:root {
  color-scheme: light;
  --bg: #FAF8F5;
  --surface: #FFFFFF;
  --ink: #17181A;
  --muted: #64666B;
  --line: #E5DED5;
  --accent: #3B5B7A;
  --accent-hover: #2B455E;
  --accent-subtle: rgba(59, 91, 122, 0.08);
  --sand: #CBB7A1;
  --pill-bg: rgba(59, 91, 122, 0.08);
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(229, 222, 213, 0.9);
  --card-hover-border: rgba(59, 91, 122, 0.38);
  --card-hover-bg: #FFFFFF;
  --shadow-sm: 0 1px 2px rgba(23, 24, 26, 0.04);
  --shadow-card: 0 4px 18px -2px rgba(28, 25, 23, 0.04);
  --shadow-card-hover: 0 10px 26px -4px rgba(28, 25, 23, 0.08);
  --theme-transition: background-color 0.22s ease, color 0.22s ease, border-color 0.22s ease, box-shadow 0.22s ease;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #111214;
    --surface: #191A1E;
    --ink: #EDECE8;
    --muted: #90939A;
    --line: #262930;
    --accent: #6B94BA;
    --accent-hover: #8EB3D6;
    --accent-subtle: rgba(107, 148, 186, 0.12);
    --sand: #CBB7A1;
    --pill-bg: rgba(255, 255, 255, 0.08);
    --card-bg: rgba(25, 26, 30, 0.7);
    --card-border: rgba(38, 41, 48, 0.85);
    --card-hover-border: rgba(107, 148, 186, 0.4);
    --card-hover-bg: #191A1E;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-card: 0 4px 18px -2px rgba(0, 0, 0, 0.3);
    --shadow-card-hover: 0 10px 26px -4px rgba(0, 0, 0, 0.45);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #111214;
  --surface: #191A1E;
  --ink: #EDECE8;
  --muted: #90939A;
  --line: #262930;
  --accent: #6B94BA;
  --accent-hover: #8EB3D6;
  --accent-subtle: rgba(107, 148, 186, 0.12);
  --sand: #CBB7A1;
  --pill-bg: rgba(255, 255, 255, 0.08);
  --card-bg: rgba(25, 26, 30, 0.7);
  --card-border: rgba(38, 41, 48, 0.85);
  --card-hover-border: rgba(107, 148, 186, 0.4);
  --card-hover-bg: #191A1E;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-card: 0 4px 18px -2px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 10px 26px -4px rgba(0, 0, 0, 0.45);
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #FAF8F5;
  --surface: #FFFFFF;
  --ink: #17181A;
  --muted: #64666B;
  --line: #E5DED5;
  --accent: #3B5B7A;
  --accent-hover: #2B455E;
  --accent-subtle: rgba(59, 91, 122, 0.08);
  --sand: #CBB7A1;
  --pill-bg: rgba(59, 91, 122, 0.08);
  --card-bg: rgba(255, 255, 255, 0.75);
  --card-border: rgba(229, 222, 213, 0.9);
  --card-hover-border: rgba(59, 91, 122, 0.38);
  --card-hover-bg: #FFFFFF;
  --shadow-sm: 0 1px 2px rgba(23, 24, 26, 0.04);
  --shadow-card: 0 4px 18px -2px rgba(28, 25, 23, 0.04);
  --shadow-card-hover: 0 10px 26px -4px rgba(28, 25, 23, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  background-color: var(--bg);
  transition: var(--theme-transition);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background-color: var(--bg);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: var(--theme-transition);
  display: flex;
  flex-direction: column;
}

::selection {
  background-color: var(--accent-subtle);
  color: var(--ink);
}

a {
  color: inherit;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: color 0.18s ease;
}

a:hover {
  color: var(--accent);
}

/* Site Header */
.site-header {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: clamp(16px, 2vh, 24px) 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.landing-header {
  justify-content: flex-end;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 17px;
  font-weight: 650;
  letter-spacing: -0.025em;
  text-decoration: none;
  color: var(--ink);
  transition: opacity 0.18s ease;
}

.wordmark:hover {
  color: var(--ink);
  opacity: 0.85;
}

.wordmark-logo {
  display: block;
  height: 28px;
  width: auto;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Language Switcher Segmented Control */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  height: 36px;
  box-sizing: border-box;
  background-color: transparent;
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 3px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1;
  user-select: none;
}

.lang-opt {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 0 8px;
  border-radius: 6px;
  text-decoration: none;
  color: var(--muted);
  transition: background-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

a.lang-opt:hover {
  color: var(--ink);
  background-color: var(--pill-bg);
}

.lang-opt.is-active {
  color: var(--ink);
  background-color: var(--card-bg);
  box-shadow: 0 1px 2px rgba(27, 26, 23, 0.06);
  cursor: default;
}

.lang-divider {
  width: 1px;
  height: 14px;
  background-color: var(--line);
  margin: 0 1px;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  width: 36px;
  height: 36px;
  border-radius: 9px;
  padding: 0;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
}

.theme-toggle-btn:hover {
  color: var(--ink);
  border-color: var(--accent);
  background-color: var(--card-bg);
  transform: scale(1.04);
}

.theme-toggle-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.theme-toggle-btn svg {
  width: 18px;
  height: 18px;
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Theme Icon Visibility */
.icon-moon { display: block; }
.icon-sun { display: none; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-moon { display: none; }
  :root:not([data-theme="light"]) .icon-sun { display: block; }
}

:root[data-theme="dark"] .icon-moon { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }

:root[data-theme="light"] .icon-moon { display: block; }
:root[data-theme="light"] .icon-sun { display: none; }

/* Landing Layout */
.landing {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 2.8vh, 38px);
  padding: clamp(12px, 2vh, 28px) 24px clamp(14px, 2.4vh, 32px);
  width: 100%;
  max-width: 1040px;
  margin: 0 auto;
}

.hero {
  width: min(840px, 100%);
  text-align: center;
}

.hero-logo-wrap {
  margin-bottom: clamp(10px, 1.5vw, 20px);
  display: flex;
  justify-content: center;
}

.hero-brand {
  display: inline-flex;
  align-items: center;
  gap: clamp(12px, calc(9.5px + 0.65vw), 22px);
  text-decoration: none;
  color: var(--ink);
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.hero-brand:hover {
  opacity: 0.85;
  transform: translateY(-2px);
}

.hero-logo-mark {
  display: block;
  width: clamp(36px, calc(28px + 2.2vw), 72px);
  height: auto;
  aspect-ratio: 242 / 232;
  flex-shrink: 0;
}

.hero-brand-name {
  font-size: clamp(21px, calc(16.5px + 1.45vw), 44px);
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--ink);
}

.eyebrow,
.legal-note {
  color: var(--accent);
  font-size: clamp(11.5px, calc(10.5px + 0.25vw), 13px);
  font-weight: 650;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 clamp(8px, 1vw, 14px);
  display: inline-block;
}

h1 {
  margin: clamp(6px, 1vw, 12px) 0 clamp(8px, 1.2vw, 14px);
  font-size: clamp(26px, calc(22px + 1.3vw), 46px);
  font-weight: 530;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--ink);
}

.intro {
  width: min(680px, 100%);
  margin: 0 auto;
  color: var(--muted);
  font-size: clamp(15px, calc(14px + 0.3vw), 17.5px);
  line-height: 1.55;
  font-weight: 400;
}

/* Principles Cards */
.principles {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(16px, 1.8vw, 24px);
  text-align: left;
}

.principle-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: clamp(14px, 1.6vh, 18px) clamp(16px, 1.6vw, 20px);
  box-shadow: var(--shadow-card);
  transition: transform 0.22s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.22s ease, border-color 0.22s ease, background-color 0.22s ease;
  position: relative;
}

.principle-card:hover {
  transform: translateY(-3px);
  border-color: var(--card-hover-border);
  background-color: var(--card-hover-bg);
  box-shadow: var(--shadow-card-hover);
}

.principle-card h2 {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.principle-card p {
  margin: 0;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.45;
}

.principle-card em {
  font-style: italic;
  color: var(--ink);
}

/* Site Footer */
.site-footer {
  width: 100%;
  max-width: 1200px;
  margin: auto auto 0;
  padding: clamp(14px, 1.8vh, 22px) 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  transition: var(--theme-transition);
}

.site-footer nav {
  display: flex;
  gap: 24px;
}

.site-footer a {
  text-decoration: none;
  color: var(--muted);
  transition: color 0.18s ease;
}

.site-footer a:hover,
.site-footer a[aria-current="page"] {
  color: var(--accent);
}

/* Legal Pages */
.legal-page {
  width: min(720px, calc(100% - 48px));
  min-height: calc(100vh - 170px);
  margin: 0 auto;
  padding: 56px 0 100px;
  flex: 1;
}

.legal-page .back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 13.5px;
  text-decoration: none;
  font-weight: 550;
  margin-bottom: 24px;
  transition: color 0.18s ease, transform 0.18s ease;
}

.legal-page .back:hover {
  color: var(--accent);
  transform: translateX(-3px);
}

.legal-page h1 {
  margin: 16px 0 16px;
  font-size: clamp(32px, calc(26px + 1.4vw), 48px);
  letter-spacing: -0.035em;
}

.legal-page .legal-note {
  margin-bottom: clamp(28px, 3.5vw, 44px);
}

.legal-page section {
  padding: 28px 0;
  border-top: 1px solid var(--line);
  transition: border-color 0.22s ease;
}

.legal-page h2 {
  margin: 0 0 12px;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.legal-page p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.legal-page p:last-child {
  margin-bottom: 0;
}

/* Anti-Scrape Imprint Graphics */
.anti-scrape-img {
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  pointer-events: none;
}

.anti-scrape-address {
  width: 127.5px;
  height: 67px;
  max-width: 100%;
  margin-top: 4px;
}

.anti-scrape-email {
  width: 174.5px;
  height: 16px;
  max-width: 100%;
  margin-top: 4px;
}

/* Anti-Scrape Light / Dark Switching */
.anti-scrape-dark { display: none; }
.anti-scrape-light { display: block; }

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .anti-scrape-light { display: none; }
  :root:not([data-theme="light"]) .anti-scrape-dark { display: block; }
}

:root[data-theme="dark"] .anti-scrape-light { display: none; }
:root[data-theme="dark"] .anti-scrape-dark { display: block; }

:root[data-theme="light"] .anti-scrape-dark { display: none; }
:root[data-theme="light"] .anti-scrape-light { display: block; }

/* Language Suggestion Toast (for German locale visitors on English page) */
.lang-toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 12px;
  background-color: var(--card-bg);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px -4px rgba(27, 26, 23, 0.12), 0 4px 10px -2px rgba(27, 26, 23, 0.05);
  border-radius: 9999px;
  padding: 8px 12px 8px 18px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: -0.01em;
  opacity: 0;
  transform: translateY(10px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.lang-toast.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.lang-toast-link {
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  transition: color 0.18s ease;
}

.lang-toast-link:hover {
  color: var(--accent);
}

.lang-toast-link span.arrow {
  display: inline-block;
  transition: transform 0.18s ease;
}

.lang-toast-link:hover span.arrow {
  transform: translateX(3px);
}

.lang-toast-close {
  background: transparent;
  border: none;
  padding: 6px;
  border-radius: 50%;
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.lang-toast-close:hover {
  color: var(--ink);
  background-color: var(--pill-bg);
}

.lang-toast-close svg {
  width: 14px;
  height: 14px;
  display: block;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
  .lang-toast {
    left: 16px;
    right: 16px;
    bottom: 16px;
    justify-content: space-between;
    border-radius: 14px;
    padding: 10px 14px 10px 16px;
  }
  .site-header {
    padding: 20px 20px;
  }

  .landing {
    padding: 32px 20px 48px;
    gap: 36px;
  }

  .principles {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .principle-card {
    padding: 18px 20px;
  }

  .site-footer {
    padding: 24px 20px;
    gap: 16px;
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer nav {
    gap: 18px;
  }

  .legal-page {
    width: calc(100% - 40px);
    padding: 40px 0 72px;
  }
}

/* Subtle Entrance Animation */
@media (prefers-reduced-motion: no-preference) {
  .hero, .principles, .legal-page {
    animation: fadeInRise 550ms cubic-bezier(0.16, 1, 0.3, 1) both;
  }

  .principles {
    animation-delay: 90ms;
  }

  @keyframes fadeInRise {
    from {
      opacity: 0;
      transform: translateY(12px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}