/* ═══════════════════════════════════════════════════════════════════
   futurentia — Landingpage Stylesheet
   ═══════════════════════════════════════════════════════════════════ */

/* ─── Design Tokens ─────────────────────────────────────────────── */
:root {
  --navy:       #0B1F3A;
  --navy-soft:  #1F3A63;
  --navy-faint: #5B6D8C;
  --rule:       #D7DCE5;
  --paper:      #FFFFFF;
  --paper-alt:  #F6F7F9;

  --font-serif: 'Source Serif 4', Georgia, 'Times New Roman', serif;
  --font-sans:  'IBM Plex Sans', Arial, sans-serif;
  --font-mono:  'IBM Plex Mono', 'Courier New', monospace;

  --max:        760px;
  --pad-x:      28px;
  --transition: 150ms ease;
}

/* ─── Reset & Base ───────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--navy);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

ol.steps { list-style: none; margin: 0; padding: 0; }

/* ─── Layout ─────────────────────────────────────────────────────── */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section      { padding: 88px 0; }
.section.tight{ padding: 64px 0; }
.rule         { border-top: 1px solid var(--rule); }
.alt          { background: var(--paper-alt); }

/* ─── Typography ─────────────────────────────────────────────────── */
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  margin: 0;
  color: var(--navy);
}

h1 {
  font-size: clamp(32px, 5vw, 50px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.22;
  letter-spacing: -0.005em;
}

h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 8px;
}

p { margin: 0 0 18px; }
p:last-child { margin-bottom: 0; }

.lead      { font-size: 20px; color: var(--navy-soft); max-width: 600px; }
.muted     { color: var(--navy-faint); }
.body-wide { max-width: 600px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--navy-faint);
  margin: 0 0 18px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}

/* ─── Site Header ────────────────────────────────────────────────── */
.site-header { padding: 36px var(--pad-x) 0; }

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

.mark__name {
  display: block;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 21px;
  letter-spacing: 0.01em;
}

.mark__slogan {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 15px;
  color: var(--navy-soft);
  margin-top: 4px;
}

/* ─── Hero ───────────────────────────────────────────────────────── */
.hero { padding: 64px 0 80px; }
.hero h1   { margin-bottom: 24px; }
.hero .lead{ margin-bottom: 36px; }

.cta-row {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  align-items: center;
}

/* ─── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  background: var(--navy);
  color: #fff;
  text-decoration: none;
  padding: 14px 26px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  border-radius: 2px;
  letter-spacing: 0.01em;
  border: none;
  cursor: pointer;
  transition: background var(--transition);
}

.btn:hover,
.btn:focus-visible {
  background: var(--navy-soft);
  outline: none;
}

.btn:focus-visible {
  outline: 2px solid var(--navy-faint);
  outline-offset: 3px;
}

.btn--ghost {
  background: none;
  color: var(--navy);
  padding: 14px 0;
  border-bottom: 1px solid var(--navy);
  border-radius: 0;
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: none;
  color: var(--navy-soft);
  border-color: var(--navy-soft);
}

.btn--light {
  background: #fff;
  color: var(--navy);
}

.btn--light:hover,
.btn--light:focus-visible {
  background: var(--paper-alt);
  color: var(--navy);
}

/* ─── Blockquote ─────────────────────────────────────────────────── */
blockquote,
.quote-line {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: 23px;
  line-height: 1.45;
  color: var(--navy);
  margin: 28px 0;
  padding-left: 22px;
  border-left: 2px solid var(--navy);
}

blockquote p { margin: 0; }

/* ─── AI / HI Two-Column ─────────────────────────────────────────── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin: 40px 0 8px;
}

.lens-label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-faint);
  margin: 0 0 10px;
}

.pointe-box {
  margin-top: 36px;
  padding-top: 32px;
  border-top: 1px solid var(--rule);
}

/* ─── Three Score Cards ──────────────────────────────────────────── */
.score-cards-header {
  margin-top: 48px;
  padding-top: 36px;
  border-top: 1px solid var(--rule);
}

.three-col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 24px;
}

/* ─── Modell-Diagramm ────────────────────────────────────────────── */
.model-diagram { margin: 40px 0 32px; }

.model-diagram svg {
  width: 100%;
  height: auto;
  display: block;
}

.diagram-caption {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--navy-faint);
  letter-spacing: 0.03em;
  margin-top: 12px;
  text-align: center;
}

/* ─── Zwei-Ebenen-Modell ─────────────────────────────────────────── */
.levels { margin-top: 8px; }

.level {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 20px;
  padding: 32px 0;
}

.level + .level { border-top: 1px solid var(--rule); }

.lvl-no {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--navy-faint);
  padding-top: 4px;
}

/* ─── Methodik Schritte ──────────────────────────────────────────── */
.steps { margin-top: 36px; }

.step {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 20px;
  padding: 26px 0;
}

.step + .step { border-top: 1px solid var(--rule); }

.step .num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--navy-faint);
  padding-top: 3px;
}

.step h3 { margin-bottom: 8px; }
.step p  { margin: 0; }

.agg {
  margin-top: 32px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--navy-soft);
  letter-spacing: 0.01em;
}

/* ─── Nutzen ─────────────────────────────────────────────────────── */
.benefit {
  padding: 28px 0;
  border-top: 1px solid var(--rule);
}

.benefit:first-child { border-top: none; }

.who {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--navy-faint);
  margin: 0 0 8px;
}

/* ─── Erfahrung / Proof ──────────────────────────────────────────── */
.case-quote { margin: 32px 0; }

.case-quote blockquote {
  font-size: 20px;
  line-height: 1.5;
  margin: 0 0 12px;
}

.case-quote figcaption {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--navy-faint);
  text-transform: uppercase;
}

.placeholder-block {
  background: var(--paper-alt);
  border: 1px dashed var(--rule);
  padding: 28px;
  border-radius: 2px;
  position: relative;
}

.placeholder-block::before {
  content: "PLATZHALTER";
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--navy-faint);
  position: absolute;
  top: 12px;
  right: 16px;
}

.placeholder-block blockquote {
  border-left-color: var(--rule);
  color: var(--navy-faint);
}

/* ─── Final CTA ──────────────────────────────────────────────────── */
.final            { background: var(--navy); color: #fff; }
.final h2         { color: #fff; }
.final .lead      { color: #C9D3E2; }

/* ─── Site Footer ────────────────────────────────────────────────── */
.site-footer { padding: 40px var(--pad-x); }

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--navy-faint);
  border-top: 1px solid var(--rule);
  padding-top: 28px;
}

.footer-inner a {
  color: var(--navy-faint);
  text-decoration: none;
}

.footer-inner a:hover { color: var(--navy); }

/* ─── Modal ──────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 31, 58, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 100;
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
}

.modal-overlay[hidden] { display: none; }

.modal-box {
  background: var(--paper);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 48px;
  border-radius: 2px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--navy-faint);
  padding: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition);
}

.modal-close:hover { color: var(--navy); }
.modal-close:focus-visible {
  outline: 2px solid var(--navy-faint);
  outline-offset: 2px;
  border-radius: 2px;
}

/* ─── Formular ───────────────────────────────────────────────────── */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--navy-faint);
}

.form-group input,
.form-group textarea {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 2px;
  color: var(--navy);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  padding: 10px 12px;
  width: 100%;
  transition: border-color var(--transition);
  -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--navy-faint);
  opacity: 0.6;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-soft);
}

.form-group input:focus-visible,
.form-group textarea:focus-visible {
  outline: 2px solid var(--navy-faint);
  outline-offset: 2px;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #c0392b;
}

.form-group textarea { resize: vertical; }

.form-footer {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.form-note {
  font-size: 13px;
  color: var(--navy-faint);
  margin: 0;
}

.form-message {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 2px;
  font-size: 14px;
  line-height: 1.5;
}

.form-message.success {
  background: #edf7f0;
  border: 1px solid #a8d8b9;
  color: #1a5c35;
}

.form-message.error {
  background: #fdf2f2;
  border: 1px solid #e8b4b4;
  color: #7b2020;
}

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 700px) {
  .three-col { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .modal-box { padding: 32px 24px; }
  .form-row  { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  :root { --pad-x: 20px; }

  body { font-size: 16px; }

  .section  { padding: 64px 0; }
  .hero     { padding: 48px 0 64px; }
  .lead     { font-size: 18px; }

  .two-col,
  .three-col { grid-template-columns: 1fr; gap: 32px; }

  .level { grid-template-columns: 48px 1fr; gap: 14px; }
  .step  { grid-template-columns: 32px 1fr; gap: 14px; }

  blockquote,
  .quote-line { font-size: 20px; }

  .cta-row    { flex-direction: column; align-items: flex-start; }
  .form-footer{ flex-direction: column; align-items: flex-start; gap: 12px; }
}

/* ─── Passwort-Overlay ───────────────────────────────────────────── */
.pw-overlay {
  position: fixed;
  inset: 0;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 200;
}

.pw-overlay.hidden { display: none; }

.pw-box {
  width: 100%;
  max-width: 360px;
}

.pw-error {
  font-size: 13px;
  color: #c0392b;
  margin: 10px 0 0;
}

/* ─── Print ──────────────────────────────────────────────────────── */
@media print {
  .final, .site-footer { break-before: page; }
  .btn, .modal-overlay { display: none; }
}