/* Physiotherapie Susann Richter – One-Page Layout */

@import url("fonts.css");

:root {
  --color-primary: #1e2a4a;
  --color-primary-light: #2a3d66;
  --color-accent: #c9287a;
  --color-accent-light: #e0408f;
  --color-teal: #2dbdb5;
  --color-teal-dark: #1f9e97;
  --color-text: #1a1a2e;
  --color-text-muted: #5a6070;
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6fb;
  --color-bg-dark: #1e2a4a;
  --color-border: #dde2ee;
  --font-sans: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-script: "Great Vibes", "Segoe Script", cursive;
  --max-width: 1120px;
  --spacing: clamp(1rem, 3vw, 1.5rem);
  --header-bg: rgba(30, 42, 74, 0.97);
  --radius: 14px;
  --shadow-sm: 0 2px 16px rgba(30, 42, 74, 0.08);
  --shadow-md: 0 10px 40px rgba(30, 42, 74, 0.12);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7.5rem;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
}

body.is-nav-open {
  overflow: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: var(--spacing);
  z-index: 200;
  padding: 0.6rem 1rem;
  background: var(--color-teal);
  color: #fff;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 600;
}

.skip-link:focus {
  top: 0;
  text-decoration: none;
  color: #fff;
}

/* Header */

.site-header {
  --header-logo-height: 76px;
  --header-padding-y: 1.15rem;
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow-sm);
  transition:
    background var(--transition),
    box-shadow var(--transition);
}

.site-header.is-scrolled {
  --header-logo-height: 50px;
  --header-padding-y: 0.55rem;
  box-shadow: var(--shadow-md);
}

.header-bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--header-padding-y) var(--spacing);
  transition: padding 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-link img {
  height: var(--header-logo-height);
  width: auto;
  transition: height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  border-radius: 8px;
}

.nav-toggle__line {
  display: block;
  width: 24px;
  height: 2px;
  margin: 0 auto;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

.site-header.is-nav-open .nav-toggle__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-nav-open .nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.site-header.is-nav-open .nav-toggle__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: rgba(255, 255, 255, 0.9);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color var(--transition);
}

.main-nav a:hover,
.main-nav a:focus-visible {
  color: var(--color-teal);
  text-decoration: none;
}

@media (max-width: 899px) {
  .main-nav {
    position: fixed;
    inset: 0;
    top: calc(var(--header-logo-height) + (var(--header-padding-y) * 2));
    background: var(--color-bg-dark);
    padding: 1.5rem var(--spacing);
    transform: translateX(100%);
    transition:
      transform var(--transition),
      top 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
  }

  .site-header.is-nav-open .main-nav {
    transform: translateX(0);
  }

  .main-nav ul {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
  }

  .main-nav a {
    display: block;
    padding: 0.85rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
  }

  .main-nav ul {
    display: flex;
    gap: 1.75rem;
    align-items: center;
  }
}

/* Hero */

.hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary) 0%, #2a3d66 50%, #1a2540 100%);
  color: #fff;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 80%, rgba(201, 40, 122, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(45, 189, 181, 0.12) 0%, transparent 50%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(3rem, 8vw, 5.5rem) var(--spacing);
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero__inner {
    grid-template-columns: 1fr 1.1fr;
    gap: 3rem;
  }
}

.hero__logo {
  max-width: 380px;
  margin: 0 auto;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.25));
}

.hero__content h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
}

.hero__subtitle {
  font-family: var(--font-script);
  font-size: clamp(1.65rem, 4vw, 2.55rem);
  font-weight: 400;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--color-teal);
  margin: 0 0 1.25rem;
}

.hero__text {
  margin: 0 0 1.75rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
  max-width: 52ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Buttons */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  border-radius: 999px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.15s ease;
}

.btn:hover,
.btn:focus-visible {
  text-decoration: none;
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-accent);
  color: #fff;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--color-accent-light);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline:hover,
.btn--outline:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: #fff;
}

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

.btn--teal:hover,
.btn--teal:focus-visible {
  background: var(--color-teal-dark);
  color: #fff;
}

/* Sections */

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

.section {
  padding: clamp(3rem, 7vw, 5rem) 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 2.5rem;
}

.section__label {
  display: block;
  font-family: var(--font-script);
  font-size: clamp(1.85rem, 4.5vw, 2.8rem);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--color-teal-dark);
  margin: 0 0 1.4rem;
}

.section__title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--color-primary);
}

.section__intro {
  margin: 0;
  color: var(--color-text-muted);
}

/* Cards & grids */

.grid-2 {
  display: grid;
  gap: 1.5rem;
}

@media (min-width: 700px) {
  .grid-2 {
    grid-template-columns: 1fr 1fr;
  }
}

.grid-3 {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 600px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.card {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card h3 {
  margin: 0 0 0.75rem;
  font-size: 1.1rem;
  color: var(--color-primary);
}

.card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.service-grid {
  display: grid;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 600px) {
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .service-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.service-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem 1.5rem 1.5rem 1.75rem;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-accent), var(--color-teal));
}

.service-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.08rem;
  font-weight: 600;
  color: var(--color-primary);
}

.service-card p {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.service-card__sublist {
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem 1rem;
}

.service-card__sublist li {
  position: relative;
  padding-left: 1rem;
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.service-card__sublist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-teal);
}

.service-card--wide {
  grid-column: 1 / -1;
}

@media (min-width: 900px) {
  .service-card--wide {
    grid-column: span 2;
  }
}

.highlight-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-radius: var(--radius);
  padding: 2rem;
  text-align: center;
}

.highlight-box p {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.7;
}

.highlight-box strong {
  color: var(--color-teal);
}

/* About */

.about-content {
  display: grid;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 768px) {
  .about-content {
    grid-template-columns: 1.2fr 1fr;
  }
}

.about-content p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}

.about-content p:last-child {
  margin-bottom: 0;
}

.feature-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 0.95rem;
}

.feature-list__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), var(--color-teal));
  color: #fff;
  border-radius: 50%;
  font-size: 0.85rem;
  font-weight: 700;
}

/* Contact */

/* Kontakt: zwei Kästen nebeneinander, Karte darunter volle Breite */
.contact-grid,
.contact-layout {
  display: grid;
  gap: 1.5rem;
}

.contact-grid {
  grid-template-columns: 1fr;
  grid-template-areas:
    "contact"
    "hours"
    "map";
}

.contact-grid > div:first-child {
  display: contents;
}

.contact-grid > div:first-child .contact-box:first-child {
  grid-area: contact;
}

.contact-grid > div:first-child .contact-box:last-child {
  grid-area: hours;
  margin-top: 0 !important;
}

.contact-grid > div:last-child {
  grid-area: map;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "contact hours"
      "map map";
  }
}

.contact-row {
  display: grid;
  gap: 1.5rem;
  align-items: stretch;
}

.contact-row .contact-box {
  height: 100%;
}

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

.contact-map {
  width: 100%;
}

.contact-map .map-consent,
.contact-grid .map-consent {
  height: 100%;
}

.contact-map .map-placeholder,
.contact-grid .map-placeholder {
  padding: clamp(2rem, 5vw, 3rem);
}

.contact-map .map-frame,
.contact-grid .map-frame {
  padding-bottom: 42%;
}

.contact-box {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
}

.contact-box h3 {
  margin: 0 0 1.25rem;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.contact-item {
  display: flex;
  gap: 0.85rem;
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.contact-item:last-child {
  margin-bottom: 0;
}

.contact-item__label {
  flex-shrink: 0;
  width: 5.5rem;
  font-weight: 600;
  color: var(--color-primary);
}

.contact-item__hint {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.contact-notice {
  margin: 0 0 1.75rem;
  padding: 1rem 1.25rem;
  background: #fff;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--color-text-muted);
  box-shadow: var(--shadow-sm);
}

.contact-notice strong {
  color: var(--color-primary);
}

.hours-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.hours-table th,
.hours-table td {
  padding: 0.5rem 0;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.hours-table th {
  font-weight: 600;
  color: var(--color-primary);
  width: 40%;
}

.hours-note {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Map consent */

.map-consent {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.map-placeholder {
  padding: 2rem;
  text-align: center;
}

.map-placeholder p {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  max-width: 48ch;
  margin-left: auto;
  margin-right: auto;
}

.map-frame {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
}

.map-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.map-consent.is-loaded .map-placeholder {
  display: none;
}

/* Legal pages */

.page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  padding: clamp(2.5rem, 6vw, 4rem) var(--spacing);
}

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

.page-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
}

.page-header__intro {
  margin: 0;
  color: rgba(255, 255, 255, 0.85);
}

.legal-content {
  padding: clamp(2rem, 5vw, 3.5rem) var(--spacing) clamp(3rem, 6vw, 5rem);
}

.legal-content h2 {
  margin: 2rem 0 0.75rem;
  font-size: 1.25rem;
  color: var(--color-primary);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-primary-light);
}

.legal-content p,
.legal-content li {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

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

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

/* Footer */

.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 2.5rem var(--spacing) 1.5rem;
}

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

.footer-top {
  display: grid;
  gap: 2rem;
  margin-bottom: 2rem;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 1.2fr 2fr;
    align-items: start;
  }

  .footer-accordion__toggle {
    pointer-events: none;
    cursor: default;
    display: flex;
    align-items: flex-start;
    width: 100%;
    padding: 0;
    padding-top: calc(69px / 2 + 0.75rem);
    min-height: 69px;
    margin-bottom: 0.75rem;
    border: none;
    background: transparent;
    justify-content: flex-start;
  }

  .footer-accordion__icon {
    display: none;
  }

  .footer-accordion__panel {
    display: block !important;
    grid-template-rows: 1fr !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .footer-nav__heading {
    margin: 0;
  }
}

@media (max-width: 767px) {
  .footer-nav-grid {
    grid-template-columns: 1fr;
    width: 100%;
  }

  .footer-accordion {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    animation: footer-fade-in 0.6s ease both;
  }

  .footer-accordion:nth-child(1) { animation-delay: 0.08s; }
  .footer-accordion:nth-child(2) { animation-delay: 0.16s; }
  .footer-accordion:nth-child(3) { animation-delay: 0.24s; }

  .footer-accordion__toggle {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin: 0;
    padding: 1rem 0;
    border: none;
    background: transparent;
    cursor: pointer;
    text-align: left;
    transition: color var(--transition);
  }

  .footer-accordion__toggle:hover,
  .footer-accordion__toggle:focus-visible {
    color: var(--color-teal);
  }

  .footer-nav__heading {
    margin: 0;
    font-size: 0.85rem;
    min-height: auto;
    padding-top: 0;
  }

  .footer-accordion__icon {
    flex-shrink: 0;
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1;
    color: rgba(255, 255, 255, 0.75);
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), color var(--transition);
  }

  .footer-accordion.is-open .footer-accordion__icon {
    transform: rotate(45deg);
    color: var(--color-teal);
  }

  .footer-accordion__panel {
    display: grid;
    grid-template-rows: 0fr;
    opacity: 0;
    transform: translateY(-8px);
    transition:
      grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1),
      opacity 0.35s ease,
      transform 0.35s ease;
  }

  .footer-accordion.is-open .footer-accordion__panel {
    grid-template-rows: 1fr;
    opacity: 1;
    transform: translateY(0);
  }

  .footer-accordion__panel > ul {
    overflow: hidden;
    padding-bottom: 0.75rem;
  }

  .footer-nav a {
    transition: color var(--transition), transform var(--transition);
  }

  .footer-nav a:hover,
  .footer-nav a:focus-visible {
    transform: translateX(4px);
  }
}

@keyframes footer-fade-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.footer-brand__logo-link {
  display: inline-block;
  margin-bottom: 0.85rem;
  line-height: 0;
}

.footer-brand__logo-link:hover,
.footer-brand__logo-link:focus-visible {
  opacity: 0.9;
  text-decoration: none;
}

.footer-brand__logo {
  width: min(240px, 100%);
  height: auto;
}

.footer-brand__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.7);
}

@media (max-width: 767px) {
  .footer-brand {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    animation: footer-fade-in 0.6s ease both;
  }

  .footer-brand__logo-link {
    display: block;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-brand__logo {
    margin-inline: auto;
  }
}

.footer-nav-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 600px) {
  .footer-nav-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .footer-nav-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

.footer-nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  text-decoration: none;
}

.footer-nav a:hover,
.footer-nav a:focus-visible {
  color: var(--color-teal);
  text-decoration: none;
}

.footer-nav__heading {
  margin: 0 0 0.75rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.footer-accordion__toggle {
  font-family: inherit;
  color: inherit;
}

.footer-bottom {
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* To top */

.to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.to-top:hover,
.to-top:focus-visible {
  background: var(--color-accent-light);
}

/* Reveal animation */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .site-header,
  .header-bar,
  .logo-link img,
  .main-nav,
  .footer-accordion__panel,
  .footer-accordion__icon {
    transition: none;
  }

  .footer-brand,
  .footer-accordion {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}