/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(19, 25, 32, 0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 20px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  flex-shrink: 0;
}

.header-logo img {
  width: 38px;
  height: 38px;
  border-radius: 50%;
}

.header-logo h1 {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

.header-search {
  flex: 1;
  max-width: 480px;
  position: relative;
}

.header-search input {
  width: 100%;
  height: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 0 16px 0 42px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.header-search input:focus {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
}

.header-search input::placeholder {
  color: var(--text-muted);
}

.header-search .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-tertiary);
}

.nav-link.active {
  color: var(--accent-cyan);
  background: var(--accent-cyan-dim);
}

.coin-display {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--accent-green-dim);
  border-radius: var(--radius-lg);
  color: var(--accent-green);
  font-weight: 600;
  font-size: 0.85rem;
}

.coin-display .coin-icon {
  font-size: 1rem;
}

.user-menu {
  position: relative;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--bg-primary);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

.user-avatar:hover {
  transform: scale(1.1);
}

.user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  z-index: 100;
}

.user-dropdown.show {
  display: block;
  animation: fadeInDown 0.2s ease;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.85rem;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.dropdown-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown-item.danger {
  color: var(--danger);
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 0;
}

.pro-badge {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: var(--accent-gradient);
  color: var(--bg-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== MAIN CONTENT ===== */
.main-content {
  padding-top: 64px;
  min-height: 100vh;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 24px;
}

.page-section {
  padding: 40px 0;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.footer a {
  color: var(--text-secondary);
}

/* ===== MOBILE NAV ===== */
.mobile-menu-btn {
  display: none;
  background: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  padding: 4px;
}

@media (max-width: 768px) {
  .header {
    padding: 0 16px;
  }

  .header-search {
    display: none;
  }

  .header-nav .nav-link span {
    display: none;
  }

  .mobile-menu-btn {
    display: block;
  }

  .container {
    padding: 16px;
  }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes coinSpin {
  from { transform: rotateY(0deg); }
  to { transform: rotateY(360deg); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 5px rgba(0, 229, 255, 0.3); }
  50% { box-shadow: 0 0 20px rgba(0, 229, 255, 0.6); }
}