/* ================================
   0. Self-hosted Fonts (DSGVO)
   ================================ */
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url('../fonts/playfair-display-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 400 900;
  font-display: swap;
  src: url('../fonts/playfair-display-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url('../fonts/source-sans-3-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Source Sans 3';
  font-style: normal;
  font-weight: 200 900;
  font-display: swap;
  src: url('../fonts/source-sans-3-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ================================
   1. Design Tokens
   ================================ */
:root {
  --color-primary: #7cc3be;
  --color-primary-dark: #56a8a2;
  --color-primary-fg: #fff;
  --color-secondary-dark: #1a3a52;
  --color-background: #fbfaf8;
  --color-foreground: #1a3a52;
  --color-accent: #e4f3f2;
  --color-accent-fg: #3e8a85;
  --color-secondary: #f2eee7;
  --color-muted: #667881;
  --color-border: #e6e1da;
  --color-warm: hsl(30 40% 96%);
  --color-card: #fff;

  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Source Sans 3', 'Segoe UI', system-ui, sans-serif;

  --radius: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);

  --container-max: 72rem;
  --header-height: 110px;
}

/* ================================
   2. Reset & Base
   ================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-foreground);
  background: var(--color-background);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-dark); }

ul { list-style: none; }

/* ================================
   3. Typography
   ================================ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-foreground);
  line-height: 1.2;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.5rem); }
h3 { font-size: 1.2rem; font-weight: 600; }
h4 { font-size: 1rem; font-weight: 600; }

.section-title {
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  text-align: center;
  color: var(--color-muted);
  max-width: 42rem;
  margin: 0 auto 3rem;
}

/* ================================
   4. Layout
   ================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
}

.section-padding {
  padding: 4rem 0;
}

@media (min-width: 768px) {
  .section-padding { padding: 5rem 0; }
}

/* ================================
   5. Icons
   ================================ */
.icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
}

.icon-sm {
  width: 16px;
  height: 16px;
}

/* ================================
   6. Buttons
   ================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.7rem 2rem;
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, box-shadow 0.2s;
  white-space: nowrap;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-fg);
  border-color: var(--color-primary);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-primary-fg);
}

.btn-outline {
  background: var(--color-card);
  color: var(--color-foreground);
  border-color: var(--color-border);
}
.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-foreground);
}

.btn-sm {
  font-size: 0.875rem;
  padding: 0.5rem 1.25rem;
}

.btn-block {
  width: 100%;
}

/* ================================
   7. Cards
   ================================ */
.card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: box-shadow 0.2s;
}
.card:hover {
  box-shadow: var(--shadow-md);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--color-muted); font-size: 0.9rem; line-height: 1.5; }

/* ================================
   8. Header
   ================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.top-bar {
  background: var(--color-primary);
  color: var(--color-primary-fg);
  font-size: 0.85rem;
}

.top-bar .container {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.75rem;
  padding-top: 0.4rem;
  padding-bottom: 0.4rem;
}

.top-bar-link {
  color: var(--color-primary-fg);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.top-bar-link:hover { color: var(--color-primary-fg); text-decoration: underline; }

.top-bar-divider { opacity: 0.6; }

.top-bar-email { display: none; }
@media (min-width: 640px) {
  .top-bar-email { display: inline-flex; }
}

.nav-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-foreground);
}
.logo:hover { color: var(--color-foreground); }

.logo-circle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-primary-fg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
}

.logo-img {
  height: 64px;
  width: auto;
  display: block;
}

.logo-img-footer {
  height: 64px;
  width: auto;
  display: block;
}

.logo-text { display: flex; flex-direction: column; }
.logo-name { font-family: var(--font-heading); font-weight: 700; font-size: 1.25rem; line-height: 1.2; }
.logo-sub { font-size: 0.7rem; color: var(--color-muted); margin-top: -2px; }

/* Desktop nav */
.main-nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.nav-link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-foreground);
  transition: color 0.2s;
}
.nav-link:hover, .nav-link.active {
  color: var(--color-primary);
}

.nav-cta { margin-left: 0.5rem; }

/* Hamburger */
.hamburger {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--color-foreground);
  display: flex;
  align-items: center;
}

.hamburger-close { display: none; }

/* Mobile nav open state */
.nav-open .hamburger-open { display: none; }
.nav-open .hamburger-close { display: block; }

.nav-open .main-nav {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--color-card);
  padding: 1.5rem;
  gap: 1rem;
  z-index: 99;
  box-shadow: var(--shadow-lg);
  border-top: 1px solid var(--color-border);
}

.nav-open .main-nav .nav-link {
  font-size: 1.1rem;
}

.nav-open .main-nav .nav-cta {
  margin-left: 0;
  margin-top: 0.5rem;
}

@media (min-width: 1024px) {
  .main-nav { display: flex !important; }
  .hamburger { display: none; }
  .main-nav .nav-link { font-size: 0.9rem; }
}

/* ================================
   9. Hero
   ================================ */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex;
  align-items: center;
  padding: 5rem 0;
  color: #fff;
  background-image:
    linear-gradient(135deg, rgba(26,58,82,0.82) 0%, rgba(26,58,82,0.55) 100%),
    url('../images/hero-bg.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.hero-content {
  max-width: 40rem;
  text-align: left;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2.2vw, 1.35rem);
  color: rgba(255,255,255,0.9);
  font-weight: 400;
  margin-top: 1rem;
  max-width: 36rem;
  line-height: 1.5;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: flex-start;
  margin-top: 2rem;
}

.hero .btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.7);
}
.hero .btn-outline:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border-color: #fff;
}

@media (min-width: 640px) {
  .hero-actions { flex-direction: row; }
}

/* ================================
   10. Approach (So arbeiten wir / Was uns wichtig ist)
   ================================ */
.approach-grid {
  display: grid;
  gap: 2.5rem;
  margin-top: 1rem;
}

.approach-col h2 {
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  margin-bottom: 1rem;
  color: var(--color-secondary-dark);
}

.approach-col p {
  color: var(--color-muted);
  line-height: 1.75;
  font-size: 1.02rem;
}

@media (min-width: 768px) {
  .approach-grid { grid-template-columns: 1fr 1fr; gap: 3rem; }
}

/* ================================
   11. Services
   ================================ */
.services {
  background: rgba(227,241,238,0.4);
}

.services-grid {
  display: grid;
  gap: 1.5rem;
}

.service-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow 0.25s, transform 0.25s;
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.service-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-accent);
}
.service-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.service-body {
  padding: 1.4rem 1.4rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  flex: 1;
}

.service-body h3 {
  font-size: 1.2rem;
  color: var(--color-secondary-dark);
}

.service-body p {
  color: var(--color-muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.services-cta {
  text-align: center;
  margin-top: 2.5rem;
}
.services-cta p {
  color: var(--color-muted);
  max-width: 38rem;
  margin: 0 auto 1.25rem;
  font-size: 1rem;
}

@media (min-width: 640px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  /* Center last orphan card in 2-col grid */
  .services-grid > .service-card:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    justify-self: center;
    width: calc(50% - 0.75rem);
  }
}
@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  /* Reset 2-col rule */
  .services-grid > .service-card:last-child:nth-child(odd) {
    grid-column: auto;
    justify-self: stretch;
    width: auto;
  }
  /* Center last orphan card in 3-col grid (when it starts a new row alone) */
  .services-grid > .service-card:last-child:nth-child(3n+1) {
    grid-column: 2;
  }
}

/* ================================
   12. Benefits
   ================================ */
.benefits-grid {
  display: grid;
  gap: 1.5rem;
}

.benefit-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.benefit-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: 50%;
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
}

.benefit-item h3 { margin-bottom: 0.25rem; }
.benefit-item p { color: var(--color-muted); font-size: 0.9rem; }

@media (min-width: 640px) {
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .benefits-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ================================
   13. Coverage
   ================================ */
.coverage {
  background: var(--color-warm);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-foreground);
}

.chip .icon { color: var(--color-primary); }

.coverage-note {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.9rem;
}

/* ================================
   14. Partners
   ================================ */
.partners-grid {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(2, 1fr);
}

.partner-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow 0.2s;
}
.partner-card:hover { box-shadow: var(--shadow-md); }

.partner-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0 auto 0.75rem;
}

.partner-card h3 { font-size: 1rem; margin-bottom: 0.25rem; }
.partner-card p { color: var(--color-muted); font-size: 0.85rem; }

@media (min-width: 768px) {
  .partners-grid { grid-template-columns: repeat(4, 1fr); }
}

/* ================================
   15. Contact
   ================================ */
.contact {
  background: rgba(227,241,238,0.4);
}

.contact-grid {
  display: grid;
  gap: 2.5rem;
}

.contact-info h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}

.contact-info > p {
  color: var(--color-muted);
  margin-bottom: 1.5rem;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.contact-details,
.contact-hours {
  margin-bottom: 1.5rem;
}

.contact-details p,
.contact-hours p {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
}

.contact-details .icon,
.contact-hours .icon {
  color: var(--color-primary);
}

.contact-company {
  font-size: 1rem !important;
  color: var(--color-foreground) !important;
  margin-bottom: 0.75rem !important;
}

/* Contact form */
.contact-form-wrap {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-form-wrap h3 {
  font-size: 1.25rem;
  margin-bottom: 1.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--color-foreground);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: calc(var(--radius) - 4px);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-foreground);
  background: var(--color-background);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124,195,190,0.25);
}

.form-group textarea { resize: vertical; min-height: 100px; }

.form-group.has-error input,
.form-group.has-error textarea {
  border-color: #d44;
}

.form-error {
  display: none;
  font-size: 0.8rem;
  color: #d44;
  margin-top: 0.25rem;
}

.form-group.has-error .form-error {
  display: block;
}

/* Checkbox */
.form-checkbox {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.5rem;
}

.form-checkbox input[type="checkbox"] {
  width: auto;
  margin-top: 0.25rem;
  accent-color: var(--color-primary);
}

.form-checkbox label {
  flex: 1;
  font-weight: 400;
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-bottom: 0;
}

.form-checkbox label a {
  text-decoration: underline;
}

.form-checkbox .form-error {
  width: 100%;
}

/* Honeypot */
.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: calc(var(--radius) - 4px);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: #e6f9f0;
  color: #1a7a4c;
  border: 1px solid #b8e8d0;
}

.form-status.error {
  display: block;
  background: #fde8e8;
  color: #c33;
  border: 1px solid #f5c6c6;
}

@media (min-width: 1024px) {
  .contact-grid { grid-template-columns: 1fr 1fr; }
}

/* ================================
   16. Jobs
   ================================ */
.jobs {
  background: var(--color-warm);
}

.jobs-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  max-width: 52rem;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

.jobs-card h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.1rem);
  margin-bottom: 0.75rem;
  color: var(--color-secondary-dark);
}

.jobs-card > p {
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.jobs-card h3 {
  font-size: 1.05rem;
  color: var(--color-secondary-dark);
  margin-bottom: 0.5rem;
}

.jobs-card .jobs-lists {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.75rem;
}

.jobs-card ul {
  list-style: disc;
  padding-left: 1.25rem;
}

.jobs-card ul li {
  color: var(--color-muted);
  font-size: 0.95rem;
  margin-bottom: 0.35rem;
  line-height: 1.5;
}

.jobs-card .jobs-closing {
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .jobs-card .jobs-lists { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

/* ================================
   17. Footer
   ================================ */
.site-footer {
  background: var(--color-foreground);
  color: rgba(255,255,255,0.7);
  padding-top: 3rem;
}

.footer-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr 1fr;
  padding-bottom: 2rem;
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  background: var(--color-background);
  border-radius: var(--radius);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.75rem;
}

.logo-circle-footer {
  width: 36px;
  height: 36px;
  font-size: 1rem;
}

.logo-name-footer {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
}

.footer-col p { font-size: 0.85rem; line-height: 1.6; }

.footer-col h4 {
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.footer-col ul li { margin-bottom: 0.4rem; }

.footer-col ul li a,
.footer-col ul li {
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  transition: color 0.2s;
}

.footer-col ul li a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1rem 0;
}

.footer-bottom p {
  font-size: 0.8rem;
  text-align: center;
  color: rgba(255,255,255,0.5);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

/* ================================
   Section Break (full-width image divider)
   ================================ */
.section-break {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1rem;
  line-height: 0;
}

.section-break img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: var(--radius-lg);
}

@media (min-width: 768px) {
  .section-break img { height: 500px; }
}

/* ================================
   18. Back-to-top button
   ================================ */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--color-primary);
  color: var(--color-primary-fg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease, background 0.2s ease;
  z-index: 90;
}

.back-to-top:hover,
.back-to-top:focus-visible {
  background: var(--color-primary-dark);
}

.back-to-top:focus-visible {
  outline: 2px solid var(--color-primary-dark);
  outline-offset: 3px;
}

.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top .icon {
  width: 22px;
  height: 22px;
}

@media (prefers-reduced-motion: reduce) {
  .back-to-top {
    transition: opacity 0.15s linear;
    transform: none;
  }
}

/* ================================
   19. Legal pages
   ================================ */
.legal-page {
  background: var(--color-background);
}

.legal-content {
  max-width: 48rem;
}

.legal-content h1 {
  font-size: clamp(2rem, 4.5vw, 3rem);
  margin-bottom: 0.5rem;
  color: var(--color-secondary-dark);
}

.legal-content h2 {
  font-size: 1.4rem;
  margin-top: 2.25rem;
  margin-bottom: 0.6rem;
  color: var(--color-secondary-dark);
}

.legal-content h3 {
  font-size: 1.1rem;
  margin-top: 1.5rem;
  margin-bottom: 0.4rem;
}

.legal-content p,
.legal-content address,
.legal-content ul {
  margin-bottom: 1rem;
  color: var(--color-foreground);
  font-size: 1rem;
  line-height: 1.65;
}

.legal-content address {
  font-style: normal;
}

.legal-content ul {
  padding-left: 1.25rem;
  list-style: disc;
}

.legal-content ul li {
  margin-bottom: 0.35rem;
}

.legal-content .legal-meta {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.legal-content a {
  color: var(--color-primary-dark);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.legal-content a:hover {
  color: var(--color-secondary-dark);
}

/* ================================
   20. 404 error page
   ================================ */
.error-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 260px);
  padding: 4rem 0;
  text-align: center;
}

.error-content {
  max-width: 36rem;
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 18vw, 9rem);
  font-weight: 700;
  line-height: 1;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.error-content h1 {
  font-size: clamp(1.6rem, 3.5vw, 2.25rem);
  color: var(--color-secondary-dark);
  margin-bottom: 1rem;
}

.error-content p {
  color: var(--color-muted);
  margin-bottom: 0.75rem;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
}