/* Aurora Glassmorphism — Dreamy Gradient with Frosted Glass */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #0f0c29;
  color: #fff;
  line-height: 1.6;
  overflow-x: hidden;
}

/* Animated Aurora Background */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(
    135deg,
    #0f0c29 0%,
    #302b63 25%,
    #24243e 50%,
    #0f0c29 75%,
    #302b63 100%
  );
  background-size: 400% 400%;
  animation: aurora 20s ease infinite;
  z-index: -2;
}

@keyframes aurora {
  0% { background-position: 0% 50%; }
  25% { background-position: 100% 50%; }
  50% { background-position: 100% 100%; }
  75% { background-position: 0% 100%; }
  100% { background-position: 0% 50%; }
}

/* Floating orbs */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 119, 198, 0.2) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(120, 255, 198, 0.15) 0%, transparent 60%);
  animation: float 30s ease-in-out infinite;
  z-index: -1;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  33% { transform: translate(30px, -30px) rotate(120deg); }
  66% { transform: translate(-20px, 20px) rotate(240deg); }
}

/* Glass Card Mixin */
.glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 20px;
}

/* Navigation */
.nav {
  background: rgba(15, 12, 41, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  padding: 0 20px;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 1000;
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}
.nav-logo { font-size: 24px; }
.nav-menu { display: flex; gap: 24px; align-items: center; }
.nav-link {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all 0.3s;
}
.nav-link:hover {
  color: #fff;
  text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}
.nav-actions { display: flex; gap: 10px; align-items: center; }
.lang-select { display: flex; gap: 6px; }
.lang-btn {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  padding: 6px 14px;
  font-size: 12px;
  cursor: pointer;
  border-radius: 20px;
  transition: all 0.3s;
}
.lang-btn.active {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

/* Buttons */
.btn {
  padding: 10px 24px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 25px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  border: none;
  transition: all 0.3s;
}
.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: #fff;
}
.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-block { display: block; width: 100%; text-align: center; }
.btn-telegram { background: linear-gradient(135deg, #0088cc, #00aaff); color: #fff; }

/* Hero */
.hero {
  text-align: center;
  padding: 100px 20px 60px;
  position: relative;
}
.hero-title {
  font-size: 48px;
  font-weight: 800;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #fff 0%, #a78bfa 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}
.hero-stats { display: flex; justify-content: center; gap: 60px; }
.stat { text-align: center; }
.stat-number {
  display: block;
  font-size: 40px;
  font-weight: 700;
  background: linear-gradient(135deg, #667eea, #764ba2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Sections */
.section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-alt {
  background: rgba(255, 255, 255, 0.03);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.section-title {
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 40px;
  text-align: center;
}
.container { max-width: 100%; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.about-card {
  padding: 30px;
  transition: all 0.3s;
}
.about-card:hover {
  transform: translateY(-5px);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}
.about-icon { font-size: 2.5rem; margin-bottom: 16px; }
.about-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: #fff;
}
.about-card p { font-size: 14px; color: rgba(255, 255, 255, 0.7); }

/* Search */
.search-bar {
  display: flex;
  max-width: 400px;
  margin: 0 auto 30px;
  position: relative;
}
.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 18px;
  height: 18px;
  color: rgba(255, 255, 255, 0.5);
}
.search-input {
  width: 100%;
  padding: 14px 18px 14px 44px;
  border-radius: 25px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  font-size: 15px;
  color: #fff;
}
.search-input:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.12);
}

/* Members */
.members-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.member-card {
  padding: 20px;
  transition: all 0.3s;
  cursor: pointer;
}
.member-card:hover {
  transform: translateY(-3px);
  background: rgba(255, 255, 255, 0.12);
}
.user-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.2);
}
.user-avatar-text {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 600;
}
.member-info h4 { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.member-company { font-size: 13px; color: rgba(255, 255, 255, 0.6); }
.member-location, .member-posts { font-size: 13px; color: rgba(255, 255, 255, 0.5); }
.rank-badge {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 15px;
  position: absolute;
  top: -6px;
  right: 0;
  font-weight: 600;
}
.rank-badge.rank-rookie { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.6); }
.rank-badge.rank-beginner { background: rgba(74,222,128,0.2); color: #4ade80; }
.rank-badge.rank-member { background: rgba(96,165,250,0.2); color: #60a5fa; }
.rank-badge.rank-contributor { background: rgba(45,212,191,0.2); color: #2dd4bf; }
.rank-badge.rank-veteran { background: rgba(192,132,252,0.2); color: #c084fc; }
.rank-badge.rank-expert { background: rgba(251,191,36,0.2); color: #fbbf24; }
.rank-badge.rank-legend { background: rgba(248,113,113,0.2); color: #f87171; }

/* Wiki Cards */
.wiki-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.wiki-card {
  padding: 24px;
  cursor: pointer;
  transition: all 0.3s;
}
.wiki-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}
.wiki-card-title { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.wiki-card-excerpt { font-size: 14px; color: rgba(255, 255, 255, 0.6); margin-bottom: 12px; }
.wiki-card-footer { display: flex; justify-content: space-between; font-size: 13px; color: rgba(255, 255, 255, 0.5); }
.wiki-card-subtopic { color: #a78bfa; }
.no-results { padding: 30px; text-align: center; color: rgba(255, 255, 255, 0.5); }
.loading-text { padding: 30px; text-align: center; color: rgba(255, 255, 255, 0.4); font-style: italic; }

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  padding: 32px;
  max-width: 480px;
  width: 90%;
  position: relative;
  animation: glassIn 0.3s ease;
}
@keyframes glassIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  color: #fff;
  transition: background 0.3s;
}
.modal-close:hover { background: rgba(255, 255, 255, 0.2); }
.login-icon { font-size: 3rem; text-align: center; margin-bottom: 20px; }
.login-hint { color: rgba(255, 255, 255, 0.7); text-align: center; margin-bottom: 24px; }
.form-group { margin-bottom: 16px; }
.form-input {
  width: 100%;
  padding: 14px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 15px;
  color: #fff;
}
.form-input:focus {
  outline: none;
  border-color: rgba(167, 139, 250, 0.5);
  background: rgba(255, 255, 255, 0.12);
}
.login-step { display: none; }
.login-step.active { display: block; }

/* Profile & Detail */
.profile-username { font-size: 1.3rem; font-weight: 600; margin-bottom: 10px; }
.profile-rank { margin-bottom: 20px; }
.user-detail-modal { max-width: 540px; }
.user-detail-content { padding: 10px; }
.user-detail-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 20px;
  overflow: hidden;
  border: 2px solid rgba(255, 255, 255, 0.2);
}
.user-detail-header { text-align: center; margin-bottom: 20px; }
.user-detail-name-rank { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 10px; }
.user-detail-name-rank h2 { font-size: 1.3rem; font-weight: 700; }
.user-detail-fields { display: grid; gap: 12px; }
.detail-field {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.detail-label { color: rgba(255, 255, 255, 0.6); font-size: 14px; }
.detail-value { color: #fff; font-size: 14px; text-align: right; }
.user-detail-company { color: rgba(255, 255, 255, 0.6); text-align: center; }

/* Telegram Banner */
.telegram-banner {
  padding: 20px;
  margin: 20px auto;
  max-width: 1200px;
  display: flex;
  align-items: center;
  gap: 16px;
  animation: glow 3s ease-in-out infinite;
}
@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px rgba(102, 126, 234, 0.2); }
  50% { box-shadow: 0 0 40px rgba(102, 126, 234, 0.4); }
}
.banner-icon { font-size: 2rem; }
.banner-text strong { color: #fff; }

/* Newsletter */
.newsletter-card { text-align: center; max-width: 400px; margin: 0 auto; }
.newsletter-icon { font-size: 2.5rem; margin-bottom: 16px; }
.newsletter-hint { color: rgba(255, 255, 255, 0.7); margin-bottom: 20px; }

/* Footer */
.footer {
  padding: 40px 20px;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 40px;
}
.footer-brand { margin-bottom: 16px; }
.footer-logo { font-size: 1.5rem; }
.footer-title { color: #fff; margin-left: 10px; font-size: 14px; font-weight: 600; }
.footer-links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; flex-wrap: wrap; }
.footer-links a { color: rgba(255, 255, 255, 0.6); text-decoration: none; font-size: 13px; }
.footer-links a:hover { color: #fff; text-shadow: 0 0 10px rgba(255, 255, 255, 0.5); }
.footer-bottom p { color: rgba(255, 255, 255, 0.4); margin: 4px 0; font-size: 12px; }
.footer-bottom a { color: #a78bfa; }
.footer-copy { font-size: 12px; }

/* Hide/Show */
.hide-en { display: none; }
body[data-lang="en"] .hide-en { display: inline; }
body[data-lang="en"] .hide-de { display: none; }
.hidden { display: none !important; }

/* Responsive */
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .nav-menu.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(15, 12, 41, 0.95);
    flex-direction: column;
    padding: 16px;
    gap: 12px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 3px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
  }
  .nav-toggle span { display: block; width: 20px; height: 2px; background: #fff; }
  .hero-title { font-size: 28px; }
  .hero-subtitle { font-size: 16px; }
  .hero-stats { gap: 30px; flex-wrap: wrap; }
  .stat-number { font-size: 28px; }
  .about-grid { grid-template-columns: 1fr; }
  .wiki-grid { grid-template-columns: 1fr; }
  .members-grid { grid-template-columns: 1fr; }
}
@media (min-width: 769px) {
  .nav-toggle { display: none; }
}