/* BauZeit marketing landing — mobile-first, design tokens aligned with public/index.html */
:root {
  --bz-color-action-primary: #1d4ed8;
  --bz-color-action-clock-in: #16a34a;
  --bz-color-surface-base: #f8f9fa;
  --bz-color-surface-card: #ffffff;
  --bz-color-surface-muted: #f3f4f6;
  --bz-color-text-primary: #111827;
  --bz-color-text-secondary: #6b7280;
  --bz-color-text-inverse: #ffffff;
  --bz-color-border-subtle: #e5e7eb;
  --bz-space-2: 8px;
  --bz-space-3: 12px;
  --bz-space-4: 16px;
  --bz-space-6: 24px;
  --bz-space-8: 32px;
  --bz-radius: 8px;
  --bz-max-content: 720px;
  --bz-max-wide: 1100px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  color: var(--bz-color-text-primary);
  background: var(--bz-color-surface-base);
}

a {
  color: var(--bz-color-action-primary);
}

.bz-landing-header {
  background: var(--bz-color-action-primary);
  color: var(--bz-color-text-inverse);
  padding: var(--bz-space-4);
}

.bz-landing-header-inner {
  max-width: var(--bz-max-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--bz-space-4);
  flex-wrap: wrap;
}

.bz-landing-brand {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.bz-landing-brand span {
  font-weight: 500;
  opacity: 0.9;
  font-size: 14px;
  display: block;
}

.bz-landing-lang {
  font-size: 14px;
  margin: 0;
}

.bz-landing-lang a {
  color: var(--bz-color-text-inverse);
  text-decoration: underline;
  text-underline-offset: 3px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--bz-space-2);
}

.bz-landing-hero {
  max-width: var(--bz-max-wide);
  margin: 0 auto;
  padding: var(--bz-space-8) var(--bz-space-4);
}

.bz-landing-hero h2 {
  margin: 0 0 var(--bz-space-3);
  font-size: clamp(26px, 5vw, 36px);
  line-height: 1.2;
  max-width: 18ch;
}

.bz-landing-hero .lead {
  margin: 0 0 var(--bz-space-6);
  font-size: 18px;
  color: var(--bz-color-text-secondary);
  max-width: 42ch;
}

.bz-landing-cta-row {
  display: flex;
  flex-direction: column;
  gap: var(--bz-space-3);
  max-width: 360px;
}

.bz-landing-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 var(--bz-space-6);
  border-radius: var(--bz-radius);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  text-align: center;
}

.bz-landing-btn-primary {
  background: var(--bz-color-action-primary);
  color: var(--bz-color-text-inverse);
}

.bz-landing-btn-secondary {
  background: var(--bz-color-surface-card);
  color: var(--bz-color-action-primary);
  border-color: var(--bz-color-action-primary);
}

.bz-landing-features {
  background: var(--bz-color-surface-card);
  border-top: 1px solid var(--bz-color-border-subtle);
  border-bottom: 1px solid var(--bz-color-border-subtle);
  padding: var(--bz-space-8) var(--bz-space-4);
}

.bz-landing-features-inner {
  max-width: var(--bz-max-wide);
  margin: 0 auto;
  display: grid;
  gap: var(--bz-space-6);
}

@media (min-width: 720px) {
  .bz-landing-features-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .bz-landing-features-inner {
    grid-template-columns: repeat(4, 1fr);
  }

  .bz-landing-cta-row {
    flex-direction: row;
    flex-wrap: wrap;
    max-width: none;
  }
}

.bz-landing-feature {
  margin: 0;
}

.bz-landing-feature h3 {
  margin: 0 0 var(--bz-space-2);
  font-size: 17px;
  display: flex;
  align-items: flex-start;
  gap: var(--bz-space-2);
}

.bz-landing-feature p {
  margin: 0;
  font-size: 15px;
  color: var(--bz-color-text-secondary);
}

.bz-landing-feature-icon {
  flex-shrink: 0;
  font-size: 20px;
  line-height: 1.2;
}

.bz-landing-trust {
  max-width: var(--bz-max-content);
  margin: 0 auto;
  padding: var(--bz-space-6) var(--bz-space-4);
  font-size: 14px;
  color: var(--bz-color-text-secondary);
  background: var(--bz-color-surface-muted);
  border-radius: var(--bz-radius);
}

.bz-landing-trust strong {
  color: var(--bz-color-text-primary);
}

.bz-landing-footer {
  max-width: var(--bz-max-wide);
  margin: 0 auto;
  padding: var(--bz-space-8) var(--bz-space-4) var(--bz-space-8);
  font-size: 14px;
  color: var(--bz-color-text-secondary);
  border-top: 1px solid var(--bz-color-border-subtle);
}

.bz-landing-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--bz-space-3) var(--bz-space-6);
  margin-bottom: var(--bz-space-4);
}

.bz-landing-footer a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.bz-landing-locale {
  scroll-margin-top: 72px;
}

/* Progressive enhancement: show one locale when JS toggles html[lang] */
html.js .bz-landing-locale[hidden] {
  display: none !important;
}

/* Request-access lead form (BAU-247) */
.bz-lead-page {
  max-width: 480px;
}

.bz-lead-form {
  display: flex;
  flex-direction: column;
  gap: var(--bz-space-4);
  margin-bottom: var(--bz-space-6);
}

.bz-lead-field label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--bz-space-2);
  font-size: 15px;
}

.bz-lead-field input,
.bz-lead-field select,
.bz-lead-field textarea {
  width: 100%;
  min-height: 48px;
  padding: var(--bz-space-3);
  font-size: 16px;
  font-family: inherit;
  border: 1px solid var(--bz-color-border-subtle);
  border-radius: var(--bz-radius);
  background: var(--bz-color-surface-card);
  color: var(--bz-color-text-primary);
}

.bz-lead-field textarea {
  min-height: 120px;
  resize: vertical;
}

.bz-lead-field input[aria-invalid='true'],
.bz-lead-field select[aria-invalid='true'],
.bz-lead-field textarea[aria-invalid='true'] {
  border-color: var(--bz-color-status-error, #dc2626);
}

.bz-lead-field-error {
  margin: var(--bz-space-2) 0 0;
  font-size: 14px;
  color: var(--bz-color-status-error, #dc2626);
}

.bz-lead-honeypot {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.bz-lead-submit {
  width: 100%;
  border: none;
  cursor: pointer;
}

.bz-lead-submit:disabled {
  opacity: 0.7;
  cursor: wait;
}

.bz-lead-status {
  display: flex;
  align-items: flex-start;
  gap: var(--bz-space-3);
  padding: var(--bz-space-4);
  border-radius: var(--bz-radius);
  margin-bottom: var(--bz-space-4);
  font-size: 15px;
  border: 1px solid transparent;
}

.bz-lead-status-icon {
  flex-shrink: 0;
  font-size: 20px;
  line-height: 1.3;
  font-weight: 700;
}

.bz-lead-status-text {
  flex: 1;
}

.bz-lead-status--success {
  background: #ecfdf5;
  color: #166534;
  border-color: #86efac;
}

.bz-lead-status--warning {
  background: #fffbeb;
  color: #92400e;
  border-color: #fcd34d;
}

.bz-lead-status--error {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fca5a5;
}