/* Dr. med. Martina Wittels — static site */
:root {
  --color-primary: #452458;
  --color-accent: #249ebd;
  --color-bg: #d3dce6;
  --color-white: #ffffff;
  --color-text: #333333;
  --color-text-muted: #555555;
  --font-sans: "Montserrat", system-ui, -apple-system, sans-serif;
  --font-size-body: 15px;
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --radius: 4px;
  --shadow: 0 8px 32px rgba(69, 36, 88, 0.08);
  --header-height: 72px;
  --max-width: 1140px;
}

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

html {
  scroll-behavior: smooth;
}

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

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

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

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 var(--space-sm);
  font-weight: 600;
  letter-spacing: 0;
  line-height: 1.25;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
}

h2 {
  font-size: clamp(1.35rem, 3vw, 1.75rem);
}

h3,
h4 {
  font-size: 1.05rem;
}

p {
  margin: 0 0 var(--space-sm);
  font-size: var(--font-size-body);
}

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

ul {
  margin: 0 0 var(--space-sm);
  padding-left: 1.25rem;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-sm);
  z-index: 10000;
  padding: var(--space-xs) var(--space-sm);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius);
}

.skip-link:focus {
  top: var(--space-sm);
}

/* Site header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: var(--color-white);
  box-shadow: 0 1px 0 rgba(69, 36, 88, 0.08);
  transition: box-shadow 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: var(--shadow);
}

.site-header__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-logo img {
  height: 48px;
  width: auto;
}

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

.nav-toggle span {
  display: block;
  height: 3px;
  width: 24px;
  background: var(--color-primary);
  border-radius: 1px;
  transition: transform 0.2s, opacity 0.2s;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs) var(--space-md);
}

.site-nav a {
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.875rem;
  text-transform: capitalize;
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration: none;
  border-bottom-color: var(--color-accent);
}

@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-white);
    padding: var(--space-md);
    box-shadow: var(--shadow);
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.25s ease, opacity 0.25s ease, visibility 0.25s;
  }

  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .site-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .site-nav li {
    border-bottom: 1px solid var(--color-bg);
  }

  .site-nav a {
    display: block;
    padding: var(--space-sm) 0;
  }
}

/* Main */
main {
  min-height: 50vh;
}

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

.section {
  padding: var(--space-xl) 0;
}

.section--tight {
  padding: var(--space-lg) 0;
}

/* Two-column layout */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.split--reverse .split__media {
  order: -1;
}

@media (max-width: 768px) {
  .split {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .split--reverse .split__media {
    order: 0;
  }
}

/* Content card (white panel) */
.card {
  background: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card--dark {
  background: var(--color-primary);
  color: var(--color-white);
  border-top: 4px solid var(--color-accent);
  box-shadow: none;
}

.card--dark h1,
.card--dark h2,
.card--dark h3,
.card--dark h4 {
  color: var(--color-white);
}

.card--dark a {
  color: #a8e4f0;
}

.card--dark a:hover {
  color: var(--color-white);
}

/* Headlines with accent italic */
.headline-accent {
  font-style: italic;
  font-weight: 300;
  color: var(--color-accent);
}

.headline-bold {
  color: var(--color-primary);
  font-weight: 700;
  font-style: normal;
}

.subtitle {
  color: var(--color-text-muted);
  font-size: var(--font-size-body);
  margin-bottom: var(--space-md);
}

.card--dark .subtitle {
  color: rgba(255, 255, 255, 0.9);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(36, 158, 189, 0.35);
}

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

.btn--primary:hover,
.btn--primary:focus-visible {
  background: #1d8aa8;
  color: var(--color-white);
}

/* Media stack */
.media-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.media-stack img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Accordion */
.accordion {
  border-top: 1px solid rgba(69, 36, 88, 0.12);
}

.card--dark .accordion {
  border-color: rgba(255, 255, 255, 0.2);
}

.accordion__item {
  border-bottom: 1px solid rgba(69, 36, 88, 0.12);
}

.card--dark .accordion__item {
  border-color: rgba(255, 255, 255, 0.2);
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-md) 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-align: left;
  color: var(--color-primary);
  background: transparent;
  border: none;
  cursor: pointer;
}

.card--dark .accordion__trigger {
  color: var(--color-white);
}

.accordion__trigger::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: rotate(45deg);
  transition: transform 0.2s;
  flex-shrink: 0;
}

.accordion__trigger[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

.accordion__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.3s ease;
}

.accordion__panel.is-open {
  grid-template-rows: 1fr;
}

.accordion__panel-inner {
  overflow: hidden;
}

.accordion__content {
  padding: 0 0 var(--space-md);
  color: var(--color-text);
}

.card--dark .accordion__content {
  color: rgba(255, 255, 255, 0.92);
}

/* Service rows */
.service {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid rgba(69, 36, 88, 0.1);
}

.service:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.service__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(36, 158, 189, 0.12);
  color: var(--color-accent);
  border-radius: var(--radius);
  flex-shrink: 0;
}

.service__icon svg {
  width: 24px;
  height: 24px;
}

.service h2,
.service h3,
.service h4 {
  margin-bottom: var(--space-xs);
  font-size: 1rem;
  color: var(--color-primary);
}

.card--dark .service h2,
.card--dark .service h3,
.card--dark .service h4 {
  color: var(--color-white);
}

.accordion__panel-inner {
  min-height: 0;
}

/* Map embed */
.map-embed {
  width: 100%;
  height: 280px;
  border: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Legal / prose page */
.prose {
  max-width: 48rem;
  margin: 0 auto;
  background: var(--color-white);
  padding: var(--space-lg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.prose h1 {
  margin-bottom: var(--space-md);
}

.prose h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.prose h3 {
  margin-top: var(--space-md);
  font-size: 1rem;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  border-top: 6px solid var(--color-accent);
  padding: var(--space-md) 0;
  margin-top: var(--space-xl);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.site-footer p,
.site-footer a {
  color: rgba(255, 255, 255, 0.9);
  font-size: 0.875rem;
  margin: 0;
}

.site-footer a:hover {
  color: var(--color-white);
}

/* Reveal on scroll */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* Divider in dark card */
.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.25);
  margin: var(--space-md) 0;
  border: none;
}

.divider--light {
  background: rgba(69, 36, 88, 0.12);
}

/* Page hero strip */
.page-hero {
  padding: var(--space-lg) 0 var(--space-md);
}

.page-hero h1 {
  margin-bottom: 0;
}