/* ─── Config ─────────────────────────────────────────────────────────────── */
:root {
  --color-bg:        #F6F7F6;
  --color-text:      #5A5A58;
  --color-text-muted:#8A8A88;
  --color-border:    #D8D9D7;
  --color-accent:    #5A5A58;

  --font-base:       'Inter', system-ui, sans-serif;

  /* Spacing scale – mobile base values */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;

  --max-width: 680px;
  --radius:    4px;
}

/* Scale spacing up from tablet onwards */
@media (min-width: 640px) {
  :root {
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;
  }
}

/* ─── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img { display: block; max-width: 100%; }
a   { color: inherit; text-decoration: underline; text-underline-offset: 3px; }
a:hover { opacity: 0.65; }

/* ─── Layout helpers ─────────────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  /* Tighter on mobile, comfortable on wider screens */
  padding-inline: var(--space-sm);
}

@media (min-width: 640px) {
  .container {
    padding-inline: var(--space-md);
  }
}

/* ─── Header ─────────────────────────────────────────────────────────────── */
.site-header {
  background: white;
  padding-block: var(--space-sm);
}

.site-header .container {
  text-align: left;
}

.site-header .logo {
  /* Mobile: readable at 140px tall (≈ 380px wide on the 1151:423 ratio) */
  height: auto;
}

@media (min-width: 480px) {
  .site-header .logo {
    height: 70px;
    width: auto;
  }
}

@media (min-width: 640px) {
  .site-header .logo {
    height: 100px;
  }
}

/* ─── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  padding: var(--space-xl) var(--space-md) 0 var(--space-md);
}

.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

@media (min-width: 640px) {
  .hero__eyebrow {
    font-size: 1.2rem;
  }
}

.hero__headline {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 300;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: var(--space-md);
}

.hero__subline {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text-muted);
  max-width: 520px;
}

/* ─── Lead Capture Form ──────────────────────────────────────────────────── */
.lead-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 420px;
}

/* Mobile: stack input and button vertically */
.lead-form__row {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

/* Tablet+: place them side-by-side */
@media (min-width: 480px) {
  .lead-form__row {
    flex-direction: row;
  }
}

.lead-form__input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: 0.9375rem;
  outline: none;
  transition: border-color 0.2s;
}

.lead-form__input::placeholder { color: var(--color-text-muted); }

.lead-form__input:focus {
  border-color: var(--color-accent);
}

.lead-form__btn {
  padding: 0.75rem 1.25rem;
  background: var(--color-accent);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius);
  font-family: var(--font-base);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  cursor: pointer;
  /* Full width on mobile, auto on wider screens */
  width: 100%;
  white-space: nowrap;
  transition: opacity 0.2s;
}

@media (min-width: 480px) {
  .lead-form__btn {
    width: auto;
  }
}

.lead-form__btn:hover { opacity: 0.8; }

/* GDPR consent */
.lead-form__consent {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
}

.lead-form__consent input[type="checkbox"] {
  flex-shrink: 0;
  margin-top: 3px;
  accent-color: var(--color-accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

.lead-form__consent-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

.lead-form__consent-label a {
  color: var(--color-text-muted);
}

/* Success state */
.lead-form__success {
  display: none;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  padding-block: var(--space-xs);
}

.lead-form.is-submitted .lead-form__row,
.lead-form.is-submitted .lead-form__consent { display: none; }

.lead-form.is-submitted .lead-form__success { display: block; }

/* ─── Divider ────────────────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin-block: var(--space-lg);
}

/* ─── Pillars Section ────────────────────────────────────────────────────── */
.pillars {
  padding-bottom: var(--space-xl);
}

.pillars__label {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

@media (min-width: 640px) {
  .pillars__label {
    font-size: 1.2rem;
  }
}

.pillars__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pillars__item {
  display: flex;
  align-items: baseline;
  gap: 0.875rem;
  font-size: 1.0625rem;
  font-weight: 300;
  color: var(--color-text);
}

.pillars__item::before {
  content: '';
  display: inline-block;
  flex-shrink: 0;
  width: 18px;
  height: 1px;
  background: var(--color-border);
  position: relative;
  top: -4px;
}

/* ─── Footer ─────────────────────────────────────────────────────────────── */
.site-footer {
  background: white;
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-md);
}

/* Mobile: stack company name and nav links vertically */
.site-footer__inner {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-sm);
}

/* Tablet+: place them on one row */
@media (min-width: 640px) {
  .site-footer__inner {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-end;
  }
}

.site-footer__company {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.site-footer__nav {
  display: flex;
  gap: var(--space-md);
  list-style: none;
}

.site-footer__nav a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  text-decoration: none;
}

.site-footer__nav a:hover { text-decoration: underline; text-underline-offset: 3px; }

/* ─── Inner pages (Impressum / Datenschutz) ──────────────────────────────── */
.page-content {
  padding-block: var(--space-lg) var(--space-xl);
  flex: 1;
}

.page-content h1 {
  font-size: 1.75rem;
  font-weight: 300;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-lg);
}

.page-content h2 {
  font-size: 1rem;
  font-weight: 500;
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.page-content p,
.page-content address {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  font-style: normal;
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.page-content a { color: var(--color-text-muted); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  text-decoration: none;
  margin-bottom: var(--space-lg);
}

.back-link:hover { opacity: 0.65; }

/* ─── Accessibility ──────────────────────────────────────────────────────── */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/*
 * Responsive behaviour is co-located with each component above
 * using mobile-first min-width breakpoints:
 *   480px – form row switches to inline, button width becomes auto
 *   640px – spacing scale increases, container padding widens,
 *            footer switches to horizontal layout
 */