20px 0 8px;
}

.legal-wrapper p, .legal-wrapper li {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
}

.legal-wrapper ul, .legal-wrapper ol {
  padding-left: 22px;
  margin: 8px 0 16px;
}

.legal-wrapper table {
  width: 100%;
  border-collapse: collapse;
  margin: 16px 0;
  font-size: 14px;
}

.legal-wrapper th, .legal-wrapper td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
  vertical-align: top;
}

.legal-wrapper th {
  background: var(--bg);
}

.legal-notice {
  background: #FEF3C7;
  border: 1px solid #FCD34D;
  border-radius: 10px;
  padding: 14px 18px;
  font-size: 14px;
  margin-bottom: 24px;
}

.checkbox-row a { color: var(--primary); text-decoration: none; font-weight: 600; }

.badge {
  display: inline-block;
  background: #DBEAFE;
  color: var(--primary-dark);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}