/* ============================================
   BeVital GmbH - Futuristic Corporate Design
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0e1a;
  --bg-secondary: #0f1528;
  --bg-card: rgba(15, 21, 40, 0.7);
  --green-primary: #4CAF50;
  --green-dark: #2E7D32;
  --green-light: #66BB6A;
  --orange-primary: #E8971E;
  --orange-dark: #D4860B;
  --orange-light: #F5B041;
  --text-primary: #e8e8f0;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a80;
  --glass-bg: rgba(15, 21, 40, 0.6);
  --glass-border: rgba(76, 175, 80, 0.15);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --gradient-green: linear-gradient(135deg, #2E7D32, #4CAF50);
  --gradient-orange: linear-gradient(135deg, #D4860B, #E8971E);
  --gradient-mixed: linear-gradient(135deg, #2E7D32, #E8971E);
  --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --font-heading: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: var(--green-light);
  text-decoration: none;
  transition: var(--transition-smooth);
}

a:hover {
  color: var(--orange-primary);
}

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

/* --- Three.js Canvas --- */
#three-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* --- Main Content Wrapper --- */
.content-wrapper {
  position: relative;
  z-index: 1;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.navbar.scrolled {
  padding: 0.6rem 2rem;
  background: rgba(10, 14, 26, 0.95);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-logo img {
  height: 45px;
  width: auto;
  transition: var(--transition-smooth);
}

.navbar.scrolled .navbar-logo img {
  height: 35px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition-smooth);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: rgba(76, 175, 80, 0.1);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--gradient-green);
  border-radius: 1px;
}

/* Language Switcher */
.lang-switch {
  display: flex;
  gap: 0.25rem;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 8px;
  padding: 0.2rem;
}

.lang-switch button {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.3rem 0.6rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.lang-switch button.active {
  background: var(--gradient-green);
  color: #fff;
}

.lang-switch button:hover:not(.active) {
  color: var(--text-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-smooth);
  border-radius: 1px;
}

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

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

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

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 8rem 2rem 4rem;
  position: relative;
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--green-light), var(--orange-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-green);
  color: #fff;
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(76, 175, 80, 0.4);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(76, 175, 80, 0.1);
  border-color: var(--green-primary);
  transform: translateY(-2px);
  color: var(--text-primary);
}

/* --- Sections --- */
section {
  padding: 6rem 2rem;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 4rem;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--text-primary), var(--green-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Gradient divider line */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-primary), var(--orange-primary), transparent);
  margin: 0 auto;
  max-width: 400px;
  opacity: 0.5;
}

/* --- Glass Cards --- */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  box-shadow: var(--glass-shadow);
  transition: var(--transition-smooth);
  perspective: 1000px;
}

.glass-card:hover {
  transform: translateY(-5px);
  border-color: rgba(76, 175, 80, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), 0 0 30px rgba(76, 175, 80, 0.1);
}

/* 3D tilt effect via JS */
.glass-card.tilt {
  transform-style: preserve-3d;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

/* --- Card Icons --- */
.card-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  background: var(--gradient-green);
  box-shadow: 0 4px 15px rgba(76, 175, 80, 0.2);
}

.card-icon.orange {
  background: var(--gradient-orange);
  box-shadow: 0 4px 15px rgba(232, 151, 30, 0.2);
}

.glass-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.glass-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* --- Team Cards --- */
.team-card {
  text-align: center;
  padding: 2.5rem 2rem;
}

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 1.5rem;
  background: var(--gradient-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: #fff;
  border: 3px solid rgba(76, 175, 80, 0.3);
  box-shadow: 0 0 30px rgba(76, 175, 80, 0.15);
}

.team-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.3rem;
}

.team-role {
  color: var(--orange-primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.team-skills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: center;
}

.skill-tag {
  background: rgba(76, 175, 80, 0.1);
  border: 1px solid rgba(76, 175, 80, 0.2);
  color: var(--green-light);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* --- Product Card --- */
.product-card {
  position: relative;
  overflow: hidden;
}

.product-card .badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  background: var(--gradient-orange);
  color: #fff;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.product-card .btn {
  margin-top: 1.5rem;
}

/* --- Contact Form --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-form .form-group {
  margin-bottom: 1.5rem;
}

.contact-form label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  padding: 0.85rem 1.2rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  outline: none;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  border-color: var(--green-primary);
  box-shadow: 0 0 20px rgba(76, 175, 80, 0.15);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 2rem;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--gradient-green);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.contact-info-item h4 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.contact-info-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
  background: rgba(5, 7, 15, 0.9);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: 3rem 2rem 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-brand img {
  height: 40px;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  margin-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  font-size: 0.8rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Scroll Animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.scale-in {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* Stagger children */
.stagger-children .fade-in:nth-child(1) { transition-delay: 0s; }
.stagger-children .fade-in:nth-child(2) { transition-delay: 0.15s; }
.stagger-children .fade-in:nth-child(3) { transition-delay: 0.3s; }
.stagger-children .fade-in:nth-child(4) { transition-delay: 0.45s; }

/* --- Glow Effects --- */
.glow-green {
  text-shadow: 0 0 20px rgba(76, 175, 80, 0.3);
}

.glow-orange {
  text-shadow: 0 0 20px rgba(232, 151, 30, 0.3);
}

/* --- Page Header (for subpages) --- */
.page-header {
  padding: 10rem 2rem 4rem;
  text-align: center;
  position: relative;
}

.page-header h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, var(--green-light), var(--orange-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-header p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto;
}

/* --- Legal Pages --- */
.legal-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}

.legal-content h2 {
  font-size: 1.5rem;
  margin: 2.5rem 0 1rem;
  color: var(--green-light);
}

.legal-content h3 {
  font-size: 1.2rem;
  margin: 1.5rem 0 0.75rem;
}

.legal-content p,
.legal-content li {
  color: var(--text-secondary);
  margin-bottom: 0.75rem;
}

.legal-content ul {
  padding-left: 1.5rem;
}

/* --- Cookie Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: 1.5rem 2rem;
  display: none;
}

.cookie-banner.show {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.cookie-banner p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
}

.cookie-buttons {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    z-index: 999;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.2rem;
    padding: 0.75rem 2rem;
  }

  .menu-toggle {
    display: flex;
    z-index: 1001;
  }

  .hero {
    padding: 7rem 1.5rem 3rem;
  }

  section {
    padding: 4rem 1.5rem;
  }

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

  .cookie-banner.show {
    flex-direction: column;
    text-align: center;
  }

  .grid-2, .grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

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

/* --- Utility --- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.text-center { text-align: center; }
.text-green { color: var(--green-light); }
.text-orange { color: var(--orange-primary); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 2rem; }