/* NEEMANN Fremdfirmenunterweisung – design tokens see docs/design-system.md */
@font-face { font-family: "Source Sans 3"; src: url("../fonts/SourceSans3-Regular.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Source Sans 3"; src: url("../fonts/SourceSans3-Semibold.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Lexend"; src: url("../fonts/Lexend-SemiBold.ttf") format("truetype"); font-weight: 600; font-display: swap; }

:root {
  --color-primary: #0060A9;
  --color-primary-hover: #004C86;
  --color-primary-soft: #E6F0F8;
  --color-on-primary: #FFFFFF;
  --color-foreground: #111418;
  --color-muted-foreground: #4B5563;
  --color-background: #F4F6F9;
  --color-card: #FFFFFF;
  --color-border: #CBD2DB;
  --color-success: #15803D;
  --color-success-soft: #ECFDF3;
  --color-destructive: #B91C1C;
  --color-destructive-soft: #FEF2F2;
  --color-ring: #0060A9;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 2px rgba(17, 20, 24, .06), 0 4px 16px rgba(17, 20, 24, .06);
  --font-body: "Source Sans 3", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-heading: "Lexend", var(--font-body);
  --touch: 48px;
  --t: 180ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-foreground);
  background: var(--color-background);
}
a { color: var(--color-primary); text-underline-offset: 2px; }
a:hover { color: var(--color-primary-hover); }
:focus-visible { outline: 3px solid var(--color-ring); outline-offset: 2px; border-radius: 4px; }
/* Headings receive programmatic focus on step change (screen readers); no visible ring for that. */
h1[tabindex="-1"]:focus, h2[tabindex="-1"]:focus, section[tabindex="-1"]:focus { outline: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 8px; top: -48px; background: var(--color-primary); color: var(--color-on-primary); padding: 8px 12px; border-radius: var(--radius-sm); z-index: 10; }
.skip-link:focus { top: 8px; }
[hidden] { display: none !important; }

/* ── Header ───────────────────────────────────────────── */
.site-header { background: var(--color-card); border-bottom: 1px solid var(--color-border); }
.site-header__inner { max-width: 720px; margin: 0 auto; padding: 14px 16px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.site-header__logo { height: 44px; width: auto; display: block; }
.site-header__company { font-size: 13px; color: var(--color-muted-foreground); text-align: right; }

/* ── Layout ───────────────────────────────────────────── */
.shell { max-width: 720px; margin: 0 auto; padding: 20px 16px 48px; }
h1, h2, h3 { font-family: var(--font-heading); font-weight: 600; line-height: 1.25; margin: 0 0 12px; letter-spacing: -.01em; }
h1 { font-size: 26px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
p { margin: 0 0 16px; }
.muted { color: var(--color-muted-foreground); }
.small { font-size: 14px; }

/* ── Progress ─────────────────────────────────────────── */
.progress { margin: 0 0 16px; }
.progress__label { display: flex; justify-content: space-between; font-size: 14px; color: var(--color-muted-foreground); margin-bottom: 6px; }
.progress__label strong { color: var(--color-foreground); font-weight: 600; }
.progress__track { height: 6px; background: #DCE3EC; border-radius: 999px; overflow: hidden; }
.progress__bar { height: 100%; width: 0; background: var(--color-primary); border-radius: 999px; transition: width var(--t) ease-out; }

/* ── Card ─────────────────────────────────────────────── */
.card { background: var(--color-card); border-radius: var(--radius); box-shadow: var(--shadow); border-top: 4px solid var(--color-primary); padding: 24px; }
.divider { height: 1px; background: var(--color-border); margin: 20px 0; border: 0; }
.info-box { background: var(--color-primary-soft); border-left: 4px solid var(--color-primary); padding: 12px 14px; border-radius: var(--radius-sm); margin-bottom: 16px; }

/* ── Form fields ──────────────────────────────────────── */
.field { display: block; margin-bottom: 16px; }
.field__label { display: block; font-weight: 600; margin-bottom: 6px; }
.field__label .req { color: var(--color-destructive); margin-left: 2px; }
.field__hint { display: block; font-size: 14px; color: var(--color-muted-foreground); margin-top: 4px; }
.field__error { display: block; font-size: 14px; color: var(--color-destructive); margin-top: 4px; }
input[type=text], input[type=email], input[type=tel], input[type=date], input[type=time], select, textarea {
  width: 100%;
  min-height: var(--touch);
  font: inherit;
  font-size: 16px; /* prevents iOS zoom */
  color: var(--color-foreground);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  transition: border-color var(--t), box-shadow var(--t);
}
textarea { min-height: 96px; resize: vertical; }
input:hover, select:hover, textarea:hover { border-color: #9AA5B4; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(0, 96, 169, .25); }
input:disabled, textarea:disabled { background: #F1F3F6; color: #8A94A3; cursor: not-allowed; }
input[aria-invalid=true], textarea[aria-invalid=true] { border-color: var(--color-destructive); }
.row { display: grid; gap: 12px; grid-template-columns: 1fr 1fr; }
.row--phone { grid-template-columns: minmax(130px, 38%) 1fr; }
.row--address { grid-template-columns: minmax(110px, 30%) 1fr; }

/* ── Choices (checkbox / radio rows) ──────────────────── */
.choice {
  display: flex; align-items: flex-start; gap: 12px;
  min-height: var(--touch);
  padding: 12px 14px; margin-bottom: 10px;
  border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  background: #fff; cursor: pointer;
  transition: border-color var(--t), background-color var(--t);
}
.choice:hover { border-color: var(--color-primary); }
.choice input { flex: none; width: 22px; height: 22px; margin: 1px 0 0; accent-color: var(--color-primary); cursor: pointer; }
.choice:has(input:checked) { border-color: var(--color-primary); background: var(--color-primary-soft); }
.choice:has(input:disabled) { cursor: not-allowed; opacity: .6; }
.choice:has(input:disabled):hover { border-color: var(--color-border); }
.choice--error { border-color: var(--color-destructive); background: var(--color-destructive-soft); }
fieldset { border: 0; padding: 0; margin: 0 0 20px; min-width: 0; }
legend { font-weight: 600; margin-bottom: 10px; padding: 0; }
.question { padding: 16px; border: 1px solid var(--color-border); border-radius: var(--radius); margin-bottom: 16px; }
.question legend { font-family: var(--font-heading); font-size: 17px; float: left; width: 100%; margin-bottom: 12px; }
.question legend + * { clear: both; }
.question__msg { color: var(--color-destructive); font-size: 14px; font-weight: 600; display: flex; gap: 6px; align-items: center; }

/* ── Buttons ──────────────────────────────────────────── */
.actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: space-between; align-items: center; margin-top: 24px; }
.actions--end { justify-content: flex-end; }
.btn-group { display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: var(--touch); padding: 10px 20px;
  font: inherit; font-weight: 600; font-size: 16px;
  border-radius: var(--radius-sm); border: 1px solid var(--color-border);
  background: #fff; color: var(--color-foreground);
  cursor: pointer; text-decoration: none;
  transition: background-color var(--t), border-color var(--t), color var(--t), transform 80ms;
}
.btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.btn:active { transform: translateY(1px); }
.btn--primary { background: var(--color-primary); border-color: var(--color-primary); color: var(--color-on-primary); }
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--color-on-primary); }
.btn--danger { color: var(--color-destructive); }
.btn--danger:hover { border-color: var(--color-destructive); color: var(--color-destructive); }
.btn:disabled, .btn[aria-disabled=true] { background: #E5E9EF; border-color: #E5E9EF; color: #7A8494; cursor: not-allowed; transform: none; }
.btn--sm { min-height: 40px; padding: 6px 12px; font-size: 15px; }
.icon { width: 20px; height: 20px; flex: none; }

/* ── PDF viewer ───────────────────────────────────────── */
.pdf { border: 1px solid var(--color-border); border-radius: var(--radius); background: #EEF1F5; margin-bottom: 16px; overflow: hidden; }
.pdf__scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; background: #EEF1F5; }
.pdf__canvas { display: block; margin: 0 auto; background: #fff; }
.pdf__hint { font-size: 14px; color: var(--color-muted-foreground); text-align: center; padding: 6px 8px; background: #fff; border-top: 1px solid var(--color-border); }
.pdf__controls { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px; background: #fff; border-top: 1px solid var(--color-border); }
.pdf__page { font-size: 15px; font-weight: 600; text-align: center; flex: 1; white-space: nowrap; }
.pdf__status { padding: 40px 16px; text-align: center; color: var(--color-muted-foreground); }
.pdf__read { display: flex; align-items: center; gap: 6px; justify-content: center; font-size: 14px; color: var(--color-success); padding: 0 8px 8px; background: #fff; }
.spinner { width: 32px; height: 32px; margin: 0 auto 8px; border: 3px solid #D5DCE5; border-top-color: var(--color-primary); border-radius: 50%; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Signature ────────────────────────────────────────── */
.sig { display: block; width: 100%; height: 220px; border: 2px dashed var(--color-border); border-radius: var(--radius); background: #fff; touch-action: none; }
.sig:focus-visible { border-color: var(--color-primary); }

/* ── Status messages ──────────────────────────────────── */
.alert { padding: 12px 14px; border-radius: var(--radius-sm); margin-top: 16px; display: flex; gap: 10px; align-items: flex-start; }
.alert--error { background: var(--color-destructive-soft); color: var(--color-destructive); border: 1px solid #F5C2C2; }
.alert--info { background: var(--color-primary-soft); color: var(--color-foreground); border: 1px solid #BBD3EA; }
.success { text-align: center; padding: 16px 0; }
.success__icon { width: 64px; height: 64px; color: var(--color-success); margin: 0 auto 12px; display: block; }

.site-footer { max-width: 720px; margin: 0 auto; padding: 0 16px 32px; font-size: 14px; color: var(--color-muted-foreground); display: flex; gap: 16px; flex-wrap: wrap; }

/* ── Honeypot (off-screen, not display:none so bots fill it) ── */
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

@media (max-width: 600px) {
  .card { padding: 18px 16px; border-radius: 8px; }
  h1 { font-size: 22px; }
  h2 { font-size: 20px; }
  .row { grid-template-columns: 1fr; }
  .row--phone { grid-template-columns: 120px 1fr; }
  .row--address { grid-template-columns: 100px 1fr; }
  .actions { flex-direction: column-reverse; align-items: stretch; }
  .actions .btn { width: 100%; }
  .btn-group { flex-direction: column-reverse; }
  .site-header__company { display: none; }
  .site-header__logo { height: 34px; }
  .sig { height: 200px; }
}
@media (max-width: 374px) {
  .shell { padding: 12px 10px 32px; }
  .card { padding: 14px 12px; }
  .row--phone, .row--address { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0ms !important; animation-duration: 0ms !important; scroll-behavior: auto !important; }
}