/* ============================================
   Gelenkgesundheit — Designer Layout
   Variables, typography, animations, layout
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&display=swap');

:root {
  /* Contrast & accent palette */
  --accent-1: #ff3366;
  --accent-2: #00d4aa;
  --accent-3: #7c3aed;
  --accent-4: #f59e0b;
  --accent-5: #06b6d4;
  --bg-dark: #0f0f12;
  --bg-card: #16161c;
  --bg-light: #1a1a22;
  --text-primary: #f4f4f6;
  --text-muted: #9ca3af;
  --border-subtle: rgba(255,255,255,0.08);
  --shadow-glow: 0 0 60px -12px rgba(0, 212, 170, 0.35);
  --shadow-card: 0 24px 48px -12px rgba(0,0,0,0.5);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition-fast: 0.2s ease;
  --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  /* Typography */
  --font-display: 'Bebas Neue', sans-serif;
  --font-heading: 'Syne', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-primary);
  background: var(--bg-dark);
  overflow-x: hidden;
}

/* ----- Banner ----- */
.banner-ad {
  background: linear-gradient(90deg, var(--accent-3) 0%, var(--accent-1) 100%);
  color: white;
  text-align: center;
  padding: 0.5rem 1rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  animation: banner-pulse 3s ease-in-out infinite;
}

@keyframes banner-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.85; }
}

/* ----- Navigation ----- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 15, 18, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-medium);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
  transition: color var(--transition-fast);
}

.logo-wrap:hover {
  color: var(--accent-2);
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  color: var(--accent-2);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a[href="index.html"] {
  color: var(--accent-2);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--accent-2);
  transition: width var(--transition-medium);
}

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

/* ----- Hero ----- */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1.5rem 6rem;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    to bottom,
    rgba(15, 15, 18, 0.75) 0%,
    rgba(15, 15, 18, 0.85) 50%,
    rgba(15, 15, 18, 0.95) 100%
  );
}

.hero-inner {
  position: relative;
  z-index: 2;
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  background: rgba(0, 212, 170, 0.2);
  color: var(--accent-2);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
  animation: fade-in-up 0.8s ease forwards;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin: 0 0 1.25rem;
  animation: fade-in-up 0.8s 0.1s ease both;
}

.hero-title .line2 {
  color: var(--accent-2);
  display: block;
  margin-top: 0.1em;
}

.hero-desc {
  font-size: 1.125rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin: 0 0 1rem;
  animation: fade-in-up 0.8s 0.15s ease both;
}

.hero-desc-2 {
  margin-bottom: 1.75rem;
  animation: fade-in-up 0.8s 0.2s ease both;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem 1.5rem;
  margin-bottom: 2rem;
  animation: fade-in-up 0.8s 0.25s ease both;
}

.hero-stat {
  font-size: 0.8125rem;
  color: var(--text-muted);
  padding: 0.5rem 0.85rem;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
}

.hero-stat strong {
  color: var(--accent-2);
  font-weight: 600;
  margin-right: 0.25rem;
}

.hero-cta {
  display: inline-block;
  padding: 0.9rem 1.75rem;
  background: var(--accent-2);
  color: var(--bg-dark);
  font-family: var(--font-heading);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-medium);
  animation: fade-in-up 0.8s 0.3s ease both;
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

/* ----- Sections common ----- */
.section {
  max-width: 1280px;
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

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

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.section-intro {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text-muted);
  margin: 0;
  max-width: 52ch;
}

/* ----- Content grid (nutrition, movement) ----- */
.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.content-grid .media-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.content-grid .media-wrap img {
  width: 100%;
  height: auto;
  display: block;
  transition: transform var(--transition-slow);
}

.content-grid .media-wrap:hover img {
  transform: scale(1.04);
}

.content-text .intro {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.content-subtitle {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.list-cards {
  list-style: none;
  padding: 0;
  margin: 0;
}

.list-cards li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: padding-left var(--transition-fast);
}

.list-cards li:hover {
  padding-left: 0.5rem;
}

.list-cards li:last-child {
  border-bottom: none;
}

.list-cards .icon {
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--accent-2);
}

.list-cards h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
}

.list-cards p {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--text-muted);
}

/* ----- Cards grid (detailed nutrition) ----- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  transition: transform var(--transition-medium), box-shadow var(--transition-medium), border-color var(--transition-fast);
  animation: fade-in-up 0.7s ease backwards;
}

.card:nth-child(1) { animation-delay: 0.05s; }
.card:nth-child(2) { animation-delay: 0.1s; }
.card:nth-child(3) { animation-delay: 0.15s; }
.card:nth-child(4) { animation-delay: 0.2s; }
.card:nth-child(5) { animation-delay: 0.25s; }
.card:nth-child(6) { animation-delay: 0.3s; }

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
  border-color: rgba(0, 212, 170, 0.25);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.card:hover .card-img {
  transform: scale(1.05);
}

.card-body {
  padding: 1.5rem;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.card-text {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
}

/* ----- Weight section ----- */
.weight-section {
  background: var(--bg-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border-subtle);
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.weight-section .icon-wrap {
  flex-shrink: 0;
  width: 3rem;
  height: 3rem;
  color: var(--accent-4);
}

.weight-section .intro {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.tips-box {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-4);
}

.tips-box h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.tips-box ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.tips-box li {
  margin-bottom: 0.35rem;
}

/* ----- Daily life (two columns) ----- */
.daily-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.daily-card {
  background: var(--bg-card);
  padding: 2rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.daily-card:hover {
  border-color: var(--accent-3);
  transform: translateY(-2px);
}

.daily-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--accent-3);
}

.daily-card-p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
  line-height: 1.5;
}

.daily-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.daily-card li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.daily-card li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-3);
  font-weight: 700;
}

/* ----- Consult section ----- */
.consult-box {
  background: linear-gradient(135deg, rgba(6, 182, 212, 0.12) 0%, rgba(124, 58, 237, 0.08) 100%);
  border: 1px solid rgba(6, 182, 212, 0.25);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}

.consult-box .icon-wrap {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  color: var(--accent-5);
}

.consult-box .intro {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.consult-box ul {
  margin: 0;
  padding-left: 1.25rem;
  color: var(--text-primary);
  font-size: 0.9375rem;
}

.consult-box li {
  margin-bottom: 0.35rem;
}

/* ----- Step plan + testimonial ----- */
.plan-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}

.plan-grid.plan-grid-three {
  grid-template-columns: 1fr 1fr 1fr;
}

.steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: step;
}

.steps-list li {
  counter-increment: step;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  border: 1px solid var(--border-subtle);
  position: relative;
  padding-left: 4rem;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.steps-list li:hover {
  border-color: var(--accent-2);
  transform: translateX(6px);
}

.steps-list li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--accent-2);
  line-height: 1;
}

.testimonial-box {
  background: linear-gradient(135deg, var(--accent-2) 0%, rgba(0, 212, 170, 0.7) 100%);
  color: var(--bg-dark);
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.testimonial-box h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 1rem;
}

.testimonial-box p {
  margin: 0;
  font-style: italic;
  font-size: 1rem;
  line-height: 1.6;
}

.plan-photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.plan-photo img {
  width: 100%;
  height: 100%;
  min-height: 240px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

.plan-photo:hover img {
  transform: scale(1.05);
}

/* ----- Contact form ----- */
.contact-section {
  background: var(--bg-light);
  padding: 5rem 1.5rem;
}

.contact-wrap {
  max-width: 560px;
  margin: 0 auto;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-card);
}

.contact-wrap h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin: 0 0 0.5rem;
}

.contact-wrap .sub {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}

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

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-dark);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.8;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-2);
  box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-group select {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--text-primary);
  background: var(--bg-dark);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.form-group select:focus {
  outline: none;
  border-color: var(--accent-2);
}

.form-consent {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.form-consent input {
  margin-top: 0.25rem;
  accent-color: var(--accent-2);
}

.form-consent label {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.form-consent a {
  color: var(--accent-2);
  text-decoration: underline;
}

.form-consent a:hover {
  text-decoration: none;
}

.btn-submit {
  width: 100%;
  padding: 1rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1rem;
  color: var(--bg-dark);
  background: var(--accent-2);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-medium);
}

.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.form-disclaimer {
  margin-top: 1rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  text-align: center;
}

/* ----- Inner pages (About, Privacy, Terms, etc.) ----- */
.page-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page-main {
  flex: 1;
  padding: 3rem 1.5rem 4rem;
}

.page-content {
  max-width: 800px;
  margin: 0 auto;
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.page-lead {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.page-content h2 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
  color: var(--accent-2);
}

.page-content h3 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
  color: var(--text-primary);
}

.page-content p,
.page-content li {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.page-content ul {
  margin: 0 0 1rem;
  padding-left: 1.5rem;
}

.page-content a {
  color: var(--accent-2);
  text-decoration: none;
}

.page-content a:hover {
  text-decoration: underline;
}

.page-content strong {
  color: var(--text-primary);
}

.page-form {
  max-width: 560px;
}

/* ----- Footer ----- */
.footer {
  background: var(--bg-card);
  border-top: 1px solid var(--border-subtle);
  padding: 3rem 1.5rem;
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.footer-disclaimer {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.footer-contact {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.footer-contact a {
  color: var(--accent-2);
  text-decoration: none;
}

.footer-contact a:hover {
  text-decoration: underline;
}

.footer-links {
  margin-bottom: 1.5rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  margin: 0 0.75rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--accent-2);
}

.footer-refs {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.footer-refs a {
  color: var(--text-primary);
  text-decoration: underline;
}

.footer-refs a:hover {
  color: var(--accent-2);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.8;
  margin: 0;
}

/* ----- Animations ----- */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes scale-in {
  from {
    opacity: 0;
    transform: scale(0.96);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Scroll-triggered visibility (optional enhancement) */
.reveal {
  opacity: 0;
  transform: translateY(20px);
}

.reveal.visible {
  animation: fade-in-up 0.7s ease forwards;
}

/* ----- Responsive ----- */
@media (max-width: 1024px) {
  .hero {
    min-height: 80vh;
    padding: 4rem 1rem 5rem;
  }

  .hero-stats {
    flex-direction: column;
    align-items: center;
  }

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

  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .weight-section {
    flex-direction: column;
  }

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

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

  .plan-grid.plan-grid-three {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .nav-links {
    gap: 1rem;
  }

  .hero {
    min-height: 75vh;
    padding: 3rem 1rem 4rem;
  }

  .hero-title {
    font-size: 2.75rem;
  }

  .hero-desc,
  .hero-desc-2 {
    font-size: 1rem;
  }

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

  .section {
    padding: 3rem 1rem;
  }

  .consult-box,
  .weight-section {
    flex-direction: column;
  }
}