/* ============================================
   Visitenkarte – Dr. Bernd Brägelmann
   Minimalist Light Medical Professional Theme
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-bg: #f8f7f5;
  --color-bg-alt: #f0efec;
  --color-bg-card: #ffffff;
  --color-text: #2d2d2d;
  --color-text-light: #5a5a5a;
  --color-text-muted: #8a8a8a;
  --color-accent: #2B6777;
  --color-accent-light: #3a7a8a;
  --color-accent-subtle: rgba(43, 103, 119, 0.08);
  --color-border: #e2e0dc;
  --color-border-light: #ece9e4;
  --color-white: #ffffff;

  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Source Sans 3', 'Helvetica Neue', sans-serif;

  --max-width: 960px;
  --nav-height: 72px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-lg: 0 4px 20px rgba(0,0,0,0.08);

  --radius-sm: 4px;
  --radius-md: 8px;

  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

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

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
}

h1 {
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2rem;
  margin-bottom: 0.5em;
}

h3 {
  font-size: 1.35rem;
  margin-bottom: 0.4em;
}

h4 {
  font-size: 1.1rem;
  font-weight: 600;
}

p {
  margin-bottom: 1em;
}

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

/* --- Utility --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-divider {
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  margin-bottom: 2rem;
  border: none;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: rgba(248, 247, 245, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  border-bottom-color: var(--color-border-light);
  box-shadow: 0 1px 6px rgba(0,0,0,0.03);
  background: rgba(248, 247, 245, 0.97);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.nav-brand:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-light);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--color-accent);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
  border-radius: 1px;
}

.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
  padding-top: calc(var(--nav-height) + 6rem);
  padding-bottom: 6rem;
  text-align: center;
}

.hero-name {
  font-family: var(--font-heading);
  font-size: 3.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: 0.25rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--color-accent);
  margin-bottom: 1.25rem;
  letter-spacing: 0.01em;
}

.hero-tagline {
  font-family: var(--font-body);
  font-size: 1.05rem;
  color: var(--color-text-light);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.65;
}

.hero-line {
  width: 48px;
  height: 2px;
  background: var(--color-accent);
  margin: 2rem auto 0;
  border: none;
}

/* --- Sections --- */
.section {
  padding: 5rem 0;
}

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

.section-header {
  margin-bottom: 3rem;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Referenzen --- */
.ref-subsection {
  margin-bottom: 2.5rem;
}

.ref-subsection:last-child {
  margin-bottom: 0;
}

.ref-subsection h3 {
  font-family: var(--font-heading);
  color: var(--color-text);
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border-light);
  margin-bottom: 1rem;
}

.ref-item {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.6rem 0;
}

.ref-item + .ref-item {
  border-top: 1px solid var(--color-border-light);
}

.ref-item a {
  font-weight: 500;
}

.ref-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--color-accent);
  opacity: 0.7;
}

.ref-note {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-style: italic;
  margin-top: 0.5rem;
  padding-left: 0.25rem;
}

/* --- Scripte Cards --- */
.scripts-intro {
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 560px;
}

.scripts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.script-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: box-shadow var(--transition), border-color var(--transition), transform var(--transition);
  text-decoration: none;
  display: block;
}

.script-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.script-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
  transition: color var(--transition);
}

.script-card:hover .script-card-title {
  color: var(--color-accent);
}

.script-card-arrow {
  display: inline-block;
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-top: 0.5rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--transition), transform var(--transition);
}

.script-card:hover .script-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* --- Kontakt --- */
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.15rem;
}

.kontakt-row {
  display: flex;
  gap: 1rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--color-border-light);
  align-items: baseline;
}

.kontakt-row:last-of-type {
  border-bottom: none;
}

.kontakt-label {
  font-weight: 600;
  color: var(--color-text);
  min-width: 100px;
  font-size: 0.9rem;
}

.kontakt-value {
  color: var(--color-text-light);
  font-size: 0.95rem;
}

.kontakt-note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: var(--color-accent-subtle);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
  color: var(--color-text-light);
}

/* --- Footer --- */
.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
  list-style: none;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer-copy {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* --- Legal Pages (Impressum, Datenschutz) --- */
.legal-page {
  padding-top: calc(var(--nav-height) + 4rem);
  padding-bottom: 4rem;
  min-height: calc(100vh - 80px);
}

.legal-page h1 {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.legal-page h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--color-border-light);
}

.legal-page h3 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.legal-page p {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

.legal-page ul {
  margin: 0.5rem 0 1rem 1.5rem;
  color: var(--color-text-light);
}

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

.legal-content {
  max-width: 720px;
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.875rem;
  color: var(--color-accent);
  margin-bottom: 2rem;
}

.legal-back:hover {
  color: var(--color-accent-light);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(248, 247, 245, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0;
    border-bottom: 1px solid var(--color-border-light);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition), opacity var(--transition);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 2rem;
    font-size: 1rem;
  }

  .nav-links a::after {
    display: none;
  }

  h1, .hero-name {
    font-size: 2.25rem;
  }

  .hero-title {
    font-size: 1.2rem;
  }

  .hero {
    padding-top: calc(var(--nav-height) + 3.5rem);
    padding-bottom: 3.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }

  .container {
    padding: 0 1.25rem;
  }

  .scripts-grid {
    grid-template-columns: 1fr;
  }

  .kontakt-row {
    flex-direction: column;
    gap: 0.15rem;
  }

  .kontakt-label {
    min-width: unset;
  }

  .legal-page {
    padding-top: calc(var(--nav-height) + 2.5rem);
  }

  .legal-page h1 {
    font-size: 1.75rem;
  }
}

@media (max-width: 480px) {
  h1, .hero-name {
    font-size: 1.85rem;
  }

  .hero-title {
    font-size: 1.05rem;
  }

  h2 {
    font-size: 1.6rem;
  }

  .scripts-grid {
    gap: 1rem;
  }
}